src/editor.c

   1 // ============================================================================
   2 // Rocks'n'Diamonds - McDuffin Strikes Back!
   3 // ----------------------------------------------------------------------------
   4 // (c) 1995-2014 by Artsoft Entertainment
   5 //                  Holger Schemel
   6 //                  info@artsoft.org
   7 //                  https://www.artsoft.org/
   8 // ----------------------------------------------------------------------------
   9 // editor.c
  10 // ============================================================================
  11
  12 #include <math.h>
  13
  14 #include "libgame/libgame.h"
  15
  16 #include "editor.h"
  17 #include "screens.h"
  18 #include "tools.h"
  19 #include "files.h"
  20 #include "game.h"
  21 #include "init.h"
  22 #include "tape.h"
  23
  24
  25 #define INFOTEXT_UNKNOWN_ELEMENT        "unknown"
  26
  27
  28 // ----------------------------------------------------------------------------
  29 // screen and artwork graphic pixel position definitions
  30 // ----------------------------------------------------------------------------
  31
  32 // values for the control window
  33 #define ED_CTRL1_BUTTONS_HORIZ          4       // toolbox
  34 #define ED_CTRL1_BUTTONS_VERT           4
  35 #define ED_CTRL2_BUTTONS_HORIZ          3       // level
  36 #define ED_CTRL2_BUTTONS_VERT           2
  37 #define ED_CTRL3_BUTTONS_HORIZ          3       // CE and GE
  38 #define ED_CTRL3_BUTTONS_VERT           1
  39 #define ED_CTRL4_BUTTONS_HORIZ          2       // CE and GE
  40 #define ED_CTRL4_BUTTONS_VERT           1
  41 #define ED_CTRL5_BUTTONS_HORIZ          1       // properties
  42 #define ED_CTRL5_BUTTONS_VERT           1
  43 #define ED_CTRL6_BUTTONS_HORIZ          3       // properties
  44 #define ED_CTRL6_BUTTONS_VERT           1
  45 #define ED_CTRL7_BUTTONS_HORIZ          1       // palette
  46 #define ED_CTRL7_BUTTONS_VERT           1
  47
  48 #define ED_NUM_CTRL1_BUTTONS   (ED_CTRL1_BUTTONS_HORIZ * ED_CTRL1_BUTTONS_VERT)
  49 #define ED_NUM_CTRL2_BUTTONS   (ED_CTRL2_BUTTONS_HORIZ * ED_CTRL2_BUTTONS_VERT)
  50 #define ED_NUM_CTRL3_BUTTONS   (ED_CTRL3_BUTTONS_HORIZ * ED_CTRL3_BUTTONS_VERT)
  51 #define ED_NUM_CTRL4_BUTTONS   (ED_CTRL4_BUTTONS_HORIZ * ED_CTRL4_BUTTONS_VERT)
  52 #define ED_NUM_CTRL5_BUTTONS   (ED_CTRL5_BUTTONS_HORIZ * ED_CTRL5_BUTTONS_VERT)
  53 #define ED_NUM_CTRL6_BUTTONS   (ED_CTRL6_BUTTONS_HORIZ * ED_CTRL6_BUTTONS_VERT)
  54 #define ED_NUM_CTRL7_BUTTONS   (ED_CTRL7_BUTTONS_HORIZ * ED_CTRL7_BUTTONS_VERT)
  55 #define ED_NUM_CTRL1_2_BUTTONS (ED_NUM_CTRL1_BUTTONS   + ED_NUM_CTRL2_BUTTONS)
  56 #define ED_NUM_CTRL1_3_BUTTONS (ED_NUM_CTRL1_2_BUTTONS + ED_NUM_CTRL3_BUTTONS)
  57 #define ED_NUM_CTRL1_4_BUTTONS (ED_NUM_CTRL1_3_BUTTONS + ED_NUM_CTRL4_BUTTONS)
  58 #define ED_NUM_CTRL1_5_BUTTONS (ED_NUM_CTRL1_4_BUTTONS + ED_NUM_CTRL5_BUTTONS)
  59 #define ED_NUM_CTRL1_6_BUTTONS (ED_NUM_CTRL1_5_BUTTONS + ED_NUM_CTRL6_BUTTONS)
  60 #define ED_NUM_CTRL1_7_BUTTONS (ED_NUM_CTRL1_6_BUTTONS + ED_NUM_CTRL7_BUTTONS)
  61 #define ED_NUM_CTRL_BUTTONS    ED_NUM_CTRL1_7_BUTTONS
  62
  63 // values for the element list
  64 #define ED_ELEMENTLIST_XPOS             (editor.palette.x)
  65 #define ED_ELEMENTLIST_YPOS             (editor.palette.y)
  66 #define ED_ELEMENTLIST_XSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].width)
  67 #define ED_ELEMENTLIST_YSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].height)
  68 #define ED_ELEMENTLIST_COLS             MAX(1, editor.palette.cols)
  69 #define ED_ELEMENTLIST_ROWS             MAX(1, editor.palette.rows)
  70 #define ED_ELEMENTLIST_BUTTONS_HORIZ    (ED_ELEMENTLIST_COLS)
  71 #define ED_ELEMENTLIST_BUTTONS_VERT     (ED_ELEMENTLIST_ROWS)
  72 #define ED_NUM_ELEMENTLIST_BUTTONS      (ED_ELEMENTLIST_BUTTONS_HORIZ * \
  73                                          ED_ELEMENTLIST_BUTTONS_VERT)
  74
  75 // standard distances
  76 #define ED_GADGET_NORMAL_DISTANCE       (editor.gadget.normal_spacing)
  77 #define ED_GADGET_SMALL_DISTANCE        (editor.gadget.small_spacing)
  78 #define ED_GADGET_TINY_DISTANCE         (editor.gadget.tiny_spacing)
  79 #define ED_GADGET_LINE_DISTANCE         (editor.gadget.line_spacing)
  80 #define ED_GADGET_TEXT_DISTANCE         (editor.gadget.text_spacing)
  81 #define ED_TAB_BAR_HEIGHT               (editor.gadget.separator_line.height)
  82 #define ED_DRAWINGAREA_TEXT_DISTANCE    (ED_GADGET_TEXT_DISTANCE +      \
  83                                          ED_DRAWINGAREA_BORDER_SIZE)
  84 #define ED_GADGET_SPACE_DISTANCE        (getFontWidth(FONT_TEXT_1))
  85
  86 // values for drawingarea gadgets
  87 #define IMG_BORDER_1                    IMG_EDITOR_ELEMENT_BORDER
  88 #define IMG_BORDER_2                    IMG_EDITOR_ELEMENT_BORDER_INPUT
  89 #define ED_ELEMENT_BORDER               (graphic_info[IMG_BORDER_1].border_size)
  90 #define ED_DRAWINGAREA_BORDER_SIZE      (graphic_info[IMG_BORDER_2].border_size)
  91 #define ED_DRAWINGAREA_TILE_SIZE        (editor.drawingarea.tile_size)
  92
  93 // values for checkbutton gadgets
  94 #define ED_CHECKBUTTON_XSIZE         (graphic_info[IMG_EDITOR_CHECKBOX].width)
  95 #define ED_CHECKBUTTON_YSIZE         (graphic_info[IMG_EDITOR_CHECKBOX].height)
  96
  97 #define ED_TABBUTTON_XSIZE           (graphic_info[IMG_EDITOR_TABBUTTON].width)
  98 #define ED_TABBUTTON_YSIZE           (graphic_info[IMG_EDITOR_TABBUTTON].height)
  99
 100 #define ED_SETTINGS_LEVEL_TABS_X        (editor.settings.tabs.x)
 101 #define ED_SETTINGS_LEVEL_TABS_Y        (editor.settings.tabs.y)
 102 #define ED_SETTINGS_ELEMENT_TABS_X      (editor.settings.tabs.x)
 103 #define ED_SETTINGS_ELEMENT_TABS_Y      (editor.settings.tabs.y +       \
 104                                          editor.settings.tabs.yoffset2)
 105
 106 #define ED_SETTINGS_TABS_XOFFSET        (editor.settings.tabs.draw_xoffset)
 107 #define ED_SETTINGS_TABS_YOFFSET        (editor.settings.tabs.draw_yoffset)
 108
 109 #define ED_LEVEL_TABS_XSTART            (ED_SETTINGS_LEVEL_TABS_X)
 110 #define ED_LEVEL_TABS_YSTART            (ED_SETTINGS_LEVEL_TABS_Y)
 111 #define ED_LEVEL_SETTINGS_XSTART        (ED_SETTINGS_LEVEL_TABS_X +     \
 112                                          ED_SETTINGS_TABS_XOFFSET)
 113 #define ED_LEVEL_SETTINGS_YSTART        (ED_SETTINGS_LEVEL_TABS_Y +     \
 114                                          ED_TABBUTTON_YSIZE +           \
 115                                          ED_GADGET_TINY_DISTANCE +      \
 116                                          ED_TAB_BAR_HEIGHT +            \
 117                                          ED_SETTINGS_TABS_YOFFSET +     \
 118                                          getFontHeight(FONT_TEXT_1) +   \
 119                                          ED_GADGET_TEXT_DISTANCE)
 120 #define ED_ELEMENT_TABS_XSTART          (ED_SETTINGS_ELEMENT_TABS_X)
 121 #define ED_ELEMENT_TABS_YSTART          (ED_SETTINGS_ELEMENT_TABS_Y)
 122 #define ED_ELEMENT_SETTINGS_XSTART      (ED_SETTINGS_ELEMENT_TABS_X +   \
 123                                          ED_SETTINGS_TABS_XOFFSET)
 124 #define ED_ELEMENT_SETTINGS_YSTART      (ED_SETTINGS_ELEMENT_TABS_Y +   \
 125                                          ED_TABBUTTON_YSIZE +           \
 126                                          ED_GADGET_TINY_DISTANCE +      \
 127                                          ED_TAB_BAR_HEIGHT +            \
 128                                          ED_SETTINGS_TABS_YOFFSET)
 129
 130 #define ED_SETTINGS_XOFFSET             (ED_CHECKBUTTON_XSIZE +         \
 131                                          ED_GADGET_TEXT_DISTANCE)
 132 #define ED_SETTINGS_YOFFSET             (ED_CHECKBUTTON_YSIZE +         \
 133                                          ED_GADGET_LINE_DISTANCE)
 134
 135 #define ED_POS_RANGE                    (10000)
 136 #define ED_POS_LEVEL_TABS_FIRST         (1 * ED_POS_RANGE)
 137 #define ED_POS_LEVEL_TABS_LAST          (2 * ED_POS_RANGE - 1)
 138 #define ED_POS_LEVEL_SETTINGS_FIRST     (2 * ED_POS_RANGE)
 139 #define ED_POS_LEVEL_SETTINGS_LAST      (3 * ED_POS_RANGE - 1)
 140 #define ED_POS_ELEMENT_TABS_FIRST       (3 * ED_POS_RANGE)
 141 #define ED_POS_ELEMENT_TABS_LAST        (4 * ED_POS_RANGE - 1)
 142 #define ED_POS_ELEMENT_SETTINGS_FIRST   (4 * ED_POS_RANGE)
 143 #define ED_POS_ELEMENT_SETTINGS_LAST    (5 * ED_POS_RANGE - 1)
 144
 145 #define ED_LEVEL_TABS_XPOS(n)           (ED_POS_LEVEL_TABS_FIRST + (n))
 146 #define ED_LEVEL_TABS_YPOS(n)           (ED_POS_LEVEL_TABS_FIRST + (n))
 147
 148 #define ED_LEVEL_SETTINGS_XPOS(n)       (ED_POS_LEVEL_SETTINGS_FIRST + (n))
 149 #define ED_LEVEL_SETTINGS_YPOS(n)       (ED_POS_LEVEL_SETTINGS_FIRST + (n))
 150
 151 #define ED_ELEMENT_TABS_XPOS(n)         (ED_POS_ELEMENT_TABS_FIRST + (n))
 152 #define ED_ELEMENT_TABS_YPOS(n)         (ED_POS_ELEMENT_TABS_FIRST + (n))
 153
 154 #define ED_ELEMENT_SETTINGS_XPOS(n)     (ED_POS_ELEMENT_SETTINGS_FIRST + (n))
 155 #define ED_ELEMENT_SETTINGS_YPOS(n)     (ED_POS_ELEMENT_SETTINGS_FIRST + (n))
 156
 157 #define IS_POS_LEVEL_TABS(n)          ((n) >= ED_POS_LEVEL_TABS_FIRST && \
 158                                        (n) <= ED_POS_LEVEL_TABS_LAST)
 159 #define IS_POS_LEVEL_SETTINGS(n)      ((n) >= ED_POS_LEVEL_SETTINGS_FIRST && \
 160                                        (n) <= ED_POS_LEVEL_SETTINGS_LAST)
 161 #define IS_POS_ELEMENT_TABS(n)        ((n) >= ED_POS_ELEMENT_TABS_FIRST && \
 162                                        (n) <= ED_POS_ELEMENT_TABS_LAST)
 163 #define IS_POS_ELEMENT_SETTINGS(n)    ((n) >= ED_POS_ELEMENT_SETTINGS_FIRST && \
 164                                        (n) <= ED_POS_ELEMENT_SETTINGS_LAST)
 165
 166 #define ED_LEVEL_TABS_LINE(n)           ((n) - ED_POS_LEVEL_TABS_FIRST)
 167 #define ED_LEVEL_SETTINGS_LINE(n)       ((n) - ED_POS_LEVEL_SETTINGS_FIRST)
 168 #define ED_ELEMENT_TABS_LINE(n)         ((n) - ED_POS_ELEMENT_TABS_FIRST)
 169 #define ED_ELEMENT_SETTINGS_LINE(n)     ((n) - ED_POS_ELEMENT_SETTINGS_FIRST)
 170
 171 #define ED_LEVEL_TABS_X(n)              (ED_LEVEL_TABS_XSTART + \
 172                                          (n) * ED_SETTINGS_TABS_XOFFSET)
 173 #define ED_LEVEL_TABS_Y(n)              (ED_LEVEL_TABS_YSTART + \
 174                                          (n) * ED_SETTINGS_TABS_YOFFSET)
 175
 176 #define ED_LEVEL_SETTINGS_X(n)          (ED_LEVEL_SETTINGS_XSTART +     \
 177                                          (n) * ED_SETTINGS_XOFFSET)
 178 #define ED_LEVEL_SETTINGS_Y(n)          (ED_LEVEL_SETTINGS_YSTART +     \
 179                                          (n) * ED_SETTINGS_YOFFSET)
 180
 181 #define ED_ELEMENT_TABS_X(n)            (ED_ELEMENT_TABS_XSTART +       \
 182                                          (n) * ED_SETTINGS_TABS_XOFFSET)
 183 #define ED_ELEMENT_TABS_Y(n)            (ED_ELEMENT_TABS_YSTART +       \
 184                                          (n) * ED_SETTINGS_TABS_YOFFSET)
 185
 186 #define ED_ELEMENT_SETTINGS_X(n)        (ED_ELEMENT_SETTINGS_XSTART +   \
 187                                          (n) * ED_SETTINGS_XOFFSET)
 188 #define ED_ELEMENT_SETTINGS_Y(n)        (ED_ELEMENT_SETTINGS_YSTART +   \
 189                                          (n) * ED_SETTINGS_YOFFSET)
 190
 191 #define ED_POS_TO_LEVEL_TABS_X(n)       \
 192   (ED_LEVEL_TABS_X(ED_LEVEL_TABS_LINE(n)))
 193 #define ED_POS_TO_LEVEL_TABS_Y(n)       \
 194   (ED_LEVEL_TABS_Y(ED_LEVEL_TABS_LINE(n)))
 195
 196 #define ED_POS_TO_LEVEL_SETTINGS_X(n)   \
 197   (ED_LEVEL_SETTINGS_X(ED_LEVEL_SETTINGS_LINE(n)))
 198 #define ED_POS_TO_LEVEL_SETTINGS_Y(n)   \
 199   (ED_LEVEL_SETTINGS_Y(ED_LEVEL_SETTINGS_LINE(n)))
 200
 201 #define ED_POS_TO_ELEMENT_TABS_X(n)     \
 202   (ED_ELEMENT_TABS_X(ED_ELEMENT_TABS_LINE(n)))
 203 #define ED_POS_TO_ELEMENT_TABS_Y(n)     \
 204   (ED_ELEMENT_TABS_Y(ED_ELEMENT_TABS_LINE(n)))
 205
 206 #define ED_POS_TO_ELEMENT_SETTINGS_X(n) \
 207   (ED_ELEMENT_SETTINGS_X(ED_ELEMENT_SETTINGS_LINE(n)))
 208 #define ED_POS_TO_ELEMENT_SETTINGS_Y(n) \
 209   (ED_ELEMENT_SETTINGS_Y(ED_ELEMENT_SETTINGS_LINE(n)))
 210
 211 #define ED_SETTINGS_X(n)                (IS_POS_LEVEL_TABS(n) ? \
 212                                          ED_POS_TO_LEVEL_TABS_X(n) : \
 213                                          IS_POS_LEVEL_SETTINGS(n) ?     \
 214                                          ED_POS_TO_LEVEL_SETTINGS_X(n) : \
 215                                          IS_POS_ELEMENT_TABS(n) ?       \
 216                                          ED_POS_TO_ELEMENT_TABS_X(n) : \
 217                                          IS_POS_ELEMENT_SETTINGS(n) ?   \
 218                                          ED_POS_TO_ELEMENT_SETTINGS_X(n) : (n))
 219 #define ED_SETTINGS_Y(n)                (IS_POS_LEVEL_TABS(n) ? \
 220                                          ED_POS_TO_LEVEL_TABS_Y(n) : \
 221                                          IS_POS_LEVEL_SETTINGS(n) ?     \
 222                                          ED_POS_TO_LEVEL_SETTINGS_Y(n) : \
 223                                          IS_POS_ELEMENT_TABS(n) ?       \
 224                                          ED_POS_TO_ELEMENT_TABS_Y(n) : \
 225                                          IS_POS_ELEMENT_SETTINGS(n) ?   \
 226                                          ED_POS_TO_ELEMENT_SETTINGS_Y(n) : (n))
 227
 228 #define ED_SETTINGS_XOFF(n)             (5 * ((n) % 4) *                \
 229                                          ED_DRAWINGAREA_TILE_SIZE)
 230 #define ED_SETTINGS_YOFF(n)             (5 * ((n) / 4) *                \
 231                                          ED_DRAWINGAREA_TILE_SIZE)
 232
 233 #define ED_AREA_XOFFSET_1(n)            ((n) != 0 ?                     \
 234                                          ED_DRAWINGAREA_BORDER_SIZE : 0)
 235 #define ED_AREA_YOFFSET_1(n)            ((n) != 0 ?                     \
 236                                          (ED_CHECKBUTTON_YSIZE -        \
 237                                           ED_DRAWINGAREA_TILE_SIZE) / 2 : 0)
 238
 239 #define ED_AREA_XOFFSET_2(n)      (0)
 240 #define ED_AREA_YOFFSET_2(n)      ((n) == 3 ?                   \
 241                                    ((n) - 1) * ED_DRAWINGAREA_TILE_SIZE / 2 : 0)
 242
 243 #define ED_AREA_SETTINGS_X(i)      (ED_SETTINGS_X((i).x) +              \
 244                                     ED_SETTINGS_XOFF((i).xoffset) +     \
 245                                     ED_AREA_XOFFSET_1((i).x) -          \
 246                                     ED_AREA_XOFFSET_2((i).area_xsize))
 247 #define ED_AREA_SETTINGS_Y(i)      (ED_SETTINGS_Y((i).y) +              \
 248                                     ED_SETTINGS_YOFF((i).yoffset) +     \
 249                                     ED_AREA_YOFFSET_1((i).y) -          \
 250                                     ED_AREA_YOFFSET_2((i).area_ysize))
 251
 252 // values for element content drawing areas
 253 #define ED_AREA_1X1_LSETTINGS_XPOS(n)   ED_LEVEL_SETTINGS_XPOS(n)
 254 #define ED_AREA_1X1_LSETTINGS_YPOS(n)   ED_LEVEL_SETTINGS_YPOS(n)
 255 #define ED_AREA_1X1_LSETTINGS_XOFF      (0)
 256 #define ED_AREA_1X1_LSETTINGS_YOFF      (0)
 257
 258 #define ED_AREA_1X1_SETTINGS_XPOS(n)    ED_ELEMENT_SETTINGS_XPOS(n)
 259 #define ED_AREA_1X1_SETTINGS_YPOS(n)    ED_ELEMENT_SETTINGS_YPOS(n)
 260 #define ED_AREA_1X1_SETTINGS_XOFF       (0)
 261 #define ED_AREA_1X1_SETTINGS_YOFF       (0)
 262
 263 #define ED_AREA_3X3_SETTINGS_XPOS(n)    ED_ELEMENT_SETTINGS_XPOS(n)
 264 #define ED_AREA_3X3_SETTINGS_YPOS(n)    ED_ELEMENT_SETTINGS_YPOS(n)
 265 #define ED_AREA_3X3_SETTINGS_XOFF       (0)
 266 #define ED_AREA_3X3_SETTINGS_YOFF       (0)
 267
 268 // element content
 269 #define ED_AREA_ELEMENT_CONTENT_XOFF(n) (n)
 270 #define ED_AREA_ELEMENT_CONTENT_YOFF(n) (n)
 271
 272 // yamyam content
 273 #define ED_XPOS_YAM                     0
 274 #define ED_YPOS_YAM                     5
 275 #define ED_AREA_YAMYAM_CONTENT_XPOS     ED_ELEMENT_SETTINGS_XPOS(ED_XPOS_YAM)
 276 #define ED_AREA_YAMYAM_CONTENT_YPOS     ED_ELEMENT_SETTINGS_YPOS(ED_YPOS_YAM)
 277 #define ED_AREA_YAMYAM_CONTENT_XOFF(n)  ED_AREA_ELEMENT_CONTENT_XOFF(n)
 278 #define ED_AREA_YAMYAM_CONTENT_YOFF(n)  ED_AREA_ELEMENT_CONTENT_YOFF(n)
 279 #define ED_AREA_YAMYAM_CONTENT_X(n)     (ED_ELEMENT_SETTINGS_X(ED_XPOS_YAM) + \
 280                                          ED_SETTINGS_XOFF(n))
 281 #define ED_AREA_YAMYAM_CONTENT_Y(n)     (ED_ELEMENT_SETTINGS_Y(ED_YPOS_YAM) + \
 282                                          ED_SETTINGS_YOFF(n) +          \
 283                                          ED_AREA_YOFFSET_1(ED_YPOS_YAM) - \
 284                                          ED_AREA_YOFFSET_2(3))
 285
 286 // magic ball content
 287 #define ED_XPOS_BALL                    0
 288 #define ED_YPOS_BALL                    6
 289 #define ED_AREA_MAGIC_BALL_CONTENT_XPOS ED_ELEMENT_SETTINGS_XPOS(ED_XPOS_BALL)
 290 #define ED_AREA_MAGIC_BALL_CONTENT_YPOS ED_ELEMENT_SETTINGS_YPOS(ED_YPOS_BALL)
 291 #define ED_AREA_MAGIC_BALL_CONTENT_XOFF(n) ED_AREA_ELEMENT_CONTENT_XOFF(n)
 292 #define ED_AREA_MAGIC_BALL_CONTENT_YOFF(n) ED_AREA_ELEMENT_CONTENT_YOFF(n)
 293 #define ED_AREA_MAGIC_BALL_CONTENT_X(n) (ED_ELEMENT_SETTINGS_X(ED_XPOS_BALL) + \
 294                                          ED_SETTINGS_XOFF(n))
 295 #define ED_AREA_MAGIC_BALL_CONTENT_Y(n) (ED_ELEMENT_SETTINGS_Y(ED_YPOS_BALL) + \
 296                                          ED_SETTINGS_YOFF(n) +          \
 297                                          ED_AREA_YOFFSET_1(ED_YPOS_BALL) - \
 298                                          ED_AREA_YOFFSET_2(3))
 299
 300 // values for scrolling gadgets for drawing area
 301 #define ED_SCROLLBUTTON_XSIZE           (graphic_info[IMG_EDITOR_PLAYFIELD_SCROLLBAR].width)
 302 #define ED_SCROLLBUTTON_YSIZE           (graphic_info[IMG_EDITOR_PLAYFIELD_SCROLLBAR].height)
 303
 304 #define ED_SCROLL_UP_XPOS               (SXSIZE - ED_SCROLLBUTTON_XSIZE)
 305 #define ED_SCROLL_UP_YPOS               (0)
 306 #define ED_SCROLL_DOWN_XPOS             ED_SCROLL_UP_XPOS
 307 #define ED_SCROLL_DOWN_YPOS             (SYSIZE - 3 * ED_SCROLLBUTTON_YSIZE)
 308 #define ED_SCROLL_LEFT_XPOS             (0)
 309 #define ED_SCROLL_LEFT_YPOS             (SYSIZE - 2 * ED_SCROLLBUTTON_YSIZE)
 310 #define ED_SCROLL_RIGHT_XPOS            (SXSIZE - 2 * ED_SCROLLBUTTON_XSIZE)
 311 #define ED_SCROLL_RIGHT_YPOS            ED_SCROLL_LEFT_YPOS
 312 #define ED_SCROLL_HORIZONTAL_XPOS       (ED_SCROLL_LEFT_XPOS +          \
 313                                          ED_SCROLLBUTTON_XSIZE)
 314 #define ED_SCROLL_HORIZONTAL_YPOS       ED_SCROLL_LEFT_YPOS
 315 #define ED_SCROLL_HORIZONTAL_XSIZE      (SXSIZE - 3 * ED_SCROLLBUTTON_XSIZE)
 316 #define ED_SCROLL_HORIZONTAL_YSIZE      ED_SCROLLBUTTON_YSIZE
 317 #define ED_SCROLL_VERTICAL_XPOS         ED_SCROLL_UP_XPOS
 318 #define ED_SCROLL_VERTICAL_YPOS         (ED_SCROLL_UP_YPOS +            \
 319                                          ED_SCROLLBUTTON_YSIZE)
 320 #define ED_SCROLL_VERTICAL_XSIZE        ED_SCROLLBUTTON_XSIZE
 321 #define ED_SCROLL_VERTICAL_YSIZE        (SYSIZE - 4 * ED_SCROLLBUTTON_YSIZE)
 322
 323 // values for scrolling gadgets for element list
 324 #define ED_SCROLLBUTTON2_XSIZE          (graphic_info[IMG_EDITOR_PALETTE_SCROLL_UP].width)
 325 #define ED_SCROLLBUTTON2_YSIZE          (graphic_info[IMG_EDITOR_PALETTE_SCROLL_UP].height)
 326
 327 #define ED_SCROLL2_UP_XPOS              (ED_ELEMENTLIST_XPOS +          \
 328                                          ED_ELEMENTLIST_BUTTONS_HORIZ * \
 329                                          ED_ELEMENTLIST_XSIZE)
 330 #define ED_SCROLL2_UP_YPOS              ED_ELEMENTLIST_YPOS
 331 #define ED_SCROLL2_DOWN_XPOS            ED_SCROLL2_UP_XPOS
 332 #define ED_SCROLL2_DOWN_YPOS            (ED_SCROLL2_UP_YPOS +           \
 333                                          ED_ELEMENTLIST_BUTTONS_VERT *  \
 334                                          ED_ELEMENTLIST_YSIZE -         \
 335                                          ED_SCROLLBUTTON2_YSIZE)
 336 #define ED_SCROLL2_VERTICAL_XPOS        ED_SCROLL2_UP_XPOS
 337 #define ED_SCROLL2_VERTICAL_YPOS        (ED_SCROLL2_UP_YPOS +           \
 338                                          ED_SCROLLBUTTON2_YSIZE)
 339 #define ED_SCROLL2_VERTICAL_XSIZE       ED_SCROLLBUTTON2_XSIZE
 340 #define ED_SCROLL2_VERTICAL_YSIZE       (ED_ELEMENTLIST_BUTTONS_VERT *  \
 341                                          ED_ELEMENTLIST_YSIZE -         \
 342                                          2 * ED_SCROLLBUTTON2_YSIZE)
 343
 344 // values for ClearEditorGadgetInfoText() and HandleEditorGadgetInfoText()
 345 #define INFOTEXT_FONT           FONT_TEXT_2
 346 #define INFOTEXT_XSIZE          SXSIZE
 347 #define INFOTEXT_YSIZE          getFontHeight(INFOTEXT_FONT)
 348 #define INFOTEXT_YSIZE_FULL     (INFOTEXT_YSIZE + ED_GADGET_SMALL_DISTANCE)
 349 #define INFOTEXT_X              (editor.settings.tooltip.x)
 350 #define INFOTEXT_Y              (editor.settings.tooltip.y)
 351 #define INFOTEXT_XY_REDEFINED   (INFOTEXT_X != -1 || INFOTEXT_Y != -1)
 352 #define INFOTEXT_XPOS           SX + (INFOTEXT_XY_REDEFINED ? INFOTEXT_X : 0)
 353 #define INFOTEXT_YPOS           SY + (INFOTEXT_XY_REDEFINED ? INFOTEXT_Y : \
 354                                       SYSIZE - INFOTEXT_YSIZE)
 355
 356
 357 // ----------------------------------------------------------------------------
 358 // editor gadget definitions
 359 // ----------------------------------------------------------------------------
 360
 361 enum
 362 {
 363   GADGET_ID_NONE = -1,
 364
 365   // drawing toolbox buttons
 366
 367   GADGET_ID_SINGLE_ITEMS,
 368   GADGET_ID_CONNECTED_ITEMS,
 369   GADGET_ID_LINE,
 370   GADGET_ID_ARC,
 371   GADGET_ID_RECTANGLE,
 372   GADGET_ID_FILLED_BOX,
 373   GADGET_ID_WRAP_UP,
 374   GADGET_ID_TEXT,
 375   GADGET_ID_FLOOD_FILL,
 376   GADGET_ID_WRAP_LEFT,
 377   GADGET_ID_ZOOM,
 378   GADGET_ID_WRAP_RIGHT,
 379   GADGET_ID_RANDOM_PLACEMENT,
 380   GADGET_ID_GRAB_BRUSH,
 381   GADGET_ID_WRAP_DOWN,
 382   GADGET_ID_PICK_ELEMENT,
 383
 384   GADGET_ID_UNDO,
 385   GADGET_ID_INFO,
 386   GADGET_ID_SAVE,
 387   GADGET_ID_CLEAR,
 388   GADGET_ID_TEST,
 389   GADGET_ID_EXIT,
 390
 391   GADGET_ID_CUSTOM_COPY_FROM,
 392   GADGET_ID_CUSTOM_COPY_TO,
 393   GADGET_ID_CUSTOM_EXCHANGE,
 394   GADGET_ID_CUSTOM_COPY,
 395   GADGET_ID_CUSTOM_PASTE,
 396
 397   GADGET_ID_PROPERTIES,
 398   GADGET_ID_ELEMENT_LEFT,
 399   GADGET_ID_ELEMENT_MIDDLE,
 400   GADGET_ID_ELEMENT_RIGHT,
 401   GADGET_ID_PALETTE,
 402
 403   // counter gadget identifiers
 404
 405   GADGET_ID_SELECT_LEVEL_DOWN,
 406   GADGET_ID_SELECT_LEVEL_TEXT,
 407   GADGET_ID_SELECT_LEVEL_UP,
 408   GADGET_ID_LEVEL_XSIZE_DOWN,
 409   GADGET_ID_LEVEL_XSIZE_TEXT,
 410   GADGET_ID_LEVEL_XSIZE_UP,
 411   GADGET_ID_LEVEL_YSIZE_DOWN,
 412   GADGET_ID_LEVEL_YSIZE_TEXT,
 413   GADGET_ID_LEVEL_YSIZE_UP,
 414   GADGET_ID_LEVEL_RANDOM_DOWN,
 415   GADGET_ID_LEVEL_RANDOM_TEXT,
 416   GADGET_ID_LEVEL_RANDOM_UP,
 417   GADGET_ID_LEVEL_GEMSLIMIT_DOWN,
 418   GADGET_ID_LEVEL_GEMSLIMIT_TEXT,
 419   GADGET_ID_LEVEL_GEMSLIMIT_UP,
 420   GADGET_ID_LEVEL_TIMELIMIT_DOWN,
 421   GADGET_ID_LEVEL_TIMELIMIT_TEXT,
 422   GADGET_ID_LEVEL_TIMELIMIT_UP,
 423   GADGET_ID_LEVEL_TIMESCORE_DOWN,
 424   GADGET_ID_LEVEL_TIMESCORE_TEXT,
 425   GADGET_ID_LEVEL_TIMESCORE_UP,
 426   GADGET_ID_LEVEL_RANDOM_SEED_DOWN,
 427   GADGET_ID_LEVEL_RANDOM_SEED_TEXT,
 428   GADGET_ID_LEVEL_RANDOM_SEED_UP,
 429   GADGET_ID_LEVELSET_NUM_LEVELS_DOWN,
 430   GADGET_ID_LEVELSET_NUM_LEVELS_TEXT,
 431   GADGET_ID_LEVELSET_NUM_LEVELS_UP,
 432   GADGET_ID_ELEMENT_VALUE1_DOWN,
 433   GADGET_ID_ELEMENT_VALUE1_TEXT,
 434   GADGET_ID_ELEMENT_VALUE1_UP,
 435   GADGET_ID_ELEMENT_VALUE2_DOWN,
 436   GADGET_ID_ELEMENT_VALUE2_TEXT,
 437   GADGET_ID_ELEMENT_VALUE2_UP,
 438   GADGET_ID_ELEMENT_VALUE3_DOWN,
 439   GADGET_ID_ELEMENT_VALUE3_TEXT,
 440   GADGET_ID_ELEMENT_VALUE3_UP,
 441   GADGET_ID_ELEMENT_VALUE4_DOWN,
 442   GADGET_ID_ELEMENT_VALUE4_TEXT,
 443   GADGET_ID_ELEMENT_VALUE4_UP,
 444   GADGET_ID_YAMYAM_CONTENT_DOWN,
 445   GADGET_ID_YAMYAM_CONTENT_TEXT,
 446   GADGET_ID_YAMYAM_CONTENT_UP,
 447   GADGET_ID_BALL_CONTENT_DOWN,
 448   GADGET_ID_BALL_CONTENT_TEXT,
 449   GADGET_ID_BALL_CONTENT_UP,
 450   GADGET_ID_ANDROID_CONTENT_DOWN,
 451   GADGET_ID_ANDROID_CONTENT_TEXT,
 452   GADGET_ID_ANDROID_CONTENT_UP,
 453   GADGET_ID_ENVELOPE_XSIZE_DOWN,
 454   GADGET_ID_ENVELOPE_XSIZE_TEXT,
 455   GADGET_ID_ENVELOPE_XSIZE_UP,
 456   GADGET_ID_ENVELOPE_YSIZE_DOWN,
 457   GADGET_ID_ENVELOPE_YSIZE_TEXT,
 458   GADGET_ID_ENVELOPE_YSIZE_UP,
 459   GADGET_ID_INVENTORY_SIZE_DOWN,
 460   GADGET_ID_INVENTORY_SIZE_TEXT,
 461   GADGET_ID_INVENTORY_SIZE_UP,
 462   GADGET_ID_MM_BALL_CONTENT_DOWN,
 463   GADGET_ID_MM_BALL_CONTENT_TEXT,
 464   GADGET_ID_MM_BALL_CONTENT_UP,
 465   GADGET_ID_CUSTOM_SCORE_DOWN,
 466   GADGET_ID_CUSTOM_SCORE_TEXT,
 467   GADGET_ID_CUSTOM_SCORE_UP,
 468   GADGET_ID_CUSTOM_GEMCOUNT_DOWN,
 469   GADGET_ID_CUSTOM_GEMCOUNT_TEXT,
 470   GADGET_ID_CUSTOM_GEMCOUNT_UP,
 471   GADGET_ID_CUSTOM_VALUE_FIX_DOWN,
 472   GADGET_ID_CUSTOM_VALUE_FIX_TEXT,
 473   GADGET_ID_CUSTOM_VALUE_FIX_UP,
 474   GADGET_ID_CUSTOM_VALUE_RND_DOWN,
 475   GADGET_ID_CUSTOM_VALUE_RND_TEXT,
 476   GADGET_ID_CUSTOM_VALUE_RND_UP,
 477   GADGET_ID_PUSH_DELAY_FIX_DOWN,
 478   GADGET_ID_PUSH_DELAY_FIX_TEXT,
 479   GADGET_ID_PUSH_DELAY_FIX_UP,
 480   GADGET_ID_PUSH_DELAY_RND_DOWN,
 481   GADGET_ID_PUSH_DELAY_RND_TEXT,
 482   GADGET_ID_PUSH_DELAY_RND_UP,
 483   GADGET_ID_DROP_DELAY_FIX_DOWN,
 484   GADGET_ID_DROP_DELAY_FIX_TEXT,
 485   GADGET_ID_DROP_DELAY_FIX_UP,
 486   GADGET_ID_DROP_DELAY_RND_DOWN,
 487   GADGET_ID_DROP_DELAY_RND_TEXT,
 488   GADGET_ID_DROP_DELAY_RND_UP,
 489   GADGET_ID_MOVE_DELAY_FIX_DOWN,
 490   GADGET_ID_MOVE_DELAY_FIX_TEXT,
 491   GADGET_ID_MOVE_DELAY_FIX_UP,
 492   GADGET_ID_MOVE_DELAY_RND_DOWN,
 493   GADGET_ID_MOVE_DELAY_RND_TEXT,
 494   GADGET_ID_MOVE_DELAY_RND_UP,
 495   GADGET_ID_STEP_DELAY_FIX_DOWN,
 496   GADGET_ID_STEP_DELAY_FIX_TEXT,
 497   GADGET_ID_STEP_DELAY_FIX_UP,
 498   GADGET_ID_STEP_DELAY_RND_DOWN,
 499   GADGET_ID_STEP_DELAY_RND_TEXT,
 500   GADGET_ID_STEP_DELAY_RND_UP,
 501   GADGET_ID_EXPLOSION_DELAY_DOWN,
 502   GADGET_ID_EXPLOSION_DELAY_TEXT,
 503   GADGET_ID_EXPLOSION_DELAY_UP,
 504   GADGET_ID_IGNITION_DELAY_DOWN,
 505   GADGET_ID_IGNITION_DELAY_TEXT,
 506   GADGET_ID_IGNITION_DELAY_UP,
 507   GADGET_ID_CHANGE_DELAY_FIX_DOWN,
 508   GADGET_ID_CHANGE_DELAY_FIX_TEXT,
 509   GADGET_ID_CHANGE_DELAY_FIX_UP,
 510   GADGET_ID_CHANGE_DELAY_RND_DOWN,
 511   GADGET_ID_CHANGE_DELAY_RND_TEXT,
 512   GADGET_ID_CHANGE_DELAY_RND_UP,
 513   GADGET_ID_CHANGE_CONT_RND_DOWN,
 514   GADGET_ID_CHANGE_CONT_RND_TEXT,
 515   GADGET_ID_CHANGE_CONT_RND_UP,
 516   GADGET_ID_GROUP_CONTENT_DOWN,
 517   GADGET_ID_GROUP_CONTENT_TEXT,
 518   GADGET_ID_GROUP_CONTENT_UP,
 519
 520   // drawing area identifiers
 521
 522   GADGET_ID_DRAWING_LEVEL,
 523   GADGET_ID_YAMYAM_CONTENT_0,
 524   GADGET_ID_YAMYAM_CONTENT_1,
 525   GADGET_ID_YAMYAM_CONTENT_2,
 526   GADGET_ID_YAMYAM_CONTENT_3,
 527   GADGET_ID_YAMYAM_CONTENT_4,
 528   GADGET_ID_YAMYAM_CONTENT_5,
 529   GADGET_ID_YAMYAM_CONTENT_6,
 530   GADGET_ID_YAMYAM_CONTENT_7,
 531   GADGET_ID_MAGIC_BALL_CONTENT_0,
 532   GADGET_ID_MAGIC_BALL_CONTENT_1,
 533   GADGET_ID_MAGIC_BALL_CONTENT_2,
 534   GADGET_ID_MAGIC_BALL_CONTENT_3,
 535   GADGET_ID_MAGIC_BALL_CONTENT_4,
 536   GADGET_ID_MAGIC_BALL_CONTENT_5,
 537   GADGET_ID_MAGIC_BALL_CONTENT_6,
 538   GADGET_ID_MAGIC_BALL_CONTENT_7,
 539   GADGET_ID_ANDROID_CONTENT,
 540   GADGET_ID_AMOEBA_CONTENT,
 541   GADGET_ID_START_ELEMENT,
 542   GADGET_ID_ARTWORK_ELEMENT,
 543   GADGET_ID_EXPLOSION_ELEMENT,
 544   GADGET_ID_INVENTORY_CONTENT,
 545   GADGET_ID_MM_BALL_CONTENT,
 546   GADGET_ID_CUSTOM_GRAPHIC,
 547   GADGET_ID_CUSTOM_CONTENT,
 548   GADGET_ID_CUSTOM_MOVE_ENTER,
 549   GADGET_ID_CUSTOM_MOVE_LEAVE,
 550   GADGET_ID_CUSTOM_CHANGE_TARGET,
 551   GADGET_ID_CUSTOM_CHANGE_CONTENT,
 552   GADGET_ID_CUSTOM_CHANGE_TRIGGER,
 553   GADGET_ID_CUSTOM_CHANGE_ACTION,
 554   GADGET_ID_GROUP_CONTENT,
 555   GADGET_ID_RANDOM_BACKGROUND,
 556
 557   // text input identifiers
 558
 559   GADGET_ID_LEVEL_NAME,
 560   GADGET_ID_LEVEL_AUTHOR,
 561   GADGET_ID_LEVELSET_NAME,
 562   GADGET_ID_LEVELSET_AUTHOR,
 563   GADGET_ID_ELEMENT_NAME,
 564
 565   // text area identifiers
 566
 567   GADGET_ID_ENVELOPE_INFO,
 568
 569   // selectbox identifiers
 570
 571   GADGET_ID_TIME_OR_STEPS,
 572   GADGET_ID_TIME_SCORE_BASE,
 573   GADGET_ID_GAME_ENGINE_TYPE,
 574   GADGET_ID_LEVELSET_SAVE_MODE,
 575   GADGET_ID_WIND_DIRECTION,
 576   GADGET_ID_PLAYER_SPEED,
 577   GADGET_ID_MM_BALL_CHOICE_MODE,
 578   GADGET_ID_CUSTOM_WALK_TO_ACTION,
 579   GADGET_ID_CUSTOM_EXPLOSION_TYPE,
 580   GADGET_ID_CUSTOM_DEADLINESS,
 581   GADGET_ID_CUSTOM_MOVE_PATTERN,
 582   GADGET_ID_CUSTOM_MOVE_DIRECTION,
 583   GADGET_ID_CUSTOM_MOVE_STEPSIZE,
 584   GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
 585   GADGET_ID_CUSTOM_SMASH_TARGETS,
 586   GADGET_ID_CUSTOM_SLIPPERY_TYPE,
 587   GADGET_ID_CUSTOM_ACCESS_TYPE,
 588   GADGET_ID_CUSTOM_ACCESS_LAYER,
 589   GADGET_ID_CUSTOM_ACCESS_PROTECTED,
 590   GADGET_ID_CUSTOM_ACCESS_DIRECTION,
 591   GADGET_ID_CHANGE_TIME_UNITS,
 592   GADGET_ID_CHANGE_DIRECT_ACTION,
 593   GADGET_ID_CHANGE_OTHER_ACTION,
 594   GADGET_ID_CHANGE_SIDE,
 595   GADGET_ID_CHANGE_PLAYER,
 596   GADGET_ID_CHANGE_PAGE,
 597   GADGET_ID_CHANGE_REPLACE_WHEN,
 598   GADGET_ID_ACTION_TYPE,
 599   GADGET_ID_ACTION_MODE,
 600   GADGET_ID_ACTION_ARG,
 601   GADGET_ID_SELECT_CHANGE_PAGE,
 602   GADGET_ID_GROUP_CHOICE_MODE,
 603
 604   // textbutton identifiers
 605
 606   GADGET_ID_LEVELINFO_LEVEL,
 607   GADGET_ID_LEVELINFO_LEVELSET,
 608   GADGET_ID_LEVELINFO_EDITOR,
 609   GADGET_ID_PROPERTIES_INFO,
 610   GADGET_ID_PROPERTIES_CONFIG,
 611   GADGET_ID_PROPERTIES_CONFIG_1,
 612   GADGET_ID_PROPERTIES_CONFIG_2,
 613   GADGET_ID_PROPERTIES_CHANGE,
 614   GADGET_ID_SAVE_AS_TEMPLATE_1,
 615   GADGET_ID_SAVE_AS_TEMPLATE_2,
 616   GADGET_ID_SAVE_LEVELSET,
 617   GADGET_ID_ADD_CHANGE_PAGE,
 618   GADGET_ID_DEL_CHANGE_PAGE,
 619
 620   // graphicbutton identifiers
 621
 622   GADGET_ID_PREV_CHANGE_PAGE,
 623   GADGET_ID_NEXT_CHANGE_PAGE,
 624   GADGET_ID_COPY_CHANGE_PAGE,
 625   GADGET_ID_PASTE_CHANGE_PAGE,
 626
 627   // gadgets for scrolling of drawing area
 628
 629   GADGET_ID_SCROLL_UP,
 630   GADGET_ID_SCROLL_DOWN,
 631   GADGET_ID_SCROLL_LEFT,
 632   GADGET_ID_SCROLL_RIGHT,
 633   GADGET_ID_SCROLL_HORIZONTAL,
 634   GADGET_ID_SCROLL_VERTICAL,
 635
 636   // gadgets for scrolling element list
 637
 638   GADGET_ID_SCROLL_LIST_UP,
 639   GADGET_ID_SCROLL_LIST_DOWN,
 640   GADGET_ID_SCROLL_LIST_VERTICAL,
 641
 642   // checkbuttons/radiobuttons for level/element properties
 643
 644   GADGET_ID_AUTO_COUNT_GEMS,
 645   GADGET_ID_RATE_TIME_OVER_SCORE,
 646   GADGET_ID_USE_LEVELSET_ARTWORK,
 647   GADGET_ID_COPY_LEVEL_TEMPLATE,
 648   GADGET_ID_RANDOM_PERCENTAGE,
 649   GADGET_ID_RANDOM_QUANTITY,
 650   GADGET_ID_RANDOM_RESTRICTED,
 651   GADGET_ID_STICK_ELEMENT,
 652   GADGET_ID_EM_SLIPPERY_GEMS,
 653   GADGET_ID_EM_EXPLODES_BY_FIRE,
 654   GADGET_ID_USE_SPRING_BUG,
 655   GADGET_ID_USE_TIME_ORB_BUG,
 656   GADGET_ID_USE_LIFE_BUGS,
 657   GADGET_ID_RANDOM_BALL_CONTENT,
 658   GADGET_ID_INITIAL_BALL_ACTIVE,
 659   GADGET_ID_GROW_INTO_DIGGABLE,
 660   GADGET_ID_SB_FIELDS_NEEDED,
 661   GADGET_ID_SB_OBJECTS_NEEDED,
 662   GADGET_ID_AUTO_EXIT_SOKOBAN,
 663   GADGET_ID_SOLVED_BY_ONE_PLAYER,
 664   GADGET_ID_FINISH_DIG_COLLECT,
 665   GADGET_ID_KEEP_WALKABLE_CE,
 666   GADGET_ID_CONTINUOUS_SNAPPING,
 667   GADGET_ID_BLOCK_SNAP_FIELD,
 668   GADGET_ID_BLOCK_LAST_FIELD,
 669   GADGET_ID_SP_BLOCK_LAST_FIELD,
 670   GADGET_ID_INSTANT_RELOCATION,
 671   GADGET_ID_SHIFTED_RELOCATION,
 672   GADGET_ID_LAZY_RELOCATION,
 673   GADGET_ID_USE_START_ELEMENT,
 674   GADGET_ID_USE_ARTWORK_ELEMENT,
 675   GADGET_ID_USE_EXPLOSION_ELEMENT,
 676   GADGET_ID_INITIAL_GRAVITY,
 677   GADGET_ID_USE_INITIAL_INVENTORY,
 678   GADGET_ID_CAN_PASS_TO_WALKABLE,
 679   GADGET_ID_CAN_FALL_INTO_ACID,
 680   GADGET_ID_CAN_MOVE_INTO_ACID,
 681   GADGET_ID_DONT_COLLIDE_WITH,
 682   GADGET_ID_ENVELOPE_AUTOWRAP,
 683   GADGET_ID_ENVELOPE_CENTERED,
 684   GADGET_ID_MM_LASER_RED,
 685   GADGET_ID_MM_LASER_GREEN,
 686   GADGET_ID_MM_LASER_BLUE,
 687   GADGET_ID_DF_LASER_RED,
 688   GADGET_ID_DF_LASER_GREEN,
 689   GADGET_ID_DF_LASER_BLUE,
 690   GADGET_ID_ROTATE_MM_BALL_CONTENT,
 691   GADGET_ID_EXPLODE_MM_BALL,
 692   GADGET_ID_CUSTOM_INDESTRUCTIBLE,
 693   GADGET_ID_CUSTOM_CAN_EXPLODE,
 694   GADGET_ID_CUSTOM_EXPLODE_FIRE,
 695   GADGET_ID_CUSTOM_EXPLODE_SMASH,
 696   GADGET_ID_CUSTOM_EXPLODE_IMPACT,
 697   GADGET_ID_CUSTOM_WALK_TO_OBJECT,
 698   GADGET_ID_CUSTOM_DEADLY,
 699   GADGET_ID_CUSTOM_CAN_MOVE,
 700   GADGET_ID_CUSTOM_CAN_FALL,
 701   GADGET_ID_CUSTOM_CAN_SMASH,
 702   GADGET_ID_CUSTOM_SLIPPERY,
 703   GADGET_ID_CUSTOM_ACCESSIBLE,
 704   GADGET_ID_CUSTOM_GRAV_REACHABLE,
 705   GADGET_ID_CUSTOM_USE_LAST_VALUE,
 706   GADGET_ID_CUSTOM_USE_GRAPHIC,
 707   GADGET_ID_CUSTOM_USE_TEMPLATE_1,
 708   GADGET_ID_CUSTOM_USE_TEMPLATE_2,
 709   GADGET_ID_CUSTOM_USE_TEMPLATE_3,
 710   GADGET_ID_CUSTOM_CAN_CHANGE,
 711   GADGET_ID_CHANGE_USE_CONTENT,
 712   GADGET_ID_CHANGE_USE_EXPLOSION,
 713   GADGET_ID_CHANGE_ONLY_COMPLETE,
 714   GADGET_ID_CHANGE_USE_RANDOM,
 715   GADGET_ID_CHANGE_HAS_ACTION,
 716   GADGET_ID_CHANGE_DELAY,
 717   GADGET_ID_CHANGE_BY_DIRECT_ACT,
 718   GADGET_ID_CHANGE_BY_OTHER_ACT,
 719
 720   NUM_STATIC_GADGET_IDS
 721 };
 722
 723 // gadgets for buttons in element list (dynamic)
 724 #define GADGET_ID_ELEMENTLIST_FIRST     (NUM_STATIC_GADGET_IDS)
 725 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 726                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 727
 728 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 729
 730 // radio button numbers
 731 enum
 732 {
 733   RADIO_NR_NONE,
 734   RADIO_NR_DRAWING_TOOLBOX,
 735   RADIO_NR_RANDOM_ELEMENTS
 736 };
 737
 738 // values for counter gadgets
 739 enum
 740 {
 741   ED_COUNTER_ID_SELECT_LEVEL,
 742   ED_COUNTER_ID_LEVEL_XSIZE,
 743   ED_COUNTER_ID_LEVEL_YSIZE,
 744   ED_COUNTER_ID_LEVEL_GEMSLIMIT,
 745   ED_COUNTER_ID_LEVEL_TIMELIMIT,
 746   ED_COUNTER_ID_LEVEL_TIMESCORE,
 747   ED_COUNTER_ID_LEVEL_RANDOM_SEED,
 748   ED_COUNTER_ID_LEVELSET_NUM_LEVELS,
 749   ED_COUNTER_ID_LEVEL_RANDOM,
 750   ED_COUNTER_ID_ELEMENT_VALUE1,
 751   ED_COUNTER_ID_ELEMENT_VALUE2,
 752   ED_COUNTER_ID_ELEMENT_VALUE3,
 753   ED_COUNTER_ID_ELEMENT_VALUE4,
 754   ED_COUNTER_ID_YAMYAM_CONTENT,
 755   ED_COUNTER_ID_BALL_CONTENT,
 756   ED_COUNTER_ID_ANDROID_CONTENT,
 757   ED_COUNTER_ID_ENVELOPE_XSIZE,
 758   ED_COUNTER_ID_ENVELOPE_YSIZE,
 759   ED_COUNTER_ID_INVENTORY_SIZE,
 760   ED_COUNTER_ID_MM_BALL_CONTENT,
 761   ED_COUNTER_ID_CUSTOM_SCORE,
 762   ED_COUNTER_ID_CUSTOM_GEMCOUNT,
 763   ED_COUNTER_ID_CUSTOM_VALUE_FIX,
 764   ED_COUNTER_ID_CUSTOM_VALUE_RND,
 765   ED_COUNTER_ID_PUSH_DELAY_FIX,
 766   ED_COUNTER_ID_PUSH_DELAY_RND,
 767   ED_COUNTER_ID_DROP_DELAY_FIX,
 768   ED_COUNTER_ID_DROP_DELAY_RND,
 769   ED_COUNTER_ID_MOVE_DELAY_FIX,
 770   ED_COUNTER_ID_MOVE_DELAY_RND,
 771   ED_COUNTER_ID_STEP_DELAY_FIX,
 772   ED_COUNTER_ID_STEP_DELAY_RND,
 773   ED_COUNTER_ID_EXPLOSION_DELAY,
 774   ED_COUNTER_ID_IGNITION_DELAY,
 775   ED_COUNTER_ID_GROUP_CONTENT,
 776   ED_COUNTER_ID_CHANGE_DELAY_FIX,
 777   ED_COUNTER_ID_CHANGE_DELAY_RND,
 778   ED_COUNTER_ID_CHANGE_CONT_RND,
 779
 780   ED_NUM_COUNTERBUTTONS
 781 };
 782
 783 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 784 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM_SEED
 785 #define ED_COUNTER_ID_LEVELSET_FIRST    ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 786 #define ED_COUNTER_ID_LEVELSET_LAST     ED_COUNTER_ID_LEVELSET_NUM_LEVELS
 787 #define ED_COUNTER_ID_EDITOR_FIRST      ED_COUNTER_ID_LEVEL_RANDOM
 788 #define ED_COUNTER_ID_EDITOR_LAST       ED_COUNTER_ID_LEVEL_RANDOM
 789
 790 #define ED_COUNTER_ID_CUSTOM1_FIRST     ED_COUNTER_ID_CUSTOM_SCORE
 791 #define ED_COUNTER_ID_CUSTOM1_LAST      ED_COUNTER_ID_DROP_DELAY_RND
 792 #define ED_COUNTER_ID_CUSTOM2_FIRST     ED_COUNTER_ID_MOVE_DELAY_FIX
 793 #define ED_COUNTER_ID_CUSTOM2_LAST      ED_COUNTER_ID_IGNITION_DELAY
 794 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM1_FIRST
 795 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_CUSTOM2_LAST
 796
 797 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 798 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_CONT_RND
 799
 800 // values for scrollbutton gadgets
 801 enum
 802 {
 803   ED_SCROLLBUTTON_ID_AREA_UP,
 804   ED_SCROLLBUTTON_ID_AREA_DOWN,
 805   ED_SCROLLBUTTON_ID_AREA_LEFT,
 806   ED_SCROLLBUTTON_ID_AREA_RIGHT,
 807   ED_SCROLLBUTTON_ID_LIST_UP,
 808   ED_SCROLLBUTTON_ID_LIST_DOWN,
 809
 810   ED_NUM_SCROLLBUTTONS
 811 };
 812
 813 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 814 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 815
 816 // values for scrollbar gadgets
 817 enum
 818 {
 819   ED_SCROLLBAR_ID_AREA_HORIZONTAL,
 820   ED_SCROLLBAR_ID_AREA_VERTICAL,
 821   ED_SCROLLBAR_ID_LIST_VERTICAL,
 822
 823   ED_NUM_SCROLLBARS
 824 };
 825
 826 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 827 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 828
 829 // values for text input gadgets
 830 enum
 831 {
 832   ED_TEXTINPUT_ID_LEVEL_NAME,
 833   ED_TEXTINPUT_ID_LEVEL_AUTHOR,
 834   ED_TEXTINPUT_ID_LEVELSET_NAME,
 835   ED_TEXTINPUT_ID_LEVELSET_AUTHOR,
 836   ED_TEXTINPUT_ID_ELEMENT_NAME,
 837
 838   ED_NUM_TEXTINPUT
 839 };
 840
 841 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 842 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 843
 844 #define ED_TEXTINPUT_ID_LEVELSET_FIRST  ED_TEXTINPUT_ID_LEVELSET_NAME
 845 #define ED_TEXTINPUT_ID_LEVELSET_LAST   ED_TEXTINPUT_ID_LEVELSET_AUTHOR
 846
 847 // values for text area gadgets
 848 enum
 849 {
 850   ED_TEXTAREA_ID_ENVELOPE_INFO,
 851
 852   ED_NUM_TEXTAREAS
 853 };
 854
 855 #define ED_TEXTAREA_ID_LEVEL_FIRST      ED_TEXTAREA_ID_ENVELOPE
 856 #define ED_TEXTAREA_ID_LEVEL_LAST       ED_TEXTAREA_ID_ENVELOPE
 857
 858 // values for selectbox gadgets
 859 enum
 860 {
 861   ED_SELECTBOX_ID_TIME_OR_STEPS,
 862   ED_SELECTBOX_ID_TIME_SCORE_BASE,
 863   ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
 864   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
 865   ED_SELECTBOX_ID_WIND_DIRECTION,
 866   ED_SELECTBOX_ID_PLAYER_SPEED,
 867   ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE,
 868   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE,
 869   ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER,
 870   ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED,
 871   ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION,
 872   ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION,
 873   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN,
 874   ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION,
 875   ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE,
 876   ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE,
 877   ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS,
 878   ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE,
 879   ED_SELECTBOX_ID_CUSTOM_DEADLINESS,
 880   ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE,
 881   ED_SELECTBOX_ID_CHANGE_TIME_UNITS,
 882   ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION,
 883   ED_SELECTBOX_ID_CHANGE_OTHER_ACTION,
 884   ED_SELECTBOX_ID_CHANGE_SIDE,
 885   ED_SELECTBOX_ID_CHANGE_PLAYER,
 886   ED_SELECTBOX_ID_CHANGE_PAGE,
 887   ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN,
 888   ED_SELECTBOX_ID_ACTION_TYPE,
 889   ED_SELECTBOX_ID_ACTION_MODE,
 890   ED_SELECTBOX_ID_ACTION_ARG,
 891   ED_SELECTBOX_ID_SELECT_CHANGE_PAGE,
 892   ED_SELECTBOX_ID_GROUP_CHOICE_MODE,
 893
 894   ED_NUM_SELECTBOX
 895 };
 896
 897 #define ED_SELECTBOX_ID_LEVEL_FIRST     ED_SELECTBOX_ID_TIME_OR_STEPS
 898 #define ED_SELECTBOX_ID_LEVEL_LAST      ED_SELECTBOX_ID_GAME_ENGINE_TYPE
 899
 900 #define ED_SELECTBOX_ID_LEVELSET_FIRST  ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 901 #define ED_SELECTBOX_ID_LEVELSET_LAST   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE
 902
 903 #define ED_SELECTBOX_ID_CUSTOM1_FIRST   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE
 904 #define ED_SELECTBOX_ID_CUSTOM1_LAST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 905 #define ED_SELECTBOX_ID_CUSTOM2_FIRST   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN
 906 #define ED_SELECTBOX_ID_CUSTOM2_LAST    ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE
 907 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM1_FIRST
 908 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM2_LAST
 909
 910 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 911 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE
 912
 913 // values for textbutton gadgets
 914 enum
 915 {
 916   ED_TEXTBUTTON_ID_LEVELINFO_LEVEL,
 917   ED_TEXTBUTTON_ID_LEVELINFO_LEVELSET,
 918   ED_TEXTBUTTON_ID_LEVELINFO_EDITOR,
 919   ED_TEXTBUTTON_ID_PROPERTIES_INFO,
 920   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG,
 921   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1,
 922   ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2,
 923   ED_TEXTBUTTON_ID_PROPERTIES_CHANGE,
 924   ED_TEXTBUTTON_ID_SAVE_LEVELSET,
 925   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2,
 926   ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1,
 927   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE,
 928   ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE,
 929
 930   ED_NUM_TEXTBUTTONS
 931 };
 932
 933 #define ED_TAB_BUTTON_ID_LEVELINFO_FIRST ED_TEXTBUTTON_ID_LEVELINFO_LEVEL
 934 #define ED_TAB_BUTTON_ID_LEVELINFO_LAST  ED_TEXTBUTTON_ID_LEVELINFO_EDITOR
 935
 936 #define ED_TAB_BUTTON_ID_PROPERTIES_FIRST ED_TEXTBUTTON_ID_PROPERTIES_INFO
 937 #define ED_TAB_BUTTON_ID_PROPERTIES_LAST  ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
 938
 939 #define ED_TEXTBUTTON_ID_CHANGE_FIRST   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE
 940 #define ED_TEXTBUTTON_ID_CHANGE_LAST    ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE
 941
 942 // values for graphicbutton gadgets
 943 enum
 944 {
 945   ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE,
 946   ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE,
 947   ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE,
 948   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE,
 949
 950   ED_NUM_GRAPHICBUTTONS
 951 };
 952
 953 #define ED_GRAPHICBUTTON_ID_CHANGE_FIRST  ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE
 954 #define ED_GRAPHICBUTTON_ID_CHANGE_LAST   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE
 955
 956 // values for checkbutton gadgets
 957 enum
 958 {
 959   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
 960   ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
 961   ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
 962   ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
 963   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
 964   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3,
 965   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2,
 966   ED_CHECKBUTTON_ID_STICK_ELEMENT,
 967   ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS,
 968   ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE,
 969   ED_CHECKBUTTON_ID_USE_SPRING_BUG,
 970   ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG,
 971   ED_CHECKBUTTON_ID_USE_LIFE_BUGS,
 972   ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT,
 973   ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE,
 974   ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE,
 975   ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED,
 976   ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
 977   ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
 978   ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
 979   ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
 980   ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
 981   ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
 982   ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
 983   ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
 984   ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD,
 985   ED_CHECKBUTTON_ID_INSTANT_RELOCATION,
 986   ED_CHECKBUTTON_ID_SHIFTED_RELOCATION,
 987   ED_CHECKBUTTON_ID_LAZY_RELOCATION,
 988   ED_CHECKBUTTON_ID_USE_START_ELEMENT,
 989   ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT,
 990   ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT,
 991   ED_CHECKBUTTON_ID_INITIAL_GRAVITY,
 992   ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY,
 993   ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE,
 994   ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID,
 995   ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID,
 996   ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH,
 997   ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP,
 998   ED_CHECKBUTTON_ID_ENVELOPE_CENTERED,
 999   ED_CHECKBUTTON_ID_MM_LASER_RED,
1000   ED_CHECKBUTTON_ID_MM_LASER_GREEN,
1001   ED_CHECKBUTTON_ID_MM_LASER_BLUE,
1002   ED_CHECKBUTTON_ID_DF_LASER_RED,
1003   ED_CHECKBUTTON_ID_DF_LASER_GREEN,
1004   ED_CHECKBUTTON_ID_DF_LASER_BLUE,
1005   ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT,
1006   ED_CHECKBUTTON_ID_EXPLODE_MM_BALL,
1007   ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC,
1008   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1,
1009   ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE,
1010   ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE,
1011   ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE,
1012   ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT,
1013   ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE,
1014   ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE,
1015   ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL,
1016   ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH,
1017   ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY,
1018   ED_CHECKBUTTON_ID_CUSTOM_DEADLY,
1019   ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE,
1020   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE,
1021   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH,
1022   ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT,
1023   ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE,
1024   ED_CHECKBUTTON_ID_CHANGE_DELAY,
1025   ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT,
1026   ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT,
1027   ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION,
1028   ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT,
1029   ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE,
1030   ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM,
1031   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION,
1032
1033   ED_NUM_CHECKBUTTONS
1034 };
1035
1036 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS
1037 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE
1038
1039 #define ED_CHECKBUTTON_ID_LEVELSET_FIRST ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK
1040 #define ED_CHECKBUTTON_ID_LEVELSET_LAST  ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE
1041
1042 #define ED_CHECKBUTTON_ID_EDITOR_FIRST  ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
1043 #define ED_CHECKBUTTON_ID_EDITOR_LAST   ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2
1044
1045 #define ED_CHECKBUTTON_ID_CUSTOM1_FIRST ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
1046 #define ED_CHECKBUTTON_ID_CUSTOM1_LAST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
1047 #define ED_CHECKBUTTON_ID_CUSTOM2_FIRST ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE
1048 #define ED_CHECKBUTTON_ID_CUSTOM2_LAST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT
1049 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM1_FIRST
1050 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM2_LAST
1051
1052 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE
1053 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION
1054
1055 // values for radiobutton gadgets
1056 enum
1057 {
1058   ED_RADIOBUTTON_ID_PERCENTAGE,
1059   ED_RADIOBUTTON_ID_QUANTITY,
1060
1061   ED_NUM_RADIOBUTTONS
1062 };
1063
1064 #define ED_RADIOBUTTON_ID_EDITOR_FIRST  ED_RADIOBUTTON_ID_PERCENTAGE
1065 #define ED_RADIOBUTTON_ID_EDITOR_LAST   ED_RADIOBUTTON_ID_QUANTITY
1066
1067 // values for drawing area gadgets
1068 enum
1069 {
1070   ED_DRAWING_ID_DRAWING_LEVEL,
1071   ED_DRAWING_ID_YAMYAM_CONTENT_0,
1072   ED_DRAWING_ID_YAMYAM_CONTENT_1,
1073   ED_DRAWING_ID_YAMYAM_CONTENT_2,
1074   ED_DRAWING_ID_YAMYAM_CONTENT_3,
1075   ED_DRAWING_ID_YAMYAM_CONTENT_4,
1076   ED_DRAWING_ID_YAMYAM_CONTENT_5,
1077   ED_DRAWING_ID_YAMYAM_CONTENT_6,
1078   ED_DRAWING_ID_YAMYAM_CONTENT_7,
1079   ED_DRAWING_ID_MAGIC_BALL_CONTENT_0,
1080   ED_DRAWING_ID_MAGIC_BALL_CONTENT_1,
1081   ED_DRAWING_ID_MAGIC_BALL_CONTENT_2,
1082   ED_DRAWING_ID_MAGIC_BALL_CONTENT_3,
1083   ED_DRAWING_ID_MAGIC_BALL_CONTENT_4,
1084   ED_DRAWING_ID_MAGIC_BALL_CONTENT_5,
1085   ED_DRAWING_ID_MAGIC_BALL_CONTENT_6,
1086   ED_DRAWING_ID_MAGIC_BALL_CONTENT_7,
1087   ED_DRAWING_ID_ANDROID_CONTENT,
1088   ED_DRAWING_ID_AMOEBA_CONTENT,
1089   ED_DRAWING_ID_START_ELEMENT,
1090   ED_DRAWING_ID_ARTWORK_ELEMENT,
1091   ED_DRAWING_ID_EXPLOSION_ELEMENT,
1092   ED_DRAWING_ID_INVENTORY_CONTENT,
1093   ED_DRAWING_ID_MM_BALL_CONTENT,
1094   ED_DRAWING_ID_CUSTOM_GRAPHIC,
1095   ED_DRAWING_ID_CUSTOM_CONTENT,
1096   ED_DRAWING_ID_CUSTOM_MOVE_ENTER,
1097   ED_DRAWING_ID_CUSTOM_MOVE_LEAVE,
1098   ED_DRAWING_ID_CUSTOM_CHANGE_TARGET,
1099   ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT,
1100   ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER,
1101   ED_DRAWING_ID_CUSTOM_CHANGE_ACTION,
1102   ED_DRAWING_ID_GROUP_CONTENT,
1103   ED_DRAWING_ID_RANDOM_BACKGROUND,
1104
1105   ED_NUM_DRAWING_AREAS
1106 };
1107
1108 #define ED_DRAWING_ID_EDITOR_FIRST      ED_DRAWING_ID_RANDOM_BACKGROUND
1109 #define ED_DRAWING_ID_EDITOR_LAST       ED_DRAWING_ID_RANDOM_BACKGROUND
1110
1111
1112 // ----------------------------------------------------------------------------
1113 // some internally used definitions
1114 // ----------------------------------------------------------------------------
1115
1116 // values for CopyLevelToUndoBuffer()
1117 #define UNDO_IMMEDIATE                  0
1118 #define UNDO_ACCUMULATE                 1
1119
1120 // values for scrollbars
1121 #define ED_SCROLL_NO                    0
1122 #define ED_SCROLL_LEFT                  1
1123 #define ED_SCROLL_RIGHT                 2
1124 #define ED_SCROLL_UP                    4
1125 #define ED_SCROLL_DOWN                  8
1126
1127 // screens in the level editor
1128 #define ED_MODE_DRAWING                 0
1129 #define ED_MODE_INFO                    1
1130 #define ED_MODE_PROPERTIES              2
1131 #define ED_MODE_PALETTE                 3
1132
1133 // sub-screens in the global settings section
1134 #define ED_MODE_LEVELINFO_LEVEL         ED_TEXTBUTTON_ID_LEVELINFO_LEVEL
1135 #define ED_MODE_LEVELINFO_LEVELSET      ED_TEXTBUTTON_ID_LEVELINFO_LEVELSET
1136 #define ED_MODE_LEVELINFO_EDITOR        ED_TEXTBUTTON_ID_LEVELINFO_EDITOR
1137
1138 // sub-screens in the element properties section
1139 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
1140 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
1141 #define ED_MODE_PROPERTIES_CONFIG_1     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1
1142 #define ED_MODE_PROPERTIES_CONFIG_2     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2
1143 #define ED_MODE_PROPERTIES_CHANGE       ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
1144
1145 // how many steps can be cancelled
1146 #define NUM_UNDO_STEPS                  (64 + 1)
1147
1148 // values for elements with score for certain actions
1149 #define MIN_SCORE                       0
1150 #define MAX_SCORE                       999
1151
1152 // values for elements with count for collecting
1153 #define MIN_COLLECT_COUNT               0
1154 #define MAX_COLLECT_COUNT               999
1155
1156 // values for random placement
1157 #define RANDOM_USE_PERCENTAGE           0
1158 #define RANDOM_USE_QUANTITY             1
1159
1160 // values for level set save mode
1161 #define LEVELSET_SAVE_MODE_UPDATE       0
1162 #define LEVELSET_SAVE_MODE_CREATE       1
1163
1164 // default value for element tile size in drawing area
1165 #define DEFAULT_EDITOR_TILESIZE         MINI_TILESIZE
1166 #define DEFAULT_EDITOR_TILESIZE_MM      TILESIZE
1167
1168
1169 // ----------------------------------------------------------------------------
1170 // some internally used data structure definitions
1171 // ----------------------------------------------------------------------------
1172
1173 static struct
1174 {
1175   int graphic;
1176   int gadget_id;
1177   struct XYTileSize *pos;
1178   int gadget_type;
1179   char *infotext;
1180   char shortcut;
1181 } controlbutton_info[ED_NUM_CTRL_BUTTONS] =
1182 {
1183   // note: some additional characters are already reserved for "cheat mode"
1184   // shortcuts (":XYZ" style) -- for details, see "events.c"
1185
1186   // ---------- toolbox control buttons ---------------------------------------
1187
1188   {
1189     IMG_GFX_EDITOR_BUTTON_DRAW_SINGLE,          GADGET_ID_SINGLE_ITEMS,
1190     &editor.button.draw_single,                 GD_TYPE_RADIO_BUTTON,
1191     "draw single items",                        's'
1192   },
1193   {
1194     IMG_GFX_EDITOR_BUTTON_DRAW_CONNECTED,       GADGET_ID_CONNECTED_ITEMS,
1195     &editor.button.draw_connected,              GD_TYPE_RADIO_BUTTON,
1196     "draw connected items",                     'd'
1197   },
1198   {
1199     IMG_GFX_EDITOR_BUTTON_DRAW_LINE,            GADGET_ID_LINE,
1200     &editor.button.draw_line,                   GD_TYPE_RADIO_BUTTON,
1201     "draw lines",                               'l'
1202   },
1203   {
1204     IMG_GFX_EDITOR_BUTTON_DRAW_ARC,             GADGET_ID_ARC,
1205     &editor.button.draw_arc,                    GD_TYPE_RADIO_BUTTON,
1206     "draw arcs",                                'a'
1207   },
1208   {
1209     IMG_GFX_EDITOR_BUTTON_DRAW_RECTANGLE,       GADGET_ID_RECTANGLE,
1210     &editor.button.draw_rectangle,              GD_TYPE_RADIO_BUTTON,
1211     "draw outline rectangles",                  'r'
1212   },
1213   {
1214     IMG_GFX_EDITOR_BUTTON_DRAW_FILLED_BOX,      GADGET_ID_FILLED_BOX,
1215     &editor.button.draw_filled_box,             GD_TYPE_RADIO_BUTTON,
1216     "draw filled rectangles",                   'R'
1217   },
1218   {
1219     IMG_GFX_EDITOR_BUTTON_ROTATE_UP,            GADGET_ID_WRAP_UP,
1220     &editor.button.rotate_up,                   GD_TYPE_NORMAL_BUTTON,
1221     "wrap (rotate) level up",                   0
1222   },
1223   {
1224     IMG_GFX_EDITOR_BUTTON_DRAW_TEXT,            GADGET_ID_TEXT,
1225     &editor.button.draw_text,                   GD_TYPE_RADIO_BUTTON,
1226     "enter text elements",                      't'
1227   },
1228   {
1229     IMG_GFX_EDITOR_BUTTON_FLOOD_FILL,           GADGET_ID_FLOOD_FILL,
1230     &editor.button.flood_fill,                  GD_TYPE_RADIO_BUTTON,
1231     "flood fill",                               'f'
1232   },
1233   {
1234     IMG_GFX_EDITOR_BUTTON_ROTATE_LEFT,          GADGET_ID_WRAP_LEFT,
1235     &editor.button.rotate_left,                 GD_TYPE_NORMAL_BUTTON,
1236     "wrap (rotate) level left",                 0
1237   },
1238   {
1239     IMG_GFX_EDITOR_BUTTON_ZOOM_LEVEL,           GADGET_ID_ZOOM,
1240     &editor.button.zoom_level,                  GD_TYPE_NORMAL_BUTTON,
1241     "zoom level tile size",                     '+'
1242   },
1243   {
1244     IMG_GFX_EDITOR_BUTTON_ROTATE_RIGHT,         GADGET_ID_WRAP_RIGHT,
1245     &editor.button.rotate_right,                GD_TYPE_NORMAL_BUTTON,
1246     "wrap (rotate) level right",                0
1247   },
1248   {
1249     IMG_GFX_EDITOR_BUTTON_DRAW_RANDOM,          GADGET_ID_RANDOM_PLACEMENT,
1250     &editor.button.draw_random,                 GD_TYPE_NORMAL_BUTTON,
1251     "random element placement",                 0
1252   },
1253   {
1254     IMG_GFX_EDITOR_BUTTON_GRAB_BRUSH,           GADGET_ID_GRAB_BRUSH,
1255     &editor.button.grab_brush,                  GD_TYPE_RADIO_BUTTON,
1256     "grab brush",                               'b'
1257   },
1258   {
1259     IMG_GFX_EDITOR_BUTTON_ROTATE_DOWN,          GADGET_ID_WRAP_DOWN,
1260     &editor.button.rotate_down,                 GD_TYPE_NORMAL_BUTTON,
1261     "wrap (rotate) level down",                 0
1262   },
1263   {
1264     IMG_GFX_EDITOR_BUTTON_PICK_ELEMENT,         GADGET_ID_PICK_ELEMENT,
1265     &editor.button.pick_element,                GD_TYPE_RADIO_BUTTON,
1266     "pick drawing element",                     ','
1267   },
1268
1269   // ---------- level control buttons -----------------------------------------
1270
1271   {
1272     IMG_GFX_EDITOR_BUTTON_UNDO,                 GADGET_ID_UNDO,
1273     &editor.button.undo,                        GD_TYPE_NORMAL_BUTTON,
1274     "undo/redo last operation",                 'u'
1275   },
1276   {
1277     IMG_GFX_EDITOR_BUTTON_CONF,                 GADGET_ID_INFO,
1278     &editor.button.conf,                        GD_TYPE_NORMAL_BUTTON,
1279     "properties of level",                      'I'
1280   },
1281   {
1282     IMG_GFX_EDITOR_BUTTON_SAVE,                 GADGET_ID_SAVE,
1283     &editor.button.save,                        GD_TYPE_NORMAL_BUTTON,
1284     "save level",                               'S'
1285   },
1286   {
1287     IMG_GFX_EDITOR_BUTTON_CLEAR,                GADGET_ID_CLEAR,
1288     &editor.button.clear,                       GD_TYPE_NORMAL_BUTTON,
1289     "clear level",                              'C'
1290   },
1291   {
1292     IMG_GFX_EDITOR_BUTTON_TEST,                 GADGET_ID_TEST,
1293     &editor.button.test,                        GD_TYPE_NORMAL_BUTTON,
1294     "test level",                               'T'
1295   },
1296   {
1297     IMG_GFX_EDITOR_BUTTON_EXIT,                 GADGET_ID_EXIT,
1298     &editor.button.exit,                        GD_TYPE_NORMAL_BUTTON,
1299     "exit level editor",                        'E'
1300   },
1301
1302   // ---------- CE and GE control buttons -------------------------------------
1303
1304   {
1305     IMG_GFX_EDITOR_BUTTON_CE_COPY_FROM,         GADGET_ID_CUSTOM_COPY_FROM,
1306     &editor.button.ce_copy_from,                GD_TYPE_RADIO_BUTTON,
1307     "copy settings from other element",         0
1308   },
1309   {
1310     IMG_GFX_EDITOR_BUTTON_CE_COPY_TO,           GADGET_ID_CUSTOM_COPY_TO,
1311     &editor.button.ce_copy_to,                  GD_TYPE_RADIO_BUTTON,
1312     "copy settings to other element",           0
1313   },
1314   {
1315     IMG_GFX_EDITOR_BUTTON_CE_SWAP,              GADGET_ID_CUSTOM_EXCHANGE,
1316     &editor.button.ce_swap,                     GD_TYPE_RADIO_BUTTON,
1317     "exchange element with other element",      0
1318   },
1319   {
1320     IMG_GFX_EDITOR_BUTTON_CE_COPY,              GADGET_ID_CUSTOM_COPY,
1321     &editor.button.ce_copy,                     GD_TYPE_NORMAL_BUTTON,
1322     "copy settings from this element",          0
1323   },
1324   {
1325     IMG_GFX_EDITOR_BUTTON_CE_PASTE,             GADGET_ID_CUSTOM_PASTE,
1326     &editor.button.ce_paste,                    GD_TYPE_NORMAL_BUTTON,
1327     "paste settings to this element",           0
1328   },
1329
1330   // ---------- palette control buttons ---------------------------------------
1331
1332   {
1333     IMG_GFX_EDITOR_BUTTON_PROPERTIES,           GADGET_ID_PROPERTIES,
1334     &editor.button.properties,                  GD_TYPE_NORMAL_BUTTON,
1335     "properties of drawing element",            'p'
1336   },
1337   {
1338     IMG_GFX_EDITOR_BUTTON_ELEMENT_LEFT,         GADGET_ID_ELEMENT_LEFT,
1339     &editor.button.element_left,                GD_TYPE_NORMAL_BUTTON,
1340     "properties of drawing element 1",          '1'
1341   },
1342   {
1343     IMG_GFX_EDITOR_BUTTON_ELEMENT_MIDDLE,       GADGET_ID_ELEMENT_MIDDLE,
1344     &editor.button.element_middle,              GD_TYPE_NORMAL_BUTTON,
1345     "properties of drawing element 2",          '2'
1346   },
1347   {
1348     IMG_GFX_EDITOR_BUTTON_ELEMENT_RIGHT,        GADGET_ID_ELEMENT_RIGHT,
1349     &editor.button.element_right,               GD_TYPE_NORMAL_BUTTON,
1350     "properties of drawing element 3",          '3'
1351   },
1352   {
1353     IMG_GFX_EDITOR_BUTTON_PALETTE,              GADGET_ID_PALETTE,
1354     &editor.button.palette,                     GD_TYPE_NORMAL_BUTTON,
1355     "show list of elements",                    'e'
1356   }
1357 };
1358
1359 static int random_placement_value = 10;
1360 static int random_placement_method = RANDOM_USE_QUANTITY;
1361 static int random_placement_background_element = EL_SAND;
1362 static boolean random_placement_background_restricted = FALSE;
1363 static boolean stick_element_properties_window = FALSE;
1364 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
1365 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
1366 static struct ElementChangeInfo custom_element_change;
1367 static struct ElementGroupInfo group_element_info;
1368 static struct ElementInfo custom_element;
1369
1370 static char levelset_name[MAX_LEVEL_NAME_LEN + 1];
1371 static char levelset_author[MAX_LEVEL_AUTHOR_LEN + 1];
1372 static int levelset_num_levels = 100;
1373 static boolean levelset_use_levelset_artwork = FALSE;
1374 static boolean levelset_copy_level_template = FALSE;
1375 static int levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
1376
1377 static struct
1378 {
1379   int x, y;
1380   int min_value, max_value;
1381   int gadget_id_down, gadget_id_up;
1382   int gadget_id_text;
1383   int gadget_id_align;
1384   int *value;
1385   char *text_above, *text_left, *text_right;
1386 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
1387 {
1388   // ---------- current level number ------------------------------------------
1389
1390   {
1391     -1, -1,     // these values are not constant, but can change at runtime
1392     1,                                  100,
1393     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
1394     GADGET_ID_SELECT_LEVEL_TEXT,        GADGET_ID_NONE,
1395     &level_nr,
1396     NULL,                               NULL, NULL
1397   },
1398
1399   // ---------- level and editor settings -------------------------------------
1400
1401   {
1402     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1403     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
1404     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
1405     GADGET_ID_LEVEL_XSIZE_TEXT,         GADGET_ID_NONE,
1406     &level.fieldx,
1407     "playfield size:",                  NULL, "width",
1408   },
1409   {
1410     -1,                                 ED_LEVEL_SETTINGS_YPOS(4),
1411     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
1412     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
1413     GADGET_ID_LEVEL_YSIZE_TEXT,         GADGET_ID_LEVEL_XSIZE_UP,
1414     &level.fieldy,
1415     NULL,                               " ", "height",
1416   },
1417   {
1418     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
1419     0,                                  999,
1420     GADGET_ID_LEVEL_GEMSLIMIT_DOWN,     GADGET_ID_LEVEL_GEMSLIMIT_UP,
1421     GADGET_ID_LEVEL_GEMSLIMIT_TEXT,     GADGET_ID_NONE,
1422     &level.gems_needed,
1423     NULL,                               "number of gems to collect:", NULL
1424   },
1425   {
1426     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
1427     0,                                  9999,
1428     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
1429     GADGET_ID_LEVEL_TIMELIMIT_TEXT,     GADGET_ID_NONE,
1430     &level.time,
1431     "time or step limit to solve level:", NULL, NULL
1432   },
1433   {
1434     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
1435     0,                                  999,
1436     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
1437     GADGET_ID_LEVEL_TIMESCORE_TEXT,     GADGET_ID_NONE,
1438     &level.score[SC_TIME_BONUS],
1439     "score for time or steps left:",    NULL, NULL
1440   },
1441   {
1442     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(13),
1443     0,                                  9999,
1444     GADGET_ID_LEVEL_RANDOM_SEED_DOWN,   GADGET_ID_LEVEL_RANDOM_SEED_UP,
1445     GADGET_ID_LEVEL_RANDOM_SEED_TEXT,   GADGET_ID_NONE,
1446     &level.random_seed,
1447     NULL,                               "random seed:", "(0 => random)"
1448   },
1449   {
1450     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1451     1,                                  MAX_LEVELS,
1452     GADGET_ID_LEVELSET_NUM_LEVELS_DOWN, GADGET_ID_LEVELSET_NUM_LEVELS_UP,
1453     GADGET_ID_LEVELSET_NUM_LEVELS_TEXT, GADGET_ID_NONE,
1454     &levelset_num_levels,
1455     "number of levels:",                NULL, NULL,
1456   },
1457   {
1458     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1459     1,                                  100,
1460     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
1461     GADGET_ID_LEVEL_RANDOM_TEXT,        GADGET_ID_NONE,
1462     &random_placement_value,
1463     "random element placement:",        NULL, "in"
1464   },
1465
1466   // ---------- element settings: configure (various elements) ----------------
1467
1468   {
1469     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1470     MIN_SCORE,                          MAX_SCORE,
1471     GADGET_ID_ELEMENT_VALUE1_DOWN,      GADGET_ID_ELEMENT_VALUE1_UP,
1472     GADGET_ID_ELEMENT_VALUE1_TEXT,      GADGET_ID_NONE,
1473     NULL,                               // will be set when used
1474     NULL,                               NULL, NULL
1475   },
1476   {
1477     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
1478     MIN_SCORE,                          MAX_SCORE,
1479     GADGET_ID_ELEMENT_VALUE2_DOWN,      GADGET_ID_ELEMENT_VALUE2_UP,
1480     GADGET_ID_ELEMENT_VALUE2_TEXT,      GADGET_ID_NONE,
