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_SLIPPERY       81
 297
 298 /* gadgets for buttons in element list */
 299 #define GADGET_ID_ELEMENTLIST_FIRST     82
 300 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 301                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 302
 303 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 304
 305 /* radio button numbers */
 306 #define RADIO_NR_NONE                   0
 307 #define RADIO_NR_DRAWING_TOOLBOX        1
 308 #define RADIO_NR_RANDOM_ELEMENTS        2
 309
 310 /* values for counter gadgets */
 311 #define ED_COUNTER_ID_ELEM_SCORE        0
 312 #define ED_COUNTER_ID_ELEM_CONTENT      1
 313 #define ED_COUNTER_ID_LEVEL_XSIZE       2
 314 #define ED_COUNTER_ID_LEVEL_YSIZE       3
 315 #define ED_COUNTER_ID_LEVEL_COLLECT     4
 316 #define ED_COUNTER_ID_LEVEL_TIMELIMIT   5
 317 #define ED_COUNTER_ID_LEVEL_TIMESCORE   6
 318 #define ED_COUNTER_ID_LEVEL_RANDOM      7
 319 #define ED_COUNTER_ID_SELECT_LEVEL      8
 320
 321 #define ED_NUM_COUNTERBUTTONS           9
 322
 323 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 324 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM
 325
 326 /* values for scrollbutton gadgets */
 327 #define ED_SCROLLBUTTON_ID_AREA_UP      0
 328 #define ED_SCROLLBUTTON_ID_AREA_DOWN    1
 329 #define ED_SCROLLBUTTON_ID_AREA_LEFT    2
 330 #define ED_SCROLLBUTTON_ID_AREA_RIGHT   3
 331 #define ED_SCROLLBUTTON_ID_LIST_UP      4
 332 #define ED_SCROLLBUTTON_ID_LIST_DOWN    5
 333
 334 #define ED_NUM_SCROLLBUTTONS            6
 335
 336 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 337 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 338
 339 /* values for scrollbar gadgets */
 340 #define ED_SCROLLBAR_ID_AREA_HORIZONTAL 0
 341 #define ED_SCROLLBAR_ID_AREA_VERTICAL   1
 342 #define ED_SCROLLBAR_ID_LIST_VERTICAL   2
 343
 344 #define ED_NUM_SCROLLBARS               3
 345
 346 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 347 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 348
 349 /* values for text input gadgets */
 350 #define ED_TEXTINPUT_ID_LEVEL_NAME      0
 351 #define ED_TEXTINPUT_ID_LEVEL_AUTHOR    1
 352
 353 #define ED_NUM_TEXTINPUT                2
 354
 355 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 356 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 357
 358 /* values for checkbutton gadgets */
 359 #define ED_CHECKBUTTON_ID_DOUBLE_SPEED          0
 360 #define ED_CHECKBUTTON_ID_GRAVITY               1
 361 #define ED_CHECKBUTTON_ID_RANDOM_RESTRICTED     2
 362 #define ED_CHECKBUTTON_ID_STICK_ELEMENT         3
 363 #define ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS      4
 364 #define ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE 5
 365 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL       6
 366 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH      7
 367 #define ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY       8
 368
 369 #define ED_NUM_CHECKBUTTONS                     9
 370
 371 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_DOUBLE_SPEED
 372 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
 373
 374 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
 375 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY
 376
 377 /* values for radiobutton gadgets */
 378 #define ED_RADIOBUTTON_ID_PERCENTAGE    0
 379 #define ED_RADIOBUTTON_ID_QUANTITY      1
 380
 381 #define ED_NUM_RADIOBUTTONS             2
 382
 383 #define ED_RADIOBUTTON_ID_LEVEL_FIRST   ED_RADIOBUTTON_ID_PERCENTAGE
 384 #define ED_RADIOBUTTON_ID_LEVEL_LAST    ED_RADIOBUTTON_ID_QUANTITY
 385
 386 /* values for CopyLevelToUndoBuffer() */
 387 #define UNDO_IMMEDIATE                  0
 388 #define UNDO_ACCUMULATE                 1
 389
 390 /* values for ClearEditorGadgetInfoText() and HandleGadgetInfoText() */
 391 #define INFOTEXT_XPOS                   SX
 392 #define INFOTEXT_YPOS                   (SY + SYSIZE - MINI_TILEX + 2)
 393 #define INFOTEXT_XSIZE                  SXSIZE
 394 #define INFOTEXT_YSIZE                  MINI_TILEX
 395 #define MAX_INFOTEXT_LEN                (SXSIZE / FONT2_XSIZE)
 396
 397 static struct
 398 {
 399   char shortcut;
 400   char *text;
 401 } control_info[ED_NUM_CTRL_BUTTONS] =
 402 {
 403   { 's', "draw single items" },
 404   { 'd', "draw connected items" },
 405   { 'l', "draw lines" },
 406   { 'a', "draw arcs" },
 407   { 'r', "draw outline rectangles" },
 408   { 'R', "draw filled rectangles" },
 409   { '\0', "wrap (rotate) level up" },
 410   { 't', "enter text elements" },
 411   { 'f', "flood fill" },
 412   { '\0', "wrap (rotate) level left" },
 413   { '?', "properties of drawing element" },
 414   { '\0', "wrap (rotate) level right" },
 415   { '\0', "random element placement" },
 416   { 'b', "grab brush" },
 417   { '\0', "wrap (rotate) level down" },
 418   { ',', "pick drawing element" },
 419   { 'U', "undo last operation" },
 420   { 'I', "level properties" },
 421   { 'S', "save level" },
 422   { 'C', "clear level" },
 423   { 'T', "test level" },
 424   { 'E', "exit level editor" }
 425 };
 426
 427 /* values for random placement */
 428 #define RANDOM_USE_PERCENTAGE           0
 429 #define RANDOM_USE_QUANTITY             1
 430
 431 static int random_placement_value = 10;
 432 static int random_placement_method = RANDOM_USE_QUANTITY;
 433 static int random_placement_background_element = EL_SAND;
 434 static boolean random_placement_background_restricted = FALSE;
 435 static boolean stick_element_properties_window = FALSE;
 436
 437 static struct
 438 {
 439   boolean indestructible;
 440   boolean can_fall;
 441   boolean can_smash;
 442   boolean slippery;
 443 } custom_element_properties[NUM_CUSTOM_ELEMENTS];
 444
 445 static struct
 446 {
 447   int x, y;
 448   int min_value, max_value;
 449   int gadget_id_down, gadget_id_up;
 450   int gadget_id_text;
 451   int *value;
 452   char *infotext_above, *infotext_right;
 453 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
 454 {
 455   {
 456     ED_COUNT_ELEM_SCORE_XPOS,           ED_COUNT_ELEM_SCORE_YPOS,
 457     MIN_SCORE,                          MAX_SCORE,
 458     GADGET_ID_ELEM_SCORE_DOWN,          GADGET_ID_ELEM_SCORE_UP,
 459     GADGET_ID_ELEM_SCORE_TEXT,
 460     NULL,                               /* will be set when used */
 461     "element score",                    NULL
 462   },
 463   {
 464     ED_COUNT_ELEM_CONTENT_XPOS,         ED_COUNT_ELEM_CONTENT_YPOS,
 465     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
 466     GADGET_ID_ELEM_CONTENT_DOWN,        GADGET_ID_ELEM_CONTENT_UP,
 467     GADGET_ID_ELEM_CONTENT_TEXT,
 468     &level.num_yam_contents,
 469     "element content",                  NULL
 470   },
 471   {
 472     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(2),
 473     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
 474     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
 475     GADGET_ID_LEVEL_XSIZE_TEXT,
 476     &level.fieldx,
 477     "playfield size",                   "width",
 478   },
 479   {
 480     ED_SETTINGS_XPOS + 2 * DXSIZE,      ED_COUNTER_YPOS(2),
 481     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
 482     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
 483     GADGET_ID_LEVEL_YSIZE_TEXT,
 484     &level.fieldy,
 485     NULL,                               "height",
 486   },
 487   {
 488     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(3),
 489     0,                                  999,
 490     GADGET_ID_LEVEL_COLLECT_DOWN,       GADGET_ID_LEVEL_COLLECT_UP,
 491     GADGET_ID_LEVEL_COLLECT_TEXT,
 492     &level.gems_needed,
 493     "number of emeralds to collect",    NULL
 494   },
 495   {
 496     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 497     0,                                  999,
 498     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
 499     GADGET_ID_LEVEL_TIMELIMIT_TEXT,
 500     &level.time,
 501     "time available to solve level",    "(0 => no time limit)"
 502   },
 503   {
 504     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(5),
 505     0,                                  255,
 506     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
 507     GADGET_ID_LEVEL_TIMESCORE_TEXT,
 508     &level.score[SC_ZEITBONUS],
 509     "score for each 10 seconds left",   NULL
 510   },
 511   {
 512     ED_SETTINGS_XPOS,                   ED_COUNTER2_YPOS(8),
 513     1,                                  100,
 514     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
 515     GADGET_ID_LEVEL_RANDOM_TEXT,
 516     &random_placement_value,
 517     "random element placement",         "in"
 518   },
 519   {
 520     DX + 5 - SX,                        DY + 3 - SY,
 521     1,                                  100,
 522     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
 523     GADGET_ID_SELECT_LEVEL_TEXT,
 524     &level_nr,
 525     NULL,                               NULL
 526   }
 527 };
 528
 529 static struct
 530 {
 531   int x, y;
 532   int gadget_id;
 533   int size;
 534   char *value;
 535   char *infotext;
 536 } textinput_info[ED_NUM_TEXTINPUT] =
 537 {
 538   {
 539     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(0),
 540     GADGET_ID_LEVEL_NAME,
 541     MAX_LEVEL_NAME_LEN,
 542     level.name,
 543     "Title"
 544   },
 545   {
 546     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(1),
 547     GADGET_ID_LEVEL_AUTHOR,
 548     MAX_LEVEL_AUTHOR_LEN,
 549     level.author,
 550     "Author"
 551   }
 552 };
 553
 554 static struct
 555 {
 556   int xpos, ypos;
 557   int x, y;
 558   int gadget_id;
 559   char *infotext;
 560 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
 561 {
 562   {
 563     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 0 * ED_SCROLLBUTTON_YSIZE,
 564     ED_SCROLL_UP_XPOS,      ED_SCROLL_UP_YPOS,
 565     GADGET_ID_SCROLL_UP,
 566     "scroll level editing area up"
 567   },
 568   {
 569     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 1 * ED_SCROLLBUTTON_YSIZE,
 570     ED_SCROLL_DOWN_XPOS,    ED_SCROLL_DOWN_YPOS,
 571     GADGET_ID_SCROLL_DOWN,
 572     "scroll level editing area down"
 573   },
 574   {
 575     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 2 * ED_SCROLLBUTTON_YSIZE,
 576     ED_SCROLL_LEFT_XPOS,    ED_SCROLL_LEFT_YPOS,
 577     GADGET_ID_SCROLL_LEFT,
 578     "scroll level editing area left"
 579   },
 580   {
 581     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 3 * ED_SCROLLBUTTON_YSIZE,
 582     ED_SCROLL_RIGHT_XPOS,   ED_SCROLL_RIGHT_YPOS,
 583     GADGET_ID_SCROLL_RIGHT,
 584     "scroll level editing area right"
 585   },
 586   {
 587     ED_SCROLLBUTTON2_XPOS,  ED_SCROLLBUTTON2_YPOS + 0 * ED_SCROLLBUTTON2_YSIZE,
 588     ED_SCROLL2_UP_XPOS,     ED_SCROLL2_UP_YPOS,
 589     GADGET_ID_SCROLL_LIST_UP,
 590     "scroll element list up ('Page Up')"
 591   },
 592   {
 593     ED_SCROLLBUTTON2_XPOS,  ED_SCROLLBUTTON2_YPOS + 1 * ED_SCROLLBUTTON2_YSIZE,
 594     ED_SCROLL2_DOWN_XPOS,    ED_SCROLL2_DOWN_YPOS,
 595     GADGET_ID_SCROLL_LIST_DOWN,
 596     "scroll element list down ('Page Down')"
 597   }
 598 };
 599
 600 static struct
 601 {
 602   int xpos, ypos;
 603   int x, y;
 604   int width, height;
 605   int type;
 606   int gadget_id;
 607   char *infotext;
 608 } scrollbar_info[ED_NUM_SCROLLBARS] =
 609 {
 610   {
 611     ED_SCROLLBAR_XPOS,                  ED_SCROLLBAR_YPOS,
 612     SX + ED_SCROLL_HORIZONTAL_XPOS,     SY + ED_SCROLL_HORIZONTAL_YPOS,
 613     ED_SCROLL_HORIZONTAL_XSIZE,         ED_SCROLL_HORIZONTAL_YSIZE,
 614     GD_TYPE_SCROLLBAR_HORIZONTAL,
 615     GADGET_ID_SCROLL_HORIZONTAL,
 616     "scroll level editing area horizontally"
 617   },
 618   {
 619     ED_SCROLLBAR_XPOS,                  ED_SCROLLBAR_YPOS,
 620     SX + ED_SCROLL_VERTICAL_XPOS,       SY + ED_SCROLL_VERTICAL_YPOS,
 621     ED_SCROLL_VERTICAL_XSIZE,           ED_SCROLL_VERTICAL_YSIZE,
 622     GD_TYPE_SCROLLBAR_VERTICAL,
 623     GADGET_ID_SCROLL_VERTICAL,
 624     "scroll level editing area vertically"
 625   },
 626   {
 627     ED_SCROLLBAR2_XPOS,                 ED_SCROLLBAR2_YPOS,
 628     DX + ED_SCROLL2_VERTICAL_XPOS,      DY + ED_SCROLL2_VERTICAL_YPOS,
 629     ED_SCROLL2_VERTICAL_XSIZE,          ED_SCROLL2_VERTICAL_YSIZE,
 630     GD_TYPE_SCROLLBAR_VERTICAL,
 631     GADGET_ID_SCROLL_LIST_VERTICAL,
 632     "scroll element list vertically"
 633   }
 634 };
 635
 636 static struct
 637 {
 638   int x, y;
 639   int gadget_id;
 640   int radio_button_nr;
 641   int *value;
 642   int checked_value;
 643   char *text, *infotext;
 644 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
 645 {
 646   {
 647     ED_SETTINGS_XPOS + 160,             ED_COUNTER2_YPOS(8),
 648     GADGET_ID_RANDOM_PERCENTAGE,
 649     RADIO_NR_RANDOM_ELEMENTS,
 650     &random_placement_method,           RANDOM_USE_PERCENTAGE,
 651     "percentage",                       "use percentage for random elements"
 652   },
 653   {
 654     ED_SETTINGS_XPOS + 340,             ED_COUNTER2_YPOS(8),
 655     GADGET_ID_RANDOM_QUANTITY,
 656     RADIO_NR_RANDOM_ELEMENTS,
 657     &random_placement_method,           RANDOM_USE_QUANTITY,
 658     "quantity",                         "use quantity for random elements"
 659   }
 660 };
 661
 662 static struct
 663 {
 664   int x, y;
 665   int gadget_id;
 666   boolean *value;
 667   char *text, *infotext;
 668 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
 669 {
 670   {
 671     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(6) - MINI_TILEY,
 672     GADGET_ID_DOUBLE_SPEED,
 673     &level.double_speed,
 674     "double speed movement",            "set movement speed of player"
 675   },
 676   {
 677     ED_SETTINGS_XPOS + 340,             ED_COUNTER_YPOS(6) - MINI_TILEY,
 678     GADGET_ID_GRAVITY,
 679     &level.gravity,
 680     "gravity",                          "set level gravity"
 681   },
 682   {
 683     ED_SETTINGS_XPOS,                   ED_COUNTER2_YPOS(9) - MINI_TILEY,
 684     GADGET_ID_RANDOM_RESTRICTED,
 685     &random_placement_background_restricted,
 686     "restrict random placement to",     "set random placement restriction"
 687   },
 688   {
 689     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 690     GADGET_ID_STICK_ELEMENT,
 691     &stick_element_properties_window,
 692     "stick window to edit content",     "stick window to edit content"
 693   },
 694   {
 695     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 696     GADGET_ID_EM_SLIPPERY_GEMS,
 697     &level.em_slippery_gems,
 698     "slip down from certain flat walls","use EM style slipping behaviour"
 699   },
 700   {
 701     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 702     GADGET_ID_CUSTOM_INDESTRUCTIBLE,
 703     &custom_element_properties[0].indestructible,
 704     "indestructible",                   "element cannot be destroyed"
 705   },
 706   {
 707     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(5),
 708     GADGET_ID_CUSTOM_CAN_FALL,
 709     &custom_element_properties[0].can_fall,
 710     "can fall",                         "element can fall down"
 711   },
 712   {
 713     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(6),
 714     GADGET_ID_CUSTOM_CAN_SMASH,
 715     &custom_element_properties[0].can_smash,
 716     "can smash",                        "element can smash other elements"
 717   },
 718   {
 719     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(7),
 720     GADGET_ID_CUSTOM_SLIPPERY,
 721     &custom_element_properties[0].slippery,
 722     "slippery",                         "other elements can fall down from it"
 723   }
 724 };
 725
 726 /* maximal size of level editor drawing area */
 727 #define MAX_ED_FIELDX           (2 * SCR_FIELDX)
 728 #define MAX_ED_FIELDY           (2 * SCR_FIELDY - 1)
 729
 730 /* actual size of level editor drawing area */
 731 static int ed_fieldx = MAX_ED_FIELDX - 1, ed_fieldy = MAX_ED_FIELDY - 1;
 732
