src/editor.c

   1 /***********************************************************
   2 * Rocks'n'Diamonds -- McDuffin Strikes Back!               *
   3 *----------------------------------------------------------*
   4 * (c) 1995-2002 Artsoft Entertainment                      *
   5 *               Holger Schemel                             *
   6 *               Detmolder Strasse 189                      *
   7 *               33604 Bielefeld                            *
   8 *               Germany                                    *
   9 *               e-mail: info@artsoft.org                   *
  10 *----------------------------------------------------------*
  11 * editor.c                                                 *
  12 ***********************************************************/
  13
  14 #include <math.h>
  15
  16 #include "libgame/libgame.h"
  17
  18 #include "editor.h"
  19 #include "screens.h"
  20 #include "tools.h"
  21 #include "files.h"
  22 #include "game.h"
  23 #include "tape.h"
  24
  25 /* positions in the level editor */
  26 #define ED_WIN_MB_LEFT_XPOS             6
  27 #define ED_WIN_MB_LEFT_YPOS             258
  28 #define ED_WIN_MB_MIDDLE_XPOS           42
  29 #define ED_WIN_MB_MIDDLE_YPOS           ED_WIN_MB_LEFT_YPOS
  30 #define ED_WIN_MB_RIGHT_XPOS            78
  31 #define ED_WIN_MB_RIGHT_YPOS            ED_WIN_MB_LEFT_YPOS
  32
  33 /* other constants for the editor */
  34 #define ED_SCROLL_NO                    0
  35 #define ED_SCROLL_LEFT                  1
  36 #define ED_SCROLL_RIGHT                 2
  37 #define ED_SCROLL_UP                    4
  38 #define ED_SCROLL_DOWN                  8
  39
  40 /* screens in the level editor */
  41 #define ED_MODE_DRAWING                 0
  42 #define ED_MODE_INFO                    1
  43 #define ED_MODE_PROPERTIES              2
  44
  45 /* how many steps can be cancelled */
  46 #define NUM_UNDO_STEPS                  (10 + 1)
  47
  48 /* values for elements with score */
  49 #define MIN_SCORE                       0
  50 #define MAX_SCORE                       255
  51
  52 /* values for the control window */
  53 #define ED_CTRL_BUTTONS_GFX_YPOS        236
  54 #define ED_CTRL_BUTTONS_ALT_GFX_YPOS    142
  55
  56 #define ED_CTRL1_BUTTONS_HORIZ          4
  57 #define ED_CTRL1_BUTTONS_VERT           4
  58 #define ED_CTRL1_BUTTON_XSIZE           22
  59 #define ED_CTRL1_BUTTON_YSIZE           22
  60 #define ED_CTRL1_BUTTONS_XPOS           6
  61 #define ED_CTRL1_BUTTONS_YPOS           6
  62 #define ED_CTRL2_BUTTONS_HORIZ          3
  63 #define ED_CTRL2_BUTTONS_VERT           2
  64 #define ED_CTRL2_BUTTON_XSIZE           30
  65 #define ED_CTRL2_BUTTON_YSIZE           20
  66 #define ED_CTRL2_BUTTONS_XPOS           5
  67 #define ED_CTRL2_BUTTONS_YPOS           99
  68 #define ED_NUM_CTRL1_BUTTONS   (ED_CTRL1_BUTTONS_HORIZ * ED_CTRL1_BUTTONS_VERT)
  69 #define ED_NUM_CTRL2_BUTTONS   (ED_CTRL2_BUTTONS_HORIZ * ED_CTRL2_BUTTONS_VERT)
  70 #define ED_NUM_CTRL_BUTTONS    (ED_NUM_CTRL1_BUTTONS + ED_NUM_CTRL2_BUTTONS)
  71
  72 /* values for the element list */
  73 #define ED_ELEMENTLIST_XPOS             5
  74 #define ED_ELEMENTLIST_YPOS             30
  75 #define ED_ELEMENTLIST_XSIZE            20
  76 #define ED_ELEMENTLIST_YSIZE            20
  77 #define ED_ELEMENTLIST_BUTTONS_HORIZ    4
  78 #define ED_ELEMENTLIST_BUTTONS_VERT     11
  79 #define ED_NUM_ELEMENTLIST_BUTTONS      (ED_ELEMENTLIST_BUTTONS_HORIZ * \
  80                                          ED_ELEMENTLIST_BUTTONS_VERT)
  81
  82 /* values for the setting windows */
  83 #define ED_SETTINGS_XPOS                (MINI_TILEX + 8)
  84 #define ED_SETTINGS2_XPOS               MINI_TILEX
  85 #define ED_SETTINGS_YPOS                MINI_TILEY
  86 #define ED_SETTINGS2_YPOS               (ED_SETTINGS_YPOS + 12 * TILEY - 2)
  87
  88 /* values for counter gadgets */
  89 #define ED_COUNT_ELEM_SCORE_XPOS        ED_SETTINGS_XPOS
  90 #define ED_COUNT_ELEM_SCORE_YPOS        (14 * MINI_TILEY)
  91 #define ED_COUNT_ELEM_CONTENT_XPOS      ED_SETTINGS_XPOS
  92 #define ED_COUNT_ELEM_CONTENT_YPOS      (19 * MINI_TILEY)
  93
  94 #define ED_COUNTER_YSTART               (ED_SETTINGS_YPOS + 2 * TILEY)
  95 #define ED_COUNTER_YDISTANCE            (3 * MINI_TILEY)
  96 #define ED_COUNTER_YPOS(n)              (ED_COUNTER_YSTART + \
  97                                          n * ED_COUNTER_YDISTANCE)
  98 #define ED_COUNTER2_YPOS(n)             (ED_COUNTER_YSTART + \
  99                                          n * ED_COUNTER_YDISTANCE - 2)
 100 /* standard distances */
 101 #define ED_BORDER_SIZE                  3
 102 #define ED_GADGET_DISTANCE              2
 103
 104 /* values for element content drawing areas */
 105 #define ED_AREA_ELEM_CONTENT_XPOS       ( 2 * MINI_TILEX)
 106 #define ED_AREA_ELEM_CONTENT_YPOS       (22 * MINI_TILEY)
 107
 108 /* values for random placement background drawing area */
 109 #define ED_AREA_RANDOM_BACKGROUND_XPOS  (29 * MINI_TILEX)
 110 #define ED_AREA_RANDOM_BACKGROUND_YPOS  (31 * MINI_TILEY)
 111
 112 /* values for scrolling gadgets for drawing area */
 113 #define ED_SCROLLBUTTON_XPOS            24
 114 #define ED_SCROLLBUTTON_YPOS            0
 115 #define ED_SCROLLBAR_XPOS               24
 116 #define ED_SCROLLBAR_YPOS               64
 117
 118 #define ED_SCROLLBUTTON_XSIZE           16
 119 #define ED_SCROLLBUTTON_YSIZE           16
 120
 121 #define ED_SCROLL_UP_XPOS               (SXSIZE - ED_SCROLLBUTTON_XSIZE)
 122 #define ED_SCROLL_UP_YPOS               (0)
 123 #define ED_SCROLL_DOWN_XPOS             ED_SCROLL_UP_XPOS
 124 #define ED_SCROLL_DOWN_YPOS             (SYSIZE - 3 * ED_SCROLLBUTTON_YSIZE)
 125 #define ED_SCROLL_LEFT_XPOS             (0)
 126 #define ED_SCROLL_LEFT_YPOS             (SYSIZE - 2 * ED_SCROLLBUTTON_YSIZE)
 127 #define ED_SCROLL_RIGHT_XPOS            (SXSIZE - 2 * ED_SCROLLBUTTON_XSIZE)
 128 #define ED_SCROLL_RIGHT_YPOS            ED_SCROLL_LEFT_YPOS
 129 #define ED_SCROLL_HORIZONTAL_XPOS (ED_SCROLL_LEFT_XPOS + ED_SCROLLBUTTON_XSIZE)
 130 #define ED_SCROLL_HORIZONTAL_YPOS       ED_SCROLL_LEFT_YPOS
 131 #define ED_SCROLL_HORIZONTAL_XSIZE      (SXSIZE - 3 * ED_SCROLLBUTTON_XSIZE)
 132 #define ED_SCROLL_HORIZONTAL_YSIZE      ED_SCROLLBUTTON_YSIZE
 133 #define ED_SCROLL_VERTICAL_XPOS         ED_SCROLL_UP_XPOS
 134 #define ED_SCROLL_VERTICAL_YPOS   (ED_SCROLL_UP_YPOS + ED_SCROLLBUTTON_YSIZE)
 135 #define ED_SCROLL_VERTICAL_XSIZE        ED_SCROLLBUTTON_XSIZE
 136 #define ED_SCROLL_VERTICAL_YSIZE        (SYSIZE - 4 * ED_SCROLLBUTTON_YSIZE)
 137
 138 /* values for scrolling gadgets for element list */
 139 #define ED_SCROLLBUTTON2_XPOS           50
 140 #define ED_SCROLLBUTTON2_YPOS           0
 141 #define ED_SCROLLBAR2_XPOS              50
 142 #define ED_SCROLLBAR2_YPOS              20
 143
 144 #define ED_SCROLLBUTTON2_XSIZE          10
 145 #define ED_SCROLLBUTTON2_YSIZE          10
 146
 147 #define ED_SCROLL2_UP_XPOS              85
 148 #define ED_SCROLL2_UP_YPOS              30
 149 #define ED_SCROLL2_DOWN_XPOS            ED_SCROLL2_UP_XPOS
 150 #define ED_SCROLL2_DOWN_YPOS            (ED_SCROLL2_UP_YPOS + \
 151                                          ED_ELEMENTLIST_BUTTONS_VERT * \
 152                                          ED_ELEMENTLIST_YSIZE - \
 153                                          ED_SCROLLBUTTON2_YSIZE)
 154 #define ED_SCROLL2_VERTICAL_XPOS        ED_SCROLL2_UP_XPOS
 155 #define ED_SCROLL2_VERTICAL_YPOS        (ED_SCROLL2_UP_YPOS + \
 156                                          ED_SCROLLBUTTON2_YSIZE)
 157 #define ED_SCROLL2_VERTICAL_XSIZE       ED_SCROLLBUTTON2_XSIZE
 158 #define ED_SCROLL2_VERTICAL_YSIZE       (ED_ELEMENTLIST_BUTTONS_VERT * \
 159                                          ED_ELEMENTLIST_YSIZE - \
 160                                          2 * ED_SCROLLBUTTON2_YSIZE)
 161
 162 /* values for checkbutton gadgets */
 163 #define ED_CHECKBUTTON_XSIZE            ED_BUTTON_COUNT_XSIZE
 164 #define ED_CHECKBUTTON_YSIZE            ED_BUTTON_COUNT_YSIZE
 165 #define ED_CHECKBUTTON_UNCHECKED_XPOS   ED_BUTTON_MINUS_XPOS
 166 #define ED_CHECKBUTTON_CHECKED_XPOS     ED_BUTTON_PLUS_XPOS
 167 #define ED_CHECKBUTTON_YPOS             (ED_BUTTON_MINUS_YPOS + 22)
 168 #define ED_RADIOBUTTON_YPOS             (ED_BUTTON_MINUS_YPOS + 44)
 169 #define ED_STICKYBUTTON_YPOS            (ED_BUTTON_MINUS_YPOS + 66)
 170
 171 /* some positions in the editor control window */
 172 #define ED_BUTTON_ELEM_XPOS     6
 173 #define ED_BUTTON_ELEM_YPOS     30
 174 #define ED_BUTTON_ELEM_XSIZE    22
 175 #define ED_BUTTON_ELEM_YSIZE    22
 176
 177 /* some values for text input and counter gadgets */
 178 #define ED_BUTTON_COUNT_YPOS    60
 179 #define ED_BUTTON_COUNT_XSIZE   20
 180 #define ED_BUTTON_COUNT_YSIZE   20
 181 #define ED_WIN_COUNT_XPOS       (2 + ED_BUTTON_COUNT_XSIZE + 2)
 182 #define ED_WIN_COUNT_YPOS       ED_BUTTON_COUNT_YPOS
 183 #define ED_WIN_COUNT_XSIZE      52
 184 #define ED_WIN_COUNT_YSIZE      ED_BUTTON_COUNT_YSIZE
 185 #define ED_WIN_COUNT2_XPOS      27
 186 #define ED_WIN_COUNT2_YPOS      3
 187 #define ED_WIN_COUNT2_XSIZE     46
 188 #define ED_WIN_COUNT2_YSIZE     ED_BUTTON_COUNT_YSIZE
 189
 190 #define ED_BUTTON_MINUS_XPOS    2
 191 #define ED_BUTTON_MINUS_YPOS    ED_BUTTON_COUNT_YPOS
 192 #define ED_BUTTON_MINUS_XSIZE   ED_BUTTON_COUNT_XSIZE
 193 #define ED_BUTTON_MINUS_YSIZE   ED_BUTTON_COUNT_YSIZE
 194 #define ED_BUTTON_PLUS_XPOS     (ED_WIN_COUNT_XPOS + ED_WIN_COUNT_XSIZE + 2)
 195 #define ED_BUTTON_PLUS_YPOS     ED_BUTTON_COUNT_YPOS
 196 #define ED_BUTTON_PLUS_XSIZE    ED_BUTTON_COUNT_XSIZE
 197 #define ED_BUTTON_PLUS_YSIZE    ED_BUTTON_COUNT_YSIZE
 198
 199 /* editor gadget identifiers */
 200
 201 /* drawing toolbox buttons */
 202 #define GADGET_ID_NONE                  -1
 203 #define GADGET_ID_SINGLE_ITEMS          0
 204 #define GADGET_ID_CONNECTED_ITEMS       1
 205 #define GADGET_ID_LINE                  2
 206 #define GADGET_ID_ARC                   3
 207 #define GADGET_ID_RECTANGLE             4
 208 #define GADGET_ID_FILLED_BOX            5
 209 #define GADGET_ID_WRAP_UP               6
 210 #define GADGET_ID_TEXT                  7
 211 #define GADGET_ID_FLOOD_FILL            8
 212 #define GADGET_ID_WRAP_LEFT             9
 213 #define GADGET_ID_PROPERTIES            10
 214 #define GADGET_ID_WRAP_RIGHT            11
 215 #define GADGET_ID_RANDOM_PLACEMENT      12
 216 #define GADGET_ID_GRAB_BRUSH            13
 217 #define GADGET_ID_WRAP_DOWN             14
 218 #define GADGET_ID_PICK_ELEMENT          15
 219 #define GADGET_ID_UNDO                  16
 220 #define GADGET_ID_INFO                  17
 221 #define GADGET_ID_SAVE                  18
 222 #define GADGET_ID_CLEAR                 19
 223 #define GADGET_ID_TEST                  20
 224 #define GADGET_ID_EXIT                  21
 225
 226 /* counter button identifiers */
 227 #define GADGET_ID_ELEM_SCORE_DOWN       22
 228 #define GADGET_ID_ELEM_SCORE_TEXT       23
 229 #define GADGET_ID_ELEM_SCORE_UP         24
 230 #define GADGET_ID_ELEM_CONTENT_DOWN     25
 231 #define GADGET_ID_ELEM_CONTENT_TEXT     26
 232 #define GADGET_ID_ELEM_CONTENT_UP       27
 233 #define GADGET_ID_LEVEL_XSIZE_DOWN      28
 234 #define GADGET_ID_LEVEL_XSIZE_TEXT      29
 235 #define GADGET_ID_LEVEL_XSIZE_UP        30
 236 #define GADGET_ID_LEVEL_YSIZE_DOWN      31
 237 #define GADGET_ID_LEVEL_YSIZE_TEXT      32
 238 #define GADGET_ID_LEVEL_YSIZE_UP        33
 239 #define GADGET_ID_LEVEL_RANDOM_DOWN     34
 240 #define GADGET_ID_LEVEL_RANDOM_TEXT     35
 241 #define GADGET_ID_LEVEL_RANDOM_UP       36
 242 #define GADGET_ID_LEVEL_COLLECT_DOWN    37
 243 #define GADGET_ID_LEVEL_COLLECT_TEXT    38
 244 #define GADGET_ID_LEVEL_COLLECT_UP      39
 245 #define GADGET_ID_LEVEL_TIMELIMIT_DOWN  40
 246 #define GADGET_ID_LEVEL_TIMELIMIT_TEXT  41
 247 #define GADGET_ID_LEVEL_TIMELIMIT_UP    42
 248 #define GADGET_ID_LEVEL_TIMESCORE_DOWN  43
 249 #define GADGET_ID_LEVEL_TIMESCORE_TEXT  44
 250 #define GADGET_ID_LEVEL_TIMESCORE_UP    45
 251 #define GADGET_ID_SELECT_LEVEL_DOWN     46
 252 #define GADGET_ID_SELECT_LEVEL_TEXT     47
 253 #define GADGET_ID_SELECT_LEVEL_UP       48
 254
 255 /* drawing area identifiers */
 256 #define GADGET_ID_DRAWING_LEVEL         49
 257 #define GADGET_ID_ELEM_CONTENT_0        50
 258 #define GADGET_ID_ELEM_CONTENT_1        51
 259 #define GADGET_ID_ELEM_CONTENT_2        52
 260 #define GADGET_ID_ELEM_CONTENT_3        53
 261 #define GADGET_ID_ELEM_CONTENT_4        54
 262 #define GADGET_ID_ELEM_CONTENT_5        55
 263 #define GADGET_ID_ELEM_CONTENT_6        56
 264 #define GADGET_ID_ELEM_CONTENT_7        57
 265 #define GADGET_ID_AMOEBA_CONTENT        58
 266 #define GADGET_ID_RANDOM_BACKGROUND     59
 267
 268 /* text input identifiers */
 269 #define GADGET_ID_LEVEL_NAME            60
 270 #define GADGET_ID_LEVEL_AUTHOR          61
 271
 272 /* gadgets for scrolling of drawing area */
 273 #define GADGET_ID_SCROLL_UP             62
 274 #define GADGET_ID_SCROLL_DOWN           63
 275 #define GADGET_ID_SCROLL_LEFT           64
 276 #define GADGET_ID_SCROLL_RIGHT          65
 277 #define GADGET_ID_SCROLL_HORIZONTAL     66
 278 #define GADGET_ID_SCROLL_VERTICAL       67
 279
 280 /* gadgets for scrolling element list */
 281 #define GADGET_ID_SCROLL_LIST_UP        68
 282 #define GADGET_ID_SCROLL_LIST_DOWN      69
 283 #define GADGET_ID_SCROLL_LIST_VERTICAL  70
 284
 285 /* buttons for level/element properties */
 286 #define GADGET_ID_RANDOM_PERCENTAGE     71
 287 #define GADGET_ID_RANDOM_QUANTITY       72
 288 #define GADGET_ID_RANDOM_RESTRICTED     73
 289 #define GADGET_ID_DOUBLE_SPEED          74
 290 #define GADGET_ID_GRAVITY               75
 291 #define GADGET_ID_STICK_ELEMENT         76
 292 #define GADGET_ID_EM_SLIPPERY_GEMS      77
 293 #define GADGET_ID_CUSTOM_INDESTRUCTIBLE 78
 294 #define GADGET_ID_CUSTOM_CAN_FALL       79
 295 #define GADGET_ID_CUSTOM_CAN_SMASH      80
 296 #define GADGET_ID_CUSTOM_PUSHABLE       81
 297 #define GADGET_ID_CUSTOM_SLIPPERY       82
 298
 299 /* gadgets for buttons in element list */
 300 #define GADGET_ID_ELEMENTLIST_FIRST     83
 301 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 302                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 303
 304 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 305
 306 /* radio button numbers */
 307 #define RADIO_NR_NONE                   0
 308 #define RADIO_NR_DRAWING_TOOLBOX        1
 309 #define RADIO_NR_RANDOM_ELEMENTS        2
 310
 311 /* values for counter gadgets */
 312 #define ED_COUNTER_ID_ELEM_SCORE        0
 313 #define ED_COUNTER_ID_ELEM_CONTENT      1
 314 #define ED_COUNTER_ID_LEVEL_XSIZE       2
 315 #define ED_COUNTER_ID_LEVEL_YSIZE       3
 316 #define ED_COUNTER_ID_LEVEL_COLLECT     4
 317 #define ED_COUNTER_ID_LEVEL_TIMELIMIT   5
 318 #define ED_COUNTER_ID_LEVEL_TIMESCORE   6
 319 #define ED_COUNTER_ID_LEVEL_RANDOM      7
 320 #define ED_COUNTER_ID_SELECT_LEVEL      8
 321
 322 #define ED_NUM_COUNTERBUTTONS           9
 323
 324 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 325 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM
 326
 327 /* values for scrollbutton gadgets */
 328 #define ED_SCROLLBUTTON_ID_AREA_UP      0
 329 #define ED_SCROLLBUTTON_ID_AREA_DOWN    1
 330 #define ED_SCROLLBUTTON_ID_AREA_LEFT    2
 331 #define ED_SCROLLBUTTON_ID_AREA_RIGHT   3
 332 #define ED_SCROLLBUTTON_ID_LIST_UP      4
 333 #define ED_SCROLLBUTTON_ID_LIST_DOWN    5
 334
 335 #define ED_NUM_SCROLLBUTTONS            6
 336
 337 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 338 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 339
 340 /* values for scrollbar gadgets */
 341 #define ED_SCROLLBAR_ID_AREA_HORIZONTAL 0
 342 #define ED_SCROLLBAR_ID_AREA_VERTICAL   1
 343 #define ED_SCROLLBAR_ID_LIST_VERTICAL   2
 344
 345 #define ED_NUM_SCROLLBARS               3
 346
 347 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 348 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 349
 350 /* values for text input gadgets */
 351 #define ED_TEXTINPUT_ID_LEVEL_NAME      0
 352 #define ED_TEXTINPUT_ID_LEVEL_AUTHOR    1
 353
 354 #define ED_NUM_TEXTINPUT                2
 355
 356 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 357 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 358
 359 /* values for checkbutton gadgets */
 360 #define ED_CHECKBUTTON_ID_DOUBLE_SPEED          0
 361 #define ED_CHECKBUTTON_ID_GRAVITY               1
 362 #define ED_CHECKBUTTON_ID_RANDOM_RESTRICTED     2
 363 #define ED_CHECKBUTTON_ID_STICK_ELEMENT         3
 364 #define ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS      4
 365 #define ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE 5
 366 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL       6
 367 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH      7
 368 #define ED_CHECKBUTTON_ID_CUSTOM_PUSHABLE       8
 369 #define ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY       9
 370
 371 #define ED_NUM_CHECKBUTTONS                     10
 372
 373 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_DOUBLE_SPEED
 374 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
 375
 376 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
 377 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY
 378
 379 /* values for radiobutton gadgets */
 380 #define ED_RADIOBUTTON_ID_PERCENTAGE    0
 381 #define ED_RADIOBUTTON_ID_QUANTITY      1
 382
 383 #define ED_NUM_RADIOBUTTONS             2
 384
 385 #define ED_RADIOBUTTON_ID_LEVEL_FIRST   ED_RADIOBUTTON_ID_PERCENTAGE
 386 #define ED_RADIOBUTTON_ID_LEVEL_LAST    ED_RADIOBUTTON_ID_QUANTITY
 387
 388 /* values for CopyLevelToUndoBuffer() */
 389 #define UNDO_IMMEDIATE                  0
 390 #define UNDO_ACCUMULATE                 1
 391
 392 /* values for ClearEditorGadgetInfoText() and HandleGadgetInfoText() */
 393 #define INFOTEXT_XPOS                   SX
 394 #define INFOTEXT_YPOS                   (SY + SYSIZE - MINI_TILEX + 2)
 395 #define INFOTEXT_XSIZE                  SXSIZE
 396 #define INFOTEXT_YSIZE                  MINI_TILEX
 397
 398 static struct
 399 {
 400   char shortcut;
 401   char *text;
 402 } control_info[ED_NUM_CTRL_BUTTONS] =
 403 {
 404   { 's',        "draw single items"             },
 405   { 'd',        "draw connected items"          },
 406   { 'l',        "draw lines"                    },
 407   { 'a',        "draw arcs"                     },
 408   { 'r',        "draw outline rectangles"       },
 409   { 'R',        "draw filled rectangles"        },
 410   { '\0',       "wrap (rotate) level up"        },
 411   { 't',        "enter text elements"           },
 412   { 'f',        "flood fill"                    },
 413   { '\0',       "wrap (rotate) level left"      },
 414   { '?',        "properties of drawing element" },
 415   { '\0',       "wrap (rotate) level right"     },