1481     NULL,                               // will be set when used
1482     NULL,                               NULL, NULL
1483   },
1484   {
1485     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1486     MIN_SCORE,                          MAX_SCORE,
1487     GADGET_ID_ELEMENT_VALUE3_DOWN,      GADGET_ID_ELEMENT_VALUE3_UP,
1488     GADGET_ID_ELEMENT_VALUE3_TEXT,      GADGET_ID_NONE,
1489     NULL,                               // will be set when used
1490     NULL,                               NULL, NULL
1491   },
1492   {
1493     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1494     MIN_SCORE,                          MAX_SCORE,
1495     GADGET_ID_ELEMENT_VALUE4_DOWN,      GADGET_ID_ELEMENT_VALUE4_UP,
1496     GADGET_ID_ELEMENT_VALUE4_TEXT,      GADGET_ID_NONE,
1497     NULL,                               // will be set when used
1498     NULL,                               NULL, NULL
1499   },
1500   {
1501     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1502     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1503     GADGET_ID_YAMYAM_CONTENT_DOWN,      GADGET_ID_YAMYAM_CONTENT_UP,
1504     GADGET_ID_YAMYAM_CONTENT_TEXT,      GADGET_ID_NONE,
1505     &level.num_yamyam_contents,
1506     NULL,                               NULL, "number of content areas"
1507   },
1508   {
1509     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1510     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1511     GADGET_ID_BALL_CONTENT_DOWN,        GADGET_ID_BALL_CONTENT_UP,
1512     GADGET_ID_BALL_CONTENT_TEXT,        GADGET_ID_NONE,
1513     &level.num_ball_contents,
1514     NULL,                               NULL, "number of content areas"
1515   },
1516   {
1517     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1518     MIN_ANDROID_ELEMENTS,               MAX_ANDROID_ELEMENTS,
1519     GADGET_ID_ANDROID_CONTENT_DOWN,     GADGET_ID_ANDROID_CONTENT_UP,
1520     GADGET_ID_ANDROID_CONTENT_TEXT,     GADGET_ID_NONE,
1521     &level.num_android_clone_elements,
1522     NULL,                               NULL, "number of clonable elements"
1523   },
1524   {
1525     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1526     MIN_ENVELOPE_XSIZE,                 MAX_ENVELOPE_XSIZE,
1527     GADGET_ID_ENVELOPE_XSIZE_DOWN,      GADGET_ID_ENVELOPE_XSIZE_UP,
1528     GADGET_ID_ENVELOPE_XSIZE_TEXT,      GADGET_ID_NONE,
1529     NULL,                               // will be set when used
1530     NULL,                               NULL, "width",
1531   },
1532   {
1533     -1,                                 ED_ELEMENT_SETTINGS_YPOS(0),
1534     MIN_ENVELOPE_YSIZE,                 MAX_ENVELOPE_YSIZE,
1535     GADGET_ID_ENVELOPE_YSIZE_DOWN,      GADGET_ID_ENVELOPE_YSIZE_UP,
1536     GADGET_ID_ENVELOPE_YSIZE_TEXT,      GADGET_ID_ENVELOPE_XSIZE_UP,
1537     NULL,                               // will be set when used
1538     NULL,                               " ", "height",
1539   },
1540   {
1541     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1542     MIN_INITIAL_INVENTORY_SIZE,         MAX_INITIAL_INVENTORY_SIZE,
1543     GADGET_ID_INVENTORY_SIZE_DOWN,      GADGET_ID_INVENTORY_SIZE_UP,
1544     GADGET_ID_INVENTORY_SIZE_TEXT,      GADGET_ID_NONE,
1545     &level.initial_inventory_size[0],
1546     NULL,                               NULL, "number of inventory elements"
1547   },
1548   {
1549     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1550     MIN_ELEMENTS_IN_GROUP,              MAX_MM_BALL_CONTENTS,
1551     GADGET_ID_MM_BALL_CONTENT_DOWN,     GADGET_ID_MM_BALL_CONTENT_UP,
1552     GADGET_ID_MM_BALL_CONTENT_TEXT,     GADGET_ID_NONE,
1553     &level.num_mm_ball_contents,
1554     NULL,                               NULL, "number of content elements"
1555   },
1556
1557   // ---------- element settings: configure 1 (custom elements) ---------------
1558
1559   {
1560     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1561     MIN_SCORE,                          MAX_SCORE,
1562     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
1563     GADGET_ID_CUSTOM_SCORE_TEXT,        GADGET_ID_NONE,
1564     &custom_element.collect_score_initial,
1565     NULL,                               "CE score", " "
1566   },
1567   {
1568     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1569     MIN_COLLECT_COUNT,                  MAX_COLLECT_COUNT,
1570     GADGET_ID_CUSTOM_GEMCOUNT_DOWN,     GADGET_ID_CUSTOM_GEMCOUNT_UP,
1571     GADGET_ID_CUSTOM_GEMCOUNT_TEXT,     GADGET_ID_CUSTOM_SCORE_UP,
1572     &custom_element.collect_count_initial,
1573     NULL,                               "CE count", NULL
1574   },
1575   {
1576     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1577     0,                                  9999,
1578     GADGET_ID_CUSTOM_VALUE_FIX_DOWN,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1579     GADGET_ID_CUSTOM_VALUE_FIX_TEXT,    GADGET_ID_NONE,
1580     &custom_element.ce_value_fixed_initial,
1581     NULL,                               "CE value", NULL
1582   },
1583   {
1584     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1585     0,                                  9999,
1586     GADGET_ID_CUSTOM_VALUE_RND_DOWN,    GADGET_ID_CUSTOM_VALUE_RND_UP,
1587     GADGET_ID_CUSTOM_VALUE_RND_TEXT,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1588     &custom_element.ce_value_random_initial,
1589     NULL,                               "+random", NULL
1590   },
1591   {
1592     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1593     0,                                  999,
1594     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
1595     GADGET_ID_PUSH_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1596     &custom_element.push_delay_fixed,
1597     NULL,                               "push delay", NULL
1598   },
1599   {
1600     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1601     0,                                  999,
1602     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
1603     GADGET_ID_PUSH_DELAY_RND_TEXT,      GADGET_ID_PUSH_DELAY_FIX_UP,
1604     &custom_element.push_delay_random,
1605     NULL,                               "+random", NULL
1606   },
1607   {
1608     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(7),
1609     0,                                  999,
1610     GADGET_ID_DROP_DELAY_FIX_DOWN,      GADGET_ID_DROP_DELAY_FIX_UP,
1611     GADGET_ID_DROP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1612     &custom_element.drop_delay_fixed,
1613     NULL,                               "drop delay", NULL
1614   },
1615   {
1616     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
1617     0,                                  999,
1618     GADGET_ID_DROP_DELAY_RND_DOWN,      GADGET_ID_DROP_DELAY_RND_UP,
1619     GADGET_ID_DROP_DELAY_RND_TEXT,      GADGET_ID_DROP_DELAY_FIX_UP,
1620     &custom_element.drop_delay_random,
1621     NULL,                               "+random", NULL
1622   },
1623
1624   // ---------- element settings: configure 2 (custom elements) ---------------
1625
1626   {
1627     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1628     0,                                  999,
1629     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
1630     GADGET_ID_MOVE_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1631     &custom_element.move_delay_fixed,
1632     NULL,                               "move delay", NULL
1633   },
1634   {
1635     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1636     0,                                  999,
1637     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
1638     GADGET_ID_MOVE_DELAY_RND_TEXT,      GADGET_ID_MOVE_DELAY_FIX_UP,
1639     &custom_element.move_delay_random,
1640     NULL,                               "+random", NULL
1641   },
1642   {
1643     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1644     0,                                  999,
1645     GADGET_ID_STEP_DELAY_FIX_DOWN,      GADGET_ID_STEP_DELAY_FIX_UP,
1646     GADGET_ID_STEP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1647     &custom_element.step_delay_fixed,
1648     NULL,                               "step delay", NULL
1649   },
1650   {
1651     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1652     0,                                  999,
1653     GADGET_ID_STEP_DELAY_RND_DOWN,      GADGET_ID_STEP_DELAY_RND_UP,
1654     GADGET_ID_STEP_DELAY_RND_TEXT,      GADGET_ID_STEP_DELAY_FIX_UP,
1655     &custom_element.step_delay_random,
1656     NULL,                               "+random", NULL
1657   },
1658   {
1659     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
1660     0,                                  999,
1661     GADGET_ID_EXPLOSION_DELAY_DOWN,     GADGET_ID_EXPLOSION_DELAY_UP,
1662     GADGET_ID_EXPLOSION_DELAY_TEXT,     GADGET_ID_NONE,
1663     &custom_element.explosion_delay,
1664     NULL,                               "explosion delay", NULL
1665   },
1666   {
1667     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
1668     0,                                  999,
1669     GADGET_ID_IGNITION_DELAY_DOWN,      GADGET_ID_IGNITION_DELAY_UP,
1670     GADGET_ID_IGNITION_DELAY_TEXT,      GADGET_ID_NONE,
1671     &custom_element.ignition_delay,
1672     NULL,                               "ignition delay", "(by fire)"
1673   },
1674
1675   // ---------- element settings: configure (group elements) ------------------
1676
1677   {
1678     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1679     MIN_ELEMENTS_IN_GROUP,              MAX_ELEMENTS_IN_GROUP,
1680     GADGET_ID_GROUP_CONTENT_DOWN,       GADGET_ID_GROUP_CONTENT_UP,
1681     GADGET_ID_GROUP_CONTENT_TEXT,       GADGET_ID_NONE,
1682     &group_element_info.num_elements,
1683     NULL,                               NULL, "number of elements in group"
1684   },
1685
1686   // ---------- element settings: advanced (custom elements) ------------------
1687
1688   {
1689     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(2),
1690     0,                                  999,
1691     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1692     GADGET_ID_CHANGE_DELAY_FIX_TEXT,    GADGET_ID_NONE,
1693     &custom_element_change.delay_fixed,
1694     NULL,                               "CE delay", NULL,
1695   },
1696   {
1697     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
1698     0,                                  999,
1699     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
1700     GADGET_ID_CHANGE_DELAY_RND_TEXT,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1701     &custom_element_change.delay_random,
1702     NULL,                               "+random", NULL
1703   },
1704   {
1705     ED_ELEMENT_SETTINGS_XPOS(3),        ED_ELEMENT_SETTINGS_YPOS(12),
1706     0,                                  100,
1707     GADGET_ID_CHANGE_CONT_RND_DOWN,     GADGET_ID_CHANGE_CONT_RND_UP,
1708     GADGET_ID_CHANGE_CONT_RND_TEXT,     GADGET_ID_NONE,
1709     &custom_element_change.random_percentage,
1710     NULL,                               "use random replace:", "%"
1711   },
1712 };
1713
1714 static struct
1715 {
1716   int x, y;
1717   int gadget_id;
1718   int size;
1719   char *value;
1720   char *text_above, *infotext;
1721 } textinput_info[ED_NUM_TEXTINPUT] =
1722 {
1723   {
1724     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1725     GADGET_ID_LEVEL_NAME,
1726     MAX_LEVEL_NAME_LEN,
1727     level.name,
1728     "Title:", "Title for this level"
1729   },
1730   {
1731     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1732     GADGET_ID_LEVEL_AUTHOR,
1733     MAX_LEVEL_AUTHOR_LEN,
1734     level.author,
1735     "Author:", "Author for this level"
1736   },
1737   {
1738     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1739     GADGET_ID_LEVELSET_NAME,
1740     MAX_LEVEL_NAME_LEN,
1741     levelset_name,
1742     "Title:", "Title for this or new level set"
1743   },
1744   {
1745     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1746     GADGET_ID_LEVELSET_AUTHOR,
1747     MAX_LEVEL_AUTHOR_LEN,
1748     levelset_author,
1749     "Author:", "Author for this or new level set"
1750   },
1751   {
1752     -1, -1,     // these values are not constant, but can change at runtime
1753     GADGET_ID_ELEMENT_NAME,
1754     MAX_ELEMENT_NAME_LEN - 2,           // currently 2 chars less editable
1755     custom_element.description,
1756     NULL, "Element name"
1757   }
1758 };
1759
1760 static struct
1761 {
1762   int x, y;
1763   int gadget_id;
1764   int xsize, ysize;
1765   char *value;
1766   char *text_above, *text_above_cropped, *infotext;
1767 } textarea_info[ED_NUM_TEXTAREAS] =
1768 {
1769   {
1770     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1771     GADGET_ID_ENVELOPE_INFO,
1772     MAX_ENVELOPE_XSIZE, MAX_ENVELOPE_YSIZE,
1773     NULL,
1774     "Envelope Content:", "Envelope Content (cropped):", "Envelope Content"
1775   }
1776 };
1777
1778 static struct ValueTextInfo options_time_or_steps[] =
1779 {
1780   { 0,                          "seconds"                       },
1781   { 1,                          "steps"                         },
1782
1783   { -1,                         NULL                            }
1784 };
1785
1786 static struct ValueTextInfo options_time_score_base[] =
1787 {
1788   { 1,                          "per second/step"               },
1789   { 10,                         "per 10 seconds/steps"          },
1790
1791   { -1,                         NULL                            }
1792 };
1793
1794 static struct ValueTextInfo options_game_engine_type[] =
1795 {
1796   { GAME_ENGINE_TYPE_RND,       "Rocks'n'Diamonds"              },
1797   { GAME_ENGINE_TYPE_EM,        "Emerald Mine"                  },
1798   { GAME_ENGINE_TYPE_SP,        "Supaplex"                      },
1799   { GAME_ENGINE_TYPE_MM,        "Mirror Magic"                  },
1800
1801   { -1,                         NULL                            }
1802 };
1803
1804 static struct ValueTextInfo options_levelset_save_mode[] =
1805 {
1806   { LEVELSET_SAVE_MODE_UPDATE,  "Update this level set"         },
1807   { LEVELSET_SAVE_MODE_CREATE,  "Create new level set"          },
1808
1809   { -1,                         NULL                            }
1810 };
1811
1812 static struct ValueTextInfo options_wind_direction[] =
1813 {
1814   { MV_START_NONE,              "none"                          },
1815   { MV_START_LEFT,              "left"                          },
1816   { MV_START_RIGHT,             "right"                         },
1817   { MV_START_UP,                "up"                            },
1818   { MV_START_DOWN,              "down"                          },
1819
1820   { -1,                         NULL                            }
1821 };
1822
1823 static struct ValueTextInfo options_player_speed[] =
1824 {
1825   { 0,                          "frozen"                        },
1826   { 1,                          "very slow"                     },
1827   { 2,                          "slow"                          },
1828   { 4,                          "normal"                        },
1829   { 8,                          "fast"                          },
1830   { 16,                         "very fast"                     },
1831   { 32,                         "ultrafast"                     },
1832
1833   { -1,                         NULL                            }
1834 };
1835
1836 static struct ValueTextInfo options_access_type[] =
1837 {
1838   { EP_WALKABLE,                "walkable"                      },
1839   { EP_PASSABLE,                "passable"                      },
1840
1841   { -1,                         NULL                            }
1842 };
1843
1844 static struct ValueTextInfo options_access_layer[] =
1845 {
1846   { EP_ACCESSIBLE_OVER,         "over"                          },
1847   { EP_ACCESSIBLE_INSIDE,       "inside"                        },
1848   { EP_ACCESSIBLE_UNDER,        "under"                         },
1849
1850   { -1,                         NULL                            }
1851 };
1852
1853 static struct ValueTextInfo options_access_protected[] =
1854 {
1855   { 0,                          "unprotected"                   },
1856   { 1,                          "protected"                     },
1857
1858   { -1,                         NULL                            }
1859 };
1860
1861 static struct ValueTextInfo options_access_direction[] =
1862 {
1863   { MV_NO_DIRECTION,            "no direction"                  },
1864   { MV_LEFT,                    "left"                          },
1865   { MV_RIGHT,                   "right"                         },
1866   { MV_UP,                      "up"                            },
1867   { MV_DOWN,                    "down"                          },
1868   { MV_LEFT  | MV_UP,           "left + up"                     },
1869   { MV_LEFT  | MV_DOWN,         "left + down"                   },
1870   { MV_RIGHT | MV_UP,           "right + up"                    },
1871   { MV_RIGHT | MV_DOWN,         "right + down"                  },
1872   { MV_HORIZONTAL,              "horizontal"                    },
1873   { MV_VERTICAL,                "vertical"                      },
1874   { MV_HORIZONTAL | MV_UP,      "horizontal + up"               },
1875   { MV_HORIZONTAL | MV_DOWN,    "horizontal + down"             },
1876   { MV_VERTICAL   | MV_LEFT,    "vertical + left"               },
1877   { MV_VERTICAL   | MV_RIGHT,   "vertical + right"              },
1878   { MV_ALL_DIRECTIONS,          "all directions"                },
1879
1880   { -1,                         NULL                            }
1881 };
1882
1883 static struct ValueTextInfo options_walk_to_action[] =
1884 {
1885   { EP_DIGGABLE,                "diggable"                      },
1886   { EP_COLLECTIBLE_ONLY,        "collectible"                   },
1887   { EP_DROPPABLE,               "collectible & droppable"       },
1888   { EP_THROWABLE,               "collectible & throwable"       },
1889   { EP_PUSHABLE,                "pushable"                      },
1890
1891   { -1,                         NULL                            }
1892 };
1893
1894 static struct ValueTextInfo options_move_pattern[] =
1895 {
1896   { MV_LEFT,                    "left"                          },
1897   { MV_RIGHT,                   "right"                         },
1898   { MV_UP,                      "up"                            },
1899   { MV_DOWN,                    "down"                          },
1900   { MV_HORIZONTAL,              "horizontal"                    },
1901   { MV_VERTICAL,                "vertical"                      },
1902   { MV_ALL_DIRECTIONS,          "all directions"                },
1903   { MV_WIND_DIRECTION,          "wind direction"                },
1904   { MV_TOWARDS_PLAYER,          "towards player"                },
1905   { MV_AWAY_FROM_PLAYER,        "away from player"              },
1906   { MV_ALONG_LEFT_SIDE,         "along left side"               },
1907   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
1908   { MV_TURNING_LEFT,            "turning left"                  },
1909   { MV_TURNING_RIGHT,           "turning right"                 },
1910   { MV_TURNING_LEFT_RIGHT,      "turning left, right"           },
1911   { MV_TURNING_RIGHT_LEFT,      "turning right, left"           },
1912   { MV_TURNING_RANDOM,          "turning random"                },
1913   { MV_MAZE_RUNNER,             "maze runner style"             },
1914   { MV_MAZE_HUNTER,             "maze hunter style"             },
1915   { MV_WHEN_PUSHED,             "when pushed"                   },
1916   { MV_WHEN_DROPPED,            "when dropped/thrown"           },
1917
1918   { -1,                         NULL                            }
1919 };
1920
1921 static struct ValueTextInfo options_move_direction[] =
1922 {
1923   { MV_START_AUTOMATIC,         "automatic"                     },
1924   { MV_START_LEFT,              "left"                          },
1925   { MV_START_RIGHT,             "right"                         },
1926   { MV_START_UP,                "up"                            },
1927   { MV_START_DOWN,              "down"                          },
1928   { MV_START_RANDOM,            "random"                        },
1929   { MV_START_PREVIOUS,          "previous"                      },
1930
1931   { -1,                         NULL                            }
1932 };
1933
1934 static struct ValueTextInfo options_move_stepsize[] =
1935 {
1936   { 0,                          "not moving"                    },
1937   { 1,                          "very slow"                     },
1938   { 2,                          "slow"                          },
1939   { 4,                          "normal"                        },
1940   { 8,                          "fast"                          },
1941   { 16,                         "very fast"                     },
1942   { 32,                         "even faster"                   },
1943
1944   { -1,                         NULL                            }
1945 };
1946
1947 static struct ValueTextInfo options_move_leave_type[] =
1948 {
1949   { LEAVE_TYPE_UNLIMITED,       "leave behind"                  },
1950   { LEAVE_TYPE_LIMITED,         "change it to"                  },
1951
1952   { -1,                         NULL                            }
1953 };
1954
1955 static struct ValueTextInfo options_smash_targets[] =
1956 {
1957   { EP_CAN_SMASH_PLAYER,        "player"                        },
1958 #if 0
1959   { EP_CAN_SMASH_ENEMIES,       "enemies"                       },
1960 #endif
1961   { EP_CAN_SMASH_EVERYTHING,    "everything"                    },
1962
1963   { -1,                         NULL                            }
1964 };
1965
1966 static struct ValueTextInfo options_slippery_type[] =
1967 {
1968   { SLIPPERY_ANY_RANDOM,        "random"                        },
1969   { SLIPPERY_ANY_LEFT_RIGHT,    "left, right"                   },
1970   { SLIPPERY_ANY_RIGHT_LEFT,    "right, left"                   },
1971   { SLIPPERY_ONLY_LEFT,         "only left"                     },
1972   { SLIPPERY_ONLY_RIGHT,        "only right"                    },
1973
1974   { -1,                         NULL                            }
1975 };
1976
1977 static struct ValueTextInfo options_deadliness[] =
1978 {
1979   { EP_DONT_RUN_INTO,           "running into"                  },
1980   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
1981   { EP_DONT_GET_HIT_BY,         "getting hit by"                },
1982   { EP_DONT_TOUCH,              "touching"                      },
1983
1984   { -1,                         NULL                            }
1985 };
1986
1987 static struct ValueTextInfo options_explosion_type[] =
1988 {
1989   { EXPLODES_3X3,               "3x3"                           },
1990   { EXPLODES_CROSS,             "3+3"                           },
1991   { EXPLODES_1X1,               "1x1"                           },
1992
1993   { -1,                         NULL                            }
1994 };
1995
1996 static struct ValueTextInfo options_time_units[] =
1997 {
1998   { 1,                          "frames"                        },
1999   { FRAMES_PER_SECOND,          "seconds"                       },
2000
2001   { -1,                         NULL                            }
2002 };
2003
2004 static struct ValueTextInfo options_change_direct_action[] =
2005 {
2006   { CE_TOUCHED_BY_PLAYER,       "touched by player"             },
2007   { CE_PRESSED_BY_PLAYER,       "pressed by player"             },
2008   { CE_SWITCHED_BY_PLAYER,      "switched by player"            },
2009   { CE_SNAPPED_BY_PLAYER,       "snapped by player"             },
2010   { CE_PUSHED_BY_PLAYER,        "pushed by player"              },
2011   { CE_ENTERED_BY_PLAYER,       "entered by player"             },
2012   { CE_LEFT_BY_PLAYER,          "left by player"                },
2013   { CE_DROPPED_BY_PLAYER,       "dropped/thrown by player"      },
2014   { CE_SWITCHED,                "switched"                      },
2015   { CE_HITTING_SOMETHING,       "hitting something"             },
2016   { CE_HIT_BY_SOMETHING,        "hit by something"              },
2017 #if 0
2018   { CE_BLOCKED,                 "blocked"                       },
2019 #endif
2020   { CE_IMPACT,                  "impact (on something)"         },
2021   { CE_SMASHED,                 "smashed (from above)"          },
2022 #if 0
2023   { CE_VALUE_CHANGES,           "CE value changes"              },
2024   { CE_SCORE_CHANGES,           "CE score changes"              },
2025 #endif
2026   { CE_VALUE_GETS_ZERO,         "CE value gets 0"               },
2027   { CE_SCORE_GETS_ZERO,         "CE score gets 0"               },
2028   { CE_UNDEFINED,               " "                             },
2029   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2030   { CE_CLICKED_BY_MOUSE,        "clicked by mouse"              },
2031   { CE_PRESSED_BY_MOUSE,        "pressed by mouse"              },
2032   { CE_UNDEFINED,               " "                             },
2033   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2034   { CE_NEXT_TO_PLAYER,          "next to player"                },
2035
2036   { -1,                         NULL                            }
2037 };
2038
2039 static struct ValueTextInfo options_change_other_action[] =
2040 {
2041   { CE_PLAYER_TOUCHES_X,        "player touches"                },
2042   { CE_PLAYER_PRESSES_X,        "player presses"                },
2043   { CE_PLAYER_SWITCHES_X,       "player switches"               },
2044   { CE_PLAYER_SNAPS_X,          "player snaps"                  },
2045   { CE_PLAYER_PUSHES_X,         "player pushes"                 },
2046   { CE_PLAYER_ENTERS_X,         "player enters"                 },
2047   { CE_PLAYER_LEAVES_X,         "player leaves"                 },
2048   { CE_PLAYER_DIGS_X,           "player digs"                   },
2049   { CE_PLAYER_COLLECTS_X,       "player collects"               },
2050   { CE_PLAYER_DROPS_X,          "player drops/throws"           },
2051   { CE_TOUCHING_X,              "touching"                      },
2052   { CE_HITTING_X,               "hitting"                       },
2053   { CE_DIGGING_X,               "digging"                       },
2054   { CE_HIT_BY_X,                "hit by"                        },
2055   { CE_SWITCH_OF_X,             "switch of"                     },
2056   { CE_CHANGE_OF_X,             "change by page of"             },
2057   { CE_EXPLOSION_OF_X,          "explosion of"                  },
2058   { CE_MOVE_OF_X,               "move of"                       },
2059   { CE_CREATION_OF_X,           "creation of"                   },
2060   { CE_VALUE_CHANGES_OF_X,      "CE value changes of"           },
2061   { CE_SCORE_CHANGES_OF_X,      "CE score changes of"           },
2062   { CE_VALUE_GETS_ZERO_OF_X,    "CE value gets 0 of"            },
2063   { CE_SCORE_GETS_ZERO_OF_X,    "CE score gets 0 of"            },
2064   { CE_UNDEFINED,               " "                             },
2065   { CE_HEADLINE_SPECIAL_EVENTS, "[mouse events]"                },
2066   { CE_MOUSE_CLICKED_ON_X,      "mouse clicked on"              },
2067   { CE_MOUSE_PRESSED_ON_X,      "mouse pressed on"              },
2068   { CE_UNDEFINED,               " "                             },
2069   { CE_HEADLINE_SPECIAL_EVENTS, "[static states]"               },
2070   { CE_PLAYER_NEXT_TO_X,        "player next to"                },
2071   { CE_NEXT_TO_X,               "next to"                       },
2072
2073   { -1,                         NULL                            }
2074 };
2075
2076 static struct ValueTextInfo options_change_trigger_side[] =
2077 {
2078   { CH_SIDE_LEFT,               "left"                          },
2079   { CH_SIDE_RIGHT,              "right"                         },
2080   { CH_SIDE_TOP,                "top"                           },
2081   { CH_SIDE_BOTTOM,             "bottom"                        },
2082   { CH_SIDE_LEFT_RIGHT,         "left/right"                    },
2083   { CH_SIDE_TOP_BOTTOM,         "top/bottom"                    },
2084   { CH_SIDE_ANY,                "any"                           },
2085
2086   { -1,                         NULL                            }
2087 };
2088
2089 static struct ValueTextInfo options_change_trigger_player[] =
2090 {
2091   { CH_PLAYER_1,                "1"                             },
2092   { CH_PLAYER_2,                "2"                             },
2093   { CH_PLAYER_3,                "3"                             },
2094   { CH_PLAYER_4,                "4"                             },
2095   { CH_PLAYER_ANY,              "any"                           },
2096
2097   { -1,                         NULL                            }
2098 };
2099
2100 static struct ValueTextInfo options_change_trigger_page[] =
2101 {
2102   { (1u << 0),                  "1"                             },
2103   { (1u << 1),                  "2"                             },
2104   { (1u << 2),                  "3"                             },
2105   { (1u << 3),                  "4"                             },
2106   { (1u << 4),                  "5"                             },
2107   { (1u << 5),                  "6"                             },
2108   { (1u << 6),                  "7"                             },
2109   { (1u << 7),                  "8"                             },
2110   { (1u << 8),                  "9"                             },
2111   { (1u << 9),                  "10"                            },
2112   { (1u << 10),                 "11"                            },
2113   { (1u << 11),                 "12"                            },
2114   { (1u << 12),                 "13"                            },
2115   { (1u << 13),                 "14"                            },
2116   { (1u << 14),                 "15"                            },
2117   { (1u << 15),                 "16"                            },
2118   { (1u << 16),                 "17"                            },
2119   { (1u << 17),                 "18"                            },
2120   { (1u << 18),                 "19"                            },
2121   { (1u << 19),                 "20"                            },
2122   { (1u << 20),                 "21"                            },
2123   { (1u << 21),                 "22"                            },
2124   { (1u << 22),                 "23"                            },
2125   { (1u << 23),                 "24"                            },
2126   { (1u << 24),                 "25"                            },
2127   { (1u << 25),                 "26"                            },
2128   { (1u << 26),                 "27"                            },
2129   { (1u << 27),                 "28"                            },
2130   { (1u << 28),                 "29"                            },
2131   { (1u << 29),                 "30"                            },
2132   { (1u << 30),                 "31"                            },
2133   { (1u << 31),                 "32"                            },
2134   { CH_PAGE_ANY,                "any"                           },
2135
2136   { -1,                         NULL                            }
2137 };
2138
2139 static struct ValueTextInfo options_change_replace_when[] =
2140 {
2141   { CP_WHEN_EMPTY,              "empty"                         },
2142   { CP_WHEN_WALKABLE,           "walkable"                      },
2143   { CP_WHEN_DIGGABLE,           "diggable"                      },
2144   { CP_WHEN_COLLECTIBLE,        "collectible"                   },
2145   { CP_WHEN_REMOVABLE,          "removable"                     },
2146   { CP_WHEN_DESTRUCTIBLE,       "destructible"                  },
2147
2148   { -1,                         NULL                            }
2149 };
2150
2151 static struct ValueTextInfo options_action_type[] =
2152 {
2153   { CA_NO_ACTION,               "no action"                     },
2154   { CA_UNDEFINED,               " "                             },
2155   { CA_HEADLINE_LEVEL_ACTIONS,  "[level]"                       },
2156   { CA_RESTART_LEVEL,           "restart level"                 },
2157   { CA_SHOW_ENVELOPE,           "show envelope"                 },
2158   { CA_SET_LEVEL_TIME,          "set time"                      },
2159   { CA_SET_LEVEL_SCORE,         "set score"                     },
2160   { CA_SET_LEVEL_GEMS,          "set gems"                      },
2161   { CA_SET_LEVEL_WIND,          "set wind dir."                 },
2162   { CA_SET_LEVEL_RANDOM_SEED,   "set random seed"               },
2163   { CA_UNDEFINED,               " "                             },
2164   { CA_HEADLINE_PLAYER_ACTIONS, "[player]"                      },
2165   { CA_MOVE_PLAYER,             "move player"                   },
2166   { CA_MOVE_PLAYER_NEW,         "move player new"               },
2167   { CA_EXIT_PLAYER,             "exit player"                   },
2168   { CA_KILL_PLAYER,             "kill player"                   },
2169   { CA_SET_PLAYER_KEYS,         "set keys"                      },
2170   { CA_SET_PLAYER_SPEED,        "set speed"                     },
2171   { CA_SET_PLAYER_SHIELD,       "set shield"                    },
2172   { CA_SET_PLAYER_GRAVITY,      "set gravity"                   },
2173   { CA_SET_PLAYER_ARTWORK,      "set artwork"                   },
2174   { CA_SET_PLAYER_INVENTORY,    "set inventory"                 },
2175   { CA_UNDEFINED,               " "                             },
2176   { CA_HEADLINE_CE_ACTIONS,     "[CE]"                          },
2177   { CA_SET_CE_VALUE,            "set CE value"                  },
2178   { CA_SET_CE_SCORE,            "set CE score"                  },
2179   { CA_SET_CE_ARTWORK,          "set CE artwork"                },
2180   { CA_UNDEFINED,               " "                             },
2181   { CA_HEADLINE_ENGINE_ACTIONS, "[engine]"                      },
2182   { CA_SET_ENGINE_SCAN_MODE,    "set scan mode"                 },
2183
2184   { -1,                         NULL                            }
2185 };
2186
2187 static struct ValueTextInfo options_action_mode_none[] =
2188 {
2189   { CA_MODE_UNDEFINED,          " "                             },
2190
2191   { -1,                         NULL                            }
2192 };
2193
2194 static struct ValueTextInfo options_action_mode_assign[] =
2195 {
2196   { CA_MODE_SET,                "="                             },
2197
2198   { -1,                         NULL                            }
2199 };
2200
2201 static struct ValueTextInfo options_action_mode_add_remove[] =
2202 {
2203   { CA_MODE_ADD,                "+"                             },
2204   { CA_MODE_SUBTRACT,           "-"                             },
2205
2206   { -1,                         NULL                            }
2207 };
2208
2209 static struct ValueTextInfo options_action_mode_calculate[] =
2210 {
2211   { CA_MODE_SET,                "="                             },
2212   { CA_MODE_ADD,                "+"                             },
2213   { CA_MODE_SUBTRACT,           "-"                             },
2214   { CA_MODE_MULTIPLY,           "*"                             },
2215   { CA_MODE_DIVIDE,             "/"                             },
2216   { CA_MODE_MODULO,             "%"                             },
2217
2218   { -1,                         NULL                            }
2219 };
2220
2221 static struct ValueTextInfo options_action_arg_none[] =
2222 {
2223   { CA_ARG_UNDEFINED,           "         "                     },
2224
2225   { -1,                         NULL                            }
2226 };
2227
2228 static struct ValueTextInfo options_action_arg_player[] =
2229 {
2230   { CA_ARG_PLAYER_HEADLINE,     "[player]"                      },
2231   { CA_ARG_PLAYER_1,            "1"                             },
2232   { CA_ARG_PLAYER_2,            "2"                             },
2233   { CA_ARG_PLAYER_3,            "3"                             },
2234   { CA_ARG_PLAYER_4,            "4"                             },
2235   { CA_ARG_PLAYER_ANY,          "any"                           },
2236   { CA_ARG_PLAYER_TRIGGER,      "trigger"                       },
2237   { CA_ARG_PLAYER_ACTION,       "action ->"                     },
2238
2239   { -1,                         NULL                            }
2240 };
2241
2242 static struct ValueTextInfo options_action_arg_number[] =
2243 {
2244   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2245   { CA_ARG_0,                   "0"                             },
2246   { CA_ARG_1,                   "1"                             },
2247   { CA_ARG_2,                   "2"                             },
2248   { CA_ARG_3,                   "3"                             },
2249   { CA_ARG_4,                   "4"                             },
2250   { CA_ARG_5,                   "5"                             },
2251   { CA_ARG_10,                  "10"                            },
2252   { CA_ARG_100,                 "100"                           },
2253   { CA_ARG_1000,                "1000"                          },
2254   { CA_ARG_UNDEFINED,           " "                             },
2255   { CA_ARG_NUMBER_MIN,          "min"                           },
2256   { CA_ARG_NUMBER_MAX,          "max"                           },
2257   { CA_ARG_UNDEFINED,           " "                             },
2258   { CA_ARG_NUMBER_RESET,        "reset"                         },
2259   { CA_ARG_UNDEFINED,           " "                             },
2260   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2261   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2262   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2263   { CA_ARG_UNDEFINED,           " "                             },
2264   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2265   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2266   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2267   { CA_ARG_UNDEFINED,           " "                             },
2268   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2269   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2270   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2271   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2272   { CA_ARG_UNDEFINED,           " "                             },
2273   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2274   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2275   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2276   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2277
2278   { -1,                         NULL                            }
2279 };
2280
2281 static struct ValueTextInfo options_action_arg_value[] =
2282 {
2283   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2284   { CA_ARG_0,                   "0"                             },
2285   { CA_ARG_1,                   "1"                             },
2286   { CA_ARG_2,                   "2"                             },
2287   { CA_ARG_3,                   "3"                             },
2288   { CA_ARG_4,                   "4"                             },
2289   { CA_ARG_5,                   "5"                             },
2290   { CA_ARG_10,                  "10"                            },
2291   { CA_ARG_100,                 "100"                           },
2292   { CA_ARG_1000,                "1000"                          },
2293   { CA_ARG_UNDEFINED,           " "                             },
2294   { CA_ARG_NUMBER_MIN,          "min"                           },
2295   { CA_ARG_NUMBER_MAX,          "max"                           },
2296   { CA_ARG_UNDEFINED,           " "                             },
2297   { CA_ARG_NUMBER_RESET,        "reset"                         },
2298   { CA_ARG_UNDEFINED,           " "                             },
2299   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
2300   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
2301   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
2302   { CA_ARG_UNDEFINED,           " "                             },
2303   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
2304   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
2305   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
2306   { CA_ARG_UNDEFINED,           " "                             },
2307   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
2308   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
2309   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
2310   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
2311   { CA_ARG_UNDEFINED,           " "                             },
2312   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
2313   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
2314   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
2315   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
2316   { CA_ARG_UNDEFINED,           " "                             },
2317   { CA_ARG_ELEMENT_NR_HEADLINE, "[element]"                     },
2318   { CA_ARG_ELEMENT_NR_TARGET,   "target"                        },
2319   { CA_ARG_ELEMENT_NR_TRIGGER,  "trigger"                       },
2320   { CA_ARG_ELEMENT_NR_ACTION,   "action ->"                     },
2321
2322   { -1,                         NULL                            }
2323 };
2324
2325 static struct ValueTextInfo options_action_arg_envelope[] =
2326 {
2327   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2328   { CA_ARG_1,                   "1"                             },
2329   { CA_ARG_2,                   "2"                             },
2330   { CA_ARG_3,                   "3"                             },
2331   { CA_ARG_4,                   "4"                             },
2332   { CA_ARG_UNDEFINED,           " "                             },
2333   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2334   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2335   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2336   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2337
2338   { -1,                         NULL                            }
2339 };
2340
2341 static struct ValueTextInfo options_action_arg_key[] =
2342 {
2343   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
2344   { CA_ARG_1,                   "1"                             },
2345   { CA_ARG_2,                   "2"                             },
2346   { CA_ARG_3,                   "3"                             },
2347   { CA_ARG_4,                   "4"                             },
2348   { CA_ARG_5,                   "5"                             },
2349   { CA_ARG_6,                   "6"                             },
2350   { CA_ARG_7,                   "7"                             },
2351   { CA_ARG_8,                   "8"                             },
2352   { CA_ARG_UNDEFINED,           " "                             },
2353   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2354   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2355   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2356   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2357
2358   { -1,                         NULL                            }
2359 };
2360
2361 static struct ValueTextInfo options_action_arg_speed[] =
2362 {
2363   { CA_ARG_SPEED_HEADLINE,      "[speed]"                       },
2364   { CA_ARG_SPEED_NOT_MOVING,    "frozen"                        },
2365   { CA_ARG_SPEED_VERY_SLOW,     "very slow"                     },
2366   { CA_ARG_SPEED_SLOW,          "slow"                          },
2367   { CA_ARG_SPEED_NORMAL,        "normal"                        },
2368   { CA_ARG_SPEED_FAST,          "fast"                          },
2369   { CA_ARG_SPEED_VERY_FAST,     "very fast"                     },
2370   { CA_ARG_SPEED_EVEN_FASTER,   "ultrafast"                     },
2371   { CA_ARG_UNDEFINED,           " "                             },
2372   { CA_ARG_SPEED_SLOWER,        "slower"                        },
2373   { CA_ARG_SPEED_FASTER,        "faster"                        },
2374   { CA_ARG_UNDEFINED,           " "                             },
2375   { CA_ARG_SPEED_RESET,         "reset"                         },
2376
2377   { -1,                         NULL                            }
2378 };
2379
2380 static struct ValueTextInfo options_action_arg_shield[] =
2381 {
2382   { CA_ARG_SHIELD_HEADLINE,     "[shield]"                      },
2383   { CA_ARG_SHIELD_OFF,          "off"                           },
2384   { CA_ARG_SHIELD_NORMAL,       "normal"                        },
2385   { CA_ARG_SHIELD_DEADLY,       "deadly"                        },
2386
2387   { -1,                         NULL                            }
2388 };
2389
2390 static struct ValueTextInfo options_action_arg_artwork[] =
2391 {
2392   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
2393   { CA_ARG_ELEMENT_TARGET,      "target"                        },
2394   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
2395   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
2396   { CA_ARG_UNDEFINED,           " "                             },
2397   { CA_ARG_ELEMENT_RESET,       "reset"                         },
2398
2399   { -1,                         NULL                            }
2400 };
2401
2402 static struct ValueTextInfo options_action_arg_gravity[] =
2403 {
2404   { CA_ARG_GRAVITY_HEADLINE,    "[gravity]"                     },
2405   { CA_ARG_GRAVITY_ON,          "on"                            },
2406   { CA_ARG_GRAVITY_OFF,         "off"                           },
2407   { CA_ARG_GRAVITY_TOGGLE,      "toggle"                        },
2408
2409   { -1,                         NULL                            }
2410 };
2411
2412 static struct ValueTextInfo options_action_arg_direction[] =
2413 {
2414   { CA_ARG_DIRECTION_HEADLINE,  "[dir.]"                        },
2415   { CA_ARG_DIRECTION_NONE,      "none"                          },
2416   { CA_ARG_DIRECTION_LEFT,      "left"                          },
2417   { CA_ARG_DIRECTION_RIGHT,     "right"                         },
2418   { CA_ARG_DIRECTION_UP,        "up"                            },
2419   { CA_ARG_DIRECTION_DOWN,      "down"                          },
2420   { CA_ARG_DIRECTION_TRIGGER,   "trigger"                       },
2421   { CA_ARG_DIRECTION_TRIGGER_BACK, "-trigger"                   },
2422
2423   { -1,                         NULL                            }
2424 };
2425
2426 static struct ValueTextInfo options_action_arg_scan_mode[] =
2427 {
2428   { CA_ARG_SCAN_MODE_HEADLINE,  "[mode]"                        },
2429   { CA_ARG_SCAN_MODE_NORMAL,    "normal"                        },
2430   { CA_ARG_SCAN_MODE_REVERSE,   "reverse"                       },
2431
2432   { -1,                         NULL                            }
2433 };
2434
2435 static struct ValueTextInfo options_action_arg_inventory[] =
2436 {
2437   { CA_ARG_INVENTORY_HEADLINE,  "[add]"                         },
2438   { CA_ARG_ELEMENT_TARGET,      "+ target"                      },
2439   { CA_ARG_ELEMENT_TRIGGER,     "+ trigger"                     },
2440   { CA_ARG_ELEMENT_ACTION,      "+ action"                      },
2441   { CA_ARG_UNDEFINED,           " "                             },
2442   { CA_ARG_INVENTORY_RM_HEADLINE,"[remove]"                     },
2443   { CA_ARG_INVENTORY_RM_TARGET, "- target"                      },
2444   { CA_ARG_INVENTORY_RM_TRIGGER,"- trigger"                     },
2445   { CA_ARG_INVENTORY_RM_ACTION, "- action"                      },
2446   { CA_ARG_INVENTORY_RM_FIRST,  "- first"                       },
2447   { CA_ARG_INVENTORY_RM_LAST,   "- last"                        },
2448   { CA_ARG_INVENTORY_RM_ALL,    "- all"                         },
2449   { CA_ARG_UNDEFINED,           " "                             },
2450   { CA_ARG_INVENTORY_RESET,     "reset"                         },
2451
2452   { -1,                         NULL                            }
2453 };
2454
2455 static char options_change_page_strings[MAX_CHANGE_PAGES][10];
2456 static struct ValueTextInfo options_change_page[MAX_CHANGE_PAGES + 1] =
2457 {
2458   { -1,                         NULL                            }
2459 };
2460
2461 static struct ValueTextInfo options_group_choice_mode[] =
2462 {
2463   { ANIM_RANDOM,                "random"                        },
2464   { ANIM_LOOP,                  "loop"                          },
2465   { ANIM_LINEAR,                "linear"                        },
2466   { ANIM_PINGPONG,              "pingpong"                      },
2467   { ANIM_PINGPONG2,             "pingpong 2"                    },
2468
2469   { -1,                         NULL                            }
2470 };
2471
2472 static struct ValueTextInfo *action_arg_modes[] =
2473 {
2474   options_action_mode_none,
2475   options_action_mode_assign,
2476   options_action_mode_add_remove,
2477   options_action_mode_calculate,
2478 };
2479
2480 static struct
2481 {
2482   int value;
2483   int mode;
2484   struct ValueTextInfo *options;
2485 }
2486 action_arg_options[] =
2487 {
2488   { CA_NO_ACTION,               0,      options_action_arg_none,        },
2489   { CA_EXIT_PLAYER,             0,      options_action_arg_player,      },
2490   { CA_KILL_PLAYER,             0,      options_action_arg_player,      },
2491   { CA_MOVE_PLAYER,             0,      options_action_arg_direction,   },
2492   { CA_MOVE_PLAYER_NEW,         0,      options_action_arg_direction,   },
2493   { CA_RESTART_LEVEL,           0,      options_action_arg_none,        },
2494   { CA_SHOW_ENVELOPE,           0,      options_action_arg_envelope,    },
2495   { CA_SET_LEVEL_TIME,          3,      options_action_arg_number,      },
2496   { CA_SET_LEVEL_GEMS,          3,      options_action_arg_number,      },
2497   { CA_SET_LEVEL_SCORE,         3,      options_action_arg_number,      },
2498   { CA_SET_LEVEL_WIND,          1,      options_action_arg_direction,   },
2499   { CA_SET_LEVEL_RANDOM_SEED,   1,      options_action_arg_number,      },
2500   { CA_SET_PLAYER_KEYS,         2,      options_action_arg_key,         },
2501   { CA_SET_PLAYER_SPEED,        1,      options_action_arg_speed,       },
2502   { CA_SET_PLAYER_SHIELD,       1,      options_action_arg_shield,      },
2503   { CA_SET_PLAYER_GRAVITY,      1,      options_action_arg_gravity,     },
2504   { CA_SET_PLAYER_ARTWORK,      1,      options_action_arg_artwork,     },
2505   { CA_SET_PLAYER_INVENTORY,    0,      options_action_arg_inventory,   },
2506   { CA_SET_CE_VALUE,            3,      options_action_arg_value,       },
2507   { CA_SET_CE_SCORE,            3,      options_action_arg_value,       },
2508   { CA_SET_CE_ARTWORK,          1,      options_action_arg_artwork,     },
2509   { CA_SET_ENGINE_SCAN_MODE,    1,      options_action_arg_scan_mode,   },
2510
2511   { -1,                         FALSE,  NULL                            }
2512 };
2513
2514 static struct
2515 {
2516   int x, y;
2517   int gadget_id;
2518   int gadget_id_align;
2519   int size;     // char size of selectbox or '-1' (dynamically determined)
2520   struct ValueTextInfo *options;
2521   int *value;
2522   char *text_above, *text_left, *text_right, *infotext;
2523 } selectbox_info[ED_NUM_SELECTBOX] =
2524 {
2525   // ---------- level and editor settings -------------------------------------
2526
2527   {
2528     -1,                                 ED_LEVEL_SETTINGS_YPOS(8),
2529     GADGET_ID_TIME_OR_STEPS,            GADGET_ID_LEVEL_TIMELIMIT_UP,
2530     -1,
2531     options_time_or_steps,
2532     &level.use_step_counter,
2533     NULL, NULL, "(0 => no limit)",      "time or step limit"
2534   },
2535   {
2536     -1,                                 ED_LEVEL_SETTINGS_YPOS(10),
2537     GADGET_ID_TIME_SCORE_BASE,          GADGET_ID_LEVEL_TIMESCORE_UP,
2538     -1,
2539     options_time_score_base,
2540     &level.time_score_base,
2541     NULL, NULL, NULL,                   "time score for 1 or 10 seconds/steps"
2542   },
2543   {
2544     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(12),
2545     GADGET_ID_GAME_ENGINE_TYPE,         GADGET_ID_NONE,
2546     -1,
2547     options_game_engine_type,
2548     &level.game_engine_type,
2549     NULL, "game engine:", NULL,         "game engine"
2550   },
2551   {
2552     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2553     GADGET_ID_LEVELSET_SAVE_MODE,       GADGET_ID_NONE,
2554     -1,
2555     options_levelset_save_mode,
2556     &levelset_save_mode,
2557     "Action:", NULL, NULL,              "action when saving level set"
2558   },
2559
2560   // ---------- element settings: configure (several elements) ----------------
2561
2562   {
2563     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2564     GADGET_ID_WIND_DIRECTION,           GADGET_ID_NONE,
2565     -1,
2566     options_wind_direction,
2567     &level.wind_direction_initial,
2568     NULL, "initial wind direction:", NULL,      "initial wind direction"
2569   },
2570   {
2571     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
2572     GADGET_ID_PLAYER_SPEED,             GADGET_ID_NONE,
2573     -1,
2574     options_player_speed,
2575     &level.initial_player_stepsize[0],
2576     NULL, "initial player speed:", NULL,        "initial player speed"
2577   },
2578   {
2579     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2580     GADGET_ID_MM_BALL_CHOICE_MODE,      GADGET_ID_NONE,
2581     -1,
2582     options_group_choice_mode,
2583     &level.mm_ball_choice_mode,
2584     NULL, "choice type:", NULL,         "type of content choice"
2585   },
2586
2587   // ---------- element settings: configure 1 (custom elements) ---------------
2588
2589   {
2590     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2591     GADGET_ID_CUSTOM_ACCESS_TYPE,       GADGET_ID_NONE,
2592     -1,
2593     options_access_type,
2594     &custom_element.access_type,
2595     NULL, NULL, NULL,                   "type of access to this field"
2596   },
2597   {
2598     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2599     GADGET_ID_CUSTOM_ACCESS_LAYER,      GADGET_ID_CUSTOM_ACCESS_TYPE,
2600     -1,
2601     options_access_layer,
2602     &custom_element.access_layer,
2603     NULL, NULL, NULL,                   "layer of access for this field"
2604   },
2605   {
2606     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2607     GADGET_ID_CUSTOM_ACCESS_PROTECTED,  GADGET_ID_CUSTOM_ACCESS_LAYER,
2608     -1,
2609     options_access_protected,
2610     &custom_element.access_protected,
2611     NULL, NULL, NULL,                   "protected access for this field"
2612   },
2613   {
2614     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2615     GADGET_ID_CUSTOM_ACCESS_DIRECTION,  GADGET_ID_NONE,
2616     -1,
2617     options_access_direction,
2618     &custom_element.access_direction,
2619     NULL, "from", NULL,                 "access direction for this field"
2620   },
2621   {
2622     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2623     GADGET_ID_CUSTOM_WALK_TO_ACTION,    GADGET_ID_NONE,
2624     -1,
2625     options_walk_to_action,
2626     &custom_element.walk_to_action,
2627     NULL, NULL, NULL,                   "diggable/collectible/pushable"
2628   },
2629
2630   // ---------- element settings: configure 2 (custom elements) ---------------
2631
2632   {
2633     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(1),
2634     GADGET_ID_CUSTOM_MOVE_PATTERN,      GADGET_ID_NONE,
2635     -1,
2636     options_move_pattern,
2637     &custom_element.move_pattern,
2638     NULL, "can move", NULL,             "element move pattern"
2639   },
2640   {
2641     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2642     GADGET_ID_CUSTOM_MOVE_DIRECTION,    GADGET_ID_NONE,
2643     -1,
2644     options_move_direction,
2645     &custom_element.move_direction_initial,
2646     NULL, "starts moving", NULL,        "initial element move direction"
2647   },
2648   {
2649     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2650     GADGET_ID_CUSTOM_MOVE_STEPSIZE,     GADGET_ID_NONE,
2651     -1,
2652     options_move_stepsize,
2653     &custom_element.move_stepsize,
2654     NULL, "move/fall speed", NULL,      "speed of element movement"
2655   },
2656   {
2657     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2658     GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,   GADGET_ID_NONE,
2659     -1,
2660     options_move_leave_type,
2661     &custom_element.move_leave_type,
2662     // left text with leading spaces to place gadget next to "can dig" gadget
2663     // (needed because drawing area gadgets created after selectbox gadgets)
2664     // NULL, "can dig:    can", ":",    "leave behind or change element"
2665     NULL, "            can", ":",       "leave behind or change element"
2666   },
2667   {
2668     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
2669     GADGET_ID_CUSTOM_SMASH_TARGETS,     GADGET_ID_CUSTOM_CAN_SMASH,
2670     -1,
2671     options_smash_targets,
2672     &custom_element.smash_targets,
2673     NULL, "can smash", NULL,            "elements that can be smashed"
2674   },
2675   {
2676     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
2677     GADGET_ID_CUSTOM_SLIPPERY_TYPE,     GADGET_ID_NONE,
2678     -1,
2679     options_slippery_type,
2680     &custom_element.slippery_type,
2681     NULL, "slippery", NULL,             "where other elements fall down"
2682   },
2683   {
2684     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(10),
2685     GADGET_ID_CUSTOM_DEADLINESS,        GADGET_ID_NONE,
2686     -1,
2687     options_deadliness,
2688     &custom_element.deadliness,
2689     NULL, "deadly when", NULL,          "deadliness of element"
2690   },
2691   {
2692     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(11),
2693     GADGET_ID_CUSTOM_EXPLOSION_TYPE,    GADGET_ID_NONE,
2694     -1,
2695     options_explosion_type,
2696     &custom_element.explosion_type,
2697     NULL, "can explode", NULL,          "explosion type"
2698   },
2699
2700   // ---------- element settings: advanced (custom elements) ------------------
2701
2702   {
2703     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(3),
2704     GADGET_ID_CHANGE_TIME_UNITS,        GADGET_ID_NONE,
2705     -1,
2706     options_time_units,
2707     &custom_element_change.delay_frames,
2708     NULL, "delay time given in", NULL,  "delay time units for change"
2709   },
2710   {
2711     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(4),
2712     GADGET_ID_CHANGE_DIRECT_ACTION,     GADGET_ID_NONE,
2713     -1,
2714     options_change_direct_action,
2715     &custom_element_change.direct_action,
2716     NULL, NULL, NULL,                   "type of direct action"
2717   },
2718   {
2719     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(5),
2720     GADGET_ID_CHANGE_OTHER_ACTION,      GADGET_ID_NONE,
2721     -1,
2722     options_change_other_action,
2723     &custom_element_change.other_action,
2724     NULL, NULL, "element:",             "type of other element action"
2725   },
2726   {
2727     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(6),
2728     GADGET_ID_CHANGE_SIDE,              GADGET_ID_NONE,
2729     -1,
2730     options_change_trigger_side,
2731     &custom_element_change.trigger_side,
2732     NULL, "at", "side",                 "element side triggering change"
2733   },
2734   {
2735     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2736     GADGET_ID_CHANGE_PLAYER,            GADGET_ID_NONE,
2737     -1,
2738     options_change_trigger_player,
2739     &custom_element_change.trigger_player,
2740     NULL, "player:", " ",               "player that causes change"
2741   },
2742   {
2743     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2744     GADGET_ID_CHANGE_PAGE,              GADGET_ID_CHANGE_PLAYER,
2745     -1,
2746     options_change_trigger_page,
2747     &custom_element_change.trigger_page,
2748     NULL, "page:", NULL,                "change page that causes change"
2749   },
2750   {
2751     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(10),
2752     GADGET_ID_CHANGE_REPLACE_WHEN,      GADGET_ID_NONE,
2753     -1,
2754     options_change_replace_when,
2755     &custom_element_change.replace_when,
2756     NULL, "replace when", NULL,         "which elements can be replaced"
2757   },
2758   {
2759     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
2760     GADGET_ID_ACTION_TYPE,              GADGET_ID_NONE,
2761     15,
2762     options_action_type,
2763     &custom_element_change.action_type,
2764     NULL, NULL, NULL,                   "action on specified condition"
2765   },
2766   {
2767     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
2768     GADGET_ID_ACTION_MODE,              GADGET_ID_ACTION_TYPE,
2769     -1,
2770     options_action_mode_none,
2771     &custom_element_change.action_mode,
2772     NULL, NULL, NULL,                   "action operator"
2773   },
2774   {
2775     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
2776     GADGET_ID_ACTION_ARG,               GADGET_ID_ACTION_MODE,
2777     -1,
2778     options_action_arg_none,
2779     &custom_element_change.action_arg,
2780     NULL, NULL, NULL,                   "action parameter"
2781   },
2782   {
2783     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
2784     GADGET_ID_SELECT_CHANGE_PAGE,       GADGET_ID_NONE,
2785     3,
2786     options_change_page,
2787     &custom_element.current_change_page,
2788     NULL, NULL, NULL,                   "element change page"
2789   },
2790
2791   // ---------- element settings: configure (group elements) ------------------
2792
2793   {
2794     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2795     GADGET_ID_GROUP_CHOICE_MODE,        GADGET_ID_NONE,
2796     -1,
2797     options_group_choice_mode,
2798     &group_element_info.choice_mode,
2799     NULL, "choice type:", NULL,         "type of group element choice"
2800   },
2801 };
2802
2803 static struct
2804 {
2805   int x, y;
2806   int gadget_id;
2807   int gadget_id_align;
2808   int size;
2809   char *text;
2810   char *text_above, *text_left, *text_right, *infotext;
2811 } textbutton_info[ED_NUM_TEXTBUTTONS] =
2812 {
2813   // ---------- level and editor settings (tabs) ------------------------------
2814
2815   {
2816     ED_LEVEL_TABS_XPOS(0),              ED_LEVEL_TABS_YPOS(0),
2817     GADGET_ID_LEVELINFO_LEVEL,          GADGET_ID_NONE,
2818     8,                                  "Level",
2819     NULL, NULL, NULL,                   "Configure level properties"
2820   },
2821   {
2822     -1,                                 -1,
2823     GADGET_ID_LEVELINFO_LEVELSET,       GADGET_ID_LEVELINFO_LEVEL,
2824     8,                                  "Levelset",
2825     NULL, NULL, NULL,                   "Update this or create new level set"
2826   },
2827   {
2828     -1,                                 -1,
2829     GADGET_ID_LEVELINFO_EDITOR,         GADGET_ID_LEVELINFO_LEVELSET,
2830     8,                                  "Editor",
2831     NULL, NULL, NULL,                   "Configure editor properties"
2832   },
2833
2834   // ---------- element settings (tabs) ---------------------------------------
2835
2836   {
2837     ED_ELEMENT_TABS_XPOS(0),            ED_ELEMENT_TABS_YPOS(0),
2838     GADGET_ID_PROPERTIES_INFO,          GADGET_ID_NONE,
2839     8,                                  "Info",
2840     NULL, NULL, NULL,                   "Show information about element"
2841   },
2842   {
2843     -1,                                 -1,
2844     GADGET_ID_PROPERTIES_CONFIG,        GADGET_ID_PROPERTIES_INFO,
2845     8,                                  "Config",
2846     NULL, NULL, NULL,                   "Configure element properties"
2847   },
2848   {
2849     -1,                                 -1,
2850     GADGET_ID_PROPERTIES_CONFIG_1,      GADGET_ID_PROPERTIES_INFO,
2851     8,                                  "Config 1",
2852     NULL, NULL, NULL,                   "Configure element properties, part 1"
2853   },
2854   {
2855     -1,                                 -1,
2856     GADGET_ID_PROPERTIES_CONFIG_2,      GADGET_ID_PROPERTIES_CONFIG_1,
2857     8,                                  "Config 2",
2858     NULL, NULL, NULL,                   "Configure element properties, part 2"
2859   },
2860   {
2861     -1,                                 -1,
2862     GADGET_ID_PROPERTIES_CHANGE,        GADGET_ID_PROPERTIES_CONFIG_2,
2863     8,                                  "Change",
2864     NULL, NULL, NULL,                   "Configure custom element change pages"
2865   },
2866
2867   // ---------- level and editor settings (buttons) ---------------------------
2868
2869   {
2870     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2871     GADGET_ID_SAVE_LEVELSET,            GADGET_ID_LEVELSET_SAVE_MODE,
2872     -1,                                 "Save",
2873     NULL, NULL, NULL,                   "Update or create level set"
2874   },
2875   {
2876     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
2877     GADGET_ID_SAVE_AS_TEMPLATE_2,       GADGET_ID_NONE,
2878     -1,                                 "Save",
2879     NULL, NULL,                         "this level as level template",
2880     "Save current settings as new template"
2881   },
2882
2883   // ---------- element settings (buttons) ------------------------------------
2884
2885   {
2886     -1,                                 -1,
2887     GADGET_ID_SAVE_AS_TEMPLATE_1,       GADGET_ID_CUSTOM_USE_TEMPLATE_1,
2888     -1,                                 "Save",
2889     NULL, " ",                          "As Template",