 733 /* actual position of level editor drawing area in level playfield */
 734 static int level_xpos = -1, level_ypos = -1;
 735
 736 #define IN_ED_FIELD(x,y)  ((x)>=0 && (x)<ed_fieldx && (y)>=0 &&(y)<ed_fieldy)
 737
 738 /* drawing elements on the three mouse buttons */
 739 static int new_element1 = EL_WALL;
 740 static int new_element2 = EL_EMPTY;
 741 static int new_element3 = EL_SAND;
 742
 743 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
 744                                 (button) == 2 ? new_element2 : \
 745                                 (button) == 3 ? new_element3 : EL_EMPTY)
 746 #define BUTTON_STEPSIZE(button) ((button) == 1 ? 1 : (button) == 2 ? 5 : 10)
 747
 748 /* forward declaration for internal use */
 749 static void ModifyEditorCounter(int, int);
 750 static void ModifyEditorCounterLimits(int, int, int);
 751 static void DrawDrawingWindow();
 752 static void DrawLevelInfoWindow();
 753 static void DrawPropertiesWindow();
 754 static void CopyLevelToUndoBuffer(int);
 755 static void HandleDrawingAreas(struct GadgetInfo *);
 756 static void HandleCounterButtons(struct GadgetInfo *);
 757 static void HandleTextInputGadgets(struct GadgetInfo *);
 758 static void HandleRadiobuttons(struct GadgetInfo *);
 759 static void HandleCheckbuttons(struct GadgetInfo *);
 760 static void HandleControlButtons(struct GadgetInfo *);
 761 static void HandleDrawingAreaInfo(struct GadgetInfo *);
 762
 763 static struct GadgetInfo *level_editor_gadget[NUM_EDITOR_GADGETS];
 764
 765 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
 766 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
 767 static boolean draw_with_brush = FALSE;
 768 static int properties_element = 0;
 769
 770 static short ElementContent[MAX_ELEMENT_CONTENTS][3][3];
 771 static short FieldBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 772 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 773 static int undo_buffer_position = 0;
 774 static int undo_buffer_steps = 0;
 775
 776 static int edit_mode;
 777
 778 static int counter_xsize = DXSIZE + FONT2_XSIZE - 2 * ED_GADGET_DISTANCE;
 779
 780 int element_shift = 0;
 781
 782 int editor_el_boulderdash[] =
 783 {
 784   EL_CHAR('B'),
 785   EL_CHAR('O'),
 786   EL_CHAR('U'),
 787   EL_CHAR('L'),
 788
 789   EL_CHAR('-'),
 790   EL_CHAR('D'),
 791   EL_CHAR('E'),
 792   EL_CHAR('R'),
 793
 794   EL_CHAR('D'),
 795   EL_CHAR('A'),
 796   EL_CHAR('S'),
 797   EL_CHAR('H'),
 798
 799   EL_PLAYER1,
 800   EL_EMPTY,
 801   EL_SAND,
 802   EL_STEELWALL,
 803
 804   EL_BD_WALL,
 805   EL_BD_MAGIC_WALL,
 806   EL_EXIT_CLOSED,
 807   EL_EXIT_OPEN,
 808
 809   EL_BD_DIAMOND,
 810   EL_BD_BUTTERFLY_UP,
 811   EL_BD_FIREFLY_UP,
 812   EL_BD_ROCK,
 813
 814   EL_BD_BUTTERFLY_LEFT,
 815   EL_BD_FIREFLY_LEFT,
 816   EL_BD_BUTTERFLY_RIGHT,
 817   EL_BD_FIREFLY_RIGHT,
 818
 819   EL_BD_AMOEBA,
 820   EL_BD_BUTTERFLY_DOWN,
 821   EL_BD_FIREFLY_DOWN,
 822   EL_EMPTY,
 823 };
 824 int num_editor_el_boulderdash = SIZEOF_ARRAY_INT(editor_el_boulderdash);
 825
 826 int editor_el_emerald_mine[] =
 827 {
 828   EL_CHAR('E'),
 829   EL_CHAR('M'),
 830   EL_CHAR('E'),
 831   EL_CHAR('-'),
 832
 833   EL_CHAR('R'),
 834   EL_CHAR('A'),
 835   EL_CHAR('L'),
 836   EL_CHAR('D'),
 837
 838   EL_CHAR('M'),
 839   EL_CHAR('I'),
 840   EL_CHAR('N'),
 841   EL_CHAR('E'),
 842
 843   EL_PLAYER1,
 844   EL_PLAYER2,
 845   EL_PLAYER3,
 846   EL_PLAYER4,
 847
 848   EL_PLAYER1,
 849   EL_EMPTY,
 850   EL_SAND,
 851   EL_ROCK,
 852
 853   EL_STEELWALL,
 854   EL_WALL,
 855   EL_WALL_CRUMBLED,
 856   EL_MAGIC_WALL,
 857
 858   EL_EMERALD,
 859   EL_DIAMOND,
 860   EL_NUT,
 861   EL_BOMB,
 862
 863   EL_WALL_EMERALD,
 864   EL_WALL_DIAMOND,
 865   EL_QUICKSAND_EMPTY,
 866   EL_QUICKSAND_FULL,
 867
 868   EL_DYNAMITE,
 869   EL_DYNAMITE_ACTIVE,
 870   EL_EXIT_CLOSED,
 871   EL_EXIT_OPEN,
 872
 873   EL_YAMYAM,
 874   EL_BUG_UP,
 875   EL_SPACESHIP_UP,
 876   EL_ROBOT,
 877
 878   EL_BUG_LEFT,
 879   EL_SPACESHIP_LEFT,
 880   EL_BUG_RIGHT,
 881   EL_SPACESHIP_RIGHT,
 882
 883   EL_ROBOT_WHEEL,
 884   EL_BUG_DOWN,
 885   EL_SPACESHIP_DOWN,
 886   EL_INVISIBLE_WALL,
 887
 888   EL_ACIDPOOL_TOPLEFT,
 889   EL_ACID,
 890   EL_ACIDPOOL_TOPRIGHT,
 891   EL_EMPTY,
 892
 893   EL_ACIDPOOL_BOTTOMLEFT,
 894   EL_ACIDPOOL_BOTTOM,
 895   EL_ACIDPOOL_BOTTOMRIGHT,
 896   EL_EMPTY,
 897
 898   EL_AMOEBA_DROP,
 899   EL_AMOEBA_DEAD,
 900   EL_AMOEBA_WET,
 901   EL_AMOEBA_DRY,
 902
 903   EL_EM_KEY1_FILE,
 904   EL_EM_KEY2_FILE,
 905   EL_EM_KEY3_FILE,
 906   EL_EM_KEY4_FILE,
 907
 908   EL_EM_GATE1,
 909   EL_EM_GATE2,
 910   EL_EM_GATE3,
 911   EL_EM_GATE4,
 912
 913   EL_EM_GATE1_GRAY,
 914   EL_EM_GATE2_GRAY,
 915   EL_EM_GATE3_GRAY,
 916   EL_EM_GATE4_GRAY,
 917 };
 918 int num_editor_el_emerald_mine = SIZEOF_ARRAY_INT(editor_el_emerald_mine);
 919
 920 int editor_el_more[] =
 921 {
 922   EL_CHAR('M'),
 923   EL_CHAR('O'),
 924   EL_CHAR('R'),
 925   EL_CHAR('E'),
 926
 927   EL_KEY1,
 928   EL_KEY2,
 929   EL_KEY3,
 930   EL_KEY4,
 931
 932   EL_GATE1,
 933   EL_GATE2,
 934   EL_GATE3,
 935   EL_GATE4,
 936
 937   EL_GATE1_GRAY,
 938   EL_GATE2_GRAY,
 939   EL_GATE3_GRAY,
 940   EL_GATE4_GRAY,
 941
 942   EL_ARROW_BLUE_LEFT,
 943   EL_ARROW_BLUE_RIGHT,
 944   EL_ARROW_BLUE_UP,
 945   EL_ARROW_BLUE_DOWN,
 946
 947   EL_AMOEBA_FULL,
 948   EL_EMERALD_YELLOW,
 949   EL_EMERALD_RED,
 950   EL_EMERALD_PURPLE,
 951
 952   EL_WALL_BD_DIAMOND,
 953   EL_WALL_EMERALD_YELLOW,
 954   EL_WALL_EMERALD_RED,
 955   EL_WALL_EMERALD_PURPLE,
 956
 957   EL_GAMEOFLIFE,
 958   EL_PACMAN_UP,
 959   EL_TIME_ORB_FULL,
 960   EL_TIME_ORB_EMPTY,
 961
 962   EL_PACMAN_LEFT,
 963   EL_DARK_YAMYAM,
 964   EL_PACMAN_RIGHT,
 965   EL_WALL_GROWING,
 966
 967   EL_BIOMAZE,
 968   EL_PACMAN_DOWN,
 969   EL_LAMP,
 970   EL_LAMP_ACTIVE,
 971
 972   EL_DYNABOMB_NR,
 973   EL_DYNABOMB_SZ,
 974   EL_DYNABOMB_XL,
 975   EL_STONEBLOCK,
 976
 977   EL_MOLE,
 978   EL_PENGUIN,
 979   EL_PIG,
 980   EL_DRAGON,
 981
 982   EL_EMPTY,
 983   EL_MOLE_UP,
 984   EL_EMPTY,
 985   EL_EMPTY,
 986
 987   EL_MOLE_LEFT,
 988   EL_EMPTY,
 989   EL_MOLE_RIGHT,
 990   EL_EMPTY,
 991
 992   EL_EMPTY,
 993   EL_MOLE_DOWN,
 994   EL_BALLOON,
 995   EL_BALLOON_SEND_ANY_DIRECTION,
 996
 997   EL_BALLOON_SEND_LEFT,
 998   EL_BALLOON_SEND_RIGHT,
 999   EL_BALLOON_SEND_UP,
1000   EL_BALLOON_SEND_DOWN,
1001
1002   EL_SATELLITE,
1003   EL_WALL_GROWING_X,
1004   EL_WALL_GROWING_Y,
1005   EL_WALL_GROWING_XY,
1006
1007   EL_INVISIBLE_STEELWALL,
1008   EL_INVISIBLE_WALL,
1009   EL_SPEED_PILL,
1010   EL_BLACK_ORB,
1011
1012   EL_EMC_STEELWALL1,
1013   EL_EMC_WALL_PILLAR_UPPER,
1014   EL_EMC_WALL_PILLAR_MIDDLE,
1015   EL_EMC_WALL_PILLAR_LOWER,
1016
1017   EL_EMC_WALL4,
1018   EL_EMC_WALL5,
1019   EL_EMC_WALL6,
1020   EL_EMC_WALL7,
1021 };
1022 int num_editor_el_more = SIZEOF_ARRAY_INT(editor_el_more);
1023
1024 int editor_el_sokoban[] =
1025 {
1026   EL_CHAR('S'),
1027   EL_CHAR('O'),
1028   EL_CHAR('K'),
1029   EL_CHAR('O'),
1030
1031   EL_CHAR('-'),
1032   EL_CHAR('B'),
1033   EL_CHAR('A'),
1034   EL_CHAR('N'),
1035
1036   EL_SOKOBAN_OBJECT,
1037   EL_SOKOBAN_FIELD_EMPTY,
1038   EL_SOKOBAN_FIELD_FULL,
1039   EL_STEELWALL,
1040 };
1041 int num_editor_el_sokoban = SIZEOF_ARRAY_INT(editor_el_sokoban);
1042
1043 int editor_el_supaplex[] =
1044 {
1045   EL_CHAR('S'),
1046   EL_CHAR('U'),
1047   EL_CHAR('P'),
1048   EL_CHAR('A'),
1049
1050   EL_CHAR('P'),
1051   EL_CHAR('L'),
1052   EL_CHAR('E'),
1053   EL_CHAR('X'),
1054
1055   EL_SP_EMPTY,
1056   EL_SP_ZONK,
1057   EL_SP_BASE,
1058   EL_SP_MURPHY,
1059
1060   EL_SP_INFOTRON,
1061   EL_SP_CHIP_SINGLE,
1062   EL_SP_HARD_GRAY,
1063   EL_SP_EXIT_CLOSED,
1064
1065   EL_SP_DISK_ORANGE,
1066   EL_SP_PORT1_RIGHT,
1067   EL_SP_PORT1_DOWN,
1068   EL_SP_PORT1_LEFT,
1069
1070   EL_SP_PORT1_UP,
1071   EL_SP_PORT2_RIGHT,
1072   EL_SP_PORT2_DOWN,
1073   EL_SP_PORT2_LEFT,
1074
1075   EL_SP_PORT2_UP,
1076   EL_SP_SNIKSNAK,
1077   EL_SP_DISK_YELLOW,
1078   EL_SP_TERMINAL,
1079
1080   EL_SP_DISK_RED,
1081   EL_SP_PORT_Y,
1082   EL_SP_PORT_X,
1083   EL_SP_PORT_XY,
1084
1085   EL_SP_ELECTRON,
1086   EL_SP_BUGGY_BASE,
1087   EL_SP_CHIP_LEFT,
1088   EL_SP_CHIP_RIGHT,
1089
1090   EL_SP_HARD_BASE1,
1091   EL_SP_HARD_GREEN,
1092   EL_SP_HARD_BLUE,
1093   EL_SP_HARD_RED,
1094
1095   EL_SP_HARD_YELLOW,
1096   EL_SP_HARD_BASE2,
1097   EL_SP_HARD_BASE3,
1098   EL_SP_HARD_BASE4,
1099
1100   EL_SP_HARD_BASE5,
1101   EL_SP_HARD_BASE6,
1102   EL_SP_CHIP_UPPER,
1103   EL_SP_CHIP_LOWER,
1104 };
1105 int num_editor_el_supaplex = SIZEOF_ARRAY_INT(editor_el_supaplex);
1106
1107 int editor_el_diamond_caves[] =
1108 {
1109   EL_CHAR('D'),
1110   EL_CHAR('I'),
1111   EL_CHAR('A'),
1112   EL_CHAR('-'),
1113
1114   EL_CHAR('M'),
1115   EL_CHAR('O'),
1116   EL_CHAR('N'),
1117   EL_CHAR('D'),
1118
1119   EL_CHAR('C'),
1120   EL_CHAR('A'),
1121   EL_CHAR('V'),
1122   EL_CHAR('E'),
1123
1124   EL_CHAR('S'),
1125   EL_CHAR(' '),
1126   EL_CHAR('I'),
1127   EL_CHAR('I'),
1128
1129   EL_PEARL,
1130   EL_CRYSTAL,
1131   EL_WALL_PEARL,
1132   EL_WALL_CRYSTAL,
1133
1134   EL_CONVEYOR_BELT1_LEFT,
1135   EL_CONVEYOR_BELT1_MIDDLE,
1136   EL_CONVEYOR_BELT1_RIGHT,
1137   EL_CONVEYOR_BELT1_SWITCH_MIDDLE,
1138
1139   EL_CONVEYOR_BELT2_LEFT,
1140   EL_CONVEYOR_BELT2_MIDDLE,
1141   EL_CONVEYOR_BELT2_RIGHT,
1142   EL_CONVEYOR_BELT2_SWITCH_MIDDLE,
1143
1144   EL_CONVEYOR_BELT3_LEFT,
1145   EL_CONVEYOR_BELT3_MIDDLE,
1146   EL_CONVEYOR_BELT3_RIGHT,
1147   EL_CONVEYOR_BELT3_SWITCH_MIDDLE,
1148
1149   EL_CONVEYOR_BELT4_LEFT,
1150   EL_CONVEYOR_BELT4_MIDDLE,
1151   EL_CONVEYOR_BELT4_RIGHT,
1152   EL_CONVEYOR_BELT4_SWITCH_MIDDLE,
1153
1154   EL_CONVEYOR_BELT1_SWITCH_LEFT,
1155   EL_CONVEYOR_BELT2_SWITCH_LEFT,
1156   EL_CONVEYOR_BELT3_SWITCH_LEFT,
1157   EL_CONVEYOR_BELT4_SWITCH_LEFT,
1158
1159   EL_CONVEYOR_BELT1_SWITCH_RIGHT,
1160   EL_CONVEYOR_BELT2_SWITCH_RIGHT,
1161   EL_CONVEYOR_BELT3_SWITCH_RIGHT,
1162   EL_CONVEYOR_BELT4_SWITCH_RIGHT,
1163
1164   EL_SWITCHGATE_OPEN,
1165   EL_SWITCHGATE_CLOSED,
1166   EL_SWITCHGATE_SWITCH_UP,
1167   EL_ENVELOPE,
1168
1169   EL_TIMEGATE_CLOSED,
1170   EL_TIMEGATE_OPEN,
1171   EL_TIMEGATE_SWITCH,
1172   EL_EMPTY,
1173
1174   EL_LANDMINE,
1175   EL_INVISIBLE_SAND,
1176   EL_STEELWALL_SLANTED,
1177   EL_EMPTY,
1178
1179   EL_SIGN_EXCLAMATION,
1180   EL_SIGN_STOP,
1181   EL_LIGHT_SWITCH,
1182   EL_LIGHT_SWITCH_ACTIVE,
1183
1184   EL_SHIELD_NORMAL,
1185   EL_SHIELD_DEADLY,
1186   EL_EXTRA_TIME,
1187   EL_EMPTY,
1188 };
1189 int num_editor_el_diamond_caves = SIZEOF_ARRAY_INT(editor_el_diamond_caves);
1190
1191 int editor_el_dx_boulderdash[] =
1192 {
1193   EL_CHAR('D'),
1194   EL_CHAR('X'),
1195   EL_CHAR('-'),
1196   EL_CHAR(' '),
1197
1198   EL_CHAR('B'),
1199   EL_CHAR('O'),
1200   EL_CHAR('U'),
1201   EL_CHAR('L'),
1202
1203   EL_CHAR('-'),
1204   EL_CHAR('D'),
1205   EL_CHAR('E'),
1206   EL_CHAR('R'),
1207
1208   EL_CHAR('D'),
1209   EL_CHAR('A'),
1210   EL_CHAR('S'),
1211   EL_CHAR('H'),
1212
1213   EL_SPRING,
1214   EL_TUBE_RIGHT_DOWN,
1215   EL_TUBE_HORIZONTAL_DOWN,
1216   EL_TUBE_LEFT_DOWN,
1217
1218   EL_TUBE_HORIZONTAL,
1219   EL_TUBE_VERTICAL_RIGHT,
1220   EL_TUBE_ALL,
1221   EL_TUBE_VERTICAL_LEFT,
1222
1223   EL_TUBE_VERTICAL,
1224   EL_TUBE_RIGHT_UP,
1225   EL_TUBE_HORIZONTAL_UP,
1226   EL_TUBE_LEFT_UP,
1227
1228   EL_TRAP,
1229   EL_DX_SUPABOMB,
1230   EL_EMPTY,
1231   EL_EMPTY
1232 };
1233 int num_editor_el_dx_boulderdash = SIZEOF_ARRAY_INT(editor_el_dx_boulderdash);
1234
1235 int editor_el_chars[] =
1236 {
1237   EL_CHAR('T'),
1238   EL_CHAR('E'),
1239   EL_CHAR('X'),
1240   EL_CHAR('T'),
1241
1242   EL_CHAR(' '),
1243   EL_CHAR('!'),
1244   EL_CHAR('"'),
1245   EL_CHAR('#'),
1246
1247   EL_CHAR('$'),
1248   EL_CHAR('%'),
1249   EL_CHAR('&'),
1250   EL_CHAR('\''),
1251
1252   EL_CHAR('('),
1253   EL_CHAR(')'),
1254   EL_CHAR('*'),
1255   EL_CHAR('+'),
1256
1257   EL_CHAR(','),
1258   EL_CHAR('-'),
1259   EL_CHAR('.'),
1260   EL_CHAR('/'),
1261
1262   EL_CHAR('0'),
1263   EL_CHAR('1'),
1264   EL_CHAR('2'),
1265   EL_CHAR('3'),
1266
1267   EL_CHAR('4'),
1268   EL_CHAR('5'),
1269   EL_CHAR('6'),
1270   EL_CHAR('7'),
1271
1272   EL_CHAR('8'),
1273   EL_CHAR('9'),
1274   EL_CHAR(':'),
1275   EL_CHAR(';'),
1276
1277   EL_CHAR('<'),
1278   EL_CHAR('='),
1279   EL_CHAR('>'),
1280   EL_CHAR('?'),
1281
1282   EL_CHAR('@'),
1283   EL_CHAR('A'),
1284   EL_CHAR('B'),
1285   EL_CHAR('C'),
1286
1287   EL_CHAR('D'),
1288   EL_CHAR('E'),
1289   EL_CHAR('F'),
1290   EL_CHAR('G'),
1291
1292   EL_CHAR('H'),
1293   EL_CHAR('I'),
1294   EL_CHAR('J'),
1295   EL_CHAR('K'),
1296
1297   EL_CHAR('L'),
1298   EL_CHAR('M'),
1299   EL_CHAR('N'),
1300   EL_CHAR('O'),
1301
1302   EL_CHAR('P'),
1303   EL_CHAR('Q'),
1304   EL_CHAR('R'),
1305   EL_CHAR('S'),
1306
1307   EL_CHAR('T'),
1308   EL_CHAR('U'),
1309   EL_CHAR('V'),
1310   EL_CHAR('W'),
1311
1312   EL_CHAR('X'),
1313   EL_CHAR('Y'),
1314   EL_CHAR('Z'),
1315   EL_CHAR('Ä'),
1316
1317   EL_CHAR('Ö'),
1318   EL_CHAR('Ü'),
1319   EL_CHAR('^'),
1320   EL_CHAR('_'),
1321
1322   EL_CHAR(' '),
1323   EL_CHAR('°'),
1324   EL_CHAR('´'),
1325   EL_CHAR('|')
1326 };
1327 int num_editor_el_chars = SIZEOF_ARRAY_INT(editor_el_chars);
1328
1329 int editor_el_custom[] =
1330 {
1331   EL_CHAR('C'),
1332   EL_CHAR('U'),
1333   EL_CHAR('S'),
1334   EL_CHAR('-'),
1335
1336   EL_CHAR('T'),
1337   EL_CHAR('O'),
1338   EL_CHAR('M'),
1339   EL_CHAR(' '),
1340
1341   EL_CHAR('E'),
1342   EL_CHAR('L'),
1343   EL_CHAR('E'),
1344   EL_CHAR('M'),
1345
1346   EL_CHAR('E'),
1347   EL_CHAR('N'),
1348   EL_CHAR('T'),
1349   EL_CHAR('S'),
1350
1351   EL_CUSTOM_START + 0,
1352   EL_CUSTOM_START + 1,
1353   EL_CUSTOM_START + 2,
1354   EL_CUSTOM_START + 3,
1355
1356   EL_CUSTOM_START + 4,
1357   EL_CUSTOM_START + 5,
1358   EL_CUSTOM_START + 6,
1359   EL_CUSTOM_START + 7,
1360
1361   EL_CUSTOM_START + 8,
1362   EL_CUSTOM_START + 9,
1363   EL_CUSTOM_START + 10,
1364   EL_CUSTOM_START + 11,
1365
1366   EL_CUSTOM_START + 12,
1367   EL_CUSTOM_START + 13,
1368   EL_CUSTOM_START + 14,
1369   EL_CUSTOM_START + 15,
1370
1371   EL_CUSTOM_START + 16,
1372   EL_CUSTOM_START + 17,
1373   EL_CUSTOM_START + 18,
1374   EL_CUSTOM_START + 19,
1375
1376   EL_CUSTOM_START + 20,
1377   EL_CUSTOM_START + 21,
1378   EL_CUSTOM_START + 22,
1379   EL_CUSTOM_START + 23,
1380
1381   EL_CUSTOM_START + 24,
1382   EL_CUSTOM_START + 25,
1383   EL_CUSTOM_START + 26,
1384   EL_CUSTOM_START + 27,
1385
1386   EL_CUSTOM_START + 28,
1387   EL_CUSTOM_START + 29,
1388   EL_CUSTOM_START + 30,
1389   EL_CUSTOM_START + 31,
1390
1391   EL_CUSTOM_START + 32,
1392   EL_CUSTOM_START + 33,
1393   EL_CUSTOM_START + 34,
1394   EL_CUSTOM_START + 35,
1395
1396   EL_CUSTOM_START + 36,
1397   EL_CUSTOM_START + 37,
1398   EL_CUSTOM_START + 38,
1399   EL_CUSTOM_START + 39,
1400
1401   EL_CUSTOM_START + 40,
1402   EL_CUSTOM_START + 41,
1403   EL_CUSTOM_START + 42,
1404   EL_CUSTOM_START + 43,
1405
1406   EL_CUSTOM_START + 44,
1407   EL_CUSTOM_START + 45,
1408   EL_CUSTOM_START + 46,
1409   EL_CUSTOM_START + 47,
1410
1411   EL_CUSTOM_START + 48,
1412   EL_CUSTOM_START + 49,
1413   EL_CUSTOM_START + 50,
1414   EL_CUSTOM_START + 51,
1415
1416   EL_CUSTOM_START + 52,
1417   EL_CUSTOM_START + 53,
1418   EL_CUSTOM_START + 54,
1419   EL_CUSTOM_START + 55,
1420
1421   EL_CUSTOM_START + 56,
1422   EL_CUSTOM_START + 57,
1423   EL_CUSTOM_START + 58,
1424   EL_CUSTOM_START + 59,
1425
1426   EL_CUSTOM_START + 60,
1427   EL_CUSTOM_START + 61,
1428   EL_CUSTOM_START + 62,
1429   EL_CUSTOM_START + 63,
1430
1431   EL_CUSTOM_START + 64,
1432   EL_CUSTOM_START + 65,
1433   EL_CUSTOM_START + 66,
1434   EL_CUSTOM_START + 67,
1435
1436   EL_CUSTOM_START + 68,
1437   EL_CUSTOM_START + 69,
1438   EL_CUSTOM_START + 70,
1439   EL_CUSTOM_START + 71,
1440
1441   EL_CUSTOM_START + 72,
1442   EL_CUSTOM_START + 73,
1443   EL_CUSTOM_START + 74,
1444   EL_CUSTOM_START + 75,
1445
1446   EL_CUSTOM_START + 76,
1447   EL_CUSTOM_START + 77,
1448   EL_CUSTOM_START + 78,
1449   EL_CUSTOM_START + 79,
1450
1451   EL_CUSTOM_START + 80,
1452   EL_CUSTOM_START + 81,
1453   EL_CUSTOM_START + 82,
