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
2469   { -1,                         NULL                            }
2470 };
2471
2472 static struct ValueTextInfo *action_arg_modes[] =
2473 {
2474   options_action_mode_none,
2475   options_action_mode_assign,
2476   options_action_mode_add_remove,
2477   options_action_mode_calculate,
2478 };
2479
2480 static struct
2481 {
2482   int value;
2483   int mode;
2484   struct ValueTextInfo *options;
2485 }
2486 action_arg_options[] =
2487 {
2488   { CA_NO_ACTION,               0,      options_action_arg_none,        },
2489   { CA_EXIT_PLAYER,             0,      options_action_arg_player,      },
2490   { CA_KILL_PLAYER,             0,      options_action_arg_player,      },
2491   { CA_MOVE_PLAYER,             0,      options_action_arg_direction,   },
2492   { CA_MOVE_PLAYER_NEW,         0,      options_action_arg_direction,   },
2493   { CA_RESTART_LEVEL,           0,      options_action_arg_none,        },
2494   { CA_SHOW_ENVELOPE,           0,      options_action_arg_envelope,    },
2495   { CA_SET_LEVEL_TIME,          3,      options_action_arg_number,      },
2496   { CA_SET_LEVEL_GEMS,          3,      options_action_arg_number,      },
2497   { CA_SET_LEVEL_SCORE,         3,      options_action_arg_number,      },
2498   { CA_SET_LEVEL_WIND,          1,      options_action_arg_direction,   },
2499   { CA_SET_LEVEL_RANDOM_SEED,   1,      options_action_arg_number,      },
2500   { CA_SET_PLAYER_KEYS,         2,      options_action_arg_key,         },
2501   { CA_SET_PLAYER_SPEED,        1,      options_action_arg_speed,       },
2502   { CA_SET_PLAYER_SHIELD,       1,      options_action_arg_shield,      },
2503   { CA_SET_PLAYER_GRAVITY,      1,      options_action_arg_gravity,     },
2504   { CA_SET_PLAYER_ARTWORK,      1,      options_action_arg_artwork,     },
2505   { CA_SET_PLAYER_INVENTORY,    0,      options_action_arg_inventory,   },
2506   { CA_SET_CE_VALUE,            3,      options_action_arg_value,       },
2507   { CA_SET_CE_SCORE,            3,      options_action_arg_value,       },
2508   { CA_SET_CE_ARTWORK,          1,      options_action_arg_artwork,     },
2509   { CA_SET_ENGINE_SCAN_MODE,    1,      options_action_arg_scan_mode,   },
2510
2511   { -1,                         FALSE,  NULL                            }
2512 };
2513
2514 static struct
2515 {
2516   int x, y;
2517   int gadget_id;
2518   int gadget_id_align;
2519   int size;     // char size of selectbox or '-1' (dynamically determined)
2520   struct ValueTextInfo *options;
2521   int *value;
2522   char *text_above, *text_left, *text_right, *infotext;
2523 } selectbox_info[ED_NUM_SELECTBOX] =
2524 {
2525   // ---------- level and editor settings -------------------------------------
2526
2527   {
2528     -1,                                 ED_LEVEL_SETTINGS_YPOS(8),
2529     GADGET_ID_TIME_OR_STEPS,            GADGET_ID_LEVEL_TIMELIMIT_UP,
2530     -1,
2531     options_time_or_steps,
2532     &level.use_step_counter,
2533     NULL, NULL, "(0 => no limit)",      "time or step limit"
2534   },
2535   {
2536     -1,                                 ED_LEVEL_SETTINGS_YPOS(10),
2537     GADGET_ID_TIME_SCORE_BASE,          GADGET_ID_LEVEL_TIMESCORE_UP,
2538     -1,
2539     options_time_score_base,
2540     &level.time_score_base,
2541     NULL, NULL, NULL,                   "time score for 1 or 10 seconds/steps"
2542   },
2543   {
2544     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(12),
2545     GADGET_ID_GAME_ENGINE_TYPE,         GADGET_ID_NONE,
2546     -1,
2547     options_game_engine_type,
2548     &level.game_engine_type,
2549     NULL, "game engine:", NULL,         "game engine"
2550   },
2551   {
2552     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2553     GADGET_ID_LEVELSET_SAVE_MODE,       GADGET_ID_NONE,
2554     -1,
2555     options_levelset_save_mode,
2556     &levelset_save_mode,
2557     "Action:", NULL, NULL,              "action when saving level set"
2558   },
2559
2560   // ---------- element settings: configure (several elements) ----------------
2561
2562   {
2563     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2564     GADGET_ID_WIND_DIRECTION,           GADGET_ID_NONE,
2565     -1,
2566     options_wind_direction,
2567     &level.wind_direction_initial,
2568     NULL, "initial wind direction:", NULL,      "initial wind direction"
2569   },
2570   {
2571     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
2572     GADGET_ID_PLAYER_SPEED,             GADGET_ID_NONE,
2573     -1,
2574     options_player_speed,
2575     &level.initial_player_stepsize[0],
2576     NULL, "initial player speed:", NULL,        "initial player speed"
2577   },
2578   {
2579     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2580     GADGET_ID_MM_BALL_CHOICE_MODE,      GADGET_ID_NONE,
2581     -1,
2582     options_group_choice_mode,
2583     &level.mm_ball_choice_mode,
2584     NULL, "choice type:", NULL,         "type of content choice"
2585   },
2586
2587   // ---------- element settings: configure 1 (custom elements) ---------------
2588
2589   {
2590     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2591     GADGET_ID_CUSTOM_ACCESS_TYPE,       GADGET_ID_NONE,
2592     -1,
2593     options_access_type,
2594     &custom_element.access_type,
2595     NULL, NULL, NULL,                   "type of access to this field"
2596   },
2597   {
2598     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2599     GADGET_ID_CUSTOM_ACCESS_LAYER,      GADGET_ID_CUSTOM_ACCESS_TYPE,
2600     -1,
2601     options_access_layer,
2602     &custom_element.access_layer,
2603     NULL, NULL, NULL,                   "layer of access for this field"
2604   },
2605   {
2606     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2607     GADGET_ID_CUSTOM_ACCESS_PROTECTED,  GADGET_ID_CUSTOM_ACCESS_LAYER,
2608     -1,
2609     options_access_protected,
2610     &custom_element.access_protected,
2611     NULL, NULL, NULL,                   "protected access for this field"
2612   },
2613   {
2614     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2615     GADGET_ID_CUSTOM_ACCESS_DIRECTION,  GADGET_ID_NONE,
2616     -1,
2617     options_access_direction,
2618     &custom_element.access_direction,
2619     NULL, "from", NULL,                 "access direction for this field"
2620   },
2621   {
2622     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2623     GADGET_ID_CUSTOM_WALK_TO_ACTION,    GADGET_ID_NONE,
2624     -1,
2625     options_walk_to_action,
2626     &custom_element.walk_to_action,
2627     NULL, NULL, NULL,                   "diggable/collectible/pushable"
2628   },
2629
2630   // ---------- element settings: configure 2 (custom elements) ---------------
2631
2632   {
2633     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(1),
2634     GADGET_ID_CUSTOM_MOVE_PATTERN,      GADGET_ID_NONE,
2635     -1,
2636     options_move_pattern,
2637     &custom_element.move_pattern,
2638     NULL, "can move", NULL,             "element move pattern"
2639   },
2640   {
2641     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2642     GADGET_ID_CUSTOM_MOVE_DIRECTION,    GADGET_ID_NONE,
2643     -1,
2644     options_move_direction,
2645     &custom_element.move_direction_initial,
2646     NULL, "starts moving", NULL,        "initial element move direction"
2647   },
2648   {
2649     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2650     GADGET_ID_CUSTOM_MOVE_STEPSIZE,     GADGET_ID_NONE,
2651     -1,
2652     options_move_stepsize,
2653     &custom_element.move_stepsize,
2654     NULL, "move/fall speed", NULL,      "speed of element movement"
2655   },
2656   {
2657     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2658     GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,   GADGET_ID_NONE,
2659     -1,
2660     options_move_leave_type,
2661     &custom_element.move_leave_type,
2662     // left text with leading spaces to place gadget next to "can dig" gadget
2663     // (needed because drawing area gadgets created after selectbox gadgets)
2664     // NULL, "can dig:    can", ":",    "leave behind or change element"
2665     NULL, "            can", ":",       "leave behind or change element"
2666   },
2667   {
2668     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
2669     GADGET_ID_CUSTOM_SMASH_TARGETS,     GADGET_ID_CUSTOM_CAN_SMASH,
2670     -1,
2671     options_smash_targets,
2672     &custom_element.smash_targets,
2673     NULL, "can smash", NULL,            "elements that can be smashed"
2674   },
2675   {
2676     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
2677     GADGET_ID_CUSTOM_SLIPPERY_TYPE,     GADGET_ID_NONE,
2678     -1,
2679     options_slippery_type,
2680     &custom_element.slippery_type,
2681     NULL, "slippery", NULL,             "where other elements fall down"
2682   },
2683   {
2684     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(10),
2685     GADGET_ID_CUSTOM_DEADLINESS,        GADGET_ID_NONE,
2686     -1,
2687     options_deadliness,
2688     &custom_element.deadliness,
2689     NULL, "deadly when", NULL,          "deadliness of element"
2690   },
2691   {
2692     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(11),
2693     GADGET_ID_CUSTOM_EXPLOSION_TYPE,    GADGET_ID_NONE,
2694     -1,
2695     options_explosion_type,
2696     &custom_element.explosion_type,
2697     NULL, "can explode", NULL,          "explosion type"
2698   },
2699
2700   // ---------- element settings: advanced (custom elements) ------------------
2701
2702   {
2703     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(3),
2704     GADGET_ID_CHANGE_TIME_UNITS,        GADGET_ID_NONE,
2705     -1,
2706     options_time_units,
2707     &custom_element_change.delay_frames,
2708     NULL, "delay time given in", NULL,  "delay time units for change"
2709   },
2710   {
2711     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(4),
2712     GADGET_ID_CHANGE_DIRECT_ACTION,     GADGET_ID_NONE,
2713     -1,
2714     options_change_direct_action,
2715     &custom_element_change.direct_action,
2716     NULL, NULL, NULL,                   "type of direct action"
2717   },
2718   {
2719     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(5),
2720     GADGET_ID_CHANGE_OTHER_ACTION,      GADGET_ID_NONE,
2721     -1,
2722     options_change_other_action,
2723     &custom_element_change.other_action,
2724     NULL, NULL, "element:",             "type of other element action"
2725   },
2726   {
2727     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(6),
2728     GADGET_ID_CHANGE_SIDE,              GADGET_ID_NONE,
2729     -1,
2730     options_change_trigger_side,
2731     &custom_element_change.trigger_side,
2732     NULL, "at", "side",                 "element side triggering change"
2733   },
2734   {
2735     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2736     GADGET_ID_CHANGE_PLAYER,            GADGET_ID_NONE,
2737     -1,
2738     options_change_trigger_player,
2739     &custom_element_change.trigger_player,
2740     NULL, "player:", " ",               "player that causes change"
2741   },
2742   {
2743     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2744     GADGET_ID_CHANGE_PAGE,              GADGET_ID_CHANGE_PLAYER,
2745     -1,
2746     options_change_trigger_page,
2747     &custom_element_change.trigger_page,
2748     NULL, "page:", NULL,                "change page that causes change"
2749   },
2750   {
2751     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(10),
2752     GADGET_ID_CHANGE_REPLACE_WHEN,      GADGET_ID_NONE,
2753     -1,
2754     options_change_replace_when,
2755     &custom_element_change.replace_when,
2756     NULL, "replace when", NULL,         "which elements can be replaced"
2757   },
2758   {
2759     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
2760     GADGET_ID_ACTION_TYPE,              GADGET_ID_NONE,
2761     15,
2762     options_action_type,
2763     &custom_element_change.action_type,
2764     NULL, NULL, NULL,                   "action on specified condition"
2765   },
2766   {
2767     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
2768     GADGET_ID_ACTION_MODE,              GADGET_ID_ACTION_TYPE,
2769     -1,
2770     options_action_mode_none,
2771     &custom_element_change.action_mode,
2772     NULL, NULL, NULL,                   "action operator"
2773   },
2774   {
2775     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
2776     GADGET_ID_ACTION_ARG,               GADGET_ID_ACTION_MODE,
2777     -1,
2778     options_action_arg_none,
2779     &custom_element_change.action_arg,
2780     NULL, NULL, NULL,                   "action parameter"
2781   },
2782   {
2783     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
2784     GADGET_ID_SELECT_CHANGE_PAGE,       GADGET_ID_NONE,
2785     3,
2786     options_change_page,
2787     &custom_element.current_change_page,
2788     NULL, NULL, NULL,                   "element change page"
2789   },
2790
2791   // ---------- element settings: configure (group elements) ------------------
2792
2793   {
2794     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2795     GADGET_ID_GROUP_CHOICE_MODE,        GADGET_ID_NONE,
2796     -1,
2797     options_group_choice_mode,
2798     &group_element_info.choice_mode,
2799     NULL, "choice type:", NULL,         "type of group element choice"
2800   },
2801 };
2802
2803 static struct
2804 {
2805   int x, y;
2806   int gadget_id;
2807   int gadget_id_align;
2808   int size;
2809   char *text;
2810   char *text_above, *text_left, *text_right, *infotext;
2811 } textbutton_info[ED_NUM_TEXTBUTTONS] =
2812 {
2813   // ---------- level and editor settings (tabs) ------------------------------
2814
2815   {
2816     ED_LEVEL_TABS_XPOS(0),              ED_LEVEL_TABS_YPOS(0),
2817     GADGET_ID_LEVELCONFIG_LEVEL,        GADGET_ID_NONE,
2818     8,                                  "Level",
2819     NULL, NULL, NULL,                   "Configure level settings"
2820   },
2821   {
2822     -1,                                 -1,
2823     GADGET_ID_LEVELCONFIG_LEVELSET,     GADGET_ID_LEVELCONFIG_LEVEL,
2824     8,                                  "Levelset",
2825     NULL, NULL, NULL,                   "Update this or create new level set"
2826   },
2827   {
2828     -1,                                 -1,
2829     GADGET_ID_LEVELCONFIG_EDITOR,       GADGET_ID_LEVELCONFIG_LEVELSET,
2830     8,                                  "Editor",
2831     NULL, NULL, NULL,                   "Configure editor settings"
2832   },
2833
2834   // ---------- element settings (tabs) ---------------------------------------
2835
2836   {
2837     ED_ELEMENT_TABS_XPOS(0),            ED_ELEMENT_TABS_YPOS(0),
2838     GADGET_ID_PROPERTIES_INFO,          GADGET_ID_NONE,
2839     8,                                  "Info",
2840     NULL, NULL, NULL,                   "Show information about element"
2841   },
2842   {
2843     -1,                                 -1,
2844     GADGET_ID_PROPERTIES_CONFIG,        GADGET_ID_PROPERTIES_INFO,
2845     8,                                  "Config",
2846     NULL, NULL, NULL,                   "Configure element properties"
2847   },
2848   {
2849     -1,                                 -1,
2850     GADGET_ID_PROPERTIES_CONFIG_1,      GADGET_ID_PROPERTIES_INFO,
2851     8,                                  "Config 1",
2852     NULL, NULL, NULL,                   "Configure element properties, part 1"
2853   },
2854   {
2855     -1,                                 -1,
2856     GADGET_ID_PROPERTIES_CONFIG_2,      GADGET_ID_PROPERTIES_CONFIG_1,
2857     8,                                  "Config 2",
2858     NULL, NULL, NULL,                   "Configure element properties, part 2"
2859   },
2860   {
2861     -1,                                 -1,
2862     GADGET_ID_PROPERTIES_CHANGE,        GADGET_ID_PROPERTIES_CONFIG_2,
2863     8,                                  "Change",
2864     NULL, NULL, NULL,                   "Configure custom element change pages"
2865   },
2866
2867   // ---------- level and editor settings (buttons) ---------------------------
2868
2869   {
2870     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2871     GADGET_ID_SAVE_LEVELSET,            GADGET_ID_LEVELSET_SAVE_MODE,
2872     -1,                                 "Save",
2873     NULL, NULL, NULL,                   "Update or create level set"
2874   },
2875   {
2876     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
2877     GADGET_ID_SAVE_AS_TEMPLATE_2,       GADGET_ID_NONE,
2878     -1,                                 "Save",
2879     NULL, NULL,                         "this level as level template",
2880     "Save current settings as new template"
2881   },
2882
2883   // ---------- element settings (buttons) ------------------------------------
2884
2885   {
2886     -1,                                 -1,
2887     GADGET_ID_SAVE_AS_TEMPLATE_1,       GADGET_ID_CUSTOM_USE_TEMPLATE_1,
2888     -1,                                 "Save",
2889     NULL, " ",                          "As Template",
2890     "Save current settings as new template"
2891   },
2892   {
2893     -1,                                 -1,
2894     GADGET_ID_ADD_CHANGE_PAGE,          GADGET_ID_PASTE_CHANGE_PAGE,
2895     -1,                                 "New",
2896     NULL, NULL, NULL,                   "Add new change page"
2897   },
2898   {
2899     -1,                                 -1,
2900     GADGET_ID_DEL_CHANGE_PAGE,          GADGET_ID_ADD_CHANGE_PAGE,
2901     -1,                                 "Delete",
2902     NULL, NULL, NULL,                   "Delete current change page"
2903   },
2904 };
2905
2906 static struct
2907 {
2908   int graphic;
2909   int x, y;
2910   int gadget_id;
2911   int gadget_id_align;
2912   char *text_left, *text_right, *infotext;
2913 } graphicbutton_info[ED_NUM_GRAPHICBUTTONS] =
2914 {
2915   {
2916     IMG_EDITOR_COUNTER_DOWN,
2917     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
2918     GADGET_ID_PREV_CHANGE_PAGE,         GADGET_ID_NONE,
2919     NULL, NULL,                         "select previous change page"
2920   },
2921   {
2922     IMG_EDITOR_COUNTER_UP,
2923     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2924     GADGET_ID_NEXT_CHANGE_PAGE,         GADGET_ID_SELECT_CHANGE_PAGE,
2925     NULL, "change page",                "select next change page"
2926   },
2927   {
2928     IMG_GFX_EDITOR_BUTTON_CP_COPY,
2929     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2930     GADGET_ID_COPY_CHANGE_PAGE,         GADGET_ID_NEXT_CHANGE_PAGE,
2931     " ", NULL,                          "copy settings from this change page"
2932   },
2933   {
2934     IMG_GFX_EDITOR_BUTTON_CP_PASTE,
2935     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2936     GADGET_ID_PASTE_CHANGE_PAGE,        GADGET_ID_COPY_CHANGE_PAGE,
2937     NULL, NULL,                         "paste settings to this change page"
2938   },
2939 };
2940
2941 static struct
2942 {
2943   int x, y;
2944 } scrollbutton_pos[ED_NUM_SCROLLBUTTONS];
2945
2946 static struct
2947 {
2948   int graphic;
2949   int gadget_id;
2950   char *infotext;
2951 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
2952 {
2953   {
2954     IMG_EDITOR_PLAYFIELD_SCROLL_UP,
2955     GADGET_ID_SCROLL_UP,
2956     "scroll level editing area up"
2957   },
2958   {
2959     IMG_EDITOR_PLAYFIELD_SCROLL_DOWN,
2960     GADGET_ID_SCROLL_DOWN,
2961     "scroll level editing area down"
2962   },
2963   {
2964     IMG_EDITOR_PLAYFIELD_SCROLL_LEFT,
2965     GADGET_ID_SCROLL_LEFT,
2966     "scroll level editing area left"
2967   },
2968   {
2969     IMG_EDITOR_PLAYFIELD_SCROLL_RIGHT,
2970     GADGET_ID_SCROLL_RIGHT,
2971     "scroll level editing area right"
2972   },
2973   {
2974     IMG_EDITOR_PALETTE_SCROLL_UP,
2975     GADGET_ID_SCROLL_LIST_UP,
2976     "scroll element list up ('Page Up')"
2977   },
2978   {
2979     IMG_EDITOR_PALETTE_SCROLL_DOWN,
2980     GADGET_ID_SCROLL_LIST_DOWN,
2981     "scroll element list down ('Page Down')"
2982   },
2983 };
2984
2985 static struct
2986 {
2987   int x, y;
2988   int width, height;
2989   int wheel_x, wheel_y;
2990   int wheel_width, wheel_height;
2991 } scrollbar_pos[ED_NUM_SCROLLBARS];
2992
2993 static struct
2994 {
2995   int graphic;
2996   int type;
2997   int gadget_id;
2998   char *infotext;
2999 } scrollbar_info[ED_NUM_SCROLLBARS] =
3000 {
3001   {
3002     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3003     GD_TYPE_SCROLLBAR_HORIZONTAL,
3004     GADGET_ID_SCROLL_HORIZONTAL,
3005     "scroll level editing area horizontally"
3006   },
3007   {
3008     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3009     GD_TYPE_SCROLLBAR_VERTICAL,
3010     GADGET_ID_SCROLL_VERTICAL,
3011     "scroll level editing area vertically"
3012   },
3013   {
3014     IMG_EDITOR_PALETTE_SCROLLBAR,
3015     GD_TYPE_SCROLLBAR_VERTICAL,
3016     GADGET_ID_SCROLL_LIST_VERTICAL,
3017     "scroll element list vertically"
3018   }
3019 };
3020
3021
3022 static struct
3023 {
3024   int x, y;
3025   int gadget_id;
3026   int gadget_id_align;
3027   int radio_button_nr;
3028   int *value;
3029   int checked_value;
3030   char *text_left, *text_right, *infotext;
3031 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
3032 {
3033   {
3034     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3035     GADGET_ID_RANDOM_PERCENTAGE,        GADGET_ID_LEVEL_RANDOM_UP,
3036     RADIO_NR_RANDOM_ELEMENTS,
3037     &random_placement_method,           RANDOM_USE_PERCENTAGE,
3038     " ", "percentage",                  "use percentage for random elements"
3039   },
3040   {
3041     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3042     GADGET_ID_RANDOM_QUANTITY,          GADGET_ID_RANDOM_PERCENTAGE,
3043     RADIO_NR_RANDOM_ELEMENTS,
3044     &random_placement_method,           RANDOM_USE_QUANTITY,
3045     " ", "quantity",                    "use quantity for random elements"
3046   }
3047 };
3048
3049 static struct
3050 {
3051   int x, y;
3052   int gadget_id;
3053   int gadget_id_align;
3054   boolean *value;
3055   char *text_above, *text_left, *text_right, *infotext;
3056 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
3057 {
3058   // ---------- level and editor settings -------------------------------------
3059
3060   {
3061     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3062     GADGET_ID_AUTO_COUNT_GEMS,          GADGET_ID_NONE,
3063     &level.auto_count_gems,
3064     NULL, NULL,
3065     "automatically count gems needed",  "set counter to number of gems"
3066   },
3067   {
3068     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(11),
3069     GADGET_ID_RATE_TIME_OVER_SCORE,     GADGET_ID_NONE,
3070     &level.rate_time_over_score,
3071     NULL, NULL,
3072     "rate time/steps used over score",  "sort high scores by playing time/steps"
3073   },
3074   {
3075     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3076     GADGET_ID_USE_LEVELSET_ARTWORK,     GADGET_ID_NONE,
3077     &levelset_use_levelset_artwork,
3078     NULL, NULL,
3079     "use current custom artwork",       "use custom artwork of this level set"
3080   },
3081   {
3082     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3083     GADGET_ID_COPY_LEVEL_TEMPLATE,      GADGET_ID_NONE,
3084     &levelset_copy_level_template,
3085     NULL, NULL,
3086     "copy current level template",      "copy level template of this level set"
3087   },
3088   {
3089     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
3090     GADGET_ID_RANDOM_RESTRICTED,        GADGET_ID_NONE,
3091     &random_placement_background_restricted,
3092     NULL, NULL,
3093     "restrict random placement to:",    "set random placement restriction"
3094   },
3095   {
3096     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
3097     GADGET_ID_CUSTOM_USE_TEMPLATE_3,    GADGET_ID_NONE,
3098     &setup.editor.use_template_for_new_levels,
3099     "Template for new levels and CE/GE:", NULL,
3100     "use template for new levels",      "use template for level properties"
3101   },
3102   {
3103     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
3104     GADGET_ID_CUSTOM_USE_TEMPLATE_2,    GADGET_ID_NONE,
3105     &level.use_custom_template,
3106     NULL, NULL,
3107     "use template for custom elements", "use template for custom properties"
3108   },
3109
3110   // ---------- element settings: configure (various elements) ----------------
3111
3112   {
3113     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3114     GADGET_ID_STICK_ELEMENT,            GADGET_ID_NONE,
3115     &stick_element_properties_window,
3116     NULL, NULL,
3117     "stick this screen to edit content","stick this screen to edit content"
3118   },
3119   {
3120     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3121     GADGET_ID_EM_SLIPPERY_GEMS,         GADGET_ID_NONE,
3122     &level.em_slippery_gems,
3123     NULL, NULL,
3124     "slip down from certain flat walls","use EM/DC style slipping behaviour"
3125   },
3126   {
3127     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3128     GADGET_ID_EM_EXPLODES_BY_FIRE,      GADGET_ID_NONE,
3129     &level.em_explodes_by_fire,
3130     NULL, NULL,
3131     "explodes with chain reaction",     "use R'n'D style explosion behaviour"
3132   },
3133   {
3134     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3135     GADGET_ID_USE_SPRING_BUG,           GADGET_ID_NONE,
3136     &level.use_spring_bug,
3137     NULL, NULL,
3138     "use spring pushing bug",           "use odd spring pushing behaviour"
3139   },
3140   {
3141     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3142     GADGET_ID_USE_TIME_ORB_BUG,         GADGET_ID_NONE,
3143     &level.use_time_orb_bug,
3144     NULL, NULL,
3145     "use time orb bug",                 "use odd time orb behaviour"
3146   },
3147   {
3148     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3149     GADGET_ID_USE_LIFE_BUGS,            GADGET_ID_NONE,
3150     &level.use_life_bugs,
3151     NULL, NULL,
3152     "use buggy element behaviour",      "use odd (historic) element behaviour"
3153   },
3154   {
3155     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3156     GADGET_ID_RANDOM_BALL_CONTENT,      GADGET_ID_NONE,
3157     &level.ball_random,
3158     NULL, NULL,
3159     "create single random element",     "only create one element from content"
3160   },
3161   {
3162     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3163     GADGET_ID_INITIAL_BALL_ACTIVE,      GADGET_ID_NONE,
3164     &level.ball_active_initial,
3165     NULL, NULL,
3166     "magic ball initially activated",   "activate magic ball after level start"
3167   },
3168   {
3169     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3170     GADGET_ID_GROW_INTO_DIGGABLE,       GADGET_ID_NONE,
3171     &level.grow_into_diggable,
3172     NULL, NULL,
3173     "can grow into anything diggable",  "grow into more than just sand"
3174   },
3175   {
3176     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3177     GADGET_ID_SB_FIELDS_NEEDED,         GADGET_ID_NONE,
3178     &level.sb_fields_needed,
3179     NULL, NULL,
3180     "all fields need to be filled",     "require all SB fields to be solved"
3181   },
3182   {
3183     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3184     GADGET_ID_SB_OBJECTS_NEEDED,        GADGET_ID_NONE,
3185     &level.sb_objects_needed,
3186     NULL, NULL,
3187     "all objects need to be placed",    "require all SB objects to be solved"
3188   },
3189   {
3190     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3191     GADGET_ID_AUTO_EXIT_SOKOBAN,        GADGET_ID_NONE,
3192     &level.auto_exit_sokoban,
3193     NULL, NULL,
3194     "exit level if all tasks solved",   "automatically finish Sokoban levels"
3195   },
3196   {
3197     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3198     GADGET_ID_SOLVED_BY_ONE_PLAYER,     GADGET_ID_NONE,
3199     &level.solved_by_one_player,
3200     NULL, NULL,
3201     "only one player must enter exit",  "level solved by first player in exit"
3202   },
3203   {
3204     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3205     GADGET_ID_FINISH_DIG_COLLECT,       GADGET_ID_NONE,
3206     &level.finish_dig_collect,
3207     NULL, NULL,
3208     "CE action on finished dig/collect", "only finished dig/collect triggers CE"
3209   },
3210   {
3211     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3212     GADGET_ID_KEEP_WALKABLE_CE,         GADGET_ID_NONE,
3213     &level.keep_walkable_ce,
3214     NULL, NULL,
3215     "keep walkable CE changed to player", "keep CE changing to player if walkable"
3216   },
3217   {
3218     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3219     GADGET_ID_CONTINUOUS_SNAPPING,      GADGET_ID_NONE,
3220     &level.continuous_snapping,
3221     NULL, NULL,
3222     "continuous snapping",              "use snapping without releasing key"
3223   },
3224   {
3225     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3226     GADGET_ID_BLOCK_SNAP_FIELD,         GADGET_ID_NONE,
3227     &level.block_snap_field,
3228     NULL, NULL,
3229     "block snapped field when snapping", "use snapping delay to show animation"
3230   },
3231   {
3232     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3233     GADGET_ID_BLOCK_LAST_FIELD,         GADGET_ID_NONE,
3234     &level.block_last_field,
3235     NULL, NULL,
3236     "block last field when moving",     "player blocks last field when moving"
3237   },
3238   {
3239     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3240     GADGET_ID_SP_BLOCK_LAST_FIELD,      GADGET_ID_NONE,
3241     &level.sp_block_last_field,
3242     NULL, NULL,
3243     "block last field when moving",     "player blocks last field when moving"
3244   },
3245   {
3246     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3247     GADGET_ID_INSTANT_RELOCATION,       GADGET_ID_NONE,
3248     &level.instant_relocation,
3249     NULL, NULL,
3250     "no scrolling when relocating",     "player gets relocated without delay"
3251   },
3252   {
3253     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3254     GADGET_ID_SHIFTED_RELOCATION,       GADGET_ID_NONE,
3255     &level.shifted_relocation,
3256     NULL, NULL,
3257     "no centering when relocating",     "level not centered after relocation"
3258   },
3259   {
3260     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3261     GADGET_ID_LAZY_RELOCATION,          GADGET_ID_NONE,
3262     &level.lazy_relocation,
3263     NULL, NULL,
3264     "only redraw off-screen relocation","no redraw if relocation target visible"
3265   },
3266   {
3267     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3268     GADGET_ID_USE_START_ELEMENT,        GADGET_ID_NONE,
3269     &level.use_start_element[0],
3270     NULL, NULL,
3271     "use level start element:",        "start level at this element's position"
3272   },
3273   {
3274     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3275     GADGET_ID_USE_ARTWORK_ELEMENT,      GADGET_ID_NONE,
3276     &level.use_artwork_element[0],
3277     NULL, NULL,
3278     "use artwork from element:",        "use player artwork from other element"
3279   },
3280   {
3281     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(12),
3282     GADGET_ID_USE_EXPLOSION_ELEMENT,    GADGET_ID_NONE,
3283     &level.use_explosion_element[0],
3284     NULL, NULL,
3285     "use explosion from element:",      "use explosion properties from element"
3286   },
3287   {
3288     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3289     GADGET_ID_INITIAL_GRAVITY,          GADGET_ID_NONE,
3290     &level.initial_player_gravity[0],
3291     NULL, NULL,
3292     "use initial gravity",              "set initial player gravity"
3293   },
3294   {
3295     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3296     GADGET_ID_USE_INITIAL_INVENTORY,    GADGET_ID_NONE,
3297     &level.use_initial_inventory[0],
3298     NULL, NULL,
3299     "use initial inventory:",           "use collected elements on level start"
3300   },
3301   {
3302     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3303     GADGET_ID_CAN_PASS_TO_WALKABLE,     GADGET_ID_NONE,
3304     &level.can_pass_to_walkable,
3305     NULL, NULL,
3306     "can pass to walkable element",     "player can pass to empty or walkable"
3307   },
3308   {
3309     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3310     GADGET_ID_CAN_FALL_INTO_ACID,       GADGET_ID_NONE,
3311     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3312     NULL, NULL,
3313     "can fall into acid (with gravity)","player can fall into acid pool"
3314   },
3315   {
3316     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3317     GADGET_ID_CAN_MOVE_INTO_ACID,       GADGET_ID_NONE,
3318     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3319     NULL, NULL,
3320     "can move into acid",               "element can move into acid pool"
3321   },
3322   {
3323     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3324     GADGET_ID_DONT_COLLIDE_WITH,        GADGET_ID_NONE,
3325     &custom_element_properties[EP_DONT_COLLIDE_WITH],
3326     NULL, NULL,
3327     "deadly when colliding with",       "element is deadly when hitting player"
3328   },
3329   {
3330     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3331     GADGET_ID_ENVELOPE_AUTOWRAP,        GADGET_ID_NONE,
3332     &level.envelope[0].autowrap,
3333     NULL, NULL,
3334     "auto-wrap",                        "automatically wrap envelope text"
3335   },
3336   {
3337     -1,                                 ED_ELEMENT_SETTINGS_YPOS(1),
3338     GADGET_ID_ENVELOPE_CENTERED,        GADGET_ID_ENVELOPE_AUTOWRAP,
3339     &level.envelope[0].centered,
3340     NULL, " ",
3341     "centered",                         "automatically center envelope text"
3342   },
3343   {
3344     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3345     GADGET_ID_MM_LASER_RED,             GADGET_ID_NONE,
3346     &level.mm_laser_red,
3347     "choose color components for laser:", NULL,
3348     "red",                              "use red color components in laser"
3349   },
3350   {
3351     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3352     GADGET_ID_MM_LASER_GREEN,           GADGET_ID_NONE,
3353     &level.mm_laser_green,
3354     NULL, NULL,
3355     "green",                            "use green color components in laser"
3356   },
3357   {
3358     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3359     GADGET_ID_MM_LASER_BLUE,            GADGET_ID_NONE,
3360     &level.mm_laser_blue,
3361     NULL, NULL,
3362     "blue",                             "use blue color components in laser"
3363   },
3364   {
3365     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3366     GADGET_ID_DF_LASER_RED,             GADGET_ID_NONE,
3367     &level.df_laser_red,
3368     "choose color components for laser:", NULL,
3369     "red",                              "use red color components in laser"
3370   },
3371   {
3372     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3373     GADGET_ID_DF_LASER_GREEN,           GADGET_ID_NONE,
3374     &level.df_laser_green,
3375     NULL, NULL,
3376     "green",                            "use green color components in laser"
3377   },
3378   {
3379     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3380     GADGET_ID_DF_LASER_BLUE,            GADGET_ID_NONE,
3381     &level.df_laser_blue,
3382     NULL, NULL,
3383     "blue",                             "use blue color components in laser"
3384   },
3385   {
3386     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3387     GADGET_ID_ROTATE_MM_BALL_CONTENT,   GADGET_ID_NONE,
3388     &level.rotate_mm_ball_content,
3389     NULL, NULL,
3390     "randomly rotate created content",  "randomly rotate newly created content"
3391   },
3392   {
3393     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3394     GADGET_ID_EXPLODE_MM_BALL,          GADGET_ID_NONE,
3395     &level.explode_mm_ball,
3396     NULL, NULL,
3397     "explode ball instead of melting",  "use explosion to release ball content"
3398   },
3399
3400   // ---------- element settings: configure 1 (custom elements) ---------------
3401
3402   {
3403     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3404     GADGET_ID_CUSTOM_USE_GRAPHIC,       GADGET_ID_NONE,
3405     &custom_element.use_gfx_element,
3406     NULL, NULL,
3407     "use graphic of element:",          "use existing element graphic"
3408   },
3409   {
3410     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3411     GADGET_ID_CUSTOM_USE_TEMPLATE_1,    GADGET_ID_NONE,
3412     &level.use_custom_template,
3413     NULL, NULL,
3414     "use template",                     "use template for custom properties"
3415   },
3416   {
3417     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3418     GADGET_ID_CUSTOM_ACCESSIBLE,        GADGET_ID_NONE,
3419     &custom_element_properties[EP_ACCESSIBLE],
3420     NULL, NULL,
3421     NULL,                               "player can walk to or pass this field"
3422   },
3423   {
3424     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3425     GADGET_ID_CUSTOM_GRAV_REACHABLE,    GADGET_ID_NONE,
3426     &custom_element_properties[EP_GRAVITY_REACHABLE],
3427     NULL, NULL,
3428     "reachable despite gravity",        "player can walk/dig despite gravity"
3429   },
3430   {
3431     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3432     GADGET_ID_CUSTOM_USE_LAST_VALUE,    GADGET_ID_NONE,
3433     &custom_element.use_last_ce_value,
3434     NULL, NULL,
3435     "use last CE value after change",   "use last CE value after change"
3436   },
3437   {
3438     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3439     GADGET_ID_CUSTOM_WALK_TO_OBJECT,    GADGET_ID_NONE,
3440     &custom_element_properties[EP_WALK_TO_OBJECT],
3441     NULL, NULL,
3442     NULL,                               "player can dig/collect/push element"
3443   },
3444   {
3445     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3446     GADGET_ID_CUSTOM_INDESTRUCTIBLE,    GADGET_ID_NONE,
3447     &custom_element_properties[EP_INDESTRUCTIBLE],
3448     NULL, NULL,
3449     "indestructible",                   "element is indestructible"
3450   },
3451
3452   // ---------- element settings: configure 2 (custom elements) ---------------
3453
3454   {
3455     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3456     GADGET_ID_CUSTOM_CAN_MOVE,          GADGET_ID_NONE,
3457     &custom_element_properties[EP_CAN_MOVE],
3458     NULL, NULL,
3459     NULL,                               "element can move with some pattern"
3460   },
3461   {
3462     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3463     GADGET_ID_CUSTOM_CAN_FALL,          GADGET_ID_NONE,
3464     &custom_element_properties[EP_CAN_FALL],
3465     NULL, NULL,
3466     "can fall",                         "element can fall down"
3467   },
3468   {
3469     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
3470     GADGET_ID_CUSTOM_CAN_SMASH,         GADGET_ID_CUSTOM_CAN_FALL,
3471     &custom_element_properties[EP_CAN_SMASH],
3472     NULL, " ",
3473     NULL,                               "element can smash other elements"
3474   },
3475   {
3476     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3477     GADGET_ID_CUSTOM_SLIPPERY,          GADGET_ID_NONE,
3478     &custom_element_properties[EP_SLIPPERY],
3479     NULL, NULL,
3480     NULL,                               "other elements can fall down from it"
3481   },
3482   {
3483     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3484     GADGET_ID_CUSTOM_DEADLY,            GADGET_ID_NONE,
3485     &custom_element_properties[EP_DEADLY],
3486     NULL, NULL,
3487     NULL,                               "element can kill the player"
3488   },
3489   {
3490     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3491     GADGET_ID_CUSTOM_CAN_EXPLODE,       GADGET_ID_NONE,
3492     &custom_element_properties[EP_CAN_EXPLODE],
3493     NULL, NULL,
3494     NULL,                               "element can explode"
3495   },
3496   {
3497     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(12),
3498     GADGET_ID_CUSTOM_EXPLODE_FIRE,      GADGET_ID_NONE,
3499     &custom_element_properties[EP_EXPLODES_BY_FIRE],
3500     NULL, NULL,
3501     "by fire",                          "element can explode by fire/explosion"
3502   },
3503   {
3504     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
3505     GADGET_ID_CUSTOM_EXPLODE_SMASH,     GADGET_ID_CUSTOM_EXPLODE_FIRE,
3506     &custom_element_properties[EP_EXPLODES_SMASHED],
3507     NULL, " ",
3508     "smashed",                          "element can explode when smashed"
3509   },
3510   {
3511     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
3512     GADGET_ID_CUSTOM_EXPLODE_IMPACT,    GADGET_ID_CUSTOM_EXPLODE_SMASH,
3513     &custom_element_properties[EP_EXPLODES_IMPACT],
3514     NULL, " ",
3515     "impact",                           "element can explode on impact"
3516   },
3517
3518   // ---------- element settings: advanced (custom elements) ------------------
3519
3520   {
3521     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3522     GADGET_ID_CUSTOM_CAN_CHANGE,        GADGET_ID_NONE,
3523     &custom_element_change.can_change,
3524     NULL, NULL,
3525     "element changes to:",              "change element on specified condition"
3526   },
3527   {
3528     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
3529     GADGET_ID_CHANGE_DELAY,             GADGET_ID_NONE,
3530     &custom_element_change_events[CE_DELAY],
3531     NULL, NULL,
3532     NULL,                               "element changes after delay"
3533   },
3534   {
3535     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
3536     GADGET_ID_CHANGE_BY_DIRECT_ACT,     GADGET_ID_NONE,
3537     &custom_element_change_events[CE_BY_DIRECT_ACTION],
3538     NULL, NULL,
3539     NULL,                               "element changes by direct action"
3540   },
3541   {
3542     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
3543     GADGET_ID_CHANGE_BY_OTHER_ACT,      GADGET_ID_NONE,
3544     &custom_element_change_events[CE_BY_OTHER_ACTION],
3545     NULL, NULL,
3546     NULL,                               "element changes by other element"
3547   },
3548   {
3549     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
3550     GADGET_ID_CHANGE_USE_EXPLOSION,     GADGET_ID_NONE,
3551     &custom_element_change.explode,
3552     NULL, NULL,
3553     "explode instead of change",        "element explodes instead of change"
3554   },
3555   {
3556     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
3557     GADGET_ID_CHANGE_USE_CONTENT,       GADGET_ID_NONE,
3558     &custom_element_change.use_target_content,
3559     NULL, NULL,
3560     "use extended change target:",      "element changes to more elements"
3561   },
3562   {
3563     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(11),
3564     GADGET_ID_CHANGE_ONLY_COMPLETE,     GADGET_ID_NONE,
3565     &custom_element_change.only_if_complete,
3566     NULL, NULL,
3567     "replace all or nothing",           "only replace when all can be changed"
3568   },
3569   {
3570     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(12),
3571     GADGET_ID_CHANGE_USE_RANDOM,        GADGET_ID_NONE,
3572     &custom_element_change.use_random_replace,
3573     NULL, NULL,
3574     NULL,                               "use percentage for random replace"
3575   },
3576   {
3577     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3578     GADGET_ID_CHANGE_HAS_ACTION,        GADGET_ID_NONE,
3579     &custom_element_change.has_action,
3580     NULL, NULL,
3581     NULL,                               "execute action on specified condition"
3582   },
3583 };
3584
3585 static struct
3586 {
3587   int x, y;
3588   int xoffset, yoffset;
3589   int gadget_id;
3590   int gadget_id_align;
3591   int *value;
3592   int area_xsize, area_ysize;
3593   char *text_left, *text_right, *text_above, *text_below, *infotext;
3594 } drawingarea_info[ED_NUM_DRAWING_AREAS] =
3595 {
3596   // ---------- level playfield content ---------------------------------------
3597
3598   {
3599     0,                                  0,
3600     0,                                  0,
3601     GADGET_ID_DRAWING_LEVEL,            GADGET_ID_NONE,
3602     NULL,
3603     -1, -1,     // these values are not constant, but can change at runtime
3604     NULL, NULL, NULL, NULL,             NULL
3605   },
3606
3607   // ---------- yam yam content -----------------------------------------------
3608
3609   {
3610     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3611     ED_AREA_YAMYAM_CONTENT_XOFF(0),     ED_AREA_YAMYAM_CONTENT_YOFF(0),
3612     GADGET_ID_YAMYAM_CONTENT_0,         GADGET_ID_NONE,
3613     &level.yamyam_content[0].e[0][0],   3, 3,
3614     NULL, NULL, NULL, "1",              NULL
3615   },
3616   {
3617     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3618     ED_AREA_YAMYAM_CONTENT_XOFF(1),     ED_AREA_YAMYAM_CONTENT_YOFF(1),
3619     GADGET_ID_YAMYAM_CONTENT_1,         GADGET_ID_NONE,
3620     &level.yamyam_content[1].e[0][0],   3, 3,
3621     NULL, NULL, NULL, "2",              NULL
3622   },
3623   {
3624     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3625     ED_AREA_YAMYAM_CONTENT_XOFF(2),     ED_AREA_YAMYAM_CONTENT_YOFF(2),
3626     GADGET_ID_YAMYAM_CONTENT_2,         GADGET_ID_NONE,
3627     &level.yamyam_content[2].e[0][0],   3, 3,
3628     NULL, NULL, NULL, "3",              NULL
3629   },
3630   {
3631     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3632     ED_AREA_YAMYAM_CONTENT_XOFF(3),     ED_AREA_YAMYAM_CONTENT_YOFF(3),
3633     GADGET_ID_YAMYAM_CONTENT_3,         GADGET_ID_NONE,
3634     &level.yamyam_content[3].e[0][0],   3, 3,
3635     NULL, NULL, NULL, "4",              NULL
3636   },
3637   {
3638     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3639     ED_AREA_YAMYAM_CONTENT_XOFF(4),     ED_AREA_YAMYAM_CONTENT_YOFF(4),
3640     GADGET_ID_YAMYAM_CONTENT_4,         GADGET_ID_NONE,
3641     &level.yamyam_content[4].e[0][0],   3, 3,
3642     NULL, NULL, NULL, "5",              NULL
3643   },
3644   {
3645     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3646     ED_AREA_YAMYAM_CONTENT_XOFF(5),     ED_AREA_YAMYAM_CONTENT_YOFF(5),
3647     GADGET_ID_YAMYAM_CONTENT_5,         GADGET_ID_NONE,
3648     &level.yamyam_content[5].e[0][0],   3, 3,
3649     NULL, NULL, NULL, "6",              NULL
3650   },
3651   {
3652     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3653     ED_AREA_YAMYAM_CONTENT_XOFF(6),     ED_AREA_YAMYAM_CONTENT_YOFF(6),
3654     GADGET_ID_YAMYAM_CONTENT_6,         GADGET_ID_NONE,
3655     &level.yamyam_content[6].e[0][0],   3, 3,
3656     NULL, NULL, NULL, "7",              NULL
3657   },
3658   {
3659     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3660     ED_AREA_YAMYAM_CONTENT_XOFF(7),     ED_AREA_YAMYAM_CONTENT_YOFF(7),
3661     GADGET_ID_YAMYAM_CONTENT_7,         GADGET_ID_NONE,
3662     &level.yamyam_content[7].e[0][0],   3, 3,
3663     NULL, NULL, NULL, "8",              NULL
3664   },
3665
3666   // ---------- magic ball content --------------------------------------------
3667
3668   {
3669     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3670     ED_AREA_MAGIC_BALL_CONTENT_XOFF(0), ED_AREA_MAGIC_BALL_CONTENT_YOFF(0),
3671     GADGET_ID_MAGIC_BALL_CONTENT_0,     GADGET_ID_NONE,
3672     &level.ball_content[0].e[0][0],     3, 3,
3673     NULL, NULL, NULL, "1",              NULL
3674   },
3675   {
3676     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3677     ED_AREA_MAGIC_BALL_CONTENT_XOFF(1), ED_AREA_MAGIC_BALL_CONTENT_YOFF(1),
3678     GADGET_ID_MAGIC_BALL_CONTENT_1,     GADGET_ID_NONE,
3679     &level.ball_content[1].e[0][0],     3, 3,
3680     NULL, NULL, NULL, "2",              NULL
3681   },
3682   {
3683     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3684     ED_AREA_MAGIC_BALL_CONTENT_XOFF(2), ED_AREA_MAGIC_BALL_CONTENT_YOFF(2),
3685     GADGET_ID_MAGIC_BALL_CONTENT_2,     GADGET_ID_NONE,
3686     &level.ball_content[2].e[0][0],     3, 3,
3687     NULL, NULL, NULL, "3",              NULL
3688   },
3689   {
3690     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3691     ED_AREA_MAGIC_BALL_CONTENT_XOFF(3), ED_AREA_MAGIC_BALL_CONTENT_YOFF(3),
3692     GADGET_ID_MAGIC_BALL_CONTENT_3,     GADGET_ID_NONE,
3693     &level.ball_content[3].e[0][0],     3, 3,
3694     NULL, NULL, NULL, "4",              NULL
3695   },
3696   {
3697     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3698     ED_AREA_MAGIC_BALL_CONTENT_XOFF(4), ED_AREA_MAGIC_BALL_CONTENT_YOFF(4),
3699     GADGET_ID_MAGIC_BALL_CONTENT_4,     GADGET_ID_NONE,
3700     &level.ball_content[4].e[0][0],     3, 3,
3701     NULL, NULL, NULL, "5",              NULL
3702   },
3703   {
3704     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3705     ED_AREA_MAGIC_BALL_CONTENT_XOFF(5), ED_AREA_MAGIC_BALL_CONTENT_YOFF(5),
3706     GADGET_ID_MAGIC_BALL_CONTENT_5,     GADGET_ID_NONE,
3707     &level.ball_content[5].e[0][0],     3, 3,
3708     NULL, NULL, NULL, "6",              NULL
3709   },
3710   {
3711     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3712     ED_AREA_MAGIC_BALL_CONTENT_XOFF(6), ED_AREA_MAGIC_BALL_CONTENT_YOFF(6),
3713     GADGET_ID_MAGIC_BALL_CONTENT_6,     GADGET_ID_NONE,
3714     &level.ball_content[6].e[0][0],     3, 3,
3715     NULL, NULL, NULL, "7",              NULL
3716   },
3717   {
3718     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3719     ED_AREA_MAGIC_BALL_CONTENT_XOFF(7), ED_AREA_MAGIC_BALL_CONTENT_YOFF(7),
3720     GADGET_ID_MAGIC_BALL_CONTENT_7,     GADGET_ID_NONE,
3721     &level.ball_content[7].e[0][0],     3, 3,
3722     NULL, NULL, NULL, "8",              NULL
3723   },
3724
3725   // ---------- android content -----------------------------------------------
3726
3727   {
3728     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(6),
3729     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3730     GADGET_ID_ANDROID_CONTENT,          GADGET_ID_NONE,
3731     &level.android_clone_element[0],    MAX_ANDROID_ELEMENTS, 1,
3732     NULL, NULL, "elements:", NULL,      "elements android can clone"
3733   },
3734
3735   // ---------- amoeba content ------------------------------------------------
3736
3737   {
3738     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
3739     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3740     GADGET_ID_AMOEBA_CONTENT,           GADGET_ID_NONE,
3741     &level.amoeba_content,              1, 1,
3742     "content:", NULL, NULL, NULL,       "amoeba content"
3743   },
3744
3745   // ---------- level start element -------------------------------------------
3746
3747   {
3748     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(10),
3749     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3750     GADGET_ID_START_ELEMENT,            GADGET_ID_USE_START_ELEMENT,
3751     &level.start_element[0],            1, 1,
3752     NULL, NULL, NULL, NULL,             "level start element"
3753   },
3754
3755   // ---------- player artwork element ----------------------------------------
3756
3757   {
3758     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(11),
3759     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3760     GADGET_ID_ARTWORK_ELEMENT,          GADGET_ID_USE_ARTWORK_ELEMENT,
3761     &level.artwork_element[0],          1, 1,
3762     NULL, NULL, NULL, NULL,             "element for player artwork"
3763   },
3764
3765   // ---------- player explosion element --------------------------------------
3766
3767   {
3768     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(12),
