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_SLIPPERY       80
 296
 297 /* gadgets for buttons in element list */
 298 #define GADGET_ID_ELEMENTLIST_FIRST     81
 299 #define GADGET_ID_ELEMENTLIST_LAST      (81 + ED_NUM_ELEMENTLIST_BUTTONS - 1)
 300
 301 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 302
 303 /* radio button numbers */
 304 #define RADIO_NR_NONE                   0
 305 #define RADIO_NR_DRAWING_TOOLBOX        1
 306 #define RADIO_NR_RANDOM_ELEMENTS        2
 307
 308 /* values for counter gadgets */
 309 #define ED_COUNTER_ID_ELEM_SCORE        0
 310 #define ED_COUNTER_ID_ELEM_CONTENT      1
 311 #define ED_COUNTER_ID_LEVEL_XSIZE       2
 312 #define ED_COUNTER_ID_LEVEL_YSIZE       3
 313 #define ED_COUNTER_ID_LEVEL_COLLECT     4
 314 #define ED_COUNTER_ID_LEVEL_TIMELIMIT   5
 315 #define ED_COUNTER_ID_LEVEL_TIMESCORE   6
 316 #define ED_COUNTER_ID_LEVEL_RANDOM      7
 317 #define ED_COUNTER_ID_SELECT_LEVEL      8
 318
 319 #define ED_NUM_COUNTERBUTTONS           9
 320
 321 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 322 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM
 323
 324 /* values for scrollbutton gadgets */
 325 #define ED_SCROLLBUTTON_ID_AREA_UP      0
 326 #define ED_SCROLLBUTTON_ID_AREA_DOWN    1
 327 #define ED_SCROLLBUTTON_ID_AREA_LEFT    2
 328 #define ED_SCROLLBUTTON_ID_AREA_RIGHT   3
 329 #define ED_SCROLLBUTTON_ID_LIST_UP      4
 330 #define ED_SCROLLBUTTON_ID_LIST_DOWN    5
 331
 332 #define ED_NUM_SCROLLBUTTONS            6
 333
 334 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 335 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 336
 337 /* values for scrollbar gadgets */
 338 #define ED_SCROLLBAR_ID_AREA_HORIZONTAL 0
 339 #define ED_SCROLLBAR_ID_AREA_VERTICAL   1
 340 #define ED_SCROLLBAR_ID_LIST_VERTICAL   2
 341
 342 #define ED_NUM_SCROLLBARS               3
 343
 344 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 345 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 346
 347 /* values for text input gadgets */
 348 #define ED_TEXTINPUT_ID_LEVEL_NAME      0
 349 #define ED_TEXTINPUT_ID_LEVEL_AUTHOR    1
 350
 351 #define ED_NUM_TEXTINPUT                2
 352
 353 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 354 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 355
 356 /* values for checkbutton gadgets */
 357 #define ED_CHECKBUTTON_ID_DOUBLE_SPEED          0
 358 #define ED_CHECKBUTTON_ID_GRAVITY               1
 359 #define ED_CHECKBUTTON_ID_RANDOM_RESTRICTED     2
 360 #define ED_CHECKBUTTON_ID_STICK_ELEMENT         3
 361 #define ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS      4
 362 #define ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE 5
 363 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL       6
 364 #define ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY       7
 365
 366 #define ED_NUM_CHECKBUTTONS                     8
 367
 368 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_DOUBLE_SPEED
 369 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
 370
 371 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
 372 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY
 373
 374 /* values for radiobutton gadgets */
 375 #define ED_RADIOBUTTON_ID_PERCENTAGE    0
 376 #define ED_RADIOBUTTON_ID_QUANTITY      1
 377
 378 #define ED_NUM_RADIOBUTTONS             2
 379
 380 #define ED_RADIOBUTTON_ID_LEVEL_FIRST   ED_RADIOBUTTON_ID_PERCENTAGE
 381 #define ED_RADIOBUTTON_ID_LEVEL_LAST    ED_RADIOBUTTON_ID_QUANTITY
 382
 383 /* values for CopyLevelToUndoBuffer() */
 384 #define UNDO_IMMEDIATE                  0
 385 #define UNDO_ACCUMULATE                 1
 386
 387 /* values for ClearEditorGadgetInfoText() and HandleGadgetInfoText() */
 388 #define INFOTEXT_XPOS                   SX
 389 #define INFOTEXT_YPOS                   (SY + SYSIZE - MINI_TILEX + 2)
 390 #define INFOTEXT_XSIZE                  SXSIZE
 391 #define INFOTEXT_YSIZE                  MINI_TILEX
 392 #define MAX_INFOTEXT_LEN                (SXSIZE / FONT2_XSIZE)
 393
 394 static struct
 395 {
 396   char shortcut;
 397   char *text;
 398 } control_info[ED_NUM_CTRL_BUTTONS] =
 399 {
 400   { 's', "draw single items" },
 401   { 'd', "draw connected items" },
 402   { 'l', "draw lines" },
 403   { 'a', "draw arcs" },
 404   { 'r', "draw outline rectangles" },
 405   { 'R', "draw filled rectangles" },
 406   { '\0', "wrap (rotate) level up" },
 407   { 't', "enter text elements" },
 408   { 'f', "flood fill" },
 409   { '\0', "wrap (rotate) level left" },
 410   { '?', "properties of drawing element" },
 411   { '\0', "wrap (rotate) level right" },
 412   { '\0', "random element placement" },
 413   { 'b', "grab brush" },
 414   { '\0', "wrap (rotate) level down" },
 415   { ',', "pick drawing element" },
 416   { 'U', "undo last operation" },
 417   { 'I', "level properties" },
 418   { 'S', "save level" },
 419   { 'C', "clear level" },
 420   { 'T', "test level" },
 421   { 'E', "exit level editor" }
 422 };
 423
 424 /* values for random placement */
 425 #define RANDOM_USE_PERCENTAGE           0
 426 #define RANDOM_USE_QUANTITY             1
 427
 428 static int random_placement_value = 10;
 429 static int random_placement_method = RANDOM_USE_QUANTITY;
 430 static int random_placement_background_element = EL_SAND;
 431 static boolean random_placement_background_restricted = FALSE;
 432 static boolean stick_element_properties_window = FALSE;
 433
 434 static struct
 435 {
 436   boolean indestructible;
 437   boolean can_fall;
 438   boolean slippery;
 439 } custom_element_properties[NUM_CUSTOM_ELEMENTS];
 440
 441 static struct
 442 {
 443   int x, y;
 444   int min_value, max_value;
 445   int gadget_id_down, gadget_id_up;
 446   int gadget_id_text;
 447   int *value;
 448   char *infotext_above, *infotext_right;
 449 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
 450 {
 451   {
 452     ED_COUNT_ELEM_SCORE_XPOS,           ED_COUNT_ELEM_SCORE_YPOS,