1454   EL_CUSTOM_START + 83,
1455
1456   EL_CUSTOM_START + 84,
1457   EL_CUSTOM_START + 85,
1458   EL_CUSTOM_START + 86,
1459   EL_CUSTOM_START + 87,
1460
1461   EL_CUSTOM_START + 88,
1462   EL_CUSTOM_START + 89,
1463   EL_CUSTOM_START + 90,
1464   EL_CUSTOM_START + 91,
1465
1466   EL_CUSTOM_START + 92,
1467   EL_CUSTOM_START + 93,
1468   EL_CUSTOM_START + 94,
1469   EL_CUSTOM_START + 95,
1470
1471   EL_CUSTOM_START + 96,
1472   EL_CUSTOM_START + 97,
1473   EL_CUSTOM_START + 98,
1474   EL_CUSTOM_START + 99,
1475
1476   EL_CUSTOM_START + 100,
1477   EL_CUSTOM_START + 101,
1478   EL_CUSTOM_START + 102,
1479   EL_CUSTOM_START + 103,
1480
1481   EL_CUSTOM_START + 104,
1482   EL_CUSTOM_START + 105,
1483   EL_CUSTOM_START + 106,
1484   EL_CUSTOM_START + 107,
1485
1486   EL_CUSTOM_START + 108,
1487   EL_CUSTOM_START + 109,
1488   EL_CUSTOM_START + 110,
1489   EL_CUSTOM_START + 111,
1490
1491   EL_CUSTOM_START + 112,
1492   EL_CUSTOM_START + 113,
1493   EL_CUSTOM_START + 114,
1494   EL_CUSTOM_START + 115,
1495
1496   EL_CUSTOM_START + 116,
1497   EL_CUSTOM_START + 117,
1498   EL_CUSTOM_START + 118,
1499   EL_CUSTOM_START + 119,
1500
1501   EL_CUSTOM_START + 120,
1502   EL_CUSTOM_START + 121,
1503   EL_CUSTOM_START + 122,
1504   EL_CUSTOM_START + 123,
1505
1506   EL_CUSTOM_START + 124,
1507   EL_CUSTOM_START + 125,
1508   EL_CUSTOM_START + 126,
1509   EL_CUSTOM_START + 127
1510 };
1511 int num_editor_el_custom = SIZEOF_ARRAY_INT(editor_el_custom);
1512
1513 int *editor_elements = NULL;    /* dynamically allocated */
1514 int num_editor_elements = 0;    /* dynamically determined */
1515
1516 struct
1517 {
1518   boolean *setup_value;
1519   int *element_list;
1520   int *element_list_size;
1521
1522   boolean last_setup_value;
1523 }
1524 editor_elements_info[] =
1525 {
1526   { &setup.editor.el_boulderdash,       editor_el_boulderdash,
1527     &num_editor_el_boulderdash                                          },
1528   { &setup.editor.el_emerald_mine,      editor_el_emerald_mine,
1529     &num_editor_el_emerald_mine                                         },
1530   { &setup.editor.el_more,              editor_el_more,
1531     &num_editor_el_more                                                 },
1532   { &setup.editor.el_sokoban,           editor_el_sokoban,
1533     &num_editor_el_sokoban                                              },
1534   { &setup.editor.el_supaplex,          editor_el_supaplex,
1535     &num_editor_el_supaplex                                             },
1536   { &setup.editor.el_diamond_caves,     editor_el_diamond_caves,
1537     &num_editor_el_diamond_caves                                        },
1538   { &setup.editor.el_dx_boulderdash,    editor_el_dx_boulderdash,
1539     &num_editor_el_dx_boulderdash                                       },
1540   { &setup.editor.el_chars,             editor_el_chars,
1541     &num_editor_el_chars                                                },
1542   { &setup.editor.el_custom,            editor_el_custom,
1543     &num_editor_el_custom                                               },
1544   { NULL,                               NULL,
1545     NULL                                                                }
1546 };
1547
1548 static void ReinitializeElementList()
1549 {
1550   int pos = 0;
1551   int i, j;
1552
1553   if (editor_elements != NULL)
1554     free(editor_elements);
1555
1556   num_editor_elements = 0;
1557
1558   /* determine size of element list */
1559   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1560     if (*editor_elements_info[i].setup_value)
1561       num_editor_elements += *editor_elements_info[i].element_list_size;
1562
1563   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
1564   {
1565     /* workaround: offer at least as many elements as element buttons exist */
1566     int list_nr = 1;    /* see above: editor_elements_info for Emerald Mine */
1567
1568     *editor_elements_info[list_nr].setup_value = TRUE;
1569     num_editor_elements += *editor_elements_info[list_nr].element_list_size;
1570   }
1571
1572   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
1573
1574   /* fill element list */
1575   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1576     if (*editor_elements_info[i].setup_value)
1577       for (j=0; j<*editor_elements_info[i].element_list_size; j++)
1578         editor_elements[pos++] = editor_elements_info[i].element_list[j];
1579 }
1580
1581 static void ReinitializeElementListButtons()
1582 {
1583   static boolean initialization_needed = TRUE;
1584   int i;
1585
1586   if (!initialization_needed)   /* check if editor element setup has changed */
1587     for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1588       if (editor_elements_info[i].last_setup_value !=
1589           *editor_elements_info[i].setup_value)
1590         initialization_needed = TRUE;
1591
1592   if (!initialization_needed)
1593     return;
1594
1595   FreeLevelEditorGadgets();
1596   CreateLevelEditorGadgets();
1597
1598   /* store current setup values for next invocation of this function */
1599   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1600     editor_elements_info[i].last_setup_value =
1601       *editor_elements_info[i].setup_value;
1602
1603   initialization_needed = FALSE;
1604 }
1605
1606 static char *getElementInfoText(int element)
1607 {
1608   char *info_text = NULL;
1609
1610   if (element < NUM_FILE_ELEMENTS)
1611   {
1612     if (element_info[element].custom_description != NULL)
1613       info_text = element_info[element].custom_description;
1614     else if (element_info[element].editor_description != NULL)
1615       info_text = element_info[element].editor_description;
1616   }
1617
1618   if (info_text == NULL)
1619   {
1620     info_text = "unknown";
1621
1622     Error(ERR_WARN, "no element description for element %d", element);
1623   }
1624
1625   return info_text;
1626 }
1627
1628 static void ScrollMiniLevel(int from_x, int from_y, int scroll)
1629 {
1630   int x,y;
1631   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
1632   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
1633
1634   BlitBitmap(drawto, drawto,
1635              SX + (dx == -1 ? MINI_TILEX : 0),
1636              SY + (dy == -1 ? MINI_TILEY : 0),
1637              (ed_fieldx * MINI_TILEX) - (dx != 0 ? MINI_TILEX : 0),
1638              (ed_fieldy * MINI_TILEY) - (dy != 0 ? MINI_TILEY : 0),
1639              SX + (dx == +1 ? MINI_TILEX : 0),
1640              SY + (dy == +1 ? MINI_TILEY : 0));
1641   if (dx)
1642   {
1643     x = (dx == 1 ? 0 : ed_fieldx - 1);
1644     for(y=0; y<ed_fieldy; y++)
1645       DrawMiniElementOrWall(x, y, from_x, from_y);
1646   }
1647   else if (dy)
1648   {
1649     y = (dy == 1 ? 0 : ed_fieldy - 1);
1650     for(x=0; x<ed_fieldx; x++)
1651       DrawMiniElementOrWall(x, y, from_x, from_y);
1652   }
1653
1654   redraw_mask |= REDRAW_FIELD;
1655   BackToFront();
1656 }
1657
1658 static void CreateControlButtons()
1659 {
1660   Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
1661   struct GadgetInfo *gi;
1662   unsigned long event_mask;
1663   int i;
1664
1665   /* create toolbox buttons */
1666   for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
1667   {
1668     int id = i;
1669     int width, height;
1670     int gd_xoffset, gd_yoffset;
1671     int gd_x1, gd_x2, gd_y1, gd_y2;
1672     int button_type;
1673     int radio_button_nr;
1674     boolean checked;
1675
1676     if (id == GADGET_ID_SINGLE_ITEMS ||
1677         id == GADGET_ID_CONNECTED_ITEMS ||
1678         id == GADGET_ID_LINE ||
1679         id == GADGET_ID_ARC ||
1680         id == GADGET_ID_TEXT ||
1681         id == GADGET_ID_RECTANGLE ||
1682         id == GADGET_ID_FILLED_BOX ||
1683         id == GADGET_ID_FLOOD_FILL ||
1684         id == GADGET_ID_GRAB_BRUSH ||
1685         id == GADGET_ID_PICK_ELEMENT)
1686     {
1687       button_type = GD_TYPE_RADIO_BUTTON;
1688       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
1689       checked = (id == drawing_function ? TRUE : FALSE);
1690       event_mask = GD_EVENT_PRESSED;
1691     }
1692     else
1693     {
1694       button_type = GD_TYPE_NORMAL_BUTTON;
1695       radio_button_nr = RADIO_NR_NONE;
1696       checked = FALSE;
1697
1698       if (id == GADGET_ID_WRAP_LEFT ||
1699           id == GADGET_ID_WRAP_RIGHT ||
1700           id == GADGET_ID_WRAP_UP ||
1701           id == GADGET_ID_WRAP_DOWN)
1702         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
1703       else
1704         event_mask = GD_EVENT_RELEASED;
1705     }
1706
1707     if (id < ED_NUM_CTRL1_BUTTONS)
1708     {
1709       int x = i % ED_CTRL1_BUTTONS_HORIZ;
1710       int y = i / ED_CTRL1_BUTTONS_HORIZ;
1711
1712       gd_xoffset = ED_CTRL1_BUTTONS_XPOS + x * ED_CTRL1_BUTTON_XSIZE;
1713       gd_yoffset = ED_CTRL1_BUTTONS_YPOS + y * ED_CTRL1_BUTTON_YSIZE;
1714       width = ED_CTRL1_BUTTON_XSIZE;
1715       height = ED_CTRL1_BUTTON_YSIZE;
1716     }
1717     else
1718     {
1719       int x = (i - ED_NUM_CTRL1_BUTTONS) % ED_CTRL2_BUTTONS_HORIZ;
1720       int y = (i - ED_NUM_CTRL1_BUTTONS) / ED_CTRL2_BUTTONS_HORIZ;
1721
1722       gd_xoffset = ED_CTRL2_BUTTONS_XPOS + x * ED_CTRL2_BUTTON_XSIZE;
1723       gd_yoffset = ED_CTRL2_BUTTONS_YPOS + y * ED_CTRL2_BUTTON_YSIZE;
1724       width = ED_CTRL2_BUTTON_XSIZE;
1725       height = ED_CTRL2_BUTTON_YSIZE;
1726     }
1727
1728     gd_x1 = DOOR_GFX_PAGEX8 + gd_xoffset;
1729     gd_x2 = DOOR_GFX_PAGEX7 + gd_xoffset;
1730     gd_y1  = DOOR_GFX_PAGEY1 + ED_CTRL_BUTTONS_GFX_YPOS + gd_yoffset;
1731     gd_y2  = DOOR_GFX_PAGEY1 + ED_CTRL_BUTTONS_ALT_GFX_YPOS + gd_yoffset;
1732
1733     gi = CreateGadget(GDI_CUSTOM_ID, id,
1734                       GDI_CUSTOM_TYPE_ID, i,
1735                       GDI_INFO_TEXT, control_info[i].text,
1736                       GDI_X, EX + gd_xoffset,
1737                       GDI_Y, EY + gd_yoffset,
1738                       GDI_WIDTH, width,
1739                       GDI_HEIGHT, height,
1740                       GDI_TYPE, button_type,
1741                       GDI_STATE, GD_BUTTON_UNPRESSED,
1742                       GDI_RADIO_NR, radio_button_nr,
1743                       GDI_CHECKED, checked,
1744                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
1745                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y1,
1746                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y2,
1747                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
1748                       GDI_EVENT_MASK, event_mask,
1749                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1750                       GDI_CALLBACK_ACTION, HandleControlButtons,
1751                       GDI_END);
1752
1753     if (gi == NULL)
1754       Error(ERR_EXIT, "cannot create gadget");
1755
1756     level_editor_gadget[id] = gi;
1757   }
1758
1759   /* create buttons for scrolling of drawing area and element list */
1760   for (i=0; i<ED_NUM_SCROLLBUTTONS; i++)
1761   {
1762     int id = scrollbutton_info[i].gadget_id;
1763     int x, y, width, height;
1764     int gd_x1, gd_x2, gd_y1, gd_y2;
1765
1766     x = scrollbutton_info[i].x;
1767     y = scrollbutton_info[i].y;
1768
1769     event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
1770
1771     if (id == GADGET_ID_SCROLL_LIST_UP ||
1772         id == GADGET_ID_SCROLL_LIST_DOWN)
1773     {
1774       x += DX;
1775       y += DY;
1776       width = ED_SCROLLBUTTON2_XSIZE;
1777       height = ED_SCROLLBUTTON2_YSIZE;
1778       gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[i].xpos;
1779       gd_y1 = DOOR_GFX_PAGEY1 + scrollbutton_info[i].ypos;
1780       gd_x2 = gd_x1 - ED_SCROLLBUTTON2_XSIZE;
1781       gd_y2 = gd_y1;
1782     }
1783     else
1784     {
1785       x += SX;
1786       y += SY;
1787       width = ED_SCROLLBUTTON_XSIZE;
1788       height = ED_SCROLLBUTTON_YSIZE;
1789       gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[i].xpos;
1790       gd_y1 = DOOR_GFX_PAGEY1 + scrollbutton_info[i].ypos;
1791       gd_x2 = gd_x1 - ED_SCROLLBUTTON_XSIZE;
1792       gd_y2 = gd_y1;
1793     }
1794
1795     gi = CreateGadget(GDI_CUSTOM_ID, id,
1796                       GDI_CUSTOM_TYPE_ID, i,
1797                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
1798                       GDI_X, x,
1799                       GDI_Y, y,
1800                       GDI_WIDTH, width,
1801                       GDI_HEIGHT, height,
1802                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
1803                       GDI_STATE, GD_BUTTON_UNPRESSED,
1804                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
1805                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
1806                       GDI_EVENT_MASK, event_mask,
1807                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1808                       GDI_CALLBACK_ACTION, HandleControlButtons,
1809                       GDI_END);
1810
1811     if (gi == NULL)
1812       Error(ERR_EXIT, "cannot create gadget");
1813
1814     level_editor_gadget[id] = gi;
1815   }
1816
1817   /* create buttons for element list */
1818   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
1819   {
1820     Bitmap *deco_bitmap;
1821     int deco_x, deco_y, deco_xpos, deco_ypos;
1822     int gd_xoffset, gd_yoffset;
1823     int gd_x1, gd_x2, gd_y;
1824     int x = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
1825     int y = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
1826     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
1827     int element = editor_elements[i];
1828
1829     event_mask = GD_EVENT_RELEASED;
1830
1831     gd_xoffset = ED_ELEMENTLIST_XPOS + x * ED_ELEMENTLIST_XSIZE;
1832     gd_yoffset = ED_ELEMENTLIST_YPOS + y * ED_ELEMENTLIST_YSIZE;
1833
1834     gd_x1 = DOOR_GFX_PAGEX6 + ED_ELEMENTLIST_XPOS + ED_ELEMENTLIST_XSIZE;
1835     gd_x2 = DOOR_GFX_PAGEX6 + ED_ELEMENTLIST_XPOS;
1836     gd_y  = DOOR_GFX_PAGEY1 + ED_ELEMENTLIST_YPOS;
1837
1838     getMiniGraphicSource(el2edimg(element), &deco_bitmap, &deco_x, &deco_y);
1839     deco_xpos = (ED_ELEMENTLIST_XSIZE - MINI_TILEX) / 2;
1840     deco_ypos = (ED_ELEMENTLIST_YSIZE - MINI_TILEY) / 2;
1841
1842     gi = CreateGadget(GDI_CUSTOM_ID, id,
1843                       GDI_CUSTOM_TYPE_ID, i,
1844                       GDI_INFO_TEXT, getElementInfoText(element),
1845                       GDI_X, DX + gd_xoffset,
1846                       GDI_Y, DY + gd_yoffset,
1847                       GDI_WIDTH, ED_ELEMENTLIST_XSIZE,
1848                       GDI_HEIGHT, ED_ELEMENTLIST_YSIZE,
1849                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
1850                       GDI_STATE, GD_BUTTON_UNPRESSED,
1851                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
1852                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
1853                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
1854                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
1855                       GDI_DECORATION_SIZE, MINI_TILEX, MINI_TILEY,
1856                       GDI_DECORATION_SHIFTING, 1, 1,
1857                       GDI_EVENT_MASK, event_mask,
1858                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1859                       GDI_CALLBACK_ACTION, HandleControlButtons,
1860                       GDI_END);
1861
1862     if (gi == NULL)
1863       Error(ERR_EXIT, "cannot create gadget");
1864
1865     level_editor_gadget[id] = gi;
1866   }
1867 }
1868
1869 static void CreateCounterButtons()
1870 {
1871   int i;
1872
1873   for (i=0; i<ED_NUM_COUNTERBUTTONS; i++)
1874   {
1875     int j;
1876     int xpos = SX + counterbutton_info[i].x;    /* xpos of down count button */
1877     int ypos = SY + counterbutton_info[i].y;
1878
1879     for (j=0; j<2; j++)
1880     {
1881       Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
1882       struct GadgetInfo *gi;
1883       int id = (j == 0 ?