3769     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3770     GADGET_ID_EXPLOSION_ELEMENT,        GADGET_ID_USE_EXPLOSION_ELEMENT,
3771     &level.explosion_element[0],        1, 1,
3772     NULL, NULL, NULL, NULL,             "element for player explosion"
3773   },
3774
3775   // ---------- player initial inventory --------------------------------------
3776
3777   {
3778     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3779     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3780     GADGET_ID_INVENTORY_CONTENT,        GADGET_ID_USE_INITIAL_INVENTORY,
3781     &level.initial_inventory_content[0][0], MAX_INITIAL_INVENTORY_SIZE, 1,
3782     NULL, NULL, NULL, NULL,             "content for initial inventory"
3783   },
3784
3785   // ---------- gray ball content -----------------------------------------
3786
3787   {
3788     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
3789     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3790     GADGET_ID_MM_BALL_CONTENT,          GADGET_ID_NONE,
3791     &level.mm_ball_content[0],          MAX_MM_BALL_CONTENTS, 1,
3792     "content:", NULL, NULL, NULL,       "content for gray ball"
3793   },
3794
3795   // ---------- element settings: configure 1 (custom elements) ---------------
3796
3797   // ---------- custom graphic ------------------------------------------------
3798
3799   {
3800     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3801     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3802     GADGET_ID_CUSTOM_GRAPHIC,           GADGET_ID_CUSTOM_USE_GRAPHIC,
3803     &custom_element.gfx_element_initial, 1, 1,
3804     NULL, NULL, NULL, NULL,             "custom graphic element"
3805   },
3806
3807   // ---------- element settings: configure 2 (custom elements) ---------------
3808
3809   // ---------- custom content (when exploding) -------------------------------
3810
3811   {
3812     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(11),
3813     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
3814     GADGET_ID_CUSTOM_CONTENT,           GADGET_ID_NONE, // align three rows
3815     &custom_element.content.e[0][0],    3, 3,
3816     "content:", NULL, NULL, NULL,       NULL
3817   },
3818
3819   // ---------- custom enter and leave element (when moving) ------------------
3820
3821   {
3822     ED_AREA_1X1_SETTINGS_XPOS(1),       ED_AREA_1X1_SETTINGS_YPOS(3),
3823     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3824     GADGET_ID_CUSTOM_MOVE_ENTER,        GADGET_ID_NONE,
3825     &custom_element.move_enter_element, 1, 1,
3826     "can dig:", " ", NULL, NULL,        "element that can be digged/collected"
3827   },
3828   {
3829     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(3),
3830     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3831     GADGET_ID_CUSTOM_MOVE_LEAVE,        GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
3832     &custom_element.move_leave_element, 1, 1,
3833     NULL, NULL, NULL, NULL,             "element that will be left behind"
3834   },
3835
3836   // ---------- element settings: advanced (custom elements) ------------------
3837
3838   // ---------- custom change target ------------------------------------------
3839
3840   {
3841     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3842     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3843     GADGET_ID_CUSTOM_CHANGE_TARGET,     GADGET_ID_CUSTOM_CAN_CHANGE,
3844     &custom_element_change.target_element, 1, 1,
3845     NULL, "after/when:", NULL, NULL,    "new target element after change"
3846   },
3847
3848   // ---------- custom change content (extended change target) ----------------
3849
3850   {
3851     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(9),
3852     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
3853     GADGET_ID_CUSTOM_CHANGE_CONTENT,    GADGET_ID_NONE, // align three rows
3854     &custom_element_change.target_content.e[0][0], 3, 3,
3855     NULL, NULL, NULL, NULL,             "new extended elements after change"
3856   },
3857
3858   // ---------- custom change trigger (element causing change) ----------------
3859
3860   {
3861     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(5),
3862     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3863     GADGET_ID_CUSTOM_CHANGE_TRIGGER,    GADGET_ID_CHANGE_OTHER_ACTION,
3864     &custom_element_change.initial_trigger_element, 1, 1,
3865     NULL, NULL, NULL, NULL,             "other element triggering change"
3866   },
3867
3868   // ---------- custom change action (element used for action) ----------------
3869
3870   {
3871     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(13),
3872     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3873     GADGET_ID_CUSTOM_CHANGE_ACTION,     GADGET_ID_ACTION_ARG,
3874     &custom_element_change.action_element, 1, 1,
3875     NULL, NULL, NULL, NULL,             "element used as action parameter"
3876   },
3877
3878   // ---------- group element content -----------------------------------------
3879
3880   {
3881     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
3882     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3883     GADGET_ID_GROUP_CONTENT,            GADGET_ID_NONE,
3884     &group_element_info.element[0],     MAX_ELEMENTS_IN_GROUP, 1,
3885     "content:", NULL, NULL, NULL,       NULL
3886   },
3887
3888   // ---------- random background (for random painting) -----------------------
3889
3890   {
3891     -1,                                 ED_AREA_1X1_LSETTINGS_YPOS(1),
3892     0,                                  ED_AREA_1X1_LSETTINGS_YOFF,
3893     GADGET_ID_RANDOM_BACKGROUND,        GADGET_ID_RANDOM_RESTRICTED,
3894     &random_placement_background_element, 1, 1,
3895     NULL, NULL, NULL, NULL,             "random placement background"
3896   },
3897 };
3898
3899
3900 // ----------------------------------------------------------------------------
3901 // some internally used variables
3902 // ----------------------------------------------------------------------------
3903
3904 // maximal size of level editor drawing area
3905 static int MAX_ED_FIELDX, MAX_ED_FIELDY;
3906
3907 // actual size of level editor drawing area
3908 static int ed_fieldx, ed_fieldy;
3909
3910 // actual position of level editor drawing area in level playfield
3911 static int level_xpos = -1, level_ypos = -1;
3912
3913 // actual tile size used to display playfield drawing area
3914 static int ed_tilesize = DEFAULT_EDITOR_TILESIZE;
3915 static int ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
3916
3917 #define IN_ED_FIELD(x, y)       IN_FIELD(x, y, ed_fieldx, ed_fieldy)
3918
3919 // drawing elements on the three mouse buttons
3920 static int new_element1 = EL_WALL;
3921 static int new_element2 = EL_EMPTY;
3922 static int new_element3 = EL_SAND;
3923
3924 #define IS_VALID_BUTTON(button) (button >= 1 && button <= 3)
3925 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
3926                                 (button) == 2 ? new_element2 : \
3927                                 (button) == 3 ? new_element3 : EL_EMPTY)
3928
3929 #define BUTTON_TILE_SIZE(x)     ((x) >= TILESIZE ? TILESIZE : MINI_TILESIZE)
3930
3931 static int use_permanent_palette = TRUE;
3932
3933 #define PX              (use_permanent_palette ? DX : SX)
3934 #define PY              (use_permanent_palette ? DY : SY)
3935 #define PXSIZE          (use_permanent_palette ? DXSIZE : SXSIZE)
3936 #define PYSIZE          (use_permanent_palette ? DYSIZE : SYSIZE)
3937
3938 // forward declaration for internal use
3939 static void CopyBrushToCursor(int, int);
3940 static void DeleteBrushFromCursor(void);
3941 static void ModifyEditorCounterValue(int, int);
3942 static void ModifyEditorCounterLimits(int, int, int);
3943 static void ModifyEditorSelectboxValue(int, int);
3944 static void ModifyEditorSelectboxOptions(int, struct ValueTextInfo *);
3945 static void ModifyEditorDrawingArea(int, int, int);
3946 static void ModifyEditorElementList(void);
3947 static void AdjustElementListScrollbar(void);
3948 static void RedrawDrawingElements(void);
3949 static void DrawDrawingWindowExt(boolean);
3950 static void DrawDrawingWindow(void);
3951 static void DrawLevelConfigWindow(void);
3952 static void DrawPropertiesWindow(void);
3953 static void DrawPaletteWindow(void);
3954 static void UpdateCustomElementGraphicGadgets(void);
3955 static boolean checkPropertiesConfig(int);
3956 static void SetAutomaticNumberOfGemsNeeded(void);
3957 static void ClearEditorGadgetInfoText(void);
3958 static void CopyLevelToUndoBuffer(int);
3959 static void HandleDrawingAreas(struct GadgetInfo *);
3960 static void HandleCounterButtons(struct GadgetInfo *);
3961 static void HandleTextInputGadgets(struct GadgetInfo *);
3962 static void HandleTextAreaGadgets(struct GadgetInfo *);
3963 static void HandleSelectboxGadgets(struct GadgetInfo *);
3964 static void HandleTextbuttonGadgets(struct GadgetInfo *);
3965 static void HandleGraphicbuttonGadgets(struct GadgetInfo *);
3966 static void HandleRadiobuttons(struct GadgetInfo *);
3967 static void HandleCheckbuttons(struct GadgetInfo *);
3968 static void HandleControlButtons(struct GadgetInfo *);
3969 static void HandleDrawingAreaInfo(struct GadgetInfo *);
3970 static void PrintEditorGadgetInfoText(struct GadgetInfo *);
3971 static boolean AskToCopyAndModifyLevelTemplate(void);
3972 static boolean getDrawModeHiRes(void);
3973 static int getTabulatorBarWidth(void);
3974 static int getTabulatorBarHeight(void);
3975 static Pixel getTabulatorBarColor(void);
3976 static int numHiresTiles(int);
3977
3978 static int num_editor_gadgets = 0;      // dynamically determined
3979
3980 static struct GadgetInfo **level_editor_gadget = NULL;
3981 static int *right_gadget_border = NULL;
3982
3983 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
3984 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
3985 static boolean draw_with_brush = FALSE;
3986 static int properties_element = 0;
3987
3988 static short TileBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3989 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3990 static short IntelliDrawBuffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3991 static int undo_buffer_position = 0;
3992 static int undo_buffer_steps = 0;
3993 static int redo_buffer_steps = 0;
3994
3995 static int edit_mode;
3996 static int edit_mode_levelconfig;
3997 static int edit_mode_properties;
3998
3999 static int element_shift = 0;
4000
4001 static int editor_el_players[] =
4002 {
4003   EL_PLAYER_1,
4004   EL_PLAYER_2,
4005   EL_PLAYER_3,
4006   EL_PLAYER_4
4007 };
4008 static int *editor_el_players_ptr = editor_el_players;
4009 static int num_editor_el_players = ARRAY_SIZE(editor_el_players);
4010
4011 static int editor_hl_boulderdash[] =
4012 {
4013   EL_INTERNAL_CASCADE_BD_ACTIVE,
4014   EL_CHAR('B'),
4015   EL_CHAR('D'),
4016   EL_EMPTY,
4017 };
4018
4019 static int editor_el_boulderdash[] =
4020 {
4021   EL_EMPTY,
4022   EL_SAND,
4023   EL_BD_ROCK,
4024   EL_BD_DIAMOND,
4025
4026   EL_STEELWALL,
4027   EL_BD_WALL,
4028   EL_BD_EXPANDABLE_WALL,
4029   EL_BD_MAGIC_WALL,
4030
4031   EL_BD_AMOEBA,
4032   EL_BD_BUTTERFLY_UP,
4033   EL_BD_FIREFLY_UP,
4034   EL_EXIT_CLOSED,
4035
4036   EL_BD_BUTTERFLY_LEFT,
4037   EL_BD_FIREFLY_LEFT,
4038   EL_BD_BUTTERFLY_RIGHT,
4039   EL_BD_FIREFLY_RIGHT,
4040
4041   EL_EMPTY,
4042   EL_BD_BUTTERFLY_DOWN,
4043   EL_BD_FIREFLY_DOWN,
4044   EL_EXIT_OPEN,
4045 };
4046 static int *editor_hl_boulderdash_ptr = editor_hl_boulderdash;
4047 static int *editor_el_boulderdash_ptr = editor_el_boulderdash;
4048 static int num_editor_hl_boulderdash = ARRAY_SIZE(editor_hl_boulderdash);
4049 static int num_editor_el_boulderdash = ARRAY_SIZE(editor_el_boulderdash);
4050
4051 static int editor_hl_emerald_mine[] =
4052 {
4053   EL_INTERNAL_CASCADE_EM_ACTIVE,
4054   EL_CHAR('E'),
4055   EL_CHAR('M'),
4056   EL_EMPTY,
4057 };
4058
4059 static int editor_el_emerald_mine[] =
4060 {
4061   EL_SAND,
4062   EL_ROCK,
4063   EL_QUICKSAND_EMPTY,
4064   EL_QUICKSAND_FULL,
4065
4066   EL_STEELWALL,
4067   EL_WALL,
4068   EL_WALL_SLIPPERY,
4069   EL_MAGIC_WALL,
4070
4071   EL_EMERALD,
4072   EL_DIAMOND,
4073   EL_NUT,
4074   EL_BOMB,
4075
4076   EL_EM_DYNAMITE,
4077   EL_EM_DYNAMITE_ACTIVE,
4078   EL_EM_EXIT_CLOSED,
4079   EL_EM_EXIT_OPEN,
4080
4081   EL_YAMYAM_UP,
4082   EL_BUG_UP,
4083   EL_SPACESHIP_UP,
4084   EL_ROBOT,
4085
4086   EL_BUG_LEFT,
4087   EL_SPACESHIP_LEFT,
4088   EL_BUG_RIGHT,
4089   EL_SPACESHIP_RIGHT,
4090
4091   EL_ROBOT_WHEEL,
4092   EL_BUG_DOWN,
4093   EL_SPACESHIP_DOWN,
4094   EL_INVISIBLE_WALL,
4095
4096   EL_ACID_POOL_TOPLEFT,
4097   EL_ACID,
4098   EL_ACID_POOL_TOPRIGHT,
4099   EL_AMOEBA_DROP,
4100
4101   EL_ACID_POOL_BOTTOMLEFT,
4102   EL_ACID_POOL_BOTTOM,
4103   EL_ACID_POOL_BOTTOMRIGHT,
4104   EL_AMOEBA_WET,
4105
4106   EL_EM_KEY_1,
4107   EL_EM_KEY_2,
4108   EL_EM_KEY_3,
4109   EL_EM_KEY_4,
4110
4111   EL_EM_GATE_1,
4112   EL_EM_GATE_2,
4113   EL_EM_GATE_3,
4114   EL_EM_GATE_4,
4115
4116   EL_EM_GATE_1_GRAY,
4117   EL_EM_GATE_2_GRAY,
4118   EL_EM_GATE_3_GRAY,
4119   EL_EM_GATE_4_GRAY,
4120 };
4121 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
4122 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
4123 static int num_editor_hl_emerald_mine = ARRAY_SIZE(editor_hl_emerald_mine);
4124 static int num_editor_el_emerald_mine = ARRAY_SIZE(editor_el_emerald_mine);
4125
4126 static int editor_hl_emerald_mine_club[] =
4127 {
4128   EL_INTERNAL_CASCADE_EMC_ACTIVE,
4129   EL_CHAR('E'),
4130   EL_CHAR('M'),
4131   EL_CHAR('C'),
4132 };
4133
4134 static int editor_el_emerald_mine_club[] =
4135 {
4136   EL_EMC_KEY_5,
4137   EL_EMC_KEY_6,
4138   EL_EMC_KEY_7,
4139   EL_EMC_KEY_8,
4140
4141   EL_EMC_GATE_5,
4142   EL_EMC_GATE_6,
4143   EL_EMC_GATE_7,
4144   EL_EMC_GATE_8,
4145
4146   EL_EMC_GATE_5_GRAY,
4147   EL_EMC_GATE_6_GRAY,
4148   EL_EMC_GATE_7_GRAY,
4149   EL_EMC_GATE_8_GRAY,
4150
4151   EL_EMC_STEELWALL_1,
4152   EL_EMC_STEELWALL_2,
4153   EL_EMC_STEELWALL_3,
4154   EL_EMC_STEELWALL_4,
4155
4156   EL_EMC_WALL_13,
4157   EL_EMC_WALL_14,
4158   EL_EMC_WALL_15,
4159   EL_EMC_WALL_16,
4160
4161   EL_EMC_WALL_SLIPPERY_1,
4162   EL_EMC_WALL_SLIPPERY_2,
4163   EL_EMC_WALL_SLIPPERY_3,
4164   EL_EMC_WALL_SLIPPERY_4,
4165
4166   EL_EMC_WALL_1,
4167   EL_EMC_WALL_2,
4168   EL_EMC_WALL_3,
4169   EL_EMC_WALL_4,
4170
4171   EL_EMC_WALL_5,
4172   EL_EMC_WALL_6,
4173   EL_EMC_WALL_7,
4174   EL_EMC_WALL_8,
4175
4176   EL_EMC_WALL_9,
4177   EL_EMC_WALL_10,
4178   EL_EMC_WALL_11,
4179   EL_EMC_WALL_12,
4180
4181   EL_EMC_GRASS,
4182   EL_EMC_FAKE_GRASS,
4183   EL_EMC_PLANT,
4184   EL_EMC_DRIPPER,
4185
4186   EL_EMC_MAGIC_BALL,
4187   EL_EMC_MAGIC_BALL_SWITCH,
4188   EL_EMC_LENSES,
4189   EL_EMC_MAGNIFIER,
4190
4191   EL_SPRING_LEFT,
4192   EL_SPRING,
4193   EL_SPRING_RIGHT,
4194   EL_EMC_SPRING_BUMPER,
4195
4196   EL_BALLOON,
4197   EL_YAMYAM_UP,
4198   EL_BALLOON_SWITCH_UP,
4199   EL_BALLOON_SWITCH_ANY,
4200
4201   EL_YAMYAM_LEFT,
4202   EL_BALLOON_SWITCH_LEFT,
4203   EL_YAMYAM_RIGHT,
4204   EL_BALLOON_SWITCH_RIGHT,
4205
4206   EL_EMC_ANDROID,
4207   EL_YAMYAM_DOWN,
4208   EL_BALLOON_SWITCH_DOWN,
4209   EL_BALLOON_SWITCH_NONE,
4210 };
4211 static int *editor_hl_emerald_mine_club_ptr = editor_hl_emerald_mine_club;
4212 static int *editor_el_emerald_mine_club_ptr = editor_el_emerald_mine_club;
4213 static int num_editor_hl_emerald_mine_club = ARRAY_SIZE(editor_hl_emerald_mine_club);
4214 static int num_editor_el_emerald_mine_club = ARRAY_SIZE(editor_el_emerald_mine_club);
4215
4216 static int editor_hl_rnd[] =
4217 {
4218   EL_INTERNAL_CASCADE_RND_ACTIVE,
4219   EL_CHAR('R'),
4220   EL_CHAR('N'),
4221   EL_CHAR('D'),
4222 };
4223
4224 static int editor_el_rnd[] =
4225 {
4226   EL_DYNAMITE,                  // RND
4227   EL_DYNAMITE_ACTIVE,           // RND
4228   EL_EMPTY,
4229   EL_EMPTY,
4230
4231   EL_KEY_1,
4232   EL_KEY_2,
4233   EL_KEY_3,
4234   EL_KEY_4,
4235
4236   EL_GATE_1,
4237   EL_GATE_2,
4238   EL_GATE_3,
4239   EL_GATE_4,
4240
4241   EL_GATE_1_GRAY,
4242   EL_GATE_2_GRAY,
4243   EL_GATE_3_GRAY,
4244   EL_GATE_4_GRAY,
4245
4246   EL_ARROW_LEFT,
4247   EL_ARROW_RIGHT,
4248   EL_ARROW_UP,
4249   EL_ARROW_DOWN,
4250
4251   EL_AMOEBA_DEAD,
4252   EL_AMOEBA_DRY,
4253   EL_AMOEBA_FULL,
4254   EL_GAME_OF_LIFE,
4255
4256   EL_EMERALD_YELLOW,
4257   EL_EMERALD_RED,
4258   EL_EMERALD_PURPLE,
4259   EL_BIOMAZE,
4260
4261   EL_WALL_EMERALD_YELLOW,
4262   EL_WALL_EMERALD_RED,
4263   EL_WALL_EMERALD_PURPLE,
4264   EL_WALL_BD_DIAMOND,
4265
4266   EL_SPEED_PILL,
4267   EL_PACMAN_UP,
4268   EL_TIME_ORB_FULL,
4269   EL_TIME_ORB_EMPTY,
4270
4271   EL_PACMAN_LEFT,
4272   EL_DARK_YAMYAM,
4273   EL_PACMAN_RIGHT,
4274   EL_YAMYAM,                    // RND
4275
4276   EL_BLACK_ORB,
4277   EL_PACMAN_DOWN,
4278   EL_LAMP,
4279   EL_LAMP_ACTIVE,
4280
4281   EL_DYNABOMB_INCREASE_NUMBER,
4282   EL_DYNABOMB_INCREASE_SIZE,
4283   EL_DYNABOMB_INCREASE_POWER,
4284   EL_STONEBLOCK,
4285
4286   EL_MOLE,
4287   EL_PENGUIN,
4288   EL_PIG,
4289   EL_DRAGON,
4290
4291   EL_BUG,
4292   EL_MOLE_UP,
4293   EL_BD_BUTTERFLY,
4294   EL_BD_FIREFLY,
4295
4296   EL_MOLE_LEFT,
4297   EL_SATELLITE,
4298   EL_MOLE_RIGHT,
4299   EL_PACMAN,
4300
4301   EL_SPACESHIP,
4302   EL_MOLE_DOWN,
4303   EL_INVISIBLE_STEELWALL,
4304   EL_INVISIBLE_WALL,
4305
4306   EL_EXPANDABLE_WALL,
4307   EL_EXPANDABLE_WALL_HORIZONTAL,
4308   EL_EXPANDABLE_WALL_VERTICAL,
4309   EL_EXPANDABLE_WALL_ANY,
4310 };
4311 static int *editor_hl_rnd_ptr = editor_hl_rnd;
4312 static int *editor_el_rnd_ptr = editor_el_rnd;
4313 static int num_editor_hl_rnd = ARRAY_SIZE(editor_hl_rnd);
4314 static int num_editor_el_rnd = ARRAY_SIZE(editor_el_rnd);
4315
4316 static int editor_hl_sokoban[] =
4317 {
4318   EL_INTERNAL_CASCADE_SB_ACTIVE,
4319   EL_CHAR('S'),
4320   EL_CHAR('B'),
4321   EL_EMPTY,
4322 };
4323
4324 static int editor_el_sokoban[] =
4325 {
4326   EL_SOKOBAN_OBJECT,
4327   EL_SOKOBAN_FIELD_EMPTY,
4328   EL_SOKOBAN_FIELD_FULL,
4329   EL_SOKOBAN_FIELD_PLAYER,
4330 };
4331 static int *editor_hl_sokoban_ptr = editor_hl_sokoban;
4332 static int *editor_el_sokoban_ptr = editor_el_sokoban;
4333 static int num_editor_hl_sokoban = ARRAY_SIZE(editor_hl_sokoban);
4334 static int num_editor_el_sokoban = ARRAY_SIZE(editor_el_sokoban);
4335
4336 static int editor_hl_supaplex[] =
4337 {
4338   EL_INTERNAL_CASCADE_SP_ACTIVE,
4339   EL_CHAR('S'),
4340   EL_CHAR('P'),
4341   EL_EMPTY,
4342 };
4343
4344 static int editor_el_supaplex[] =
4345 {
4346   EL_SP_MURPHY,
4347   EL_EMPTY,
4348   EL_SP_BASE,
4349   EL_SP_BUGGY_BASE,
4350
4351   EL_SP_INFOTRON,
4352   EL_SP_ZONK,
4353   EL_SP_SNIKSNAK,
4354   EL_SP_ELECTRON,
4355
4356   EL_SP_DISK_RED,
4357   EL_SP_DISK_ORANGE,
4358   EL_SP_DISK_YELLOW,
4359   EL_SP_TERMINAL,
4360
4361   EL_SP_EXIT_CLOSED,
4362   EL_SP_PORT_HORIZONTAL,
4363   EL_SP_PORT_VERTICAL,
4364   EL_SP_PORT_ANY,
4365
4366   EL_SP_PORT_LEFT,
4367   EL_SP_PORT_RIGHT,
4368   EL_SP_PORT_UP,
4369   EL_SP_PORT_DOWN,
4370
4371   EL_SP_GRAVITY_PORT_LEFT,
4372   EL_SP_GRAVITY_PORT_RIGHT,
4373   EL_SP_GRAVITY_PORT_UP,
4374   EL_SP_GRAVITY_PORT_DOWN,
4375
4376   EL_SP_GRAVITY_ON_PORT_LEFT,
4377   EL_SP_GRAVITY_ON_PORT_RIGHT,
4378   EL_SP_GRAVITY_ON_PORT_UP,
4379   EL_SP_GRAVITY_ON_PORT_DOWN,
4380
4381   EL_SP_GRAVITY_OFF_PORT_LEFT,
4382   EL_SP_GRAVITY_OFF_PORT_RIGHT,
4383   EL_SP_GRAVITY_OFF_PORT_UP,
4384   EL_SP_GRAVITY_OFF_PORT_DOWN,
4385
4386   EL_SP_HARDWARE_GRAY,
4387   EL_SP_HARDWARE_GREEN,
4388   EL_SP_HARDWARE_BLUE,
4389   EL_SP_HARDWARE_RED,
4390
4391   EL_SP_HARDWARE_BASE_1,
4392   EL_SP_HARDWARE_BASE_2,
4393   EL_SP_HARDWARE_BASE_3,
4394   EL_SP_HARDWARE_BASE_4,
4395
4396   EL_SP_HARDWARE_BASE_5,
4397   EL_SP_HARDWARE_BASE_6,
4398   EL_SP_HARDWARE_YELLOW,
4399   EL_SP_CHIP_TOP,
4400
4401   EL_SP_CHIP_SINGLE,
4402   EL_SP_CHIP_LEFT,
4403   EL_SP_CHIP_RIGHT,
4404   EL_SP_CHIP_BOTTOM,
4405 };
4406 static int *editor_hl_supaplex_ptr = editor_hl_supaplex;
4407 static int *editor_el_supaplex_ptr = editor_el_supaplex;
4408 static int num_editor_hl_supaplex = ARRAY_SIZE(editor_hl_supaplex);
4409 static int num_editor_el_supaplex = ARRAY_SIZE(editor_el_supaplex);
4410
4411 static int editor_hl_diamond_caves[] =
4412 {
4413   EL_INTERNAL_CASCADE_DC_ACTIVE,
4414   EL_CHAR('D'),
4415   EL_CHAR('C'),
4416   EL_CHAR('2'),
4417 };
4418
4419 static int editor_el_diamond_caves[] =
4420 {
4421   EL_EM_STEEL_EXIT_CLOSED,      // DC2
4422   EL_EM_STEEL_EXIT_OPEN,        // DC2
4423   EL_WALL_EMERALD,              // DC2
4424   EL_WALL_DIAMOND,              // DC2
4425
4426   EL_PEARL,
4427   EL_CRYSTAL,
4428   EL_WALL_PEARL,
4429   EL_WALL_CRYSTAL,
4430
4431   EL_CONVEYOR_BELT_1_LEFT,
4432   EL_CONVEYOR_BELT_1_MIDDLE,
4433   EL_CONVEYOR_BELT_1_RIGHT,
4434   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
4435
4436   EL_CONVEYOR_BELT_2_LEFT,
4437   EL_CONVEYOR_BELT_2_MIDDLE,
4438   EL_CONVEYOR_BELT_2_RIGHT,
4439   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
4440
4441   EL_CONVEYOR_BELT_3_LEFT,
4442   EL_CONVEYOR_BELT_3_MIDDLE,
4443   EL_CONVEYOR_BELT_3_RIGHT,
4444   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
4445
4446   EL_CONVEYOR_BELT_4_LEFT,
4447   EL_CONVEYOR_BELT_4_MIDDLE,
4448   EL_CONVEYOR_BELT_4_RIGHT,
4449   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
4450
4451   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
4452   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
4453   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
4454   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
4455
4456   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
4457   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
4458   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
4459   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
4460
4461   EL_TIMEGATE_CLOSED,
4462   EL_TIMEGATE_OPEN,
4463   EL_TIMEGATE_SWITCH,
4464   EL_DC_TIMEGATE_SWITCH,
4465
4466   EL_SWITCHGATE_CLOSED,
4467   EL_SWITCHGATE_OPEN,
4468   EL_SWITCHGATE_SWITCH_UP,
4469   EL_SWITCHGATE_SWITCH_DOWN,
4470
4471   EL_LIGHT_SWITCH,
4472   EL_LIGHT_SWITCH_ACTIVE,
4473   EL_DC_SWITCHGATE_SWITCH_UP,
4474   EL_DC_SWITCHGATE_SWITCH_DOWN,
4475
4476   EL_STEEL_EXIT_CLOSED,
4477   EL_STEEL_EXIT_OPEN,
4478   EL_STEELWALL_SLIPPERY,
4479   EL_INVISIBLE_SAND,
4480
4481   EL_QUICKSAND_FAST_EMPTY,
4482   EL_QUICKSAND_FAST_FULL,
4483   EL_LANDMINE,
4484   EL_DC_LANDMINE,
4485
4486   EL_SHIELD_NORMAL,
4487   EL_SHIELD_DEADLY,
4488   EL_EXTRA_TIME,
4489   EL_DC_MAGIC_WALL,
4490
4491   EL_ENVELOPE_1,
4492   EL_ENVELOPE_2,
4493   EL_ENVELOPE_3,
4494   EL_ENVELOPE_4,
4495
4496   EL_SIGN_RADIOACTIVITY,
4497   EL_SIGN_WHEELCHAIR,
4498   EL_SIGN_PARKING,
4499   EL_SIGN_NO_ENTRY,
4500
4501   EL_SIGN_GIVE_WAY,
4502   EL_SIGN_ENTRY_FORBIDDEN,
4503   EL_SIGN_EMERGENCY_EXIT,
4504   EL_SIGN_YIN_YANG,
4505
4506 #if 0
4507   EL_SIGN_SPERMS,
4508   EL_SIGN_BULLET,
4509   EL_SIGN_HEART,
4510   EL_SIGN_CROSS,
4511
4512   EL_SIGN_FRANKIE,
4513   EL_EMPTY,
4514   EL_EMPTY,
4515   EL_EMPTY,
4516
4517   EL_SPERMS,
4518   EL_BULLET,
4519   EL_HEART,
4520   EL_CROSS,
4521
4522   EL_FRANKIE,
4523   EL_EMPTY,
4524   EL_EMPTY,
4525   EL_EMPTY,
4526 #endif
4527
4528   EL_DC_STEELWALL_2_SINGLE,
4529   EL_DC_STEELWALL_2_TOP,
4530   EL_SIGN_EXCLAMATION,
4531   EL_SIGN_STOP,
4532
4533   EL_DC_STEELWALL_2_LEFT,
4534   EL_DC_STEELWALL_2_MIDDLE,
4535   EL_DC_STEELWALL_2_HORIZONTAL,
4536   EL_DC_STEELWALL_2_RIGHT,
4537
4538   EL_DC_STEELWALL_1_TOPLEFT,
4539   EL_DC_STEELWALL_2_VERTICAL,
4540   EL_DC_STEELWALL_1_TOPRIGHT,
4541   EL_DC_GATE_WHITE,
4542
4543   EL_DC_STEELWALL_1_VERTICAL,
4544   EL_DC_STEELWALL_2_BOTTOM,
4545   EL_DC_KEY_WHITE,
4546   EL_DC_GATE_WHITE_GRAY,
4547
4548   EL_DC_STEELWALL_1_BOTTOMLEFT,
4549   EL_DC_STEELWALL_1_HORIZONTAL,
4550   EL_DC_STEELWALL_1_BOTTOMRIGHT,
4551   EL_DC_GATE_FAKE_GRAY,
4552
4553   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
4554   EL_DC_STEELWALL_1_BOTTOM,
4555   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
4556   EL_EXPANDABLE_STEELWALL_HORIZONTAL,
4557
4558   EL_DC_STEELWALL_1_RIGHT,
4559   EL_EMPTY,
4560   EL_DC_STEELWALL_1_LEFT,
4561   EL_EXPANDABLE_STEELWALL_VERTICAL,
4562
4563   EL_DC_STEELWALL_1_TOPRIGHT_2,
4564   EL_DC_STEELWALL_1_TOP,
4565   EL_DC_STEELWALL_1_TOPLEFT_2,
4566   EL_EXPANDABLE_STEELWALL_ANY,
4567 };
4568 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
4569 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
4570 static int num_editor_hl_diamond_caves = ARRAY_SIZE(editor_hl_diamond_caves);
4571 static int num_editor_el_diamond_caves = ARRAY_SIZE(editor_el_diamond_caves);
4572
4573 static int editor_hl_dx_boulderdash[] =
4574 {
4575   EL_INTERNAL_CASCADE_DX_ACTIVE,
4576   EL_CHAR('D'),
4577   EL_CHAR('X'),
4578   EL_EMPTY,
4579 };
4580
4581 static int editor_el_dx_boulderdash[] =
4582 {
4583   EL_EMPTY,
4584   EL_TUBE_RIGHT_DOWN,
4585   EL_TUBE_HORIZONTAL_DOWN,
4586   EL_TUBE_LEFT_DOWN,
4587
4588   EL_TUBE_HORIZONTAL,
4589   EL_TUBE_VERTICAL_RIGHT,
4590   EL_TUBE_ANY,
4591   EL_TUBE_VERTICAL_LEFT,
4592
4593   EL_TUBE_VERTICAL,
4594   EL_TUBE_RIGHT_UP,
4595   EL_TUBE_HORIZONTAL_UP,
4596   EL_TUBE_LEFT_UP,
4597
4598   EL_TRAP,
4599   EL_DX_SUPABOMB,
4600   EL_EMPTY,
4601   EL_EMPTY
4602 };
4603 static int *editor_hl_dx_boulderdash_ptr = editor_hl_dx_boulderdash;
4604 static int *editor_el_dx_boulderdash_ptr = editor_el_dx_boulderdash;
4605 static int num_editor_hl_dx_boulderdash = ARRAY_SIZE(editor_hl_dx_boulderdash);
4606 static int num_editor_el_dx_boulderdash = ARRAY_SIZE(editor_el_dx_boulderdash);
4607
4608 static int editor_hl_mirror_magic[] =
4609 {
4610   EL_INTERNAL_CASCADE_MM_ACTIVE,
4611   EL_CHAR('M'),
4612   EL_CHAR('M'),
4613   EL_EMPTY,
4614 };
4615
4616 static int editor_el_mirror_magic[] =
4617 {
4618   EL_MM_MCDUFFIN_RIGHT,
4619   EL_MM_MCDUFFIN_UP,
4620   EL_MM_MCDUFFIN_LEFT,
4621   EL_MM_MCDUFFIN_DOWN,
4622
4623   EL_MM_MIRROR_START,
4624   EL_MM_MIRROR_FIXED_START,
4625   EL_MM_POLARIZER_START,
4626   EL_MM_POLARIZER_CROSS_START,
4627
4628   EL_MM_TELEPORTER_RED_START,
4629   EL_MM_TELEPORTER_YELLOW_START,
4630   EL_MM_TELEPORTER_GREEN_START,
4631   EL_MM_TELEPORTER_BLUE_START,
4632
4633   EL_MM_PRISM,
4634   EL_MM_FUSE_ACTIVE,
4635   EL_MM_PACMAN_RIGHT,
4636   EL_MM_EXIT_CLOSED,
4637
4638   EL_MM_KETTLE,
4639   EL_MM_BOMB,
4640   EL_MM_KEY,
4641   EL_MM_FUEL_FULL,
4642
4643   EL_MM_LIGHTBULB,
4644   EL_MM_LIGHTBULB_ACTIVE,
4645   EL_MM_GRAY_BALL,
4646   EL_MM_LIGHTBALL,
4647
4648   EL_MM_STEEL_WALL,
4649   EL_MM_WOODEN_WALL,
4650   EL_MM_ICE_WALL,
4651   EL_MM_AMOEBA_WALL,
4652
4653   EL_MM_STEEL_LOCK,
4654   EL_MM_WOODEN_LOCK,
4655   EL_MM_STEEL_BLOCK,
4656   EL_MM_WOODEN_BLOCK,
4657
4658   EL_MM_STEEL_GRID_FIXED_1,
4659   EL_MM_STEEL_GRID_FIXED_2,
4660   EL_MM_STEEL_GRID_FIXED_3,
4661   EL_MM_STEEL_GRID_FIXED_4,
4662
4663   EL_MM_WOODEN_GRID_FIXED_1,
4664   EL_MM_WOODEN_GRID_FIXED_2,
4665   EL_MM_WOODEN_GRID_FIXED_3,
4666   EL_MM_WOODEN_GRID_FIXED_4,
4667
4668   EL_MM_ENVELOPE_1,
4669   EL_MM_ENVELOPE_2,
4670   EL_MM_ENVELOPE_3,
4671   EL_MM_ENVELOPE_4
4672 };
4673 static int *editor_hl_mirror_magic_ptr = editor_hl_mirror_magic;
4674 static int *editor_el_mirror_magic_ptr = editor_el_mirror_magic;
4675 static int num_editor_hl_mirror_magic = ARRAY_SIZE(editor_hl_mirror_magic);
4676 static int num_editor_el_mirror_magic = ARRAY_SIZE(editor_el_mirror_magic);
4677
4678 static int editor_hl_deflektor[] =
4679 {
4680   EL_INTERNAL_CASCADE_DF_ACTIVE,
4681   EL_CHAR('D'),
4682   EL_CHAR('F'),
4683   EL_EMPTY,
4684 };
4685
4686 static int editor_el_deflektor[] =
4687 {
4688   EL_DF_LASER_RIGHT,
4689   EL_DF_LASER_UP,
4690   EL_DF_LASER_LEFT,
4691   EL_DF_LASER_DOWN,
4692
4693   EL_DF_RECEIVER_RIGHT,
4694   EL_DF_RECEIVER_UP,
4695   EL_DF_RECEIVER_LEFT,
4696   EL_DF_RECEIVER_DOWN,
4697
4698   EL_DF_MIRROR_START,
4699   EL_DF_MIRROR_ROTATING_START,
4700   EL_DF_MIRROR_FIXED_START,
4701   EL_DF_CELL,
4702
4703   EL_DF_FIBRE_OPTIC_RED_1,
4704   EL_DF_FIBRE_OPTIC_YELLOW_1,
4705   EL_DF_FIBRE_OPTIC_GREEN_1,
4706   EL_DF_FIBRE_OPTIC_BLUE_1,
4707
4708   EL_DF_STEEL_GRID_FIXED_START,
4709   EL_DF_STEEL_GRID_ROTATING_START,
4710   EL_DF_WOODEN_GRID_FIXED_START,
4711   EL_DF_WOODEN_GRID_ROTATING_START,
4712
4713   EL_DF_STEEL_WALL,
4714   EL_DF_WOODEN_WALL,
4715   EL_DF_REFRACTOR,
4716   EL_DF_MINE,
4717
4718   EL_DF_SLOPE_1,
4719   EL_DF_SLOPE_2,
4720   EL_DF_SLOPE_3,
4721   EL_DF_SLOPE_4
4722 };
4723 static int *editor_hl_deflektor_ptr = editor_hl_deflektor;
4724 static int *editor_el_deflektor_ptr = editor_el_deflektor;
4725 static int num_editor_hl_deflektor = ARRAY_SIZE(editor_hl_deflektor);
4726 static int num_editor_el_deflektor = ARRAY_SIZE(editor_el_deflektor);
4727
4728 static int editor_hl_chars[] =
4729 {
4730   EL_INTERNAL_CASCADE_CHARS_ACTIVE,
4731   EL_CHAR('T'),
4732   EL_CHAR('X'),
4733   EL_CHAR('T'),
4734 };
4735
4736 static int editor_el_chars[] =
4737 {
4738   EL_CHAR(' '),
4739   EL_CHAR('!'),
4740   EL_CHAR('"'),
4741   EL_CHAR('#'),
4742
4743   EL_CHAR('$'),
4744   EL_CHAR('%'),
4745   EL_CHAR('&'),
4746   EL_CHAR('\''),
4747
4748   EL_CHAR('('),
4749   EL_CHAR(')'),
4750   EL_CHAR('*'),
4751   EL_CHAR('+'),
4752
4753   EL_CHAR(','),
4754   EL_CHAR('-'),
4755   EL_CHAR('.'),
4756   EL_CHAR('/'),
4757
4758   EL_CHAR('0'),
4759   EL_CHAR('1'),
4760   EL_CHAR('2'),
4761   EL_CHAR('3'),
4762
4763   EL_CHAR('4'),
4764   EL_CHAR('5'),
4765   EL_CHAR('6'),
4766   EL_CHAR('7'),
4767
4768   EL_CHAR('8'),
4769   EL_CHAR('9'),
4770   EL_CHAR(':'),
4771   EL_CHAR(';'),
4772
4773   EL_CHAR('<'),
4774   EL_CHAR('='),
4775   EL_CHAR('>'),
4776   EL_CHAR('?'),
4777
4778   EL_CHAR('@'),
4779   EL_CHAR('A'),
4780   EL_CHAR('B'),
4781   EL_CHAR('C'),
4782
4783   EL_CHAR('D'),
4784   EL_CHAR('E'),
4785   EL_CHAR('F'),
4786   EL_CHAR('G'),
4787
4788   EL_CHAR('H'),
4789   EL_CHAR('I'),
4790   EL_CHAR('J'),
4791   EL_CHAR('K'),
4792
4793   EL_CHAR('L'),
4794   EL_CHAR('M'),
4795   EL_CHAR('N'),
4796   EL_CHAR('O'),
4797
4798   EL_CHAR('P'),
4799   EL_CHAR('Q'),
4800   EL_CHAR('R'),
4801   EL_CHAR('S'),
4802
4803   EL_CHAR('T'),
4804   EL_CHAR('U'),
4805   EL_CHAR('V'),
4806   EL_CHAR('W'),
4807
4808   EL_CHAR('X'),
4809   EL_CHAR('Y'),
4810   EL_CHAR('Z'),
4811   EL_CHAR('['),
4812
4813   EL_CHAR('\\'),
4814   EL_CHAR(']'),
4815   EL_CHAR('^'),
4816   EL_CHAR('_'),
4817
4818   EL_CHAR(CHAR_BYTE_COPYRIGHT),
4819   EL_CHAR(CHAR_BYTE_UMLAUT_A),
4820   EL_CHAR(CHAR_BYTE_UMLAUT_O),
4821   EL_CHAR(CHAR_BYTE_UMLAUT_U),
4822
4823   EL_CHAR(CHAR_BYTE_DEGREE),
4824   EL_CHAR(CHAR_BYTE_REGISTERED),
4825   EL_CHAR(FONT_ASCII_CURSOR),
4826   EL_CHAR(FONT_ASCII_BUTTON),
4827
4828   EL_CHAR(FONT_ASCII_UP),
4829   EL_CHAR(FONT_ASCII_DOWN),
4830   EL_CHAR(' '),
4831   EL_CHAR(' ')
4832 };
4833 static int *editor_hl_chars_ptr = editor_hl_chars;
4834 static int *editor_el_chars_ptr = editor_el_chars;
4835 static int num_editor_hl_chars = ARRAY_SIZE(editor_hl_chars);
4836 static int num_editor_el_chars = ARRAY_SIZE(editor_el_chars);
4837
4838 static int editor_hl_steel_chars[] =
4839 {
4840   EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
4841   EL_STEEL_CHAR('T'),
4842   EL_STEEL_CHAR('X'),
4843   EL_STEEL_CHAR('T'),
4844 };
4845
4846 static int editor_el_steel_chars[] =
4847 {
4848   EL_STEEL_CHAR(' '),
4849   EL_STEEL_CHAR('!'),
4850   EL_STEEL_CHAR('"'),
4851   EL_STEEL_CHAR('#'),
4852
4853   EL_STEEL_CHAR('$'),
4854   EL_STEEL_CHAR('%'),
4855   EL_STEEL_CHAR('&'),
4856   EL_STEEL_CHAR('\''),
4857
4858   EL_STEEL_CHAR('('),
4859   EL_STEEL_CHAR(')'),
4860   EL_STEEL_CHAR('*'),
4861   EL_STEEL_CHAR('+'),
4862
4863   EL_STEEL_CHAR(','),
4864   EL_STEEL_CHAR('-'),
4865   EL_STEEL_CHAR('.'),
4866   EL_STEEL_CHAR('/'),
4867
4868   EL_STEEL_CHAR('0'),
4869   EL_STEEL_CHAR('1'),
4870   EL_STEEL_CHAR('2'),
4871   EL_STEEL_CHAR('3'),
4872
4873   EL_STEEL_CHAR('4'),
4874   EL_STEEL_CHAR('5'),
4875   EL_STEEL_CHAR('6'),
4876   EL_STEEL_CHAR('7'),
4877
4878   EL_STEEL_CHAR('8'),
4879   EL_STEEL_CHAR('9'),
4880   EL_STEEL_CHAR(':'),
4881   EL_STEEL_CHAR(';'),
4882
4883   EL_STEEL_CHAR('<'),
4884   EL_STEEL_CHAR('='),
4885   EL_STEEL_CHAR('>'),
4886   EL_STEEL_CHAR('?'),
4887
4888   EL_STEEL_CHAR('@'),
4889   EL_STEEL_CHAR('A'),
4890   EL_STEEL_CHAR('B'),
4891   EL_STEEL_CHAR('C'),
4892
4893   EL_STEEL_CHAR('D'),
4894   EL_STEEL_CHAR('E'),
4895   EL_STEEL_CHAR('F'),
4896   EL_STEEL_CHAR('G'),
4897
4898   EL_STEEL_CHAR('H'),
4899   EL_STEEL_CHAR('I'),
4900   EL_STEEL_CHAR('J'),
4901   EL_STEEL_CHAR('K'),
4902
4903   EL_STEEL_CHAR('L'),
4904   EL_STEEL_CHAR('M'),
4905   EL_STEEL_CHAR('N'),
4906   EL_STEEL_CHAR('O'),
4907
4908   EL_STEEL_CHAR('P'),
4909   EL_STEEL_CHAR('Q'),
4910   EL_STEEL_CHAR('R'),
4911   EL_STEEL_CHAR('S'),
4912
4913   EL_STEEL_CHAR('T'),
4914   EL_STEEL_CHAR('U'),
4915   EL_STEEL_CHAR('V'),
4916   EL_STEEL_CHAR('W'),
4917
4918   EL_STEEL_CHAR('X'),
4919   EL_STEEL_CHAR('Y'),
4920   EL_STEEL_CHAR('Z'),
4921   EL_STEEL_CHAR('['),
4922
4923   EL_STEEL_CHAR('\\'),
4924   EL_STEEL_CHAR(']'),
4925   EL_STEEL_CHAR('^'),
4926   EL_STEEL_CHAR('_'),
4927
4928   EL_STEEL_CHAR(CHAR_BYTE_COPYRIGHT),
4929   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_A),
4930   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_O),
4931   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_U),
4932
4933   EL_STEEL_CHAR(CHAR_BYTE_DEGREE),
4934   EL_STEEL_CHAR(CHAR_BYTE_REGISTERED),
4935   EL_STEEL_CHAR(FONT_ASCII_CURSOR),
4936   EL_STEEL_CHAR(FONT_ASCII_BUTTON),
4937
4938   EL_STEEL_CHAR(FONT_ASCII_UP),
4939   EL_STEEL_CHAR(FONT_ASCII_DOWN),
4940   EL_STEEL_CHAR(' '),
4941   EL_STEEL_CHAR(' ')
4942 };
4943 static int *editor_hl_steel_chars_ptr = editor_hl_steel_chars;
4944 static int *editor_el_steel_chars_ptr = editor_el_steel_chars;
4945 static int num_editor_hl_steel_chars = ARRAY_SIZE(editor_hl_steel_chars);
4946 static int num_editor_el_steel_chars = ARRAY_SIZE(editor_el_steel_chars);
4947
4948 static int editor_hl_custom[] =
4949 {
4950   EL_INTERNAL_CASCADE_CE_ACTIVE,
4951   EL_CHAR('C'),
4952   EL_CHAR('E'),
4953   EL_EMPTY,
4954 };
4955
4956 static int editor_el_custom[] =
4957 {
4958   EL_CUSTOM_START + 0,
4959   EL_CUSTOM_START + 1,
4960   EL_CUSTOM_START + 2,
4961   EL_CUSTOM_START + 3,
4962
4963   EL_CUSTOM_START + 4,
4964   EL_CUSTOM_START + 5,
4965   EL_CUSTOM_START + 6,
4966   EL_CUSTOM_START + 7,
4967
4968   EL_CUSTOM_START + 8,
4969   EL_CUSTOM_START + 9,
4970   EL_CUSTOM_START + 10,
4971   EL_CUSTOM_START + 11,
4972
4973   EL_CUSTOM_START + 12,
4974   EL_CUSTOM_START + 13,
4975   EL_CUSTOM_START + 14,
4976   EL_CUSTOM_START + 15,
4977
4978   EL_CUSTOM_START + 16,
4979   EL_CUSTOM_START + 17,
4980   EL_CUSTOM_START + 18,
4981   EL_CUSTOM_START + 19,
4982
4983   EL_CUSTOM_START + 20,
4984   EL_CUSTOM_START + 21,
4985   EL_CUSTOM_START + 22,
4986   EL_CUSTOM_START + 23,
4987
4988   EL_CUSTOM_START + 24,
4989   EL_CUSTOM_START + 25,
4990   EL_CUSTOM_START + 26,
4991   EL_CUSTOM_START + 27,
4992
4993   EL_CUSTOM_START + 28,
4994   EL_CUSTOM_START + 29,
4995   EL_CUSTOM_START + 30,
4996   EL_CUSTOM_START + 31,
4997
4998   EL_CUSTOM_START + 32,
4999   EL_CUSTOM_START + 33,
5000   EL_CUSTOM_START + 34,
5001   EL_CUSTOM_START + 35,
5002
5003   EL_CUSTOM_START + 36,
5004   EL_CUSTOM_START + 37,
5005   EL_CUSTOM_START + 38,
5006   EL_CUSTOM_START + 39,
5007
5008   EL_CUSTOM_START + 40,
5009   EL_CUSTOM_START + 41,
5010   EL_CUSTOM_START + 42,
5011   EL_CUSTOM_START + 43,
5012
5013   EL_CUSTOM_START + 44,
5014   EL_CUSTOM_START + 45,
5015   EL_CUSTOM_START + 46,
5016   EL_CUSTOM_START + 47,
5017
5018   EL_CUSTOM_START + 48,
5019   EL_CUSTOM_START + 49,
5020   EL_CUSTOM_START + 50,
5021   EL_CUSTOM_START + 51,
5022
5023   EL_CUSTOM_START + 52,
5024   EL_CUSTOM_START + 53,
5025   EL_CUSTOM_START + 54,
5026   EL_CUSTOM_START + 55,
5027
5028   EL_CUSTOM_START + 56,
5029   EL_CUSTOM_START + 57,
5030   EL_CUSTOM_START + 58,
5031   EL_CUSTOM_START + 59,
5032
5033   EL_CUSTOM_START + 60,
5034   EL_CUSTOM_START + 61,
5035   EL_CUSTOM_START + 62,
5036   EL_CUSTOM_START + 63,
5037
5038   EL_CUSTOM_START + 64,
5039   EL_CUSTOM_START + 65,
5040   EL_CUSTOM_START + 66,
5041   EL_CUSTOM_START + 67,
5042
5043   EL_CUSTOM_START + 68,
5044   EL_CUSTOM_START + 69,
5045   EL_CUSTOM_START + 70,
5046   EL_CUSTOM_START + 71,
5047
5048   EL_CUSTOM_START + 72,
5049   EL_CUSTOM_START + 73,
5050   EL_CUSTOM_START + 74,
5051   EL_CUSTOM_START + 75,
5052
5053   EL_CUSTOM_START + 76,
5054   EL_CUSTOM_START + 77,
5055   EL_CUSTOM_START + 78,
5056   EL_CUSTOM_START + 79,
5057
5058   EL_CUSTOM_START + 80,
5059   EL_CUSTOM_START + 81,
5060   EL_CUSTOM_START + 82,
5061   EL_CUSTOM_START + 83,
5062
5063   EL_CUSTOM_START + 84,
5064   EL_CUSTOM_START + 85,
5065   EL_CUSTOM_START + 86,
5066   EL_CUSTOM_START + 87,
5067
5068   EL_CUSTOM_START + 88,
5069   EL_CUSTOM_START + 89,
5070   EL_CUSTOM_START + 90,
5071   EL_CUSTOM_START + 91,
5072
5073   EL_CUSTOM_START + 92,
5074   EL_CUSTOM_START + 93,
5075   EL_CUSTOM_START + 94,
5076   EL_CUSTOM_START + 95,
5077
5078   EL_CUSTOM_START + 96,
5079   EL_CUSTOM_START + 97,
5080   EL_CUSTOM_START + 98,
5081   EL_CUSTOM_START + 99,
5082
5083   EL_CUSTOM_START + 100,
5084   EL_CUSTOM_START + 101,
5085   EL_CUSTOM_START + 102,
5086   EL_CUSTOM_START + 103,
5087
5088   EL_CUSTOM_START + 104,
5089   EL_CUSTOM_START + 105,
5090   EL_CUSTOM_START + 106,
5091   EL_CUSTOM_START + 107,
5092
5093   EL_CUSTOM_START + 108,
5094   EL_CUSTOM_START + 109,
5095   EL_CUSTOM_START + 110,
5096   EL_CUSTOM_START + 111,
5097
5098   EL_CUSTOM_START + 112,
5099   EL_CUSTOM_START + 113,
5100   EL_CUSTOM_START + 114,
5101   EL_CUSTOM_START + 115,
5102
5103   EL_CUSTOM_START + 116,
5104   EL_CUSTOM_START + 117,
5105   EL_CUSTOM_START + 118,
5106   EL_CUSTOM_START + 119,
5107
5108   EL_CUSTOM_START + 120,
5109   EL_CUSTOM_START + 121,
5110   EL_CUSTOM_START + 122,
5111   EL_CUSTOM_START + 123,
5112
5113   EL_CUSTOM_START + 124,
5114   EL_CUSTOM_START + 125,
5115   EL_CUSTOM_START + 126,
5116   EL_CUSTOM_START + 127,
5117
5118   EL_CUSTOM_START + 128,
5119   EL_CUSTOM_START + 129,
5120   EL_CUSTOM_START + 130,
5121   EL_CUSTOM_START + 131,
5122
5123   EL_CUSTOM_START + 132,
5124   EL_CUSTOM_START + 133,
5125   EL_CUSTOM_START + 134,
5126   EL_CUSTOM_START + 135,
5127
5128   EL_CUSTOM_START + 136,
5129   EL_CUSTOM_START + 137,
5130   EL_CUSTOM_START + 138,
5131   EL_CUSTOM_START + 139,
5132
5133   EL_CUSTOM_START + 140,
5134   EL_CUSTOM_START + 141,
5135   EL_CUSTOM_START + 142,
5136   EL_CUSTOM_START + 143,
5137
5138   EL_CUSTOM_START + 144,
5139   EL_CUSTOM_START + 145,
5140   EL_CUSTOM_START + 146,
5141   EL_CUSTOM_START + 147,
5142
5143   EL_CUSTOM_START + 148,
5144   EL_CUSTOM_START + 149,
5145   EL_CUSTOM_START + 150,
5146   EL_CUSTOM_START + 151,
5147
5148   EL_CUSTOM_START + 152,
5149   EL_CUSTOM_START + 153,
5150   EL_CUSTOM_START + 154,
5151   EL_CUSTOM_START + 155,
5152
5153   EL_CUSTOM_START + 156,
5154   EL_CUSTOM_START + 157,
5155   EL_CUSTOM_START + 158,
5156   EL_CUSTOM_START + 159,
5157
5158   EL_CUSTOM_START + 160,
5159   EL_CUSTOM_START + 161,
5160   EL_CUSTOM_START + 162,
5161   EL_CUSTOM_START + 163,
5162
5163   EL_CUSTOM_START + 164,
5164   EL_CUSTOM_START + 165,
5165   EL_CUSTOM_START + 166,
5166   EL_CUSTOM_START + 167,
5167
5168   EL_CUSTOM_START + 168,
5169   EL_CUSTOM_START + 169,
5170   EL_CUSTOM_START + 170,
5171   EL_CUSTOM_START + 171,
5172
5173   EL_CUSTOM_START + 172,
5174   EL_CUSTOM_START + 173,
5175   EL_CUSTOM_START + 174,
5176   EL_CUSTOM_START + 175,
5177
5178   EL_CUSTOM_START + 176,
5179   EL_CUSTOM_START + 177,
5180   EL_CUSTOM_START + 178,
5181   EL_CUSTOM_START + 179,
5182
5183   EL_CUSTOM_START + 180,
5184   EL_CUSTOM_START + 181,
5185   EL_CUSTOM_START + 182,
5186   EL_CUSTOM_START + 183,
5187
5188   EL_CUSTOM_START + 184,
5189   EL_CUSTOM_START + 185,
5190   EL_CUSTOM_START + 186,
5191   EL_CUSTOM_START + 187,
5192
5193   EL_CUSTOM_START + 188,
5194   EL_CUSTOM_START + 189,
5195   EL_CUSTOM_START + 190,
5196   EL_CUSTOM_START + 191,
5197
5198   EL_CUSTOM_START + 192,
5199   EL_CUSTOM_START + 193,
5200   EL_CUSTOM_START + 194,
5201   EL_CUSTOM_START + 195,
5202
5203   EL_CUSTOM_START + 196,
5204   EL_CUSTOM_START + 197,
5205   EL_CUSTOM_START + 198,
5206   EL_CUSTOM_START + 199,
5207
5208   EL_CUSTOM_START + 200,
5209   EL_CUSTOM_START + 201,
5210   EL_CUSTOM_START + 202,
5211   EL_CUSTOM_START + 203,
5212
5213   EL_CUSTOM_START + 204,
5214   EL_CUSTOM_START + 205,
5215   EL_CUSTOM_START + 206,
5216   EL_CUSTOM_START + 207,
5217
5218   EL_CUSTOM_START + 208,
5219   EL_CUSTOM_START + 209,
5220   EL_CUSTOM_START + 210,
5221   EL_CUSTOM_START + 211,
5222
5223   EL_CUSTOM_START + 212,
5224   EL_CUSTOM_START + 213,
5225   EL_CUSTOM_START + 214,
5226   EL_CUSTOM_START + 215,
5227
5228   EL_CUSTOM_START + 216,
5229   EL_CUSTOM_START + 217,
5230   EL_CUSTOM_START + 218,
5231   EL_CUSTOM_START + 219,
5232
5233   EL_CUSTOM_START + 220,
5234   EL_CUSTOM_START + 221,
5235   EL_CUSTOM_START + 222,
5236   EL_CUSTOM_START + 223,
5237
5238   EL_CUSTOM_START + 224,
5239   EL_CUSTOM_START + 225,
5240   EL_CUSTOM_START + 226,
5241   EL_CUSTOM_START + 227,
5242
5243   EL_CUSTOM_START + 228,
5244   EL_CUSTOM_START + 229,
5245   EL_CUSTOM_START + 230,
5246   EL_CUSTOM_START + 231,
5247
5248   EL_CUSTOM_START + 232,
5249   EL_CUSTOM_START + 233,
5250   EL_CUSTOM_START + 234,
5251   EL_CUSTOM_START + 235,
5252
5253   EL_CUSTOM_START + 236,
5254   EL_CUSTOM_START + 237,
5255   EL_CUSTOM_START + 238,
5256   EL_CUSTOM_START + 239,
5257
5258   EL_CUSTOM_START + 240,
5259   EL_CUSTOM_START + 241,
5260   EL_CUSTOM_START + 242,
5261   EL_CUSTOM_START + 243,
5262
5263   EL_CUSTOM_START + 244,
5264   EL_CUSTOM_START + 245,
5265   EL_CUSTOM_START + 246,
5266   EL_CUSTOM_START + 247,
5267
5268   EL_CUSTOM_START + 248,
5269   EL_CUSTOM_START + 249,
5270   EL_CUSTOM_START + 250,
5271   EL_CUSTOM_START + 251,
5272
5273   EL_CUSTOM_START + 252,
5274   EL_CUSTOM_START + 253,
5275   EL_CUSTOM_START + 254,
5276   EL_CUSTOM_START + 255
5277 };
5278 static int *editor_hl_custom_ptr = editor_hl_custom;
5279 static int *editor_el_custom_ptr = editor_el_custom;
5280 static int num_editor_hl_custom = ARRAY_SIZE(editor_hl_custom);
5281 static int num_editor_el_custom = ARRAY_SIZE(editor_el_custom);
5282
5283 static int editor_hl_group[] =
5284 {
5285   EL_INTERNAL_CASCADE_GE_ACTIVE,
5286   EL_CHAR('G'),
5287   EL_CHAR('E'),
5288   EL_EMPTY,
5289 };
5290
5291 static int editor_el_group[] =
5292 {
5293   EL_GROUP_START + 0,
5294   EL_GROUP_START + 1,
5295   EL_GROUP_START + 2,
5296   EL_GROUP_START + 3,
5297
5298   EL_GROUP_START + 4,
5299   EL_GROUP_START + 5,
5300   EL_GROUP_START + 6,
5301   EL_GROUP_START + 7,
5302
5303   EL_GROUP_START + 8,
5304   EL_GROUP_START + 9,
5305   EL_GROUP_START + 10,
5306   EL_GROUP_START + 11,
5307
5308   EL_GROUP_START + 12,
5309   EL_GROUP_START + 13,
5310   EL_GROUP_START + 14,
5311   EL_GROUP_START + 15,
5312
5313   EL_GROUP_START + 16,
5314   EL_GROUP_START + 17,
5315   EL_GROUP_START + 18,
5316   EL_GROUP_START + 19,
5317
5318   EL_GROUP_START + 20,
5319   EL_GROUP_START + 21,
5320   EL_GROUP_START + 22,
5321   EL_GROUP_START + 23,
5322
5323   EL_GROUP_START + 24,
5324   EL_GROUP_START + 25,
5325   EL_GROUP_START + 26,
5326   EL_GROUP_START + 27,
5327
5328   EL_GROUP_START + 28,
5329   EL_GROUP_START + 29,
5330   EL_GROUP_START + 30,
5331   EL_GROUP_START + 31
5332 };
5333 static int *editor_hl_group_ptr = editor_hl_group;
5334 static int *editor_el_group_ptr = editor_el_group;
5335 static int num_editor_hl_group = ARRAY_SIZE(editor_hl_group);
5336 static int num_editor_el_group = ARRAY_SIZE(editor_el_group);
5337
5338 static int editor_hl_empty_space[] =
5339 {
5340   EL_INTERNAL_CASCADE_ES_ACTIVE,
5341   EL_CHAR('E'),
5342   EL_CHAR('S'),
5343   EL_EMPTY,
5344 };
5345
5346 static int editor_el_empty_space[] =
5347 {
5348   EL_EMPTY_SPACE_1,
5349   EL_EMPTY_SPACE_2,
5350   EL_EMPTY_SPACE_3,
5351   EL_EMPTY_SPACE_4,
5352
5353   EL_EMPTY_SPACE_5,
5354   EL_EMPTY_SPACE_6,
5355   EL_EMPTY_SPACE_7,
5356   EL_EMPTY_SPACE_8,
5357
5358   EL_EMPTY_SPACE_9,
5359   EL_EMPTY_SPACE_10,
5360   EL_EMPTY_SPACE_11,
5361   EL_EMPTY_SPACE_12,
5362
5363   EL_EMPTY_SPACE_13,
5364   EL_EMPTY_SPACE_14,
5365   EL_EMPTY_SPACE_15,
5366   EL_EMPTY_SPACE_16
5367 };
5368 static int *editor_hl_empty_space_ptr = editor_hl_empty_space;
5369 static int *editor_el_empty_space_ptr = editor_el_empty_space;
5370 static int num_editor_hl_empty_space = ARRAY_SIZE(editor_hl_empty_space);
5371 static int num_editor_el_empty_space = ARRAY_SIZE(editor_el_empty_space);
5372
5373 static int editor_hl_reference[] =
5374 {
5375   EL_INTERNAL_CASCADE_REF_ACTIVE,
5376   EL_CHAR('R'),
5377   EL_CHAR('E'),
5378   EL_CHAR('F')
5379 };
5380
5381 static int editor_el_reference[] =
5382 {
5383   EL_TRIGGER_PLAYER,
5384   EL_TRIGGER_ELEMENT,
5385   EL_TRIGGER_CE_VALUE,
5386   EL_TRIGGER_CE_SCORE,
5387
5388   EL_SELF,
5389   EL_ANY_ELEMENT,
5390   EL_CURRENT_CE_VALUE,
5391   EL_CURRENT_CE_SCORE,
5392
5393   EL_PREV_CE_8,
5394   EL_PREV_CE_7,
5395   EL_PREV_CE_6,
5396   EL_PREV_CE_5,
5397
5398   EL_PREV_CE_4,
5399   EL_PREV_CE_3,
5400   EL_PREV_CE_2,
5401   EL_PREV_CE_1,
5402
5403   EL_NEXT_CE_1,
5404   EL_NEXT_CE_2,
5405   EL_NEXT_CE_3,
5406   EL_NEXT_CE_4,
5407
5408   EL_NEXT_CE_5,
5409   EL_NEXT_CE_6,
5410   EL_NEXT_CE_7,
5411   EL_NEXT_CE_8,
5412 };
5413 static int *editor_hl_reference_ptr = editor_hl_reference;
5414 static int *editor_el_reference_ptr = editor_el_reference;
5415 static int num_editor_hl_reference = ARRAY_SIZE(editor_hl_reference);
5416 static int num_editor_el_reference = ARRAY_SIZE(editor_el_reference);
5417
5418 static int editor_hl_user_defined[] =
5419 {
5420   EL_INTERNAL_CASCADE_USER_ACTIVE,
5421   EL_CHAR('M'),
5422   EL_CHAR('Y'),
5423   EL_EMPTY,
5424 };
5425
5426 static int *editor_hl_user_defined_ptr = editor_hl_user_defined;
5427 static int *editor_el_user_defined_ptr = NULL;
5428 static int num_editor_hl_user_defined = ARRAY_SIZE(editor_hl_user_defined);
5429 static int num_editor_el_user_defined = 0;
5430
5431 static int editor_hl_dynamic[] =
5432 {
5433   EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
5434   EL_CHAR('U'),
5435   EL_CHAR('S'),
5436   EL_CHAR('E'),
5437 };
5438
5439 static int *editor_hl_dynamic_ptr = editor_hl_dynamic;
5440 static int *editor_el_dynamic_ptr = NULL;
5441 static int num_editor_hl_dynamic = ARRAY_SIZE(editor_hl_dynamic);
5442 static int num_editor_el_dynamic = 0;
5443
5444 static int editor_hl_empty[] = { EL_EMPTY };
5445 static int *editor_el_empty = NULL;     // dynamically allocated
5446
5447 static int *editor_hl_empty_ptr = editor_hl_empty;
5448 static int *editor_el_empty_ptr = NULL;
5449 static int num_editor_hl_empty = 0;
5450 static int num_editor_el_empty = 0;     // dynamically determined, if needed
5451
5452 static boolean use_el_empty = FALSE;
5453
5454 static int *editor_elements = NULL;     // dynamically allocated
5455 static int num_editor_elements = 0;     // dynamically determined
5456
5457 static boolean setup_editor_cascade_never = FALSE;
5458
5459 static boolean setup_editor_el_players                  = TRUE;
5460 static boolean setup_editor_el_boulderdash              = TRUE;
5461 static boolean setup_editor_el_emerald_mine             = TRUE;
5462 static boolean setup_editor_el_emerald_mine_club        = TRUE;
5463 static boolean setup_editor_el_more                     = TRUE;
5464 static boolean setup_editor_el_sokoban                  = TRUE;
5465 static boolean setup_editor_el_supaplex                 = TRUE;
5466 static boolean setup_editor_el_diamond_caves            = TRUE;
5467 static boolean setup_editor_el_dx_boulderdash           = TRUE;
5468 static boolean setup_editor_el_mirror_magic             = TRUE;
5469 static boolean setup_editor_el_deflektor                = TRUE;
5470 static boolean setup_editor_el_chars                    = TRUE;
5471 static boolean setup_editor_el_steel_chars              = TRUE;
5472 static boolean setup_editor_el_custom                   = TRUE;
5473 static boolean setup_editor_el_user_defined             = TRUE;
5474 static boolean setup_editor_el_dynamic                  = TRUE;
5475
5476 static int editor_hl_unused[] = { EL_EMPTY };
5477 static int *editor_hl_unused_ptr = editor_hl_unused;
5478 static int num_editor_hl_unused = 0;
5479
5480 static struct
5481 {
5482   boolean *setup_value;
5483   boolean *setup_cascade_value;
5484
5485   int **headline_list;
5486   int *headline_list_size;
5487
5488   int **element_list;
5489   int *element_list_size;
5490
5491   boolean last_setup_value;
5492 }
5493 editor_elements_info[] =
5494 {
5495   {
5496     &setup_editor_el_players,
5497     &setup_editor_cascade_never,
5498     &editor_hl_unused_ptr,              &num_editor_hl_unused,
5499     &editor_el_players_ptr,             &num_editor_el_players
5500   },
5501   {
5502     &setup_editor_el_boulderdash,
5503     &setup.editor_cascade.el_bd,
5504     &editor_hl_boulderdash_ptr,         &num_editor_hl_boulderdash,
5505     &editor_el_boulderdash_ptr,         &num_editor_el_boulderdash
5506   },
5507   {
5508     &setup_editor_el_emerald_mine,
5509     &setup.editor_cascade.el_em,
5510     &editor_hl_emerald_mine_ptr,        &num_editor_hl_emerald_mine,
5511     &editor_el_emerald_mine_ptr,        &num_editor_el_emerald_mine
5512   },
5513   {
5514     &setup_editor_el_emerald_mine_club,
5515     &setup.editor_cascade.el_emc,
5516     &editor_hl_emerald_mine_club_ptr,   &num_editor_hl_emerald_mine_club,
5517     &editor_el_emerald_mine_club_ptr,   &num_editor_el_emerald_mine_club
5518   },
5519   {
5520     &setup_editor_el_more,
5521     &setup.editor_cascade.el_rnd,
5522     &editor_hl_rnd_ptr,                 &num_editor_hl_rnd,
5523     &editor_el_rnd_ptr,                 &num_editor_el_rnd
5524   },
5525   {
5526     &setup_editor_el_sokoban,
5527     &setup.editor_cascade.el_sb,
5528     &editor_hl_sokoban_ptr,             &num_editor_hl_sokoban,
5529     &editor_el_sokoban_ptr,             &num_editor_el_sokoban
5530   },
5531   {
5532     &setup_editor_el_supaplex,
5533     &setup.editor_cascade.el_sp,
5534     &editor_hl_supaplex_ptr,            &num_editor_hl_supaplex,
5535     &editor_el_supaplex_ptr,            &num_editor_el_supaplex
5536   },
5537   {
5538     &setup_editor_el_diamond_caves,
5539     &setup.editor_cascade.el_dc,
5540     &editor_hl_diamond_caves_ptr,       &num_editor_hl_diamond_caves,
5541     &editor_el_diamond_caves_ptr,       &num_editor_el_diamond_caves
5542   },
5543   {
5544     &setup_editor_el_dx_boulderdash,
5545     &setup.editor_cascade.el_dx,
5546     &editor_hl_dx_boulderdash_ptr,      &num_editor_hl_dx_boulderdash,
5547     &editor_el_dx_boulderdash_ptr,      &num_editor_el_dx_boulderdash
5548   },
5549   {
5550     &setup_editor_el_mirror_magic,
5551     &setup.editor_cascade.el_mm,
5552     &editor_hl_mirror_magic_ptr,        &num_editor_hl_mirror_magic,
5553     &editor_el_mirror_magic_ptr,        &num_editor_el_mirror_magic
5554   },
5555   {
5556     &setup_editor_el_deflektor,
5557     &setup.editor_cascade.el_df,
5558     &editor_hl_deflektor_ptr,           &num_editor_hl_deflektor,
5559     &editor_el_deflektor_ptr,           &num_editor_el_deflektor
5560   },
5561   {
5562     &setup_editor_el_chars,
5563     &setup.editor_cascade.el_chars,
5564     &editor_hl_chars_ptr,               &num_editor_hl_chars,
5565     &editor_el_chars_ptr,               &num_editor_el_chars
5566   },
5567   {
5568     &setup_editor_el_steel_chars,
5569     &setup.editor_cascade.el_steel_chars,
5570     &editor_hl_steel_chars_ptr,         &num_editor_hl_steel_chars,
5571     &editor_el_steel_chars_ptr,         &num_editor_el_steel_chars
5572   },
5573   {
5574     &setup_editor_el_custom,
5575     &setup.editor_cascade.el_ce,
5576     &editor_hl_custom_ptr,              &num_editor_hl_custom,