 453     MIN_SCORE,                          MAX_SCORE,
 454     GADGET_ID_ELEM_SCORE_DOWN,          GADGET_ID_ELEM_SCORE_UP,
 455     GADGET_ID_ELEM_SCORE_TEXT,
 456     NULL,                               /* will be set when used */
 457     "element score",                    NULL
 458   },
 459   {
 460     ED_COUNT_ELEM_CONTENT_XPOS,         ED_COUNT_ELEM_CONTENT_YPOS,
 461     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
 462     GADGET_ID_ELEM_CONTENT_DOWN,        GADGET_ID_ELEM_CONTENT_UP,
 463     GADGET_ID_ELEM_CONTENT_TEXT,
 464     &level.num_yam_contents,
 465     "element content",                  NULL
 466   },
 467   {
 468     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(2),
 469     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
 470     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
 471     GADGET_ID_LEVEL_XSIZE_TEXT,
 472     &level.fieldx,
 473     "playfield size",                   "width",
 474   },
 475   {
 476     ED_SETTINGS_XPOS + 2 * DXSIZE,      ED_COUNTER_YPOS(2),
 477     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
 478     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
 479     GADGET_ID_LEVEL_YSIZE_TEXT,
 480     &level.fieldy,
 481     NULL,                               "height",
 482   },
 483   {
 484     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(3),
 485     0,                                  999,
 486     GADGET_ID_LEVEL_COLLECT_DOWN,       GADGET_ID_LEVEL_COLLECT_UP,
 487     GADGET_ID_LEVEL_COLLECT_TEXT,
 488     &level.gems_needed,
 489     "number of emeralds to collect",    NULL
 490   },
 491   {
 492     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 493     0,                                  999,
 494     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
 495     GADGET_ID_LEVEL_TIMELIMIT_TEXT,
 496     &level.time,
 497     "time available to solve level",    "(0 => no time limit)"
 498   },
 499   {
 500     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(5),
 501     0,                                  255,
 502     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
 503     GADGET_ID_LEVEL_TIMESCORE_TEXT,
 504     &level.score[SC_ZEITBONUS],
 505     "score for each 10 seconds left",   NULL
 506   },
 507   {
 508     ED_SETTINGS_XPOS,                   ED_COUNTER2_YPOS(8),
 509     1,                                  100,
 510     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
 511     GADGET_ID_LEVEL_RANDOM_TEXT,
 512     &random_placement_value,
 513     "random element placement",         "in"
 514   },
 515   {
 516     DX + 5 - SX,                        DY + 3 - SY,
 517     1,                                  100,
 518     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
 519     GADGET_ID_SELECT_LEVEL_TEXT,
 520     &level_nr,
 521     NULL,                               NULL
 522   }
 523 };
 524
 525 static struct
 526 {
 527   int x, y;
 528   int gadget_id;
 529   int size;
 530   char *value;
 531   char *infotext;
 532 } textinput_info[ED_NUM_TEXTINPUT] =
 533 {
 534   {
 535     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(0),
 536     GADGET_ID_LEVEL_NAME,
 537     MAX_LEVEL_NAME_LEN,
 538     level.name,
 539     "Title"
 540   },
 541   {
 542     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(1),
 543     GADGET_ID_LEVEL_AUTHOR,
 544     MAX_LEVEL_AUTHOR_LEN,
 545     level.author,
 546     "Author"
 547   }
 548 };
 549
 550 static struct
 551 {
 552   int xpos, ypos;
 553   int x, y;
 554   int gadget_id;
 555   char *infotext;
 556 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
 557 {
 558   {
 559     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 0 * ED_SCROLLBUTTON_YSIZE,
 560     ED_SCROLL_UP_XPOS,      ED_SCROLL_UP_YPOS,
 561     GADGET_ID_SCROLL_UP,
 562     "scroll level editing area up"
 563   },
 564   {
 565     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 1 * ED_SCROLLBUTTON_YSIZE,
 566     ED_SCROLL_DOWN_XPOS,    ED_SCROLL_DOWN_YPOS,
 567     GADGET_ID_SCROLL_DOWN,
 568     "scroll level editing area down"
 569   },
 570   {
 571     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 2 * ED_SCROLLBUTTON_YSIZE,
 572     ED_SCROLL_LEFT_XPOS,    ED_SCROLL_LEFT_YPOS,
 573     GADGET_ID_SCROLL_LEFT,
 574     "scroll level editing area left"
 575   },
 576   {
 577     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 3 * ED_SCROLLBUTTON_YSIZE,
 578     ED_SCROLL_RIGHT_XPOS,   ED_SCROLL_RIGHT_YPOS,
 579     GADGET_ID_SCROLL_RIGHT,
 580     "scroll level editing area right"
 581   },
 582   {
 583     ED_SCROLLBUTTON2_XPOS,  ED_SCROLLBUTTON2_YPOS + 0 * ED_SCROLLBUTTON2_YSIZE,
 584     ED_SCROLL2_UP_XPOS,     ED_SCROLL2_UP_YPOS,
 585     GADGET_ID_SCROLL_LIST_UP,
 586     "scroll element list up ('Page Up')"
 587   },
 588   {
 589     ED_SCROLLBUTTON2_XPOS,  ED_SCROLLBUTTON2_YPOS + 1 * ED_SCROLLBUTTON2_YSIZE,
 590     ED_SCROLL2_DOWN_XPOS,    ED_SCROLL2_DOWN_YPOS,
 591     GADGET_ID_SCROLL_LIST_DOWN,
 592     "scroll element list down ('Page Down')"
 593   }
 594 };
 595
 596 static struct
 597 {
 598   int xpos, ypos;
 599   int x, y;
 600   int width, height;
 601   int type;
 602   int gadget_id;
 603   char *infotext;
 604 } scrollbar_info[ED_NUM_SCROLLBARS] =
 605 {
 606   {
 607     ED_SCROLLBAR_XPOS,                  ED_SCROLLBAR_YPOS,
 608     SX + ED_SCROLL_HORIZONTAL_XPOS,     SY + ED_SCROLL_HORIZONTAL_YPOS,
 609     ED_SCROLL_HORIZONTAL_XSIZE,         ED_SCROLL_HORIZONTAL_YSIZE,
 610     GD_TYPE_SCROLLBAR_HORIZONTAL,
 611     GADGET_ID_SCROLL_HORIZONTAL,
 612     "scroll level editing area horizontally"
 613   },
 614   {
 615     ED_SCROLLBAR_XPOS,                  ED_SCROLLBAR_YPOS,
 616     SX + ED_SCROLL_VERTICAL_XPOS,       SY + ED_SCROLL_VERTICAL_YPOS,
 617     ED_SCROLL_VERTICAL_XSIZE,           ED_SCROLL_VERTICAL_YSIZE,
 618     GD_TYPE_SCROLLBAR_VERTICAL,
 619     GADGET_ID_SCROLL_VERTICAL,
 620     "scroll level editing area vertically"
 621   },
 622   {