2890     "Save current settings as new template"
2891   },
2892   {
2893     -1,                                 -1,
2894     GADGET_ID_ADD_CHANGE_PAGE,          GADGET_ID_PASTE_CHANGE_PAGE,
2895     -1,                                 "New",
2896     NULL, NULL, NULL,                   "Add new change page"
2897   },
2898   {
2899     -1,                                 -1,
2900     GADGET_ID_DEL_CHANGE_PAGE,          GADGET_ID_ADD_CHANGE_PAGE,
2901     -1,                                 "Delete",
2902     NULL, NULL, NULL,                   "Delete current change page"
2903   },
2904 };
2905
2906 static struct
2907 {
2908   int graphic;
2909   int x, y;
2910   int gadget_id;
2911   int gadget_id_align;
2912   char *text_left, *text_right, *infotext;
2913 } graphicbutton_info[ED_NUM_GRAPHICBUTTONS] =
2914 {
2915   {
2916     IMG_EDITOR_COUNTER_DOWN,
2917     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
2918     GADGET_ID_PREV_CHANGE_PAGE,         GADGET_ID_NONE,
2919     NULL, NULL,                         "select previous change page"
2920   },
2921   {
2922     IMG_EDITOR_COUNTER_UP,
2923     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2924     GADGET_ID_NEXT_CHANGE_PAGE,         GADGET_ID_SELECT_CHANGE_PAGE,
2925     NULL, "change page",                "select next change page"
2926   },
2927   {
2928     IMG_GFX_EDITOR_BUTTON_CP_COPY,
2929     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2930     GADGET_ID_COPY_CHANGE_PAGE,         GADGET_ID_NEXT_CHANGE_PAGE,
2931     " ", NULL,                          "copy settings from this change page"
2932   },
2933   {
2934     IMG_GFX_EDITOR_BUTTON_CP_PASTE,
2935     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2936     GADGET_ID_PASTE_CHANGE_PAGE,        GADGET_ID_COPY_CHANGE_PAGE,
2937     NULL, NULL,                         "paste settings to this change page"
2938   },
2939 };
2940
2941 static struct
2942 {
2943   int x, y;
2944 } scrollbutton_pos[ED_NUM_SCROLLBUTTONS];
2945
2946 static struct
2947 {
2948   int graphic;
2949   int gadget_id;
2950   char *infotext;
2951 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
2952 {
2953   {
2954     IMG_EDITOR_PLAYFIELD_SCROLL_UP,
2955     GADGET_ID_SCROLL_UP,
2956     "scroll level editing area up"
2957   },
2958   {
2959     IMG_EDITOR_PLAYFIELD_SCROLL_DOWN,
2960     GADGET_ID_SCROLL_DOWN,
2961     "scroll level editing area down"
2962   },
2963   {
2964     IMG_EDITOR_PLAYFIELD_SCROLL_LEFT,
2965     GADGET_ID_SCROLL_LEFT,
2966     "scroll level editing area left"
2967   },
2968   {
2969     IMG_EDITOR_PLAYFIELD_SCROLL_RIGHT,
2970     GADGET_ID_SCROLL_RIGHT,
2971     "scroll level editing area right"
2972   },
2973   {
2974     IMG_EDITOR_PALETTE_SCROLL_UP,
2975     GADGET_ID_SCROLL_LIST_UP,
2976     "scroll element list up ('Page Up')"
2977   },
2978   {
2979     IMG_EDITOR_PALETTE_SCROLL_DOWN,
2980     GADGET_ID_SCROLL_LIST_DOWN,
2981     "scroll element list down ('Page Down')"
2982   },
2983 };
2984
2985 static struct
2986 {
2987   int x, y;
2988   int width, height;
2989   int wheel_x, wheel_y;
2990   int wheel_width, wheel_height;
2991 } scrollbar_pos[ED_NUM_SCROLLBARS];
2992
2993 static struct
2994 {
2995   int graphic;
2996   int type;
2997   int gadget_id;
2998   char *infotext;
2999 } scrollbar_info[ED_NUM_SCROLLBARS] =
3000 {
3001   {
3002     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3003     GD_TYPE_SCROLLBAR_HORIZONTAL,
3004     GADGET_ID_SCROLL_HORIZONTAL,
3005     "scroll level editing area horizontally"
3006   },
3007   {
3008     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
3009     GD_TYPE_SCROLLBAR_VERTICAL,
3010     GADGET_ID_SCROLL_VERTICAL,
3011     "scroll level editing area vertically"
3012   },
3013   {
3014     IMG_EDITOR_PALETTE_SCROLLBAR,
3015     GD_TYPE_SCROLLBAR_VERTICAL,
3016     GADGET_ID_SCROLL_LIST_VERTICAL,
3017     "scroll element list vertically"
3018   }
3019 };
3020
3021
3022 static struct
3023 {
3024   int x, y;
3025   int gadget_id;
3026   int gadget_id_align;
3027   int radio_button_nr;
3028   int *value;
3029   int checked_value;
3030   char *text_left, *text_right, *infotext;
3031 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
3032 {
3033   {
3034     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3035     GADGET_ID_RANDOM_PERCENTAGE,        GADGET_ID_LEVEL_RANDOM_UP,
3036     RADIO_NR_RANDOM_ELEMENTS,
3037     &random_placement_method,           RANDOM_USE_PERCENTAGE,
3038     " ", "percentage",                  "use percentage for random elements"
3039   },
3040   {
3041     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
3042     GADGET_ID_RANDOM_QUANTITY,          GADGET_ID_RANDOM_PERCENTAGE,
3043     RADIO_NR_RANDOM_ELEMENTS,
3044     &random_placement_method,           RANDOM_USE_QUANTITY,
3045     " ", "quantity",                    "use quantity for random elements"
3046   }
3047 };
3048
3049 static struct
3050 {
3051   int x, y;
3052   int gadget_id;
3053   int gadget_id_align;
3054   boolean *value;
3055   char *text_above, *text_left, *text_right, *infotext;
3056 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
3057 {
3058   // ---------- level and editor settings -------------------------------------
3059
3060   {
3061     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(6),
3062     GADGET_ID_AUTO_COUNT_GEMS,          GADGET_ID_NONE,
3063     &level.auto_count_gems,
3064     NULL, NULL,
3065     "automatically count gems needed",  "set counter to number of gems"
3066   },
3067   {
3068     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(11),
3069     GADGET_ID_RATE_TIME_OVER_SCORE,     GADGET_ID_NONE,
3070     &level.rate_time_over_score,
3071     NULL, NULL,
3072     "rate time/steps used over score",  "sort high scores by playing time/steps"
3073   },
3074   {
3075     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
3076     GADGET_ID_USE_LEVELSET_ARTWORK,     GADGET_ID_NONE,
3077     &levelset_use_levelset_artwork,
3078     NULL, NULL,
3079     "use current custom artwork",       "use custom artwork of this level set"
3080   },
3081   {
3082     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(8),
3083     GADGET_ID_COPY_LEVEL_TEMPLATE,      GADGET_ID_NONE,
3084     &levelset_copy_level_template,
3085     NULL, NULL,
3086     "copy current level template",      "copy level template of this level set"
3087   },
3088   {
3089     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
3090     GADGET_ID_RANDOM_RESTRICTED,        GADGET_ID_NONE,
3091     &random_placement_background_restricted,
3092     NULL, NULL,
3093     "restrict random placement to:",    "set random placement restriction"
3094   },
3095   {
3096     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
3097     GADGET_ID_CUSTOM_USE_TEMPLATE_3,    GADGET_ID_NONE,
3098     &setup.editor.use_template_for_new_levels,
3099     "Template for new levels and CE/GE:", NULL,
3100     "use template for new levels",      "use template for level properties"
3101   },
3102   {
3103     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
3104     GADGET_ID_CUSTOM_USE_TEMPLATE_2,    GADGET_ID_NONE,
3105     &level.use_custom_template,
3106     NULL, NULL,
3107     "use template for custom elements", "use template for custom properties"
3108   },
3109
3110   // ---------- element settings: configure (various elements) ----------------
3111
3112   {
3113     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3114     GADGET_ID_STICK_ELEMENT,            GADGET_ID_NONE,
3115     &stick_element_properties_window,
3116     NULL, NULL,
3117     "stick this screen to edit content","stick this screen to edit content"
3118   },
3119   {
3120     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3121     GADGET_ID_EM_SLIPPERY_GEMS,         GADGET_ID_NONE,
3122     &level.em_slippery_gems,
3123     NULL, NULL,
3124     "slip down from certain flat walls","use EM/DC style slipping behaviour"
3125   },
3126   {
3127     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3128     GADGET_ID_EM_EXPLODES_BY_FIRE,      GADGET_ID_NONE,
3129     &level.em_explodes_by_fire,
3130     NULL, NULL,
3131     "explodes with chain reaction",     "use R'n'D style explosion behaviour"
3132   },
3133   {
3134     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3135     GADGET_ID_USE_SPRING_BUG,           GADGET_ID_NONE,
3136     &level.use_spring_bug,
3137     NULL, NULL,
3138     "use spring pushing bug",           "use odd spring pushing behaviour"
3139   },
3140   {
3141     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3142     GADGET_ID_USE_TIME_ORB_BUG,         GADGET_ID_NONE,
3143     &level.use_time_orb_bug,
3144     NULL, NULL,
3145     "use time orb bug",                 "use odd time orb behaviour"
3146   },
3147   {
3148     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3149     GADGET_ID_USE_LIFE_BUGS,            GADGET_ID_NONE,
3150     &level.use_life_bugs,
3151     NULL, NULL,
3152     "use buggy element behaviour",      "use odd (historic) element behaviour"
3153   },
3154   {
3155     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3156     GADGET_ID_RANDOM_BALL_CONTENT,      GADGET_ID_NONE,
3157     &level.ball_random,
3158     NULL, NULL,
3159     "create single random element",     "only create one element from content"
3160   },
3161   {
3162     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3163     GADGET_ID_INITIAL_BALL_ACTIVE,      GADGET_ID_NONE,
3164     &level.ball_active_initial,
3165     NULL, NULL,
3166     "magic ball initially activated",   "activate magic ball after level start"
3167   },
3168   {
3169     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3170     GADGET_ID_GROW_INTO_DIGGABLE,       GADGET_ID_NONE,
3171     &level.grow_into_diggable,
3172     NULL, NULL,
3173     "can grow into anything diggable",  "grow into more than just sand"
3174   },
3175   {
3176     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3177     GADGET_ID_SB_FIELDS_NEEDED,         GADGET_ID_NONE,
3178     &level.sb_fields_needed,
3179     NULL, NULL,
3180     "all fields need to be filled",     "require all SB fields to be solved"
3181   },
3182   {
3183     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3184     GADGET_ID_SB_OBJECTS_NEEDED,        GADGET_ID_NONE,
3185     &level.sb_objects_needed,
3186     NULL, NULL,
3187     "all objects need to be placed",    "require all SB objects to be solved"
3188   },
3189   {
3190     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3191     GADGET_ID_AUTO_EXIT_SOKOBAN,        GADGET_ID_NONE,
3192     &level.auto_exit_sokoban,
3193     NULL, NULL,
3194     "exit level if all tasks solved",   "automatically finish Sokoban levels"
3195   },
3196   {
3197     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3198     GADGET_ID_SOLVED_BY_ONE_PLAYER,     GADGET_ID_NONE,
3199     &level.solved_by_one_player,
3200     NULL, NULL,
3201     "only one player must enter exit",  "level solved by first player in exit"
3202   },
3203   {
3204     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3205     GADGET_ID_FINISH_DIG_COLLECT,       GADGET_ID_NONE,
3206     &level.finish_dig_collect,
3207     NULL, NULL,
3208     "CE action on finished dig/collect", "only finished dig/collect triggers CE"
3209   },
3210   {
3211     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3212     GADGET_ID_KEEP_WALKABLE_CE,         GADGET_ID_NONE,
3213     &level.keep_walkable_ce,
3214     NULL, NULL,
3215     "keep walkable CE changed to player", "keep CE changing to player if walkable"
3216   },
3217   {
3218     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3219     GADGET_ID_CONTINUOUS_SNAPPING,      GADGET_ID_NONE,
3220     &level.continuous_snapping,
3221     NULL, NULL,
3222     "continuous snapping",              "use snapping without releasing key"
3223   },
3224   {
3225     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3226     GADGET_ID_BLOCK_SNAP_FIELD,         GADGET_ID_NONE,
3227     &level.block_snap_field,
3228     NULL, NULL,
3229     "block snapped field when snapping", "use snapping delay to show animation"
3230   },
3231   {
3232     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3233     GADGET_ID_BLOCK_LAST_FIELD,         GADGET_ID_NONE,
3234     &level.block_last_field,
3235     NULL, NULL,
3236     "block last field when moving",     "player blocks last field when moving"
3237   },
3238   {
3239     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3240     GADGET_ID_SP_BLOCK_LAST_FIELD,      GADGET_ID_NONE,
3241     &level.sp_block_last_field,
3242     NULL, NULL,
3243     "block last field when moving",     "player blocks last field when moving"
3244   },
3245   {
3246     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3247     GADGET_ID_INSTANT_RELOCATION,       GADGET_ID_NONE,
3248     &level.instant_relocation,
3249     NULL, NULL,
3250     "no scrolling when relocating",     "player gets relocated without delay"
3251   },
3252   {
3253     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3254     GADGET_ID_SHIFTED_RELOCATION,       GADGET_ID_NONE,
3255     &level.shifted_relocation,
3256     NULL, NULL,
3257     "no centering when relocating",     "level not centered after relocation"
3258   },
3259   {
3260     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3261     GADGET_ID_LAZY_RELOCATION,          GADGET_ID_NONE,
3262     &level.lazy_relocation,
3263     NULL, NULL,
3264     "only redraw off-screen relocation","no redraw if relocation target visible"
3265   },
3266   {
3267     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3268     GADGET_ID_USE_START_ELEMENT,        GADGET_ID_NONE,
3269     &level.use_start_element[0],
3270     NULL, NULL,
3271     "use level start element:",        "start level at this element's position"
3272   },
3273   {
3274     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3275     GADGET_ID_USE_ARTWORK_ELEMENT,      GADGET_ID_NONE,
3276     &level.use_artwork_element[0],
3277     NULL, NULL,
3278     "use artwork from element:",        "use player artwork from other element"
3279   },
3280   {
3281     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(12),
3282     GADGET_ID_USE_EXPLOSION_ELEMENT,    GADGET_ID_NONE,
3283     &level.use_explosion_element[0],
3284     NULL, NULL,
3285     "use explosion from element:",      "use explosion properties from element"
3286   },
3287   {
3288     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3289     GADGET_ID_INITIAL_GRAVITY,          GADGET_ID_NONE,
3290     &level.initial_player_gravity[0],
3291     NULL, NULL,
3292     "use initial gravity",              "set initial player gravity"
3293   },
3294   {
3295     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3296     GADGET_ID_USE_INITIAL_INVENTORY,    GADGET_ID_NONE,
3297     &level.use_initial_inventory[0],
3298     NULL, NULL,
3299     "use initial inventory:",           "use collected elements on level start"
3300   },
3301   {
3302     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3303     GADGET_ID_CAN_PASS_TO_WALKABLE,     GADGET_ID_NONE,
3304     &level.can_pass_to_walkable,
3305     NULL, NULL,
3306     "can pass to walkable element",     "player can pass to empty or walkable"
3307   },
3308   {
3309     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3310     GADGET_ID_CAN_FALL_INTO_ACID,       GADGET_ID_NONE,
3311     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3312     NULL, NULL,
3313     "can fall into acid (with gravity)","player can fall into acid pool"
3314   },
3315   {
3316     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
3317     GADGET_ID_CAN_MOVE_INTO_ACID,       GADGET_ID_NONE,
3318     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
3319     NULL, NULL,
3320     "can move into acid",               "element can move into acid pool"
3321   },
3322   {
3323     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3324     GADGET_ID_DONT_COLLIDE_WITH,        GADGET_ID_NONE,
3325     &custom_element_properties[EP_DONT_COLLIDE_WITH],
3326     NULL, NULL,
3327     "deadly when colliding with",       "element is deadly when hitting player"
3328   },
3329   {
3330     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3331     GADGET_ID_ENVELOPE_AUTOWRAP,        GADGET_ID_NONE,
3332     &level.envelope[0].autowrap,
3333     NULL, NULL,
3334     "auto-wrap",                        "automatically wrap envelope text"
3335   },
3336   {
3337     -1,                                 ED_ELEMENT_SETTINGS_YPOS(1),
3338     GADGET_ID_ENVELOPE_CENTERED,        GADGET_ID_ENVELOPE_AUTOWRAP,
3339     &level.envelope[0].centered,
3340     NULL, " ",
3341     "centered",                         "automatically center envelope text"
3342   },
3343   {
3344     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3345     GADGET_ID_MM_LASER_RED,             GADGET_ID_NONE,
3346     &level.mm_laser_red,
3347     "choose color components for laser:", NULL,
3348     "red",                              "use red color components in laser"
3349   },
3350   {
3351     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3352     GADGET_ID_MM_LASER_GREEN,           GADGET_ID_NONE,
3353     &level.mm_laser_green,
3354     NULL, NULL,
3355     "green",                            "use green color components in laser"
3356   },
3357   {
3358     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3359     GADGET_ID_MM_LASER_BLUE,            GADGET_ID_NONE,
3360     &level.mm_laser_blue,
3361     NULL, NULL,
3362     "blue",                             "use blue color components in laser"
3363   },
3364   {
3365     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3366     GADGET_ID_DF_LASER_RED,             GADGET_ID_NONE,
3367     &level.df_laser_red,
3368     "choose color components for laser:", NULL,
3369     "red",                              "use red color components in laser"
3370   },
3371   {
3372     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3373     GADGET_ID_DF_LASER_GREEN,           GADGET_ID_NONE,
3374     &level.df_laser_green,
3375     NULL, NULL,
3376     "green",                            "use green color components in laser"
3377   },
3378   {
3379     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
3380     GADGET_ID_DF_LASER_BLUE,            GADGET_ID_NONE,
3381     &level.df_laser_blue,
3382     NULL, NULL,
3383     "blue",                             "use blue color components in laser"
3384   },
3385   {
3386     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
3387     GADGET_ID_ROTATE_MM_BALL_CONTENT,   GADGET_ID_NONE,
3388     &level.rotate_mm_ball_content,
3389     NULL, NULL,
3390     "randomly rotate created content",  "randomly rotate newly created content"
3391   },
3392   {
3393     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
3394     GADGET_ID_EXPLODE_MM_BALL,          GADGET_ID_NONE,
3395     &level.explode_mm_ball,
3396     NULL, NULL,
3397     "explode ball instead of melting",  "use explosion to release ball content"
3398   },
3399
3400   // ---------- element settings: configure 1 (custom elements) ---------------
3401
3402   {
3403     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3404     GADGET_ID_CUSTOM_USE_GRAPHIC,       GADGET_ID_NONE,
3405     &custom_element.use_gfx_element,
3406     NULL, NULL,
3407     "use graphic of element:",          "use existing element graphic"
3408   },
3409   {
3410     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
3411     GADGET_ID_CUSTOM_USE_TEMPLATE_1,    GADGET_ID_NONE,
3412     &level.use_custom_template,
3413     NULL, NULL,
3414     "use template",                     "use template for custom properties"
3415   },
3416   {
3417     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
3418     GADGET_ID_CUSTOM_ACCESSIBLE,        GADGET_ID_NONE,
3419     &custom_element_properties[EP_ACCESSIBLE],
3420     NULL, NULL,
3421     NULL,                               "player can walk to or pass this field"
3422   },
3423   {
3424     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3425     GADGET_ID_CUSTOM_GRAV_REACHABLE,    GADGET_ID_NONE,
3426     &custom_element_properties[EP_GRAVITY_REACHABLE],
3427     NULL, NULL,
3428     "reachable despite gravity",        "player can walk/dig despite gravity"
3429   },
3430   {
3431     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3432     GADGET_ID_CUSTOM_USE_LAST_VALUE,    GADGET_ID_NONE,
3433     &custom_element.use_last_ce_value,
3434     NULL, NULL,
3435     "use last CE value after change",   "use last CE value after change"
3436   },
3437   {
3438     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
3439     GADGET_ID_CUSTOM_WALK_TO_OBJECT,    GADGET_ID_NONE,
3440     &custom_element_properties[EP_WALK_TO_OBJECT],
3441     NULL, NULL,
3442     NULL,                               "player can dig/collect/push element"
3443   },
3444   {
3445     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3446     GADGET_ID_CUSTOM_INDESTRUCTIBLE,    GADGET_ID_NONE,
3447     &custom_element_properties[EP_INDESTRUCTIBLE],
3448     NULL, NULL,
3449     "indestructible",                   "element is indestructible"
3450   },
3451
3452   // ---------- element settings: configure 2 (custom elements) ---------------
3453
3454   {
3455     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3456     GADGET_ID_CUSTOM_CAN_MOVE,          GADGET_ID_NONE,
3457     &custom_element_properties[EP_CAN_MOVE],
3458     NULL, NULL,
3459     NULL,                               "element can move with some pattern"
3460   },
3461   {
3462     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
3463     GADGET_ID_CUSTOM_CAN_FALL,          GADGET_ID_NONE,
3464     &custom_element_properties[EP_CAN_FALL],
3465     NULL, NULL,
3466     "can fall",                         "element can fall down"
3467   },
3468   {
3469     -1,                                 ED_ELEMENT_SETTINGS_YPOS(8),
3470     GADGET_ID_CUSTOM_CAN_SMASH,         GADGET_ID_CUSTOM_CAN_FALL,
3471     &custom_element_properties[EP_CAN_SMASH],
3472     NULL, " ",
3473     NULL,                               "element can smash other elements"
3474   },
3475   {
3476     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
3477     GADGET_ID_CUSTOM_SLIPPERY,          GADGET_ID_NONE,
3478     &custom_element_properties[EP_SLIPPERY],
3479     NULL, NULL,
3480     NULL,                               "other elements can fall down from it"
3481   },
3482   {
3483     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
3484     GADGET_ID_CUSTOM_DEADLY,            GADGET_ID_NONE,
3485     &custom_element_properties[EP_DEADLY],
3486     NULL, NULL,
3487     NULL,                               "element can kill the player"
3488   },
3489   {
3490     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
3491     GADGET_ID_CUSTOM_CAN_EXPLODE,       GADGET_ID_NONE,
3492     &custom_element_properties[EP_CAN_EXPLODE],
3493     NULL, NULL,
3494     NULL,                               "element can explode"
3495   },
3496   {
3497     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(12),
3498     GADGET_ID_CUSTOM_EXPLODE_FIRE,      GADGET_ID_NONE,
3499     &custom_element_properties[EP_EXPLODES_BY_FIRE],
3500     NULL, NULL,
3501     "by fire",                          "element can explode by fire/explosion"
3502   },
3503   {
3504     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
3505     GADGET_ID_CUSTOM_EXPLODE_SMASH,     GADGET_ID_CUSTOM_EXPLODE_FIRE,
3506     &custom_element_properties[EP_EXPLODES_SMASHED],
3507     NULL, " ",
3508     "smashed",                          "element can explode when smashed"
3509   },
3510   {
3511     -1,                                 ED_ELEMENT_SETTINGS_YPOS(12),
3512     GADGET_ID_CUSTOM_EXPLODE_IMPACT,    GADGET_ID_CUSTOM_EXPLODE_SMASH,
3513     &custom_element_properties[EP_EXPLODES_IMPACT],
3514     NULL, " ",
3515     "impact",                           "element can explode on impact"
3516   },
3517
3518   // ---------- element settings: advanced (custom elements) ------------------
3519
3520   {
3521     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
3522     GADGET_ID_CUSTOM_CAN_CHANGE,        GADGET_ID_NONE,
3523     &custom_element_change.can_change,
3524     NULL, NULL,
3525     "element changes to:",              "change element on specified condition"
3526   },
3527   {
3528     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
3529     GADGET_ID_CHANGE_DELAY,             GADGET_ID_NONE,
3530     &custom_element_change_events[CE_DELAY],
3531     NULL, NULL,
3532     NULL,                               "element changes after delay"
3533   },
3534   {
3535     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
3536     GADGET_ID_CHANGE_BY_DIRECT_ACT,     GADGET_ID_NONE,
3537     &custom_element_change_events[CE_BY_DIRECT_ACTION],
3538     NULL, NULL,
3539     NULL,                               "element changes by direct action"
3540   },
3541   {
3542     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
3543     GADGET_ID_CHANGE_BY_OTHER_ACT,      GADGET_ID_NONE,
3544     &custom_element_change_events[CE_BY_OTHER_ACTION],
3545     NULL, NULL,
3546     NULL,                               "element changes by other element"
3547   },
3548   {
3549     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
3550     GADGET_ID_CHANGE_USE_EXPLOSION,     GADGET_ID_NONE,
3551     &custom_element_change.explode,
3552     NULL, NULL,
3553     "explode instead of change",        "element explodes instead of change"
3554   },
3555   {
3556     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
3557     GADGET_ID_CHANGE_USE_CONTENT,       GADGET_ID_NONE,
3558     &custom_element_change.use_target_content,
3559     NULL, NULL,
3560     "use extended change target:",      "element changes to more elements"
3561   },
3562   {
3563     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(11),
3564     GADGET_ID_CHANGE_ONLY_COMPLETE,     GADGET_ID_NONE,
3565     &custom_element_change.only_if_complete,
3566     NULL, NULL,
3567     "replace all or nothing",           "only replace when all can be changed"
3568   },
3569   {
3570     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(12),
3571     GADGET_ID_CHANGE_USE_RANDOM,        GADGET_ID_NONE,
3572     &custom_element_change.use_random_replace,
3573     NULL, NULL,
3574     NULL,                               "use percentage for random replace"
3575   },
3576   {
3577     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
3578     GADGET_ID_CHANGE_HAS_ACTION,        GADGET_ID_NONE,
3579     &custom_element_change.has_action,
3580     NULL, NULL,
3581     NULL,                               "execute action on specified condition"
3582   },
3583 };
3584
3585 static struct
3586 {
3587   int x, y;
3588   int xoffset, yoffset;
3589   int gadget_id;
3590   int gadget_id_align;
3591   int *value;
3592   int area_xsize, area_ysize;
3593   char *text_left, *text_right, *text_above, *text_below, *infotext;
3594 } drawingarea_info[ED_NUM_DRAWING_AREAS] =
3595 {
3596   // ---------- level playfield content ---------------------------------------
3597
3598   {
3599     0,                                  0,
3600     0,                                  0,
3601     GADGET_ID_DRAWING_LEVEL,            GADGET_ID_NONE,
3602     NULL,
3603     -1, -1,     // these values are not constant, but can change at runtime
3604     NULL, NULL, NULL, NULL,             NULL
3605   },
3606
3607   // ---------- yam yam content -----------------------------------------------
3608
3609   {
3610     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3611     ED_AREA_YAMYAM_CONTENT_XOFF(0),     ED_AREA_YAMYAM_CONTENT_YOFF(0),
3612     GADGET_ID_YAMYAM_CONTENT_0,         GADGET_ID_NONE,
3613     &level.yamyam_content[0].e[0][0],   3, 3,
3614     NULL, NULL, NULL, "1",              NULL
3615   },
3616   {
3617     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3618     ED_AREA_YAMYAM_CONTENT_XOFF(1),     ED_AREA_YAMYAM_CONTENT_YOFF(1),
3619     GADGET_ID_YAMYAM_CONTENT_1,         GADGET_ID_NONE,
3620     &level.yamyam_content[1].e[0][0],   3, 3,
3621     NULL, NULL, NULL, "2",              NULL
3622   },
3623   {
3624     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3625     ED_AREA_YAMYAM_CONTENT_XOFF(2),     ED_AREA_YAMYAM_CONTENT_YOFF(2),
3626     GADGET_ID_YAMYAM_CONTENT_2,         GADGET_ID_NONE,
3627     &level.yamyam_content[2].e[0][0],   3, 3,
3628     NULL, NULL, NULL, "3",              NULL
3629   },
3630   {
3631     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3632     ED_AREA_YAMYAM_CONTENT_XOFF(3),     ED_AREA_YAMYAM_CONTENT_YOFF(3),
3633     GADGET_ID_YAMYAM_CONTENT_3,         GADGET_ID_NONE,
3634     &level.yamyam_content[3].e[0][0],   3, 3,
3635     NULL, NULL, NULL, "4",              NULL
3636   },
3637   {
3638     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3639     ED_AREA_YAMYAM_CONTENT_XOFF(4),     ED_AREA_YAMYAM_CONTENT_YOFF(4),
3640     GADGET_ID_YAMYAM_CONTENT_4,         GADGET_ID_NONE,
3641     &level.yamyam_content[4].e[0][0],   3, 3,
3642     NULL, NULL, NULL, "5",              NULL
3643   },
3644   {
3645     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3646     ED_AREA_YAMYAM_CONTENT_XOFF(5),     ED_AREA_YAMYAM_CONTENT_YOFF(5),
3647     GADGET_ID_YAMYAM_CONTENT_5,         GADGET_ID_NONE,
3648     &level.yamyam_content[5].e[0][0],   3, 3,
3649     NULL, NULL, NULL, "6",              NULL
3650   },
3651   {
3652     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3653     ED_AREA_YAMYAM_CONTENT_XOFF(6),     ED_AREA_YAMYAM_CONTENT_YOFF(6),
3654     GADGET_ID_YAMYAM_CONTENT_6,         GADGET_ID_NONE,
3655     &level.yamyam_content[6].e[0][0],   3, 3,
3656     NULL, NULL, NULL, "7",              NULL
3657   },
3658   {
3659     ED_AREA_YAMYAM_CONTENT_XPOS,        ED_AREA_YAMYAM_CONTENT_YPOS,
3660     ED_AREA_YAMYAM_CONTENT_XOFF(7),     ED_AREA_YAMYAM_CONTENT_YOFF(7),
3661     GADGET_ID_YAMYAM_CONTENT_7,         GADGET_ID_NONE,
3662     &level.yamyam_content[7].e[0][0],   3, 3,
3663     NULL, NULL, NULL, "8",              NULL
3664   },
3665
3666   // ---------- magic ball content --------------------------------------------
3667
3668   {
3669     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3670     ED_AREA_MAGIC_BALL_CONTENT_XOFF(0), ED_AREA_MAGIC_BALL_CONTENT_YOFF(0),
3671     GADGET_ID_MAGIC_BALL_CONTENT_0,     GADGET_ID_NONE,
3672     &level.ball_content[0].e[0][0],     3, 3,
3673     NULL, NULL, NULL, "1",              NULL
3674   },
3675   {
3676     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3677     ED_AREA_MAGIC_BALL_CONTENT_XOFF(1), ED_AREA_MAGIC_BALL_CONTENT_YOFF(1),
3678     GADGET_ID_MAGIC_BALL_CONTENT_1,     GADGET_ID_NONE,
3679     &level.ball_content[1].e[0][0],     3, 3,
3680     NULL, NULL, NULL, "2",              NULL
3681   },
3682   {
3683     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3684     ED_AREA_MAGIC_BALL_CONTENT_XOFF(2), ED_AREA_MAGIC_BALL_CONTENT_YOFF(2),
3685     GADGET_ID_MAGIC_BALL_CONTENT_2,     GADGET_ID_NONE,
3686     &level.ball_content[2].e[0][0],     3, 3,
3687     NULL, NULL, NULL, "3",              NULL
3688   },
3689   {
3690     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3691     ED_AREA_MAGIC_BALL_CONTENT_XOFF(3), ED_AREA_MAGIC_BALL_CONTENT_YOFF(3),
3692     GADGET_ID_MAGIC_BALL_CONTENT_3,     GADGET_ID_NONE,
3693     &level.ball_content[3].e[0][0],     3, 3,
3694     NULL, NULL, NULL, "4",              NULL
3695   },
3696   {
3697     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3698     ED_AREA_MAGIC_BALL_CONTENT_XOFF(4), ED_AREA_MAGIC_BALL_CONTENT_YOFF(4),
3699     GADGET_ID_MAGIC_BALL_CONTENT_4,     GADGET_ID_NONE,
3700     &level.ball_content[4].e[0][0],     3, 3,
3701     NULL, NULL, NULL, "5",              NULL
3702   },
3703   {
3704     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3705     ED_AREA_MAGIC_BALL_CONTENT_XOFF(5), ED_AREA_MAGIC_BALL_CONTENT_YOFF(5),
3706     GADGET_ID_MAGIC_BALL_CONTENT_5,     GADGET_ID_NONE,
3707     &level.ball_content[5].e[0][0],     3, 3,
3708     NULL, NULL, NULL, "6",              NULL
3709   },
3710   {
3711     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3712     ED_AREA_MAGIC_BALL_CONTENT_XOFF(6), ED_AREA_MAGIC_BALL_CONTENT_YOFF(6),
3713     GADGET_ID_MAGIC_BALL_CONTENT_6,     GADGET_ID_NONE,
3714     &level.ball_content[6].e[0][0],     3, 3,
3715     NULL, NULL, NULL, "7",              NULL
3716   },
3717   {
3718     ED_AREA_MAGIC_BALL_CONTENT_XPOS,    ED_AREA_MAGIC_BALL_CONTENT_YPOS,
3719     ED_AREA_MAGIC_BALL_CONTENT_XOFF(7), ED_AREA_MAGIC_BALL_CONTENT_YOFF(7),
3720     GADGET_ID_MAGIC_BALL_CONTENT_7,     GADGET_ID_NONE,
3721     &level.ball_content[7].e[0][0],     3, 3,
3722     NULL, NULL, NULL, "8",              NULL
3723   },
3724
3725   // ---------- android content -----------------------------------------------
3726
3727   {
3728     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(6),
3729     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3730     GADGET_ID_ANDROID_CONTENT,          GADGET_ID_NONE,
3731     &level.android_clone_element[0],    MAX_ANDROID_ELEMENTS, 1,
3732     NULL, NULL, "elements:", NULL,      "elements android can clone"
3733   },
3734
3735   // ---------- amoeba content ------------------------------------------------
3736
3737   {
3738     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
3739     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3740     GADGET_ID_AMOEBA_CONTENT,           GADGET_ID_NONE,
3741     &level.amoeba_content,              1, 1,
3742     "content:", NULL, NULL, NULL,       "amoeba content"
3743   },
3744
3745   // ---------- level start element -------------------------------------------
3746
3747   {
3748     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(10),
3749     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3750     GADGET_ID_START_ELEMENT,            GADGET_ID_USE_START_ELEMENT,
3751     &level.start_element[0],            1, 1,
3752     NULL, NULL, NULL, NULL,             "level start element"
3753   },
3754
3755   // ---------- player artwork element ----------------------------------------
3756
3757   {
3758     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(11),
3759     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3760     GADGET_ID_ARTWORK_ELEMENT,          GADGET_ID_USE_ARTWORK_ELEMENT,
3761     &level.artwork_element[0],          1, 1,
3762     NULL, NULL, NULL, NULL,             "element for player artwork"
3763   },
3764
3765   // ---------- player explosion element --------------------------------------
3766
3767   {
3768     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(12),
3769     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3770     GADGET_ID_EXPLOSION_ELEMENT,        GADGET_ID_USE_EXPLOSION_ELEMENT,
3771     &level.explosion_element[0],        1, 1,
3772     NULL, NULL, NULL, NULL,             "element for player explosion"
3773   },
3774
3775   // ---------- player initial inventory --------------------------------------
3776
3777   {
3778     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3779     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3780     GADGET_ID_INVENTORY_CONTENT,        GADGET_ID_USE_INITIAL_INVENTORY,
3781     &level.initial_inventory_content[0][0], MAX_INITIAL_INVENTORY_SIZE, 1,
3782     NULL, NULL, NULL, NULL,             "content for initial inventory"
3783   },
3784
3785   // ---------- gray ball content -----------------------------------------
3786
3787   {
3788     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
3789     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3790     GADGET_ID_MM_BALL_CONTENT,          GADGET_ID_NONE,
3791     &level.mm_ball_content[0],          MAX_MM_BALL_CONTENTS, 1,
3792     "content:", NULL, NULL, NULL,       "content for gray ball"
3793   },
3794
3795   // ---------- element settings: configure 1 (custom elements) ---------------
3796
3797   // ---------- custom graphic ------------------------------------------------
3798
3799   {
3800     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3801     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3802     GADGET_ID_CUSTOM_GRAPHIC,           GADGET_ID_CUSTOM_USE_GRAPHIC,
3803     &custom_element.gfx_element_initial,1, 1,
3804     NULL, NULL, NULL, NULL,             "custom graphic element"
3805   },
3806
3807   // ---------- element settings: configure 2 (custom elements) ---------------
3808
3809   // ---------- custom content (when exploding) -------------------------------
3810
3811   {
3812     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(11),
3813     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
3814     GADGET_ID_CUSTOM_CONTENT,           GADGET_ID_NONE, // align three rows
3815     &custom_element.content.e[0][0],    3, 3,
3816     "content:", NULL, NULL, NULL,       NULL
3817   },
3818
3819   // ---------- custom enter and leave element (when moving) ------------------
3820
3821   {
3822     ED_AREA_1X1_SETTINGS_XPOS(1),       ED_AREA_1X1_SETTINGS_YPOS(3),
3823     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3824     GADGET_ID_CUSTOM_MOVE_ENTER,        GADGET_ID_NONE,
3825     &custom_element.move_enter_element, 1, 1,
3826     "can dig:", " ", NULL, NULL,        "element that can be digged/collected"
3827   },
3828   {
3829     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(3),
3830     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3831     GADGET_ID_CUSTOM_MOVE_LEAVE,        GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
3832     &custom_element.move_leave_element, 1, 1,
3833     NULL, NULL, NULL, NULL,             "element that will be left behind"
3834   },
3835
3836   // ---------- element settings: advanced (custom elements) ------------------
3837
3838   // ---------- custom change target ------------------------------------------
3839
3840   {
3841     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3842     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3843     GADGET_ID_CUSTOM_CHANGE_TARGET,     GADGET_ID_CUSTOM_CAN_CHANGE,
3844     &custom_element_change.target_element, 1, 1,
3845     NULL, "after/when:", NULL, NULL,    "new target element after change"
3846   },
3847
3848   // ---------- custom change content (extended change target) ----------------
3849
3850   {
3851     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(9),
3852     0,                                  ED_AREA_3X3_SETTINGS_YOFF,
3853     GADGET_ID_CUSTOM_CHANGE_CONTENT,    GADGET_ID_NONE, // align three rows
3854     &custom_element_change.target_content.e[0][0], 3, 3,
3855     NULL, NULL, NULL, NULL,             "new extended elements after change"
3856   },
3857
3858   // ---------- custom change trigger (element causing change) ----------------
3859
3860   {
3861     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(5),
3862     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3863     GADGET_ID_CUSTOM_CHANGE_TRIGGER,    GADGET_ID_CHANGE_OTHER_ACTION,
3864     &custom_element_change.initial_trigger_element, 1, 1,
3865     NULL, NULL, NULL, NULL,             "other element triggering change"
3866   },
3867
3868   // ---------- custom change action (element used for action) ----------------
3869
3870   {
3871     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(13),
3872     0,                                  ED_AREA_1X1_SETTINGS_YOFF,
3873     GADGET_ID_CUSTOM_CHANGE_ACTION,     GADGET_ID_ACTION_ARG,
3874     &custom_element_change.action_element, 1, 1,
3875     NULL, NULL, NULL, NULL,             "element used as action parameter"
3876   },
3877
3878   // ---------- group element content -----------------------------------------
3879
3880   {
3881     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
3882     ED_AREA_1X1_SETTINGS_XOFF,          ED_AREA_1X1_SETTINGS_YOFF,
3883     GADGET_ID_GROUP_CONTENT,            GADGET_ID_NONE,
3884     &group_element_info.element[0],     MAX_ELEMENTS_IN_GROUP, 1,
3885     "content:", NULL, NULL, NULL,       NULL
3886   },
3887
3888   // ---------- random background (for random painting) -----------------------
3889
3890   {
3891     -1,                                 ED_AREA_1X1_LSETTINGS_YPOS(1),
3892     0,                                  ED_AREA_1X1_LSETTINGS_YOFF,
3893     GADGET_ID_RANDOM_BACKGROUND,        GADGET_ID_RANDOM_RESTRICTED,
3894     &random_placement_background_element, 1, 1,
3895     NULL, NULL, NULL, NULL,             "random placement background"
3896   },
3897 };
3898
3899
3900 // ----------------------------------------------------------------------------
3901 // some internally used variables
3902 // ----------------------------------------------------------------------------
3903
3904 // maximal size of level editor drawing area
3905 static int MAX_ED_FIELDX, MAX_ED_FIELDY;
3906
3907 // actual size of level editor drawing area
3908 static int ed_fieldx, ed_fieldy;
3909
3910 // actual position of level editor drawing area in level playfield
3911 static int level_xpos = -1, level_ypos = -1;
3912
3913 // actual tile size used to display playfield drawing area
3914 static int ed_tilesize = DEFAULT_EDITOR_TILESIZE;
3915 static int ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
3916
3917 #define IN_ED_FIELD(x,y)        IN_FIELD(x, y, ed_fieldx, ed_fieldy)
3918
3919 // drawing elements on the three mouse buttons
3920 static int new_element1 = EL_WALL;
3921 static int new_element2 = EL_EMPTY;
3922 static int new_element3 = EL_SAND;
3923
3924 #define IS_VALID_BUTTON(button) (button >= 1 && button <= 3)
3925 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
3926                                 (button) == 2 ? new_element2 : \
3927                                 (button) == 3 ? new_element3 : EL_EMPTY)
3928
3929 #define BUTTON_TILE_SIZE(x)     ((x) >= TILESIZE ? TILESIZE : MINI_TILESIZE)
3930
3931 static int use_permanent_palette = TRUE;
3932
3933 #define PX              (use_permanent_palette ? DX : SX)
3934 #define PY              (use_permanent_palette ? DY : SY)
3935 #define PXSIZE          (use_permanent_palette ? DXSIZE : SXSIZE)
3936 #define PYSIZE          (use_permanent_palette ? DYSIZE : SYSIZE)
3937
3938 // forward declaration for internal use
3939 static void CopyBrushToCursor(int, int);
3940 static void DeleteBrushFromCursor(void);
3941 static void ModifyEditorCounterValue(int, int);
3942 static void ModifyEditorCounterLimits(int, int, int);
3943 static void ModifyEditorSelectboxValue(int, int);
3944 static void ModifyEditorSelectboxOptions(int, struct ValueTextInfo *);
3945 static void ModifyEditorDrawingArea(int, int, int);
3946 static void ModifyEditorElementList(void);
3947 static void AdjustElementListScrollbar(void);
3948 static void RedrawDrawingElements(void);
3949 static void DrawDrawingWindowExt(boolean);
3950 static void DrawDrawingWindow(void);
3951 static void DrawLevelInfoWindow(void);
3952 static void DrawPropertiesWindow(void);
3953 static void DrawPaletteWindow(void);
3954 static void UpdateCustomElementGraphicGadgets(void);
3955 static boolean checkPropertiesConfig(int);
3956 static void SetAutomaticNumberOfGemsNeeded(void);
3957 static void ClearEditorGadgetInfoText(void);
3958 static void CopyLevelToUndoBuffer(int);
3959 static void HandleDrawingAreas(struct GadgetInfo *);
3960 static void HandleCounterButtons(struct GadgetInfo *);
3961 static void HandleTextInputGadgets(struct GadgetInfo *);
3962 static void HandleTextAreaGadgets(struct GadgetInfo *);
3963 static void HandleSelectboxGadgets(struct GadgetInfo *);
3964 static void HandleTextbuttonGadgets(struct GadgetInfo *);
3965 static void HandleGraphicbuttonGadgets(struct GadgetInfo *);
3966 static void HandleRadiobuttons(struct GadgetInfo *);
3967 static void HandleCheckbuttons(struct GadgetInfo *);
3968 static void HandleControlButtons(struct GadgetInfo *);
3969 static void HandleDrawingAreaInfo(struct GadgetInfo *);
3970 static void PrintEditorGadgetInfoText(struct GadgetInfo *);
3971 static boolean AskToCopyAndModifyLevelTemplate(void);
3972 static boolean getDrawModeHiRes(void);
3973 static int getTabulatorBarWidth(void);
3974 static int getTabulatorBarHeight(void);
3975 static Pixel getTabulatorBarColor(void);
3976 static int numHiresTiles(int);
3977
3978 static int num_editor_gadgets = 0;      // dynamically determined
3979
3980 static struct GadgetInfo **level_editor_gadget = NULL;
3981 static int *right_gadget_border = NULL;
3982
3983 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
3984 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
3985 static boolean draw_with_brush = FALSE;
3986 static int properties_element = 0;
3987
3988 static short TileBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3989 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3990 static short IntelliDrawBuffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3991 static int undo_buffer_position = 0;
3992 static int undo_buffer_steps = 0;
3993 static int redo_buffer_steps = 0;
3994
3995 static int edit_mode;
3996 static int edit_mode_levelinfo;
3997 static int edit_mode_properties;
3998
3999 static int element_shift = 0;
4000
4001 static int editor_el_players[] =
4002 {
4003   EL_PLAYER_1,
4004   EL_PLAYER_2,
4005   EL_PLAYER_3,
4006   EL_PLAYER_4
4007 };
4008 static int *editor_el_players_ptr = editor_el_players;
4009 static int num_editor_el_players = ARRAY_SIZE(editor_el_players);
4010
4011 static int editor_hl_boulderdash[] =
4012 {
4013   EL_INTERNAL_CASCADE_BD_ACTIVE,
4014   EL_CHAR('B'),
4015   EL_CHAR('D'),
4016   EL_EMPTY,
4017 };
4018
4019 static int editor_el_boulderdash[] =
4020 {
4021   EL_EMPTY,
4022   EL_SAND,
4023   EL_BD_ROCK,
4024   EL_BD_DIAMOND,
4025
4026   EL_STEELWALL,
4027   EL_BD_WALL,
4028   EL_BD_EXPANDABLE_WALL,
4029   EL_BD_MAGIC_WALL,
4030
4031   EL_BD_AMOEBA,
4032   EL_BD_BUTTERFLY_UP,
4033   EL_BD_FIREFLY_UP,
4034   EL_EXIT_CLOSED,
4035
4036   EL_BD_BUTTERFLY_LEFT,
4037   EL_BD_FIREFLY_LEFT,
4038   EL_BD_BUTTERFLY_RIGHT,
4039   EL_BD_FIREFLY_RIGHT,
4040
4041   EL_EMPTY,
4042   EL_BD_BUTTERFLY_DOWN,
4043   EL_BD_FIREFLY_DOWN,
4044   EL_EXIT_OPEN,
4045 };
4046 static int *editor_hl_boulderdash_ptr = editor_hl_boulderdash;
4047 static int *editor_el_boulderdash_ptr = editor_el_boulderdash;
4048 static int num_editor_hl_boulderdash = ARRAY_SIZE(editor_hl_boulderdash);
4049 static int num_editor_el_boulderdash = ARRAY_SIZE(editor_el_boulderdash);
4050
4051 static int editor_hl_emerald_mine[] =
4052 {
4053   EL_INTERNAL_CASCADE_EM_ACTIVE,
4054   EL_CHAR('E'),
4055   EL_CHAR('M'),
4056   EL_EMPTY,
4057 };
4058
4059 static int editor_el_emerald_mine[] =
4060 {
4061   EL_SAND,
4062   EL_ROCK,
4063   EL_QUICKSAND_EMPTY,
4064   EL_QUICKSAND_FULL,
4065
4066   EL_STEELWALL,
4067   EL_WALL,
4068   EL_WALL_SLIPPERY,
4069   EL_MAGIC_WALL,
4070
4071   EL_EMERALD,
4072   EL_DIAMOND,
4073   EL_NUT,
4074   EL_BOMB,
4075
4076   EL_EM_DYNAMITE,
4077   EL_EM_DYNAMITE_ACTIVE,
4078   EL_EM_EXIT_CLOSED,
4079   EL_EM_EXIT_OPEN,
4080
4081   EL_YAMYAM_UP,
4082   EL_BUG_UP,
4083   EL_SPACESHIP_UP,
4084   EL_ROBOT,
4085
4086   EL_BUG_LEFT,
4087   EL_SPACESHIP_LEFT,
4088   EL_BUG_RIGHT,
4089   EL_SPACESHIP_RIGHT,
4090
4091   EL_ROBOT_WHEEL,
4092   EL_BUG_DOWN,
4093   EL_SPACESHIP_DOWN,
4094   EL_INVISIBLE_WALL,
4095
4096   EL_ACID_POOL_TOPLEFT,
4097   EL_ACID,
4098   EL_ACID_POOL_TOPRIGHT,
4099   EL_AMOEBA_DROP,
4100
4101   EL_ACID_POOL_BOTTOMLEFT,
4102   EL_ACID_POOL_BOTTOM,
4103   EL_ACID_POOL_BOTTOMRIGHT,
4104   EL_AMOEBA_WET,
4105
4106   EL_EM_KEY_1,
4107   EL_EM_KEY_2,
4108   EL_EM_KEY_3,
4109   EL_EM_KEY_4,
4110
4111   EL_EM_GATE_1,
4112   EL_EM_GATE_2,
4113   EL_EM_GATE_3,
4114   EL_EM_GATE_4,
4115
4116   EL_EM_GATE_1_GRAY,
4117   EL_EM_GATE_2_GRAY,
4118   EL_EM_GATE_3_GRAY,
4119   EL_EM_GATE_4_GRAY,
4120 };
4121 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
4122 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
4123 static int num_editor_hl_emerald_mine = ARRAY_SIZE(editor_hl_emerald_mine);
4124 static int num_editor_el_emerald_mine = ARRAY_SIZE(editor_el_emerald_mine);
4125
4126 static int editor_hl_emerald_mine_club[] =
4127 {
4128   EL_INTERNAL_CASCADE_EMC_ACTIVE,
4129   EL_CHAR('E'),
4130   EL_CHAR('M'),
4131   EL_CHAR('C'),
4132 };
4133
4134 static int editor_el_emerald_mine_club[] =
4135 {
4136   EL_EMC_KEY_5,
4137   EL_EMC_KEY_6,
4138   EL_EMC_KEY_7,
4139   EL_EMC_KEY_8,
4140
4141   EL_EMC_GATE_5,
4142   EL_EMC_GATE_6,
4143   EL_EMC_GATE_7,
4144   EL_EMC_GATE_8,
4145
4146   EL_EMC_GATE_5_GRAY,
4147   EL_EMC_GATE_6_GRAY,
4148   EL_EMC_GATE_7_GRAY,
4149   EL_EMC_GATE_8_GRAY,
4150
4151   EL_EMC_STEELWALL_1,
4152   EL_EMC_STEELWALL_2,
4153   EL_EMC_STEELWALL_3,
4154   EL_EMC_STEELWALL_4,
4155
4156   EL_EMC_WALL_13,
4157   EL_EMC_WALL_14,
4158   EL_EMC_WALL_15,
4159   EL_EMC_WALL_16,
4160
4161   EL_EMC_WALL_SLIPPERY_1,
4162   EL_EMC_WALL_SLIPPERY_2,
4163   EL_EMC_WALL_SLIPPERY_3,
4164   EL_EMC_WALL_SLIPPERY_4,
4165
4166   EL_EMC_WALL_1,
4167   EL_EMC_WALL_2,
4168   EL_EMC_WALL_3,
4169   EL_EMC_WALL_4,
4170
4171   EL_EMC_WALL_5,
4172   EL_EMC_WALL_6,
4173   EL_EMC_WALL_7,
4174   EL_EMC_WALL_8,
4175
4176   EL_EMC_WALL_9,
4177   EL_EMC_WALL_10,
4178   EL_EMC_WALL_11,
4179   EL_EMC_WALL_12,
4180
4181   EL_EMC_GRASS,
4182   EL_EMC_FAKE_GRASS,
4183   EL_EMC_PLANT,
4184   EL_EMC_DRIPPER,
4185
4186   EL_EMC_MAGIC_BALL,
4187   EL_EMC_MAGIC_BALL_SWITCH,
4188   EL_EMC_LENSES,
4189   EL_EMC_MAGNIFIER,
4190
4191   EL_SPRING_LEFT,
4192   EL_SPRING,
4193   EL_SPRING_RIGHT,
4194   EL_EMC_SPRING_BUMPER,
4195
4196   EL_BALLOON,
4197   EL_YAMYAM_UP,
4198   EL_BALLOON_SWITCH_UP,
4199   EL_BALLOON_SWITCH_ANY,
4200
4201   EL_YAMYAM_LEFT,
4202   EL_BALLOON_SWITCH_LEFT,
4203   EL_YAMYAM_RIGHT,
4204   EL_BALLOON_SWITCH_RIGHT,
4205
4206   EL_EMC_ANDROID,
4207   EL_YAMYAM_DOWN,
4208   EL_BALLOON_SWITCH_DOWN,
4209   EL_BALLOON_SWITCH_NONE,
4210 };
4211 static int *editor_hl_emerald_mine_club_ptr = editor_hl_emerald_mine_club;
4212 static int *editor_el_emerald_mine_club_ptr = editor_el_emerald_mine_club;
4213 static int num_editor_hl_emerald_mine_club = ARRAY_SIZE(editor_hl_emerald_mine_club);
4214 static int num_editor_el_emerald_mine_club = ARRAY_SIZE(editor_el_emerald_mine_club);
4215
4216 static int editor_hl_rnd[] =
4217 {
4218   EL_INTERNAL_CASCADE_RND_ACTIVE,
4219   EL_CHAR('R'),
4220   EL_CHAR('N'),
4221   EL_CHAR('D'),
4222 };
4223
4224 static int editor_el_rnd[] =
4225 {
4226   EL_DYNAMITE,                  // RND
4227   EL_DYNAMITE_ACTIVE,           // RND
4228   EL_EMPTY,
4229   EL_EMPTY,
4230
4231   EL_KEY_1,
4232   EL_KEY_2,
4233   EL_KEY_3,
4234   EL_KEY_4,
4235
4236   EL_GATE_1,
4237   EL_GATE_2,
4238   EL_GATE_3,
4239   EL_GATE_4,
4240
4241   EL_GATE_1_GRAY,
4242   EL_GATE_2_GRAY,
4243   EL_GATE_3_GRAY,
4244   EL_GATE_4_GRAY,
4245
4246   EL_ARROW_LEFT,
4247   EL_ARROW_RIGHT,
4248   EL_ARROW_UP,
4249   EL_ARROW_DOWN,
4250
4251   EL_AMOEBA_DEAD,
4252   EL_AMOEBA_DRY,
4253   EL_AMOEBA_FULL,
4254   EL_GAME_OF_LIFE,
4255
4256   EL_EMERALD_YELLOW,
4257   EL_EMERALD_RED,
4258   EL_EMERALD_PURPLE,
4259   EL_BIOMAZE,
4260
4261   EL_WALL_EMERALD_YELLOW,
4262   EL_WALL_EMERALD_RED,
4263   EL_WALL_EMERALD_PURPLE,
4264   EL_WALL_BD_DIAMOND,
4265
4266   EL_SPEED_PILL,
4267   EL_PACMAN_UP,
4268   EL_TIME_ORB_FULL,
4269   EL_TIME_ORB_EMPTY,
4270
4271   EL_PACMAN_LEFT,
4272   EL_DARK_YAMYAM,
4273   EL_PACMAN_RIGHT,
4274   EL_YAMYAM,                    // RND
4275
4276   EL_BLACK_ORB,
4277   EL_PACMAN_DOWN,
4278   EL_LAMP,
4279   EL_LAMP_ACTIVE,
4280
4281   EL_DYNABOMB_INCREASE_NUMBER,
4282   EL_DYNABOMB_INCREASE_SIZE,
4283   EL_DYNABOMB_INCREASE_POWER,
4284   EL_STONEBLOCK,
4285
4286   EL_MOLE,
4287   EL_PENGUIN,
4288   EL_PIG,
4289   EL_DRAGON,
4290
4291   EL_BUG,
4292   EL_MOLE_UP,
4293   EL_BD_BUTTERFLY,
4294   EL_BD_FIREFLY,
4295
4296   EL_MOLE_LEFT,
4297   EL_SATELLITE,
4298   EL_MOLE_RIGHT,
4299   EL_PACMAN,
4300
4301   EL_SPACESHIP,
4302   EL_MOLE_DOWN,
4303   EL_INVISIBLE_STEELWALL,
4304   EL_INVISIBLE_WALL,
4305
4306   EL_EXPANDABLE_WALL,
4307   EL_EXPANDABLE_WALL_HORIZONTAL,
4308   EL_EXPANDABLE_WALL_VERTICAL,
4309   EL_EXPANDABLE_WALL_ANY,
4310 };
4311 static int *editor_hl_rnd_ptr = editor_hl_rnd;
4312 static int *editor_el_rnd_ptr = editor_el_rnd;
4313 static int num_editor_hl_rnd = ARRAY_SIZE(editor_hl_rnd);
4314 static int num_editor_el_rnd = ARRAY_SIZE(editor_el_rnd);
4315
4316 static int editor_hl_sokoban[] =
4317 {
4318   EL_INTERNAL_CASCADE_SB_ACTIVE,
4319   EL_CHAR('S'),
4320   EL_CHAR('B'),
4321   EL_EMPTY,
4322 };
4323
4324 static int editor_el_sokoban[] =
4325 {
4326   EL_SOKOBAN_OBJECT,
4327   EL_SOKOBAN_FIELD_EMPTY,
4328   EL_SOKOBAN_FIELD_FULL,
4329   EL_SOKOBAN_FIELD_PLAYER,
4330 };
4331 static int *editor_hl_sokoban_ptr = editor_hl_sokoban;
4332 static int *editor_el_sokoban_ptr = editor_el_sokoban;
4333 static int num_editor_hl_sokoban = ARRAY_SIZE(editor_hl_sokoban);
4334 static int num_editor_el_sokoban = ARRAY_SIZE(editor_el_sokoban);
4335
4336 static int editor_hl_supaplex[] =
4337 {
4338   EL_INTERNAL_CASCADE_SP_ACTIVE,
4339   EL_CHAR('S'),
4340   EL_CHAR('P'),
4341   EL_EMPTY,
4342 };
4343
4344 static int editor_el_supaplex[] =
4345 {
4346   EL_SP_MURPHY,
4347   EL_EMPTY,
4348   EL_SP_BASE,
4349   EL_SP_BUGGY_BASE,
4350
4351   EL_SP_INFOTRON,
4352   EL_SP_ZONK,
4353   EL_SP_SNIKSNAK,
4354   EL_SP_ELECTRON,
4355
4356   EL_SP_DISK_RED,
4357   EL_SP_DISK_ORANGE,
4358   EL_SP_DISK_YELLOW,
4359   EL_SP_TERMINAL,
4360
4361   EL_SP_EXIT_CLOSED,
4362   EL_SP_PORT_HORIZONTAL,
4363   EL_SP_PORT_VERTICAL,
4364   EL_SP_PORT_ANY,
4365
4366   EL_SP_PORT_LEFT,
4367   EL_SP_PORT_RIGHT,
4368   EL_SP_PORT_UP,
4369   EL_SP_PORT_DOWN,
4370
4371   EL_SP_GRAVITY_PORT_LEFT,
4372   EL_SP_GRAVITY_PORT_RIGHT,
4373   EL_SP_GRAVITY_PORT_UP,
4374   EL_SP_GRAVITY_PORT_DOWN,
4375
4376   EL_SP_GRAVITY_ON_PORT_LEFT,
4377   EL_SP_GRAVITY_ON_PORT_RIGHT,
4378   EL_SP_GRAVITY_ON_PORT_UP,
4379   EL_SP_GRAVITY_ON_PORT_DOWN,
4380
4381   EL_SP_GRAVITY_OFF_PORT_LEFT,
4382   EL_SP_GRAVITY_OFF_PORT_RIGHT,
4383   EL_SP_GRAVITY_OFF_PORT_UP,
4384   EL_SP_GRAVITY_OFF_PORT_DOWN,
4385
4386   EL_SP_HARDWARE_GRAY,
4387   EL_SP_HARDWARE_GREEN,
4388   EL_SP_HARDWARE_BLUE,
4389   EL_SP_HARDWARE_RED,
4390
4391   EL_SP_HARDWARE_BASE_1,
4392   EL_SP_HARDWARE_BASE_2,
4393   EL_SP_HARDWARE_BASE_3,
4394   EL_SP_HARDWARE_BASE_4,
4395
4396   EL_SP_HARDWARE_BASE_5,
4397   EL_SP_HARDWARE_BASE_6,
4398   EL_SP_HARDWARE_YELLOW,
4399   EL_SP_CHIP_TOP,
4400
4401   EL_SP_CHIP_SINGLE,
4402   EL_SP_CHIP_LEFT,
4403   EL_SP_CHIP_RIGHT,
4404   EL_SP_CHIP_BOTTOM,
4405 };
4406 static int *editor_hl_supaplex_ptr = editor_hl_supaplex;
4407 static int *editor_el_supaplex_ptr = editor_el_supaplex;
4408 static int num_editor_hl_supaplex = ARRAY_SIZE(editor_hl_supaplex);
4409 static int num_editor_el_supaplex = ARRAY_SIZE(editor_el_supaplex);
4410
4411 static int editor_hl_diamond_caves[] =
4412 {
4413   EL_INTERNAL_CASCADE_DC_ACTIVE,
4414   EL_CHAR('D'),
4415   EL_CHAR('C'),
4416   EL_CHAR('2'),
4417 };
4418
4419 static int editor_el_diamond_caves[] =
4420 {
4421   EL_EM_STEEL_EXIT_CLOSED,      // DC2
4422   EL_EM_STEEL_EXIT_OPEN,        // DC2
4423   EL_WALL_EMERALD,              // DC2
4424   EL_WALL_DIAMOND,              // DC2
4425
4426   EL_PEARL,
4427   EL_CRYSTAL,
4428   EL_WALL_PEARL,
4429   EL_WALL_CRYSTAL,
4430
4431   EL_CONVEYOR_BELT_1_LEFT,
4432   EL_CONVEYOR_BELT_1_MIDDLE,
4433   EL_CONVEYOR_BELT_1_RIGHT,
4434   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
4435
4436   EL_CONVEYOR_BELT_2_LEFT,
4437   EL_CONVEYOR_BELT_2_MIDDLE,
4438   EL_CONVEYOR_BELT_2_RIGHT,
4439   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
4440
4441   EL_CONVEYOR_BELT_3_LEFT,
4442   EL_CONVEYOR_BELT_3_MIDDLE,
4443   EL_CONVEYOR_BELT_3_RIGHT,
4444   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
4445
4446   EL_CONVEYOR_BELT_4_LEFT,
4447   EL_CONVEYOR_BELT_4_MIDDLE,
4448   EL_CONVEYOR_BELT_4_RIGHT,
4449   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
4450
4451   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
4452   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
4453   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
4454   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
4455
4456   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
4457   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
4458   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
4459   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
4460
4461   EL_TIMEGATE_CLOSED,
4462   EL_TIMEGATE_OPEN,
4463   EL_TIMEGATE_SWITCH,
4464   EL_DC_TIMEGATE_SWITCH,
4465
4466   EL_SWITCHGATE_CLOSED,
4467   EL_SWITCHGATE_OPEN,
4468   EL_SWITCHGATE_SWITCH_UP,
4469   EL_SWITCHGATE_SWITCH_DOWN,
4470
4471   EL_LIGHT_SWITCH,
4472   EL_LIGHT_SWITCH_ACTIVE,
4473   EL_DC_SWITCHGATE_SWITCH_UP,
4474   EL_DC_SWITCHGATE_SWITCH_DOWN,
4475
4476   EL_STEEL_EXIT_CLOSED,
4477   EL_STEEL_EXIT_OPEN,
4478   EL_STEELWALL_SLIPPERY,
4479   EL_INVISIBLE_SAND,
4480
4481   EL_QUICKSAND_FAST_EMPTY,
4482   EL_QUICKSAND_FAST_FULL,
4483   EL_LANDMINE,
4484   EL_DC_LANDMINE,
4485
4486   EL_SHIELD_NORMAL,
4487   EL_SHIELD_DEADLY,
4488   EL_EXTRA_TIME,
4489   EL_DC_MAGIC_WALL,
4490
4491   EL_ENVELOPE_1,
4492   EL_ENVELOPE_2,
4493   EL_ENVELOPE_3,
4494   EL_ENVELOPE_4,
4495
4496   EL_SIGN_RADIOACTIVITY,
4497   EL_SIGN_WHEELCHAIR,
4498   EL_SIGN_PARKING,
4499   EL_SIGN_NO_ENTRY,
4500
4501   EL_SIGN_GIVE_WAY,
4502   EL_SIGN_ENTRY_FORBIDDEN,
4503   EL_SIGN_EMERGENCY_EXIT,
4504   EL_SIGN_YIN_YANG,
4505
4506 #if 0
4507   EL_SIGN_SPERMS,
4508   EL_SIGN_BULLET,
4509   EL_SIGN_HEART,
4510   EL_SIGN_CROSS,
4511
4512   EL_SIGN_FRANKIE,
4513   EL_EMPTY,
4514   EL_EMPTY,
4515   EL_EMPTY,
4516
4517   EL_SPERMS,
4518   EL_BULLET,
4519   EL_HEART,
4520   EL_CROSS,
4521
4522   EL_FRANKIE,
4523   EL_EMPTY,
4524   EL_EMPTY,
4525   EL_EMPTY,
4526 #endif
4527
4528   EL_DC_STEELWALL_2_SINGLE,
4529   EL_DC_STEELWALL_2_TOP,
4530   EL_SIGN_EXCLAMATION,
4531   EL_SIGN_STOP,
4532
4533   EL_DC_STEELWALL_2_LEFT,
4534   EL_DC_STEELWALL_2_MIDDLE,
4535   EL_DC_STEELWALL_2_HORIZONTAL,
4536   EL_DC_STEELWALL_2_RIGHT,
4537
4538   EL_DC_STEELWALL_1_TOPLEFT,
4539   EL_DC_STEELWALL_2_VERTICAL,
4540   EL_DC_STEELWALL_1_TOPRIGHT,
4541   EL_DC_GATE_WHITE,
4542
4543   EL_DC_STEELWALL_1_VERTICAL,
4544   EL_DC_STEELWALL_2_BOTTOM,
4545   EL_DC_KEY_WHITE,
4546   EL_DC_GATE_WHITE_GRAY,
4547
4548   EL_DC_STEELWALL_1_BOTTOMLEFT,
4549   EL_DC_STEELWALL_1_HORIZONTAL,
4550   EL_DC_STEELWALL_1_BOTTOMRIGHT,
4551   EL_DC_GATE_FAKE_GRAY,
4552
4553   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
4554   EL_DC_STEELWALL_1_BOTTOM,
4555   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
4556   EL_EXPANDABLE_STEELWALL_HORIZONTAL,
4557
4558   EL_DC_STEELWALL_1_RIGHT,
4559   EL_EMPTY,
4560   EL_DC_STEELWALL_1_LEFT,
4561   EL_EXPANDABLE_STEELWALL_VERTICAL,
4562
4563   EL_DC_STEELWALL_1_TOPRIGHT_2,
4564   EL_DC_STEELWALL_1_TOP,
4565   EL_DC_STEELWALL_1_TOPLEFT_2,
4566   EL_EXPANDABLE_STEELWALL_ANY,
4567 };
4568 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
4569 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
4570 static int num_editor_hl_diamond_caves = ARRAY_SIZE(editor_hl_diamond_caves);
4571 static int num_editor_el_diamond_caves = ARRAY_SIZE(editor_el_diamond_caves);
4572
4573 static int editor_hl_dx_boulderdash[] =
4574 {
4575   EL_INTERNAL_CASCADE_DX_ACTIVE,
4576   EL_CHAR('D'),
4577   EL_CHAR('X'),
4578   EL_EMPTY,
4579 };
4580
4581 static int editor_el_dx_boulderdash[] =
4582 {
4583   EL_EMPTY,
4584   EL_TUBE_RIGHT_DOWN,
4585   EL_TUBE_HORIZONTAL_DOWN,
4586   EL_TUBE_LEFT_DOWN,
4587
4588   EL_TUBE_HORIZONTAL,
4589   EL_TUBE_VERTICAL_RIGHT,
4590   EL_TUBE_ANY,
4591   EL_TUBE_VERTICAL_LEFT,
4592
4593   EL_TUBE_VERTICAL,
4594   EL_TUBE_RIGHT_UP,
4595   EL_TUBE_HORIZONTAL_UP,
4596   EL_TUBE_LEFT_UP,
4597
4598   EL_TRAP,
4599   EL_DX_SUPABOMB,
4600   EL_EMPTY,
4601   EL_EMPTY
4602 };
4603 static int *editor_hl_dx_boulderdash_ptr = editor_hl_dx_boulderdash;
4604 static int *editor_el_dx_boulderdash_ptr = editor_el_dx_boulderdash;
4605 static int num_editor_hl_dx_boulderdash = ARRAY_SIZE(editor_hl_dx_boulderdash);
4606 static int num_editor_el_dx_boulderdash = ARRAY_SIZE(editor_el_dx_boulderdash);
4607
4608 static int editor_hl_mirror_magic[] =
4609 {
4610   EL_INTERNAL_CASCADE_MM_ACTIVE,
4611   EL_CHAR('M'),
4612   EL_CHAR('M'),
4613   EL_EMPTY,
4614 };
4615
4616 static int editor_el_mirror_magic[] =
4617 {
4618   EL_MM_MCDUFFIN_RIGHT,
4619   EL_MM_MCDUFFIN_UP,
4620   EL_MM_MCDUFFIN_LEFT,
4621   EL_MM_MCDUFFIN_DOWN,
4622
4623   EL_MM_MIRROR_START,
4624   EL_MM_MIRROR_FIXED_START,
4625   EL_MM_POLARIZER_START,
4626   EL_MM_POLARIZER_CROSS_START,
4627
4628   EL_MM_TELEPORTER_RED_START,
4629   EL_MM_TELEPORTER_YELLOW_START,
4630   EL_MM_TELEPORTER_GREEN_START,
4631   EL_MM_TELEPORTER_BLUE_START,
4632
4633   EL_MM_PRISM,
4634   EL_MM_FUSE_ACTIVE,
4635   EL_MM_PACMAN_RIGHT,
4636   EL_MM_EXIT_CLOSED,
4637
4638   EL_MM_KETTLE,
4639   EL_MM_BOMB,
4640   EL_MM_KEY,
4641   EL_MM_FUEL_FULL,
4642
4643   EL_MM_LIGHTBULB,
4644   EL_MM_LIGHTBULB_ACTIVE,
4645   EL_MM_GRAY_BALL,
4646   EL_MM_LIGHTBALL,
4647
4648   EL_MM_STEEL_WALL,
4649   EL_MM_WOODEN_WALL,
4650   EL_MM_ICE_WALL,
4651   EL_MM_AMOEBA_WALL,
4652
4653   EL_MM_STEEL_LOCK,
4654   EL_MM_WOODEN_LOCK,
4655   EL_MM_STEEL_BLOCK,
4656   EL_MM_WOODEN_BLOCK,
4657
4658   EL_MM_STEEL_GRID_FIXED_1,
4659   EL_MM_STEEL_GRID_FIXED_2,
4660   EL_MM_STEEL_GRID_FIXED_3,
4661   EL_MM_STEEL_GRID_FIXED_4,
4662
4663   EL_MM_WOODEN_GRID_FIXED_1,
4664   EL_MM_WOODEN_GRID_FIXED_2,
4665   EL_MM_WOODEN_GRID_FIXED_3,
4666   EL_MM_WOODEN_GRID_FIXED_4,
4667
4668   EL_MM_ENVELOPE_1,
4669   EL_MM_ENVELOPE_2,
4670   EL_MM_ENVELOPE_3,
4671   EL_MM_ENVELOPE_4
4672 };
4673 static int *editor_hl_mirror_magic_ptr = editor_hl_mirror_magic;
4674 static int *editor_el_mirror_magic_ptr = editor_el_mirror_magic;
4675 static int num_editor_hl_mirror_magic = ARRAY_SIZE(editor_hl_mirror_magic);
4676 static int num_editor_el_mirror_magic = ARRAY_SIZE(editor_el_mirror_magic);
4677
4678 static int editor_hl_deflektor[] =
4679 {
4680   EL_INTERNAL_CASCADE_DF_ACTIVE,
4681   EL_CHAR('D'),
4682   EL_CHAR('F'),
4683   EL_EMPTY,
4684 };
4685
4686 static int editor_el_deflektor[] =
4687 {
4688   EL_DF_LASER_RIGHT,
4689   EL_DF_LASER_UP,
4690   EL_DF_LASER_LEFT,
4691   EL_DF_LASER_DOWN,
4692
4693   EL_DF_RECEIVER_RIGHT,
4694   EL_DF_RECEIVER_UP,
4695   EL_DF_RECEIVER_LEFT,
4696   EL_DF_RECEIVER_DOWN,
4697
4698   EL_DF_MIRROR_START,
4699   EL_DF_MIRROR_ROTATING_START,
4700   EL_DF_CELL,
4701   EL_DF_MINE,
4702
4703   EL_DF_FIBRE_OPTIC_RED_1,
4704   EL_DF_FIBRE_OPTIC_YELLOW_1,
4705   EL_DF_FIBRE_OPTIC_GREEN_1,
4706   EL_DF_FIBRE_OPTIC_BLUE_1,
4707
4708   EL_DF_STEEL_GRID_FIXED_START,
4709   EL_DF_STEEL_GRID_ROTATING_START,
4710   EL_DF_WOODEN_GRID_FIXED_START,
4711   EL_DF_WOODEN_GRID_ROTATING_START,
4712
4713   EL_DF_STEEL_WALL,
4714   EL_DF_WOODEN_WALL,
4715   EL_DF_REFRACTOR,
4716   EL_EMPTY
4717 };
4718 static int *editor_hl_deflektor_ptr = editor_hl_deflektor;
4719 static int *editor_el_deflektor_ptr = editor_el_deflektor;
4720 static int num_editor_hl_deflektor = ARRAY_SIZE(editor_hl_deflektor);
4721 static int num_editor_el_deflektor = ARRAY_SIZE(editor_el_deflektor);
4722
4723 static int editor_hl_chars[] =
4724 {
4725   EL_INTERNAL_CASCADE_CHARS_ACTIVE,
4726   EL_CHAR('T'),
4727   EL_CHAR('X'),
4728   EL_CHAR('T'),
4729 };
4730
4731 static int editor_el_chars[] =
4732 {
4733   EL_CHAR(' '),
4734   EL_CHAR('!'),
4735   EL_CHAR('"'),
4736   EL_CHAR('#'),
4737
4738   EL_CHAR('$'),
4739   EL_CHAR('%'),
4740   EL_CHAR('&'),
4741   EL_CHAR('\''),
4742
4743   EL_CHAR('('),
4744   EL_CHAR(')'),
4745   EL_CHAR('*'),
4746   EL_CHAR('+'),
4747
4748   EL_CHAR(','),
4749   EL_CHAR('-'),
4750   EL_CHAR('.'),
4751   EL_CHAR('/'),
4752
4753   EL_CHAR('0'),
4754   EL_CHAR('1'),
4755   EL_CHAR('2'),
4756   EL_CHAR('3'),
4757
4758   EL_CHAR('4'),
4759   EL_CHAR('5'),
4760   EL_CHAR('6'),
4761   EL_CHAR('7'),
4762
4763   EL_CHAR('8'),
4764   EL_CHAR('9'),
4765   EL_CHAR(':'),
4766   EL_CHAR(';'),
4767
4768   EL_CHAR('<'),
4769   EL_CHAR('='),
4770   EL_CHAR('>'),
4771   EL_CHAR('?'),
4772
4773   EL_CHAR('@'),
4774   EL_CHAR('A'),
4775   EL_CHAR('B'),
4776   EL_CHAR('C'),
4777
4778   EL_CHAR('D'),
4779   EL_CHAR('E'),
4780   EL_CHAR('F'),
4781   EL_CHAR('G'),
4782
4783   EL_CHAR('H'),
4784   EL_CHAR('I'),
4785   EL_CHAR('J'),
4786   EL_CHAR('K'),
4787
4788   EL_CHAR('L'),
4789   EL_CHAR('M'),
4790   EL_CHAR('N'),
4791   EL_CHAR('O'),
4792
4793   EL_CHAR('P'),
4794   EL_CHAR('Q'),
4795   EL_CHAR('R'),
4796   EL_CHAR('S'),
4797
4798   EL_CHAR('T'),
4799   EL_CHAR('U'),
4800   EL_CHAR('V'),
4801   EL_CHAR('W'),
4802
4803   EL_CHAR('X'),
4804   EL_CHAR('Y'),
4805   EL_CHAR('Z'),
4806   EL_CHAR('['),
4807
4808   EL_CHAR('\\'),
4809   EL_CHAR(']'),
4810   EL_CHAR('^'),
4811   EL_CHAR('_'),
4812
4813   EL_CHAR(CHAR_BYTE_COPYRIGHT),
4814   EL_CHAR(CHAR_BYTE_UMLAUT_A),
4815   EL_CHAR(CHAR_BYTE_UMLAUT_O),
4816   EL_CHAR(CHAR_BYTE_UMLAUT_U),
4817
4818   EL_CHAR(CHAR_BYTE_DEGREE),
4819   EL_CHAR(CHAR_BYTE_REGISTERED),
4820   EL_CHAR(FONT_ASCII_CURSOR),
4821   EL_CHAR(FONT_ASCII_BUTTON),
4822
4823   EL_CHAR(FONT_ASCII_UP),
4824   EL_CHAR(FONT_ASCII_DOWN),
4825   EL_CHAR(' '),
4826   EL_CHAR(' ')
4827 };
4828 static int *editor_hl_chars_ptr = editor_hl_chars;
4829 static int *editor_el_chars_ptr = editor_el_chars;
4830 static int num_editor_hl_chars = ARRAY_SIZE(editor_hl_chars);
4831 static int num_editor_el_chars = ARRAY_SIZE(editor_el_chars);
4832
4833 static int editor_hl_steel_chars[] =
4834 {
4835   EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
4836   EL_STEEL_CHAR('T'),
4837   EL_STEEL_CHAR('X'),
4838   EL_STEEL_CHAR('T'),
4839 };
4840
4841 static int editor_el_steel_chars[] =
4842 {
4843   EL_STEEL_CHAR(' '),
4844   EL_STEEL_CHAR('!'),
4845   EL_STEEL_CHAR('"'),
4846   EL_STEEL_CHAR('#'),
4847
4848   EL_STEEL_CHAR('$'),
4849   EL_STEEL_CHAR('%'),
4850   EL_STEEL_CHAR('&'),
4851   EL_STEEL_CHAR('\''),
4852
4853   EL_STEEL_CHAR('('),
4854   EL_STEEL_CHAR(')'),
4855   EL_STEEL_CHAR('*'),
4856   EL_STEEL_CHAR('+'),
4857
4858   EL_STEEL_CHAR(','),
4859   EL_STEEL_CHAR('-'),
4860   EL_STEEL_CHAR('.'),
4861   EL_STEEL_CHAR('/'),
4862
4863   EL_STEEL_CHAR('0'),
4864   EL_STEEL_CHAR('1'),
4865   EL_STEEL_CHAR('2'),
4866   EL_STEEL_CHAR('3'),
4867
4868   EL_STEEL_CHAR('4'),