5577     &editor_el_custom_ptr,              &num_editor_el_custom
5578   },
5579   {
5580     &setup_editor_el_custom,
5581     &setup.editor_cascade.el_ge,
5582     &editor_hl_group_ptr,               &num_editor_hl_group,
5583     &editor_el_group_ptr,               &num_editor_el_group
5584   },
5585   {
5586     &setup_editor_el_custom,
5587     &setup.editor_cascade.el_es,
5588     &editor_hl_empty_space_ptr,         &num_editor_hl_empty_space,
5589     &editor_el_empty_space_ptr,         &num_editor_el_empty_space
5590   },
5591   {
5592     &setup_editor_el_custom,
5593     &setup.editor_cascade.el_ref,
5594     &editor_hl_reference_ptr,           &num_editor_hl_reference,
5595     &editor_el_reference_ptr,           &num_editor_el_reference
5596   },
5597   {
5598     &setup_editor_el_user_defined,
5599     &setup.editor_cascade.el_user,
5600     &editor_hl_user_defined_ptr,        &num_editor_hl_user_defined,
5601     &editor_el_user_defined_ptr,        &num_editor_el_user_defined
5602   },
5603   {
5604     &setup_editor_el_dynamic,
5605     &setup.editor_cascade.el_dynamic,
5606     &editor_hl_dynamic_ptr,             &num_editor_hl_dynamic,
5607     &editor_el_dynamic_ptr,             &num_editor_el_dynamic,
5608   },
5609   {
5610     &use_el_empty,
5611     &use_el_empty,
5612     &editor_hl_empty_ptr,               &num_editor_hl_empty,
5613     &editor_el_empty_ptr,               &num_editor_el_empty,
5614   },
5615   {
5616     NULL,
5617     NULL,
5618     NULL,                               NULL,
5619     NULL,                               NULL
5620   }
5621 };
5622
5623 static struct XY xy_directions[] =
5624 {
5625   { -1,  0 },
5626   { +1,  0 },
5627   {  0, -1 },
5628   {  0, +1 }
5629 };
5630
5631
5632 // ----------------------------------------------------------------------------
5633 // functions
5634 // ----------------------------------------------------------------------------
5635
5636 static int getMaxInfoTextLength(void)
5637 {
5638   return (SXSIZE / getFontWidth(INFOTEXT_FONT));
5639 }
5640
5641 static int getTextWidthForGadget(char *text)
5642 {
5643   if (text == NULL)
5644     return 0;
5645
5646   return (getTextWidth(text, FONT_TEXT_1) + ED_GADGET_TEXT_DISTANCE);
5647 }
5648
5649 static int getTextWidthForDrawingArea(char *text)
5650 {
5651   if (text == NULL)
5652     return 0;
5653
5654   return (getTextWidth(text, FONT_TEXT_1) + ED_DRAWINGAREA_TEXT_DISTANCE);
5655 }
5656
5657 static int getRightGadgetBorder(struct GadgetInfo *gi, char *text)
5658 {
5659   return (gi->x + gi->width + getTextWidthForGadget(text));
5660 }
5661
5662 static char *getElementInfoText(int element)
5663 {
5664   char *info_text = NULL;
5665
5666   if (element < MAX_NUM_ELEMENTS)
5667   {
5668     if (strlen(element_info[element].description) > 0)
5669       info_text = element_info[element].description;
5670     else if (element_info[element].custom_description != NULL)
5671       info_text = element_info[element].custom_description;
5672     else if (element_info[element].editor_description != NULL)
5673       info_text = element_info[element].editor_description;
5674   }
5675
5676   if (info_text == NULL)
5677     info_text = INFOTEXT_UNKNOWN_ELEMENT;
5678
5679   return info_text;
5680 }
5681
5682 static char *getElementDescriptionFilenameExt(char *basename)
5683 {
5684   char *elements_subdir = ELEMENTS_DIRECTORY;
5685   static char *elements_subdir2 = NULL;
5686   static char *filename = NULL;
5687
5688   if (elements_subdir2 == NULL)
5689     elements_subdir2 = getPath2(DOCS_DIRECTORY, elements_subdir);
5690
5691   checked_free(filename);
5692
5693   // 1st try: look for element description in current level set directory
5694   filename = getPath3(getCurrentLevelDir(), elements_subdir2, basename);
5695   if (fileExists(filename))
5696     return filename;
5697
5698   free(filename);
5699
5700   // 2nd try: look for element description in the game's base directory
5701   filename = getPath3(options.docs_directory, elements_subdir, basename);
5702   if (fileExists(filename))
5703     return filename;
5704
5705   return NULL;
5706 }
5707
5708 static char *getElementDescriptionFilename(int element)
5709 {
5710   char basename[MAX_FILENAME_LEN];
5711   char *filename;
5712
5713   // 1st try: look for element description file for exactly this element
5714   sprintf(basename, "%s.txt", element_info[element].token_name);
5715   filename = getElementDescriptionFilenameExt(basename);
5716   if (filename != NULL)
5717     return filename;
5718
5719   // 2nd try: look for element description file for this element's class
5720   sprintf(basename, "%s.txt", element_info[element].class_name);
5721   filename = getElementDescriptionFilenameExt(basename);
5722   if (filename != NULL)
5723     return filename;
5724
5725   // 3rd try: look for generic fallback text file for any element
5726   filename = getElementDescriptionFilenameExt(FALLBACK_TEXT_FILENAME);
5727   if (filename != NULL)
5728     return filename;
5729
5730   return NULL;
5731 }
5732
5733 static boolean suppressBorderElement(void)
5734 {
5735   return (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
5736           lev_fieldx <= MAX_ED_FIELDX &&
5737           lev_fieldy <= MAX_ED_FIELDY);
5738 }
5739
5740 static void InitDynamicEditorElementList(int **elements, int *num_elements)
5741 {
5742   boolean element_found[NUM_FILE_ELEMENTS];
5743   int i, x, y;
5744
5745   // initialize list of used elements to "not used"
5746   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5747     element_found[i] = FALSE;
5748
5749   // find all elements used in current level
5750   for (y = 0; y < lev_fieldy; y++)
5751   {
5752     for (x = 0; x < lev_fieldx; x++)
5753     {
5754       if (Tile[x][y] >= NUM_FILE_ELEMENTS)      // should never happen
5755         continue;
5756
5757       if (IS_MM_WALL(Tile[x][y]))
5758         element_found[map_mm_wall_element(Tile[x][y])] = TRUE;
5759       else
5760         element_found[Tile[x][y]] = TRUE;
5761     }
5762   }
5763
5764   *num_elements = 0;
5765
5766   // count number of elements used in current level
5767   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5768     if (element_found[i])
5769       (*num_elements)++;
5770
5771   // add space for up to 3 more elements for padding that may be needed
5772   *num_elements += 3;
5773
5774   // free memory for old list of elements, if needed
5775   checked_free(*elements);
5776
5777   // allocate memory for new list of elements
5778   *elements = checked_malloc(*num_elements * sizeof(int));
5779
5780   *num_elements = 0;
5781
5782   // add all elements used in current level (non-custom/group/empty elements)
5783   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5784     if (element_found[i] && !(IS_CUSTOM_ELEMENT(i) ||
5785                               IS_GROUP_ELEMENT(i) ||
5786                               IS_EMPTY_ELEMENT(i)))
5787       (*elements)[(*num_elements)++] = i;
5788
5789   // add all elements used in current level (custom/group/empty elements)
5790   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5791     if (element_found[i] && (IS_CUSTOM_ELEMENT(i) ||
5792                              IS_GROUP_ELEMENT(i) ||
5793                              IS_EMPTY_ELEMENT(i)))
5794       (*elements)[(*num_elements)++] = i;
5795
5796   while (*num_elements % 4)     // pad with empty elements, if needed
5797     (*elements)[(*num_elements)++] = EL_EMPTY;
5798 }
5799
5800 static void ReinitializeElementList_EnableSections(void)
5801 {
5802   // default: enable all element sections
5803
5804   setup_editor_el_players               = TRUE;
5805   setup_editor_el_boulderdash           = TRUE;
5806   setup_editor_el_emerald_mine          = TRUE;
5807   setup_editor_el_emerald_mine_club     = TRUE;
5808   setup_editor_el_more                  = TRUE;
5809   setup_editor_el_sokoban               = TRUE;
5810   setup_editor_el_supaplex              = TRUE;
5811   setup_editor_el_diamond_caves         = TRUE;
5812   setup_editor_el_dx_boulderdash        = TRUE;
5813   setup_editor_el_mirror_magic          = TRUE;
5814   setup_editor_el_deflektor             = TRUE;
5815   setup_editor_el_chars                 = TRUE;
5816   setup_editor_el_steel_chars           = TRUE;
5817
5818   setup_editor_el_custom                = TRUE;
5819   setup_editor_el_user_defined          = TRUE;
5820   setup_editor_el_dynamic               = TRUE;
5821
5822   // now disable all element sections not to be displayed
5823
5824   if (!setup.editor.el_classic)
5825   {
5826     setup_editor_el_players             = FALSE;
5827     setup_editor_el_boulderdash         = FALSE;
5828     setup_editor_el_emerald_mine        = FALSE;
5829     setup_editor_el_emerald_mine_club   = FALSE;
5830     setup_editor_el_more                = FALSE;
5831     setup_editor_el_sokoban             = FALSE;
5832     setup_editor_el_supaplex            = FALSE;
5833     setup_editor_el_diamond_caves       = FALSE;
5834     setup_editor_el_dx_boulderdash      = FALSE;
5835     setup_editor_el_mirror_magic        = FALSE;
5836     setup_editor_el_deflektor           = FALSE;
5837     setup_editor_el_chars               = FALSE;
5838     setup_editor_el_steel_chars         = FALSE;
5839   }
5840
5841   if (!setup.editor.el_custom)
5842   {
5843     setup_editor_el_custom              = FALSE;
5844   }
5845
5846   if (!setup.editor.el_user_defined)
5847   {
5848     setup_editor_el_user_defined        = FALSE;
5849   }
5850
5851   if (!setup.editor.el_dynamic)
5852   {
5853     setup_editor_el_dynamic             = FALSE;
5854   }
5855
5856   if (level.game_engine_type == GAME_ENGINE_TYPE_RND)
5857   {
5858     setup_editor_el_mirror_magic        = FALSE;
5859     setup_editor_el_deflektor           = FALSE;
5860   }
5861   else if (level.game_engine_type == GAME_ENGINE_TYPE_EM)
5862   {
5863     setup_editor_el_boulderdash         = FALSE;
5864     setup_editor_el_more                = FALSE;
5865     setup_editor_el_sokoban             = FALSE;
5866     setup_editor_el_supaplex            = FALSE;
5867     setup_editor_el_diamond_caves       = FALSE;
5868     setup_editor_el_dx_boulderdash      = FALSE;
5869     setup_editor_el_mirror_magic        = FALSE;
5870     setup_editor_el_deflektor           = FALSE;
5871     setup_editor_el_steel_chars         = FALSE;
5872
5873     setup_editor_el_custom              = FALSE;
5874   }
5875   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
5876   {
5877     setup_editor_el_players             = FALSE;
5878     setup_editor_el_boulderdash         = FALSE;
5879     setup_editor_el_emerald_mine        = FALSE;
5880     setup_editor_el_emerald_mine_club   = FALSE;
5881     setup_editor_el_more                = FALSE;
5882     setup_editor_el_sokoban             = FALSE;
5883     setup_editor_el_diamond_caves       = FALSE;
5884     setup_editor_el_dx_boulderdash      = FALSE;
5885     setup_editor_el_mirror_magic        = FALSE;
5886     setup_editor_el_deflektor           = FALSE;
5887     setup_editor_el_chars               = FALSE;
5888     setup_editor_el_steel_chars         = FALSE;
5889
5890     setup_editor_el_custom              = FALSE;
5891   }
5892   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
5893   {
5894     setup_editor_el_players             = FALSE;
5895     setup_editor_el_boulderdash         = FALSE;
5896     setup_editor_el_emerald_mine        = FALSE;
5897     setup_editor_el_emerald_mine_club   = FALSE;
5898     setup_editor_el_more                = FALSE;
5899     setup_editor_el_sokoban             = FALSE;
5900     setup_editor_el_supaplex            = FALSE;
5901     setup_editor_el_diamond_caves       = FALSE;
5902     setup_editor_el_dx_boulderdash      = FALSE;
5903     setup_editor_el_steel_chars         = FALSE;
5904
5905     setup_editor_el_custom              = FALSE;
5906   }
5907 }
5908
5909 static void ReinitializeElementList(void)
5910 {
5911   static boolean initialization_needed = TRUE;
5912   int pos = 0;
5913   int i, j;
5914
5915   ReinitializeElementList_EnableSections();
5916
5917   if (initialization_needed)
5918   {
5919     LoadSetup_EditorCascade();          // load last editor cascade state
5920
5921     // initialize editor cascade element from saved cascade state
5922     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5923     {
5924       int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
5925       boolean cascade_value = *editor_elements_info[i].setup_cascade_value;
5926
5927       if (IS_EDITOR_CASCADE(*cascade_element))
5928         *cascade_element =
5929           (cascade_value ? EL_CASCADE_ACTIVE(*cascade_element) :
5930            EL_CASCADE_INACTIVE(*cascade_element));
5931     }
5932
5933     initialization_needed = FALSE;
5934   }
5935
5936   checked_free(editor_elements);
5937
5938   // reload optional user defined element list for each invocation of editor
5939   LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
5940                                    &num_editor_el_user_defined);
5941
5942   // initialize dynamic level element list for each invocation of editor
5943   InitDynamicEditorElementList(&editor_el_dynamic_ptr,
5944                                &num_editor_el_dynamic);
5945
5946   // initialize list of empty elements (used for padding, if needed)
5947   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
5948     editor_el_empty[i] = EL_EMPTY;
5949
5950   // do some sanity checks for each element from element list
5951   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5952   {
5953     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
5954     {
5955       int element = (*editor_elements_info[i].element_list)[j];
5956
5957       if (element >= NUM_FILE_ELEMENTS)
5958         Warn("editor element %d is runtime element", element);
5959
5960       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
5961         Warn("no element description text for element %d", element);
5962     }
5963   }
5964
5965   num_editor_elements = 0;
5966   use_el_empty = FALSE;
5967
5968   // determine size of element list
5969   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5970   {
5971     if (*editor_elements_info[i].setup_value)
5972     {
5973       boolean found_inactive_cascade = FALSE;
5974
5975       if (setup.editor.el_headlines)
5976       {
5977         // required for correct padding of palette headline buttons
5978         if (*editor_elements_info[i].headline_list_size > 0)
5979           num_editor_elements += ED_ELEMENTLIST_COLS;
5980
5981         for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
5982         {
5983           int element = (*editor_elements_info[i].headline_list)[j];
5984
5985           if (IS_EDITOR_CASCADE_INACTIVE(element))
5986             found_inactive_cascade = TRUE;
5987         }
5988       }
5989
5990       if (found_inactive_cascade)
5991         continue;
5992
5993       // required for correct padding of palette element buttons
5994       int element_list_size = *editor_elements_info[i].element_list_size;
5995       int element_rows =
5996         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
5997       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
5998
5999       num_editor_elements += element_buttons;
6000     }
6001   }
6002
6003   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
6004   {
6005     // offer at least as many elements as element buttons exist
6006     use_el_empty = TRUE;
6007     num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS - num_editor_elements;
6008
6009     num_editor_elements += num_editor_el_empty;
6010   }
6011   else
6012   {
6013     num_editor_el_empty = 0;
6014   }
6015
6016   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
6017
6018   // fill element list
6019   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6020   {
6021     boolean found_inactive_cascade = FALSE;
6022
6023     if (*editor_elements_info[i].setup_value)
6024     {
6025       if (setup.editor.el_headlines)
6026       {
6027         // required for correct padding of palette headline buttons
6028         int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
6029                              ED_ELEMENTLIST_COLS : 0);
6030
6031         for (j = 0; j < headline_size; j++)
6032         {
6033           // use empty elements for padding of palette headline buttons
6034           int element = (j < *editor_elements_info[i].headline_list_size ?
6035                          (*editor_elements_info[i].headline_list)[j] :
6036                          editor_el_empty[0]);
6037
6038           editor_elements[pos++] = element;
6039
6040           if (IS_EDITOR_CASCADE_INACTIVE(element))
6041             found_inactive_cascade = TRUE;
6042         }
6043       }
6044
6045       if (found_inactive_cascade)
6046         continue;
6047
6048       // required for correct padding of palette element buttons
6049       int element_list_size = *editor_elements_info[i].element_list_size;
6050       int element_rows =
6051         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6052       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6053
6054       // copy all elements from element list
6055       for (j = 0; j < element_list_size; j++)
6056         editor_elements[pos++] = (*editor_elements_info[i].element_list)[j];
6057
6058       // use empty elements for padding of palette element buttons
6059       for (j = 0; j < element_buttons - element_list_size; j++)
6060         editor_elements[pos++] = editor_el_empty[0];
6061     }
6062   }
6063
6064   // (this function is also called before editor gadgets are initialized!)
6065   AdjustElementListScrollbar();
6066 }
6067
6068 void PrintEditorElementList(void)
6069 {
6070   boolean *stop = &setup_editor_el_user_defined;
6071   int i, j;
6072
6073   for (i = 0; editor_elements_info[i].setup_value != stop; i++)
6074   {
6075     int cascade_element = (*editor_elements_info[i].headline_list)[0];
6076
6077     if (IS_EDITOR_CASCADE(cascade_element))
6078     {
6079       int cascade_element_show = EL_CASCADE_INACTIVE(cascade_element);
6080       char *headline = element_info[cascade_element_show].editor_description;
6081
6082       PrintLineWithPrefix("# ", "-", 77);
6083       Print("# %s\n", headline);
6084       PrintLineWithPrefix("# ", "-", 77);
6085     }
6086
6087     for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6088     {
6089       int element = (*editor_elements_info[i].headline_list)[j];
6090
6091       if (IS_EDITOR_CASCADE(element))
6092         element = EL_CHAR_MINUS;
6093
6094       Print("# %s\n", element_info[element].token_name);
6095     }
6096
6097     if (j > 0)
6098       Print("#\n");
6099
6100     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6101     {
6102       int element = (*editor_elements_info[i].element_list)[j];
6103
6104       Print("# %s\n", element_info[element].token_name);
6105     }
6106
6107     if (j > 0)
6108       Print("#\n");
6109   }
6110 }
6111
6112 static void ReinitializeElementListButtons(void)
6113 {
6114   static boolean last_setup_value_headlines = FALSE;
6115   static boolean initialization_needed = TRUE;
6116   int i;
6117
6118   if (!initialization_needed)   // check if editor element setup has changed
6119   {
6120     if (last_setup_value_headlines != setup.editor.el_headlines)
6121       initialization_needed = TRUE;
6122
6123     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6124       if (editor_elements_info[i].last_setup_value !=
6125           *editor_elements_info[i].setup_value)
6126         initialization_needed = TRUE;
6127   }
6128
6129   if (!initialization_needed)
6130     return;
6131
6132   FreeLevelEditorGadgets();
6133   CreateLevelEditorGadgets();
6134
6135   // store current setup values for next invocation of this function
6136   last_setup_value_headlines = setup.editor.el_headlines;
6137   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6138     editor_elements_info[i].last_setup_value =
6139       *editor_elements_info[i].setup_value;
6140
6141   initialization_needed = FALSE;
6142 }
6143
6144 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
6145                               boolean input)
6146 {
6147   int border_graphic =
6148     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
6149   struct GraphicInfo *g = &graphic_info[border_graphic];
6150   Bitmap *src_bitmap = g->bitmap;
6151   int src_x = g->src_x;
6152   int src_y = g->src_y;
6153   int border_size = g->border_size;
6154   int border_xpos = g->width  - border_size;
6155   int border_ypos = g->height - border_size;
6156   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
6157   int i;
6158
6159   BlitBitmap(src_bitmap, drawto, src_x, src_y,
6160              border_size, border_size,
6161              dest_x - border_size, dest_y - border_size);
6162   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y,
6163              border_size, border_size,
6164              dest_x + width, dest_y - border_size);
6165   BlitBitmap(src_bitmap, drawto, src_x, src_y + border_ypos,
6166              border_size, border_size,
6167              dest_x - border_size, dest_y + height);
6168   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_ypos,
6169              border_size, border_size,
6170              dest_x + width, dest_y + height);
6171
6172   for (i = 0; i < width / tilesize; i++)
6173   {
6174     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y,
6175                tilesize, border_size,
6176                dest_x + i * tilesize, dest_y - border_size);
6177     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y + border_ypos,
6178                tilesize, border_size,
6179                dest_x + i * tilesize, dest_y + height);
6180   }
6181
6182   for (i = 0; i < height / tilesize; i++)
6183   {
6184     BlitBitmap(src_bitmap, drawto, src_x, src_y + border_size,
6185                border_size, tilesize,
6186                dest_x - border_size, dest_y + i * tilesize);
6187     BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_size,
6188                border_size, tilesize,
6189                dest_x + width, dest_y + i * tilesize);
6190   }
6191
6192   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
6193 }
6194
6195 static void DrawEditorLevelBorderLine(int x, int y, int xsize, int ysize)
6196 {
6197   int xsize_tile = MAX(ed_tilesize, xsize);
6198   int ysize_tile = MAX(ed_tilesize, ysize);
6199   int xsize_full = xsize + 1;
6200   int ysize_full = ysize + 1;
6201   int xsize_thin = (xsize < ed_tilesize ? 1 : xsize);
6202   int ysize_thin = (ysize < ed_tilesize ? 1 : ysize);
6203   Pixel line_color = getTabulatorBarColor();
6204
6205   if (line_color == BLACK_PIXEL)                // black => transparent
6206     return;
6207
6208   FillRectangle(drawto, SX + x, SY + y, xsize_tile, ysize_tile, BLACK_PIXEL);
6209   FillRectangle(drawto, SX + x, SY + y, xsize_full, ysize_full, line_color);
6210   FillRectangle(drawto, SX + x, SY + y, xsize_thin, ysize_thin, BLACK_PIXEL);
6211 }
6212
6213 static void DrawEditorLevelBorderLinesIfNeeded(void)
6214 {
6215   int xsize = lev_fieldx * ed_tilesize;
6216   int ysize = lev_fieldy * ed_tilesize;
6217   int line_size = getTabulatorBarHeight();
6218
6219   if (!suppressBorderElement())
6220     return;
6221
6222   // draw little border line around editable level playfield
6223
6224   if (xsize < SXSIZE)
6225     DrawEditorLevelBorderLine(xsize, 0, line_size, ysize);
6226
6227   if (ysize < SYSIZE)
6228     DrawEditorLevelBorderLine(0, ysize, xsize, line_size);
6229
6230   if (xsize < SXSIZE && ysize < SYSIZE)
6231     DrawEditorLevelBorderLine(xsize, ysize, line_size, line_size);
6232 }
6233
6234 static void DrawEditorElement(int x, int y, int element)
6235 {
6236   DrawSizedElement(x, y, element, ed_tilesize);
6237 }
6238
6239 static void DrawEditorElementThruMask(int x, int y, int element)
6240 {
6241   DrawSizedElementThruMask(x, y, element, ed_tilesize);
6242 }
6243
6244 static void DrawEditorElementOrWall(int x, int y, int scroll_x, int scroll_y)
6245 {
6246   DrawSizedElementOrWall(x, y, scroll_x, scroll_y, ed_tilesize);
6247 }
6248
6249 static void DrawEditorLevel(int size_x, int size_y, int scroll_x, int scroll_y)
6250 {
6251   DrawSizedLevel(size_x, size_y, scroll_x, scroll_y, ed_tilesize);
6252   DrawEditorLevelBorderLinesIfNeeded();
6253 }
6254
6255 static void DrawDrawingArea(int id)
6256 {
6257   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
6258   int x, y;
6259
6260   int *value = drawingarea_info[id].value;
6261   int area_xsize = drawingarea_info[id].area_xsize;
6262   int area_ysize = drawingarea_info[id].area_ysize;
6263   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
6264
6265   for (x = 0; x < area_xsize; x++)
6266     for (y = 0; y < area_ysize; y++)
6267       DrawSizedGraphicExt(drawto,
6268                           gi->x + x * tilesize,
6269                           gi->y + y * tilesize,
6270                           el2edimg(value[x * area_ysize + y]), 0, tilesize);
6271 }
6272
6273 static void ScrollEditorLevel(int from_x, int from_y, int scroll)
6274 {
6275   int x, y;
6276   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
6277   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
6278
6279   BlitBitmap(drawto, drawto,
6280              SX + (dx == -1 ? ed_tilesize : 0),
6281              SY + (dy == -1 ? ed_tilesize : 0),
6282              (ed_fieldx * ed_tilesize) - (dx != 0 ? ed_tilesize : 0),
6283              (ed_fieldy * ed_tilesize) - (dy != 0 ? ed_tilesize : 0),
6284              SX + (dx == +1 ? ed_tilesize : 0),
6285              SY + (dy == +1 ? ed_tilesize : 0));
6286
6287   if (dx)
6288   {
6289     x = (dx == 1 ? 0 : ed_fieldx - 1);
6290     for (y = 0; y < ed_fieldy; y++)
6291       DrawEditorElementOrWall(x, y, from_x, from_y);
6292   }
6293   else if (dy)
6294   {
6295     y = (dy == 1 ? 0 : ed_fieldy - 1);
6296     for (x = 0; x < ed_fieldx; x++)
6297       DrawEditorElementOrWall(x, y, from_x, from_y);
6298   }
6299
6300   redraw_mask |= REDRAW_FIELD;
6301   BackToFront();
6302 }
6303
6304 static void getEditorGraphicSource(int element, int tile_size, Bitmap **bitmap,
6305                                    int *x, int *y)
6306 {
6307   getSizedGraphicSource(el2edimg(element), 0, tile_size, bitmap, x, y);
6308 }
6309
6310 static void CreateControlButtons(void)
6311 {
6312   struct GadgetInfo *gi;
6313   int i;
6314
6315   // create toolbox buttons
6316   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
6317   {
6318     int id = controlbutton_info[i].gadget_id;
6319     int type = controlbutton_info[i].gadget_type;
6320     int graphic = controlbutton_info[i].graphic;
6321     struct XYTileSize *pos = controlbutton_info[i].pos;
6322     struct GraphicInfo *gd = &graphic_info[graphic];
6323     Bitmap *deco_bitmap = NULL;
6324     int deco_x = 0, deco_y = 0, deco_xpos = 0, deco_ypos = 0;
6325     int tile_size = 0, deco_shift = 0;
6326     boolean deco_masked = FALSE;
6327     int gd_x1 = gd->src_x;
6328     int gd_y1 = gd->src_y;
6329     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6330     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6331     int gd_x1a = gd->src_x + gd->active_xoffset;
6332     int gd_y1a = gd->src_y + gd->active_yoffset;
6333     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
6334     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
6335     int x = pos->x;
6336     int y = pos->y;
6337     unsigned int event_mask;
6338     int radio_button_nr = RADIO_NR_NONE;
6339     boolean checked = FALSE;
6340
6341     if (type == GD_TYPE_RADIO_BUTTON)
6342     {
6343       event_mask = GD_EVENT_PRESSED;
6344       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
6345
6346       if (id == drawing_function)
6347         checked = TRUE;
6348     }
6349     else
6350     {
6351       if (id == GADGET_ID_WRAP_LEFT ||
6352           id == GADGET_ID_WRAP_RIGHT ||
6353           id == GADGET_ID_WRAP_UP ||
6354           id == GADGET_ID_WRAP_DOWN)
6355         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
6356       else
6357         event_mask = GD_EVENT_RELEASED;
6358     }
6359
6360     if (id == GADGET_ID_PROPERTIES ||
6361         id == GADGET_ID_PALETTE)
6362     {
6363       x += DX;
6364       y += DY;
6365     }
6366     else if (id == GADGET_ID_ELEMENT_LEFT ||
6367              id == GADGET_ID_ELEMENT_MIDDLE ||
6368              id == GADGET_ID_ELEMENT_RIGHT)
6369     {
6370       x += DX;
6371       y += DY;
6372
6373       int element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
6374                      id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
6375                      id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 : EL_EMPTY);
6376
6377       tile_size = BUTTON_TILE_SIZE(id == GADGET_ID_ELEMENT_LEFT ?
6378                                    editor.button.element_left.tile_size :
6379                                    id == GADGET_ID_ELEMENT_MIDDLE ?
6380                                    editor.button.element_middle.tile_size :
6381                                    id == GADGET_ID_ELEMENT_RIGHT ?
6382                                    editor.button.element_right.tile_size : 0);
6383
6384       // make sure that decoration does not overlap gadget border
6385       tile_size = MIN(tile_size, MIN(gd->width, gd->height));
6386
6387       getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x,&deco_y);
6388
6389       deco_xpos = (gd->width  - tile_size) / 2;
6390       deco_ypos = (gd->height - tile_size) / 2;
6391       deco_shift = 1;
6392       deco_masked = gd->draw_masked;
6393     }
6394     else
6395     {
6396       x += EX;
6397       y += EY;
6398     }
6399
6400     gi = CreateGadget(GDI_CUSTOM_ID, id,
6401                       GDI_CUSTOM_TYPE_ID, i,
6402                       GDI_IMAGE_ID, graphic,
6403                       GDI_INFO_TEXT, controlbutton_info[i].infotext,
6404                       GDI_X, x,
6405                       GDI_Y, y,
6406                       GDI_WIDTH, gd->width,
6407                       GDI_HEIGHT, gd->height,
6408                       GDI_TYPE, type,
6409                       GDI_STATE, GD_BUTTON_UNPRESSED,
6410                       GDI_RADIO_NR, radio_button_nr,
6411                       GDI_CHECKED, checked,
6412                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6413                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6414                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
6415                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
6416                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
6417                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
6418                       GDI_DECORATION_SIZE, tile_size, tile_size,
6419                       GDI_DECORATION_SHIFTING, deco_shift, deco_shift,
6420                       GDI_DECORATION_MASKED, deco_masked,
6421                       GDI_EVENT_MASK, event_mask,
6422                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6423                       GDI_CALLBACK_ACTION, HandleControlButtons,
6424                       GDI_END);
6425
6426     if (gi == NULL)
6427       Fail("cannot create gadget");
6428
6429     level_editor_gadget[id] = gi;
6430   }
6431
6432   // these values are not constant, but can change at runtime
6433   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].x    = ED_SCROLL_UP_XPOS;
6434   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].y    = ED_SCROLL_UP_YPOS;
6435   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].x  = ED_SCROLL_DOWN_XPOS;
6436   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].y  = ED_SCROLL_DOWN_YPOS;
6437   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].x  = ED_SCROLL_LEFT_XPOS;
6438   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].y  = ED_SCROLL_LEFT_YPOS;
6439   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].x = ED_SCROLL_RIGHT_XPOS;
6440   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].y = ED_SCROLL_RIGHT_YPOS;
6441   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].x    = ED_SCROLL2_UP_XPOS;
6442   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].y    = ED_SCROLL2_UP_YPOS;
6443   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].x  = ED_SCROLL2_DOWN_XPOS;
6444   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].y  = ED_SCROLL2_DOWN_YPOS;
6445
6446   // create buttons for scrolling of drawing area and element list
6447   for (i = 0; i < ED_NUM_SCROLLBUTTONS; i++)
6448   {
6449     int id = scrollbutton_info[i].gadget_id;
6450     int graphic = scrollbutton_info[i].graphic;
6451     struct GraphicInfo *gd = &graphic_info[graphic];
6452     Bitmap *gd_bitmap = gd->bitmap;
6453     int gd_x1 = gd->src_x;
6454     int gd_y1 = gd->src_y;
6455     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6456     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6457     int width  = gd->width;
6458     int height = gd->height;
6459     int x = scrollbutton_pos[i].x;
6460     int y = scrollbutton_pos[i].y;
6461     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
6462
6463     if (id == GADGET_ID_SCROLL_LIST_UP ||
6464         id == GADGET_ID_SCROLL_LIST_DOWN)
6465     {
6466       x += PX;
6467       y += PY;
6468     }
6469     else
6470     {
6471       x += SX;
6472       y += SY;
6473     }
6474
6475     gi = CreateGadget(GDI_CUSTOM_ID, id,
6476                       GDI_CUSTOM_TYPE_ID, i,
6477                       GDI_IMAGE_ID, graphic,
6478                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
6479                       GDI_X, x,
6480                       GDI_Y, y,
6481                       GDI_WIDTH, width,
6482                       GDI_HEIGHT, height,
6483                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
6484                       GDI_STATE, GD_BUTTON_UNPRESSED,
6485                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
6486                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
6487                       GDI_EVENT_MASK, event_mask,
6488                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6489                       GDI_CALLBACK_ACTION, HandleControlButtons,
6490                       GDI_END);
6491
6492     if (gi == NULL)
6493       Fail("cannot create gadget");
6494
6495     level_editor_gadget[id] = gi;
6496   }
6497
6498   // create buttons for element list
6499   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
6500   {
6501     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
6502     int graphic = IMG_EDITOR_PALETTE_BUTTON;
6503     struct GraphicInfo *gd = &graphic_info[graphic];
6504     Bitmap *gd_bitmap = gd->bitmap;
6505     Bitmap *deco_bitmap;
6506     int deco_x, deco_y, deco_xpos, deco_ypos;
6507     int gd_x1 = gd->src_x;
6508     int gd_y1 = gd->src_y;
6509     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6510     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6511     int xx = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
6512     int yy = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
6513     int x = PX + ED_ELEMENTLIST_XPOS + xx * gd->width;
6514     int y = PY + ED_ELEMENTLIST_YPOS + yy * gd->height;
6515     int element = editor_elements[i];
6516     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
6517     unsigned int event_mask = GD_EVENT_RELEASED;
6518
6519     getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
6520
6521     deco_xpos = (gd->width  - tile_size) / 2;
6522     deco_ypos = (gd->height - tile_size) / 2;
6523
6524     gi = CreateGadget(GDI_CUSTOM_ID, id,
6525                       GDI_CUSTOM_TYPE_ID, i,
6526                       GDI_IMAGE_ID, graphic,
6527                       GDI_INFO_TEXT, getElementInfoText(element),
6528                       GDI_X, x,
6529                       GDI_Y, y,
6530                       GDI_WIDTH, gd->width,
6531                       GDI_HEIGHT, gd->height,
6532                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
6533                       GDI_STATE, GD_BUTTON_UNPRESSED,
6534                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
6535                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
6536                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
6537                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
6538                       GDI_DECORATION_SIZE, tile_size, tile_size,
6539                       GDI_DECORATION_SHIFTING, 1, 1,
6540                       GDI_EVENT_MASK, event_mask,
6541                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6542                       GDI_CALLBACK_ACTION, HandleControlButtons,
6543                       GDI_END);
6544
6545     if (gi == NULL)
6546       Fail("cannot create gadget");
6547
6548     level_editor_gadget[id] = gi;
6549   }
6550 }
6551
6552 static void CreateCounterButtons(void)
6553 {
6554   int max_infotext_len = getMaxInfoTextLength();
6555   int i;
6556
6557   for (i = 0; i < ED_NUM_COUNTERBUTTONS; i++)
6558   {
6559     int j;
6560     int x = SX + ED_SETTINGS_X(counterbutton_info[i].x); // down count button
6561     int y = SY + ED_SETTINGS_Y(counterbutton_info[i].y);
6562
6563     // determine horizontal position to the right of specified gadget
6564     if (counterbutton_info[i].gadget_id_align != GADGET_ID_NONE)
6565       x = (right_gadget_border[counterbutton_info[i].gadget_id_align] +
6566            ED_GADGET_TEXT_DISTANCE);
6567
6568     // determine horizontal offset for leading text
6569     if (counterbutton_info[i].text_left != NULL)
6570       x += getTextWidthForGadget(counterbutton_info[i].text_left);
6571
6572     for (j = 0; j < 2; j++)
6573     {
6574       struct GadgetInfo *gi;
6575       int id = (j == 0 ?
6576                 counterbutton_info[i].gadget_id_down :
6577                 counterbutton_info[i].gadget_id_up);
6578       int graphic;
6579       struct GraphicInfo *gd;
6580       int gd_x1, gd_x2, gd_y1, gd_y2;
6581       unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
6582       char infotext[max_infotext_len + 1];
6583
6584       if (i == ED_COUNTER_ID_SELECT_LEVEL)
6585       {
6586         graphic = (j == 0 ?
6587                    IMG_GFX_EDITOR_BUTTON_PREV_LEVEL :
6588                    IMG_GFX_EDITOR_BUTTON_NEXT_LEVEL);
6589
6590         event_mask |= GD_EVENT_RELEASED;
6591
6592         if (j == 0)
6593         {
6594           x = DX + editor.button.prev_level.x;
6595           y = DY + editor.button.prev_level.y;
6596         }
6597         else
6598         {
6599           x = DX + editor.button.next_level.x;
6600           y = DY + editor.button.next_level.y;
6601         }
6602       }
6603       else
6604       {
6605         graphic = (j == 0 ?
6606                    IMG_EDITOR_COUNTER_DOWN :
6607                    IMG_EDITOR_COUNTER_UP);
6608       }
6609
6610       gd = &graphic_info[graphic];
6611
6612       gd_x1 = gd->src_x;
6613       gd_y1 = gd->src_y;
6614       gd_x2 = gd->src_x + gd->pressed_xoffset;
6615       gd_y2 = gd->src_y + gd->pressed_yoffset;
6616
6617       sprintf(infotext, "%s counter value by 1, 5 or 10",
6618               (j == 0 ? "decrease" : "increase"));
6619
6620       gi = CreateGadget(GDI_CUSTOM_ID, id,
6621                         GDI_CUSTOM_TYPE_ID, i,
6622                         GDI_IMAGE_ID, graphic,
6623                         GDI_INFO_TEXT, infotext,
6624                         GDI_X, x,
6625                         GDI_Y, y,
6626                         GDI_WIDTH, gd->width,
6627                         GDI_HEIGHT, gd->height,
6628                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
6629                         GDI_STATE, GD_BUTTON_UNPRESSED,
6630                         GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6631                         GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6632                         GDI_EVENT_MASK, event_mask,
6633                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6634                         GDI_CALLBACK_ACTION, HandleCounterButtons,
6635                         GDI_END);
6636
6637       if (gi == NULL)
6638         Fail("cannot create gadget");
6639
6640       level_editor_gadget[id] = gi;
6641       right_gadget_border[id] =
6642         getRightGadgetBorder(gi, counterbutton_info[i].text_right);
6643
6644       x += gi->width + ED_GADGET_SMALL_DISTANCE;        // text count button
6645
6646       if (j == 0)
6647       {
6648         int font_type = FONT_INPUT_1;
6649         int font_type_active = FONT_INPUT_1_ACTIVE;
6650
6651         id = counterbutton_info[i].gadget_id_text;
6652
6653         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6654
6655         if (i == ED_COUNTER_ID_SELECT_LEVEL)
6656         {
6657           graphic = IMG_GFX_EDITOR_INPUT_LEVEL_NUMBER;
6658
6659           font_type = FONT_LEVEL_NUMBER;
6660           font_type_active = FONT_LEVEL_NUMBER_ACTIVE;
6661
6662           x = DX + editor.input.level_number.x;
6663           y = DY + editor.input.level_number.y;
6664         }
6665         else
6666         {
6667           graphic = IMG_EDITOR_COUNTER_INPUT;
6668         }
6669
6670         gd = &graphic_info[graphic];
6671
6672         gd_x1 = gd->src_x;
6673         gd_y1 = gd->src_y;
6674         gd_x2 = gd->src_x + gd->active_xoffset;
6675         gd_y2 = gd->src_y + gd->active_yoffset;
6676
6677         gi = CreateGadget(GDI_CUSTOM_ID, id,
6678                           GDI_CUSTOM_TYPE_ID, i,
6679                           GDI_IMAGE_ID, graphic,
6680                           GDI_INFO_TEXT, "enter counter value",
6681                           GDI_X, x,
6682                           GDI_Y, y,
6683                           GDI_TYPE, GD_TYPE_TEXT_INPUT_NUMERIC,
6684                           GDI_NUMBER_VALUE, 0,
6685                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
6686                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
6687                           GDI_TEXT_SIZE, 3,     // minimal counter text size
6688                           GDI_TEXT_FONT, font_type,
6689                           GDI_TEXT_FONT_ACTIVE, font_type_active,
6690                           GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6691                           GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6692                           GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6693                           GDI_DESIGN_WIDTH, gd->width,
6694                           GDI_EVENT_MASK, event_mask,
6695                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6696                           GDI_CALLBACK_ACTION, HandleCounterButtons,
6697                           GDI_END);
6698
6699         if (gi == NULL)
6700           Fail("cannot create gadget");
6701
6702         level_editor_gadget[id] = gi;
6703         right_gadget_border[id] =
6704           getRightGadgetBorder(gi, counterbutton_info[i].text_right);
6705
6706         x += gi->width + ED_GADGET_SMALL_DISTANCE;      // up count button
6707       }
6708     }
6709   }
6710 }
6711
6712 static void CreateDrawingAreas(void)
6713 {
6714   int i;
6715
6716   // these values are not constant, but can change at runtime
6717   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_xsize = MAX_ED_FIELDX;
6718   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_ysize = MAX_ED_FIELDY;
6719
6720   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
6721   {
6722     struct GadgetInfo *gi;
6723     int id = drawingarea_info[i].gadget_id;
6724     int x = SX + ED_AREA_SETTINGS_X(drawingarea_info[i]);
6725     int y = SY + ED_AREA_SETTINGS_Y(drawingarea_info[i]);
6726     int area_xsize = drawingarea_info[i].area_xsize;
6727     int area_ysize = drawingarea_info[i].area_ysize;
6728     int item_size = (id == GADGET_ID_DRAWING_LEVEL ?
6729                      ed_tilesize : ED_DRAWINGAREA_TILE_SIZE);
6730     unsigned int event_mask =
6731       GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
6732       GD_EVENT_OFF_BORDERS | GD_EVENT_PIXEL_PRECISE;
6733
6734     // determine horizontal position to the right of specified gadget
6735     if (drawingarea_info[i].gadget_id_align != GADGET_ID_NONE)
6736       x = (right_gadget_border[drawingarea_info[i].gadget_id_align] +
6737            ED_DRAWINGAREA_TEXT_DISTANCE);
6738
6739     // determine horizontal offset for leading text
6740     if (drawingarea_info[i].text_left != NULL)
6741       x += getTextWidthForDrawingArea(drawingarea_info[i].text_left);
6742
6743     gi = CreateGadget(GDI_CUSTOM_ID, id,
6744                       GDI_CUSTOM_TYPE_ID, i,
6745                       GDI_X, x,
6746                       GDI_Y, y,
6747                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
6748                       GDI_AREA_SIZE, area_xsize, area_ysize,
6749                       GDI_ITEM_SIZE, item_size, item_size,
6750                       GDI_EVENT_MASK, event_mask,
6751                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
6752                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
6753                       GDI_END);
6754
6755     if (gi == NULL)
6756       Fail("cannot create gadget");
6757
6758     level_editor_gadget[id] = gi;
6759     right_gadget_border[id] =
6760       getRightGadgetBorder(gi, drawingarea_info[i].text_right);
6761   }
6762 }
6763
6764 static void CreateTextInputGadgets(void)
6765 {
6766   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
6767   int max_infotext_len = getMaxInfoTextLength();
6768   int i;
6769
6770   for (i = 0; i < ED_NUM_TEXTINPUT; i++)
6771   {
6772     int gd_x1 = gd->src_x;
6773     int gd_y1 = gd->src_y;
6774     int gd_x2 = gd->src_x + gd->active_xoffset;
6775     int gd_y2 = gd->src_y + gd->active_yoffset;
6776     struct GadgetInfo *gi;
6777     unsigned int event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6778     char infotext[MAX_OUTPUT_LINESIZE + 1];
6779     int id = textinput_info[i].gadget_id;
6780     int x, y;
6781
6782     if (i == ED_TEXTINPUT_ID_ELEMENT_NAME)
6783     {
6784       int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
6785       int border_size = gd->border_size;
6786       int font_nr = FONT_INPUT_1;
6787       int font_height = getFontHeight(font_nr);
6788       int xoffset = element_border + TILEX + element_border + 3 * border_size;
6789       int yoffset = element_border + (TILEY - font_height) / 2;
6790
6791       x = (editor.settings.element_name.x != -1 ?
6792            editor.settings.element_name.x :
6793            editor.settings.element_graphic.x + xoffset) - border_size;
6794       y = (editor.settings.element_name.y != -1 ?
6795            editor.settings.element_name.y :
6796            editor.settings.element_graphic.y + yoffset) - border_size;
6797     }
6798     else
6799     {
6800       x = ED_SETTINGS_X(textinput_info[i].x);
6801       y = ED_SETTINGS_Y(textinput_info[i].y);
6802     }
6803
6804     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
6805     infotext[max_infotext_len] = '\0';
6806
6807     gi = CreateGadget(GDI_CUSTOM_ID, id,
6808                       GDI_CUSTOM_TYPE_ID, i,
6809                       GDI_INFO_TEXT, infotext,
6810                       GDI_X, SX + x,
6811                       GDI_Y, SY + y,
6812                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
6813                       GDI_TEXT_VALUE, textinput_info[i].value,
6814                       GDI_TEXT_SIZE, textinput_info[i].size,
6815                       GDI_TEXT_FONT, FONT_INPUT_1,
6816                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6817                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6818                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6819                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6820                       GDI_DESIGN_WIDTH, gd->width,
6821                       GDI_EVENT_MASK, event_mask,
6822                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6823                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
6824                       GDI_END);
6825
6826     if (gi == NULL)
6827       Fail("cannot create gadget");
6828
6829     level_editor_gadget[id] = gi;
6830   }
6831 }
6832
6833 static void CreateTextAreaGadgets(void)
6834 {
6835   int max_infotext_len = getMaxInfoTextLength();
6836   int i;
6837
6838   for (i = 0; i < ED_NUM_TEXTAREAS; i++)
6839   {
6840     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXTAREA];
6841     int gd_x1 = gd->src_x;
6842     int gd_y1 = gd->src_y;
6843     int gd_x2 = gd->src_x + gd->active_xoffset;
6844     int gd_y2 = gd->src_y + gd->active_yoffset;
6845     struct GadgetInfo *gi;
6846     unsigned int event_mask = GD_EVENT_TEXT_LEAVING;
6847     char infotext[MAX_OUTPUT_LINESIZE + 1];
6848     int id = textarea_info[i].gadget_id;
6849     int area_xsize = textarea_info[i].xsize;
6850     int area_ysize = textarea_info[i].ysize;
6851
6852     sprintf(infotext, "Enter %s", textarea_info[i].infotext);
6853     infotext[max_infotext_len] = '\0';
6854
6855     gi = CreateGadget(GDI_CUSTOM_ID, id,
6856                       GDI_CUSTOM_TYPE_ID, i,
6857                       GDI_INFO_TEXT, infotext,
6858                       GDI_X, SX + ED_SETTINGS_X(textarea_info[i].x),
6859                       GDI_Y, SY + ED_SETTINGS_Y(textarea_info[i].y),
6860                       GDI_TYPE, GD_TYPE_TEXT_AREA,
6861                       GDI_AREA_SIZE, area_xsize, area_ysize,
6862                       GDI_TEXT_FONT, FONT_INPUT_1,
6863                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6864                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6865                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6866                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6867                       GDI_DESIGN_WIDTH, gd->width,
6868                       GDI_EVENT_MASK, event_mask,
6869                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6870                       GDI_CALLBACK_ACTION, HandleTextAreaGadgets,
6871                       GDI_END);
6872
6873     if (gi == NULL)
6874       Fail("cannot create gadget");
6875
6876     level_editor_gadget[id] = gi;
6877   }
6878 }
6879
6880 static void CreateSelectboxGadgets(void)
6881 {
6882   int max_infotext_len = getMaxInfoTextLength();
6883   int i, j;
6884
6885   for (i = 0; i < ED_NUM_SELECTBOX; i++)
6886   {
6887     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_SELECTBOX_INPUT];
6888     struct GraphicInfo *gd2 = &graphic_info[IMG_EDITOR_SELECTBOX_BUTTON];
6889     int gd_x1 = gd->src_x;
6890     int gd_y1 = gd->src_y;
6891     int gd_x2 = gd->src_x + gd->active_xoffset;
6892     int gd_y2 = gd->src_y + gd->active_yoffset;
6893     int selectbox_button_xsize = gd2->width;
6894     struct GadgetInfo *gi;
6895     char infotext[MAX_OUTPUT_LINESIZE + 1];
6896     int id = selectbox_info[i].gadget_id;
6897     int x = SX + ED_SETTINGS_X(selectbox_info[i].x);
6898     int y = SY + ED_SETTINGS_Y(selectbox_info[i].y);
6899     unsigned int event_mask =
6900       GD_EVENT_RELEASED | GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6901
6902     if (selectbox_info[i].size == -1)   // dynamically determine size
6903     {
6904       // (we cannot use -1 for uninitialized values if we directly compare
6905       // with results from strlen(), because the '<' and '>' operation will
6906       // implicitely cast -1 to an unsigned integer value!)