1884                 counterbutton_info[i].gadget_id_down :
1885                 counterbutton_info[i].gadget_id_up);
1886       int gd_xoffset;
1887       int gd_x, gd_x1, gd_x2, gd_y;
1888       int x_size, y_size;
1889       unsigned long event_mask;
1890       char infotext[MAX_INFOTEXT_LEN + 1];
1891
1892       event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
1893
1894       if (i == ED_COUNTER_ID_SELECT_LEVEL)
1895       {
1896         int sid = (j == 0 ?
1897                    ED_SCROLLBUTTON_ID_AREA_LEFT :
1898                    ED_SCROLLBUTTON_ID_AREA_RIGHT);
1899
1900         event_mask |= GD_EVENT_RELEASED;
1901
1902         if (j == 1)
1903           xpos += 2 * ED_GADGET_DISTANCE;
1904         ypos += ED_GADGET_DISTANCE;
1905
1906         gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[sid].xpos;
1907         gd_x2 = gd_x1 - ED_SCROLLBUTTON_XSIZE;
1908         gd_y  = DOOR_GFX_PAGEY1 + scrollbutton_info[sid].ypos;
1909         x_size = ED_SCROLLBUTTON_XSIZE;
1910         y_size = ED_SCROLLBUTTON_YSIZE;
1911       }
1912       else
1913       {
1914         gd_xoffset = (j == 0 ? ED_BUTTON_MINUS_XPOS : ED_BUTTON_PLUS_XPOS);
1915         gd_x1 = DOOR_GFX_PAGEX4 + gd_xoffset;
1916         gd_x2 = DOOR_GFX_PAGEX3 + gd_xoffset;
1917         gd_y  = DOOR_GFX_PAGEY1 + ED_BUTTON_COUNT_YPOS;
1918         x_size = ED_BUTTON_COUNT_XSIZE;
1919         y_size = ED_BUTTON_COUNT_YSIZE;
1920       }
1921
1922       sprintf(infotext, "%s counter value by 1, 5 or 10",
1923               (j == 0 ? "decrease" : "increase"));
1924
1925       gi = CreateGadget(GDI_CUSTOM_ID, id,
1926                         GDI_CUSTOM_TYPE_ID, i,
1927                         GDI_INFO_TEXT, infotext,
1928                         GDI_X, xpos,
1929                         GDI_Y, ypos,
1930                         GDI_WIDTH, x_size,
1931                         GDI_HEIGHT, y_size,
1932                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
1933                         GDI_STATE, GD_BUTTON_UNPRESSED,
1934                         GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
1935                         GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
1936                         GDI_EVENT_MASK, event_mask,
1937                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1938                         GDI_CALLBACK_ACTION, HandleCounterButtons,
1939                         GDI_END);
1940
1941       if (gi == NULL)
1942         Error(ERR_EXIT, "cannot create gadget");
1943
1944       level_editor_gadget[id] = gi;
1945       xpos += gi->width + ED_GADGET_DISTANCE;   /* xpos of text count button */
1946
1947       if (j == 0)
1948       {
1949         int font_type = FC_YELLOW;
1950         int gd_width = ED_WIN_COUNT_XSIZE;
1951
1952         id = counterbutton_info[i].gadget_id_text;
1953         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
1954
1955         if (i == ED_COUNTER_ID_SELECT_LEVEL)
1956         {
1957           font_type = FC_SPECIAL3;
1958
1959           xpos += 2 * ED_GADGET_DISTANCE;
1960           ypos -= ED_GADGET_DISTANCE;
1961
1962           gd_x = DOOR_GFX_PAGEX6 + ED_WIN_COUNT2_XPOS;
1963           gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT2_YPOS;
1964           gd_width = ED_WIN_COUNT2_XSIZE;
1965         }
1966         else
1967         {
1968           gd_x = DOOR_GFX_PAGEX4 + ED_WIN_COUNT_XPOS;
1969           gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT_YPOS;
1970         }
1971
1972         gi = CreateGadget(GDI_CUSTOM_ID, id,
1973                           GDI_CUSTOM_TYPE_ID, i,
1974                           GDI_INFO_TEXT, "enter counter value",
1975                           GDI_X, xpos,
1976                           GDI_Y, ypos,
1977                           GDI_TYPE, GD_TYPE_TEXTINPUT_NUMERIC,
1978                           GDI_NUMBER_VALUE, 0,
1979                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
1980                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
1981                           GDI_TEXT_SIZE, 3,
1982                           GDI_TEXT_FONT, font_type,
1983                           GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
1984                           GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
1985                           GDI_BORDER_SIZE, ED_BORDER_SIZE,
1986                           GDI_TEXTINPUT_DESIGN_WIDTH, gd_width,
1987                           GDI_EVENT_MASK, event_mask,
1988                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1989                           GDI_CALLBACK_ACTION, HandleCounterButtons,
1990                           GDI_END);
1991
1992         if (gi == NULL)
1993           Error(ERR_EXIT, "cannot create gadget");
1994
1995         level_editor_gadget[id] = gi;
1996         xpos += gi->width + ED_GADGET_DISTANCE; /* xpos of up count button */
1997       }
1998     }
1999   }
2000 }
2001
2002 static void CreateDrawingAreas()
2003 {
2004   struct GadgetInfo *gi;
2005   unsigned long event_mask;
2006   int id;
2007   int i;
2008
2009   event_mask =
2010     GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
2011     GD_EVENT_OFF_BORDERS;
2012
2013   /* one for the level drawing area ... */
2014   id = GADGET_ID_DRAWING_LEVEL;
2015   gi = CreateGadget(GDI_CUSTOM_ID, id,
2016                     GDI_X, SX,
2017                     GDI_Y, SY,
2018                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2019                     GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
2020                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2021                     GDI_EVENT_MASK, event_mask,
2022                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2023                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2024                     GDI_END);
2025
2026   if (gi == NULL)
2027     Error(ERR_EXIT, "cannot create gadget");
2028
2029   level_editor_gadget[id] = gi;
2030
2031   /* ... up to eight areas for element content ... */
2032   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
2033   {
2034     int gx = SX + ED_AREA_ELEM_CONTENT_XPOS + 5 * (i % 4) * MINI_TILEX;
2035     int gy = SX + ED_AREA_ELEM_CONTENT_YPOS + 6 * (i / 4) * MINI_TILEY;
2036
2037     id = GADGET_ID_ELEM_CONTENT_0 + i;
2038     gi = CreateGadget(GDI_CUSTOM_ID, id,
2039                       GDI_CUSTOM_TYPE_ID, i,
2040                       GDI_X, gx,
2041                       GDI_Y, gy,
2042                       GDI_WIDTH, 3 * MINI_TILEX,
2043                       GDI_HEIGHT, 3 * MINI_TILEY,
2044                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
2045                       GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2046                       GDI_EVENT_MASK, event_mask,
2047                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2048                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
2049                       GDI_END);
2050
2051     if (gi == NULL)
2052       Error(ERR_EXIT, "cannot create gadget");
2053
2054     level_editor_gadget[id] = gi;
2055   }
2056
2057   /* ... one for the amoeba content */
2058   id = GADGET_ID_AMOEBA_CONTENT;
2059   gi = CreateGadget(GDI_CUSTOM_ID, id,
2060                     GDI_X, SX + ED_AREA_ELEM_CONTENT_XPOS,
2061                     GDI_Y, SY + ED_AREA_ELEM_CONTENT_YPOS,
2062                     GDI_WIDTH, MINI_TILEX,
2063                     GDI_HEIGHT, MINI_TILEY,
2064                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2065                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2066                     GDI_EVENT_MASK, event_mask,
2067                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2068                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2069                     GDI_END);
2070
2071   if (gi == NULL)
2072     Error(ERR_EXIT, "cannot create gadget");
2073
2074   level_editor_gadget[id] = gi;
2075
2076   /* ... and one for random placement background restrictions */
2077
2078   id = GADGET_ID_RANDOM_BACKGROUND;
2079   gi = CreateGadget(GDI_CUSTOM_ID, id,
2080                     GDI_X, SX + ED_AREA_RANDOM_BACKGROUND_XPOS,
2081                     GDI_Y, SY + ED_AREA_RANDOM_BACKGROUND_YPOS,
2082                     GDI_WIDTH, MINI_TILEX,
2083                     GDI_HEIGHT, MINI_TILEY,
2084                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2085                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2086                     GDI_EVENT_MASK, event_mask,
2087                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2088                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2089                     GDI_END);
2090
2091   if (gi == NULL)
2092     Error(ERR_EXIT, "cannot create gadget");
2093
2094   level_editor_gadget[id] = gi;
2095 }
2096
2097 static void CreateTextInputGadgets()
2098 {
2099   int i;
2100
2101   for (i=0; i<ED_NUM_TEXTINPUT; i++)
2102   {
2103     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2104     int gd_x, gd_y;
2105     struct GadgetInfo *gi;
2106     unsigned long event_mask;
2107     char infotext[1024];
2108     int id = textinput_info[i].gadget_id;
2109
2110     event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
2111
2112     gd_x = DOOR_GFX_PAGEX4 + ED_WIN_COUNT_XPOS;
2113     gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT_YPOS;
2114
2115     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
2116     infotext[MAX_INFOTEXT_LEN] = '\0';
2117
2118     gi = CreateGadget(GDI_CUSTOM_ID, id,
2119                       GDI_CUSTOM_TYPE_ID, i,
2120                       GDI_INFO_TEXT, infotext,
2121                       GDI_X, SX + textinput_info[i].x,
2122                       GDI_Y, SY + textinput_info[i].y,
2123                       GDI_TYPE, GD_TYPE_TEXTINPUT_ALPHANUMERIC,
2124                       GDI_TEXT_VALUE, textinput_info[i].value,
2125                       GDI_TEXT_SIZE, textinput_info[i].size,
2126                       GDI_TEXT_FONT, FC_YELLOW,
2127                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
2128                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
2129                       GDI_BORDER_SIZE, ED_BORDER_SIZE,
2130                       GDI_TEXTINPUT_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
2131                       GDI_EVENT_MASK, event_mask,
2132                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2133                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
2134                       GDI_END);
2135
2136     if (gi == NULL)
2137       Error(ERR_EXIT, "cannot create gadget");
2138
2139     level_editor_gadget[id] = gi;
2140   }
2141 }
2142
2143 static void CreateScrollbarGadgets()
2144 {
2145   int i;
2146
2147   for (i=0; i<ED_NUM_SCROLLBARS; i++)
2148   {
2149     int id = scrollbar_info[i].gadget_id;
2150     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2151     int gd_x1, gd_x2, gd_y1, gd_y2;
2152     struct GadgetInfo *gi;
2153     int items_max, items_visible, item_position;
2154     unsigned long event_mask;
2155
2156     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
2157     {
2158       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
2159       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
2160       item_position = 0;
2161     }
2162     else        /* drawing area scrollbars */
2163     {
2164       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
2165       {
2166         items_max = MAX(lev_fieldx + 2, ed_fieldx);
2167         items_visible = ed_fieldx;
2168         item_position = 0;
2169       }
2170       else
2171       {
2172         items_max = MAX(lev_fieldy + 2, ed_fieldy);
2173         items_visible = ed_fieldy;
2174         item_position = 0;
2175       }
2176     }
2177
2178     event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
2179
2180     gd_x1 = DOOR_GFX_PAGEX8 + scrollbar_info[i].xpos;
2181     gd_x2 = (gd_x1 - (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL ?
2182                       scrollbar_info[i].height : scrollbar_info[i].width));
2183     gd_y1 = DOOR_GFX_PAGEY1 + scrollbar_info[i].ypos;
2184     gd_y2 = DOOR_GFX_PAGEY1 + scrollbar_info[i].ypos;
2185
2186     gi = CreateGadget(GDI_CUSTOM_ID, id,
2187                       GDI_CUSTOM_TYPE_ID, i,
2188                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
2189                       GDI_X, scrollbar_info[i].x,
2190                       GDI_Y, scrollbar_info[i].y,
2191                       GDI_WIDTH, scrollbar_info[i].width,
2192                       GDI_HEIGHT, scrollbar_info[i].height,
2193                       GDI_TYPE, scrollbar_info[i].type,
2194                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
2195                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
2196                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
2197                       GDI_STATE, GD_BUTTON_UNPRESSED,
2198                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2199                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
2200                       GDI_BORDER_SIZE, ED_BORDER_SIZE,
2201                       GDI_EVENT_MASK, event_mask,
2202                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2203                       GDI_CALLBACK_ACTION, HandleControlButtons,
2204                       GDI_END);
2205
2206     if (gi == NULL)
2207       Error(ERR_EXIT, "cannot create gadget");
2208
2209     level_editor_gadget[id] = gi;
2210   }
2211 }
2212
2213 static void CreateCheckbuttonGadgets()
2214 {
2215   Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2216   struct GadgetInfo *gi;
2217   unsigned long event_mask;
2218   int gd_x1, gd_x2, gd_x3, gd_x4, gd_y;
2219   boolean checked;
2220   int i;
2221
2222   event_mask = GD_EVENT_PRESSED;
2223
2224   gd_x1 = DOOR_GFX_PAGEX4 + ED_CHECKBUTTON_UNCHECKED_XPOS;
2225   gd_x2 = DOOR_GFX_PAGEX3 + ED_CHECKBUTTON_UNCHECKED_XPOS;
2226   gd_x3 = DOOR_GFX_PAGEX4 + ED_CHECKBUTTON_CHECKED_XPOS;
2227   gd_x4 = DOOR_GFX_PAGEX3 + ED_CHECKBUTTON_CHECKED_XPOS;
2228   gd_y  = DOOR_GFX_PAGEY1 + ED_RADIOBUTTON_YPOS;
2229
2230   for (i=0; i<ED_NUM_RADIOBUTTONS; i++)
2231   {
2232     int id = radiobutton_info[i].gadget_id;
2233
2234     checked =
2235       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
2236
2237     gi = CreateGadget(GDI_CUSTOM_ID, id,
2238                       GDI_CUSTOM_TYPE_ID, i,
2239                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
2240                       GDI_X, SX + radiobutton_info[i].x,
2241                       GDI_Y, SY + radiobutton_info[i].y,
2242                       GDI_WIDTH, ED_CHECKBUTTON_XSIZE,
2243                       GDI_HEIGHT, ED_CHECKBUTTON_YSIZE,
2244                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
2245                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
2246                       GDI_CHECKED, checked,
2247                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2248                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2249                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x3, gd_y,
2250                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x4, gd_y,
2251                       GDI_EVENT_MASK, event_mask,
2252                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2253                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
2254                       GDI_END);
2255
2256     if (gi == NULL)
2257       Error(ERR_EXIT, "cannot create gadget");
2258
2259     level_editor_gadget[id] = gi;
2260   }
2261
2262   for (i=0; i<ED_NUM_CHECKBUTTONS; i++)
2263   {
2264     int id = checkbutton_info[i].gadget_id;
2265
2266     if (id == GADGET_ID_STICK_ELEMENT)
2267       gd_y  = DOOR_GFX_PAGEY1 + ED_STICKYBUTTON_YPOS;
2268     else
2269       gd_y  = DOOR_GFX_PAGEY1 + ED_CHECKBUTTON_YPOS;
2270
2271     gi = CreateGadget(GDI_CUSTOM_ID, id,
2272                       GDI_CUSTOM_TYPE_ID, i,
2273                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
2274                       GDI_X, SX + checkbutton_info[i].x,
2275                       GDI_Y, SY + checkbutton_info[i].y,
2276                       GDI_WIDTH, ED_CHECKBUTTON_XSIZE,
2277                       GDI_HEIGHT, ED_CHECKBUTTON_YSIZE,
2278                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
2279                       GDI_CHECKED, *checkbutton_info[i].value,
2280                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2281                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2282                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x3, gd_y,
2283                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x4, gd_y,
2284                       GDI_EVENT_MASK, event_mask,
2285                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2286                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
2287                       GDI_END);
2288
2289     if (gi == NULL)
2290       Error(ERR_EXIT, "cannot create gadget");
2291
2292     level_editor_gadget[id] = gi;
2293   }
2294 }
2295
2296 void CreateLevelEditorGadgets()
2297 {
2298   ReinitializeElementList();
2299
2300   CreateControlButtons();
2301   CreateCounterButtons();
2302   CreateDrawingAreas();
2303   CreateTextInputGadgets();
2304   CreateScrollbarGadgets();
2305   CreateCheckbuttonGadgets();
2306 }
2307
2308 void FreeLevelEditorGadgets()
2309 {
2310   int i;
2311
2312   for (i=0; i<NUM_EDITOR_GADGETS; i++)
2313     FreeGadget(level_editor_gadget[i]);
2314 }
2315
2316 static void MapCounterButtons(int id)
2317 {
2318   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_down]);
2319   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_text]);
2320   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_up]);
2321 }
2322
2323 static void MapControlButtons()
2324 {
2325   int counter_id;
2326   int i;
2327
2328   /* map toolbox buttons */
2329   for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
2330     MapGadget(level_editor_gadget[i]);
2331
2332   /* map buttons to select elements */
2333   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
2334     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
2335   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
2336   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
2337   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
2338
2339   /* map buttons to select level */
2340   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
2341   ModifyEditorCounterLimits(counter_id,
2342                             leveldir_current->first_level,
2343                             leveldir_current->last_level);
2344   ModifyEditorCounter(counter_id, *counterbutton_info[counter_id].value);
2345   MapCounterButtons(counter_id);
2346 }
2347
2348 static void MapDrawingArea(int id)
2349 {
2350   MapGadget(level_editor_gadget[id]);
2351 }
2352
2353 static void MapTextInputGadget(int id)
2354 {
2355   MapGadget(level_editor_gadget[textinput_info[id].gadget_id]);
2356 }
2357
2358 static void MapRadiobuttonGadget(int id)
2359 {
2360   MapGadget(level_editor_gadget[radiobutton_info[id].gadget_id]);
2361 }
2362
2363 static void MapCheckbuttonGadget(int id)
2364 {
2365   MapGadget(level_editor_gadget[checkbutton_info[id].gadget_id]);
2366 }
2367
2368 static void MapMainDrawingArea()
2369 {
2370   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
2371   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
2372   int i;
2373
2374   for (i=ED_SCROLLBUTTON_ID_AREA_FIRST; i<=ED_SCROLLBUTTON_ID_AREA_LAST; i++)
2375   {
2376     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
2377           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
2378          no_horizontal_scrollbar) ||
2379         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
2380           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
2381          no_vertical_scrollbar))
2382       continue;
2383
2384     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
2385   }
2386
2387   for (i=ED_SCROLLBAR_ID_AREA_FIRST; i<=ED_SCROLLBAR_ID_AREA_LAST; i++)