 623     ED_SCROLLBAR2_XPOS,                 ED_SCROLLBAR2_YPOS,
 624     DX + ED_SCROLL2_VERTICAL_XPOS,      DY + ED_SCROLL2_VERTICAL_YPOS,
 625     ED_SCROLL2_VERTICAL_XSIZE,          ED_SCROLL2_VERTICAL_YSIZE,
 626     GD_TYPE_SCROLLBAR_VERTICAL,
 627     GADGET_ID_SCROLL_LIST_VERTICAL,
 628     "scroll element list vertically"
 629   }
 630 };
 631
 632 static struct
 633 {
 634   int x, y;
 635   int gadget_id;
 636   int radio_button_nr;
 637   int *value;
 638   int checked_value;
 639   char *text, *infotext;
 640 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
 641 {
 642   {
 643     ED_SETTINGS_XPOS + 160,             ED_COUNTER2_YPOS(8),
 644     GADGET_ID_RANDOM_PERCENTAGE,
 645     RADIO_NR_RANDOM_ELEMENTS,
 646     &random_placement_method,           RANDOM_USE_PERCENTAGE,
 647     "percentage",                       "use percentage for random elements"
 648   },
 649   {
 650     ED_SETTINGS_XPOS + 340,             ED_COUNTER2_YPOS(8),
 651     GADGET_ID_RANDOM_QUANTITY,
 652     RADIO_NR_RANDOM_ELEMENTS,
 653     &random_placement_method,           RANDOM_USE_QUANTITY,
 654     "quantity",                         "use quantity for random elements"
 655   }
 656 };
 657
 658 static struct
 659 {
 660   int x, y;
 661   int gadget_id;
 662   boolean *value;
 663   char *text, *infotext;
 664 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
 665 {
 666   {
 667     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(6) - MINI_TILEY,
 668     GADGET_ID_DOUBLE_SPEED,
 669     &level.double_speed,
 670     "double speed movement",            "set movement speed of player"
 671   },
 672   {
 673     ED_SETTINGS_XPOS + 340,             ED_COUNTER_YPOS(6) - MINI_TILEY,
 674     GADGET_ID_GRAVITY,
 675     &level.gravity,
 676     "gravity",                          "set level gravity"
 677   },
 678   {
 679     ED_SETTINGS_XPOS,                   ED_COUNTER2_YPOS(9) - MINI_TILEY,
 680     GADGET_ID_RANDOM_RESTRICTED,
 681     &random_placement_background_restricted,
 682     "restrict random placement to",     "set random placement restriction"
 683   },
 684   {
 685     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 686     GADGET_ID_STICK_ELEMENT,
 687     &stick_element_properties_window,
 688     "stick window to edit content",     "stick window to edit content"
 689   },
 690   {
 691     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 692     GADGET_ID_EM_SLIPPERY_GEMS,
 693     &level.em_slippery_gems,
 694     "slip down from certain flat walls","use EM style slipping behaviour"
 695   },
 696   {
 697     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 698     GADGET_ID_CUSTOM_INDESTRUCTIBLE,
 699     &custom_element_properties[0].indestructible,
 700     "indestructible",                   "element cannot be destroyed"
 701   },
 702   {
 703     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(5),
 704     GADGET_ID_CUSTOM_CAN_FALL,
 705     &custom_element_properties[0].can_fall,
 706     "can fall",                         "element can fall down"
 707   },
 708   {
 709     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(6),
 710     GADGET_ID_CUSTOM_SLIPPERY,
 711     &custom_element_properties[0].slippery,
 712     "slippery",                         "other elements can fall down from it"
 713   }
 714 };
 715
 716 /* maximal size of level editor drawing area */
 717 #define MAX_ED_FIELDX           (2 * SCR_FIELDX)
 718 #define MAX_ED_FIELDY           (2 * SCR_FIELDY - 1)
 719
 720 /* actual size of level editor drawing area */
 721 static int ed_fieldx = MAX_ED_FIELDX - 1, ed_fieldy = MAX_ED_FIELDY - 1;
 722
 723 /* actual position of level editor drawing area in level playfield */
 724 static int level_xpos = -1, level_ypos = -1;
 725
 726 #define IN_ED_FIELD(x,y)  ((x)>=0 && (x)<ed_fieldx && (y)>=0 &&(y)<ed_fieldy)
 727
 728 /* drawing elements on the three mouse buttons */
 729 static int new_element1 = EL_WALL;
 730 static int new_element2 = EL_EMPTY;
 731 static int new_element3 = EL_SAND;
 732
 733 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
 734                                 (button) == 2 ? new_element2 : \
 735                                 (button) == 3 ? new_element3 : EL_EMPTY)
 736 #define BUTTON_STEPSIZE(button) ((button) == 1 ? 1 : (button) == 2 ? 5 : 10)
 737
 738 /* forward declaration for internal use */
 739 static void ModifyEditorCounter(int, int);
 740 static void ModifyEditorCounterLimits(int, int, int);
 741 static void DrawDrawingWindow();
 742 static void DrawLevelInfoWindow();
 743 static void DrawPropertiesWindow();
 744 static void CopyLevelToUndoBuffer(int);
 745 static void HandleDrawingAreas(struct GadgetInfo *);
 746 static void HandleCounterButtons(struct GadgetInfo *);
 747 static void HandleTextInputGadgets(struct GadgetInfo *);
 748 static void HandleRadiobuttons(struct GadgetInfo *);
 749 static void HandleCheckbuttons(struct GadgetInfo *);
 750 static void HandleControlButtons(struct GadgetInfo *);
 751 static void HandleDrawingAreaInfo(struct GadgetInfo *);
 752
 753 static struct GadgetInfo *level_editor_gadget[NUM_EDITOR_GADGETS];
 754
 755 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
 756 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
 757 static boolean draw_with_brush = FALSE;
 758 static int properties_element = 0;
 759
 760 static short ElementContent[MAX_ELEMENT_CONTENTS][3][3];
 761 static short FieldBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 762 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 763 static int undo_buffer_position = 0;
 764 static int undo_buffer_steps = 0;
 765
 766 static int edit_mode;
 767
 768 static int counter_xsize = DXSIZE + FONT2_XSIZE - 2 * ED_GADGET_DISTANCE;
 769
 770 int element_shift = 0;
 771
 772 int editor_el_boulderdash[] =
 773 {
 774   EL_CHAR('B'),
 775   EL_CHAR('O'),
 776   EL_CHAR('U'),
 777   EL_CHAR('L'),
 778
 779   EL_CHAR('-'),
 780   EL_CHAR('D'),
 781   EL_CHAR('E'),
