src/editor.c

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