2388   {
2389     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
2390         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
2391       continue;
2392
2393     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
2394   }
2395
2396   MapDrawingArea(GADGET_ID_DRAWING_LEVEL);
2397 }
2398
2399 static void UnmapDrawingArea(int id)
2400 {
2401   UnmapGadget(level_editor_gadget[id]);
2402 }
2403
2404 void UnmapLevelEditorWindowGadgets()
2405 {
2406   int i;
2407
2408   for (i=0; i<NUM_EDITOR_GADGETS; i++)
2409     if (level_editor_gadget[i]->x < SX + SXSIZE)
2410       UnmapGadget(level_editor_gadget[i]);
2411 }
2412
2413 void UnmapLevelEditorGadgets()
2414 {
2415   int i;
2416
2417   for (i=0; i<NUM_EDITOR_GADGETS; i++)
2418     UnmapGadget(level_editor_gadget[i]);
2419 }
2420
2421 static void ResetUndoBuffer()
2422 {
2423   undo_buffer_position = -1;
2424   undo_buffer_steps = -1;
2425   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
2426 }
2427
2428 static void DrawEditModeWindow()
2429 {
2430   if (edit_mode == ED_MODE_INFO)
2431     DrawLevelInfoWindow();
2432   else if (edit_mode == ED_MODE_PROPERTIES)
2433     DrawPropertiesWindow();
2434   else  /* edit_mode == ED_MODE_DRAWING */
2435     DrawDrawingWindow();
2436 }
2437
2438 static boolean LevelChanged()
2439 {
2440   boolean level_changed = FALSE;
2441   int x, y;
2442
2443   for(y=0; y<lev_fieldy; y++)
2444     for(x=0; x<lev_fieldx; x++)
2445       if (Feld[x][y] != Ur[x][y])
2446         level_changed = TRUE;
2447
2448   return level_changed;
2449 }
2450
2451 static boolean LevelContainsPlayer()
2452 {
2453   boolean player_found = FALSE;
2454   int x, y;
2455
2456   for(y=0; y<lev_fieldy; y++)
2457     for(x=0; x<lev_fieldx; x++)
2458       if (Feld[x][y] == EL_PLAYER1 ||
2459           Feld[x][y] == EL_SP_MURPHY)
2460         player_found = TRUE;
2461
2462   return player_found;
2463 }
2464
2465 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
2466                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
2467 {
2468   int x, y;
2469
2470   for(x=0; x<lev_fieldx; x++)
2471     for(y=0; y<lev_fieldy; y++)
2472       dst[x][y] = src[x][y];
2473 }
2474
2475 static void CopyCustomElementPropertiesToEditor()
2476 {
2477   int i;
2478
2479   for (i=0; i < NUM_CUSTOM_ELEMENTS; i++)
2480   {
2481     int element = EL_CUSTOM_START + i;
2482     int properties = Properties1[element];
2483
2484     custom_element_properties[i].indestructible =
2485       ((properties & EP_BIT_MASSIVE) != 0 ? TRUE : FALSE);
2486
2487     custom_element_properties[i].can_fall =
2488       ((properties & EP_BIT_CAN_FALL) != 0 ? TRUE : FALSE);
2489
2490     custom_element_properties[i].can_smash =
2491       ((properties & EP_BIT_CAN_SMASH) != 0 ? TRUE : FALSE);
2492
2493     custom_element_properties[i].slippery =
2494       ((properties & EP_BIT_SLIPPERY) != 0 ? TRUE : FALSE);
2495   }
2496 }
2497
2498 static void CopyCustomElementPropertiesToGame()
2499 {
2500   int i;
2501
2502   for (i=0; i < NUM_CUSTOM_ELEMENTS; i++)
2503   {
2504     int element = EL_CUSTOM_START + i;
2505
2506     Properties1[element] = EP_BITMASK_DEFAULT;
2507
2508     if (custom_element_properties[i].indestructible)
2509       Properties1[element] |= EP_BIT_MASSIVE;
2510     else
2511       Properties1[element] &= ~EP_BIT_MASSIVE;
2512
2513     if (custom_element_properties[i].can_fall)
2514       Properties1[element] |= EP_BIT_CAN_FALL;
2515     else
2516       Properties1[element] &= ~EP_BIT_CAN_FALL;
2517
2518     if (custom_element_properties[i].can_smash)
2519       Properties1[element] |= EP_BIT_CAN_SMASH;
2520     else
2521       Properties1[element] &= ~EP_BIT_CAN_SMASH;
2522
2523     if (custom_element_properties[i].slippery)
2524       Properties1[element] |= EP_BIT_SLIPPERY;
2525     else
2526       Properties1[element] &= ~EP_BIT_SLIPPERY;
2527   }
2528 }
2529
2530 void DrawLevelEd()
2531 {
2532   CloseDoor(DOOR_CLOSE_ALL);
2533   OpenDoor(DOOR_OPEN_2 | DOOR_NO_DELAY);
2534
2535   if (level_editor_test_game)
2536   {
2537     CopyPlayfield(Ur, Feld);
2538     CopyPlayfield(FieldBackup, Ur);
2539
2540     level_editor_test_game = FALSE;
2541   }
2542   else
2543   {
2544     edit_mode = ED_MODE_DRAWING;
2545
2546     ResetUndoBuffer();
2547     level_xpos = -1;
2548     level_ypos = -1;
2549   }
2550
2551   /* copy default editor door content to main double buffer */
2552   BlitBitmap(graphic_info[IMG_GLOBAL_DOOR].bitmap, drawto,
2553              DOOR_GFX_PAGEX6, DOOR_GFX_PAGEY1, DXSIZE, DYSIZE, DX, DY);
2554
2555   /* draw mouse button brush elements */
2556   DrawMiniGraphicExt(drawto,
2557                      DX + ED_WIN_MB_LEFT_XPOS, DY + ED_WIN_MB_LEFT_YPOS,
2558                      el2edimg(new_element1));
2559   DrawMiniGraphicExt(drawto,
2560                      DX + ED_WIN_MB_MIDDLE_XPOS, DY + ED_WIN_MB_MIDDLE_YPOS,
2561                      el2edimg(new_element2));
2562   DrawMiniGraphicExt(drawto,
2563                      DX + ED_WIN_MB_RIGHT_XPOS, DY + ED_WIN_MB_RIGHT_YPOS,
2564                      el2edimg(new_element3));
2565
2566   /* draw bigger door */
2567   DrawSpecialEditorDoor();
2568
2569   /* draw new control window */
2570   BlitBitmap(graphic_info[IMG_GLOBAL_DOOR].bitmap, drawto,
2571              DOOR_GFX_PAGEX8, 236, EXSIZE, EYSIZE, EX, EY);
2572
2573   redraw_mask |= REDRAW_ALL;
2574
2575   ReinitializeElementListButtons();     /* only needed after setup changes */
2576
2577   UnmapTapeButtons();
2578   MapControlButtons();
2579
2580   /* copy actual editor door content to door double buffer for OpenDoor() */
2581   BlitBitmap(drawto, bitmap_db_door,
2582              DX, DY, DXSIZE, DYSIZE, DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
2583
2584   DrawEditModeWindow();
2585
2586   /*
2587   FadeToFront();
2588   */
2589
2590
2591   OpenDoor(DOOR_OPEN_1);
2592
2593   /*
2594   OpenDoor(DOOR_OPEN_1 | DOOR_OPEN_2);
2595   */
2596 }
2597
2598 static void AdjustDrawingAreaGadgets()
2599 {
2600   int ed_xsize = lev_fieldx + 2;
2601   int ed_ysize = lev_fieldy + 2;
2602   int max_ed_fieldx = MAX_ED_FIELDX;
2603   int max_ed_fieldy = MAX_ED_FIELDY;
2604   boolean horizontal_scrollbar_needed;
2605   boolean vertical_scrollbar_needed;
2606   int x, y, width, height;
2607   int xoffset, yoffset;
2608
2609   /* check if we need any scrollbars */
2610   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
2611   vertical_scrollbar_needed = (ed_ysize > max_ed_fieldy);
2612
2613   /* check if we have a smaller editor field because of scrollbars */
2614   if (horizontal_scrollbar_needed)
2615     max_ed_fieldy = MAX_ED_FIELDY - 1;
2616   if (vertical_scrollbar_needed)
2617     max_ed_fieldx = MAX_ED_FIELDX - 1;
2618
2619   /* check again if we now need more scrollbars because of less space */
2620   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
2621   vertical_scrollbar_needed = (ed_ysize > max_ed_fieldy);
2622
2623   /* check if editor field gets even smaller after adding new scrollbars */
2624   if (horizontal_scrollbar_needed)
2625     max_ed_fieldy = MAX_ED_FIELDY - 1;
2626   if (vertical_scrollbar_needed)
2627     max_ed_fieldx = MAX_ED_FIELDX - 1;
2628
2629   ed_fieldx = (ed_xsize < MAX_ED_FIELDX ? ed_xsize : max_ed_fieldx);
2630   ed_fieldy = (ed_ysize < MAX_ED_FIELDY ? ed_ysize : max_ed_fieldy);
2631
2632   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
2633                GDI_WIDTH, ed_fieldx * MINI_TILEX,
2634                GDI_HEIGHT, ed_fieldy * MINI_TILEY,
2635                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
2636                GDI_END);
2637
2638   xoffset = (ed_fieldx == MAX_ED_FIELDX ? ED_SCROLLBUTTON_XSIZE : 0);
2639   yoffset = (ed_fieldy == MAX_ED_FIELDY ? ED_SCROLLBUTTON_YSIZE : 0);
2640
2641   x = SX + scrollbutton_info[ED_SCROLLBUTTON_ID_AREA_RIGHT].x + xoffset;
2642   y = SX + scrollbutton_info[ED_SCROLLBUTTON_ID_AREA_DOWN].y + yoffset;
2643
2644   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT], GDI_X, x, GDI_END);
2645   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN], GDI_Y, y, GDI_END);
2646
2647   width = scrollbar_info[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width + xoffset;
2648   height = scrollbar_info[ED_SCROLLBAR_ID_AREA_VERTICAL].height + yoffset;
2649
2650   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
2651                GDI_WIDTH, width,
2652                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
2653                GDI_END);
2654   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
2655                GDI_HEIGHT, height,
2656                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
2657                GDI_END);
2658 }
2659
2660 static void AdjustLevelScrollPosition()
2661 {
2662   if (level_xpos < -1)
2663     level_xpos = -1;
2664   if (level_xpos > lev_fieldx - ed_fieldx + 1)
2665     level_xpos = lev_fieldx - ed_fieldx + 1;
2666   if (lev_fieldx < ed_fieldx - 2)
2667     level_xpos = -1;
2668
2669   if (level_ypos < -1)
2670     level_ypos = -1;
2671   if (level_ypos > lev_fieldy - ed_fieldy + 1)
2672     level_ypos = lev_fieldy - ed_fieldy + 1;
2673   if (lev_fieldy < ed_fieldy - 2)
2674     level_ypos = -1;
2675 }
2676
2677 static void AdjustEditorScrollbar(int id)
2678 {
2679   struct GadgetInfo *gi = level_editor_gadget[id];
2680   int items_max, items_visible, item_position;
2681
2682   if (id == GADGET_ID_SCROLL_HORIZONTAL)
2683   {
2684     items_max = MAX(lev_fieldx + 2, ed_fieldx);
2685     items_visible = ed_fieldx;
2686     item_position = level_xpos + 1;
2687   }
2688   else
2689   {
2690     items_max = MAX(lev_fieldy + 2, ed_fieldy);
2691     items_visible = ed_fieldy;
2692     item_position = level_ypos + 1;
2693   }
2694
2695   if (item_position > items_max - items_visible)
2696     item_position = items_max - items_visible;
2697
2698   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
2699                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
2700 }
2701
2702 static void ModifyEditorTextInput(int textinput_id, char *new_text)
2703 {
2704   int gadget_id = textinput_info[textinput_id].gadget_id;
2705   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
2706
2707   ModifyGadget(gi, GDI_TEXT_VALUE, new_text, GDI_END);
2708 }
2709
2710 static void ModifyEditorCounter(int counter_id, int new_value)
2711 {
2712   int *counter_value = counterbutton_info[counter_id].value;
2713   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
2714   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
2715
2716   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
2717
2718   if (counter_value != NULL)
2719     *counter_value = gi->text.number_value;
2720 }
2721
2722 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
2723 {
2724   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
2725   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
2726
2727   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
2728 }
2729
2730 static void PickDrawingElement(int button, int element)
2731 {
2732   if (button < 1 || button > 3)
2733     return;
2734
2735   if (button == 1)
2736   {
2737     new_element1 = element;
2738     DrawMiniGraphicExt(drawto,
2739                        DX + ED_WIN_MB_LEFT_XPOS, DY + ED_WIN_MB_LEFT_YPOS,
2740                        el2edimg(new_element1));
2741   }
2742   else if (button == 2)
2743   {
2744     new_element2 = element;
2745     DrawMiniGraphicExt(drawto,
2746                        DX + ED_WIN_MB_MIDDLE_XPOS, DY + ED_WIN_MB_MIDDLE_YPOS,
2747                        el2edimg(new_element2));
2748   }
2749   else
2750   {
2751     new_element3 = element;
2752     DrawMiniGraphicExt(drawto,
2753                        DX + ED_WIN_MB_RIGHT_XPOS, DY + ED_WIN_MB_RIGHT_YPOS,
2754                        el2edimg(new_element3));
2755   }
2756
2757   redraw_mask |= REDRAW_DOOR_1;
2758 }
2759
2760 static void DrawDrawingWindow()
2761 {
2762   SetMainBackgroundImage(IMG_UNDEFINED);
2763   ClearWindow();
2764   UnmapLevelEditorWindowGadgets();
2765
2766   AdjustDrawingAreaGadgets();
2767   AdjustLevelScrollPosition();
2768   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
2769   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
2770
2771   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
2772   MapMainDrawingArea();
2773 }
2774
2775 static void DrawElementBorder(int dest_x, int dest_y, int width, int height)
2776 {
2777   int border_graphic = IMG_SAND;
2778   Bitmap *src_bitmap;
2779   int src_x, src_y;
2780   int num_mini_tilex = width / MINI_TILEX + 1;
2781   int num_mini_tiley = width / MINI_TILEY + 1;
2782   int x, y;
2783
2784   getMiniGraphicSource(border_graphic, &src_bitmap, &src_x, &src_y);
2785
2786   for (y=0; y < num_mini_tiley; y++)
2787     for (x=0; x < num_mini_tilex; x++)
2788       BlitBitmap(src_bitmap, drawto, src_x, src_y, MINI_TILEX, MINI_TILEY,
2789                  dest_x - MINI_TILEX / 2 + x * MINI_TILEX,
2790                  dest_y - MINI_TILEY / 2 + y * MINI_TILEY);
2791
2792   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
2793 }
2794
2795 static void DrawRandomPlacementBackgroundArea()
2796 {
2797   int area_x = ED_AREA_RANDOM_BACKGROUND_XPOS / MINI_TILEX;
2798   int area_y = ED_AREA_RANDOM_BACKGROUND_YPOS / MINI_TILEY;
2799   int area_sx = SX + ED_AREA_RANDOM_BACKGROUND_XPOS;
2800   int area_sy = SY + ED_AREA_RANDOM_BACKGROUND_YPOS;
2801
2802   ElementContent[0][0][0] = random_placement_background_element;
2803
2804   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY);
2805   DrawMiniElement(area_x, area_y, ElementContent[0][0][0]);
2806
2807   MapDrawingArea(GADGET_ID_RANDOM_BACKGROUND);
2808 }
2809
2810 static void DrawLevelInfoWindow()
2811 {
2812   char infotext[1024];
2813   int xoffset_above = 0;
2814   int yoffset_above = -(MINI_TILEX + ED_GADGET_DISTANCE);
2815   int xoffset_right = counter_xsize;
2816   int yoffset_right = ED_BORDER_SIZE;
2817   int xoffset_right2 = ED_CHECKBUTTON_XSIZE + 2 * ED_GADGET_DISTANCE;
2818   int yoffset_right2 = ED_BORDER_SIZE;
2819   int font_color = FC_GREEN;
2820   int i, x, y;
2821
2822   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR_SETTINGS_LEVEL);
2823   ClearWindow();
2824   UnmapLevelEditorWindowGadgets();
2825
2826   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS_YPOS,
2827            "Level Settings", FS_BIG, FC_YELLOW);
2828   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS2_YPOS,
2829            "Editor Settings", FS_BIG, FC_YELLOW);
2830
2831   /* draw counter gadgets */
2832   for (i=ED_COUNTER_ID_LEVEL_FIRST; i<=ED_COUNTER_ID_LEVEL_LAST; i++)
2833   {
2834     if (counterbutton_info[i].infotext_above)
2835     {
2836       x = counterbutton_info[i].x + xoffset_above;
2837       y = counterbutton_info[i].y + yoffset_above;
2838
2839       sprintf(infotext, "%s:", counterbutton_info[i].infotext_above);
2840       infotext[MAX_INFOTEXT_LEN] = '\0';
2841       DrawTextF(x, y, font_color, infotext);
2842     }
2843
2844     if (counterbutton_info[i].infotext_right)
2845     {
2846       x = counterbutton_info[i].x + xoffset_right;
2847       y = counterbutton_info[i].y + yoffset_right;
2848
2849       sprintf(infotext, "%s", counterbutton_info[i].infotext_right);
2850       infotext[MAX_INFOTEXT_LEN] = '\0';
2851       DrawTextF(x, y, font_color, infotext);
2852     }
2853
2854     ModifyEditorCounter(i, *counterbutton_info[i].value);
2855     MapCounterButtons(i);
2856   }
2857
2858   /* draw text input gadgets */
2859   for (i=ED_TEXTINPUT_ID_LEVEL_FIRST; i<=ED_TEXTINPUT_ID_LEVEL_LAST; i++)
2860   {
2861     x = textinput_info[i].x + xoffset_above;
2862     y = textinput_info[i].y + yoffset_above;
2863
2864     sprintf(infotext, "%s:", textinput_info[i].infotext);
2865     infotext[MAX_INFOTEXT_LEN] = '\0';
2866
2867     DrawTextF(x, y, font_color, infotext);
2868     ModifyEditorTextInput(i, textinput_info[i].value);
2869     MapTextInputGadget(i);
2870   }
2871
2872   /* draw radiobutton gadgets */
2873   for (i=ED_RADIOBUTTON_ID_LEVEL_FIRST; i<=ED_RADIOBUTTON_ID_LEVEL_LAST; i++)
2874   {
2875     boolean checked =
2876       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
2877
2878     x = radiobutton_info[i].x + xoffset_right2;
2879     y = radiobutton_info[i].y + yoffset_right2;
2880
2881     DrawTextF(x, y, font_color, radiobutton_info[i].text);
2882     ModifyGadget(level_editor_gadget[radiobutton_info[i].gadget_id],
2883                  GDI_CHECKED, checked, GDI_END);
2884     MapRadiobuttonGadget(i);
2885   }
2886
2887   /* draw checkbutton gadgets */
2888   for (i=ED_CHECKBUTTON_ID_LEVEL_FIRST; i<=ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
2889   {
2890     x = checkbutton_info[i].x + xoffset_right2;
2891     y = checkbutton_info[i].y + yoffset_right2;
2892
2893     DrawTextF(x, y, font_color, checkbutton_info[i].text);
2894     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
2895                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
2896     MapCheckbuttonGadget(i);
2897   }
2898
2899   /* draw drawing area */
2900   DrawRandomPlacementBackgroundArea();
2901 }
2902
2903 static void DrawAmoebaContentArea()
2904 {
2905   int area_x = ED_AREA_ELEM_CONTENT_XPOS / MINI_TILEX;
2906   int area_y = ED_AREA_ELEM_CONTENT_YPOS / MINI_TILEY;
2907   int area_sx = SX + ED_AREA_ELEM_CONTENT_XPOS;
2908   int area_sy = SY + ED_AREA_ELEM_CONTENT_YPOS;
2909   int font_color = FC_GREEN;
2910
2911   ElementContent[0][0][0] = level.amoeba_content;
2912
2913   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY);
2914   DrawMiniElement(area_x, area_y, ElementContent[0][0][0]);
2915
2916   DrawText(area_sx + TILEX, area_sy + 1, "Content of amoeba",
2917            FS_SMALL, font_color);
2918
2919   MapDrawingArea(GADGET_ID_AMOEBA_CONTENT);
2920 }
2921
2922 static void DrawElementContentAreas()
2923 {
2924   int counter_id = ED_COUNTER_ID_ELEM_CONTENT;
2925   int area_x = ED_AREA_ELEM_CONTENT_XPOS / MINI_TILEX;
2926   int area_y = ED_AREA_ELEM_CONTENT_YPOS / MINI_TILEY;
2927   int area_sx = SX + ED_AREA_ELEM_CONTENT_XPOS;
2928   int area_sy = SY + ED_AREA_ELEM_CONTENT_YPOS;
2929   int xoffset_right = counter_xsize;
2930   int yoffset_right = ED_BORDER_SIZE;
2931   int font_color = FC_GREEN;
2932   int i, x, y;
2933
2934   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
2935     for (y=0; y<3; y++)
2936       for (x=0; x<3; x++)
2937         ElementContent[i][x][y] = level.yam_content[i][x][y];
2938
2939   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
2940     UnmapDrawingArea(GADGET_ID_ELEM_CONTENT_0 + i);
2941
2942   /* display counter to choose number of element content areas */
2943   x = counterbutton_info[counter_id].x + xoffset_right;
2944   y = counterbutton_info[counter_id].y + yoffset_right;
2945   DrawTextF(x, y, font_color, "number of content areas");
2946
2947   ModifyEditorCounter(counter_id, *counterbutton_info[counter_id].value);
2948   MapCounterButtons(counter_id);
2949
2950   /* delete content areas in case of reducing number of them */
2951   DrawBackground(SX, area_sy - MINI_TILEX, SXSIZE, 12 * MINI_TILEY);
2952
2953   for (i=0; i<level.num_yam_contents; i++)
2954     DrawElementBorder(area_sx + 5 * (i % 4) * MINI_TILEX,
2955                       area_sy + 6 * (i / 4) * MINI_TILEY,
2956                       3 * MINI_TILEX, 3 * MINI_TILEY);
2957
2958   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 0 * MINI_TILEY + 1,
2959            "Content", FS_SMALL, font_color);
2960   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 1 * MINI_TILEY + 1,
2961            "when", FS_SMALL, font_color);
2962   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 2 * MINI_TILEY + 1,
2963            "smashed", FS_SMALL, font_color);
2964
2965   for (i=0; i<level.num_yam_contents; i++)
2966   {
2967     for (y=0; y<3; y++)
2968       for (x=0; x<3; x++)
2969         DrawMiniElement(area_x + 5 * (i % 4) + x, area_y + 6 * (i / 4) + y,
2970                         ElementContent[i][x][y]);
2971
2972     DrawTextF(area_sx - SX + 5 * (i % 4) * MINI_TILEX + MINI_TILEX + 1,
2973               area_sy - SY + 6 * (i / 4) * MINI_TILEY + 4 * MINI_TILEY - 4,
2974               font_color, "%d", i + 1);
2975   }
2976
2977   for (i=0; i<level.num_yam_contents; i++)