 416   { '\0',       "random element placement"      },
 417   { 'b',        "grab brush"                    },
 418   { '\0',       "wrap (rotate) level down"      },
 419   { ',',        "pick drawing element"          },
 420   { 'U',        "undo last operation"           },
 421   { 'I',        "level properties"              },
 422   { 'S',        "save level"                    },
 423   { 'C',        "clear level"                   },
 424   { 'T',        "test level"                    },
 425   { 'E',        "exit level editor"             }
 426 };
 427
 428 /* values for random placement */
 429 #define RANDOM_USE_PERCENTAGE           0
 430 #define RANDOM_USE_QUANTITY             1
 431
 432 static int random_placement_value = 10;
 433 static int random_placement_method = RANDOM_USE_QUANTITY;
 434 static int random_placement_background_element = EL_SAND;
 435 static boolean random_placement_background_restricted = FALSE;
 436 static boolean stick_element_properties_window = FALSE;
 437
 438 static struct
 439 {
 440   boolean indestructible;
 441   boolean can_fall;
 442   boolean can_smash;
 443   boolean pushable;
 444   boolean slippery;
 445 } custom_element_properties[NUM_CUSTOM_ELEMENTS];
 446
 447 static struct
 448 {
 449   int x, y;
 450   int min_value, max_value;
 451   int gadget_id_down, gadget_id_up;
 452   int gadget_id_text;
 453   int *value;
 454   char *infotext_above, *infotext_right;
 455 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
 456 {
 457   {
 458     ED_COUNT_ELEM_SCORE_XPOS,           ED_COUNT_ELEM_SCORE_YPOS,
 459     MIN_SCORE,                          MAX_SCORE,
 460     GADGET_ID_ELEM_SCORE_DOWN,          GADGET_ID_ELEM_SCORE_UP,
 461     GADGET_ID_ELEM_SCORE_TEXT,
 462     NULL,                               /* will be set when used */
 463     "element score",                    NULL
 464   },
 465   {
 466     ED_COUNT_ELEM_CONTENT_XPOS,         ED_COUNT_ELEM_CONTENT_YPOS,
 467     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
 468     GADGET_ID_ELEM_CONTENT_DOWN,        GADGET_ID_ELEM_CONTENT_UP,
 469     GADGET_ID_ELEM_CONTENT_TEXT,
 470     &level.num_yam_contents,
 471     "element content",                  NULL
 472   },
 473   {
 474     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(2),
 475     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
 476     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
 477     GADGET_ID_LEVEL_XSIZE_TEXT,
 478     &level.fieldx,
 479     "playfield size",                   "width",
 480   },
 481   {
 482     ED_SETTINGS_XPOS + 2 * DXSIZE,      ED_COUNTER_YPOS(2),
 483     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
 484     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
 485     GADGET_ID_LEVEL_YSIZE_TEXT,
 486     &level.fieldy,
 487     NULL,                               "height",
 488   },
 489   {
 490     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(3),
 491     0,                                  999,
 492     GADGET_ID_LEVEL_COLLECT_DOWN,       GADGET_ID_LEVEL_COLLECT_UP,
 493     GADGET_ID_LEVEL_COLLECT_TEXT,
 494     &level.gems_needed,
 495     "number of emeralds to collect",    NULL
 496   },
 497   {
 498     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 499     0,                                  999,
 500     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
 501     GADGET_ID_LEVEL_TIMELIMIT_TEXT,
 502     &level.time,
 503     "time available to solve level",    "(0 => no time limit)"
 504   },
 505   {
 506     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(5),
 507     0,                                  255,
 508     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
 509     GADGET_ID_LEVEL_TIMESCORE_TEXT,
 510     &level.score[SC_ZEITBONUS],
 511     "score for each 10 seconds left",   NULL
 512   },
 513   {
 514     ED_SETTINGS_XPOS,                   ED_COUNTER2_YPOS(8),
 515     1,                                  100,
 516     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
 517     GADGET_ID_LEVEL_RANDOM_TEXT,
 518     &random_placement_value,
 519     "random element placement",         "in"
 520   },
 521   {
 522     DX + 5 - SX,                        DY + 3 - SY,
 523     1,                                  100,
 524     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
 525     GADGET_ID_SELECT_LEVEL_TEXT,
 526     &level_nr,
 527     NULL,                               NULL
 528   }
 529 };
 530
 531 static struct
 532 {
 533   int x, y;
 534   int gadget_id;
 535   int size;
 536   char *value;
 537   char *infotext;
 538 } textinput_info[ED_NUM_TEXTINPUT] =
 539 {
 540   {
 541     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(0),
 542     GADGET_ID_LEVEL_NAME,
 543     MAX_LEVEL_NAME_LEN,
 544     level.name,
 545     "Title"
 546   },
 547   {
 548     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(1),
 549     GADGET_ID_LEVEL_AUTHOR,
 550     MAX_LEVEL_AUTHOR_LEN,
 551     level.author,
 552     "Author"
 553   }
 554 };
 555
 556 static struct
 557 {
 558   int xpos, ypos;
 559   int x, y;
 560   int gadget_id;
 561   char *infotext;
 562 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
 563 {
 564   {
 565     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 0 * ED_SCROLLBUTTON_YSIZE,
 566     ED_SCROLL_UP_XPOS,      ED_SCROLL_UP_YPOS,
 567     GADGET_ID_SCROLL_UP,
 568     "scroll level editing area up"
 569   },
 570   {
 571     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 1 * ED_SCROLLBUTTON_YSIZE,
 572     ED_SCROLL_DOWN_XPOS,    ED_SCROLL_DOWN_YPOS,
 573     GADGET_ID_SCROLL_DOWN,
 574     "scroll level editing area down"
 575   },
 576   {
 577     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 2 * ED_SCROLLBUTTON_YSIZE,
 578     ED_SCROLL_LEFT_XPOS,    ED_SCROLL_LEFT_YPOS,
 579     GADGET_ID_SCROLL_LEFT,
 580     "scroll level editing area left"
 581   },
 582   {
 583     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 3 * ED_SCROLLBUTTON_YSIZE,
 584     ED_SCROLL_RIGHT_XPOS,   ED_SCROLL_RIGHT_YPOS,
 585     GADGET_ID_SCROLL_RIGHT,
 586     "scroll level editing area right"
 587   },
 588   {
 589     ED_SCROLLBUTTON2_XPOS,  ED_SCROLLBUTTON2_YPOS + 0 * ED_SCROLLBUTTON2_YSIZE,
 590     ED_SCROLL2_UP_XPOS,     ED_SCROLL2_UP_YPOS,
 591     GADGET_ID_SCROLL_LIST_UP,
 592     "scroll element list up ('Page Up')"
 593   },
 594   {
 595     ED_SCROLLBUTTON2_XPOS,  ED_SCROLLBUTTON2_YPOS + 1 * ED_SCROLLBUTTON2_YSIZE,
 596     ED_SCROLL2_DOWN_XPOS,    ED_SCROLL2_DOWN_YPOS,
 597     GADGET_ID_SCROLL_LIST_DOWN,
 598     "scroll element list down ('Page Down')"
 599   }
 600 };
 601
 602 static struct
 603 {
 604   int xpos, ypos;
 605   int x, y;
 606   int width, height;
 607   int type;
 608   int gadget_id;
 609   char *infotext;
 610 } scrollbar_info[ED_NUM_SCROLLBARS] =
 611 {
 612   {
 613     ED_SCROLLBAR_XPOS,                  ED_SCROLLBAR_YPOS,
 614     SX + ED_SCROLL_HORIZONTAL_XPOS,     SY + ED_SCROLL_HORIZONTAL_YPOS,
 615     ED_SCROLL_HORIZONTAL_XSIZE,         ED_SCROLL_HORIZONTAL_YSIZE,
 616     GD_TYPE_SCROLLBAR_HORIZONTAL,
 617     GADGET_ID_SCROLL_HORIZONTAL,
 618     "scroll level editing area horizontally"
 619   },
 620   {
 621     ED_SCROLLBAR_XPOS,                  ED_SCROLLBAR_YPOS,
 622     SX + ED_SCROLL_VERTICAL_XPOS,       SY + ED_SCROLL_VERTICAL_YPOS,
 623     ED_SCROLL_VERTICAL_XSIZE,           ED_SCROLL_VERTICAL_YSIZE,
 624     GD_TYPE_SCROLLBAR_VERTICAL,
 625     GADGET_ID_SCROLL_VERTICAL,
 626     "scroll level editing area vertically"
 627   },
 628   {
 629     ED_SCROLLBAR2_XPOS,                 ED_SCROLLBAR2_YPOS,
 630     DX + ED_SCROLL2_VERTICAL_XPOS,      DY + ED_SCROLL2_VERTICAL_YPOS,
 631     ED_SCROLL2_VERTICAL_XSIZE,          ED_SCROLL2_VERTICAL_YSIZE,
 632     GD_TYPE_SCROLLBAR_VERTICAL,
 633     GADGET_ID_SCROLL_LIST_VERTICAL,
 634     "scroll element list vertically"
 635   }
 636 };
 637
 638 static struct
 639 {
 640   int x, y;
 641   int gadget_id;
 642   int radio_button_nr;
 643   int *value;
 644   int checked_value;
 645   char *text, *infotext;
 646 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
 647 {
 648   {
 649     ED_SETTINGS_XPOS + 160,             ED_COUNTER2_YPOS(8),
 650     GADGET_ID_RANDOM_PERCENTAGE,
 651     RADIO_NR_RANDOM_ELEMENTS,
 652     &random_placement_method,           RANDOM_USE_PERCENTAGE,
 653     "percentage",                       "use percentage for random elements"
 654   },
 655   {
 656     ED_SETTINGS_XPOS + 340,             ED_COUNTER2_YPOS(8),
 657     GADGET_ID_RANDOM_QUANTITY,
 658     RADIO_NR_RANDOM_ELEMENTS,
 659     &random_placement_method,           RANDOM_USE_QUANTITY,
 660     "quantity",                         "use quantity for random elements"
 661   }
 662 };
 663
 664 static struct
 665 {
 666   int x, y;
 667   int gadget_id;
 668   boolean *value;
 669   char *text, *infotext;
 670 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
 671 {
 672   {
 673     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(6) - MINI_TILEY,
 674     GADGET_ID_DOUBLE_SPEED,
 675     &level.double_speed,
 676     "double speed movement",            "set movement speed of player"
 677   },
 678   {
 679     ED_SETTINGS_XPOS + 340,             ED_COUNTER_YPOS(6) - MINI_TILEY,
 680     GADGET_ID_GRAVITY,
 681     &level.gravity,
 682     "gravity",                          "set level gravity"
 683   },
 684   {
 685     ED_SETTINGS_XPOS,                   ED_COUNTER2_YPOS(9) - MINI_TILEY,
 686     GADGET_ID_RANDOM_RESTRICTED,
 687     &random_placement_background_restricted,
 688     "restrict random placement to",     "set random placement restriction"
 689   },
 690   {
 691     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 692     GADGET_ID_STICK_ELEMENT,
 693     &stick_element_properties_window,
 694     "stick window to edit content",     "stick window to edit content"
 695   },
 696   {
 697     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 698     GADGET_ID_EM_SLIPPERY_GEMS,
 699     &level.em_slippery_gems,
 700     "slip down from certain flat walls","use EM style slipping behaviour"
 701   },
 702   {
 703     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 704     GADGET_ID_CUSTOM_INDESTRUCTIBLE,
 705     &custom_element_properties[0].indestructible,
 706     "indestructible",                   "element cannot be destroyed"
 707   },
 708   {
 709     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(5),
 710     GADGET_ID_CUSTOM_CAN_FALL,
 711     &custom_element_properties[0].can_fall,
 712     "can fall",                         "element can fall down"
 713   },
 714   {
 715     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(6),
 716     GADGET_ID_CUSTOM_CAN_SMASH,
 717     &custom_element_properties[0].can_smash,
 718     "can smash",                        "element can smash other elements"
 719   },
 720   {
 721     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(7),
 722     GADGET_ID_CUSTOM_PUSHABLE,
 723     &custom_element_properties[0].pushable,
 724     "pushable",                         "element can be pushed"
 725   },
 726   {
 727     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(8),
 728     GADGET_ID_CUSTOM_SLIPPERY,
 729     &custom_element_properties[0].slippery,
 730     "slippery",                         "other elements can fall down from it"
 731   }
 732 };
 733
 734 /* maximal size of level editor drawing area */
 735 #define MAX_ED_FIELDX           (2 * SCR_FIELDX)
 736 #define MAX_ED_FIELDY           (2 * SCR_FIELDY - 1)
 737
 738 /* actual size of level editor drawing area */
 739 static int ed_fieldx = MAX_ED_FIELDX - 1, ed_fieldy = MAX_ED_FIELDY - 1;
 740
 741 /* actual position of level editor drawing area in level playfield */
 742 static int level_xpos = -1, level_ypos = -1;
 743
 744 #define IN_ED_FIELD(x,y)  ((x)>=0 && (x)<ed_fieldx && (y)>=0 &&(y)<ed_fieldy)
 745
 746 /* drawing elements on the three mouse buttons */
 747 static int new_element1 = EL_WALL;
 748 static int new_element2 = EL_EMPTY;
 749 static int new_element3 = EL_SAND;
 750
 751 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
 752                                 (button) == 2 ? new_element2 : \
 753                                 (button) == 3 ? new_element3 : EL_EMPTY)
 754 #define BUTTON_STEPSIZE(button) ((button) == 1 ? 1 : (button) == 2 ? 5 : 10)
 755
 756 /* forward declaration for internal use */
 757 static void ModifyEditorCounter(int, int);
 758 static void ModifyEditorCounterLimits(int, int, int);
 759 static void DrawDrawingWindow();
 760 static void DrawLevelInfoWindow();
 761 static void DrawPropertiesWindow();
 762 static void CopyLevelToUndoBuffer(int);
 763 static void HandleDrawingAreas(struct GadgetInfo *);
 764 static void HandleCounterButtons(struct GadgetInfo *);
 765 static void HandleTextInputGadgets(struct GadgetInfo *);
 766 static void HandleRadiobuttons(struct GadgetInfo *);
 767 static void HandleCheckbuttons(struct GadgetInfo *);
 768 static void HandleControlButtons(struct GadgetInfo *);
 769 static void HandleDrawingAreaInfo(struct GadgetInfo *);
 770
 771 static struct GadgetInfo *level_editor_gadget[NUM_EDITOR_GADGETS];
 772
 773 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
 774 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
 775 static boolean draw_with_brush = FALSE;
 776 static int properties_element = 0;
 777
 778 static short ElementContent[MAX_ELEMENT_CONTENTS][3][3];
 779 static short FieldBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 780 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 781 static int undo_buffer_position = 0;
 782 static int undo_buffer_steps = 0;
 783
 784 static int edit_mode;
 785
 786 static int element_shift = 0;
 787
 788 static int editor_el_boulderdash[] =
 789 {
 790   EL_CHAR('B'),
 791   EL_CHAR('O'),
 792   EL_CHAR('U'),
 793   EL_CHAR('L'),
 794
 795   EL_CHAR('-'),
 796   EL_CHAR('D'),
 797   EL_CHAR('E'),
 798   EL_CHAR('R'),
 799
 800   EL_CHAR('D'),
 801   EL_CHAR('A'),
 802   EL_CHAR('S'),
 803   EL_CHAR('H'),
 804
 805   EL_PLAYER_1,
 806   EL_EMPTY,
 807   EL_SAND,
 808   EL_STEELWALL,
 809
 810   EL_BD_WALL,
 811   EL_BD_MAGIC_WALL,
 812   EL_EXIT_CLOSED,
 813   EL_EXIT_OPEN,
 814
 815   EL_BD_DIAMOND,
 816   EL_BD_BUTTERFLY_UP,
 817   EL_BD_FIREFLY_UP,
 818   EL_BD_ROCK,
 819
 820   EL_BD_BUTTERFLY_LEFT,
 821   EL_BD_FIREFLY_LEFT,
 822   EL_BD_BUTTERFLY_RIGHT,
 823   EL_BD_FIREFLY_RIGHT,
 824
 825   EL_BD_AMOEBA,
 826   EL_BD_BUTTERFLY_DOWN,
 827   EL_BD_FIREFLY_DOWN,
 828   EL_EMPTY,
 829 };
 830 static int num_editor_el_boulderdash = SIZEOF_ARRAY_INT(editor_el_boulderdash);
 831
 832 static int editor_el_emerald_mine[] =
 833 {
 834   EL_CHAR('E'),
 835   EL_CHAR('M'),
 836   EL_CHAR('E'),
 837   EL_CHAR('-'),
 838
 839   EL_CHAR('R'),
 840   EL_CHAR('A'),
 841   EL_CHAR('L'),
 842   EL_CHAR('D'),
 843
 844   EL_CHAR('M'),
 845   EL_CHAR('I'),
 846   EL_CHAR('N'),
 847   EL_CHAR('E'),
 848
 849   EL_PLAYER_1,
 850   EL_PLAYER_2,
 851   EL_PLAYER_3,
 852   EL_PLAYER_4,
 853
 854   EL_PLAYER_1,
 855   EL_EMPTY,
 856   EL_SAND,
 857   EL_ROCK,
 858
 859   EL_STEELWALL,
 860   EL_WALL,
 861   EL_WALL_CRUMBLED,
 862   EL_MAGIC_WALL,
 863
 864   EL_EMERALD,
 865   EL_DIAMOND,
 866   EL_NUT,
 867   EL_BOMB,
 868
 869   EL_WALL_EMERALD,
 870   EL_WALL_DIAMOND,
 871   EL_QUICKSAND_EMPTY,
 872   EL_QUICKSAND_FULL,
 873
 874   EL_DYNAMITE,
 875   EL_DYNAMITE_ACTIVE,
 876   EL_EXIT_CLOSED,
 877   EL_EXIT_OPEN,
 878
 879   EL_YAMYAM,
 880   EL_BUG_UP,
 881   EL_SPACESHIP_UP,
 882   EL_ROBOT,
 883
 884   EL_BUG_LEFT,
 885   EL_SPACESHIP_LEFT,
 886   EL_BUG_RIGHT,
 887   EL_SPACESHIP_RIGHT,
 888
 889   EL_ROBOT_WHEEL,
 890   EL_BUG_DOWN,
 891   EL_SPACESHIP_DOWN,
 892   EL_INVISIBLE_WALL,
 893
 894   EL_ACID_POOL_TOPLEFT,
 895   EL_ACID,
 896   EL_ACID_POOL_TOPRIGHT,
 897   EL_EMPTY,
 898
 899   EL_ACID_POOL_BOTTOMLEFT,
 900   EL_ACID_POOL_BOTTOM,
 901   EL_ACID_POOL_BOTTOMRIGHT,
 902   EL_EMPTY,
 903
 904   EL_AMOEBA_DROP,
 905   EL_AMOEBA_DEAD,
 906   EL_AMOEBA_WET,
 907   EL_AMOEBA_DRY,
 908
 909   EL_EM_KEY_1_FILE,
 910   EL_EM_KEY_2_FILE,
 911   EL_EM_KEY_3_FILE,
 912   EL_EM_KEY_4_FILE,
 913
 914   EL_EM_GATE_1,
 915   EL_EM_GATE_2,
 916   EL_EM_GATE_3,
 917   EL_EM_GATE_4,
 918
 919   EL_EM_GATE_1_GRAY,
 920   EL_EM_GATE_2_GRAY,
 921   EL_EM_GATE_3_GRAY,
 922   EL_EM_GATE_4_GRAY,
 923 };
 924 static int num_editor_el_emerald_mine = SIZEOF_ARRAY_INT(editor_el_emerald_mine);
 925
 926 static int editor_el_more[] =
 927 {
 928   EL_CHAR('M'),
 929   EL_CHAR('O'),
 930   EL_CHAR('R'),
 931   EL_CHAR('E'),
 932
 933   EL_KEY_1,
 934   EL_KEY_2,
 935   EL_KEY_3,
 936   EL_KEY_4,
 937
 938   EL_GATE_1,
 939   EL_GATE_2,
 940   EL_GATE_3,
 941   EL_GATE_4,
 942
 943   EL_GATE_1_GRAY,
 944   EL_GATE_2_GRAY,
 945   EL_GATE_3_GRAY,
 946   EL_GATE_4_GRAY,
 947
 948   EL_ARROW_LEFT,
 949   EL_ARROW_RIGHT,
 950   EL_ARROW_UP,
 951   EL_ARROW_DOWN,
 952
 953   EL_AMOEBA_FULL,
 954   EL_EMERALD_YELLOW,
 955   EL_EMERALD_RED,
 956   EL_EMERALD_PURPLE,
 957
 958   EL_WALL_BD_DIAMOND,
 959   EL_WALL_EMERALD_YELLOW,
 960   EL_WALL_EMERALD_RED,
 961   EL_WALL_EMERALD_PURPLE,
 962
 963   EL_GAME_OF_LIFE,
 964   EL_PACMAN_UP,
 965   EL_TIME_ORB_FULL,
 966   EL_TIME_ORB_EMPTY,
 967
 968   EL_PACMAN_LEFT,
 969   EL_DARK_YAMYAM,
 970   EL_PACMAN_RIGHT,
 971   EL_EXPANDABLE_WALL,
 972
 973   EL_BIOMAZE,
 974   EL_PACMAN_DOWN,
 975   EL_LAMP,
 976   EL_LAMP_ACTIVE,
 977
 978   EL_DYNABOMB_INCREASE_NUMBER,
 979   EL_DYNABOMB_INCREASE_SIZE,
 980   EL_DYNABOMB_INCREASE_POWER,
 981   EL_STONEBLOCK,
 982
 983   EL_MOLE,
 984   EL_PENGUIN,
 985   EL_PIG,
 986   EL_DRAGON,
 987
 988   EL_EMPTY,
 989   EL_MOLE_UP,
 990   EL_EMPTY,
 991   EL_EMPTY,
 992
 993   EL_MOLE_LEFT,
 994   EL_EMPTY,
 995   EL_MOLE_RIGHT,
 996   EL_EMPTY,
 997
 998   EL_EMPTY,
 999   EL_MOLE_DOWN,
1000   EL_BALLOON,
1001   EL_BALLOON_SWITCH_ANY,
1002
1003   EL_BALLOON_SWITCH_LEFT,
1004   EL_BALLOON_SWITCH_RIGHT,
1005   EL_BALLOON_SWITCH_UP,
1006   EL_BALLOON_SWITCH_DOWN,
1007
1008   EL_SATELLITE,
1009   EL_EXPANDABLE_WALL_HORIZONTAL,
1010   EL_EXPANDABLE_WALL_VERTICAL,
1011   EL_EXPANDABLE_WALL_ANY,
1012
1013   EL_INVISIBLE_STEELWALL,
1014   EL_INVISIBLE_WALL,
1015   EL_SPEED_PILL,
1016   EL_BLACK_ORB,
1017
1018   EL_EMC_STEELWALL_1,
1019   EL_EMC_WALL_1,
1020   EL_EMC_WALL_2,
1021   EL_EMC_WALL_3,
1022
1023   EL_EMC_WALL_4,
1024   EL_EMC_WALL_5,
1025   EL_EMC_WALL_6,
1026   EL_EMC_WALL_7,
1027 };
1028 static int num_editor_el_more = SIZEOF_ARRAY_INT(editor_el_more);
1029
1030 static int editor_el_sokoban[] =
1031 {
1032   EL_CHAR('S'),
1033   EL_CHAR('O'),
1034   EL_CHAR('K'),
1035   EL_CHAR('O'),
1036
1037   EL_CHAR('-'),
1038   EL_CHAR('B'),
1039   EL_CHAR('A'),
1040   EL_CHAR('N'),
1041
1042   EL_SOKOBAN_OBJECT,
1043   EL_SOKOBAN_FIELD_EMPTY,
1044   EL_SOKOBAN_FIELD_FULL,
1045   EL_STEELWALL,