4869   EL_STEEL_CHAR('5'),
4870   EL_STEEL_CHAR('6'),
4871   EL_STEEL_CHAR('7'),
4872
4873   EL_STEEL_CHAR('8'),
4874   EL_STEEL_CHAR('9'),
4875   EL_STEEL_CHAR(':'),
4876   EL_STEEL_CHAR(';'),
4877
4878   EL_STEEL_CHAR('<'),
4879   EL_STEEL_CHAR('='),
4880   EL_STEEL_CHAR('>'),
4881   EL_STEEL_CHAR('?'),
4882
4883   EL_STEEL_CHAR('@'),
4884   EL_STEEL_CHAR('A'),
4885   EL_STEEL_CHAR('B'),
4886   EL_STEEL_CHAR('C'),
4887
4888   EL_STEEL_CHAR('D'),
4889   EL_STEEL_CHAR('E'),
4890   EL_STEEL_CHAR('F'),
4891   EL_STEEL_CHAR('G'),
4892
4893   EL_STEEL_CHAR('H'),
4894   EL_STEEL_CHAR('I'),
4895   EL_STEEL_CHAR('J'),
4896   EL_STEEL_CHAR('K'),
4897
4898   EL_STEEL_CHAR('L'),
4899   EL_STEEL_CHAR('M'),
4900   EL_STEEL_CHAR('N'),
4901   EL_STEEL_CHAR('O'),
4902
4903   EL_STEEL_CHAR('P'),
4904   EL_STEEL_CHAR('Q'),
4905   EL_STEEL_CHAR('R'),
4906   EL_STEEL_CHAR('S'),
4907
4908   EL_STEEL_CHAR('T'),
4909   EL_STEEL_CHAR('U'),
4910   EL_STEEL_CHAR('V'),
4911   EL_STEEL_CHAR('W'),
4912
4913   EL_STEEL_CHAR('X'),
4914   EL_STEEL_CHAR('Y'),
4915   EL_STEEL_CHAR('Z'),
4916   EL_STEEL_CHAR('['),
4917
4918   EL_STEEL_CHAR('\\'),
4919   EL_STEEL_CHAR(']'),
4920   EL_STEEL_CHAR('^'),
4921   EL_STEEL_CHAR('_'),
4922
4923   EL_STEEL_CHAR(CHAR_BYTE_COPYRIGHT),
4924   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_A),
4925   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_O),
4926   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_U),
4927
4928   EL_STEEL_CHAR(CHAR_BYTE_DEGREE),
4929   EL_STEEL_CHAR(CHAR_BYTE_REGISTERED),
4930   EL_STEEL_CHAR(FONT_ASCII_CURSOR),
4931   EL_STEEL_CHAR(FONT_ASCII_BUTTON),
4932
4933   EL_STEEL_CHAR(FONT_ASCII_UP),
4934   EL_STEEL_CHAR(FONT_ASCII_DOWN),
4935   EL_STEEL_CHAR(' '),
4936   EL_STEEL_CHAR(' ')
4937 };
4938 static int *editor_hl_steel_chars_ptr = editor_hl_steel_chars;
4939 static int *editor_el_steel_chars_ptr = editor_el_steel_chars;
4940 static int num_editor_hl_steel_chars = ARRAY_SIZE(editor_hl_steel_chars);
4941 static int num_editor_el_steel_chars = ARRAY_SIZE(editor_el_steel_chars);
4942
4943 static int editor_hl_custom[] =
4944 {
4945   EL_INTERNAL_CASCADE_CE_ACTIVE,
4946   EL_CHAR('C'),
4947   EL_CHAR('E'),
4948   EL_EMPTY,
4949 };
4950
4951 static int editor_el_custom[] =
4952 {
4953   EL_CUSTOM_START + 0,
4954   EL_CUSTOM_START + 1,
4955   EL_CUSTOM_START + 2,
4956   EL_CUSTOM_START + 3,
4957
4958   EL_CUSTOM_START + 4,
4959   EL_CUSTOM_START + 5,
4960   EL_CUSTOM_START + 6,
4961   EL_CUSTOM_START + 7,
4962
4963   EL_CUSTOM_START + 8,
4964   EL_CUSTOM_START + 9,
4965   EL_CUSTOM_START + 10,
4966   EL_CUSTOM_START + 11,
4967
4968   EL_CUSTOM_START + 12,
4969   EL_CUSTOM_START + 13,
4970   EL_CUSTOM_START + 14,
4971   EL_CUSTOM_START + 15,
4972
4973   EL_CUSTOM_START + 16,
4974   EL_CUSTOM_START + 17,
4975   EL_CUSTOM_START + 18,
4976   EL_CUSTOM_START + 19,
4977
4978   EL_CUSTOM_START + 20,
4979   EL_CUSTOM_START + 21,
4980   EL_CUSTOM_START + 22,
4981   EL_CUSTOM_START + 23,
4982
4983   EL_CUSTOM_START + 24,
4984   EL_CUSTOM_START + 25,
4985   EL_CUSTOM_START + 26,
4986   EL_CUSTOM_START + 27,
4987
4988   EL_CUSTOM_START + 28,
4989   EL_CUSTOM_START + 29,
4990   EL_CUSTOM_START + 30,
4991   EL_CUSTOM_START + 31,
4992
4993   EL_CUSTOM_START + 32,
4994   EL_CUSTOM_START + 33,
4995   EL_CUSTOM_START + 34,
4996   EL_CUSTOM_START + 35,
4997
4998   EL_CUSTOM_START + 36,
4999   EL_CUSTOM_START + 37,
5000   EL_CUSTOM_START + 38,
5001   EL_CUSTOM_START + 39,
5002
5003   EL_CUSTOM_START + 40,
5004   EL_CUSTOM_START + 41,
5005   EL_CUSTOM_START + 42,
5006   EL_CUSTOM_START + 43,
5007
5008   EL_CUSTOM_START + 44,
5009   EL_CUSTOM_START + 45,
5010   EL_CUSTOM_START + 46,
5011   EL_CUSTOM_START + 47,
5012
5013   EL_CUSTOM_START + 48,
5014   EL_CUSTOM_START + 49,
5015   EL_CUSTOM_START + 50,
5016   EL_CUSTOM_START + 51,
5017
5018   EL_CUSTOM_START + 52,
5019   EL_CUSTOM_START + 53,
5020   EL_CUSTOM_START + 54,
5021   EL_CUSTOM_START + 55,
5022
5023   EL_CUSTOM_START + 56,
5024   EL_CUSTOM_START + 57,
5025   EL_CUSTOM_START + 58,
5026   EL_CUSTOM_START + 59,
5027
5028   EL_CUSTOM_START + 60,
5029   EL_CUSTOM_START + 61,
5030   EL_CUSTOM_START + 62,
5031   EL_CUSTOM_START + 63,
5032
5033   EL_CUSTOM_START + 64,
5034   EL_CUSTOM_START + 65,
5035   EL_CUSTOM_START + 66,
5036   EL_CUSTOM_START + 67,
5037
5038   EL_CUSTOM_START + 68,
5039   EL_CUSTOM_START + 69,
5040   EL_CUSTOM_START + 70,
5041   EL_CUSTOM_START + 71,
5042
5043   EL_CUSTOM_START + 72,
5044   EL_CUSTOM_START + 73,
5045   EL_CUSTOM_START + 74,
5046   EL_CUSTOM_START + 75,
5047
5048   EL_CUSTOM_START + 76,
5049   EL_CUSTOM_START + 77,
5050   EL_CUSTOM_START + 78,
5051   EL_CUSTOM_START + 79,
5052
5053   EL_CUSTOM_START + 80,
5054   EL_CUSTOM_START + 81,
5055   EL_CUSTOM_START + 82,
5056   EL_CUSTOM_START + 83,
5057
5058   EL_CUSTOM_START + 84,
5059   EL_CUSTOM_START + 85,
5060   EL_CUSTOM_START + 86,
5061   EL_CUSTOM_START + 87,
5062
5063   EL_CUSTOM_START + 88,
5064   EL_CUSTOM_START + 89,
5065   EL_CUSTOM_START + 90,
5066   EL_CUSTOM_START + 91,
5067
5068   EL_CUSTOM_START + 92,
5069   EL_CUSTOM_START + 93,
5070   EL_CUSTOM_START + 94,
5071   EL_CUSTOM_START + 95,
5072
5073   EL_CUSTOM_START + 96,
5074   EL_CUSTOM_START + 97,
5075   EL_CUSTOM_START + 98,
5076   EL_CUSTOM_START + 99,
5077
5078   EL_CUSTOM_START + 100,
5079   EL_CUSTOM_START + 101,
5080   EL_CUSTOM_START + 102,
5081   EL_CUSTOM_START + 103,
5082
5083   EL_CUSTOM_START + 104,
5084   EL_CUSTOM_START + 105,
5085   EL_CUSTOM_START + 106,
5086   EL_CUSTOM_START + 107,
5087
5088   EL_CUSTOM_START + 108,
5089   EL_CUSTOM_START + 109,
5090   EL_CUSTOM_START + 110,
5091   EL_CUSTOM_START + 111,
5092
5093   EL_CUSTOM_START + 112,
5094   EL_CUSTOM_START + 113,
5095   EL_CUSTOM_START + 114,
5096   EL_CUSTOM_START + 115,
5097
5098   EL_CUSTOM_START + 116,
5099   EL_CUSTOM_START + 117,
5100   EL_CUSTOM_START + 118,
5101   EL_CUSTOM_START + 119,
5102
5103   EL_CUSTOM_START + 120,
5104   EL_CUSTOM_START + 121,
5105   EL_CUSTOM_START + 122,
5106   EL_CUSTOM_START + 123,
5107
5108   EL_CUSTOM_START + 124,
5109   EL_CUSTOM_START + 125,
5110   EL_CUSTOM_START + 126,
5111   EL_CUSTOM_START + 127,
5112
5113   EL_CUSTOM_START + 128,
5114   EL_CUSTOM_START + 129,
5115   EL_CUSTOM_START + 130,
5116   EL_CUSTOM_START + 131,
5117
5118   EL_CUSTOM_START + 132,
5119   EL_CUSTOM_START + 133,
5120   EL_CUSTOM_START + 134,
5121   EL_CUSTOM_START + 135,
5122
5123   EL_CUSTOM_START + 136,
5124   EL_CUSTOM_START + 137,
5125   EL_CUSTOM_START + 138,
5126   EL_CUSTOM_START + 139,
5127
5128   EL_CUSTOM_START + 140,
5129   EL_CUSTOM_START + 141,
5130   EL_CUSTOM_START + 142,
5131   EL_CUSTOM_START + 143,
5132
5133   EL_CUSTOM_START + 144,
5134   EL_CUSTOM_START + 145,
5135   EL_CUSTOM_START + 146,
5136   EL_CUSTOM_START + 147,
5137
5138   EL_CUSTOM_START + 148,
5139   EL_CUSTOM_START + 149,
5140   EL_CUSTOM_START + 150,
5141   EL_CUSTOM_START + 151,
5142
5143   EL_CUSTOM_START + 152,
5144   EL_CUSTOM_START + 153,
5145   EL_CUSTOM_START + 154,
5146   EL_CUSTOM_START + 155,
5147
5148   EL_CUSTOM_START + 156,
5149   EL_CUSTOM_START + 157,
5150   EL_CUSTOM_START + 158,
5151   EL_CUSTOM_START + 159,
5152
5153   EL_CUSTOM_START + 160,
5154   EL_CUSTOM_START + 161,
5155   EL_CUSTOM_START + 162,
5156   EL_CUSTOM_START + 163,
5157
5158   EL_CUSTOM_START + 164,
5159   EL_CUSTOM_START + 165,
5160   EL_CUSTOM_START + 166,
5161   EL_CUSTOM_START + 167,
5162
5163   EL_CUSTOM_START + 168,
5164   EL_CUSTOM_START + 169,
5165   EL_CUSTOM_START + 170,
5166   EL_CUSTOM_START + 171,
5167
5168   EL_CUSTOM_START + 172,
5169   EL_CUSTOM_START + 173,
5170   EL_CUSTOM_START + 174,
5171   EL_CUSTOM_START + 175,
5172
5173   EL_CUSTOM_START + 176,
5174   EL_CUSTOM_START + 177,
5175   EL_CUSTOM_START + 178,
5176   EL_CUSTOM_START + 179,
5177
5178   EL_CUSTOM_START + 180,
5179   EL_CUSTOM_START + 181,
5180   EL_CUSTOM_START + 182,
5181   EL_CUSTOM_START + 183,
5182
5183   EL_CUSTOM_START + 184,
5184   EL_CUSTOM_START + 185,
5185   EL_CUSTOM_START + 186,
5186   EL_CUSTOM_START + 187,
5187
5188   EL_CUSTOM_START + 188,
5189   EL_CUSTOM_START + 189,
5190   EL_CUSTOM_START + 190,
5191   EL_CUSTOM_START + 191,
5192
5193   EL_CUSTOM_START + 192,
5194   EL_CUSTOM_START + 193,
5195   EL_CUSTOM_START + 194,
5196   EL_CUSTOM_START + 195,
5197
5198   EL_CUSTOM_START + 196,
5199   EL_CUSTOM_START + 197,
5200   EL_CUSTOM_START + 198,
5201   EL_CUSTOM_START + 199,
5202
5203   EL_CUSTOM_START + 200,
5204   EL_CUSTOM_START + 201,
5205   EL_CUSTOM_START + 202,
5206   EL_CUSTOM_START + 203,
5207
5208   EL_CUSTOM_START + 204,
5209   EL_CUSTOM_START + 205,
5210   EL_CUSTOM_START + 206,
5211   EL_CUSTOM_START + 207,
5212
5213   EL_CUSTOM_START + 208,
5214   EL_CUSTOM_START + 209,
5215   EL_CUSTOM_START + 210,
5216   EL_CUSTOM_START + 211,
5217
5218   EL_CUSTOM_START + 212,
5219   EL_CUSTOM_START + 213,
5220   EL_CUSTOM_START + 214,
5221   EL_CUSTOM_START + 215,
5222
5223   EL_CUSTOM_START + 216,
5224   EL_CUSTOM_START + 217,
5225   EL_CUSTOM_START + 218,
5226   EL_CUSTOM_START + 219,
5227
5228   EL_CUSTOM_START + 220,
5229   EL_CUSTOM_START + 221,
5230   EL_CUSTOM_START + 222,
5231   EL_CUSTOM_START + 223,
5232
5233   EL_CUSTOM_START + 224,
5234   EL_CUSTOM_START + 225,
5235   EL_CUSTOM_START + 226,
5236   EL_CUSTOM_START + 227,
5237
5238   EL_CUSTOM_START + 228,
5239   EL_CUSTOM_START + 229,
5240   EL_CUSTOM_START + 230,
5241   EL_CUSTOM_START + 231,
5242
5243   EL_CUSTOM_START + 232,
5244   EL_CUSTOM_START + 233,
5245   EL_CUSTOM_START + 234,
5246   EL_CUSTOM_START + 235,
5247
5248   EL_CUSTOM_START + 236,
5249   EL_CUSTOM_START + 237,
5250   EL_CUSTOM_START + 238,
5251   EL_CUSTOM_START + 239,
5252
5253   EL_CUSTOM_START + 240,
5254   EL_CUSTOM_START + 241,
5255   EL_CUSTOM_START + 242,
5256   EL_CUSTOM_START + 243,
5257
5258   EL_CUSTOM_START + 244,
5259   EL_CUSTOM_START + 245,
5260   EL_CUSTOM_START + 246,
5261   EL_CUSTOM_START + 247,
5262
5263   EL_CUSTOM_START + 248,
5264   EL_CUSTOM_START + 249,
5265   EL_CUSTOM_START + 250,
5266   EL_CUSTOM_START + 251,
5267
5268   EL_CUSTOM_START + 252,
5269   EL_CUSTOM_START + 253,
5270   EL_CUSTOM_START + 254,
5271   EL_CUSTOM_START + 255
5272 };
5273 static int *editor_hl_custom_ptr = editor_hl_custom;
5274 static int *editor_el_custom_ptr = editor_el_custom;
5275 static int num_editor_hl_custom = ARRAY_SIZE(editor_hl_custom);
5276 static int num_editor_el_custom = ARRAY_SIZE(editor_el_custom);
5277
5278 static int editor_hl_group[] =
5279 {
5280   EL_INTERNAL_CASCADE_GE_ACTIVE,
5281   EL_CHAR('G'),
5282   EL_CHAR('E'),
5283   EL_EMPTY,
5284 };
5285
5286 static int editor_el_group[] =
5287 {
5288   EL_GROUP_START + 0,
5289   EL_GROUP_START + 1,
5290   EL_GROUP_START + 2,
5291   EL_GROUP_START + 3,
5292
5293   EL_GROUP_START + 4,
5294   EL_GROUP_START + 5,
5295   EL_GROUP_START + 6,
5296   EL_GROUP_START + 7,
5297
5298   EL_GROUP_START + 8,
5299   EL_GROUP_START + 9,
5300   EL_GROUP_START + 10,
5301   EL_GROUP_START + 11,
5302
5303   EL_GROUP_START + 12,
5304   EL_GROUP_START + 13,
5305   EL_GROUP_START + 14,
5306   EL_GROUP_START + 15,
5307
5308   EL_GROUP_START + 16,
5309   EL_GROUP_START + 17,
5310   EL_GROUP_START + 18,
5311   EL_GROUP_START + 19,
5312
5313   EL_GROUP_START + 20,
5314   EL_GROUP_START + 21,
5315   EL_GROUP_START + 22,
5316   EL_GROUP_START + 23,
5317
5318   EL_GROUP_START + 24,
5319   EL_GROUP_START + 25,
5320   EL_GROUP_START + 26,
5321   EL_GROUP_START + 27,
5322
5323   EL_GROUP_START + 28,
5324   EL_GROUP_START + 29,
5325   EL_GROUP_START + 30,
5326   EL_GROUP_START + 31
5327 };
5328 static int *editor_hl_group_ptr = editor_hl_group;
5329 static int *editor_el_group_ptr = editor_el_group;
5330 static int num_editor_hl_group = ARRAY_SIZE(editor_hl_group);
5331 static int num_editor_el_group = ARRAY_SIZE(editor_el_group);
5332
5333 static int editor_hl_empty_space[] =
5334 {
5335   EL_INTERNAL_CASCADE_ES_ACTIVE,
5336   EL_CHAR('E'),
5337   EL_CHAR('S'),
5338   EL_EMPTY,
5339 };
5340
5341 static int editor_el_empty_space[] =
5342 {
5343   EL_EMPTY_SPACE_1,
5344   EL_EMPTY_SPACE_2,
5345   EL_EMPTY_SPACE_3,
5346   EL_EMPTY_SPACE_4,
5347
5348   EL_EMPTY_SPACE_5,
5349   EL_EMPTY_SPACE_6,
5350   EL_EMPTY_SPACE_7,
5351   EL_EMPTY_SPACE_8,
5352
5353   EL_EMPTY_SPACE_9,
5354   EL_EMPTY_SPACE_10,
5355   EL_EMPTY_SPACE_11,
5356   EL_EMPTY_SPACE_12,
5357
5358   EL_EMPTY_SPACE_13,
5359   EL_EMPTY_SPACE_14,
5360   EL_EMPTY_SPACE_15,
5361   EL_EMPTY_SPACE_16
5362 };
5363 static int *editor_hl_empty_space_ptr = editor_hl_empty_space;
5364 static int *editor_el_empty_space_ptr = editor_el_empty_space;
5365 static int num_editor_hl_empty_space = ARRAY_SIZE(editor_hl_empty_space);
5366 static int num_editor_el_empty_space = ARRAY_SIZE(editor_el_empty_space);
5367
5368 static int editor_hl_reference[] =
5369 {
5370   EL_INTERNAL_CASCADE_REF_ACTIVE,
5371   EL_CHAR('R'),
5372   EL_CHAR('E'),
5373   EL_CHAR('F')
5374 };
5375
5376 static int editor_el_reference[] =
5377 {
5378   EL_TRIGGER_PLAYER,
5379   EL_TRIGGER_ELEMENT,
5380   EL_TRIGGER_CE_VALUE,
5381   EL_TRIGGER_CE_SCORE,
5382
5383   EL_SELF,
5384   EL_ANY_ELEMENT,
5385   EL_CURRENT_CE_VALUE,
5386   EL_CURRENT_CE_SCORE,
5387
5388   EL_PREV_CE_8,
5389   EL_PREV_CE_7,
5390   EL_PREV_CE_6,
5391   EL_PREV_CE_5,
5392
5393   EL_PREV_CE_4,
5394   EL_PREV_CE_3,
5395   EL_PREV_CE_2,
5396   EL_PREV_CE_1,
5397
5398   EL_NEXT_CE_1,
5399   EL_NEXT_CE_2,
5400   EL_NEXT_CE_3,
5401   EL_NEXT_CE_4,
5402
5403   EL_NEXT_CE_5,
5404   EL_NEXT_CE_6,
5405   EL_NEXT_CE_7,
5406   EL_NEXT_CE_8,
5407 };
5408 static int *editor_hl_reference_ptr = editor_hl_reference;
5409 static int *editor_el_reference_ptr = editor_el_reference;
5410 static int num_editor_hl_reference = ARRAY_SIZE(editor_hl_reference);
5411 static int num_editor_el_reference = ARRAY_SIZE(editor_el_reference);
5412
5413 static int editor_hl_user_defined[] =
5414 {
5415   EL_INTERNAL_CASCADE_USER_ACTIVE,
5416   EL_CHAR('M'),
5417   EL_CHAR('Y'),
5418   EL_EMPTY,
5419 };
5420
5421 static int *editor_hl_user_defined_ptr = editor_hl_user_defined;
5422 static int *editor_el_user_defined_ptr = NULL;
5423 static int num_editor_hl_user_defined = ARRAY_SIZE(editor_hl_user_defined);
5424 static int num_editor_el_user_defined = 0;
5425
5426 static int editor_hl_dynamic[] =
5427 {
5428   EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
5429   EL_CHAR('U'),
5430   EL_CHAR('S'),
5431   EL_CHAR('E'),
5432 };
5433
5434 static int *editor_hl_dynamic_ptr = editor_hl_dynamic;
5435 static int *editor_el_dynamic_ptr = NULL;
5436 static int num_editor_hl_dynamic = ARRAY_SIZE(editor_hl_dynamic);
5437 static int num_editor_el_dynamic = 0;
5438
5439 static int editor_hl_empty[] = { EL_EMPTY };
5440 static int *editor_el_empty = NULL;     // dynamically allocated
5441
5442 static int *editor_hl_empty_ptr = editor_hl_empty;
5443 static int *editor_el_empty_ptr = NULL;
5444 static int num_editor_hl_empty = 0;
5445 static int num_editor_el_empty = 0;     // dynamically determined, if needed
5446
5447 static boolean use_el_empty = FALSE;
5448
5449 static int *editor_elements = NULL;     // dynamically allocated
5450 static int num_editor_elements = 0;     // dynamically determined
5451
5452 static boolean setup_editor_cascade_never = FALSE;
5453
5454 static boolean setup_editor_el_players                  = TRUE;
5455 static boolean setup_editor_el_boulderdash              = TRUE;
5456 static boolean setup_editor_el_emerald_mine             = TRUE;
5457 static boolean setup_editor_el_emerald_mine_club        = TRUE;
5458 static boolean setup_editor_el_more                     = TRUE;
5459 static boolean setup_editor_el_sokoban                  = TRUE;
5460 static boolean setup_editor_el_supaplex                 = TRUE;
5461 static boolean setup_editor_el_diamond_caves            = TRUE;
5462 static boolean setup_editor_el_dx_boulderdash           = TRUE;
5463 static boolean setup_editor_el_mirror_magic             = TRUE;
5464 static boolean setup_editor_el_deflektor                = TRUE;
5465 static boolean setup_editor_el_chars                    = TRUE;
5466 static boolean setup_editor_el_steel_chars              = TRUE;
5467 static boolean setup_editor_el_custom                   = TRUE;
5468 static boolean setup_editor_el_user_defined             = TRUE;
5469 static boolean setup_editor_el_dynamic                  = TRUE;
5470
5471 static int editor_hl_unused[] = { EL_EMPTY };
5472 static int *editor_hl_unused_ptr = editor_hl_unused;
5473 static int num_editor_hl_unused = 0;
5474
5475 static struct
5476 {
5477   boolean *setup_value;
5478   boolean *setup_cascade_value;
5479
5480   int **headline_list;
5481   int *headline_list_size;
5482
5483   int **element_list;
5484   int *element_list_size;
5485
5486   boolean last_setup_value;
5487 }
5488 editor_elements_info[] =
5489 {
5490   {
5491     &setup_editor_el_players,
5492     &setup_editor_cascade_never,
5493     &editor_hl_unused_ptr,              &num_editor_hl_unused,
5494     &editor_el_players_ptr,             &num_editor_el_players
5495   },
5496   {
5497     &setup_editor_el_boulderdash,
5498     &setup.editor_cascade.el_bd,
5499     &editor_hl_boulderdash_ptr,         &num_editor_hl_boulderdash,
5500     &editor_el_boulderdash_ptr,         &num_editor_el_boulderdash
5501   },
5502   {
5503     &setup_editor_el_emerald_mine,
5504     &setup.editor_cascade.el_em,
5505     &editor_hl_emerald_mine_ptr,        &num_editor_hl_emerald_mine,
5506     &editor_el_emerald_mine_ptr,        &num_editor_el_emerald_mine
5507   },
5508   {
5509     &setup_editor_el_emerald_mine_club,
5510     &setup.editor_cascade.el_emc,
5511     &editor_hl_emerald_mine_club_ptr,   &num_editor_hl_emerald_mine_club,
5512     &editor_el_emerald_mine_club_ptr,   &num_editor_el_emerald_mine_club
5513   },
5514   {
5515     &setup_editor_el_more,
5516     &setup.editor_cascade.el_rnd,
5517     &editor_hl_rnd_ptr,                 &num_editor_hl_rnd,
5518     &editor_el_rnd_ptr,                 &num_editor_el_rnd
5519   },
5520   {
5521     &setup_editor_el_sokoban,
5522     &setup.editor_cascade.el_sb,
5523     &editor_hl_sokoban_ptr,             &num_editor_hl_sokoban,
5524     &editor_el_sokoban_ptr,             &num_editor_el_sokoban
5525   },
5526   {
5527     &setup_editor_el_supaplex,
5528     &setup.editor_cascade.el_sp,
5529     &editor_hl_supaplex_ptr,            &num_editor_hl_supaplex,
5530     &editor_el_supaplex_ptr,            &num_editor_el_supaplex
5531   },
5532   {
5533     &setup_editor_el_diamond_caves,
5534     &setup.editor_cascade.el_dc,
5535     &editor_hl_diamond_caves_ptr,       &num_editor_hl_diamond_caves,
5536     &editor_el_diamond_caves_ptr,       &num_editor_el_diamond_caves
5537   },
5538   {
5539     &setup_editor_el_dx_boulderdash,
5540     &setup.editor_cascade.el_dx,
5541     &editor_hl_dx_boulderdash_ptr,      &num_editor_hl_dx_boulderdash,
5542     &editor_el_dx_boulderdash_ptr,      &num_editor_el_dx_boulderdash
5543   },
5544   {
5545     &setup_editor_el_mirror_magic,
5546     &setup.editor_cascade.el_mm,
5547     &editor_hl_mirror_magic_ptr,        &num_editor_hl_mirror_magic,
5548     &editor_el_mirror_magic_ptr,        &num_editor_el_mirror_magic
5549   },
5550   {
5551     &setup_editor_el_deflektor,
5552     &setup.editor_cascade.el_df,
5553     &editor_hl_deflektor_ptr,           &num_editor_hl_deflektor,
5554     &editor_el_deflektor_ptr,           &num_editor_el_deflektor
5555   },
5556   {
5557     &setup_editor_el_chars,
5558     &setup.editor_cascade.el_chars,
5559     &editor_hl_chars_ptr,               &num_editor_hl_chars,
5560     &editor_el_chars_ptr,               &num_editor_el_chars
5561   },
5562   {
5563     &setup_editor_el_steel_chars,
5564     &setup.editor_cascade.el_steel_chars,
5565     &editor_hl_steel_chars_ptr,         &num_editor_hl_steel_chars,
5566     &editor_el_steel_chars_ptr,         &num_editor_el_steel_chars
5567   },
5568   {
5569     &setup_editor_el_custom,
5570     &setup.editor_cascade.el_ce,
5571     &editor_hl_custom_ptr,              &num_editor_hl_custom,
5572     &editor_el_custom_ptr,              &num_editor_el_custom
5573   },
5574   {
5575     &setup_editor_el_custom,
5576     &setup.editor_cascade.el_ge,
5577     &editor_hl_group_ptr,               &num_editor_hl_group,
5578     &editor_el_group_ptr,               &num_editor_el_group
5579   },
5580   {
5581     &setup_editor_el_custom,
5582     &setup.editor_cascade.el_es,
5583     &editor_hl_empty_space_ptr,         &num_editor_hl_empty_space,
5584     &editor_el_empty_space_ptr,         &num_editor_el_empty_space
5585   },
5586   {
5587     &setup_editor_el_custom,
5588     &setup.editor_cascade.el_ref,
5589     &editor_hl_reference_ptr,           &num_editor_hl_reference,
5590     &editor_el_reference_ptr,           &num_editor_el_reference
5591   },
5592   {
5593     &setup_editor_el_user_defined,
5594     &setup.editor_cascade.el_user,
5595     &editor_hl_user_defined_ptr,        &num_editor_hl_user_defined,
5596     &editor_el_user_defined_ptr,        &num_editor_el_user_defined
5597   },
5598   {
5599     &setup_editor_el_dynamic,
5600     &setup.editor_cascade.el_dynamic,
5601     &editor_hl_dynamic_ptr,             &num_editor_hl_dynamic,
5602     &editor_el_dynamic_ptr,             &num_editor_el_dynamic,
5603   },
5604   {
5605     &use_el_empty,
5606     &use_el_empty,
5607     &editor_hl_empty_ptr,               &num_editor_hl_empty,
5608     &editor_el_empty_ptr,               &num_editor_el_empty,
5609   },
5610   {
5611     NULL,
5612     NULL,
5613     NULL,                               NULL,
5614     NULL,                               NULL
5615   }
5616 };
5617
5618 static struct XY xy_directions[] =
5619 {
5620   { -1,  0 },
5621   { +1,  0 },
5622   {  0, -1 },
5623   {  0, +1 }
5624 };
5625
5626
5627 // ----------------------------------------------------------------------------
5628 // functions
5629 // ----------------------------------------------------------------------------
5630
5631 static int getMaxInfoTextLength(void)
5632 {
5633   return (SXSIZE / getFontWidth(INFOTEXT_FONT));
5634 }
5635
5636 static int getTextWidthForGadget(char *text)
5637 {
5638   if (text == NULL)
5639     return 0;
5640
5641   return (getTextWidth(text, FONT_TEXT_1) + ED_GADGET_TEXT_DISTANCE);
5642 }
5643
5644 static int getTextWidthForDrawingArea(char *text)
5645 {
5646   if (text == NULL)
5647     return 0;
5648
5649   return (getTextWidth(text, FONT_TEXT_1) + ED_DRAWINGAREA_TEXT_DISTANCE);
5650 }
5651
5652 static int getRightGadgetBorder(struct GadgetInfo *gi, char *text)
5653 {
5654   return (gi->x + gi->width + getTextWidthForGadget(text));
5655 }
5656
5657 static char *getElementInfoText(int element)
5658 {
5659   char *info_text = NULL;
5660
5661   if (element < MAX_NUM_ELEMENTS)
5662   {
5663     if (strlen(element_info[element].description) > 0)
5664       info_text = element_info[element].description;
5665     else if (element_info[element].custom_description != NULL)
5666       info_text = element_info[element].custom_description;
5667     else if (element_info[element].editor_description != NULL)
5668       info_text = element_info[element].editor_description;
5669   }
5670
5671   if (info_text == NULL)
5672     info_text = INFOTEXT_UNKNOWN_ELEMENT;
5673
5674   return info_text;
5675 }
5676
5677 static char *getElementDescriptionFilenameExt(char *basename)
5678 {
5679   char *elements_subdir = ELEMENTS_DIRECTORY;
5680   static char *elements_subdir2 = NULL;
5681   static char *filename = NULL;
5682
5683   if (elements_subdir2 == NULL)
5684     elements_subdir2 = getPath2(DOCS_DIRECTORY, elements_subdir);
5685
5686   checked_free(filename);
5687
5688   // 1st try: look for element description in current level set directory
5689   filename = getPath3(getCurrentLevelDir(), elements_subdir2, basename);
5690   if (fileExists(filename))
5691     return filename;
5692
5693   free(filename);
5694
5695   // 2nd try: look for element description in the game's base directory
5696   filename = getPath3(options.docs_directory, elements_subdir, basename);
5697   if (fileExists(filename))
5698     return filename;
5699
5700   return NULL;
5701 }
5702
5703 static char *getElementDescriptionFilename(int element)
5704 {
5705   char basename[MAX_FILENAME_LEN];
5706   char *filename;
5707
5708   // 1st try: look for element description file for exactly this element
5709   sprintf(basename, "%s.txt", element_info[element].token_name);
5710   filename = getElementDescriptionFilenameExt(basename);
5711   if (filename != NULL)
5712     return filename;
5713
5714   // 2nd try: look for element description file for this element's class
5715   sprintf(basename, "%s.txt", element_info[element].class_name);
5716   filename = getElementDescriptionFilenameExt(basename);
5717   if (filename != NULL)
5718     return filename;
5719
5720   // 3rd try: look for generic fallback text file for any element
5721   filename = getElementDescriptionFilenameExt(FALLBACK_TEXT_FILENAME);
5722   if (filename != NULL)
5723     return filename;
5724
5725   return NULL;
5726 }
5727
5728 static boolean suppressBorderElement(void)
5729 {
5730   return (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
5731           lev_fieldx <= MAX_ED_FIELDX &&
5732           lev_fieldy <= MAX_ED_FIELDY);
5733 }
5734
5735 static void InitDynamicEditorElementList(int **elements, int *num_elements)
5736 {
5737   boolean element_found[NUM_FILE_ELEMENTS];
5738   int i, x, y;
5739
5740   // initialize list of used elements to "not used"
5741   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5742     element_found[i] = FALSE;
5743
5744   // find all elements used in current level
5745   for (y = 0; y < lev_fieldy; y++)
5746     for (x = 0; x < lev_fieldx; x++)
5747       if (Tile[x][y] < NUM_FILE_ELEMENTS)       // should always be true
5748         element_found[Tile[x][y]] = TRUE;
5749
5750   *num_elements = 0;
5751
5752   // count number of elements used in current level
5753   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5754     if (element_found[i])
5755       (*num_elements)++;
5756
5757   // add space for up to 3 more elements for padding that may be needed
5758   *num_elements += 3;
5759
5760   // free memory for old list of elements, if needed
5761   checked_free(*elements);
5762
5763   // allocate memory for new list of elements
5764   *elements = checked_malloc(*num_elements * sizeof(int));
5765
5766   *num_elements = 0;
5767
5768   // add all elements used in current level (non-custom/group elements)
5769   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5770     if (element_found[i] && !(IS_CUSTOM_ELEMENT(i) || IS_GROUP_ELEMENT(i)))
5771       (*elements)[(*num_elements)++] = i;
5772
5773   // add all elements used in current level (custom/group elements)
5774   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
5775     if (element_found[i] && (IS_CUSTOM_ELEMENT(i) || IS_GROUP_ELEMENT(i)))
5776       (*elements)[(*num_elements)++] = i;
5777
5778   while (*num_elements % 4)     // pad with empty elements, if needed
5779     (*elements)[(*num_elements)++] = EL_EMPTY;
5780 }
5781
5782 static void ReinitializeElementList_EnableSections(void)
5783 {
5784   // default: enable all element sections
5785
5786   setup_editor_el_players               = TRUE;
5787   setup_editor_el_boulderdash           = TRUE;
5788   setup_editor_el_emerald_mine          = TRUE;
5789   setup_editor_el_emerald_mine_club     = TRUE;
5790   setup_editor_el_more                  = TRUE;
5791   setup_editor_el_sokoban               = TRUE;
5792   setup_editor_el_supaplex              = TRUE;
5793   setup_editor_el_diamond_caves         = TRUE;
5794   setup_editor_el_dx_boulderdash        = TRUE;
5795   setup_editor_el_mirror_magic          = TRUE;
5796   setup_editor_el_deflektor             = TRUE;
5797   setup_editor_el_chars                 = TRUE;
5798   setup_editor_el_steel_chars           = TRUE;
5799
5800   setup_editor_el_custom                = TRUE;
5801   setup_editor_el_user_defined          = TRUE;
5802   setup_editor_el_dynamic               = TRUE;
5803
5804   // now disable all element sections not to be displayed
5805
5806   if (!setup.editor.el_classic)
5807   {
5808     setup_editor_el_players             = FALSE;
5809     setup_editor_el_boulderdash         = FALSE;
5810     setup_editor_el_emerald_mine        = FALSE;
5811     setup_editor_el_emerald_mine_club   = FALSE;
5812     setup_editor_el_more                = FALSE;
5813     setup_editor_el_sokoban             = FALSE;
5814     setup_editor_el_supaplex            = FALSE;
5815     setup_editor_el_diamond_caves       = FALSE;
5816     setup_editor_el_dx_boulderdash      = FALSE;
5817     setup_editor_el_mirror_magic        = FALSE;
5818     setup_editor_el_deflektor           = FALSE;
5819     setup_editor_el_chars               = FALSE;
5820     setup_editor_el_steel_chars         = FALSE;
5821   }
5822
5823   if (!setup.editor.el_custom)
5824   {
5825     setup_editor_el_custom              = FALSE;
5826   }
5827
5828   if (!setup.editor.el_user_defined)
5829   {
5830     setup_editor_el_user_defined        = FALSE;
5831   }
5832
5833   if (!setup.editor.el_dynamic)
5834   {
5835     setup_editor_el_dynamic             = FALSE;
5836   }
5837
5838   if (level.game_engine_type == GAME_ENGINE_TYPE_RND)
5839   {
5840     setup_editor_el_mirror_magic        = FALSE;
5841     setup_editor_el_deflektor           = FALSE;
5842   }
5843   else if (level.game_engine_type == GAME_ENGINE_TYPE_EM)
5844   {
5845     setup_editor_el_boulderdash         = FALSE;
5846     setup_editor_el_more                = FALSE;
5847     setup_editor_el_sokoban             = FALSE;
5848     setup_editor_el_supaplex            = FALSE;
5849     setup_editor_el_diamond_caves       = FALSE;
5850     setup_editor_el_dx_boulderdash      = FALSE;
5851     setup_editor_el_mirror_magic        = FALSE;
5852     setup_editor_el_deflektor           = FALSE;
5853     setup_editor_el_steel_chars         = FALSE;
5854
5855     setup_editor_el_custom              = FALSE;
5856   }
5857   else if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
5858   {
5859     setup_editor_el_players             = FALSE;
5860     setup_editor_el_boulderdash         = FALSE;
5861     setup_editor_el_emerald_mine        = FALSE;
5862     setup_editor_el_emerald_mine_club   = FALSE;
5863     setup_editor_el_more                = FALSE;
5864     setup_editor_el_sokoban             = FALSE;
5865     setup_editor_el_diamond_caves       = FALSE;
5866     setup_editor_el_dx_boulderdash      = FALSE;
5867     setup_editor_el_mirror_magic        = FALSE;
5868     setup_editor_el_deflektor           = FALSE;
5869     setup_editor_el_chars               = FALSE;
5870     setup_editor_el_steel_chars         = FALSE;
5871
5872     setup_editor_el_custom              = FALSE;
5873   }
5874   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
5875   {
5876     setup_editor_el_players             = FALSE;
5877     setup_editor_el_boulderdash         = FALSE;
5878     setup_editor_el_emerald_mine        = FALSE;
5879     setup_editor_el_emerald_mine_club   = FALSE;
5880     setup_editor_el_more                = FALSE;
5881     setup_editor_el_sokoban             = FALSE;
5882     setup_editor_el_supaplex            = FALSE;
5883     setup_editor_el_diamond_caves       = FALSE;
5884     setup_editor_el_dx_boulderdash      = FALSE;
5885     setup_editor_el_steel_chars         = FALSE;
5886
5887     setup_editor_el_custom              = FALSE;
5888   }
5889 }
5890
5891 static void ReinitializeElementList(void)
5892 {
5893   static boolean initialization_needed = TRUE;
5894   int pos = 0;
5895   int i, j;
5896
5897   ReinitializeElementList_EnableSections();
5898
5899   if (initialization_needed)
5900   {
5901     LoadSetup_EditorCascade();          // load last editor cascade state
5902
5903     // initialize editor cascade element from saved cascade state
5904     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5905     {
5906       int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
5907       boolean cascade_value = *editor_elements_info[i].setup_cascade_value;
5908
5909       if (IS_EDITOR_CASCADE(*cascade_element))
5910         *cascade_element =
5911           (cascade_value ? EL_CASCADE_ACTIVE(*cascade_element) :
5912            EL_CASCADE_INACTIVE(*cascade_element));
5913     }
5914
5915     initialization_needed = FALSE;
5916   }
5917
5918   checked_free(editor_elements);
5919
5920   // reload optional user defined element list for each invocation of editor
5921   LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
5922                                    &num_editor_el_user_defined);
5923
5924   // initialize dynamic level element list for each invocation of editor
5925   InitDynamicEditorElementList(&editor_el_dynamic_ptr,
5926                                &num_editor_el_dynamic);
5927
5928   // initialize list of empty elements (used for padding, if needed)
5929   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
5930     editor_el_empty[i] = EL_EMPTY;
5931
5932   // do some sanity checks for each element from element list
5933   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5934   {
5935     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
5936     {
5937       int element = (*editor_elements_info[i].element_list)[j];
5938
5939       if (element >= NUM_FILE_ELEMENTS)
5940         Warn("editor element %d is runtime element", element);
5941
5942       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
5943         Warn("no element description text for element %d", element);
5944     }
5945   }
5946
5947   num_editor_elements = 0;
5948   use_el_empty = FALSE;
5949
5950   // determine size of element list
5951   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5952   {
5953     if (*editor_elements_info[i].setup_value)
5954     {
5955       boolean found_inactive_cascade = FALSE;
5956
5957       if (setup.editor.el_headlines)
5958       {
5959         // required for correct padding of palette headline buttons
5960         if (*editor_elements_info[i].headline_list_size > 0)
5961           num_editor_elements += ED_ELEMENTLIST_COLS;
5962
5963         for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
5964         {
5965           int element = (*editor_elements_info[i].headline_list)[j];
5966
5967           if (IS_EDITOR_CASCADE_INACTIVE(element))
5968             found_inactive_cascade = TRUE;
5969         }
5970       }
5971
5972       if (found_inactive_cascade)
5973         continue;
5974
5975       // required for correct padding of palette element buttons
5976       int element_list_size = *editor_elements_info[i].element_list_size;
5977       int element_rows =
5978         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
5979       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
5980
5981       num_editor_elements += element_buttons;
5982     }
5983   }
5984
5985   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
5986   {
5987     // offer at least as many elements as element buttons exist
5988     use_el_empty = TRUE;
5989     num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS - num_editor_elements;
5990
5991     num_editor_elements += num_editor_el_empty;
5992   }
5993   else
5994   {
5995     num_editor_el_empty = 0;
5996   }
5997
5998   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
5999
6000   // fill element list
6001   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6002   {
6003     boolean found_inactive_cascade = FALSE;
6004
6005     if (*editor_elements_info[i].setup_value)
6006     {
6007       if (setup.editor.el_headlines)
6008       {
6009         // required for correct padding of palette headline buttons
6010         int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
6011                              ED_ELEMENTLIST_COLS : 0);
6012
6013         for (j = 0; j < headline_size; j++)
6014         {
6015           // use empty elements for padding of palette headline buttons
6016           int element = (j < *editor_elements_info[i].headline_list_size ?
6017                          (*editor_elements_info[i].headline_list)[j] :
6018                          editor_el_empty[0]);
6019
6020           editor_elements[pos++] = element;
6021
6022           if (IS_EDITOR_CASCADE_INACTIVE(element))
6023             found_inactive_cascade = TRUE;
6024         }
6025       }
6026
6027       if (found_inactive_cascade)
6028         continue;
6029
6030       // required for correct padding of palette element buttons
6031       int element_list_size = *editor_elements_info[i].element_list_size;
6032       int element_rows =
6033         (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
6034       int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
6035
6036       // copy all elements from element list
6037       for (j = 0; j < element_list_size; j++)
6038         editor_elements[pos++] = (*editor_elements_info[i].element_list)[j];
6039
6040       // use empty elements for padding of palette element buttons
6041       for (j = 0; j < element_buttons - element_list_size; j++)
6042         editor_elements[pos++] = editor_el_empty[0];
6043     }
6044   }
6045
6046   // (this function is also called before editor gadgets are initialized!)
6047   AdjustElementListScrollbar();
6048 }
6049
6050 void PrintEditorElementList(void)
6051 {
6052   boolean *stop = &setup_editor_el_user_defined;
6053   int i, j;
6054
6055   for (i = 0; editor_elements_info[i].setup_value != stop; i++)
6056   {
6057     int cascade_element = (*editor_elements_info[i].headline_list)[0];
6058
6059     if (IS_EDITOR_CASCADE(cascade_element))
6060     {
6061       int cascade_element_show = EL_CASCADE_INACTIVE(cascade_element);
6062       char *headline = element_info[cascade_element_show].editor_description;
6063
6064       PrintLineWithPrefix("# ", "-", 77);
6065       Print("# %s\n", headline);
6066       PrintLineWithPrefix("# ", "-", 77);
6067     }
6068
6069     for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
6070     {
6071       int element = (*editor_elements_info[i].headline_list)[j];
6072
6073       if (IS_EDITOR_CASCADE(element))
6074         element = EL_CHAR_MINUS;
6075
6076       Print("# %s\n", element_info[element].token_name);
6077     }
6078
6079     if (j > 0)
6080       Print("#\n");
6081
6082     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
6083     {
6084       int element = (*editor_elements_info[i].element_list)[j];
6085
6086       Print("# %s\n", element_info[element].token_name);
6087     }
6088
6089     if (j > 0)
6090       Print("#\n");
6091   }
6092 }
6093
6094 static void ReinitializeElementListButtons(void)
6095 {
6096   static boolean last_setup_value_headlines = FALSE;
6097   static boolean initialization_needed = TRUE;
6098   int i;
6099
6100   if (!initialization_needed)   // check if editor element setup has changed
6101   {
6102     if (last_setup_value_headlines != setup.editor.el_headlines)
6103       initialization_needed = TRUE;
6104
6105     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6106       if (editor_elements_info[i].last_setup_value !=
6107           *editor_elements_info[i].setup_value)
6108         initialization_needed = TRUE;
6109   }
6110
6111   if (!initialization_needed)
6112     return;
6113
6114   FreeLevelEditorGadgets();
6115   CreateLevelEditorGadgets();
6116
6117   // store current setup values for next invocation of this function
6118   last_setup_value_headlines = setup.editor.el_headlines;
6119   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
6120     editor_elements_info[i].last_setup_value =
6121       *editor_elements_info[i].setup_value;
6122
6123   initialization_needed = FALSE;
6124 }
6125
6126 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
6127                               boolean input)
6128 {
6129   int border_graphic =
6130     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
6131   struct GraphicInfo *g = &graphic_info[border_graphic];
6132   Bitmap *src_bitmap = g->bitmap;
6133   int src_x = g->src_x;
6134   int src_y = g->src_y;
6135   int border_size = g->border_size;
6136   int border_xpos = g->width  - border_size;
6137   int border_ypos = g->height - border_size;
6138   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
6139   int i;
6140
6141   BlitBitmap(src_bitmap, drawto, src_x, src_y,
6142              border_size, border_size,
6143              dest_x - border_size, dest_y - border_size);
6144   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y,
6145              border_size, border_size,
6146              dest_x + width, dest_y - border_size);
6147   BlitBitmap(src_bitmap, drawto, src_x, src_y + border_ypos,
6148              border_size, border_size,
6149              dest_x - border_size, dest_y + height);
6150   BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_ypos,
6151              border_size, border_size,
6152              dest_x + width, dest_y + height);
6153
6154   for (i = 0; i < width / tilesize; i++)
6155   {
6156     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y,
6157                tilesize, border_size,
6158                dest_x + i * tilesize, dest_y - border_size);
6159     BlitBitmap(src_bitmap, drawto, src_x + border_size, src_y + border_ypos,
6160                tilesize, border_size,
6161                dest_x + i * tilesize, dest_y + height);
6162   }
6163
6164   for (i = 0; i < height / tilesize; i++)
6165   {
6166     BlitBitmap(src_bitmap, drawto, src_x, src_y + border_size,
6167                border_size, tilesize,
6168                dest_x - border_size, dest_y + i * tilesize);
6169     BlitBitmap(src_bitmap, drawto, src_x + border_xpos, src_y + border_size,
6170                border_size, tilesize,
6171                dest_x + width, dest_y + i * tilesize);
6172   }
6173
6174   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
6175 }
6176
6177 static void DrawEditorLevelBorderLine(int x, int y, int xsize, int ysize)
6178 {
6179   int xsize_tile = MAX(ed_tilesize, xsize);
6180   int ysize_tile = MAX(ed_tilesize, ysize);
6181   int xsize_full = xsize + 1;
6182   int ysize_full = ysize + 1;
6183   int xsize_thin = (xsize < ed_tilesize ? 1 : xsize);
6184   int ysize_thin = (ysize < ed_tilesize ? 1 : ysize);
6185   Pixel line_color = getTabulatorBarColor();
6186
6187   if (line_color == BLACK_PIXEL)                // black => transparent
6188     return;
6189
6190   FillRectangle(drawto, SX + x, SY + y, xsize_tile, ysize_tile, BLACK_PIXEL);
6191   FillRectangle(drawto, SX + x, SY + y, xsize_full, ysize_full, line_color);
6192   FillRectangle(drawto, SX + x, SY + y, xsize_thin, ysize_thin, BLACK_PIXEL);
6193 }
6194
6195 static void DrawEditorLevelBorderLinesIfNeeded(void)
6196 {
6197   int xsize = lev_fieldx * ed_tilesize;
6198   int ysize = lev_fieldy * ed_tilesize;
6199   int line_size = getTabulatorBarHeight();
6200
6201   if (!suppressBorderElement())
6202     return;
6203
6204   // draw little border line around editable level playfield
6205
6206   if (xsize < SXSIZE)
6207     DrawEditorLevelBorderLine(xsize, 0, line_size, ysize);
6208
6209   if (ysize < SYSIZE)
6210     DrawEditorLevelBorderLine(0, ysize, xsize, line_size);
6211
6212   if (xsize < SXSIZE && ysize < SYSIZE)
6213     DrawEditorLevelBorderLine(xsize, ysize, line_size, line_size);
6214 }
6215
6216 static void DrawEditorElement(int x, int y, int element)
6217 {
6218   DrawSizedElement(x, y, element, ed_tilesize);
6219 }
6220
6221 static void DrawEditorElementThruMask(int x, int y, int element)
6222 {
6223   DrawSizedElementThruMask(x, y, element, ed_tilesize);
6224 }
6225
6226 static void DrawEditorElementOrWall(int x, int y, int scroll_x, int scroll_y)
6227 {
6228   DrawSizedElementOrWall(x, y, scroll_x, scroll_y, ed_tilesize);
6229 }
6230
6231 static void DrawEditorLevel(int size_x, int size_y, int scroll_x, int scroll_y)
6232 {
6233   DrawSizedLevel(size_x, size_y, scroll_x, scroll_y, ed_tilesize);
6234   DrawEditorLevelBorderLinesIfNeeded();
6235 }
6236
6237 static void DrawDrawingArea(int id)
6238 {
6239   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
6240   int x, y;
6241
6242   int *value = drawingarea_info[id].value;
6243   int area_xsize = drawingarea_info[id].area_xsize;
6244   int area_ysize = drawingarea_info[id].area_ysize;
6245   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
6246
6247   for (x = 0; x < area_xsize; x++)
6248     for (y = 0; y < area_ysize; y++)
6249       DrawSizedGraphicExt(drawto,
6250                           gi->x + x * tilesize,
6251                           gi->y + y * tilesize,
6252                           el2edimg(value[x * area_ysize + y]), 0, tilesize);
6253 }
6254
6255 static void ScrollEditorLevel(int from_x, int from_y, int scroll)
6256 {
6257   int x, y;
6258   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
6259   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
6260
6261   BlitBitmap(drawto, drawto,
6262              SX + (dx == -1 ? ed_tilesize : 0),
6263              SY + (dy == -1 ? ed_tilesize : 0),
6264              (ed_fieldx * ed_tilesize) - (dx != 0 ? ed_tilesize : 0),
6265              (ed_fieldy * ed_tilesize) - (dy != 0 ? ed_tilesize : 0),
6266              SX + (dx == +1 ? ed_tilesize : 0),
6267              SY + (dy == +1 ? ed_tilesize : 0));
6268
6269   if (dx)
6270   {
6271     x = (dx == 1 ? 0 : ed_fieldx - 1);
6272     for (y = 0; y < ed_fieldy; y++)
6273       DrawEditorElementOrWall(x, y, from_x, from_y);
6274   }
6275   else if (dy)
6276   {
6277     y = (dy == 1 ? 0 : ed_fieldy - 1);
6278     for (x = 0; x < ed_fieldx; x++)
6279       DrawEditorElementOrWall(x, y, from_x, from_y);
6280   }
6281
6282   redraw_mask |= REDRAW_FIELD;
6283   BackToFront();
6284 }
6285
6286 static void getEditorGraphicSource(int element, int tile_size, Bitmap **bitmap,
6287                                    int *x, int *y)
6288 {
6289   getSizedGraphicSource(el2edimg(element), 0, tile_size, bitmap, x, y);
6290 }
6291
6292 static void CreateControlButtons(void)
6293 {
6294   struct GadgetInfo *gi;
6295   int i;
6296
6297   // create toolbox buttons
6298   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
6299   {
6300     int id = controlbutton_info[i].gadget_id;
6301     int type = controlbutton_info[i].gadget_type;
6302     int graphic = controlbutton_info[i].graphic;
6303     struct XYTileSize *pos = controlbutton_info[i].pos;
6304     struct GraphicInfo *gd = &graphic_info[graphic];
6305     Bitmap *deco_bitmap = NULL;
6306     int deco_x = 0, deco_y = 0, deco_xpos = 0, deco_ypos = 0;
6307     int tile_size = 0, deco_shift = 0;
6308     boolean deco_masked = FALSE;
6309     int gd_x1 = gd->src_x;
6310     int gd_y1 = gd->src_y;
6311     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6312     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6313     int gd_x1a = gd->src_x + gd->active_xoffset;
6314     int gd_y1a = gd->src_y + gd->active_yoffset;
6315     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
6316     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
6317     int x = pos->x;
6318     int y = pos->y;
6319     unsigned int event_mask;
6320     int radio_button_nr = RADIO_NR_NONE;
6321     boolean checked = FALSE;
6322
6323     if (type == GD_TYPE_RADIO_BUTTON)
6324     {
6325       event_mask = GD_EVENT_PRESSED;
6326       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
6327
6328       if (id == drawing_function)
6329         checked = TRUE;
6330     }
6331     else
6332     {
6333       if (id == GADGET_ID_WRAP_LEFT ||
6334           id == GADGET_ID_WRAP_RIGHT ||
6335           id == GADGET_ID_WRAP_UP ||
6336           id == GADGET_ID_WRAP_DOWN)
6337         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
6338       else
6339         event_mask = GD_EVENT_RELEASED;
6340     }
6341
6342     if (id == GADGET_ID_PROPERTIES ||
6343         id == GADGET_ID_PALETTE)
6344     {
6345       x += DX;
6346       y += DY;
6347     }
6348     else if (id == GADGET_ID_ELEMENT_LEFT ||
6349              id == GADGET_ID_ELEMENT_MIDDLE ||
6350              id == GADGET_ID_ELEMENT_RIGHT)
6351     {
6352       x += DX;
6353       y += DY;
6354
6355       int element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
6356                      id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
6357                      id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 : EL_EMPTY);
6358
6359       tile_size = BUTTON_TILE_SIZE(id == GADGET_ID_ELEMENT_LEFT ?
6360                                    editor.button.element_left.tile_size :
6361                                    id == GADGET_ID_ELEMENT_MIDDLE ?
6362                                    editor.button.element_middle.tile_size :
6363                                    id == GADGET_ID_ELEMENT_RIGHT ?
6364                                    editor.button.element_right.tile_size : 0);
6365
6366       // make sure that decoration does not overlap gadget border
6367       tile_size = MIN(tile_size, MIN(gd->width, gd->height));
6368
6369       getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x,&deco_y);
6370
6371       deco_xpos = (gd->width  - tile_size) / 2;
6372       deco_ypos = (gd->height - tile_size) / 2;
6373       deco_shift = 1;
6374       deco_masked = gd->draw_masked;
6375     }
6376     else
6377     {
6378       x += EX;
6379       y += EY;
6380     }
6381
6382     gi = CreateGadget(GDI_CUSTOM_ID, id,
6383                       GDI_CUSTOM_TYPE_ID, i,
6384                       GDI_IMAGE_ID, graphic,
6385                       GDI_INFO_TEXT, controlbutton_info[i].infotext,
6386                       GDI_X, x,
6387                       GDI_Y, y,
6388                       GDI_WIDTH, gd->width,
6389                       GDI_HEIGHT, gd->height,
6390                       GDI_TYPE, type,
6391                       GDI_STATE, GD_BUTTON_UNPRESSED,
6392                       GDI_RADIO_NR, radio_button_nr,
6393                       GDI_CHECKED, checked,
6394                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6395                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6396                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
6397                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
6398                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
6399                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
6400                       GDI_DECORATION_SIZE, tile_size, tile_size,
6401                       GDI_DECORATION_SHIFTING, deco_shift, deco_shift,
6402                       GDI_DECORATION_MASKED, deco_masked,
6403                       GDI_EVENT_MASK, event_mask,
6404                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6405                       GDI_CALLBACK_ACTION, HandleControlButtons,
6406                       GDI_END);
6407
6408     if (gi == NULL)
6409       Fail("cannot create gadget");
6410
6411     level_editor_gadget[id] = gi;
6412   }
6413
6414   // these values are not constant, but can change at runtime
6415   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].x    = ED_SCROLL_UP_XPOS;
6416   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].y    = ED_SCROLL_UP_YPOS;
6417   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].x  = ED_SCROLL_DOWN_XPOS;
6418   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].y  = ED_SCROLL_DOWN_YPOS;
6419   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].x  = ED_SCROLL_LEFT_XPOS;
6420   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].y  = ED_SCROLL_LEFT_YPOS;
6421   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].x = ED_SCROLL_RIGHT_XPOS;
6422   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].y = ED_SCROLL_RIGHT_YPOS;
6423   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].x    = ED_SCROLL2_UP_XPOS;
6424   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].y    = ED_SCROLL2_UP_YPOS;
6425   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].x  = ED_SCROLL2_DOWN_XPOS;
6426   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].y  = ED_SCROLL2_DOWN_YPOS;
6427
6428   // create buttons for scrolling of drawing area and element list
6429   for (i = 0; i < ED_NUM_SCROLLBUTTONS; i++)
6430   {
6431     int id = scrollbutton_info[i].gadget_id;
6432     int graphic = scrollbutton_info[i].graphic;
6433     struct GraphicInfo *gd = &graphic_info[graphic];
6434     Bitmap *gd_bitmap = gd->bitmap;
6435     int gd_x1 = gd->src_x;
6436     int gd_y1 = gd->src_y;
6437     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6438     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6439     int width  = gd->width;
6440     int height = gd->height;
6441     int x = scrollbutton_pos[i].x;
6442     int y = scrollbutton_pos[i].y;
6443     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
6444
6445     if (id == GADGET_ID_SCROLL_LIST_UP ||
6446         id == GADGET_ID_SCROLL_LIST_DOWN)
6447     {
6448       x += PX;
6449       y += PY;
6450     }
6451     else
6452     {
6453       x += SX;
6454       y += SY;
6455     }
6456
6457     gi = CreateGadget(GDI_CUSTOM_ID, id,
6458                       GDI_CUSTOM_TYPE_ID, i,
6459                       GDI_IMAGE_ID, graphic,
6460                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
6461                       GDI_X, x,
6462                       GDI_Y, y,
6463                       GDI_WIDTH, width,
6464                       GDI_HEIGHT, height,
6465                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
6466                       GDI_STATE, GD_BUTTON_UNPRESSED,
6467                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
6468                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
6469                       GDI_EVENT_MASK, event_mask,
6470                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6471                       GDI_CALLBACK_ACTION, HandleControlButtons,
6472                       GDI_END);
6473
6474     if (gi == NULL)
6475       Fail("cannot create gadget");
6476
6477     level_editor_gadget[id] = gi;
6478   }
6479
6480   // create buttons for element list
6481   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
6482   {
6483     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
6484     int graphic = IMG_EDITOR_PALETTE_BUTTON;
6485     struct GraphicInfo *gd = &graphic_info[graphic];
6486     Bitmap *gd_bitmap = gd->bitmap;
6487     Bitmap *deco_bitmap;
6488     int deco_x, deco_y, deco_xpos, deco_ypos;
6489     int gd_x1 = gd->src_x;
6490     int gd_y1 = gd->src_y;
6491     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6492     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6493     int xx = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
6494     int yy = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
6495     int x = PX + ED_ELEMENTLIST_XPOS + xx * gd->width;
6496     int y = PY + ED_ELEMENTLIST_YPOS + yy * gd->height;
6497     int element = editor_elements[i];
6498     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
6499     unsigned int event_mask = GD_EVENT_RELEASED;
6500
6501     getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
6502
6503     deco_xpos = (gd->width  - tile_size) / 2;
6504     deco_ypos = (gd->height - tile_size) / 2;
6505
6506     gi = CreateGadget(GDI_CUSTOM_ID, id,
6507                       GDI_CUSTOM_TYPE_ID, i,
6508                       GDI_IMAGE_ID, graphic,
6509                       GDI_INFO_TEXT, getElementInfoText(element),
6510                       GDI_X, x,
6511                       GDI_Y, y,
6512                       GDI_WIDTH, gd->width,
6513                       GDI_HEIGHT, gd->height,
6514                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
6515                       GDI_STATE, GD_BUTTON_UNPRESSED,
6516                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
6517                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
6518                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
6519                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
6520                       GDI_DECORATION_SIZE, tile_size, tile_size,
6521                       GDI_DECORATION_SHIFTING, 1, 1,
6522                       GDI_EVENT_MASK, event_mask,
6523                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6524                       GDI_CALLBACK_ACTION, HandleControlButtons,
6525                       GDI_END);
6526
6527     if (gi == NULL)
6528       Fail("cannot create gadget");
6529
6530     level_editor_gadget[id] = gi;
6531   }
6532 }
6533
6534 static void CreateCounterButtons(void)
6535 {
6536   int max_infotext_len = getMaxInfoTextLength();
6537   int i;
6538
6539   for (i = 0; i < ED_NUM_COUNTERBUTTONS; i++)
6540   {
6541     int j;
6542     int x = SX + ED_SETTINGS_X(counterbutton_info[i].x); // down count button
6543     int y = SY + ED_SETTINGS_Y(counterbutton_info[i].y);
6544
6545     // determine horizontal position to the right of specified gadget
6546     if (counterbutton_info[i].gadget_id_align != GADGET_ID_NONE)
6547       x = (right_gadget_border[counterbutton_info[i].gadget_id_align] +
6548            ED_GADGET_TEXT_DISTANCE);
6549
6550     // determine horizontal offset for leading text
6551     if (counterbutton_info[i].text_left != NULL)
6552       x += getTextWidthForGadget(counterbutton_info[i].text_left);
6553
6554     for (j = 0; j < 2; j++)
6555     {
6556       struct GadgetInfo *gi;
6557       int id = (j == 0 ?
6558                 counterbutton_info[i].gadget_id_down :
6559                 counterbutton_info[i].gadget_id_up);
6560       int graphic;
6561       struct GraphicInfo *gd;
6562       int gd_x1, gd_x2, gd_y1, gd_y2;
6563       unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
6564       char infotext[max_infotext_len + 1];
6565
6566       if (i == ED_COUNTER_ID_SELECT_LEVEL)
6567       {
6568         graphic = (j == 0 ?
6569                    IMG_GFX_EDITOR_BUTTON_PREV_LEVEL :
6570                    IMG_GFX_EDITOR_BUTTON_NEXT_LEVEL);
6571
6572         event_mask |= GD_EVENT_RELEASED;
6573
6574         if (j == 0)
6575         {
6576           x = DX + editor.button.prev_level.x;
6577           y = DY + editor.button.prev_level.y;
6578         }
6579         else
6580         {
6581           x = DX + editor.button.next_level.x;
6582           y = DY + editor.button.next_level.y;
6583         }
6584       }
6585       else
6586       {
6587         graphic = (j == 0 ?
6588                    IMG_EDITOR_COUNTER_DOWN :
6589                    IMG_EDITOR_COUNTER_UP);
6590       }
6591
6592       gd = &graphic_info[graphic];
6593
6594       gd_x1 = gd->src_x;
6595       gd_y1 = gd->src_y;
6596       gd_x2 = gd->src_x + gd->pressed_xoffset;
6597       gd_y2 = gd->src_y + gd->pressed_yoffset;
6598
6599       sprintf(infotext, "%s counter value by 1, 5 or 10",
6600               (j == 0 ? "decrease" : "increase"));
6601
6602       gi = CreateGadget(GDI_CUSTOM_ID, id,
6603                         GDI_CUSTOM_TYPE_ID, i,
6604                         GDI_IMAGE_ID, graphic,
6605                         GDI_INFO_TEXT, infotext,
6606                         GDI_X, x,
6607                         GDI_Y, y,
6608                         GDI_WIDTH, gd->width,
6609                         GDI_HEIGHT, gd->height,
6610                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
6611                         GDI_STATE, GD_BUTTON_UNPRESSED,
6612                         GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6613                         GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6614                         GDI_EVENT_MASK, event_mask,
6615                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6616                         GDI_CALLBACK_ACTION, HandleCounterButtons,
6617                         GDI_END);
6618
6619       if (gi == NULL)
6620         Fail("cannot create gadget");
6621
6622       level_editor_gadget[id] = gi;
6623       right_gadget_border[id] =
6624         getRightGadgetBorder(gi, counterbutton_info[i].text_right);
6625
6626       x += gi->width + ED_GADGET_SMALL_DISTANCE;        // text count button
6627
6628       if (j == 0)
6629       {
6630         int font_type = FONT_INPUT_1;
6631         int font_type_active = FONT_INPUT_1_ACTIVE;
6632
6633         id = counterbutton_info[i].gadget_id_text;
6634
6635         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6636
6637         if (i == ED_COUNTER_ID_SELECT_LEVEL)
6638         {
6639           graphic = IMG_GFX_EDITOR_INPUT_LEVEL_NUMBER;
6640
6641           font_type = FONT_LEVEL_NUMBER;
6642           font_type_active = FONT_LEVEL_NUMBER_ACTIVE;
6643
6644           x = DX + editor.input.level_number.x;
6645           y = DY + editor.input.level_number.y;
6646         }
6647         else
6648         {
6649           graphic = IMG_EDITOR_COUNTER_INPUT;
6650         }
6651
6652         gd = &graphic_info[graphic];
6653
6654         gd_x1 = gd->src_x;
6655         gd_y1 = gd->src_y;
6656         gd_x2 = gd->src_x + gd->active_xoffset;
6657         gd_y2 = gd->src_y + gd->active_yoffset;
6658
6659         gi = CreateGadget(GDI_CUSTOM_ID, id,
6660                           GDI_CUSTOM_TYPE_ID, i,
6661                           GDI_IMAGE_ID, graphic,
6662                           GDI_INFO_TEXT, "enter counter value",
6663                           GDI_X, x,
6664                           GDI_Y, y,
6665                           GDI_TYPE, GD_TYPE_TEXT_INPUT_NUMERIC,
6666                           GDI_NUMBER_VALUE, 0,
6667                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
6668                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
6669                           GDI_TEXT_SIZE, 3,     // minimal counter text size
6670                           GDI_TEXT_FONT, font_type,
6671                           GDI_TEXT_FONT_ACTIVE, font_type_active,
6672                           GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6673                           GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6674                           GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6675                           GDI_DESIGN_WIDTH, gd->width,
6676                           GDI_EVENT_MASK, event_mask,
6677                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6678                           GDI_CALLBACK_ACTION, HandleCounterButtons,
6679                           GDI_END);
6680
6681         if (gi == NULL)
6682           Fail("cannot create gadget");
6683
6684         level_editor_gadget[id] = gi;
6685         right_gadget_border[id] =
6686           getRightGadgetBorder(gi, counterbutton_info[i].text_right);
6687
6688         x += gi->width + ED_GADGET_SMALL_DISTANCE;      // up count button
6689       }
6690     }
6691   }
6692 }
6693
6694 static void CreateDrawingAreas(void)
6695 {
6696   int i;
6697
6698   // these values are not constant, but can change at runtime
6699   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_xsize = MAX_ED_FIELDX;
6700   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_ysize = MAX_ED_FIELDY;
6701
6702   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
6703   {
6704     struct GadgetInfo *gi;
6705     int id = drawingarea_info[i].gadget_id;
6706     int x = SX + ED_AREA_SETTINGS_X(drawingarea_info[i]);
6707     int y = SY + ED_AREA_SETTINGS_Y(drawingarea_info[i]);
6708     int area_xsize = drawingarea_info[i].area_xsize;
6709     int area_ysize = drawingarea_info[i].area_ysize;
6710     int item_size = (id == GADGET_ID_DRAWING_LEVEL ?
6711                      ed_tilesize : ED_DRAWINGAREA_TILE_SIZE);
6712     unsigned int event_mask =
6713       GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
6714       GD_EVENT_OFF_BORDERS | GD_EVENT_PIXEL_PRECISE;
6715
6716     // determine horizontal position to the right of specified gadget
6717     if (drawingarea_info[i].gadget_id_align != GADGET_ID_NONE)
6718       x = (right_gadget_border[drawingarea_info[i].gadget_id_align] +
6719            ED_DRAWINGAREA_TEXT_DISTANCE);
6720
6721     // determine horizontal offset for leading text
6722     if (drawingarea_info[i].text_left != NULL)
6723       x += getTextWidthForDrawingArea(drawingarea_info[i].text_left);
6724
6725     gi = CreateGadget(GDI_CUSTOM_ID, id,
6726                       GDI_CUSTOM_TYPE_ID, i,
6727                       GDI_X, x,
6728                       GDI_Y, y,
6729                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
6730                       GDI_AREA_SIZE, area_xsize, area_ysize,
6731                       GDI_ITEM_SIZE, item_size, item_size,
6732                       GDI_EVENT_MASK, event_mask,
6733                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
6734                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
6735                       GDI_END);
6736
6737     if (gi == NULL)
6738       Fail("cannot create gadget");
6739
6740     level_editor_gadget[id] = gi;
6741     right_gadget_border[id] =
6742       getRightGadgetBorder(gi, drawingarea_info[i].text_right);
6743   }
6744 }
6745
6746 static void CreateTextInputGadgets(void)
6747 {
6748   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
6749   int max_infotext_len = getMaxInfoTextLength();
6750   int i;
6751
6752   for (i = 0; i < ED_NUM_TEXTINPUT; i++)
6753   {
6754     int gd_x1 = gd->src_x;
6755     int gd_y1 = gd->src_y;
6756     int gd_x2 = gd->src_x + gd->active_xoffset;
6757     int gd_y2 = gd->src_y + gd->active_yoffset;
6758     struct GadgetInfo *gi;
6759     unsigned int event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6760     char infotext[MAX_OUTPUT_LINESIZE + 1];
6761     int id = textinput_info[i].gadget_id;
6762     int x, y;
6763
6764     if (i == ED_TEXTINPUT_ID_ELEMENT_NAME)
6765     {
6766       int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
6767       int border_size = gd->border_size;
6768       int font_nr = FONT_INPUT_1;
6769       int font_height = getFontHeight(font_nr);
6770       int xoffset = element_border + TILEX + element_border + 3 * border_size;
6771       int yoffset = element_border + (TILEY - font_height) / 2;
6772
6773       x = (editor.settings.element_name.x != -1 ?