2978     MapDrawingArea(GADGET_ID_ELEM_CONTENT_0 + i);
2979 }
2980
2981 #define TEXT_COLLECTING         "Score for collecting"
2982 #define TEXT_SMASHING           "Score for smashing"
2983 #define TEXT_CRACKING           "Score for cracking"
2984 #define TEXT_SPEED              "Speed of amoeba growth"
2985 #define TEXT_DURATION           "Duration when activated"
2986
2987 static void DrawPropertiesWindow()
2988 {
2989   int counter_id = ED_COUNTER_ID_ELEM_SCORE;
2990   int num_elements_in_level;
2991   float percentage;
2992   int xoffset_right = counter_xsize;
2993   int yoffset_right = ED_BORDER_SIZE;
2994   int xoffset_right2 = ED_CHECKBUTTON_XSIZE + 2 * ED_GADGET_DISTANCE;
2995   int yoffset_right2 = ED_BORDER_SIZE;
2996   int xstart = 2;
2997   int ystart = 4;
2998   int font_color = FC_GREEN;
2999   int i, x, y;
3000   static struct
3001   {
3002     int element;
3003     int *value;
3004     char *text;
3005   } elements_with_counter[] =
3006   {
3007     { EL_EMERALD,       &level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3008     { EL_BD_DIAMOND,    &level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3009     { EL_EMERALD_YELLOW,&level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3010     { EL_EMERALD_RED,   &level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3011     { EL_EMERALD_PURPLE,&level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3012     { EL_DIAMOND,       &level.score[SC_DIAMANT],       TEXT_COLLECTING },
3013     { EL_BUG_RIGHT,     &level.score[SC_KAEFER],        TEXT_SMASHING },
3014     { EL_BUG_UP,        &level.score[SC_KAEFER],        TEXT_SMASHING },
3015     { EL_BUG_LEFT,      &level.score[SC_KAEFER],        TEXT_SMASHING },
3016     { EL_BUG_DOWN,      &level.score[SC_KAEFER],        TEXT_SMASHING },
3017     { EL_BD_BUTTERFLY_RIGHT,&level.score[SC_KAEFER],    TEXT_SMASHING },
3018     { EL_BD_BUTTERFLY_UP,   &level.score[SC_KAEFER],    TEXT_SMASHING },
3019     { EL_BD_BUTTERFLY_LEFT, &level.score[SC_KAEFER],    TEXT_SMASHING },
3020     { EL_BD_BUTTERFLY_DOWN, &level.score[SC_KAEFER],    TEXT_SMASHING },
3021     { EL_SPACESHIP_RIGHT,&level.score[SC_FLIEGER],      TEXT_SMASHING },
3022     { EL_SPACESHIP_UP,   &level.score[SC_FLIEGER],      TEXT_SMASHING },
3023     { EL_SPACESHIP_LEFT, &level.score[SC_FLIEGER],      TEXT_SMASHING },
3024     { EL_SPACESHIP_DOWN, &level.score[SC_FLIEGER],      TEXT_SMASHING },
3025     { EL_BD_FIREFLY_RIGHT,&level.score[SC_FLIEGER],     TEXT_SMASHING },
3026     { EL_BD_FIREFLY_UP,   &level.score[SC_FLIEGER],     TEXT_SMASHING },
3027     { EL_BD_FIREFLY_LEFT, &level.score[SC_FLIEGER],     TEXT_SMASHING },
3028     { EL_BD_FIREFLY_DOWN, &level.score[SC_FLIEGER],     TEXT_SMASHING },
3029     { EL_YAMYAM,        &level.score[SC_MAMPFER],       TEXT_SMASHING },
3030     { EL_DARK_YAMYAM,   &level.score[SC_MAMPFER],       TEXT_SMASHING },
3031     { EL_ROBOT,         &level.score[SC_ROBOT],         TEXT_SMASHING },
3032     { EL_PACMAN_RIGHT,  &level.score[SC_PACMAN],        TEXT_SMASHING },
3033     { EL_PACMAN_UP,     &level.score[SC_PACMAN],        TEXT_SMASHING },
3034     { EL_PACMAN_LEFT,   &level.score[SC_PACMAN],        TEXT_SMASHING },
3035     { EL_PACMAN_DOWN,   &level.score[SC_PACMAN],        TEXT_SMASHING },
3036     { EL_NUT,           &level.score[SC_KOKOSNUSS],     TEXT_CRACKING },
3037     { EL_DYNAMITE,      &level.score[SC_DYNAMIT],       TEXT_COLLECTING },
3038     { EL_KEY1,          &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3039     { EL_KEY2,          &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3040     { EL_KEY3,          &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3041     { EL_KEY4,          &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3042     { EL_EM_KEY1_FILE,  &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3043     { EL_EM_KEY2_FILE,  &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3044     { EL_EM_KEY3_FILE,  &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3045     { EL_EM_KEY4_FILE,  &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3046     { EL_AMOEBA_WET,    &level.amoeba_speed,            TEXT_SPEED },
3047     { EL_AMOEBA_DRY,    &level.amoeba_speed,            TEXT_SPEED },
3048     { EL_AMOEBA_FULL,   &level.amoeba_speed,            TEXT_SPEED },
3049     { EL_BD_AMOEBA,     &level.amoeba_speed,            TEXT_SPEED },
3050     { EL_MAGIC_WALL,    &level.time_magic_wall,         TEXT_DURATION },
3051     { EL_ROBOT_WHEEL,   &level.time_wheel,              TEXT_DURATION },
3052     { -1, NULL, NULL }
3053   };
3054
3055   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR_SETTINGS_ELEMENT);
3056   ClearWindow();
3057   UnmapLevelEditorWindowGadgets();
3058
3059   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS_YPOS,
3060            "Element Settings", FS_BIG, FC_YELLOW);
3061
3062   DrawElementBorder(SX + xstart * MINI_TILEX,
3063                     SY + ystart * MINI_TILEY + MINI_TILEY / 2,
3064                     TILEX, TILEY);
3065   DrawGraphicAnimationExt(drawto,
3066                           SX + xstart * MINI_TILEX,
3067                           SY + ystart * MINI_TILEY + MINI_TILEY / 2,
3068                           el2edimg(properties_element), -1, NO_MASKING);
3069
3070   FrameCounter = 0;     /* restart animation frame counter */
3071
3072   DrawTextF((xstart + 3) * MINI_TILEX, (ystart + 1) * MINI_TILEY,
3073             font_color, getElementInfoText(properties_element));
3074
3075   num_elements_in_level = 0;
3076   for (y=0; y<lev_fieldy; y++)
3077     for (x=0; x<lev_fieldx; x++)
3078       if (Feld[x][y] == properties_element)
3079         num_elements_in_level++;
3080   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
3081
3082   DrawTextF(ED_SETTINGS_XPOS, 5 * TILEY, font_color, "In this level:");
3083   DrawTextF(ED_SETTINGS_XPOS + 15 * FONT2_XSIZE, 5 * TILEY, FC_YELLOW,
3084             "%d (%.2f%%)", num_elements_in_level, percentage);
3085
3086   /* check if there are elements where a score can be chosen for */
3087   for (i=0; elements_with_counter[i].element != -1; i++)
3088   {
3089     if (elements_with_counter[i].element == properties_element)
3090     {
3091       int x = counterbutton_info[counter_id].x + xoffset_right;
3092       int y = counterbutton_info[counter_id].y + yoffset_right;
3093
3094       counterbutton_info[counter_id].value = elements_with_counter[i].value;
3095       DrawTextF(x, y, font_color, elements_with_counter[i].text);
3096
3097       ModifyEditorCounter(counter_id,  *counterbutton_info[counter_id].value);
3098       MapCounterButtons(counter_id);
3099       break;
3100     }
3101   }
3102
3103   if (HAS_CONTENT(properties_element))
3104   {
3105     /* draw stickybutton gadget */
3106     i = ED_CHECKBUTTON_ID_STICK_ELEMENT;
3107     x = checkbutton_info[i].x + xoffset_right2;
3108     y = checkbutton_info[i].y + yoffset_right2;
3109
3110     DrawTextF(x, y, font_color, checkbutton_info[i].text);
3111     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3112                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3113     MapCheckbuttonGadget(i);
3114
3115     if (IS_AMOEBOID(properties_element))
3116       DrawAmoebaContentArea();
3117     else
3118       DrawElementContentAreas();
3119   }
3120
3121   if (IS_GEM(properties_element))
3122   {
3123     /* draw checkbutton gadget */
3124     i = ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS;
3125     x = checkbutton_info[i].x + xoffset_right2;
3126     y = checkbutton_info[i].y + yoffset_right2;
3127
3128     DrawTextF(x, y, font_color, checkbutton_info[i].text);
3129     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3130                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3131     MapCheckbuttonGadget(i);
3132   }
3133
3134   if (IS_CUSTOM_ELEMENT(properties_element))
3135   {
3136     int nr = properties_element - EL_CUSTOM_START;
3137
3138     CopyCustomElementPropertiesToEditor();
3139
3140     /* draw checkbutton gadget */
3141     i = ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE;
3142     x = checkbutton_info[i].x + xoffset_right2;
3143     y = checkbutton_info[i].y + yoffset_right2;
3144
3145     checkbutton_info[i].value = &custom_element_properties[nr].indestructible;
3146
3147     DrawTextF(x, y, font_color, checkbutton_info[i].text);
3148     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3149                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3150     MapCheckbuttonGadget(i);
3151
3152     /* draw checkbutton gadget */
3153     i = ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL;
3154     x = checkbutton_info[i].x + xoffset_right2;
3155     y = checkbutton_info[i].y + yoffset_right2;
3156
3157     checkbutton_info[i].value = &custom_element_properties[nr].can_fall;
3158
3159     DrawTextF(x, y, font_color, checkbutton_info[i].text);
3160     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3161                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3162     MapCheckbuttonGadget(i);
3163
3164     /* draw checkbutton gadget */
3165     i = ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH;
3166     x = checkbutton_info[i].x + xoffset_right2;
3167     y = checkbutton_info[i].y + yoffset_right2;
3168
3169     checkbutton_info[i].value = &custom_element_properties[nr].can_smash;
3170
3171     DrawTextF(x, y, font_color, checkbutton_info[i].text);
3172     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3173                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3174     MapCheckbuttonGadget(i);
3175
3176     /* draw checkbutton gadget */
3177     i = ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY;
3178     x = checkbutton_info[i].x + xoffset_right2;
3179     y = checkbutton_info[i].y + yoffset_right2;
3180
3181     checkbutton_info[i].value = &custom_element_properties[nr].slippery;
3182
3183     DrawTextF(x, y, font_color, checkbutton_info[i].text);
3184     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3185                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3186     MapCheckbuttonGadget(i);
3187   }
3188 }
3189
3190 static void DrawLineElement(int sx, int sy, int element, boolean change_level)
3191 {
3192   int lx = sx + level_xpos;
3193   int ly = sy + level_ypos;
3194
3195   DrawMiniElement(sx, sy, (element < 0 ? Feld[lx][ly] : element));
3196
3197   if (change_level)
3198     Feld[lx][ly] = element;
3199 }
3200
3201 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
3202                      int element, boolean change_level)
3203 {
3204   if (from_y == to_y)                   /* horizontal line */
3205   {
3206     int x;
3207     int y = from_y;
3208
3209     if (from_x > to_x)
3210       swap_numbers(&from_x, &to_x);
3211
3212     for (x=from_x; x<=to_x; x++)
3213       DrawLineElement(x, y, element, change_level);
3214   }
3215   else if (from_x == to_x)              /* vertical line */
3216   {
3217     int x = from_x;
3218     int y;
3219
3220     if (from_y > to_y)
3221       swap_numbers(&from_y, &to_y);
3222
3223     for (y=from_y; y<=to_y; y++)
3224       DrawLineElement(x, y, element, change_level);
3225   }
3226   else                                  /* diagonal line */
3227   {
3228     int len_x = ABS(to_x - from_x);
3229     int len_y = ABS(to_y - from_y);
3230     int x, y;
3231
3232     if (len_y < len_x)                  /* a < 1 */
3233     {
3234       float a = (float)len_y / (float)len_x;
3235
3236       if (from_x > to_x)
3237         swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
3238
3239       for (x=0; x<=len_x; x++)
3240       {
3241         y = (int)(a * x + 0.5) * (to_y < from_y ? -1 : +1);
3242         DrawLineElement(from_x + x, from_y + y, element, change_level);
3243       }
3244     }
3245     else                                /* a >= 1 */
3246     {
3247       float a = (float)len_x / (float)len_y;
3248
3249       if (from_y > to_y)
3250         swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
3251
3252       for (y=0; y<=len_y; y++)
3253       {
3254         x = (int)(a * y + 0.5) * (to_x < from_x ? -1 : +1);
3255         DrawLineElement(from_x + x, from_y + y, element, change_level);
3256       }
3257     }
3258   }
3259 }
3260
3261 static void DrawRectangle(int from_x, int from_y, int to_x, int to_y,
3262                           int element, boolean change_level)
3263 {
3264   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
3265   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
3266   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
3267   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
3268 }
3269
3270 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
3271                           int element, boolean change_level)
3272 {
3273   int y;
3274
3275   if (from_y > to_y)
3276     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
3277
3278   for (y=from_y; y<=to_y; y++)
3279     DrawLine(from_x, y, to_x, y, element, change_level);
3280 }
3281
3282 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
3283                        int element, boolean change_level)
3284 {
3285   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
3286   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
3287   int len_x = ABS(to_x - from_x);
3288   int len_y = ABS(to_y - from_y);
3289   int radius, x, y;
3290
3291   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
3292
3293   /* not optimal (some points get drawn twice) but simple,
3294      and fast enough for the few points we are drawing */
3295
3296   for (x=0; x<=radius; x++)
3297   {
3298     int sx, sy, lx, ly;
3299
3300     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
3301
3302     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
3303     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
3304     lx = sx + level_xpos;
3305     ly = sy + level_ypos;
3306
3307     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
3308       DrawLineElement(sx, sy, element, change_level);
3309   }
3310
3311   for (y=0; y<=radius; y++)
3312   {
3313     int sx, sy, lx, ly;
3314
3315     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
3316
3317     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
3318     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
3319     lx = sx + level_xpos;
3320     ly = sy + level_ypos;
3321
3322     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
3323       DrawLineElement(sx, sy, element, change_level);
3324   }
3325 }
3326
3327 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
3328                     int element, boolean change_level)
3329 {
3330   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
3331   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
3332
3333   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
3334 }
3335
3336 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
3337 #if DRAW_CIRCLES_BUTTON_AVAILABLE
3338 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
3339                        int element, boolean change_level)
3340 {
3341   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
3342   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
3343   int mirror_to_x2 = from_x - (to_x2 - from_x);
3344   int mirror_to_y2 = from_y - (to_y2 - from_y);
3345
3346   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
3347   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
3348   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
3349   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element,change_level);
3350 }
3351 #endif
3352
3353 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
3354 {
3355   int from_sx, from_sy;
3356   int to_sx, to_sy;
3357
3358   if (from_x > to_x)
3359     swap_numbers(&from_x, &to_x);
3360
3361   if (from_y > to_y)
3362     swap_numbers(&from_y, &to_y);
3363
3364   from_sx = SX + from_x * MINI_TILEX;
3365   from_sy = SY + from_y * MINI_TILEY;
3366   to_sx = SX + to_x * MINI_TILEX + MINI_TILEX - 1;
3367   to_sy = SY + to_y * MINI_TILEY + MINI_TILEY - 1;
3368
3369   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
3370   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
3371   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
3372   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
3373
3374   if (from_x == to_x && from_y == to_y)
3375     MarkTileDirty(from_x/2, from_y/2);
3376   else
3377     redraw_mask |= REDRAW_FIELD;
3378 }
3379
3380 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
3381                        int element, boolean change_level)
3382 {
3383   if (element == -1 || change_level)
3384     DrawRectangle(from_x, from_y, to_x, to_y, -1, FALSE);
3385   else
3386     DrawAreaBorder(from_x, from_y, to_x, to_y);
3387 }
3388
3389 /* values for CopyBrushExt() */
3390 #define CB_AREA_TO_BRUSH        0
3391 #define CB_BRUSH_TO_CURSOR      1
3392 #define CB_BRUSH_TO_LEVEL       2
3393 #define CB_DELETE_OLD_CURSOR    3
3394
3395 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
3396                          int button, int mode)
3397 {
3398   static short brush_buffer[MAX_ED_FIELDX][MAX_ED_FIELDY];
3399   static int brush_width, brush_height;
3400   static int last_cursor_x = -1, last_cursor_y = -1;
3401   static boolean delete_old_brush;
3402   int new_element = BUTTON_ELEMENT(button);
3403   int x, y;
3404
3405   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
3406     return;
3407
3408   if (mode == CB_AREA_TO_BRUSH)
3409   {
3410     int from_lx, from_ly;
3411
3412     if (from_x > to_x)
3413       swap_numbers(&from_x, &to_x);
3414
3415     if (from_y > to_y)
3416       swap_numbers(&from_y, &to_y);
3417
3418     brush_width = to_x - from_x + 1;
3419     brush_height = to_y - from_y + 1;
3420
3421     from_lx = from_x + level_xpos;
3422     from_ly = from_y + level_ypos;
3423
3424     for (y=0; y<brush_height; y++)
3425     {
3426       for (x=0; x<brush_width; x++)
3427       {
3428         brush_buffer[x][y] = Feld[from_lx + x][from_ly + y];
3429
3430         if (button != 1)
3431           DrawLineElement(from_x + x, from_y + y, new_element, TRUE);
3432       }
3433     }
3434
3435     if (button != 1)
3436       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3437
3438     delete_old_brush = FALSE;
3439   }
3440   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
3441            mode == CB_BRUSH_TO_LEVEL)
3442   {
3443     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
3444     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
3445     int cursor_from_x = cursor_x - brush_width / 2;
3446     int cursor_from_y = cursor_y - brush_height / 2;
3447     int border_from_x = cursor_x, border_from_y = cursor_y;
3448     int border_to_x = cursor_x, border_to_y = cursor_y;
3449
3450     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
3451       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
3452
3453     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
3454         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
3455     {
3456       delete_old_brush = FALSE;
3457       return;
3458     }
3459
3460     for (y=0; y<brush_height; y++)
3461     {
3462       for (x=0; x<brush_width; x++)
3463       {
3464         int sx = cursor_from_x + x;
3465         int sy = cursor_from_y + y;
3466         int lx = sx + level_xpos;
3467         int ly = sy + level_ypos;
3468         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
3469         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
3470                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
3471                        brush_buffer[x][y] : new_element);
3472
3473         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
3474         {
3475           if (sx < border_from_x)
3476             border_from_x = sx;
3477           else if (sx > border_to_x)
3478             border_to_x = sx;
3479           if (sy < border_from_y)
3480             border_from_y = sy;
3481           else if (sy > border_to_y)
3482             border_to_y = sy;
3483
3484           DrawLineElement(sx, sy, element, change_level);
3485         }
3486       }
3487     }
3488
3489     if (mode != CB_DELETE_OLD_CURSOR)
3490       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