1046 };
1047 static int num_editor_el_sokoban = SIZEOF_ARRAY_INT(editor_el_sokoban);
1048
1049 static int editor_el_supaplex[] =
1050 {
1051   EL_CHAR('S'),
1052   EL_CHAR('U'),
1053   EL_CHAR('P'),
1054   EL_CHAR('A'),
1055
1056   EL_CHAR('P'),
1057   EL_CHAR('L'),
1058   EL_CHAR('E'),
1059   EL_CHAR('X'),
1060
1061   EL_SP_EMPTY,
1062   EL_SP_ZONK,
1063   EL_SP_BASE,
1064   EL_SP_MURPHY,
1065
1066   EL_SP_INFOTRON,
1067   EL_SP_CHIP_SINGLE,
1068   EL_SP_HARDWARE_GRAY,
1069   EL_SP_EXIT_CLOSED,
1070
1071   EL_SP_DISK_ORANGE,
1072   EL_SP_PORT_RIGHT,
1073   EL_SP_PORT_DOWN,
1074   EL_SP_PORT_LEFT,
1075
1076   EL_SP_PORT_UP,
1077   EL_SP_GRAVITY_PORT_RIGHT,
1078   EL_SP_GRAVITY_PORT_DOWN,
1079   EL_SP_GRAVITY_PORT_LEFT,
1080
1081   EL_SP_GRAVITY_PORT_UP,
1082   EL_SP_SNIKSNAK,
1083   EL_SP_DISK_YELLOW,
1084   EL_SP_TERMINAL,
1085
1086   EL_SP_DISK_RED,
1087   EL_SP_PORT_VERTICAL,
1088   EL_SP_PORT_HORIZONTAL,
1089   EL_SP_PORT_ANY,
1090
1091   EL_SP_ELECTRON,
1092   EL_SP_BUGGY_BASE,
1093   EL_SP_CHIP_LEFT,
1094   EL_SP_CHIP_RIGHT,
1095
1096   EL_SP_HARDWARE_BASE_1,
1097   EL_SP_HARDWARE_GREEN,
1098   EL_SP_HARDWARE_BLUE,
1099   EL_SP_HARDWARE_RED,
1100
1101   EL_SP_HARDWARE_YELLOW,
1102   EL_SP_HARDWARE_BASE_2,
1103   EL_SP_HARDWARE_BASE_3,
1104   EL_SP_HARDWARE_BASE_4,
1105
1106   EL_SP_HARDWARE_BASE_5,
1107   EL_SP_HARDWARE_BASE_6,
1108   EL_SP_CHIP_TOP,
1109   EL_SP_CHIP_BOTTOM,
1110 };
1111 static int num_editor_el_supaplex = SIZEOF_ARRAY_INT(editor_el_supaplex);
1112
1113 static int editor_el_diamond_caves[] =
1114 {
1115   EL_CHAR('D'),
1116   EL_CHAR('I'),
1117   EL_CHAR('A'),
1118   EL_CHAR('-'),
1119
1120   EL_CHAR('M'),
1121   EL_CHAR('O'),
1122   EL_CHAR('N'),
1123   EL_CHAR('D'),
1124
1125   EL_CHAR('C'),
1126   EL_CHAR('A'),
1127   EL_CHAR('V'),
1128   EL_CHAR('E'),
1129
1130   EL_CHAR('S'),
1131   EL_CHAR(' '),
1132   EL_CHAR('I'),
1133   EL_CHAR('I'),
1134
1135   EL_PEARL,
1136   EL_CRYSTAL,
1137   EL_WALL_PEARL,
1138   EL_WALL_CRYSTAL,
1139
1140   EL_CONVEYOR_BELT_1_LEFT,
1141   EL_CONVEYOR_BELT_1_MIDDLE,
1142   EL_CONVEYOR_BELT_1_RIGHT,
1143   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1144
1145   EL_CONVEYOR_BELT_2_LEFT,
1146   EL_CONVEYOR_BELT_2_MIDDLE,
1147   EL_CONVEYOR_BELT_2_RIGHT,
1148   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1149
1150   EL_CONVEYOR_BELT_3_LEFT,
1151   EL_CONVEYOR_BELT_3_MIDDLE,
1152   EL_CONVEYOR_BELT_3_RIGHT,
1153   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1154
1155   EL_CONVEYOR_BELT_4_LEFT,
1156   EL_CONVEYOR_BELT_4_MIDDLE,
1157   EL_CONVEYOR_BELT_4_RIGHT,
1158   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1159
1160   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1161   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1162   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1163   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1164
1165   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1166   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1167   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1168   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1169
1170   EL_SWITCHGATE_OPEN,
1171   EL_SWITCHGATE_CLOSED,
1172   EL_SWITCHGATE_SWITCH_UP,
1173   EL_ENVELOPE,
1174
1175   EL_TIMEGATE_CLOSED,
1176   EL_TIMEGATE_OPEN,
1177   EL_TIMEGATE_SWITCH,
1178   EL_EMPTY,
1179
1180   EL_LANDMINE,
1181   EL_INVISIBLE_SAND,
1182   EL_STEELWALL_SLANTED,
1183   EL_EMPTY,
1184
1185   EL_SIGN_EXCLAMATION,
1186   EL_SIGN_STOP,
1187   EL_LIGHT_SWITCH,
1188   EL_LIGHT_SWITCH_ACTIVE,
1189
1190   EL_SHIELD_NORMAL,
1191   EL_SHIELD_DEADLY,
1192   EL_EXTRA_TIME,
1193   EL_EMPTY,
1194 };
1195 static int num_editor_el_diamond_caves = SIZEOF_ARRAY_INT(editor_el_diamond_caves);
1196
1197 static int editor_el_dx_boulderdash[] =
1198 {
1199   EL_CHAR('D'),
1200   EL_CHAR('X'),
1201   EL_CHAR('-'),
1202   EL_CHAR(' '),
1203
1204   EL_CHAR('B'),
1205   EL_CHAR('O'),
1206   EL_CHAR('U'),
1207   EL_CHAR('L'),
1208
1209   EL_CHAR('-'),
1210   EL_CHAR('D'),
1211   EL_CHAR('E'),
1212   EL_CHAR('R'),
1213
1214   EL_CHAR('D'),
1215   EL_CHAR('A'),
1216   EL_CHAR('S'),
1217   EL_CHAR('H'),
1218
1219   EL_SPRING,
1220   EL_TUBE_RIGHT_DOWN,
1221   EL_TUBE_HORIZONTAL_DOWN,
1222   EL_TUBE_LEFT_DOWN,
1223
1224   EL_TUBE_HORIZONTAL,
1225   EL_TUBE_VERTICAL_RIGHT,
1226   EL_TUBE_ANY,
1227   EL_TUBE_VERTICAL_LEFT,
1228
1229   EL_TUBE_VERTICAL,
1230   EL_TUBE_RIGHT_UP,
1231   EL_TUBE_HORIZONTAL_UP,
1232   EL_TUBE_LEFT_UP,
1233
1234   EL_TRAP,
1235   EL_DX_SUPABOMB,
1236   EL_EMPTY,
1237   EL_EMPTY
1238 };
1239 static int num_editor_el_dx_boulderdash = SIZEOF_ARRAY_INT(editor_el_dx_boulderdash);
1240
1241 static int editor_el_chars[] =
1242 {
1243   EL_CHAR('T'),
1244   EL_CHAR('E'),
1245   EL_CHAR('X'),
1246   EL_CHAR('T'),
1247
1248   EL_CHAR(' '),
1249   EL_CHAR('!'),
1250   EL_CHAR('"'),
1251   EL_CHAR('#'),
1252
1253   EL_CHAR('$'),
1254   EL_CHAR('%'),
1255   EL_CHAR('&'),
1256   EL_CHAR('\''),
1257
1258   EL_CHAR('('),
1259   EL_CHAR(')'),
1260   EL_CHAR('*'),
1261   EL_CHAR('+'),
1262
1263   EL_CHAR(','),
1264   EL_CHAR('-'),
1265   EL_CHAR('.'),
1266   EL_CHAR('/'),
1267
1268   EL_CHAR('0'),
1269   EL_CHAR('1'),
1270   EL_CHAR('2'),
1271   EL_CHAR('3'),
1272
1273   EL_CHAR('4'),
1274   EL_CHAR('5'),
1275   EL_CHAR('6'),
1276   EL_CHAR('7'),
1277
1278   EL_CHAR('8'),
1279   EL_CHAR('9'),
1280   EL_CHAR(':'),
1281   EL_CHAR(';'),
1282
1283   EL_CHAR('<'),
1284   EL_CHAR('='),
1285   EL_CHAR('>'),
1286   EL_CHAR('?'),
1287
1288   EL_CHAR('@'),
1289   EL_CHAR('A'),
1290   EL_CHAR('B'),
1291   EL_CHAR('C'),
1292
1293   EL_CHAR('D'),
1294   EL_CHAR('E'),
1295   EL_CHAR('F'),
1296   EL_CHAR('G'),
1297
1298   EL_CHAR('H'),
1299   EL_CHAR('I'),
1300   EL_CHAR('J'),
1301   EL_CHAR('K'),
1302
1303   EL_CHAR('L'),
1304   EL_CHAR('M'),
1305   EL_CHAR('N'),
1306   EL_CHAR('O'),
1307
1308   EL_CHAR('P'),
1309   EL_CHAR('Q'),
1310   EL_CHAR('R'),
1311   EL_CHAR('S'),
1312
1313   EL_CHAR('T'),
1314   EL_CHAR('U'),
1315   EL_CHAR('V'),
1316   EL_CHAR('W'),
1317
1318   EL_CHAR('X'),
1319   EL_CHAR('Y'),
1320   EL_CHAR('Z'),
1321   EL_CHAR('Ä'),
1322
1323   EL_CHAR('Ö'),
1324   EL_CHAR('Ü'),
1325   EL_CHAR('^'),
1326   EL_CHAR('_'),
1327
1328   EL_CHAR(' '),
1329   EL_CHAR('°'),
1330   EL_CHAR('´'),
1331   EL_CHAR('|')
1332 };
1333 static int num_editor_el_chars = SIZEOF_ARRAY_INT(editor_el_chars);
1334
1335 static int editor_el_custom[] =
1336 {
1337   EL_CHAR('C'),
1338   EL_CHAR('U'),
1339   EL_CHAR('S'),
1340   EL_CHAR('-'),
1341
1342   EL_CHAR('T'),
1343   EL_CHAR('O'),
1344   EL_CHAR('M'),
1345   EL_CHAR(' '),
1346
1347   EL_CHAR('E'),
1348   EL_CHAR('L'),
1349   EL_CHAR('E'),
1350   EL_CHAR('M'),
1351
1352   EL_CHAR('E'),
1353   EL_CHAR('N'),
1354   EL_CHAR('T'),
1355   EL_CHAR('S'),
1356
1357   EL_CUSTOM_START + 0,
1358   EL_CUSTOM_START + 1,
1359   EL_CUSTOM_START + 2,
1360   EL_CUSTOM_START + 3,
1361
1362   EL_CUSTOM_START + 4,
1363   EL_CUSTOM_START + 5,
1364   EL_CUSTOM_START + 6,
1365   EL_CUSTOM_START + 7,
1366
1367   EL_CUSTOM_START + 8,
1368   EL_CUSTOM_START + 9,
1369   EL_CUSTOM_START + 10,
1370   EL_CUSTOM_START + 11,
1371
1372   EL_CUSTOM_START + 12,
1373   EL_CUSTOM_START + 13,
1374   EL_CUSTOM_START + 14,
1375   EL_CUSTOM_START + 15,
1376
1377   EL_CUSTOM_START + 16,
1378   EL_CUSTOM_START + 17,
1379   EL_CUSTOM_START + 18,
1380   EL_CUSTOM_START + 19,
1381
1382   EL_CUSTOM_START + 20,
1383   EL_CUSTOM_START + 21,
1384   EL_CUSTOM_START + 22,
1385   EL_CUSTOM_START + 23,
1386
1387   EL_CUSTOM_START + 24,
1388   EL_CUSTOM_START + 25,
1389   EL_CUSTOM_START + 26,
1390   EL_CUSTOM_START + 27,
1391
1392   EL_CUSTOM_START + 28,
1393   EL_CUSTOM_START + 29,
1394   EL_CUSTOM_START + 30,
1395   EL_CUSTOM_START + 31,
1396
1397   EL_CUSTOM_START + 32,
1398   EL_CUSTOM_START + 33,
1399   EL_CUSTOM_START + 34,
1400   EL_CUSTOM_START + 35,
1401
1402   EL_CUSTOM_START + 36,
1403   EL_CUSTOM_START + 37,
1404   EL_CUSTOM_START + 38,
1405   EL_CUSTOM_START + 39,
1406
1407   EL_CUSTOM_START + 40,
1408   EL_CUSTOM_START + 41,
1409   EL_CUSTOM_START + 42,
1410   EL_CUSTOM_START + 43,
1411
1412   EL_CUSTOM_START + 44,
1413   EL_CUSTOM_START + 45,
1414   EL_CUSTOM_START + 46,
1415   EL_CUSTOM_START + 47,
1416
1417   EL_CUSTOM_START + 48,
1418   EL_CUSTOM_START + 49,
1419   EL_CUSTOM_START + 50,
1420   EL_CUSTOM_START + 51,
1421
1422   EL_CUSTOM_START + 52,
1423   EL_CUSTOM_START + 53,
1424   EL_CUSTOM_START + 54,
1425   EL_CUSTOM_START + 55,
1426
1427   EL_CUSTOM_START + 56,
1428   EL_CUSTOM_START + 57,
1429   EL_CUSTOM_START + 58,
1430   EL_CUSTOM_START + 59,
1431
1432   EL_CUSTOM_START + 60,
1433   EL_CUSTOM_START + 61,
1434   EL_CUSTOM_START + 62,
1435   EL_CUSTOM_START + 63,
1436
1437   EL_CUSTOM_START + 64,
1438   EL_CUSTOM_START + 65,
1439   EL_CUSTOM_START + 66,
1440   EL_CUSTOM_START + 67,
1441
1442   EL_CUSTOM_START + 68,
1443   EL_CUSTOM_START + 69,
1444   EL_CUSTOM_START + 70,
1445   EL_CUSTOM_START + 71,
1446
1447   EL_CUSTOM_START + 72,
1448   EL_CUSTOM_START + 73,
1449   EL_CUSTOM_START + 74,
1450   EL_CUSTOM_START + 75,
1451
1452   EL_CUSTOM_START + 76,
1453   EL_CUSTOM_START + 77,
1454   EL_CUSTOM_START + 78,
1455   EL_CUSTOM_START + 79,
1456
1457   EL_CUSTOM_START + 80,
1458   EL_CUSTOM_START + 81,
1459   EL_CUSTOM_START + 82,
1460   EL_CUSTOM_START + 83,
1461
1462   EL_CUSTOM_START + 84,
1463   EL_CUSTOM_START + 85,
1464   EL_CUSTOM_START + 86,
1465   EL_CUSTOM_START + 87,
1466
1467   EL_CUSTOM_START + 88,
1468   EL_CUSTOM_START + 89,
1469   EL_CUSTOM_START + 90,
1470   EL_CUSTOM_START + 91,
1471
1472   EL_CUSTOM_START + 92,
1473   EL_CUSTOM_START + 93,
1474   EL_CUSTOM_START + 94,
1475   EL_CUSTOM_START + 95,
1476
1477   EL_CUSTOM_START + 96,
1478   EL_CUSTOM_START + 97,
1479   EL_CUSTOM_START + 98,
1480   EL_CUSTOM_START + 99,
1481
1482   EL_CUSTOM_START + 100,
1483   EL_CUSTOM_START + 101,
1484   EL_CUSTOM_START + 102,
1485   EL_CUSTOM_START + 103,
1486
1487   EL_CUSTOM_START + 104,
1488   EL_CUSTOM_START + 105,
1489   EL_CUSTOM_START + 106,
1490   EL_CUSTOM_START + 107,
1491
1492   EL_CUSTOM_START + 108,
1493   EL_CUSTOM_START + 109,
1494   EL_CUSTOM_START + 110,
1495   EL_CUSTOM_START + 111,
1496
1497   EL_CUSTOM_START + 112,
1498   EL_CUSTOM_START + 113,
1499   EL_CUSTOM_START + 114,
1500   EL_CUSTOM_START + 115,
1501
1502   EL_CUSTOM_START + 116,
1503   EL_CUSTOM_START + 117,
1504   EL_CUSTOM_START + 118,
1505   EL_CUSTOM_START + 119,
1506
1507   EL_CUSTOM_START + 120,
1508   EL_CUSTOM_START + 121,
1509   EL_CUSTOM_START + 122,
1510   EL_CUSTOM_START + 123,
1511
1512   EL_CUSTOM_START + 124,
1513   EL_CUSTOM_START + 125,
1514   EL_CUSTOM_START + 126,
1515   EL_CUSTOM_START + 127
1516 };
1517 static int num_editor_el_custom = SIZEOF_ARRAY_INT(editor_el_custom);
1518
1519 static int *editor_elements = NULL;     /* dynamically allocated */
1520 static int num_editor_elements = 0;     /* dynamically determined */
1521
1522 static struct
1523 {
1524   boolean *setup_value;
1525   int *element_list;
1526   int *element_list_size;
1527
1528   boolean last_setup_value;
1529 }
1530 editor_elements_info[] =
1531 {
1532   { &setup.editor.el_boulderdash,       editor_el_boulderdash,
1533     &num_editor_el_boulderdash                                          },
1534   { &setup.editor.el_emerald_mine,      editor_el_emerald_mine,
1535     &num_editor_el_emerald_mine                                         },
1536   { &setup.editor.el_more,              editor_el_more,
1537     &num_editor_el_more                                                 },
1538   { &setup.editor.el_sokoban,           editor_el_sokoban,
1539     &num_editor_el_sokoban                                              },
1540   { &setup.editor.el_supaplex,          editor_el_supaplex,
1541     &num_editor_el_supaplex                                             },
1542   { &setup.editor.el_diamond_caves,     editor_el_diamond_caves,
1543     &num_editor_el_diamond_caves                                        },
1544   { &setup.editor.el_dx_boulderdash,    editor_el_dx_boulderdash,
1545     &num_editor_el_dx_boulderdash                                       },
1546   { &setup.editor.el_chars,             editor_el_chars,
1547     &num_editor_el_chars                                                },
1548   { &setup.editor.el_custom,            editor_el_custom,
1549     &num_editor_el_custom                                               },
1550   { NULL,                               NULL,
1551     NULL                                                                }
1552 };
1553
1554 static void ReinitializeElementList()
1555 {
1556   int pos = 0;
1557   int i, j;
1558
1559   if (editor_elements != NULL)
1560     free(editor_elements);
1561
1562   num_editor_elements = 0;
1563
1564   /* determine size of element list */
1565   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1566     if (*editor_elements_info[i].setup_value)
1567       num_editor_elements += *editor_elements_info[i].element_list_size;
1568
1569   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
1570   {
1571     /* workaround: offer at least as many elements as element buttons exist */
1572     int list_nr = 1;    /* see above: editor_elements_info for Emerald Mine */
1573
1574     *editor_elements_info[list_nr].setup_value = TRUE;
1575     num_editor_elements += *editor_elements_info[list_nr].element_list_size;
1576   }
1577
1578   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
1579
1580   /* fill element list */
1581   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1582     if (*editor_elements_info[i].setup_value)
1583       for (j=0; j<*editor_elements_info[i].element_list_size; j++)
1584         editor_elements[pos++] = editor_elements_info[i].element_list[j];
1585 }
1586
1587 static void ReinitializeElementListButtons()
1588 {
1589   static boolean initialization_needed = TRUE;
1590   int i;
1591
1592   if (!initialization_needed)   /* check if editor element setup has changed */
1593     for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1594       if (editor_elements_info[i].last_setup_value !=
1595           *editor_elements_info[i].setup_value)
1596         initialization_needed = TRUE;
1597
1598   if (!initialization_needed)
1599     return;
1600
1601   FreeLevelEditorGadgets();
1602   CreateLevelEditorGadgets();
1603
1604   /* store current setup values for next invocation of this function */
1605   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1606     editor_elements_info[i].last_setup_value =
1607       *editor_elements_info[i].setup_value;
1608
1609   initialization_needed = FALSE;
1610 }
1611
1612 static int getCounterGadgetWidth()
1613 {
1614   return (DXSIZE + getFontWidth(FONT_INPUT) - 2 * ED_GADGET_DISTANCE);
1615 }
1616
1617 static int getMaxInfoTextLength()
1618 {
1619   return (SXSIZE / getFontWidth(FONT_TEXT_2));
1620 }
1621
1622 static char *getElementInfoText(int element)
1623 {
1624   char *info_text = NULL;
1625
1626   if (element < NUM_FILE_ELEMENTS)
1627   {
1628     if (element_info[element].custom_description != NULL)
1629       info_text = element_info[element].custom_description;
1630     else if (element_info[element].editor_description != NULL)
1631       info_text = element_info[element].editor_description;
1632   }
1633
1634   if (info_text == NULL)
1635   {
1636     info_text = "unknown";
1637
1638     Error(ERR_WARN, "no element description for element %d", element);
1639   }
1640
1641   return info_text;
1642 }
1643
1644 static void ScrollMiniLevel(int from_x, int from_y, int scroll)
1645 {
1646   int x,y;
1647   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
1648   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
1649
1650   BlitBitmap(drawto, drawto,
1651              SX + (dx == -1 ? MINI_TILEX : 0),
1652              SY + (dy == -1 ? MINI_TILEY : 0),
1653              (ed_fieldx * MINI_TILEX) - (dx != 0 ? MINI_TILEX : 0),
1654              (ed_fieldy * MINI_TILEY) - (dy != 0 ? MINI_TILEY : 0),
1655              SX + (dx == +1 ? MINI_TILEX : 0),
1656              SY + (dy == +1 ? MINI_TILEY : 0));
1657   if (dx)
1658   {
1659     x = (dx == 1 ? 0 : ed_fieldx - 1);
1660     for(y=0; y<ed_fieldy; y++)
1661       DrawMiniElementOrWall(x, y, from_x, from_y);
1662   }
1663   else if (dy)
1664   {
1665     y = (dy == 1 ? 0 : ed_fieldy - 1);
1666     for(x=0; x<ed_fieldx; x++)
1667       DrawMiniElementOrWall(x, y, from_x, from_y);
1668   }
1669
1670   redraw_mask |= REDRAW_FIELD;
1671   BackToFront();
1672 }
1673
1674 static void CreateControlButtons()
1675 {
1676   Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
1677   struct GadgetInfo *gi;
1678   unsigned long event_mask;
1679   int i;
1680
1681   /* create toolbox buttons */
1682   for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
1683   {
1684     int id = i;
1685     int width, height;
1686     int gd_xoffset, gd_yoffset;
1687     int gd_x1, gd_x2, gd_y1, gd_y2;
1688     int button_type;
1689     int radio_button_nr;
1690     boolean checked;
1691
1692     if (id == GADGET_ID_SINGLE_ITEMS ||
1693         id == GADGET_ID_CONNECTED_ITEMS ||
1694         id == GADGET_ID_LINE ||
1695         id == GADGET_ID_ARC ||
1696         id == GADGET_ID_TEXT ||
1697         id == GADGET_ID_RECTANGLE ||
1698         id == GADGET_ID_FILLED_BOX ||
1699         id == GADGET_ID_FLOOD_FILL ||
1700         id == GADGET_ID_GRAB_BRUSH ||
1701         id == GADGET_ID_PICK_ELEMENT)
1702     {
1703       button_type = GD_TYPE_RADIO_BUTTON;
1704       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
1705       checked = (id == drawing_function ? TRUE : FALSE);
1706       event_mask = GD_EVENT_PRESSED;
1707     }
1708     else
1709     {
1710       button_type = GD_TYPE_NORMAL_BUTTON;
1711       radio_button_nr = RADIO_NR_NONE;
1712       checked = FALSE;
1713
1714       if (id == GADGET_ID_WRAP_LEFT ||
1715           id == GADGET_ID_WRAP_RIGHT ||
1716           id == GADGET_ID_WRAP_UP ||
1717           id == GADGET_ID_WRAP_DOWN)
1718         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
1719       else
1720         event_mask = GD_EVENT_RELEASED;
1721     }
1722
1723     if (id < ED_NUM_CTRL1_BUTTONS)
1724     {
1725       int x = i % ED_CTRL1_BUTTONS_HORIZ;
1726       int y = i / ED_CTRL1_BUTTONS_HORIZ;
1727
1728       gd_xoffset = ED_CTRL1_BUTTONS_XPOS + x * ED_CTRL1_BUTTON_XSIZE;
1729       gd_yoffset = ED_CTRL1_BUTTONS_YPOS + y * ED_CTRL1_BUTTON_YSIZE;
1730       width = ED_CTRL1_BUTTON_XSIZE;
1731       height = ED_CTRL1_BUTTON_YSIZE;
1732     }
1733     else
1734     {
1735       int x = (i - ED_NUM_CTRL1_BUTTONS) % ED_CTRL2_BUTTONS_HORIZ;
1736       int y = (i - ED_NUM_CTRL1_BUTTONS) / ED_CTRL2_BUTTONS_HORIZ;
1737
1738       gd_xoffset = ED_CTRL2_BUTTONS_XPOS + x * ED_CTRL2_BUTTON_XSIZE;
1739       gd_yoffset = ED_CTRL2_BUTTONS_YPOS + y * ED_CTRL2_BUTTON_YSIZE;
1740       width = ED_CTRL2_BUTTON_XSIZE;