6907       selectbox_info[i].size = 0;
6908
6909       for (j = 0; selectbox_info[i].options[j].text != NULL; j++)
6910         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
6911           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
6912
6913       selectbox_info[i].size++;         // add one character empty space
6914     }
6915
6916     // determine horizontal position to the right of specified gadget
6917     if (selectbox_info[i].gadget_id_align != GADGET_ID_NONE)
6918       x = (right_gadget_border[selectbox_info[i].gadget_id_align] +
6919            ED_GADGET_TEXT_DISTANCE);
6920
6921     // determine horizontal offset for leading text
6922     if (selectbox_info[i].text_left != NULL)
6923       x += getTextWidthForGadget(selectbox_info[i].text_left);
6924
6925     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
6926     infotext[max_infotext_len] = '\0';
6927
6928     gi = CreateGadget(GDI_CUSTOM_ID, id,
6929                       GDI_CUSTOM_TYPE_ID, i,
6930                       GDI_INFO_TEXT, infotext,
6931                       GDI_X, x,
6932                       GDI_Y, y,
6933                       GDI_TYPE, GD_TYPE_SELECTBOX,
6934                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
6935                       GDI_SELECTBOX_CHAR_UNSELECTABLE, '[',
6936                       GDI_TEXT_SIZE, selectbox_info[i].size,
6937                       GDI_TEXT_FONT, FONT_INPUT_1,
6938                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6939                       GDI_TEXT_FONT_UNSELECTABLE, FONT_TEXT_1,
6940                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6941                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6942                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6943                       GDI_BORDER_SIZE_SELECTBUTTON, selectbox_button_xsize,
6944                       GDI_DESIGN_WIDTH, gd->width,
6945                       GDI_EVENT_MASK, event_mask,
6946                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6947                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
6948                       GDI_END);
6949
6950     if (gi == NULL)
6951       Fail("cannot create gadget");
6952
6953     level_editor_gadget[id] = gi;
6954     right_gadget_border[id] =
6955       getRightGadgetBorder(gi, selectbox_info[i].text_right);
6956   }
6957 }
6958
6959 static void CreateTextbuttonGadgets(void)
6960 {
6961   int max_infotext_len = getMaxInfoTextLength();
6962   int i;
6963
6964   for (i = 0; i < ED_NUM_TEXTBUTTONS; i++)
6965   {
6966     int id = textbutton_info[i].gadget_id;
6967     int is_tab_button =
6968       ((id >= GADGET_ID_LEVELCONFIG_LEVEL && id <= GADGET_ID_LEVELCONFIG_EDITOR) ||
6969        (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_CHANGE));
6970     int graphic =
6971       (is_tab_button ? IMG_EDITOR_TABBUTTON : IMG_EDITOR_TEXTBUTTON);
6972     int gadget_distance =
6973       (is_tab_button ? ED_GADGET_SMALL_DISTANCE : ED_GADGET_TEXT_DISTANCE);
6974     struct GraphicInfo *gd = &graphic_info[graphic];
6975     int gd_x1 = gd->src_x;
6976     int gd_y1 = gd->src_y;
6977     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6978     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6979     int gd_x1a = gd->src_x + gd->active_xoffset;
6980     int gd_y1a = gd->src_y + gd->active_yoffset;
6981     int border_xsize = gd->border_size + gd->draw_xoffset;
6982     int border_ysize = gd->border_size;
6983     struct GadgetInfo *gi;
6984     unsigned int event_mask = GD_EVENT_RELEASED;
6985     char infotext[MAX_OUTPUT_LINESIZE + 1];
6986     int x = SX + ED_SETTINGS_X(textbutton_info[i].x);
6987     int y = SY + ED_SETTINGS_Y(textbutton_info[i].y);
6988
6989     if (textbutton_info[i].size == -1)  // dynamically determine size
6990       textbutton_info[i].size = strlen(textbutton_info[i].text);
6991
6992     sprintf(infotext, "%s", textbutton_info[i].infotext);
6993     infotext[max_infotext_len] = '\0';
6994
6995     // determine horizontal position to the right of specified gadget
6996     if (textbutton_info[i].gadget_id_align != GADGET_ID_NONE)
6997     {
6998       int gadget_id_align = textbutton_info[i].gadget_id_align;
6999
7000       x = right_gadget_border[gadget_id_align] + gadget_distance;
7001
7002       if (textbutton_info[i].y == -1)
7003         y = level_editor_gadget[gadget_id_align]->y;
7004     }
7005
7006     // determine horizontal offset for leading text
7007     if (textbutton_info[i].text_left != NULL)
7008       x += getTextWidthForGadget(textbutton_info[i].text_left);
7009
7010     gi = CreateGadget(GDI_CUSTOM_ID, id,
7011                       GDI_CUSTOM_TYPE_ID, i,
7012                       GDI_IMAGE_ID, graphic,
7013                       GDI_INFO_TEXT, infotext,
7014                       GDI_X, x,
7015                       GDI_Y, y,
7016                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
7017                       GDI_TEXT_VALUE, textbutton_info[i].text,
7018                       GDI_TEXT_SIZE, textbutton_info[i].size,
7019                       GDI_TEXT_FONT, FONT_INPUT_2,
7020                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2_ACTIVE,
7021                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7022                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7023                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7024                       GDI_BORDER_SIZE, border_xsize, border_ysize,
7025                       GDI_DESIGN_WIDTH, gd->width,
7026                       GDI_DECORATION_SHIFTING, 1, 1,
7027                       GDI_EVENT_MASK, event_mask,
7028                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7029                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
7030                       GDI_END);
7031
7032     if (gi == NULL)
7033       Fail("cannot create gadget");
7034
7035     level_editor_gadget[id] = gi;
7036     right_gadget_border[id] =
7037       getRightGadgetBorder(gi, textbutton_info[i].text_right);
7038   }
7039 }
7040
7041 static void CreateGraphicbuttonGadgets(void)
7042 {
7043   struct GadgetInfo *gi;
7044   int i;
7045
7046   // create buttons for scrolling of drawing area and element list
7047   for (i = 0; i < ED_NUM_GRAPHICBUTTONS; i++)
7048   {
7049     int id = graphicbutton_info[i].gadget_id;
7050     int x = SX + ED_SETTINGS_X(graphicbutton_info[i].x);
7051     int y = SY + ED_SETTINGS_Y(graphicbutton_info[i].y);
7052     int graphic = graphicbutton_info[i].graphic;
7053     struct GraphicInfo *gd = &graphic_info[graphic];
7054     int gd_x1 = gd->src_x;
7055     int gd_y1 = gd->src_y;
7056     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7057     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7058     unsigned int event_mask = GD_EVENT_RELEASED;
7059
7060     // determine horizontal position to the right of specified gadget
7061     if (graphicbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7062       x = (right_gadget_border[graphicbutton_info[i].gadget_id_align] +
7063            ED_GADGET_TEXT_DISTANCE);
7064
7065     // determine horizontal offset for leading text
7066     if (graphicbutton_info[i].text_left != NULL)
7067       x += getTextWidthForGadget(graphicbutton_info[i].text_left);
7068
7069     gi = CreateGadget(GDI_CUSTOM_ID, id,
7070                       GDI_CUSTOM_TYPE_ID, i,
7071                       GDI_IMAGE_ID, graphic,
7072                       GDI_INFO_TEXT, graphicbutton_info[i].infotext,
7073                       GDI_X, x,
7074                       GDI_Y, y,
7075                       GDI_WIDTH, gd->width,
7076                       GDI_HEIGHT, gd->height,
7077                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7078                       GDI_STATE, GD_BUTTON_UNPRESSED,
7079                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7080                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7081                       GDI_EVENT_MASK, event_mask,
7082                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7083                       GDI_CALLBACK_ACTION, HandleGraphicbuttonGadgets,
7084                       GDI_END);
7085
7086     if (gi == NULL)
7087       Fail("cannot create gadget");
7088
7089     level_editor_gadget[id] = gi;
7090     right_gadget_border[id] =
7091       getRightGadgetBorder(gi, graphicbutton_info[i].text_right);
7092   }
7093 }
7094
7095 static void CreateScrollbarGadgets(void)
7096 {
7097   int i;
7098
7099   // these values are not constant, but can change at runtime
7100   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].x =
7101     SX + ED_SCROLL_HORIZONTAL_XPOS;
7102   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].y =
7103     SY + ED_SCROLL_HORIZONTAL_YPOS;
7104   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width =
7105     ED_SCROLL_HORIZONTAL_XSIZE;
7106   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].height =
7107     ED_SCROLL_HORIZONTAL_YSIZE;
7108   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_x      = SX;
7109   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_y      = SY;
7110   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_width  = SXSIZE;
7111   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_height = SYSIZE;
7112
7113   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].x =
7114     SX + ED_SCROLL_VERTICAL_XPOS;
7115   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].y =
7116     SY + ED_SCROLL_VERTICAL_YPOS;
7117   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].width =
7118     ED_SCROLL_VERTICAL_XSIZE;
7119   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].height =
7120     ED_SCROLL_VERTICAL_YSIZE;
7121   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_x      = SX;
7122   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_y      = SY;
7123   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_width  = SXSIZE;
7124   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_height = SYSIZE;
7125
7126   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].x =
7127     PX + ED_SCROLL2_VERTICAL_XPOS;
7128   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].y =
7129     PY + ED_SCROLL2_VERTICAL_YPOS;
7130   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].width =
7131     ED_SCROLL2_VERTICAL_XSIZE;
7132   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].height =
7133     ED_SCROLL2_VERTICAL_YSIZE;
7134   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_x = PX;
7135   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_y = PY;
7136   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_width  = PXSIZE;
7137   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_height = PYSIZE;
7138
7139   for (i = 0; i < ED_NUM_SCROLLBARS; i++)
7140   {
7141     int id = scrollbar_info[i].gadget_id;
7142     int graphic = scrollbar_info[i].graphic;
7143     struct GraphicInfo *gd = &graphic_info[graphic];
7144     int gd_x1 = gd->src_x;
7145     int gd_y1 = gd->src_y;
7146     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7147     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7148     struct GadgetInfo *gi;
7149     int items_max, items_visible, item_position;
7150     unsigned int event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
7151
7152     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
7153     {
7154       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
7155       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
7156       item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
7157     }
7158     else        // drawing area scrollbars
7159     {
7160       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
7161       {
7162         items_max = MAX(lev_fieldx + 2, ed_fieldx);
7163         items_visible = ed_fieldx;
7164         item_position = 0;
7165       }
7166       else
7167       {
7168         items_max = MAX(lev_fieldy + 2, ed_fieldy);
7169         items_visible = ed_fieldy;
7170         item_position = 0;
7171       }
7172     }
7173
7174     gi = CreateGadget(GDI_CUSTOM_ID, id,
7175                       GDI_CUSTOM_TYPE_ID, i,
7176                       GDI_IMAGE_ID, graphic,
7177                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
7178                       GDI_X, scrollbar_pos[i].x,
7179                       GDI_Y, scrollbar_pos[i].y,
7180                       GDI_WIDTH, scrollbar_pos[i].width,
7181                       GDI_HEIGHT, scrollbar_pos[i].height,
7182                       GDI_TYPE, scrollbar_info[i].type,
7183                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
7184                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
7185                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
7186                       GDI_WHEEL_AREA_X, scrollbar_pos[i].wheel_x,
7187                       GDI_WHEEL_AREA_Y, scrollbar_pos[i].wheel_y,
7188                       GDI_WHEEL_AREA_WIDTH, scrollbar_pos[i].wheel_width,
7189                       GDI_WHEEL_AREA_HEIGHT, scrollbar_pos[i].wheel_height,
7190                       GDI_STATE, GD_BUTTON_UNPRESSED,
7191                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7192                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7193                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7194                       GDI_EVENT_MASK, event_mask,
7195                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7196                       GDI_CALLBACK_ACTION, HandleControlButtons,
7197                       GDI_END);
7198
7199     if (gi == NULL)
7200       Fail("cannot create gadget");
7201
7202     level_editor_gadget[id] = gi;
7203   }
7204 }
7205
7206 static void CreateCheckbuttonGadgets(void)
7207 {
7208   struct GadgetInfo *gi;
7209   int i;
7210
7211   for (i = 0; i < ED_NUM_CHECKBUTTONS; i++)
7212   {
7213     int id = checkbutton_info[i].gadget_id;
7214     int graphic = (id == GADGET_ID_STICK_ELEMENT ? IMG_EDITOR_STICKYBUTTON :
7215                    IMG_EDITOR_CHECKBOX);
7216     struct GraphicInfo *gd = &graphic_info[graphic];
7217     int gd_x1 = gd->src_x;
7218     int gd_y1 = gd->src_y;
7219     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7220     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7221     int gd_x1a = gd->src_x + gd->active_xoffset;
7222     int gd_y1a = gd->src_y + gd->active_yoffset;
7223     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7224     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7225     int x = SX + ED_SETTINGS_X(checkbutton_info[i].x);
7226     int y = SY + ED_SETTINGS_Y(checkbutton_info[i].y);
7227     unsigned int event_mask = GD_EVENT_PRESSED;
7228
7229     // determine horizontal position to the right of specified gadget
7230     if (checkbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7231       x = (right_gadget_border[checkbutton_info[i].gadget_id_align] +
7232            ED_GADGET_TEXT_DISTANCE);
7233
7234     // determine horizontal offset for leading text
7235     if (checkbutton_info[i].text_left != NULL)
7236       x += getTextWidthForGadget(checkbutton_info[i].text_left);
7237
7238     gi = CreateGadget(GDI_CUSTOM_ID, id,
7239                       GDI_CUSTOM_TYPE_ID, i,
7240                       GDI_IMAGE_ID, graphic,
7241                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
7242                       GDI_X, x,
7243                       GDI_Y, y,
7244                       GDI_WIDTH, gd->width,
7245                       GDI_HEIGHT, gd->height,
7246                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
7247                       GDI_CHECKED, *checkbutton_info[i].value,
7248                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7249                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7250                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7251                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7252                       GDI_EVENT_MASK, event_mask,
7253                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7254                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
7255                       GDI_END);
7256
7257     if (gi == NULL)
7258       Fail("cannot create gadget");
7259
7260     level_editor_gadget[id] = gi;
7261     right_gadget_border[id] =
7262       getRightGadgetBorder(gi, checkbutton_info[i].text_right);
7263   }
7264 }
7265
7266 static void CreateRadiobuttonGadgets(void)
7267 {
7268   int graphic = IMG_EDITOR_RADIOBUTTON;
7269   struct GraphicInfo *gd = &graphic_info[graphic];
7270   int gd_x1 = gd->src_x;
7271   int gd_y1 = gd->src_y;
7272   int gd_x2 = gd->src_x + gd->pressed_xoffset;
7273   int gd_y2 = gd->src_y + gd->pressed_yoffset;
7274   int gd_x1a = gd->src_x + gd->active_xoffset;
7275   int gd_y1a = gd->src_y + gd->active_yoffset;
7276   int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7277   int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7278   struct GadgetInfo *gi;
7279   int i;
7280
7281   for (i = 0; i < ED_NUM_RADIOBUTTONS; i++)
7282   {
7283     int id = radiobutton_info[i].gadget_id;
7284     int x = SX + ED_SETTINGS_X(radiobutton_info[i].x);
7285     int y = SY + ED_SETTINGS_Y(radiobutton_info[i].y);
7286     unsigned int event_mask = GD_EVENT_PRESSED;
7287
7288     int checked =
7289       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
7290
7291     // determine horizontal position to the right of specified gadget
7292     if (radiobutton_info[i].gadget_id_align != GADGET_ID_NONE)
7293       x = (right_gadget_border[radiobutton_info[i].gadget_id_align] +
7294            ED_GADGET_TEXT_DISTANCE);
7295
7296     // determine horizontal offset for leading text
7297     if (radiobutton_info[i].text_left != NULL)
7298       x += getTextWidthForGadget(radiobutton_info[i].text_left);
7299
7300     gi = CreateGadget(GDI_CUSTOM_ID, id,
7301                       GDI_CUSTOM_TYPE_ID, i,
7302                       GDI_IMAGE_ID, graphic,
7303                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
7304                       GDI_X, x,
7305                       GDI_Y, y,
7306                       GDI_WIDTH, gd->width,
7307                       GDI_HEIGHT, gd->height,
7308                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
7309                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
7310                       GDI_CHECKED, checked,
7311                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7312                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7313                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7314                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7315                       GDI_EVENT_MASK, event_mask,
7316                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7317                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
7318                       GDI_END);
7319
7320     if (gi == NULL)
7321       Fail("cannot create gadget");
7322
7323     level_editor_gadget[id] = gi;
7324     right_gadget_border[id] =
7325       getRightGadgetBorder(gi, radiobutton_info[i].text_right);
7326   }
7327 }
7328
7329 void CreateLevelEditorGadgets(void)
7330 {
7331   // force EDITOR font inside level editor
7332   SetFontStatus(GAME_MODE_EDITOR);
7333
7334   // these values are not constant, but can change at runtime
7335   ed_fieldx = MAX_ED_FIELDX - 1;
7336   ed_fieldy = MAX_ED_FIELDY - 1;
7337
7338   num_editor_gadgets = NUM_EDITOR_GADGETS;
7339
7340   // Debug("editor", "allocating %d gadgets ...\n", num_editor_gadgets);
7341
7342   level_editor_gadget =
7343     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
7344   right_gadget_border =
7345     checked_calloc(num_editor_gadgets * sizeof(int));
7346
7347   // set number of empty (padding) element buttons to maximum number of buttons
7348   num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS;
7349
7350   editor_el_empty = checked_calloc(num_editor_el_empty * sizeof(int));
7351   editor_el_empty_ptr = editor_el_empty;
7352
7353   use_permanent_palette = !editor.palette.show_as_separate_screen;
7354
7355   InitGadgetScreenBorders(-1, INFOTEXT_YPOS);
7356
7357   ReinitializeElementList();
7358
7359   CreateControlButtons();
7360   CreateScrollbarGadgets();
7361
7362   // order of function calls is important because of cross-references
7363   CreateCheckbuttonGadgets();
7364   CreateCounterButtons();
7365   CreateRadiobuttonGadgets();
7366   CreateTextInputGadgets();
7367   CreateTextAreaGadgets();
7368   CreateSelectboxGadgets();
7369   CreateGraphicbuttonGadgets();
7370   CreateTextbuttonGadgets();
7371   CreateDrawingAreas();
7372
7373   ResetFontStatus();
7374 }
7375
7376 void FreeLevelEditorGadgets(void)
7377 {
7378   int i;
7379
7380   // Debug("editor", "freeing %d gadgets ...\n", num_editor_gadgets);
7381
7382   for (i = 0; i < num_editor_gadgets; i++)
7383   {
7384     FreeGadget(level_editor_gadget[i]);
7385
7386     level_editor_gadget[i] = NULL;
7387   }
7388
7389   checked_free(level_editor_gadget);
7390   checked_free(right_gadget_border);
7391
7392   checked_free(editor_el_empty);
7393 }
7394
7395 static void MapCounterButtons(int id)
7396 {
7397   int font_nr = FONT_TEXT_1;
7398   int font_height = getFontHeight(font_nr);
7399   int gadget_id_down = counterbutton_info[id].gadget_id_down;
7400   int gadget_id_text = counterbutton_info[id].gadget_id_text;
7401   int gadget_id_up   = counterbutton_info[id].gadget_id_up;
7402   struct GadgetInfo *gi_down = level_editor_gadget[gadget_id_down];
7403   struct GadgetInfo *gi_text = level_editor_gadget[gadget_id_text];
7404   struct GadgetInfo *gi_up   = level_editor_gadget[gadget_id_up];
7405   int xoffset_left = getTextWidthForGadget(counterbutton_info[id].text_left);
7406   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7407   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7408   int yoffset = (gi_down->height - font_height) / 2;
7409   int x_left = gi_down->x - xoffset_left;
7410   int x_right;  // set after gadget position was modified
7411   int y_above = gi_down->y - yoffset_above;
7412   int x = gi_down->x;
7413   int y;        // set after gadget position was modified
7414
7415   // counter limits must be changed first to prevent value truncation
7416   ModifyEditorCounterLimits(id, counterbutton_info[id].min_value,
7417                             counterbutton_info[id].max_value);
7418
7419   // right text position might have changed after setting position above
7420   x_right = gi_up->x + gi_up->width + xoffset_right;
7421
7422   ModifyEditorCounterValue(id, *counterbutton_info[id].value);
7423
7424   // set position for "value[1,2,3,4]" counter gadgets (score in most cases)
7425   if (id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
7426       id <= ED_COUNTER_ID_ELEMENT_VALUE4)
7427   {
7428     ModifyGadget(gi_down, GDI_Y,
7429                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
7430     ModifyGadget(gi_text, GDI_Y,
7431                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
7432     ModifyGadget(gi_up,   GDI_Y,
7433                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
7434   }
7435
7436   // vertical position might have changed after setting position above
7437   y = gi_up->y + yoffset;
7438
7439   if (counterbutton_info[id].text_above)
7440     DrawText(x, y_above, counterbutton_info[id].text_above, font_nr);
7441
7442   if (counterbutton_info[id].text_left)
7443     DrawText(x_left, y, counterbutton_info[id].text_left, font_nr);
7444
7445   if (counterbutton_info[id].text_right)
7446     DrawText(x_right, y, counterbutton_info[id].text_right, font_nr);
7447
7448   MapGadget(gi_down);
7449   MapGadget(gi_text);
7450   MapGadget(gi_up);
7451 }
7452
7453 static void MapControlButtons(void)
7454 {
7455   int counter_id;
7456   int i;
7457
7458   // map toolbox buttons (excluding special CE toolbox buttons)
7459   for (i = 0; i < ED_NUM_CTRL1_2_BUTTONS; i++)
7460     MapGadget(level_editor_gadget[i]);
7461
7462   // map toolbox buttons (element properties buttons)
7463   for (i = ED_NUM_CTRL1_4_BUTTONS; i < ED_NUM_CTRL1_7_BUTTONS; i++)
7464     MapGadget(level_editor_gadget[i]);
7465
7466   if (use_permanent_palette)
7467   {
7468     // map buttons to select elements
7469     for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7470       MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
7471     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
7472     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
7473     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
7474   }
7475
7476   // map buttons to select level
7477   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
7478   counterbutton_info[counter_id].min_value = leveldir_current->first_level;
7479   counterbutton_info[counter_id].max_value = leveldir_current->last_level;
7480   MapCounterButtons(counter_id);
7481 }
7482
7483 static void MapDrawingArea(int id)
7484 {
7485   int font_nr = FONT_TEXT_1;
7486   int font_height = getFontHeight(font_nr);
7487   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
7488   int area_xsize = gi->drawing.area_xsize;
7489   int area_ysize = gi->drawing.area_ysize;
7490   int xoffset_left = getTextWidthForDrawingArea(drawingarea_info[id].text_left);
7491   int xoffset_below = getTextWidth(drawingarea_info[id].text_below, font_nr);
7492   int x_left  = gi->x - xoffset_left;
7493   int x_right = gi->x + gi->width + ED_DRAWINGAREA_TEXT_DISTANCE;
7494   int x_above = gi->x - ED_DRAWINGAREA_BORDER_SIZE;
7495   int x_below = gi->x + (gi->width - xoffset_below) / 2;
7496   int y_side  = gi->y + (gi->height - font_height) / 2;
7497   int y_above = gi->y - font_height - ED_DRAWINGAREA_TEXT_DISTANCE;
7498   int y_below = gi->y + gi->height + ED_DRAWINGAREA_TEXT_DISTANCE;
7499
7500   if (drawingarea_info[id].text_left)
7501     DrawText(x_left, y_side, drawingarea_info[id].text_left, font_nr);
7502
7503   if (drawingarea_info[id].text_right)
7504     DrawText(x_right, y_side, drawingarea_info[id].text_right, font_nr);
7505
7506   if (drawingarea_info[id].text_above)
7507     DrawText(x_above, y_above, drawingarea_info[id].text_above, font_nr);
7508
7509   if (drawingarea_info[id].text_below)
7510     DrawText(x_below, y_below, drawingarea_info[id].text_below, font_nr);
7511
7512   if (id != ED_DRAWING_ID_DRAWING_LEVEL)
7513   {
7514     DrawElementBorder(gi->x, gi->y,
7515                       area_xsize * ED_DRAWINGAREA_TILE_SIZE,
7516                       area_ysize * ED_DRAWINGAREA_TILE_SIZE, TRUE);
7517
7518     DrawDrawingArea(id);
7519   }
7520
7521   MapGadget(gi);
7522 }
7523
7524 static void MapTextInputGadget(int id)
7525 {
7526   int font_nr = FONT_TEXT_1;
7527   int font_height = getFontHeight(font_nr);
7528   struct GadgetInfo *gi = level_editor_gadget[textinput_info[id].gadget_id];
7529   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7530   int x_above = ED_SETTINGS_X(textinput_info[id].x);
7531   int y_above = ED_SETTINGS_Y(textinput_info[id].y) - yoffset_above;
7532
7533   if (textinput_info[id].text_above)
7534     DrawTextS(x_above, y_above, font_nr, textinput_info[id].text_above);
7535
7536   ModifyGadget(gi, GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
7537
7538   MapGadget(gi);
7539 }
7540
7541 static void MapTextAreaGadget(int id)
7542 {
7543   int font_nr = FONT_TEXT_1;
7544   int font_height = getFontHeight(font_nr);
7545   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
7546   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7547   int x_above = ED_SETTINGS_X(textarea_info[id].x);
7548   int y_above = ED_SETTINGS_Y(textarea_info[id].y) - yoffset_above;
7549   char *text_above = textarea_info[id].text_above;
7550
7551   if (gi->textarea.cropped && textarea_info[id].text_above_cropped)
7552     text_above = textarea_info[id].text_above_cropped;
7553
7554   if (text_above)
7555     DrawTextS(x_above, y_above, font_nr, text_above);
7556
7557   ModifyGadget(gi, GDI_TEXT_VALUE, textarea_info[id].value, GDI_END);
7558
7559   MapGadget(gi);
7560 }
7561
7562 static void MapSelectboxGadget(int id)
7563 {
7564   int font_nr = FONT_TEXT_1;
7565   int font_height = getFontHeight(font_nr);
7566   struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
7567   int xoffset_left = getTextWidthForGadget(selectbox_info[id].text_left);
7568   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7569   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7570   int yoffset = (gi->height - font_height) / 2;
7571   int x_left = gi->x - xoffset_left;
7572   int x_right = gi->x + gi->width + xoffset_right;
7573   int y_above = gi->y - yoffset_above;
7574   int x = gi->x;
7575   int y = gi->y + yoffset;
7576
7577   if (selectbox_info[id].text_above)
7578     DrawText(x, y_above, selectbox_info[id].text_above, font_nr);
7579
7580   if (selectbox_info[id].text_left)
7581     DrawText(x_left, y, selectbox_info[id].text_left, font_nr);
7582
7583   if (selectbox_info[id].text_right)
7584     DrawText(x_right, y, selectbox_info[id].text_right, font_nr);
7585
7586   ModifyEditorSelectboxValue(id, *selectbox_info[id].value);
7587
7588   MapGadget(gi);
7589 }
7590
7591 static void MapTextbuttonGadget(int id)
7592 {
7593   int font_nr = FONT_TEXT_1;
7594   int font_height = getFontHeight(font_nr);
7595   struct GadgetInfo *gi = level_editor_gadget[textbutton_info[id].gadget_id];
7596   int xoffset_left = getTextWidthForGadget(textbutton_info[id].text_left);
7597   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7598   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7599   int yoffset = (gi->height - font_height) / 2;
7600   int x_left = gi->x - xoffset_left;
7601   int x_right = gi->x + gi->width + xoffset_right;
7602   int y_above = gi->y - yoffset_above;
7603   int x = gi->x;
7604   int y = gi->y + yoffset;
7605
7606   // only show button to delete change pages when more than minimum pages
7607   if (id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
7608       custom_element.num_change_pages == MIN_CHANGE_PAGES)
7609     return;
7610
7611   if (textbutton_info[id].text_above)
7612     DrawText(x, y_above, textbutton_info[id].text_above, font_nr);
7613
7614   if (textbutton_info[id].text_left)
7615     DrawText(x_left, y, textbutton_info[id].text_left, font_nr);
7616
7617   if (textbutton_info[id].text_right)
7618     DrawText(x_right, y, textbutton_info[id].text_right, font_nr);
7619
7620   MapGadget(gi);
7621 }
7622
7623 static void MapGraphicbuttonGadget(int id)
7624 {
7625   int font_nr = FONT_TEXT_1;
7626   int font_height = getFontHeight(font_nr);
7627   struct GadgetInfo *gi= level_editor_gadget[graphicbutton_info[id].gadget_id];
7628   int xoffset_left = getTextWidthForGadget(graphicbutton_info[id].text_left);
7629   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7630   int yoffset = (gi->height - font_height) / 2;
7631   int x_left = gi->x - xoffset_left;
7632   int x_right = gi->x + gi->width + xoffset_right;
7633   int y = gi->y + yoffset;
7634
7635   if (graphicbutton_info[id].text_left)
7636     DrawText(x_left, y, graphicbutton_info[id].text_left, font_nr);
7637
7638   if (graphicbutton_info[id].text_right)
7639     DrawText(x_right, y, graphicbutton_info[id].text_right, font_nr);
7640
7641   MapGadget(gi);
7642 }
7643
7644 static void MapRadiobuttonGadget(int id)
7645 {
7646   int font_nr = FONT_TEXT_1;
7647   int font_height = getFontHeight(font_nr);
7648   struct GadgetInfo *gi = level_editor_gadget[radiobutton_info[id].gadget_id];
7649   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
7650   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7651   int yoffset = (gi->height - font_height) / 2;
7652   int x_left = gi->x - xoffset_left;
7653   int x_right = gi->x + gi->width + xoffset_right;
7654   int y = gi->y + yoffset;
7655   boolean checked =
7656     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
7657
7658   if (radiobutton_info[id].text_left)
7659     DrawText(x_left, y, radiobutton_info[id].text_left, font_nr);
7660
7661   if (radiobutton_info[id].text_right)
7662     DrawText(x_right, y, radiobutton_info[id].text_right, font_nr);
7663
7664   ModifyGadget(gi, GDI_CHECKED, checked, GDI_END);
7665
7666   MapGadget(gi);
7667 }
7668
7669 static void MapCheckbuttonGadget(int id)
7670 {
7671   int font_nr = FONT_TEXT_1;
7672   int font_height = getFontHeight(font_nr);
7673   struct GadgetInfo *gi = level_editor_gadget[checkbutton_info[id].gadget_id];
7674   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
7675   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7676   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7677   int yoffset = (gi->height - font_height) / 2;
7678   int y_above = gi->y - yoffset_above;
7679   int x = gi->x;
7680   int x_left, x_right, y;       // set after gadget position was modified
7681
7682   // set position for gadgets with dynamically determined position
7683   if (checkbutton_info[id].x != -1)     // do not change dynamic positions
7684     ModifyGadget(gi, GDI_X, SX + ED_SETTINGS_X(checkbutton_info[id].x), GDI_END);
7685   ModifyGadget(gi, GDI_Y, SY + ED_SETTINGS_Y(checkbutton_info[id].y), GDI_END);
7686
7687   x_left = gi->x - xoffset_left;
7688   x_right = gi->x + gi->width + xoffset_right;
7689   y = gi->y + yoffset;
7690
7691   if (checkbutton_info[id].text_above)
7692     DrawText(x, y_above, checkbutton_info[id].text_above, font_nr);
7693
7694   if (checkbutton_info[id].text_left)
7695     DrawText(x_left, y, checkbutton_info[id].text_left, font_nr);
7696
7697   if (checkbutton_info[id].text_right)
7698     DrawText(x_right, y, checkbutton_info[id].text_right, font_nr);
7699
7700   ModifyGadget(gi, GDI_CHECKED, *checkbutton_info[id].value, GDI_END);
7701
7702   MapGadget(gi);
7703 }
7704
7705 static void MapMainDrawingArea(void)
7706 {
7707   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
7708   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
7709   int i;
7710
7711   if (suppressBorderElement())
7712   {
7713     no_horizontal_scrollbar = (lev_fieldx <= ed_fieldx);
7714     no_vertical_scrollbar   = (lev_fieldy <= ed_fieldy);
7715   }
7716
7717   for (i=ED_SCROLLBUTTON_ID_AREA_FIRST; i <= ED_SCROLLBUTTON_ID_AREA_LAST; i++)
7718   {
7719     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
7720           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
7721          no_horizontal_scrollbar) ||
7722         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
7723           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
7724          no_vertical_scrollbar))
7725       continue;
7726
7727     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
7728   }
7729
7730   for (i = ED_SCROLLBAR_ID_AREA_FIRST; i <= ED_SCROLLBAR_ID_AREA_LAST; i++)
7731   {
7732     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
7733         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
7734       continue;
7735
7736     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
7737   }
7738
7739   MapDrawingArea(ED_DRAWING_ID_DRAWING_LEVEL);
7740 }
7741
7742 static void MapOrUnmapLevelEditorToolboxCustomGadgets(boolean map)
7743 {
7744   int i;
7745
7746   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
7747   {
7748     if (i == GADGET_ID_CUSTOM_COPY_FROM ||
7749         i == GADGET_ID_CUSTOM_COPY_TO ||
7750         i == GADGET_ID_CUSTOM_EXCHANGE ||
7751         i == GADGET_ID_CUSTOM_COPY ||
7752         i == GADGET_ID_CUSTOM_PASTE)
7753     {
7754       if (map)
7755         MapGadget(level_editor_gadget[i]);
7756       else
7757         UnmapGadget(level_editor_gadget[i]);
7758     }
7759   }
7760 }
7761
7762 static void MapLevelEditorToolboxCustomGadgets(void)
7763 {
7764   MapOrUnmapLevelEditorToolboxCustomGadgets(TRUE);
7765 }
7766
7767 static void MapLevelEditorToolboxCustomGadgetsIfNeeded(void)
7768 {
7769   if (IS_CUSTOM_ELEMENT(properties_element) ||
7770       IS_GROUP_ELEMENT(properties_element) ||
7771       IS_EMPTY_ELEMENT(properties_element))
7772     MapLevelEditorToolboxCustomGadgets();
7773 }
7774
7775 static void UnmapLevelEditorToolboxCustomGadgets(void)
7776 {
7777   MapOrUnmapLevelEditorToolboxCustomGadgets(FALSE);
7778 }
7779
7780 static void MapOrUnmapLevelEditorToolboxDrawingGadgets(boolean map)
7781 {
7782   int i;
7783
7784   for (i = 0; i < ED_NUM_CTRL1_BUTTONS; i++)
7785   {
7786     if (i != GADGET_ID_SINGLE_ITEMS &&
7787         i != GADGET_ID_PICK_ELEMENT)
7788     {
7789       struct GadgetInfo *gi = level_editor_gadget[i];
7790
7791       if (map)
7792       {
7793         MapGadget(gi);
7794       }
7795       else
7796       {
7797         int graphic = IMG_EDITOR_NO_TOOLBOX_BUTTON;
7798         struct GraphicInfo *gd = &graphic_info[graphic];
7799
7800         UnmapGadget(gi);
7801
7802         BlitBitmap(gd->bitmap, drawto, gd->src_x, gd->src_y,
7803                    gi->width, gi->height, gi->x, gi->y);
7804
7805         redraw_mask |= REDRAW_DOOR_3;
7806       }
7807     }
7808   }
7809 }
7810
7811 static void MapLevelEditorToolboxDrawingGadgets(void)
7812 {
7813   MapOrUnmapLevelEditorToolboxDrawingGadgets(TRUE);
7814 }
7815
7816 static void UnmapLevelEditorToolboxDrawingGadgets(void)
7817 {
7818   MapOrUnmapLevelEditorToolboxDrawingGadgets(FALSE);
7819 }
7820
7821 static void UnmapDrawingArea(int id)
7822 {
7823   UnmapGadget(level_editor_gadget[drawingarea_info[id].gadget_id]);
7824 }
7825
7826 static void UnmapLevelEditorFieldGadgets(void)
7827 {
7828   int i;
7829
7830   for (i = 0; i < num_editor_gadgets; i++)
7831     if (IN_GFX_FIELD_FULL(level_editor_gadget[i]->x,
7832                           level_editor_gadget[i]->y))
7833       UnmapGadget(level_editor_gadget[i]);
7834 }
7835
7836 void UnmapLevelEditorGadgets(void)
7837 {
7838   int i;
7839
7840   for (i = 0; i < num_editor_gadgets; i++)
7841     UnmapGadget(level_editor_gadget[i]);
7842 }
7843
7844 static void ResetUndoBuffer(void)
7845 {
7846   undo_buffer_position = -1;
7847   undo_buffer_steps = -1;
7848   redo_buffer_steps = 0;
7849
7850   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
7851
7852   level.changed = FALSE;
7853 }
7854
7855 static void DrawEditModeWindowExt(boolean remap_toolbox_gadgets)
7856 {
7857   if (remap_toolbox_gadgets)
7858   {
7859     ModifyEditorElementList();
7860     RedrawDrawingElements();
7861   }
7862
7863   if (edit_mode == ED_MODE_LEVELCONFIG)
7864     DrawLevelConfigWindow();
7865   else if (edit_mode == ED_MODE_PROPERTIES)
7866     DrawPropertiesWindow();
7867   else if (edit_mode == ED_MODE_PALETTE)
7868     DrawPaletteWindow();
7869   else  // edit_mode == ED_MODE_DRAWING
7870     DrawDrawingWindowExt(remap_toolbox_gadgets);
7871 }
7872
7873 static void DrawEditModeWindow(void)
7874 {
7875   DrawEditModeWindowExt(TRUE);
7876 }
7877
7878 static void DrawEditModeWindow_PlayfieldOnly(void)
7879 {
7880   DrawEditModeWindowExt(FALSE);
7881 }
7882
7883 static void ChangeEditModeWindow(int new_edit_mode)
7884 {
7885   edit_mode = (new_edit_mode != edit_mode ? new_edit_mode : ED_MODE_DRAWING);
7886
7887   DrawEditModeWindow();
7888 }
7889
7890 static boolean LevelChanged(void)
7891 {
7892   boolean field_changed = FALSE;
7893   int x, y;
7894
7895   for (y = 0; y < lev_fieldy; y++)
7896     for (x = 0; x < lev_fieldx; x++)
7897       if (Tile[x][y] != level.field[x][y])
7898         field_changed = TRUE;
7899
7900   return (level.changed || field_changed);
7901 }
7902
7903 static boolean PrepareSavingIntoPersonalLevelSet(void)
7904 {
7905   static LevelDirTree *last_copied_leveldir = NULL;
7906   static LevelDirTree *last_written_leveldir = NULL;
7907   static int last_copied_level_nr = -1;
7908   static int last_written_level_nr = -1;
7909   LevelDirTree *leveldir_former = leveldir_current;
7910   int level_nr_former = level_nr;
7911   int new_level_nr;
7912
7913   // remember last mod/save so that for current session, we write
7914   // back to the same personal copy, asking only about overwrite.
7915   if (leveldir_current == last_copied_leveldir &&
7916       level_nr == last_copied_level_nr)
7917   {
7918     // "cd" to personal level set dir (as used when writing last copy)
7919     leveldir_current = last_written_leveldir;
7920     level_nr = last_written_level_nr;
7921
7922     return TRUE;
7923   }
7924
7925   if (!Request("This level is read-only! "
7926                "Save into personal level set?", REQ_ASK))
7927     return FALSE;
7928
7929   // "cd" to personal level set dir (for writing copy the first time)
7930   leveldir_current =
7931     getTreeInfoFromIdentifier(leveldir_first, getLoginName());
7932
7933   // this may happen if "setup.internal.create_user_levelset" is FALSE
7934   // or if file "levelinfo.conf" is missing in personal user level set
7935   if (leveldir_current == NULL)
7936   {
7937     Request("Cannot find personal level set?!", REQ_CONFIRM);
7938
7939     leveldir_current = leveldir_former;
7940
7941     return FALSE;
7942   }
7943
7944   // find unused level number
7945   for (new_level_nr = leveldir_current->first_level; ; new_level_nr++)
7946   {
7947     static char *level_filename = NULL;
7948
7949     setString(&level_filename, getDefaultLevelFilename(new_level_nr));
7950
7951     if (!fileExists(level_filename))
7952       break;
7953   }
7954
7955   last_copied_leveldir = leveldir_former;
7956   last_copied_level_nr = level_nr_former;
7957
7958   last_written_leveldir = leveldir_current;
7959   last_written_level_nr = level_nr = new_level_nr;
7960
7961   return TRUE;
7962 }
7963
7964 static void ModifyLevelConfigForSavingIntoPersonalLevelSet(char *former_name)
7965 {
7966   static char *filename_levelinfo = NULL, *mod_name = NULL;
7967   FILE *file;
7968
7969   // annotate this copy-and-mod in personal levelinfo.conf
7970   setString(&filename_levelinfo,
7971             getPath2(getCurrentLevelDir(), LEVELINFO_FILENAME));
7972
7973   if ((file = fopen(filename_levelinfo, MODE_APPEND)))
7974   {
7975     fprintf(file, "\n");
7976     fprintf(file, "# level %d was modified from:\n", level_nr);
7977     fprintf(file, "# - previous level set name:    %s\n",
7978             former_name);
7979     fprintf(file, "# - level within previous set:  %d \"%s\"\n",
7980             level.file_info.nr, level.name);
7981     fprintf(file, "# - previous author:            %s\n",
7982             level.author);
7983     fprintf(file, "# - previous save date:         ");
7984
7985     if (level.creation_date.src == DATE_SRC_LEVELFILE)
7986     {
7987       fprintf(file, "%04d-%02d-%02d\n",
7988               level.creation_date.year,
7989               level.creation_date.month,
7990               level.creation_date.day);
7991     }
7992     else
7993     {
7994       fprintf(file, "not recorded\n");
7995     }
7996
7997     fclose(file);
7998   }
7999
8000   if (level_nr > leveldir_current->last_level)
8001     UpdateUserLevelSet(getLoginName(), NULL, NULL, level_nr + 9);
8002
8003   // else: allow the save even if annotation failed
8004
8005   // now... spray graffiti on the old level vital statistics
8006   // user can change these; just trying to set a good baseline
8007
8008   // don't truncate names for fear of making offensive or silly:
8009   // long-named original author only recorded in levelinfo.conf.
8010   // try to fit "Joe after Bob", "Joe (ed.)", then just "Joe"
8011   if (!strEqual(level.author, leveldir_current->author))
8012   {
8013     setString(&mod_name, getStringCat3(leveldir_current->author,
8014                                        " after ", level.author));
8015
8016     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8017       setString(&mod_name,
8018                 getStringCat2(leveldir_current->author, " (ed.)"));
8019
8020     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
8021       setString(&mod_name, leveldir_current->author);
8022
8023     strncpy(level.author, mod_name, MAX_LEVEL_AUTHOR_LEN);
8024
8025     // less worried about truncation here
8026     setString(&mod_name, getStringCat2("Mod: ", level.name));
8027     strncpy(level.name, mod_name, MAX_LEVEL_NAME_LEN);
8028   }
8029 }
8030
8031 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
8032                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
8033 {
8034   int x, y;
8035
8036   for (x = 0; x < lev_fieldx; x++)
8037     for (y = 0; y < lev_fieldy; y++)
8038       dst[x][y] = src[x][y];
8039 }
8040
8041 static int setSelectboxValue(int selectbox_id, int new_value)
8042 {
8043   int new_index_value = 0;
8044   int i;
8045
8046   for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
8047     if (selectbox_info[selectbox_id].options[i].value == new_value)
8048       new_index_value = i;
8049
8050   *selectbox_info[selectbox_id].value =
8051     selectbox_info[selectbox_id].options[new_index_value].value;
8052
8053   return new_index_value;
8054 }
8055
8056 static void setSelectboxSpecialActionVariablesIfNeeded(void)
8057 {
8058   int i;
8059
8060   // change action mode and arg variables according to action type variable
8061   for (i = 0; action_arg_options[i].value != -1; i++)
8062   {
8063     if (action_arg_options[i].value == custom_element_change.action_type)
8064     {
8065       int mode = action_arg_options[i].mode;
8066
8067       // only change if corresponding selectbox has changed
8068       if (selectbox_info[ED_SELECTBOX_ID_ACTION_MODE].options !=
8069           action_arg_modes[mode])
8070         custom_element_change.action_mode = -1;
8071
8072       // only change if corresponding selectbox has changed
8073       if (selectbox_info[ED_SELECTBOX_ID_ACTION_ARG].options !=
8074           action_arg_options[i].options)
8075         custom_element_change.action_arg = -1;
8076
8077       break;
8078     }
8079   }
8080 }
8081
8082 static void setSelectboxSpecialActionOptions(void)
8083 {
8084   int i;
8085
8086   // change action mode and arg selectbox according to action type selectbox
8087   for (i = 0; action_arg_options[i].value != -1; i++)
8088   {
8089     if (action_arg_options[i].value == custom_element_change.action_type)
8090     {
8091       int mode = action_arg_options[i].mode;
8092
8093       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_MODE,
8094                                    action_arg_modes[mode]);
8095       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_MODE,
8096                                  custom_element_change.action_mode);
8097
8098       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_ARG,
8099                                    action_arg_options[i].options);
8100       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_ARG,
8101                                  custom_element_change.action_arg);
8102       break;
8103     }
8104   }
8105 }
8106
8107 static void copy_custom_element_settings(int element_from, int element_to)
8108 {
8109   struct ElementInfo *ei_from = &element_info[element_from];
8110   struct ElementInfo *ei_to = &element_info[element_to];
8111
8112   copyElementInfo(ei_from, ei_to);
8113 }
8114
8115 static void replace_custom_element_in_settings(int element_from,
8116                                                int element_to)
8117 {
8118   int i, j, x, y;
8119
8120   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
8121   {
8122     struct ElementInfo *ei = &element_info[i];
8123
8124     for (y = 0; y < 3; y++)
8125       for (x = 0; x < 3; x++)
8126         if (ei->content.e[x][y] == element_from)
8127           ei->content.e[x][y] = element_to;
8128
8129     for (j = 0; j < ei->num_change_pages; j++)
8130     {
8131       struct ElementChangeInfo *change = &ei->change_page[j];
8132
8133       if (change->target_element == element_from)
8134         change->target_element = element_to;
8135
8136       if (change->initial_trigger_element == element_from)
8137         change->initial_trigger_element = element_to;
8138
8139       if (change->action_element == element_from)
8140         change->action_element = element_to;
8141
8142       for (y = 0; y < 3; y++)
8143         for (x = 0; x < 3; x++)
8144           if (change->target_content.e[x][y] == element_from)
8145             change->target_content.e[x][y] = element_to;
8146     }
8147
8148     if (ei->group != NULL)                              // group or internal
8149       for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
8150         if (ei->group->element[j] == element_from)
8151           ei->group->element[j] = element_to;
8152   }
8153 }
8154
8155 static void replace_custom_element_in_playfield(int element_from,
8156                                                 int element_to)
8157 {
8158   int x, y;
8159
8160   for (x = 0; x < lev_fieldx; x++)
8161     for (y = 0; y < lev_fieldy; y++)
8162       if (Tile[x][y] == element_from)
8163         Tile[x][y] = element_to;
8164 }
8165
8166 static boolean CopyCustomElement(int element_old, int element_new,
8167                                  int copy_mode)
8168 {
8169   int copy_mode_orig = copy_mode;
8170
8171   if (copy_mode == GADGET_ID_CUSTOM_COPY)
8172   {
8173     element_new = (IS_CUSTOM_ELEMENT(element_old) ?
8174                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
8175     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
8176   }
8177   else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
8178   {
8179     element_old = (IS_CUSTOM_ELEMENT(element_new) ?
8180                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
8181     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
8182
8183     level.changed = TRUE;
8184   }
8185   else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
8186   {
8187     Request("Please choose custom element!", REQ_CONFIRM);
8188
8189     return FALSE;
8190   }
8191   else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
8192   {
8193     Request("Please choose group element!", REQ_CONFIRM);
8194
8195     return FALSE;
8196   }
8197   else if (IS_EMPTY_ELEMENT(element_old) && !IS_EMPTY_ELEMENT(element_new))
8198   {
8199     Request("Please choose empty element!", REQ_CONFIRM);
8200
8201     return FALSE;
8202   }
8203   else
8204   {
8205     level.changed = TRUE;
8206   }
8207
8208   // when modifying custom/group element, ask for copying level template
8209   if (copy_mode_orig != GADGET_ID_CUSTOM_COPY && level.use_custom_template)
8210   {
8211     if (!AskToCopyAndModifyLevelTemplate())
8212       return FALSE;
8213   }
8214
8215   if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
8216   {
8217     copy_custom_element_settings(element_new, element_old);
8218   }
8219   else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
8220   {
8221     copy_custom_element_settings(element_old, element_new);
8222   }
8223   else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
8224   {
8225     copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
8226     copy_custom_element_settings(element_new, element_old);
8227     copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
8228
8229     replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
8230     replace_custom_element_in_settings(element_new, element_old);
8231     replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
8232
8233     replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
8234     replace_custom_element_in_playfield(element_new, element_old);
8235     replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
8236   }
8237
8238   UpdateCustomElementGraphicGadgets();
8239   DrawPropertiesWindow();
8240
8241   return TRUE;
8242 }
8243
8244 static void CopyCustomElementPropertiesToEditor(int element)
8245 {
8246   int i;
8247   int current_change_page = element_info[element].current_change_page;
8248
8249   // dynamically (re)build selectbox for selecting change page
8250   for (i = 0; i < element_info[element].num_change_pages; i++)
8251   {
8252     sprintf(options_change_page_strings[i], "%d", i + 1);
8253
8254     options_change_page[i].value = i;
8255     options_change_page[i].text = options_change_page_strings[i];
8256   }
8257
8258   options_change_page[i].value = -1;
8259   options_change_page[i].text = NULL;
8260
8261   // needed here to initialize combined element properties
8262   InitElementPropertiesEngine(level.game_version);
8263
8264   element_info[element].change =
8265     &element_info[element].change_page[current_change_page];
8266
8267   custom_element = element_info[element];
8268   custom_element_change = *element_info[element].change;
8269
8270   // needed to initially set selectbox options for special action options
8271   setSelectboxSpecialActionOptions();
8272
8273   // needed to initially set selectbox value variables to reliable defaults
8274   for (i = 0; i < ED_NUM_SELECTBOX; i++)
8275     setSelectboxValue(i, *selectbox_info[i].value);
8276
8277   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
8278     custom_element_properties[i] = HAS_PROPERTY(element, i);
8279
8280   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
8281     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
8282
8283   // ---------- element settings: configure (custom elements) -----------------
8284
8285   // set accessible layer selectbox help value
8286   custom_element.access_type =
8287     (IS_WALKABLE(element) ? EP_WALKABLE :
8288      IS_PASSABLE(element) ? EP_PASSABLE :
8289      custom_element.access_type);
8290   custom_element.access_layer =
8291     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
8292      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
8293      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
8294      custom_element.access_layer);
8295   custom_element.access_protected =
8296     (IS_PROTECTED(element) ? 1 : 0);
8297   custom_element_properties[EP_ACCESSIBLE] =
8298     (IS_ACCESSIBLE_OVER(element) ||
8299      IS_ACCESSIBLE_INSIDE(element) ||
8300      IS_ACCESSIBLE_UNDER(element));
8301
8302   // set walk-to-object action selectbox help value
8303   custom_element.walk_to_action =
8304     (IS_DIGGABLE(element) ? EP_DIGGABLE :
8305      IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
8306      IS_DROPPABLE(element) ? EP_DROPPABLE :
8307      IS_THROWABLE(element) ? EP_THROWABLE :
8308      IS_PUSHABLE(element) ? EP_PUSHABLE :
8309      custom_element.walk_to_action);
8310   custom_element_properties[EP_WALK_TO_OBJECT] =
8311     (IS_DIGGABLE(element) ||
8312      IS_COLLECTIBLE_ONLY(element) ||
8313      IS_DROPPABLE(element) ||
8314      IS_THROWABLE(element) ||
8315      IS_PUSHABLE(element));
8316
8317   // set smash targets selectbox help value
8318   custom_element.smash_targets =
8319     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
8320      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
8321      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
8322      custom_element.smash_targets);
8323   custom_element_properties[EP_CAN_SMASH] =
8324     (CAN_SMASH_EVERYTHING(element) ||
8325      CAN_SMASH_ENEMIES(element) ||
8326      CAN_SMASH_PLAYER(element));
8327
8328   // set deadliness selectbox help value
8329   custom_element.deadliness =
8330     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
8331      DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
8332      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
8333      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
8334      custom_element.deadliness);
8335   custom_element_properties[EP_DEADLY] =
8336     (DONT_TOUCH(element) ||
8337      DONT_GET_HIT_BY(element) ||
8338      DONT_COLLIDE_WITH(element) ||
8339      DONT_RUN_INTO(element));
8340
8341   // ---------- element settings: advanced (custom elements) ------------------
8342
8343   // set "change by direct action" selectbox help value
8344   custom_element_change.direct_action =
8345     (HAS_CHANGE_EVENT(element, CE_NEXT_TO_PLAYER) ? CE_NEXT_TO_PLAYER :
8346      HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
8347      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
8348      HAS_CHANGE_EVENT(element, CE_SWITCHED_BY_PLAYER) ? CE_SWITCHED_BY_PLAYER :
8349      HAS_CHANGE_EVENT(element, CE_SNAPPED_BY_PLAYER) ? CE_SNAPPED_BY_PLAYER :
8350      HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
8351      HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
8352      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
8353      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
8354      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
8355      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
8356      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
8357      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
8358      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
8359      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
8360      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES) ? CE_VALUE_CHANGES :
8361      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES) ? CE_SCORE_CHANGES :
8362      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO) ? CE_VALUE_GETS_ZERO :
8363      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO) ? CE_SCORE_GETS_ZERO :
8364      HAS_CHANGE_EVENT(element, CE_CLICKED_BY_MOUSE) ? CE_CLICKED_BY_MOUSE :
8365      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_MOUSE) ? CE_PRESSED_BY_MOUSE :
8366      custom_element_change.direct_action);
8367
8368   // set "change by other element action" selectbox help value
8369   custom_element_change.other_action =
8370     (HAS_CHANGE_EVENT(element, CE_PLAYER_NEXT_TO_X) ? CE_PLAYER_NEXT_TO_X :
8371      HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
8372      HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
8373      HAS_CHANGE_EVENT(element, CE_PLAYER_SWITCHES_X) ? CE_PLAYER_SWITCHES_X :
8374      HAS_CHANGE_EVENT(element, CE_PLAYER_SNAPS_X) ? CE_PLAYER_SNAPS_X :
8375      HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
8376      HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
8377      HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
8378      HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
8379      HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
8380      HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
8381      HAS_CHANGE_EVENT(element, CE_NEXT_TO_X) ? CE_NEXT_TO_X :
8382      HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
8383      HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
8384      HAS_CHANGE_EVENT(element, CE_DIGGING_X) ? CE_DIGGING_X :
8385      HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
8386      HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
8387      HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
8388      HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
8389      HAS_CHANGE_EVENT(element, CE_MOVE_OF_X) ? CE_MOVE_OF_X :
8390      HAS_CHANGE_EVENT(element, CE_CREATION_OF_X) ? CE_CREATION_OF_X :
8391      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES_OF_X) ? CE_VALUE_CHANGES_OF_X :
8392      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES_OF_X) ? CE_SCORE_CHANGES_OF_X :
8393      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO_OF_X) ? CE_VALUE_GETS_ZERO_OF_X :
8394      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO_OF_X) ? CE_SCORE_GETS_ZERO_OF_X :
8395      HAS_CHANGE_EVENT(element, CE_MOUSE_CLICKED_ON_X) ? CE_MOUSE_CLICKED_ON_X :
8396      HAS_CHANGE_EVENT(element, CE_MOUSE_PRESSED_ON_X) ? CE_MOUSE_PRESSED_ON_X :
8397      custom_element_change.other_action);
8398 }
8399
8400 static void CopyGroupElementPropertiesToEditor(int element)
8401 {
8402   group_element_info = *element_info[element].group;
8403   custom_element = element_info[element];       // needed for description
8404 }
8405
8406 static void CopyEmptyElementPropertiesToEditor(int element)
8407 {
8408   custom_element = element_info[element];
8409 }
8410
8411 static void CopyClassicElementPropertiesToEditor(int element)
8412 {
8413   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
8414     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
8415       getMoveIntoAcidProperty(&level, element);
8416
8417   if (MAYBE_DONT_COLLIDE_WITH(element))
8418     custom_element_properties[EP_DONT_COLLIDE_WITH] =
8419       getDontCollideWithProperty(&level, element);
8420 }
8421
8422 static void CopyElementPropertiesToEditor(int element)
8423 {
8424   if (IS_CUSTOM_ELEMENT(element))
8425     CopyCustomElementPropertiesToEditor(element);
8426   else if (IS_GROUP_ELEMENT(element))
8427     CopyGroupElementPropertiesToEditor(element);
8428   else if (IS_EMPTY_ELEMENT(element))
8429     CopyEmptyElementPropertiesToEditor(element);
8430   else
8431     CopyClassicElementPropertiesToEditor(element);
8432 }
8433
8434 static boolean AskToCopyAndModifyLevelTemplate(void)
8435 {
8436   if (Request("Copy and modify settings from level template?", REQ_ASK))
8437   {
8438     level.use_custom_template = FALSE;
8439
8440     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_1],
8441                  GDI_CHECKED, FALSE, GDI_END);
8442     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_2],
8443                  GDI_CHECKED, FALSE, GDI_END);
8444
8445     return TRUE;
8446   }
8447   else
8448   {
8449     LoadLevelTemplate(-1);      // this resets all element modifications ...
8450
8451     DrawEditModeWindow();       // ... and copies them to 'custom_element'
8452
8453     return FALSE;
8454   }
8455 }
8456
8457 static void CopyCustomElementPropertiesToGame(int element)
8458 {
8459   int i;
8460   int access_type_and_layer;
8461
8462   // mark that this custom element has been modified
8463   custom_element.modified_settings = TRUE;
8464   level.changed = TRUE;
8465
8466   if (level.use_custom_template)
8467     AskToCopyAndModifyLevelTemplate();
8468
8469   element_info[element] = custom_element;
8470   *element_info[element].change = custom_element_change;
8471
8472   // ---------- element settings: configure (custom elements) -----------------
8473
8474   // set accessible property from checkbox and selectbox
8475   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
8476   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
8477   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
8478   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
8479   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
8480   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
8481   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
8482                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
8483                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
8484   custom_element_properties[access_type_and_layer] =
8485     custom_element_properties[EP_ACCESSIBLE];
8486   custom_element_properties[EP_PROTECTED] =
8487     (custom_element.access_protected != 0 &&
8488      custom_element_properties[EP_ACCESSIBLE]);
8489
8490   // set walk-to-object property from checkbox and selectbox
8491   custom_element_properties[EP_DIGGABLE] = FALSE;
8492   custom_element_properties[EP_COLLECTIBLE_ONLY] = FALSE;
8493   custom_element_properties[EP_DROPPABLE] = FALSE;
8494   custom_element_properties[EP_THROWABLE] = FALSE;
8495   custom_element_properties[EP_PUSHABLE] = FALSE;
8496   custom_element_properties[custom_element.walk_to_action] =
8497     custom_element_properties[EP_WALK_TO_OBJECT];
8498
8499   // set smash property from checkbox and selectbox
8500   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
8501   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
8502   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
8503   custom_element_properties[custom_element.smash_targets] =
8504     custom_element_properties[EP_CAN_SMASH];
8505
8506   // set deadliness property from checkbox and selectbox
8507   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
8508   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
8509   custom_element_properties[EP_DONT_GET_HIT_BY] = FALSE;
8510   custom_element_properties[EP_DONT_TOUCH] = FALSE;
8511   custom_element_properties[custom_element.deadliness] =
8512     custom_element_properties[EP_DEADLY];
8513
8514   // ---------- element settings: advanced (custom elements) ------------------
8515
8516   // set player change event from checkbox and selectbox
8517   custom_element_change_events[CE_NEXT_TO_PLAYER] = FALSE;
8518   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
8519   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
8520   custom_element_change_events[CE_SWITCHED_BY_PLAYER] = FALSE;
8521   custom_element_change_events[CE_SNAPPED_BY_PLAYER] = FALSE;
8522   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
8523   custom_element_change_events[CE_ENTERED_BY_PLAYER] = FALSE;
8524   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
8525   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
8526   custom_element_change_events[CE_SWITCHED] = FALSE;
8527   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
8528   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
8529   custom_element_change_events[CE_BLOCKED] = FALSE;
8530   custom_element_change_events[CE_IMPACT] = FALSE;
8531   custom_element_change_events[CE_SMASHED] = FALSE;
8532   custom_element_change_events[CE_VALUE_CHANGES] = FALSE;
8533   custom_element_change_events[CE_SCORE_CHANGES] = FALSE;
8534   custom_element_change_events[CE_VALUE_GETS_ZERO] = FALSE;
8535   custom_element_change_events[CE_SCORE_GETS_ZERO] = FALSE;
8536   custom_element_change_events[CE_CLICKED_BY_MOUSE] = FALSE;
8537   custom_element_change_events[CE_PRESSED_BY_MOUSE] = FALSE;
8538   custom_element_change_events[custom_element_change.direct_action] =
8539     custom_element_change_events[CE_BY_DIRECT_ACTION];
8540
8541   // set other element action change event from checkbox and selectbox
8542   custom_element_change_events[CE_PLAYER_NEXT_TO_X] = FALSE;
8543   custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
8544   custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
8545   custom_element_change_events[CE_PLAYER_SWITCHES_X] = FALSE;
8546   custom_element_change_events[CE_PLAYER_SNAPS_X] = FALSE;
8547   custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
8548   custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
8549   custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
8550   custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
8551   custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
8552   custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
8553   custom_element_change_events[CE_NEXT_TO_X] = FALSE;
8554   custom_element_change_events[CE_TOUCHING_X] = FALSE;
8555   custom_element_change_events[CE_HITTING_X] = FALSE;
8556   custom_element_change_events[CE_DIGGING_X] = FALSE;
8557   custom_element_change_events[CE_HIT_BY_X] = FALSE;
8558   custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
8559   custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
8560   custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
8561   custom_element_change_events[CE_MOVE_OF_X] = FALSE;
8562   custom_element_change_events[CE_CREATION_OF_X] = FALSE;
8563   custom_element_change_events[CE_VALUE_CHANGES_OF_X] = FALSE;
8564   custom_element_change_events[CE_SCORE_CHANGES_OF_X] = FALSE;
8565   custom_element_change_events[CE_VALUE_GETS_ZERO_OF_X] = FALSE;
8566   custom_element_change_events[CE_SCORE_GETS_ZERO_OF_X] = FALSE;
8567   custom_element_change_events[CE_MOUSE_CLICKED_ON_X] = FALSE;
8568   custom_element_change_events[CE_MOUSE_PRESSED_ON_X] = FALSE;
8569   custom_element_change_events[custom_element_change.other_action] =
8570     custom_element_change_events[CE_BY_OTHER_ACTION];
8571
8572   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
8573     SET_PROPERTY(element, i, custom_element_properties[i]);
8574
8575   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
8576     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
8577
8578   // copy change events also to special level editor variable
8579   custom_element = element_info[element];
8580   custom_element_change = *element_info[element].change;
8581
8582   // needed here to restore runtime value "element_info[element].gfx_element"
8583   InitElementPropertiesGfxElement();
8584 }
8585
8586 static void CopyGroupElementPropertiesToGame(int element)
8587 {
8588   // mark that this group element has been modified
8589   custom_element.modified_settings = TRUE;
8590   level.changed = TRUE;
8591
8592   if (level.use_custom_template)
8593     AskToCopyAndModifyLevelTemplate();
8594
8595   element_info[element] = custom_element;
8596   *element_info[element].group = group_element_info;
8597
8598   // needed here to restore runtime value "element_info[element].gfx_element"
8599   InitElementPropertiesGfxElement();
8600 }
8601
8602 static void CopyEmptyElementPropertiesToGame(int element)
8603 {
8604   // mark that this empty element has been modified
8605   custom_element.modified_settings = TRUE;
8606   level.changed = TRUE;
8607
8608   if (level.use_custom_template)
8609     AskToCopyAndModifyLevelTemplate();
8610
8611   element_info[element] = custom_element;
8612
8613   // needed here to restore runtime value "element_info[element].gfx_element"
8614   InitElementPropertiesGfxElement();
8615 }
8616
8617 static void CopyClassicElementPropertiesToGame(int element)
8618 {
8619   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
8620     setMoveIntoAcidProperty(&level, element,
8621                             custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
8622
8623   if (MAYBE_DONT_COLLIDE_WITH(element))
8624     setDontCollideWithProperty(&level, element,
8625                               custom_element_properties[EP_DONT_COLLIDE_WITH]);
8626 }
8627
8628 static void CopyElementPropertiesToGame(int element)
8629 {
8630   if (IS_CUSTOM_ELEMENT(element))
8631     CopyCustomElementPropertiesToGame(element);
8632   else if (IS_GROUP_ELEMENT(element))
8633     CopyGroupElementPropertiesToGame(element);
8634   else if (IS_EMPTY_ELEMENT(element))
8635     CopyEmptyElementPropertiesToGame(element);
8636   else
8637     CopyClassicElementPropertiesToGame(element);
8638 }
8639
8640 #if DEBUG
8641 static void CheckElementDescriptions(void)
8642 {
8643   int i;
8644
8645   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
8646     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
8647       Warn("no element description file for element '%s'", EL_NAME(i));
8648 }
8649 #endif
8650
8651 static int getMaxEdFieldX(boolean has_scrollbar)
8652 {
8653   int scrollbar_width = (has_scrollbar ? ED_SCROLLBUTTON_XSIZE : 0);
8654   int sxsize = SXSIZE - scrollbar_width;
8655   int max_ed_fieldx = sxsize / ed_tilesize;
8656
8657   return max_ed_fieldx;
8658 }
8659
8660 static int getMaxEdFieldY(boolean has_scrollbar)
8661 {
8662   int infotext_height = (IN_PIX_FIELD(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY) ?