6774            editor.settings.element_name.x :
6775            editor.settings.element_graphic.x + xoffset) - border_size;
6776       y = (editor.settings.element_name.y != -1 ?
6777            editor.settings.element_name.y :
6778            editor.settings.element_graphic.y + yoffset) - border_size;
6779     }
6780     else
6781     {
6782       x = ED_SETTINGS_X(textinput_info[i].x);
6783       y = ED_SETTINGS_Y(textinput_info[i].y);
6784     }
6785
6786     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
6787     infotext[max_infotext_len] = '\0';
6788
6789     gi = CreateGadget(GDI_CUSTOM_ID, id,
6790                       GDI_CUSTOM_TYPE_ID, i,
6791                       GDI_INFO_TEXT, infotext,
6792                       GDI_X, SX + x,
6793                       GDI_Y, SY + y,
6794                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
6795                       GDI_TEXT_VALUE, textinput_info[i].value,
6796                       GDI_TEXT_SIZE, textinput_info[i].size,
6797                       GDI_TEXT_FONT, FONT_INPUT_1,
6798                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6799                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6800                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6801                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6802                       GDI_DESIGN_WIDTH, gd->width,
6803                       GDI_EVENT_MASK, event_mask,
6804                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6805                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
6806                       GDI_END);
6807
6808     if (gi == NULL)
6809       Fail("cannot create gadget");
6810
6811     level_editor_gadget[id] = gi;
6812   }
6813 }
6814
6815 static void CreateTextAreaGadgets(void)
6816 {
6817   int max_infotext_len = getMaxInfoTextLength();
6818   int i;
6819
6820   for (i = 0; i < ED_NUM_TEXTAREAS; i++)
6821   {
6822     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXTAREA];
6823     int gd_x1 = gd->src_x;
6824     int gd_y1 = gd->src_y;
6825     int gd_x2 = gd->src_x + gd->active_xoffset;
6826     int gd_y2 = gd->src_y + gd->active_yoffset;
6827     struct GadgetInfo *gi;
6828     unsigned int event_mask = GD_EVENT_TEXT_LEAVING;
6829     char infotext[MAX_OUTPUT_LINESIZE + 1];
6830     int id = textarea_info[i].gadget_id;
6831     int area_xsize = textarea_info[i].xsize;
6832     int area_ysize = textarea_info[i].ysize;
6833
6834     sprintf(infotext, "Enter %s", textarea_info[i].infotext);
6835     infotext[max_infotext_len] = '\0';
6836
6837     gi = CreateGadget(GDI_CUSTOM_ID, id,
6838                       GDI_CUSTOM_TYPE_ID, i,
6839                       GDI_INFO_TEXT, infotext,
6840                       GDI_X, SX + ED_SETTINGS_X(textarea_info[i].x),
6841                       GDI_Y, SY + ED_SETTINGS_Y(textarea_info[i].y),
6842                       GDI_TYPE, GD_TYPE_TEXT_AREA,
6843                       GDI_AREA_SIZE, area_xsize, area_ysize,
6844                       GDI_TEXT_FONT, FONT_INPUT_1,
6845                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6846                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6847                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6848                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6849                       GDI_DESIGN_WIDTH, gd->width,
6850                       GDI_EVENT_MASK, event_mask,
6851                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6852                       GDI_CALLBACK_ACTION, HandleTextAreaGadgets,
6853                       GDI_END);
6854
6855     if (gi == NULL)
6856       Fail("cannot create gadget");
6857
6858     level_editor_gadget[id] = gi;
6859   }
6860 }
6861
6862 static void CreateSelectboxGadgets(void)
6863 {
6864   int max_infotext_len = getMaxInfoTextLength();
6865   int i, j;
6866
6867   for (i = 0; i < ED_NUM_SELECTBOX; i++)
6868   {
6869     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_SELECTBOX_INPUT];
6870     struct GraphicInfo *gd2 = &graphic_info[IMG_EDITOR_SELECTBOX_BUTTON];
6871     int gd_x1 = gd->src_x;
6872     int gd_y1 = gd->src_y;
6873     int gd_x2 = gd->src_x + gd->active_xoffset;
6874     int gd_y2 = gd->src_y + gd->active_yoffset;
6875     int selectbox_button_xsize = gd2->width;
6876     struct GadgetInfo *gi;
6877     char infotext[MAX_OUTPUT_LINESIZE + 1];
6878     int id = selectbox_info[i].gadget_id;
6879     int x = SX + ED_SETTINGS_X(selectbox_info[i].x);
6880     int y = SY + ED_SETTINGS_Y(selectbox_info[i].y);
6881     unsigned int event_mask =
6882       GD_EVENT_RELEASED | GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
6883
6884     if (selectbox_info[i].size == -1)   // dynamically determine size
6885     {
6886       // (we cannot use -1 for uninitialized values if we directly compare
6887       // with results from strlen(), because the '<' and '>' operation will
6888       // implicitely cast -1 to an unsigned integer value!)
6889       selectbox_info[i].size = 0;
6890
6891       for (j = 0; selectbox_info[i].options[j].text != NULL; j++)
6892         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
6893           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
6894
6895       selectbox_info[i].size++;         // add one character empty space
6896     }
6897
6898     // determine horizontal position to the right of specified gadget
6899     if (selectbox_info[i].gadget_id_align != GADGET_ID_NONE)
6900       x = (right_gadget_border[selectbox_info[i].gadget_id_align] +
6901            ED_GADGET_TEXT_DISTANCE);
6902
6903     // determine horizontal offset for leading text
6904     if (selectbox_info[i].text_left != NULL)
6905       x += getTextWidthForGadget(selectbox_info[i].text_left);
6906
6907     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
6908     infotext[max_infotext_len] = '\0';
6909
6910     gi = CreateGadget(GDI_CUSTOM_ID, id,
6911                       GDI_CUSTOM_TYPE_ID, i,
6912                       GDI_INFO_TEXT, infotext,
6913                       GDI_X, x,
6914                       GDI_Y, y,
6915                       GDI_TYPE, GD_TYPE_SELECTBOX,
6916                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
6917                       GDI_SELECTBOX_CHAR_UNSELECTABLE, '[',
6918                       GDI_TEXT_SIZE, selectbox_info[i].size,
6919                       GDI_TEXT_FONT, FONT_INPUT_1,
6920                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
6921                       GDI_TEXT_FONT_UNSELECTABLE, FONT_TEXT_1,
6922                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6923                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6924                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
6925                       GDI_BORDER_SIZE_SELECTBUTTON, selectbox_button_xsize,
6926                       GDI_DESIGN_WIDTH, gd->width,
6927                       GDI_EVENT_MASK, event_mask,
6928                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6929                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
6930                       GDI_END);
6931
6932     if (gi == NULL)
6933       Fail("cannot create gadget");
6934
6935     level_editor_gadget[id] = gi;
6936     right_gadget_border[id] =
6937       getRightGadgetBorder(gi, selectbox_info[i].text_right);
6938   }
6939 }
6940
6941 static void CreateTextbuttonGadgets(void)
6942 {
6943   int max_infotext_len = getMaxInfoTextLength();
6944   int i;
6945
6946   for (i = 0; i < ED_NUM_TEXTBUTTONS; i++)
6947   {
6948     int id = textbutton_info[i].gadget_id;
6949     int is_tab_button =
6950       ((id >= GADGET_ID_LEVELINFO_LEVEL && id <= GADGET_ID_LEVELINFO_EDITOR) ||
6951        (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_CHANGE));
6952     int graphic =
6953       (is_tab_button ? IMG_EDITOR_TABBUTTON : IMG_EDITOR_TEXTBUTTON);
6954     int gadget_distance =
6955       (is_tab_button ? ED_GADGET_SMALL_DISTANCE : ED_GADGET_TEXT_DISTANCE);
6956     struct GraphicInfo *gd = &graphic_info[graphic];
6957     int gd_x1 = gd->src_x;
6958     int gd_y1 = gd->src_y;
6959     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6960     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6961     int gd_x1a = gd->src_x + gd->active_xoffset;
6962     int gd_y1a = gd->src_y + gd->active_yoffset;
6963     int border_xsize = gd->border_size + gd->draw_xoffset;
6964     int border_ysize = gd->border_size;
6965     struct GadgetInfo *gi;
6966     unsigned int event_mask = GD_EVENT_RELEASED;
6967     char infotext[MAX_OUTPUT_LINESIZE + 1];
6968     int x = SX + ED_SETTINGS_X(textbutton_info[i].x);
6969     int y = SY + ED_SETTINGS_Y(textbutton_info[i].y);
6970
6971     if (textbutton_info[i].size == -1)  // dynamically determine size
6972       textbutton_info[i].size = strlen(textbutton_info[i].text);
6973
6974     sprintf(infotext, "%s", textbutton_info[i].infotext);
6975     infotext[max_infotext_len] = '\0';
6976
6977     // determine horizontal position to the right of specified gadget
6978     if (textbutton_info[i].gadget_id_align != GADGET_ID_NONE)
6979     {
6980       int gadget_id_align = textbutton_info[i].gadget_id_align;
6981
6982       x = right_gadget_border[gadget_id_align] + gadget_distance;
6983
6984       if (textbutton_info[i].y == -1)
6985         y = level_editor_gadget[gadget_id_align]->y;
6986     }
6987
6988     // determine horizontal offset for leading text
6989     if (textbutton_info[i].text_left != NULL)
6990       x += getTextWidthForGadget(textbutton_info[i].text_left);
6991
6992     gi = CreateGadget(GDI_CUSTOM_ID, id,
6993                       GDI_CUSTOM_TYPE_ID, i,
6994                       GDI_IMAGE_ID, graphic,
6995                       GDI_INFO_TEXT, infotext,
6996                       GDI_X, x,
6997                       GDI_Y, y,
6998                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
6999                       GDI_TEXT_VALUE, textbutton_info[i].text,
7000                       GDI_TEXT_SIZE, textbutton_info[i].size,
7001                       GDI_TEXT_FONT, FONT_INPUT_2,
7002                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2_ACTIVE,
7003                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7004                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7005                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7006                       GDI_BORDER_SIZE, border_xsize, border_ysize,
7007                       GDI_DESIGN_WIDTH, gd->width,
7008                       GDI_DECORATION_SHIFTING, 1, 1,
7009                       GDI_EVENT_MASK, event_mask,
7010                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7011                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
7012                       GDI_END);
7013
7014     if (gi == NULL)
7015       Fail("cannot create gadget");
7016
7017     level_editor_gadget[id] = gi;
7018     right_gadget_border[id] =
7019       getRightGadgetBorder(gi, textbutton_info[i].text_right);
7020   }
7021 }
7022
7023 static void CreateGraphicbuttonGadgets(void)
7024 {
7025   struct GadgetInfo *gi;
7026   int i;
7027
7028   // create buttons for scrolling of drawing area and element list
7029   for (i = 0; i < ED_NUM_GRAPHICBUTTONS; i++)
7030   {
7031     int id = graphicbutton_info[i].gadget_id;
7032     int x = SX + ED_SETTINGS_X(graphicbutton_info[i].x);
7033     int y = SY + ED_SETTINGS_Y(graphicbutton_info[i].y);
7034     int graphic = graphicbutton_info[i].graphic;
7035     struct GraphicInfo *gd = &graphic_info[graphic];
7036     int gd_x1 = gd->src_x;
7037     int gd_y1 = gd->src_y;
7038     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7039     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7040     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
7041
7042     // determine horizontal position to the right of specified gadget
7043     if (graphicbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7044       x = (right_gadget_border[graphicbutton_info[i].gadget_id_align] +
7045            ED_GADGET_TEXT_DISTANCE);
7046
7047     // determine horizontal offset for leading text
7048     if (graphicbutton_info[i].text_left != NULL)
7049       x += getTextWidthForGadget(graphicbutton_info[i].text_left);
7050
7051     gi = CreateGadget(GDI_CUSTOM_ID, id,
7052                       GDI_CUSTOM_TYPE_ID, i,
7053                       GDI_IMAGE_ID, graphic,
7054                       GDI_INFO_TEXT, graphicbutton_info[i].infotext,
7055                       GDI_X, x,
7056                       GDI_Y, y,
7057                       GDI_WIDTH, gd->width,
7058                       GDI_HEIGHT, gd->height,
7059                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
7060                       GDI_STATE, GD_BUTTON_UNPRESSED,
7061                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7062                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7063                       GDI_EVENT_MASK, event_mask,
7064                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7065                       GDI_CALLBACK_ACTION, HandleGraphicbuttonGadgets,
7066                       GDI_END);
7067
7068     if (gi == NULL)
7069       Fail("cannot create gadget");
7070
7071     level_editor_gadget[id] = gi;
7072     right_gadget_border[id] =
7073       getRightGadgetBorder(gi, graphicbutton_info[i].text_right);
7074   }
7075 }
7076
7077 static void CreateScrollbarGadgets(void)
7078 {
7079   int i;
7080
7081   // these values are not constant, but can change at runtime
7082   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].x =
7083     SX + ED_SCROLL_HORIZONTAL_XPOS;
7084   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].y =
7085     SY + ED_SCROLL_HORIZONTAL_YPOS;
7086   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width =
7087     ED_SCROLL_HORIZONTAL_XSIZE;
7088   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].height =
7089     ED_SCROLL_HORIZONTAL_YSIZE;
7090   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_x      = SX;
7091   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_y      = SY;
7092   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_width  = SXSIZE;
7093   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_height = SYSIZE;
7094
7095   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].x =
7096     SX + ED_SCROLL_VERTICAL_XPOS;
7097   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].y =
7098     SY + ED_SCROLL_VERTICAL_YPOS;
7099   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].width =
7100     ED_SCROLL_VERTICAL_XSIZE;
7101   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].height =
7102     ED_SCROLL_VERTICAL_YSIZE;
7103   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_x      = SX;
7104   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_y      = SY;
7105   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_width  = SXSIZE;
7106   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_height = SYSIZE;
7107
7108   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].x =
7109     PX + ED_SCROLL2_VERTICAL_XPOS;
7110   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].y =
7111     PY + ED_SCROLL2_VERTICAL_YPOS;
7112   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].width =
7113     ED_SCROLL2_VERTICAL_XSIZE;
7114   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].height =
7115     ED_SCROLL2_VERTICAL_YSIZE;
7116   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_x = PX;
7117   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_y = PY;
7118   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_width  = PXSIZE;
7119   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_height = PYSIZE;
7120
7121   for (i = 0; i < ED_NUM_SCROLLBARS; i++)
7122   {
7123     int id = scrollbar_info[i].gadget_id;
7124     int graphic = scrollbar_info[i].graphic;
7125     struct GraphicInfo *gd = &graphic_info[graphic];
7126     int gd_x1 = gd->src_x;
7127     int gd_y1 = gd->src_y;
7128     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7129     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7130     struct GadgetInfo *gi;
7131     int items_max, items_visible, item_position;
7132     unsigned int event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
7133
7134     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
7135     {
7136       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
7137       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
7138       item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
7139     }
7140     else        // drawing area scrollbars
7141     {
7142       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
7143       {
7144         items_max = MAX(lev_fieldx + 2, ed_fieldx);
7145         items_visible = ed_fieldx;
7146         item_position = 0;
7147       }
7148       else
7149       {
7150         items_max = MAX(lev_fieldy + 2, ed_fieldy);
7151         items_visible = ed_fieldy;
7152         item_position = 0;
7153       }
7154     }
7155
7156     gi = CreateGadget(GDI_CUSTOM_ID, id,
7157                       GDI_CUSTOM_TYPE_ID, i,
7158                       GDI_IMAGE_ID, graphic,
7159                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
7160                       GDI_X, scrollbar_pos[i].x,
7161                       GDI_Y, scrollbar_pos[i].y,
7162                       GDI_WIDTH, scrollbar_pos[i].width,
7163                       GDI_HEIGHT, scrollbar_pos[i].height,
7164                       GDI_TYPE, scrollbar_info[i].type,
7165                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
7166                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
7167                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
7168                       GDI_WHEEL_AREA_X, scrollbar_pos[i].wheel_x,
7169                       GDI_WHEEL_AREA_Y, scrollbar_pos[i].wheel_y,
7170                       GDI_WHEEL_AREA_WIDTH, scrollbar_pos[i].wheel_width,
7171                       GDI_WHEEL_AREA_HEIGHT, scrollbar_pos[i].wheel_height,
7172                       GDI_STATE, GD_BUTTON_UNPRESSED,
7173                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7174                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7175                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
7176                       GDI_EVENT_MASK, event_mask,
7177                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7178                       GDI_CALLBACK_ACTION, HandleControlButtons,
7179                       GDI_END);
7180
7181     if (gi == NULL)
7182       Fail("cannot create gadget");
7183
7184     level_editor_gadget[id] = gi;
7185   }
7186 }
7187
7188 static void CreateCheckbuttonGadgets(void)
7189 {
7190   struct GadgetInfo *gi;
7191   int i;
7192
7193   for (i = 0; i < ED_NUM_CHECKBUTTONS; i++)
7194   {
7195     int id = checkbutton_info[i].gadget_id;
7196     int graphic = (id == GADGET_ID_STICK_ELEMENT ? IMG_EDITOR_STICKYBUTTON :
7197                    IMG_EDITOR_CHECKBOX);
7198     struct GraphicInfo *gd = &graphic_info[graphic];
7199     int gd_x1 = gd->src_x;
7200     int gd_y1 = gd->src_y;
7201     int gd_x2 = gd->src_x + gd->pressed_xoffset;
7202     int gd_y2 = gd->src_y + gd->pressed_yoffset;
7203     int gd_x1a = gd->src_x + gd->active_xoffset;
7204     int gd_y1a = gd->src_y + gd->active_yoffset;
7205     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7206     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7207     int x = SX + ED_SETTINGS_X(checkbutton_info[i].x);
7208     int y = SY + ED_SETTINGS_Y(checkbutton_info[i].y);
7209     unsigned int event_mask = GD_EVENT_PRESSED;
7210
7211     // determine horizontal position to the right of specified gadget
7212     if (checkbutton_info[i].gadget_id_align != GADGET_ID_NONE)
7213       x = (right_gadget_border[checkbutton_info[i].gadget_id_align] +
7214            ED_GADGET_TEXT_DISTANCE);
7215
7216     // determine horizontal offset for leading text
7217     if (checkbutton_info[i].text_left != NULL)
7218       x += getTextWidthForGadget(checkbutton_info[i].text_left);
7219
7220     gi = CreateGadget(GDI_CUSTOM_ID, id,
7221                       GDI_CUSTOM_TYPE_ID, i,
7222                       GDI_IMAGE_ID, graphic,
7223                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
7224                       GDI_X, x,
7225                       GDI_Y, y,
7226                       GDI_WIDTH, gd->width,
7227                       GDI_HEIGHT, gd->height,
7228                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
7229                       GDI_CHECKED, *checkbutton_info[i].value,
7230                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7231                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7232                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7233                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7234                       GDI_EVENT_MASK, event_mask,
7235                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7236                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
7237                       GDI_END);
7238
7239     if (gi == NULL)
7240       Fail("cannot create gadget");
7241
7242     level_editor_gadget[id] = gi;
7243     right_gadget_border[id] =
7244       getRightGadgetBorder(gi, checkbutton_info[i].text_right);
7245   }
7246 }
7247
7248 static void CreateRadiobuttonGadgets(void)
7249 {
7250   int graphic = IMG_EDITOR_RADIOBUTTON;
7251   struct GraphicInfo *gd = &graphic_info[graphic];
7252   int gd_x1 = gd->src_x;
7253   int gd_y1 = gd->src_y;
7254   int gd_x2 = gd->src_x + gd->pressed_xoffset;
7255   int gd_y2 = gd->src_y + gd->pressed_yoffset;
7256   int gd_x1a = gd->src_x + gd->active_xoffset;
7257   int gd_y1a = gd->src_y + gd->active_yoffset;
7258   int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
7259   int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
7260   struct GadgetInfo *gi;
7261   int i;
7262
7263   for (i = 0; i < ED_NUM_RADIOBUTTONS; i++)
7264   {
7265     int id = radiobutton_info[i].gadget_id;
7266     int x = SX + ED_SETTINGS_X(radiobutton_info[i].x);
7267     int y = SY + ED_SETTINGS_Y(radiobutton_info[i].y);
7268     unsigned int event_mask = GD_EVENT_PRESSED;
7269
7270     int checked =
7271       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
7272
7273     // determine horizontal position to the right of specified gadget
7274     if (radiobutton_info[i].gadget_id_align != GADGET_ID_NONE)
7275       x = (right_gadget_border[radiobutton_info[i].gadget_id_align] +
7276            ED_GADGET_TEXT_DISTANCE);
7277
7278     // determine horizontal offset for leading text
7279     if (radiobutton_info[i].text_left != NULL)
7280       x += getTextWidthForGadget(radiobutton_info[i].text_left);
7281
7282     gi = CreateGadget(GDI_CUSTOM_ID, id,
7283                       GDI_CUSTOM_TYPE_ID, i,
7284                       GDI_IMAGE_ID, graphic,
7285                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
7286                       GDI_X, x,
7287                       GDI_Y, y,
7288                       GDI_WIDTH, gd->width,
7289                       GDI_HEIGHT, gd->height,
7290                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
7291                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
7292                       GDI_CHECKED, checked,
7293                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
7294                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
7295                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
7296                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
7297                       GDI_EVENT_MASK, event_mask,
7298                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
7299                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
7300                       GDI_END);
7301
7302     if (gi == NULL)
7303       Fail("cannot create gadget");
7304
7305     level_editor_gadget[id] = gi;
7306     right_gadget_border[id] =
7307       getRightGadgetBorder(gi, radiobutton_info[i].text_right);
7308   }
7309 }
7310
7311 void CreateLevelEditorGadgets(void)
7312 {
7313   // force EDITOR font inside level editor
7314   SetFontStatus(GAME_MODE_EDITOR);
7315
7316   // these values are not constant, but can change at runtime
7317   ed_fieldx = MAX_ED_FIELDX - 1;
7318   ed_fieldy = MAX_ED_FIELDY - 1;
7319
7320   num_editor_gadgets = NUM_EDITOR_GADGETS;
7321
7322   // Debug("editor", "allocating %d gadgets ...\n", num_editor_gadgets);
7323
7324   level_editor_gadget =
7325     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
7326   right_gadget_border =
7327     checked_calloc(num_editor_gadgets * sizeof(int));
7328
7329   // set number of empty (padding) element buttons to maximum number of buttons
7330   num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS;
7331
7332   editor_el_empty = checked_calloc(num_editor_el_empty * sizeof(int));
7333   editor_el_empty_ptr = editor_el_empty;
7334
7335   use_permanent_palette = !editor.palette.show_as_separate_screen;
7336
7337   InitGadgetScreenBorders(-1, INFOTEXT_YPOS);
7338
7339   ReinitializeElementList();
7340
7341   CreateControlButtons();
7342   CreateScrollbarGadgets();
7343
7344   // order of function calls is important because of cross-references
7345   CreateCheckbuttonGadgets();
7346   CreateCounterButtons();
7347   CreateRadiobuttonGadgets();
7348   CreateTextInputGadgets();
7349   CreateTextAreaGadgets();
7350   CreateSelectboxGadgets();
7351   CreateGraphicbuttonGadgets();
7352   CreateTextbuttonGadgets();
7353   CreateDrawingAreas();
7354
7355   ResetFontStatus();
7356 }
7357
7358 void FreeLevelEditorGadgets(void)
7359 {
7360   int i;
7361
7362   // Debug("editor", "freeing %d gadgets ...\n", num_editor_gadgets);
7363
7364   for (i = 0; i < num_editor_gadgets; i++)
7365   {
7366     FreeGadget(level_editor_gadget[i]);
7367
7368     level_editor_gadget[i] = NULL;
7369   }
7370
7371   checked_free(level_editor_gadget);
7372   checked_free(right_gadget_border);
7373
7374   checked_free(editor_el_empty);
7375 }
7376
7377 static void MapCounterButtons(int id)
7378 {
7379   int font_nr = FONT_TEXT_1;
7380   int font_height = getFontHeight(font_nr);
7381   int gadget_id_down = counterbutton_info[id].gadget_id_down;
7382   int gadget_id_text = counterbutton_info[id].gadget_id_text;
7383   int gadget_id_up   = counterbutton_info[id].gadget_id_up;
7384   struct GadgetInfo *gi_down = level_editor_gadget[gadget_id_down];
7385   struct GadgetInfo *gi_text = level_editor_gadget[gadget_id_text];
7386   struct GadgetInfo *gi_up   = level_editor_gadget[gadget_id_up];
7387   int xoffset_left = getTextWidthForGadget(counterbutton_info[id].text_left);
7388   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7389   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7390   int yoffset = (gi_down->height - font_height) / 2;
7391   int x_left = gi_down->x - xoffset_left;
7392   int x_right;  // set after gadget position was modified
7393   int y_above = gi_down->y - yoffset_above;
7394   int x = gi_down->x;
7395   int y;        // set after gadget position was modified
7396
7397   // counter limits must be changed first to prevent value truncation
7398   ModifyEditorCounterLimits(id, counterbutton_info[id].min_value,
7399                             counterbutton_info[id].max_value);
7400
7401   // right text position might have changed after setting position above
7402   x_right = gi_up->x + gi_up->width + xoffset_right;
7403
7404   ModifyEditorCounterValue(id, *counterbutton_info[id].value);
7405
7406   // set position for "value[1,2,3,4]" counter gadgets (score in most cases)
7407   if (id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
7408       id <= ED_COUNTER_ID_ELEMENT_VALUE4)
7409   {
7410     ModifyGadget(gi_down, GDI_Y,
7411                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
7412     ModifyGadget(gi_text, GDI_Y,
7413                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
7414     ModifyGadget(gi_up,   GDI_Y,
7415                  SY + ED_SETTINGS_Y(counterbutton_info[id].y), GDI_END);
7416   }
7417
7418   // vertical position might have changed after setting position above
7419   y = gi_up->y + yoffset;
7420
7421   if (counterbutton_info[id].text_above)
7422     DrawText(x, y_above, counterbutton_info[id].text_above, font_nr);
7423
7424   if (counterbutton_info[id].text_left)
7425     DrawText(x_left, y, counterbutton_info[id].text_left, font_nr);
7426
7427   if (counterbutton_info[id].text_right)
7428     DrawText(x_right, y, counterbutton_info[id].text_right, font_nr);
7429
7430   MapGadget(gi_down);
7431   MapGadget(gi_text);
7432   MapGadget(gi_up);
7433 }
7434
7435 static void MapControlButtons(void)
7436 {
7437   int counter_id;
7438   int i;
7439
7440   // map toolbox buttons (excluding special CE toolbox buttons)
7441   for (i = 0; i < ED_NUM_CTRL1_2_BUTTONS; i++)
7442     MapGadget(level_editor_gadget[i]);
7443
7444   // map toolbox buttons (element properties buttons)
7445   for (i = ED_NUM_CTRL1_4_BUTTONS; i < ED_NUM_CTRL1_7_BUTTONS; i++)
7446     MapGadget(level_editor_gadget[i]);
7447
7448   if (use_permanent_palette)
7449   {
7450     // map buttons to select elements
7451     for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7452       MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
7453     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
7454     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
7455     MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
7456   }
7457
7458   // map buttons to select level
7459   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
7460   counterbutton_info[counter_id].min_value = leveldir_current->first_level;
7461   counterbutton_info[counter_id].max_value = leveldir_current->last_level;
7462   MapCounterButtons(counter_id);
7463 }
7464
7465 static void MapDrawingArea(int id)
7466 {
7467   int font_nr = FONT_TEXT_1;
7468   int font_height = getFontHeight(font_nr);
7469   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
7470   int area_xsize = gi->drawing.area_xsize;
7471   int area_ysize = gi->drawing.area_ysize;
7472   int xoffset_left = getTextWidthForDrawingArea(drawingarea_info[id].text_left);
7473   int xoffset_below = getTextWidth(drawingarea_info[id].text_below, font_nr);
7474   int x_left  = gi->x - xoffset_left;
7475   int x_right = gi->x + gi->width + ED_DRAWINGAREA_TEXT_DISTANCE;
7476   int x_above = gi->x - ED_DRAWINGAREA_BORDER_SIZE;
7477   int x_below = gi->x + (gi->width - xoffset_below) / 2;
7478   int y_side  = gi->y + (gi->height - font_height) / 2;
7479   int y_above = gi->y - font_height - ED_DRAWINGAREA_TEXT_DISTANCE;
7480   int y_below = gi->y + gi->height + ED_DRAWINGAREA_TEXT_DISTANCE;
7481
7482   if (drawingarea_info[id].text_left)
7483     DrawText(x_left, y_side, drawingarea_info[id].text_left, font_nr);
7484
7485   if (drawingarea_info[id].text_right)
7486     DrawText(x_right, y_side, drawingarea_info[id].text_right, font_nr);
7487
7488   if (drawingarea_info[id].text_above)
7489     DrawText(x_above, y_above, drawingarea_info[id].text_above, font_nr);
7490
7491   if (drawingarea_info[id].text_below)
7492     DrawText(x_below, y_below, drawingarea_info[id].text_below, font_nr);
7493
7494   if (id != ED_DRAWING_ID_DRAWING_LEVEL)
7495   {
7496     DrawElementBorder(gi->x, gi->y,
7497                       area_xsize * ED_DRAWINGAREA_TILE_SIZE,
7498                       area_ysize * ED_DRAWINGAREA_TILE_SIZE, TRUE);
7499
7500     DrawDrawingArea(id);
7501   }
7502
7503   MapGadget(gi);
7504 }
7505
7506 static void MapTextInputGadget(int id)
7507 {
7508   int font_nr = FONT_TEXT_1;
7509   int font_height = getFontHeight(font_nr);
7510   struct GadgetInfo *gi = level_editor_gadget[textinput_info[id].gadget_id];
7511   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7512   int x_above = ED_SETTINGS_X(textinput_info[id].x);
7513   int y_above = ED_SETTINGS_Y(textinput_info[id].y) - yoffset_above;
7514
7515   if (textinput_info[id].text_above)
7516     DrawTextS(x_above, y_above, font_nr, textinput_info[id].text_above);
7517
7518   ModifyGadget(gi, GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
7519
7520   MapGadget(gi);
7521 }
7522
7523 static void MapTextAreaGadget(int id)
7524 {
7525   int font_nr = FONT_TEXT_1;
7526   int font_height = getFontHeight(font_nr);
7527   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
7528   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7529   int x_above = ED_SETTINGS_X(textarea_info[id].x);
7530   int y_above = ED_SETTINGS_Y(textarea_info[id].y) - yoffset_above;
7531   char *text_above = textarea_info[id].text_above;
7532
7533   if (gi->textarea.cropped && textarea_info[id].text_above_cropped)
7534     text_above = textarea_info[id].text_above_cropped;
7535
7536   if (text_above)
7537     DrawTextS(x_above, y_above, font_nr, text_above);
7538
7539   ModifyGadget(gi, GDI_TEXT_VALUE, textarea_info[id].value, GDI_END);
7540
7541   MapGadget(gi);
7542 }
7543
7544 static void MapSelectboxGadget(int id)
7545 {
7546   int font_nr = FONT_TEXT_1;
7547   int font_height = getFontHeight(font_nr);
7548   struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
7549   int xoffset_left = getTextWidthForGadget(selectbox_info[id].text_left);
7550   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7551   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7552   int yoffset = (gi->height - font_height) / 2;
7553   int x_left = gi->x - xoffset_left;
7554   int x_right = gi->x + gi->width + xoffset_right;
7555   int y_above = gi->y - yoffset_above;
7556   int x = gi->x;
7557   int y = gi->y + yoffset;
7558
7559   if (selectbox_info[id].text_above)
7560     DrawText(x, y_above, selectbox_info[id].text_above, font_nr);
7561
7562   if (selectbox_info[id].text_left)
7563     DrawText(x_left, y, selectbox_info[id].text_left, font_nr);
7564
7565   if (selectbox_info[id].text_right)
7566     DrawText(x_right, y, selectbox_info[id].text_right, font_nr);
7567
7568   ModifyEditorSelectboxValue(id, *selectbox_info[id].value);
7569
7570   MapGadget(gi);
7571 }
7572
7573 static void MapTextbuttonGadget(int id)
7574 {
7575   int font_nr = FONT_TEXT_1;
7576   int font_height = getFontHeight(font_nr);
7577   struct GadgetInfo *gi = level_editor_gadget[textbutton_info[id].gadget_id];
7578   int xoffset_left = getTextWidthForGadget(textbutton_info[id].text_left);
7579   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7580   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7581   int yoffset = (gi->height - font_height) / 2;
7582   int x_left = gi->x - xoffset_left;
7583   int x_right = gi->x + gi->width + xoffset_right;
7584   int y_above = gi->y - yoffset_above;
7585   int x = gi->x;
7586   int y = gi->y + yoffset;
7587
7588   // only show button to delete change pages when more than minimum pages
7589   if (id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
7590       custom_element.num_change_pages == MIN_CHANGE_PAGES)
7591     return;
7592
7593   if (textbutton_info[id].text_above)
7594     DrawText(x, y_above, textbutton_info[id].text_above, font_nr);
7595
7596   if (textbutton_info[id].text_left)
7597     DrawText(x_left, y, textbutton_info[id].text_left, font_nr);
7598
7599   if (textbutton_info[id].text_right)
7600     DrawText(x_right, y, textbutton_info[id].text_right, font_nr);
7601
7602   MapGadget(gi);
7603 }
7604
7605 static void MapGraphicbuttonGadget(int id)
7606 {
7607   int font_nr = FONT_TEXT_1;
7608   int font_height = getFontHeight(font_nr);
7609   struct GadgetInfo *gi= level_editor_gadget[graphicbutton_info[id].gadget_id];
7610   int xoffset_left = getTextWidthForGadget(graphicbutton_info[id].text_left);
7611   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7612   int yoffset = (gi->height - font_height) / 2;
7613   int x_left = gi->x - xoffset_left;
7614   int x_right = gi->x + gi->width + xoffset_right;
7615   int y = gi->y + yoffset;
7616
7617   if (graphicbutton_info[id].text_left)
7618     DrawText(x_left, y, graphicbutton_info[id].text_left, font_nr);
7619
7620   if (graphicbutton_info[id].text_right)
7621     DrawText(x_right, y, graphicbutton_info[id].text_right, font_nr);
7622
7623   MapGadget(gi);
7624 }
7625
7626 static void MapRadiobuttonGadget(int id)
7627 {
7628   int font_nr = FONT_TEXT_1;
7629   int font_height = getFontHeight(font_nr);
7630   struct GadgetInfo *gi = level_editor_gadget[radiobutton_info[id].gadget_id];
7631   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
7632   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7633   int yoffset = (gi->height - font_height) / 2;
7634   int x_left = gi->x - xoffset_left;
7635   int x_right = gi->x + gi->width + xoffset_right;
7636   int y = gi->y + yoffset;
7637   boolean checked =
7638     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
7639
7640   if (radiobutton_info[id].text_left)
7641     DrawText(x_left, y, radiobutton_info[id].text_left, font_nr);
7642
7643   if (radiobutton_info[id].text_right)
7644     DrawText(x_right, y, radiobutton_info[id].text_right, font_nr);
7645
7646   ModifyGadget(gi, GDI_CHECKED, checked, GDI_END);
7647
7648   MapGadget(gi);
7649 }
7650
7651 static void MapCheckbuttonGadget(int id)
7652 {
7653   int font_nr = FONT_TEXT_1;
7654   int font_height = getFontHeight(font_nr);
7655   struct GadgetInfo *gi = level_editor_gadget[checkbutton_info[id].gadget_id];
7656   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
7657   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
7658   int yoffset_above = font_height + ED_GADGET_LINE_DISTANCE;
7659   int yoffset = (gi->height - font_height) / 2;
7660   int y_above = gi->y - yoffset_above;
7661   int x = gi->x;
7662   int x_left, x_right, y;       // set after gadget position was modified
7663
7664   // set position for gadgets with dynamically determined position
7665   if (checkbutton_info[id].x != -1)     // do not change dynamic positions
7666     ModifyGadget(gi, GDI_X, SX + ED_SETTINGS_X(checkbutton_info[id].x),GDI_END);
7667   ModifyGadget(gi, GDI_Y, SY + ED_SETTINGS_Y(checkbutton_info[id].y), GDI_END);
7668
7669   x_left = gi->x - xoffset_left;
7670   x_right = gi->x + gi->width + xoffset_right;
7671   y = gi->y + yoffset;
7672
7673   if (checkbutton_info[id].text_above)
7674     DrawText(x, y_above, checkbutton_info[id].text_above, font_nr);
7675
7676   if (checkbutton_info[id].text_left)
7677     DrawText(x_left, y, checkbutton_info[id].text_left, font_nr);
7678
7679   if (checkbutton_info[id].text_right)
7680     DrawText(x_right, y, checkbutton_info[id].text_right, font_nr);
7681
7682   ModifyGadget(gi, GDI_CHECKED, *checkbutton_info[id].value, GDI_END);
7683
7684   MapGadget(gi);
7685 }
7686
7687 static void MapMainDrawingArea(void)
7688 {
7689   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
7690   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
7691   int i;
7692
7693   if (suppressBorderElement())
7694   {
7695     no_horizontal_scrollbar = (lev_fieldx <= ed_fieldx);
7696     no_vertical_scrollbar   = (lev_fieldy <= ed_fieldy);
7697   }
7698
7699   for (i=ED_SCROLLBUTTON_ID_AREA_FIRST; i <= ED_SCROLLBUTTON_ID_AREA_LAST; i++)
7700   {
7701     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
7702           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
7703          no_horizontal_scrollbar) ||
7704         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
7705           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
7706          no_vertical_scrollbar))
7707       continue;
7708
7709     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
7710   }
7711
7712   for (i = ED_SCROLLBAR_ID_AREA_FIRST; i <= ED_SCROLLBAR_ID_AREA_LAST; i++)
7713   {
7714     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
7715         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
7716       continue;
7717
7718     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
7719   }
7720
7721   MapDrawingArea(ED_DRAWING_ID_DRAWING_LEVEL);
7722 }
7723
7724 static void MapOrUnmapLevelEditorToolboxCustomGadgets(boolean map)
7725 {
7726   int i;
7727
7728   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
7729   {
7730     if (i == GADGET_ID_CUSTOM_COPY_FROM ||
7731         i == GADGET_ID_CUSTOM_COPY_TO ||
7732         i == GADGET_ID_CUSTOM_EXCHANGE ||
7733         i == GADGET_ID_CUSTOM_COPY ||
7734         i == GADGET_ID_CUSTOM_PASTE)
7735     {
7736       if (map)
7737         MapGadget(level_editor_gadget[i]);
7738       else
7739         UnmapGadget(level_editor_gadget[i]);
7740     }
7741   }
7742 }
7743
7744 static void MapLevelEditorToolboxCustomGadgets(void)
7745 {
7746   MapOrUnmapLevelEditorToolboxCustomGadgets(TRUE);
7747 }
7748
7749 static void UnmapLevelEditorToolboxCustomGadgets(void)
7750 {
7751   MapOrUnmapLevelEditorToolboxCustomGadgets(FALSE);
7752 }
7753
7754 static void MapOrUnmapLevelEditorToolboxDrawingGadgets(boolean map)
7755 {
7756   int i;
7757
7758   for (i = 0; i < ED_NUM_CTRL1_BUTTONS; i++)
7759   {
7760     if (i != GADGET_ID_SINGLE_ITEMS &&
7761         i != GADGET_ID_PICK_ELEMENT)
7762     {
7763       struct GadgetInfo *gi = level_editor_gadget[i];
7764
7765       if (map)
7766       {
7767         MapGadget(gi);
7768       }
7769       else
7770       {
7771         int graphic = IMG_EDITOR_NO_TOOLBOX_BUTTON;
7772         struct GraphicInfo *gd = &graphic_info[graphic];
7773
7774         UnmapGadget(gi);
7775
7776         BlitBitmap(gd->bitmap, drawto, gd->src_x, gd->src_y,
7777                    gi->width, gi->height, gi->x, gi->y);
7778
7779         redraw_mask |= REDRAW_DOOR_3;
7780       }
7781     }
7782   }
7783 }
7784
7785 static void MapLevelEditorToolboxDrawingGadgets(void)
7786 {
7787   MapOrUnmapLevelEditorToolboxDrawingGadgets(TRUE);
7788 }
7789
7790 static void UnmapLevelEditorToolboxDrawingGadgets(void)
7791 {
7792   MapOrUnmapLevelEditorToolboxDrawingGadgets(FALSE);
7793 }
7794
7795 static void UnmapDrawingArea(int id)
7796 {
7797   UnmapGadget(level_editor_gadget[drawingarea_info[id].gadget_id]);
7798 }
7799
7800 static void UnmapLevelEditorFieldGadgets(void)
7801 {
7802   int i;
7803
7804   for (i = 0; i < num_editor_gadgets; i++)
7805     if (IN_GFX_FIELD_FULL(level_editor_gadget[i]->x,
7806                           level_editor_gadget[i]->y))
7807       UnmapGadget(level_editor_gadget[i]);
7808 }
7809
7810 void UnmapLevelEditorGadgets(void)
7811 {
7812   int i;
7813
7814   for (i = 0; i < num_editor_gadgets; i++)
7815     UnmapGadget(level_editor_gadget[i]);
7816 }
7817
7818 static void ResetUndoBuffer(void)
7819 {
7820   undo_buffer_position = -1;
7821   undo_buffer_steps = -1;
7822   redo_buffer_steps = 0;
7823
7824   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
7825
7826   level.changed = FALSE;
7827 }
7828
7829 static void DrawEditModeWindowExt(boolean remap_toolbox_gadgets)
7830 {
7831   if (remap_toolbox_gadgets)
7832   {
7833     ModifyEditorElementList();
7834     RedrawDrawingElements();
7835   }
7836
7837   if (edit_mode == ED_MODE_INFO)
7838     DrawLevelInfoWindow();
7839   else if (edit_mode == ED_MODE_PROPERTIES)
7840     DrawPropertiesWindow();
7841   else if (edit_mode == ED_MODE_PALETTE)
7842     DrawPaletteWindow();
7843   else  // edit_mode == ED_MODE_DRAWING
7844     DrawDrawingWindowExt(remap_toolbox_gadgets);
7845 }
7846
7847 static void DrawEditModeWindow(void)
7848 {
7849   DrawEditModeWindowExt(TRUE);
7850 }
7851
7852 static void DrawEditModeWindow_PlayfieldOnly(void)
7853 {
7854   DrawEditModeWindowExt(FALSE);
7855 }
7856
7857 static void ChangeEditModeWindow(int new_edit_mode)
7858 {
7859   edit_mode = (new_edit_mode != edit_mode ? new_edit_mode : ED_MODE_DRAWING);
7860
7861   DrawEditModeWindow();
7862 }
7863
7864 static boolean LevelChanged(void)
7865 {
7866   boolean field_changed = FALSE;
7867   int x, y;
7868
7869   for (y = 0; y < lev_fieldy; y++)
7870     for (x = 0; x < lev_fieldx; x++)
7871       if (Tile[x][y] != level.field[x][y])
7872         field_changed = TRUE;
7873
7874   return (level.changed || field_changed);
7875 }
7876
7877 static boolean PrepareSavingIntoPersonalLevelSet(void)
7878 {
7879   static LevelDirTree *last_copied_leveldir = NULL;
7880   static LevelDirTree *last_written_leveldir = NULL;
7881   static int last_copied_level_nr = -1;
7882   static int last_written_level_nr = -1;
7883   LevelDirTree *leveldir_former = leveldir_current;
7884   int level_nr_former = level_nr;
7885   int new_level_nr;
7886
7887   // remember last mod/save so that for current session, we write
7888   // back to the same personal copy, asking only about overwrite.
7889   if (leveldir_current == last_copied_leveldir &&
7890       level_nr == last_copied_level_nr)
7891   {
7892     // "cd" to personal level set dir (as used when writing last copy)
7893     leveldir_current = last_written_leveldir;
7894     level_nr = last_written_level_nr;
7895
7896     return TRUE;
7897   }
7898
7899   if (!Request("This level is read-only! "
7900                "Save into personal level set?", REQ_ASK))
7901     return FALSE;
7902
7903   // "cd" to personal level set dir (for writing copy the first time)
7904   leveldir_current =
7905     getTreeInfoFromIdentifier(leveldir_first, getLoginName());
7906
7907   // this may happen if "setup.internal.create_user_levelset" is FALSE
7908   // or if file "levelinfo.conf" is missing in personal user level set
7909   if (leveldir_current == NULL)
7910   {
7911     Request("Cannot find personal level set?!", REQ_CONFIRM);
7912
7913     leveldir_current = leveldir_former;
7914
7915     return FALSE;
7916   }
7917
7918   // find unused level number
7919   for (new_level_nr = leveldir_current->first_level; ; new_level_nr++)
7920   {
7921     static char *level_filename = NULL;
7922
7923     setString(&level_filename, getDefaultLevelFilename(new_level_nr));
7924
7925     if (!fileExists(level_filename))
7926       break;
7927   }
7928
7929   last_copied_leveldir = leveldir_former;
7930   last_copied_level_nr = level_nr_former;
7931
7932   last_written_leveldir = leveldir_current;
7933   last_written_level_nr = level_nr = new_level_nr;
7934
7935   return TRUE;
7936 }
7937
7938 static void ModifyLevelInfoForSavingIntoPersonalLevelSet(char *former_name)
7939 {
7940   static char *filename_levelinfo = NULL, *mod_name = NULL;
7941   FILE *file;
7942
7943   // annotate this copy-and-mod in personal levelinfo.conf
7944   setString(&filename_levelinfo,
7945             getPath2(getCurrentLevelDir(), LEVELINFO_FILENAME));
7946
7947   if ((file = fopen(filename_levelinfo, MODE_APPEND)))
7948   {
7949     fprintf(file, "\n");
7950     fprintf(file, "# level %d was modified from:\n", level_nr);
7951     fprintf(file, "# - previous level set name:    %s\n",
7952             former_name);
7953     fprintf(file, "# - level within previous set:  %d \"%s\"\n",
7954             level.file_info.nr, level.name);
7955     fprintf(file, "# - previous author:            %s\n",
7956             level.author);
7957     fprintf(file, "# - previous save date:         ");
7958
7959     if (level.creation_date.src == DATE_SRC_LEVELFILE)
7960     {
7961       fprintf(file, "%04d-%02d-%02d\n",
7962               level.creation_date.year,
7963               level.creation_date.month,
7964               level.creation_date.day);
7965     }
7966     else
7967     {
7968       fprintf(file, "not recorded\n");
7969     }
7970
7971     fclose(file);
7972   }
7973
7974   if (level_nr > leveldir_current->last_level)
7975     UpdateUserLevelSet(getLoginName(), NULL, NULL, level_nr + 9);
7976
7977   // else: allow the save even if annotation failed
7978
7979   // now... spray graffiti on the old level vital statistics
7980   // user can change these; just trying to set a good baseline
7981
7982   // don't truncate names for fear of making offensive or silly:
7983   // long-named original author only recorded in levelinfo.conf.
7984   // try to fit "Joe after Bob", "Joe (ed.)", then just "Joe"
7985   if (!strEqual(level.author, leveldir_current->author))
7986   {
7987     setString(&mod_name, getStringCat3(leveldir_current->author,
7988                                        " after ", level.author));
7989
7990     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
7991       setString(&mod_name,
7992                 getStringCat2(leveldir_current->author, " (ed.)"));
7993
7994     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
7995       setString(&mod_name, leveldir_current->author);
7996
7997     strncpy(level.author, mod_name, MAX_LEVEL_AUTHOR_LEN);
7998
7999     // less worried about truncation here
8000     setString(&mod_name, getStringCat2("Mod: ", level.name));
8001     strncpy(level.name, mod_name, MAX_LEVEL_NAME_LEN);
8002   }
8003 }
8004
8005 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
8006                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
8007 {
8008   int x, y;
8009
8010   for (x = 0; x < lev_fieldx; x++)
8011     for (y = 0; y < lev_fieldy; y++)
8012       dst[x][y] = src[x][y];
8013 }
8014
8015 static int setSelectboxValue(int selectbox_id, int new_value)
8016 {
8017   int new_index_value = 0;
8018   int i;
8019
8020   for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
8021     if (selectbox_info[selectbox_id].options[i].value == new_value)
8022       new_index_value = i;
8023
8024   *selectbox_info[selectbox_id].value =
8025     selectbox_info[selectbox_id].options[new_index_value].value;
8026
8027   return new_index_value;
8028 }
8029
8030 static void setSelectboxSpecialActionVariablesIfNeeded(void)
8031 {
8032   int i;
8033
8034   // change action mode and arg variables according to action type variable
8035   for (i = 0; action_arg_options[i].value != -1; i++)
8036   {
8037     if (action_arg_options[i].value == custom_element_change.action_type)
8038     {
8039       int mode = action_arg_options[i].mode;
8040
8041       // only change if corresponding selectbox has changed
8042       if (selectbox_info[ED_SELECTBOX_ID_ACTION_MODE].options !=
8043           action_arg_modes[mode])
8044         custom_element_change.action_mode = -1;
8045
8046       // only change if corresponding selectbox has changed
8047       if (selectbox_info[ED_SELECTBOX_ID_ACTION_ARG].options !=
8048           action_arg_options[i].options)
8049         custom_element_change.action_arg = -1;
8050
8051       break;
8052     }
8053   }
8054 }
8055
8056 static void setSelectboxSpecialActionOptions(void)
8057 {
8058   int i;
8059
8060   // change action mode and arg selectbox according to action type selectbox
8061   for (i = 0; action_arg_options[i].value != -1; i++)
8062   {
8063     if (action_arg_options[i].value == custom_element_change.action_type)
8064     {
8065       int mode = action_arg_options[i].mode;
8066
8067       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_MODE,
8068                                    action_arg_modes[mode]);
8069       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_MODE,
8070                                  custom_element_change.action_mode);
8071
8072       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_ARG,
8073                                    action_arg_options[i].options);
8074       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_ARG,
8075                                  custom_element_change.action_arg);
8076       break;
8077     }
8078   }
8079 }
8080
8081 static void copy_custom_element_settings(int element_from, int element_to)
8082 {
8083   struct ElementInfo *ei_from = &element_info[element_from];
8084   struct ElementInfo *ei_to = &element_info[element_to];
8085
8086   copyElementInfo(ei_from, ei_to);
8087 }
8088
8089 static void replace_custom_element_in_settings(int element_from,
8090                                                int element_to)
8091 {
8092   int i, j, x, y;
8093
8094   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
8095   {
8096     struct ElementInfo *ei = &element_info[i];
8097
8098     for (y = 0; y < 3; y++)
8099       for (x = 0; x < 3; x++)
8100         if (ei->content.e[x][y] == element_from)
8101           ei->content.e[x][y] = element_to;
8102
8103     for (j = 0; j < ei->num_change_pages; j++)
8104     {
8105       struct ElementChangeInfo *change = &ei->change_page[j];
8106
8107       if (change->target_element == element_from)
8108         change->target_element = element_to;
8109
8110       if (change->initial_trigger_element == element_from)
8111         change->initial_trigger_element = element_to;
8112
8113       if (change->action_element == element_from)
8114         change->action_element = element_to;
8115
8116       for (y = 0; y < 3; y++)
8117         for (x = 0; x < 3; x++)
8118           if (change->target_content.e[x][y] == element_from)
8119             change->target_content.e[x][y] = element_to;
8120     }
8121
8122     if (ei->group != NULL)                              // group or internal
8123       for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
8124         if (ei->group->element[j] == element_from)
8125           ei->group->element[j] = element_to;
8126   }
8127 }
8128
8129 static void replace_custom_element_in_playfield(int element_from,
8130                                                 int element_to)
8131 {
8132   int x, y;
8133
8134   for (x = 0; x < lev_fieldx; x++)
8135     for (y = 0; y < lev_fieldy; y++)
8136       if (Tile[x][y] == element_from)
8137         Tile[x][y] = element_to;
8138 }
8139
8140 static boolean CopyCustomElement(int element_old, int element_new,
8141                                  int copy_mode)
8142 {
8143   int copy_mode_orig = copy_mode;
8144
8145   if (copy_mode == GADGET_ID_CUSTOM_COPY)
8146   {
8147     element_new = (IS_CUSTOM_ELEMENT(element_old) ?
8148                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
8149     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
8150   }
8151   else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
8152   {
8153     element_old = (IS_CUSTOM_ELEMENT(element_new) ?
8154                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
8155     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
8156
8157     level.changed = TRUE;
8158   }
8159   else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
8160   {
8161     Request("Please choose custom element!", REQ_CONFIRM);
8162
8163     return FALSE;
8164   }
8165   else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
8166   {
8167     Request("Please choose group element!", REQ_CONFIRM);
8168
8169     return FALSE;
8170   }
8171   else
8172   {
8173     level.changed = TRUE;
8174   }
8175
8176   // when modifying custom/group element, ask for copying level template
8177   if (copy_mode_orig != GADGET_ID_CUSTOM_COPY && level.use_custom_template)
8178   {
8179     if (!AskToCopyAndModifyLevelTemplate())
8180       return FALSE;
8181   }
8182
8183   if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
8184   {
8185     copy_custom_element_settings(element_new, element_old);
8186   }
8187   else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
8188   {
8189     copy_custom_element_settings(element_old, element_new);
8190   }
8191   else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
8192   {
8193     copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
8194     copy_custom_element_settings(element_new, element_old);
8195     copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
8196
8197     replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
8198     replace_custom_element_in_settings(element_new, element_old);
8199     replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
8200
8201     replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
8202     replace_custom_element_in_playfield(element_new, element_old);
8203     replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
8204   }
8205
8206   UpdateCustomElementGraphicGadgets();
8207   DrawPropertiesWindow();
8208
8209   return TRUE;
8210 }
8211
8212 static void CopyCustomElementPropertiesToEditor(int element)
8213 {
8214   int i;
8215   int current_change_page = element_info[element].current_change_page;
8216
8217   // dynamically (re)build selectbox for selecting change page
8218   for (i = 0; i < element_info[element].num_change_pages; i++)
8219   {
8220     sprintf(options_change_page_strings[i], "%d", i + 1);
8221
8222     options_change_page[i].value = i;
8223     options_change_page[i].text = options_change_page_strings[i];
8224   }
8225
8226   options_change_page[i].value = -1;
8227   options_change_page[i].text = NULL;
8228
8229   // needed here to initialize combined element properties
8230   InitElementPropertiesEngine(level.game_version);
8231
8232   element_info[element].change =
8233     &element_info[element].change_page[current_change_page];
8234
8235   custom_element = element_info[element];
8236   custom_element_change = *element_info[element].change;
8237
8238   // needed to initially set selectbox options for special action options
8239   setSelectboxSpecialActionOptions();
8240
8241   // needed to initially set selectbox value variables to reliable defaults
8242   for (i = 0; i < ED_NUM_SELECTBOX; i++)
8243     setSelectboxValue(i, *selectbox_info[i].value);
8244
8245   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
8246     custom_element_properties[i] = HAS_PROPERTY(element, i);
8247
8248   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
8249     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
8250
8251   // ---------- element settings: configure (custom elements) -----------------
8252
8253   // set accessible layer selectbox help value
8254   custom_element.access_type =
8255     (IS_WALKABLE(element) ? EP_WALKABLE :
8256      IS_PASSABLE(element) ? EP_PASSABLE :
8257      custom_element.access_type);
8258   custom_element.access_layer =
8259     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
8260      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
8261      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
8262      custom_element.access_layer);
8263   custom_element.access_protected =
8264     (IS_PROTECTED(element) ? 1 : 0);
8265   custom_element_properties[EP_ACCESSIBLE] =
8266     (IS_ACCESSIBLE_OVER(element) ||
8267      IS_ACCESSIBLE_INSIDE(element) ||
8268      IS_ACCESSIBLE_UNDER(element));
8269
8270   // set walk-to-object action selectbox help value
8271   custom_element.walk_to_action =
8272     (IS_DIGGABLE(element) ? EP_DIGGABLE :
8273      IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
8274      IS_DROPPABLE(element) ? EP_DROPPABLE :
8275      IS_THROWABLE(element) ? EP_THROWABLE :
8276      IS_PUSHABLE(element) ? EP_PUSHABLE :
8277      custom_element.walk_to_action);
8278   custom_element_properties[EP_WALK_TO_OBJECT] =
8279     (IS_DIGGABLE(element) ||
8280      IS_COLLECTIBLE_ONLY(element) ||
8281      IS_DROPPABLE(element) ||
8282      IS_THROWABLE(element) ||
8283      IS_PUSHABLE(element));
8284
8285   // set smash targets selectbox help value
8286   custom_element.smash_targets =
8287     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
8288      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
8289      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
8290      custom_element.smash_targets);
8291   custom_element_properties[EP_CAN_SMASH] =
8292     (CAN_SMASH_EVERYTHING(element) ||
8293      CAN_SMASH_ENEMIES(element) ||
8294      CAN_SMASH_PLAYER(element));
8295
8296   // set deadliness selectbox help value
8297   custom_element.deadliness =
8298     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
8299      DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
8300      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
8301      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
8302      custom_element.deadliness);
8303   custom_element_properties[EP_DEADLY] =
8304     (DONT_TOUCH(element) ||
8305      DONT_GET_HIT_BY(element) ||
8306      DONT_COLLIDE_WITH(element) ||
8307      DONT_RUN_INTO(element));
8308
8309   // ---------- element settings: advanced (custom elements) ------------------
8310
8311   // set "change by direct action" selectbox help value
8312   custom_element_change.direct_action =
8313     (HAS_CHANGE_EVENT(element, CE_NEXT_TO_PLAYER) ? CE_NEXT_TO_PLAYER :
8314      HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
8315      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
8316      HAS_CHANGE_EVENT(element, CE_SWITCHED_BY_PLAYER) ? CE_SWITCHED_BY_PLAYER :
8317      HAS_CHANGE_EVENT(element, CE_SNAPPED_BY_PLAYER) ? CE_SNAPPED_BY_PLAYER :
8318      HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
8319      HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
8320      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
8321      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
8322      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
8323      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
8324      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
8325      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
8326      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
8327      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
8328      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES) ? CE_VALUE_CHANGES :
8329      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES) ? CE_SCORE_CHANGES :
8330      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO) ? CE_VALUE_GETS_ZERO :
8331      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO) ? CE_SCORE_GETS_ZERO :
8332      HAS_CHANGE_EVENT(element, CE_CLICKED_BY_MOUSE) ? CE_CLICKED_BY_MOUSE :
8333      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_MOUSE) ? CE_PRESSED_BY_MOUSE :
8334      custom_element_change.direct_action);
8335
8336   // set "change by other element action" selectbox help value
8337   custom_element_change.other_action =
8338     (HAS_CHANGE_EVENT(element, CE_PLAYER_NEXT_TO_X) ? CE_PLAYER_NEXT_TO_X :
8339      HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
8340      HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
8341      HAS_CHANGE_EVENT(element, CE_PLAYER_SWITCHES_X) ? CE_PLAYER_SWITCHES_X :
8342      HAS_CHANGE_EVENT(element, CE_PLAYER_SNAPS_X) ? CE_PLAYER_SNAPS_X :
8343      HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
8344      HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
8345      HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
8346      HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
8347      HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
8348      HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
8349      HAS_CHANGE_EVENT(element, CE_NEXT_TO_X) ? CE_NEXT_TO_X :
8350      HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
8351      HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
8352      HAS_CHANGE_EVENT(element, CE_DIGGING_X) ? CE_DIGGING_X :
8353      HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
8354      HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
8355      HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
8356      HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
8357      HAS_CHANGE_EVENT(element, CE_MOVE_OF_X) ? CE_MOVE_OF_X :
8358      HAS_CHANGE_EVENT(element, CE_CREATION_OF_X) ? CE_CREATION_OF_X :
8359      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES_OF_X) ? CE_VALUE_CHANGES_OF_X :
8360      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES_OF_X) ? CE_SCORE_CHANGES_OF_X :
8361      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO_OF_X) ? CE_VALUE_GETS_ZERO_OF_X :
8362      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO_OF_X) ? CE_SCORE_GETS_ZERO_OF_X :
8363      HAS_CHANGE_EVENT(element, CE_MOUSE_CLICKED_ON_X) ? CE_MOUSE_CLICKED_ON_X :
8364      HAS_CHANGE_EVENT(element, CE_MOUSE_PRESSED_ON_X) ? CE_MOUSE_PRESSED_ON_X :
8365      custom_element_change.other_action);
8366 }
8367
8368 static void CopyGroupElementPropertiesToEditor(int element)
8369 {
8370   group_element_info = *element_info[element].group;
8371   custom_element = element_info[element];       // needed for description
8372 }
8373
8374 static void CopyEmptyElementPropertiesToEditor(int element)
8375 {
8376   custom_element = element_info[element];
8377 }
8378
8379 static void CopyClassicElementPropertiesToEditor(int element)
8380 {
8381   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
8382     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
8383       getMoveIntoAcidProperty(&level, element);
8384
8385   if (MAYBE_DONT_COLLIDE_WITH(element))
8386     custom_element_properties[EP_DONT_COLLIDE_WITH] =
8387       getDontCollideWithProperty(&level, element);
8388 }
8389
8390 static void CopyElementPropertiesToEditor(int element)
8391 {
8392   if (IS_CUSTOM_ELEMENT(element))
8393     CopyCustomElementPropertiesToEditor(element);
8394   else if (IS_GROUP_ELEMENT(element))
8395     CopyGroupElementPropertiesToEditor(element);
8396   else if (IS_EMPTY_ELEMENT(element))
8397     CopyEmptyElementPropertiesToEditor(element);
8398   else
8399     CopyClassicElementPropertiesToEditor(element);
8400 }
8401
8402 static boolean AskToCopyAndModifyLevelTemplate(void)
8403 {
8404   if (Request("Copy and modify settings from level template?", REQ_ASK))
8405   {
8406     level.use_custom_template = FALSE;
8407
8408     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_1],
8409                  GDI_CHECKED, FALSE, GDI_END);
8410     ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE_2],
8411                  GDI_CHECKED, FALSE, GDI_END);
8412
8413     return TRUE;
8414   }
8415   else
8416   {
8417     LoadLevelTemplate(-1);      // this resets all element modifications ...
8418
8419     DrawEditModeWindow();       // ... and copies them to 'custom_element'
8420
8421     return FALSE;
8422   }
8423 }
8424
8425 static void CopyCustomElementPropertiesToGame(int element)
8426 {
8427   int i;
8428   int access_type_and_layer;
8429
8430   // mark that this custom element has been modified
8431   custom_element.modified_settings = TRUE;
8432   level.changed = TRUE;
8433
8434   if (level.use_custom_template)
8435     AskToCopyAndModifyLevelTemplate();
8436
8437   element_info[element] = custom_element;
8438   *element_info[element].change = custom_element_change;
8439
8440   // ---------- element settings: configure (custom elements) -----------------
8441
8442   // set accessible property from checkbox and selectbox
8443   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
8444   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
8445   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
8446   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
8447   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
8448   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
8449   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
8450                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
8451                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
8452   custom_element_properties[access_type_and_layer] =
8453     custom_element_properties[EP_ACCESSIBLE];
8454   custom_element_properties[EP_PROTECTED] =
8455     (custom_element.access_protected != 0 &&
8456      custom_element_properties[EP_ACCESSIBLE]);
8457
8458   // set walk-to-object property from checkbox and selectbox
8459   custom_element_properties[EP_DIGGABLE] = FALSE;
8460   custom_element_properties[EP_COLLECTIBLE_ONLY] = FALSE;
8461   custom_element_properties[EP_DROPPABLE] = FALSE;
8462   custom_element_properties[EP_THROWABLE] = FALSE;
8463   custom_element_properties[EP_PUSHABLE] = FALSE;
8464   custom_element_properties[custom_element.walk_to_action] =
8465     custom_element_properties[EP_WALK_TO_OBJECT];
8466
8467   // set smash property from checkbox and selectbox
8468   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
8469   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
8470   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
8471   custom_element_properties[custom_element.smash_targets] =
8472     custom_element_properties[EP_CAN_SMASH];
8473
8474   // set deadliness property from checkbox and selectbox
8475   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
8476   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
8477   custom_element_properties[EP_DONT_GET_HIT_BY] = FALSE;
8478   custom_element_properties[EP_DONT_TOUCH] = FALSE;
8479   custom_element_properties[custom_element.deadliness] =
8480     custom_element_properties[EP_DEADLY];
8481
8482   // ---------- element settings: advanced (custom elements) ------------------
8483
8484   // set player change event from checkbox and selectbox
8485   custom_element_change_events[CE_NEXT_TO_PLAYER] = FALSE;
8486   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
8487   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
8488   custom_element_change_events[CE_SWITCHED_BY_PLAYER] = FALSE;
8489   custom_element_change_events[CE_SNAPPED_BY_PLAYER] = FALSE;
8490   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
8491   custom_element_change_events[CE_ENTERED_BY_PLAYER] = FALSE;
8492   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
8493   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
8494   custom_element_change_events[CE_SWITCHED] = FALSE;
8495   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
8496   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
8497   custom_element_change_events[CE_BLOCKED] = FALSE;
8498   custom_element_change_events[CE_IMPACT] = FALSE;
8499   custom_element_change_events[CE_SMASHED] = FALSE;
8500   custom_element_change_events[CE_VALUE_CHANGES] = FALSE;
8501   custom_element_change_events[CE_SCORE_CHANGES] = FALSE;
8502   custom_element_change_events[CE_VALUE_GETS_ZERO] = FALSE;
8503   custom_element_change_events[CE_SCORE_GETS_ZERO] = FALSE;
8504   custom_element_change_events[CE_CLICKED_BY_MOUSE] = FALSE;
8505   custom_element_change_events[CE_PRESSED_BY_MOUSE] = FALSE;
8506   custom_element_change_events[custom_element_change.direct_action] =
8507     custom_element_change_events[CE_BY_DIRECT_ACTION];
8508
8509   // set other element action change event from checkbox and selectbox
8510   custom_element_change_events[CE_PLAYER_NEXT_TO_X] = FALSE;
8511   custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
8512   custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
8513   custom_element_change_events[CE_PLAYER_SWITCHES_X] = FALSE;
8514   custom_element_change_events[CE_PLAYER_SNAPS_X] = FALSE;
8515   custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
8516   custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
8517   custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
8518   custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
8519   custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
8520   custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
8521   custom_element_change_events[CE_NEXT_TO_X] = FALSE;
8522   custom_element_change_events[CE_TOUCHING_X] = FALSE;
8523   custom_element_change_events[CE_HITTING_X] = FALSE;
8524   custom_element_change_events[CE_DIGGING_X] = FALSE;
8525   custom_element_change_events[CE_HIT_BY_X] = FALSE;
8526   custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
8527   custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
8528   custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
8529   custom_element_change_events[CE_MOVE_OF_X] = FALSE;
8530   custom_element_change_events[CE_CREATION_OF_X] = FALSE;
8531   custom_element_change_events[CE_VALUE_CHANGES_OF_X] = FALSE;
8532   custom_element_change_events[CE_SCORE_CHANGES_OF_X] = FALSE;
8533   custom_element_change_events[CE_VALUE_GETS_ZERO_OF_X] = FALSE;
8534   custom_element_change_events[CE_SCORE_GETS_ZERO_OF_X] = FALSE;
8535   custom_element_change_events[CE_MOUSE_CLICKED_ON_X] = FALSE;
8536   custom_element_change_events[CE_MOUSE_PRESSED_ON_X] = FALSE;
8537   custom_element_change_events[custom_element_change.other_action] =
8538     custom_element_change_events[CE_BY_OTHER_ACTION];
8539
8540   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
8541     SET_PROPERTY(element, i, custom_element_properties[i]);
8542
8543   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
8544     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
8545
8546   // copy change events also to special level editor variable
8547   custom_element = element_info[element];
8548   custom_element_change = *element_info[element].change;
8549
8550   // needed here to restore runtime value "element_info[element].gfx_element"
8551   InitElementPropertiesGfxElement();
8552 }
8553
8554 static void CopyGroupElementPropertiesToGame(int element)
8555 {
8556   // mark that this group element has been modified
8557   custom_element.modified_settings = TRUE;
8558   level.changed = TRUE;
8559
8560   if (level.use_custom_template)
8561     AskToCopyAndModifyLevelTemplate();
8562
8563   element_info[element] = custom_element;
8564   *element_info[element].group = group_element_info;
8565
8566   // needed here to restore runtime value "element_info[element].gfx_element"
8567   InitElementPropertiesGfxElement();
8568 }
8569
8570 static void CopyEmptyElementPropertiesToGame(int element)
8571 {
8572   // mark that this empty element has been modified
8573   custom_element.modified_settings = TRUE;
8574   level.changed = TRUE;
8575
8576   if (level.use_custom_template)
8577     AskToCopyAndModifyLevelTemplate();
8578
8579   element_info[element] = custom_element;
8580
8581   // needed here to restore runtime value "element_info[element].gfx_element"
8582   InitElementPropertiesGfxElement();
8583 }
8584
8585 static void CopyClassicElementPropertiesToGame(int element)
8586 {
8587   if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
8588     setMoveIntoAcidProperty(&level, element,
8589                             custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
8590
8591   if (MAYBE_DONT_COLLIDE_WITH(element))
8592     setDontCollideWithProperty(&level, element,
8593                               custom_element_properties[EP_DONT_COLLIDE_WITH]);
8594 }
8595
8596 static void CopyElementPropertiesToGame(int element)
8597 {
8598   if (IS_CUSTOM_ELEMENT(element))
8599     CopyCustomElementPropertiesToGame(element);
8600   else if (IS_GROUP_ELEMENT(element))
8601     CopyGroupElementPropertiesToGame(element);
8602   else if (IS_EMPTY_ELEMENT(element))
8603     CopyEmptyElementPropertiesToGame(element);
8604   else
8605     CopyClassicElementPropertiesToGame(element);
8606 }
8607
8608 #if DEBUG
8609 static void CheckElementDescriptions(void)
8610 {
8611   int i;
8612
8613   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
8614     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
8615       Warn("no element description file for element '%s'", EL_NAME(i));
8616 }
8617 #endif
8618
8619 static int getMaxEdFieldX(boolean has_scrollbar)
8620 {
8621   int scrollbar_width = (has_scrollbar ? ED_SCROLLBUTTON_XSIZE : 0);
8622   int sxsize = SXSIZE - scrollbar_width;
8623   int max_ed_fieldx = sxsize / ed_tilesize;
8624
8625   return max_ed_fieldx;
8626 }
8627
8628 static int getMaxEdFieldY(boolean has_scrollbar)
8629 {
8630   int infotext_height = (IN_PIX_FIELD(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY) ?