1741       height = ED_CTRL2_BUTTON_YSIZE;
1742     }
1743
1744     gd_x1 = DOOR_GFX_PAGEX8 + gd_xoffset;
1745     gd_x2 = DOOR_GFX_PAGEX7 + gd_xoffset;
1746     gd_y1  = DOOR_GFX_PAGEY1 + ED_CTRL_BUTTONS_GFX_YPOS + gd_yoffset;
1747     gd_y2  = DOOR_GFX_PAGEY1 + ED_CTRL_BUTTONS_ALT_GFX_YPOS + gd_yoffset;
1748
1749     gi = CreateGadget(GDI_CUSTOM_ID, id,
1750                       GDI_CUSTOM_TYPE_ID, i,
1751                       GDI_INFO_TEXT, control_info[i].text,
1752                       GDI_X, EX + gd_xoffset,
1753                       GDI_Y, EY + gd_yoffset,
1754                       GDI_WIDTH, width,
1755                       GDI_HEIGHT, height,
1756                       GDI_TYPE, button_type,
1757                       GDI_STATE, GD_BUTTON_UNPRESSED,
1758                       GDI_RADIO_NR, radio_button_nr,
1759                       GDI_CHECKED, checked,
1760                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
1761                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y1,
1762                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y2,
1763                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
1764                       GDI_EVENT_MASK, event_mask,
1765                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1766                       GDI_CALLBACK_ACTION, HandleControlButtons,
1767                       GDI_END);
1768
1769     if (gi == NULL)
1770       Error(ERR_EXIT, "cannot create gadget");
1771
1772     level_editor_gadget[id] = gi;
1773   }
1774
1775   /* create buttons for scrolling of drawing area and element list */
1776   for (i=0; i<ED_NUM_SCROLLBUTTONS; i++)
1777   {
1778     int id = scrollbutton_info[i].gadget_id;
1779     int x, y, width, height;
1780     int gd_x1, gd_x2, gd_y1, gd_y2;
1781
1782     x = scrollbutton_info[i].x;
1783     y = scrollbutton_info[i].y;
1784
1785     event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
1786
1787     if (id == GADGET_ID_SCROLL_LIST_UP ||
1788         id == GADGET_ID_SCROLL_LIST_DOWN)
1789     {
1790       x += DX;
1791       y += DY;
1792       width = ED_SCROLLBUTTON2_XSIZE;
1793       height = ED_SCROLLBUTTON2_YSIZE;
1794       gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[i].xpos;
1795       gd_y1 = DOOR_GFX_PAGEY1 + scrollbutton_info[i].ypos;
1796       gd_x2 = gd_x1 - ED_SCROLLBUTTON2_XSIZE;
1797       gd_y2 = gd_y1;
1798     }
1799     else
1800     {
1801       x += SX;
1802       y += SY;
1803       width = ED_SCROLLBUTTON_XSIZE;
1804       height = ED_SCROLLBUTTON_YSIZE;
1805       gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[i].xpos;
1806       gd_y1 = DOOR_GFX_PAGEY1 + scrollbutton_info[i].ypos;
1807       gd_x2 = gd_x1 - ED_SCROLLBUTTON_XSIZE;
1808       gd_y2 = gd_y1;
1809     }
1810
1811     gi = CreateGadget(GDI_CUSTOM_ID, id,
1812                       GDI_CUSTOM_TYPE_ID, i,
1813                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
1814                       GDI_X, x,
1815                       GDI_Y, y,
1816                       GDI_WIDTH, width,
1817                       GDI_HEIGHT, height,
1818                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
1819                       GDI_STATE, GD_BUTTON_UNPRESSED,
1820                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
1821                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
1822                       GDI_EVENT_MASK, event_mask,
1823                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1824                       GDI_CALLBACK_ACTION, HandleControlButtons,
1825                       GDI_END);
1826
1827     if (gi == NULL)
1828       Error(ERR_EXIT, "cannot create gadget");
1829
1830     level_editor_gadget[id] = gi;
1831   }
1832
1833   /* create buttons for element list */
1834   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
1835   {
1836     Bitmap *deco_bitmap;
1837     int deco_x, deco_y, deco_xpos, deco_ypos;
1838     int gd_xoffset, gd_yoffset;
1839     int gd_x1, gd_x2, gd_y;
1840     int x = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
1841     int y = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
1842     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
1843     int element = editor_elements[i];
1844
1845     event_mask = GD_EVENT_RELEASED;
1846
1847     gd_xoffset = ED_ELEMENTLIST_XPOS + x * ED_ELEMENTLIST_XSIZE;
1848     gd_yoffset = ED_ELEMENTLIST_YPOS + y * ED_ELEMENTLIST_YSIZE;
1849
1850     gd_x1 = DOOR_GFX_PAGEX6 + ED_ELEMENTLIST_XPOS + ED_ELEMENTLIST_XSIZE;
1851     gd_x2 = DOOR_GFX_PAGEX6 + ED_ELEMENTLIST_XPOS;
1852     gd_y  = DOOR_GFX_PAGEY1 + ED_ELEMENTLIST_YPOS;
1853
1854     getMiniGraphicSource(el2edimg(element), &deco_bitmap, &deco_x, &deco_y);
1855     deco_xpos = (ED_ELEMENTLIST_XSIZE - MINI_TILEX) / 2;
1856     deco_ypos = (ED_ELEMENTLIST_YSIZE - MINI_TILEY) / 2;
1857
1858     gi = CreateGadget(GDI_CUSTOM_ID, id,
1859                       GDI_CUSTOM_TYPE_ID, i,
1860                       GDI_INFO_TEXT, getElementInfoText(element),
1861                       GDI_X, DX + gd_xoffset,
1862                       GDI_Y, DY + gd_yoffset,
1863                       GDI_WIDTH, ED_ELEMENTLIST_XSIZE,
1864                       GDI_HEIGHT, ED_ELEMENTLIST_YSIZE,
1865                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
1866                       GDI_STATE, GD_BUTTON_UNPRESSED,
1867                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
1868                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
1869                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
1870                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
1871                       GDI_DECORATION_SIZE, MINI_TILEX, MINI_TILEY,
1872                       GDI_DECORATION_SHIFTING, 1, 1,
1873                       GDI_EVENT_MASK, event_mask,
1874                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1875                       GDI_CALLBACK_ACTION, HandleControlButtons,
1876                       GDI_END);
1877
1878     if (gi == NULL)
1879       Error(ERR_EXIT, "cannot create gadget");
1880
1881     level_editor_gadget[id] = gi;
1882   }
1883 }
1884
1885 static void CreateCounterButtons()
1886 {
1887   int max_infotext_len = getMaxInfoTextLength();
1888   int i;
1889
1890   for (i=0; i<ED_NUM_COUNTERBUTTONS; i++)
1891   {
1892     int j;
1893     int xpos = SX + counterbutton_info[i].x;    /* xpos of down count button */
1894     int ypos = SY + counterbutton_info[i].y;
1895
1896     for (j=0; j<2; j++)
1897     {
1898       Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
1899       struct GadgetInfo *gi;
1900       int id = (j == 0 ?
1901                 counterbutton_info[i].gadget_id_down :
1902                 counterbutton_info[i].gadget_id_up);
1903       int gd_xoffset;
1904       int gd_x, gd_x1, gd_x2, gd_y;
1905       int x_size, y_size;
1906       unsigned long event_mask;
1907       char infotext[max_infotext_len + 1];
1908
1909       event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
1910
1911       if (i == ED_COUNTER_ID_SELECT_LEVEL)
1912       {
1913         int sid = (j == 0 ?
1914                    ED_SCROLLBUTTON_ID_AREA_LEFT :
1915                    ED_SCROLLBUTTON_ID_AREA_RIGHT);
1916
1917         event_mask |= GD_EVENT_RELEASED;
1918
1919         if (j == 1)
1920           xpos += 2 * ED_GADGET_DISTANCE;
1921         ypos += ED_GADGET_DISTANCE;
1922
1923         gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[sid].xpos;
1924         gd_x2 = gd_x1 - ED_SCROLLBUTTON_XSIZE;
1925         gd_y  = DOOR_GFX_PAGEY1 + scrollbutton_info[sid].ypos;
1926         x_size = ED_SCROLLBUTTON_XSIZE;
1927         y_size = ED_SCROLLBUTTON_YSIZE;
1928       }
1929       else
1930       {
1931         gd_xoffset = (j == 0 ? ED_BUTTON_MINUS_XPOS : ED_BUTTON_PLUS_XPOS);
1932         gd_x1 = DOOR_GFX_PAGEX4 + gd_xoffset;
1933         gd_x2 = DOOR_GFX_PAGEX3 + gd_xoffset;
1934         gd_y  = DOOR_GFX_PAGEY1 + ED_BUTTON_COUNT_YPOS;
1935         x_size = ED_BUTTON_COUNT_XSIZE;
1936         y_size = ED_BUTTON_COUNT_YSIZE;
1937       }
1938
1939       sprintf(infotext, "%s counter value by 1, 5 or 10",
1940               (j == 0 ? "decrease" : "increase"));
1941
1942       gi = CreateGadget(GDI_CUSTOM_ID, id,
1943                         GDI_CUSTOM_TYPE_ID, i,
1944                         GDI_INFO_TEXT, infotext,
1945                         GDI_X, xpos,
1946                         GDI_Y, ypos,
1947                         GDI_WIDTH, x_size,
1948                         GDI_HEIGHT, y_size,
1949                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
1950                         GDI_STATE, GD_BUTTON_UNPRESSED,
1951                         GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
1952                         GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
1953                         GDI_EVENT_MASK, event_mask,
1954                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1955                         GDI_CALLBACK_ACTION, HandleCounterButtons,
1956                         GDI_END);
1957
1958       if (gi == NULL)
1959         Error(ERR_EXIT, "cannot create gadget");
1960
1961       level_editor_gadget[id] = gi;
1962       xpos += gi->width + ED_GADGET_DISTANCE;   /* xpos of text count button */
1963
1964       if (j == 0)
1965       {
1966         int font_type = FONT_INPUT;
1967         int gd_width = ED_WIN_COUNT_XSIZE;
1968
1969         id = counterbutton_info[i].gadget_id_text;
1970         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
1971
1972         if (i == ED_COUNTER_ID_SELECT_LEVEL)
1973         {
1974           font_type = FONT_LEVEL_NUMBER;
1975
1976           xpos += 2 * ED_GADGET_DISTANCE;
1977           ypos -= ED_GADGET_DISTANCE;
1978
1979           gd_x = DOOR_GFX_PAGEX6 + ED_WIN_COUNT2_XPOS;
1980           gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT2_YPOS;
1981           gd_width = ED_WIN_COUNT2_XSIZE;
1982         }
1983         else
1984         {
1985           gd_x = DOOR_GFX_PAGEX4 + ED_WIN_COUNT_XPOS;
1986           gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT_YPOS;
1987         }
1988
1989         gi = CreateGadget(GDI_CUSTOM_ID, id,
1990                           GDI_CUSTOM_TYPE_ID, i,
1991                           GDI_INFO_TEXT, "enter counter value",
1992                           GDI_X, xpos,
1993                           GDI_Y, ypos,
1994                           GDI_TYPE, GD_TYPE_TEXTINPUT_NUMERIC,
1995                           GDI_NUMBER_VALUE, 0,
1996                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
1997                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
1998                           GDI_TEXT_SIZE, 3,
1999                           GDI_TEXT_FONT, font_type,
2000                           GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
2001                           GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
2002                           GDI_BORDER_SIZE, ED_BORDER_SIZE,
2003                           GDI_TEXTINPUT_DESIGN_WIDTH, gd_width,
2004                           GDI_EVENT_MASK, event_mask,
2005                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2006                           GDI_CALLBACK_ACTION, HandleCounterButtons,
2007                           GDI_END);
2008
2009         if (gi == NULL)
2010           Error(ERR_EXIT, "cannot create gadget");
2011
2012         level_editor_gadget[id] = gi;
2013         xpos += gi->width + ED_GADGET_DISTANCE; /* xpos of up count button */
2014       }
2015     }
2016   }
2017 }
2018
2019 static void CreateDrawingAreas()
2020 {
2021   struct GadgetInfo *gi;
2022   unsigned long event_mask;
2023   int id;
2024   int i;
2025
2026   event_mask =
2027     GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
2028     GD_EVENT_OFF_BORDERS;
2029
2030   /* one for the level drawing area ... */
2031   id = GADGET_ID_DRAWING_LEVEL;
2032   gi = CreateGadget(GDI_CUSTOM_ID, id,
2033                     GDI_X, SX,
2034                     GDI_Y, SY,
2035                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2036                     GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
2037                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2038                     GDI_EVENT_MASK, event_mask,
2039                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2040                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2041                     GDI_END);
2042
2043   if (gi == NULL)
2044     Error(ERR_EXIT, "cannot create gadget");
2045
2046   level_editor_gadget[id] = gi;
2047
2048   /* ... up to eight areas for element content ... */
2049   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
2050   {
2051     int gx = SX + ED_AREA_ELEM_CONTENT_XPOS + 5 * (i % 4) * MINI_TILEX;
2052     int gy = SX + ED_AREA_ELEM_CONTENT_YPOS + 6 * (i / 4) * MINI_TILEY;
2053
2054     id = GADGET_ID_ELEM_CONTENT_0 + i;
2055     gi = CreateGadget(GDI_CUSTOM_ID, id,
2056                       GDI_CUSTOM_TYPE_ID, i,
2057                       GDI_X, gx,
2058                       GDI_Y, gy,
2059                       GDI_WIDTH, 3 * MINI_TILEX,
2060                       GDI_HEIGHT, 3 * MINI_TILEY,
2061                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
2062                       GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2063                       GDI_EVENT_MASK, event_mask,
2064                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2065                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
2066                       GDI_END);
2067
2068     if (gi == NULL)
2069       Error(ERR_EXIT, "cannot create gadget");
2070
2071     level_editor_gadget[id] = gi;
2072   }
2073
2074   /* ... one for the amoeba content */
2075   id = GADGET_ID_AMOEBA_CONTENT;
2076   gi = CreateGadget(GDI_CUSTOM_ID, id,
2077                     GDI_X, SX + ED_AREA_ELEM_CONTENT_XPOS,
2078                     GDI_Y, SY + ED_AREA_ELEM_CONTENT_YPOS,
2079                     GDI_WIDTH, MINI_TILEX,
2080                     GDI_HEIGHT, MINI_TILEY,
2081                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2082                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2083                     GDI_EVENT_MASK, event_mask,
2084                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2085                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2086                     GDI_END);
2087
2088   if (gi == NULL)
2089     Error(ERR_EXIT, "cannot create gadget");
2090
2091   level_editor_gadget[id] = gi;
2092
2093   /* ... and one for random placement background restrictions */
2094
2095   id = GADGET_ID_RANDOM_BACKGROUND;
2096   gi = CreateGadget(GDI_CUSTOM_ID, id,
2097                     GDI_X, SX + ED_AREA_RANDOM_BACKGROUND_XPOS,
2098                     GDI_Y, SY + ED_AREA_RANDOM_BACKGROUND_YPOS,
2099                     GDI_WIDTH, MINI_TILEX,
2100                     GDI_HEIGHT, MINI_TILEY,
2101                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2102                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2103                     GDI_EVENT_MASK, event_mask,
2104                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2105                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2106                     GDI_END);
2107
2108   if (gi == NULL)
2109     Error(ERR_EXIT, "cannot create gadget");
2110
2111   level_editor_gadget[id] = gi;
2112 }
2113
2114 static void CreateTextInputGadgets()
2115 {
2116   int max_infotext_len = getMaxInfoTextLength();
2117   int i;
2118
2119   for (i=0; i<ED_NUM_TEXTINPUT; i++)
2120   {
2121     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2122     int gd_x, gd_y;
2123     struct GadgetInfo *gi;
2124     unsigned long event_mask;
2125     char infotext[MAX_OUTPUT_LINESIZE + 1];
2126     int id = textinput_info[i].gadget_id;
2127
2128     event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
2129
2130     gd_x = DOOR_GFX_PAGEX4 + ED_WIN_COUNT_XPOS;
2131     gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT_YPOS;
2132
2133     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
2134     infotext[max_infotext_len] = '\0';
2135
2136     gi = CreateGadget(GDI_CUSTOM_ID, id,
2137                       GDI_CUSTOM_TYPE_ID, i,
2138                       GDI_INFO_TEXT, infotext,
2139                       GDI_X, SX + textinput_info[i].x,
2140                       GDI_Y, SY + textinput_info[i].y,
2141                       GDI_TYPE, GD_TYPE_TEXTINPUT_ALPHANUMERIC,
2142                       GDI_TEXT_VALUE, textinput_info[i].value,
2143                       GDI_TEXT_SIZE, textinput_info[i].size,
2144                       GDI_TEXT_FONT, FONT_INPUT,
2145                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
2146                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
2147                       GDI_BORDER_SIZE, ED_BORDER_SIZE,
2148                       GDI_TEXTINPUT_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
2149                       GDI_EVENT_MASK, event_mask,
2150                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2151                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
2152                       GDI_END);
2153
2154     if (gi == NULL)
2155       Error(ERR_EXIT, "cannot create gadget");
2156
2157     level_editor_gadget[id] = gi;
2158   }
2159 }
2160
2161 static void CreateScrollbarGadgets()
2162 {
2163   int i;
2164
2165   for (i=0; i<ED_NUM_SCROLLBARS; i++)
2166   {
2167     int id = scrollbar_info[i].gadget_id;
2168     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2169     int gd_x1, gd_x2, gd_y1, gd_y2;
2170     struct GadgetInfo *gi;
2171     int items_max, items_visible, item_position;
2172     unsigned long event_mask;
2173
2174     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
2175     {
2176       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
2177       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
2178       item_position = 0;
2179     }
2180     else        /* drawing area scrollbars */
2181     {
2182       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
2183       {
2184         items_max = MAX(lev_fieldx + 2, ed_fieldx);
2185         items_visible = ed_fieldx;
2186         item_position = 0;
2187       }
2188       else
2189       {
2190         items_max = MAX(lev_fieldy + 2, ed_fieldy);
2191         items_visible = ed_fieldy;
2192         item_position = 0;
2193       }
2194     }
2195
2196     event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
2197
2198     gd_x1 = DOOR_GFX_PAGEX8 + scrollbar_info[i].xpos;
2199     gd_x2 = (gd_x1 - (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL ?