8663                          INFOTEXT_YSIZE_FULL : 0);
8664   int scrollbar_height = (has_scrollbar ? ED_SCROLLBUTTON_YSIZE : 0);
8665   int sysize = SYSIZE - scrollbar_height - infotext_height;
8666   int max_ed_fieldy = sysize / ed_tilesize;
8667
8668   return max_ed_fieldy;
8669 }
8670
8671 static void InitZoomLevelSettings(int zoom_tilesize)
8672 {
8673   static int last_game_engine_type = GAME_ENGINE_TYPE_UNKNOWN;
8674
8675   if (zoom_tilesize == -1 && level.game_engine_type != last_game_engine_type)
8676   {
8677     ed_tilesize = setup.auto_setup.editor_zoom_tilesize;
8678     ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
8679
8680     // make sure that tile size is always a power of 2
8681     ed_tilesize = (1 << log_2(ed_tilesize));
8682
8683     if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
8684     {
8685       ed_tilesize = DEFAULT_EDITOR_TILESIZE_MM;
8686       ed_tilesize_default = DEFAULT_EDITOR_TILESIZE_MM;
8687     }
8688   }
8689
8690   last_game_engine_type = level.game_engine_type;
8691
8692   // limit zoom tilesize by upper and lower bound
8693   ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
8694
8695   // store zoom tilesize in auto setup file only if it was manually changed
8696   if (zoom_tilesize != -1)
8697     setup.auto_setup.editor_zoom_tilesize = ed_tilesize;
8698
8699   MAX_ED_FIELDX = getMaxEdFieldX(FALSE);
8700   MAX_ED_FIELDY = getMaxEdFieldY(FALSE);
8701 }
8702
8703 static void InitDrawingElements(void)
8704 {
8705   static int game_engine_type_last = GAME_ENGINE_TYPE_UNKNOWN;
8706
8707   if (level.game_engine_type == game_engine_type_last)
8708     return;
8709
8710   if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
8711   {
8712     new_element1 = EL_SP_CHIP_SINGLE;
8713     new_element2 = EL_EMPTY;
8714     new_element3 = EL_SP_BASE;
8715   }
8716   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
8717   {
8718     new_element1 = EL_MM_MIRROR_START;
8719     new_element2 = EL_EMPTY;
8720     new_element3 = EL_MM_WOODEN_WALL;
8721   }
8722   else
8723   {
8724     new_element1 = EL_WALL;
8725     new_element2 = EL_EMPTY;
8726     new_element3 = EL_SAND;
8727   }
8728
8729   game_engine_type_last = level.game_engine_type;
8730 }
8731
8732 static void InitLevelSetInfo(void)
8733 {
8734   snprintf(levelset_name,   MAX_LEVEL_NAME_LEN + 1,
8735            "%s", leveldir_current->name);
8736   snprintf(levelset_author, MAX_LEVEL_AUTHOR_LEN + 1,
8737            "%s", leveldir_current->author);
8738
8739   levelset_num_levels = leveldir_current->levels;
8740
8741   levelset_use_levelset_artwork = FALSE;
8742   levelset_copy_level_template = FALSE;
8743
8744   levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
8745 }
8746
8747 static void ChangeEditorToLevelSet(char *levelset_subdir)
8748 {
8749   leveldir_current = getTreeInfoFromIdentifier(leveldir_first, levelset_subdir);
8750
8751   // the previous level set might have used custom artwork
8752   ReloadCustomArtwork(0);
8753
8754   LoadLevelSetup_SeriesInfo();
8755
8756   SaveLevelSetup_LastSeries();
8757   SaveLevelSetup_SeriesInfo();
8758
8759   TapeErase();
8760
8761   LoadLevel(level_nr);
8762   LoadScore(level_nr);
8763
8764   DrawLevelEd();
8765 }
8766
8767 static boolean useEditorDoorAnimation(void)
8768 {
8769   struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
8770   boolean door_1_viewport_unchanged =
8771     (vp_door_1->x      == DX     &&
8772      vp_door_1->y      == DY     &&
8773      vp_door_1->width  == DXSIZE &&
8774      vp_door_1->height == DYSIZE);
8775   boolean door_1_contains_toolbox =
8776     (EX >= DX &&
8777      EY >= DY &&
8778      EX + EXSIZE <= DX + DXSIZE &&
8779      EY + EYSIZE <= DY + DYSIZE);
8780
8781   return (door_1_viewport_unchanged && door_1_contains_toolbox);
8782 }
8783
8784 static void DrawEditorDoorBackground(int graphic, int x, int y,
8785                                      int width, int height)
8786 {
8787   struct GraphicInfo *g = &graphic_info[graphic];
8788
8789   if (g->bitmap != NULL)
8790     BlitBitmap(g->bitmap, drawto, g->src_x, g->src_y,
8791                MIN(width, g->width), MIN(height, g->height), x, y);
8792   else
8793     ClearRectangle(drawto, x, y, width, height);
8794 }
8795
8796 static void DrawEditorDoorContent(void)
8797 {
8798   // needed for gadgets drawn on background (like palette scrollbar)
8799   SetDoorBackgroundImage(IMG_UNDEFINED);
8800
8801   // copy default editor door content to main double buffer
8802   DrawEditorDoorBackground(IMG_BACKGROUND_PALETTE, DX, DY, DXSIZE, DYSIZE);
8803
8804   // draw bigger door
8805   DrawSpecialEditorDoor();
8806
8807   // draw new control window
8808   DrawEditorDoorBackground(IMG_BACKGROUND_TOOLBOX, EX, EY, EXSIZE, EYSIZE);
8809
8810   // draw all toolbox gadgets to editor doors
8811   MapControlButtons();
8812
8813   // when returning from test game to properties page, redraw toolbox gadgets
8814   if (edit_mode == ED_MODE_PROPERTIES)
8815   {
8816     UnmapLevelEditorToolboxDrawingGadgets();
8817     UnmapLevelEditorToolboxCustomGadgets();
8818
8819     MapLevelEditorToolboxCustomGadgetsIfNeeded();
8820   }
8821
8822   // draw all palette gadgets to editor doors
8823   ModifyEditorElementList();
8824   RedrawDrawingElements();
8825
8826   // copy actual editor door content to door double buffer for OpenDoor()
8827   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
8828 }
8829
8830 void DrawLevelEd(void)
8831 {
8832   int fade_mask = REDRAW_FIELD;
8833
8834   FadeSoundsAndMusic();
8835
8836   if (CheckFadeAll())
8837     fade_mask = REDRAW_ALL;
8838
8839   FadeOut(fade_mask);
8840
8841   // needed if different viewport properties defined for editor
8842   ChangeViewportPropertiesIfNeeded();
8843
8844   ClearField();
8845
8846   InitZoomLevelSettings(-1);
8847   InitDrawingElements();
8848   InitLevelSetInfo();
8849
8850 #if DEBUG
8851   CheckElementDescriptions();
8852 #endif
8853
8854   if (level_editor_test_game)
8855   {
8856     CopyPlayfield(level.field, Tile);
8857     CopyPlayfield(TileBackup, level.field);
8858
8859     level_editor_test_game = FALSE;
8860   }
8861   else
8862   {
8863     edit_mode = ED_MODE_DRAWING;
8864     edit_mode_levelconfig = ED_MODE_LEVELCONFIG_LEVEL;
8865     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
8866
8867     ResetUndoBuffer();
8868
8869     level_xpos = -1;
8870     level_ypos = -1;
8871   }
8872
8873   // redraw_mask |= REDRAW_ALL;
8874
8875   FreeLevelEditorGadgets();
8876   CreateLevelEditorGadgets();
8877
8878   ReinitializeElementList();            // update dynamic level element list
8879   ReinitializeElementListButtons();     // custom element may look different
8880
8881   InitElementPropertiesGfxElement();
8882
8883   UnmapAllGadgets();
8884
8885   DrawEditModeWindow_PlayfieldOnly();
8886
8887   DrawMaskedBorder(fade_mask);
8888
8889   // use door animation if door 1 viewport is unchanged and contains toolbox
8890   if (useEditorDoorAnimation())
8891   {
8892     FadeIn(fade_mask);
8893
8894     DrawEditorDoorContent();
8895
8896     OpenDoor(DOOR_OPEN_1 | DOOR_FORCE_ANIM);
8897   }
8898   else
8899   {
8900     DrawEditorDoorContent();
8901
8902     FadeIn(fade_mask);
8903   }
8904
8905   SetDoorState(DOOR_OPEN_1 | DOOR_OPEN_2);
8906 }
8907
8908 static void AdjustDrawingAreaGadgets(void)
8909 {
8910   int ed_xsize = lev_fieldx + 2;
8911   int ed_ysize = lev_fieldy + 2;
8912   int max_ed_fieldx = MAX_ED_FIELDX;
8913   int max_ed_fieldy = MAX_ED_FIELDY;
8914   boolean horizontal_scrollbar_needed;
8915   boolean vertical_scrollbar_needed;
8916   int x, y, width, height;
8917
8918   if (suppressBorderElement())
8919   {
8920     ed_xsize = max_ed_fieldx;
8921     ed_ysize = max_ed_fieldy;
8922   }
8923
8924   // check if we need any scrollbars
8925   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
8926   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
8927
8928   // check if we have a smaller editor field because of scrollbars
8929   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
8930   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
8931
8932   // check again if we now need more scrollbars because of less space
8933   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
8934   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
8935
8936   // check if editor field gets even smaller after adding new scrollbars
8937   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
8938   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
8939
8940   ed_fieldx = (ed_xsize > max_ed_fieldx ? max_ed_fieldx : ed_xsize);
8941   ed_fieldy = (ed_ysize > max_ed_fieldy ? max_ed_fieldy : ed_ysize);
8942
8943   x = SX + ed_fieldx * ed_tilesize;
8944   y = SY + ed_fieldy * ed_tilesize;
8945
8946   width  = ed_fieldx * ed_tilesize - 2 * ED_SCROLLBUTTON_XSIZE;
8947   height = ed_fieldy * ed_tilesize - 2 * ED_SCROLLBUTTON_YSIZE;
8948
8949   // adjust drawing area gadget
8950   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
8951                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
8952                GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
8953                GDI_END);
8954
8955   // adjust horizontal scrollbar gadgets
8956   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LEFT],
8957                GDI_Y, y,
8958                GDI_END);
8959   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT],
8960                GDI_X, x - ED_SCROLLBUTTON_XSIZE,
8961                GDI_Y, y,
8962                GDI_END);
8963   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
8964                GDI_Y, y,
8965                GDI_WIDTH, width,
8966                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
8967                GDI_END);
8968
8969   // adjust vertical scrollbar gadgets
8970   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_UP],
8971                GDI_X, x,
8972                GDI_END);
8973   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN],
8974                GDI_X, x,
8975                GDI_Y, y - ED_SCROLLBUTTON_YSIZE,
8976                GDI_END);
8977   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
8978                GDI_X, x,
8979                GDI_HEIGHT, height,
8980                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
8981                GDI_END);
8982 }
8983
8984 static void AdjustLevelScrollPosition(void)
8985 {
8986   if (level_xpos < -1)
8987     level_xpos = -1;
8988   if (level_xpos > lev_fieldx - ed_fieldx + 1)
8989     level_xpos = lev_fieldx - ed_fieldx + 1;
8990   if (lev_fieldx < ed_fieldx - 2)
8991     level_xpos = -1;
8992
8993   if (level_ypos < -1)
8994     level_ypos = -1;
8995   if (level_ypos > lev_fieldy - ed_fieldy + 1)
8996     level_ypos = lev_fieldy - ed_fieldy + 1;
8997   if (lev_fieldy < ed_fieldy - 2)
8998     level_ypos = -1;
8999
9000   if (suppressBorderElement())
9001   {
9002     level_xpos = 0;
9003     level_ypos = 0;
9004   }
9005 }
9006
9007 static void AdjustEditorScrollbar(int id)
9008 {
9009   struct GadgetInfo *gi = level_editor_gadget[id];
9010   int items_max, items_visible, item_position;
9011
9012   if (id == GADGET_ID_SCROLL_HORIZONTAL)
9013   {
9014     items_max = MAX(lev_fieldx + 2, ed_fieldx);
9015     items_visible = ed_fieldx;
9016     item_position = level_xpos + 1;
9017   }
9018   else
9019   {
9020     items_max = MAX(lev_fieldy + 2, ed_fieldy);
9021     items_visible = ed_fieldy;
9022     item_position = level_ypos + 1;
9023   }
9024
9025   if (item_position > items_max - items_visible)
9026     item_position = items_max - items_visible;
9027
9028   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9029                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9030 }
9031
9032 static void AdjustElementListScrollbar(void)
9033 {
9034   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL];
9035   int items_max, items_visible, item_position;
9036
9037   // correct position of element list scrollbar
9038   if (element_shift < 0)
9039     element_shift = 0;
9040   if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
9041     element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
9042
9043   items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
9044   items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
9045   item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
9046
9047   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9048                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
9049                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9050 }
9051
9052 static void ModifyEditorCounterValue(int counter_id, int new_value)
9053 {
9054   int *counter_value = counterbutton_info[counter_id].value;
9055   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9056   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9057
9058   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
9059
9060   if (counter_value != NULL)
9061     *counter_value = gi->textinput.number_value;
9062 }
9063
9064 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
9065 {
9066   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9067   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9068
9069   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
9070
9071   if (counter_id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
9072       counter_id <= ED_COUNTER_ID_ELEMENT_VALUE4)
9073   {
9074     int gadget_id_up = counterbutton_info[counter_id].gadget_id_up;
9075     struct GadgetInfo *gi_up = level_editor_gadget[gadget_id_up];
9076
9077     ModifyGadget(gi, GDI_TEXT_SIZE, (max < 10 ? 1 : 3), GDI_END);
9078     ModifyGadget(gi_up, GDI_X, gi->x + gi->width + ED_GADGET_SMALL_DISTANCE,
9079                  GDI_END);
9080   }
9081 }
9082
9083 static void ModifyEditorSelectboxValue(int selectbox_id, int new_value)
9084 {
9085   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9086   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9087   int new_index_value = setSelectboxValue(selectbox_id, new_value);
9088
9089   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
9090 }
9091
9092 static void ModifyEditorSelectboxOptions(int selectbox_id,
9093                                          struct ValueTextInfo *options)
9094 {
9095   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9096   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9097
9098   selectbox_info[selectbox_id].options = options;
9099
9100   // set index to zero -- list may be shorter now (correct later, if needed)
9101   ModifyGadget(gi, GDI_SELECTBOX_INDEX, 0,
9102                GDI_SELECTBOX_OPTIONS, options, GDI_END);
9103 }
9104
9105 static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
9106 {
9107   int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
9108   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9109
9110   drawingarea_info[drawingarea_id].area_xsize = xsize;
9111   drawingarea_info[drawingarea_id].area_ysize = ysize;
9112
9113   ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
9114 }
9115
9116 static void ModifyEditorElementList(void)
9117 {
9118   int i;
9119
9120   if (!use_permanent_palette && edit_mode != ED_MODE_PALETTE)
9121     return;
9122
9123   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
9124   {
9125     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
9126     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9127     struct GadgetDesign *gd = &gi->deco.design;
9128     int element = editor_elements[element_shift + i];
9129     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
9130
9131     UnmapGadget(gi);
9132
9133     getEditorGraphicSource(element, tile_size, &gd->bitmap, &gd->x, &gd->y);
9134
9135     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
9136
9137     MapGadget(gi);
9138   }
9139 }
9140
9141 static void DrawDrawingElementGraphic(int element, struct XYTileSize *pos)
9142 {
9143   int graphic = el2edimg(element);
9144   int tile_size = BUTTON_TILE_SIZE(pos->tile_size);
9145
9146   if (pos->x == -1 &&
9147       pos->y == -1)
9148     return;
9149
9150   DrawSizedGraphicExt(drawto, DX + pos->x, DY + pos->y, graphic, 0, tile_size);
9151 }
9152
9153 static void ModifyDrawingElementButton(int element, int id)
9154 {
9155   struct GadgetInfo *gi = level_editor_gadget[id];
9156   Bitmap *deco_bitmap;
9157   int deco_x, deco_y;
9158   int tile_size = gi->deco.width;
9159
9160   getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
9161
9162   ModifyGadget(gi, GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y, GDI_END);
9163 }
9164
9165 static void PickDrawingElement(int button, int element)
9166 {
9167   struct
9168   {
9169     int *new_element;
9170     struct XYTileSize *pos;
9171     int id;
9172   } de, drawing_elements[] =
9173   {
9174     { &new_element1, &editor.palette.element_left,   GADGET_ID_ELEMENT_LEFT   },
9175     { &new_element2, &editor.palette.element_middle, GADGET_ID_ELEMENT_MIDDLE },
9176     { &new_element3, &editor.palette.element_right,  GADGET_ID_ELEMENT_RIGHT  },
9177   };
9178
9179   if (button < 1 || button > 3)
9180     return;
9181
9182   if (IS_MM_WALL(element))
9183     element = map_mm_wall_element(element);
9184
9185   de = drawing_elements[button - 1];
9186
9187   *de.new_element = element;    // update global drawing element variable
9188
9189   DrawDrawingElementGraphic(element, de.pos);
9190   ModifyDrawingElementButton(element, de.id);
9191
9192   redraw_mask |= REDRAW_DOOR_1;
9193 }
9194
9195 static void RedrawDrawingElements(void)
9196 {
9197   PickDrawingElement(1, new_element1);
9198   PickDrawingElement(2, new_element2);
9199   PickDrawingElement(3, new_element3);
9200 }
9201
9202 static void DrawDrawingWindowExt(boolean remap_toolbox_gadgets)
9203 {
9204   stick_element_properties_window = FALSE;
9205
9206   SetMainBackgroundImage(IMG_UNDEFINED);
9207   ClearField();
9208
9209   UnmapLevelEditorFieldGadgets();
9210
9211   AdjustDrawingAreaGadgets();
9212   AdjustLevelScrollPosition();
9213   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
9214   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
9215
9216   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
9217
9218   MapMainDrawingArea();
9219
9220   if (remap_toolbox_gadgets)
9221   {
9222     UnmapLevelEditorToolboxCustomGadgets();
9223     MapLevelEditorToolboxDrawingGadgets();
9224   }
9225 }
9226
9227 static void DrawDrawingWindow(void)
9228 {
9229   DrawDrawingWindowExt(TRUE);
9230 }
9231
9232 static int getTabulatorBarWidth(void)
9233 {
9234   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
9235   struct GadgetInfo *gd_gi4 = level_editor_gadget[GADGET_ID_PROPERTIES_CHANGE];
9236
9237   return gd_gi4->x - gd_gi1->x + gd_gi4->width;
9238 }
9239
9240 static int getTabulatorBarHeight(void)
9241 {
9242   return ED_TAB_BAR_HEIGHT;
9243 }
9244
9245 static Pixel getTabulatorBarColor(void)
9246 {
9247   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
9248   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
9249   int gd_x = gd->x + gd_gi1->border.width / 2;
9250   int gd_y = gd->y + gd_gi1->height - 1;
9251
9252   return GetPixel(gd->bitmap, gd_x, gd_y);
9253 }
9254
9255 static void DrawLevelConfigTabulatorGadgets(void)
9256 {
9257   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELCONFIG_LEVEL];
9258   Pixel tab_color = getTabulatorBarColor();
9259   int id_first = ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST;
9260   int id_last  = ED_TAB_BUTTON_ID_LEVELCONFIG_LAST;
9261   int i;
9262
9263   for (i = id_first; i <= id_last; i++)
9264   {
9265     int gadget_id = textbutton_info[i].gadget_id;
9266     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9267     boolean active = (i != edit_mode_levelconfig);
9268
9269     // draw background line below tabulator button
9270     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
9271
9272     // draw solid line below inactive tabulator buttons
9273     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
9274       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
9275                     ED_GADGET_TINY_DISTANCE, tab_color);
9276
9277     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
9278     MapTextbuttonGadget(i);
9279   }
9280
9281   // draw little border line below tabulator buttons
9282   if (tab_color != BLACK_PIXEL)                 // black => transparent
9283     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
9284                   ED_GADGET_TINY_DISTANCE,
9285                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
9286 }
9287
9288 static void DrawPropertiesTabulatorGadgets(void)
9289 {
9290   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
9291   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
9292   int gd_x = gd->x + gd_gi1->border.width / 2;
9293   int gd_y = gd->y + gd_gi1->height - 1;
9294   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
9295   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
9296   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
9297   int i;
9298
9299   // draw two config tabulators for player elements
9300   if (IS_PLAYER_ELEMENT(properties_element))
9301     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
9302
9303   // draw two config and one "change" tabulator for custom elements
9304   if (IS_CUSTOM_ELEMENT(properties_element))
9305     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CHANGE;
9306
9307   for (i = id_first; i <= id_last; i++)
9308   {
9309     int gadget_id = textbutton_info[i].gadget_id;
9310     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9311     boolean active = (i != edit_mode_properties);
9312
9313     // use "config 1" and "config 2" instead of "config" for players and CEs
9314     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
9315         (IS_PLAYER_ELEMENT(properties_element) ||
9316          IS_CUSTOM_ELEMENT(properties_element)))
9317       continue;
9318
9319     // draw background line below tabulator button
9320     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
9321
9322     // draw solid line below inactive tabulator buttons
9323     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
9324       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
9325                     ED_GADGET_TINY_DISTANCE, tab_color);
9326
9327     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
9328     MapTextbuttonGadget(i);
9329   }
9330
9331   // draw little border line below tabulator buttons
9332   if (tab_color != BLACK_PIXEL)                 // black => transparent
9333     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
9334                   ED_GADGET_TINY_DISTANCE,
9335                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
9336 }
9337
9338 static void PrintInfoText(char *text, int font_nr, int xpos, int ypos)
9339 {
9340   DrawText(SX + xpos, SY + ypos, text, font_nr);
9341 }
9342
9343 static int PrintElementDescriptionFromFile(char *filename, int font_nr,
9344                                            int xpos, int ypos)
9345 {
9346   int font_width = getFontWidth(font_nr);
9347   int font_height = getFontHeight(font_nr);
9348   int max_chars_per_line = (SXSIZE - 2 * xpos) / font_width;
9349   int max_lines_drawable = (SYSIZE - ypos) / font_height - 1;
9350
9351   return DrawTextFile(SX + xpos, SY + ypos, filename, font_nr,
9352                       max_chars_per_line, -1, max_lines_drawable, 0, -1,
9353                       TRUE, FALSE, FALSE);
9354 }
9355
9356 static void DrawLevelConfigLevel(void)
9357 {
9358   int i;
9359
9360   // draw counter gadgets
9361   for (i = ED_COUNTER_ID_LEVEL_FIRST; i <= ED_COUNTER_ID_LEVEL_LAST; i++)
9362     MapCounterButtons(i);
9363
9364   // draw checkbutton gadgets
9365   for (i = ED_CHECKBUTTON_ID_LEVEL_FIRST; i<= ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
9366     MapCheckbuttonGadget(i);
9367
9368   // draw selectbox gadgets
9369   for (i = ED_SELECTBOX_ID_LEVEL_FIRST; i <= ED_SELECTBOX_ID_LEVEL_LAST; i++)
9370     MapSelectboxGadget(i);
9371
9372   // draw text input gadgets
9373   for (i = ED_TEXTINPUT_ID_LEVEL_FIRST; i <= ED_TEXTINPUT_ID_LEVEL_LAST; i++)
9374     MapTextInputGadget(i);
9375 }
9376
9377 static char *getLevelSubdirFromSaveMode(int save_mode)
9378 {
9379   if (save_mode == LEVELSET_SAVE_MODE_CREATE)
9380     return getNewUserLevelSubdir();
9381
9382   return leveldir_current->subdir;
9383 }
9384
9385 static void DrawLevelConfigLevelSet_DirectoryInfo(void)
9386 {
9387   char *directory_text = "Level set directory:";
9388   char *directory_name = getLevelSubdirFromSaveMode(levelset_save_mode);
9389   int font1_nr = FONT_TEXT_1;
9390   int font2_nr = FONT_TEXT_2;
9391   int font1_height = getFontHeight(font1_nr);
9392   int yoffset_above = font1_height + ED_GADGET_LINE_DISTANCE;
9393   int x = ED_LEVEL_SETTINGS_X(0);
9394   int y = ED_LEVEL_SETTINGS_Y(6);
9395
9396   PrintInfoText(directory_text, font1_nr, x, y - yoffset_above);
9397   PrintInfoText(directory_name, font2_nr, x, y);
9398 }
9399
9400 static void DrawLevelConfigLevelSet(void)
9401 {
9402   boolean artwork_exists = checkIfCustomArtworkExistsForCurrentLevelSet();
9403   boolean template_exists = fileExists(getLocalLevelTemplateFilename());
9404   int i;
9405
9406   // draw counter gadgets
9407   for (i = ED_COUNTER_ID_LEVELSET_FIRST; i <= ED_COUNTER_ID_LEVELSET_LAST; i++)
9408     MapCounterButtons(i);
9409
9410   // draw checkbutton gadgets
9411   for (i = ED_CHECKBUTTON_ID_LEVELSET_FIRST; i <= ED_CHECKBUTTON_ID_LEVELSET_LAST; i++)
9412   {
9413     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE ||
9414         (i == ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK && !artwork_exists) ||
9415         (i == ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE  && !template_exists))
9416       continue;
9417
9418     MapCheckbuttonGadget(i);
9419   }
9420
9421   // draw selectbox gadgets
9422   for (i = ED_SELECTBOX_ID_LEVELSET_FIRST; i <= ED_SELECTBOX_ID_LEVELSET_LAST; i++)
9423     MapSelectboxGadget(i);
9424
9425   // draw text input gadgets
9426   for (i = ED_TEXTINPUT_ID_LEVELSET_FIRST; i <= ED_TEXTINPUT_ID_LEVELSET_LAST; i++)
9427     MapTextInputGadget(i);
9428
9429   // draw textbutton gadgets
9430   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_LEVELSET);
9431
9432   // draw info text
9433   DrawLevelConfigLevelSet_DirectoryInfo();
9434 }
9435
9436 static void DrawLevelConfigEditor(void)
9437 {
9438   int i;
9439
9440   // draw counter gadgets
9441   for (i = ED_COUNTER_ID_EDITOR_FIRST; i <= ED_COUNTER_ID_EDITOR_LAST; i++)
9442     MapCounterButtons(i);
9443
9444   // draw checkbutton gadgets
9445   for (i=ED_CHECKBUTTON_ID_EDITOR_FIRST; i<= ED_CHECKBUTTON_ID_EDITOR_LAST; i++)
9446     MapCheckbuttonGadget(i);
9447
9448   // draw radiobutton gadgets
9449   for (i=ED_RADIOBUTTON_ID_EDITOR_FIRST; i<= ED_RADIOBUTTON_ID_EDITOR_LAST; i++)
9450     MapRadiobuttonGadget(i);
9451
9452   // draw drawing area
9453   MapDrawingArea(ED_DRAWING_ID_RANDOM_BACKGROUND);
9454
9455   // draw textbutton gadgets
9456   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2);
9457 }
9458
9459 static void DrawLevelConfigWindow(void)
9460 {
9461   char *text = "Global Settings";
9462   int font_nr = FONT_TITLE_1;
9463   struct MenuPosInfo *pos = &editor.settings.headline;
9464   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font_nr), pos->align);
9465   int sy = SY + pos->y;
9466
9467   stick_element_properties_window = FALSE;
9468
9469   SetAutomaticNumberOfGemsNeeded();
9470
9471   UnmapLevelEditorFieldGadgets();
9472
9473   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
9474   ClearField();
9475
9476   DrawText(sx, sy, text, font_nr);
9477
9478   DrawLevelConfigTabulatorGadgets();
9479
9480   if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVEL)
9481     DrawLevelConfigLevel();
9482   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_LEVELSET)
9483     DrawLevelConfigLevelSet();
9484   else if (edit_mode_levelconfig == ED_MODE_LEVELCONFIG_EDITOR)
9485     DrawLevelConfigEditor();
9486 }
9487
9488 static void DrawCustomContentArea(void)
9489 {
9490   int id = ED_DRAWING_ID_CUSTOM_CONTENT;
9491   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
9492   int x1 = right_gadget_border[GADGET_ID_CUSTOM_DEADLINESS];
9493   int x2 = right_gadget_border[GADGET_ID_CUSTOM_EXPLOSION_TYPE];
9494   int x3 = right_gadget_border[GADGET_ID_CUSTOM_EXPLODE_IMPACT];
9495   int xoffset = ED_GADGET_SPACE_DISTANCE;
9496
9497   // add distance for potential left text (without drawing area border)
9498   x2 += getTextWidthForGadget(drawingarea_info[id].text_left);
9499
9500   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
9501
9502   MapDrawingArea(ED_DRAWING_ID_CUSTOM_CONTENT);
9503 }
9504
9505 static void DrawCustomChangeContentArea(void)
9506 {
9507   int id = ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT;
9508   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
9509   int x1 = right_gadget_border[GADGET_ID_CHANGE_USE_CONTENT];
9510   int x2 = right_gadget_border[GADGET_ID_CHANGE_REPLACE_WHEN];
9511   int x3 = right_gadget_border[GADGET_ID_CHANGE_ONLY_COMPLETE];
9512   int xoffset = ED_GADGET_SPACE_DISTANCE;
9513
9514   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
9515
9516   MapDrawingArea(id);
9517 }
9518
9519 static void RemoveElementContentArea(int id, int font_height)
9520 {
9521   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9522
9523   DrawBackground(SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size,
9524                  SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size,
9525                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9526                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size +
9527                  ED_GADGET_TEXT_DISTANCE + font_height);
9528 }
9529
9530 static void DrawYamYamContentAreas(void)
9531 {
9532   int font_nr = FONT_TEXT_1;
9533   int font_height = getFontHeight(font_nr);
9534   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
9535   int yoffset = (tilesize - font_height) / 2;
9536   int x = SX + ED_AREA_YAMYAM_CONTENT_X(3) + 4 * tilesize;
9537   int y = SY + ED_AREA_YAMYAM_CONTENT_Y(3) + yoffset;
9538   int i;
9539
9540   // display counter to choose number of element content areas
9541   MapCounterButtons(ED_COUNTER_ID_YAMYAM_CONTENT);
9542
9543   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
9544   {
9545     int id = ED_DRAWING_ID_YAMYAM_CONTENT_0 + i;
9546
9547     if (i < level.num_yamyam_contents)
9548     {
9549       MapDrawingArea(id);
9550     }
9551     else
9552     {
9553       UnmapDrawingArea(id);
9554
9555       // delete content areas in case of reducing number of them
9556       RemoveElementContentArea(id, font_height);
9557     }
9558   }
9559
9560   DrawText(x, y + 0 * tilesize, "content", font_nr);
9561   DrawText(x, y + 1 * tilesize, "when",    font_nr);
9562   DrawText(x, y + 2 * tilesize, "smashed", font_nr);
9563 }
9564
9565 static void DrawMagicBallContentAreas(void)
9566 {
9567   int font_nr = FONT_TEXT_1;
9568   int font_height = getFontHeight(font_nr);
9569   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
9570   int yoffset = (tilesize - font_height) / 2;
9571   int x = SX + ED_AREA_MAGIC_BALL_CONTENT_X(3) + 4 * tilesize;
9572   int y = SY + ED_AREA_MAGIC_BALL_CONTENT_Y(3) + yoffset;
9573   int i;
9574
9575   // display counter to choose number of element content areas
9576   MapCounterButtons(ED_COUNTER_ID_BALL_CONTENT);
9577
9578   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
9579   {
9580     int id = ED_DRAWING_ID_MAGIC_BALL_CONTENT_0 + i;
9581
9582     if (i < level.num_ball_contents)
9583     {
9584       MapDrawingArea(id);
9585     }
9586     else
9587     {
9588       UnmapDrawingArea(id);
9589
9590       // delete content areas in case of reducing number of them
9591       RemoveElementContentArea(id, font_height);
9592     }
9593   }
9594
9595   DrawText(x, y + 0 * tilesize, "generated", font_nr);
9596   DrawText(x, y + 1 * tilesize, "when",      font_nr);
9597   DrawText(x, y + 2 * tilesize, "active",    font_nr);
9598 }
9599
9600 static void DrawAndroidElementArea(void)
9601 {
9602   int id = ED_DRAWING_ID_ANDROID_CONTENT;
9603   int num_elements = level.num_android_clone_elements;
9604   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9605   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9606   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9607   int xsize = MAX_ANDROID_ELEMENTS;
9608   int ysize = 1;
9609
9610   // display counter to choose number of element areas
9611   MapCounterButtons(ED_COUNTER_ID_ANDROID_CONTENT);
9612
9613   if (drawingarea_info[id].text_left != NULL)
9614     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9615
9616   UnmapDrawingArea(id);
9617
9618   ModifyEditorDrawingArea(id, num_elements, 1);
9619
9620   // delete content areas in case of reducing number of them
9621   DrawBackground(sx, sy,
9622                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9623                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9624
9625   MapDrawingArea(id);
9626 }
9627
9628 static void DrawGroupElementArea(void)
9629 {
9630   int id = ED_DRAWING_ID_GROUP_CONTENT;
9631   int num_elements = group_element_info.num_elements;
9632   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9633   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9634   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9635   int xsize = MAX_ELEMENTS_IN_GROUP;
9636   int ysize = 1;
9637
9638   if (drawingarea_info[id].text_left != NULL)
9639     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9640
9641   UnmapDrawingArea(id);
9642
9643   ModifyEditorDrawingArea(id, num_elements, 1);
9644
9645   // delete content areas in case of reducing number of them
9646   DrawBackground(sx, sy,
9647                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9648                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9649
9650   MapDrawingArea(id);
9651 }
9652
9653 static void DrawPlayerInitialInventoryArea(int element)
9654 {
9655   int id = ED_DRAWING_ID_INVENTORY_CONTENT;
9656   int player_nr = GET_PLAYER_NR(element);
9657   int num_elements = level.initial_inventory_size[player_nr];
9658   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9659   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9660   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9661   int xsize = MAX_INITIAL_INVENTORY_SIZE;
9662   int ysize = 1;
9663
9664   // determine horizontal position to the right of specified gadget
9665   if (drawingarea_info[id].gadget_id_align != GADGET_ID_NONE)
9666     sx = (right_gadget_border[drawingarea_info[id].gadget_id_align] +
9667           ED_DRAWINGAREA_TEXT_DISTANCE);
9668
9669   // determine horizontal offset for leading text
9670   if (drawingarea_info[id].text_left != NULL)
9671     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9672
9673   UnmapDrawingArea(id);
9674
9675   ModifyEditorDrawingArea(id, num_elements, 1);
9676
9677   // delete content areas in case of reducing number of them
9678   DrawBackground(sx, sy,
9679                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9680                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9681
9682   MapDrawingArea(id);
9683 }
9684
9685 static void DrawMMBallContentArea(void)
9686 {
9687   int id = ED_DRAWING_ID_MM_BALL_CONTENT;
9688   int num_elements = level.num_mm_ball_contents;
9689   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9690   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9691   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9692   int xsize = MAX_MM_BALL_CONTENTS;
9693   int ysize = 1;
9694
9695   if (drawingarea_info[id].text_left != NULL)
9696     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9697
9698   UnmapDrawingArea(id);
9699
9700   ModifyEditorDrawingArea(id, num_elements, 1);
9701
9702   // delete content areas in case of reducing number of them
9703   DrawBackground(sx, sy,
9704                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9705                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9706
9707   MapDrawingArea(id);
9708 }
9709
9710 static void DrawEnvelopeTextArea(int envelope_nr)
9711 {
9712   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
9713   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
9714
9715   UnmapGadget(gi);
9716
9717   DrawBackground(gi->x, gi->y,
9718                  gi->textarea.crop_width, gi->textarea.crop_height);
9719
9720   if (envelope_nr != -1)
9721     textarea_info[id].value = level.envelope[envelope_nr].text;
9722
9723   ModifyGadget(gi, GDI_AREA_SIZE,
9724                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_XSIZE].value,
9725                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_YSIZE].value,
9726                GDI_END);
9727
9728   MapTextAreaGadget(ED_TEXTAREA_ID_ENVELOPE_INFO);
9729 }
9730
9731 static void DrawPropertiesInfo(void)
9732 {
9733   static struct
9734   {
9735     int value;
9736     char *text;
9737   }
9738   properties[] =
9739   {
9740     // configurable properties
9741
9742     { EP_WALKABLE_OVER,         "- player can walk over it"             },
9743     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
9744     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
9745     { EP_PASSABLE_OVER,         "- player can pass over it"             },
9746     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
9747     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
9748     { EP_PROTECTED,             "- player is protected by it"           },
9749
9750     { EP_DIGGABLE,              "- can be digged away"                  },
9751     { EP_COLLECTIBLE,           "- can be collected"                    },
9752     { EP_DROPPABLE,             "- can be dropped after collecting"     },
9753     { EP_THROWABLE,             "- can be thrown after collecting"      },
9754     { EP_PUSHABLE,              "- can be pushed"                       },
9755
9756     { EP_CAN_FALL,              "- can fall"                            },
9757     { EP_CAN_MOVE,              "- can move"                            },
9758
9759     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
9760 #if 0
9761     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
9762 #endif
9763     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
9764
9765     { EP_SLIPPERY,              "- slippery for falling elements"       },
9766     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
9767
9768     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
9769     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
9770     { EP_DONT_GET_HIT_BY,       "- deadly when getting hit by"          },
9771     { EP_DONT_TOUCH,            "- deadly when touching"                },
9772
9773     { EP_INDESTRUCTIBLE,        "- indestructible"                      },
9774
9775     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode by fire or explosions"   },
9776     { EP_CAN_EXPLODE_SMASHED,   "- can explode when smashed"            },
9777     { EP_CAN_EXPLODE_IMPACT,    "- can explode on impact"               },
9778
9779     { EP_CAN_CHANGE,            "- can change to other element"         },
9780
9781     // pre-defined properties
9782     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
9783     { EP_CAN_PASS_DC_MAGIC_WALL,"- can pass magic walls (DC style)"     },
9784     { EP_SWITCHABLE,            "- can be switched"                     },
9785 #if 0
9786     { EP_HAS_EDITOR_CONTENT,    "- can contain other elements"          },
9787 #endif
9788
9789     { -1,                       NULL                                    }
9790   };
9791   char *filename = getElementDescriptionFilename(properties_element);
9792   char *num_elements_text = "In this level: ";
9793   char *num_similar_text = "Similar tiles: ";
9794   char *properties_text = "Standard properties: ";
9795   char *description_text = "Description:";
9796   char *no_description_text = "No description available.";
9797   char *none_text = "None";
9798   float percentage;
9799   int num_elements_in_level = 0;
9800   int num_similar_in_level = 0;
9801   int num_hires_tiles_in_level = 0;
9802   int num_standard_properties = 0;
9803   int font1_nr = FONT_TEXT_1;
9804   int font2_nr = FONT_TEXT_2;
9805   int font1_width = getFontWidth(font1_nr);
9806   int font1_height = getFontHeight(font1_nr);
9807   int font2_height = getFontHeight(font2_nr);
9808   int line1_height = font1_height + ED_GADGET_LINE_DISTANCE;
9809   int font2_yoffset = (font1_height - font2_height) / 2;
9810   int num_elements_text_len = strlen(num_elements_text) * font1_width;
9811   int num_similar_text_len = strlen(num_similar_text) * font1_width;
9812   int properties_text_len = strlen(properties_text) * font1_width;
9813   int xpos = ED_ELEMENT_SETTINGS_X(0);
9814   int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
9815   int i, x, y;
9816
9817   if (setup.editor.show_element_token)
9818   {
9819     int font3_nr = FONT_TEXT_3;
9820     int font3_height = getFontHeight(font3_nr);
9821
9822     DrawTextF(xpos, ypos, font3_nr,
9823               "[%s]", element_info[properties_element].token_name);
9824
9825     ypos += 2 * font3_height;
9826   }
9827
9828   // ----- print number of elements / percentage of this element in level
9829
9830   for (y = 0; y < lev_fieldy; y++)
9831   {
9832     for (x = 0; x < lev_fieldx; x++)
9833     {
9834       if (Tile[x][y] == properties_element)
9835       {
9836         num_elements_in_level++;
9837       }
9838       else if (IS_MM_WALL(Tile[x][y]) &&
9839                map_mm_wall_element(Tile[x][y]) == properties_element)
9840       {
9841         num_hires_tiles_in_level += numHiresTiles(Tile[x][y]);
9842       }
9843     }
9844   }
9845
9846   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
9847
9848   DrawTextS(xpos, ypos, font1_nr, num_elements_text);
9849
9850   if (num_hires_tiles_in_level > 0)
9851     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
9852               "%d wall tiles", num_hires_tiles_in_level);
9853   else if (num_elements_in_level > 0)
9854     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
9855               "%d (%.2f %%)", num_elements_in_level, percentage);
9856   else
9857     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
9858               none_text);
9859
9860   // ----- print number of similar elements / percentage of them in level
9861
9862   for (y = 0; y < lev_fieldy; y++)
9863   {
9864     for (x = 0; x < lev_fieldx; x++)
9865     {
9866       if (strEqual(element_info[Tile[x][y]].class_name,
9867                    element_info[properties_element].class_name))
9868       {
9869         num_similar_in_level++;
9870       }
9871     }
9872   }
9873
9874   if (num_similar_in_level != num_elements_in_level)
9875   {
9876     ypos += 1 * MAX(font1_height, font2_height);
9877
9878     percentage = num_similar_in_level * 100.0 / (lev_fieldx * lev_fieldy);
9879
9880     DrawTextS(xpos, ypos, font1_nr, num_similar_text);
9881
9882     if (num_similar_in_level > 0)
9883       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
9884                 "%d (%.2f %%)", num_similar_in_level, percentage);
9885     else
9886       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
9887                 none_text);
9888   }
9889
9890   ypos += 2 * MAX(font1_height, font2_height);
9891
9892   // ----- print standard properties of this element
9893
9894   DrawTextS(xpos, ypos, font1_nr, properties_text);
9895
9896   ypos += line1_height;
9897
9898   for (i = 0; properties[i].value != -1; i++)
9899   {
9900     if (!HAS_PROPERTY(properties_element, properties[i].value))
9901       continue;
9902
9903     DrawTextS(xpos, ypos, font2_nr, properties[i].text);
9904
9905     ypos += font2_height;
9906
9907     num_standard_properties++;
9908   }
9909
9910   if (num_standard_properties == 0)
9911   {
9912     DrawTextS(xpos + properties_text_len, ypos - line1_height + font2_yoffset,
9913               font2_nr, none_text);
9914
9915     ypos -= (line1_height - font1_height);
9916   }
9917
9918   ypos += MAX(font1_height, font2_height);
9919
9920   // ----- print special description of this element
9921
9922   PrintInfoText(description_text, font1_nr, xpos, ypos);
9923
9924   ypos += line1_height;
9925
9926   if (PrintElementDescriptionFromFile(filename, font2_nr, xpos, ypos) == 0)
9927     PrintInfoText(no_description_text, font1_nr, xpos, ypos - line1_height);
9928 }
9929
9930 #define TEXT_COLLECTING         "Score for collecting"
9931 #define TEXT_SMASHING           "Score for smashing"
9932 #define TEXT_SLURPING           "Score for slurping robot"
9933 #define TEXT_CRACKING           "Score for cracking"
9934 #define TEXT_AMOEBA_SPEED       "Speed of amoeba growth"
9935 #define TEXT_DURATION           "Duration when activated"
9936 #define TEXT_DELAY_ON           "Delay before activating"
9937 #define TEXT_DELAY_OFF          "Delay before deactivating"
9938 #define TEXT_DELAY_CHANGING     "Delay before changing"
9939 #define TEXT_DELAY_EXPLODING    "Delay before exploding"
9940 #define TEXT_DELAY_MOVING       "Delay before moving"
9941 #define TEXT_BALL_DELAY         "Element generation delay"
9942 #define TEXT_MOVE_SPEED         "Speed of android moving"
9943 #define TEXT_CLONE_SPEED        "Speed of android cloning"
9944 #define TEXT_GAME_OF_LIFE_1     "Min neighbours to survive"
9945 #define TEXT_GAME_OF_LIFE_2     "Max neighbours to survive"
9946 #define TEXT_GAME_OF_LIFE_3     "Min neighbours to create"
9947 #define TEXT_GAME_OF_LIFE_4     "Max neighbours to create"
9948 #define TEXT_TIME_BONUS         "Extra time to solve level"
9949
9950 static struct
9951 {
9952   int element;
9953   int *value;
9954   char *text;
9955 } elements_with_counter[] =
9956 {
9957   { EL_EMERALD,         &level.score[SC_EMERALD],       TEXT_COLLECTING },
9958   { EL_BD_DIAMOND,      &level.score[SC_EMERALD],       TEXT_COLLECTING },
9959   { EL_EMERALD_YELLOW,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
9960   { EL_EMERALD_RED,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
9961   { EL_EMERALD_PURPLE,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
9962   { EL_SP_INFOTRON,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
9963   { EL_DIAMOND,         &level.score[SC_DIAMOND],       TEXT_COLLECTING },
9964   { EL_CRYSTAL,         &level.score[SC_CRYSTAL],       TEXT_COLLECTING },
9965   { EL_PEARL,           &level.score[SC_PEARL],         TEXT_COLLECTING },
9966   { EL_BUG,             &level.score[SC_BUG],           TEXT_SMASHING   },
9967   { EL_BUG_RIGHT,       &level.score[SC_BUG],           TEXT_SMASHING   },
9968   { EL_BUG_UP,          &level.score[SC_BUG],           TEXT_SMASHING   },
9969   { EL_BUG_LEFT,        &level.score[SC_BUG],           TEXT_SMASHING   },
9970   { EL_BUG_DOWN,        &level.score[SC_BUG],           TEXT_SMASHING   },
9971   { EL_BD_BUTTERFLY,    &level.score[SC_BUG],           TEXT_SMASHING   },
9972   { EL_BD_BUTTERFLY_RIGHT,&level.score[SC_BUG],         TEXT_SMASHING   },
9973   { EL_BD_BUTTERFLY_UP,   &level.score[SC_BUG],         TEXT_SMASHING   },
9974   { EL_BD_BUTTERFLY_LEFT, &level.score[SC_BUG],         TEXT_SMASHING   },
9975   { EL_BD_BUTTERFLY_DOWN, &level.score[SC_BUG],         TEXT_SMASHING   },
9976   { EL_SP_ELECTRON,     &level.score[SC_BUG],           TEXT_SMASHING   },
9977   { EL_SPACESHIP,       &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9978   { EL_SPACESHIP_RIGHT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9979   { EL_SPACESHIP_UP,    &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9980   { EL_SPACESHIP_LEFT,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9981   { EL_SPACESHIP_DOWN,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9982   { EL_BD_FIREFLY,      &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9983   { EL_BD_FIREFLY_RIGHT,&level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9984   { EL_BD_FIREFLY_UP,   &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9985   { EL_BD_FIREFLY_LEFT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9986   { EL_BD_FIREFLY_DOWN, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9987   { EL_SP_SNIKSNAK,     &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9988   { EL_YAMYAM,          &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9989   { EL_YAMYAM_LEFT,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9990   { EL_YAMYAM_RIGHT,    &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9991   { EL_YAMYAM_UP,       &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9992   { EL_YAMYAM_DOWN,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9993   { EL_DARK_YAMYAM,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9994   { EL_ROBOT,           &level.score[SC_ROBOT],         TEXT_SMASHING   },
9995   { EL_PACMAN,          &level.score[SC_PACMAN],        TEXT_SMASHING   },
9996   { EL_PACMAN_RIGHT,    &level.score[SC_PACMAN],        TEXT_SMASHING   },
9997   { EL_PACMAN_UP,       &level.score[SC_PACMAN],        TEXT_SMASHING   },
9998   { EL_PACMAN_LEFT,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
9999   { EL_PACMAN_DOWN,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
10000   { EL_NUT,             &level.score[SC_NUT],           TEXT_CRACKING   },
10001   { EL_DYNAMITE,        &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
10002   { EL_EM_DYNAMITE,     &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
10003   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE], TEXT_COLLECTING },
10004   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE], TEXT_COLLECTING },
10005   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE], TEXT_COLLECTING },
10006   { EL_SHIELD_NORMAL,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
10007   { EL_SHIELD_DEADLY,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
10008   { EL_EXTRA_TIME,      &level.extra_time_score,        TEXT_COLLECTING },
10009   { EL_KEY_1,           &level.score[SC_KEY],           TEXT_COLLECTING },
10010   { EL_KEY_2,           &level.score[SC_KEY],           TEXT_COLLECTING },
10011   { EL_KEY_3,           &level.score[SC_KEY],           TEXT_COLLECTING },
10012   { EL_KEY_4,           &level.score[SC_KEY],           TEXT_COLLECTING },
10013   { EL_EM_KEY_1,        &level.score[SC_KEY],           TEXT_COLLECTING },
10014   { EL_EM_KEY_2,        &level.score[SC_KEY],           TEXT_COLLECTING },
10015   { EL_EM_KEY_3,        &level.score[SC_KEY],           TEXT_COLLECTING },
10016   { EL_EM_KEY_4,        &level.score[SC_KEY],           TEXT_COLLECTING },
10017   { EL_EMC_KEY_5,       &level.score[SC_KEY],           TEXT_COLLECTING },
10018   { EL_EMC_KEY_6,       &level.score[SC_KEY],           TEXT_COLLECTING },
10019   { EL_EMC_KEY_7,       &level.score[SC_KEY],           TEXT_COLLECTING },
10020   { EL_EMC_KEY_8,       &level.score[SC_KEY],           TEXT_COLLECTING },
10021   { EL_DC_KEY_WHITE,    &level.score[SC_KEY],           TEXT_COLLECTING },
10022   { EL_MM_KETTLE,       &level.score[SC_EMERALD],       TEXT_COLLECTING },
10023   { EL_DF_CELL,         &level.score[SC_EMERALD],       TEXT_COLLECTING },
10024   { EL_MM_KEY,          &level.score[SC_KEY],           TEXT_COLLECTING },
10025   { EL_MM_LIGHTBALL,    &level.score[SC_ELEM_BONUS],    TEXT_COLLECTING },
10026   { EL_MM_PACMAN,       &level.score[SC_PACMAN],        TEXT_SMASHING   },
10027   { EL_MM_PACMAN_RIGHT, &level.score[SC_PACMAN],        TEXT_SMASHING   },
10028   { EL_MM_PACMAN_UP,    &level.score[SC_PACMAN],        TEXT_SMASHING   },
10029   { EL_MM_PACMAN_LEFT,  &level.score[SC_PACMAN],        TEXT_SMASHING   },
10030   { EL_MM_PACMAN_DOWN,  &level.score[SC_PACMAN],        TEXT_SMASHING   },
10031   { EL_AMOEBA_WET,      &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
10032   { EL_AMOEBA_DRY,      &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
10033   { EL_AMOEBA_FULL,     &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
10034   { EL_BD_AMOEBA,       &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
10035   { EL_EMC_DRIPPER,     &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
10036   { EL_MAGIC_WALL,      &level.time_magic_wall,         TEXT_DURATION   },
10037   { EL_BD_MAGIC_WALL,   &level.time_magic_wall,         TEXT_DURATION   },
10038   { EL_DC_MAGIC_WALL,   &level.time_magic_wall,         TEXT_DURATION   },
10039   { EL_ROBOT_WHEEL,     &level.time_wheel,              TEXT_DURATION   },
10040
10041   { EL_TIMEGATE_SWITCH,   &level.time_timegate,         TEXT_DURATION   },
10042   { EL_DC_TIMEGATE_SWITCH,&level.time_timegate,         TEXT_DURATION   },
10043   { EL_LIGHT_SWITCH,    &level.time_light,              TEXT_DURATION   },
10044   { EL_LIGHT_SWITCH_ACTIVE, &level.time_light,          TEXT_DURATION   },
10045   { EL_SHIELD_NORMAL,   &level.shield_normal_time,      TEXT_DURATION   },
10046   { EL_SHIELD_DEADLY,   &level.shield_deadly_time,      TEXT_DURATION   },
10047   { EL_EXTRA_TIME,      &level.extra_time,              TEXT_TIME_BONUS },
10048   { EL_TIME_ORB_FULL,   &level.time_orb_time,           TEXT_TIME_BONUS },
10049   { EL_GAME_OF_LIFE,    &level.game_of_life[0],         TEXT_GAME_OF_LIFE_1 },
10050   { EL_GAME_OF_LIFE,    &level.game_of_life[1],         TEXT_GAME_OF_LIFE_2 },
10051   { EL_GAME_OF_LIFE,    &level.game_of_life[2],         TEXT_GAME_OF_LIFE_3 },
10052   { EL_GAME_OF_LIFE,    &level.game_of_life[3],         TEXT_GAME_OF_LIFE_4 },
10053   { EL_BIOMAZE,         &level.biomaze[0],              TEXT_GAME_OF_LIFE_1 },
10054   { EL_BIOMAZE,         &level.biomaze[1],              TEXT_GAME_OF_LIFE_2 },
10055   { EL_BIOMAZE,         &level.biomaze[2],              TEXT_GAME_OF_LIFE_3 },
10056   { EL_BIOMAZE,         &level.biomaze[3],              TEXT_GAME_OF_LIFE_4 },
10057
10058   { EL_EMC_ANDROID,     &level.android_move_time,       TEXT_MOVE_SPEED },
10059   { EL_EMC_ANDROID,     &level.android_clone_time,      TEXT_CLONE_SPEED },
10060   { EL_EMC_MAGIC_BALL,  &level.ball_time,               TEXT_BALL_DELAY },
10061   { EL_EMC_LENSES,      &level.lenses_score,            TEXT_COLLECTING },
10062   { EL_EMC_MAGNIFIER,   &level.magnify_score,           TEXT_COLLECTING },
10063   { EL_SPRING,          &level.slurp_score,             TEXT_SLURPING   },
10064   { EL_SPRING_LEFT,     &level.slurp_score,             TEXT_SLURPING   },
10065   { EL_SPRING_RIGHT,    &level.slurp_score,             TEXT_SLURPING   },
10066   { EL_EMC_LENSES,      &level.lenses_time,             TEXT_DURATION   },
10067   { EL_EMC_MAGNIFIER,   &level.magnify_time,            TEXT_DURATION   },
10068   { EL_MM_FUSE_ACTIVE,  &level.mm_time_fuse,            TEXT_DELAY_OFF  },
10069   { EL_MM_BOMB,         &level.mm_time_bomb,            TEXT_DELAY_EXPLODING },
10070   { EL_MM_GRAY_BALL,    &level.mm_time_ball,            TEXT_DELAY_CHANGING },
10071   { EL_MM_STEEL_BLOCK,  &level.mm_time_block,           TEXT_DELAY_MOVING },
10072   { EL_MM_WOODEN_BLOCK, &level.mm_time_block,           TEXT_DELAY_MOVING },
10073
10074   { -1,                 NULL,                           NULL            }
10075 };
10076
10077 static boolean checkPropertiesConfig(int element)
10078 {
10079   int i;
10080
10081   if (IS_GEM(element) ||
10082       IS_CUSTOM_ELEMENT(element) ||
10083       IS_GROUP_ELEMENT(element) ||
10084       IS_EMPTY_ELEMENT(element) ||
10085       IS_BALLOON_ELEMENT(element) ||
10086       IS_ENVELOPE(element) ||
10087       IS_MM_ENVELOPE(element) ||
10088       IS_MM_MCDUFFIN(element) ||
10089       IS_DF_LASER(element) ||
10090       IS_PLAYER_ELEMENT(element) ||
10091       HAS_EDITOR_CONTENT(element) ||
10092       CAN_GROW(element) ||
10093       COULD_MOVE_INTO_ACID(element) ||
10094       MAYBE_DONT_COLLIDE_WITH(element) ||
10095       element == EL_SOKOBAN_OBJECT ||
10096       element == EL_SOKOBAN_FIELD_EMPTY ||
10097       element == EL_SOKOBAN_FIELD_FULL)
10098     return TRUE;
10099   else
10100     for (i = 0; elements_with_counter[i].element != -1; i++)
10101       if (elements_with_counter[i].element == element)
10102         return TRUE;
10103
10104   return FALSE;
10105 }
10106
10107 static void SetAutomaticNumberOfGemsNeeded(void)
10108 {
10109   int x, y;
10110
10111   if (!level.auto_count_gems)
10112     return;
10113
10114   level.gems_needed = 0;
10115
10116   for (x = 0; x < lev_fieldx; x++)
10117   {
10118     for (y = 0; y < lev_fieldy; y++)
10119     {
10120       int element = Tile[x][y];
10121
10122       switch (element)
10123       {
10124         case EL_EMERALD:
10125         case EL_EMERALD_YELLOW:
10126         case EL_EMERALD_RED:
10127         case EL_EMERALD_PURPLE:
10128         case EL_BD_DIAMOND:
10129         case EL_WALL_EMERALD:
10130         case EL_WALL_EMERALD_YELLOW:
10131         case EL_WALL_EMERALD_RED:
10132         case EL_WALL_EMERALD_PURPLE:
10133         case EL_WALL_BD_DIAMOND:
10134         case EL_NUT:
10135         case EL_SP_INFOTRON:
10136         case EL_MM_KETTLE:
10137         case EL_DF_CELL:
10138           level.gems_needed++;
10139           break;
10140
10141         case EL_DIAMOND:
10142         case EL_WALL_DIAMOND:
10143           level.gems_needed += 3;
10144           break;
10145
10146         case EL_PEARL:
10147         case EL_WALL_PEARL:
10148           level.gems_needed += 5;
10149           break;
10150
10151         case EL_CRYSTAL:
10152         case EL_WALL_CRYSTAL:
10153           level.gems_needed += 8;
10154           break;
10155
10156         default:
10157           break;
10158       }
10159     }
10160   }
10161
10162   ModifyEditorCounterValue(ED_COUNTER_ID_LEVEL_GEMSLIMIT, level.gems_needed);
10163 }
10164
10165 static void DrawPropertiesConfig(void)
10166 {
10167   boolean draw_footer_line = FALSE;
10168   int max_num_element_counters = 4;
10169   int num_element_counters = 0;
10170   int i;
10171
10172   if (!checkPropertiesConfig(properties_element))
10173   {
10174     int xpos = ED_ELEMENT_SETTINGS_X(0);
10175     int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
10176
10177     PrintInfoText("No configuration options available.",
10178                   FONT_TEXT_1, xpos, ypos);
10179
10180     return;
10181   }
10182
10183   // check if there are elements where a value can be chosen for
10184   for (i = 0; elements_with_counter[i].element != -1; i++)
10185   {
10186     if (elements_with_counter[i].element == properties_element)
10187     {
10188       int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
10189
10190       counterbutton_info[counter_id].y =
10191         ED_ELEMENT_SETTINGS_YPOS(
10192                 (HAS_EDITOR_CONTENT(properties_element)      ? 1 : 0) +
10193                 (CAN_GROW(properties_element)                ? 1 : 0) +
10194                 (COULD_MOVE_INTO_ACID(properties_element)    ? 1 : 0) +
10195                 (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0) +
10196                 (properties_element == EL_EMC_MAGIC_BALL     ? 2 : 0) +
10197                 num_element_counters);
10198
10199       counterbutton_info[counter_id].value = elements_with_counter[i].value;
10200       counterbutton_info[counter_id].text_right= elements_with_counter[i].text;
10201
10202       if (properties_element == EL_GAME_OF_LIFE ||
10203           properties_element == EL_BIOMAZE)
10204       {
10205         counterbutton_info[counter_id].min_value = 0;   // min neighbours
10206         counterbutton_info[counter_id].max_value = 8;   // max neighbours
10207       }
10208       else
10209       {
10210         // !!! CHANGE THIS FOR CERTAIN ELEMENTS !!!