 782   EL_CHAR('R'),
 783
 784   EL_CHAR('D'),
 785   EL_CHAR('A'),
 786   EL_CHAR('S'),
 787   EL_CHAR('H'),
 788
 789   EL_PLAYER1,
 790   EL_EMPTY,
 791   EL_SAND,
 792   EL_STEELWALL,
 793
 794   EL_BD_WALL,
 795   EL_BD_MAGIC_WALL,
 796   EL_EXIT_CLOSED,
 797   EL_EXIT_OPEN,
 798
 799   EL_BD_DIAMOND,
 800   EL_BD_BUTTERFLY_UP,
 801   EL_BD_FIREFLY_UP,
 802   EL_BD_ROCK,
 803
 804   EL_BD_BUTTERFLY_LEFT,
 805   EL_BD_FIREFLY_LEFT,
 806   EL_BD_BUTTERFLY_RIGHT,
 807   EL_BD_FIREFLY_RIGHT,
 808
 809   EL_BD_AMOEBA,
 810   EL_BD_BUTTERFLY_DOWN,
 811   EL_BD_FIREFLY_DOWN,
 812   EL_EMPTY,
 813 };
 814 int num_editor_el_boulderdash = SIZEOF_ARRAY_INT(editor_el_boulderdash);
 815
 816 int editor_el_emerald_mine[] =
 817 {
 818   EL_CHAR('E'),
 819   EL_CHAR('M'),
 820   EL_CHAR('E'),
 821   EL_CHAR('-'),
 822
 823   EL_CHAR('R'),
 824   EL_CHAR('A'),
 825   EL_CHAR('L'),
 826   EL_CHAR('D'),
 827
 828   EL_CHAR('M'),
 829   EL_CHAR('I'),
 830   EL_CHAR('N'),
 831   EL_CHAR('E'),
 832
 833   EL_PLAYER1,
 834   EL_PLAYER2,
 835   EL_PLAYER3,
 836   EL_PLAYER4,
 837
 838   EL_PLAYER1,
 839   EL_EMPTY,
 840   EL_SAND,
 841   EL_ROCK,
 842
 843   EL_STEELWALL,
 844   EL_WALL,
 845   EL_WALL_CRUMBLED,
 846   EL_MAGIC_WALL,
 847
 848   EL_EMERALD,
 849   EL_DIAMOND,
 850   EL_NUT,
 851   EL_BOMB,
 852
 853   EL_WALL_EMERALD,
 854   EL_WALL_DIAMOND,
 855   EL_QUICKSAND_EMPTY,
 856   EL_QUICKSAND_FULL,
 857
 858   EL_DYNAMITE,
 859   EL_DYNAMITE_ACTIVE,
 860   EL_EXIT_CLOSED,
 861   EL_EXIT_OPEN,
 862
 863   EL_YAMYAM,
 864   EL_BUG_UP,
 865   EL_SPACESHIP_UP,
 866   EL_ROBOT,
 867
 868   EL_BUG_LEFT,
 869   EL_SPACESHIP_LEFT,
 870   EL_BUG_RIGHT,
 871   EL_SPACESHIP_RIGHT,
 872
 873   EL_ROBOT_WHEEL,
 874   EL_BUG_DOWN,
 875   EL_SPACESHIP_DOWN,
 876   EL_INVISIBLE_WALL,
 877
 878   EL_ACIDPOOL_TOPLEFT,
 879   EL_ACID,
 880   EL_ACIDPOOL_TOPRIGHT,
 881   EL_EMPTY,
 882
 883   EL_ACIDPOOL_BOTTOMLEFT,
 884   EL_ACIDPOOL_BOTTOM,
 885   EL_ACIDPOOL_BOTTOMRIGHT,
 886   EL_EMPTY,
 887
 888   EL_AMOEBA_DROP,
 889   EL_AMOEBA_DEAD,
 890   EL_AMOEBA_WET,
 891   EL_AMOEBA_DRY,
 892
 893   EL_EM_KEY1_FILE,
 894   EL_EM_KEY2_FILE,
 895   EL_EM_KEY3_FILE,
 896   EL_EM_KEY4_FILE,
 897
 898   EL_EM_GATE1,
 899   EL_EM_GATE2,
 900   EL_EM_GATE3,
 901   EL_EM_GATE4,
 902
 903   EL_EM_GATE1_GRAY,
 904   EL_EM_GATE2_GRAY,
 905   EL_EM_GATE3_GRAY,
 906   EL_EM_GATE4_GRAY,
 907 };
 908 int num_editor_el_emerald_mine = SIZEOF_ARRAY_INT(editor_el_emerald_mine);
 909
 910 int editor_el_more[] =
 911 {
 912   EL_CHAR('M'),
 913   EL_CHAR('O'),
 914   EL_CHAR('R'),
 915   EL_CHAR('E'),
 916
 917   EL_KEY1,
 918   EL_KEY2,
 919   EL_KEY3,
 920   EL_KEY4,
 921
 922   EL_GATE1,
 923   EL_GATE2,
 924   EL_GATE3,
 925   EL_GATE4,
 926
 927   EL_GATE1_GRAY,
 928   EL_GATE2_GRAY,
 929   EL_GATE3_GRAY,
 930   EL_GATE4_GRAY,
 931
 932   EL_ARROW_BLUE_LEFT,
 933   EL_ARROW_BLUE_RIGHT,
 934   EL_ARROW_BLUE_UP,
 935   EL_ARROW_BLUE_DOWN,
 936
 937   EL_AMOEBA_FULL,
 938   EL_EMERALD_YELLOW,
 939   EL_EMERALD_RED,
 940   EL_EMERALD_PURPLE,
 941
 942   EL_WALL_BD_DIAMOND,
 943   EL_WALL_EMERALD_YELLOW,
 944   EL_WALL_EMERALD_RED,
 945   EL_WALL_EMERALD_PURPLE,
 946
 947   EL_GAMEOFLIFE,
 948   EL_PACMAN_UP,
 949   EL_TIME_ORB_FULL,
 950   EL_TIME_ORB_EMPTY,
 951
 952   EL_PACMAN_LEFT,
 953   EL_DARK_YAMYAM,
 954   EL_PACMAN_RIGHT,
 955   EL_WALL_GROWING,
 956
 957   EL_BIOMAZE,
 958   EL_PACMAN_DOWN,
 959   EL_LAMP,
 960   EL_LAMP_ACTIVE,
 961
 962   EL_DYNABOMB_NR,
 963   EL_DYNABOMB_SZ,
 964   EL_DYNABOMB_XL,
 965   EL_STONEBLOCK,
 966
 967   EL_MOLE,
 968   EL_PENGUIN,
 969   EL_PIG,
 970   EL_DRAGON,
 971
 972   EL_EMPTY,
 973   EL_MOLE_UP,
 974   EL_EMPTY,
 975   EL_EMPTY,
 976
 977   EL_MOLE_LEFT,
 978   EL_EMPTY,
 979   EL_MOLE_RIGHT,
 980   EL_EMPTY,
 981
 982   EL_EMPTY,
 983   EL_MOLE_DOWN,
 984   EL_BALLOON,
 985   EL_BALLOON_SEND_ANY_DIRECTION,
 986
 987   EL_BALLOON_SEND_LEFT,
 988   EL_BALLOON_SEND_RIGHT,
 989   EL_BALLOON_SEND_UP,
 990   EL_BALLOON_SEND_DOWN,
 991
 992   EL_SATELLITE,
 993   EL_WALL_GROWING_X,
 994   EL_WALL_GROWING_Y,
 995   EL_WALL_GROWING_XY,
 996
 997   EL_INVISIBLE_STEELWALL,
 998   EL_INVISIBLE_WALL,
 999   EL_SPEED_PILL,
1000   EL_BLACK_ORB,
1001
1002   EL_EMC_STEELWALL1,
1003   EL_EMC_WALL_PILLAR_UPPER,
1004   EL_EMC_WALL_PILLAR_MIDDLE,
1005   EL_EMC_WALL_PILLAR_LOWER,
1006
1007   EL_EMC_WALL4,
1008   EL_EMC_WALL5,
1009   EL_EMC_WALL6,
1010   EL_EMC_WALL7,
1011 };
1012 int num_editor_el_more = SIZEOF_ARRAY_INT(editor_el_more);
1013
1014 int editor_el_sokoban[] =
1015 {
1016   EL_CHAR('S'),
1017   EL_CHAR('O'),
1018   EL_CHAR('K'),
1019   EL_CHAR('O'),
1020
1021   EL_CHAR('-'),
1022   EL_CHAR('B'),
1023   EL_CHAR('A'),
1024   EL_CHAR('N'),
1025
1026   EL_SOKOBAN_OBJECT,
1027   EL_SOKOBAN_FIELD_EMPTY,
1028   EL_SOKOBAN_FIELD_FULL,
1029   EL_STEELWALL,
1030 };
1031 int num_editor_el_sokoban = SIZEOF_ARRAY_INT(editor_el_sokoban);
1032
1033 int editor_el_supaplex[] =
1034 {
1035   EL_CHAR('S'),
1036   EL_CHAR('U'),
1037   EL_CHAR('P'),
1038   EL_CHAR('A'),
1039
1040   EL_CHAR('P'),
1041   EL_CHAR('L'),
1042   EL_CHAR('E'),
1043   EL_CHAR('X'),
1044
1045   EL_SP_EMPTY,
1046   EL_SP_ZONK,
1047   EL_SP_BASE,
1048   EL_SP_MURPHY,
1049
1050   EL_SP_INFOTRON,
1051   EL_SP_CHIP_SINGLE,
1052   EL_SP_HARD_GRAY,
1053   EL_SP_EXIT_CLOSED,
1054
1055   EL_SP_DISK_ORANGE,
1056   EL_SP_PORT1_RIGHT,
1057   EL_SP_PORT1_DOWN,
1058   EL_SP_PORT1_LEFT,
1059
1060   EL_SP_PORT1_UP,
1061   EL_SP_PORT2_RIGHT,
1062   EL_SP_PORT2_DOWN,
1063   EL_SP_PORT2_LEFT,
1064
1065   EL_SP_PORT2_UP,
1066   EL_SP_SNIKSNAK,
1067   EL_SP_DISK_YELLOW,
1068   EL_SP_TERMINAL,
1069
1070   EL_SP_DISK_RED,
1071   EL_SP_PORT_Y,
1072   EL_SP_PORT_X,
1073   EL_SP_PORT_XY,
1074
1075   EL_SP_ELECTRON,
1076   EL_SP_BUGGY_BASE,
1077   EL_SP_CHIP_LEFT,
1078   EL_SP_CHIP_RIGHT,
1079
1080   EL_SP_HARD_BASE1,
1081   EL_SP_HARD_GREEN,
1082   EL_SP_HARD_BLUE,
1083   EL_SP_HARD_RED,
1084
1085   EL_SP_HARD_YELLOW,
1086   EL_SP_HARD_BASE2,
1087   EL_SP_HARD_BASE3,