2200                       scrollbar_info[i].height : scrollbar_info[i].width));
2201     gd_y1 = DOOR_GFX_PAGEY1 + scrollbar_info[i].ypos;
2202     gd_y2 = DOOR_GFX_PAGEY1 + scrollbar_info[i].ypos;
2203
2204     gi = CreateGadget(GDI_CUSTOM_ID, id,
2205                       GDI_CUSTOM_TYPE_ID, i,
2206                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
2207                       GDI_X, scrollbar_info[i].x,
2208                       GDI_Y, scrollbar_info[i].y,
2209                       GDI_WIDTH, scrollbar_info[i].width,
2210                       GDI_HEIGHT, scrollbar_info[i].height,
2211                       GDI_TYPE, scrollbar_info[i].type,
2212                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
2213                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
2214                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
2215                       GDI_STATE, GD_BUTTON_UNPRESSED,
2216                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2217                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
2218                       GDI_BORDER_SIZE, ED_BORDER_SIZE,
2219                       GDI_EVENT_MASK, event_mask,
2220                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2221                       GDI_CALLBACK_ACTION, HandleControlButtons,
2222                       GDI_END);
2223
2224     if (gi == NULL)
2225       Error(ERR_EXIT, "cannot create gadget");
2226
2227     level_editor_gadget[id] = gi;
2228   }
2229 }
2230
2231 static void CreateCheckbuttonGadgets()
2232 {
2233   Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2234   struct GadgetInfo *gi;
2235   unsigned long event_mask;
2236   int gd_x1, gd_x2, gd_x3, gd_x4, gd_y;
2237   boolean checked;
2238   int i;
2239
2240   event_mask = GD_EVENT_PRESSED;
2241
2242   gd_x1 = DOOR_GFX_PAGEX4 + ED_CHECKBUTTON_UNCHECKED_XPOS;
2243   gd_x2 = DOOR_GFX_PAGEX3 + ED_CHECKBUTTON_UNCHECKED_XPOS;
2244   gd_x3 = DOOR_GFX_PAGEX4 + ED_CHECKBUTTON_CHECKED_XPOS;
2245   gd_x4 = DOOR_GFX_PAGEX3 + ED_CHECKBUTTON_CHECKED_XPOS;
2246   gd_y  = DOOR_GFX_PAGEY1 + ED_RADIOBUTTON_YPOS;
2247
2248   for (i=0; i<ED_NUM_RADIOBUTTONS; i++)
2249   {
2250     int id = radiobutton_info[i].gadget_id;
2251
2252     checked =
2253       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
2254
2255     gi = CreateGadget(GDI_CUSTOM_ID, id,
2256                       GDI_CUSTOM_TYPE_ID, i,
2257                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
2258                       GDI_X, SX + radiobutton_info[i].x,
2259                       GDI_Y, SY + radiobutton_info[i].y,
2260                       GDI_WIDTH, ED_CHECKBUTTON_XSIZE,
2261                       GDI_HEIGHT, ED_CHECKBUTTON_YSIZE,
2262                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
2263                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
2264                       GDI_CHECKED, checked,
2265                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2266                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2267                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x3, gd_y,
2268                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x4, gd_y,
2269                       GDI_EVENT_MASK, event_mask,
2270                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2271                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
2272                       GDI_END);
2273
2274     if (gi == NULL)
2275       Error(ERR_EXIT, "cannot create gadget");
2276
2277     level_editor_gadget[id] = gi;
2278   }
2279
2280   for (i=0; i<ED_NUM_CHECKBUTTONS; i++)
2281   {
2282     int id = checkbutton_info[i].gadget_id;
2283
2284     if (id == GADGET_ID_STICK_ELEMENT)
2285       gd_y  = DOOR_GFX_PAGEY1 + ED_STICKYBUTTON_YPOS;
2286     else
2287       gd_y  = DOOR_GFX_PAGEY1 + ED_CHECKBUTTON_YPOS;
2288
2289     gi = CreateGadget(GDI_CUSTOM_ID, id,
2290                       GDI_CUSTOM_TYPE_ID, i,
2291                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
2292                       GDI_X, SX + checkbutton_info[i].x,
2293                       GDI_Y, SY + checkbutton_info[i].y,
2294                       GDI_WIDTH, ED_CHECKBUTTON_XSIZE,
2295                       GDI_HEIGHT, ED_CHECKBUTTON_YSIZE,
2296                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
2297                       GDI_CHECKED, *checkbutton_info[i].value,
2298                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2299                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2300                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x3, gd_y,
2301                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x4, gd_y,
2302                       GDI_EVENT_MASK, event_mask,
2303                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2304                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
2305                       GDI_END);
2306
2307     if (gi == NULL)
2308       Error(ERR_EXIT, "cannot create gadget");
2309
2310     level_editor_gadget[id] = gi;
2311   }
2312 }
2313
2314 void CreateLevelEditorGadgets()
2315 {
2316   ReinitializeElementList();
2317
2318   CreateControlButtons();
2319   CreateCounterButtons();
2320   CreateDrawingAreas();
2321   CreateTextInputGadgets();
2322   CreateScrollbarGadgets();
2323   CreateCheckbuttonGadgets();
2324 }
2325
2326 void FreeLevelEditorGadgets()
2327 {
2328   int i;
2329
2330   for (i=0; i<NUM_EDITOR_GADGETS; i++)
2331     FreeGadget(level_editor_gadget[i]);
2332 }
2333
2334 static void MapCounterButtons(int id)
2335 {
2336   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_down]);
2337   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_text]);
2338   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_up]);
2339 }
2340
2341 static void MapControlButtons()
2342 {
2343   int counter_id;
2344   int i;
2345
2346   /* map toolbox buttons */
2347   for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
2348     MapGadget(level_editor_gadget[i]);
2349
2350   /* map buttons to select elements */
2351   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
2352     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
2353   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
2354   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
2355   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
2356
2357   /* map buttons to select level */
2358   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
2359   ModifyEditorCounterLimits(counter_id,
2360                             leveldir_current->first_level,
2361                             leveldir_current->last_level);
2362   ModifyEditorCounter(counter_id, *counterbutton_info[counter_id].value);
2363   MapCounterButtons(counter_id);
2364 }
2365
2366 static void MapDrawingArea(int id)
2367 {
2368   MapGadget(level_editor_gadget[id]);
2369 }
2370
2371 static void MapTextInputGadget(int id)
2372 {
2373   MapGadget(level_editor_gadget[textinput_info[id].gadget_id]);
2374 }
2375
2376 static void MapRadiobuttonGadget(int id)
2377 {
2378   MapGadget(level_editor_gadget[radiobutton_info[id].gadget_id]);
2379 }
2380
2381 static void MapCheckbuttonGadget(int id)
2382 {
2383   MapGadget(level_editor_gadget[checkbutton_info[id].gadget_id]);
2384 }
2385
2386 static void MapMainDrawingArea()
2387 {
2388   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
2389   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
2390   int i;
2391
2392   for (i=ED_SCROLLBUTTON_ID_AREA_FIRST; i<=ED_SCROLLBUTTON_ID_AREA_LAST; i++)
2393   {
2394     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
2395           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
2396          no_horizontal_scrollbar) ||
2397         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
2398           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
2399          no_vertical_scrollbar))
2400       continue;
2401
2402     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
2403   }
2404
2405   for (i=ED_SCROLLBAR_ID_AREA_FIRST; i<=ED_SCROLLBAR_ID_AREA_LAST; i++)
2406   {
2407     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
2408         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
2409       continue;
2410
2411     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
2412   }
2413
2414   MapDrawingArea(GADGET_ID_DRAWING_LEVEL);
2415 }
2416
2417 static void UnmapDrawingArea(int id)
2418 {
2419   UnmapGadget(level_editor_gadget[id]);
2420 }
2421
2422 void UnmapLevelEditorWindowGadgets()
2423 {
2424   int i;
2425
2426   for (i=0; i<NUM_EDITOR_GADGETS; i++)
2427     if (level_editor_gadget[i]->x < SX + SXSIZE)
2428       UnmapGadget(level_editor_gadget[i]);
2429 }
2430
2431 void UnmapLevelEditorGadgets()
2432 {
2433   int i;
2434
2435   for (i=0; i<NUM_EDITOR_GADGETS; i++)
2436     UnmapGadget(level_editor_gadget[i]);
2437 }
2438
2439 static void ResetUndoBuffer()
2440 {
2441   undo_buffer_position = -1;
2442   undo_buffer_steps = -1;
2443   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
2444 }
2445
2446 static void DrawEditModeWindow()
2447 {
2448   if (edit_mode == ED_MODE_INFO)
2449     DrawLevelInfoWindow();
2450   else if (edit_mode == ED_MODE_PROPERTIES)
2451     DrawPropertiesWindow();
2452   else  /* edit_mode == ED_MODE_DRAWING */
2453     DrawDrawingWindow();
2454 }
2455
2456 static boolean LevelChanged()
2457 {
2458   boolean level_changed = FALSE;
2459   int x, y;
2460
2461   for(y=0; y<lev_fieldy; y++)
2462     for(x=0; x<lev_fieldx; x++)
2463       if (Feld[x][y] != Ur[x][y])
2464         level_changed = TRUE;
2465
2466   return level_changed;
2467 }
2468
2469 static boolean LevelContainsPlayer()
2470 {
2471   boolean player_found = FALSE;
2472   int x, y;
2473
2474   for(y=0; y<lev_fieldy; y++)
2475     for(x=0; x<lev_fieldx; x++)
2476       if (Feld[x][y] == EL_PLAYER_1 ||
2477           Feld[x][y] == EL_SP_MURPHY)
2478         player_found = TRUE;
2479
2480   return player_found;
2481 }
2482
2483 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
2484                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
2485 {
2486   int x, y;
2487
2488   for(x=0; x<lev_fieldx; x++)
2489     for(y=0; y<lev_fieldy; y++)
2490       dst[x][y] = src[x][y];
2491 }
2492
2493 static void CopyCustomElementPropertiesToEditor()
2494 {
2495   int i;
2496
2497   for (i=0; i < NUM_CUSTOM_ELEMENTS; i++)
2498   {
2499     int element = EL_CUSTOM_START + i;
2500     int properties = Properties1[element];
2501
2502     custom_element_properties[i].indestructible =
2503       ((properties & EP_BIT_INDESTRUCTIBLE) != 0 ? TRUE : FALSE);
2504
2505     custom_element_properties[i].can_fall =
2506       ((properties & EP_BIT_CAN_FALL) != 0 ? TRUE : FALSE);
2507
2508     custom_element_properties[i].can_smash =
2509       ((properties & EP_BIT_CAN_SMASH) != 0 ? TRUE : FALSE);
2510
2511     custom_element_properties[i].pushable =
2512       ((properties & EP_BIT_PUSHABLE) != 0 ? TRUE : FALSE);
2513
2514     custom_element_properties[i].slippery =
2515       ((properties & EP_BIT_SLIPPERY) != 0 ? TRUE : FALSE);
2516   }
2517 }
2518
2519 static void CopyCustomElementPropertiesToGame()
2520 {
2521   int i;
2522
2523   for (i=0; i < NUM_CUSTOM_ELEMENTS; i++)
2524   {
2525     int element = EL_CUSTOM_START + i;
2526
2527     Properties1[element] = EP_BITMASK_DEFAULT;
2528
2529     if (custom_element_properties[i].indestructible)
2530       Properties1[element] |= EP_BIT_INDESTRUCTIBLE;
2531     else
2532       Properties1[element] &= ~EP_BIT_INDESTRUCTIBLE;
2533
2534     if (custom_element_properties[i].can_fall)
2535       Properties1[element] |= EP_BIT_CAN_FALL;
2536     else
2537       Properties1[element] &= ~EP_BIT_CAN_FALL;
2538
2539     if (custom_element_properties[i].can_smash)
2540       Properties1[element] |= EP_BIT_CAN_SMASH;
2541     else
2542       Properties1[element] &= ~EP_BIT_CAN_SMASH;
2543
2544     if (custom_element_properties[i].pushable)
2545       Properties1[element] |= EP_BIT_PUSHABLE;
2546     else
2547       Properties1[element] &= ~EP_BIT_PUSHABLE;
2548
2549     if (custom_element_properties[i].slippery)
2550       Properties1[element] |= EP_BIT_SLIPPERY;
2551     else
2552       Properties1[element] &= ~EP_BIT_SLIPPERY;
2553   }
2554 }
2555
2556 void DrawLevelEd()
2557 {
2558   CloseDoor(DOOR_CLOSE_ALL);
2559   OpenDoor(DOOR_OPEN_2 | DOOR_NO_DELAY);
2560
2561   if (level_editor_test_game)
2562   {
2563     CopyPlayfield(Ur, Feld);
2564     CopyPlayfield(FieldBackup, Ur);
2565
2566     level_editor_test_game = FALSE;
2567   }
2568   else
2569   {
2570     edit_mode = ED_MODE_DRAWING;
2571
2572     ResetUndoBuffer();
2573     level_xpos = -1;
2574     level_ypos = -1;
2575   }
2576
2577   /* copy default editor door content to main double buffer */
2578   BlitBitmap(graphic_info[IMG_GLOBAL_DOOR].bitmap, drawto,
2579              DOOR_GFX_PAGEX6, DOOR_GFX_PAGEY1, DXSIZE, DYSIZE, DX, DY);
2580
2581   /* draw mouse button brush elements */
2582   DrawMiniGraphicExt(drawto,
2583                      DX + ED_WIN_MB_LEFT_XPOS, DY + ED_WIN_MB_LEFT_YPOS,
2584                      el2edimg(new_element1));
2585   DrawMiniGraphicExt(drawto,
2586                      DX + ED_WIN_MB_MIDDLE_XPOS, DY + ED_WIN_MB_MIDDLE_YPOS,
2587                      el2edimg(new_element2));
2588   DrawMiniGraphicExt(drawto,
2589                      DX + ED_WIN_MB_RIGHT_XPOS, DY + ED_WIN_MB_RIGHT_YPOS,
2590                      el2edimg(new_element3));
2591
2592   /* draw bigger door */
2593   DrawSpecialEditorDoor();
2594
2595   /* draw new control window */
2596   BlitBitmap(graphic_info[IMG_GLOBAL_DOOR].bitmap, drawto,
2597              DOOR_GFX_PAGEX8, 236, EXSIZE, EYSIZE, EX, EY);
2598
2599   redraw_mask |= REDRAW_ALL;
2600
2601   ReinitializeElementListButtons();     /* only needed after setup changes */
2602
2603   UnmapTapeButtons();
2604   MapControlButtons();
2605
2606   /* copy actual editor door content to door double buffer for OpenDoor() */
2607   BlitBitmap(drawto, bitmap_db_door,
2608              DX, DY, DXSIZE, DYSIZE, DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
2609
2610   DrawEditModeWindow();
2611
2612   OpenDoor(DOOR_OPEN_1);
2613 }
2614
2615 static void AdjustDrawingAreaGadgets()
2616 {
2617   int ed_xsize = lev_fieldx + 2;
2618   int ed_ysize = lev_fieldy + 2;
2619   int max_ed_fieldx = MAX_ED_FIELDX;
2620   int max_ed_fieldy = MAX_ED_FIELDY;
2621   boolean horizontal_scrollbar_needed;
2622   boolean vertical_scrollbar_needed;
2623   int x, y, width, height;
2624   int xoffset, yoffset;
2625
2626   /* check if we need any scrollbars */
2627   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
2628   vertical_scrollbar_needed = (ed_ysize > max_ed_fieldy);
2629
2630   /* check if we have a smaller editor field because of scrollbars */
2631   if (horizontal_scrollbar_needed)
2632     max_ed_fieldy = MAX_ED_FIELDY - 1;
2633   if (vertical_scrollbar_needed)
2634     max_ed_fieldx = MAX_ED_FIELDX - 1;
2635
2636   /* check again if we now need more scrollbars because of less space */
2637   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
2638   vertical_scrollbar_needed = (ed_ysize > max_ed_fieldy);
2639
2640   /* check if editor field gets even smaller after adding new scrollbars */
2641   if (horizontal_scrollbar_needed)
2642     max_ed_fieldy = MAX_ED_FIELDY - 1;
2643   if (vertical_scrollbar_needed)
2644     max_ed_fieldx = MAX_ED_FIELDX - 1;
2645
2646   ed_fieldx = (ed_xsize < MAX_ED_FIELDX ? ed_xsize : max_ed_fieldx);
2647   ed_fieldy = (ed_ysize < MAX_ED_FIELDY ? ed_ysize : max_ed_fieldy);
2648
2649   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
2650                GDI_WIDTH, ed_fieldx * MINI_TILEX,
2651                GDI_HEIGHT, ed_fieldy * MINI_TILEY,
2652                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
2653                GDI_END);
2654
2655   xoffset = (ed_fieldx == MAX_ED_FIELDX ? ED_SCROLLBUTTON_XSIZE : 0);
2656   yoffset = (ed_fieldy == MAX_ED_FIELDY ? ED_SCROLLBUTTON_YSIZE : 0);
2657
2658   x = SX + scrollbutton_info[ED_SCROLLBUTTON_ID_AREA_RIGHT].x + xoffset;
2659   y = SX + scrollbutton_info[ED_SCROLLBUTTON_ID_AREA_DOWN].y + yoffset;
2660
2661   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT], GDI_X, x, GDI_END);
2662   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN], GDI_Y, y, GDI_END);
2663
2664   width = scrollbar_info[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width + xoffset;
2665   height = scrollbar_info[ED_SCROLLBAR_ID_AREA_VERTICAL].height + yoffset;
2666
2667   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
2668                GDI_WIDTH, width,
2669                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
2670                GDI_END);
2671   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
2672                GDI_HEIGHT, height,
2673                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
2674                GDI_END);
2675 }
2676
2677 static void AdjustLevelScrollPosition()
2678 {
2679   if (level_xpos < -1)
2680     level_xpos = -1;
2681   if (level_xpos > lev_fieldx - ed_fieldx + 1)
2682     level_xpos = lev_fieldx - ed_fieldx + 1;
2683   if (lev_fieldx < ed_fieldx - 2)
2684     level_xpos = -1;
2685
2686   if (level_ypos < -1)
2687     level_ypos = -1;
2688   if (level_ypos > lev_fieldy - ed_fieldy + 1)
2689     level_ypos = lev_fieldy - ed_fieldy + 1;
2690   if (lev_fieldy < ed_fieldy - 2)
2691     level_ypos = -1;
2692 }
2693
2694 static void AdjustEditorScrollbar(int id)
2695 {
2696   struct GadgetInfo *gi = level_editor_gadget[id];
2697   int items_max, items_visible, item_position;
2698
2699   if (id == GADGET_ID_SCROLL_HORIZONTAL)
2700   {
2701     items_max = MAX(lev_fieldx + 2, ed_fieldx);
2702     items_visible = ed_fieldx;
2703     item_position = level_xpos + 1;
2704   }
2705   else
2706   {
2707     items_max = MAX(lev_fieldy + 2, ed_fieldy);
2708     items_visible = ed_fieldy;
2709     item_position = level_ypos + 1;
2710   }
2711
2712   if (item_position > items_max - items_visible)
2713     item_position = items_max - items_visible;
2714
2715   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
2716                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
2717 }
2718
2719 static void ModifyEditorTextInput(int textinput_id, char *new_text)
2720 {
2721   int gadget_id = textinput_info[textinput_id].gadget_id;
2722   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
2723
2724   ModifyGadget(gi, GDI_TEXT_VALUE, new_text, GDI_END);
2725 }
2726
2727 static void ModifyEditorCounter(int counter_id, int new_value)
2728 {
2729   int *counter_value = counterbutton_info[counter_id].value;
2730   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
2731   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
2732
2733   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
2734
2735   if (counter_value != NULL)
2736     *counter_value = gi->text.number_value;
2737 }
2738
2739 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
2740 {
2741   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
2742   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
2743
2744   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
2745 }
2746
2747 static void PickDrawingElement(int button, int element)
2748 {
2749   if (button < 1 || button > 3)
2750     return;
2751
2752   if (button == 1)
2753   {
2754     new_element1 = element;
2755     DrawMiniGraphicExt(drawto,
2756                        DX + ED_WIN_MB_LEFT_XPOS, DY + ED_WIN_MB_LEFT_YPOS,
2757                        el2edimg(new_element1));
2758   }
2759   else if (button == 2)
2760   {
2761     new_element2 = element;
2762     DrawMiniGraphicExt(drawto,
2763                        DX + ED_WIN_MB_MIDDLE_XPOS, DY + ED_WIN_MB_MIDDLE_YPOS,
2764                        el2edimg(new_element2));
2765   }
2766   else
2767   {
2768     new_element3 = element;
2769     DrawMiniGraphicExt(drawto,
2770                        DX + ED_WIN_MB_RIGHT_XPOS, DY + ED_WIN_MB_RIGHT_YPOS,
2771                        el2edimg(new_element3));
2772   }
2773
2774   redraw_mask |= REDRAW_DOOR_1;
2775 }
2776
2777 static void DrawDrawingWindow()
2778 {
2779   SetMainBackgroundImage(IMG_UNDEFINED);
2780   ClearWindow();
2781   UnmapLevelEditorWindowGadgets();
2782
2783   AdjustDrawingAreaGadgets();
2784   AdjustLevelScrollPosition();
2785   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
2786   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
2787
2788   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
2789   MapMainDrawingArea();
2790 }
2791
2792 static void DrawElementBorder(int dest_x, int dest_y, int width, int height)
2793 {
2794   int border_graphic = IMG_EDITOR_ELEMENT_BORDER;
2795   Bitmap *src_bitmap;
2796   int src_x, src_y;
2797   int num_mini_tilex = width / MINI_TILEX + 1;
2798   int num_mini_tiley = width / MINI_TILEY + 1;
2799   int x, y;
2800
2801   getMiniGraphicSource(border_graphic, &src_bitmap, &src_x, &src_y);
2802
2803   for (y=0; y < num_mini_tiley; y++)
2804     for (x=0; x < num_mini_tilex; x++)
2805       BlitBitmap(src_bitmap, drawto, src_x, src_y, MINI_TILEX, MINI_TILEY,
2806                  dest_x - MINI_TILEX / 2 + x * MINI_TILEX,
2807                  dest_y - MINI_TILEY / 2 + y * MINI_TILEY);
2808
2809   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
2810 }
2811
2812 static void DrawRandomPlacementBackgroundArea()
2813 {
2814   int area_x = ED_AREA_RANDOM_BACKGROUND_XPOS / MINI_TILEX;
2815   int area_y = ED_AREA_RANDOM_BACKGROUND_YPOS / MINI_TILEY;
2816   int area_sx = SX + ED_AREA_RANDOM_BACKGROUND_XPOS;
2817   int area_sy = SY + ED_AREA_RANDOM_BACKGROUND_YPOS;
2818
2819   ElementContent[0][0][0] = random_placement_background_element;
2820
2821   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY);
2822   DrawMiniElement(area_x, area_y, ElementContent[0][0][0]);
2823
2824   MapDrawingArea(GADGET_ID_RANDOM_BACKGROUND);
2825 }
2826
2827 static void DrawLevelInfoWindow()
2828 {
2829   char infotext[MAX_OUTPUT_LINESIZE + 1];
2830   int max_infotext_len = getMaxInfoTextLength();
2831   int xoffset_above = 0;
2832   int yoffset_above = -(MINI_TILEX + ED_GADGET_DISTANCE);
2833   int xoffset_right = getCounterGadgetWidth();
2834   int yoffset_right = ED_BORDER_SIZE;
2835   int xoffset_right2 = ED_CHECKBUTTON_XSIZE + 2 * ED_GADGET_DISTANCE;