8631                          INFOTEXT_YSIZE_FULL : 0);
8632   int scrollbar_height = (has_scrollbar ? ED_SCROLLBUTTON_YSIZE : 0);
8633   int sysize = SYSIZE - scrollbar_height - infotext_height;
8634   int max_ed_fieldy = sysize / ed_tilesize;
8635
8636   return max_ed_fieldy;
8637 }
8638
8639 static void InitZoomLevelSettings(int zoom_tilesize)
8640 {
8641   static int last_game_engine_type = GAME_ENGINE_TYPE_UNKNOWN;
8642
8643   if (zoom_tilesize == -1 && level.game_engine_type != last_game_engine_type)
8644   {
8645     ed_tilesize = setup.auto_setup.editor_zoom_tilesize;
8646     ed_tilesize_default = DEFAULT_EDITOR_TILESIZE;
8647
8648     // make sure that tile size is always a power of 2
8649     ed_tilesize = (1 << log_2(ed_tilesize));
8650
8651     if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
8652     {
8653       ed_tilesize = DEFAULT_EDITOR_TILESIZE_MM;
8654       ed_tilesize_default = DEFAULT_EDITOR_TILESIZE_MM;
8655     }
8656   }
8657
8658   last_game_engine_type = level.game_engine_type;
8659
8660   // limit zoom tilesize by upper and lower bound
8661   ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
8662
8663   // store zoom tilesize in auto setup file only if it was manually changed
8664   if (zoom_tilesize != -1)
8665     setup.auto_setup.editor_zoom_tilesize = ed_tilesize;
8666
8667   MAX_ED_FIELDX = getMaxEdFieldX(FALSE);
8668   MAX_ED_FIELDY = getMaxEdFieldY(FALSE);
8669 }
8670
8671 static void InitDrawingElements(void)
8672 {
8673   static int game_engine_type_last = GAME_ENGINE_TYPE_UNKNOWN;
8674
8675   if (level.game_engine_type == game_engine_type_last)
8676     return;
8677
8678   if (level.game_engine_type == GAME_ENGINE_TYPE_SP)
8679   {
8680     new_element1 = EL_SP_CHIP_SINGLE;
8681     new_element2 = EL_EMPTY;
8682     new_element3 = EL_SP_BASE;
8683   }
8684   else if (level.game_engine_type == GAME_ENGINE_TYPE_MM)
8685   {
8686     new_element1 = EL_MM_MIRROR_START;
8687     new_element2 = EL_EMPTY;
8688     new_element3 = EL_MM_WOODEN_WALL;
8689   }
8690   else
8691   {
8692     new_element1 = EL_WALL;
8693     new_element2 = EL_EMPTY;
8694     new_element3 = EL_SAND;
8695   }
8696
8697   game_engine_type_last = level.game_engine_type;
8698 }
8699
8700 static void InitLevelSetInfo(void)
8701 {
8702   snprintf(levelset_name,   MAX_LEVEL_NAME_LEN + 1,
8703            "%s", leveldir_current->name);
8704   snprintf(levelset_author, MAX_LEVEL_AUTHOR_LEN + 1,
8705            "%s", leveldir_current->author);
8706
8707   levelset_num_levels = leveldir_current->levels;
8708
8709   levelset_use_levelset_artwork = FALSE;
8710   levelset_copy_level_template = FALSE;
8711
8712   levelset_save_mode = LEVELSET_SAVE_MODE_UPDATE;
8713 }
8714
8715 static void ChangeEditorToLevelSet(char *levelset_subdir)
8716 {
8717   leveldir_current = getTreeInfoFromIdentifier(leveldir_first, levelset_subdir);
8718
8719   // the previous level set might have used custom artwork
8720   ReloadCustomArtwork(0);
8721
8722   LoadLevelSetup_SeriesInfo();
8723
8724   SaveLevelSetup_LastSeries();
8725   SaveLevelSetup_SeriesInfo();
8726
8727   TapeErase();
8728
8729   LoadLevel(level_nr);
8730   LoadScore(level_nr);
8731
8732   DrawLevelEd();
8733 }
8734
8735 static boolean useEditorDoorAnimation(void)
8736 {
8737   struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
8738   boolean door_1_viewport_unchanged =
8739     (vp_door_1->x      == DX     &&
8740      vp_door_1->y      == DY     &&
8741      vp_door_1->width  == DXSIZE &&
8742      vp_door_1->height == DYSIZE);
8743   boolean door_1_contains_toolbox =
8744     (EX >= DX &&
8745      EY >= DY &&
8746      EX + EXSIZE <= DX + DXSIZE &&
8747      EY + EYSIZE <= DY + DYSIZE);
8748
8749   return (door_1_viewport_unchanged && door_1_contains_toolbox);
8750 }
8751
8752 static void DrawEditorDoorBackground(int graphic, int x, int y,
8753                                      int width, int height)
8754 {
8755   struct GraphicInfo *g = &graphic_info[graphic];
8756
8757   if (g->bitmap != NULL)
8758     BlitBitmap(g->bitmap, drawto, g->src_x, g->src_y,
8759                MIN(width, g->width), MIN(height, g->height), x, y);
8760   else
8761     ClearRectangle(drawto, x, y, width, height);
8762 }
8763
8764 static void DrawEditorDoorContent(void)
8765 {
8766   // needed for gadgets drawn on background (like palette scrollbar)
8767   SetDoorBackgroundImage(IMG_UNDEFINED);
8768
8769   // copy default editor door content to main double buffer
8770   DrawEditorDoorBackground(IMG_BACKGROUND_PALETTE, DX, DY, DXSIZE, DYSIZE);
8771
8772   // draw bigger door
8773   DrawSpecialEditorDoor();
8774
8775   // draw new control window
8776   DrawEditorDoorBackground(IMG_BACKGROUND_TOOLBOX, EX, EY, EXSIZE, EYSIZE);
8777
8778   // draw all toolbox gadgets to editor doors
8779   MapControlButtons();
8780
8781   // draw all palette gadgets to editor doors
8782   ModifyEditorElementList();
8783   RedrawDrawingElements();
8784
8785   // copy actual editor door content to door double buffer for OpenDoor()
8786   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
8787 }
8788
8789 void DrawLevelEd(void)
8790 {
8791   int fade_mask = REDRAW_FIELD;
8792
8793   FadeSoundsAndMusic();
8794
8795   if (CheckFadeAll())
8796     fade_mask = REDRAW_ALL;
8797
8798   FadeOut(fade_mask);
8799
8800   // needed if different viewport properties defined for editor
8801   ChangeViewportPropertiesIfNeeded();
8802
8803   ClearField();
8804
8805   InitZoomLevelSettings(-1);
8806   InitDrawingElements();
8807   InitLevelSetInfo();
8808
8809 #if DEBUG
8810   CheckElementDescriptions();
8811 #endif
8812
8813   if (level_editor_test_game)
8814   {
8815     CopyPlayfield(level.field, Tile);
8816     CopyPlayfield(TileBackup, level.field);
8817
8818     level_editor_test_game = FALSE;
8819   }
8820   else
8821   {
8822     edit_mode = ED_MODE_DRAWING;
8823     edit_mode_levelinfo = ED_MODE_LEVELINFO_LEVEL;
8824     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
8825
8826     ResetUndoBuffer();
8827
8828     level_xpos = -1;
8829     level_ypos = -1;
8830   }
8831
8832   // redraw_mask |= REDRAW_ALL;
8833
8834   FreeLevelEditorGadgets();
8835   CreateLevelEditorGadgets();
8836
8837   ReinitializeElementList();            // update dynamic level element list
8838   ReinitializeElementListButtons();     // custom element may look different
8839
8840   InitElementPropertiesGfxElement();
8841
8842   UnmapAllGadgets();
8843
8844   DrawEditModeWindow_PlayfieldOnly();
8845
8846   DrawMaskedBorder(fade_mask);
8847
8848   // use door animation if door 1 viewport is unchanged and contains toolbox
8849   if (useEditorDoorAnimation())
8850   {
8851     FadeIn(fade_mask);
8852
8853     DrawEditorDoorContent();
8854
8855     OpenDoor(DOOR_OPEN_1 | DOOR_FORCE_ANIM);
8856   }
8857   else
8858   {
8859     DrawEditorDoorContent();
8860
8861     FadeIn(fade_mask);
8862   }
8863
8864   SetDoorState(DOOR_OPEN_1 | DOOR_OPEN_2);
8865 }
8866
8867 static void AdjustDrawingAreaGadgets(void)
8868 {
8869   int ed_xsize = lev_fieldx + 2;
8870   int ed_ysize = lev_fieldy + 2;
8871   int max_ed_fieldx = MAX_ED_FIELDX;
8872   int max_ed_fieldy = MAX_ED_FIELDY;
8873   boolean horizontal_scrollbar_needed;
8874   boolean vertical_scrollbar_needed;
8875   int x, y, width, height;
8876
8877   if (suppressBorderElement())
8878   {
8879     ed_xsize = max_ed_fieldx;
8880     ed_ysize = max_ed_fieldy;
8881   }
8882
8883   // check if we need any scrollbars
8884   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
8885   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
8886
8887   // check if we have a smaller editor field because of scrollbars
8888   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
8889   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
8890
8891   // check again if we now need more scrollbars because of less space
8892   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
8893   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
8894
8895   // check if editor field gets even smaller after adding new scrollbars
8896   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
8897   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
8898
8899   ed_fieldx = (ed_xsize > max_ed_fieldx ? max_ed_fieldx : ed_xsize);
8900   ed_fieldy = (ed_ysize > max_ed_fieldy ? max_ed_fieldy : ed_ysize);
8901
8902   x = SX + ed_fieldx * ed_tilesize;
8903   y = SY + ed_fieldy * ed_tilesize;
8904
8905   width  = ed_fieldx * ed_tilesize - 2 * ED_SCROLLBUTTON_XSIZE;
8906   height = ed_fieldy * ed_tilesize - 2 * ED_SCROLLBUTTON_YSIZE;
8907
8908   // adjust drawing area gadget
8909   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
8910                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
8911                GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
8912                GDI_END);
8913
8914   // adjust horizontal scrollbar gadgets
8915   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LEFT],
8916                GDI_Y, y,
8917                GDI_END);
8918   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT],
8919                GDI_X, x - ED_SCROLLBUTTON_XSIZE,
8920                GDI_Y, y,
8921                GDI_END);
8922   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
8923                GDI_Y, y,
8924                GDI_WIDTH, width,
8925                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
8926                GDI_END);
8927
8928   // adjust vertical scrollbar gadgets
8929   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_UP],
8930                GDI_X, x,
8931                GDI_END);
8932   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN],
8933                GDI_X, x,
8934                GDI_Y, y - ED_SCROLLBUTTON_YSIZE,
8935                GDI_END);
8936   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
8937                GDI_X, x,
8938                GDI_HEIGHT, height,
8939                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
8940                GDI_END);
8941 }
8942
8943 static void AdjustLevelScrollPosition(void)
8944 {
8945   if (level_xpos < -1)
8946     level_xpos = -1;
8947   if (level_xpos > lev_fieldx - ed_fieldx + 1)
8948     level_xpos = lev_fieldx - ed_fieldx + 1;
8949   if (lev_fieldx < ed_fieldx - 2)
8950     level_xpos = -1;
8951
8952   if (level_ypos < -1)
8953     level_ypos = -1;
8954   if (level_ypos > lev_fieldy - ed_fieldy + 1)
8955     level_ypos = lev_fieldy - ed_fieldy + 1;
8956   if (lev_fieldy < ed_fieldy - 2)
8957     level_ypos = -1;
8958
8959   if (suppressBorderElement())
8960   {
8961     level_xpos = 0;
8962     level_ypos = 0;
8963   }
8964 }
8965
8966 static void AdjustEditorScrollbar(int id)
8967 {
8968   struct GadgetInfo *gi = level_editor_gadget[id];
8969   int items_max, items_visible, item_position;
8970
8971   if (id == GADGET_ID_SCROLL_HORIZONTAL)
8972   {
8973     items_max = MAX(lev_fieldx + 2, ed_fieldx);
8974     items_visible = ed_fieldx;
8975     item_position = level_xpos + 1;
8976   }
8977   else
8978   {
8979     items_max = MAX(lev_fieldy + 2, ed_fieldy);
8980     items_visible = ed_fieldy;
8981     item_position = level_ypos + 1;
8982   }
8983
8984   if (item_position > items_max - items_visible)
8985     item_position = items_max - items_visible;
8986
8987   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
8988                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
8989 }
8990
8991 static void AdjustElementListScrollbar(void)
8992 {
8993   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL];
8994   int items_max, items_visible, item_position;
8995
8996   // correct position of element list scrollbar
8997   if (element_shift < 0)
8998     element_shift = 0;
8999   if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
9000     element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
9001
9002   items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
9003   items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
9004   item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
9005
9006   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
9007                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
9008                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
9009 }
9010
9011 static void ModifyEditorCounterValue(int counter_id, int new_value)
9012 {
9013   int *counter_value = counterbutton_info[counter_id].value;
9014   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9015   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9016
9017   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
9018
9019   if (counter_value != NULL)
9020     *counter_value = gi->textinput.number_value;
9021 }
9022
9023 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
9024 {
9025   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
9026   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9027
9028   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
9029
9030   if (counter_id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
9031       counter_id <= ED_COUNTER_ID_ELEMENT_VALUE4)
9032   {
9033     int gadget_id_up = counterbutton_info[counter_id].gadget_id_up;
9034     struct GadgetInfo *gi_up = level_editor_gadget[gadget_id_up];
9035
9036     ModifyGadget(gi, GDI_TEXT_SIZE, (max < 10 ? 1 : 3), GDI_END);
9037     ModifyGadget(gi_up, GDI_X, gi->x + gi->width + ED_GADGET_SMALL_DISTANCE,
9038                  GDI_END);
9039   }
9040 }
9041
9042 static void ModifyEditorSelectboxValue(int selectbox_id, int new_value)
9043 {
9044   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9045   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9046   int new_index_value = setSelectboxValue(selectbox_id, new_value);
9047
9048   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
9049 }
9050
9051 static void ModifyEditorSelectboxOptions(int selectbox_id,
9052                                          struct ValueTextInfo *options)
9053 {
9054   int gadget_id = selectbox_info[selectbox_id].gadget_id;
9055   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9056
9057   selectbox_info[selectbox_id].options = options;
9058
9059   // set index to zero -- list may be shorter now (correct later, if needed)
9060   ModifyGadget(gi, GDI_SELECTBOX_INDEX, 0,
9061                GDI_SELECTBOX_OPTIONS, options, GDI_END);
9062 }
9063
9064 static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
9065 {
9066   int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
9067   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9068
9069   drawingarea_info[drawingarea_id].area_xsize = xsize;
9070   drawingarea_info[drawingarea_id].area_ysize = ysize;
9071
9072   ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
9073 }
9074
9075 static void ModifyEditorElementList(void)
9076 {
9077   int i;
9078
9079   if (!use_permanent_palette && edit_mode != ED_MODE_PALETTE)
9080     return;
9081
9082   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
9083   {
9084     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
9085     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9086     struct GadgetDesign *gd = &gi->deco.design;
9087     int element = editor_elements[element_shift + i];
9088     int tile_size = BUTTON_TILE_SIZE(editor.palette.tile_size);
9089
9090     UnmapGadget(gi);
9091
9092     getEditorGraphicSource(element, tile_size, &gd->bitmap, &gd->x, &gd->y);
9093
9094     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
9095
9096     MapGadget(gi);
9097   }
9098 }
9099
9100 static void DrawDrawingElementGraphic(int element, struct XYTileSize *pos)
9101 {
9102   int graphic = el2edimg(element);
9103   int tile_size = BUTTON_TILE_SIZE(pos->tile_size);
9104
9105   if (pos->x == -1 &&
9106       pos->y == -1)
9107     return;
9108
9109   DrawSizedGraphicExt(drawto, DX + pos->x, DY + pos->y, graphic, 0, tile_size);
9110 }
9111
9112 static void ModifyDrawingElementButton(int element, int id)
9113 {
9114   struct GadgetInfo *gi = level_editor_gadget[id];
9115   Bitmap *deco_bitmap;
9116   int deco_x, deco_y;
9117   int tile_size = gi->deco.width;
9118
9119   getEditorGraphicSource(element, tile_size, &deco_bitmap, &deco_x, &deco_y);
9120
9121   ModifyGadget(gi, GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y, GDI_END);
9122 }
9123
9124 static void PickDrawingElement(int button, int element)
9125 {
9126   struct
9127   {
9128     int *new_element;
9129     struct XYTileSize *pos;
9130     int id;
9131   } de, drawing_elements[] =
9132   {
9133     { &new_element1, &editor.palette.element_left,   GADGET_ID_ELEMENT_LEFT   },
9134     { &new_element2, &editor.palette.element_middle, GADGET_ID_ELEMENT_MIDDLE },
9135     { &new_element3, &editor.palette.element_right,  GADGET_ID_ELEMENT_RIGHT  },
9136   };
9137
9138   if (button < 1 || button > 3)
9139     return;
9140
9141   if (IS_MM_WALL(element))
9142     element = map_mm_wall_element(element);
9143
9144   de = drawing_elements[button - 1];
9145
9146   *de.new_element = element;    // update global drawing element variable
9147
9148   DrawDrawingElementGraphic(element, de.pos);
9149   ModifyDrawingElementButton(element, de.id);
9150
9151   redraw_mask |= REDRAW_DOOR_1;
9152 }
9153
9154 static void RedrawDrawingElements(void)
9155 {
9156   PickDrawingElement(1, new_element1);
9157   PickDrawingElement(2, new_element2);
9158   PickDrawingElement(3, new_element3);
9159 }
9160
9161 static void DrawDrawingWindowExt(boolean remap_toolbox_gadgets)
9162 {
9163   stick_element_properties_window = FALSE;
9164
9165   SetMainBackgroundImage(IMG_UNDEFINED);
9166   ClearField();
9167
9168   UnmapLevelEditorFieldGadgets();
9169
9170   AdjustDrawingAreaGadgets();
9171   AdjustLevelScrollPosition();
9172   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
9173   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
9174
9175   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
9176
9177   MapMainDrawingArea();
9178
9179   if (remap_toolbox_gadgets)
9180   {
9181     UnmapLevelEditorToolboxCustomGadgets();
9182     MapLevelEditorToolboxDrawingGadgets();
9183   }
9184 }
9185
9186 static void DrawDrawingWindow(void)
9187 {
9188   DrawDrawingWindowExt(TRUE);
9189 }
9190
9191 static int getTabulatorBarWidth(void)
9192 {
9193   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
9194   struct GadgetInfo *gd_gi4 = level_editor_gadget[GADGET_ID_PROPERTIES_CHANGE];
9195
9196   return gd_gi4->x - gd_gi1->x + gd_gi4->width;
9197 }
9198
9199 static int getTabulatorBarHeight(void)
9200 {
9201   return ED_TAB_BAR_HEIGHT;
9202 }
9203
9204 static Pixel getTabulatorBarColor(void)
9205 {
9206   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELINFO_LEVEL];
9207   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
9208   int gd_x = gd->x + gd_gi1->border.width / 2;
9209   int gd_y = gd->y + gd_gi1->height - 1;
9210
9211   return GetPixel(gd->bitmap, gd_x, gd_y);
9212 }
9213
9214 static void DrawLevelInfoTabulatorGadgets(void)
9215 {
9216   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELINFO_LEVEL];
9217   Pixel tab_color = getTabulatorBarColor();
9218   int id_first = ED_TAB_BUTTON_ID_LEVELINFO_FIRST;
9219   int id_last  = ED_TAB_BUTTON_ID_LEVELINFO_LAST;
9220   int i;
9221
9222   for (i = id_first; i <= id_last; i++)
9223   {
9224     int gadget_id = textbutton_info[i].gadget_id;
9225     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9226     boolean active = (i != edit_mode_levelinfo);
9227
9228     // draw background line below tabulator button
9229     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
9230
9231     // draw solid line below inactive tabulator buttons
9232     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
9233       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
9234                     ED_GADGET_TINY_DISTANCE, tab_color);
9235
9236     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
9237     MapTextbuttonGadget(i);
9238   }
9239
9240   // draw little border line below tabulator buttons
9241   if (tab_color != BLACK_PIXEL)                 // black => transparent
9242     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
9243                   ED_GADGET_TINY_DISTANCE,
9244                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
9245 }
9246
9247 static void DrawPropertiesTabulatorGadgets(void)
9248 {
9249   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
9250   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
9251   int gd_x = gd->x + gd_gi1->border.width / 2;
9252   int gd_y = gd->y + gd_gi1->height - 1;
9253   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
9254   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
9255   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
9256   int i;
9257
9258   // draw two config tabulators for player elements
9259   if (IS_PLAYER_ELEMENT(properties_element))
9260     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
9261
9262   // draw two config and one "change" tabulator for custom elements
9263   if (IS_CUSTOM_ELEMENT(properties_element))
9264     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CHANGE;
9265
9266   for (i = id_first; i <= id_last; i++)
9267   {
9268     int gadget_id = textbutton_info[i].gadget_id;
9269     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
9270     boolean active = (i != edit_mode_properties);
9271
9272     // use "config 1" and "config 2" instead of "config" for players and CEs
9273     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
9274         (IS_PLAYER_ELEMENT(properties_element) ||
9275          IS_CUSTOM_ELEMENT(properties_element)))
9276       continue;
9277
9278     // draw background line below tabulator button
9279     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
9280
9281     // draw solid line below inactive tabulator buttons
9282     if (!active && tab_color != BLACK_PIXEL)    // black => transparent
9283       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,
9284                     ED_GADGET_TINY_DISTANCE, tab_color);
9285
9286     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
9287     MapTextbuttonGadget(i);
9288   }
9289
9290   // draw little border line below tabulator buttons
9291   if (tab_color != BLACK_PIXEL)                 // black => transparent
9292     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height +
9293                   ED_GADGET_TINY_DISTANCE,
9294                   getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
9295 }
9296
9297 static void PrintInfoText(char *text, int font_nr, int xpos, int ypos)
9298 {
9299   DrawText(SX + xpos, SY + ypos, text, font_nr);
9300 }
9301
9302 static int PrintElementDescriptionFromFile(char *filename, int font_nr,
9303                                            int xpos, int ypos)
9304 {
9305   int font_width = getFontWidth(font_nr);
9306   int font_height = getFontHeight(font_nr);
9307   int max_chars_per_line = (SXSIZE - 2 * xpos) / font_width;
9308   int max_lines_drawable = (SYSIZE - ypos) / font_height - 1;
9309
9310   return DrawTextFile(SX + xpos, SY + ypos, filename, font_nr,
9311                       max_chars_per_line, -1, max_lines_drawable, 0, -1,
9312                       TRUE, FALSE, FALSE);
9313 }
9314
9315 static void DrawLevelInfoLevel(void)
9316 {
9317   int i;
9318
9319   // draw counter gadgets
9320   for (i = ED_COUNTER_ID_LEVEL_FIRST; i <= ED_COUNTER_ID_LEVEL_LAST; i++)
9321     MapCounterButtons(i);
9322
9323   // draw checkbutton gadgets
9324   for (i = ED_CHECKBUTTON_ID_LEVEL_FIRST; i<= ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
9325     MapCheckbuttonGadget(i);
9326
9327   // draw selectbox gadgets
9328   for (i = ED_SELECTBOX_ID_LEVEL_FIRST; i <= ED_SELECTBOX_ID_LEVEL_LAST; i++)
9329     MapSelectboxGadget(i);
9330
9331   // draw text input gadgets
9332   for (i = ED_TEXTINPUT_ID_LEVEL_FIRST; i <= ED_TEXTINPUT_ID_LEVEL_LAST; i++)
9333     MapTextInputGadget(i);
9334 }
9335
9336 static char *getLevelSubdirFromSaveMode(int save_mode)
9337 {
9338   if (save_mode == LEVELSET_SAVE_MODE_CREATE)
9339     return getNewUserLevelSubdir();
9340
9341   return leveldir_current->subdir;
9342 }
9343
9344 static void DrawLevelInfoLevelSet_DirectoryInfo(void)
9345 {
9346   char *directory_text = "Level set directory:";
9347   char *directory_name = getLevelSubdirFromSaveMode(levelset_save_mode);
9348   int font1_nr = FONT_TEXT_1;
9349   int font2_nr = FONT_TEXT_2;
9350   int font1_height = getFontHeight(font1_nr);
9351   int yoffset_above = font1_height + ED_GADGET_LINE_DISTANCE;
9352   int x = ED_LEVEL_SETTINGS_X(0);
9353   int y = ED_LEVEL_SETTINGS_Y(6);
9354
9355   PrintInfoText(directory_text, font1_nr, x, y - yoffset_above);
9356   PrintInfoText(directory_name, font2_nr, x, y);
9357 }
9358
9359 static void DrawLevelInfoLevelSet(void)
9360 {
9361   boolean artwork_exists = checkIfCustomArtworkExistsForCurrentLevelSet();
9362   boolean template_exists = fileExists(getLocalLevelTemplateFilename());
9363   int i;
9364
9365   // draw counter gadgets
9366   for (i = ED_COUNTER_ID_LEVELSET_FIRST; i <= ED_COUNTER_ID_LEVELSET_LAST; i++)
9367     MapCounterButtons(i);
9368
9369   // draw checkbutton gadgets
9370   for (i = ED_CHECKBUTTON_ID_LEVELSET_FIRST; i <= ED_CHECKBUTTON_ID_LEVELSET_LAST; i++)
9371   {
9372     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE ||
9373         (i == ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK && !artwork_exists) ||
9374         (i == ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE  && !template_exists))
9375       continue;
9376
9377     MapCheckbuttonGadget(i);
9378   }
9379
9380   // draw selectbox gadgets
9381   for (i = ED_SELECTBOX_ID_LEVELSET_FIRST; i <= ED_SELECTBOX_ID_LEVELSET_LAST; i++)
9382     MapSelectboxGadget(i);
9383
9384   // draw text input gadgets
9385   for (i = ED_TEXTINPUT_ID_LEVELSET_FIRST; i <= ED_TEXTINPUT_ID_LEVELSET_LAST; i++)
9386     MapTextInputGadget(i);
9387
9388   // draw textbutton gadgets
9389   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_LEVELSET);
9390
9391   // draw info text
9392   DrawLevelInfoLevelSet_DirectoryInfo();
9393 }
9394
9395 static void DrawLevelInfoEditor(void)
9396 {
9397   int i;
9398
9399   // draw counter gadgets
9400   for (i = ED_COUNTER_ID_EDITOR_FIRST; i <= ED_COUNTER_ID_EDITOR_LAST; i++)
9401     MapCounterButtons(i);
9402
9403   // draw checkbutton gadgets
9404   for (i=ED_CHECKBUTTON_ID_EDITOR_FIRST; i<= ED_CHECKBUTTON_ID_EDITOR_LAST; i++)
9405     MapCheckbuttonGadget(i);
9406
9407   // draw radiobutton gadgets
9408   for (i=ED_RADIOBUTTON_ID_EDITOR_FIRST; i<= ED_RADIOBUTTON_ID_EDITOR_LAST; i++)
9409     MapRadiobuttonGadget(i);
9410
9411   // draw drawing area
9412   MapDrawingArea(ED_DRAWING_ID_RANDOM_BACKGROUND);
9413
9414   // draw textbutton gadgets
9415   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2);
9416 }
9417
9418 static void DrawLevelInfoWindow(void)
9419 {
9420   char *text = "Global Settings";
9421   int font_nr = FONT_TITLE_1;
9422   struct MenuPosInfo *pos = &editor.settings.headline;
9423   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font_nr), pos->align);
9424   int sy = SY + pos->y;
9425
9426   stick_element_properties_window = FALSE;
9427
9428   SetAutomaticNumberOfGemsNeeded();
9429
9430   UnmapLevelEditorFieldGadgets();
9431
9432   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
9433   ClearField();
9434
9435   DrawText(sx, sy, text, font_nr);
9436
9437   DrawLevelInfoTabulatorGadgets();
9438
9439   if (edit_mode_levelinfo == ED_MODE_LEVELINFO_LEVEL)
9440     DrawLevelInfoLevel();
9441   else if (edit_mode_levelinfo == ED_MODE_LEVELINFO_LEVELSET)
9442     DrawLevelInfoLevelSet();
9443   else if (edit_mode_levelinfo == ED_MODE_LEVELINFO_EDITOR)
9444     DrawLevelInfoEditor();
9445 }
9446
9447 static void DrawCustomContentArea(void)
9448 {
9449   int id = ED_DRAWING_ID_CUSTOM_CONTENT;
9450   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
9451   int x1 = right_gadget_border[GADGET_ID_CUSTOM_DEADLINESS];
9452   int x2 = right_gadget_border[GADGET_ID_CUSTOM_EXPLOSION_TYPE];
9453   int x3 = right_gadget_border[GADGET_ID_CUSTOM_EXPLODE_IMPACT];
9454   int xoffset = ED_GADGET_SPACE_DISTANCE;
9455
9456   // add distance for potential left text (without drawing area border)
9457   x2 += getTextWidthForGadget(drawingarea_info[id].text_left);
9458
9459   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
9460
9461   MapDrawingArea(ED_DRAWING_ID_CUSTOM_CONTENT);
9462 }
9463
9464 static void DrawCustomChangeContentArea(void)
9465 {
9466   int id = ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT;
9467   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
9468   int x1 = right_gadget_border[GADGET_ID_CHANGE_USE_CONTENT];
9469   int x2 = right_gadget_border[GADGET_ID_CHANGE_REPLACE_WHEN];
9470   int x3 = right_gadget_border[GADGET_ID_CHANGE_ONLY_COMPLETE];
9471   int xoffset = ED_GADGET_SPACE_DISTANCE;
9472
9473   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
9474
9475   MapDrawingArea(id);
9476 }
9477
9478 static void RemoveElementContentArea(int id, int font_height)
9479 {
9480   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9481
9482   DrawBackground(SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size,
9483                  SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size,
9484                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9485                  3 * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size +
9486                  ED_GADGET_TEXT_DISTANCE + font_height);
9487 }
9488
9489 static void DrawYamYamContentAreas(void)
9490 {
9491   int font_nr = FONT_TEXT_1;
9492   int font_height = getFontHeight(font_nr);
9493   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
9494   int yoffset = (tilesize - font_height) / 2;
9495   int x = SX + ED_AREA_YAMYAM_CONTENT_X(3) + 4 * tilesize;
9496   int y = SY + ED_AREA_YAMYAM_CONTENT_Y(3) + yoffset;
9497   int i;
9498
9499   // display counter to choose number of element content areas
9500   MapCounterButtons(ED_COUNTER_ID_YAMYAM_CONTENT);
9501
9502   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
9503   {
9504     int id = ED_DRAWING_ID_YAMYAM_CONTENT_0 + i;
9505
9506     if (i < level.num_yamyam_contents)
9507     {
9508       MapDrawingArea(id);
9509     }
9510     else
9511     {
9512       UnmapDrawingArea(id);
9513
9514       // delete content areas in case of reducing number of them
9515       RemoveElementContentArea(id, font_height);
9516     }
9517   }
9518
9519   DrawText(x, y + 0 * tilesize, "content", font_nr);
9520   DrawText(x, y + 1 * tilesize, "when",    font_nr);
9521   DrawText(x, y + 2 * tilesize, "smashed", font_nr);
9522 }
9523
9524 static void DrawMagicBallContentAreas(void)
9525 {
9526   int font_nr = FONT_TEXT_1;
9527   int font_height = getFontHeight(font_nr);
9528   int tilesize = ED_DRAWINGAREA_TILE_SIZE;
9529   int yoffset = (tilesize - font_height) / 2;
9530   int x = SX + ED_AREA_MAGIC_BALL_CONTENT_X(3) + 4 * tilesize;
9531   int y = SY + ED_AREA_MAGIC_BALL_CONTENT_Y(3) + yoffset;
9532   int i;
9533
9534   // display counter to choose number of element content areas
9535   MapCounterButtons(ED_COUNTER_ID_BALL_CONTENT);
9536
9537   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
9538   {
9539     int id = ED_DRAWING_ID_MAGIC_BALL_CONTENT_0 + i;
9540
9541     if (i < level.num_ball_contents)
9542     {
9543       MapDrawingArea(id);
9544     }
9545     else
9546     {
9547       UnmapDrawingArea(id);
9548
9549       // delete content areas in case of reducing number of them
9550       RemoveElementContentArea(id, font_height);
9551     }
9552   }
9553
9554   DrawText(x, y + 0 * tilesize, "generated", font_nr);
9555   DrawText(x, y + 1 * tilesize, "when",      font_nr);
9556   DrawText(x, y + 2 * tilesize, "active",    font_nr);
9557 }
9558
9559 static void DrawAndroidElementArea(void)
9560 {
9561   int id = ED_DRAWING_ID_ANDROID_CONTENT;
9562   int num_elements = level.num_android_clone_elements;
9563   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9564   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9565   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9566   int xsize = MAX_ANDROID_ELEMENTS;
9567   int ysize = 1;
9568
9569   // display counter to choose number of element areas
9570   MapCounterButtons(ED_COUNTER_ID_ANDROID_CONTENT);
9571
9572   if (drawingarea_info[id].text_left != NULL)
9573     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9574
9575   UnmapDrawingArea(id);
9576
9577   ModifyEditorDrawingArea(id, num_elements, 1);
9578
9579   // delete content areas in case of reducing number of them
9580   DrawBackground(sx, sy,
9581                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9582                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9583
9584   MapDrawingArea(id);
9585 }
9586
9587 static void DrawGroupElementArea(void)
9588 {
9589   int id = ED_DRAWING_ID_GROUP_CONTENT;
9590   int num_elements = group_element_info.num_elements;
9591   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9592   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9593   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9594   int xsize = MAX_ELEMENTS_IN_GROUP;
9595   int ysize = 1;
9596
9597   if (drawingarea_info[id].text_left != NULL)
9598     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9599
9600   UnmapDrawingArea(id);
9601
9602   ModifyEditorDrawingArea(id, num_elements, 1);
9603
9604   // delete content areas in case of reducing number of them
9605   DrawBackground(sx, sy,
9606                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9607                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9608
9609   MapDrawingArea(id);
9610 }
9611
9612 static void DrawPlayerInitialInventoryArea(int element)
9613 {
9614   int id = ED_DRAWING_ID_INVENTORY_CONTENT;
9615   int player_nr = GET_PLAYER_NR(element);
9616   int num_elements = level.initial_inventory_size[player_nr];
9617   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9618   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9619   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9620   int xsize = MAX_INITIAL_INVENTORY_SIZE;
9621   int ysize = 1;
9622
9623   // determine horizontal position to the right of specified gadget
9624   if (drawingarea_info[id].gadget_id_align != GADGET_ID_NONE)
9625     sx = (right_gadget_border[drawingarea_info[id].gadget_id_align] +
9626           ED_DRAWINGAREA_TEXT_DISTANCE);
9627
9628   // determine horizontal offset for leading text
9629   if (drawingarea_info[id].text_left != NULL)
9630     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9631
9632   UnmapDrawingArea(id);
9633
9634   ModifyEditorDrawingArea(id, num_elements, 1);
9635
9636   // delete content areas in case of reducing number of them
9637   DrawBackground(sx, sy,
9638                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9639                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9640
9641   MapDrawingArea(id);
9642 }
9643
9644 static void DrawMMBallContentArea(void)
9645 {
9646   int id = ED_DRAWING_ID_MM_BALL_CONTENT;
9647   int num_elements = level.num_mm_ball_contents;
9648   int border_size = ED_DRAWINGAREA_BORDER_SIZE;
9649   int sx = SX + ED_AREA_SETTINGS_X(drawingarea_info[id]) - border_size;
9650   int sy = SY + ED_AREA_SETTINGS_Y(drawingarea_info[id]) - border_size;
9651   int xsize = MAX_MM_BALL_CONTENTS;
9652   int ysize = 1;
9653
9654   if (drawingarea_info[id].text_left != NULL)
9655     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
9656
9657   UnmapDrawingArea(id);
9658
9659   ModifyEditorDrawingArea(id, num_elements, 1);
9660
9661   // delete content areas in case of reducing number of them
9662   DrawBackground(sx, sy,
9663                  xsize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size,
9664                  ysize * ED_DRAWINGAREA_TILE_SIZE + 2 * border_size);
9665
9666   MapDrawingArea(id);
9667 }
9668
9669 static void DrawEnvelopeTextArea(int envelope_nr)
9670 {
9671   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
9672   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
9673
9674   UnmapGadget(gi);
9675
9676   DrawBackground(gi->x, gi->y,
9677                  gi->textarea.crop_width, gi->textarea.crop_height);
9678
9679   if (envelope_nr != -1)
9680     textarea_info[id].value = level.envelope[envelope_nr].text;
9681
9682   ModifyGadget(gi, GDI_AREA_SIZE,
9683                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_XSIZE].value,
9684                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_YSIZE].value,
9685                GDI_END);
9686
9687   MapTextAreaGadget(ED_TEXTAREA_ID_ENVELOPE_INFO);
9688 }
9689
9690 static void DrawPropertiesInfo(void)
9691 {
9692   static struct
9693   {
9694     int value;
9695     char *text;
9696   }
9697   properties[] =
9698   {
9699     // configurable properties
9700
9701     { EP_WALKABLE_OVER,         "- player can walk over it"             },
9702     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
9703     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
9704     { EP_PASSABLE_OVER,         "- player can pass over it"             },
9705     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
9706     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
9707     { EP_PROTECTED,             "- player is protected by it"           },
9708
9709     { EP_DIGGABLE,              "- can be digged away"                  },
9710     { EP_COLLECTIBLE,           "- can be collected"                    },
9711     { EP_DROPPABLE,             "- can be dropped after collecting"     },
9712     { EP_THROWABLE,             "- can be thrown after collecting"      },
9713     { EP_PUSHABLE,              "- can be pushed"                       },
9714
9715     { EP_CAN_FALL,              "- can fall"                            },
9716     { EP_CAN_MOVE,              "- can move"                            },
9717
9718     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
9719 #if 0
9720     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
9721 #endif
9722     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
9723
9724     { EP_SLIPPERY,              "- slippery for falling elements"       },
9725     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
9726
9727     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
9728     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
9729     { EP_DONT_GET_HIT_BY,       "- deadly when getting hit by"          },
9730     { EP_DONT_TOUCH,            "- deadly when touching"                },
9731
9732     { EP_INDESTRUCTIBLE,        "- indestructible"                      },
9733
9734     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode by fire or explosions"   },
9735     { EP_CAN_EXPLODE_SMASHED,   "- can explode when smashed"            },
9736     { EP_CAN_EXPLODE_IMPACT,    "- can explode on impact"               },
9737
9738     { EP_CAN_CHANGE,            "- can change to other element"         },
9739
9740     // pre-defined properties
9741     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
9742     { EP_CAN_PASS_DC_MAGIC_WALL,"- can pass magic walls (DC style)"     },
9743     { EP_SWITCHABLE,            "- can be switched"                     },
9744 #if 0
9745     { EP_HAS_EDITOR_CONTENT,    "- can contain other elements"          },
9746 #endif
9747
9748     { -1,                       NULL                                    }
9749   };
9750   char *filename = getElementDescriptionFilename(properties_element);
9751   char *num_elements_text = "In this level: ";
9752   char *num_similar_text = "Similar tiles: ";
9753   char *properties_text = "Standard properties: ";
9754   char *description_text = "Description:";
9755   char *no_description_text = "No description available.";
9756   char *none_text = "None";
9757   float percentage;
9758   int num_elements_in_level = 0;
9759   int num_similar_in_level = 0;
9760   int num_hires_tiles_in_level = 0;
9761   int num_standard_properties = 0;
9762   int font1_nr = FONT_TEXT_1;
9763   int font2_nr = FONT_TEXT_2;
9764   int font1_width = getFontWidth(font1_nr);
9765   int font1_height = getFontHeight(font1_nr);
9766   int font2_height = getFontHeight(font2_nr);
9767   int line1_height = font1_height + ED_GADGET_LINE_DISTANCE;
9768   int font2_yoffset = (font1_height - font2_height) / 2;
9769   int num_elements_text_len = strlen(num_elements_text) * font1_width;
9770   int num_similar_text_len = strlen(num_similar_text) * font1_width;
9771   int properties_text_len = strlen(properties_text) * font1_width;
9772   int xpos = ED_ELEMENT_SETTINGS_X(0);
9773   int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
9774   int i, x, y;
9775
9776   if (setup.editor.show_element_token)
9777   {
9778     int font3_nr = FONT_TEXT_3;
9779     int font3_height = getFontHeight(font3_nr);
9780
9781     DrawTextF(xpos, ypos, font3_nr,
9782               "[%s]", element_info[properties_element].token_name);
9783
9784     ypos += 2 * font3_height;
9785   }
9786
9787   // ----- print number of elements / percentage of this element in level
9788
9789   for (y = 0; y < lev_fieldy; y++)
9790   {
9791     for (x = 0; x < lev_fieldx; x++)
9792     {
9793       if (Tile[x][y] == properties_element)
9794       {
9795         num_elements_in_level++;
9796       }
9797       else if (IS_MM_WALL(Tile[x][y]) &&
9798                map_mm_wall_element(Tile[x][y]) == properties_element)
9799       {
9800         num_hires_tiles_in_level += numHiresTiles(Tile[x][y]);
9801       }
9802     }
9803   }
9804
9805   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
9806
9807   DrawTextS(xpos, ypos, font1_nr, num_elements_text);
9808
9809   if (num_hires_tiles_in_level > 0)
9810     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
9811               "%d wall tiles", num_hires_tiles_in_level);
9812   else if (num_elements_in_level > 0)
9813     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
9814               "%d (%.2f %%)", num_elements_in_level, percentage);
9815   else
9816     DrawTextF(xpos + num_elements_text_len, ypos + font2_yoffset, font2_nr,
9817               none_text);
9818
9819   // ----- print number of similar elements / percentage of them in level
9820
9821   for (y = 0; y < lev_fieldy; y++)
9822   {
9823     for (x = 0; x < lev_fieldx; x++)
9824     {
9825       if (strEqual(element_info[Tile[x][y]].class_name,
9826                    element_info[properties_element].class_name))
9827       {
9828         num_similar_in_level++;
9829       }
9830     }
9831   }
9832
9833   if (num_similar_in_level != num_elements_in_level)
9834   {
9835     ypos += 1 * MAX(font1_height, font2_height);
9836
9837     percentage = num_similar_in_level * 100.0 / (lev_fieldx * lev_fieldy);
9838
9839     DrawTextS(xpos, ypos, font1_nr, num_similar_text);
9840
9841     if (num_similar_in_level > 0)
9842       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
9843                 "%d (%.2f %%)", num_similar_in_level, percentage);
9844     else
9845       DrawTextF(xpos + num_similar_text_len, ypos + font2_yoffset, font2_nr,
9846                 none_text);
9847   }
9848
9849   ypos += 2 * MAX(font1_height, font2_height);
9850
9851   // ----- print standard properties of this element
9852
9853   DrawTextS(xpos, ypos, font1_nr, properties_text);
9854
9855   ypos += line1_height;
9856
9857   for (i = 0; properties[i].value != -1; i++)
9858   {
9859     if (!HAS_PROPERTY(properties_element, properties[i].value))
9860       continue;
9861
9862     DrawTextS(xpos, ypos, font2_nr, properties[i].text);
9863
9864     ypos += font2_height;
9865
9866     num_standard_properties++;
9867   }
9868
9869   if (num_standard_properties == 0)
9870   {
9871     DrawTextS(xpos + properties_text_len, ypos - line1_height + font2_yoffset,
9872               font2_nr, none_text);
9873
9874     ypos -= (line1_height - font1_height);
9875   }
9876
9877   ypos += MAX(font1_height, font2_height);
9878
9879   // ----- print special description of this element
9880
9881   PrintInfoText(description_text, font1_nr, xpos, ypos);
9882
9883   ypos += line1_height;
9884
9885   if (PrintElementDescriptionFromFile(filename, font2_nr, xpos, ypos) == 0)
9886     PrintInfoText(no_description_text, font1_nr, xpos, ypos - line1_height);
9887 }
9888
9889 #define TEXT_COLLECTING         "Score for collecting"
9890 #define TEXT_SMASHING           "Score for smashing"
9891 #define TEXT_SLURPING           "Score for slurping robot"
9892 #define TEXT_CRACKING           "Score for cracking"
9893 #define TEXT_AMOEBA_SPEED       "Speed of amoeba growth"
9894 #define TEXT_DURATION           "Duration when activated"
9895 #define TEXT_DELAY_ON           "Delay before activating"
9896 #define TEXT_DELAY_OFF          "Delay before deactivating"
9897 #define TEXT_DELAY_CHANGING     "Delay before changing"
9898 #define TEXT_DELAY_EXPLODING    "Delay before exploding"
9899 #define TEXT_DELAY_MOVING       "Delay before moving"
9900 #define TEXT_BALL_DELAY         "Element generation delay"
9901 #define TEXT_MOVE_SPEED         "Speed of android moving"
9902 #define TEXT_CLONE_SPEED        "Speed of android cloning"
9903 #define TEXT_GAME_OF_LIFE_1     "Min neighbours to survive"
9904 #define TEXT_GAME_OF_LIFE_2     "Max neighbours to survive"
9905 #define TEXT_GAME_OF_LIFE_3     "Min neighbours to create"
9906 #define TEXT_GAME_OF_LIFE_4     "Max neighbours to create"
9907 #define TEXT_TIME_BONUS         "Extra time to solve level"
9908
9909 static struct
9910 {
9911   int element;
9912   int *value;
9913   char *text;
9914 } elements_with_counter[] =
9915 {
9916   { EL_EMERALD,         &level.score[SC_EMERALD],       TEXT_COLLECTING },
9917   { EL_BD_DIAMOND,      &level.score[SC_EMERALD],       TEXT_COLLECTING },
9918   { EL_EMERALD_YELLOW,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
9919   { EL_EMERALD_RED,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
9920   { EL_EMERALD_PURPLE,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
9921   { EL_SP_INFOTRON,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
9922   { EL_DIAMOND,         &level.score[SC_DIAMOND],       TEXT_COLLECTING },
9923   { EL_CRYSTAL,         &level.score[SC_CRYSTAL],       TEXT_COLLECTING },
9924   { EL_PEARL,           &level.score[SC_PEARL],         TEXT_COLLECTING },
9925   { EL_BUG,             &level.score[SC_BUG],           TEXT_SMASHING   },
9926   { EL_BUG_RIGHT,       &level.score[SC_BUG],           TEXT_SMASHING   },
9927   { EL_BUG_UP,          &level.score[SC_BUG],           TEXT_SMASHING   },
9928   { EL_BUG_LEFT,        &level.score[SC_BUG],           TEXT_SMASHING   },
9929   { EL_BUG_DOWN,        &level.score[SC_BUG],           TEXT_SMASHING   },
9930   { EL_BD_BUTTERFLY,    &level.score[SC_BUG],           TEXT_SMASHING   },
9931   { EL_BD_BUTTERFLY_RIGHT,&level.score[SC_BUG],         TEXT_SMASHING   },
9932   { EL_BD_BUTTERFLY_UP,   &level.score[SC_BUG],         TEXT_SMASHING   },
9933   { EL_BD_BUTTERFLY_LEFT, &level.score[SC_BUG],         TEXT_SMASHING   },
9934   { EL_BD_BUTTERFLY_DOWN, &level.score[SC_BUG],         TEXT_SMASHING   },
9935   { EL_SP_ELECTRON,     &level.score[SC_BUG],           TEXT_SMASHING   },
9936   { EL_SPACESHIP,       &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9937   { EL_SPACESHIP_RIGHT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9938   { EL_SPACESHIP_UP,    &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9939   { EL_SPACESHIP_LEFT,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9940   { EL_SPACESHIP_DOWN,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9941   { EL_BD_FIREFLY,      &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9942   { EL_BD_FIREFLY_RIGHT,&level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9943   { EL_BD_FIREFLY_UP,   &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9944   { EL_BD_FIREFLY_LEFT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9945   { EL_BD_FIREFLY_DOWN, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9946   { EL_SP_SNIKSNAK,     &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
9947   { EL_YAMYAM,          &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9948   { EL_YAMYAM_LEFT,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9949   { EL_YAMYAM_RIGHT,    &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9950   { EL_YAMYAM_UP,       &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9951   { EL_YAMYAM_DOWN,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9952   { EL_DARK_YAMYAM,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
9953   { EL_ROBOT,           &level.score[SC_ROBOT],         TEXT_SMASHING   },
9954   { EL_PACMAN,          &level.score[SC_PACMAN],        TEXT_SMASHING   },
9955   { EL_PACMAN_RIGHT,    &level.score[SC_PACMAN],        TEXT_SMASHING   },
9956   { EL_PACMAN_UP,       &level.score[SC_PACMAN],        TEXT_SMASHING   },
9957   { EL_PACMAN_LEFT,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
9958   { EL_PACMAN_DOWN,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
9959   { EL_NUT,             &level.score[SC_NUT],           TEXT_CRACKING   },
9960   { EL_DYNAMITE,        &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
9961   { EL_EM_DYNAMITE,     &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
9962   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],TEXT_COLLECTING },
9963   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],TEXT_COLLECTING },
9964   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],TEXT_COLLECTING },
9965   { EL_SHIELD_NORMAL,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
9966   { EL_SHIELD_DEADLY,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
9967   { EL_EXTRA_TIME,      &level.extra_time_score,        TEXT_COLLECTING },
9968   { EL_KEY_1,           &level.score[SC_KEY],           TEXT_COLLECTING },
9969   { EL_KEY_2,           &level.score[SC_KEY],           TEXT_COLLECTING },
9970   { EL_KEY_3,           &level.score[SC_KEY],           TEXT_COLLECTING },
9971   { EL_KEY_4,           &level.score[SC_KEY],           TEXT_COLLECTING },
9972   { EL_EM_KEY_1,        &level.score[SC_KEY],           TEXT_COLLECTING },
9973   { EL_EM_KEY_2,        &level.score[SC_KEY],           TEXT_COLLECTING },
9974   { EL_EM_KEY_3,        &level.score[SC_KEY],           TEXT_COLLECTING },
9975   { EL_EM_KEY_4,        &level.score[SC_KEY],           TEXT_COLLECTING },
9976   { EL_EMC_KEY_5,       &level.score[SC_KEY],           TEXT_COLLECTING },
9977   { EL_EMC_KEY_6,       &level.score[SC_KEY],           TEXT_COLLECTING },
9978   { EL_EMC_KEY_7,       &level.score[SC_KEY],           TEXT_COLLECTING },
9979   { EL_EMC_KEY_8,       &level.score[SC_KEY],           TEXT_COLLECTING },
9980   { EL_DC_KEY_WHITE,    &level.score[SC_KEY],           TEXT_COLLECTING },
9981   { EL_MM_KETTLE,       &level.score[SC_EMERALD],       TEXT_COLLECTING },
9982   { EL_DF_CELL,         &level.score[SC_EMERALD],       TEXT_COLLECTING },
9983   { EL_MM_KEY,          &level.score[SC_KEY],           TEXT_COLLECTING },
9984   { EL_MM_LIGHTBALL,    &level.score[SC_ELEM_BONUS],    TEXT_COLLECTING },
9985   { EL_MM_PACMAN,       &level.score[SC_PACMAN],        TEXT_SMASHING   },
9986   { EL_MM_PACMAN_RIGHT, &level.score[SC_PACMAN],        TEXT_SMASHING   },
9987   { EL_MM_PACMAN_UP,    &level.score[SC_PACMAN],        TEXT_SMASHING   },
9988   { EL_MM_PACMAN_LEFT,  &level.score[SC_PACMAN],        TEXT_SMASHING   },
9989   { EL_MM_PACMAN_DOWN,  &level.score[SC_PACMAN],        TEXT_SMASHING   },
9990   { EL_AMOEBA_WET,      &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
9991   { EL_AMOEBA_DRY,      &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
9992   { EL_AMOEBA_FULL,     &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
9993   { EL_BD_AMOEBA,       &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
9994   { EL_EMC_DRIPPER,     &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
9995   { EL_MAGIC_WALL,      &level.time_magic_wall,         TEXT_DURATION   },
9996   { EL_BD_MAGIC_WALL,   &level.time_magic_wall,         TEXT_DURATION   },
9997   { EL_DC_MAGIC_WALL,   &level.time_magic_wall,         TEXT_DURATION   },
9998   { EL_ROBOT_WHEEL,     &level.time_wheel,              TEXT_DURATION   },
9999
10000   { EL_TIMEGATE_SWITCH,   &level.time_timegate,         TEXT_DURATION   },
10001   { EL_DC_TIMEGATE_SWITCH,&level.time_timegate,         TEXT_DURATION   },
10002   { EL_LIGHT_SWITCH,    &level.time_light,              TEXT_DURATION   },
10003   { EL_LIGHT_SWITCH_ACTIVE, &level.time_light,          TEXT_DURATION   },
10004   { EL_SHIELD_NORMAL,   &level.shield_normal_time,      TEXT_DURATION   },
10005   { EL_SHIELD_DEADLY,   &level.shield_deadly_time,      TEXT_DURATION   },
10006   { EL_EXTRA_TIME,      &level.extra_time,              TEXT_TIME_BONUS },
10007   { EL_TIME_ORB_FULL,   &level.time_orb_time,           TEXT_TIME_BONUS },
10008   { EL_GAME_OF_LIFE,    &level.game_of_life[0],         TEXT_GAME_OF_LIFE_1 },
10009   { EL_GAME_OF_LIFE,    &level.game_of_life[1],         TEXT_GAME_OF_LIFE_2 },
10010   { EL_GAME_OF_LIFE,    &level.game_of_life[2],         TEXT_GAME_OF_LIFE_3 },
10011   { EL_GAME_OF_LIFE,    &level.game_of_life[3],         TEXT_GAME_OF_LIFE_4 },
10012   { EL_BIOMAZE,         &level.biomaze[0],              TEXT_GAME_OF_LIFE_1 },
10013   { EL_BIOMAZE,         &level.biomaze[1],              TEXT_GAME_OF_LIFE_2 },
10014   { EL_BIOMAZE,         &level.biomaze[2],              TEXT_GAME_OF_LIFE_3 },
10015   { EL_BIOMAZE,         &level.biomaze[3],              TEXT_GAME_OF_LIFE_4 },
10016
10017   { EL_EMC_ANDROID,     &level.android_move_time,       TEXT_MOVE_SPEED },
10018   { EL_EMC_ANDROID,     &level.android_clone_time,      TEXT_CLONE_SPEED },
10019   { EL_EMC_MAGIC_BALL,  &level.ball_time,               TEXT_BALL_DELAY },
10020   { EL_EMC_LENSES,      &level.lenses_score,            TEXT_COLLECTING },
10021   { EL_EMC_MAGNIFIER,   &level.magnify_score,           TEXT_COLLECTING },
10022   { EL_SPRING,          &level.slurp_score,             TEXT_SLURPING   },
10023   { EL_SPRING_LEFT,     &level.slurp_score,             TEXT_SLURPING   },
10024   { EL_SPRING_RIGHT,    &level.slurp_score,             TEXT_SLURPING   },
10025   { EL_EMC_LENSES,      &level.lenses_time,             TEXT_DURATION   },
10026   { EL_EMC_MAGNIFIER,   &level.magnify_time,            TEXT_DURATION   },
10027   { EL_MM_FUSE_ACTIVE,  &level.mm_time_fuse,            TEXT_DELAY_OFF  },
10028   { EL_MM_BOMB,         &level.mm_time_bomb,            TEXT_DELAY_EXPLODING },
10029   { EL_MM_GRAY_BALL,    &level.mm_time_ball,            TEXT_DELAY_CHANGING },
10030   { EL_MM_STEEL_BLOCK,  &level.mm_time_block,           TEXT_DELAY_MOVING },
10031   { EL_MM_WOODEN_BLOCK, &level.mm_time_block,           TEXT_DELAY_MOVING },
10032
10033   { -1,                 NULL,                           NULL            }
10034 };
10035
10036 static boolean checkPropertiesConfig(int element)
10037 {
10038   int i;
10039
10040   if (IS_GEM(element) ||
10041       IS_CUSTOM_ELEMENT(element) ||
10042       IS_GROUP_ELEMENT(element) ||
10043       IS_EMPTY_ELEMENT(element) ||
10044       IS_BALLOON_ELEMENT(element) ||
10045       IS_ENVELOPE(element) ||
10046       IS_MM_ENVELOPE(element) ||
10047       IS_MM_MCDUFFIN(element) ||
10048       IS_DF_LASER(element) ||
10049       IS_PLAYER_ELEMENT(element) ||
10050       HAS_EDITOR_CONTENT(element) ||
10051       CAN_GROW(element) ||
10052       COULD_MOVE_INTO_ACID(element) ||
10053       MAYBE_DONT_COLLIDE_WITH(element) ||
10054       element == EL_SOKOBAN_OBJECT ||
10055       element == EL_SOKOBAN_FIELD_EMPTY ||
10056       element == EL_SOKOBAN_FIELD_FULL)
10057     return TRUE;
10058   else
10059     for (i = 0; elements_with_counter[i].element != -1; i++)
10060       if (elements_with_counter[i].element == element)
10061         return TRUE;
10062
10063   return FALSE;
10064 }
10065
10066 static void SetAutomaticNumberOfGemsNeeded(void)
10067 {
10068   int x, y;
10069
10070   if (!level.auto_count_gems)
10071     return;
10072
10073   level.gems_needed = 0;
10074
10075   for (x = 0; x < lev_fieldx; x++)
10076   {
10077     for (y = 0; y < lev_fieldy; y++)
10078     {
10079       int element = Tile[x][y];
10080
10081       switch (element)
10082       {
10083         case EL_EMERALD:
10084         case EL_EMERALD_YELLOW:
10085         case EL_EMERALD_RED:
10086         case EL_EMERALD_PURPLE:
10087         case EL_BD_DIAMOND:
10088         case EL_WALL_EMERALD:
10089         case EL_WALL_EMERALD_YELLOW:
10090         case EL_WALL_EMERALD_RED:
10091         case EL_WALL_EMERALD_PURPLE:
10092         case EL_WALL_BD_DIAMOND:
10093         case EL_NUT:
10094         case EL_SP_INFOTRON:
10095         case EL_MM_KETTLE:
10096         case EL_DF_CELL:
10097           level.gems_needed++;
10098           break;
10099
10100         case EL_DIAMOND:
10101         case EL_WALL_DIAMOND:
10102           level.gems_needed += 3;
10103           break;
10104
10105         case EL_PEARL:
10106         case EL_WALL_PEARL:
10107           level.gems_needed += 5;
10108           break;
10109
10110         case EL_CRYSTAL:
10111         case EL_WALL_CRYSTAL:
10112           level.gems_needed += 8;
10113           break;
10114
10115         default:
10116           break;
10117       }
10118     }
10119   }
10120
10121   ModifyEditorCounterValue(ED_COUNTER_ID_LEVEL_GEMSLIMIT, level.gems_needed);
10122 }
10123
10124 static void DrawPropertiesConfig(void)
10125 {
10126   boolean draw_footer_line = FALSE;
10127   int max_num_element_counters = 4;
10128   int num_element_counters = 0;
10129   int i;
10130
10131   if (!checkPropertiesConfig(properties_element))
10132   {
10133     int xpos = ED_ELEMENT_SETTINGS_X(0);
10134     int ypos = ED_ELEMENT_SETTINGS_Y(0) + ED_GADGET_SMALL_DISTANCE;
10135
10136     PrintInfoText("No configuration options available.",
10137                   FONT_TEXT_1, xpos, ypos);
10138
10139     return;
10140   }
10141
10142   // check if there are elements where a value can be chosen for
10143   for (i = 0; elements_with_counter[i].element != -1; i++)
10144   {
10145     if (elements_with_counter[i].element == properties_element)
10146     {
10147       int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
10148
10149       counterbutton_info[counter_id].y =
10150         ED_ELEMENT_SETTINGS_YPOS(
10151                 (HAS_EDITOR_CONTENT(properties_element)      ? 1 : 0) +
10152                 (CAN_GROW(properties_element)                ? 1 : 0) +
10153                 (COULD_MOVE_INTO_ACID(properties_element)    ? 1 : 0) +
10154                 (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0) +
10155                 (properties_element == EL_EMC_MAGIC_BALL     ? 2 : 0) +
10156                 num_element_counters);
10157
10158       counterbutton_info[counter_id].value = elements_with_counter[i].value;
10159       counterbutton_info[counter_id].text_right= elements_with_counter[i].text;
10160
10161       if (properties_element == EL_GAME_OF_LIFE ||
10162           properties_element == EL_BIOMAZE)
10163       {
10164         counterbutton_info[counter_id].min_value = 0;   // min neighbours
10165         counterbutton_info[counter_id].max_value = 8;   // max neighbours
10166       }
10167       else
10168       {
10169         // !!! CHANGE THIS FOR CERTAIN ELEMENTS !!!
10170         counterbutton_info[counter_id].min_value = MIN_SCORE;
10171         counterbutton_info[counter_id].max_value = MAX_SCORE;
10172       }
10173
10174       MapCounterButtons(counter_id);
10175
10176       num_element_counters++;
10177       if (num_element_counters >= max_num_element_counters)
10178         break;
10179     }
10180   }
10181
10182   if (HAS_EDITOR_CONTENT(properties_element))
10183   {
10184     // draw stickybutton gadget
10185     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10186
10187     if (IS_AMOEBOID(properties_element))
10188       MapDrawingArea(ED_DRAWING_ID_AMOEBA_CONTENT);
10189     else if (properties_element == EL_YAMYAM ||
10190              properties_element == EL_YAMYAM_LEFT ||
10191              properties_element == EL_YAMYAM_RIGHT ||
10192              properties_element == EL_YAMYAM_UP ||
10193              properties_element == EL_YAMYAM_DOWN)
10194       DrawYamYamContentAreas();
10195     else if (properties_element == EL_EMC_MAGIC_BALL)
10196     {
10197       DrawMagicBallContentAreas();
10198
10199       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT);
10200       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_BALL_ACTIVE);
10201     }
10202     else if (properties_element == EL_EMC_ANDROID)
10203       DrawAndroidElementArea();
10204     else if (properties_element == EL_MM_GRAY_BALL)
10205     {
10206       MapCounterButtons(ED_COUNTER_ID_MM_BALL_CONTENT);
10207       MapSelectboxGadget(ED_SELECTBOX_ID_MM_BALL_CHOICE_MODE);
10208       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_ROTATE_MM_BALL_CONTENT);
10209       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EXPLODE_MM_BALL);
10210
10211       DrawMMBallContentArea();
10212     }
10213   }
10214
10215   if (IS_PLAYER_ELEMENT(properties_element))
10216   {
10217     int player_nr = GET_PLAYER_NR(properties_element);
10218
10219     // these properties can be set for every player individually
10220
10221     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
10222     {
10223       drawingarea_info[ED_DRAWING_ID_START_ELEMENT].value =
10224         &level.start_element[player_nr];
10225       drawingarea_info[ED_DRAWING_ID_ARTWORK_ELEMENT].value =
10226         &level.artwork_element[player_nr];
10227       drawingarea_info[ED_DRAWING_ID_EXPLOSION_ELEMENT].value =
10228         &level.explosion_element[player_nr];
10229
10230       checkbutton_info[ED_CHECKBUTTON_ID_USE_START_ELEMENT].value =
10231         &level.use_start_element[player_nr];
10232       checkbutton_info[ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT].value =
10233         &level.use_artwork_element[player_nr];
10234       checkbutton_info[ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT].value =
10235         &level.use_explosion_element[player_nr];
10236       checkbutton_info[ED_CHECKBUTTON_ID_INITIAL_GRAVITY].value =
10237         &level.initial_player_gravity[player_nr];
10238
10239       selectbox_info[ED_SELECTBOX_ID_PLAYER_SPEED].value =
10240         &level.initial_player_stepsize[player_nr];
10241
10242       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID);
10243       MapCheckbuttonGadget(properties_element == EL_SP_MURPHY ?
10244                            ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD :
10245                            ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
10246       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
10247       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
10248       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
10249       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
10250       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_LAZY_RELOCATION);
10251       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
10252       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
10253       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
10254       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_GRAVITY);
10255       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
10256       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER);
10257
10258       MapDrawingArea(ED_DRAWING_ID_START_ELEMENT);
10259       MapDrawingArea(ED_DRAWING_ID_ARTWORK_ELEMENT);
10260       MapDrawingArea(ED_DRAWING_ID_EXPLOSION_ELEMENT);
10261
10262       MapSelectboxGadget(ED_SELECTBOX_ID_PLAYER_SPEED);
10263     }
10264     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
10265     {
10266       drawingarea_info[ED_DRAWING_ID_INVENTORY_CONTENT].value =
10267         &level.initial_inventory_content[player_nr][0];
10268
10269       counterbutton_info[ED_COUNTER_ID_INVENTORY_SIZE].value =
10270         &level.initial_inventory_size[player_nr];
10271
10272       checkbutton_info[ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY].value =
10273         &level.use_initial_inventory[player_nr];
10274
10275       // draw checkbutton gadgets
10276       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
10277       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT);
10278       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE);
10279
10280       // draw counter gadgets
10281       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
10282
10283       // draw drawing area gadgets
10284       DrawPlayerInitialInventoryArea(properties_element);
10285     }
10286   }
10287
10288   if (IS_GEM(properties_element))
10289     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
10290
10291   if (properties_element == EL_EM_DYNAMITE)
10292     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
10293
10294   if (COULD_MOVE_INTO_ACID(properties_element) &&
10295       !IS_PLAYER_ELEMENT(properties_element) &&
10296       (!IS_CUSTOM_ELEMENT(properties_element) ||
10297        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
10298   {
10299     // set position for checkbutton for "can move into acid"
10300     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
10301       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
10302     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
10303       ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 7 :
10304                                IS_BALLOON_ELEMENT(properties_element) ||
10305                                HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
10306
10307     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
10308   }
10309
10310   if (MAYBE_DONT_COLLIDE_WITH(properties_element))
10311     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH);
10312
10313   if (properties_element == EL_SPRING ||
10314       properties_element == EL_SPRING_LEFT ||
10315       properties_element == EL_SPRING_RIGHT)
10316     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_SPRING_BUG);
10317
10318   if (properties_element == EL_TIME_ORB_FULL)
10319     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG);
10320
10321   if (properties_element == EL_GAME_OF_LIFE ||
10322       properties_element == EL_BIOMAZE)
10323     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_LIFE_BUGS);
10324
10325   if (CAN_GROW(properties_element))
10326   {
10327     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
10328       ED_ELEMENT_SETTINGS_YPOS(HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
10329
10330     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
10331   }
10332
10333   if (properties_element == EL_SOKOBAN_FIELD_EMPTY)
10334     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_FIELDS_NEEDED);
10335
10336   if (properties_element == EL_SOKOBAN_OBJECT)
10337     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED);
10338
10339   if (properties_element == EL_SOKOBAN_OBJECT ||
10340       properties_element == EL_SOKOBAN_FIELD_EMPTY ||
10341       properties_element == EL_SOKOBAN_FIELD_FULL)
10342   {
10343     checkbutton_info[ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN].y =
10344       ED_ELEMENT_SETTINGS_XPOS(properties_element == EL_SOKOBAN_FIELD_FULL ?
10345                                0 : 1);
10346
10347     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN);
10348   }
10349
10350   if (IS_BALLOON_ELEMENT(properties_element))
10351     MapSelectboxGadget(ED_SELECTBOX_ID_WIND_DIRECTION);
10352
10353   if (IS_ENVELOPE(properties_element) ||
10354       IS_MM_ENVELOPE(properties_element))
10355   {
10356     int counter1_id = ED_COUNTER_ID_ENVELOPE_XSIZE;
10357     int counter2_id = ED_COUNTER_ID_ENVELOPE_YSIZE;
10358     int button1_id = ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP;
10359     int button2_id = ED_CHECKBUTTON_ID_ENVELOPE_CENTERED;
10360     int envelope_nr = ENVELOPE_NR(properties_element);
10361
10362     counterbutton_info[counter1_id].value = &level.envelope[envelope_nr].xsize;
10363     counterbutton_info[counter2_id].value = &level.envelope[envelope_nr].ysize;
10364
10365     checkbutton_info[button1_id].value = &level.envelope[envelope_nr].autowrap;
10366     checkbutton_info[button2_id].value = &level.envelope[envelope_nr].centered;
10367
10368     // display counter to choose size of envelope text area
10369     MapCounterButtons(counter1_id);
10370     MapCounterButtons(counter2_id);
10371
10372     // display checkbuttons to choose auto-wrap and alignment properties
10373     MapCheckbuttonGadget(button1_id);
10374     MapCheckbuttonGadget(button2_id);
10375
10376     DrawEnvelopeTextArea(envelope_nr);
10377   }
10378
10379   if (IS_MM_MCDUFFIN(properties_element))
10380   {
10381     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_RED);
10382     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_GREEN);
10383     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_MM_LASER_BLUE);
10384   }
10385
10386   if (IS_DF_LASER(properties_element))
10387   {
10388     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_RED);
10389     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_GREEN);
10390     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DF_LASER_BLUE);
10391   }
10392
10393   if (IS_CUSTOM_ELEMENT(properties_element))
10394   {
10395     // draw stickybutton gadget
10396     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10397
10398     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
10399     {
10400       // draw checkbutton gadgets
10401       for (i =  ED_CHECKBUTTON_ID_CUSTOM1_FIRST;
10402            i <= ED_CHECKBUTTON_ID_CUSTOM1_LAST; i++)
10403         MapCheckbuttonGadget(i);
10404
10405       // draw counter gadgets
10406       for (i =  ED_COUNTER_ID_CUSTOM1_FIRST;
10407            i <= ED_COUNTER_ID_CUSTOM1_LAST; i++)
10408         MapCounterButtons(i);
10409
10410       // draw selectbox gadgets
10411       for (i =  ED_SELECTBOX_ID_CUSTOM1_FIRST;
10412            i <= ED_SELECTBOX_ID_CUSTOM1_LAST; i++)
10413         MapSelectboxGadget(i);
10414
10415       // draw textbutton gadgets
10416       MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
10417
10418       // draw text input gadgets
10419       MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
10420
10421       // draw drawing area gadgets
10422       MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
10423
10424       draw_footer_line = TRUE;
10425     }
10426     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
10427     {
10428       // draw checkbutton gadgets
10429       for (i =  ED_CHECKBUTTON_ID_CUSTOM2_FIRST;
10430            i <= ED_CHECKBUTTON_ID_CUSTOM2_LAST; i++)
10431         MapCheckbuttonGadget(i);
10432
10433       // draw counter gadgets
10434       for (i =  ED_COUNTER_ID_CUSTOM2_FIRST;
10435            i <= ED_COUNTER_ID_CUSTOM2_LAST; i++)
10436         MapCounterButtons(i);
10437
10438       // draw selectbox gadgets
10439       for (i =  ED_SELECTBOX_ID_CUSTOM2_FIRST;
10440            i <= ED_SELECTBOX_ID_CUSTOM2_LAST; i++)
10441         MapSelectboxGadget(i);
10442
10443       // draw drawing area gadgets
10444       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_ENTER);
10445       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_LEAVE);
10446       DrawCustomContentArea();
10447     }
10448   }
10449   else if (IS_GROUP_ELEMENT(properties_element))
10450   {
10451     // draw stickybutton gadget
10452     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10453
10454     // draw checkbutton gadgets
10455     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
10456     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
10457
10458     // draw counter gadgets
10459     MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
10460
10461     // draw selectbox gadgets
10462     MapSelectboxGadget(ED_SELECTBOX_ID_GROUP_CHOICE_MODE);
10463
10464     // draw textbutton gadgets
10465     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
10466
10467     // draw drawing area gadgets
10468     DrawGroupElementArea();
10469
10470     // draw text input gadgets
10471     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
10472
10473     // draw drawing area gadgets
10474     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
10475
10476     draw_footer_line = TRUE;
10477   }
10478   else if (IS_EMPTY_ELEMENT(properties_element))
10479   {
10480     // draw stickybutton gadget
10481     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10482
10483     // draw checkbutton gadgets
10484     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
10485     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1);
10486
10487     // draw textbutton gadgets
10488     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1);
10489
10490     // draw drawing area gadgets
10491     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
10492
10493     draw_footer_line = TRUE;
10494   }
10495
10496   // draw little footer border line above CE/GE use/save template gadgets
10497   if (draw_footer_line)
10498   {
10499     struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
10500     struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
10501     int gd_x = gd->x + gd_gi1->border.width / 2;
10502     int gd_y = gd->y + gd_gi1->height - 1;
10503     Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
10504
10505     if (tab_color != BLACK_PIXEL)               // black => transparent
10506       FillRectangle(drawto,
10507                     SX + ED_ELEMENT_SETTINGS_X(0),
10508                     SY + ED_ELEMENT_SETTINGS_Y(14) - ED_SETTINGS_TABS_YOFFSET -
10509                     ED_TAB_BAR_HEIGHT,
10510                     getTabulatorBarWidth(), getTabulatorBarHeight(), tab_color);
10511   }
10512 }
10513
10514 static void DrawPropertiesChangeDrawingAreas(void)
10515 {
10516   if (IS_CUSTOM_ELEMENT(properties_element))
10517   {
10518     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TARGET);
10519     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER);
10520     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_ACTION);
10521
10522     DrawCustomChangeContentArea();
10523   }
10524
10525   redraw_mask |= REDRAW_FIELD;
10526 }
10527
10528 static void DrawPropertiesChange(void)
10529 {
10530   int i;
10531
10532   // needed to initially set selectbox options for special action options
10533   setSelectboxSpecialActionOptions();
10534
10535   // draw stickybutton gadget
10536   MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
10537
10538   // draw checkbutton gadgets
10539   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
10540        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
10541     MapCheckbuttonGadget(i);
10542
10543   // draw counter gadgets
10544   for (i =  ED_COUNTER_ID_CHANGE_FIRST;
10545        i <= ED_COUNTER_ID_CHANGE_LAST; i++)
10546     MapCounterButtons(i);
10547
10548   // draw selectbox gadgets
10549   for (i =  ED_SELECTBOX_ID_CHANGE_FIRST;
10550        i <= ED_SELECTBOX_ID_CHANGE_LAST; i++)
10551     MapSelectboxGadget(i);
10552
10553   // draw textbutton gadgets
10554   for (i =  ED_TEXTBUTTON_ID_CHANGE_FIRST;
10555        i <= ED_TEXTBUTTON_ID_CHANGE_LAST; i++)
10556     MapTextbuttonGadget(i);
10557
10558   // draw graphicbutton gadgets
10559   for (i =  ED_GRAPHICBUTTON_ID_CHANGE_FIRST;
10560        i <= ED_GRAPHICBUTTON_ID_CHANGE_LAST; i++)
10561     MapGraphicbuttonGadget(i);
10562
10563   // draw drawing area gadgets
10564   DrawPropertiesChangeDrawingAreas();
10565 }
10566
10567 static void DrawEditorElementAnimation(int x, int y)
10568 {
10569   int graphic = el2img(properties_element);
10570   int frame = (ANIM_MODE(graphic) == ANIM_CE_VALUE ?