1088   EL_SP_HARD_BASE4,
1089
1090   EL_SP_HARD_BASE5,
1091   EL_SP_HARD_BASE6,
1092   EL_SP_CHIP_UPPER,
1093   EL_SP_CHIP_LOWER,
1094 };
1095 int num_editor_el_supaplex = SIZEOF_ARRAY_INT(editor_el_supaplex);
1096
1097 int editor_el_diamond_caves[] =
1098 {
1099   EL_CHAR('D'),
1100   EL_CHAR('I'),
1101   EL_CHAR('A'),
1102   EL_CHAR('-'),
1103
1104   EL_CHAR('M'),
1105   EL_CHAR('O'),
1106   EL_CHAR('N'),
1107   EL_CHAR('D'),
1108
1109   EL_CHAR('C'),
1110   EL_CHAR('A'),
1111   EL_CHAR('V'),
1112   EL_CHAR('E'),
1113
1114   EL_CHAR('S'),
1115   EL_CHAR(' '),
1116   EL_CHAR('I'),
1117   EL_CHAR('I'),
1118
1119   EL_PEARL,
1120   EL_CRYSTAL,
1121   EL_WALL_PEARL,
1122   EL_WALL_CRYSTAL,
1123
1124   EL_CONVEYOR_BELT1_LEFT,
1125   EL_CONVEYOR_BELT1_MIDDLE,
1126   EL_CONVEYOR_BELT1_RIGHT,
1127   EL_CONVEYOR_BELT1_SWITCH_MIDDLE,
1128
1129   EL_CONVEYOR_BELT2_LEFT,
1130   EL_CONVEYOR_BELT2_MIDDLE,
1131   EL_CONVEYOR_BELT2_RIGHT,
1132   EL_CONVEYOR_BELT2_SWITCH_MIDDLE,
1133
1134   EL_CONVEYOR_BELT3_LEFT,
1135   EL_CONVEYOR_BELT3_MIDDLE,
1136   EL_CONVEYOR_BELT3_RIGHT,
1137   EL_CONVEYOR_BELT3_SWITCH_MIDDLE,
1138
1139   EL_CONVEYOR_BELT4_LEFT,
1140   EL_CONVEYOR_BELT4_MIDDLE,
1141   EL_CONVEYOR_BELT4_RIGHT,
1142   EL_CONVEYOR_BELT4_SWITCH_MIDDLE,
1143
1144   EL_CONVEYOR_BELT1_SWITCH_LEFT,
1145   EL_CONVEYOR_BELT2_SWITCH_LEFT,
1146   EL_CONVEYOR_BELT3_SWITCH_LEFT,
1147   EL_CONVEYOR_BELT4_SWITCH_LEFT,
1148
1149   EL_CONVEYOR_BELT1_SWITCH_RIGHT,
1150   EL_CONVEYOR_BELT2_SWITCH_RIGHT,
1151   EL_CONVEYOR_BELT3_SWITCH_RIGHT,
1152   EL_CONVEYOR_BELT4_SWITCH_RIGHT,
1153
1154   EL_SWITCHGATE_OPEN,
1155   EL_SWITCHGATE_CLOSED,
1156   EL_SWITCHGATE_SWITCH_UP,
1157   EL_ENVELOPE,
1158
1159   EL_TIMEGATE_CLOSED,
1160   EL_TIMEGATE_OPEN,
1161   EL_TIMEGATE_SWITCH,
1162   EL_EMPTY,
1163
1164   EL_LANDMINE,
1165   EL_INVISIBLE_SAND,
1166   EL_STEELWALL_SLANTED,
1167   EL_EMPTY,
1168
1169   EL_SIGN_EXCLAMATION,
1170   EL_SIGN_STOP,
1171   EL_LIGHT_SWITCH,
1172   EL_LIGHT_SWITCH_ACTIVE,
1173
1174   EL_SHIELD_NORMAL,
1175   EL_SHIELD_DEADLY,
1176   EL_EXTRA_TIME,
1177   EL_EMPTY,
1178 };
1179 int num_editor_el_diamond_caves = SIZEOF_ARRAY_INT(editor_el_diamond_caves);
1180
1181 int editor_el_dx_boulderdash[] =
1182 {
1183   EL_CHAR('D'),
1184   EL_CHAR('X'),
1185   EL_CHAR('-'),
1186   EL_CHAR(' '),
1187
1188   EL_CHAR('B'),
1189   EL_CHAR('O'),
1190   EL_CHAR('U'),
1191   EL_CHAR('L'),
1192
1193   EL_CHAR('-'),
1194   EL_CHAR('D'),
1195   EL_CHAR('E'),
1196   EL_CHAR('R'),
1197
1198   EL_CHAR('D'),
1199   EL_CHAR('A'),
1200   EL_CHAR('S'),
1201   EL_CHAR('H'),
1202
1203   EL_SPRING,
1204   EL_TUBE_RIGHT_DOWN,
1205   EL_TUBE_HORIZONTAL_DOWN,
1206   EL_TUBE_LEFT_DOWN,
1207
1208   EL_TUBE_HORIZONTAL,
1209   EL_TUBE_VERTICAL_RIGHT,
1210   EL_TUBE_ALL,
1211   EL_TUBE_VERTICAL_LEFT,
1212
1213   EL_TUBE_VERTICAL,
1214   EL_TUBE_RIGHT_UP,
1215   EL_TUBE_HORIZONTAL_UP,
1216   EL_TUBE_LEFT_UP,
1217
1218   EL_TRAP,
1219   EL_DX_SUPABOMB,
1220   EL_EMPTY,
1221   EL_EMPTY
1222 };
1223 int num_editor_el_dx_boulderdash = SIZEOF_ARRAY_INT(editor_el_dx_boulderdash);
1224
1225 int editor_el_chars[] =
1226 {
1227   EL_CHAR('T'),
1228   EL_CHAR('E'),
1229   EL_CHAR('X'),
1230   EL_CHAR('T'),
1231
1232   EL_CHAR(' '),
1233   EL_CHAR('!'),
1234   EL_CHAR('"'),
1235   EL_CHAR('#'),
1236
1237   EL_CHAR('$'),
1238   EL_CHAR('%'),
1239   EL_CHAR('&'),
1240   EL_CHAR('\''),
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('0'),
1253   EL_CHAR('1'),
1254   EL_CHAR('2'),
1255   EL_CHAR('3'),
1256
1257   EL_CHAR('4'),
1258   EL_CHAR('5'),
1259   EL_CHAR('6'),
1260   EL_CHAR('7'),
1261
1262   EL_CHAR('8'),
1263   EL_CHAR('9'),
1264   EL_CHAR(':'),
1265   EL_CHAR(';'),
1266
1267   EL_CHAR('<'),
1268   EL_CHAR('='),
1269   EL_CHAR('>'),
1270   EL_CHAR('?'),
1271
1272   EL_CHAR('@'),
1273   EL_CHAR('A'),
1274   EL_CHAR('B'),
1275   EL_CHAR('C'),
1276
1277   EL_CHAR('D'),
1278   EL_CHAR('E'),
1279   EL_CHAR('F'),
1280   EL_CHAR('G'),
1281
1282   EL_CHAR('H'),
1283   EL_CHAR('I'),
1284   EL_CHAR('J'),
1285   EL_CHAR('K'),
1286
1287   EL_CHAR('L'),
1288   EL_CHAR('M'),
1289   EL_CHAR('N'),
1290   EL_CHAR('O'),
1291
1292   EL_CHAR('P'),
1293   EL_CHAR('Q'),
1294   EL_CHAR('R'),
1295   EL_CHAR('S'),
1296
1297   EL_CHAR('T'),
1298   EL_CHAR('U'),
1299   EL_CHAR('V'),
1300   EL_CHAR('W'),
1301
1302   EL_CHAR('X'),
1303   EL_CHAR('Y'),
1304   EL_CHAR('Z'),
1305   EL_CHAR('Ä'),
1306
1307   EL_CHAR('Ö'),
1308   EL_CHAR('Ü'),
1309   EL_CHAR('^'),
1310   EL_CHAR('_'),
1311
1312   EL_CHAR(' '),
1313   EL_CHAR('°'),
1314   EL_CHAR('´'),
1315   EL_CHAR('|')
1316 };
1317 int num_editor_el_chars = SIZEOF_ARRAY_INT(editor_el_chars);
1318
1319 int editor_el_custom[] =
1320 {
1321   EL_CHAR('C'),
1322   EL_CHAR('U'),
1323   EL_CHAR('S'),
1324   EL_CHAR('-'),
1325
1326   EL_CHAR('T'),
1327   EL_CHAR('O'),
1328   EL_CHAR('M'),
1329   EL_CHAR(' '),
1330
1331   EL_CHAR('E'),
1332   EL_CHAR('L'),
1333   EL_CHAR('E'),
1334   EL_CHAR('M'),
1335
1336   EL_CHAR('E'),
1337   EL_CHAR('N'),
1338   EL_CHAR('T'),
1339   EL_CHAR('S'),
1340
1341   EL_CUSTOM_START + 0,
1342   EL_CUSTOM_START + 1,
1343   EL_CUSTOM_START + 2,
1344   EL_CUSTOM_START + 3,
1345
1346   EL_CUSTOM_START + 4,
1347   EL_CUSTOM_START + 5,
1348   EL_CUSTOM_START + 6,
1349   EL_CUSTOM_START + 7,
1350
1351   EL_CUSTOM_START + 8,
1352   EL_CUSTOM_START + 9,
1353   EL_CUSTOM_START + 10,
1354   EL_CUSTOM_START + 11,
1355
1356   EL_CUSTOM_START + 12,
1357   EL_CUSTOM_START + 13,
1358   EL_CUSTOM_START + 14,
1359   EL_CUSTOM_START + 15,
1360
1361   EL_CUSTOM_START + 16,
1362   EL_CUSTOM_START + 17,
1363   EL_CUSTOM_START + 18,
1364   EL_CUSTOM_START + 19,
1365
1366   EL_CUSTOM_START + 20,
1367   EL_CUSTOM_START + 21,
1368   EL_CUSTOM_START + 22,
1369   EL_CUSTOM_START + 23,
1370
1371   EL_CUSTOM_START + 24,
1372   EL_CUSTOM_START + 25,
1373   EL_CUSTOM_START + 26,
1374   EL_CUSTOM_START + 27,
1375
1376   EL_CUSTOM_START + 28,
1377   EL_CUSTOM_START + 29,
1378   EL_CUSTOM_START + 30,
1379   EL_CUSTOM_START + 31,
1380
