src/editor.c

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