10211         counterbutton_info[counter_id].min_value = MIN_SCORE;
10212         counterbutton_info[counter_id].max_value = MAX_SCORE;
10213       }
10214
10215       MapCounterButtons(counter_id);
10216
10217       num_element_counters++;
10218       if (num_element_counters >= max_num_element_counters)
10219         break;
10220     }
10221   }
10222
10223   if (HAS_EDITOR_CONTENT(properties_element))
10224   {
10225     // draw stickybutton gadget
10226     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10227
10228     if (IS_AMOEBOID(properties_element))
10229       MapDrawingArea(ED_DRAWING_ID_AMOEBA_CONTENT);
10230     else if (properties_element == EL_YAMYAM ||
10231              properties_element == EL_YAMYAM_LEFT ||
10232              properties_element == EL_YAMYAM_RIGHT ||
10233              properties_element == EL_YAMYAM_UP ||
10234              properties_element == EL_YAMYAM_DOWN)
10235       DrawYamYamContentAreas();
10236     else if (properties_element == EL_EMC_MAGIC_BALL)
10237     {
10238       DrawMagicBallContentAreas();
10239
10240       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT);
10241       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE);
10242     }
10243     else if (properties_element == EL_EMC_ANDROID)
10244       DrawAndroidElementArea();
10245     else if (properties_element == EL_MM_GRAY_BALL)
10246     {
10247       MapCounterButtons(ED_COUNTER_ID_MM_BALL_CONTENT);
10248       MapSelectboxGadget(ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE);
10249       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT);
10250       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EXPLODE_MM_BALL);
10251
10252       DrawMMBallContentArea();
10253     }
10254   }
10255
10256   if (IS_PLAYER_ELEMENT(properties_element))
10257   {
10258     int player_nr = GET_PLAYER_NR(properties_element);
10259
10260     // these properties can be set for every player individually
10261
10262     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
10263     {
10264       drawingarea_info[ED_DRAWING_ID_START_ELEMENT].value =
10265         &level.start_element[player_nr];
10266       drawingarea_info[ED_DRAWING_ID_ARTWORK_ELEMENT].value =
10267         &level.artwork_element[player_nr];
10268       drawingarea_info[ED_DRAWING_ID_EXPLOSION_ELEMENT].value =
10269         &level.explosion_element[player_nr];
10270
10271       checkbutton_info[ED_CHECKBUTTON_ID_USE_START_ELEMENT].value =
10272         &level.use_start_element[player_nr];
10273       checkbutton_info[ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT].value =
10274         &level.use_artwork_element[player_nr];
10275       checkbutton_info[ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT].value =
10276         &level.use_explosion_element[player_nr];
10277       checkbutton_info[ED_CHECKBUTTON_ID_INITIAL_GRAVITY].value =
10278         &level.initial_player_gravity[player_nr];
10279
10280       selectbox_info[ED_SELECTBOX_ID_PLAYER_SPEED].value =
10281         &level.initial_player_stepsize[player_nr];
10282
10283       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID);
10284       MapCheckbuttonGadget(properties_element == EL_SP_MURPHY ?
10285                            ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD :
10286                            ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
10287       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
10288       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
10289       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
10290       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
10291       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_LAZY_RELOCATION);
10292       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
10293       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
10294       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
10295       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_GRAVITY);
10296       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
10297       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER);
10298
10299       MapDrawingArea(ED_DRAWING_ID_START_ELEMENT);
10300       MapDrawingArea(ED_DRAWING_ID_ARTWORK_ELEMENT);
10301       MapDrawingArea(ED_DRAWING_ID_EXPLOSION_ELEMENT);
10302
10303       MapSelectboxGadget(ED_SELECTBOX_ID_PLAYER_SPEED);
10304     }
10305     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
10306     {
10307       drawingarea_info[ED_DRAWING_ID_INVENTORY_CONTENT].value =
10308         &level.initial_inventory_content[player_nr][0];
10309
10310       counterbutton_info[ED_COUNTER_ID_INVENTORY_SIZE].value =
10311         &level.initial_inventory_size[player_nr];
10312
10313       checkbutton_info[ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY].value =
10314         &level.use_initial_inventory[player_nr];
10315
10316       // draw checkbutton gadgets
10317       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
10318       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT);
10319       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE);
10320
10321       // draw counter gadgets
10322       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
10323
10324       // draw drawing area gadgets
10325       DrawPlayerInitialInventoryArea(properties_element);
10326     }
10327   }
10328
10329   if (IS_GEM(properties_element))
10330     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
10331
10332   if (properties_element == EL_EM_DYNAMITE)
10333     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
10334
10335   if (COULD_MOVE_INTO_ACID(properties_element) &&
10336       !IS_PLAYER_ELEMENT(properties_element) &&
10337       (!IS_CUSTOM_ELEMENT(properties_element) ||
10338        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
10339   {
10340     // set position for checkbutton for "can move into acid"
10341     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
10342       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
10343     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
10344       ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 7 :
10345                                IS_BALLOON_ELEMENT(properties_element) ||
10346                                HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
10347
10348     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
10349   }
10350
10351   if (MAYBE_DONT_COLLIDE_WITH(properties_element))
10352     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH);
10353
10354   if (properties_element == EL_SPRING ||
10355       properties_element == EL_SPRING_LEFT ||
10356       properties_element == EL_SPRING_RIGHT)
10357     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_SPRING_BUG);
10358
10359   if (properties_element == EL_TIME_ORB_FULL)
10360     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG);
10361
10362   if (properties_element == EL_GAME_OF_LIFE ||
10363       properties_element == EL_BIOMAZE)
10364     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_LIFE_BUGS);
10365
10366   if (CAN_GROW(properties_element))
10367   {
10368     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
10369       ED_ELEMENT_SETTINGS_YPOS(HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
10370
10371     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
10372   }
10373
10374   if (properties_element == EL_SOKOBAN_FIELD_EMPTY)
10375     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED);
10376
10377   if (properties_element == EL_SOKOBAN_OBJECT)
10378     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED);
10379
10380   if (properties_element == EL_SOKOBAN_OBJECT ||
10381       properties_element == EL_SOKOBAN_FIELD_EMPTY ||
10382       properties_element == EL_SOKOBAN_FIELD_FULL)
10383   {
10384     checkbutton_info[ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN].y =
10385       ED_ELEMENT_SETTINGS_XPOS(properties_element == EL_SOKOBAN_FIELD_FULL ?
10386                                0 : 1);
10387
10388     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN);
10389   }
10390
10391   if (IS_BALLOON_ELEMENT(properties_element))
10392     MapSelectboxGadget(ED_SELECTBOX_ID_WIND_DIRECTION);
10393
10394   if (IS_ENVELOPE(properties_element) ||
10395       IS_MM_ENVELOPE(properties_element))
10396   {
10397     int counter1_id = ED_COUNTER_ID_ENVELOPE_XSIZE;
10398     int counter2_id = ED_COUNTER_ID_ENVELOPE_YSIZE;
10399     int button1_id = ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP;
10400     int button2_id = ED_CHECKBUTTON_ID_ENVELOPE_CENTERED;
10401     int envelope_nr = ENVELOPE_NR(properties_element);
10402
10403     counterbutton_info[counter1_id].value = &level.envelope[envelope_nr].xsize;
10404     counterbutton_info[counter2_id].value = &level.envelope[envelope_nr].ysize;
10405
10406     checkbutton_info[button1_id].value = &level.envelope[envelope_nr].autowrap;
10407     checkbutton_info[button2_id].value = &level.envelope[envelope_nr].centered;
10408
10409     // display counter to choose size of envelope text area
10410     MapCounterButtons(counter1_id);
10411     MapCounterButtons(counter2_id);
10412
10413     // display checkbuttons to choose auto-wrap and alignment properties
10414     MapCheckbuttonGadget(button1_id);
10415     MapCheckbuttonGadget(button2_id);
10416
10417     DrawEnvelopeTextArea(envelope_nr);
10418   }
10419
10420   if (IS_MM_MCDUFFIN(properties_element))
10421   {
10422     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_RED);
10423     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_GREEN);
10424     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_BLUE);
10425   }
10426
10427   if (IS_DF_LASER(properties_element))
10428   {
10429     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_RED);
10430     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_GREEN);
10431     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_BLUE);
10432   }
10433
10434   if (IS_CUSTOM_ELEMENT(properties_element))
10435   {
10436     // draw stickybutton gadget
10437     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10438
10439     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
10440     {
10441       // draw checkbutton gadgets
10442       for (i =  ED_CHECKBUTTON_ID_CUSTOM1_FIRST;
10443            i <= ED_CHECKBUTTON_ID_CUSTOM1_LAST; i++)
10444         MapCheckbuttonGadget(i);
10445
10446       // draw counter gadgets
10447       for (i =  ED_COUNTER_ID_CUSTOM1_FIRST;
10448            i <= ED_COUNTER_ID_CUSTOM1_LAST; i++)
10449         MapCounterButtons(i);
10450
10451       // draw selectbox gadgets
10452       for (i =  ED_SELECTBOX_ID_CUSTOM1_FIRST;
10453            i <= ED_SELECTBOX_ID_CUSTOM1_LAST; i++)
10454         MapSelectboxGadget(i);
10455
10456       // draw textbutton gadgets
10457       MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
10458
10459       // draw text input gadgets
10460       MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
10461
10462       // draw drawing area gadgets
10463       MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
10464
10465       draw_footer_line = TRUE;
10466     }
10467     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
10468     {
10469       // draw checkbutton gadgets
10470       for (i =  ED_CHECKBUTTON_ID_CUSTOM2_FIRST;
10471            i <= ED_CHECKBUTTON_ID_CUSTOM2_LAST; i++)
10472         MapCheckbuttonGadget(i);
10473
10474       // draw counter gadgets
10475       for (i =  ED_COUNTER_ID_CUSTOM2_FIRST;
10476            i <= ED_COUNTER_ID_CUSTOM2_LAST; i++)
10477         MapCounterButtons(i);
10478
10479       // draw selectbox gadgets
10480       for (i =  ED_SELECTBOX_ID_CUSTOM2_FIRST;
10481            i <= ED_SELECTBOX_ID_CUSTOM2_LAST; i++)
10482         MapSelectboxGadget(i);
10483
10484       // draw drawing area gadgets
10485       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_ENTER);
10486       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_LEAVE);
10487       DrawCustomContentArea();
10488     }
10489   }
10490   else if (IS_GROUP_ELEMENT(properties_element))
10491   {
10492     // draw stickybutton gadget
10493     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10494
10495     // draw checkbutton gadgets
10496     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
10497     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
10498
10499     // draw counter gadgets
10500     MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
10501
10502     // draw selectbox gadgets
10503     MapSelectboxGadget(ED_SELECTBOX_ID_GROUP_CHOICE_MODE);
10504
10505     // draw textbutton gadgets
10506     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
10507
10508     // draw drawing area gadgets
10509     DrawGroupElementArea();
10510
10511     // draw text input gadgets
10512     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
10513
10514     // draw drawing area gadgets
10515     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
10516
10517     draw_footer_line = TRUE;
10518   }
10519   else if (IS_EMPTY_ELEMENT(properties_element))
10520   {
10521     // draw stickybutton gadget
10522     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10523
10524     // draw checkbutton gadgets
10525     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
10526     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
10527
10528     // draw textbutton gadgets
10529     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
10530
10531     // draw drawing area gadgets
10532     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
10533
10534     draw_footer_line = TRUE;
10535   }
10536
10537   // draw little footer border line above CE/GE use/save template gadgets
10538   if (draw_footer_line)
10539   {
10540     struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10541     struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10542     int gd_x = gd->x + gd_gi1->border.width / 2;
10543     int gd_y = gd->y + gd_gi1->height - 1;
10544     Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
10545
10546     if (tab_color != BLACK_PIXEL)               // black => transparent
10547       FillRectangle(drawto,
10548                     SX + ED_ELEMENT_SETTINGS_X(0),
10549                     SY + ED_ELEMENT_SETTINGS_Y(14) - ED_SETTINGS_TABS_YOFFSET -
10550                     ED_TAB_BAR_HEIGHT,
10551                     getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10552   }
10553 }
10554
10555 static void DrawPropertiesChangeDrawingAreas(void)
10556 {
10557   if (IS_CUSTOM_ELEMENT(properties_element))
10558   {
10559     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TARGET);
10560     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER);
10561     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_ACTION);
10562
10563     DrawCustomChangeContentArea();
10564   }
10565
10566   redraw_mask |= REDRAW_FIELD;
10567 }
10568
10569 static void DrawPropertiesChange(void)
10570 {
10571   int i;
10572
10573   // needed to initially set selectbox options for special action options
10574   setSelectboxSpecialActionOptions();
10575
10576   // draw stickybutton gadget
10577   MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10578
10579   // draw checkbutton gadgets
10580   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
10581        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
10582     MapCheckbuttonGadget(i);
10583
10584   // draw counter gadgets
10585   for (i =  ED_COUNTER_ID_CHANGE_FIRST;
10586        i <= ED_COUNTER_ID_CHANGE_LAST; i++)
10587     MapCounterButtons(i);
10588
10589   // draw selectbox gadgets
10590   for (i =  ED_SELECTBOX_ID_CHANGE_FIRST;
10591        i <= ED_SELECTBOX_ID_CHANGE_LAST; i++)
10592     MapSelectboxGadget(i);
10593
10594   // draw textbutton gadgets
10595   for (i =  ED_TEXTBUTTON_ID_CHANGE_FIRST;
10596        i <= ED_TEXTBUTTON_ID_CHANGE_LAST; i++)
10597     MapTextbuttonGadget(i);
10598
10599   // draw graphicbutton gadgets
10600   for (i =  ED_GRAPHICBUTTON_ID_CHANGE_FIRST;
10601        i <= ED_GRAPHICBUTTON_ID_CHANGE_LAST; i++)
10602     MapGraphicbuttonGadget(i);
10603
10604   // draw drawing area gadgets
10605   DrawPropertiesChangeDrawingAreas();
10606 }
10607
10608 static void DrawEditorElementAnimation(int x, int y)
10609 {
10610   int graphic = el2img(properties_element);
10611   int frame = (ANIM_MODE(graphic) == ANIM_CE_VALUE ?
10612                custom_element.ce_value_fixed_initial :
10613                ANIM_MODE(graphic) == ANIM_CE_SCORE ?
10614                custom_element.collect_score_initial : FrameCounter);
10615
10616   DrawFixedGraphicAnimationExt(drawto, x, y, graphic, frame, NO_MASKING);
10617 }
10618
10619 static void DrawEditorElementName(int x, int y, int font_nr)
10620 {
10621   char *element_name = getElementInfoText(properties_element);
10622   int font_width = getFontWidth(font_nr);
10623   int font_height = getFontHeight(font_nr);
10624   int max_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_X(0);
10625   int max_chars_per_line = max_text_width / font_width;
10626
10627   if (strlen(element_name) <= max_chars_per_line)
10628     DrawTextS(x, y, font_nr, element_name);
10629   else
10630   {
10631     char buffer[max_chars_per_line + 1];
10632     int next_pos = max_chars_per_line;
10633
10634     strncpy(buffer, element_name, max_chars_per_line);
10635     buffer[max_chars_per_line] = '\0';
10636
10637     if (element_name[max_chars_per_line] == ' ')
10638       next_pos++;
10639     else
10640     {
10641       int i;
10642
10643       for (i = max_chars_per_line - 1; i >= 0; i--)
10644         if (buffer[i] == ' ')
10645           break;
10646
10647       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
10648       {
10649         buffer[i] = '\0';
10650         next_pos = i + 1;
10651       }
10652     }
10653
10654     DrawTextS(x, y - font_height / 2, font_nr, buffer);
10655
10656     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
10657     buffer[max_chars_per_line] = '\0';
10658
10659     DrawTextS(x, y + font_height / 2, font_nr, buffer);
10660   }
10661 }
10662
10663 static void DrawPropertiesWindow(void)
10664 {
10665   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
10666   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
10667   int border_size = gd->border_size;
10668   int font_nr = FONT_TEXT_1;
10669   int font_height = getFontHeight(font_nr);
10670   int xoffset = TILEX + element_border + 3 * border_size;
10671   int yoffset = (TILEY - font_height) / 2;
10672   int x1 = editor.settings.element_graphic.x + element_border;
10673   int y1 = editor.settings.element_graphic.y + element_border;
10674   int x2 = (editor.settings.element_name.x == -1 ? x1 + xoffset :
10675             editor.settings.element_name.x);
10676   int y2 = (editor.settings.element_name.y == -1 ? y1 + yoffset :
10677             editor.settings.element_name.y);
10678   char *text = "Element Settings";
10679   int font2_nr = FONT_TITLE_1;
10680   struct MenuPosInfo *pos = &editor.settings.headline;
10681   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font2_nr), pos->align);
10682   int sy = SY + pos->y;
10683
10684   stick_element_properties_window = FALSE;
10685
10686   // make sure that previous properties edit mode exists for this element
10687   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG_2 &&
10688       !IS_CUSTOM_ELEMENT(properties_element))
10689     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
10690
10691   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
10692       !IS_PLAYER_ELEMENT(properties_element) &&
10693       !IS_CUSTOM_ELEMENT(properties_element))
10694     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
10695
10696   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
10697       (IS_PLAYER_ELEMENT(properties_element) ||
10698        IS_CUSTOM_ELEMENT(properties_element)))
10699     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
10700
10701   CopyElementPropertiesToEditor(properties_element);
10702
10703   UnmapLevelEditorFieldGadgets();
10704   UnmapLevelEditorToolboxDrawingGadgets();
10705   UnmapLevelEditorToolboxCustomGadgets();
10706
10707   MapLevelEditorToolboxCustomGadgetsIfNeeded();
10708
10709   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10710   ClearField();
10711
10712   DrawText(sx, sy, text, font2_nr);
10713
10714   FrameCounter = 0;     // restart animation frame counter
10715
10716   DrawElementBorder(SX + x1, SY + y1, TILEX, TILEY, FALSE);
10717   DrawEditorElementAnimation(SX + x1, SY + y1);
10718   DrawEditorElementName(x2, y2, font_nr);
10719
10720   DrawPropertiesTabulatorGadgets();
10721
10722   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
10723     DrawPropertiesInfo();
10724   else if (edit_mode_properties == ED_MODE_PROPERTIES_CHANGE)
10725     DrawPropertiesChange();
10726   else  // (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG[_1|_2])
10727     DrawPropertiesConfig();
10728 }
10729
10730 static void DrawPaletteWindow(void)
10731 {
10732   int i;
10733
10734   UnmapLevelEditorFieldGadgets();
10735
10736   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10737   ClearField();
10738
10739   // map buttons to select elements
10740   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
10741     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
10742   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
10743   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
10744   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
10745 }
10746
10747 static void UpdateCustomElementGraphicGadgets(void)
10748 {
10749   int i;
10750
10751   InitElementPropertiesGfxElement();
10752
10753   ModifyEditorElementList();
10754   RedrawDrawingElements();
10755
10756   // force redraw of all mapped drawing area gadgets
10757   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
10758   {
10759     struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[i].gadget_id];
10760
10761     if (gi->mapped)
10762       MapDrawingArea(i);
10763   }
10764 }
10765
10766 static int getOpenDirectionFromTube(int element)
10767 {
10768   switch (element)
10769   {
10770     case EL_TUBE_LEFT_UP:               return (MV_LEFT | MV_UP);
10771     case EL_TUBE_LEFT_DOWN:             return (MV_LEFT | MV_DOWN);
10772     case EL_TUBE_RIGHT_UP:              return (MV_RIGHT | MV_UP);
10773     case EL_TUBE_RIGHT_DOWN:            return (MV_RIGHT | MV_DOWN);
10774     case EL_TUBE_HORIZONTAL:            return (MV_HORIZONTAL);
10775     case EL_TUBE_HORIZONTAL_UP:         return (MV_HORIZONTAL | MV_UP);
10776     case EL_TUBE_HORIZONTAL_DOWN:       return (MV_HORIZONTAL | MV_DOWN);
10777     case EL_TUBE_VERTICAL:              return (MV_VERTICAL);
10778     case EL_TUBE_VERTICAL_LEFT:         return (MV_VERTICAL | MV_LEFT);
10779     case EL_TUBE_VERTICAL_RIGHT:        return (MV_VERTICAL | MV_RIGHT);
10780     case EL_TUBE_ANY:                   return (MV_ANY_DIRECTION);
10781   }
10782
10783   return MV_NONE;
10784 }
10785
10786 static int getTubeFromOpenDirection(int direction)
10787 {
10788   switch (direction)
10789   {
10790     case (MV_LEFT | MV_UP):             return EL_TUBE_LEFT_UP;
10791     case (MV_LEFT | MV_DOWN):           return EL_TUBE_LEFT_DOWN;
10792     case (MV_RIGHT | MV_UP):            return EL_TUBE_RIGHT_UP;
10793     case (MV_RIGHT | MV_DOWN):          return EL_TUBE_RIGHT_DOWN;
10794     case (MV_HORIZONTAL):               return EL_TUBE_HORIZONTAL;
10795     case (MV_HORIZONTAL | MV_UP):       return EL_TUBE_HORIZONTAL_UP;
10796     case (MV_HORIZONTAL | MV_DOWN):     return EL_TUBE_HORIZONTAL_DOWN;
10797     case (MV_VERTICAL):                 return EL_TUBE_VERTICAL;
10798     case (MV_VERTICAL | MV_LEFT):       return EL_TUBE_VERTICAL_LEFT;
10799     case (MV_VERTICAL | MV_RIGHT):      return EL_TUBE_VERTICAL_RIGHT;
10800     case (MV_ANY_DIRECTION):            return EL_TUBE_ANY;
10801
10802     // if only one direction, fall back to simple tube with that direction
10803     case (MV_LEFT):                     return EL_TUBE_HORIZONTAL;
10804     case (MV_RIGHT):                    return EL_TUBE_HORIZONTAL;
10805     case (MV_UP):                       return EL_TUBE_VERTICAL;
10806     case (MV_DOWN):                     return EL_TUBE_VERTICAL;
10807   }
10808
10809   return EL_EMPTY;
10810 }
10811
10812 static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
10813 {
10814   int element_new = getTubeFromOpenDirection(direction);
10815
10816   return (element_new != EL_EMPTY ? element_new : element_old);
10817 }
10818
10819 static int getOpenDirectionFromBelt(int element)
10820 {
10821   int belt_dir = getBeltDirFromBeltElement(element);
10822
10823   return (belt_dir == MV_LEFT ? MV_RIGHT :
10824           belt_dir == MV_RIGHT ? MV_LEFT :
10825           belt_dir == MV_NONE ? MV_HORIZONTAL : belt_dir);
10826 }
10827
10828 static int getBeltFromNrAndOpenDirection(int nr, int direction)
10829 {
10830   int belt_dir = (direction == MV_LEFT ? MV_RIGHT :
10831                   direction == MV_RIGHT ? MV_LEFT :
10832                   direction == MV_HORIZONTAL ? MV_NONE : direction);
10833
10834   if (direction == MV_NONE)
10835     return EL_EMPTY;
10836
10837   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
10838 }
10839
10840 static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
10841                                                  int element_old)
10842 {
10843   int element_new = getBeltFromNrAndOpenDirection(nr, direction);
10844
10845   return (element_new != EL_EMPTY ? element_new : element_old);
10846 }
10847
10848 static int getOpenDirectionFromPool(int element)
10849 {
10850   switch (element)
10851   {
10852     case EL_ACID_POOL_TOPLEFT:          return (MV_DOWN | MV_RIGHT);
10853     case EL_ACID_POOL_TOPRIGHT:         return (MV_DOWN | MV_LEFT);
10854     case EL_ACID_POOL_BOTTOMLEFT:       return (MV_UP | MV_RIGHT);
10855     case EL_ACID_POOL_BOTTOMRIGHT:      return (MV_UP | MV_LEFT);
10856     case EL_ACID_POOL_BOTTOM:           return (MV_HORIZONTAL | MV_UP);
10857     case EL_ACID:                       return (MV_HORIZONTAL | MV_DOWN);
10858   }
10859
10860   return MV_NONE;
10861 }
10862
10863 static int getPoolFromOpenDirection(int direction)
10864 {
10865   switch (direction)
10866   {
10867     case (MV_DOWN | MV_RIGHT):          return EL_ACID_POOL_TOPLEFT;
10868     case (MV_DOWN | MV_LEFT):           return EL_ACID_POOL_TOPRIGHT;
10869     case (MV_UP | MV_RIGHT):            return EL_ACID_POOL_BOTTOMLEFT;
10870     case (MV_UP | MV_LEFT):             return EL_ACID_POOL_BOTTOMRIGHT;
10871     case (MV_HORIZONTAL | MV_UP):       return EL_ACID_POOL_BOTTOM;
10872     case (MV_HORIZONTAL | MV_DOWN):     return EL_ACID;
10873   }
10874
10875   return EL_EMPTY;
10876 }
10877
10878 static int getPoolFromOpenDirectionExt(int direction, int help_element)
10879 {
10880   int element = getPoolFromOpenDirection(direction);
10881   int help_direction = getOpenDirectionFromPool(help_element);
10882
10883   if (element == EL_EMPTY)
10884   {
10885     int help_direction_vertical = help_direction & MV_VERTICAL;
10886
10887     element = getPoolFromOpenDirection(direction | help_direction_vertical);
10888   }
10889
10890   if (element == EL_EMPTY)
10891   {
10892     int help_direction_horizontal = help_direction & MV_HORIZONTAL;
10893
10894     element = getPoolFromOpenDirection(direction | help_direction_horizontal);
10895   }
10896
10897   return element;
10898 }
10899
10900 static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
10901 {
10902   int element_new = getPoolFromOpenDirectionExt(direction, element_old);
10903
10904   return (element_new != EL_EMPTY ? element_new : element_old);
10905 }
10906
10907 static int getOpenDirectionFromPillar(int element)
10908 {
10909   switch (element)
10910   {
10911     case EL_EMC_WALL_1:                 return (MV_DOWN);
10912     case EL_EMC_WALL_2:                 return (MV_VERTICAL);
10913     case EL_EMC_WALL_3:                 return (MV_UP);
10914   }
10915
10916   return MV_NONE;
10917 }
10918
10919 static int getPillarFromOpenDirection(int direction)
10920 {
10921   switch (direction)
10922   {
10923     case (MV_DOWN):                     return EL_EMC_WALL_1;
10924     case (MV_VERTICAL):                 return EL_EMC_WALL_2;
10925     case (MV_UP):                       return EL_EMC_WALL_3;
10926   }
10927
10928   return EL_EMPTY;
10929 }
10930
10931 static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
10932 {
10933   int element_new = getPillarFromOpenDirection(direction);
10934
10935   return (element_new != EL_EMPTY ? element_new : element_old);
10936 }
10937
10938 static int getOpenDirectionFromSteel2(int element)
10939 {
10940   switch (element)
10941   {
10942     case EL_DC_STEELWALL_2_LEFT:        return (MV_RIGHT);
10943     case EL_DC_STEELWALL_2_RIGHT:       return (MV_LEFT);
10944     case EL_DC_STEELWALL_2_TOP:         return (MV_DOWN);
10945     case EL_DC_STEELWALL_2_BOTTOM:      return (MV_UP);
10946     case EL_DC_STEELWALL_2_HORIZONTAL:  return (MV_HORIZONTAL);
10947     case EL_DC_STEELWALL_2_VERTICAL:    return (MV_VERTICAL);
10948     case EL_DC_STEELWALL_2_MIDDLE:      return (MV_ANY_DIRECTION);
10949     case EL_DC_STEELWALL_2_SINGLE:      return (MV_NONE);
10950   }
10951
10952   return MV_NONE;
10953 }
10954
10955 static int getSteel2FromOpenDirection(int direction)
10956 {
10957   switch (direction)
10958   {
10959     case (MV_RIGHT):                    return EL_DC_STEELWALL_2_LEFT;
10960     case (MV_LEFT):                     return EL_DC_STEELWALL_2_RIGHT;
10961     case (MV_DOWN):                     return EL_DC_STEELWALL_2_TOP;
10962     case (MV_UP):                       return EL_DC_STEELWALL_2_BOTTOM;
10963     case (MV_HORIZONTAL):               return EL_DC_STEELWALL_2_HORIZONTAL;
10964     case (MV_VERTICAL):                 return EL_DC_STEELWALL_2_VERTICAL;
10965     case (MV_ANY_DIRECTION):            return EL_DC_STEELWALL_2_MIDDLE;
10966     case (MV_NONE):                     return EL_DC_STEELWALL_2_SINGLE;
10967   }
10968
10969   return EL_EMPTY;
10970 }
10971
10972 static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
10973 {
10974   int element_new = getSteel2FromOpenDirection(direction);
10975
10976   return (element_new != EL_EMPTY ? element_new : element_old);
10977 }
10978
10979 static int getOpenDirectionFromChip(int element)
10980 {
10981   switch (element)
10982   {
10983     case EL_SP_CHIP_SINGLE:             return (MV_NONE);
10984     case EL_SP_CHIP_LEFT:               return (MV_RIGHT);
10985     case EL_SP_CHIP_RIGHT:              return (MV_LEFT);
10986     case EL_SP_CHIP_TOP:                return (MV_DOWN);
10987     case EL_SP_CHIP_BOTTOM:             return (MV_UP);
10988   }
10989
10990   return MV_NONE;
10991 }
10992
10993 static int getChipFromOpenDirection(int direction)
10994 {
10995   switch (direction)
10996   {
10997     case (MV_NONE):                     return EL_SP_CHIP_SINGLE;
10998     case (MV_LEFT):                     return EL_SP_CHIP_RIGHT;
10999     case (MV_RIGHT):                    return EL_SP_CHIP_LEFT;
11000     case (MV_UP):                       return EL_SP_CHIP_BOTTOM;
11001     case (MV_DOWN):                     return EL_SP_CHIP_TOP;
11002   }
11003
11004   return EL_EMPTY;
11005 }
11006
11007 static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
11008 {
11009   int element_new = getChipFromOpenDirection(direction);
11010
11011   return (element_new != EL_EMPTY ? element_new : element_old);
11012 }
11013
11014 static int getClosedTube(int x, int y)
11015 {
11016   struct XY *xy = xy_directions;
11017   int element_old = IntelliDrawBuffer[x][y];
11018   int direction_old = getOpenDirectionFromTube(element_old);
11019   int direction_new = MV_NONE;
11020   int i;
11021
11022   for (i = 0; i < NUM_DIRECTIONS; i++)
11023   {
11024     int xx = x + xy[i].x;
11025     int yy = y + xy[i].y;
11026     int dir = MV_DIR_FROM_BIT(i);
11027     int dir_opposite = MV_DIR_OPPOSITE(dir);
11028
11029     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
11030         (direction_old & dir) &&
11031         (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11032       direction_new |= dir;
11033   }
11034
11035   return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
11036 }
11037
11038 static int getClosedBelt(int x, int y)
11039 {
11040   struct XY *xy = xy_directions;
11041   int element_old = IntelliDrawBuffer[x][y];
11042   int nr = getBeltNrFromBeltElement(element_old);
11043   int direction_old = getOpenDirectionFromBelt(element_old);
11044   int direction_new = MV_NONE;
11045   int i;
11046
11047   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
11048   {
11049     int xx = x + xy[i].x;
11050     int yy = y + xy[i].y;
11051     int dir = MV_DIR_FROM_BIT(i);
11052     int dir_opposite = MV_DIR_OPPOSITE(dir);
11053
11054     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
11055         (direction_old & dir) &&
11056         (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11057       direction_new |= dir;
11058   }
11059
11060   return getBeltFromNrAndOpenDirection(nr, direction_new);
11061 }
11062
11063 static int getClosedPool(int x, int y)
11064 {
11065   struct XY *xy = xy_directions;
11066   int element_old = IntelliDrawBuffer[x][y];
11067   int direction_old = getOpenDirectionFromPool(element_old);
11068   int direction_new = MV_NONE;
11069   int i;
11070
11071   for (i = 0; i < NUM_DIRECTIONS; i++)
11072   {
11073     int xx = x + xy[i].x;
11074     int yy = y + xy[i].y;
11075     int dir = MV_DIR_FROM_BIT(i);
11076     int dir_opposite = MV_DIR_OPPOSITE(dir);
11077
11078     if (IN_LEV_FIELD(xx, yy) &&
11079         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
11080         (direction_old & dir) &&
11081         (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11082       direction_new |= dir;
11083   }
11084
11085   return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
11086 }
11087
11088 static int getClosedPillar(int x, int y)
11089 {
11090   struct XY *xy = xy_directions;
11091   int element_old = IntelliDrawBuffer[x][y];
11092   int direction_old = getOpenDirectionFromPillar(element_old);
11093   int direction_new = MV_NONE;
11094   int i;
11095
11096   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
11097   {
11098     int xx = x + xy[i].x;
11099     int yy = y + xy[i].y;
11100     int dir = MV_DIR_FROM_BIT(i);
11101     int dir_opposite = MV_DIR_OPPOSITE(dir);
11102
11103     if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
11104         (direction_old & dir) &&
11105         (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11106       direction_new |= dir;
11107   }
11108
11109   return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
11110 }
11111
11112 static int getClosedSteel2(int x, int y)
11113 {
11114   struct XY *xy = xy_directions;
11115   int element_old = IntelliDrawBuffer[x][y];
11116   int direction_old = getOpenDirectionFromSteel2(element_old);
11117   int direction_new = MV_NONE;
11118   int i;
11119
11120   for (i = 0; i < NUM_DIRECTIONS; i++)
11121   {
11122     int xx = x + xy[i].x;
11123     int yy = y + xy[i].y;
11124     int dir = MV_DIR_FROM_BIT(i);
11125     int dir_opposite = MV_DIR_OPPOSITE(dir);
11126
11127     if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
11128         (direction_old & dir) &&
11129         (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11130       direction_new |= dir;
11131   }
11132
11133   return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
11134 }
11135
11136 static int getClosedChip(int x, int y)
11137 {
11138   struct XY *xy = xy_directions;
11139   int element_old = IntelliDrawBuffer[x][y];
11140   int direction_old = getOpenDirectionFromChip(element_old);
11141   int direction_new = MV_NONE;
11142   int i;
11143
11144   for (i = 0; i < NUM_DIRECTIONS; i++)
11145   {
11146     int xx = x + xy[i].x;
11147     int yy = y + xy[i].y;
11148     int dir = MV_DIR_FROM_BIT(i);
11149     int dir_opposite = MV_DIR_OPPOSITE(dir);
11150
11151     if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
11152         (direction_old & dir) &&
11153         (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11154       direction_new |= dir;
11155   }
11156
11157   return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
11158 }
11159
11160 static void SetElementSimpleExt(int x, int y, int dx, int dy, int element,
11161                                 boolean change_level)
11162 {
11163   int sx = x - level_xpos;
11164   int sy = y - level_ypos;
11165   int old_element = Tile[x][y];
11166   int new_element = element;
11167   unsigned int new_bitmask = (getDrawModeHiRes() ? (dx + 1) << (dy * 2) : 0x0f);
11168   boolean draw_masked = FALSE;
11169
11170   if (IS_MM_WALL_EDITOR(element))
11171   {
11172     element = map_mm_wall_element_editor(element) | new_bitmask;
11173
11174     if (IS_MM_WALL(old_element))
11175       element |= MM_WALL_BITS(old_element);
11176
11177     if (!change_level)
11178       draw_masked = TRUE;
11179   }
11180   else if (IS_MM_WALL(old_element) && element == EL_EMPTY)
11181   {
11182     int element_changed = old_element & ~new_bitmask;
11183
11184     if (MM_WALL_BITS(element_changed) != 0)
11185       element = element_changed;
11186   }
11187
11188   IntelliDrawBuffer[x][y] = element;
11189
11190   if (change_level)
11191     Tile[x][y] = element;
11192
11193   if (IN_ED_FIELD(sx, sy))
11194   {
11195     if (IS_MM_WALL(old_element) && new_element == EL_EMPTY)
11196       DrawSizedWallParts_MM(sx, sy, EL_EMPTY, ed_tilesize, FALSE, new_bitmask);
11197     else if (draw_masked)
11198       DrawEditorElementThruMask(sx, sy, element);
11199     else
11200       DrawEditorElement(sx, sy, element);
11201   }
11202 }
11203
11204 static void SetElementSimple(int x, int y, int element, boolean change_level)
11205 {
11206   SetElementSimpleExt(x, y, 0, 0, element, change_level);
11207 }
11208
11209 static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
11210                                            int x2, int y2, int *element2,
11211                                            int (*close_function)(int, int),
11212                                            boolean change_level)
11213 {
11214   // set neighbour elements to newly determined connections
11215   SetElementSimple(x1, y1, *element1, change_level);
11216   SetElementSimple(x2, y2, *element2, change_level);
11217
11218   // remove all open connections of neighbour elements
11219   *element1 = close_function(x1, y1);
11220   *element2 = close_function(x2, y2);
11221
11222   // set neighbour elements to new, minimized connections
11223   SetElementSimple(x1, y1, *element1, change_level);
11224   SetElementSimple(x2, y2, *element2, change_level);
11225 }
11226
11227 static void SetElementIntelliDraw(int x, int y, int dx, int dy, int new_element,
11228                                   boolean change_level, int button)
11229 {
11230   struct XY *xy = xy_directions;
11231   static int last_x = -1;
11232   static int last_y = -1;
11233
11234   if (new_element == EL_UNDEFINED)
11235   {
11236     last_x = -1;
11237     last_y = -1;
11238
11239     return;
11240   }
11241
11242   int old_element = IntelliDrawBuffer[x][y];
11243
11244   if (IS_TUBE(new_element))
11245   {
11246     int last_element_new = EL_UNDEFINED;
11247     int direction = MV_NONE;
11248     int i;
11249
11250     // if old element is of same kind, keep all existing directions
11251     if (IS_TUBE(old_element))
11252       direction |= getOpenDirectionFromTube(old_element);
11253
11254     for (i = 0; i < NUM_DIRECTIONS; i++)
11255     {
11256       int xx = x + xy[i].x;
11257       int yy = y + xy[i].y;
11258
11259       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11260           IS_TUBE(IntelliDrawBuffer[last_x][last_y]))
11261       {
11262         int dir = MV_DIR_FROM_BIT(i);
11263         int dir_opposite = MV_DIR_OPPOSITE(dir);
11264         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11265         int last_direction_old = getOpenDirectionFromTube(last_element_old);
11266         int last_direction_new = last_direction_old | dir_opposite;
11267
11268         last_element_new = getTubeFromOpenDirection(last_direction_new);
11269
11270         direction |= dir;
11271       }
11272     }
11273
11274     new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
11275
11276     if (last_element_new != EL_UNDEFINED)
11277       MergeAndCloseNeighbourElements(x, y, &new_element,
11278                                      last_x, last_y, &last_element_new,
11279                                      getClosedTube, change_level);
11280   }
11281   else if (IS_BELT(new_element))
11282   {
11283     int belt_nr = getBeltNrFromBeltElement(new_element);
11284     int last_element_new = EL_UNDEFINED;
11285     int direction = MV_NONE;
11286     int i;
11287
11288     // if old element is of same kind, keep all existing directions
11289     if (IS_BELT(old_element))
11290       direction |= getOpenDirectionFromBelt(old_element);
11291
11292     for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
11293     {
11294       int xx = x + xy[i].x;
11295       int yy = y + xy[i].y;
11296
11297       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11298           IS_BELT(IntelliDrawBuffer[last_x][last_y]))
11299       {
11300         int dir = MV_DIR_FROM_BIT(i);
11301         int dir_opposite = MV_DIR_OPPOSITE(dir);
11302         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11303         int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
11304         int last_direction_old = getOpenDirectionFromBelt(last_element_old);
11305         int last_direction_new = last_direction_old | dir_opposite;
11306
11307         last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
11308                                                          last_direction_new);
11309         direction |= dir;
11310       }
11311     }
11312
11313     new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
11314                                                         new_element);
11315     if (last_element_new != EL_UNDEFINED)
11316       MergeAndCloseNeighbourElements(x, y, &new_element,
11317                                      last_x, last_y, &last_element_new,
11318                                      getClosedBelt, change_level);
11319   }
11320   else if (IS_ACID_POOL_OR_ACID(new_element))
11321   {
11322     int last_element_new = EL_UNDEFINED;
11323     int direction = MV_NONE;
11324     int i;
11325
11326     // if old element is of same kind, keep all existing directions
11327     if (IS_ACID_POOL_OR_ACID(old_element))
11328       direction |= getOpenDirectionFromPool(old_element);
11329
11330     for (i = 0; i < NUM_DIRECTIONS; i++)
11331     {
11332       int xx = x + xy[i].x;
11333       int yy = y + xy[i].y;
11334
11335       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11336           IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
11337       {
11338         int dir = MV_DIR_FROM_BIT(i);
11339         int dir_opposite = MV_DIR_OPPOSITE(dir);
11340         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11341         int last_direction_old = getOpenDirectionFromPool(last_element_old);
11342         int last_direction_new = last_direction_old | dir_opposite;
11343
11344         last_element_new = getPoolFromOpenDirection(last_direction_new);
11345
11346         direction |= dir;
11347       }
11348     }
11349
11350     // special corrections needed for intuitively correct acid pool drawing
11351     if (last_element_new == EL_EMPTY)
11352       last_element_new = new_element;
11353     else if (last_element_new != EL_UNDEFINED)
11354       new_element = last_element_new;
11355
11356     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
11357
11358     if (last_element_new != EL_UNDEFINED)
11359       MergeAndCloseNeighbourElements(x, y, &new_element,
11360                                      last_x, last_y, &last_element_new,
11361                                      getClosedPool, change_level);
11362   }
11363   else if (IS_EMC_PILLAR(new_element))
11364   {
11365     int last_element_new = EL_UNDEFINED;
11366     int direction = MV_NONE;
11367     int i;
11368
11369     // if old element is of same kind, keep all existing directions
11370     if (IS_EMC_PILLAR(old_element))
11371       direction |= getOpenDirectionFromPillar(old_element);
11372
11373     for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
11374     {
11375       int xx = x + xy[i].x;
11376       int yy = y + xy[i].y;
11377
11378       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11379           IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
11380       {
11381         int dir = MV_DIR_FROM_BIT(i);
11382         int dir_opposite = MV_DIR_OPPOSITE(dir);
11383         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11384         int last_direction_old = getOpenDirectionFromPillar(last_element_old);
11385         int last_direction_new = last_direction_old | dir_opposite;
11386
11387         last_element_new = getPillarFromOpenDirection(last_direction_new);
11388
11389         direction |= dir;
11390       }
11391     }
11392
11393     new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
11394
11395     if (last_element_new != EL_UNDEFINED)
11396       MergeAndCloseNeighbourElements(x, y, &new_element,
11397                                      last_x, last_y, &last_element_new,
11398                                      getClosedPillar, change_level);
11399   }
11400   else if (IS_DC_STEELWALL_2(new_element))
11401   {
11402     int last_element_new = EL_UNDEFINED;
11403     int direction = MV_NONE;
11404     int i;
11405
11406     // if old element is of same kind, keep all existing directions
11407     if (IS_DC_STEELWALL_2(old_element))
11408       direction |= getOpenDirectionFromSteel2(old_element);
11409
11410     for (i = 0; i < NUM_DIRECTIONS; i++)
11411     {
11412       int xx = x + xy[i].x;
11413       int yy = y + xy[i].y;
11414
11415       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11416           IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
11417       {
11418         int dir = MV_DIR_FROM_BIT(i);
11419         int dir_opposite = MV_DIR_OPPOSITE(dir);
11420         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11421         int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
11422         int last_direction_new = last_direction_old | dir_opposite;
11423
11424         last_element_new = getSteel2FromOpenDirection(last_direction_new);
11425
11426         direction |= dir;
11427       }
11428     }
11429
11430     new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
11431
11432     if (last_element_new != EL_UNDEFINED)
11433       MergeAndCloseNeighbourElements(x, y, &new_element,
11434                                      last_x, last_y, &last_element_new,
11435                                      getClosedSteel2, change_level);
11436   }
11437   else if (IS_SP_CHIP(new_element))
11438   {
11439     int last_element_new = EL_UNDEFINED;
11440     int direction = MV_NONE;
11441     int i;
11442
11443     // (do not keep existing directions, regardless of kind of old element)
11444
11445     for (i = 0; i < NUM_DIRECTIONS; i++)
11446     {
11447       int xx = x + xy[i].x;
11448       int yy = y + xy[i].y;
11449
11450       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11451           IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
11452       {
11453         int dir = MV_DIR_FROM_BIT(i);
11454         int dir_opposite = MV_DIR_OPPOSITE(dir);
11455         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11456         int last_direction_old = getOpenDirectionFromChip(last_element_old);
11457         int last_direction_new = last_direction_old | dir_opposite;
11458
11459         if (last_direction_old == MV_NONE)
11460         {
11461           last_element_new = getChipFromOpenDirection(last_direction_new);
11462           direction |= dir;
11463         }
11464         else if (last_direction_old & (dir | dir_opposite))
11465         {
11466           direction |= MV_DIR_OPPOSITE(last_direction_old);
11467         }
11468         else
11469         {
11470           direction |= MV_DIR_OPPOSITE(dir);
11471         }
11472       }
11473     }
11474
11475     new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
11476
11477     if (last_element_new != EL_UNDEFINED)
11478       MergeAndCloseNeighbourElements(x, y, &new_element,
11479                                      last_x, last_y, &last_element_new,
11480                                      getClosedChip, change_level);
11481   }
11482   else if (IS_SP_HARDWARE_BASE(new_element))
11483   {
11484     int nr = GetSimpleRandom(6);
11485
11486     new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
11487                    nr == 1 ? EL_SP_HARDWARE_BASE_2 :
11488                    nr == 2 ? EL_SP_HARDWARE_BASE_3 :
11489                    nr == 3 ? EL_SP_HARDWARE_BASE_4 :
11490                    nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
11491   }
11492   else if (new_element == EL_SP_HARDWARE_GREEN ||
11493            new_element == EL_SP_HARDWARE_BLUE ||
11494            new_element == EL_SP_HARDWARE_RED)
11495   {
11496     int nr = GetSimpleRandom(3);
11497
11498     new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
11499                    nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
11500   }
11501   else if (IS_GROUP_ELEMENT(new_element))
11502   {
11503     boolean connected_drawing = FALSE;
11504     int i;
11505
11506     for (i = 0; i < NUM_DIRECTIONS; i++)
11507     {
11508       int xx = x + xy[i].x;
11509       int yy = y + xy[i].y;
11510
11511       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11512           IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
11513         connected_drawing = TRUE;
11514     }
11515
11516     if (!connected_drawing)
11517       ResolveGroupElement(new_element);
11518
11519     new_element = GetElementFromGroupElement(new_element);
11520   }
11521   else if (IS_BELT_SWITCH(old_element))
11522   {
11523     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
11524     int belt_dir = getBeltDirFromBeltSwitchElement(old_element);
11525
11526     belt_dir = (belt_dir == MV_LEFT ? MV_NONE :
11527                 belt_dir == MV_NONE ? MV_RIGHT : MV_LEFT);
11528
11529     new_element = getBeltSwitchElementFromBeltNrAndBeltDir(belt_nr, belt_dir);
11530   }
11531   else
11532   {
11533     static int swappable_elements[][2] =
11534     {
11535       { EL_EXIT_CLOSED,                 EL_EXIT_OPEN                    },
11536       { EL_DYNAMITE,                    EL_DYNAMITE_ACTIVE              },
11537       { EL_EM_DYNAMITE,                 EL_EM_DYNAMITE_ACTIVE           },
11538       { EL_QUICKSAND_EMPTY,             EL_QUICKSAND_FULL               },
11539       { EL_EMERALD,                     EL_WALL_EMERALD                 },
11540       { EL_EMERALD_YELLOW,              EL_WALL_EMERALD_YELLOW          },
11541       { EL_EMERALD_RED,                 EL_WALL_EMERALD_RED             },
11542       { EL_EMERALD_PURPLE,              EL_WALL_EMERALD_PURPLE          },
11543       { EL_DIAMOND,                     EL_WALL_DIAMOND                 },
11544       { EL_BD_DIAMOND,                  EL_WALL_BD_DIAMOND              },
11545       { EL_GATE_1,                      EL_GATE_1_GRAY                  },
11546       { EL_GATE_2,                      EL_GATE_2_GRAY                  },
11547       { EL_GATE_3,                      EL_GATE_3_GRAY                  },
11548       { EL_GATE_4,                      EL_GATE_4_GRAY                  },
11549       { EL_EM_GATE_1,                   EL_EM_GATE_1_GRAY               },
11550       { EL_EM_GATE_2,                   EL_EM_GATE_2_GRAY               },
11551       { EL_EM_GATE_3,                   EL_EM_GATE_3_GRAY               },
11552       { EL_EM_GATE_4,                   EL_EM_GATE_4_GRAY               },
11553       { EL_EMC_GATE_5,                  EL_EMC_GATE_5_GRAY              },
11554       { EL_EMC_GATE_6,                  EL_EMC_GATE_6_GRAY              },
11555       { EL_EMC_GATE_7,                  EL_EMC_GATE_7_GRAY              },
11556       { EL_EMC_GATE_8,                  EL_EMC_GATE_8_GRAY              },
11557       { EL_DC_GATE_WHITE,               EL_DC_GATE_WHITE_GRAY           },
11558       { EL_TIME_ORB_EMPTY,              EL_TIME_ORB_FULL                },
11559       { EL_LAMP,                        EL_LAMP_ACTIVE                  },
11560       { EL_SOKOBAN_FIELD_EMPTY,         EL_SOKOBAN_FIELD_FULL           },
11561       { EL_SP_BASE,                     EL_SP_BUGGY_BASE                },
11562       { EL_PEARL,                       EL_WALL_PEARL                   },
11563       { EL_CRYSTAL,                     EL_WALL_CRYSTAL                 },
11564       { EL_TIMEGATE_CLOSED,             EL_TIMEGATE_OPEN                },
11565       { EL_SWITCHGATE_CLOSED,           EL_SWITCHGATE_OPEN              },
11566       { EL_SWITCHGATE_SWITCH_UP,        EL_SWITCHGATE_SWITCH_DOWN       },
11567       { EL_DC_SWITCHGATE_SWITCH_UP,     EL_DC_SWITCHGATE_SWITCH_DOWN    },
11568       { EL_LIGHT_SWITCH,                EL_LIGHT_SWITCH_ACTIVE          },
11569       { EL_LANDMINE,                    EL_DC_LANDMINE                  },
11570       { EL_SHIELD_NORMAL,               EL_SHIELD_DEADLY                },
11571       { EL_STEEL_EXIT_CLOSED,           EL_STEEL_EXIT_OPEN              },
11572       { EL_EM_EXIT_CLOSED,              EL_EM_EXIT_OPEN                 },
11573       { EL_EM_STEEL_EXIT_CLOSED,        EL_EM_STEEL_EXIT_OPEN           },
11574       { EL_QUICKSAND_FAST_EMPTY,        EL_QUICKSAND_FAST_FULL          },
11575       { EL_MM_EXIT_CLOSED,              EL_MM_EXIT_OPEN                 },
11576       { EL_MM_FUSE,                     EL_MM_FUSE_ACTIVE               },
11577       { EL_MM_LIGHTBULB,                EL_MM_LIGHTBULB_ACTIVE          },
11578       { EL_MM_FUEL_EMPTY,               EL_MM_FUEL_FULL                 },
11579
11580       { -1,                             -1                              },
11581     };
11582     static int rotatable_elements_4[][4] =
11583     {
11584       {
11585         EL_BUG_UP,
11586         EL_BUG_RIGHT,
11587         EL_BUG_DOWN,
11588         EL_BUG_LEFT
11589       },
11590       {
11591         EL_SPACESHIP_UP,
11592         EL_SPACESHIP_RIGHT,
11593         EL_SPACESHIP_DOWN,
11594         EL_SPACESHIP_LEFT
11595       },
11596       {
11597         EL_BD_BUTTERFLY_UP,
11598         EL_BD_BUTTERFLY_RIGHT,
11599         EL_BD_BUTTERFLY_DOWN,
11600         EL_BD_BUTTERFLY_LEFT
11601       },
11602       {
11603         EL_BD_FIREFLY_UP,
11604         EL_BD_FIREFLY_RIGHT,
11605         EL_BD_FIREFLY_DOWN,
11606         EL_BD_FIREFLY_LEFT
11607       },
11608       {
11609         EL_PACMAN_UP,
11610         EL_PACMAN_RIGHT,
11611         EL_PACMAN_DOWN,
11612         EL_PACMAN_LEFT
11613       },
11614       {
11615         EL_YAMYAM_UP,
11616         EL_YAMYAM_RIGHT,
11617         EL_YAMYAM_DOWN,
11618         EL_YAMYAM_LEFT
11619       },
11620       {
11621         EL_ARROW_UP,
11622         EL_ARROW_RIGHT,
11623         EL_ARROW_DOWN,
11624         EL_ARROW_LEFT
11625       },
11626       {
11627         EL_SP_PORT_UP,