2836   int yoffset_right2 = ED_BORDER_SIZE;
2837   int i, x, y;
2838
2839   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
2840   ClearWindow();
2841   UnmapLevelEditorWindowGadgets();
2842
2843   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS_YPOS,
2844            "Level Settings", FONT_TITLE_1);
2845   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS2_YPOS,
2846            "Editor Settings", FONT_TITLE_1);
2847
2848   /* draw counter gadgets */
2849   for (i=ED_COUNTER_ID_LEVEL_FIRST; i<=ED_COUNTER_ID_LEVEL_LAST; i++)
2850   {
2851     if (counterbutton_info[i].infotext_above)
2852     {
2853       x = counterbutton_info[i].x + xoffset_above;
2854       y = counterbutton_info[i].y + yoffset_above;
2855
2856       sprintf(infotext, "%s:", counterbutton_info[i].infotext_above);
2857       infotext[max_infotext_len] = '\0';
2858       DrawTextF(x, y, FONT_TEXT_1, infotext);
2859     }
2860
2861     if (counterbutton_info[i].infotext_right)
2862     {
2863       x = counterbutton_info[i].x + xoffset_right;
2864       y = counterbutton_info[i].y + yoffset_right;
2865
2866       sprintf(infotext, "%s", counterbutton_info[i].infotext_right);
2867       infotext[max_infotext_len] = '\0';
2868       DrawTextF(x, y, FONT_TEXT_1, infotext);
2869     }
2870
2871     ModifyEditorCounter(i, *counterbutton_info[i].value);
2872     MapCounterButtons(i);
2873   }
2874
2875   /* draw text input gadgets */
2876   for (i=ED_TEXTINPUT_ID_LEVEL_FIRST; i<=ED_TEXTINPUT_ID_LEVEL_LAST; i++)
2877   {
2878     x = textinput_info[i].x + xoffset_above;
2879     y = textinput_info[i].y + yoffset_above;
2880
2881     sprintf(infotext, "%s:", textinput_info[i].infotext);
2882     infotext[max_infotext_len] = '\0';
2883
2884     DrawTextF(x, y, FONT_TEXT_1, infotext);
2885     ModifyEditorTextInput(i, textinput_info[i].value);
2886     MapTextInputGadget(i);
2887   }
2888
2889   /* draw radiobutton gadgets */
2890   for (i=ED_RADIOBUTTON_ID_LEVEL_FIRST; i<=ED_RADIOBUTTON_ID_LEVEL_LAST; i++)
2891   {
2892     boolean checked =
2893       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
2894
2895     x = radiobutton_info[i].x + xoffset_right2;
2896     y = radiobutton_info[i].y + yoffset_right2;
2897
2898     DrawTextF(x, y, FONT_TEXT_1, radiobutton_info[i].text);
2899     ModifyGadget(level_editor_gadget[radiobutton_info[i].gadget_id],
2900                  GDI_CHECKED, checked, GDI_END);
2901     MapRadiobuttonGadget(i);
2902   }
2903
2904   /* draw checkbutton gadgets */
2905   for (i=ED_CHECKBUTTON_ID_LEVEL_FIRST; i<=ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
2906   {
2907     x = checkbutton_info[i].x + xoffset_right2;
2908     y = checkbutton_info[i].y + yoffset_right2;
2909
2910     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
2911     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
2912                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
2913     MapCheckbuttonGadget(i);
2914   }
2915
2916   /* draw drawing area */
2917   DrawRandomPlacementBackgroundArea();
2918 }
2919
2920 static void DrawAmoebaContentArea()
2921 {
2922   int area_x = ED_AREA_ELEM_CONTENT_XPOS / MINI_TILEX;
2923   int area_y = ED_AREA_ELEM_CONTENT_YPOS / MINI_TILEY;
2924   int area_sx = SX + ED_AREA_ELEM_CONTENT_XPOS;
2925   int area_sy = SY + ED_AREA_ELEM_CONTENT_YPOS;
2926
2927   ElementContent[0][0][0] = level.amoeba_content;
2928
2929   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY);
2930   DrawMiniElement(area_x, area_y, ElementContent[0][0][0]);
2931
2932   DrawText(area_sx + TILEX, area_sy + 1, "Content of amoeba", FONT_TEXT_1);
2933
2934   MapDrawingArea(GADGET_ID_AMOEBA_CONTENT);
2935 }
2936
2937 static void DrawElementContentAreas()
2938 {
2939   int counter_id = ED_COUNTER_ID_ELEM_CONTENT;
2940   int area_x = ED_AREA_ELEM_CONTENT_XPOS / MINI_TILEX;
2941   int area_y = ED_AREA_ELEM_CONTENT_YPOS / MINI_TILEY;
2942   int area_sx = SX + ED_AREA_ELEM_CONTENT_XPOS;
2943   int area_sy = SY + ED_AREA_ELEM_CONTENT_YPOS;
2944   int xoffset_right = getCounterGadgetWidth();
2945   int yoffset_right = ED_BORDER_SIZE;
2946   int i, x, y;
2947
2948   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
2949     for (y=0; y<3; y++)
2950       for (x=0; x<3; x++)
2951         ElementContent[i][x][y] = level.yam_content[i][x][y];
2952
2953   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
2954     UnmapDrawingArea(GADGET_ID_ELEM_CONTENT_0 + i);
2955
2956   /* display counter to choose number of element content areas */
2957   x = counterbutton_info[counter_id].x + xoffset_right;
2958   y = counterbutton_info[counter_id].y + yoffset_right;
2959   DrawTextF(x, y, FONT_TEXT_1, "number of content areas");
2960
2961   ModifyEditorCounter(counter_id, *counterbutton_info[counter_id].value);
2962   MapCounterButtons(counter_id);
2963
2964   /* delete content areas in case of reducing number of them */
2965   DrawBackground(SX, area_sy - MINI_TILEX, SXSIZE, 12 * MINI_TILEY);
2966
2967   for (i=0; i<level.num_yam_contents; i++)
2968     DrawElementBorder(area_sx + 5 * (i % 4) * MINI_TILEX,
2969                       area_sy + 6 * (i / 4) * MINI_TILEY,
2970                       3 * MINI_TILEX, 3 * MINI_TILEY);
2971
2972   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 0 * MINI_TILEY + 1,
2973            "Content", FONT_TEXT_1);
2974   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 1 * MINI_TILEY + 1,
2975            "when",    FONT_TEXT_1);
2976   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 2 * MINI_TILEY + 1,
2977            "smashed", FONT_TEXT_1);
2978
2979   for (i=0; i<level.num_yam_contents; i++)
2980   {
2981     for (y=0; y<3; y++)
2982       for (x=0; x<3; x++)
2983         DrawMiniElement(area_x + 5 * (i % 4) + x, area_y + 6 * (i / 4) + y,
2984                         ElementContent[i][x][y]);
2985
2986     DrawTextF(area_sx - SX + 5 * (i % 4) * MINI_TILEX + MINI_TILEX + 1,
2987               area_sy - SY + 6 * (i / 4) * MINI_TILEY + 4 * MINI_TILEY - 4,
2988               FONT_TEXT_1, "%d", i + 1);
2989   }
2990
2991   for (i=0; i<level.num_yam_contents; i++)
2992     MapDrawingArea(GADGET_ID_ELEM_CONTENT_0 + i);
2993 }
2994
2995 #define TEXT_COLLECTING         "Score for collecting"
2996 #define TEXT_SMASHING           "Score for smashing"
2997 #define TEXT_CRACKING           "Score for cracking"
2998 #define TEXT_SPEED              "Speed of amoeba growth"
2999 #define TEXT_DURATION           "Duration when activated"
3000
3001 static void DrawPropertiesWindow()
3002 {
3003   int counter_id = ED_COUNTER_ID_ELEM_SCORE;
3004   int num_elements_in_level;
3005   float percentage;
3006   int xoffset_right = getCounterGadgetWidth();
3007   int yoffset_right = ED_BORDER_SIZE;
3008   int xoffset_right2 = ED_CHECKBUTTON_XSIZE + 2 * ED_GADGET_DISTANCE;
3009   int yoffset_right2 = ED_BORDER_SIZE;
3010   int xstart = 2;
3011   int ystart = 4;
3012   int i, x, y;
3013   static struct
3014   {
3015     int element;
3016     int *value;
3017     char *text;
3018   } elements_with_counter[] =
3019   {
3020     { EL_EMERALD,       &level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3021     { EL_BD_DIAMOND,    &level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3022     { EL_EMERALD_YELLOW,&level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3023     { EL_EMERALD_RED,   &level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3024     { EL_EMERALD_PURPLE,&level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3025     { EL_DIAMOND,       &level.score[SC_DIAMANT],       TEXT_COLLECTING },
3026     { EL_BUG_RIGHT,     &level.score[SC_KAEFER],        TEXT_SMASHING },
3027     { EL_BUG_UP,        &level.score[SC_KAEFER],        TEXT_SMASHING },
3028     { EL_BUG_LEFT,      &level.score[SC_KAEFER],        TEXT_SMASHING },
3029     { EL_BUG_DOWN,      &level.score[SC_KAEFER],        TEXT_SMASHING },
3030     { EL_BD_BUTTERFLY_RIGHT,&level.score[SC_KAEFER],    TEXT_SMASHING },
3031     { EL_BD_BUTTERFLY_UP,   &level.score[SC_KAEFER],    TEXT_SMASHING },
3032     { EL_BD_BUTTERFLY_LEFT, &level.score[SC_KAEFER],    TEXT_SMASHING },
3033     { EL_BD_BUTTERFLY_DOWN, &level.score[SC_KAEFER],    TEXT_SMASHING },
3034     { EL_SPACESHIP_RIGHT,&level.score[SC_FLIEGER],      TEXT_SMASHING },
3035     { EL_SPACESHIP_UP,   &level.score[SC_FLIEGER],      TEXT_SMASHING },
3036     { EL_SPACESHIP_LEFT, &level.score[SC_FLIEGER],      TEXT_SMASHING },
3037     { EL_SPACESHIP_DOWN, &level.score[SC_FLIEGER],      TEXT_SMASHING },
3038     { EL_BD_FIREFLY_RIGHT,&level.score[SC_FLIEGER],     TEXT_SMASHING },
3039     { EL_BD_FIREFLY_UP,   &level.score[SC_FLIEGER],     TEXT_SMASHING },
3040     { EL_BD_FIREFLY_LEFT, &level.score[SC_FLIEGER],     TEXT_SMASHING },
3041     { EL_BD_FIREFLY_DOWN, &level.score[SC_FLIEGER],     TEXT_SMASHING },
3042     { EL_YAMYAM,        &level.score[SC_MAMPFER],       TEXT_SMASHING },
3043     { EL_DARK_YAMYAM,   &level.score[SC_MAMPFER],       TEXT_SMASHING },
3044     { EL_ROBOT,         &level.score[SC_ROBOT],         TEXT_SMASHING },
3045     { EL_PACMAN_RIGHT,  &level.score[SC_PACMAN],        TEXT_SMASHING },
3046     { EL_PACMAN_UP,     &level.score[SC_PACMAN],        TEXT_SMASHING },
3047     { EL_PACMAN_LEFT,   &level.score[SC_PACMAN],        TEXT_SMASHING },
3048     { EL_PACMAN_DOWN,   &level.score[SC_PACMAN],        TEXT_SMASHING },
3049     { EL_NUT,           &level.score[SC_KOKOSNUSS],     TEXT_CRACKING },
3050     { EL_DYNAMITE,      &level.score[SC_DYNAMIT],       TEXT_COLLECTING },
3051     { EL_KEY_1,         &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3052     { EL_KEY_2,         &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3053     { EL_KEY_3,         &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3054     { EL_KEY_4,         &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3055     { EL_EM_KEY_1_FILE, &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3056     { EL_EM_KEY_2_FILE, &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3057     { EL_EM_KEY_3_FILE, &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3058     { EL_EM_KEY_4_FILE, &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3059     { EL_AMOEBA_WET,    &level.amoeba_speed,            TEXT_SPEED },
3060     { EL_AMOEBA_DRY,    &level.amoeba_speed,            TEXT_SPEED },
3061     { EL_AMOEBA_FULL,   &level.amoeba_speed,            TEXT_SPEED },
3062     { EL_BD_AMOEBA,     &level.amoeba_speed,            TEXT_SPEED },
3063     { EL_MAGIC_WALL,    &level.time_magic_wall,         TEXT_DURATION },
3064     { EL_ROBOT_WHEEL,   &level.time_wheel,              TEXT_DURATION },
3065     { -1, NULL, NULL }
3066   };
3067
3068   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
3069   ClearWindow();
3070   UnmapLevelEditorWindowGadgets();
3071
3072   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS_YPOS,
3073            "Element Settings", FONT_TITLE_1);
3074
3075   DrawElementBorder(SX + xstart * MINI_TILEX,
3076                     SY + ystart * MINI_TILEY + MINI_TILEY / 2,
3077                     TILEX, TILEY);
3078   DrawGraphicAnimationExt(drawto,
3079                           SX + xstart * MINI_TILEX,
3080                           SY + ystart * MINI_TILEY + MINI_TILEY / 2,
3081                           el2edimg(properties_element), -1, NO_MASKING);
3082
3083   FrameCounter = 0;     /* restart animation frame counter */
3084
3085   DrawTextF((xstart + 3) * MINI_TILEX, (ystart + 1) * MINI_TILEY,
3086             FONT_TEXT_1, getElementInfoText(properties_element));
3087
3088   num_elements_in_level = 0;
3089   for (y=0; y<lev_fieldy; y++)
3090     for (x=0; x<lev_fieldx; x++)
3091       if (Feld[x][y] == properties_element)
3092         num_elements_in_level++;
3093   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
3094
3095   DrawTextF(ED_SETTINGS_XPOS, 5 * TILEY, FONT_TEXT_1, "In this level:");
3096   DrawTextF(ED_SETTINGS_XPOS + 15 * getFontWidth(FONT_TEXT_1), 5 * TILEY,
3097             FONT_TEXT_2, "%d (%.2f%%)", num_elements_in_level,
3098             percentage);
3099
3100   /* check if there are elements where a score can be chosen for */
3101   for (i=0; elements_with_counter[i].element != -1; i++)
3102   {
3103     if (elements_with_counter[i].element == properties_element)
3104     {
3105       int x = counterbutton_info[counter_id].x + xoffset_right;
3106       int y = counterbutton_info[counter_id].y + yoffset_right;
3107
3108       counterbutton_info[counter_id].value = elements_with_counter[i].value;
3109       DrawTextF(x, y, FONT_TEXT_1, elements_with_counter[i].text);
3110
3111       ModifyEditorCounter(counter_id,  *counterbutton_info[counter_id].value);
3112       MapCounterButtons(counter_id);
3113       break;
3114     }
3115   }
3116
3117   if (HAS_CONTENT(properties_element))
3118   {
3119     /* draw stickybutton gadget */
3120     i = ED_CHECKBUTTON_ID_STICK_ELEMENT;
3121     x = checkbutton_info[i].x + xoffset_right2;
3122     y = checkbutton_info[i].y + yoffset_right2;
3123
3124     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3125     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3126                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3127     MapCheckbuttonGadget(i);
3128
3129     if (IS_AMOEBOID(properties_element))
3130       DrawAmoebaContentArea();
3131     else
3132       DrawElementContentAreas();
3133   }
3134
3135   if (IS_GEM(properties_element))
3136   {
3137     /* draw checkbutton gadget */
3138     i = ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS;
3139     x = checkbutton_info[i].x + xoffset_right2;
3140     y = checkbutton_info[i].y + yoffset_right2;
3141
3142     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3143     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3144                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3145     MapCheckbuttonGadget(i);
3146   }
3147
3148   if (IS_CUSTOM_ELEMENT(properties_element))
3149   {
3150     int nr = properties_element - EL_CUSTOM_START;
3151
3152     CopyCustomElementPropertiesToEditor();
3153
3154     /* draw checkbutton gadget */
3155     i = ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE;
3156     x = checkbutton_info[i].x + xoffset_right2;
3157     y = checkbutton_info[i].y + yoffset_right2;
3158
3159     checkbutton_info[i].value = &custom_element_properties[nr].indestructible;
3160
3161     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3162     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3163                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3164     MapCheckbuttonGadget(i);
3165
3166     /* draw checkbutton gadget */
3167     i = ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL;
3168     x = checkbutton_info[i].x + xoffset_right2;
3169     y = checkbutton_info[i].y + yoffset_right2;
3170
3171     checkbutton_info[i].value = &custom_element_properties[nr].can_fall;
3172
3173     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3174     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3175                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3176     MapCheckbuttonGadget(i);
3177
3178     /* draw checkbutton gadget */
3179     i = ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH;
3180     x = checkbutton_info[i].x + xoffset_right2;
3181     y = checkbutton_info[i].y + yoffset_right2;
3182
3183     checkbutton_info[i].value = &custom_element_properties[nr].can_smash;
3184
3185     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3186     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3187                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3188     MapCheckbuttonGadget(i);
3189
3190     /* draw checkbutton gadget */
3191     i = ED_CHECKBUTTON_ID_CUSTOM_PUSHABLE;
3192     x = checkbutton_info[i].x + xoffset_right2;
3193     y = checkbutton_info[i].y + yoffset_right2;
3194
3195     checkbutton_info[i].value = &custom_element_properties[nr].pushable;
3196
3197     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3198     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3199                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3200     MapCheckbuttonGadget(i);
3201
3202     /* draw checkbutton gadget */
3203     i = ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY;
3204     x = checkbutton_info[i].x + xoffset_right2;
3205     y = checkbutton_info[i].y + yoffset_right2;
3206
3207     checkbutton_info[i].value = &custom_element_properties[nr].slippery;
3208
3209     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3210     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3211                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3212     MapCheckbuttonGadget(i);
3213   }
3214 }
3215
3216 static void DrawLineElement(int sx, int sy, int element, boolean change_level)
3217 {
3218   int lx = sx + level_xpos;
3219   int ly = sy + level_ypos;
3220
3221   DrawMiniElement(sx, sy, (element < 0 ? Feld[lx][ly] : element));
3222
3223   if (change_level)
3224     Feld[lx][ly] = element;
3225 }
3226
3227 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
3228                      int element, boolean change_level)
3229 {
3230   if (from_y == to_y)                   /* horizontal line */
3231   {
3232     int x;
3233     int y = from_y;
3234
3235     if (from_x > to_x)
3236       swap_numbers(&from_x, &to_x);
3237
3238     for (x=from_x; x<=to_x; x++)
3239       DrawLineElement(x, y, element, change_level);
3240   }
3241   else if (from_x == to_x)              /* vertical line */
3242   {
3243     int x = from_x;
3244     int y;
3245
3246     if (from_y > to_y)
3247       swap_numbers(&from_y, &to_y);
3248
3249     for (y=from_y; y<=to_y; y++)
3250       DrawLineElement(x, y, element, change_level);
3251   }
3252   else                                  /* diagonal line */
3253   {
3254     int len_x = ABS(to_x - from_x);
3255     int len_y = ABS(to_y - from_y);
3256     int x, y;
3257
3258     if (len_y < len_x)                  /* a < 1 */
3259     {
3260       float a = (float)len_y / (float)len_x;
3261
3262       if (from_x > to_x)
3263         swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
3264
3265       for (x=0; x<=len_x; x++)
3266       {
3267         y = (int)(a * x + 0.5) * (to_y < from_y ? -1 : +1);
3268         DrawLineElement(from_x + x, from_y + y, element, change_level);
3269       }
3270     }
3271     else                                /* a >= 1 */
3272     {
3273       float a = (float)len_x / (float)len_y;
3274
3275       if (from_y > to_y)
3276         swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
3277
3278       for (y=0; y<=len_y; y++)
3279       {
3280         x = (int)(a * y + 0.5) * (to_x < from_x ? -1 : +1);
3281         DrawLineElement(from_x + x, from_y + y, element, change_level);
3282       }
3283     }
3284   }
3285 }
3286
3287 static void DrawRectangle(int from_x, int from_y, int to_x, int to_y,
3288                           int element, boolean change_level)
3289 {
3290   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
3291   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
3292   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
3293   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
3294 }
3295
3296 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
3297                           int element, boolean change_level)
3298 {
3299   int y;
3300
3301   if (from_y > to_y)
3302     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
3303
3304   for (y=from_y; y<=to_y; y++)
3305     DrawLine(from_x, y, to_x, y, element, change_level);
3306 }
3307
3308 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
3309                        int element, boolean change_level)
3310 {
3311   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
3312   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
3313   int len_x = ABS(to_x - from_x);
3314   int len_y = ABS(to_y - from_y);
3315   int radius, x, y;
3316
3317   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
3318
3319   /* not optimal (some points get drawn twice) but simple,
3320      and fast enough for the few points we are drawing */
3321
3322   for (x=0; x<=radius; x++)
3323   {
3324     int sx, sy, lx, ly;
3325
3326     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
3327
3328     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
3329     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
3330     lx = sx + level_xpos;
3331     ly = sy + level_ypos;
3332
3333     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
3334       DrawLineElement(sx, sy, element, change_level);
3335   }
3336
3337   for (y=0; y<=radius; y++)
3338   {
3339     int sx, sy, lx, ly;
3340
3341     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
3342
3343     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
3344     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
3345     lx = sx + level_xpos;
3346     ly = sy + level_ypos;
3347
3348     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
3349       DrawLineElement(sx, sy, element, change_level);
3350   }
3351 }
3352
3353 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
3354                     int element, boolean change_level)
3355 {
3356   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
3357   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
3358
3359   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
3360 }
3361
3362 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
3363 #if DRAW_CIRCLES_BUTTON_AVAILABLE
3364 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
3365                        int element, boolean change_level)
3366 {
3367   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
3368   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
3369   int mirror_to_x2 = from_x - (to_x2 - from_x);
3370   int mirror_to_y2 = from_y - (to_y2 - from_y);
3371
3372   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
3373   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
3374   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
3375   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element,change_level);
3376 }
3377 #endif
3378
3379 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
3380 {
3381   int from_sx, from_sy;
3382   int to_sx, to_sy;
3383
3384   if (from_x > to_x)
3385     swap_numbers(&from_x, &to_x);
3386
3387   if (from_y > to_y)
3388     swap_numbers(&from_y, &to_y);