3491
3492     last_cursor_x = cursor_x;
3493     last_cursor_y = cursor_y;
3494     delete_old_brush = TRUE;
3495   }
3496 }
3497
3498 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
3499                             int button)
3500 {
3501   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
3502 }
3503
3504 static void CopyBrushToLevel(int x, int y, int button)
3505 {
3506   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
3507 }
3508
3509 static void CopyBrushToCursor(int x, int y)
3510 {
3511   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
3512 }
3513
3514 static void DeleteBrushFromCursor()
3515 {
3516   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
3517 }
3518
3519 static void FloodFill(int from_x, int from_y, int fill_element)
3520 {
3521   int i,x,y;
3522   int old_element;
3523   static int check[4][2] = { {-1,0}, {0,-1}, {1,0}, {0,1} };
3524   static int safety = 0;
3525
3526   /* check if starting field still has the desired content */
3527   if (Feld[from_x][from_y] == fill_element)
3528     return;
3529
3530   safety++;
3531
3532   if (safety > lev_fieldx*lev_fieldy)
3533     Error(ERR_EXIT, "Something went wrong in 'FloodFill()'. Please debug.");
3534
3535   old_element = Feld[from_x][from_y];
3536   Feld[from_x][from_y] = fill_element;
3537
3538   for(i=0;i<4;i++)
3539   {
3540     x = from_x + check[i][0];
3541     y = from_y + check[i][1];
3542
3543     if (IN_LEV_FIELD(x,y) && Feld[x][y] == old_element)
3544       FloodFill(x, y, fill_element);
3545   }
3546
3547   safety--;
3548 }
3549
3550 /* values for DrawLevelText() modes */
3551 #define TEXT_INIT               0
3552 #define TEXT_SETCURSOR          1
3553 #define TEXT_WRITECHAR          2
3554 #define TEXT_BACKSPACE          3
3555 #define TEXT_NEWLINE            4
3556 #define TEXT_END                5
3557 #define TEXT_QUERY_TYPING       6
3558
3559 static int DrawLevelText(int sx, int sy, char letter, int mode)
3560 {
3561   static short delete_buffer[MAX_LEV_FIELDX];
3562   static int start_sx, start_sy;
3563   static int last_sx, last_sy;
3564   static boolean typing = FALSE;
3565   int letter_element = EL_CHAR_ASCII0 + letter;
3566   int lx = 0, ly = 0;
3567
3568   /* map lower case letters to upper case and convert special characters */
3569   if (letter >= 'a' && letter <= 'z')
3570     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
3571   else if (letter == 'ä' || letter == 'Ä')
3572     letter_element = EL_CHAR_AE;
3573   else if (letter == 'ö' || letter == 'Ö')
3574     letter_element = EL_CHAR_OE;
3575   else if (letter == 'ü' || letter == 'Ü')
3576     letter_element = EL_CHAR_UE;
3577   else if (letter == '^')
3578     letter_element = EL_CHAR_COPYRIGHT;
3579   else
3580     letter_element = EL_CHAR_ASCII0 + letter;
3581
3582   if (mode != TEXT_INIT)
3583   {
3584     if (!typing)
3585       return FALSE;
3586
3587     if (mode != TEXT_SETCURSOR)
3588     {
3589       sx = last_sx;
3590       sy = last_sy;
3591     }
3592
3593     lx = last_sx + level_xpos;
3594     ly = last_sy + level_ypos;
3595   }
3596
3597   switch (mode)
3598   {
3599     case TEXT_INIT:
3600       if (typing)
3601         DrawLevelText(0, 0, 0, TEXT_END);
3602
3603       typing = TRUE;
3604       start_sx = last_sx = sx;
3605       start_sy = last_sy = sy;
3606       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
3607       break;
3608
3609     case TEXT_SETCURSOR:
3610       DrawMiniElement(last_sx, last_sy, Feld[lx][ly]);
3611       DrawAreaBorder(sx, sy, sx, sy);
3612       last_sx = sx;
3613       last_sy = sy;
3614       break;
3615
3616     case TEXT_WRITECHAR:
3617       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
3618       {
3619         delete_buffer[sx - start_sx] = Feld[lx][ly];
3620         Feld[lx][ly] = letter_element;
3621
3622         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
3623           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
3624         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
3625           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
3626         else
3627           DrawLevelText(0, 0, 0, TEXT_END);
3628       }
3629       break;
3630
3631     case TEXT_BACKSPACE:
3632       if (sx > start_sx)
3633       {
3634         Feld[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
3635         DrawMiniElement(sx - 1, sy, Feld[lx - 1][ly]);
3636         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
3637       }
3638       break;
3639
3640     case TEXT_NEWLINE:
3641       if (sy + 1 < ed_fieldy - 1 && ly + 1 < lev_fieldy - 1)
3642         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
3643       else
3644         DrawLevelText(0, 0, 0, TEXT_END);
3645       break;
3646
3647     case TEXT_END:
3648       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3649       DrawMiniElement(sx, sy, Feld[lx][ly]);
3650       typing = FALSE;
3651       break;
3652
3653     case TEXT_QUERY_TYPING:
3654       break;
3655
3656     default:
3657       break;
3658   }
3659
3660   return typing;
3661 }
3662
3663 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
3664                           int element, boolean change_level)
3665 {
3666   int lx = sx + level_xpos;
3667   int ly = sy + level_ypos;
3668
3669   if (element == -1)
3670     DrawMiniElement(sx, sy, Feld[lx][ly]);
3671   else
3672     DrawAreaBorder(sx, sy, sx, sy);
3673 }
3674
3675 static void CopyLevelToUndoBuffer(int mode)
3676 {
3677   static boolean accumulated_undo = FALSE;
3678   boolean new_undo_buffer_position = TRUE;
3679   int last_border_element;
3680   int x, y;
3681
3682   switch (mode)
3683   {
3684     case UNDO_IMMEDIATE:
3685       accumulated_undo = FALSE;
3686       break;
3687
3688     case UNDO_ACCUMULATE:
3689       if (accumulated_undo)
3690         new_undo_buffer_position = FALSE;
3691       accumulated_undo = TRUE;
3692       break;
3693
3694     default:
3695       break;
3696   }
3697
3698   if (new_undo_buffer_position)
3699   {
3700     /* new position in undo buffer ring */
3701     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
3702
3703     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
3704       undo_buffer_steps++;
3705   }
3706
3707   for(x=0; x<lev_fieldx; x++)
3708     for(y=0; y<lev_fieldy; y++)
3709       UndoBuffer[undo_buffer_position][x][y] = Feld[x][y];
3710
3711   /* check if drawing operation forces change of border style */
3712   last_border_element = BorderElement;
3713   SetBorderElement();
3714   if (BorderElement != last_border_element)
3715     DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3716
3717 #if 0
3718 #ifdef DEBUG
3719   printf("level saved to undo buffer\n");
3720 #endif
3721 #endif
3722 }
3723
3724 static void RandomPlacement(int new_element)
3725 {
3726   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3727   int num_free_positions;
3728   int num_percentage;
3729   int num_elements;
3730   int x, y;
3731
3732   /* determine number of free positions for the new elements */
3733   /* (maybe this statement should be formatted a bit more readable...) */
3734   num_free_positions = 0;
3735   for (x=0; x<lev_fieldx; x++)
3736     for (y=0; y<lev_fieldy; y++)
3737       if ((free_position[x][y] =
3738            ((random_placement_background_restricted &&
3739              Feld[x][y] == random_placement_background_element) ||
3740             (!random_placement_background_restricted &&
3741              Feld[x][y] != new_element))) == TRUE)
3742         num_free_positions++;
3743
3744   /* determine number of new elements to place there */
3745   num_percentage = num_free_positions * random_placement_value / 100;
3746   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
3747                   num_percentage : random_placement_value);
3748
3749   /* if not more free positions than elements to place, fill whole level */
3750   if (num_elements >= num_free_positions)
3751   {
3752     for (x=0; x<lev_fieldx; x++)
3753       for (y=0; y<lev_fieldy; y++)
3754         Feld[x][y] = new_element;
3755
3756     DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3757     CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3758     return;
3759   }
3760
3761   while (num_elements > 0)
3762   {
3763     x = RND(lev_fieldx);
3764     y = RND(lev_fieldy);
3765
3766     /* don't place element at the same position twice */
3767     if (free_position[x][y])
3768     {
3769       free_position[x][y] = FALSE;
3770       Feld[x][y] = new_element;
3771       num_elements--;
3772     }
3773   }
3774
3775   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3776   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3777 }
3778
3779 void WrapLevel(int dx, int dy)
3780 {
3781   int wrap_dx = lev_fieldx - dx;
3782   int wrap_dy = lev_fieldy - dy;
3783   int x, y;
3784
3785   for(x=0; x<lev_fieldx; x++)
3786     for(y=0; y<lev_fieldy; y++)
3787       FieldBackup[x][y] = Feld[x][y];
3788
3789   for(x=0; x<lev_fieldx; x++)
3790     for(y=0; y<lev_fieldy; y++)
3791       Feld[x][y] =
3792         FieldBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
3793
3794   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3795   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
3796 }
3797
3798 static void HandleDrawingAreas(struct GadgetInfo *gi)
3799 {
3800   static boolean started_inside_drawing_area = FALSE;
3801   int id = gi->custom_id;
3802   boolean button_press_event;
3803   boolean button_release_event;
3804   boolean inside_drawing_area = !gi->event.off_borders;
3805   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
3806   int actual_drawing_function;
3807   int button = gi->event.button;
3808   int new_element = BUTTON_ELEMENT(button);
3809   int sx = gi->event.x, sy = gi->event.y;
3810   int min_sx = 0, min_sy = 0;
3811   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
3812   int lx = 0, ly = 0;
3813   int min_lx = 0, min_ly = 0;
3814   int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
3815   int x, y;
3816
3817   /* handle info callback for each invocation of action callback */
3818   gi->callback_info(gi);
3819
3820   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
3821   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
3822
3823   /* make sure to stay inside drawing area boundaries */
3824   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
3825   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
3826
3827   if (draw_level)
3828   {
3829     /* get positions inside level field */
3830     lx = sx + level_xpos;
3831     ly = sy + level_ypos;
3832
3833     if (!IN_LEV_FIELD(lx, ly))
3834       inside_drawing_area = FALSE;
3835
3836     /* make sure to stay inside level field boundaries */
3837     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
3838     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
3839
3840     /* correct drawing area positions accordingly */
3841     sx = lx - level_xpos;
3842     sy = ly - level_ypos;
3843   }
3844
3845   if (button_press_event)
3846     started_inside_drawing_area = inside_drawing_area;
3847
3848   if (!started_inside_drawing_area)
3849     return;
3850
3851   if (!button && !button_release_event)
3852     return;
3853
3854   /* automatically switch to 'single item' drawing mode, if needed */
3855   actual_drawing_function =
3856     (draw_level ? drawing_function : GADGET_ID_SINGLE_ITEMS);
3857
3858   switch (actual_drawing_function)
3859   {
3860     case GADGET_ID_SINGLE_ITEMS:
3861       if (draw_level)
3862       {
3863         if (button_release_event)
3864         {
3865           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3866
3867           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
3868               !inside_drawing_area)
3869             DeleteBrushFromCursor();
3870         }
3871
3872         if (!button)
3873           break;
3874
3875         if (draw_with_brush)
3876         {
3877           if (!button_release_event)
3878             CopyBrushToLevel(sx, sy, button);
3879         }
3880         else if (new_element != Feld[lx][ly])
3881         {
3882           if (new_element == EL_PLAYER1)
3883           {
3884             /* remove player at old position */
3885             for(y=0; y<lev_fieldy; y++)
3886             {
3887               for(x=0; x<lev_fieldx; x++)
3888               {
3889                 if (Feld[x][y] == EL_PLAYER1)
3890                 {
3891                   Feld[x][y] = EL_EMPTY;
3892                   if (x - level_xpos >= 0 && x - level_xpos < ed_fieldx &&
3893                       y - level_ypos >= 0 && y - level_ypos < ed_fieldy)
3894                     DrawMiniElement(x - level_xpos, y - level_ypos,
3895                                     EL_EMPTY);
3896                 }
3897               }
3898             }
3899           }
3900
3901           Feld[lx][ly] = new_element;
3902           DrawMiniElement(sx, sy, new_element);
3903         }
3904       }
3905       else
3906       {
3907         DrawMiniGraphicExt(drawto,
3908                            gi->x + sx * MINI_TILEX,
3909                            gi->y + sy * MINI_TILEY,
3910                            el2edimg(new_element));
3911         DrawMiniGraphicExt(window,
3912                            gi->x + sx * MINI_TILEX,
3913                            gi->y + sy * MINI_TILEY,
3914                            el2edimg(new_element));
3915
3916         if (id == GADGET_ID_AMOEBA_CONTENT)
3917           level.amoeba_content = new_element;
3918         else if (id == GADGET_ID_RANDOM_BACKGROUND)
3919           random_placement_background_element = new_element;
3920         else if (id >= GADGET_ID_ELEM_CONTENT_0 &&
3921                  id <= GADGET_ID_ELEM_CONTENT_7)
3922           level.yam_content[id - GADGET_ID_ELEM_CONTENT_0][sx][sy] =
3923             new_element;
3924       }
3925       break;
3926
3927     case GADGET_ID_CONNECTED_ITEMS:
3928       {
3929         static int last_sx = -1;
3930         static int last_sy = -1;
3931
3932         if (button_release_event)
3933           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3934
3935         if (button)
3936         {
3937           if (!button_press_event)
3938             DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
3939
3940           last_sx = sx;
3941           last_sy = sy;
3942         }
3943       }
3944       break;
3945
3946     case GADGET_ID_LINE:
3947     case GADGET_ID_ARC:
3948     case GADGET_ID_RECTANGLE:
3949     case GADGET_ID_FILLED_BOX:
3950     case GADGET_ID_GRAB_BRUSH:
3951     case GADGET_ID_TEXT:
3952       {
3953         static int last_sx = -1;
3954         static int last_sy = -1;
3955         static int start_sx = -1;
3956         static int start_sy = -1;
3957         void (*draw_func)(int, int, int, int, int, boolean);
3958
3959         if (drawing_function == GADGET_ID_LINE)
3960           draw_func = DrawLine;
3961         else if (drawing_function == GADGET_ID_ARC)
3962           draw_func = DrawArc;
3963         else if (drawing_function == GADGET_ID_RECTANGLE)
3964           draw_func = DrawRectangle;
3965         else if (drawing_function == GADGET_ID_FILLED_BOX)
3966           draw_func = DrawFilledBox;
3967         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
3968           draw_func = SelectArea;
3969         else /* (drawing_function == GADGET_ID_TEXT) */
3970           draw_func = SetTextCursor;
3971
3972         if (button_press_event)
3973         {
3974           draw_func(sx, sy, sx, sy, new_element, FALSE);
3975           start_sx = last_sx = sx;
3976           start_sy = last_sy = sy;
3977
3978           if (drawing_function == GADGET_ID_TEXT)
3979             DrawLevelText(0, 0, 0, TEXT_END);
3980         }
3981         else if (button_release_event)
3982         {
3983           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
3984           if (drawing_function == GADGET_ID_GRAB_BRUSH)
3985           {
3986             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
3987             CopyBrushToCursor(sx, sy);
3988             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
3989                           MB_LEFTBUTTON);
3990             draw_with_brush = TRUE;
3991           }
3992           else if (drawing_function == GADGET_ID_TEXT)
3993             DrawLevelText(sx, sy, 0, TEXT_INIT);
3994           else
3995             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3996         }
3997         else if (last_sx != sx || last_sy != sy)
3998         {
3999           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
4000           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
4001           last_sx = sx;
4002           last_sy = sy;
4003         }
4004       }
4005       break;
4006
4007     case GADGET_ID_FLOOD_FILL:
4008       if (button_press_event && Feld[lx][ly] != new_element)
4009       {
4010         FloodFill(lx, ly, new_element);
4011         DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4012         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
4013       }
4014       break;
4015
4016     case GADGET_ID_PICK_ELEMENT:
4017       if (button_release_event)
4018         ClickOnGadget(level_editor_gadget[last_drawing_function],
4019                       MB_LEFTBUTTON);
4020       else
4021         PickDrawingElement(button, Feld[lx][ly]);
4022
4023       break;
4024
4025     default:
4026       break;
4027   }
4028 }
4029
4030 static void HandleCounterButtons(struct GadgetInfo *gi)
4031 {
4032   int gadget_id = gi->custom_id;
4033   int counter_id = gi->custom_type_id;
4034   int button = gi->event.button;
4035   int *counter_value = counterbutton_info[counter_id].value;
4036   int step = BUTTON_STEPSIZE(button) *
4037     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
4038
4039   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
4040   {
4041     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
4042     boolean released = (gi->event.type == GD_EVENT_RELEASED);
4043     boolean level_changed = LevelChanged();
4044
4045     if ((level_changed && pressed) || (!level_changed && released))
4046       return;
4047
4048     if (level_changed && !Request("Level has changed! Discard changes ?",
4049                                   REQ_ASK))
4050     {
4051       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
4052         ModifyEditorCounter(counter_id, *counter_value);
4053       return;
4054     }
4055   }
4056
4057   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
4058     *counter_value = gi->text.number_value;
4059   else
4060     ModifyEditorCounter(counter_id, *counter_value + step);
4061
4062   switch (counter_id)
4063   {
4064     case ED_COUNTER_ID_ELEM_CONTENT:
4065       DrawElementContentAreas();
4066       break;
4067
4068     case ED_COUNTER_ID_LEVEL_XSIZE:
4069     case ED_COUNTER_ID_LEVEL_YSIZE:
4070       lev_fieldx = level.fieldx;
4071       lev_fieldy = level.fieldy;
4072       break;
4073
4074     case ED_COUNTER_ID_SELECT_LEVEL:
4075       LoadLevel(level_nr);
4076       TapeErase();
4077       ResetUndoBuffer();
4078       DrawEditModeWindow();
4079       break;
4080
4081     default:
4082       break;
4083   }
4084 }
4085
4086 static void HandleTextInputGadgets(struct GadgetInfo *gi)
4087 {
4088   strcpy(textinput_info[gi->custom_type_id].value, gi->text.value);
4089 }
4090
4091 static void HandleRadiobuttons(struct GadgetInfo *gi)
4092 {
4093   *radiobutton_info[gi->custom_type_id].value =
4094     radiobutton_info[gi->custom_type_id].checked_value;
4095 }
4096
4097 static void HandleCheckbuttons(struct GadgetInfo *gi)
4098 {
4099   int type_id = gi->custom_type_id;
4100
4101   *checkbutton_info[type_id].value ^= TRUE;
4102
4103   if (type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
4104       type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST)
4105     CopyCustomElementPropertiesToGame();
4106 }
4107
4108 static void HandleControlButtons(struct GadgetInfo *gi)
4109 {
4110   int id = gi->custom_id;
4111   int button = gi->event.button;
4112   int step = BUTTON_STEPSIZE(button);
4113   int new_element = BUTTON_ELEMENT(button);
4114   int i, x, y;
4115
4116   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