11628         EL_SP_PORT_RIGHT,
11629         EL_SP_PORT_DOWN,
11630         EL_SP_PORT_LEFT
11631       },
11632       {
11633         EL_SP_GRAVITY_PORT_UP,
11634         EL_SP_GRAVITY_PORT_RIGHT,
11635         EL_SP_GRAVITY_PORT_DOWN,
11636         EL_SP_GRAVITY_PORT_LEFT
11637       },
11638       {
11639         EL_SP_GRAVITY_ON_PORT_UP,
11640         EL_SP_GRAVITY_ON_PORT_RIGHT,
11641         EL_SP_GRAVITY_ON_PORT_DOWN,
11642         EL_SP_GRAVITY_ON_PORT_LEFT
11643       },
11644       {
11645         EL_SP_GRAVITY_OFF_PORT_UP,
11646         EL_SP_GRAVITY_OFF_PORT_RIGHT,
11647         EL_SP_GRAVITY_OFF_PORT_DOWN,
11648         EL_SP_GRAVITY_OFF_PORT_LEFT
11649       },
11650       {
11651         EL_MOLE_UP,
11652         EL_MOLE_RIGHT,
11653         EL_MOLE_DOWN,
11654         EL_MOLE_LEFT
11655       },
11656       {
11657         EL_BALLOON_SWITCH_UP,
11658         EL_BALLOON_SWITCH_RIGHT,
11659         EL_BALLOON_SWITCH_DOWN,
11660         EL_BALLOON_SWITCH_LEFT
11661       },
11662       {
11663         EL_MM_MCDUFFIN_UP,
11664         EL_MM_MCDUFFIN_RIGHT,
11665         EL_MM_MCDUFFIN_DOWN,
11666         EL_MM_MCDUFFIN_LEFT
11667       },
11668       {
11669         EL_MM_MIRROR_FIXED_1,
11670         EL_MM_MIRROR_FIXED_4,
11671         EL_MM_MIRROR_FIXED_3,
11672         EL_MM_MIRROR_FIXED_2
11673       },
11674       {
11675         EL_MM_STEEL_GRID_FIXED_1,
11676         EL_MM_STEEL_GRID_FIXED_4,
11677         EL_MM_STEEL_GRID_FIXED_2,
11678         EL_MM_STEEL_GRID_FIXED_3
11679       },
11680       {
11681         EL_MM_WOODEN_GRID_FIXED_1,
11682         EL_MM_WOODEN_GRID_FIXED_4,
11683         EL_MM_WOODEN_GRID_FIXED_2,
11684         EL_MM_WOODEN_GRID_FIXED_3
11685       },
11686       {
11687         EL_MM_POLARIZER_CROSS_1,
11688         EL_MM_POLARIZER_CROSS_4,
11689         EL_MM_POLARIZER_CROSS_3,
11690         EL_MM_POLARIZER_CROSS_2
11691       },
11692       {
11693         EL_MM_PACMAN_UP,
11694         EL_MM_PACMAN_RIGHT,
11695         EL_MM_PACMAN_DOWN,
11696         EL_MM_PACMAN_LEFT
11697       },
11698       {
11699         EL_DF_LASER_UP,
11700         EL_DF_LASER_RIGHT,
11701         EL_DF_LASER_DOWN,
11702         EL_DF_LASER_LEFT
11703       },
11704       {
11705         EL_DF_RECEIVER_UP,
11706         EL_DF_RECEIVER_RIGHT,
11707         EL_DF_RECEIVER_DOWN,
11708         EL_DF_RECEIVER_LEFT
11709       },
11710       {
11711         EL_DF_SLOPE_1,
11712         EL_DF_SLOPE_4,
11713         EL_DF_SLOPE_3,
11714         EL_DF_SLOPE_2
11715       },
11716
11717       {
11718         -1,
11719       },
11720     };
11721     static int rotatable_elements_8[][8] =
11722     {
11723       {
11724         EL_DF_STEEL_GRID_FIXED_1,
11725         EL_DF_STEEL_GRID_FIXED_8,
11726         EL_DF_STEEL_GRID_FIXED_7,
11727         EL_DF_STEEL_GRID_FIXED_6,
11728         EL_DF_STEEL_GRID_FIXED_5,
11729         EL_DF_STEEL_GRID_FIXED_4,
11730         EL_DF_STEEL_GRID_FIXED_3,
11731         EL_DF_STEEL_GRID_FIXED_2
11732       },
11733       {
11734         EL_DF_WOODEN_GRID_FIXED_1,
11735         EL_DF_WOODEN_GRID_FIXED_8,
11736         EL_DF_WOODEN_GRID_FIXED_7,
11737         EL_DF_WOODEN_GRID_FIXED_6,
11738         EL_DF_WOODEN_GRID_FIXED_5,
11739         EL_DF_WOODEN_GRID_FIXED_4,
11740         EL_DF_WOODEN_GRID_FIXED_3,
11741         EL_DF_WOODEN_GRID_FIXED_2
11742       },
11743       {
11744         EL_DF_STEEL_GRID_ROTATING_1,
11745         EL_DF_STEEL_GRID_ROTATING_8,
11746         EL_DF_STEEL_GRID_ROTATING_7,
11747         EL_DF_STEEL_GRID_ROTATING_6,
11748         EL_DF_STEEL_GRID_ROTATING_5,
11749         EL_DF_STEEL_GRID_ROTATING_4,
11750         EL_DF_STEEL_GRID_ROTATING_3,
11751         EL_DF_STEEL_GRID_ROTATING_2
11752       },
11753       {
11754         EL_DF_WOODEN_GRID_ROTATING_1,
11755         EL_DF_WOODEN_GRID_ROTATING_8,
11756         EL_DF_WOODEN_GRID_ROTATING_7,
11757         EL_DF_WOODEN_GRID_ROTATING_6,
11758         EL_DF_WOODEN_GRID_ROTATING_5,
11759         EL_DF_WOODEN_GRID_ROTATING_4,
11760         EL_DF_WOODEN_GRID_ROTATING_3,
11761         EL_DF_WOODEN_GRID_ROTATING_2
11762       },
11763
11764       {
11765         -1,
11766       },
11767     };
11768     static int rotatable_elements_16[][16] =
11769     {
11770       {
11771         EL_MM_MIRROR_1,
11772         EL_MM_MIRROR_16,
11773         EL_MM_MIRROR_15,
11774         EL_MM_MIRROR_14,
11775         EL_MM_MIRROR_13,
11776         EL_MM_MIRROR_12,
11777         EL_MM_MIRROR_11,
11778         EL_MM_MIRROR_10,
11779         EL_MM_MIRROR_9,
11780         EL_MM_MIRROR_8,
11781         EL_MM_MIRROR_7,
11782         EL_MM_MIRROR_6,
11783         EL_MM_MIRROR_5,
11784         EL_MM_MIRROR_4,
11785         EL_MM_MIRROR_3,
11786         EL_MM_MIRROR_2
11787       },
11788       {
11789         EL_MM_TELEPORTER_5,
11790         EL_MM_TELEPORTER_4,
11791         EL_MM_TELEPORTER_3,
11792         EL_MM_TELEPORTER_2,
11793         EL_MM_TELEPORTER_1,
11794         EL_MM_TELEPORTER_16,
11795         EL_MM_TELEPORTER_15,
11796         EL_MM_TELEPORTER_14,
11797         EL_MM_TELEPORTER_13,
11798         EL_MM_TELEPORTER_12,
11799         EL_MM_TELEPORTER_11,
11800         EL_MM_TELEPORTER_10,
11801         EL_MM_TELEPORTER_9,
11802         EL_MM_TELEPORTER_8,
11803         EL_MM_TELEPORTER_7,
11804         EL_MM_TELEPORTER_6
11805       },
11806       {
11807         EL_MM_TELEPORTER_RED_5,
11808         EL_MM_TELEPORTER_RED_4,
11809         EL_MM_TELEPORTER_RED_3,
11810         EL_MM_TELEPORTER_RED_2,
11811         EL_MM_TELEPORTER_RED_1,
11812         EL_MM_TELEPORTER_RED_16,
11813         EL_MM_TELEPORTER_RED_15,
11814         EL_MM_TELEPORTER_RED_14,
11815         EL_MM_TELEPORTER_RED_13,
11816         EL_MM_TELEPORTER_RED_12,
11817         EL_MM_TELEPORTER_RED_11,
11818         EL_MM_TELEPORTER_RED_10,
11819         EL_MM_TELEPORTER_RED_9,
11820         EL_MM_TELEPORTER_RED_8,
11821         EL_MM_TELEPORTER_RED_7,
11822         EL_MM_TELEPORTER_RED_6
11823       },
11824       {
11825         EL_MM_TELEPORTER_YELLOW_5,
11826         EL_MM_TELEPORTER_YELLOW_4,
11827         EL_MM_TELEPORTER_YELLOW_3,
11828         EL_MM_TELEPORTER_YELLOW_2,
11829         EL_MM_TELEPORTER_YELLOW_1,
11830         EL_MM_TELEPORTER_YELLOW_16,
11831         EL_MM_TELEPORTER_YELLOW_15,
11832         EL_MM_TELEPORTER_YELLOW_14,
11833         EL_MM_TELEPORTER_YELLOW_13,
11834         EL_MM_TELEPORTER_YELLOW_12,
11835         EL_MM_TELEPORTER_YELLOW_11,
11836         EL_MM_TELEPORTER_YELLOW_10,
11837         EL_MM_TELEPORTER_YELLOW_9,
11838         EL_MM_TELEPORTER_YELLOW_8,
11839         EL_MM_TELEPORTER_YELLOW_7,
11840         EL_MM_TELEPORTER_YELLOW_6
11841       },
11842       {
11843         EL_MM_TELEPORTER_GREEN_5,
11844         EL_MM_TELEPORTER_GREEN_4,
11845         EL_MM_TELEPORTER_GREEN_3,
11846         EL_MM_TELEPORTER_GREEN_2,
11847         EL_MM_TELEPORTER_GREEN_1,
11848         EL_MM_TELEPORTER_GREEN_16,
11849         EL_MM_TELEPORTER_GREEN_15,
11850         EL_MM_TELEPORTER_GREEN_14,
11851         EL_MM_TELEPORTER_GREEN_13,
11852         EL_MM_TELEPORTER_GREEN_12,
11853         EL_MM_TELEPORTER_GREEN_11,
11854         EL_MM_TELEPORTER_GREEN_10,
11855         EL_MM_TELEPORTER_GREEN_9,
11856         EL_MM_TELEPORTER_GREEN_8,
11857         EL_MM_TELEPORTER_GREEN_7,
11858         EL_MM_TELEPORTER_GREEN_6
11859       },
11860       {
11861         EL_MM_TELEPORTER_BLUE_5,
11862         EL_MM_TELEPORTER_BLUE_4,
11863         EL_MM_TELEPORTER_BLUE_3,
11864         EL_MM_TELEPORTER_BLUE_2,
11865         EL_MM_TELEPORTER_BLUE_1,
11866         EL_MM_TELEPORTER_BLUE_16,
11867         EL_MM_TELEPORTER_BLUE_15,
11868         EL_MM_TELEPORTER_BLUE_14,
11869         EL_MM_TELEPORTER_BLUE_13,
11870         EL_MM_TELEPORTER_BLUE_12,
11871         EL_MM_TELEPORTER_BLUE_11,
11872         EL_MM_TELEPORTER_BLUE_10,
11873         EL_MM_TELEPORTER_BLUE_9,
11874         EL_MM_TELEPORTER_BLUE_8,
11875         EL_MM_TELEPORTER_BLUE_7,
11876         EL_MM_TELEPORTER_BLUE_6
11877       },
11878       {
11879         EL_MM_POLARIZER_1,
11880         EL_MM_POLARIZER_16,
11881         EL_MM_POLARIZER_15,
11882         EL_MM_POLARIZER_14,
11883         EL_MM_POLARIZER_13,
11884         EL_MM_POLARIZER_12,
11885         EL_MM_POLARIZER_11,
11886         EL_MM_POLARIZER_10,
11887         EL_MM_POLARIZER_9,
11888         EL_MM_POLARIZER_8,
11889         EL_MM_POLARIZER_7,
11890         EL_MM_POLARIZER_6,
11891         EL_MM_POLARIZER_5,
11892         EL_MM_POLARIZER_4,
11893         EL_MM_POLARIZER_3,
11894         EL_MM_POLARIZER_2
11895       },
11896       {
11897         EL_DF_MIRROR_1,
11898         EL_DF_MIRROR_16,
11899         EL_DF_MIRROR_15,
11900         EL_DF_MIRROR_14,
11901         EL_DF_MIRROR_13,
11902         EL_DF_MIRROR_12,
11903         EL_DF_MIRROR_11,
11904         EL_DF_MIRROR_10,
11905         EL_DF_MIRROR_9,
11906         EL_DF_MIRROR_8,
11907         EL_DF_MIRROR_7,
11908         EL_DF_MIRROR_6,
11909         EL_DF_MIRROR_5,
11910         EL_DF_MIRROR_4,
11911         EL_DF_MIRROR_3,
11912         EL_DF_MIRROR_2
11913       },
11914       {
11915         EL_DF_MIRROR_ROTATING_1,
11916         EL_DF_MIRROR_ROTATING_16,
11917         EL_DF_MIRROR_ROTATING_15,
11918         EL_DF_MIRROR_ROTATING_14,
11919         EL_DF_MIRROR_ROTATING_13,
11920         EL_DF_MIRROR_ROTATING_12,
11921         EL_DF_MIRROR_ROTATING_11,
11922         EL_DF_MIRROR_ROTATING_10,
11923         EL_DF_MIRROR_ROTATING_9,
11924         EL_DF_MIRROR_ROTATING_8,
11925         EL_DF_MIRROR_ROTATING_7,
11926         EL_DF_MIRROR_ROTATING_6,
11927         EL_DF_MIRROR_ROTATING_5,
11928         EL_DF_MIRROR_ROTATING_4,
11929         EL_DF_MIRROR_ROTATING_3,
11930         EL_DF_MIRROR_ROTATING_2
11931       },
11932       {
11933         EL_DF_MIRROR_FIXED_1,
11934         EL_DF_MIRROR_FIXED_16,
11935         EL_DF_MIRROR_FIXED_15,
11936         EL_DF_MIRROR_FIXED_14,
11937         EL_DF_MIRROR_FIXED_13,
11938         EL_DF_MIRROR_FIXED_12,
11939         EL_DF_MIRROR_FIXED_11,
11940         EL_DF_MIRROR_FIXED_10,
11941         EL_DF_MIRROR_FIXED_9,
11942         EL_DF_MIRROR_FIXED_8,
11943         EL_DF_MIRROR_FIXED_7,
11944         EL_DF_MIRROR_FIXED_6,
11945         EL_DF_MIRROR_FIXED_5,
11946         EL_DF_MIRROR_FIXED_4,
11947         EL_DF_MIRROR_FIXED_3,
11948         EL_DF_MIRROR_FIXED_2
11949       },
11950
11951       {
11952         -1,
11953       },
11954     };
11955     int i, j;
11956
11957     for (i = 0; swappable_elements[i][0] != -1; i++)
11958     {
11959       int element1 = swappable_elements[i][0];
11960       int element2 = swappable_elements[i][1];
11961
11962       if (old_element == element1 || old_element == element2)
11963         new_element = (old_element == element1 ? element2 : element1);
11964     }
11965
11966     for (i = 0; rotatable_elements_4[i][0] != -1; i++)
11967     {
11968       for (j = 0; j < 4; j++)
11969       {
11970         int element = rotatable_elements_4[i][j];
11971
11972         if (old_element == element)
11973           new_element = (button == 1 ? rotatable_elements_4[i][(j + 3) % 4] :
11974                          button == 2 ? rotatable_elements_4[i][0]           :
11975                          button == 3 ? rotatable_elements_4[i][(j + 1) % 4] :
11976                          old_element);
11977       }
11978     }
11979
11980     for (i = 0; rotatable_elements_8[i][0] != -1; i++)
11981     {
11982       for (j = 0; j < 8; j++)
11983       {
11984         int element = rotatable_elements_8[i][j];
11985
11986         if (old_element == element)
11987           new_element = (button == 1 ? rotatable_elements_8[i][(j + 7) % 8] :
11988                          button == 2 ? rotatable_elements_8[i][0]           :
11989                          button == 3 ? rotatable_elements_8[i][(j + 1) % 8] :
11990                          old_element);
11991       }
11992     }
11993
11994     for (i = 0; rotatable_elements_16[i][0] != -1; i++)
11995     {
11996       for (j = 0; j < 16; j++)
11997       {
11998         int element = rotatable_elements_16[i][j];
11999
12000         if (old_element == element)
12001           new_element = (button == 1 ? rotatable_elements_16[i][(j + 15) % 16] :
12002                          button == 2 ? rotatable_elements_16[i][0]             :
12003                          button == 3 ? rotatable_elements_16[i][(j + 1)  % 16] :
12004                          old_element);
12005       }
12006     }
12007
12008     if (old_element != new_element)
12009     {
12010       int max_infotext_len = getMaxInfoTextLength();
12011       char infotext[MAX_OUTPUT_LINESIZE + 1];
12012
12013       strncpy(infotext, getElementInfoText(new_element), max_infotext_len);
12014       infotext[max_infotext_len] = '\0';
12015
12016       ClearEditorGadgetInfoText();
12017
12018       DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT,
12019                 infotext);
12020     }
12021   }
12022
12023   if (IS_MM_WALL_EDITOR(new_element))
12024     SetElementSimpleExt(x, y, dx, dy, new_element, change_level);
12025   else
12026     SetElementSimple(x, y, new_element, change_level);
12027
12028   last_x = x;
12029   last_y = y;
12030 }
12031
12032 static void ResetIntelliDraw(void)
12033 {
12034   int x, y;
12035
12036   for (x = 0; x < lev_fieldx; x++)
12037     for (y = 0; y < lev_fieldy; y++)
12038       IntelliDrawBuffer[x][y] = Tile[x][y];
12039
12040   SetElementIntelliDraw(-1, -1, -1, -1, EL_UNDEFINED, FALSE, -1);
12041 }
12042
12043 static boolean draw_mode_hires = FALSE;
12044
12045 static boolean isHiresTileElement(int element)
12046 {
12047   return (IS_MM_WALL(element)        || element == EL_EMPTY);
12048 }
12049
12050 static boolean isHiresDrawElement(int element)
12051 {
12052   return (IS_MM_WALL_EDITOR(element) || element == EL_EMPTY);
12053 }
12054
12055 static int numHiresTiles(int element)
12056 {
12057   if (IS_MM_WALL(element))
12058     return get_number_of_bits(MM_WALL_BITS(element));
12059
12060   return 1;
12061 }
12062
12063 static void SetDrawModeHiRes(int element)
12064 {
12065   draw_mode_hires =
12066     (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
12067      isHiresDrawElement(element));
12068 }
12069
12070 static boolean getDrawModeHiRes(void)
12071 {
12072   return draw_mode_hires;
12073 }
12074
12075 static int getLoResScreenPos(int pos)
12076 {
12077   return (getDrawModeHiRes() ? pos / 2 : pos);
12078 }
12079
12080 static int getLoResScreenMod(int pos)
12081 {
12082   return (getDrawModeHiRes() ? pos % 2 : 0);
12083 }
12084
12085 static void SetElementExt(int x, int y, int dx, int dy, int element,
12086                           boolean change_level, int button)
12087 {
12088   if (element < 0)
12089     SetElementSimple(x, y, Tile[x][y], change_level);
12090   else if (GetKeyModState() & KMOD_Shift)
12091     SetElementIntelliDraw(x, y, dx, dy, element, change_level, button);
12092   else
12093     SetElementSimpleExt(x, y, dx, dy, element, change_level);
12094 }
12095
12096 static void SetElement(int x, int y, int element)
12097 {
12098   SetElementExt(x, y, 0, 0, element, TRUE, -1);
12099 }
12100
12101 static void SetElementButton(int x, int y, int dx, int dy, int element,
12102                              int button)
12103 {
12104   SetElementExt(x, y, dx, dy, element, TRUE, button);
12105 }
12106
12107 static void SetElementHiRes(int sx2, int sy2, int element, boolean change_level)
12108 {
12109   int lx = getLoResScreenPos(sx2) + level_xpos;
12110   int ly = getLoResScreenPos(sy2) + level_ypos;
12111   int dx = getLoResScreenMod(sx2);
12112   int dy = getLoResScreenMod(sy2);
12113
12114   SetElementExt(lx, ly, dx, dy, element, change_level, -1);
12115 }
12116
12117 static void SetLevelElementHiRes(int lx2, int ly2, int element)
12118 {
12119   int lx = lx2 / 2;
12120   int ly = ly2 / 2;
12121   int dx = lx2 % 2;
12122   int dy = ly2 % 2;
12123
12124   SetElementExt(lx, ly, dx, dy, element, TRUE, -1);
12125 }
12126
12127 static int getLevelElementHiRes(int lx2, int ly2)
12128 {
12129   int lx = lx2 / 2;
12130   int ly = ly2 / 2;
12131   int dx = lx2 % 2;
12132   int dy = ly2 % 2;
12133   int element = Tile[lx][ly];
12134   unsigned int bitmask = (dx + 1) << (dy * 2);
12135
12136   if (IS_MM_WALL(element))
12137   {
12138     if (element & bitmask)
12139       return map_mm_wall_element(element);
12140     else
12141       return EL_EMPTY;
12142   }
12143
12144   return element;
12145 }
12146
12147 static void DrawLineElement(int x, int y, int element, boolean change_level)
12148 {
12149   SetElementHiRes(x, y, element, change_level);
12150 }
12151
12152 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
12153                      int element, boolean change_level)
12154 {
12155   int xsize = ABS(to_x - from_x);
12156   int ysize = ABS(to_y - from_y);
12157   int dx = (to_x < from_x ? -1 : +1);
12158   int dy = (to_y < from_y ? -1 : +1);
12159   int i;
12160
12161   if (from_y == to_y)                   // horizontal line
12162   {
12163     for (i = 0; i <= xsize; i++)
12164       DrawLineElement(from_x + i * dx, from_y, element, change_level);
12165   }
12166   else if (from_x == to_x)              // vertical line
12167   {
12168     for (i = 0; i <= ysize; i++)
12169       DrawLineElement(from_x, from_y + i * dy, element, change_level);
12170   }
12171   else                                  // diagonal line
12172   {
12173     if (ysize < xsize)                  // a < 1
12174     {
12175       float a = (float)ysize / (float)xsize;
12176
12177       for (i = 0; i <= xsize; i++)
12178       {
12179         int x = dx * i;
12180         int y = dy * (int)(a * i + 0.5);
12181
12182         DrawLineElement(from_x + x, from_y + y, element, change_level);
12183       }
12184     }
12185     else                                // a >= 1
12186     {
12187       float a = (float)xsize / (float)ysize;
12188
12189       for (i = 0; i <= ysize; i++)
12190       {
12191         int x = dx * (int)(a * i + 0.5);
12192         int y = dy * i;
12193
12194         DrawLineElement(from_x + x, from_y + y, element, change_level);
12195       }
12196     }
12197   }
12198 }
12199
12200 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
12201                     int element, boolean change_level)
12202 {
12203   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
12204   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
12205   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
12206   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
12207 }
12208
12209 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
12210                           int element, boolean change_level)
12211 {
12212   int y;
12213
12214   if (from_y > to_y)
12215     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
12216
12217   for (y = from_y; y <= to_y; y++)
12218     DrawLine(from_x, y, to_x, y, element, change_level);
12219 }
12220
12221 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
12222                        int element, boolean change_level)
12223 {
12224   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
12225   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
12226   int len_x = ABS(to_x - from_x);
12227   int len_y = ABS(to_y - from_y);
12228   int radius, x, y;
12229
12230   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
12231
12232   // not optimal (some points get drawn twice) but simple,
12233   // and fast enough for the few points we are drawing
12234
12235   for (x = 0; x <= radius; x++)
12236   {
12237     int sx, sy, sx2, sy2, lx, ly;
12238
12239     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
12240
12241     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
12242     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
12243     sx = getLoResScreenPos(sx2);
12244     sy = getLoResScreenPos(sy2);
12245     lx = sx + level_xpos;
12246     ly = sy + level_ypos;
12247
12248     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
12249       DrawLineElement(sx2, sy2, element, change_level);
12250   }
12251
12252   for (y = 0; y <= radius; y++)
12253   {
12254     int sx, sy, sx2, sy2, lx, ly;
12255
12256     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
12257
12258     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
12259     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
12260     sx = getLoResScreenPos(sx2);
12261     sy = getLoResScreenPos(sy2);
12262     lx = sx + level_xpos;
12263     ly = sy + level_ypos;
12264
12265     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
12266       DrawLineElement(sx2, sy2, element, change_level);
12267   }
12268 }
12269
12270 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
12271                     int element, boolean change_level)
12272 {
12273   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
12274   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
12275
12276   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
12277 }
12278
12279 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
12280
12281 #if DRAW_CIRCLES_BUTTON_AVAILABLE
12282 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
12283                        int element, boolean change_level)
12284 {
12285   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
12286   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
12287   int mirror_to_x2 = from_x - (to_x2 - from_x);
12288   int mirror_to_y2 = from_y - (to_y2 - from_y);
12289
12290   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
12291   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
12292   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
12293   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element, change_level);
12294 }
12295 #endif
12296
12297 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
12298 {
12299   int from_sx, from_sy;
12300   int to_sx, to_sy;
12301
12302   if (from_x > to_x)
12303     swap_numbers(&from_x, &to_x);
12304
12305   if (from_y > to_y)
12306     swap_numbers(&from_y, &to_y);
12307
12308   from_sx = SX + from_x * ed_tilesize;
12309   from_sy = SY + from_y * ed_tilesize;
12310   to_sx = SX + (to_x + 1) * ed_tilesize - 1;
12311   to_sy = SY + (to_y + 1) * ed_tilesize - 1;
12312
12313   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
12314   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
12315   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
12316   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
12317
12318   if (from_x == to_x && from_y == to_y)
12319     MarkTileDirty(from_x/2, from_y/2);
12320   else
12321     redraw_mask |= REDRAW_FIELD;
12322 }
12323
12324 static void DrawAreaBox(int from_x, int from_y, int to_x, int to_y,
12325                         int element, boolean change_level)
12326 {
12327   DrawBox(from_x, from_y, to_x, to_y, element, change_level);
12328 }
12329
12330 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
12331                        int element, boolean change_level)
12332 {
12333   if (element == -1 || change_level)
12334     DrawAreaBox(from_x, from_y, to_x, to_y, -1, FALSE);
12335   else
12336     DrawAreaBorder(from_x, from_y, to_x, to_y);
12337 }
12338
12339 // values for CopyBrushExt()
12340 #define CB_AREA_TO_BRUSH                0
12341 #define CB_BRUSH_TO_CURSOR              1
12342 #define CB_BRUSH_TO_LEVEL               2
12343 #define CB_DELETE_OLD_CURSOR            3
12344 #define CB_DUMP_BRUSH                   4
12345 #define CB_DUMP_BRUSH_SMALL             5
12346 #define CB_CLIPBOARD_TO_BRUSH           6
12347 #define CB_BRUSH_TO_CLIPBOARD           7
12348 #define CB_BRUSH_TO_CLIPBOARD_SMALL     8
12349 #define CB_UPDATE_BRUSH_POSITION        9
12350 #define CB_FLIP_BRUSH_X                 10
12351 #define CB_FLIP_BRUSH_Y                 11
12352 #define CB_FLIP_BRUSH_XY                12
12353
12354 #define MAX_CB_PART_SIZE        10
12355 #define MAX_CB_LINE_SIZE        (MAX_LEV_FIELDX + 1)    // text plus newline
12356 #define MAX_CB_NUM_LINES        (MAX_LEV_FIELDY)
12357 #define MAX_CB_TEXT_SIZE        (MAX_CB_LINE_SIZE *     \
12358                                  MAX_CB_NUM_LINES *     \
12359                                  MAX_CB_PART_SIZE)
12360
12361 static int getFlippedTileExt(int map[], int element)
12362 {
12363   int i;
12364
12365   for (i = 0; map[i] != -1; i++)
12366     if (map[i] == element)
12367       return map[i ^ 1];        // get flipped element by flipping LSB of index
12368
12369   return element;
12370 }
12371
12372 static int getFlippedTileX(int element)
12373 {
12374   int map[] =
12375   {
12376     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_RIGHT,
12377     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_RIGHT,
12378     EL_BUG_LEFT,                        EL_BUG_RIGHT,
12379     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_RIGHT,
12380     EL_PACMAN_LEFT,                     EL_PACMAN_RIGHT,
12381     EL_ARROW_LEFT,                      EL_ARROW_RIGHT,
12382     EL_MOLE_LEFT,                       EL_MOLE_RIGHT,
12383     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_RIGHT,
12384     EL_YAMYAM_LEFT,                     EL_YAMYAM_RIGHT,
12385     EL_SP_PORT_LEFT,                    EL_SP_PORT_RIGHT,
12386     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_RIGHT,
12387     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_RIGHT,
12388     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_RIGHT,
12389     EL_CONVEYOR_BELT_1_LEFT,            EL_CONVEYOR_BELT_1_RIGHT,
12390     EL_CONVEYOR_BELT_2_LEFT,            EL_CONVEYOR_BELT_2_RIGHT,
12391     EL_CONVEYOR_BELT_3_LEFT,            EL_CONVEYOR_BELT_3_RIGHT,
12392     EL_CONVEYOR_BELT_4_LEFT,            EL_CONVEYOR_BELT_4_RIGHT,
12393     EL_SPRING_LEFT,                     EL_SPRING_RIGHT,
12394     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_RIGHT,
12395     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_VERTICAL_RIGHT,
12396     EL_TUBE_LEFT_UP,                    EL_TUBE_RIGHT_UP,
12397     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_DOWN,
12398     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_RIGHT,
12399     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_TOPRIGHT,
12400     EL_DC_STEELWALL_1_BOTTOMLEFT,       EL_DC_STEELWALL_1_BOTTOMRIGHT,
12401     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_TOPRIGHT_2,
12402     EL_DC_STEELWALL_1_BOTTOMLEFT_2,     EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
12403     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_RIGHT,
12404     EL_ACID_POOL_TOPLEFT,               EL_ACID_POOL_TOPRIGHT,
12405     EL_ACID_POOL_BOTTOMLEFT,            EL_ACID_POOL_BOTTOMRIGHT,
12406
12407     -1
12408   };
12409
12410   return getFlippedTileExt(map, element);
12411 }
12412
12413 static int getFlippedTileY(int element)
12414 {
12415   int map[] =
12416   {
12417     EL_BD_BUTTERFLY_UP,                 EL_BD_BUTTERFLY_DOWN,
12418     EL_BD_FIREFLY_UP,                   EL_BD_FIREFLY_DOWN,
12419     EL_BUG_UP,                          EL_BUG_DOWN,
12420     EL_SPACESHIP_UP,                    EL_SPACESHIP_DOWN,
12421     EL_PACMAN_UP,                       EL_PACMAN_DOWN,
12422     EL_ARROW_UP,                        EL_ARROW_DOWN,
12423     EL_MOLE_UP,                         EL_MOLE_DOWN,
12424     EL_BALLOON_SWITCH_UP,               EL_BALLOON_SWITCH_DOWN,
12425     EL_YAMYAM_UP,                       EL_YAMYAM_DOWN,
12426     EL_SP_PORT_UP,                      EL_SP_PORT_DOWN,
12427     EL_SP_GRAVITY_PORT_UP,              EL_SP_GRAVITY_PORT_DOWN,
12428     EL_SP_GRAVITY_ON_PORT_UP,           EL_SP_GRAVITY_ON_PORT_DOWN,
12429     EL_SP_GRAVITY_OFF_PORT_UP,          EL_SP_GRAVITY_OFF_PORT_DOWN,
12430     EL_SP_CHIP_TOP,                     EL_SP_CHIP_BOTTOM,
12431     EL_TUBE_HORIZONTAL_UP,              EL_TUBE_HORIZONTAL_DOWN,
12432     EL_TUBE_LEFT_UP,                    EL_TUBE_LEFT_DOWN,
12433     EL_TUBE_RIGHT_UP,                   EL_TUBE_RIGHT_DOWN,
12434     EL_DC_STEELWALL_1_TOP,              EL_DC_STEELWALL_1_BOTTOM,
12435     EL_DC_STEELWALL_1_TOPLEFT,          EL_DC_STEELWALL_1_BOTTOMLEFT,
12436     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMRIGHT,
12437     EL_DC_STEELWALL_1_TOPLEFT_2,        EL_DC_STEELWALL_1_BOTTOMLEFT_2,
12438     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
12439     EL_DC_STEELWALL_2_TOP,              EL_DC_STEELWALL_2_BOTTOM,
12440     EL_EMC_WALL_1,                      EL_EMC_WALL_3,
12441
12442     -1
12443   };
12444
12445   return getFlippedTileExt(map, element);
12446 }
12447
12448 static int getFlippedTileXY(int element)
12449 {
12450   int map[] =
12451   {
12452     EL_BD_BUTTERFLY_LEFT,               EL_BD_BUTTERFLY_UP,
12453     EL_BD_BUTTERFLY_RIGHT,              EL_BD_BUTTERFLY_DOWN,
12454     EL_BD_FIREFLY_LEFT,                 EL_BD_FIREFLY_UP,
12455     EL_BD_FIREFLY_RIGHT,                EL_BD_FIREFLY_DOWN,
12456     EL_BUG_LEFT,                        EL_BUG_UP,
12457     EL_BUG_RIGHT,                       EL_BUG_DOWN,
12458     EL_SPACESHIP_LEFT,                  EL_SPACESHIP_UP,
12459     EL_SPACESHIP_RIGHT,                 EL_SPACESHIP_DOWN,
12460     EL_PACMAN_LEFT,                     EL_PACMAN_UP,
12461     EL_PACMAN_RIGHT,                    EL_PACMAN_DOWN,
12462     EL_ARROW_LEFT,                      EL_ARROW_UP,
12463     EL_ARROW_RIGHT,                     EL_ARROW_DOWN,
12464     EL_MOLE_LEFT,                       EL_MOLE_UP,
12465     EL_MOLE_RIGHT,                      EL_MOLE_DOWN,
12466     EL_BALLOON_SWITCH_LEFT,             EL_BALLOON_SWITCH_UP,
12467     EL_BALLOON_SWITCH_RIGHT,            EL_BALLOON_SWITCH_DOWN,
12468     EL_YAMYAM_LEFT,                     EL_YAMYAM_UP,
12469     EL_YAMYAM_RIGHT,                    EL_YAMYAM_DOWN,
12470     EL_SP_PORT_LEFT,                    EL_SP_PORT_UP,
12471     EL_SP_PORT_RIGHT,                   EL_SP_PORT_DOWN,
12472     EL_SP_GRAVITY_PORT_LEFT,            EL_SP_GRAVITY_PORT_UP,
12473     EL_SP_GRAVITY_PORT_RIGHT,           EL_SP_GRAVITY_PORT_DOWN,
12474     EL_SP_GRAVITY_ON_PORT_LEFT,         EL_SP_GRAVITY_ON_PORT_UP,
12475     EL_SP_GRAVITY_ON_PORT_RIGHT,        EL_SP_GRAVITY_ON_PORT_DOWN,
12476     EL_SP_GRAVITY_OFF_PORT_LEFT,        EL_SP_GRAVITY_OFF_PORT_UP,
12477     EL_SP_GRAVITY_OFF_PORT_RIGHT,       EL_SP_GRAVITY_OFF_PORT_DOWN,
12478     EL_SP_CHIP_LEFT,                    EL_SP_CHIP_TOP,
12479     EL_SP_CHIP_RIGHT,                   EL_SP_CHIP_BOTTOM,
12480     EL_TUBE_VERTICAL,                   EL_TUBE_HORIZONTAL,
12481     EL_TUBE_VERTICAL_LEFT,              EL_TUBE_HORIZONTAL_UP,
12482     EL_TUBE_VERTICAL_RIGHT,             EL_TUBE_HORIZONTAL_DOWN,
12483     EL_TUBE_LEFT_DOWN,                  EL_TUBE_RIGHT_UP,
12484     EL_DC_STEELWALL_1_LEFT,             EL_DC_STEELWALL_1_TOP,
12485     EL_DC_STEELWALL_1_RIGHT,            EL_DC_STEELWALL_1_BOTTOM,
12486     EL_DC_STEELWALL_1_HORIZONTAL,       EL_DC_STEELWALL_1_VERTICAL,
12487     EL_DC_STEELWALL_1_TOPRIGHT,         EL_DC_STEELWALL_1_BOTTOMLEFT,
12488     EL_DC_STEELWALL_1_TOPRIGHT_2,       EL_DC_STEELWALL_1_BOTTOMLEFT_2,
12489     EL_DC_STEELWALL_2_LEFT,             EL_DC_STEELWALL_2_TOP,
12490     EL_DC_STEELWALL_2_RIGHT,            EL_DC_STEELWALL_2_BOTTOM,
12491     EL_DC_STEELWALL_2_HORIZONTAL,       EL_DC_STEELWALL_2_VERTICAL,
12492     EL_EXPANDABLE_WALL_HORIZONTAL,      EL_EXPANDABLE_WALL_VERTICAL,
12493     EL_EXPANDABLE_STEELWALL_HORIZONTAL, EL_EXPANDABLE_STEELWALL_VERTICAL,
12494
12495     -1
12496   };
12497
12498   return getFlippedTileExt(map, element);
12499 }
12500
12501 static int getFlippedTile(int element, int mode)
12502 {
12503   if (IS_MM_ELEMENT(element))
12504   {
12505     // get MM game element
12506     element = map_element_RND_to_MM(element);
12507
12508     // get flipped game element
12509     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX_MM(element) :
12510                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY_MM(element) :
12511                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY_MM(element) :
12512                element);
12513
12514     // get RND game element again
12515     element = map_element_MM_to_RND(element);
12516   }
12517   else
12518   {
12519     // get flipped game element
12520     element = (mode == CB_FLIP_BRUSH_X  ? getFlippedTileX(element) :
12521                mode == CB_FLIP_BRUSH_Y  ? getFlippedTileY(element) :
12522                mode == CB_FLIP_BRUSH_XY ? getFlippedTileXY(element) :
12523                element);
12524   }
12525
12526   return element;
12527 }
12528
12529 static void SwapFlippedTiles(short *tile1, short *tile2, int mode)
12530 {
12531   // flip tiles
12532   short tile1_flipped = getFlippedTile(*tile1, mode);
12533   short tile2_flipped = getFlippedTile(*tile2, mode);
12534
12535   // swap tiles
12536   *tile1 = tile2_flipped;
12537   *tile2 = tile1_flipped;
12538 }
12539
12540 static void DrawBrushElement(int sx, int sy, int element, boolean change_level)
12541 {
12542   DrawLineElement(sx, sy, element, change_level);
12543 }
12544
12545 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
12546                          int button, int mode)
12547 {
12548   static short brush_buffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
12549   static int brush_width, brush_height;
12550   static int last_cursor_x = -1, last_cursor_y = -1;
12551   static boolean delete_old_brush = FALSE;
12552   int new_element = BUTTON_ELEMENT(button);
12553   int x, y;
12554
12555   if (mode == CB_DUMP_BRUSH ||
12556       mode == CB_DUMP_BRUSH_SMALL ||
12557       mode == CB_BRUSH_TO_CLIPBOARD ||
12558       mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
12559   {
12560     if (edit_mode != ED_MODE_DRAWING)
12561       return;
12562
12563     char part[MAX_CB_PART_SIZE + 1] = "";
12564     char text[MAX_CB_TEXT_SIZE + 1] = "";
12565     int width  = (draw_with_brush ? brush_width  : lev_fieldx);
12566     int height = (draw_with_brush ? brush_height : lev_fieldy);
12567     char *format = "%s%03d";
12568
12569     for (y = 0; y < height; y++)
12570       for (x = 0; x < width; x++)
12571         if ((draw_with_brush ? brush_buffer[x][y] : Tile[x][y]) > 999)
12572           format = "%s%04d";
12573
12574     for (y = 0; y < height; y++)
12575     {
12576       for (x = 0; x < width; x++)
12577       {
12578         int element = (draw_with_brush ? brush_buffer[x][y] : Tile[x][y]);
12579         char *prefix = (mode == CB_DUMP_BRUSH ||
12580                         mode == CB_BRUSH_TO_CLIPBOARD ? "`" : "¸");
12581
12582         if (element >= NUM_FILE_ELEMENTS)
12583           element = EL_UNKNOWN;
12584
12585         // copy brush to level sketch text buffer for the R'n'D forum:
12586         // - large tiles: `xxx or `xxxx (0x60 ASCII)
12587         // - small tiles: ¸xxx or ¸xxxx (0xb8 ISO-8859-1, 0xc2b8 UTF-8)
12588         snprintf(part, MAX_CB_PART_SIZE + 1, format, prefix, element);
12589         strcat(text, part);
12590       }
12591
12592       strcat(text, "\n");
12593     }
12594
12595     if (mode == CB_BRUSH_TO_CLIPBOARD ||
12596         mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
12597       SDL_SetClipboardText(text);
12598     else
12599       Print("%s", text);        // print brush data to console and log file
12600
12601     return;
12602   }
12603
12604   if (mode == CB_CLIPBOARD_TO_BRUSH)
12605   {
12606     if (edit_mode != ED_MODE_DRAWING)
12607       return;
12608
12609     if (!SDL_HasClipboardText())
12610     {
12611       Request("Clipboard is empty!", REQ_CONFIRM);
12612
12613       return;
12614     }
12615
12616     boolean copy_to_brush = (draw_with_brush ||
12617                              drawing_function == GADGET_ID_GRAB_BRUSH);
12618
12619     // this will delete the old brush, if already drawing with a brush
12620     if (copy_to_brush)
12621       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], MB_LEFTBUTTON);
12622
12623     // initialization is required for "odd" (incomplete) clipboard content
12624     for (x = 0; x < MAX_LEV_FIELDX; x++)
12625       for (y = 0; y < MAX_LEV_FIELDY; y++)
12626         brush_buffer[x][y] = EL_EMPTY;
12627
12628     brush_width  = 0;
12629     brush_height = 0;
12630     x = 0;
12631     y = 0;
12632
12633     char *clipboard_text = SDL_GetClipboardText();
12634     char *ptr = clipboard_text;
12635     boolean allow_new_row = FALSE;
12636     boolean stop = FALSE;
12637
12638     while (*ptr && !stop)
12639     {
12640       boolean prefix_found = FALSE;
12641       boolean start_new_row = FALSE;
12642
12643       // level sketch element number prefixes (may be multi-byte characters)
12644       char *prefix_list[] = { "`", "¸" };
12645       int i;
12646
12647       for (i = 0; i < ARRAY_SIZE(prefix_list); i++)
12648       {
12649         char *prefix = prefix_list[i];
12650
12651         // check if string is large enough for prefix
12652         if (strlen(ptr) < strlen(prefix))
12653         {
12654           stop = TRUE;
12655
12656           break;
12657         }
12658
12659         // check if string starts with prefix
12660         if (strPrefix(ptr, prefix))
12661         {
12662           ptr += strlen(prefix);
12663
12664           prefix_found = TRUE;
12665
12666           break;
12667         }
12668       }
12669
12670       // check if prefix found and followed by (at least) three digits
12671       if (prefix_found &&
12672           strlen(ptr) >= 3 &&
12673           ptr[0] >= '0' && ptr[0] <= '9' &&
12674           ptr[1] >= '0' && ptr[1] <= '9' &&
12675           ptr[2] >= '0' && ptr[2] <= '9')
12676       {
12677         int element = ((ptr[0] - '0') * 100 +
12678                        (ptr[1] - '0') * 10 +
12679                        (ptr[2] - '0'));
12680
12681         ptr += 3;
12682
12683         // level sketch element number might consist of four digits
12684         if (ptr[0] >= '0' && ptr[0] <= '9')
12685         {
12686           element = element * 10 + (ptr[0] - '0');
12687           ptr++;
12688         }
12689
12690         // remap some (historic, now obsolete) elements
12691         element = getMappedElement(element);
12692
12693         if (element >= NUM_FILE_ELEMENTS)
12694           element = EL_UNKNOWN;
12695
12696         brush_buffer[x][y] = element;
12697
12698         brush_width  = MAX(x + 1, brush_width);
12699         brush_height = MAX(y + 1, brush_height);
12700
12701         x++;
12702
12703         if (x >= MAX_LEV_FIELDX)
12704           start_new_row = TRUE;
12705
12706         allow_new_row = TRUE;
12707       }
12708       else
12709       {
12710         if ((*ptr == '\n' || *ptr == '\r') && allow_new_row)
12711           start_new_row = TRUE;
12712
12713         ptr++;          // !!! FIX THIS for real UTF-8 handling !!!
12714       }
12715
12716       if (start_new_row)
12717       {
12718         x = 0;
12719         y++;
12720
12721         if (y >= MAX_LEV_FIELDY)
12722           stop = TRUE;
12723
12724         allow_new_row = FALSE;
12725       }
12726     }
12727
12728     SDL_free(clipboard_text);
12729
12730     if (brush_width == 0 || brush_height == 0)
12731     {
12732       Request("No level sketch found in clipboard!", REQ_CONFIRM);
12733
12734       return;
12735     }
12736
12737     if (copy_to_brush)
12738     {
12739       struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_DRAWING_LEVEL];
12740       int mx, my;
12741
12742       SDL_GetMouseState(&mx, &my);
12743
12744       // if inside drawing area, activate and draw brush at last mouse position
12745       if (mx >= gi->x && mx < gi->x + gi->width &&
12746           my >= gi->y && my < gi->y + gi->height)
12747         CopyBrushToCursor(last_cursor_x, last_cursor_y);
12748
12749       draw_with_brush = TRUE;
12750     }
12751     else
12752     {
12753       char request[100];
12754
12755       sprintf(request, "Replace level with %dx%d level sketch from clipboard?",
12756               brush_width, brush_height);
12757
12758       if (!Request(request, REQ_ASK))
12759         return;
12760
12761       for (x = 0; x < MAX_LEV_FIELDX; x++)
12762         for (y = 0; y < MAX_LEV_FIELDY; y++)
12763           Tile[x][y] = brush_buffer[x][y];
12764
12765       lev_fieldx = level.fieldx = brush_width;
12766       lev_fieldy = level.fieldy = brush_height;
12767
12768       boolean use_em_engine = TRUE;
12769       boolean use_sp_engine = TRUE;
12770       boolean use_mm_engine = TRUE;
12771
12772       for (x = 0; x < MAX_LEV_FIELDX; x++)
12773       {
12774         for (y = 0; y < MAX_LEV_FIELDY; y++)
12775         {
12776           int element = Tile[x][y];
12777
12778           if (!IS_EM_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
12779             use_em_engine = FALSE;
12780
12781           if (!IS_SP_ELEMENT(element))
12782             use_sp_engine = FALSE;
12783
12784           if (!IS_MM_ELEMENT(element) && element != EL_EMPTY)
12785             use_mm_engine = FALSE;
12786         }
12787       }
12788
12789       level.game_engine_type = (use_em_engine ? GAME_ENGINE_TYPE_EM :
12790                                 use_sp_engine ? GAME_ENGINE_TYPE_SP :
12791                                 use_mm_engine ? GAME_ENGINE_TYPE_MM :
12792                                 GAME_ENGINE_TYPE_RND);
12793
12794       // update element selection list
12795       ReinitializeElementList();
12796       ModifyEditorElementList();
12797
12798       SetBorderElement();
12799
12800       DrawEditModeWindow();
12801       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
12802     }
12803
12804     return;
12805   }
12806
12807   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
12808     return;
12809
12810   if (mode == CB_AREA_TO_BRUSH)
12811   {
12812     int from_lx, from_ly;
12813
12814     if (from_x > to_x)
12815       swap_numbers(&from_x, &to_x);
12816
12817     if (from_y > to_y)
12818       swap_numbers(&from_y, &to_y);
12819
12820     brush_width = to_x - from_x + 1;
12821     brush_height = to_y - from_y + 1;
12822
12823     from_lx = from_x + level_xpos;
12824     from_ly = from_y + level_ypos;
12825
12826     for (y = 0; y < brush_height; y++)
12827     {
12828       for (x = 0; x < brush_width; x++)
12829       {
12830         brush_buffer[x][y] = Tile[from_lx + x][from_ly + y];
12831
12832         if (button != 1)
12833           DrawBrushElement(from_x + x, from_y + y, new_element, TRUE);
12834       }
12835     }
12836
12837     if (button != 1)
12838       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
12839
12840     delete_old_brush = FALSE;
12841   }
12842   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
12843            mode == CB_BRUSH_TO_LEVEL)
12844   {
12845     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
12846     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
12847     int cursor_from_x = cursor_x - brush_width / 2;
12848     int cursor_from_y = cursor_y - brush_height / 2;
12849     int border_from_x = cursor_x, border_from_y = cursor_y;
12850     int border_to_x = cursor_x, border_to_y = cursor_y;
12851
12852     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
12853       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
12854
12855     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
12856         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
12857     {
12858       delete_old_brush = FALSE;
12859
12860       return;
12861     }
12862
12863     for (y = 0; y < brush_height; y++)
12864     {
12865       for (x = 0; x < brush_width; x++)
12866       {
12867         int sx = cursor_from_x + x;
12868         int sy = cursor_from_y + y;
12869         int lx = sx + level_xpos;
12870         int ly = sy + level_ypos;
12871         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
12872         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
12873                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
12874                        brush_buffer[x][y] : new_element);
12875
12876         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
12877         {
12878           if (sx < border_from_x)
12879             border_from_x = sx;
12880           else if (sx > border_to_x)
12881             border_to_x = sx;
12882           if (sy < border_from_y)
12883             border_from_y = sy;
12884           else if (sy > border_to_y)
12885             border_to_y = sy;
12886
12887           DrawBrushElement(sx, sy, element, change_level);
12888         }
12889       }
12890     }
12891
12892     if (mode != CB_DELETE_OLD_CURSOR)
12893       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
12894
12895     last_cursor_x = cursor_x;
12896     last_cursor_y = cursor_y;
12897
12898     delete_old_brush = TRUE;
12899   }
12900   else if (mode == CB_FLIP_BRUSH_X)
12901   {
12902     for (y = 0; y < brush_height; y++)
12903       for (x = 0; x < (brush_width + 1) / 2; x++)
12904         SwapFlippedTiles(&brush_buffer[x][y],
12905                          &brush_buffer[brush_width - x - 1][y], mode);
12906
12907     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
12908   }
12909   else if (mode == CB_FLIP_BRUSH_Y)
12910   {
12911     for (y = 0; y < (brush_height + 1) / 2; y++)
12912       for (x = 0; x < brush_width; x++)
12913         SwapFlippedTiles(&brush_buffer[x][y],
12914                          &brush_buffer[x][brush_height - y - 1], mode);
12915
12916     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
12917   }
12918   else if (mode == CB_FLIP_BRUSH_XY)
12919   {
12920     CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
12921
12922     for (y = 0; y < MAX(brush_width, brush_height); y++)
12923       for (x = 0; x <= y; x++)
12924         SwapFlippedTiles(&brush_buffer[x][y],
12925                          &brush_buffer[y][x], mode);
12926
12927     swap_numbers(&brush_width, &brush_height);
12928
12929     CopyBrushExt(last_cursor_x, last_cursor_y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
12930   }
12931
12932   if (mode == CB_UPDATE_BRUSH_POSITION)
12933   {
12934     last_cursor_x = from_x;
12935     last_cursor_y = from_y;
12936   }
12937 }
12938
12939 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
12940                             int button)
12941 {
12942   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
12943 }
12944
12945 static void CopyBrushToLevel(int x, int y, int button)
12946 {
12947   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
12948 }
12949
12950 static void CopyBrushToCursor(int x, int y)
12951 {
12952   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
12953 }
12954
12955 static void UpdateBrushPosition(int x, int y)
12956 {
12957   CopyBrushExt(x, y, 0, 0, 0, CB_UPDATE_BRUSH_POSITION);
12958 }
12959
12960 static void DeleteBrushFromCursor(void)
12961 {
12962   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
12963 }
12964
12965 static void FlipBrushX(void)
12966 {
12967   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
12968 }
12969
12970 static void FlipBrushY(void)
12971 {
12972   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_Y);
12973 }
12974
12975 static void RotateBrush(void)
12976 {
12977   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_XY);
12978   CopyBrushExt(0, 0, 0, 0, 0, CB_FLIP_BRUSH_X);
12979 }
12980
12981 void DumpBrush(void)
12982 {
12983   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
12984 }
12985
12986 void DumpBrush_Small(void)
12987 {
12988   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
12989 }
12990
12991 void CopyClipboardToBrush(void)
12992 {
12993   CopyBrushExt(0, 0, 0, 0, 0, CB_CLIPBOARD_TO_BRUSH);
12994 }
12995
12996 void CopyBrushToClipboard(void)
12997 {
12998   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD);
12999 }
13000
13001 void CopyBrushToClipboard_Small(void)
13002 {
13003   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD_SMALL);
13004 }
13005
13006 void UndoLevelEditorOperation(void)
13007 {
13008   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], -1);
13009 }
13010
13011 void RedoLevelEditorOperation(void)
13012 {
13013   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
13014 }
13015
13016 static void FloodFill(int from_x, int from_y, int fill_element)
13017 {
13018   FloodFillLevel(from_x, from_y, fill_element, Tile, lev_fieldx, lev_fieldy);
13019 }
13020
13021 static void FloodFillWall_MM(int from_sx2, int from_sy2, int fill_element)
13022 {
13023   int from_x = from_sx2 + 2 * level_xpos;
13024   int from_y = from_sy2 + 2 * level_ypos;
13025   int max_fillx = lev_fieldx * 2;
13026   int max_filly = lev_fieldy * 2;
13027   short Fill[max_fillx][max_filly];
13028   int x, y;
13029
13030   for (x = 0; x < max_fillx; x++)
13031     for (y = 0; y < max_filly; y++)
13032       Fill[x][y] = getLevelElementHiRes(x, y);
13033
13034   FloodFillLevelExt(from_x, from_y, fill_element, max_fillx, max_filly,
13035                     Fill, max_fillx, max_filly);
13036
13037   for (x = 0; x < max_fillx; x++)
13038     for (y = 0; y < max_filly; y++)
13039       if (Fill[x][y] == fill_element)
13040         SetLevelElementHiRes(x, y, Fill[x][y]);
13041 }
13042
13043 // values for DrawLevelText() modes
13044 #define TEXT_INIT               0
13045 #define TEXT_SETCURSOR          1
13046 #define TEXT_WRITECHAR          2
13047 #define TEXT_BACKSPACE          3
13048 #define TEXT_NEWLINE            4
13049 #define TEXT_END                5
13050 #define TEXT_QUERY_TYPING       6
13051
13052 static int DrawLevelText(int sx, int sy, char letter, int mode)
13053 {
13054   static short delete_buffer[MAX_LEV_FIELDX];
13055   static int start_sx;
13056   static int last_sx, last_sy;
13057   static boolean typing = FALSE;
13058   int letter_element;
13059   int lx = 0, ly = 0;
13060
13061   // map lower case letters to upper case and convert special characters
13062   if (letter >= 'a' && letter <= 'z')
13063     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
13064   else if (letter == CHAR_BYTE_UMLAUT_a || letter == CHAR_BYTE_UMLAUT_A)
13065     letter_element = EL_CHAR_AUMLAUT;
13066   else if (letter == CHAR_BYTE_UMLAUT_o || letter == CHAR_BYTE_UMLAUT_O)
13067     letter_element = EL_CHAR_OUMLAUT;
13068   else if (letter == CHAR_BYTE_UMLAUT_u || letter == CHAR_BYTE_UMLAUT_U)
13069     letter_element = EL_CHAR_UUMLAUT;
13070   else if (letter == '^')
13071     letter_element = EL_CHAR_COPYRIGHT;
13072   else
13073     letter_element = EL_CHAR_ASCII0 + letter;
13074
13075   if (mode != TEXT_INIT)
13076   {
13077     if (!typing)
13078       return FALSE;
13079
13080     if (mode != TEXT_SETCURSOR)
13081     {
13082       sx = last_sx;
13083       sy = last_sy;
13084     }
13085
13086     lx = last_sx + level_xpos;
13087     ly = last_sy + level_ypos;
13088   }
13089
13090   switch (mode)
13091   {
13092     case TEXT_INIT:
13093       if (typing)
13094         DrawLevelText(0, 0, 0, TEXT_END);
13095
13096       typing = TRUE;
13097       start_sx = sx;
13098       last_sx = sx;
13099       last_sy = sy;
13100       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
13101       break;
13102
13103     case TEXT_SETCURSOR:
13104       DrawEditorElement(last_sx, last_sy, Tile[lx][ly]);
13105       DrawAreaBorder(sx, sy, sx, sy);
13106       StartTextInput(SX + sx * ed_tilesize, SY + sy * ed_tilesize,
13107                      ed_tilesize, ed_tilesize);
13108       last_sx = sx;
13109       last_sy = sy;
13110       break;
13111
13112     case TEXT_WRITECHAR:
13113       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
13114       {
13115         if (new_element1 >= EL_STEEL_CHAR_START &&
13116             new_element1 <= EL_STEEL_CHAR_END)
13117           letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
13118
13119         delete_buffer[sx - start_sx] = Tile[lx][ly];
13120         Tile[lx][ly] = letter_element;
13121
13122         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
13123           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
13124         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
13125           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
13126         else
13127           DrawLevelText(0, 0, 0, TEXT_END);
13128
13129         level.changed = TRUE;
13130       }
13131       break;
13132
13133     case TEXT_BACKSPACE:
13134       if (sx > start_sx)
13135       {
13136         Tile[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
13137         DrawEditorElement(sx - 1, sy, Tile[lx - 1][ly]);
13138         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
13139       }
13140       break;
13141
13142     case TEXT_NEWLINE:
13143       if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
13144         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
13145       else
13146         DrawLevelText(0, 0, 0, TEXT_END);
13147       break;
13148
13149     case TEXT_END:
13150       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13151       DrawEditorElement(sx, sy, Tile[lx][ly]);
13152       StopTextInput();
13153       typing = FALSE;
13154       break;
13155
13156     case TEXT_QUERY_TYPING:
13157       break;
13158
13159     default:
13160       break;
13161   }
13162
13163   return typing;
13164 }
13165
13166 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
13167                           int element, boolean change_level)
13168 {
13169   int lx = sx + level_xpos;
13170   int ly = sy + level_ypos;
13171
13172   if (element == -1)
13173     DrawEditorElement(sx, sy, Tile[lx][ly]);
13174   else
13175     DrawAreaBorder(sx, sy, sx, sy);
13176 }
13177
13178 static void CheckLevelBorderElement(boolean redraw_playfield)
13179 {
13180   int last_border_element = BorderElement;
13181
13182   SetBorderElement();
13183
13184   if (redraw_playfield && BorderElement != last_border_element)
13185     DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13186 }
13187
13188 static void CopyLevelToUndoBuffer(int mode)
13189 {
13190   static boolean accumulated_undo = FALSE;
13191   boolean new_undo_buffer_position = TRUE;
13192   int x, y;
13193
13194   if (undo_buffer_steps == 0)
13195     accumulated_undo = FALSE;
13196
13197   switch (mode)
13198   {
13199     case UNDO_IMMEDIATE:
13200       accumulated_undo = FALSE;
13201       break;
13202
13203     case UNDO_ACCUMULATE:
13204       if (accumulated_undo)
13205         new_undo_buffer_position = FALSE;
13206       accumulated_undo = TRUE;
13207       break;
13208
13209     default:
13210       break;
13211   }
13212
13213   if (new_undo_buffer_position)
13214   {
13215     // advance position in undo buffer ring
13216     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
13217
13218     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
13219       undo_buffer_steps++;
13220   }
13221
13222   // always reset redo buffer when storing level change into undo buffer
13223   redo_buffer_steps = 0;
13224
13225   for (x = 0; x < lev_fieldx; x++)
13226     for (y = 0; y < lev_fieldy; y++)
13227       UndoBuffer[undo_buffer_position][x][y] = Tile[x][y];
13228
13229   // check if drawing operation forces change of border style
13230   CheckLevelBorderElement(TRUE);
13231
13232   level.changed = TRUE;
13233 }
13234
13235 static void RandomPlacement(int new_element)
13236 {
13237   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
13238   int num_free_positions = 0;
13239   int num_percentage, num_elements;
13240   int x, y;
13241
13242   ResetIntelliDraw();
13243
13244   // determine number of free positions for randomly placing the new element
13245   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
13246   {
13247     free_position[x][y] =
13248       (random_placement_background_restricted ?