3389
3390   from_sx = SX + from_x * MINI_TILEX;
3391   from_sy = SY + from_y * MINI_TILEY;
3392   to_sx = SX + to_x * MINI_TILEX + MINI_TILEX - 1;
3393   to_sy = SY + to_y * MINI_TILEY + MINI_TILEY - 1;
3394
3395   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
3396   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
3397   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
3398   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
3399
3400   if (from_x == to_x && from_y == to_y)
3401     MarkTileDirty(from_x/2, from_y/2);
3402   else
3403     redraw_mask |= REDRAW_FIELD;
3404 }
3405
3406 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
3407                        int element, boolean change_level)
3408 {
3409   if (element == -1 || change_level)
3410     DrawRectangle(from_x, from_y, to_x, to_y, -1, FALSE);
3411   else
3412     DrawAreaBorder(from_x, from_y, to_x, to_y);
3413 }
3414
3415 /* values for CopyBrushExt() */
3416 #define CB_AREA_TO_BRUSH        0
3417 #define CB_BRUSH_TO_CURSOR      1
3418 #define CB_BRUSH_TO_LEVEL       2
3419 #define CB_DELETE_OLD_CURSOR    3
3420
3421 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
3422                          int button, int mode)
3423 {
3424   static short brush_buffer[MAX_ED_FIELDX][MAX_ED_FIELDY];
3425   static int brush_width, brush_height;
3426   static int last_cursor_x = -1, last_cursor_y = -1;
3427   static boolean delete_old_brush;
3428   int new_element = BUTTON_ELEMENT(button);
3429   int x, y;
3430
3431   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
3432     return;
3433
3434   if (mode == CB_AREA_TO_BRUSH)
3435   {
3436     int from_lx, from_ly;
3437
3438     if (from_x > to_x)
3439       swap_numbers(&from_x, &to_x);
3440
3441     if (from_y > to_y)
3442       swap_numbers(&from_y, &to_y);
3443
3444     brush_width = to_x - from_x + 1;
3445     brush_height = to_y - from_y + 1;
3446
3447     from_lx = from_x + level_xpos;
3448     from_ly = from_y + level_ypos;
3449
3450     for (y=0; y<brush_height; y++)
3451     {
3452       for (x=0; x<brush_width; x++)
3453       {
3454         brush_buffer[x][y] = Feld[from_lx + x][from_ly + y];
3455
3456         if (button != 1)
3457           DrawLineElement(from_x + x, from_y + y, new_element, TRUE);
3458       }
3459     }
3460
3461     if (button != 1)
3462       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3463
3464     delete_old_brush = FALSE;
3465   }
3466   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
3467            mode == CB_BRUSH_TO_LEVEL)
3468   {
3469     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
3470     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
3471     int cursor_from_x = cursor_x - brush_width / 2;
3472     int cursor_from_y = cursor_y - brush_height / 2;
3473     int border_from_x = cursor_x, border_from_y = cursor_y;
3474     int border_to_x = cursor_x, border_to_y = cursor_y;
3475
3476     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
3477       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
3478
3479     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
3480         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
3481     {
3482       delete_old_brush = FALSE;
3483       return;
3484     }
3485
3486     for (y=0; y<brush_height; y++)
3487     {
3488       for (x=0; x<brush_width; x++)
3489       {
3490         int sx = cursor_from_x + x;
3491         int sy = cursor_from_y + y;
3492         int lx = sx + level_xpos;
3493         int ly = sy + level_ypos;
3494         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
3495         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
3496                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
3497                        brush_buffer[x][y] : new_element);
3498
3499         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
3500         {
3501           if (sx < border_from_x)
3502             border_from_x = sx;
3503           else if (sx > border_to_x)
3504             border_to_x = sx;
3505           if (sy < border_from_y)
3506             border_from_y = sy;
3507           else if (sy > border_to_y)
3508             border_to_y = sy;
3509
3510           DrawLineElement(sx, sy, element, change_level);
3511         }
3512       }
3513     }
3514
3515     if (mode != CB_DELETE_OLD_CURSOR)
3516       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
3517
3518     last_cursor_x = cursor_x;
3519     last_cursor_y = cursor_y;
3520     delete_old_brush = TRUE;
3521   }
3522 }
3523
3524 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
3525                             int button)
3526 {
3527   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
3528 }
3529
3530 static void CopyBrushToLevel(int x, int y, int button)
3531 {
3532   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
3533 }
3534
3535 static void CopyBrushToCursor(int x, int y)
3536 {
3537   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
3538 }
3539
3540 static void DeleteBrushFromCursor()
3541 {
3542   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
3543 }
3544
3545 static void FloodFill(int from_x, int from_y, int fill_element)
3546 {
3547   int i,x,y;
3548   int old_element;
3549   static int check[4][2] = { {-1,0}, {0,-1}, {1,0}, {0,1} };
3550   static int safety = 0;
3551
3552   /* check if starting field still has the desired content */
3553   if (Feld[from_x][from_y] == fill_element)
3554     return;
3555
3556   safety++;
3557
3558   if (safety > lev_fieldx*lev_fieldy)
3559     Error(ERR_EXIT, "Something went wrong in 'FloodFill()'. Please debug.");
3560
3561   old_element = Feld[from_x][from_y];
3562   Feld[from_x][from_y] = fill_element;
3563
3564   for(i=0;i<4;i++)
3565   {
3566     x = from_x + check[i][0];
3567     y = from_y + check[i][1];
3568
3569     if (IN_LEV_FIELD(x,y) && Feld[x][y] == old_element)
3570       FloodFill(x, y, fill_element);
3571   }
3572
3573   safety--;
3574 }
3575
3576 /* values for DrawLevelText() modes */
3577 #define TEXT_INIT               0
3578 #define TEXT_SETCURSOR          1
3579 #define TEXT_WRITECHAR          2
3580 #define TEXT_BACKSPACE          3
3581 #define TEXT_NEWLINE            4
3582 #define TEXT_END                5
3583 #define TEXT_QUERY_TYPING       6
3584
3585 static int DrawLevelText(int sx, int sy, char letter, int mode)
3586 {
3587   static short delete_buffer[MAX_LEV_FIELDX];
3588   static int start_sx, start_sy;
3589   static int last_sx, last_sy;
3590   static boolean typing = FALSE;
3591   int letter_element = EL_CHAR_ASCII0 + letter;
3592   int lx = 0, ly = 0;
3593
3594   /* map lower case letters to upper case and convert special characters */
3595   if (letter >= 'a' && letter <= 'z')
3596     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
3597   else if (letter == 'ä' || letter == 'Ä')
3598     letter_element = EL_CHAR_AE;
3599   else if (letter == 'ö' || letter == 'Ö')
3600     letter_element = EL_CHAR_OE;
3601   else if (letter == 'ü' || letter == 'Ü')
3602     letter_element = EL_CHAR_UE;
3603   else if (letter == '^')
3604     letter_element = EL_CHAR_COPYRIGHT;
3605   else
3606     letter_element = EL_CHAR_ASCII0 + letter;
3607
3608   if (mode != TEXT_INIT)
3609   {
3610     if (!typing)
3611       return FALSE;
3612
3613     if (mode != TEXT_SETCURSOR)
3614     {
3615       sx = last_sx;
3616       sy = last_sy;
3617     }
3618
3619     lx = last_sx + level_xpos;
3620     ly = last_sy + level_ypos;
3621   }
3622
3623   switch (mode)
3624   {
3625     case TEXT_INIT:
3626       if (typing)
3627         DrawLevelText(0, 0, 0, TEXT_END);
3628
3629       typing = TRUE;
3630       start_sx = last_sx = sx;
3631       start_sy = last_sy = sy;
3632       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
3633       break;
3634
3635     case TEXT_SETCURSOR:
3636       DrawMiniElement(last_sx, last_sy, Feld[lx][ly]);
3637       DrawAreaBorder(sx, sy, sx, sy);
3638       last_sx = sx;
3639       last_sy = sy;
3640       break;
3641
3642     case TEXT_WRITECHAR:
3643       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
3644       {
3645         delete_buffer[sx - start_sx] = Feld[lx][ly];
3646         Feld[lx][ly] = letter_element;
3647
3648         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
3649           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
3650         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
3651           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
3652         else
3653           DrawLevelText(0, 0, 0, TEXT_END);
3654       }
3655       break;
3656
3657     case TEXT_BACKSPACE:
3658       if (sx > start_sx)
3659       {
3660         Feld[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
3661         DrawMiniElement(sx - 1, sy, Feld[lx - 1][ly]);
3662         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
3663       }
3664       break;
3665
3666     case TEXT_NEWLINE:
3667       if (sy + 1 < ed_fieldy - 1 && ly + 1 < lev_fieldy - 1)
3668         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
3669       else
3670         DrawLevelText(0, 0, 0, TEXT_END);
3671       break;
3672
3673     case TEXT_END:
3674       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3675       DrawMiniElement(sx, sy, Feld[lx][ly]);
3676       typing = FALSE;
3677       break;
3678
3679     case TEXT_QUERY_TYPING:
3680       break;
3681
3682     default:
3683       break;
3684   }
3685
3686   return typing;
3687 }
3688
3689 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
3690                           int element, boolean change_level)
3691 {
3692   int lx = sx + level_xpos;
3693   int ly = sy + level_ypos;
3694
3695   if (element == -1)
3696     DrawMiniElement(sx, sy, Feld[lx][ly]);
3697   else
3698     DrawAreaBorder(sx, sy, sx, sy);
3699 }
3700
3701 static void CopyLevelToUndoBuffer(int mode)
3702 {
3703   static boolean accumulated_undo = FALSE;
3704   boolean new_undo_buffer_position = TRUE;
3705   int last_border_element;
3706   int x, y;
3707
3708   switch (mode)
3709   {
3710     case UNDO_IMMEDIATE:
3711       accumulated_undo = FALSE;
3712       break;
3713
3714     case UNDO_ACCUMULATE:
3715       if (accumulated_undo)
3716         new_undo_buffer_position = FALSE;
3717       accumulated_undo = TRUE;
3718       break;
3719
3720     default:
3721       break;
3722   }
3723
3724   if (new_undo_buffer_position)
3725   {
3726     /* new position in undo buffer ring */
3727     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
3728
3729     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
3730       undo_buffer_steps++;
3731   }
3732
3733   for(x=0; x<lev_fieldx; x++)
3734     for(y=0; y<lev_fieldy; y++)
3735       UndoBuffer[undo_buffer_position][x][y] = Feld[x][y];
3736
3737   /* check if drawing operation forces change of border style */
3738   last_border_element = BorderElement;
3739   SetBorderElement();
3740   if (BorderElement != last_border_element)
3741     DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3742
3743 #if 0
3744 #ifdef DEBUG
3745   printf("level saved to undo buffer\n");
3746 #endif
3747 #endif
3748 }
3749
3750 static void RandomPlacement(int new_element)
3751 {
3752   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3753   int num_free_positions;
3754   int num_percentage;
3755   int num_elements;
3756   int x, y;
3757
3758   /* determine number of free positions for the new elements */
3759   /* (maybe this statement should be formatted a bit more readable...) */
3760   num_free_positions = 0;
3761   for (x=0; x<lev_fieldx; x++)
3762     for (y=0; y<lev_fieldy; y++)
3763       if ((free_position[x][y] =
3764            ((random_placement_background_restricted &&
3765              Feld[x][y] == random_placement_background_element) ||
3766             (!random_placement_background_restricted &&
3767              Feld[x][y] != new_element))) == TRUE)
3768         num_free_positions++;
3769
3770   /* determine number of new elements to place there */
3771   num_percentage = num_free_positions * random_placement_value / 100;
3772   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
3773                   num_percentage : random_placement_value);
3774
3775   /* if not more free positions than elements to place, fill whole level */
3776   if (num_elements >= num_free_positions)
3777   {
3778     for (x=0; x<lev_fieldx; x++)
3779       for (y=0; y<lev_fieldy; y++)
3780         Feld[x][y] = new_element;
3781
3782     DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3783     CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3784     return;
3785   }
3786
3787   while (num_elements > 0)
3788   {
3789     x = RND(lev_fieldx);
3790     y = RND(lev_fieldy);
3791
3792     /* don't place element at the same position twice */
3793     if (free_position[x][y])
3794     {
3795       free_position[x][y] = FALSE;
3796       Feld[x][y] = new_element;
3797       num_elements--;
3798     }
3799   }
3800
3801   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3802   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3803 }
3804
3805 void WrapLevel(int dx, int dy)
3806 {
3807   int wrap_dx = lev_fieldx - dx;
3808   int wrap_dy = lev_fieldy - dy;
3809   int x, y;
3810
3811   for(x=0; x<lev_fieldx; x++)
3812     for(y=0; y<lev_fieldy; y++)
3813       FieldBackup[x][y] = Feld[x][y];
3814
3815   for(x=0; x<lev_fieldx; x++)
3816     for(y=0; y<lev_fieldy; y++)
3817       Feld[x][y] =
3818         FieldBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
3819
3820   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3821   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
3822 }
3823
3824 static void HandleDrawingAreas(struct GadgetInfo *gi)
3825 {
3826   static boolean started_inside_drawing_area = FALSE;
3827   int id = gi->custom_id;
3828   boolean button_press_event;
3829   boolean button_release_event;
3830   boolean inside_drawing_area = !gi->event.off_borders;
3831   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
3832   int actual_drawing_function;
3833   int button = gi->event.button;
3834   int new_element = BUTTON_ELEMENT(button);
3835   int sx = gi->event.x, sy = gi->event.y;
3836   int min_sx = 0, min_sy = 0;
3837   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
3838   int lx = 0, ly = 0;
3839   int min_lx = 0, min_ly = 0;
3840   int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
3841   int x, y;
3842
3843   /* handle info callback for each invocation of action callback */
3844   gi->callback_info(gi);
3845
3846   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
3847   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
3848
3849   /* make sure to stay inside drawing area boundaries */
3850   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
3851   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
3852
3853   if (draw_level)
3854   {
3855     /* get positions inside level field */
3856     lx = sx + level_xpos;
3857     ly = sy + level_ypos;
3858
3859     if (!IN_LEV_FIELD(lx, ly))
3860       inside_drawing_area = FALSE;
3861
3862     /* make sure to stay inside level field boundaries */
3863     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
3864     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
3865
3866     /* correct drawing area positions accordingly */
3867     sx = lx - level_xpos;
3868     sy = ly - level_ypos;
3869   }
3870
3871   if (button_press_event)
3872     started_inside_drawing_area = inside_drawing_area;
3873
3874   if (!started_inside_drawing_area)
3875     return;
3876
3877   if (!button && !button_release_event)
3878     return;
3879
3880   /* automatically switch to 'single item' drawing mode, if needed */
3881   actual_drawing_function =
3882     (draw_level ? drawing_function : GADGET_ID_SINGLE_ITEMS);
3883
3884   switch (actual_drawing_function)
3885   {
3886     case GADGET_ID_SINGLE_ITEMS:
3887       if (draw_level)
3888       {
3889         if (button_release_event)
3890         {
3891           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3892
3893           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
3894               !inside_drawing_area)
3895             DeleteBrushFromCursor();
3896         }
3897
3898         if (!button)
3899           break;
3900
3901         if (draw_with_brush)
3902         {
3903           if (!button_release_event)
3904             CopyBrushToLevel(sx, sy, button);
3905         }
3906         else if (new_element != Feld[lx][ly])
3907         {
3908           if (new_element == EL_PLAYER_1)
3909           {
3910             /* remove player at old position */
3911             for(y=0; y<lev_fieldy; y++)
3912             {
3913               for(x=0; x<lev_fieldx; x++)
3914               {
3915                 if (Feld[x][y] == EL_PLAYER_1)
3916                 {
3917                   Feld[x][y] = EL_EMPTY;
3918                   if (x - level_xpos >= 0 && x - level_xpos < ed_fieldx &&
3919                       y - level_ypos >= 0 && y - level_ypos < ed_fieldy)
3920                     DrawMiniElement(x - level_xpos, y - level_ypos,
3921                                     EL_EMPTY);
3922                 }
3923               }
3924             }
3925           }
3926
3927           Feld[lx][ly] = new_element;
3928           DrawMiniElement(sx, sy, new_element);
3929         }
3930       }
3931       else
3932       {
3933         DrawMiniGraphicExt(drawto,
3934                            gi->x + sx * MINI_TILEX,
3935                            gi->y + sy * MINI_TILEY,
3936                            el2edimg(new_element));
3937         DrawMiniGraphicExt(window,
3938                            gi->x + sx * MINI_TILEX,
3939                            gi->y + sy * MINI_TILEY,
3940                            el2edimg(new_element));
3941
3942         if (id == GADGET_ID_AMOEBA_CONTENT)
3943           level.amoeba_content = new_element;
3944         else if (id == GADGET_ID_RANDOM_BACKGROUND)
3945           random_placement_background_element = new_element;
3946         else if (id >= GADGET_ID_ELEM_CONTENT_0 &&
3947                  id <= GADGET_ID_ELEM_CONTENT_7)
3948           level.yam_content[id - GADGET_ID_ELEM_CONTENT_0][sx][sy] =
3949             new_element;
3950       }
3951       break;
3952
3953     case GADGET_ID_CONNECTED_ITEMS:
3954       {
3955         static int last_sx = -1;
3956         static int last_sy = -1;
3957
3958         if (button_release_event)
3959           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3960
3961         if (button)
3962         {
3963           if (!button_press_event)
3964             DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
3965
3966           last_sx = sx;
3967           last_sy = sy;
3968         }
3969       }
3970       break;
3971
3972     case GADGET_ID_LINE:
3973     case GADGET_ID_ARC:
3974     case GADGET_ID_RECTANGLE:
3975     case GADGET_ID_FILLED_BOX:
3976     case GADGET_ID_GRAB_BRUSH:
3977     case GADGET_ID_TEXT:
3978       {
3979         static int last_sx = -1;
3980         static int last_sy = -1;
3981         static int start_sx = -1;
3982         static int start_sy = -1;
3983         void (*draw_func)(int, int, int, int, int, boolean);
3984
3985         if (drawing_function == GADGET_ID_LINE)
3986           draw_func = DrawLine;
3987         else if (drawing_function == GADGET_ID_ARC)
3988           draw_func = DrawArc;
3989         else if (drawing_function == GADGET_ID_RECTANGLE)
3990           draw_func = DrawRectangle;
3991         else if (drawing_function == GADGET_ID_FILLED_BOX)
3992           draw_func = DrawFilledBox;
3993         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
3994           draw_func = SelectArea;
3995         else /* (drawing_function == GADGET_ID_TEXT) */
3996           draw_func = SetTextCursor;
3997
3998         if (button_press_event)
3999         {
4000           draw_func(sx, sy, sx, sy, new_element, FALSE);
4001           start_sx = last_sx = sx;
4002           start_sy = last_sy = sy;
4003
4004           if (drawing_function == GADGET_ID_TEXT)
4005             DrawLevelText(0, 0, 0, TEXT_END);
4006         }
4007         else if (button_release_event)
4008         {
4009           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
4010           if (drawing_function == GADGET_ID_GRAB_BRUSH)
4011           {
4012             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
4013             CopyBrushToCursor(sx, sy);
4014             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
4015                           MB_LEFTBUTTON);
4016             draw_with_brush = TRUE;
4017           }
4018           else if (drawing_function == GADGET_ID_TEXT)
4019             DrawLevelText(sx, sy, 0, TEXT_INIT);
4020           else
4021             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
4022         }
4023         else if (last_sx != sx || last_sy != sy)
4024         {
4025           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
4026           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
4027           last_sx = sx;
4028           last_sy = sy;
4029         }
4030       }
4031       break;
4032
4033     case GADGET_ID_FLOOD_FILL:
4034       if (button_press_event && Feld[lx][ly] != new_element)
4035       {
4036         FloodFill(lx, ly, new_element);
4037         DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4038         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
4039       }
4040       break;
4041
4042     case GADGET_ID_PICK_ELEMENT:
4043       if (button_release_event)
4044         ClickOnGadget(level_editor_gadget[last_drawing_function],
4045                       MB_LEFTBUTTON);
4046       else
4047         PickDrawingElement(button, Feld[lx][ly]);
4048
4049       break;
4050
4051     default:
4052       break;
4053   }
4054 }
4055
4056 static void HandleCounterButtons(struct GadgetInfo *gi)
4057 {
4058   int gadget_id = gi->custom_id;
4059   int counter_id = gi->custom_type_id;
4060   int button = gi->event.button;
4061   int *counter_value = counterbutton_info[counter_id].value;
4062   int step = BUTTON_STEPSIZE(button) *
4063     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
4064
4065   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
4066   {
4067     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
4068     boolean released = (gi->event.type == GD_EVENT_RELEASED);
4069     boolean level_changed = LevelChanged();