4117     DrawLevelText(0, 0, 0, TEXT_END);
4118
4119   if (id < ED_NUM_CTRL1_BUTTONS && id != GADGET_ID_PROPERTIES &&
4120       edit_mode != ED_MODE_DRAWING)
4121   {
4122     DrawDrawingWindow();
4123     edit_mode = ED_MODE_DRAWING;
4124   }
4125
4126   switch (id)
4127   {
4128     case GADGET_ID_SCROLL_LEFT:
4129       if (level_xpos >= 0)
4130       {
4131         if (lev_fieldx < ed_fieldx - 2)
4132           break;
4133
4134         level_xpos -= step;
4135         if (level_xpos < -1)
4136           level_xpos = -1;
4137         if (button == 1)
4138           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
4139         else
4140           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4141
4142         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
4143                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
4144       }
4145       break;
4146
4147     case GADGET_ID_SCROLL_RIGHT:
4148       if (level_xpos <= lev_fieldx - ed_fieldx)
4149       {
4150         if (lev_fieldx < ed_fieldx - 2)
4151           break;
4152
4153         level_xpos += step;
4154         if (level_xpos > lev_fieldx - ed_fieldx + 1)
4155           level_xpos = lev_fieldx - ed_fieldx + 1;
4156         if (button == 1)
4157           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
4158         else
4159           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4160
4161         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
4162                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
4163       }
4164       break;
4165
4166     case GADGET_ID_SCROLL_UP:
4167       if (level_ypos >= 0)
4168       {
4169         if (lev_fieldy < ed_fieldy - 2)
4170           break;
4171
4172         level_ypos -= step;
4173         if (level_ypos < -1)
4174           level_ypos = -1;
4175         if (button == 1)
4176           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
4177         else
4178           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4179
4180         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
4181                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
4182       }
4183       break;
4184
4185     case GADGET_ID_SCROLL_DOWN:
4186       if (level_ypos <= lev_fieldy - ed_fieldy)
4187       {
4188         if (lev_fieldy < ed_fieldy - 2)
4189           break;
4190
4191         level_ypos += step;
4192         if (level_ypos > lev_fieldy - ed_fieldy + 1)
4193           level_ypos = lev_fieldy - ed_fieldy + 1;
4194         if (button == 1)
4195           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_UP);
4196         else
4197           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4198
4199         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
4200                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
4201       }
4202       break;
4203
4204     case GADGET_ID_SCROLL_HORIZONTAL:
4205       level_xpos = gi->event.item_position - 1;
4206       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4207       break;
4208
4209     case GADGET_ID_SCROLL_VERTICAL:
4210       level_ypos = gi->event.item_position - 1;
4211       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4212       break;
4213
4214     case GADGET_ID_SCROLL_LIST_UP:
4215     case GADGET_ID_SCROLL_LIST_DOWN:
4216     case GADGET_ID_SCROLL_LIST_VERTICAL:
4217       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
4218         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
4219       else
4220       {
4221         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
4222         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
4223
4224         if (element_shift < 0)
4225           element_shift = 0;
4226         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
4227           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
4228
4229         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
4230                      GDI_SCROLLBAR_ITEM_POSITION,
4231                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
4232       }
4233
4234       for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
4235       {
4236         int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
4237         struct GadgetInfo *gi = level_editor_gadget[gadget_id];
4238         struct GadgetDesign *gd = &gi->deco.design;
4239         int element = editor_elements[element_shift + i];
4240
4241         UnmapGadget(gi);
4242         getMiniGraphicSource(el2edimg(element), &gd->bitmap, &gd->x, &gd->y);
4243         ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
4244         MapGadget(gi);
4245       }
4246       break;
4247
4248     case GADGET_ID_WRAP_LEFT:
4249       WrapLevel(-step, 0);
4250       break;
4251
4252     case GADGET_ID_WRAP_RIGHT:
4253       WrapLevel(step, 0);
4254       break;
4255
4256     case GADGET_ID_WRAP_UP:
4257       WrapLevel(0, -step);
4258       break;
4259
4260     case GADGET_ID_WRAP_DOWN:
4261       WrapLevel(0, step);
4262       break;
4263
4264     case GADGET_ID_SINGLE_ITEMS:
4265     case GADGET_ID_CONNECTED_ITEMS:
4266     case GADGET_ID_LINE:
4267     case GADGET_ID_ARC:
4268     case GADGET_ID_TEXT:
4269     case GADGET_ID_RECTANGLE:
4270     case GADGET_ID_FILLED_BOX:
4271     case GADGET_ID_FLOOD_FILL:
4272     case GADGET_ID_GRAB_BRUSH:
4273     case GADGET_ID_PICK_ELEMENT:
4274       last_drawing_function = drawing_function;
4275       drawing_function = id;
4276       draw_with_brush = FALSE;
4277       break;
4278
4279     case GADGET_ID_RANDOM_PLACEMENT:
4280       RandomPlacement(new_element);
4281       break;
4282
4283     case GADGET_ID_PROPERTIES:
4284       if (edit_mode != ED_MODE_PROPERTIES)
4285       {
4286         properties_element = new_element;
4287         DrawPropertiesWindow();
4288         edit_mode = ED_MODE_PROPERTIES;
4289       }
4290       else
4291       {
4292         DrawDrawingWindow();
4293         edit_mode = ED_MODE_DRAWING;
4294       }
4295       break;
4296
4297     case GADGET_ID_UNDO:
4298       if (undo_buffer_steps == 0)
4299       {
4300         Request("Undo buffer empty !", REQ_CONFIRM);
4301         break;
4302       }
4303
4304       undo_buffer_position =
4305         (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
4306       undo_buffer_steps--;
4307
4308       for(x=0; x<lev_fieldx; x++)
4309         for(y=0; y<lev_fieldy; y++)
4310           Feld[x][y] = UndoBuffer[undo_buffer_position][x][y];
4311       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos,level_ypos);
4312       break;
4313
4314     case GADGET_ID_INFO:
4315       if (edit_mode != ED_MODE_INFO)
4316       {
4317         DrawLevelInfoWindow();
4318         edit_mode = ED_MODE_INFO;
4319       }
4320       else
4321       {
4322         DrawDrawingWindow();
4323         edit_mode = ED_MODE_DRAWING;
4324       }
4325       break;
4326
4327     case GADGET_ID_CLEAR:
4328       for(x=0; x<MAX_LEV_FIELDX; x++)
4329         for(y=0; y<MAX_LEV_FIELDY; y++)
4330           Feld[x][y] = (button == 1 ? EL_EMPTY : new_element);
4331       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
4332
4333       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4334       break;
4335
4336     case GADGET_ID_SAVE:
4337       if (leveldir_current->readonly)
4338       {
4339         Request("This level is read only !", REQ_CONFIRM);
4340         break;
4341       }
4342
4343       if (!LevelContainsPlayer)
4344         Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
4345       else
4346       {
4347         if (Request("Save this level and kill the old ?", REQ_ASK))
4348         {
4349           CopyPlayfield(Feld, Ur);
4350
4351           SaveLevel(level_nr);
4352         }
4353       }
4354       break;
4355
4356     case GADGET_ID_TEST:
4357       if (!LevelContainsPlayer)
4358         Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
4359       else
4360       {
4361         if (LevelChanged())
4362           level.game_version = GAME_VERSION_ACTUAL;
4363
4364         CopyPlayfield(Ur, FieldBackup);
4365         CopyPlayfield(Feld, Ur);
4366
4367         UnmapLevelEditorGadgets();
4368         UndrawSpecialEditorDoor();
4369
4370         CloseDoor(DOOR_CLOSE_ALL);
4371
4372         DrawCompleteVideoDisplay();
4373
4374         if (setup.autorecord)
4375           TapeStartRecording();
4376
4377         level_editor_test_game = TRUE;
4378         game_status = PLAYING;
4379
4380         InitGame();
4381       }
4382       break;
4383
4384     case GADGET_ID_EXIT:
4385       RequestExitLevelEditor(TRUE);     /* if level has changed, ask user */
4386       break;
4387
4388     default:
4389       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
4390           id <= GADGET_ID_ELEMENTLIST_LAST)
4391       {
4392         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
4393         int new_element = editor_elements[element_position + element_shift];
4394
4395         PickDrawingElement(button, new_element);
4396
4397         if (!HAS_CONTENT(properties_element) ||
4398             !stick_element_properties_window)
4399         {
4400           properties_element = new_element;
4401           if (edit_mode == ED_MODE_PROPERTIES)
4402             DrawPropertiesWindow();
4403         }
4404
4405         if (drawing_function == GADGET_ID_PICK_ELEMENT)
4406           ClickOnGadget(level_editor_gadget[last_drawing_function],
4407                         MB_LEFTBUTTON);
4408       }
4409 #ifdef DEBUG
4410       else if (gi->event.type == GD_EVENT_PRESSED)
4411         printf("default: HandleControlButtons: GD_EVENT_PRESSED(%d)\n", id);
4412       else if (gi->event.type == GD_EVENT_RELEASED)
4413         printf("default: HandleControlButtons: GD_EVENT_RELEASED(%d)\n", id);
4414       else if (gi->event.type == GD_EVENT_MOVING)
4415         printf("default: HandleControlButtons: GD_EVENT_MOVING(%d)\n", id);
4416       else
4417         printf("default: HandleControlButtons: ? (id == %d)\n", id);
4418 #endif
4419       break;
4420   }
4421 }
4422
4423 void HandleLevelEditorKeyInput(Key key)
4424 {
4425   char letter = getCharFromKey(key);
4426   int button = MB_LEFTBUTTON;
4427
4428   if (drawing_function == GADGET_ID_TEXT &&
4429       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
4430   {
4431     if (letter)
4432       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
4433     else if (key == KSYM_Delete || key == KSYM_BackSpace)
4434       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
4435     else if (key == KSYM_Return)
4436       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
4437     else if (key == KSYM_Escape)
4438       DrawLevelText(0, 0, 0, TEXT_END);
4439   }
4440   else if (button_status == MB_RELEASED)
4441   {
4442     int i, id = GADGET_ID_NONE;
4443
4444     switch (key)
4445     {
4446       case KSYM_Left:
4447         id = GADGET_ID_SCROLL_LEFT;
4448         break;
4449       case KSYM_Right:
4450         id = GADGET_ID_SCROLL_RIGHT;
4451         break;
4452       case KSYM_Up:
4453         id = GADGET_ID_SCROLL_UP;
4454         break;
4455       case KSYM_Down:
4456         id = GADGET_ID_SCROLL_DOWN;
4457         break;
4458       case KSYM_Page_Up:
4459         id = GADGET_ID_SCROLL_LIST_UP;
4460         button = MB_RIGHTBUTTON;
4461         break;
4462       case KSYM_Page_Down:
4463         id = GADGET_ID_SCROLL_LIST_DOWN;
4464         button = MB_RIGHTBUTTON;
4465         break;
4466
4467       case KSYM_Escape:
4468         if (edit_mode == ED_MODE_DRAWING)
4469         {
4470           RequestExitLevelEditor(setup.ask_on_escape);
4471         }
4472         else
4473         {
4474           DrawDrawingWindow();
4475           edit_mode = ED_MODE_DRAWING;
4476         }
4477         break;
4478
4479       default:
4480         break;
4481     }
4482
4483     if (id != GADGET_ID_NONE)
4484       ClickOnGadget(level_editor_gadget[id], button);
4485     else if (letter == '.')
4486       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
4487     else if (key == KSYM_Return || key == setup.shortcut.toggle_pause)
4488       ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
4489     else
4490       for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
4491         if (letter && letter == control_info[i].shortcut)
4492           if (!anyTextGadgetActive())
4493             ClickOnGadget(level_editor_gadget[i], button);
4494   }
4495 }
4496
4497 void HandleLevelEditorIdle()
4498 {
4499   static unsigned long action_delay = 0;
4500   unsigned long action_delay_value = GameFrameDelay;
4501   int xpos = 1, ypos = 2;
4502
4503   if (edit_mode != ED_MODE_PROPERTIES)
4504     return;
4505
4506   if (!DelayReached(&action_delay, action_delay_value))
4507     return;
4508
4509   DrawGraphicAnimationExt(drawto,
4510                           SX + xpos * TILEX,
4511                           SY + ypos * TILEY + MINI_TILEY / 2,
4512                           el2edimg(properties_element), -1, NO_MASKING);
4513
4514   MarkTileDirty(xpos, ypos);
4515   MarkTileDirty(xpos, ypos + 1);
4516
4517   FrameCounter++;       /* increase animation frame counter */
4518 }
4519
4520 void ClearEditorGadgetInfoText()
4521 {
4522   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
4523 }
4524
4525 void HandleEditorGadgetInfoText(void *ptr)
4526 {
4527   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
4528   char infotext[MAX_INFOTEXT_LEN + 1];
4529   char shortcut[MAX_INFOTEXT_LEN + 1];
4530
4531   if (game_status != LEVELED)
4532     return;
4533
4534   ClearEditorGadgetInfoText();
4535
4536   if (gi->event.type == GD_EVENT_INFO_LEAVING)
4537     return;
4538
4539   /* misuse this function to delete brush cursor, if needed */
4540   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
4541     DeleteBrushFromCursor();
4542
4543   if (gi == NULL || gi->info_text == NULL)
4544     return;
4545
4546   strncpy(infotext, gi->info_text, MAX_INFOTEXT_LEN);
4547   infotext[MAX_INFOTEXT_LEN] = '\0';
4548
4549   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
4550   {
4551     int key = control_info[gi->custom_id].shortcut;
4552
4553     if (key)
4554     {
4555       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)      /* special case 1 */
4556         sprintf(shortcut, " ('.' or '%c')", key);
4557       else if (gi->custom_id == GADGET_ID_TEST)         /* special case 2 */
4558         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
4559       else                                              /* normal case */
4560         sprintf(shortcut, " ('%s%c')",
4561                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
4562
4563       if (strlen(infotext) + strlen(shortcut) <= MAX_INFOTEXT_LEN)
4564         strcat(infotext, shortcut);
4565     }
4566   }
4567
4568   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, FS_SMALL, FC_YELLOW);
4569 }
4570
4571 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
4572 {
4573   static int start_lx, start_ly;
4574   char *infotext;
4575   int id = gi->custom_id;
4576   int sx = gi->event.x;
4577   int sy = gi->event.y;
4578   int lx = sx + level_xpos;
4579   int ly = sy + level_ypos;
4580   int min_sx = 0, min_sy = 0;
4581   int max_sx = gi->drawing.area_xsize - 1;
4582   int max_sy = gi->drawing.area_ysize - 1;
4583
4584   ClearEditorGadgetInfoText();
4585
4586   if (gi->event.type == GD_EVENT_INFO_LEAVING)
4587     return;
4588
4589   /* make sure to stay inside drawing area boundaries */
4590   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
4591   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
4592
4593   if (id == GADGET_ID_DRAWING_LEVEL)
4594   {
4595     if (button_status)
4596     {
4597       int min_lx = 0, min_ly = 0;
4598       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
4599
4600       /* get positions inside level field */
4601       lx = sx + level_xpos;
4602       ly = sy + level_ypos;
4603
4604       /* make sure to stay inside level field boundaries */
4605       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
4606       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
4607
4608       /* correct drawing area positions accordingly */
4609       sx = lx - level_xpos;
4610       sy = ly - level_ypos;
4611     }
4612
4613     if (IN_ED_FIELD(sx,sy) && IN_LEV_FIELD(lx, ly))
4614     {
4615       if (button_status)        /* if (gi->state == GD_BUTTON_PRESSED) */
4616       {
4617         if (gi->event.type == GD_EVENT_PRESSED)
4618         {
4619           start_lx = lx;
4620           start_ly = ly;
4621         }
4622
4623         switch (drawing_function)
4624         {
4625           case GADGET_ID_SINGLE_ITEMS:
4626             infotext = "Drawing single items";
4627             break;
4628           case GADGET_ID_CONNECTED_ITEMS:
4629             infotext = "Drawing connected items";
4630             break;
4631           case GADGET_ID_LINE:
4632             infotext = "Drawing line";
4633             break;
4634           case GADGET_ID_ARC:
4635             infotext = "Drawing arc";
4636             break;
4637           case GADGET_ID_TEXT:
4638             infotext = "Setting text cursor";
4639             break;
4640           case GADGET_ID_RECTANGLE:
4641             infotext = "Drawing rectangle";
4642             break;
4643           case GADGET_ID_FILLED_BOX:
4644             infotext = "Drawing filled box";
4645             break;
4646           case GADGET_ID_FLOOD_FILL:
4647             infotext = "Flood fill";
4648             break;
4649           case GADGET_ID_GRAB_BRUSH:
4650             infotext = "Grabbing brush";
4651             break;
4652           case GADGET_ID_PICK_ELEMENT:
4653             infotext = "Picking element";
4654             break;
4655
4656           default:
4657             infotext = "Drawing position";
4658             break;
4659         }
4660
4661         if (drawing_function == GADGET_ID_PICK_ELEMENT)
4662           DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FC_YELLOW,
4663                     "%s: %d, %d", infotext, lx, ly);
4664         else
4665           DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FC_YELLOW,
4666                     "%s: %d, %d", infotext,
4667                     ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
4668       }
4669       else if (drawing_function == GADGET_ID_PICK_ELEMENT)
4670         DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FC_YELLOW,
4671                   "%s", getElementInfoText(Feld[lx][ly]));
4672       else
4673         DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FC_YELLOW,
4674                   "Level position: %d, %d", lx, ly);
4675     }
4676
4677     /* misuse this function to draw brush cursor, if needed */
4678     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
4679     {
4680       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
4681         CopyBrushToCursor(sx, sy);
4682       else
4683         DeleteBrushFromCursor();
4684     }
4685   }
4686   else if (id == GADGET_ID_AMOEBA_CONTENT)
4687     DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FC_YELLOW,
4688               "Amoeba content");
4689   else if (id == GADGET_ID_RANDOM_BACKGROUND)
4690     DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FC_YELLOW,
4691               "Random placement background");
4692   else
4693     DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FC_YELLOW,
4694               "Content area %d position: %d, %d",
4695               id - GADGET_ID_ELEM_CONTENT_0 + 1, sx, sy);
4696 }
4697
4698 void RequestExitLevelEditor(boolean ask_if_level_has_changed)
4699 {
4700   if (!ask_if_level_has_changed ||
4701       !LevelChanged() ||
4702       Request("Level has changed! Exit without saving ?",
4703               REQ_ASK | REQ_STAY_OPEN))
4704   {
4705     CloseDoor(DOOR_CLOSE_1);
4706     /*
4707     CloseDoor(DOOR_CLOSE_ALL);
4708     */
4709     game_status = MAINMENU;
4710     DrawMainMenu();
4711   }
4712   else
4713   {
4714     CloseDoor(DOOR_CLOSE_1);
4715     BlitBitmap(bitmap_db_door, bitmap_db_door,
4716                DOOR_GFX_PAGEX2, DOOR_GFX_PAGEY1, DXSIZE,DYSIZE,
4717                DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
4718     OpenDoor(DOOR_OPEN_1);
4719   }
4720 }