1381   EL_CUSTOM_START + 32,
1382   EL_CUSTOM_START + 33,
1383   EL_CUSTOM_START + 34,
1384   EL_CUSTOM_START + 35,
1385
1386   EL_CUSTOM_START + 36,
1387   EL_CUSTOM_START + 37,
1388   EL_CUSTOM_START + 38,
1389   EL_CUSTOM_START + 39,
1390
1391   EL_CUSTOM_START + 40,
1392   EL_CUSTOM_START + 41,
1393   EL_CUSTOM_START + 42,
1394   EL_CUSTOM_START + 43,
1395
1396   EL_CUSTOM_START + 44,
1397   EL_CUSTOM_START + 45,
1398   EL_CUSTOM_START + 46,
1399   EL_CUSTOM_START + 47,
1400
1401   EL_CUSTOM_START + 48,
1402   EL_CUSTOM_START + 49,
1403   EL_CUSTOM_START + 50,
1404   EL_CUSTOM_START + 51,
1405
1406   EL_CUSTOM_START + 52,
1407   EL_CUSTOM_START + 53,
1408   EL_CUSTOM_START + 54,
1409   EL_CUSTOM_START + 55,
1410
1411   EL_CUSTOM_START + 56,
1412   EL_CUSTOM_START + 57,
1413   EL_CUSTOM_START + 58,
1414   EL_CUSTOM_START + 59,
1415
1416   EL_CUSTOM_START + 60,
1417   EL_CUSTOM_START + 61,
1418   EL_CUSTOM_START + 62,
1419   EL_CUSTOM_START + 63,
1420
1421   EL_CUSTOM_START + 64,
1422   EL_CUSTOM_START + 65,
1423   EL_CUSTOM_START + 66,
1424   EL_CUSTOM_START + 67,
1425
1426   EL_CUSTOM_START + 68,
1427   EL_CUSTOM_START + 69,
1428   EL_CUSTOM_START + 70,
1429   EL_CUSTOM_START + 71,
1430
1431   EL_CUSTOM_START + 72,
1432   EL_CUSTOM_START + 73,
1433   EL_CUSTOM_START + 74,
1434   EL_CUSTOM_START + 75,
1435
1436   EL_CUSTOM_START + 76,
1437   EL_CUSTOM_START + 77,
1438   EL_CUSTOM_START + 78,
1439   EL_CUSTOM_START + 79,
1440
1441   EL_CUSTOM_START + 80,
1442   EL_CUSTOM_START + 81,
1443   EL_CUSTOM_START + 82,
1444   EL_CUSTOM_START + 83,
1445
1446   EL_CUSTOM_START + 84,
1447   EL_CUSTOM_START + 85,
1448   EL_CUSTOM_START + 86,
1449   EL_CUSTOM_START + 87,
1450
1451   EL_CUSTOM_START + 88,
1452   EL_CUSTOM_START + 89,
1453   EL_CUSTOM_START + 90,
1454   EL_CUSTOM_START + 91,
1455
1456   EL_CUSTOM_START + 92,
1457   EL_CUSTOM_START + 93,
1458   EL_CUSTOM_START + 94,
1459   EL_CUSTOM_START + 95,
1460
1461   EL_CUSTOM_START + 96,
1462   EL_CUSTOM_START + 97,
1463   EL_CUSTOM_START + 98,
1464   EL_CUSTOM_START + 99,
1465
1466   EL_CUSTOM_START + 100,
1467   EL_CUSTOM_START + 101,
1468   EL_CUSTOM_START + 102,
1469   EL_CUSTOM_START + 103,
1470
1471   EL_CUSTOM_START + 104,
1472   EL_CUSTOM_START + 105,
1473   EL_CUSTOM_START + 106,
1474   EL_CUSTOM_START + 107,
1475
1476   EL_CUSTOM_START + 108,
1477   EL_CUSTOM_START + 109,
1478   EL_CUSTOM_START + 110,
1479   EL_CUSTOM_START + 111,
1480
1481   EL_CUSTOM_START + 112,
1482   EL_CUSTOM_START + 113,
1483   EL_CUSTOM_START + 114,
1484   EL_CUSTOM_START + 115,
1485
1486   EL_CUSTOM_START + 116,
1487   EL_CUSTOM_START + 117,
1488   EL_CUSTOM_START + 118,
1489   EL_CUSTOM_START + 119,
1490
1491   EL_CUSTOM_START + 120,
1492   EL_CUSTOM_START + 121,
1493   EL_CUSTOM_START + 122,
1494   EL_CUSTOM_START + 123,
1495
1496   EL_CUSTOM_START + 124,
1497   EL_CUSTOM_START + 125,
1498   EL_CUSTOM_START + 126,
1499   EL_CUSTOM_START + 127
1500 };
1501 int num_editor_el_custom = SIZEOF_ARRAY_INT(editor_el_custom);
1502
1503 int *editor_elements = NULL;    /* dynamically allocated */
1504 int num_editor_elements = 0;    /* dynamically determined */
1505
1506 struct
1507 {
1508   boolean *setup_value;
1509   int *element_list;
1510   int *element_list_size;
1511
1512   boolean last_setup_value;
1513 }
1514 editor_elements_info[] =
1515 {
1516   { &setup.editor.el_boulderdash,       editor_el_boulderdash,
1517     &num_editor_el_boulderdash                                          },
1518   { &setup.editor.el_emerald_mine,      editor_el_emerald_mine,
1519     &num_editor_el_emerald_mine                                         },
1520   { &setup.editor.el_more,              editor_el_more,
1521     &num_editor_el_more                                                 },
1522   { &setup.editor.el_sokoban,           editor_el_sokoban,
1523     &num_editor_el_sokoban                                              },
1524   { &setup.editor.el_supaplex,          editor_el_supaplex,
1525     &num_editor_el_supaplex                                             },
1526   { &setup.editor.el_diamond_caves,     editor_el_diamond_caves,
1527     &num_editor_el_diamond_caves                                        },
1528   { &setup.editor.el_dx_boulderdash,    editor_el_dx_boulderdash,
1529     &num_editor_el_dx_boulderdash                                       },
1530   { &setup.editor.el_chars,             editor_el_chars,
1531     &num_editor_el_chars                                                },
1532   { &setup.editor.el_custom,            editor_el_custom,
1533     &num_editor_el_custom                                               },
1534   { NULL,                               NULL,
1535     NULL                                                                }
1536 };
1537
1538 static void ReinitializeElementList()
1539 {
1540   int pos = 0;
1541   int i, j;
1542
1543   if (editor_elements != NULL)
1544     free(editor_elements);
1545
1546   num_editor_elements = 0;
1547
1548   /* determine size of element list */
1549   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1550     if (*editor_elements_info[i].setup_value)
1551       num_editor_elements += *editor_elements_info[i].element_list_size;
1552
1553   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
1554   {
1555     /* workaround: offer at least as many elements as element buttons exist */
1556     int list_nr = 1;    /* see above: editor_elements_info for Emerald Mine */
1557
1558     *editor_elements_info[list_nr].setup_value = TRUE;
1559     num_editor_elements += *editor_elements_info[list_nr].element_list_size;
1560   }
1561
1562   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
1563
1564   /* fill element list */
1565   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1566     if (*editor_elements_info[i].setup_value)
1567       for (j=0; j<*editor_elements_info[i].element_list_size; j++)
1568         editor_elements[pos++] = editor_elements_info[i].element_list[j];
1569 }
1570