10571                custom_element.ce_value_fixed_initial :
10572                ANIM_MODE(graphic) == ANIM_CE_SCORE ?
10573                custom_element.collect_score_initial : FrameCounter);
10574
10575   DrawFixedGraphicAnimationExt(drawto, x, y, graphic, frame, NO_MASKING);
10576 }
10577
10578 static void DrawEditorElementName(int x, int y, int font_nr)
10579 {
10580   char *element_name = getElementInfoText(properties_element);
10581   int font_width = getFontWidth(font_nr);
10582   int font_height = getFontHeight(font_nr);
10583   int max_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_X(0);
10584   int max_chars_per_line = max_text_width / font_width;
10585
10586   if (strlen(element_name) <= max_chars_per_line)
10587     DrawTextS(x, y, font_nr, element_name);
10588   else
10589   {
10590     char buffer[max_chars_per_line + 1];
10591     int next_pos = max_chars_per_line;
10592
10593     strncpy(buffer, element_name, max_chars_per_line);
10594     buffer[max_chars_per_line] = '\0';
10595
10596     if (element_name[max_chars_per_line] == ' ')
10597       next_pos++;
10598     else
10599     {
10600       int i;
10601
10602       for (i = max_chars_per_line - 1; i >= 0; i--)
10603         if (buffer[i] == ' ')
10604           break;
10605
10606       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
10607       {
10608         buffer[i] = '\0';
10609         next_pos = i + 1;
10610       }
10611     }
10612
10613     DrawTextS(x, y - font_height / 2, font_nr, buffer);
10614
10615     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
10616     buffer[max_chars_per_line] = '\0';
10617
10618     DrawTextS(x, y + font_height / 2, font_nr, buffer);
10619   }
10620 }
10621
10622 static void DrawPropertiesWindow(void)
10623 {
10624   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
10625   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
10626   int border_size = gd->border_size;
10627   int font_nr = FONT_TEXT_1;
10628   int font_height = getFontHeight(font_nr);
10629   int xoffset = TILEX + element_border + 3 * border_size;
10630   int yoffset = (TILEY - font_height) / 2;
10631   int x1 = editor.settings.element_graphic.x + element_border;
10632   int y1 = editor.settings.element_graphic.y + element_border;
10633   int x2 = (editor.settings.element_name.x == -1 ? x1 + xoffset :
10634             editor.settings.element_name.x);
10635   int y2 = (editor.settings.element_name.y == -1 ? y1 + yoffset :
10636             editor.settings.element_name.y);
10637   char *text = "Element Settings";
10638   int font2_nr = FONT_TITLE_1;
10639   struct MenuPosInfo *pos = &editor.settings.headline;
10640   int sx = SX + ALIGNED_XPOS(pos->x, getTextWidth(text, font2_nr), pos->align);
10641   int sy = SY + pos->y;
10642
10643   stick_element_properties_window = FALSE;
10644
10645   // make sure that previous properties edit mode exists for this element
10646   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG_2 &&
10647       !IS_CUSTOM_ELEMENT(properties_element))
10648     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
10649
10650   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
10651       !IS_PLAYER_ELEMENT(properties_element) &&
10652       !IS_CUSTOM_ELEMENT(properties_element))
10653     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
10654
10655   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
10656       (IS_PLAYER_ELEMENT(properties_element) ||
10657        IS_CUSTOM_ELEMENT(properties_element)))
10658     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
10659
10660   CopyElementPropertiesToEditor(properties_element);
10661
10662   UnmapLevelEditorFieldGadgets();
10663   UnmapLevelEditorToolboxDrawingGadgets();
10664   UnmapLevelEditorToolboxCustomGadgets();
10665
10666   if (IS_CUSTOM_ELEMENT(properties_element) ||
10667       IS_GROUP_ELEMENT(properties_element))
10668     MapLevelEditorToolboxCustomGadgets();
10669
10670   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10671   ClearField();
10672
10673   DrawText(sx, sy, text, font2_nr);
10674
10675   FrameCounter = 0;     // restart animation frame counter
10676
10677   DrawElementBorder(SX + x1, SY + y1, TILEX, TILEY, FALSE);
10678   DrawEditorElementAnimation(SX + x1, SY + y1);
10679   DrawEditorElementName(x2, y2, font_nr);
10680
10681   DrawPropertiesTabulatorGadgets();
10682
10683   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
10684     DrawPropertiesInfo();
10685   else if (edit_mode_properties == ED_MODE_PROPERTIES_CHANGE)
10686     DrawPropertiesChange();
10687   else  // (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG[_1|_2])
10688     DrawPropertiesConfig();
10689 }
10690
10691 static void DrawPaletteWindow(void)
10692 {
10693   int i;
10694
10695   UnmapLevelEditorFieldGadgets();
10696
10697   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
10698   ClearField();
10699
10700   // map buttons to select elements
10701   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
10702     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
10703   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
10704   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
10705   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
10706 }
10707
10708 static void UpdateCustomElementGraphicGadgets(void)
10709 {
10710   int i;
10711
10712   InitElementPropertiesGfxElement();
10713
10714   ModifyEditorElementList();
10715   RedrawDrawingElements();
10716
10717   // force redraw of all mapped drawing area gadgets
10718   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
10719   {
10720     struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[i].gadget_id];
10721
10722     if (gi->mapped)
10723       MapDrawingArea(i);
10724   }
10725 }
10726
10727 static int getOpenDirectionFromTube(int element)
10728 {
10729   switch (element)
10730   {
10731     case EL_TUBE_LEFT_UP:               return (MV_LEFT | MV_UP);
10732     case EL_TUBE_LEFT_DOWN:             return (MV_LEFT | MV_DOWN);
10733     case EL_TUBE_RIGHT_UP:              return (MV_RIGHT | MV_UP);
10734     case EL_TUBE_RIGHT_DOWN:            return (MV_RIGHT | MV_DOWN);
10735     case EL_TUBE_HORIZONTAL:            return (MV_HORIZONTAL);
10736     case EL_TUBE_HORIZONTAL_UP:         return (MV_HORIZONTAL | MV_UP);
10737     case EL_TUBE_HORIZONTAL_DOWN:       return (MV_HORIZONTAL | MV_DOWN);
10738     case EL_TUBE_VERTICAL:              return (MV_VERTICAL);
10739     case EL_TUBE_VERTICAL_LEFT:         return (MV_VERTICAL | MV_LEFT);
10740     case EL_TUBE_VERTICAL_RIGHT:        return (MV_VERTICAL | MV_RIGHT);
10741     case EL_TUBE_ANY:                   return (MV_ANY_DIRECTION);
10742   }
10743
10744   return MV_NONE;
10745 }
10746
10747 static int getTubeFromOpenDirection(int direction)
10748 {
10749   switch (direction)
10750   {
10751     case (MV_LEFT | MV_UP):             return EL_TUBE_LEFT_UP;
10752     case (MV_LEFT | MV_DOWN):           return EL_TUBE_LEFT_DOWN;
10753     case (MV_RIGHT | MV_UP):            return EL_TUBE_RIGHT_UP;
10754     case (MV_RIGHT | MV_DOWN):          return EL_TUBE_RIGHT_DOWN;
10755     case (MV_HORIZONTAL):               return EL_TUBE_HORIZONTAL;
10756     case (MV_HORIZONTAL | MV_UP):       return EL_TUBE_HORIZONTAL_UP;
10757     case (MV_HORIZONTAL | MV_DOWN):     return EL_TUBE_HORIZONTAL_DOWN;
10758     case (MV_VERTICAL):                 return EL_TUBE_VERTICAL;
10759     case (MV_VERTICAL | MV_LEFT):       return EL_TUBE_VERTICAL_LEFT;
10760     case (MV_VERTICAL | MV_RIGHT):      return EL_TUBE_VERTICAL_RIGHT;
10761     case (MV_ANY_DIRECTION):            return EL_TUBE_ANY;
10762
10763     // if only one direction, fall back to simple tube with that direction
10764     case (MV_LEFT):                     return EL_TUBE_HORIZONTAL;
10765     case (MV_RIGHT):                    return EL_TUBE_HORIZONTAL;
10766     case (MV_UP):                       return EL_TUBE_VERTICAL;
10767     case (MV_DOWN):                     return EL_TUBE_VERTICAL;
10768   }
10769
10770   return EL_EMPTY;
10771 }
10772
10773 static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
10774 {
10775   int element_new = getTubeFromOpenDirection(direction);
10776
10777   return (element_new != EL_EMPTY ? element_new : element_old);
10778 }
10779
10780 static int getOpenDirectionFromBelt(int element)
10781 {
10782   int belt_dir = getBeltDirFromBeltElement(element);
10783
10784   return (belt_dir == MV_LEFT ? MV_RIGHT :
10785           belt_dir == MV_RIGHT ? MV_LEFT :
10786           belt_dir == MV_NONE ? MV_HORIZONTAL : belt_dir);
10787 }
10788
10789 static int getBeltFromNrAndOpenDirection(int nr, int direction)
10790 {
10791   int belt_dir = (direction == MV_LEFT ? MV_RIGHT :
10792                   direction == MV_RIGHT ? MV_LEFT :
10793                   direction == MV_HORIZONTAL ? MV_NONE : direction);
10794
10795   if (direction == MV_NONE)
10796     return EL_EMPTY;
10797
10798   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
10799 }
10800
10801 static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
10802                                                  int element_old)
10803 {
10804   int element_new = getBeltFromNrAndOpenDirection(nr, direction);
10805
10806   return (element_new != EL_EMPTY ? element_new : element_old);
10807 }
10808
10809 static int getOpenDirectionFromPool(int element)
10810 {
10811   switch (element)
10812   {
10813     case EL_ACID_POOL_TOPLEFT:          return (MV_DOWN | MV_RIGHT);
10814     case EL_ACID_POOL_TOPRIGHT:         return (MV_DOWN | MV_LEFT);
10815     case EL_ACID_POOL_BOTTOMLEFT:       return (MV_UP | MV_RIGHT);
10816     case EL_ACID_POOL_BOTTOMRIGHT:      return (MV_UP | MV_LEFT);
10817     case EL_ACID_POOL_BOTTOM:           return (MV_HORIZONTAL | MV_UP);
10818     case EL_ACID:                       return (MV_HORIZONTAL | MV_DOWN);
10819   }
10820
10821   return MV_NONE;
10822 }
10823
10824 static int getPoolFromOpenDirection(int direction)
10825 {
10826   switch (direction)
10827   {
10828     case (MV_DOWN | MV_RIGHT):          return EL_ACID_POOL_TOPLEFT;
10829     case (MV_DOWN | MV_LEFT):           return EL_ACID_POOL_TOPRIGHT;
10830     case (MV_UP | MV_RIGHT):            return EL_ACID_POOL_BOTTOMLEFT;
10831     case (MV_UP | MV_LEFT):             return EL_ACID_POOL_BOTTOMRIGHT;
10832     case (MV_HORIZONTAL | MV_UP):       return EL_ACID_POOL_BOTTOM;
10833     case (MV_HORIZONTAL | MV_DOWN):     return EL_ACID;
10834   }
10835
10836   return EL_EMPTY;
10837 }
10838
10839 static int getPoolFromOpenDirectionExt(int direction, int help_element)
10840 {
10841   int element = getPoolFromOpenDirection(direction);
10842   int help_direction = getOpenDirectionFromPool(help_element);
10843
10844   if (element == EL_EMPTY)
10845   {
10846     int help_direction_vertical = help_direction & MV_VERTICAL;
10847
10848     element = getPoolFromOpenDirection(direction | help_direction_vertical);
10849   }
10850
10851   if (element == EL_EMPTY)
10852   {
10853     int help_direction_horizontal = help_direction & MV_HORIZONTAL;
10854
10855     element = getPoolFromOpenDirection(direction | help_direction_horizontal);
10856   }
10857
10858   return element;
10859 }
10860
10861 static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
10862 {
10863   int element_new = getPoolFromOpenDirectionExt(direction, element_old);
10864
10865   return (element_new != EL_EMPTY ? element_new : element_old);
10866 }
10867
10868 static int getOpenDirectionFromPillar(int element)
10869 {
10870   switch (element)
10871   {
10872     case EL_EMC_WALL_1:                 return (MV_DOWN);
10873     case EL_EMC_WALL_2:                 return (MV_VERTICAL);
10874     case EL_EMC_WALL_3:                 return (MV_UP);
10875   }
10876
10877   return MV_NONE;
10878 }
10879
10880 static int getPillarFromOpenDirection(int direction)
10881 {
10882   switch (direction)
10883   {
10884     case (MV_DOWN):                     return EL_EMC_WALL_1;
10885     case (MV_VERTICAL):                 return EL_EMC_WALL_2;
10886     case (MV_UP):                       return EL_EMC_WALL_3;
10887   }
10888
10889   return EL_EMPTY;
10890 }
10891
10892 static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
10893 {
10894   int element_new = getPillarFromOpenDirection(direction);
10895
10896   return (element_new != EL_EMPTY ? element_new : element_old);
10897 }
10898
10899 static int getOpenDirectionFromSteel2(int element)
10900 {
10901   switch (element)
10902   {
10903     case EL_DC_STEELWALL_2_LEFT:        return (MV_RIGHT);
10904     case EL_DC_STEELWALL_2_RIGHT:       return (MV_LEFT);
10905     case EL_DC_STEELWALL_2_TOP:         return (MV_DOWN);
10906     case EL_DC_STEELWALL_2_BOTTOM:      return (MV_UP);
10907     case EL_DC_STEELWALL_2_HORIZONTAL:  return (MV_HORIZONTAL);
10908     case EL_DC_STEELWALL_2_VERTICAL:    return (MV_VERTICAL);
10909     case EL_DC_STEELWALL_2_MIDDLE:      return (MV_ANY_DIRECTION);
10910     case EL_DC_STEELWALL_2_SINGLE:      return (MV_NONE);
10911   }
10912
10913   return MV_NONE;
10914 }
10915
10916 static int getSteel2FromOpenDirection(int direction)
10917 {
10918   switch (direction)
10919   {
10920     case (MV_RIGHT):                    return EL_DC_STEELWALL_2_LEFT;
10921     case (MV_LEFT):                     return EL_DC_STEELWALL_2_RIGHT;
10922     case (MV_DOWN):                     return EL_DC_STEELWALL_2_TOP;
10923     case (MV_UP):                       return EL_DC_STEELWALL_2_BOTTOM;
10924     case (MV_HORIZONTAL):               return EL_DC_STEELWALL_2_HORIZONTAL;
10925     case (MV_VERTICAL):                 return EL_DC_STEELWALL_2_VERTICAL;
10926     case (MV_ANY_DIRECTION):            return EL_DC_STEELWALL_2_MIDDLE;
10927     case (MV_NONE):                     return EL_DC_STEELWALL_2_SINGLE;
10928   }
10929
10930   return EL_EMPTY;
10931 }
10932
10933 static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
10934 {
10935   int element_new = getSteel2FromOpenDirection(direction);
10936
10937   return (element_new != EL_EMPTY ? element_new : element_old);
10938 }
10939
10940 static int getOpenDirectionFromChip(int element)
10941 {
10942   switch (element)
10943   {
10944     case EL_SP_CHIP_SINGLE:             return (MV_NONE);
10945     case EL_SP_CHIP_LEFT:               return (MV_RIGHT);
10946     case EL_SP_CHIP_RIGHT:              return (MV_LEFT);
10947     case EL_SP_CHIP_TOP:                return (MV_DOWN);
10948     case EL_SP_CHIP_BOTTOM:             return (MV_UP);
10949   }
10950
10951   return MV_NONE;
10952 }
10953
10954 static int getChipFromOpenDirection(int direction)
10955 {
10956   switch (direction)
10957   {
10958     case (MV_NONE):                     return EL_SP_CHIP_SINGLE;
10959     case (MV_LEFT):                     return EL_SP_CHIP_RIGHT;
10960     case (MV_RIGHT):                    return EL_SP_CHIP_LEFT;
10961     case (MV_UP):                       return EL_SP_CHIP_BOTTOM;
10962     case (MV_DOWN):                     return EL_SP_CHIP_TOP;
10963   }
10964
10965   return EL_EMPTY;
10966 }
10967
10968 static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
10969 {
10970   int element_new = getChipFromOpenDirection(direction);
10971
10972   return (element_new != EL_EMPTY ? element_new : element_old);
10973 }
10974
10975 static int getClosedTube(int x, int y)
10976 {
10977   struct XY *xy = xy_directions;
10978   int element_old = IntelliDrawBuffer[x][y];
10979   int direction_old = getOpenDirectionFromTube(element_old);
10980   int direction_new = MV_NONE;
10981   int i;
10982
10983   for (i = 0; i < NUM_DIRECTIONS; i++)
10984   {
10985     int xx = x + xy[i].x;
10986     int yy = y + xy[i].y;
10987     int dir = MV_DIR_FROM_BIT(i);
10988     int dir_opposite = MV_DIR_OPPOSITE(dir);
10989
10990     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
10991         (direction_old & dir) &&
10992         (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
10993       direction_new |= dir;
10994   }
10995
10996   return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
10997 }
10998
10999 static int getClosedBelt(int x, int y)
11000 {
11001   struct XY *xy = xy_directions;
11002   int element_old = IntelliDrawBuffer[x][y];
11003   int nr = getBeltNrFromBeltElement(element_old);
11004   int direction_old = getOpenDirectionFromBelt(element_old);
11005   int direction_new = MV_NONE;
11006   int i;
11007
11008   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
11009   {
11010     int xx = x + xy[i].x;
11011     int yy = y + xy[i].y;
11012     int dir = MV_DIR_FROM_BIT(i);
11013     int dir_opposite = MV_DIR_OPPOSITE(dir);
11014
11015     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
11016         (direction_old & dir) &&
11017         (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11018       direction_new |= dir;
11019   }
11020
11021   return getBeltFromNrAndOpenDirection(nr, direction_new);
11022 }
11023
11024 static int getClosedPool(int x, int y)
11025 {
11026   struct XY *xy = xy_directions;
11027   int element_old = IntelliDrawBuffer[x][y];
11028   int direction_old = getOpenDirectionFromPool(element_old);
11029   int direction_new = MV_NONE;
11030   int i;
11031
11032   for (i = 0; i < NUM_DIRECTIONS; i++)
11033   {
11034     int xx = x + xy[i].x;
11035     int yy = y + xy[i].y;
11036     int dir = MV_DIR_FROM_BIT(i);
11037     int dir_opposite = MV_DIR_OPPOSITE(dir);
11038
11039     if (IN_LEV_FIELD(xx, yy) &&
11040         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
11041         (direction_old & dir) &&
11042         (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11043       direction_new |= dir;
11044   }
11045
11046   return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
11047 }
11048
11049 static int getClosedPillar(int x, int y)
11050 {
11051   struct XY *xy = xy_directions;
11052   int element_old = IntelliDrawBuffer[x][y];
11053   int direction_old = getOpenDirectionFromPillar(element_old);
11054   int direction_new = MV_NONE;
11055   int i;
11056
11057   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
11058   {
11059     int xx = x + xy[i].x;
11060     int yy = y + xy[i].y;
11061     int dir = MV_DIR_FROM_BIT(i);
11062     int dir_opposite = MV_DIR_OPPOSITE(dir);
11063
11064     if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
11065         (direction_old & dir) &&
11066         (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11067       direction_new |= dir;
11068   }
11069
11070   return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
11071 }
11072
11073 static int getClosedSteel2(int x, int y)
11074 {
11075   struct XY *xy = xy_directions;
11076   int element_old = IntelliDrawBuffer[x][y];
11077   int direction_old = getOpenDirectionFromSteel2(element_old);
11078   int direction_new = MV_NONE;
11079   int i;
11080
11081   for (i = 0; i < NUM_DIRECTIONS; i++)
11082   {
11083     int xx = x + xy[i].x;
11084     int yy = y + xy[i].y;
11085     int dir = MV_DIR_FROM_BIT(i);
11086     int dir_opposite = MV_DIR_OPPOSITE(dir);
11087
11088     if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
11089         (direction_old & dir) &&
11090         (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11091       direction_new |= dir;
11092   }
11093
11094   return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
11095 }
11096
11097 static int getClosedChip(int x, int y)
11098 {
11099   struct XY *xy = xy_directions;
11100   int element_old = IntelliDrawBuffer[x][y];
11101   int direction_old = getOpenDirectionFromChip(element_old);
11102   int direction_new = MV_NONE;
11103   int i;
11104
11105   for (i = 0; i < NUM_DIRECTIONS; i++)
11106   {
11107     int xx = x + xy[i].x;
11108     int yy = y + xy[i].y;
11109     int dir = MV_DIR_FROM_BIT(i);
11110     int dir_opposite = MV_DIR_OPPOSITE(dir);
11111
11112     if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
11113         (direction_old & dir) &&
11114         (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
11115       direction_new |= dir;
11116   }
11117
11118   return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
11119 }
11120
11121 static void SetElementSimpleExt(int x, int y, int dx, int dy, int element,
11122                                 boolean change_level)
11123 {
11124   int sx = x - level_xpos;
11125   int sy = y - level_ypos;
11126   int old_element = Tile[x][y];
11127   int new_element = element;
11128   unsigned int new_bitmask = (getDrawModeHiRes() ? (dx + 1) << (dy * 2) : 0x0f);
11129   boolean draw_masked = FALSE;
11130
11131   if (IS_MM_WALL_EDITOR(element))
11132   {
11133     element = map_mm_wall_element_editor(element) | new_bitmask;
11134
11135     if (IS_MM_WALL(old_element))
11136       element |= MM_WALL_BITS(old_element);
11137
11138     if (!change_level)
11139       draw_masked = TRUE;
11140   }
11141   else if (IS_MM_WALL(old_element) && element == EL_EMPTY)
11142   {
11143     int element_changed = old_element & ~new_bitmask;
11144
11145     if (MM_WALL_BITS(element_changed) != 0)
11146       element = element_changed;
11147   }
11148
11149   IntelliDrawBuffer[x][y] = element;
11150
11151   if (change_level)
11152     Tile[x][y] = element;
11153
11154   if (IN_ED_FIELD(sx, sy))
11155   {
11156     if (IS_MM_WALL(old_element) && new_element == EL_EMPTY)
11157       DrawSizedWallParts_MM(sx, sy, EL_EMPTY, ed_tilesize, FALSE, new_bitmask);
11158     else if (draw_masked)
11159       DrawEditorElementThruMask(sx, sy, element);
11160     else
11161       DrawEditorElement(sx, sy, element);
11162   }
11163 }
11164
11165 static void SetElementSimple(int x, int y, int element, boolean change_level)
11166 {
11167   SetElementSimpleExt(x, y, 0, 0, element, change_level);
11168 }
11169
11170 static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
11171                                            int x2, int y2, int *element2,
11172                                            int (*close_function)(int, int),
11173                                            boolean change_level)
11174 {
11175   // set neighbour elements to newly determined connections
11176   SetElementSimple(x1, y1, *element1, change_level);
11177   SetElementSimple(x2, y2, *element2, change_level);
11178
11179   // remove all open connections of neighbour elements
11180   *element1 = close_function(x1, y1);
11181   *element2 = close_function(x2, y2);
11182
11183   // set neighbour elements to new, minimized connections
11184   SetElementSimple(x1, y1, *element1, change_level);
11185   SetElementSimple(x2, y2, *element2, change_level);
11186 }
11187
11188 static void SetElementIntelliDraw(int x, int y, int dx, int dy, int new_element,
11189                                   boolean change_level, int button)
11190 {
11191   struct XY *xy = xy_directions;
11192   static int last_x = -1;
11193   static int last_y = -1;
11194
11195   if (new_element == EL_UNDEFINED)
11196   {
11197     last_x = -1;
11198     last_y = -1;
11199
11200     return;
11201   }
11202
11203   int old_element = IntelliDrawBuffer[x][y];
11204
11205   if (IS_TUBE(new_element))
11206   {
11207     int last_element_new = EL_UNDEFINED;
11208     int direction = MV_NONE;
11209     int i;
11210
11211     // if old element is of same kind, keep all existing directions
11212     if (IS_TUBE(old_element))
11213       direction |= getOpenDirectionFromTube(old_element);
11214
11215     for (i = 0; i < NUM_DIRECTIONS; i++)
11216     {
11217       int xx = x + xy[i].x;
11218       int yy = y + xy[i].y;
11219
11220       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11221           IS_TUBE(IntelliDrawBuffer[last_x][last_y]))
11222       {
11223         int dir = MV_DIR_FROM_BIT(i);
11224         int dir_opposite = MV_DIR_OPPOSITE(dir);
11225         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11226         int last_direction_old = getOpenDirectionFromTube(last_element_old);
11227         int last_direction_new = last_direction_old | dir_opposite;
11228
11229         last_element_new = getTubeFromOpenDirection(last_direction_new);
11230
11231         direction |= dir;
11232       }
11233     }
11234
11235     new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
11236
11237     if (last_element_new != EL_UNDEFINED)
11238       MergeAndCloseNeighbourElements(x, y, &new_element,
11239                                      last_x, last_y, &last_element_new,
11240                                      getClosedTube, change_level);
11241   }
11242   else if (IS_BELT(new_element))
11243   {
11244     int belt_nr = getBeltNrFromBeltElement(new_element);
11245     int last_element_new = EL_UNDEFINED;
11246     int direction = MV_NONE;
11247     int i;
11248
11249     // if old element is of same kind, keep all existing directions
11250     if (IS_BELT(old_element))
11251       direction |= getOpenDirectionFromBelt(old_element);
11252
11253     for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
11254     {
11255       int xx = x + xy[i].x;
11256       int yy = y + xy[i].y;
11257
11258       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11259           IS_BELT(IntelliDrawBuffer[last_x][last_y]))
11260       {
11261         int dir = MV_DIR_FROM_BIT(i);
11262         int dir_opposite = MV_DIR_OPPOSITE(dir);
11263         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11264         int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
11265         int last_direction_old = getOpenDirectionFromBelt(last_element_old);
11266         int last_direction_new = last_direction_old | dir_opposite;
11267
11268         last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
11269                                                          last_direction_new);
11270         direction |= dir;
11271       }
11272     }
11273
11274     new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
11275                                                         new_element);
11276     if (last_element_new != EL_UNDEFINED)
11277       MergeAndCloseNeighbourElements(x, y, &new_element,
11278                                      last_x, last_y, &last_element_new,
11279                                      getClosedBelt, change_level);
11280   }
11281   else if (IS_ACID_POOL_OR_ACID(new_element))
11282   {
11283     int last_element_new = EL_UNDEFINED;
11284     int direction = MV_NONE;
11285     int i;
11286
11287     // if old element is of same kind, keep all existing directions
11288     if (IS_ACID_POOL_OR_ACID(old_element))
11289       direction |= getOpenDirectionFromPool(old_element);
11290
11291     for (i = 0; i < NUM_DIRECTIONS; i++)
11292     {
11293       int xx = x + xy[i].x;
11294       int yy = y + xy[i].y;
11295
11296       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11297           IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
11298       {
11299         int dir = MV_DIR_FROM_BIT(i);
11300         int dir_opposite = MV_DIR_OPPOSITE(dir);
11301         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11302         int last_direction_old = getOpenDirectionFromPool(last_element_old);
11303         int last_direction_new = last_direction_old | dir_opposite;
11304
11305         last_element_new = getPoolFromOpenDirection(last_direction_new);
11306
11307         direction |= dir;
11308       }
11309     }
11310
11311     // special corrections needed for intuitively correct acid pool drawing
11312     if (last_element_new == EL_EMPTY)
11313       last_element_new = new_element;
11314     else if (last_element_new != EL_UNDEFINED)
11315       new_element = last_element_new;
11316
11317     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
11318
11319     if (last_element_new != EL_UNDEFINED)
11320       MergeAndCloseNeighbourElements(x, y, &new_element,
11321                                      last_x, last_y, &last_element_new,
11322                                      getClosedPool, change_level);
11323   }
11324   else if (IS_EMC_PILLAR(new_element))
11325   {
11326     int last_element_new = EL_UNDEFINED;
11327     int direction = MV_NONE;
11328     int i;
11329
11330     // if old element is of same kind, keep all existing directions
11331     if (IS_EMC_PILLAR(old_element))
11332       direction |= getOpenDirectionFromPillar(old_element);
11333
11334     for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
11335     {
11336       int xx = x + xy[i].x;
11337       int yy = y + xy[i].y;
11338
11339       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11340           IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
11341       {
11342         int dir = MV_DIR_FROM_BIT(i);
11343         int dir_opposite = MV_DIR_OPPOSITE(dir);
11344         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11345         int last_direction_old = getOpenDirectionFromPillar(last_element_old);
11346         int last_direction_new = last_direction_old | dir_opposite;
11347
11348         last_element_new = getPillarFromOpenDirection(last_direction_new);
11349
11350         direction |= dir;
11351       }
11352     }
11353
11354     new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
11355
11356     if (last_element_new != EL_UNDEFINED)
11357       MergeAndCloseNeighbourElements(x, y, &new_element,
11358                                      last_x, last_y, &last_element_new,
11359                                      getClosedPillar, change_level);
11360   }
11361   else if (IS_DC_STEELWALL_2(new_element))
11362   {
11363     int last_element_new = EL_UNDEFINED;
11364     int direction = MV_NONE;
11365     int i;
11366
11367     // if old element is of same kind, keep all existing directions
11368     if (IS_DC_STEELWALL_2(old_element))
11369       direction |= getOpenDirectionFromSteel2(old_element);
11370
11371     for (i = 0; i < NUM_DIRECTIONS; i++)
11372     {
11373       int xx = x + xy[i].x;
11374       int yy = y + xy[i].y;
11375
11376       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11377           IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
11378       {
11379         int dir = MV_DIR_FROM_BIT(i);
11380         int dir_opposite = MV_DIR_OPPOSITE(dir);
11381         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11382         int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
11383         int last_direction_new = last_direction_old | dir_opposite;
11384
11385         last_element_new = getSteel2FromOpenDirection(last_direction_new);
11386
11387         direction |= dir;
11388       }
11389     }
11390
11391     new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
11392
11393     if (last_element_new != EL_UNDEFINED)
11394       MergeAndCloseNeighbourElements(x, y, &new_element,
11395                                      last_x, last_y, &last_element_new,
11396                                      getClosedSteel2, change_level);
11397   }
11398   else if (IS_SP_CHIP(new_element))
11399   {
11400     int last_element_new = EL_UNDEFINED;
11401     int direction = MV_NONE;
11402     int i;
11403
11404     // (do not keep existing directions, regardless of kind of old element)
11405
11406     for (i = 0; i < NUM_DIRECTIONS; i++)
11407     {
11408       int xx = x + xy[i].x;
11409       int yy = y + xy[i].y;
11410
11411       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11412           IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
11413       {
11414         int dir = MV_DIR_FROM_BIT(i);
11415         int dir_opposite = MV_DIR_OPPOSITE(dir);
11416         int last_element_old = IntelliDrawBuffer[last_x][last_y];
11417         int last_direction_old = getOpenDirectionFromChip(last_element_old);
11418         int last_direction_new = last_direction_old | dir_opposite;
11419
11420         if (last_direction_old == MV_NONE)
11421         {
11422           last_element_new = getChipFromOpenDirection(last_direction_new);
11423           direction |= dir;
11424         }
11425         else if (last_direction_old & (dir | dir_opposite))
11426         {
11427           direction |= MV_DIR_OPPOSITE(last_direction_old);
11428         }
11429         else
11430         {
11431           direction |= MV_DIR_OPPOSITE(dir);
11432         }
11433       }
11434     }
11435
11436     new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
11437
11438     if (last_element_new != EL_UNDEFINED)
11439       MergeAndCloseNeighbourElements(x, y, &new_element,
11440                                      last_x, last_y, &last_element_new,
11441                                      getClosedChip, change_level);
11442   }
11443   else if (IS_SP_HARDWARE_BASE(new_element))
11444   {
11445     int nr = GetSimpleRandom(6);
11446
11447     new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
11448                    nr == 1 ? EL_SP_HARDWARE_BASE_2 :
11449                    nr == 2 ? EL_SP_HARDWARE_BASE_3 :
11450                    nr == 3 ? EL_SP_HARDWARE_BASE_4 :
11451                    nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
11452   }
11453   else if (new_element == EL_SP_HARDWARE_GREEN ||
11454            new_element == EL_SP_HARDWARE_BLUE ||
11455            new_element == EL_SP_HARDWARE_RED)
11456   {
11457     int nr = GetSimpleRandom(3);
11458
11459     new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
11460                    nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
11461   }
11462   else if (IS_GROUP_ELEMENT(new_element))
11463   {
11464     boolean connected_drawing = FALSE;
11465     int i;
11466
11467     for (i = 0; i < NUM_DIRECTIONS; i++)
11468     {
11469       int xx = x + xy[i].x;
11470       int yy = y + xy[i].y;
11471
11472       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
11473           IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
11474         connected_drawing = TRUE;
11475     }
11476
11477     if (!connected_drawing)
11478       ResolveGroupElement(new_element);
11479
11480     new_element = GetElementFromGroupElement(new_element);
11481   }
11482   else if (IS_BELT_SWITCH(old_element))
11483   {
11484     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
11485     int belt_dir = getBeltDirFromBeltSwitchElement(old_element);
11486
11487     belt_dir = (belt_dir == MV_LEFT ? MV_NONE :
11488                 belt_dir == MV_NONE ? MV_RIGHT : MV_LEFT);
11489
11490     new_element = getBeltSwitchElementFromBeltNrAndBeltDir(belt_nr, belt_dir);
11491   }
11492   else
11493   {
11494     static int swappable_elements[][2] =
11495     {
11496       { EL_EXIT_CLOSED,                 EL_EXIT_OPEN                    },
11497       { EL_DYNAMITE,                    EL_DYNAMITE_ACTIVE              },
11498       { EL_EM_DYNAMITE,                 EL_EM_DYNAMITE_ACTIVE           },
11499       { EL_QUICKSAND_EMPTY,             EL_QUICKSAND_FULL               },
11500       { EL_EMERALD,                     EL_WALL_EMERALD                 },
11501       { EL_EMERALD_YELLOW,              EL_WALL_EMERALD_YELLOW          },
11502       { EL_EMERALD_RED,                 EL_WALL_EMERALD_RED             },
11503       { EL_EMERALD_PURPLE,              EL_WALL_EMERALD_PURPLE          },
11504       { EL_DIAMOND,                     EL_WALL_DIAMOND                 },
11505       { EL_BD_DIAMOND,                  EL_WALL_BD_DIAMOND              },
11506       { EL_GATE_1,                      EL_GATE_1_GRAY                  },
11507       { EL_GATE_2,                      EL_GATE_2_GRAY                  },
11508       { EL_GATE_3,                      EL_GATE_3_GRAY                  },
11509       { EL_GATE_4,                      EL_GATE_4_GRAY                  },
11510       { EL_EM_GATE_1,                   EL_EM_GATE_1_GRAY               },
11511       { EL_EM_GATE_2,                   EL_EM_GATE_2_GRAY               },
11512       { EL_EM_GATE_3,                   EL_EM_GATE_3_GRAY               },
11513       { EL_EM_GATE_4,                   EL_EM_GATE_4_GRAY               },
11514       { EL_EMC_GATE_5,                  EL_EMC_GATE_5_GRAY              },
11515       { EL_EMC_GATE_6,                  EL_EMC_GATE_6_GRAY              },
11516       { EL_EMC_GATE_7,                  EL_EMC_GATE_7_GRAY              },
11517       { EL_EMC_GATE_8,                  EL_EMC_GATE_8_GRAY              },
11518       { EL_DC_GATE_WHITE,               EL_DC_GATE_WHITE_GRAY           },
11519       { EL_TIME_ORB_EMPTY,              EL_TIME_ORB_FULL                },
11520       { EL_LAMP,                        EL_LAMP_ACTIVE                  },
11521       { EL_SOKOBAN_FIELD_EMPTY,         EL_SOKOBAN_FIELD_FULL           },
11522       { EL_SP_BASE,                     EL_SP_BUGGY_BASE                },
11523       { EL_PEARL,                       EL_WALL_PEARL                   },
11524       { EL_CRYSTAL,                     EL_WALL_CRYSTAL                 },
11525       { EL_TIMEGATE_CLOSED,             EL_TIMEGATE_OPEN                },
11526       { EL_SWITCHGATE_CLOSED,           EL_SWITCHGATE_OPEN              },
11527       { EL_SWITCHGATE_SWITCH_UP,        EL_SWITCHGATE_SWITCH_DOWN       },
11528       { EL_DC_SWITCHGATE_SWITCH_UP,     EL_DC_SWITCHGATE_SWITCH_DOWN    },
11529       { EL_LIGHT_SWITCH,                EL_LIGHT_SWITCH_ACTIVE          },
11530       { EL_LANDMINE,                    EL_DC_LANDMINE                  },
11531       { EL_SHIELD_NORMAL,               EL_SHIELD_DEADLY                },
11532       { EL_STEEL_EXIT_CLOSED,           EL_STEEL_EXIT_OPEN              },
11533       { EL_EM_EXIT_CLOSED,              EL_EM_EXIT_OPEN                 },
11534       { EL_EM_STEEL_EXIT_CLOSED,        EL_EM_STEEL_EXIT_OPEN           },
11535       { EL_QUICKSAND_FAST_EMPTY,        EL_QUICKSAND_FAST_FULL          },
11536       { EL_MM_EXIT_CLOSED,              EL_MM_EXIT_OPEN                 },
11537       { EL_MM_FUSE,                     EL_MM_FUSE_ACTIVE               },
11538       { EL_MM_LIGHTBULB,                EL_MM_LIGHTBULB_ACTIVE          },
11539       { EL_MM_FUEL_EMPTY,               EL_MM_FUEL_FULL                 },
11540
11541       { -1,                             -1                              },
11542     };
11543     static int rotatable_elements_4[][4] =
11544     {
11545       {
11546         EL_BUG_UP,
11547         EL_BUG_RIGHT,
11548         EL_BUG_DOWN,
11549         EL_BUG_LEFT
11550       },
11551       {
11552         EL_SPACESHIP_UP,
11553         EL_SPACESHIP_RIGHT,
11554         EL_SPACESHIP_DOWN,
11555         EL_SPACESHIP_LEFT
11556       },
11557       {
11558         EL_BD_BUTTERFLY_UP,
11559         EL_BD_BUTTERFLY_RIGHT,
11560         EL_BD_BUTTERFLY_DOWN,
11561         EL_BD_BUTTERFLY_LEFT
11562       },
11563       {
11564         EL_BD_FIREFLY_UP,
11565         EL_BD_FIREFLY_RIGHT,
11566         EL_BD_FIREFLY_DOWN,
11567         EL_BD_FIREFLY_LEFT
11568       },
11569       {
11570         EL_PACMAN_UP,
11571         EL_PACMAN_RIGHT,
11572         EL_PACMAN_DOWN,
11573         EL_PACMAN_LEFT
11574       },
11575       {
11576         EL_YAMYAM_UP,
11577         EL_YAMYAM_RIGHT,
11578         EL_YAMYAM_DOWN,
11579         EL_YAMYAM_LEFT
11580       },
11581       {
11582         EL_ARROW_UP,
11583         EL_ARROW_RIGHT,
11584         EL_ARROW_DOWN,
11585         EL_ARROW_LEFT
11586       },
11587       {
11588         EL_SP_PORT_UP,
11589         EL_SP_PORT_RIGHT,
11590         EL_SP_PORT_DOWN,
11591         EL_SP_PORT_LEFT
11592       },
11593       {
11594         EL_SP_GRAVITY_PORT_UP,
11595         EL_SP_GRAVITY_PORT_RIGHT,
11596         EL_SP_GRAVITY_PORT_DOWN,
11597         EL_SP_GRAVITY_PORT_LEFT
11598       },
11599       {
11600         EL_SP_GRAVITY_ON_PORT_UP,
11601         EL_SP_GRAVITY_ON_PORT_RIGHT,
11602         EL_SP_GRAVITY_ON_PORT_DOWN,
11603         EL_SP_GRAVITY_ON_PORT_LEFT
11604       },
11605       {
11606         EL_SP_GRAVITY_OFF_PORT_UP,
11607         EL_SP_GRAVITY_OFF_PORT_RIGHT,
11608         EL_SP_GRAVITY_OFF_PORT_DOWN,
11609         EL_SP_GRAVITY_OFF_PORT_LEFT
11610       },
11611       {
11612         EL_MOLE_UP,
11613         EL_MOLE_RIGHT,
11614         EL_MOLE_DOWN,
11615         EL_MOLE_LEFT
11616       },
11617       {
11618         EL_BALLOON_SWITCH_UP,
11619         EL_BALLOON_SWITCH_RIGHT,
11620         EL_BALLOON_SWITCH_DOWN,
11621         EL_BALLOON_SWITCH_LEFT
11622       },
11623       {
11624         EL_MM_MCDUFFIN_UP,
11625         EL_MM_MCDUFFIN_RIGHT,
11626         EL_MM_MCDUFFIN_DOWN,
11627         EL_MM_MCDUFFIN_LEFT
11628       },
11629       {
11630         EL_MM_MIRROR_FIXED_1,
11631         EL_MM_MIRROR_FIXED_4,
11632         EL_MM_MIRROR_FIXED_3,
11633         EL_MM_MIRROR_FIXED_2
11634       },
11635       {
11636         EL_MM_STEEL_GRID_FIXED_1,
11637         EL_MM_STEEL_GRID_FIXED_4,
11638         EL_MM_STEEL_GRID_FIXED_2,
11639         EL_MM_STEEL_GRID_FIXED_3
11640       },
11641       {
11642         EL_MM_WOODEN_GRID_FIXED_1,
11643         EL_MM_WOODEN_GRID_FIXED_4,
11644         EL_MM_WOODEN_GRID_FIXED_2,
11645         EL_MM_WOODEN_GRID_FIXED_3
11646       },
11647       {
11648         EL_MM_POLARIZER_CROSS_1,
11649         EL_MM_POLARIZER_CROSS_4,
11650         EL_MM_POLARIZER_CROSS_3,
11651         EL_MM_POLARIZER_CROSS_2
11652       },
11653       {
11654         EL_MM_PACMAN_UP,
11655         EL_MM_PACMAN_RIGHT,
11656         EL_MM_PACMAN_DOWN,
11657         EL_MM_PACMAN_LEFT
11658       },
11659       {
11660         EL_DF_LASER_UP,
11661         EL_DF_LASER_RIGHT,
11662         EL_DF_LASER_DOWN,
11663         EL_DF_LASER_LEFT
11664       },
11665       {
11666         EL_DF_RECEIVER_UP,
11667         EL_DF_RECEIVER_RIGHT,
11668         EL_DF_RECEIVER_DOWN,
11669         EL_DF_RECEIVER_LEFT
11670       },
11671
11672       {
11673         -1,
11674       },
11675     };
11676     static int rotatable_elements_8[][8] =
11677     {
11678       {
11679         EL_DF_STEEL_GRID_FIXED_1,
11680         EL_DF_STEEL_GRID_FIXED_8,
11681         EL_DF_STEEL_GRID_FIXED_7,
11682         EL_DF_STEEL_GRID_FIXED_6,
11683         EL_DF_STEEL_GRID_FIXED_5,
11684         EL_DF_STEEL_GRID_FIXED_4,
11685         EL_DF_STEEL_GRID_FIXED_3,
11686         EL_DF_STEEL_GRID_FIXED_2
11687       },
11688       {
11689         EL_DF_WOODEN_GRID_FIXED_1,
11690         EL_DF_WOODEN_GRID_FIXED_8,
11691         EL_DF_WOODEN_GRID_FIXED_7,
11692         EL_DF_WOODEN_GRID_FIXED_6,
11693         EL_DF_WOODEN_GRID_FIXED_5,
11694         EL_DF_WOODEN_GRID_FIXED_4,
11695         EL_DF_WOODEN_GRID_FIXED_3,
11696         EL_DF_WOODEN_GRID_FIXED_2
11697       },
11698       {
11699         EL_DF_STEEL_GRID_ROTATING_1,
11700         EL_DF_STEEL_GRID_ROTATING_8,
11701         EL_DF_STEEL_GRID_ROTATING_7,
11702         EL_DF_STEEL_GRID_ROTATING_6,
11703         EL_DF_STEEL_GRID_ROTATING_5,
11704         EL_DF_STEEL_GRID_ROTATING_4,
11705         EL_DF_STEEL_GRID_ROTATING_3,
11706         EL_DF_STEEL_GRID_ROTATING_2
11707       },
11708       {
11709         EL_DF_WOODEN_GRID_ROTATING_1,
11710         EL_DF_WOODEN_GRID_ROTATING_8,
11711         EL_DF_WOODEN_GRID_ROTATING_7,
11712         EL_DF_WOODEN_GRID_ROTATING_6,
11713         EL_DF_WOODEN_GRID_ROTATING_5,
11714         EL_DF_WOODEN_GRID_ROTATING_4,
11715         EL_DF_WOODEN_GRID_ROTATING_3,
11716         EL_DF_WOODEN_GRID_ROTATING_2
11717       },
11718
11719       {
11720         -1,
11721       },
11722     };
11723     static int rotatable_elements_16[][16] =
11724     {
11725       {
11726         EL_MM_MIRROR_1,
11727         EL_MM_MIRROR_16,
11728         EL_MM_MIRROR_15,
11729         EL_MM_MIRROR_14,
11730         EL_MM_MIRROR_13,
11731         EL_MM_MIRROR_12,
11732         EL_MM_MIRROR_11,
11733         EL_MM_MIRROR_10,
11734         EL_MM_MIRROR_9,
11735         EL_MM_MIRROR_8,
11736         EL_MM_MIRROR_7,
11737         EL_MM_MIRROR_6,
11738         EL_MM_MIRROR_5,
11739         EL_MM_MIRROR_4,
11740         EL_MM_MIRROR_3,
11741         EL_MM_MIRROR_2
11742       },
11743       {
11744         EL_MM_TELEPORTER_5,
11745         EL_MM_TELEPORTER_4,
11746         EL_MM_TELEPORTER_3,
11747         EL_MM_TELEPORTER_2,
11748         EL_MM_TELEPORTER_1,
11749         EL_MM_TELEPORTER_16,
11750         EL_MM_TELEPORTER_15,
11751         EL_MM_TELEPORTER_14,
11752         EL_MM_TELEPORTER_13,
11753         EL_MM_TELEPORTER_12,
11754         EL_MM_TELEPORTER_11,
11755         EL_MM_TELEPORTER_10,
11756         EL_MM_TELEPORTER_9,
11757         EL_MM_TELEPORTER_8,
11758         EL_MM_TELEPORTER_7,
11759         EL_MM_TELEPORTER_6
11760       },
11761       {
11762         EL_MM_TELEPORTER_RED_5,
11763         EL_MM_TELEPORTER_RED_4,
11764         EL_MM_TELEPORTER_RED_3,
11765         EL_MM_TELEPORTER_RED_2,
11766         EL_MM_TELEPORTER_RED_1,
11767         EL_MM_TELEPORTER_RED_16,
11768         EL_MM_TELEPORTER_RED_15,
11769         EL_MM_TELEPORTER_RED_14,
11770         EL_MM_TELEPORTER_RED_13,
11771         EL_MM_TELEPORTER_RED_12,
11772         EL_MM_TELEPORTER_RED_11,
11773         EL_MM_TELEPORTER_RED_10,
11774         EL_MM_TELEPORTER_RED_9,
11775         EL_MM_TELEPORTER_RED_8,
11776         EL_MM_TELEPORTER_RED_7,
11777         EL_MM_TELEPORTER_RED_6
11778       },
11779       {
11780         EL_MM_TELEPORTER_YELLOW_5,
11781         EL_MM_TELEPORTER_YELLOW_4,
11782         EL_MM_TELEPORTER_YELLOW_3,
11783         EL_MM_TELEPORTER_YELLOW_2,
11784         EL_MM_TELEPORTER_YELLOW_1,
11785         EL_MM_TELEPORTER_YELLOW_16,
11786         EL_MM_TELEPORTER_YELLOW_15,
11787         EL_MM_TELEPORTER_YELLOW_14,
11788         EL_MM_TELEPORTER_YELLOW_13,
11789         EL_MM_TELEPORTER_YELLOW_12,
11790         EL_MM_TELEPORTER_YELLOW_11,
11791         EL_MM_TELEPORTER_YELLOW_10,
11792         EL_MM_TELEPORTER_YELLOW_9,
11793         EL_MM_TELEPORTER_YELLOW_8,
11794         EL_MM_TELEPORTER_YELLOW_7,
11795         EL_MM_TELEPORTER_YELLOW_6
11796       },
11797       {
11798         EL_MM_TELEPORTER_GREEN_5,
11799         EL_MM_TELEPORTER_GREEN_4,
11800         EL_MM_TELEPORTER_GREEN_3,
11801         EL_MM_TELEPORTER_GREEN_2,
11802         EL_MM_TELEPORTER_GREEN_1,
11803         EL_MM_TELEPORTER_GREEN_16,
11804         EL_MM_TELEPORTER_GREEN_15,
11805         EL_MM_TELEPORTER_GREEN_14,
11806         EL_MM_TELEPORTER_GREEN_13,
11807         EL_MM_TELEPORTER_GREEN_12,
11808         EL_MM_TELEPORTER_GREEN_11,
11809         EL_MM_TELEPORTER_GREEN_10,
11810         EL_MM_TELEPORTER_GREEN_9,
11811         EL_MM_TELEPORTER_GREEN_8,
11812         EL_MM_TELEPORTER_GREEN_7,
11813         EL_MM_TELEPORTER_GREEN_6
11814       },
11815       {
11816         EL_MM_TELEPORTER_BLUE_5,
11817         EL_MM_TELEPORTER_BLUE_4,
11818         EL_MM_TELEPORTER_BLUE_3,
11819         EL_MM_TELEPORTER_BLUE_2,
11820         EL_MM_TELEPORTER_BLUE_1,
11821         EL_MM_TELEPORTER_BLUE_16,
11822         EL_MM_TELEPORTER_BLUE_15,
11823         EL_MM_TELEPORTER_BLUE_14,
11824         EL_MM_TELEPORTER_BLUE_13,
11825         EL_MM_TELEPORTER_BLUE_12,
11826         EL_MM_TELEPORTER_BLUE_11,
11827         EL_MM_TELEPORTER_BLUE_10,
11828         EL_MM_TELEPORTER_BLUE_9,
11829         EL_MM_TELEPORTER_BLUE_8,
11830         EL_MM_TELEPORTER_BLUE_7,
11831         EL_MM_TELEPORTER_BLUE_6
11832       },
11833       {
11834         EL_MM_POLARIZER_1,
11835         EL_MM_POLARIZER_16,
11836         EL_MM_POLARIZER_15,
11837         EL_MM_POLARIZER_14,
11838         EL_MM_POLARIZER_13,
11839         EL_MM_POLARIZER_12,
11840         EL_MM_POLARIZER_11,
11841         EL_MM_POLARIZER_10,
11842         EL_MM_POLARIZER_9,
11843         EL_MM_POLARIZER_8,
11844         EL_MM_POLARIZER_7,
11845         EL_MM_POLARIZER_6,
11846         EL_MM_POLARIZER_5,
11847         EL_MM_POLARIZER_4,
11848         EL_MM_POLARIZER_3,
11849         EL_MM_POLARIZER_2
11850       },
11851       {
11852         EL_DF_MIRROR_1,
11853         EL_DF_MIRROR_16,
11854         EL_DF_MIRROR_15,
11855         EL_DF_MIRROR_14,
11856         EL_DF_MIRROR_13,
11857         EL_DF_MIRROR_12,
11858         EL_DF_MIRROR_11,
11859         EL_DF_MIRROR_10,
11860         EL_DF_MIRROR_9,
11861         EL_DF_MIRROR_8,
11862         EL_DF_MIRROR_7,
11863         EL_DF_MIRROR_6,
11864         EL_DF_MIRROR_5,
11865         EL_DF_MIRROR_4,
11866         EL_DF_MIRROR_3,
11867         EL_DF_MIRROR_2
11868       },
11869       {
11870         EL_DF_MIRROR_ROTATING_1,
11871         EL_DF_MIRROR_ROTATING_16,
11872         EL_DF_MIRROR_ROTATING_15,
11873         EL_DF_MIRROR_ROTATING_14,
11874         EL_DF_MIRROR_ROTATING_13,
11875         EL_DF_MIRROR_ROTATING_12,
11876         EL_DF_MIRROR_ROTATING_11,
11877         EL_DF_MIRROR_ROTATING_10,
11878         EL_DF_MIRROR_ROTATING_9,
11879         EL_DF_MIRROR_ROTATING_8,
11880         EL_DF_MIRROR_ROTATING_7,
11881         EL_DF_MIRROR_ROTATING_6,
11882         EL_DF_MIRROR_ROTATING_5,
11883         EL_DF_MIRROR_ROTATING_4,
11884         EL_DF_MIRROR_ROTATING_3,
11885         EL_DF_MIRROR_ROTATING_2
11886       },
11887
11888       {
11889         -1,
11890       },
11891     };
11892     int i, j;
11893
11894     for (i = 0; swappable_elements[i][0] != -1; i++)
11895     {
11896       int element1 = swappable_elements[i][0];
11897       int element2 = swappable_elements[i][1];
11898
11899       if (old_element == element1 || old_element == element2)
11900         new_element = (old_element == element1 ? element2 : element1);
11901     }
11902
11903     for (i = 0; rotatable_elements_4[i][0] != -1; i++)
11904     {
11905       for (j = 0; j < 4; j++)
11906       {
11907         int element = rotatable_elements_4[i][j];
11908
11909         if (old_element == element)
11910           new_element = (button == 1 ? rotatable_elements_4[i][(j + 3) % 4] :
11911                          button == 2 ? rotatable_elements_4[i][0]           :
11912                          button == 3 ? rotatable_elements_4[i][(j + 1) % 4] :
11913                          old_element);
11914       }
11915     }
11916
11917     for (i = 0; rotatable_elements_8[i][0] != -1; i++)
11918     {
11919       for (j = 0; j < 8; j++)
11920       {
11921         int element = rotatable_elements_8[i][j];
11922
11923         if (old_element == element)
11924           new_element = (button == 1 ? rotatable_elements_8[i][(j + 7) % 8] :
11925                          button == 2 ? rotatable_elements_8[i][0]           :
11926                          button == 3 ? rotatable_elements_8[i][(j + 1) % 8] :
11927                          old_element);
11928       }
11929     }
11930
11931     for (i = 0; rotatable_elements_16[i][0] != -1; i++)
11932     {
11933       for (j = 0; j < 16; j++)
11934       {
11935         int element = rotatable_elements_16[i][j];
11936
11937         if (old_element == element)
11938           new_element = (button == 1 ? rotatable_elements_16[i][(j + 15) % 16] :
11939                          button == 2 ? rotatable_elements_16[i][0]             :
11940                          button == 3 ? rotatable_elements_16[i][(j + 1)  % 16] :
11941                          old_element);
11942       }
11943     }
11944
11945     if (old_element != new_element)
11946     {
11947       int max_infotext_len = getMaxInfoTextLength();
11948       char infotext[MAX_OUTPUT_LINESIZE + 1];
11949
11950       strncpy(infotext, getElementInfoText(new_element), max_infotext_len);
11951       infotext[max_infotext_len] = '\0';
11952
11953       ClearEditorGadgetInfoText();
11954
11955       DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT,
11956                 infotext);
11957     }
11958   }
11959
11960   if (IS_MM_WALL_EDITOR(new_element))
11961     SetElementSimpleExt(x, y, dx, dy, new_element, change_level);
11962   else
11963     SetElementSimple(x, y, new_element, change_level);
11964
11965   last_x = x;
11966   last_y = y;
11967 }
11968
11969 static void ResetIntelliDraw(void)
11970 {
11971   int x, y;
11972
11973   for (x = 0; x < lev_fieldx; x++)
11974     for (y = 0; y < lev_fieldy; y++)
11975       IntelliDrawBuffer[x][y] = Tile[x][y];
11976
11977   SetElementIntelliDraw(-1, -1, -1, -1, EL_UNDEFINED, FALSE, -1);
11978 }
11979
11980 static boolean draw_mode_hires = FALSE;
11981
11982 static boolean isHiresTileElement(int element)
11983 {
11984   return (IS_MM_WALL(element)        || element == EL_EMPTY);
11985 }
11986
11987 static boolean isHiresDrawElement(int element)
11988 {
11989   return (IS_MM_WALL_EDITOR(element) || element == EL_EMPTY);
11990 }
11991
11992 static int numHiresTiles(int element)
11993 {
11994   if (!IS_MM_WALL(element))
11995     return 1;
11996
11997   int bits = MM_WALL_BITS(element);
11998   int num_bits = 0;
11999
12000   while (bits)
12001   {
12002     bits &= bits - 1;
12003     num_bits++;
12004   }
12005
12006   return num_bits;
12007 }
12008
12009 static void SetDrawModeHiRes(int element)
12010 {
12011   draw_mode_hires =
12012     (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
12013      isHiresDrawElement(element));
12014 }
12015
12016 static boolean getDrawModeHiRes(void)
12017 {
12018   return draw_mode_hires;
12019 }
12020
12021 static int getLoResScreenPos(int pos)
12022 {
12023   return (getDrawModeHiRes() ? pos / 2 : pos);
12024 }
12025
12026 static int getLoResScreenMod(int pos)
12027 {
12028   return (getDrawModeHiRes() ? pos % 2 : 0);
12029 }
12030
12031 static void SetElementExt(int x, int y, int dx, int dy, int element,
12032                           boolean change_level, int button)
12033 {
12034   if (element < 0)
12035     SetElementSimple(x, y, Tile[x][y], change_level);
12036   else if (GetKeyModState() & KMOD_Shift)
12037     SetElementIntelliDraw(x, y, dx, dy, element, change_level, button);
12038   else
12039     SetElementSimpleExt(x, y, dx, dy, element, change_level);
12040 }
12041
12042 static void SetElement(int x, int y, int element)
12043 {
12044   SetElementExt(x, y, 0, 0, element, TRUE, -1);
12045 }
12046
12047 static void SetElementButton(int x, int y, int dx, int dy, int element,
12048                              int button)
12049 {
12050   SetElementExt(x, y, dx, dy, element, TRUE, button);
12051 }
12052
12053 static void SetElementHiRes(int sx2, int sy2, int element, boolean change_level)
12054 {
12055   int lx = getLoResScreenPos(sx2) + level_xpos;
12056   int ly = getLoResScreenPos(sy2) + level_ypos;
12057   int dx = getLoResScreenMod(sx2);
12058   int dy = getLoResScreenMod(sy2);
12059
12060   SetElementExt(lx, ly, dx, dy, element, change_level, -1);
12061 }
12062
12063 static void SetLevelElementHiRes(int lx2, int ly2, int element)
12064 {
12065   int lx = lx2 / 2;
12066   int ly = ly2 / 2;
12067   int dx = lx2 % 2;
12068   int dy = ly2 % 2;
12069
12070   SetElementExt(lx, ly, dx, dy, element, TRUE, -1);
12071 }
12072
12073 static int getLevelElementHiRes(int lx2, int ly2)
12074 {
12075   int lx = lx2 / 2;
12076   int ly = ly2 / 2;
12077   int dx = lx2 % 2;
12078   int dy = ly2 % 2;
12079   int element = Tile[lx][ly];
12080   unsigned int bitmask = (dx + 1) << (dy * 2);
12081
12082   if (IS_MM_WALL(element))
12083   {
12084     if (element & bitmask)
12085       return map_mm_wall_element(element);
12086     else
12087       return EL_EMPTY;
12088   }
12089
12090   return element;
12091 }
12092
12093 static void DrawLineElement(int x, int y, int element, boolean change_level)
12094 {
12095   SetElementHiRes(x, y, element, change_level);
12096 }
12097
12098 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
12099                      int element, boolean change_level)
12100 {
12101   int xsize = ABS(to_x - from_x);
12102   int ysize = ABS(to_y - from_y);
12103   int dx = (to_x < from_x ? -1 : +1);
12104   int dy = (to_y < from_y ? -1 : +1);
12105   int i;
12106
12107   if (from_y == to_y)                   // horizontal line
12108   {
12109     for (i = 0; i <= xsize; i++)
12110       DrawLineElement(from_x + i * dx, from_y, element, change_level);
12111   }
12112   else if (from_x == to_x)              // vertical line
12113   {
12114     for (i = 0; i <= ysize; i++)
12115       DrawLineElement(from_x, from_y + i * dy, element, change_level);
12116   }
12117   else                                  // diagonal line
12118   {
12119     if (ysize < xsize)                  // a < 1
12120     {
12121       float a = (float)ysize / (float)xsize;
12122
12123       for (i = 0; i <= xsize; i++)
12124       {
12125         int x = dx * i;
12126         int y = dy * (int)(a * i + 0.5);
12127
12128         DrawLineElement(from_x + x, from_y + y, element, change_level);
12129       }
12130     }
12131     else                                // a >= 1
12132     {
12133       float a = (float)xsize / (float)ysize;
12134
12135       for (i = 0; i <= ysize; i++)
12136       {
12137         int x = dx * (int)(a * i + 0.5);
12138         int y = dy * i;
12139
12140         DrawLineElement(from_x + x, from_y + y, element, change_level);
12141       }
12142     }
12143   }
12144 }
12145
12146 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
12147                     int element, boolean change_level)
12148 {
12149   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
12150   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
12151   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
12152   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
12153 }
12154
12155 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
12156                           int element, boolean change_level)
12157 {
12158   int y;
12159
12160   if (from_y > to_y)
12161     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
12162
12163   for (y = from_y; y <= to_y; y++)
12164     DrawLine(from_x, y, to_x, y, element, change_level);
12165 }
12166
12167 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
12168                        int element, boolean change_level)
12169 {
12170   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
12171   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
12172   int len_x = ABS(to_x - from_x);
12173   int len_y = ABS(to_y - from_y);
12174   int radius, x, y;
12175
12176   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
12177
12178   // not optimal (some points get drawn twice) but simple,
12179   // and fast enough for the few points we are drawing
12180
12181   for (x = 0; x <= radius; x++)
12182   {
12183     int sx, sy, sx2, sy2, lx, ly;
12184
12185     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
12186
12187     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
12188     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
12189     sx = getLoResScreenPos(sx2);
12190     sy = getLoResScreenPos(sy2);
12191     lx = sx + level_xpos;
12192     ly = sy + level_ypos;
12193
12194     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
12195       DrawLineElement(sx2, sy2, element, change_level);
12196   }
12197
12198   for (y = 0; y <= radius; y++)
12199   {
12200     int sx, sy, sx2, sy2, lx, ly;
12201
12202     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
12203
12204     sx2 = from_x + x * (from_x < to_x2 ? +1 : -1);
12205     sy2 = from_y + y * (from_y < to_y2 ? +1 : -1);
12206     sx = getLoResScreenPos(sx2);
12207     sy = getLoResScreenPos(sy2);
12208     lx = sx + level_xpos;
12209     ly = sy + level_ypos;
12210
12211     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
12212       DrawLineElement(sx2, sy2, element, change_level);
12213   }
12214 }
12215
12216 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
12217                     int element, boolean change_level)
12218 {
12219   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
12220   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
12221
12222   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
12223 }
12224
12225 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
12226
12227 #if DRAW_CIRCLES_BUTTON_AVAILABLE
12228 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
12229                        int element, boolean change_level)
12230 {
12231   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
12232   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
12233   int mirror_to_x2 = from_x - (to_x2 - from_x);
12234   int mirror_to_y2 = from_y - (to_y2 - from_y);
12235
12236   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
12237   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
12238   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
12239   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element,change_level);
12240 }
12241 #endif
12242
12243 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
12244 {
12245   int from_sx, from_sy;
12246   int to_sx, to_sy;
12247
12248   if (from_x > to_x)
12249     swap_numbers(&from_x, &to_x);
12250
12251   if (from_y > to_y)
12252     swap_numbers(&from_y, &to_y);
12253
12254   from_sx = SX + from_x * ed_tilesize;
12255   from_sy = SY + from_y * ed_tilesize;
12256   to_sx = SX + (to_x + 1) * ed_tilesize - 1;
12257   to_sy = SY + (to_y + 1) * ed_tilesize - 1;
12258
12259   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
12260   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
12261   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
12262   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
12263
12264   if (from_x == to_x && from_y == to_y)
12265     MarkTileDirty(from_x/2, from_y/2);
12266   else
12267     redraw_mask |= REDRAW_FIELD;
12268 }
12269
12270 static void DrawAreaBox(int from_x, int from_y, int to_x, int to_y,
12271                         int element, boolean change_level)
12272 {
12273   DrawBox(from_x, from_y, to_x, to_y, element, change_level);
12274 }
12275
12276 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
12277                        int element, boolean change_level)
12278 {
12279   if (element == -1 || change_level)
12280     DrawAreaBox(from_x, from_y, to_x, to_y, -1, FALSE);
12281   else
12282     DrawAreaBorder(from_x, from_y, to_x, to_y);
12283 }
12284
12285 // values for CopyBrushExt()
12286 #define CB_AREA_TO_BRUSH                0
12287 #define CB_BRUSH_TO_CURSOR              1
12288 #define CB_BRUSH_TO_LEVEL               2
12289 #define CB_DELETE_OLD_CURSOR            3
12290 #define CB_DUMP_BRUSH                   4
12291 #define CB_DUMP_BRUSH_SMALL             5
12292 #define CB_CLIPBOARD_TO_BRUSH           6
12293 #define CB_BRUSH_TO_CLIPBOARD           7
12294 #define CB_BRUSH_TO_CLIPBOARD_SMALL     8
12295 #define CB_UPDATE_BRUSH_POSITION        9
12296
12297 #define MAX_CB_PART_SIZE        10
12298 #define MAX_CB_LINE_SIZE        (MAX_LEV_FIELDX + 1)    // text plus newline
12299 #define MAX_CB_NUM_LINES        (MAX_LEV_FIELDY)
12300 #define MAX_CB_TEXT_SIZE        (MAX_CB_LINE_SIZE *     \
12301                                  MAX_CB_NUM_LINES *     \
12302                                  MAX_CB_PART_SIZE)
12303
12304 static void DrawBrushElement(int sx, int sy, int element, boolean change_level)
12305 {
12306   DrawLineElement(sx, sy, element, change_level);
12307 }
12308
12309 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
12310                          int button, int mode)
12311 {
12312   static short brush_buffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
12313   static int brush_width, brush_height;
12314   static int last_cursor_x = -1, last_cursor_y = -1;
12315   static boolean delete_old_brush = FALSE;
12316   int new_element = BUTTON_ELEMENT(button);
12317   int x, y;
12318
12319   if (mode == CB_DUMP_BRUSH ||
12320       mode == CB_DUMP_BRUSH_SMALL ||
12321       mode == CB_BRUSH_TO_CLIPBOARD ||
12322       mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
12323   {
12324     if (edit_mode != ED_MODE_DRAWING)
12325       return;
12326
12327     char part[MAX_CB_PART_SIZE + 1] = "";
12328     char text[MAX_CB_TEXT_SIZE + 1] = "";
12329     int width  = (draw_with_brush ? brush_width  : lev_fieldx);
12330     int height = (draw_with_brush ? brush_height : lev_fieldy);
12331     char *format = "%s%03d";
12332
12333     for (y = 0; y < height; y++)
12334       for (x = 0; x < width; x++)
12335         if ((draw_with_brush ? brush_buffer[x][y] : Tile[x][y]) > 999)
12336           format = "%s%04d";
12337
12338     for (y = 0; y < height; y++)
12339     {
12340       for (x = 0; x < width; x++)
12341       {
12342         int element = (draw_with_brush ? brush_buffer[x][y] : Tile[x][y]);
12343         char *prefix = (mode == CB_DUMP_BRUSH ||
12344                         mode == CB_BRUSH_TO_CLIPBOARD ? "`" : "¸");
12345
12346         if (element >= NUM_FILE_ELEMENTS)
12347           element = EL_UNKNOWN;
12348
12349         // copy brush to level sketch text buffer for the R'n'D forum:
12350         // - large tiles: `xxx or `xxxx (0x60 ASCII)
12351         // - small tiles: ¸xxx or ¸xxxx (0xb8 ISO-8859-1, 0xc2b8 UTF-8)
12352         snprintf(part, MAX_CB_PART_SIZE + 1, format, prefix, element);
12353         strcat(text, part);
12354       }
12355
12356       strcat(text, "\n");
12357     }
12358
12359     if (mode == CB_BRUSH_TO_CLIPBOARD ||
12360         mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
12361       SDL_SetClipboardText(text);
12362     else
12363       Print("%s", text);        // print brush data to console and log file
12364
12365     return;
12366   }
12367
12368   if (mode == CB_CLIPBOARD_TO_BRUSH)
12369   {
12370     if (edit_mode != ED_MODE_DRAWING)
12371       return;
12372
12373     if (!SDL_HasClipboardText())
12374     {
12375       Request("Clipboard is empty!", REQ_CONFIRM);
12376
12377       return;
12378     }
12379
12380     boolean copy_to_brush = (draw_with_brush ||
12381                              drawing_function == GADGET_ID_GRAB_BRUSH);
12382
12383     // this will delete the old brush, if already drawing with a brush
12384     if (copy_to_brush)
12385       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], MB_LEFTBUTTON);
12386
12387     // initialization is required for "odd" (incomplete) clipboard content
12388     for (x = 0; x < MAX_LEV_FIELDX; x++)
12389       for (y = 0; y < MAX_LEV_FIELDY; y++)
12390         brush_buffer[x][y] = EL_EMPTY;
12391
12392     brush_width  = 0;
12393     brush_height = 0;
12394     x = 0;
12395     y = 0;
12396
12397     char *clipboard_text = SDL_GetClipboardText();
12398     char *ptr = clipboard_text;
12399     boolean allow_new_row = FALSE;
12400     boolean stop = FALSE;
12401
12402     while (*ptr && !stop)
12403     {
12404       boolean prefix_found = FALSE;
12405       boolean start_new_row = FALSE;
12406
12407       // level sketch element number prefixes (may be multi-byte characters)
12408       char *prefix_list[] = { "`", "¸" };
12409       int i;
12410
12411       for (i = 0; i < ARRAY_SIZE(prefix_list); i++)
12412       {
12413         char *prefix = prefix_list[i];
12414
12415         // check if string is large enough for prefix
12416         if (strlen(ptr) < strlen(prefix))
12417         {
12418           stop = TRUE;
12419
12420           break;
12421         }
12422
12423         // check if string starts with prefix
12424         if (strPrefix(ptr, prefix))
12425         {
12426           ptr += strlen(prefix);
12427
12428           prefix_found = TRUE;
12429
12430           break;
12431         }
12432       }
12433
12434       // check if prefix found and followed by (at least) three digits
12435       if (prefix_found &&
12436           strlen(ptr) >= 3 &&
12437           ptr[0] >= '0' && ptr[0] <= '9' &&
12438           ptr[1] >= '0' && ptr[1] <= '9' &&
12439           ptr[2] >= '0' && ptr[2] <= '9')
12440       {
12441         int element = ((ptr[0] - '0') * 100 +
12442                        (ptr[1] - '0') * 10 +
12443                        (ptr[2] - '0'));
12444
12445         ptr += 3;
12446
12447         // level sketch element number might consist of four digits
12448         if (ptr[0] >= '0' && ptr[0] <= '9')
12449         {
12450           element = element * 10 + (ptr[0] - '0');
12451           ptr++;
12452         }
12453
12454         // remap some (historic, now obsolete) elements
12455         element = getMappedElement(element);
12456
12457         if (element >= NUM_FILE_ELEMENTS)
12458           element = EL_UNKNOWN;
12459
12460         brush_buffer[x][y] = element;
12461
12462         brush_width  = MAX(x + 1, brush_width);
12463         brush_height = MAX(y + 1, brush_height);
12464
12465         x++;
12466
12467         if (x >= MAX_LEV_FIELDX)
12468           start_new_row = TRUE;
12469
12470         allow_new_row = TRUE;
12471       }
12472       else
12473       {
12474         if ((*ptr == '\n' || *ptr == '\r') && allow_new_row)
12475           start_new_row = TRUE;
12476
12477         ptr++;          // !!! FIX THIS for real UTF-8 handling !!!