4070
4071     if ((level_changed && pressed) || (!level_changed && released))
4072       return;
4073
4074     if (level_changed && !Request("Level has changed! Discard changes ?",
4075                                   REQ_ASK))
4076     {
4077       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
4078         ModifyEditorCounter(counter_id, *counter_value);
4079       return;
4080     }
4081   }
4082
4083   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
4084     *counter_value = gi->text.number_value;
4085   else
4086     ModifyEditorCounter(counter_id, *counter_value + step);
4087
4088   switch (counter_id)
4089   {
4090     case ED_COUNTER_ID_ELEM_CONTENT:
4091       DrawElementContentAreas();
4092       break;
4093
4094     case ED_COUNTER_ID_LEVEL_XSIZE:
4095     case ED_COUNTER_ID_LEVEL_YSIZE:
4096       lev_fieldx = level.fieldx;
4097       lev_fieldy = level.fieldy;
4098       break;
4099
4100     case ED_COUNTER_ID_SELECT_LEVEL:
4101       LoadLevel(level_nr);
4102       TapeErase();
4103       ResetUndoBuffer();
4104       DrawEditModeWindow();
4105       break;
4106
4107     default:
4108       break;
4109   }
4110 }
4111
4112 static void HandleTextInputGadgets(struct GadgetInfo *gi)
4113 {
4114   strcpy(textinput_info[gi->custom_type_id].value, gi->text.value);
4115 }
4116
4117 static void HandleRadiobuttons(struct GadgetInfo *gi)
4118 {
4119   *radiobutton_info[gi->custom_type_id].value =
4120     radiobutton_info[gi->custom_type_id].checked_value;
4121 }
4122
4123 static void HandleCheckbuttons(struct GadgetInfo *gi)
4124 {
4125   int type_id = gi->custom_type_id;
4126
4127   *checkbutton_info[type_id].value ^= TRUE;
4128
4129   if (type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
4130       type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST)
4131     CopyCustomElementPropertiesToGame();
4132 }
4133
4134 static void HandleControlButtons(struct GadgetInfo *gi)
4135 {
4136   int id = gi->custom_id;
4137   int button = gi->event.button;
4138   int step = BUTTON_STEPSIZE(button);
4139   int new_element = BUTTON_ELEMENT(button);
4140   int i, x, y;
4141
4142   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
4143     DrawLevelText(0, 0, 0, TEXT_END);
4144
4145   if (id < ED_NUM_CTRL1_BUTTONS && id != GADGET_ID_PROPERTIES &&
4146       edit_mode != ED_MODE_DRAWING)
4147   {
4148     DrawDrawingWindow();
4149     edit_mode = ED_MODE_DRAWING;
4150   }
4151
4152   switch (id)
4153   {
4154     case GADGET_ID_SCROLL_LEFT:
4155       if (level_xpos >= 0)
4156       {
4157         if (lev_fieldx < ed_fieldx - 2)
4158           break;
4159
4160         level_xpos -= step;
4161         if (level_xpos < -1)
4162           level_xpos = -1;
4163         if (button == 1)
4164           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
4165         else
4166           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4167
4168         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
4169                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
4170       }
4171       break;
4172
4173     case GADGET_ID_SCROLL_RIGHT:
4174       if (level_xpos <= lev_fieldx - ed_fieldx)
4175       {
4176         if (lev_fieldx < ed_fieldx - 2)
4177           break;
4178
4179         level_xpos += step;
4180         if (level_xpos > lev_fieldx - ed_fieldx + 1)
4181           level_xpos = lev_fieldx - ed_fieldx + 1;
4182         if (button == 1)
4183           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
4184         else
4185           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4186
4187         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
4188                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
4189       }
4190       break;
4191
4192     case GADGET_ID_SCROLL_UP:
4193       if (level_ypos >= 0)
4194       {
4195         if (lev_fieldy < ed_fieldy - 2)
4196           break;
4197
4198         level_ypos -= step;
4199         if (level_ypos < -1)
4200           level_ypos = -1;
4201         if (button == 1)
4202           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
4203         else
4204           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4205
4206         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
4207                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
4208       }
4209       break;
4210
4211     case GADGET_ID_SCROLL_DOWN:
4212       if (level_ypos <= lev_fieldy - ed_fieldy)
4213       {
4214         if (lev_fieldy < ed_fieldy - 2)
4215           break;
4216
4217         level_ypos += step;
4218         if (level_ypos > lev_fieldy - ed_fieldy + 1)
4219           level_ypos = lev_fieldy - ed_fieldy + 1;
4220         if (button == 1)
4221           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_UP);
4222         else
4223           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4224
4225         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
4226                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
4227       }
4228       break;
4229
4230     case GADGET_ID_SCROLL_HORIZONTAL:
4231       level_xpos = gi->event.item_position - 1;
4232       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4233       break;
4234
4235     case GADGET_ID_SCROLL_VERTICAL:
4236       level_ypos = gi->event.item_position - 1;
4237       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4238       break;
4239
4240     case GADGET_ID_SCROLL_LIST_UP:
4241     case GADGET_ID_SCROLL_LIST_DOWN:
4242     case GADGET_ID_SCROLL_LIST_VERTICAL:
4243       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
4244         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
4245       else
4246       {
4247         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
4248         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
4249
4250         if (element_shift < 0)
4251           element_shift = 0;
4252         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
4253           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
4254
4255         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
4256                      GDI_SCROLLBAR_ITEM_POSITION,
4257                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
4258       }
4259
4260       for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
4261       {
4262         int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
4263         struct GadgetInfo *gi = level_editor_gadget[gadget_id];
4264         struct GadgetDesign *gd = &gi->deco.design;
4265         int element = editor_elements[element_shift + i];
4266
4267         UnmapGadget(gi);
4268         getMiniGraphicSource(el2edimg(element), &gd->bitmap, &gd->x, &gd->y);
4269         ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
4270         MapGadget(gi);
4271       }
4272       break;
4273
4274     case GADGET_ID_WRAP_LEFT:
4275       WrapLevel(-step, 0);
4276       break;
4277
4278     case GADGET_ID_WRAP_RIGHT:
4279       WrapLevel(step, 0);
4280       break;
4281
4282     case GADGET_ID_WRAP_UP:
4283       WrapLevel(0, -step);
4284       break;
4285
4286     case GADGET_ID_WRAP_DOWN:
4287       WrapLevel(0, step);
4288       break;
4289
4290     case GADGET_ID_SINGLE_ITEMS:
4291     case GADGET_ID_CONNECTED_ITEMS:
4292     case GADGET_ID_LINE:
4293     case GADGET_ID_ARC:
4294     case GADGET_ID_TEXT:
4295     case GADGET_ID_RECTANGLE:
4296     case GADGET_ID_FILLED_BOX:
4297     case GADGET_ID_FLOOD_FILL:
4298     case GADGET_ID_GRAB_BRUSH:
4299     case GADGET_ID_PICK_ELEMENT:
4300       last_drawing_function = drawing_function;
4301       drawing_function = id;
4302       draw_with_brush = FALSE;
4303       break;
4304
4305     case GADGET_ID_RANDOM_PLACEMENT:
4306       RandomPlacement(new_element);
4307       break;
4308
4309     case GADGET_ID_PROPERTIES:
4310       if (edit_mode != ED_MODE_PROPERTIES)
4311       {
4312         properties_element = new_element;
4313         DrawPropertiesWindow();
4314         edit_mode = ED_MODE_PROPERTIES;
4315       }
4316       else
4317       {
4318         DrawDrawingWindow();
4319         edit_mode = ED_MODE_DRAWING;
4320       }
4321       break;
4322
4323     case GADGET_ID_UNDO:
4324       if (undo_buffer_steps == 0)
4325       {
4326         Request("Undo buffer empty !", REQ_CONFIRM);
4327         break;
4328       }
4329
4330       undo_buffer_position =
4331         (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
4332       undo_buffer_steps--;
4333
4334       for(x=0; x<lev_fieldx; x++)
4335         for(y=0; y<lev_fieldy; y++)
4336           Feld[x][y] = UndoBuffer[undo_buffer_position][x][y];
4337       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos,level_ypos);
4338       break;
4339
4340     case GADGET_ID_INFO:
4341       if (edit_mode != ED_MODE_INFO)
4342       {
4343         DrawLevelInfoWindow();
4344         edit_mode = ED_MODE_INFO;
4345       }
4346       else
4347       {
4348         DrawDrawingWindow();
4349         edit_mode = ED_MODE_DRAWING;
4350       }
4351       break;
4352
4353     case GADGET_ID_CLEAR:
4354       for(x=0; x<MAX_LEV_FIELDX; x++)
4355         for(y=0; y<MAX_LEV_FIELDY; y++)
4356           Feld[x][y] = (button == 1 ? EL_EMPTY : new_element);
4357       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
4358
4359       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4360       break;
4361
4362     case GADGET_ID_SAVE:
4363       if (leveldir_current->readonly)
4364       {
4365         Request("This level is read only !", REQ_CONFIRM);
4366         break;
4367       }
4368
4369       if (!LevelContainsPlayer)
4370         Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
4371       else
4372       {
4373         if (Request("Save this level and kill the old ?", REQ_ASK))
4374         {
4375           CopyPlayfield(Feld, Ur);
4376
4377           SaveLevel(level_nr);
4378         }
4379       }
4380       break;
4381
4382     case GADGET_ID_TEST:
4383       if (!LevelContainsPlayer)
4384         Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
4385       else
4386       {
4387         if (LevelChanged())
4388           level.game_version = GAME_VERSION_ACTUAL;
4389
4390         CopyPlayfield(Ur, FieldBackup);
4391         CopyPlayfield(Feld, Ur);
4392
4393         UnmapLevelEditorGadgets();
4394         UndrawSpecialEditorDoor();
4395
4396         CloseDoor(DOOR_CLOSE_ALL);
4397
4398         DrawCompleteVideoDisplay();
4399
4400         if (setup.autorecord)
4401           TapeStartRecording();
4402
4403         level_editor_test_game = TRUE;
4404         game_status = PLAYING;
4405
4406         InitGame();
4407       }
4408       break;
4409
4410     case GADGET_ID_EXIT:
4411       RequestExitLevelEditor(TRUE);     /* if level has changed, ask user */
4412       break;
4413
4414     default:
4415       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
4416           id <= GADGET_ID_ELEMENTLIST_LAST)
4417       {
4418         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
4419         int new_element = editor_elements[element_position + element_shift];
4420
4421         PickDrawingElement(button, new_element);
4422
4423         if (!HAS_CONTENT(properties_element) ||
4424             !stick_element_properties_window)
4425         {
4426           properties_element = new_element;
4427           if (edit_mode == ED_MODE_PROPERTIES)
4428             DrawPropertiesWindow();
4429         }
4430
4431         if (drawing_function == GADGET_ID_PICK_ELEMENT)
4432           ClickOnGadget(level_editor_gadget[last_drawing_function],
4433                         MB_LEFTBUTTON);
4434       }
4435 #ifdef DEBUG
4436       else if (gi->event.type == GD_EVENT_PRESSED)
4437         printf("default: HandleControlButtons: GD_EVENT_PRESSED(%d)\n", id);
4438       else if (gi->event.type == GD_EVENT_RELEASED)
4439         printf("default: HandleControlButtons: GD_EVENT_RELEASED(%d)\n", id);
4440       else if (gi->event.type == GD_EVENT_MOVING)
4441         printf("default: HandleControlButtons: GD_EVENT_MOVING(%d)\n", id);
4442       else
4443         printf("default: HandleControlButtons: ? (id == %d)\n", id);
4444 #endif
4445       break;
4446   }
4447 }
4448
4449 void HandleLevelEditorKeyInput(Key key)
4450 {
4451   char letter = getCharFromKey(key);
4452   int button = MB_LEFTBUTTON;
4453
4454   if (drawing_function == GADGET_ID_TEXT &&
4455       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
4456   {
4457     if (letter)
4458       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
4459     else if (key == KSYM_Delete || key == KSYM_BackSpace)
4460       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
4461     else if (key == KSYM_Return)
4462       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
4463     else if (key == KSYM_Escape)
4464       DrawLevelText(0, 0, 0, TEXT_END);
4465   }
4466   else if (button_status == MB_RELEASED)
4467   {
4468     int i, id = GADGET_ID_NONE;
4469
4470     switch (key)
4471     {
4472       case KSYM_Left:
4473         id = GADGET_ID_SCROLL_LEFT;
4474         break;
4475       case KSYM_Right:
4476         id = GADGET_ID_SCROLL_RIGHT;
4477         break;
4478       case KSYM_Up:
4479         id = GADGET_ID_SCROLL_UP;
4480         break;
4481       case KSYM_Down:
4482         id = GADGET_ID_SCROLL_DOWN;
4483         break;
4484       case KSYM_Page_Up:
4485         id = GADGET_ID_SCROLL_LIST_UP;
4486         button = MB_RIGHTBUTTON;
4487         break;
4488       case KSYM_Page_Down:
4489         id = GADGET_ID_SCROLL_LIST_DOWN;
4490         button = MB_RIGHTBUTTON;
4491         break;
4492
4493       case KSYM_Escape:
4494         if (edit_mode == ED_MODE_DRAWING)
4495         {
4496           RequestExitLevelEditor(setup.ask_on_escape);
4497         }
4498         else
4499         {
4500           DrawDrawingWindow();
4501           edit_mode = ED_MODE_DRAWING;
4502         }
4503         break;
4504
4505       default:
4506         break;
4507     }
4508
4509     if (id != GADGET_ID_NONE)
4510       ClickOnGadget(level_editor_gadget[id], button);
4511     else if (letter == '.')
4512       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
4513     else if (key == KSYM_Return || key == setup.shortcut.toggle_pause)
4514       ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
4515     else
4516       for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
4517         if (letter && letter == control_info[i].shortcut)
4518           if (!anyTextGadgetActive())
4519             ClickOnGadget(level_editor_gadget[i], button);
4520   }
4521 }
4522
4523 void HandleLevelEditorIdle()
4524 {
4525   static unsigned long action_delay = 0;
4526   unsigned long action_delay_value = GameFrameDelay;
4527   int xpos = 1, ypos = 2;
4528
4529   if (edit_mode != ED_MODE_PROPERTIES)
4530     return;
4531
4532   if (!DelayReached(&action_delay, action_delay_value))
4533     return;
4534
4535   DrawGraphicAnimationExt(drawto,
4536                           SX + xpos * TILEX,
4537                           SY + ypos * TILEY + MINI_TILEY / 2,
4538                           el2edimg(properties_element), -1, NO_MASKING);
4539
4540   MarkTileDirty(xpos, ypos);
4541   MarkTileDirty(xpos, ypos + 1);
4542
4543   FrameCounter++;       /* increase animation frame counter */
4544 }
4545
4546 void ClearEditorGadgetInfoText()
4547 {
4548   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
4549 }
4550
4551 void HandleEditorGadgetInfoText(void *ptr)
4552 {
4553   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
4554   char infotext[MAX_OUTPUT_LINESIZE + 1];
4555   char shortcut[MAX_OUTPUT_LINESIZE + 1];
4556   int max_infotext_len = getMaxInfoTextLength();
4557
4558   if (game_status != LEVELED)
4559     return;
4560
4561   ClearEditorGadgetInfoText();
4562
4563   if (gi->event.type == GD_EVENT_INFO_LEAVING)
4564     return;
4565
4566   /* misuse this function to delete brush cursor, if needed */
4567   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
4568     DeleteBrushFromCursor();
4569
4570   if (gi == NULL || gi->info_text == NULL)
4571     return;
4572
4573   strncpy(infotext, gi->info_text, max_infotext_len);
4574   infotext[max_infotext_len] = '\0';
4575
4576   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
4577   {
4578     int key = control_info[gi->custom_id].shortcut;
4579
4580     if (key)
4581     {
4582       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)      /* special case 1 */
4583         sprintf(shortcut, " ('.' or '%c')", key);
4584       else if (gi->custom_id == GADGET_ID_TEST)         /* special case 2 */
4585         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
4586       else                                              /* normal case */
4587         sprintf(shortcut, " ('%s%c')",
4588                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
4589
4590       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
4591         strcat(infotext, shortcut);
4592     }
4593   }
4594
4595   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, FONT_TEXT_2);
4596 }
4597
4598 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
4599 {
4600   static int start_lx, start_ly;
4601   char *infotext;
4602   int id = gi->custom_id;
4603   int sx = gi->event.x;
4604   int sy = gi->event.y;
4605   int lx = sx + level_xpos;
4606   int ly = sy + level_ypos;
4607   int min_sx = 0, min_sy = 0;
4608   int max_sx = gi->drawing.area_xsize - 1;
4609   int max_sy = gi->drawing.area_ysize - 1;
4610
4611   ClearEditorGadgetInfoText();
4612
4613   if (gi->event.type == GD_EVENT_INFO_LEAVING)
4614     return;
4615
4616   /* make sure to stay inside drawing area boundaries */
4617   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
4618   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
4619
4620   if (id == GADGET_ID_DRAWING_LEVEL)
4621   {
4622     if (button_status)
4623     {
4624       int min_lx = 0, min_ly = 0;
4625       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
4626
4627       /* get positions inside level field */
4628       lx = sx + level_xpos;
4629       ly = sy + level_ypos;
4630
4631       /* make sure to stay inside level field boundaries */
4632       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
4633       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
4634
4635       /* correct drawing area positions accordingly */
4636       sx = lx - level_xpos;
4637       sy = ly - level_ypos;
4638     }
4639
4640     if (IN_ED_FIELD(sx,sy) && IN_LEV_FIELD(lx, ly))
4641     {
4642       if (button_status)        /* if (gi->state == GD_BUTTON_PRESSED) */
4643       {
4644         if (gi->event.type == GD_EVENT_PRESSED)
4645         {
4646           start_lx = lx;
4647           start_ly = ly;
4648         }
4649
4650         switch (drawing_function)
4651         {
4652           case GADGET_ID_SINGLE_ITEMS:
4653             infotext = "Drawing single items";
4654             break;
4655           case GADGET_ID_CONNECTED_ITEMS:
4656             infotext = "Drawing connected items";
4657             break;
4658           case GADGET_ID_LINE:
4659             infotext = "Drawing line";
4660             break;
4661           case GADGET_ID_ARC:
4662             infotext = "Drawing arc";
4663             break;
4664           case GADGET_ID_TEXT:
4665             infotext = "Setting text cursor";
4666             break;
4667           case GADGET_ID_RECTANGLE:
4668             infotext = "Drawing rectangle";
4669             break;
4670           case GADGET_ID_FILLED_BOX:
4671             infotext = "Drawing filled box";
4672             break;
4673           case GADGET_ID_FLOOD_FILL:
4674             infotext = "Flood fill";
4675             break;
4676           case GADGET_ID_GRAB_BRUSH:
4677             infotext = "Grabbing brush";
4678             break;
4679           case GADGET_ID_PICK_ELEMENT:
4680             infotext = "Picking element";
4681             break;
4682
4683           default:
4684             infotext = "Drawing position";
4685             break;
4686         }
4687
4688         if (drawing_function == GADGET_ID_PICK_ELEMENT)
4689           DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
4690                     "%s: %d, %d", infotext, lx, ly);
4691         else
4692           DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
4693                     "%s: %d, %d", infotext,
4694                     ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
4695       }
4696       else if (drawing_function == GADGET_ID_PICK_ELEMENT)
4697         DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
4698                   "%s", getElementInfoText(Feld[lx][ly]));
4699       else
4700         DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
4701                   "Level position: %d, %d", lx, ly);
4702     }
4703
4704     /* misuse this function to draw brush cursor, if needed */
4705     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
4706     {
4707       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
4708         CopyBrushToCursor(sx, sy);
4709       else
4710         DeleteBrushFromCursor();
4711     }
4712   }
4713   else if (id == GADGET_ID_AMOEBA_CONTENT)
4714     DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
4715               "Amoeba content");
4716   else if (id == GADGET_ID_RANDOM_BACKGROUND)
4717     DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
4718               "Random placement background");
4719   else
4720     DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
4721               "Content area %d position: %d, %d",
4722               id - GADGET_ID_ELEM_CONTENT_0 + 1, sx, sy);
4723 }
4724
4725 void RequestExitLevelEditor(boolean ask_if_level_has_changed)
4726 {
4727   if (!ask_if_level_has_changed ||
4728       !LevelChanged() ||
4729       Request("Level has changed! Exit without saving ?",
4730               REQ_ASK | REQ_STAY_OPEN))
4731   {
4732     CloseDoor(DOOR_CLOSE_1);
4733     /*
4734     CloseDoor(DOOR_CLOSE_ALL);
4735     */
4736     game_status = MAINMENU;
4737     DrawMainMenu();
4738   }
4739   else
4740   {
4741     CloseDoor(DOOR_CLOSE_1);
4742     BlitBitmap(bitmap_db_door, bitmap_db_door,
4743                DOOR_GFX_PAGEX2, DOOR_GFX_PAGEY1, DXSIZE,DYSIZE,
4744                DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
4745     OpenDoor(DOOR_OPEN_1);
4746   }
4747 }