1571 static void ReinitializeElementListButtons()
1572 {
1573   static boolean initialization_needed = TRUE;
1574   int i;
1575
1576   if (!initialization_needed)   /* check if editor element setup has changed */
1577     for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1578       if (editor_elements_info[i].last_setup_value !=
1579           *editor_elements_info[i].setup_value)
1580         initialization_needed = TRUE;
1581
1582   if (!initialization_needed)
1583     return;
1584
1585   FreeLevelEditorGadgets();
1586   CreateLevelEditorGadgets();
1587
1588   /* store current setup values for next invocation of this function */
1589   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1590     editor_elements_info[i].last_setup_value =
1591       *editor_elements_info[i].setup_value;
1592
1593   initialization_needed = FALSE;
1594 }
1595
1596 static char *getElementInfoText(int element)
1597 {
1598   char *info_text = NULL;
1599
1600   if (element < NUM_FILE_ELEMENTS)
1601   {
1602     if (element_info[element].custom_description != NULL)
1603       info_text = element_info[element].custom_description;
1604     else if (element_info[element].editor_description != NULL)
1605       info_text = element_info[element].editor_description;
1606   }
1607
1608   if (info_text == NULL)
1609   {
1610     info_text = "unknown";
1611
1612     Error(ERR_WARN, "no element description for element %d", element);
1613   }
1614
1615   return info_text;
1616 }
1617
1618 static void ScrollMiniLevel(int from_x, int from_y, int scroll)
1619 {
1620   int x,y;
1621   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
1622   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
1623
1624   BlitBitmap(drawto, drawto,
1625              SX + (dx == -1 ? MINI_TILEX : 0),
1626              SY + (dy == -1 ? MINI_TILEY : 0),
1627              (ed_fieldx * MINI_TILEX) - (dx != 0 ? MINI_TILEX : 0),
1628              (ed_fieldy * MINI_TILEY) - (dy != 0 ? MINI_TILEY : 0),
1629              SX + (dx == +1 ? MINI_TILEX : 0),
1630              SY + (dy == +1 ? MINI_TILEY : 0));
1631   if (dx)
1632   {
1633     x = (dx == 1 ? 0 : ed_fieldx - 1);
1634     for(y=0; y<ed_fieldy; y++)
1635       DrawMiniElementOrWall(x, y, from_x, from_y);
1636   }
1637   else if (dy)
1638   {
1639     y = (dy == 1 ? 0 : ed_fieldy - 1);
1640     for(x=0; x<ed_fieldx; x++)
1641       DrawMiniElementOrWall(x, y, from_x, from_y);
1642   }
1643
1644   redraw_mask |= REDRAW_FIELD;
1645   BackToFront();
1646 }
1647
1648 static void CreateControlButtons()
1649 {
1650   Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
1651   struct GadgetInfo *gi;
1652   unsigned long event_mask;
1653   int i;
1654
1655   /* create toolbox buttons */
1656   for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
1657   {
1658     int id = i;
1659     int width, height;
1660     int gd_xoffset, gd_yoffset;
1661     int gd_x1, gd_x2, gd_y1, gd_y2;
1662     int button_type;
1663     int radio_button_nr;
1664     boolean checked;
1665
1666     if (id == GADGET_ID_SINGLE_ITEMS ||
1667         id == GADGET_ID_CONNECTED_ITEMS ||
1668         id == GADGET_ID_LINE ||
1669         id == GADGET_ID_ARC ||
1670         id == GADGET_ID_TEXT ||
1671         id == GADGET_ID_RECTANGLE ||
1672         id == GADGET_ID_FILLED_BOX ||
1673         id == GADGET_ID_FLOOD_FILL ||
1674         id == GADGET_ID_GRAB_BRUSH ||
1675         id == GADGET_ID_PICK_ELEMENT)
1676     {
1677       button_type = GD_TYPE_RADIO_BUTTON;
1678       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
1679       checked = (id == drawing_function ? TRUE : FALSE);
1680       event_mask = GD_EVENT_PRESSED;
1681     }
1682     else
1683     {
1684       button_type = GD_TYPE_NORMAL_BUTTON;
1685       radio_button_nr = RADIO_NR_NONE;
1686       checked = FALSE;
1687
1688       if (id == GADGET_ID_WRAP_LEFT ||
1689           id == GADGET_ID_WRAP_RIGHT ||
1690           id == GADGET_ID_WRAP_UP ||
1691           id == GADGET_ID_WRAP_DOWN)
1692         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
1693       else
1694         event_mask = GD_EVENT_RELEASED;
1695     }
1696
1697     if (id < ED_NUM_CTRL1_BUTTONS)
1698     {
1699       int x = i % ED_CTRL1_BUTTONS_HORIZ;
1700       int y = i / ED_CTRL1_BUTTONS_HORIZ;
1701
1702       gd_xoffset = ED_CTRL1_BUTTONS_XPOS + x * ED_CTRL1_BUTTON_XSIZE;
1703       gd_yoffset = ED_CTRL1_BUTTONS_YPOS + y * ED_CTRL1_BUTTON_YSIZE;
1704       width = ED_CTRL1_BUTTON_XSIZE;
1705       height = ED_CTRL1_BUTTON_YSIZE;
1706     }
1707     else
1708     {
1709       int x = (i - ED_NUM_CTRL1_BUTTONS) % ED_CTRL2_BUTTONS_HORIZ;
1710       int y = (i - ED_NUM_CTRL1_BUTTONS) / ED_CTRL2_BUTTONS_HORIZ;
1711
1712       gd_xoffset = ED_CTRL2_BUTTONS_XPOS + x * ED_CTRL2_BUTTON_XSIZE;
1713       gd_yoffset = ED_CTRL2_BUTTONS_YPOS + y * ED_CTRL2_BUTTON_YSIZE;
1714       width = ED_CTRL2_BUTTON_XSIZE;
1715       height = ED_CTRL2_BUTTON_YSIZE;
1716     }
1717
1718     gd_x1 = DOOR_GFX_PAGEX8 + gd_xoffset;
1719     gd_x2 = DOOR_GFX_PAGEX7 + gd_xoffset;
1720     gd_y1  = DOOR_GFX_PAGEY1 + ED_CTRL_BUTTONS_GFX_YPOS + gd_yoffset;
1721     gd_y2  = DOOR_GFX_PAGEY1 + ED_CTRL_BUTTONS_ALT_GFX_YPOS + gd_yoffset;
1722
1723     gi = CreateGadget(GDI_CUSTOM_ID, id,
1724                       GDI_CUSTOM_TYPE_ID, i,
1725                       GDI_INFO_TEXT, control_info[i].text,
1726                       GDI_X, EX + gd_xoffset,
1727                       GDI_Y, EY + gd_yoffset,
1728                       GDI_WIDTH, width,
1729                       GDI_HEIGHT, height,
1730                       GDI_TYPE, button_type,
1731                       GDI_STATE, GD_BUTTON_UNPRESSED,
1732                       GDI_RADIO_NR, radio_button_nr,
1733                       GDI_CHECKED, checked,
1734                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
1735                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y1,
1736                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y2,