12478       }
12479
12480       if (start_new_row)
12481       {
12482         x = 0;
12483         y++;
12484
12485         if (y >= MAX_LEV_FIELDY)
12486           stop = TRUE;
12487
12488         allow_new_row = FALSE;
12489       }
12490     }
12491
12492     SDL_free(clipboard_text);
12493
12494     if (brush_width == 0 || brush_height == 0)
12495     {
12496       Request("No level sketch found in clipboard!", REQ_CONFIRM);
12497
12498       return;
12499     }
12500
12501     if (copy_to_brush)
12502     {
12503       struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_DRAWING_LEVEL];
12504       int mx, my;
12505
12506       SDL_GetMouseState(&mx, &my);
12507
12508       // if inside drawing area, activate and draw brush at last mouse position
12509       if (mx >= gi->x && mx < gi->x + gi->width &&
12510           my >= gi->y && my < gi->y + gi->height)
12511         CopyBrushToCursor(last_cursor_x, last_cursor_y);
12512
12513       draw_with_brush = TRUE;
12514     }
12515     else
12516     {
12517       char request[100];
12518
12519       sprintf(request, "Replace level with %dx%d level sketch from clipboard?",
12520               brush_width, brush_height);
12521
12522       if (!Request(request, REQ_ASK))
12523         return;
12524
12525       for (x = 0; x < MAX_LEV_FIELDX; x++)
12526         for (y = 0; y < MAX_LEV_FIELDY; y++)
12527           Tile[x][y] = brush_buffer[x][y];
12528
12529       lev_fieldx = level.fieldx = brush_width;
12530       lev_fieldy = level.fieldy = brush_height;
12531
12532       boolean use_em_engine = TRUE;
12533       boolean use_sp_engine = TRUE;
12534       boolean use_mm_engine = TRUE;
12535
12536       for (x = 0; x < MAX_LEV_FIELDX; x++)
12537       {
12538         for (y = 0; y < MAX_LEV_FIELDY; y++)
12539         {
12540           int element = Tile[x][y];
12541
12542           if (!IS_EM_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
12543             use_em_engine = FALSE;
12544
12545           if (!IS_SP_ELEMENT(element))
12546             use_sp_engine = FALSE;
12547
12548           if (!IS_MM_ELEMENT(element) && element != EL_EMPTY)
12549             use_mm_engine = FALSE;
12550         }
12551       }
12552
12553       level.game_engine_type = (use_em_engine ? GAME_ENGINE_TYPE_EM :
12554                                 use_sp_engine ? GAME_ENGINE_TYPE_SP :
12555                                 use_mm_engine ? GAME_ENGINE_TYPE_MM :
12556                                 GAME_ENGINE_TYPE_RND);
12557
12558       // update element selection list
12559       ReinitializeElementList();
12560       ModifyEditorElementList();
12561
12562       SetBorderElement();
12563
12564       DrawEditModeWindow();
12565       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
12566     }
12567
12568     return;
12569   }
12570
12571   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
12572     return;
12573
12574   if (mode == CB_AREA_TO_BRUSH)
12575   {
12576     int from_lx, from_ly;
12577
12578     if (from_x > to_x)
12579       swap_numbers(&from_x, &to_x);
12580
12581     if (from_y > to_y)
12582       swap_numbers(&from_y, &to_y);
12583
12584     brush_width = to_x - from_x + 1;
12585     brush_height = to_y - from_y + 1;
12586
12587     from_lx = from_x + level_xpos;
12588     from_ly = from_y + level_ypos;
12589
12590     for (y = 0; y < brush_height; y++)
12591     {
12592       for (x = 0; x < brush_width; x++)
12593       {
12594         brush_buffer[x][y] = Tile[from_lx + x][from_ly + y];
12595
12596         if (button != 1)
12597           DrawBrushElement(from_x + x, from_y + y, new_element, TRUE);
12598       }
12599     }
12600
12601     if (button != 1)
12602       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
12603
12604     delete_old_brush = FALSE;
12605   }
12606   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
12607            mode == CB_BRUSH_TO_LEVEL)
12608   {
12609     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
12610     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
12611     int cursor_from_x = cursor_x - brush_width / 2;
12612     int cursor_from_y = cursor_y - brush_height / 2;
12613     int border_from_x = cursor_x, border_from_y = cursor_y;
12614     int border_to_x = cursor_x, border_to_y = cursor_y;
12615
12616     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
12617       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
12618
12619     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
12620         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
12621     {
12622       delete_old_brush = FALSE;
12623
12624       return;
12625     }
12626
12627     for (y = 0; y < brush_height; y++)
12628     {
12629       for (x = 0; x < brush_width; x++)
12630       {
12631         int sx = cursor_from_x + x;
12632         int sy = cursor_from_y + y;
12633         int lx = sx + level_xpos;
12634         int ly = sy + level_ypos;
12635         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
12636         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
12637                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
12638                        brush_buffer[x][y] : new_element);
12639
12640         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
12641         {
12642           if (sx < border_from_x)
12643             border_from_x = sx;
12644           else if (sx > border_to_x)
12645             border_to_x = sx;
12646           if (sy < border_from_y)
12647             border_from_y = sy;
12648           else if (sy > border_to_y)
12649             border_to_y = sy;
12650
12651           DrawBrushElement(sx, sy, element, change_level);
12652         }
12653       }
12654     }
12655
12656     if (mode != CB_DELETE_OLD_CURSOR)
12657       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
12658
12659     last_cursor_x = cursor_x;
12660     last_cursor_y = cursor_y;
12661
12662     delete_old_brush = TRUE;
12663   }
12664
12665   if (mode == CB_UPDATE_BRUSH_POSITION)
12666   {
12667     last_cursor_x = from_x;
12668     last_cursor_y = from_y;
12669   }
12670 }
12671
12672 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
12673                             int button)
12674 {
12675   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
12676 }
12677
12678 static void CopyBrushToLevel(int x, int y, int button)
12679 {
12680   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
12681 }
12682
12683 static void CopyBrushToCursor(int x, int y)
12684 {
12685   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
12686 }
12687
12688 static void UpdateBrushPosition(int x, int y)
12689 {
12690   CopyBrushExt(x, y, 0, 0, 0, CB_UPDATE_BRUSH_POSITION);
12691 }
12692
12693 static void DeleteBrushFromCursor(void)
12694 {
12695   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
12696 }
12697
12698 void DumpBrush(void)
12699 {
12700   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
12701 }
12702
12703 void DumpBrush_Small(void)
12704 {
12705   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
12706 }
12707
12708 void CopyClipboardToBrush(void)
12709 {
12710   CopyBrushExt(0, 0, 0, 0, 0, CB_CLIPBOARD_TO_BRUSH);
12711 }
12712
12713 void CopyBrushToClipboard(void)
12714 {
12715   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD);
12716 }
12717
12718 void CopyBrushToClipboard_Small(void)
12719 {
12720   CopyBrushExt(0, 0, 0, 0, 0, CB_BRUSH_TO_CLIPBOARD_SMALL);
12721 }
12722
12723 void UndoLevelEditorOperation(void)
12724 {
12725   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], -1);
12726 }
12727
12728 void RedoLevelEditorOperation(void)
12729 {
12730   ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
12731 }
12732
12733 static void FloodFill(int from_x, int from_y, int fill_element)
12734 {
12735   FloodFillLevel(from_x, from_y, fill_element, Tile, lev_fieldx, lev_fieldy);
12736 }
12737
12738 static void FloodFillWall_MM(int from_sx2, int from_sy2, int fill_element)
12739 {
12740   int from_x = from_sx2 + 2 * level_xpos;
12741   int from_y = from_sy2 + 2 * level_ypos;
12742   int max_fillx = lev_fieldx * 2;
12743   int max_filly = lev_fieldy * 2;
12744   short Fill[max_fillx][max_filly];
12745   int x, y;
12746
12747   for (x = 0; x < max_fillx; x++)
12748     for (y = 0; y < max_filly; y++)
12749       Fill[x][y] = getLevelElementHiRes(x, y);
12750
12751   FloodFillLevelExt(from_x, from_y, fill_element, max_fillx, max_filly,
12752                     Fill, max_fillx, max_filly);
12753
12754   for (x = 0; x < max_fillx; x++)
12755     for (y = 0; y < max_filly; y++)
12756       if (Fill[x][y] == fill_element)
12757         SetLevelElementHiRes(x, y, Fill[x][y]);
12758 }
12759
12760 // values for DrawLevelText() modes
12761 #define TEXT_INIT               0
12762 #define TEXT_SETCURSOR          1
12763 #define TEXT_WRITECHAR          2
12764 #define TEXT_BACKSPACE          3
12765 #define TEXT_NEWLINE            4
12766 #define TEXT_END                5
12767 #define TEXT_QUERY_TYPING       6
12768
12769 static int DrawLevelText(int sx, int sy, char letter, int mode)
12770 {
12771   static short delete_buffer[MAX_LEV_FIELDX];
12772   static int start_sx;
12773   static int last_sx, last_sy;
12774   static boolean typing = FALSE;
12775   int letter_element;
12776   int lx = 0, ly = 0;
12777
12778   // map lower case letters to upper case and convert special characters
12779   if (letter >= 'a' && letter <= 'z')
12780     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
12781   else if (letter == CHAR_BYTE_UMLAUT_a || letter == CHAR_BYTE_UMLAUT_A)
12782     letter_element = EL_CHAR_AUMLAUT;
12783   else if (letter == CHAR_BYTE_UMLAUT_o || letter == CHAR_BYTE_UMLAUT_O)
12784     letter_element = EL_CHAR_OUMLAUT;
12785   else if (letter == CHAR_BYTE_UMLAUT_u || letter == CHAR_BYTE_UMLAUT_U)
12786     letter_element = EL_CHAR_UUMLAUT;
12787   else if (letter == '^')
12788     letter_element = EL_CHAR_COPYRIGHT;
12789   else
12790     letter_element = EL_CHAR_ASCII0 + letter;
12791
12792   if (mode != TEXT_INIT)
12793   {
12794     if (!typing)
12795       return FALSE;
12796
12797     if (mode != TEXT_SETCURSOR)
12798     {
12799       sx = last_sx;
12800       sy = last_sy;
12801     }
12802
12803     lx = last_sx + level_xpos;
12804     ly = last_sy + level_ypos;
12805   }
12806
12807   switch (mode)
12808   {
12809     case TEXT_INIT:
12810       if (typing)
12811         DrawLevelText(0, 0, 0, TEXT_END);
12812
12813       typing = TRUE;
12814       start_sx = sx;
12815       last_sx = sx;
12816       last_sy = sy;
12817       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
12818       break;
12819
12820     case TEXT_SETCURSOR:
12821       DrawEditorElement(last_sx, last_sy, Tile[lx][ly]);
12822       DrawAreaBorder(sx, sy, sx, sy);
12823       StartTextInput(SX + sx * ed_tilesize, SY + sy * ed_tilesize,
12824                      ed_tilesize, ed_tilesize);
12825       last_sx = sx;
12826       last_sy = sy;
12827       break;
12828
12829     case TEXT_WRITECHAR:
12830       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
12831       {
12832         if (new_element1 >= EL_STEEL_CHAR_START &&
12833             new_element1 <= EL_STEEL_CHAR_END)
12834           letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
12835
12836         delete_buffer[sx - start_sx] = Tile[lx][ly];
12837         Tile[lx][ly] = letter_element;
12838
12839         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
12840           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
12841         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
12842           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
12843         else
12844           DrawLevelText(0, 0, 0, TEXT_END);
12845
12846         level.changed = TRUE;
12847       }
12848       break;
12849
12850     case TEXT_BACKSPACE:
12851       if (sx > start_sx)
12852       {
12853         Tile[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
12854         DrawEditorElement(sx - 1, sy, Tile[lx - 1][ly]);
12855         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
12856       }
12857       break;
12858
12859     case TEXT_NEWLINE:
12860       if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
12861         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
12862       else
12863         DrawLevelText(0, 0, 0, TEXT_END);
12864       break;
12865
12866     case TEXT_END:
12867       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
12868       DrawEditorElement(sx, sy, Tile[lx][ly]);
12869       StopTextInput();
12870       typing = FALSE;
12871       break;
12872
12873     case TEXT_QUERY_TYPING:
12874       break;
12875
12876     default:
12877       break;
12878   }
12879
12880   return typing;
12881 }
12882
12883 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
12884                           int element, boolean change_level)
12885 {
12886   int lx = sx + level_xpos;
12887   int ly = sy + level_ypos;
12888
12889   if (element == -1)
12890     DrawEditorElement(sx, sy, Tile[lx][ly]);
12891   else
12892     DrawAreaBorder(sx, sy, sx, sy);
12893 }
12894
12895 static void CheckLevelBorderElement(boolean redraw_playfield)
12896 {
12897   int last_border_element = BorderElement;
12898
12899   SetBorderElement();
12900
12901   if (redraw_playfield && BorderElement != last_border_element)
12902     DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
12903 }
12904
12905 static void CopyLevelToUndoBuffer(int mode)
12906 {
12907   static boolean accumulated_undo = FALSE;
12908   boolean new_undo_buffer_position = TRUE;
12909   int x, y;
12910
12911   if (undo_buffer_steps == 0)
12912     accumulated_undo = FALSE;
12913
12914   switch (mode)
12915   {
12916     case UNDO_IMMEDIATE:
12917       accumulated_undo = FALSE;
12918       break;
12919
12920     case UNDO_ACCUMULATE:
12921       if (accumulated_undo)
12922         new_undo_buffer_position = FALSE;
12923       accumulated_undo = TRUE;
12924       break;
12925
12926     default:
12927       break;
12928   }
12929
12930   if (new_undo_buffer_position)
12931   {
12932     // advance position in undo buffer ring
12933     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
12934
12935     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
12936       undo_buffer_steps++;
12937   }
12938
12939   // always reset redo buffer when storing level change into undo buffer
12940   redo_buffer_steps = 0;
12941
12942   for (x = 0; x < lev_fieldx; x++)
12943     for (y = 0; y < lev_fieldy; y++)
12944       UndoBuffer[undo_buffer_position][x][y] = Tile[x][y];
12945
12946   // check if drawing operation forces change of border style
12947   CheckLevelBorderElement(TRUE);
12948
12949   level.changed = TRUE;
12950 }
12951
12952 static void RandomPlacement(int new_element)
12953 {
12954   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
12955   int num_free_positions = 0;
12956   int num_percentage, num_elements;
12957   int x, y;
12958
12959   ResetIntelliDraw();
12960
12961   // determine number of free positions for randomly placing the new element
12962   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
12963   {
12964     free_position[x][y] =
12965       (random_placement_background_restricted ?
12966        Tile[x][y] == random_placement_background_element :
12967        Tile[x][y] != new_element);
12968
12969     if (free_position[x][y])
12970       num_free_positions++;
12971   }
12972
12973   // determine number of new elements to place there
12974   num_percentage = num_free_positions * random_placement_value / 100;
12975   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
12976                   num_percentage : random_placement_value);
12977
12978   // if less free positions than elements to place, fill all these positions
12979   if (num_free_positions < num_elements)
12980   {
12981     for (x = 0; x < lev_fieldx; x++)
12982       for (y = 0; y < lev_fieldy; y++)
12983         if (free_position[x][y])
12984           SetElement(x, y, new_element);
12985   }
12986   else
12987   {
12988     while (num_elements > 0)
12989     {
12990       x = GetSimpleRandom(lev_fieldx);
12991       y = GetSimpleRandom(lev_fieldy);
12992
12993       // don't place element at the same position twice
12994       if (free_position[x][y])
12995       {
12996         free_position[x][y] = FALSE;
12997         SetElement(x, y, new_element);
12998         num_elements--;
12999       }
13000     }
13001   }
13002
13003   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13004   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13005 }
13006
13007 static void WrapLevel(int dx, int dy)
13008 {
13009   int wrap_dx = lev_fieldx - dx;
13010   int wrap_dy = lev_fieldy - dy;
13011   int x, y;
13012
13013   for (x = 0; x < lev_fieldx; x++)
13014     for (y = 0; y < lev_fieldy; y++)
13015       TileBackup[x][y] = Tile[x][y];
13016
13017   for (x = 0; x < lev_fieldx; x++)
13018     for (y = 0; y < lev_fieldy; y++)
13019       Tile[x][y] =
13020         TileBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
13021
13022   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13023   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
13024 }
13025
13026 static void DrawAreaElementHighlight(boolean highlighted)
13027 {
13028   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13029
13030   if (!highlighted)
13031     return;
13032
13033   int x, y;
13034
13035   for (x = 0; x < ed_fieldx; x++)
13036   {
13037     for (y = 0; y < ed_fieldy; y++)
13038     {
13039       int lx = x + level_xpos;
13040       int ly = y + level_ypos;
13041
13042       if (!IN_LEV_FIELD(lx, ly))
13043         continue;
13044
13045       if (Tile[lx][ly] != new_element1)
13046         continue;
13047
13048       int sx = SX + x * ed_tilesize;
13049       int sy = SY + y * ed_tilesize;
13050       int from_sx = sx;
13051       int from_sy = sy;
13052       int to_sx = sx + ed_tilesize - 1;
13053       int to_sy = sy + ed_tilesize - 1;
13054
13055       DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
13056       DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
13057       DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
13058       DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
13059     }
13060   }
13061 }
13062
13063 static void CopyLevelTemplateToUserLevelSet(char *levelset_subdir)
13064 {
13065   char *template_filename_old = getLocalLevelTemplateFilename();
13066   char *template_filename_new =
13067     getPath2(getUserLevelDir(levelset_subdir), LEVELTEMPLATE_FILENAME);
13068
13069   if (copyFile(template_filename_old, template_filename_new) != 0)
13070     Request("Cannot copy level template!", REQ_CONFIRM);
13071
13072   free(template_filename_new);
13073 }
13074
13075 static void HandleDrawingAreas(struct GadgetInfo *gi)
13076 {
13077   static boolean started_inside_drawing_area = FALSE;
13078   static int last_sx = -1;
13079   static int last_sy = -1;
13080   static int last_sx2 = -1;
13081   static int last_sy2 = -1;
13082   int id = gi->custom_id;
13083   int type_id = gi->custom_type_id;
13084   boolean button_press_event;
13085   boolean button_release_event;
13086   boolean inside_drawing_area = !gi->event.off_borders;
13087   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
13088   int actual_drawing_function;
13089   int button = gi->event.button;
13090   int new_element = BUTTON_ELEMENT(button);
13091   int sx = gi->event.x, sy = gi->event.y;
13092   int min_sx = 0, min_sy = 0;
13093   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
13094   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
13095   int mini_item_xsize = item_xsize / 2, mini_item_ysize = item_ysize / 2;
13096   int sx2 = gi->event.mx / mini_item_xsize;
13097   int sy2 = gi->event.my / mini_item_ysize;
13098   int dx = sx2 % 2;
13099   int dy = sy2 % 2;
13100   int lx = 0, ly = 0;
13101   int x, y;
13102
13103   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
13104   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
13105
13106   // make sure to stay inside drawing area boundaries
13107   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
13108   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
13109
13110   if (draw_level)
13111   {
13112     int min_lx = 0, min_ly = 0;
13113     int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
13114
13115     // get positions inside level field
13116     lx = sx + level_xpos;
13117     ly = sy + level_ypos;
13118
13119     if (!IN_LEV_FIELD(lx, ly))
13120       inside_drawing_area = FALSE;
13121
13122     // make sure to stay inside level field boundaries
13123     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
13124     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
13125
13126     // correct drawing area positions accordingly
13127     sx = lx - level_xpos;
13128     sy = ly - level_ypos;
13129   }
13130
13131   // also correct MM wall-sized (double) drawing area positions accordingly
13132   if (sx2 / 2 < sx || sx2 / 2 > sx)
13133   {
13134     dx = (sx2 / 2 < sx ? 0 : 1);
13135     sx2 = sx * 2 + dx;
13136   }
13137   if (sy2 / 2 < sy || sy2 / 2 > sy)
13138   {
13139     dy = (sy2 / 2 < sy ? 0 : 1);
13140     sy2 = sy * 2 + dy;
13141   }
13142
13143   if (!button_press_event && !button_release_event)
13144   {
13145     int old_element = (IN_LEV_FIELD(lx, ly) ? Tile[lx][ly] : EL_UNDEFINED);
13146     boolean hires_drawing = (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
13147                              isHiresTileElement(old_element) &&
13148                              isHiresDrawElement(new_element));
13149
13150     // prevent handling events for every pixel position when moving mouse
13151     if ((sx == last_sx && sy == last_sy && !hires_drawing) ||
13152         (sx2 == last_sx2 && sy2 == last_sy2))
13153       return;
13154   }
13155
13156   last_sx = sx;
13157   last_sy = sy;
13158   last_sx2 = sx2;
13159   last_sy2 = sy2;
13160
13161   if (button_press_event)
13162     started_inside_drawing_area = inside_drawing_area;
13163
13164   if (!started_inside_drawing_area)
13165     return;
13166
13167   if (!IS_VALID_BUTTON(button))
13168     return;
13169
13170   // handle info callback for each invocation of action callback
13171   gi->callback_info(gi);
13172
13173   // automatically switch to 'single item' drawing mode, if needed
13174   actual_drawing_function =
13175     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
13176      drawing_function : GADGET_ID_SINGLE_ITEMS);
13177
13178   // clicking into drawing area with pressed Control key picks element
13179   if (GetKeyModState() & KMOD_Control)
13180   {
13181     last_drawing_function = drawing_function;
13182     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
13183   }
13184
13185   if (GetKeyModState() & KMOD_Shift)
13186   {
13187     if (button_press_event || button_release_event)
13188       ResetIntelliDraw();
13189   }
13190
13191   SetDrawModeHiRes(-1);         // reset to normal draw mode
13192
13193   switch (actual_drawing_function)
13194   {
13195     case GADGET_ID_SINGLE_ITEMS:
13196       if (draw_level)
13197       {
13198         if (button_release_event)
13199         {
13200           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13201
13202           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
13203               !inside_drawing_area)
13204             DeleteBrushFromCursor();
13205
13206           break;
13207         }
13208
13209         if (draw_with_brush)
13210         {
13211           CopyBrushToLevel(sx, sy, button);
13212         }
13213         else
13214         {
13215           SetDrawModeHiRes(new_element);
13216
13217           if (IS_PLAYER_ELEMENT(new_element))
13218           {
13219             // remove player at old position
13220             for (y = 0; y < lev_fieldy; y++)
13221             {
13222               for (x = 0; x < lev_fieldx; x++)
13223               {
13224                 int old_element = Tile[x][y];
13225
13226                 if (IS_PLAYER_ELEMENT(old_element))
13227                 {
13228                   int replaced_with_element =
13229                     (old_element == EL_SOKOBAN_FIELD_PLAYER &&
13230                      new_element == EL_PLAYER_1 ? EL_SOKOBAN_FIELD_EMPTY :
13231
13232                      old_element == EL_SOKOBAN_FIELD_PLAYER &&
13233                      new_element == old_element ? EL_SOKOBAN_FIELD_EMPTY :
13234
13235                      new_element == EL_SOKOBAN_FIELD_PLAYER &&
13236                      old_element == EL_PLAYER_1 ? EL_EMPTY :
13237
13238                      new_element >= EL_PLAYER_1 &&
13239                      new_element <= EL_PLAYER_4 &&
13240                      new_element == old_element ? EL_EMPTY :
13241
13242                      old_element);
13243
13244                   SetElement(x, y, replaced_with_element);
13245                 }
13246               }
13247             }
13248           }
13249
13250           SetElementButton(lx, ly, dx, dy, new_element, button);
13251         }
13252       }
13253       else if (!button_release_event)
13254       {
13255         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
13256
13257         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
13258           DrawMiniGraphicExt(drawto,
13259                              gi->x + sx * MINI_TILEX,
13260                              gi->y + sy * MINI_TILEY,
13261                              el2edimg(new_element));
13262         else
13263           DrawFixedGraphicExt(drawto,
13264                               gi->x + sx * TILEX,
13265                               gi->y + sy * TILEY,
13266                               el2edimg(new_element), 0);
13267
13268         if (id == GADGET_ID_CUSTOM_GRAPHIC)
13269           new_element = GFX_ELEMENT(new_element);
13270
13271         drawingarea_info[type_id].value[pos] = new_element;
13272
13273         CopyElementPropertiesToGame(properties_element);
13274
13275         if (id == GADGET_ID_CUSTOM_GRAPHIC)
13276         {
13277           UpdateCustomElementGraphicGadgets();
13278
13279           FrameCounter = 0;     // restart animation frame counter
13280         }
13281       }
13282       break;
13283
13284     case GADGET_ID_CONNECTED_ITEMS:
13285       {
13286         static int last_sx = -1;
13287         static int last_sy = -1;
13288
13289         if (button_release_event)
13290           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13291
13292         SetDrawModeHiRes(new_element);
13293
13294         if (getDrawModeHiRes())
13295         {
13296           sx = sx2;
13297           sy = sy2;
13298         }
13299
13300         if (!button_press_event)
13301           DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
13302
13303         last_sx = sx;
13304         last_sy = sy;
13305       }
13306       break;
13307
13308     case GADGET_ID_LINE:
13309     case GADGET_ID_ARC:
13310     case GADGET_ID_RECTANGLE:
13311     case GADGET_ID_FILLED_BOX:
13312       SetDrawModeHiRes(new_element);
13313
13314       if (getDrawModeHiRes())
13315       {
13316         sx = sx2;
13317         sy = sy2;
13318       }
13319       // FALLTHROUGH
13320     case GADGET_ID_GRAB_BRUSH:
13321     case GADGET_ID_TEXT:
13322       {
13323         static int last_sx = -1;
13324         static int last_sy = -1;
13325         static int start_sx = -1;
13326         static int start_sy = -1;
13327         void (*draw_func)(int, int, int, int, int, boolean);
13328
13329         if (drawing_function == GADGET_ID_LINE)
13330           draw_func = DrawLine;
13331         else if (drawing_function == GADGET_ID_ARC)
13332           draw_func = DrawArc;
13333         else if (drawing_function == GADGET_ID_RECTANGLE)
13334           draw_func = DrawBox;
13335         else if (drawing_function == GADGET_ID_FILLED_BOX)
13336           draw_func = DrawFilledBox;
13337         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
13338           draw_func = SelectArea;
13339         else // (drawing_function == GADGET_ID_TEXT)
13340           draw_func = SetTextCursor;
13341
13342         if (button_press_event)
13343         {
13344           draw_func(sx, sy, sx, sy, new_element, FALSE);
13345           start_sx = last_sx = sx;
13346           start_sy = last_sy = sy;
13347
13348           if (drawing_function == GADGET_ID_TEXT)
13349             DrawLevelText(0, 0, 0, TEXT_END);
13350         }
13351         else if (button_release_event)
13352         {
13353           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
13354           if (drawing_function == GADGET_ID_GRAB_BRUSH)
13355           {
13356             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
13357             CopyBrushToCursor(sx, sy);
13358             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
13359                           MB_LEFTBUTTON);
13360             draw_with_brush = TRUE;
13361           }
13362           else if (drawing_function == GADGET_ID_TEXT)
13363             DrawLevelText(sx, sy, 0, TEXT_INIT);
13364           else
13365             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13366         }
13367         else if (last_sx != sx || last_sy != sy)
13368         {
13369           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
13370           if (IS_MM_WALL_EDITOR(new_element))   // clear wall background
13371             draw_func(start_sx, start_sy, sx, sy, EL_EMPTY, FALSE);
13372           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
13373           last_sx = sx;
13374           last_sy = sy;
13375         }
13376       }
13377       break;
13378
13379     case GADGET_ID_FLOOD_FILL:
13380       if (button_press_event && Tile[lx][ly] != new_element)
13381       {
13382         if (IS_MM_WALL_EDITOR(new_element))
13383           FloodFillWall_MM(sx2, sy2, new_element);
13384         else
13385           FloodFill(lx, ly, new_element);
13386
13387         DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
13388         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
13389       }
13390       break;
13391
13392     case GADGET_ID_PICK_ELEMENT:
13393       if (button_release_event)
13394         ClickOnGadget(level_editor_gadget[last_drawing_function],
13395                       MB_LEFTBUTTON);
13396       else if (draw_level)
13397         PickDrawingElement(button, Tile[lx][ly]);
13398       else
13399       {
13400         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
13401
13402         PickDrawingElement(button, drawingarea_info[type_id].value[pos]);
13403       }
13404
13405     default:
13406       break;
13407   }
13408
13409   // do not mark level as modified for certain non-level-changing gadgets
13410   if ((type_id >= ED_DRAWING_ID_EDITOR_FIRST &&
13411        type_id <= ED_DRAWING_ID_EDITOR_LAST) ||
13412       actual_drawing_function == GADGET_ID_GRAB_BRUSH ||
13413       actual_drawing_function == GADGET_ID_PICK_ELEMENT)
13414     return;
13415
13416   level.changed = TRUE;
13417 }
13418
13419 static void HandleCounterButtons(struct GadgetInfo *gi)
13420 {
13421   int gadget_id = gi->custom_id;
13422   int counter_id = gi->custom_type_id;
13423   int button = gi->event.button;
13424   int *counter_value = counterbutton_info[counter_id].value;
13425   int step = BUTTON_STEPSIZE(button) *
13426     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
13427
13428   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
13429   {
13430     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
13431     boolean released = (gi->event.type == GD_EVENT_RELEASED);
13432     boolean level_changed = LevelChanged();
13433
13434     if ((level_changed && pressed) || (!level_changed && released))
13435       return;
13436
13437     if (level_changed && !Request("Level has changed! Discard changes?",
13438                                   REQ_ASK))
13439     {
13440       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
13441         ModifyEditorCounterValue(counter_id, *counter_value);
13442
13443       return;
13444     }
13445   }
13446
13447   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
13448     *counter_value = gi->textinput.number_value;
13449   else
13450     ModifyEditorCounterValue(counter_id, *counter_value + step);
13451
13452   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
13453   {
13454     int last_game_engine_type = level.game_engine_type;
13455
13456     LoadLevel(level_nr);
13457     LoadScore(level_nr);
13458
13459     SaveLevelSetup_SeriesInfo();
13460
13461     TapeErase();
13462
13463     ResetUndoBuffer();
13464     DrawEditModeWindow();
13465
13466     if (level.game_engine_type != last_game_engine_type)
13467     {
13468       // update element selection list
13469       ReinitializeElementList();
13470       ModifyEditorElementList();
13471     }
13472
13473     return;
13474   }
13475
13476   switch (counter_id)
13477   {
13478     case ED_COUNTER_ID_YAMYAM_CONTENT:
13479       DrawYamYamContentAreas();
13480       break;
13481
13482     case ED_COUNTER_ID_BALL_CONTENT:
13483       DrawMagicBallContentAreas();
13484       break;
13485
13486     case ED_COUNTER_ID_ANDROID_CONTENT:
13487       DrawAndroidElementArea();
13488       break;
13489
13490     case ED_COUNTER_ID_GROUP_CONTENT:
13491       DrawGroupElementArea();
13492       CopyGroupElementPropertiesToGame(properties_element);
13493       break;
13494
13495     case ED_COUNTER_ID_INVENTORY_SIZE:
13496       DrawPlayerInitialInventoryArea(properties_element);
13497       break;
13498
13499     case ED_COUNTER_ID_MM_BALL_CONTENT:
13500       DrawMMBallContentArea();
13501       break;
13502
13503     case ED_COUNTER_ID_ENVELOPE_XSIZE:
13504     case ED_COUNTER_ID_ENVELOPE_YSIZE:
13505       DrawEnvelopeTextArea(-1);
13506       break;
13507
13508     case ED_COUNTER_ID_LEVEL_XSIZE:
13509     case ED_COUNTER_ID_LEVEL_YSIZE:
13510       lev_fieldx = level.fieldx;
13511       lev_fieldy = level.fieldy;
13512
13513       // check if resizing of level results in change of border border
13514       SetBorderElement();
13515
13516       break;
13517
13518     default:
13519       break;
13520   }
13521
13522   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
13523        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
13524       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
13525        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
13526     CopyElementPropertiesToGame(properties_element);
13527
13528   // do not mark level as modified for certain non-level-changing gadgets
13529   if ((counter_id >= ED_COUNTER_ID_LEVELSET_FIRST &&
13530        counter_id <= ED_COUNTER_ID_LEVELSET_LAST) ||
13531       (counter_id >= ED_COUNTER_ID_EDITOR_FIRST &&
13532        counter_id <= ED_COUNTER_ID_EDITOR_LAST))
13533     return;
13534
13535   level.changed = TRUE;
13536 }
13537
13538 static void HandleTextInputGadgets(struct GadgetInfo *gi)
13539 {
13540   int type_id = gi->custom_type_id;
13541
13542   strcpy(textinput_info[type_id].value, gi->textinput.value);
13543
13544   if (type_id == ED_TEXTINPUT_ID_ELEMENT_NAME)
13545   {
13546     CopyElementPropertiesToGame(properties_element);
13547
13548     ModifyEditorElementList();  // update changed button info text
13549   }
13550
13551   // do not mark level as modified for certain non-level-changing gadgets
13552   if (type_id >= ED_TEXTINPUT_ID_LEVELSET_FIRST &&
13553       type_id <= ED_TEXTINPUT_ID_LEVELSET_LAST)
13554     return;
13555
13556   level.changed = TRUE;
13557 }
13558
13559 static void HandleTextAreaGadgets(struct GadgetInfo *gi)
13560 {
13561   int type_id = gi->custom_type_id;
13562
13563   strncpy(textarea_info[type_id].value, gi->textarea.value,
13564           MAX_ENVELOPE_TEXT_LEN);
13565   textarea_info[type_id].value[MAX_ENVELOPE_TEXT_LEN] = '\0';
13566
13567   level.changed = TRUE;
13568 }
13569
13570 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
13571 {
13572   int type_id = gi->custom_type_id;
13573   int value_old = *selectbox_info[type_id].value;
13574   int value_new = selectbox_info[type_id].options[gi->selectbox.index].value;
13575
13576   *selectbox_info[type_id].value = value_new;
13577
13578   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE)
13579   {
13580     DrawLevelInfoWindow();
13581   }
13582   else if (type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
13583   {
13584     element_info[properties_element].current_change_page = gi->selectbox.index;
13585
13586     DrawPropertiesWindow();
13587   }
13588   else if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
13589             type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
13590            (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
13591             type_id <= ED_SELECTBOX_ID_CHANGE_LAST) ||
13592            (type_id == ED_SELECTBOX_ID_GROUP_CHOICE_MODE))
13593   {
13594     if (type_id == ED_SELECTBOX_ID_ACTION_TYPE)
13595     {
13596       // when changing action type, also check action mode and action arg
13597       if (value_old != value_new)
13598         setSelectboxSpecialActionVariablesIfNeeded();
13599
13600       DrawPropertiesChange();
13601     }
13602
13603     CopyElementPropertiesToGame(properties_element);
13604   }
13605   else if (type_id == ED_SELECTBOX_ID_GAME_ENGINE_TYPE)
13606   {
13607     // update element selection list
13608     ReinitializeElementList();
13609     ModifyEditorElementList();
13610   }
13611
13612   // do not mark level as modified for certain non-level-changing gadgets
13613   if (type_id == ED_SELECTBOX_ID_LEVELSET_SAVE_MODE ||
13614       type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
13615     return;
13616
13617   level.changed = TRUE;
13618 }
13619
13620 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
13621 {
13622   int type_id = gi->custom_type_id;
13623   int i;
13624
13625   if (type_id >= ED_TAB_BUTTON_ID_LEVELINFO_FIRST &&
13626       type_id <= ED_TAB_BUTTON_ID_LEVELINFO_LAST)
13627   {
13628     edit_mode_levelinfo = gi->custom_type_id;
13629
13630     DrawLevelInfoWindow();
13631   }
13632   else if (type_id >= ED_TAB_BUTTON_ID_PROPERTIES_FIRST &&
13633            type_id <= ED_TAB_BUTTON_ID_PROPERTIES_LAST)
13634   {
13635     edit_mode_properties = gi->custom_type_id;
13636
13637     DrawPropertiesWindow();
13638   }
13639   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_1 ||
13640            type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE_2)
13641   {
13642     boolean new_template = !fileExists(getLocalLevelTemplateFilename());
13643
13644     // backup original "level.field" (needed to track playfield changes)
13645     CopyPlayfield(level.field, TileBackup);
13646
13647     // "SaveLevelTemplate()" uses "level.field", so copy editor playfield
13648     CopyPlayfield(Tile, level.field);
13649
13650     if (new_template ||
13651         Request("Save this template and kill the old?", REQ_ASK))
13652       SaveLevelTemplate();
13653
13654     if (new_template)
13655       Request("Template saved!", REQ_CONFIRM);
13656
13657     // restore original "level.field" (needed to track playfield changes)
13658     CopyPlayfield(TileBackup, level.field);
13659   }
13660   else if (type_id == ED_TEXTBUTTON_ID_SAVE_LEVELSET)
13661   {
13662     char *levelset_subdir = getLevelSubdirFromSaveMode(levelset_save_mode);
13663
13664     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE &&
13665         leveldir_current->readonly)
13666     {
13667       Request("This level set is read-only!", REQ_CONFIRM);
13668
13669       return;
13670     }
13671
13672     if (strEqual(levelset_name, ""))
13673     {
13674       Request("Please enter level set title!", REQ_CONFIRM);
13675
13676       return;
13677     }
13678
13679     if (strEqual(levelset_author, ""))
13680     {
13681       Request("Please enter level set author!", REQ_CONFIRM);
13682
13683       return;
13684     }
13685
13686     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE)
13687     {
13688       if (UpdateUserLevelSet(levelset_subdir,
13689                              levelset_name,
13690                              levelset_author,
13691                              levelset_num_levels))
13692       {
13693         Request("Level set updated!", REQ_CONFIRM);
13694       }
13695       else
13696       {
13697         Request("Updating level set failed!", REQ_CONFIRM);
13698       }
13699     }
13700     else if (levelset_save_mode == LEVELSET_SAVE_MODE_CREATE)
13701     {
13702       if (level.changed && !Request("Level has changed! Discard changes?",
13703                                      REQ_ASK))
13704         return;
13705
13706       if (CreateUserLevelSet(levelset_subdir,
13707                              levelset_name,
13708                              levelset_author,
13709                              levelset_num_levels,
13710                              levelset_use_levelset_artwork))
13711       {
13712         if (levelset_copy_level_template)
13713           CopyLevelTemplateToUserLevelSet(levelset_subdir);
13714
13715         Request("New level set created!", REQ_CONFIRM);
13716
13717         AddUserLevelSetToLevelInfo(levelset_subdir);
13718         ChangeEditorToLevelSet(levelset_subdir);
13719       }
13720       else
13721       {
13722         Request("Creating new level set failed!", REQ_CONFIRM);
13723       }
13724     }
13725   }
13726   else if (type_id == ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE &&
13727            custom_element.num_change_pages < MAX_CHANGE_PAGES)
13728   {
13729     struct ElementInfo *ei = &element_info[properties_element];
13730
13731     // when modifying custom element, ask for copying level template
13732     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
13733       return;
13734
13735     setElementChangePages(ei, ei->num_change_pages + 1);
13736
13737     // set new change page to be new current change page
13738     ei->current_change_page = ei->num_change_pages - 1;
13739     ei->change = &ei->change_page[ei->current_change_page];
13740
13741     setElementChangeInfoToDefaults(ei->change);
13742
13743     DrawPropertiesWindow();
13744
13745     level.changed = TRUE;
13746   }
13747   else if (type_id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
13748            custom_element.num_change_pages > MIN_CHANGE_PAGES)
13749   {
13750     struct ElementInfo *ei = &element_info[properties_element];
13751
13752     // when modifying custom element, ask for copying level template
13753     if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
13754       return;
13755
13756     // copy all change pages after change page to be deleted
13757     for (i = ei->current_change_page; i < ei->num_change_pages - 1; i++)
13758       ei->change_page[i] = ei->change_page[i + 1];
13759
13760     setElementChangePages(ei, ei->num_change_pages - 1);
13761
13762     DrawPropertiesWindow();
13763
13764     level.changed = TRUE;
13765   }
13766 }
13767
13768 static void HandleGraphicbuttonGadgets(struct GadgetInfo *gi)
13769 {
13770   int type_id = gi->custom_type_id;
13771
13772   if (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ||
13773       type_id == ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE)
13774   {
13775     struct ElementInfo *ei = &element_info[properties_element];
13776     int step = BUTTON_STEPSIZE(gi->event.button);
13777
13778     step *= (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ? -1 : +1);
13779     ei->current_change_page += step;
13780
13781     if (ei->current_change_page < 0)
13782       ei->current_change_page = 0;
13783     else if (ei->current_change_page >= ei->num_change_pages)
13784       ei->current_change_page = ei->num_change_pages - 1;
13785
13786     DrawPropertiesWindow();
13787   }
13788   else if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE ||
13789            type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
13790   {
13791     struct ElementInfo *ei = &element_info[properties_element];
13792     int current_change_page = ei->current_change_page;
13793
13794     if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE)
13795     {
13796       element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0] =
13797         ei->change_page[current_change_page];
13798     }
13799     else if (type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
13800     {
13801       // when modifying custom element, ask for copying level template
13802       if (level.use_custom_template && !AskToCopyAndModifyLevelTemplate())
13803         return;
13804
13805       ei->change_page[current_change_page] =
13806         element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0];
13807
13808       level.changed = TRUE;
13809     }
13810
13811     DrawPropertiesWindow();
13812   }
13813 }
13814
13815 static void HandleRadiobuttons(struct GadgetInfo *gi)
13816 {
13817   int type_id = gi->custom_type_id;
13818
13819   *radiobutton_info[type_id].value =
13820     radiobutton_info[type_id].checked_value;
13821
13822   // do not mark level as modified for certain non-level-changing gadgets
13823   if (type_id >= ED_RADIOBUTTON_ID_EDITOR_FIRST &&
13824       type_id <= ED_RADIOBUTTON_ID_EDITOR_LAST)
13825     return;
13826
13827   level.changed = TRUE;
13828 }
13829
13830 static void HandleCheckbuttons(struct GadgetInfo *gi)
13831 {
13832   int type_id = gi->custom_type_id;
13833
13834   *checkbutton_info[type_id].value ^= TRUE;
13835
13836   if (type_id == ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID ||
13837       type_id == ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID ||
13838       type_id == ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH ||
13839       (((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
13840          type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
13841         (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
13842          type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST)) &&
13843        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1))
13844   {
13845     CopyElementPropertiesToGame(properties_element);
13846   }
13847
13848   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
13849   {
13850     UpdateCustomElementGraphicGadgets();
13851   }
13852   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_1 ||
13853            type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2)
13854   {
13855     boolean template_related_changes_found = FALSE;
13856     int i;
13857
13858     // check if any custom, group or empty elements have been changed
13859     for (i = 0; i < NUM_FILE_ELEMENTS; i++)
13860       if ((IS_CUSTOM_ELEMENT(i) ||
13861            IS_GROUP_ELEMENT(i) ||
13862            IS_EMPTY_ELEMENT(i)) &&
13863           element_info[i].modified_settings)
13864         template_related_changes_found = TRUE;
13865
13866     if (level.use_custom_template &&
13867         !fileExists(getGlobalLevelTemplateFilename()))
13868     {
13869       Request("No level template found!", REQ_CONFIRM);
13870
13871       level.use_custom_template = FALSE;
13872
13873       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
13874
13875       return;
13876     }
13877
13878     if (level.use_custom_template &&
13879         template_related_changes_found &&
13880         !Request("Discard changes and use level template?", REQ_ASK))
13881     {
13882       level.use_custom_template = FALSE;
13883
13884       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
13885
13886       return;
13887     }
13888
13889     if (!level.use_custom_template &&
13890         Request("Copy settings from level template?", REQ_ASK))
13891     {
13892       return;
13893     }
13894
13895     LoadLevelTemplate(level.use_custom_template ? -1 : level_nr);
13896
13897     DrawEditModeWindow();
13898   }
13899   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_3)
13900   {
13901     if (setup.editor.use_template_for_new_levels &&
13902         !fileExists(getGlobalLevelTemplateFilename()))
13903     {
13904       Request("No level template found!", REQ_CONFIRM);
13905
13906       return;
13907     }
13908
13909     if (setup.editor.use_template_for_new_levels &&
13910         level.changed &&
13911         !Request("Discard level and load template?", REQ_ASK))
13912     {
13913       return;
13914     }
13915
13916     if (!setup.editor.use_template_for_new_levels &&
13917         level.changed &&
13918         !Request("Discard level and use empty level?", REQ_ASK))
13919     {
13920       return;
13921     }
13922
13923     LoadLevel(level_nr);
13924     LoadScore(level_nr);
13925
13926     TapeErase();
13927
13928     ResetUndoBuffer();
13929     DrawEditModeWindow();
13930   }
13931   else if (type_id == ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS)
13932   {
13933     SetAutomaticNumberOfGemsNeeded();
13934   }
13935
13936   // do not mark level as modified for certain non-level-changing gadgets
13937   if ((type_id >= ED_CHECKBUTTON_ID_LEVELSET_FIRST &&
13938        type_id <= ED_CHECKBUTTON_ID_LEVELSET_LAST) ||
13939       (type_id >= ED_CHECKBUTTON_ID_EDITOR_FIRST &&
13940        type_id <= ED_CHECKBUTTON_ID_EDITOR_LAST &&
13941        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE_2) ||
13942       type_id == ED_CHECKBUTTON_ID_STICK_ELEMENT)
13943     return;
13944
13945   level.changed = TRUE;
13946 }
13947
13948 static void HandleControlButtons(struct GadgetInfo *gi)
13949 {
13950   static int last_level_drawing_function = GADGET_ID_SINGLE_ITEMS;
13951   static int last_edit_mode = ED_MODE_DRAWING;
13952   static int last_custom_copy_mode = -1;
13953   static int last_button = 0;
13954   int id = gi->custom_id;
13955   int button = gi->event.button;
13956   int step = BUTTON_STEPSIZE(button);
13957   int new_element = BUTTON_ELEMENT(button);
13958   int last_properties_element = properties_element;
13959   int x, y;
13960
13961   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
13962     DrawLevelText(0, 0, 0, TEXT_END);
13963
13964   if (id < ED_NUM_CTRL1_BUTTONS &&
13965       id != GADGET_ID_SINGLE_ITEMS &&
13966       id != GADGET_ID_PICK_ELEMENT &&
13967       edit_mode != ED_MODE_DRAWING &&
13968       drawing_function != GADGET_ID_PICK_ELEMENT &&
13969       !(GetKeyModState() & KMOD_Control))
13970     ChangeEditModeWindow(ED_MODE_DRAWING);
13971
13972   // element copy mode active, but no element button pressed => deactivate
13973   if (last_custom_copy_mode != -1 && id < ED_NUM_CTRL_BUTTONS)
13974     last_custom_copy_mode = -1;
13975
13976   // when showing palette on element buttons, change element of button used
13977   if (editor.palette.show_on_element_buttons &&
13978       id >= GADGET_ID_ELEMENT_LEFT && id <= GADGET_ID_ELEMENT_RIGHT)
13979   {
13980     last_button = id - GADGET_ID_ELEMENT_LEFT + 1;
13981
13982     id = GADGET_ID_PALETTE;
13983   }
13984
13985   switch (id)
13986   {
13987     case GADGET_ID_SCROLL_LEFT:
13988       if (level_xpos >= 0)
13989       {
13990         if (lev_fieldx < ed_fieldx - 2)
13991           break;
13992
13993         level_xpos -= step;
13994         if (level_xpos < -1)
13995           level_xpos = -1;
13996         if (button == 1)
13997           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
13998         else
13999           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14000
14001         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
14002                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
14003       }
14004       break;
14005
14006     case GADGET_ID_SCROLL_RIGHT:
14007       if (level_xpos <= lev_fieldx - ed_fieldx)
14008       {
14009         if (lev_fieldx < ed_fieldx - 2)
14010           break;
14011
14012         level_xpos += step;
14013         if (level_xpos > lev_fieldx - ed_fieldx + 1)
14014           level_xpos = lev_fieldx - ed_fieldx + 1;
14015         if (button == 1)
14016           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
14017         else
14018           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14019
14020         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
14021                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
14022       }
14023       break;
14024
14025     case GADGET_ID_SCROLL_UP:
14026       if (level_ypos >= 0)
14027       {
14028         if (lev_fieldy < ed_fieldy - 2)
14029           break;
14030
14031         level_ypos -= step;
14032         if (level_ypos < -1)
14033           level_ypos = -1;
14034         if (button == 1)
14035           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
14036         else
14037           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14038
14039         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
14040                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
14041       }
14042       break;
14043
14044     case GADGET_ID_SCROLL_DOWN:
14045       if (level_ypos <= lev_fieldy - ed_fieldy)
14046       {
14047         if (lev_fieldy < ed_fieldy - 2)
14048           break;
14049
14050         level_ypos += step;
14051         if (level_ypos > lev_fieldy - ed_fieldy + 1)
14052           level_ypos = lev_fieldy - ed_fieldy + 1;
14053         if (button == 1)
14054           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_UP);
14055         else
14056           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14057
14058         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
14059                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
14060       }
14061       break;
14062
14063     case GADGET_ID_SCROLL_HORIZONTAL:
14064       level_xpos = gi->event.item_position - 1;
14065
14066       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14067       BackToFront();
14068
14069       break;
14070
14071     case GADGET_ID_SCROLL_VERTICAL:
14072       level_ypos = gi->event.item_position - 1;
14073
14074       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14075       BackToFront();
14076
14077       break;
14078
14079     case GADGET_ID_SCROLL_LIST_UP:
14080     case GADGET_ID_SCROLL_LIST_DOWN:
14081     case GADGET_ID_SCROLL_LIST_VERTICAL:
14082       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
14083         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
14084       else
14085       {
14086         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
14087         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
14088
14089         if (element_shift < 0)
14090           element_shift = 0;
14091         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
14092           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
14093
14094         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14095                      GDI_SCROLLBAR_ITEM_POSITION,
14096                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14097       }
14098
14099       ModifyEditorElementList();
14100
14101       break;
14102
14103     case GADGET_ID_PROPERTIES:
14104       // always switch off element properties when they are already displayed
14105       last_properties_element = new_element;
14106     case GADGET_ID_ELEMENT_LEFT:
14107     case GADGET_ID_ELEMENT_MIDDLE:
14108     case GADGET_ID_ELEMENT_RIGHT:
14109       properties_element = (id == GADGET_ID_ELEMENT_LEFT   ? new_element1 :
14110                             id == GADGET_ID_ELEMENT_MIDDLE ? new_element2 :
14111                             id == GADGET_ID_ELEMENT_RIGHT  ? new_element3 :
14112                             new_element);
14113
14114       if (edit_mode != ED_MODE_PROPERTIES)
14115       {
14116         last_edit_mode = edit_mode;
14117
14118         ChangeEditModeWindow(ED_MODE_PROPERTIES);
14119
14120         last_level_drawing_function = drawing_function;
14121         ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
14122                       MB_LEFTBUTTON);
14123       }
14124       else if (properties_element != last_properties_element)
14125       {
14126         DrawEditModeWindow();
14127       }
14128       else
14129       {
14130         ChangeEditModeWindow(ED_MODE_DRAWING);
14131
14132         ClickOnGadget(level_editor_gadget[last_level_drawing_function],
14133                       MB_LEFTBUTTON);
14134       }
14135       break;
14136
14137     case GADGET_ID_PALETTE:
14138       if (edit_mode != ED_MODE_PALETTE)
14139       {
14140         last_edit_mode = edit_mode;
14141
14142         ChangeEditModeWindow(ED_MODE_PALETTE);
14143       }
14144       else
14145       {
14146         ChangeEditModeWindow(last_edit_mode);
14147       }
14148       break;
14149
14150     case GADGET_ID_WRAP_LEFT:
14151       WrapLevel(-step, 0);
14152       break;
14153
14154     case GADGET_ID_WRAP_RIGHT:
14155       WrapLevel(step, 0);
14156       break;
14157
14158     case GADGET_ID_WRAP_UP:
14159       WrapLevel(0, -step);
14160       break;
14161
14162     case GADGET_ID_WRAP_DOWN:
14163       WrapLevel(0, step);
14164       break;
14165
14166     case GADGET_ID_SINGLE_ITEMS:
14167     case GADGET_ID_CONNECTED_ITEMS:
14168     case GADGET_ID_LINE:
14169     case GADGET_ID_ARC:
14170     case GADGET_ID_TEXT:
14171     case GADGET_ID_RECTANGLE:
14172     case GADGET_ID_FILLED_BOX:
14173     case GADGET_ID_FLOOD_FILL:
14174     case GADGET_ID_GRAB_BRUSH:
14175     case GADGET_ID_PICK_ELEMENT:
14176       if (drawing_function != GADGET_ID_PICK_ELEMENT)
14177         last_drawing_function = drawing_function;
14178       drawing_function = id;
14179       draw_with_brush = FALSE;
14180       break;
14181
14182     case GADGET_ID_RANDOM_PLACEMENT:
14183       RandomPlacement(new_element);
14184       break;
14185
14186     case GADGET_ID_ZOOM:
14187       // zoom level editor tile size in or out (or reset to default size)
14188       ed_tilesize = (button == 1 ? ed_tilesize * 2 :
14189                      button == 2 ? ed_tilesize_default :
14190                      button == 3 ? ed_tilesize / 2 : ed_tilesize);
14191
14192       // when using touch device, cycle through all zoom tilesizes
14193       if (runtime.uses_touch_device && ed_tilesize > TILESIZE)
14194         ed_tilesize = MICRO_TILESIZE;
14195
14196       // limit zoom level by upper and lower bound
14197       ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
14198
14199       InitZoomLevelSettings(ed_tilesize);
14200
14201       if (edit_mode == ED_MODE_DRAWING)
14202       {
14203         DrawDrawingWindow();
14204
14205         // redraw zoom gadget info text
14206         PrintEditorGadgetInfoText(level_editor_gadget[id]);
14207       }
14208
14209       // save current editor zoom tilesize
14210       SaveSetup_AutoSetup();
14211
14212       break;
14213
14214     case GADGET_ID_CUSTOM_COPY_FROM:
14215     case GADGET_ID_CUSTOM_COPY_TO:
14216     case GADGET_ID_CUSTOM_EXCHANGE:
14217       last_custom_copy_mode = id;
14218       last_drawing_function = drawing_function;
14219       break;
14220
14221     case GADGET_ID_CUSTOM_COPY:
14222       CopyCustomElement(properties_element, -1, id);
14223       break;
14224
14225     case GADGET_ID_CUSTOM_PASTE:
14226       CopyCustomElement(-1, properties_element, id);
14227       break;
14228
14229     case GADGET_ID_UNDO:
14230       if (button < 0)   // keep button value (even if modifier keys are pressed)
14231         button = -button;
14232       else if (button == 1 && GetKeyModState() & (KMOD_Shift | KMOD_Control))
14233         button = 3;
14234
14235       if (button == 1 && undo_buffer_steps == 0)
14236       {
14237         Request("Undo buffer empty!", REQ_CONFIRM);
14238
14239         break;
14240       }
14241       else if (button == 2)
14242       {
14243         break;
14244       }
14245       else if (button == 3 && redo_buffer_steps == 0)
14246       {
14247         Request("Redo buffer empty!", REQ_CONFIRM);
14248
14249         break;
14250       }
14251
14252       if (edit_mode != ED_MODE_DRAWING)
14253         ChangeEditModeWindow(ED_MODE_DRAWING);
14254
14255       if (button == 1)
14256       {
14257         // undo
14258
14259         undo_buffer_position =
14260           (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
14261
14262         undo_buffer_steps--;
14263         redo_buffer_steps++;
14264       }
14265       else
14266       {
14267         // redo
14268
14269         undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
14270
14271         undo_buffer_steps++;
14272         redo_buffer_steps--;
14273       }
14274
14275       for (x = 0; x < lev_fieldx; x++)
14276         for (y = 0; y < lev_fieldy; y++)
14277           Tile[x][y] = UndoBuffer[undo_buffer_position][x][y];
14278
14279       // check if undo operation forces change of border style
14280       CheckLevelBorderElement(FALSE);
14281
14282       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14283
14284       break;
14285
14286     case GADGET_ID_INFO:
14287       if (edit_mode != ED_MODE_INFO)
14288       {
14289         last_edit_mode = edit_mode;
14290
14291         ChangeEditModeWindow(ED_MODE_INFO);
14292       }
14293       else
14294       {
14295         ChangeEditModeWindow(ED_MODE_DRAWING);
14296       }
14297       break;
14298
14299     case GADGET_ID_CLEAR:
14300       if (edit_mode != ED_MODE_DRAWING)
14301         ChangeEditModeWindow(ED_MODE_DRAWING);
14302
14303       for (x = 0; x < MAX_LEV_FIELDX; x++)
14304         for (y = 0; y < MAX_LEV_FIELDY; y++)
14305           Tile[x][y] = (button == 1 ? EL_EMPTY : new_element);
14306
14307       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
14308
14309       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
14310       break;
14311
14312     case GADGET_ID_SAVE:
14313     {
14314       // saving read-only levels into personal level set modifies global vars
14315       // "leveldir_current" and "level_nr"; restore them after saving level
14316       LevelDirTree *leveldir_former = leveldir_current;
14317       int level_nr_former = level_nr;
14318       char *level_filename;
14319       boolean new_level;
14320
14321       if (leveldir_current->readonly &&
14322           !PrepareSavingIntoPersonalLevelSet())
14323         break;
14324
14325       level_filename = getDefaultLevelFilename(level_nr);
14326       new_level = !fileExists(level_filename);
14327
14328       if (new_level ||
14329           Request("Save this level and kill the old?", REQ_ASK))
14330       {
14331         if (leveldir_former->readonly)
14332           ModifyLevelInfoForSavingIntoPersonalLevelSet(leveldir_former->name);
14333
14334         SetAutomaticNumberOfGemsNeeded();
14335
14336         CopyPlayfield(Tile, level.field);
14337         SaveLevel(level_nr);
14338
14339         level.changed = FALSE;
14340
14341         if (new_level)
14342         {
14343           char level_saved_msg[64];
14344
14345           if (leveldir_former->readonly)
14346             sprintf(level_saved_msg,
14347                     "Level saved as level %d into personal level set!",
14348                     level_nr);
14349           else
14350             strcpy(level_saved_msg, "Level saved!");
14351
14352           Request(level_saved_msg, REQ_CONFIRM);
14353         }
14354       }
14355
14356       // "cd" back to copied-from levelset (in case of saved read-only level)
14357       leveldir_current = leveldir_former;
14358       level_nr = level_nr_former;
14359
14360       break;
14361     }
14362
14363     case GADGET_ID_TEST:
14364       if (LevelChanged())
14365         level.game_version = GAME_VERSION_ACTUAL;
14366
14367       CopyPlayfield(level.field, TileBackup);
14368       CopyPlayfield(Tile, level.field);
14369
14370       CopyNativeLevel_RND_to_Native(&level);
14371
14372       UnmapLevelEditorGadgets();
14373       UndrawSpecialEditorDoor();
14374
14375       CloseDoor(DOOR_CLOSE_ALL);
14376
14377       // needed before playing if editor playfield area has different size
14378       ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
14379
14380       // redraw_mask = REDRAW_ALL;
14381
14382       level_editor_test_game = TRUE;
14383
14384       StartGameActions(FALSE, setup.autorecord, level.random_seed);
14385
14386       break;
14387
14388     case GADGET_ID_EXIT:
14389       RequestExitLevelEditor(TRUE, FALSE);  // if level has changed, ask user
14390       break;
14391
14392     default:
14393       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
14394           id <= GADGET_ID_ELEMENTLIST_LAST)
14395       {
14396         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
14397
14398         new_element = editor_elements[element_position + element_shift];
14399
14400         if (IS_EDITOR_CASCADE(new_element))
14401         {
14402           int i;
14403
14404           for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
14405           {
14406             int *cascade_element= &(*editor_elements_info[i].headline_list)[0];
14407             boolean *cascade_value=editor_elements_info[i].setup_cascade_value;
14408
14409             if (*cascade_element == new_element)
14410             {
14411               *cascade_element = EL_CASCADE_TOGGLE(*cascade_element);
14412               *cascade_value = IS_EDITOR_CASCADE_ACTIVE(*cascade_element);
14413
14414               // update element selection list
14415               ReinitializeElementList();
14416               ModifyEditorElementList();
14417
14418               // update cascading gadget info text
14419               PrintEditorGadgetInfoText(level_editor_gadget[id]);
14420
14421               // save current editor cascading state
14422               SaveSetup_EditorCascade();
14423
14424               break;
14425             }
14426           }
14427
14428           break;
14429         }
14430
14431         if (last_custom_copy_mode != -1)
14432         {
14433           if (CopyCustomElement(properties_element, new_element,
14434                                 last_custom_copy_mode))
14435           {
14436             ClickOnGadget(level_editor_gadget[last_drawing_function],
14437                           MB_LEFTBUTTON);
14438
14439             last_custom_copy_mode = -1;
14440           }
14441
14442           break;
14443         }
14444
14445         // change element of button used to show palette
14446         if (editor.palette.show_on_element_buttons)
14447           button = last_button;
14448
14449         PickDrawingElement(button, new_element);
14450
14451         if (!stick_element_properties_window &&
14452             drawing_function != GADGET_ID_PICK_ELEMENT &&
14453             !(GetKeyModState() & KMOD_Control))
14454         {
14455           properties_element = new_element;
14456           if (edit_mode == ED_MODE_PROPERTIES)
14457             DrawPropertiesWindow();
14458         }
14459
14460         if (drawing_function == GADGET_ID_PICK_ELEMENT)
14461           ClickOnGadget(level_editor_gadget[last_drawing_function],
14462                         MB_LEFTBUTTON);
14463
14464         if (!use_permanent_palette)
14465           ChangeEditModeWindow(last_edit_mode);
14466       }
14467 #ifdef DEBUG
14468       else if (gi->event.type == GD_EVENT_PRESSED)
14469         Debug("editor", "default: HandleControlButtons: GD_EVENT_PRESSED(%d)", id);
14470       else if (gi->event.type == GD_EVENT_RELEASED)
14471         Debug("editor", "default: HandleControlButtons: GD_EVENT_RELEASED(%d)", id);
14472       else if (gi->event.type == GD_EVENT_MOVING)
14473         Debug("editor", "default: HandleControlButtons: GD_EVENT_MOVING(%d)", id);
14474       else
14475         Debug("editor", "default: HandleControlButtons: ? (id == %d)", id);
14476 #endif
14477       break;
14478   }
14479 }
14480
14481 void HandleLevelEditorKeyInput(Key key)
14482 {
14483   char letter = getCharFromKey(key);
14484
14485   if (drawing_function == GADGET_ID_TEXT &&
14486       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
14487   {
14488     if (letter)
14489       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
14490     else if (key == KSYM_Delete || key == KSYM_BackSpace)
14491       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
14492     else if (key == KSYM_Return)
14493       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
14494     else if (key == KSYM_Escape)
14495       DrawLevelText(0, 0, 0, TEXT_END);
14496
14497     return;
14498   }
14499
14500   int id = GADGET_ID_NONE;
14501   int new_element_shift = element_shift;
14502   int step = ED_ELEMENTLIST_BUTTONS_VERT - 1;
14503   int button = MB_LEFTBUTTON;
14504   int i;
14505
14506   switch (key)
14507   {
14508     case KSYM_Left:
14509       id = GADGET_ID_SCROLL_LEFT;
14510       break;
14511     case KSYM_Right:
14512       id = GADGET_ID_SCROLL_RIGHT;
14513       break;
14514     case KSYM_Up:
14515       id = GADGET_ID_SCROLL_UP;
14516       break;
14517     case KSYM_Down:
14518       id = GADGET_ID_SCROLL_DOWN;
14519       break;
14520
14521     case KSYM_Page_Up:
14522     case KSYM_Page_Down:
14523       step *= (key == KSYM_Page_Up ? -1 : +1);
14524       element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
14525
14526       if (element_shift < 0)
14527         element_shift = 0;
14528       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
14529         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
14530
14531       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14532                    GDI_SCROLLBAR_ITEM_POSITION,
14533                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14534
14535       ModifyEditorElementList();
14536
14537       break;
14538
14539     case KSYM_Home:
14540     case KSYM_End:
14541       element_shift = (key == KSYM_Home ? 0 :
14542                        num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS);
14543
14544       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14545                    GDI_SCROLLBAR_ITEM_POSITION,
14546                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14547
14548       ModifyEditorElementList();
14549
14550       break;
14551
14552     case KSYM_Insert:
14553     case KSYM_Delete:
14554
14555       // this is needed to prevent interference with running "True X-Mouse"
14556       if (GetKeyModStateFromEvents() & KMOD_Control)
14557         break;
14558
14559       // check for last or next editor cascade block in element list
14560       for (i = 0; i < num_editor_elements; i++)
14561       {
14562         if ((key == KSYM_Insert && i == element_shift) ||
14563             (key == KSYM_Delete && new_element_shift > element_shift))
14564           break;
14565
14566         // jump to next cascade block (or to start of element list)
14567         if (i == 0 || IS_EDITOR_CASCADE(editor_elements[i]))
14568           new_element_shift = i;
14569       }
14570
14571       if (i < num_editor_elements)
14572         element_shift = new_element_shift;
14573
14574       if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
14575         element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
14576
14577       ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
14578                    GDI_SCROLLBAR_ITEM_POSITION,
14579                    element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
14580
14581       ModifyEditorElementList();
14582
14583       break;
14584
14585     case KSYM_Escape:
14586       if (edit_mode == ED_MODE_DRAWING)
14587         RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
14588       else if (edit_mode == ED_MODE_INFO)
14589         HandleControlButtons(level_editor_gadget[GADGET_ID_INFO]);
14590       else if (edit_mode == ED_MODE_PROPERTIES)
14591         HandleControlButtons(level_editor_gadget[GADGET_ID_PROPERTIES]);
14592       else if (edit_mode == ED_MODE_PALETTE)
14593         HandleControlButtons(level_editor_gadget[GADGET_ID_PALETTE]);
14594       else              // should never happen
14595         ChangeEditModeWindow(ED_MODE_DRAWING);
14596
14597       break;
14598
14599     default:
14600       break;
14601   }
14602
14603   if (id != GADGET_ID_NONE)
14604     ClickOnGadget(level_editor_gadget[id], button);
14605   else if (letter == '1' || letter == '?')
14606     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_LEFT], button);
14607   else if (letter == '2')
14608     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_MIDDLE], button);
14609   else if (letter == '3')
14610     ClickOnGadget(level_editor_gadget[GADGET_ID_ELEMENT_RIGHT], button);
14611   else if (letter == '.')
14612     ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
14613   else if (letter == 'U')
14614     ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
14615   else if (letter == '-' || key == KSYM_KP_Subtract)
14616     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 3);
14617   else if (letter == '0' || key == KSYM_KP_0)
14618     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 2);
14619   else if (letter == '+' || key == KSYM_KP_Add ||
14620            letter == '=')       // ("Shift-=" is "+" on US keyboards)
14621     ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 1);
14622   else if (key == KSYM_Return ||
14623            key == KSYM_space ||
14624            key == setup.shortcut.toggle_pause)
14625     ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
14626   else
14627     for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
14628       if (letter && letter == controlbutton_info[i].shortcut)
14629         if (!anyTextGadgetActive())
14630           ClickOnGadget(level_editor_gadget[i], button);
14631 }
14632
14633 static void HandleLevelEditorIdle_Properties(void)
14634 {
14635   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
14636   int x = editor.settings.element_graphic.x + element_border;
14637   int y = editor.settings.element_graphic.y + element_border;
14638   static DelayCounter action_delay = { 0 };
14639   int i;
14640
14641   action_delay.value = GameFrameDelay;
14642
14643   if (!DelayReached(&action_delay))
14644     return;
14645
14646   for (i = 0; i < ED_NUM_SELECTBOX; i++)
14647   {
14648     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[i].gadget_id];
14649
14650     if (gi->mapped && gi->active && gi->selectbox.open)
14651       return;
14652   }
14653
14654   DrawEditorElementAnimation(SX + x, SY + y);
14655
14656   redraw_mask |= REDRAW_FIELD;
14657
14658   FrameCounter++;       // increase animation frame counter
14659 }
14660
14661 static void HandleLevelEditorIdle_Drawing(void)
14662 {
14663   static boolean last_highlighted = FALSE;
14664   boolean highlighted = (GetKeyModState() & KMOD_Alt);
14665
14666   if (highlighted != last_highlighted)
14667   {
14668     DrawAreaElementHighlight(highlighted);
14669
14670     last_highlighted = highlighted;
14671
14672     redraw_mask |= REDRAW_FIELD;
14673   }
14674 }
14675
14676 void HandleLevelEditorIdle(void)
14677 {
14678   if (edit_mode == ED_MODE_PROPERTIES)
14679     HandleLevelEditorIdle_Properties();
14680   else if (edit_mode == ED_MODE_DRAWING)
14681     HandleLevelEditorIdle_Drawing();
14682 }
14683
14684 static void ClearEditorGadgetInfoText(void)
14685 {
14686   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
14687 }
14688
14689 void PrintEditorGadgetInfoText(struct GadgetInfo *gi)
14690 {
14691   char infotext[MAX_OUTPUT_LINESIZE + 1];
14692   int max_infotext_len = getMaxInfoTextLength();
14693
14694   if (gi == NULL || strlen(gi->info_text) == 0)
14695     return;
14696
14697   strncpy(infotext, gi->info_text, max_infotext_len);
14698   infotext[max_infotext_len] = '\0';
14699
14700   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
14701   {
14702     int key = controlbutton_info[gi->custom_id].shortcut;
14703
14704     if (key)
14705     {
14706       char shortcut[MAX_OUTPUT_LINESIZE + 1];
14707
14708       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)
14709         sprintf(shortcut, " ('.' or '%c')", key);
14710       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)
14711         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
14712       else if (gi->custom_id == GADGET_ID_TEST)
14713         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
14714       else if (gi->custom_id == GADGET_ID_UNDO)
14715         sprintf(shortcut, " ('%c/Shift-U')", key);
14716       else if (gi->custom_id == GADGET_ID_ZOOM)
14717         sprintf(shortcut, " ('%c', '0', '-')", key);
14718       else
14719         sprintf(shortcut, " ('%s%c')",
14720                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
14721
14722       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
14723         strcat(infotext, shortcut);
14724     }
14725   }
14726
14727   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, INFOTEXT_FONT);
14728 }
14729
14730 void HandleEditorGadgetInfoText(void *ptr)
14731 {
14732   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
14733
14734   if (game_status != GAME_MODE_EDITOR)
14735     return;
14736
14737   ClearEditorGadgetInfoText();
14738
14739   if (gi == NULL || gi->event.type == GD_EVENT_INFO_LEAVING)
14740     return;
14741
14742   // misuse this function to delete brush cursor, if needed
14743   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
14744     DeleteBrushFromCursor();
14745
14746   PrintEditorGadgetInfoText(gi);
14747 }
14748
14749 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
14750 {
14751   int id = gi->custom_id;
14752   int type_id = gi->custom_type_id;
14753   int sx = gi->event.x;
14754   int sy = gi->event.y;
14755   int lx = sx + level_xpos;
14756   int ly = sy + level_ypos;
14757   int min_sx = 0, min_sy = 0;
14758   int max_sx = gi->drawing.area_xsize - 1;
14759   int max_sy = gi->drawing.area_ysize - 1;
14760   int actual_drawing_function = drawing_function;
14761   int max_infotext_len = getMaxInfoTextLength();
14762   char infotext[MAX_OUTPUT_LINESIZE + 1];
14763
14764   infotext[0] = '\0';           // start with empty info text
14765
14766   // pressed Control key: simulate picking element
14767   if (GetKeyModState() & KMOD_Control)
14768     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
14769
14770   ClearEditorGadgetInfoText();
14771
14772   if (gi->event.type == GD_EVENT_INFO_LEAVING)
14773     return;
14774
14775   // make sure to stay inside drawing area boundaries
14776   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
14777   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
14778
14779   if (id == GADGET_ID_DRAWING_LEVEL)
14780   {
14781     if (button_status)
14782     {
14783       int min_lx = 0, min_ly = 0;
14784       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
14785
14786       // get positions inside level field
14787       lx = sx + level_xpos;
14788       ly = sy + level_ypos;
14789
14790       // make sure to stay inside level field boundaries
14791       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
14792       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
14793
14794       // correct drawing area positions accordingly
14795       sx = lx - level_xpos;
14796       sy = ly - level_ypos;
14797     }
14798
14799     if (IN_ED_FIELD(sx,sy) && IN_LEV_FIELD(lx, ly))
14800     {
14801       if (button_status)        // if (gi->state == GD_BUTTON_PRESSED)
14802       {
14803         static int start_lx = 0;
14804         static int start_ly = 0;
14805         char *text;
14806
14807         if (gi->event.type == GD_EVENT_PRESSED)
14808         {
14809           start_lx = lx;
14810           start_ly = ly;
14811         }
14812
14813         switch (actual_drawing_function)
14814         {
14815           case GADGET_ID_SINGLE_ITEMS:
14816             text = "Drawing single items";
14817             break;
14818           case GADGET_ID_CONNECTED_ITEMS:
14819             text = "Drawing connected items";
14820             break;
14821           case GADGET_ID_LINE:
14822             text = "Drawing line";
14823             break;
14824           case GADGET_ID_ARC:
14825             text = "Drawing arc";
14826             break;
14827           case GADGET_ID_TEXT:
14828             text = "Setting text cursor";
14829             break;
14830           case GADGET_ID_RECTANGLE:
14831             text = "Drawing rectangle";
14832             break;
14833           case GADGET_ID_FILLED_BOX:
14834             text = "Drawing filled box";
14835             break;
14836           case GADGET_ID_FLOOD_FILL:
14837             text = "Flood fill";
14838             break;
14839           case GADGET_ID_GRAB_BRUSH:
14840             text = "Grabbing brush";
14841             break;
14842           case GADGET_ID_PICK_ELEMENT:
14843             text = "Picking element";
14844             break;
14845
14846           default:
14847             text = "Drawing position";
14848             break;
14849         }
14850
14851         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
14852           sprintf(infotext, "%s: %d, %d", text, lx, ly);
14853         else
14854           sprintf(infotext, "%s: %d, %d", text,
14855                   ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
14856       }
14857       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
14858         strncpy(infotext, getElementInfoText(Tile[lx][ly]), max_infotext_len);
14859       else
14860         sprintf(infotext, "Level position: %d, %d", lx, ly);
14861     }
14862
14863     // misuse this function to draw brush cursor, if needed
14864     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
14865     {
14866       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
14867         CopyBrushToCursor(sx, sy);
14868       else
14869         DeleteBrushFromCursor();
14870     }
14871
14872     if (!draw_with_brush)
14873       UpdateBrushPosition(sx, sy);
14874   }
14875   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
14876   {
14877     int pos = sx * drawingarea_info[type_id].area_ysize + sy;
14878     int element = drawingarea_info[type_id].value[pos];
14879
14880     strncpy(infotext, getElementInfoText(element), max_infotext_len);
14881   }
14882   else
14883   {
14884     if (id == GADGET_ID_CUSTOM_CONTENT)
14885       sprintf(infotext, "custom element content position: %d, %d", sx, sy);
14886     else if (id == GADGET_ID_GROUP_CONTENT)
14887       sprintf(infotext, "group element position: %d", sx + 1);
14888     else if (id >= GADGET_ID_YAMYAM_CONTENT_0 &&
14889              id <= GADGET_ID_YAMYAM_CONTENT_7)
14890       sprintf(infotext, "content area %d position: %d, %d",
14891               id - GADGET_ID_YAMYAM_CONTENT_0 + 1, sx, sy);
14892     else if (id >= GADGET_ID_MAGIC_BALL_CONTENT_0 &&
14893              id <= GADGET_ID_MAGIC_BALL_CONTENT_7)
14894       sprintf(infotext, "content area %d position: %d, %d",
14895               id - GADGET_ID_MAGIC_BALL_CONTENT_0 + 1, sx, sy);
14896     else if (id == GADGET_ID_ANDROID_CONTENT)
14897       sprintf(infotext, "android element position: %d", sx + 1);
14898     else if (drawingarea_info[type_id].infotext != NULL)
14899       strcpy(infotext, drawingarea_info[type_id].infotext);
14900   }
14901
14902   infotext[max_infotext_len] = '\0';
14903
14904   if (strlen(infotext) > 0)
14905     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, INFOTEXT_FONT, infotext);
14906 }
14907
14908 void RequestExitLevelEditor(boolean ask_if_level_has_changed,
14909                             boolean quick_quit)
14910 {
14911   if (!ask_if_level_has_changed ||
14912       !LevelChanged() ||
14913       Request("Level has changed! Exit without saving?",
14914               REQ_ASK | REQ_STAY_OPEN))
14915   {
14916     struct RectWithBorder *vp_door_1 = &viewport.door_1[GAME_MODE_MAIN];
14917     struct RectWithBorder *vp_door_2 = &viewport.door_2[GAME_MODE_MAIN];
14918
14919     // draw normal door
14920     UndrawSpecialEditorDoor();
14921
14922     // use door animation if door 1 viewport is unchanged and contains toolbox
14923     if (useEditorDoorAnimation())
14924       CloseDoor(DOOR_CLOSE_1 | DOOR_FORCE_ANIM);
14925
14926     // close editor doors if viewport definition is the same as in main menu
14927     if (vp_door_1->x      == DX     &&
14928         vp_door_1->y      == DY     &&
14929         vp_door_1->width  == DXSIZE &&
14930         vp_door_1->height == DYSIZE &&
14931         vp_door_2->x      == VX     &&
14932         vp_door_2->y      == VY     &&
14933         vp_door_2->width  == VXSIZE &&
14934         vp_door_2->height == VYSIZE)
14935       CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
14936     else
14937       SetDoorState(DOOR_CLOSE_2);
14938
14939     BackToFront();
14940
14941     if (quick_quit)
14942       FadeSkipNextFadeIn();
14943
14944     SetGameStatus(GAME_MODE_MAIN);
14945
14946     DrawMainMenu();
14947   }
14948   else
14949   {
14950     if (!global.use_envelope_request)
14951     {
14952       CloseDoor(DOOR_CLOSE_1);
14953       OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
14954     }
14955   }
14956 }