13249        Tile[x][y] == random_placement_background_element :
13250        Tile[x][y] != new_element);
13251
13252     if (free_position[x][y])
13253       num_free_positions++;
13254   }
13255
13256   // determine number of new elements to place there
13257   num_percentage = num_free_positions * random_placement_value / 100;
13258   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
13259                   num_percentage : random_placement_value);
13260
13261   // if less free positions than elements to place, fill all these positions
13262   if (num_free_positions < num_elements)
13263   {
13264     for (x = 0; x < lev_fieldx; x++)
13265       for (y = 0; y < lev_fieldy; y++)
13266         if (free_position[x][y])
13267           SetElement(x, y, new_element);
13268   }
13269   else
13270   {
13271     while (num_elements > 0)
13272     {
13273       x = GetSimpleRandom(lev_fieldx);
13274       y = GetSimpleRandom(lev_fieldy);
13275
13276       // don't place element at the same position twice
13277       if (free_position[x][y])
13278       {
13279         free_position[x][y] = FALSE;
13280         SetElement(x, y, new_element);
13281         num_elements--;
13282       }
13283     }
13284   }
13285
13286   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13287   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13288 }
13289
13290 static void WrapLevel(int dx, int dy)
13291 {
13292   int wrap_dx = lev_fieldx - dx;
13293   int wrap_dy = lev_fieldy - dy;
13294   int x, y;
13295
13296   for (x = 0; x < lev_fieldx; x++)
13297     for (y = 0; y < lev_fieldy; y++)
13298       TileBackup[x][y] = Tile[x][y];
13299
13300   for (x = 0; x < lev_fieldx; x++)
13301     for (y = 0; y < lev_fieldy; y++)
13302       Tile[x][y] =
13303         TileBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
13304
13305   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13306   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
13307 }
13308
13309 static void DrawAreaElementHighlight(boolean highlighted,
13310                                      boolean highlighted_similar)
13311 {
13312   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13313
13314   if (!highlighted)
13315     return;
13316
13317   int x, y;
13318
13319   for (x = 0; x < ed_fieldx; x++)
13320   {
13321     for (y = 0; y < ed_fieldy; y++)
13322     {
13323       boolean highlight = FALSE;
13324       int lx = x + level_xpos;
13325       int ly = y + level_ypos;
13326
13327       if (!IN_LEV_FIELD(lx, ly))
13328         continue;
13329
13330       // check if element is the same
13331       if (Tile[lx][ly] == new_element1)
13332         highlight = TRUE;
13333
13334       // check if element is similar
13335       if (highlighted_similar &&
13336           strEqual(element_info[Tile[lx][ly]].class_name,
13337                    element_info[new_element1].class_name))
13338         highlight = TRUE;
13339
13340       // check if element is matching MM style wall
13341       if (IS_MM_WALL(Tile[lx][ly]) &&
13342           map_mm_wall_element(Tile[lx][ly]) == new_element1)
13343         highlight = TRUE;
13344
13345       if (!highlight)
13346         continue;
13347
13348       if (IS_MM_WALL(Tile[lx][ly]) && !highlighted_similar)
13349       {
13350         int i;
13351
13352         for (i = 0; i < 4; i++)
13353         {
13354           if (!(MM_WALL_BITS(Tile[lx][ly]) & (1 << i)))
13355             continue;
13356
13357           int xx = x * 2 + (i % 2);
13358           int yy = y * 2 + (i / 2);
13359           int sx = SX + xx * ed_tilesize / 2;
13360           int sy = SY + yy * ed_tilesize / 2;
13361           int from_sx = sx;
13362           int from_sy = sy;
13363           int to_sx = sx + ed_tilesize / 2 - 1;
13364           int to_sy = sy + ed_tilesize / 2 - 1;
13365
13366           DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
13367           DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
13368           DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
13369           DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
13370         }
13371       }
13372       else
13373       {
13374         int sx = SX + x * ed_tilesize;
13375         int sy = SY + y * ed_tilesize;
13376         int from_sx = sx;
13377         int from_sy = sy;
13378         int to_sx = sx + ed_tilesize - 1;
13379         int to_sy = sy + ed_tilesize - 1;
13380
13381         DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
13382         DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
13383         DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
13384         DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
13385       }
13386     }
13387   }
13388 }
13389
13390 static void CopyLevelTemplateToUserLevelSet(char *levelset_subdir)
13391 {
13392   char *template_filename_old = getLocalLevelTemplateFilename();
13393   char *template_filename_new =
13394     getPath2(getUserLevelDir(levelset_subdir), LEVELTEMPLATE_FILENAME);
13395
13396   if (copyFile(template_filename_old, template_filename_new) != 0)
13397     Request("Cannot copy level template!", REQ_CONFIRM);
13398
13399   free(template_filename_new);
13400 }
13401
13402 static void HandleDrawingAreas(struct GadgetInfo *gi)
13403 {
13404   static boolean started_inside_drawing_area = FALSE;
13405   static int last_sx = -1;
13406   static int last_sy = -1;
13407   static int last_sx2 = -1;
13408   static int last_sy2 = -1;
13409   int id = gi->custom_id;
13410   int type_id = gi->custom_type_id;
13411   boolean button_press_event;
13412   boolean button_release_event;
13413   boolean inside_drawing_area = !gi->event.off_borders;
13414   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
13415   int actual_drawing_function;
13416   int button = gi->event.button;
13417   int new_element = BUTTON_ELEMENT(button);
13418   int sx = gi->event.x, sy = gi->event.y;
13419   int min_sx = 0, min_sy = 0;
13420   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
13421   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
13422   int mini_item_xsize = item_xsize / 2, mini_item_ysize = item_ysize / 2;
13423   int sx2 = gi->event.mx / mini_item_xsize;
13424   int sy2 = gi->event.my / mini_item_ysize;
13425   int dx = sx2 % 2;
13426   int dy = sy2 % 2;
13427   int lx = 0, ly = 0;
13428   int x, y;
13429
13430   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
13431   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
13432
13433   // make sure to stay inside drawing area boundaries
13434   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
13435   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
13436
13437   if (draw_level)
13438   {
13439     int min_lx = 0, min_ly = 0;
13440     int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
13441
13442     // get positions inside level field
13443     lx = sx + level_xpos;
13444     ly = sy + level_ypos;
13445
13446     if (!IN_LEV_FIELD(lx, ly))
13447       inside_drawing_area = FALSE;
13448
13449     // make sure to stay inside level field boundaries
13450     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
13451     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
13452
13453     // correct drawing area positions accordingly
13454     sx = lx - level_xpos;
13455     sy = ly - level_ypos;
13456   }
13457
13458   // also correct MM wall-sized (double) drawing area positions accordingly
13459   if (sx2 / 2 < sx || sx2 / 2 > sx)
13460   {
13461     dx = (sx2 / 2 < sx ? 0 : 1);
13462     sx2 = sx * 2 + dx;
13463   }
13464   if (sy2 / 2 < sy || sy2 / 2 > sy)
13465   {
13466     dy = (sy2 / 2 < sy ? 0 : 1);
13467     sy2 = sy * 2 + dy;
13468   }
13469
13470   if (!button_press_event && !button_release_event)
13471   {
13472     int old_element = (IN_LEV_FIELD(lx, ly) ? Tile[lx][ly] : EL_UNDEFINED);
13473     boolean hires_drawing = (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
13474                              isHiresTileElement(old_element) &&
13475                              isHiresDrawElement(new_element));
13476
13477     // prevent handling events for every pixel position when moving mouse
13478     if ((sx == last_sx && sy == last_sy && !hires_drawing) ||
13479         (sx2 == last_sx2 && sy2 == last_sy2))
13480       return;
13481   }
13482
13483   last_sx = sx;
13484   last_sy = sy;
13485   last_sx2 = sx2;
13486   last_sy2 = sy2;
13487
13488   if (button_press_event)
13489     started_inside_drawing_area = inside_drawing_area;
13490
13491   if (!started_inside_drawing_area)
13492     return;
13493
13494   if (!IS_VALID_BUTTON(button))
13495     return;
13496
13497   // handle info callback for each invocation of action callback
13498   gi->callback_info(gi);
13499
13500   // automatically switch to 'single item' drawing mode, if needed
13501   actual_drawing_function =
13502     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
13503      drawing_function : GADGET_ID_SINGLE_ITEMS);
13504
13505   // clicking into drawing area with pressed Control key picks element
13506   if (GetKeyModState() & KMOD_Control)
13507   {
13508     last_drawing_function = drawing_function;
13509     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
13510   }
13511
13512   if (GetKeyModState() & KMOD_Shift)
13513   {
13514     if (button_press_event || button_release_event)
13515       ResetIntelliDraw();
13516   }
13517
13518   SetDrawModeHiRes(-1);         // reset to normal draw mode
13519
13520   switch (actual_drawing_function)
13521   {
13522     case GADGET_ID_SINGLE_ITEMS:
13523       if (draw_level)
13524       {
13525         if (button_release_event)
13526         {
13527           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13528
13529           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
13530               !inside_drawing_area)
13531             DeleteBrushFromCursor();
13532
13533           break;
13534         }
13535
13536         if (draw_with_brush)
13537         {
13538           CopyBrushToLevel(sx, sy, button);
13539         }
13540         else
13541         {
13542           SetDrawModeHiRes(new_element);
13543
13544           if (IS_PLAYER_ELEMENT(new_element) || IS_MM_MCDUFFIN(new_element))
13545           {
13546             // remove player at old position
13547             for (y = 0; y < lev_fieldy; y++)
13548             {
13549               for (x = 0; x < lev_fieldx; x++)
13550               {
13551                 int old_element = Tile[x][y];
13552
13553                 if (IS_PLAYER_ELEMENT(old_element) &&
13554                     IS_PLAYER_ELEMENT(new_element))
13555                 {
13556                   int replaced_with_element =
13557                     (old_element == EL_SOKOBAN_FIELD_PLAYER &&
13558                      new_element == EL_PLAYER_1 ? EL_SOKOBAN_FIELD_EMPTY :
13559
13560                      old_element == EL_SOKOBAN_FIELD_PLAYER &&
13561                      new_element == old_element ? EL_SOKOBAN_FIELD_EMPTY :
13562
13563                      new_element == EL_SOKOBAN_FIELD_PLAYER &&
13564                      old_element == EL_PLAYER_1 ? EL_EMPTY :
13565
13566                      new_element >= EL_PLAYER_1 &&
13567                      new_element <= EL_PLAYER_4 &&
13568                      new_element == old_element ? EL_EMPTY :
13569
13570                      old_element);
13571
13572                   SetElement(x, y, replaced_with_element);
13573                 }
13574                 else if (IS_MM_MCDUFFIN(old_element) &&
13575                          IS_MM_MCDUFFIN(new_element))
13576                 {
13577                   // remove McDuffin at old position
13578                   SetElement(x, y, EL_EMPTY);
13579                 }
13580               }
13581             }
13582           }
13583
13584           SetElementButton(lx, ly, dx, dy, new_element, button);
13585         }
13586       }
13587       else if (!button_release_event)
13588       {
13589         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
13590
13591         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
13592           DrawMiniGraphicExt(drawto,
13593                              gi->x + sx * MINI_TILEX,
13594                              gi->y + sy * MINI_TILEY,
13595                              el2edimg(new_element));
13596         else
13597           DrawFixedGraphicExt(drawto,
13598                               gi->x + sx * TILEX,
13599                               gi->y + sy * TILEY,
13600                               el2edimg(new_element), 0);
13601
13602         if (id == GADGET_ID_CUSTOM_GRAPHIC)
13603           new_element = GFX_ELEMENT(new_element);
13604
13605         drawingarea_info[type_id].value[pos] = new_element;
13606
13607         CopyElementPropertiesToGame(properties_element);
13608
13609         if (id == GADGET_ID_CUSTOM_GRAPHIC)
13610         {
13611           UpdateCustomElementGraphicGadgets();
13612
13613           FrameCounter = 0;     // restart animation frame counter
13614         }
13615       }
13616       break;
13617
13618     case GADGET_ID_CONNECTED_ITEMS:
13619       {
13620         static int last_sx = -1;
13621         static int last_sy = -1;
13622
13623         if (button_release_event)
13624           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13625
13626         SetDrawModeHiRes(new_element);
13627
13628         if (getDrawModeHiRes())
13629         {
13630           sx = sx2;
13631           sy = sy2;
13632         }
13633
13634         if (!button_press_event)
13635           DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
13636
13637         last_sx = sx;
13638         last_sy = sy;
13639       }
13640       break;
13641
13642     case GADGET_ID_LINE:
13643     case GADGET_ID_ARC:
13644     case GADGET_ID_RECTANGLE:
13645     case GADGET_ID_FILLED_BOX:
13646       SetDrawModeHiRes(new_element);
13647
13648       if (getDrawModeHiRes())
13649       {
13650         sx = sx2;
13651         sy = sy2;
13652       }
13653       // FALLTHROUGH
13654     case GADGET_ID_GRAB_BRUSH:
13655     case GADGET_ID_TEXT:
13656       {
13657         static int last_sx = -1;
13658         static int last_sy = -1;
13659         static int start_sx = -1;
13660         static int start_sy = -1;
13661         void (*draw_func)(int, int, int, int, int, boolean);
13662
13663         if (drawing_function == GADGET_ID_LINE)
13664           draw_func = DrawLine;
13665         else if (drawing_function == GADGET_ID_ARC)
13666           draw_func = DrawArc;
13667         else if (drawing_function == GADGET_ID_RECTANGLE)
13668           draw_func = DrawBox;
13669         else if (drawing_function == GADGET_ID_FILLED_BOX)
13670           draw_func = DrawFilledBox;
13671         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
13672           draw_func = SelectArea;
13673         else // (drawing_function == GADGET_ID_TEXT)
13674           draw_func = SetTextCursor;
13675
13676         if (button_press_event)
13677         {
13678           draw_func(sx, sy, sx, sy, new_element, FALSE);
13679           start_sx = last_sx = sx;
13680           start_sy = last_sy = sy;
13681
13682           if (drawing_function == GADGET_ID_TEXT)
13683             DrawLevelText(0, 0, 0, TEXT_END);
13684         }
13685         else if (button_release_event)
13686         {
13687           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
13688           if (drawing_function == GADGET_ID_GRAB_BRUSH)
13689           {
13690             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
13691             CopyBrushToCursor(sx, sy);
13692             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
13693                           MB_LEFTBUTTON);
13694             draw_with_brush = TRUE;
13695           }
13696           else if (drawing_function == GADGET_ID_TEXT)
13697             DrawLevelText(sx, sy, 0, TEXT_INIT);
13698           else
13699             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13700         }
13701         else if (last_sx != sx || last_sy != sy)
13702         {
13703           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
13704           if (IS_MM_WALL_EDITOR(new_element))   // clear wall background
13705             draw_func(start_sx, start_sy, sx, sy, EL_EMPTY, FALSE);
13706           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
13707           last_sx = sx;
13708           last_sy = sy;
13709         }
13710       }
13711       break;
13712
13713     case GADGET_ID_FLOOD_FILL:
13714       if (button_press_event && Tile[lx][ly] != new_element)
13715       {
13716         if (IS_MM_WALL_EDITOR(new_element))
13717           FloodFillWall_MM(sx2, sy2, new_element);
13718         else
13719           FloodFill(lx, ly, new_element);
13720
13721         DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13722         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13723       }
13724       break;
13725
13726     case GADGET_ID_PICK_ELEMENT:
13727       if (button_release_event)
13728         ClickOnGadget(level_editor_gadget[last_drawing_function],
13729                       MB_LEFTBUTTON);
13730       else if (draw_level)
13731         PickDrawingElement(button, Tile[lx][ly]);
13732       else
13733       {
13734         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
13735
13736         PickDrawingElement(button, drawingarea_info[type_id].value[pos]);
13737       }
13738
13739     default:
13740       break;
13741   }
13742
13743   // do not mark level as modified for certain non-level-changing gadgets
13744   if ((type_id >= ED_DRAWING_ID_EDITOR_FIRST &&
13745        type_id <= ED_DRAWING_ID_EDITOR_LAST) ||
13746       actual_drawing_function == GADGET_ID_GRAB_BRUSH ||
13747       actual_drawing_function == GADGET_ID_PICK_ELEMENT)
13748     return;
13749
13750   level.changed = TRUE;
13751 }
13752
13753 static void HandleCounterButtons(struct GadgetInfo *gi)
13754 {
13755   int gadget_id = gi->custom_id;
13756   int counter_id = gi->custom_type_id;
13757   int button = gi->event.button;
13758   int *counter_value = counterbutton_info[counter_id].value;
13759   int step = BUTTON_STEPSIZE(button) *
13760     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
13761
13762   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
13763   {
13764     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
13765     boolean released = (gi->event.type == GD_EVENT_RELEASED);
13766     boolean level_changed = LevelChanged();
13767
13768     if ((level_changed && pressed) || (!level_changed && released))
13769       return;
13770
13771     if (level_changed && !Request("Level has changed! Discard changes?",
13772                                   REQ_ASK))
13773     {
13774       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
13775         ModifyEditorCounterValue(counter_id, *counter_value);
13776
13777       return;
13778     }
13779   }
13780
13781   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
13782     *counter_value = gi->textinput.number_value;
13783   else
13784     ModifyEditorCounterValue(counter_id, *counter_value + step);
13785
13786   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
13787   {
13788     int last_game_engine_type = level.game_engine_type;
13789
13790     LoadLevel(level_nr);
13791     LoadScore(level_nr);
13792
13793     SaveLevelSetup_SeriesInfo();
13794
13795     TapeErase();
13796
13797     ResetUndoBuffer();
13798     DrawEditModeWindow();
13799
13800     if (level.game_engine_type != last_game_engine_type)
13801     {
13802       // update element selection list
13803       ReinitializeElementList();
13804       ModifyEditorElementList();
13805     }
13806
13807     return;
13808   }
13809
13810   switch (counter_id)
13811   {
13812     case ED_COUNTER_ID_YAMYAM_CONTENT:
13813       DrawYamYamContentAreas();
13814       break;
13815
13816     case ED_COUNTER_ID_BALL_CONTENT:
13817       DrawMagicBallContentAreas();
13818       break;
13819
13820     case ED_COUNTER_ID_ANDROID_CONTENT:
13821       DrawAndroidElementArea();
13822       break;
13823
13824     case ED_COUNTER_ID_GROUP_CONTENT:
13825       DrawGroupElementArea();
13826       CopyGroupElementPropertiesToGame(properties_element);
13827       break;
13828
13829     case ED_COUNTER_ID_INVENTORY_SIZE:
13830       DrawPlayerInitialInventoryArea(properties_element);
13831       break;
13832
13833     case ED_COUNTER_ID_MM_BALL_CONTENT:
13834       DrawMMBallContentArea();
13835       break;
13836
13837     case ED_COUNTER_ID_ENVELOPE_XSIZE:
13838     case ED_COUNTER_ID_ENVELOPE_YSIZE:
13839       DrawEnvelopeTextArea(-1);
13840       break;
13841
13842     case ED_COUNTER_ID_LEVEL_XSIZE:
13843     case ED_COUNTER_ID_LEVEL_YSIZE:
13844       lev_fieldx = level.fieldx;
13845       lev_fieldy = level.fieldy;
13846
13847       // check if resizing of level results in change of border border
13848       SetBorderElement();
13849
13850       break;
13851
13852     default:
13853       break;
13854   }
13855
13856   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
13857        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
13858       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
13859        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
13860     CopyElementPropertiesToGame(properties_element);
13861
13862   // do not mark level as modified for certain non-level-changing gadgets
13863   if ((counter_id >= ED_COUNTER_ID_LEVELSET_FIRST &&
13864        counter_id <= ED_COUNTER_ID_LEVELSET_LAST) ||
13865       (counter_id >= ED_COUNTER_ID_EDITOR_FIRST &&
13866        counter_id <= ED_COUNTER_ID_EDITOR_LAST))
13867     return;
13868
13869   level.changed = TRUE;
13870 }
13871
13872 static void HandleTextInputGadgets(struct GadgetInfo *gi)
13873 {
13874   int type_id = gi->custom_type_id;
13875
13876   strcpy(textinput_info[type_id].value, gi->textinput.value);
13877
13878   if (type_id == ED_TEXTINPUT_ID_ELEMENT_NAME)
13879   {
13880     CopyElementPropertiesToGame(properties_element);
13881
13882     ModifyEditorElementList();  // update changed button info text
13883   }
13884
13885   // do not mark level as modified for certain non-level-changing gadgets
13886   if (type_id >= ED_TEXTINPUT_ID_LEVELSET_FIRST &&
13887       type_id <= ED_TEXTINPUT_ID_LEVELSET_LAST)
13888     return;
13889
13890   level.changed = TRUE;
13891 }
13892
13893 static void HandleTextAreaGadgets(struct GadgetInfo *gi)
13894 {
13895   int type_id = gi->custom_type_id;
13896
13897   strncpy(textarea_info[type_id].value, gi->textarea.value,
13898           MAX_ENVELOPE_TEXT_LEN);
13899   textarea_info[type_id].value[MAX_ENVELOPE_TEXT_LEN] = '\0';
13900
13901   level.changed = TRUE;
13902 }
13903
13904 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
13905 {
13906   int type_id = gi->custom_type_id;
13907   int value_old = *selectbox_info[type_id].value;
13908   int value_new = selectbox_info[type_id].options[gi->selectbox.index].value;
13909
13910   *selectbox_info[type_id].value = value_new;
13911
13912   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE)
13913   {
13914     DrawLevelConfigWindow();
13915   }
13916   else if (type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
13917   {
13918     element_info[properties_element].current_change_page = gi->selectbox.index;
13919
13920     DrawPropertiesWindow();
13921   }
13922   else if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
13923             type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
13924            (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
13925             type_id <= ED_SELECTBOX_ID_CHANGE_LAST) ||
13926            (type_id == ED_SELECTBOX_ID_GROUP_CHOICE_MODE))
13927   {
13928     if (type_id == ED_SELECTBOX_ID_ACTION_TYPE)
13929     {
13930       // when changing action type, also check action mode and action arg
13931       if (value_old != value_new)
13932         setSelectboxSpecialActionVariablesIfNeeded();
13933
13934       DrawPropertiesChange();
13935     }
13936
13937     CopyElementPropertiesToGame(properties_element);
13938   }
13939   else if (type_id == ED_SELECTBOX_ID_GAME_ENGINE_TYPE)
13940   {
13941     // update element selection list
13942     ReinitializeElementList();
13943     ModifyEditorElementList();
13944   }
13945
13946   // do not mark level as modified for certain non-level-changing gadgets
13947   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE ||
13948       type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
13949     return;
13950
13951   level.changed = TRUE;
13952 }
13953
13954 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
13955 {
13956   int type_id = gi->custom_type_id;
13957   int i;
13958
13959   if (type_id >= ED_TAB_BUTTON_ID_LEVELCONFIG_FIRST &&
13960       type_id <= ED_TAB_BUTTON_ID_LEVELCONFIG_LAST)
13961   {
13962     edit_mode_levelconfig = gi->custom_type_id;
13963
13964     DrawLevelConfigWindow();
13965   }
13966   else if (type_id >= ED_TAB_BUTTON_ID_PROPERTIES_FIRST &&
13967            type_id <= ED_TAB_BUTTON_ID_PROPERTIES_LAST)
13968   {
13969     edit_mode_properties = gi->custom_type_id;
13970
13971     DrawPropertiesWindow();
13972   }
13973   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1 ||
13974            type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2)
13975   {
13976     boolean new_template = !fileExists(getLocalLevelTemplateFilename());
13977
13978     // backup original "level.field" (needed to track playfield changes)
13979     CopyPlayfield(level.field, TileBackup);
13980
13981     // "SaveLevelTemplate()" uses "level.field", so copy editor playfield
13982     CopyPlayfield(Tile, level.field);
13983
13984     if (new_template ||
13985         Request("Save this template and kill the old?", REQ_ASK))
13986       SaveLevelTemplate();
13987
13988     if (new_template)
13989       Request("Template saved!", REQ_CONFIRM);
13990
13991     // restore original "level.field" (needed to track playfield changes)
13992     CopyPlayfield(TileBackup, level.field);
13993   }
13994   else if (type_id == ED_TEXTBUTTON_ID_SAVE_LEVELSET)
13995   {
13996     char *levelset_subdir = getLevelSubdirFromSaveMode(levelset_save_mode);
13997
13998     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE &&
13999         leveldir_current->readonly)
14000     {
14001       Request("This level set is read-only!", REQ_CONFIRM);
14002
14003       return;
14004     }
14005
14006     if (strEqual(levelset_name, ""))
14007     {
14008       Request("Please enter level set title!", REQ_CONFIRM);
14009
14010       return;
14011     }
14012
14013     if (strEqual(levelset_author, ""))
14014     {
14015       Request("Please enter level set author!", REQ_CONFIRM);
14016
14017       return;
14018     }
14019
14020     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE)
14021     {
14022       if (UpdateUserLevelSet(levelset_subdir,
14023                              levelset_name,
14024                              levelset_author,
14025                              levelset_num_levels))
14026       {
14027         Request("Level set updated!", REQ_CONFIRM);
14028       }
14029       else
14030       {
14031         Request("Updating level set failed!", REQ_CONFIRM);
14032       }
14033     }
14034     else if (levelset_save_mode == LEVELSET_SAVE_MODE_CREATE)
14035     {
14036       if (level.changed && !Request("Level has changed! Discard changes?",
14037                                      REQ_ASK))
14038         return;
14039
14040       if (CreateUserLevelSet(levelset_subdir,
14041                              levelset_name,
14042                              levelset_author,
14043                              levelset_num_levels,
14044                              levelset_use_levelset_artwork))
14045       {
14046         if (levelset_copy_level_template)
14047           CopyLevelTemplateToUserLevelSet(levelset_subdir);
14048
14049         Request("New level set created!", REQ_CONFIRM);
14050
14051         AddUserLevelSetToLevelInfo(levelset_subdir);
14052         ChangeEditorToLevelSet(levelset_subdir);
14053       }
14054       else
14055       {
14056         Request("Creating new level set failed!", REQ_CONFIRM);
14057       }
14058     }
14059   }
14060   else if (type_id == ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE &&
14061            custom_element.num_change_pages < MAX_CHANGE_PAGES)
14062   {
14063     struct ElementInfo *ei = &element_info[properties_element];
14064
14065     // when modifying custom element, ask for copying level template
14066     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
14067       return;
14068
14069     setElementChangePages(ei, ei->num_change_pages + 1);
14070
14071     // set new change page to be new current change page
14072     ei->current_change_page = ei->num_change_pages - 1;
14073     ei->change = &ei->change_page[ei->current_change_page];
14074
14075     setElementChangeInfoToDefaults(ei->change);
14076
14077     DrawPropertiesWindow();
14078
14079     level.changed = TRUE;
14080   }
14081   else if (type_id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
14082            custom_element.num_change_pages > MIN_CHANGE_PAGES)
14083   {
14084     struct ElementInfo *ei = &element_info[properties_element];
14085
14086     // when modifying custom element, ask for copying level template
14087     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
14088       return;
14089
14090     // copy all change pages after change page to be deleted
14091     for (i = ei->current_change_page; i < ei->num_change_pages - 1; i++)
14092       ei->change_page[i] = ei->change_page[i + 1];
14093
14094     setElementChangePages(ei, ei->num_change_pages - 1);
14095
14096     DrawPropertiesWindow();
14097
14098     level.changed = TRUE;
14099   }
14100 }
14101
14102 static void HandleGraphicbuttonGadgets(struct GadgetInfo *gi)
14103 {
14104   int type_id = gi->custom_type_id;
14105
14106   if (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ||
14107       type_id == ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE)
14108   {
14109     struct ElementInfo *ei = &element_info[properties_element];
14110     int step = BUTTON_STEPSIZE(gi->event.button);
14111
14112     step *= (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ? -1 : +1);
14113     ei->current_change_page += step;
14114
14115     if (ei->current_change_page < 0)
14116       ei->current_change_page = 0;
14117     else if (ei->current_change_page >= ei->num_change_pages)
14118       ei->current_change_page = ei->num_change_pages - 1;
14119
14120     DrawPropertiesWindow();
14121   }
14122   else if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE ||
14123            type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
14124   {
14125     struct ElementInfo *ei = &element_info[properties_element];
14126     int current_change_page = ei->current_change_page;
14127
14128     if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE)
14129     {
14130       element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0] =
14131         ei->change_page[current_change_page];
14132     }
14133     else if (type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
14134     {
14135       // when modifying custom element, ask for copying level template
14136       if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
14137         return;
14138
14139       ei->change_page[current_change_page] =
14140         element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0];
14141
14142       level.changed = TRUE;
14143     }
14144
14145     DrawPropertiesWindow();
14146   }
14147 }
14148
14149 static void HandleRadiobuttons(struct GadgetInfo *gi)
14150 {
14151   int type_id = gi->custom_type_id;
14152
14153   *radiobutton_info[type_id].value =
14154     radiobutton_info[type_id].checked_value;
14155
14156   // do not mark level as modified for certain non-level-changing gadgets
14157   if (type_id >= ED_RADIOBUTTON_ID_EDITOR_FIRST &&
14158       type_id <= ED_RADIOBUTTON_ID_EDITOR_LAST)
14159     return;
14160
14161   level.changed = TRUE;
14162 }
14163
14164 static void HandleCheckbuttons(struct GadgetInfo *gi)
14165 {
14166   int type_id = gi->custom_type_id;
14167
14168   *checkbutton_info[type_id].value ^= TRUE;
14169
14170   if (type_id == ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID ||
14171       type_id == ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID ||
14172       type_id == ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH ||
14173       (((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
14174          type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
14175         (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
14176          type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST)) &&
14177        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1))
14178   {
14179     CopyElementPropertiesToGame(properties_element);
14180   }
14181
14182   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
14183   {
14184     UpdateCustomElementGraphicGadgets();
14185   }
14186   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1 ||
14187            type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2)
14188   {
14189     boolean template_related_changes_found = FALSE;
14190     int i;
14191
14192     // check if any custom, group or empty elements have been changed
14193     for (i = 0; i < NUM_FILE_ELEMENTS; i++)
14194       if ((IS_CUSTOM_ELEMENT(i) ||
14195            IS_GROUP_ELEMENT(i) ||
14196            IS_EMPTY_ELEMENT(i)) &&
14197           element_info[i].modified_settings)
14198         template_related_changes_found = TRUE;
14199
14200     if (level.use_custom_template &&
14201         !fileExists(getGlobalLevelTemplateFilename()))
14202     {
14203       Request("No level template found!", REQ_CONFIRM);
14204
14205       level.use_custom_template = FALSE;
14206
14207       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
14208
14209       return;
14210     }
14211
14212     if (level.use_custom_template &&
14213         template_related_changes_found &&
14214         !Request("Discard changes and use level template?", REQ_ASK))
14215     {
14216       level.use_custom_template = FALSE;
14217
14218       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
14219
14220       return;
14221     }
14222
14223     if (!level.use_custom_template &&
14224         Request("Copy settings from level template?", REQ_ASK))
14225     {
14226       return;
14227     }
14228
14229     LoadLevelTemplate(level.use_custom_template ? -1 : level_nr);
14230
14231     DrawEditModeWindow();
14232   }
14233   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3)
14234   {
14235     if (setup.editor.use_template_for_new_levels &&
14236         !fileExists(getGlobalLevelTemplateFilename()))
14237     {
14238       Request("No level template found!", REQ_CONFIRM);
14239
14240       return;
14241     }
14242
14243     if (setup.editor.use_template_for_new_levels &&
14244         level.changed &&
14245         !Request("Discard level and load template?", REQ_ASK))
14246     {
14247       return;
14248     }
14249
14250     if (!setup.editor.use_template_for_new_levels &&
14251         level.changed &&
14252         !Request("Discard level and use empty level?", REQ_ASK))
14253     {
14254       return;
14255     }
14256
14257     LoadLevel(level_nr);
14258     LoadScore(level_nr);
14259
14260     TapeErase();
14261
14262     ResetUndoBuffer();
14263     DrawEditModeWindow();
14264   }
14265   else if (type_id == ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS)
14266   {
14267     SetAutomaticNumberOfGemsNeeded();
14268   }
14269
14270   // do not mark level as modified for certain non-level-changing gadgets
14271   if ((type_id >= ED_CHECKBUTTON_ID_LEVELSET_FIRST &&
14272        type_id <= ED_CHECKBUTTON_ID_LEVELSET_LAST) ||
14273       (type_id >= ED_CHECKBUTTON_ID_EDITOR_FIRST &&
14274        type_id <= ED_CHECKBUTTON_ID_EDITOR_LAST &&
14275        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2) ||
14276       type_id == ED_CHECKBUTTON_ID_STICK_ELEMENT)
14277     return;
14278
14279   level.changed = TRUE;
14280 }
14281
14282 static void HandleControlButtons(struct GadgetInfo *gi)
14283 {
14284   static int last_level_drawing_function = GADGET_ID_SINGLE_ITEMS;
14285   static int last_edit_mode = ED_MODE_DRAWING;
14286   static int last_custom_copy_mode = -1;
14287   static int last_button = 0;
14288   int id = gi->custom_id;
14289   int button = gi->event.button;
14290   int step = BUTTON_STEPSIZE(button);
14291   int new_element = BUTTON_ELEMENT(button);
14292   int last_properties_element = properties_element;
14293   int x, y;
14294
14295   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
14296     DrawLevelText(0, 0, 0, TEXT_END);
14297
14298   if (id < ED_NUM_CTRL1_BUTTONS &&
14299       id != GADGET_ID_SINGLE_ITEMS &&
14300       id != GADGET_ID_PICK_ELEMENT &&
14301       edit_mode != ED_MODE_DRAWING &&
14302       drawing_function != GADGET_ID_PICK_ELEMENT &&
14303       !(GetKeyModState() & KMOD_Control))
14304     ChangeEditModeWindow(ED_MODE_DRAWING);
14305
14306   // element copy mode active, but no element button pressed => deactivate
14307   if (last_custom_copy_mode != -1 && id < ED_NUM_CTRL_BUTTONS)
14308     last_custom_copy_mode = -1;
14309
14310   // when showing palette on element buttons, change element of button used
14311   if (editor.palette.show_on_element_buttons &&
14312       id >= GADGET_ID_ELEMENT_LEFT && id <= GADGET_ID_ELEMENT_RIGHT)
14313   {
14314     last_button = id - GADGET_ID_ELEMENT_LEFT + 1;
14315
14316     id = GADGET_ID_PALETTE;
14317   }
14318
14319   switch (id)
14320   {
14321     case GADGET_ID_SCROLL_LEFT:
14322       if (level_xpos >= 0)
14323       {
14324         if (lev_fieldx < ed_fieldx - 2)
14325           break;
14326
14327         level_xpos -= step;
14328         if (level_xpos < -1)
14329           level_xpos = -1;
14330         if (button == 1)
14331           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
14332         else
14333           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14334
14335         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
14336                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
14337       }
14338       break;
14339
14340     case GADGET_ID_SCROLL_RIGHT:
14341       if (level_xpos <= lev_fieldx - ed_fieldx)
14342       {
14343         if (lev_fieldx < ed_fieldx - 2)
14344           break;
14345
14346         level_xpos += step;
14347         if (level_xpos > lev_fieldx - ed_fieldx + 1)
14348           level_xpos = lev_fieldx - ed_fieldx + 1;
14349         if (button == 1)
14350           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
14351         else
14352           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14353
14354         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
14355                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
14356       }
14357       break;
14358
14359     case GADGET_ID_SCROLL_UP:
14360       if (level_ypos >= 0)
14361       {
14362         if (lev_fieldy < ed_fieldy - 2)
14363           break;
14364
14365         level_ypos -= step;
14366         if (level_ypos < -1)
14367           level_ypos = -1;
14368         if (button == 1)
14369           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
14370         else
14371           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14372
14373         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
14374                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
14375       }
14376       break;
14377
14378     case GADGET_ID_SCROLL_DOWN:
14379       if (level_ypos <= lev_fieldy - ed_fieldy)
14380       {
14381         if (lev_fieldy < ed_fieldy - 2)
14382           break;
14383
14384         level_ypos += step;
14385         if (level_ypos > lev_fieldy - ed_fieldy + 1)
14386           level_ypos = lev_fieldy - ed_fieldy + 1;
14387         if (button == 1)
14388           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_UP);
14389         else
14390           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14391
14392         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
14393                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
14394       }
14395       break;
14396
14397     case GADGET_ID_SCROLL_HORIZONTAL:
14398       level_xpos = gi->event.item_position - 1;
14399
14400       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14401       BackToFront();
14402
14403       break;
14404
14405     case GADGET_ID_SCROLL_VERTICAL:
14406       level_ypos = gi->event.item_position - 1;
14407
14408       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14409       BackToFront();
14410
14411       break;
14412
14413     case GADGET_ID_SCROLL_LIST_UP:
14414     case GADGET_ID_SCROLL_LIST_DOWN:
14415     case GADGET_ID_SCROLL_LIST_VERTICAL:
14416       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
14417         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
14418       else
14419       {
14420         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
14421         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
14422
14423         if (element_shift < 0)
14424           element_shift = 0;
14425         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
14426           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
14427
14428         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14429                      GDI_SCROLLBAR_ITEM_POSITION,
14430                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14431       }
14432
14433       ModifyEditorElementList();
14434
14435       break;
14436
14437     case GADGET_ID_PROPERTIES:
14438       // always switch off element properties when they are already displayed
14439       last_properties_element = new_element;
14440     case GADGET_ID_ELEMENT_LEFT:
14441     case GADGET_ID_ELEMENT_MIDDLE:
14442     case GADGET_ID_ELEMENT_RIGHT:
14443       properties_element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
14444                             id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
14445                             id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 :
14446                             new_element);
14447
14448       if (edit_mode != ED_MODE_PROPERTIES)
14449       {
14450         last_edit_mode = edit_mode;
14451
14452         ChangeEditModeWindow(ED_MODE_PROPERTIES);
14453
14454         last_level_drawing_function = drawing_function;
14455         ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
14456                       MB_LEFTBUTTON);
14457       }
14458       else if (properties_element != last_properties_element)
14459       {
14460         DrawEditModeWindow();
14461       }
14462       else
14463       {
14464         ChangeEditModeWindow(ED_MODE_DRAWING);
14465
14466         ClickOnGadget(level_editor_gadget[last_level_drawing_function],
14467                       MB_LEFTBUTTON);
14468       }
14469       break;
14470
14471     case GADGET_ID_PALETTE:
14472       if (edit_mode != ED_MODE_PALETTE)
14473       {
14474         last_edit_mode = edit_mode;
14475
14476         ChangeEditModeWindow(ED_MODE_PALETTE);
14477       }
14478       else
14479       {
14480         ChangeEditModeWindow(last_edit_mode);
14481       }
14482       break;
14483
14484     case GADGET_ID_WRAP_LEFT:
14485       WrapLevel(-step, 0);
14486       break;
14487
14488     case GADGET_ID_WRAP_RIGHT:
14489       WrapLevel(step, 0);
14490       break;
14491
14492     case GADGET_ID_WRAP_UP:
14493       WrapLevel(0, -step);
14494       break;
14495
14496     case GADGET_ID_WRAP_DOWN:
14497       WrapLevel(0, step);
14498       break;
14499
14500     case GADGET_ID_SINGLE_ITEMS:
14501     case GADGET_ID_CONNECTED_ITEMS:
14502     case GADGET_ID_LINE:
14503     case GADGET_ID_ARC:
14504     case GADGET_ID_TEXT:
14505     case GADGET_ID_RECTANGLE:
14506     case GADGET_ID_FILLED_BOX:
14507     case GADGET_ID_FLOOD_FILL:
14508     case GADGET_ID_GRAB_BRUSH:
14509     case GADGET_ID_PICK_ELEMENT:
14510       if (drawing_function != GADGET_ID_PICK_ELEMENT)
14511         last_drawing_function = drawing_function;
14512       drawing_function = id;
14513       draw_with_brush = FALSE;
14514       break;
14515
14516     case GADGET_ID_RANDOM_PLACEMENT:
14517       RandomPlacement(new_element);
14518       break;
14519
14520     case GADGET_ID_ZOOM:
14521       // zoom level editor tile size in or out (or reset to default size)
14522       ed_tilesize = (button == 1 ? ed_tilesize * 2 :
14523                      button == 2 ? ed_tilesize_default :
14524                      button == 3 ? ed_tilesize / 2 : ed_tilesize);
14525
14526       // when using touch device, cycle through all zoom tilesizes
14527       if (runtime.uses_touch_device && ed_tilesize > TILESIZE)
14528         ed_tilesize = MICRO_TILESIZE;
14529
14530       // limit zoom level by upper and lower bound
14531       ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
14532
14533       InitZoomLevelSettings(ed_tilesize);
14534
14535       if (edit_mode == ED_MODE_DRAWING)
14536       {
14537         DrawDrawingWindow();
14538
14539         // redraw zoom gadget info text
14540         PrintEditorGadgetInfoText(level_editor_gadget[id]);
14541       }
14542
14543       // save current editor zoom tilesize
14544       SaveSetup_AutoSetup();
14545
14546       break;
14547
14548     case GADGET_ID_CUSTOM_COPY_FROM:
14549     case GADGET_ID_CUSTOM_COPY_TO:
14550     case GADGET_ID_CUSTOM_EXCHANGE:
14551       last_custom_copy_mode = id;
14552       last_drawing_function = drawing_function;
14553       break;
14554
14555     case GADGET_ID_CUSTOM_COPY:
14556       CopyCustomElement(properties_element, -1, id);
14557       break;
14558
14559     case GADGET_ID_CUSTOM_PASTE:
14560       CopyCustomElement(-1, properties_element, id);
14561       break;
14562
14563     case GADGET_ID_UNDO:
14564       if (button < 0)   // keep button value (even if modifier keys are pressed)
14565         button = -button;
14566       else if (button == 1 && GetKeyModState() & (KMOD_Shift | KMOD_Control))
14567         button = 3;
14568
14569       if (button == 1 && undo_buffer_steps == 0)
14570       {
14571         Request("Undo buffer empty!", REQ_CONFIRM);
14572
14573         break;
14574       }
14575       else if (button == 2)
14576       {
14577         break;
14578       }
14579       else if (button == 3 && redo_buffer_steps == 0)
14580       {
14581         Request("Redo buffer empty!", REQ_CONFIRM);
14582
14583         break;
14584       }
14585
14586       if (edit_mode != ED_MODE_DRAWING)
14587         ChangeEditModeWindow(ED_MODE_DRAWING);
14588
14589       if (button == 1)
14590       {
14591         // undo
14592
14593         undo_buffer_position =
14594           (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
14595
14596         undo_buffer_steps--;
14597         redo_buffer_steps++;
14598       }
14599       else
14600       {
14601         // redo
14602
14603         undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
14604
14605         undo_buffer_steps++;
14606         redo_buffer_steps--;
14607       }
14608
14609       for (x = 0; x < lev_fieldx; x++)
14610         for (y = 0; y < lev_fieldy; y++)
14611           Tile[x][y] = UndoBuffer[undo_buffer_position][x][y];
14612
14613       // check if undo operation forces change of border style
14614       CheckLevelBorderElement(FALSE);
14615
14616       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14617
14618       break;
14619
14620     case GADGET_ID_CONF:
14621       if (edit_mode != ED_MODE_LEVELCONFIG)
14622       {
14623         last_edit_mode = edit_mode;
14624
14625         ChangeEditModeWindow(ED_MODE_LEVELCONFIG);
14626       }
14627       else
14628       {
14629         ChangeEditModeWindow(ED_MODE_DRAWING);
14630       }
14631       break;
14632
14633     case GADGET_ID_CLEAR:
14634       if (edit_mode != ED_MODE_DRAWING)
14635         ChangeEditModeWindow(ED_MODE_DRAWING);
14636
14637       for (x = 0; x < MAX_LEV_FIELDX; x++)
14638         for (y = 0; y < MAX_LEV_FIELDY; y++)
14639           Tile[x][y] = (button == 1 ? EL_EMPTY : new_element);
14640
14641       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
14642
14643       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14644       break;
14645
14646     case GADGET_ID_SAVE:
14647     {
14648       // saving read-only levels into personal level set modifies global vars
14649       // "leveldir_current" and "level_nr"; restore them after saving level
14650       LevelDirTree *leveldir_former = leveldir_current;
14651       int level_nr_former = level_nr;
14652       char *level_filename;
14653       boolean new_level;
14654
14655       if (leveldir_current->readonly &&
14656           !PrepareSavingIntoPersonalLevelSet())
14657         break;
14658
14659       level_filename = getDefaultLevelFilename(level_nr);
14660       new_level = !fileExists(level_filename);
14661
14662       if (new_level ||
14663           Request("Save this level and kill the old?", REQ_ASK))
14664       {
14665         if (leveldir_former->readonly)
14666           ModifyLevelConfigForSavingIntoPersonalLevelSet(leveldir_former->name);
14667
14668         SetAutomaticNumberOfGemsNeeded();
14669
14670         CopyPlayfield(Tile, level.field);
14671         SaveLevel(level_nr);
14672
14673         level.changed = FALSE;
14674
14675         if (new_level)
14676         {
14677           char level_saved_msg[64];
14678
14679           if (leveldir_former->readonly)
14680             sprintf(level_saved_msg,
14681                     "Level saved as level %d into personal level set!",
14682                     level_nr);
14683           else
14684             strcpy(level_saved_msg, "Level saved!");
14685
14686           Request(level_saved_msg, REQ_CONFIRM);
14687         }
14688       }
14689
14690       // "cd" back to copied-from levelset (in case of saved read-only level)
14691       leveldir_current = leveldir_former;
14692       level_nr = level_nr_former;
14693
14694       break;
14695     }
14696
14697     case GADGET_ID_TEST:
14698       if (LevelChanged())
14699         level.game_version = GAME_VERSION_ACTUAL;
14700
14701       CopyPlayfield(level.field, TileBackup);
14702       CopyPlayfield(Tile, level.field);
14703
14704       CopyNativeLevel_RND_to_Native(&level);
14705
14706       UnmapLevelEditorGadgets();
14707       UndrawSpecialEditorDoor();
14708
14709       CloseDoor(DOOR_CLOSE_ALL);
14710
14711       // needed before playing if editor playfield area has different size
14712       ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
14713
14714       // redraw_mask = REDRAW_ALL;
14715
14716       level_editor_test_game = TRUE;
14717
14718       StartGameActions(FALSE, setup.autorecord, level.random_seed);
14719
14720       break;
14721
14722     case GADGET_ID_EXIT:
14723       RequestExitLevelEditor(TRUE, FALSE);  // if level has changed, ask user
14724       break;
14725
14726     default:
14727       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
14728           id <= GADGET_ID_ELEMENTLIST_LAST)
14729       {
14730         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
14731
14732         new_element = editor_elements[element_position + element_shift];
14733
14734         if (IS_EDITOR_CASCADE(new_element))
14735         {
14736           int i;
14737
14738           for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
14739           {
14740             int *cascade_element= &(*editor_elements_info[i].headline_list)[0];
14741             boolean *cascade_value=editor_elements_info[i].setup_cascade_value;
14742
14743             if (*cascade_element == new_element)
14744             {
14745               *cascade_element = EL_CASCADE_TOGGLE(*cascade_element);
14746               *cascade_value = IS_EDITOR_CASCADE_ACTIVE(*cascade_element);
14747
14748               // update element selection list
14749               ReinitializeElementList();
14750               ModifyEditorElementList();
14751
14752               // update cascading gadget info text
14753               PrintEditorGadgetInfoText(level_editor_gadget[id]);
14754
14755               // save current editor cascading state
14756               SaveSetup_EditorCascade();
14757
14758               break;
14759             }
14760           }
14761
14762           break;
14763         }
14764
14765         if (last_custom_copy_mode != -1)
14766         {
14767           if (CopyCustomElement(properties_element, new_element,
14768                                 last_custom_copy_mode))
14769           {
14770             ClickOnGadget(level_editor_gadget[last_drawing_function],
14771                           MB_LEFTBUTTON);
14772
14773             last_custom_copy_mode = -1;
14774           }
14775
14776           break;
14777         }
14778
14779         // change element of button used to show palette
14780         if (editor.palette.show_on_element_buttons)
14781           button = last_button;
14782
14783         PickDrawingElement(button, new_element);
14784
14785         if (!stick_element_properties_window &&
14786             drawing_function != GADGET_ID_PICK_ELEMENT &&
14787             !(GetKeyModState() & KMOD_Control))
14788         {
14789           properties_element = new_element;
14790           if (edit_mode == ED_MODE_PROPERTIES)
14791             DrawPropertiesWindow();
14792         }
14793
14794         if (drawing_function == GADGET_ID_PICK_ELEMENT)
14795           ClickOnGadget(level_editor_gadget[last_drawing_function],
14796                         MB_LEFTBUTTON);
14797
14798         if (!use_permanent_palette)
14799           ChangeEditModeWindow(last_edit_mode);
14800       }
14801 #ifdef DEBUG
14802       else if (gi->event.type == GD_EVENT_PRESSED)
14803         Debug("editor", "default: HandleControlButtons: GD_EVENT_PRESSED(%d)", id);
14804       else if (gi->event.type == GD_EVENT_RELEASED)
14805         Debug("editor", "default: HandleControlButtons: GD_EVENT_RELEASED(%d)", id);
14806       else if (gi->event.type == GD_EVENT_MOVING)
14807         Debug("editor", "default: HandleControlButtons: GD_EVENT_MOVING(%d)", id);
14808       else
14809         Debug("editor", "default: HandleControlButtons: ? (id == %d)", id);
14810 #endif
14811       break;
14812   }
14813 }
14814
14815 void HandleLevelEditorKeyInput(Key key)
14816 {
14817   char letter = getCharFromKey(key);
14818
14819   if (drawing_function == GADGET_ID_TEXT &&
14820       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
14821   {
14822     if (letter)
14823       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
14824     else if (key == KSYM_Delete || key == KSYM_BackSpace)
14825       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
14826     else if (key == KSYM_Return)
14827       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
14828     else if (key == KSYM_Escape)
14829       DrawLevelText(0, 0, 0, TEXT_END);
14830
14831     return;
14832   }
14833
14834   int id = GADGET_ID_NONE;
14835   int new_element_shift = element_shift;
14836   int step = ED_ELEMENTLIST_BUTTONS_VERT - 1;
14837   int button = MB_LEFTBUTTON;
14838   int i;
14839
14840   switch (key)
14841   {
14842     case KSYM_Left:
14843       id = GADGET_ID_SCROLL_LEFT;
14844       break;
14845     case KSYM_Right:
14846       id = GADGET_ID_SCROLL_RIGHT;
14847       break;
14848     case KSYM_Up:
14849       id = GADGET_ID_SCROLL_UP;
14850       break;
14851     case KSYM_Down:
14852       id = GADGET_ID_SCROLL_DOWN;
14853       break;
14854
14855     case KSYM_Page_Up:
14856     case KSYM_Page_Down:
14857       step *= (key == KSYM_Page_Up ? -1 : +1);
14858       element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
14859
14860       if (element_shift < 0)
14861         element_shift = 0;
14862       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
14863         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
14864
14865       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14866                    GDI_SCROLLBAR_ITEM_POSITION,
14867                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14868
14869       ModifyEditorElementList();
14870
14871       break;
14872
14873     case KSYM_Home:
14874     case KSYM_End:
14875       element_shift = (key == KSYM_Home ? 0 :
14876                        num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS);
14877
14878       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14879                    GDI_SCROLLBAR_ITEM_POSITION,
14880                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14881
14882       ModifyEditorElementList();
14883
14884       break;
14885
14886     case KSYM_Insert:
14887     case KSYM_Delete:
14888
14889       // this is needed to prevent interference with running "True X-Mouse"
14890       if (GetKeyModStateFromEvents() & KMOD_Control)
14891         break;
14892
14893       // check for last or next editor cascade block in element list
14894       for (i = 0; i < num_editor_elements; i++)
14895       {
14896         if ((key == KSYM_Insert && i == element_shift) ||
14897             (key == KSYM_Delete && new_element_shift > element_shift))
14898           break;
14899
14900         // jump to next cascade block (or to start of element list)
14901         if (i == 0 || IS_EDITOR_CASCADE(editor_elements[i]))
14902           new_element_shift = i;
14903       }
14904
14905       if (i < num_editor_elements)
14906         element_shift = new_element_shift;
14907
14908       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
14909         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
14910
14911       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14912                    GDI_SCROLLBAR_ITEM_POSITION,
14913                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14914
14915       ModifyEditorElementList();
14916
14917       break;
14918
14919     case KSYM_Escape:
14920       if (edit_mode == ED_MODE_DRAWING)
14921         RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
14922       else if (edit_mode == ED_MODE_LEVELCONFIG)
14923         HandleControlButtons(level_editor_gadget[GADGET_ID_CONF]);
14924       else if (edit_mode == ED_MODE_PROPERTIES)
14925         HandleControlButtons(level_editor_gadget[GADGET_ID_PROPERTIES]);
14926       else if (edit_mode == ED_MODE_PALETTE)
14927         HandleControlButtons(level_editor_gadget[GADGET_ID_PALETTE]);
14928       else              // should never happen
14929         ChangeEditModeWindow(ED_MODE_DRAWING);
14930
14931       break;
14932
14933     default:
14934       break;
14935   }
14936
14937   if (id != GADGET_ID_NONE)
14938     ClickOnGadget(level_editor_gadget[id], button);
14939   else if (letter == '1' || letter == '?')
14940     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_LEFT], button);
14941   else if (letter == '2')
14942     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_MIDDLE], button);
14943   else if (letter == '3')
14944     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_RIGHT], button);
14945   else if (letter == '.')
14946     ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
14947   else if (letter == 'U')
14948     ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
14949   else if (letter == '-' || key == KSYM_KP_Subtract)
14950     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 3);
14951   else if (letter == '0' || key == KSYM_KP_0)
14952     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 2);
14953   else if (letter == '+' || key == KSYM_KP_Add ||
14954            letter == '=')       // ("Shift-=" is "+" on US keyboards)
14955     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 1);
14956   else if (key == KSYM_Return ||
14957            key == KSYM_space ||
14958            key == setup.shortcut.toggle_pause)
14959     ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
14960   else
14961     for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
14962       if (letter && letter == controlbutton_info[i].shortcut)
14963         if (!anyTextGadgetActive())
14964           ClickOnGadget(level_editor_gadget[i], button);
14965
14966   if (draw_with_brush)
14967   {
14968     if (letter == 'x')
14969       FlipBrushX();
14970     else if (letter == 'y')
14971       FlipBrushY();
14972     else if (letter == 'z')
14973       RotateBrush();
14974   }
14975 }
14976
14977 static void HandleLevelEditorIdle_Properties(void)
14978 {
14979   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
14980   int x = editor.settings.element_graphic.x + element_border;
14981   int y = editor.settings.element_graphic.y + element_border;
14982   static DelayCounter action_delay = { 0 };
14983   int i;
14984
14985   action_delay.value = GameFrameDelay;
14986
14987   if (!DelayReached(&action_delay))
14988     return;
14989
14990   for (i = 0; i < ED_NUM_SELECTBOX; i++)
14991   {
14992     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[i].gadget_id];
14993
14994     if (gi->mapped && gi->active && gi->selectbox.open)
14995       return;
14996   }
14997
14998   DrawEditorElementAnimation(SX + x, SY + y);
14999
15000   redraw_mask |= REDRAW_FIELD;
15001
15002   FrameCounter++;       // increase animation frame counter
15003 }
15004
15005 static void HandleLevelEditorIdle_Drawing(void)
15006 {
15007   static boolean last_highlighted = FALSE;
15008   static boolean last_highlighted_similar = FALSE;
15009   boolean highlighted = (GetKeyModState() & KMOD_Alt);
15010   boolean highlighted_similar = (GetKeyModState() & KMOD_Shift);
15011
15012   if (highlighted != last_highlighted ||
15013       (highlighted && highlighted_similar != last_highlighted_similar))
15014   {
15015     DrawAreaElementHighlight(highlighted, highlighted_similar);
15016
15017     redraw_mask |= REDRAW_FIELD;
15018   }
15019
15020   last_highlighted = highlighted;
15021   last_highlighted_similar = highlighted_similar;
15022 }
15023
15024 void HandleLevelEditorIdle(void)
15025 {
15026   if (edit_mode == ED_MODE_PROPERTIES)
15027     HandleLevelEditorIdle_Properties();
15028   else if (edit_mode == ED_MODE_DRAWING)
15029     HandleLevelEditorIdle_Drawing();
15030 }
15031
15032 static void ClearEditorGadgetInfoText(void)
15033 {
15034   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
15035 }
15036
15037 void PrintEditorGadgetInfoText(struct GadgetInfo *gi)
15038 {
15039   char infotext[MAX_OUTPUT_LINESIZE + 1];
15040   int max_infotext_len = getMaxInfoTextLength();
15041
15042   if (gi == NULL || strlen(gi->info_text) == 0)
15043     return;
15044
15045   strncpy(infotext, gi->info_text, max_infotext_len);
15046   infotext[max_infotext_len] = '\0';
15047
15048   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
15049   {
15050     int key = controlbutton_info[gi->custom_id].shortcut;
15051
15052     if (key)
15053     {
15054       char shortcut[MAX_OUTPUT_LINESIZE + 1];
15055
15056       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)
15057         sprintf(shortcut, " ('.' or '%c')", key);
15058       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)
15059         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
15060       else if (gi->custom_id == GADGET_ID_TEST)
15061         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
15062       else if (gi->custom_id == GADGET_ID_UNDO)
15063         sprintf(shortcut, " ('%c/Shift-U')", key);
15064       else if (gi->custom_id == GADGET_ID_ZOOM)
15065         sprintf(shortcut, " ('%c', '0', '-')", key);
15066       else
15067         sprintf(shortcut, " ('%s%c')",
15068                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
15069
15070       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
15071         strcat(infotext, shortcut);
15072     }
15073   }
15074
15075   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, INFOTEXT_FONT);
15076 }
15077
15078 void HandleEditorGadgetInfoText(void *ptr)
15079 {
15080   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
15081
15082   if (game_status != GAME_MODE_EDITOR)
15083     return;
15084
15085   ClearEditorGadgetInfoText();
15086
15087   if (gi == NULL || gi->event.type == GD_EVENT_INFO_LEAVING)
15088     return;
15089
15090   // misuse this function to delete brush cursor, if needed
15091   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
15092     DeleteBrushFromCursor();
15093
15094   PrintEditorGadgetInfoText(gi);
15095 }
15096
15097 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
15098 {
15099   int id = gi->custom_id;
15100   int type_id = gi->custom_type_id;
15101   int sx = gi->event.x;
15102   int sy = gi->event.y;
15103   int lx = sx + level_xpos;
15104   int ly = sy + level_ypos;
15105   int min_sx = 0, min_sy = 0;
15106   int max_sx = gi->drawing.area_xsize - 1;
15107   int max_sy = gi->drawing.area_ysize - 1;
15108   int actual_drawing_function = drawing_function;
15109   int max_infotext_len = getMaxInfoTextLength();
15110   char infotext[MAX_OUTPUT_LINESIZE + 1];
15111
15112   infotext[0] = '\0';           // start with empty info text
15113
15114   // pressed Control key: simulate picking element
15115   if (GetKeyModState() & KMOD_Control)
15116     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
15117
15118   ClearEditorGadgetInfoText();
15119
15120   if (gi->event.type == GD_EVENT_INFO_LEAVING)
15121     return;
15122
15123   // make sure to stay inside drawing area boundaries
15124   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
15125   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
15126
15127   if (id == GADGET_ID_DRAWING_LEVEL)
15128   {
15129     if (button_status)
15130     {
15131       int min_lx = 0, min_ly = 0;
15132       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
15133
15134       // get positions inside level field
15135       lx = sx + level_xpos;
15136       ly = sy + level_ypos;
15137
15138       // make sure to stay inside level field boundaries
15139       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
15140       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
15141
15142       // correct drawing area positions accordingly
15143       sx = lx - level_xpos;
15144       sy = ly - level_ypos;
15145     }
15146
15147     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
15148     {
15149       if (button_status)        // if (gi->state == GD_BUTTON_PRESSED)
15150       {
15151         static int start_lx = 0;
15152         static int start_ly = 0;
15153         char *text;
15154
15155         if (gi->event.type == GD_EVENT_PRESSED)
15156         {
15157           start_lx = lx;
15158           start_ly = ly;
15159         }
15160
15161         switch (actual_drawing_function)
15162         {
15163           case GADGET_ID_SINGLE_ITEMS:
15164             text = "Drawing single items";
15165             break;
15166           case GADGET_ID_CONNECTED_ITEMS:
15167             text = "Drawing connected items";
15168             break;
15169           case GADGET_ID_LINE:
15170             text = "Drawing line";
15171             break;
15172           case GADGET_ID_ARC:
15173             text = "Drawing arc";
15174             break;
15175           case GADGET_ID_TEXT:
15176             text = "Setting text cursor";
15177             break;
15178           case GADGET_ID_RECTANGLE:
15179             text = "Drawing rectangle";
15180             break;
15181           case GADGET_ID_FILLED_BOX:
15182             text = "Drawing filled box";
15183             break;
15184           case GADGET_ID_FLOOD_FILL:
15185             text = "Flood fill";
15186             break;
15187           case GADGET_ID_GRAB_BRUSH:
15188             text = "Grabbing brush";
15189             break;
15190           case GADGET_ID_PICK_ELEMENT:
15191             text = "Picking element";
15192             break;
15193
15194           default:
15195             text = "Drawing position";
15196             break;
15197         }
15198
15199         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
15200           sprintf(infotext, "%s: %d, %d", text, lx, ly);
15201         else
15202           sprintf(infotext, "%s: %d, %d", text,
15203                   ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
15204       }
15205       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
15206         strncpy(infotext, getElementInfoText(Tile[lx][ly]), max_infotext_len);
15207       else
15208         sprintf(infotext, "Level position: %d, %d", lx, ly);
15209     }
15210
15211     // misuse this function to draw brush cursor, if needed
15212     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
15213     {
15214       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
15215         CopyBrushToCursor(sx, sy);
15216       else
15217         DeleteBrushFromCursor();
15218     }
15219
15220     if (!draw_with_brush)
15221       UpdateBrushPosition(sx, sy);
15222   }
15223   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
15224   {
15225     int pos = sx * drawingarea_info[type_id].area_ysize + sy;
15226     int element = drawingarea_info[type_id].value[pos];
15227
15228     strncpy(infotext, getElementInfoText(element), max_infotext_len);
15229   }
15230   else
15231   {
15232     if (id == GADGET_ID_CUSTOM_CONTENT)
15233       sprintf(infotext, "custom element content position: %d, %d", sx, sy);
15234     else if (id == GADGET_ID_GROUP_CONTENT)
15235       sprintf(infotext, "group element position: %d", sx + 1);
15236     else if (id >= GADGET_ID_YAMYAM_CONTENT_0 &&
15237              id <= GADGET_ID_YAMYAM_CONTENT_7)
15238       sprintf(infotext, "content area %d position: %d, %d",
15239               id - GADGET_ID_YAMYAM_CONTENT_0 + 1, sx, sy);
15240     else if (id >= GADGET_ID_MAGIC_BALL_CONTENT_0 &&
15241              id <= GADGET_ID_MAGIC_BALL_CONTENT_7)
15242       sprintf(infotext, "content area %d position: %d, %d",
15243               id - GADGET_ID_MAGIC_BALL_CONTENT_0 + 1, sx, sy);
15244     else if (id == GADGET_ID_ANDROID_CONTENT)
15245       sprintf(infotext, "android element position: %d", sx + 1);
15246     else if (drawingarea_info[type_id].infotext != NULL)
15247       strcpy(infotext, drawingarea_info[type_id].infotext);
15248   }
15249
15250   infotext[max_infotext_len] = '\0';
15251
15252   if (strlen(infotext) > 0)
15253     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT, infotext);
15254 }
15255
15256 void RequestExitLevelEditor(boolean ask_if_level_has_changed,
15257                             boolean quick_quit)
15258 {
15259   if (!ask_if_level_has_changed ||
15260       !LevelChanged() ||
15261       Request("Level has changed! Exit without saving?",
15262               REQ_ASK | REQ_STAY_OPEN))
15263   {
15264     struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
15265     struct RectWithBorder *vp_door_2 = &viewport.door_2[GAME_MODE_MAIN];
15266
15267     // draw normal door
15268     UndrawSpecialEditorDoor();
15269
15270     // use door animation if door 1 viewport is unchanged and contains toolbox
15271     if (useEditorDoorAnimation())
15272       CloseDoor(DOOR_CLOSE_1 | DOOR_FORCE_ANIM);
15273
15274     // close editor doors if viewport definition is the same as in main menu
15275     if (vp_door_1->x      == DX     &&
15276         vp_door_1->y      == DY     &&
15277         vp_door_1->width  == DXSIZE &&
15278         vp_door_1->height == DYSIZE &&
15279         vp_door_2->x      == VX     &&
15280         vp_door_2->y      == VY     &&
15281         vp_door_2->width  == VXSIZE &&
15282         vp_door_2->height == VYSIZE)
15283       CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
15284     else
15285       SetDoorState(DOOR_CLOSE_2);
15286
15287     BackToFront();
15288
15289     if (quick_quit)
15290       FadeSkipNextFadeIn();
15291
15292     SetGameStatus(GAME_MODE_MAIN);
15293
15294     DrawMainMenu();
15295   }
15296   else
15297   {
15298     if (!global.use_envelope_request)
15299     {
15300       CloseDoor(DOOR_CLOSE_1);
15301       OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
15302     }
15303   }
15304 }