1737                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
1738                       GDI_EVENT_MASK, event_mask,
1739                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1740                       GDI_CALLBACK_ACTION, HandleControlButtons,
1741                       GDI_END);
1742
1743     if (gi == NULL)
1744       Error(ERR_EXIT, "cannot create gadget");
1745
1746     level_editor_gadget[id] = gi;
1747   }
1748
1749   /* create buttons for scrolling of drawing area and element list */
1750   for (i=0; i<ED_NUM_SCROLLBUTTONS; i++)
1751   {
1752     int id = scrollbutton_info[i].gadget_id;
1753     int x, y, width, height;
1754     int gd_x1, gd_x2, gd_y1, gd_y2;
1755
1756     x = scrollbutton_info[i].x;
1757     y = scrollbutton_info[i].y;
1758
1759     event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
1760
1761     if (id == GADGET_ID_SCROLL_LIST_UP ||
1762         id == GADGET_ID_SCROLL_LIST_DOWN)
1763     {
1764       x += DX;
1765       y += DY;
1766       width = ED_SCROLLBUTTON2_XSIZE;
1767       height = ED_SCROLLBUTTON2_YSIZE;
1768       gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[i].xpos;
1769       gd_y1 = DOOR_GFX_PAGEY1 + scrollbutton_info[i].ypos;
1770       gd_x2 = gd_x1 - ED_SCROLLBUTTON2_XSIZE;
1771       gd_y2 = gd_y1;
1772     }
1773     else
1774     {
1775       x += SX;
1776       y += SY;
1777       width = ED_SCROLLBUTTON_XSIZE;
1778       height = ED_SCROLLBUTTON_YSIZE;
1779       gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[i].xpos;
1780       gd_y1 = DOOR_GFX_PAGEY1 + scrollbutton_info[i].ypos;
1781       gd_x2 = gd_x1 - ED_SCROLLBUTTON_XSIZE;
1782       gd_y2 = gd_y1;
1783     }
1784
1785     gi = CreateGadget(GDI_CUSTOM_ID, id,
1786                       GDI_CUSTOM_TYPE_ID, i,
1787                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
1788                       GDI_X, x,
1789                       GDI_Y, y,
1790                       GDI_WIDTH, width,
1791                       GDI_HEIGHT, height,
1792                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
1793                       GDI_STATE, GD_BUTTON_UNPRESSED,
1794                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
1795                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
1796                       GDI_EVENT_MASK, event_mask,
1797                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1798                       GDI_CALLBACK_ACTION, HandleControlButtons,
1799                       GDI_END);
1800
1801     if (gi == NULL)
1802       Error(ERR_EXIT, "cannot create gadget");
1803
1804     level_editor_gadget[id] = gi;
1805   }
1806
1807   /* create buttons for element list */
1808   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
1809   {
1810     Bitmap *deco_bitmap;
1811     int deco_x, deco_y, deco_xpos, deco_ypos;
1812     int gd_xoffset, gd_yoffset;
1813     int gd_x1, gd_x2, gd_y;
1814     int x = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
1815     int y = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
1816     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
1817     int element = editor_elements[i];
1818
1819     event_mask = GD_EVENT_RELEASED;
1820
1821     gd_xoffset = ED_ELEMENTLIST_XPOS + x * ED_ELEMENTLIST_XSIZE;
1822     gd_yoffset = ED_ELEMENTLIST_YPOS + y * ED_ELEMENTLIST_YSIZE;
1823
1824     gd_x1 = DOOR_GFX_PAGEX6 + ED_ELEMENTLIST_XPOS + ED_ELEMENTLIST_XSIZE;
1825     gd_x2 = DOOR_GFX_PAGEX6 + ED_ELEMENTLIST_XPOS;
1826     gd_y  = DOOR_GFX_PAGEY1 + ED_ELEMENTLIST_YPOS;
1827
1828     getMiniGraphicSource(el2edimg(element), &deco_bitmap, &deco_x, &deco_y);
1829     deco_xpos = (ED_ELEMENTLIST_XSIZE - MINI_TILEX) / 2;
1830     deco_ypos = (ED_ELEMENTLIST_YSIZE - MINI_TILEY) / 2;
1831
1832     gi = CreateGadget(GDI_CUSTOM_ID, id,
1833                       GDI_CUSTOM_TYPE_ID, i,
1834                       GDI_INFO_TEXT, getElementInfoText(element),
1835                       GDI_X, DX + gd_xoffset,
1836                       GDI_Y, DY + gd_yoffset,
1837                       GDI_WIDTH, ED_ELEMENTLIST_XSIZE,
1838                       GDI_HEIGHT, ED_ELEMENTLIST_YSIZE,
1839                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
1840                       GDI_STATE, GD_BUTTON_UNPRESSED,
1841                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
1842                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
1843                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
1844                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
1845                       GDI_DECORATION_SIZE, MINI_TILEX, MINI_TILEY,
1846                       GDI_DECORATION_SHIFTING, 1, 1,
1847                       GDI_EVENT_MASK, event_mask,
1848                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1849                       GDI_CALLBACK_ACTION, HandleControlButtons,
1850                       GDI_END);
1851
1852     if (gi == NULL)
1853       Error(ERR_EXIT, "cannot create gadget");
1854
1855     level_editor_gadget[id] = gi;
1856   }
1857 }
1858
1859 static void CreateCounterButtons()
1860 {
1861   int i;
1862
1863   for (i=0; i<ED_NUM_COUNTERBUTTONS; i++)
1864   {
1865     int j;
1866     int xpos = SX + counterbutton_info[i].x;    /* xpos of down count button */
1867     int ypos = SY + counterbutton_info[i].y;
1868
1869     for (j=0; j<2; j++)
1870     {
1871       Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
1872       struct GadgetInfo *gi;
1873       int id = (j == 0 ?
1874                 counterbutton_info[i].gadget_id_down :
1875                 counterbutton_info[i].gadget_id_up);
1876       int gd_xoffset;
1877       int gd_x, gd_x1, gd_x2, gd_y;
1878       int x_size, y_size;
1879       unsigned long event_mask;
1880       char infotext[MAX_INFOTEXT_LEN + 1];
1881
1882       event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
1883
1884       if (i == ED_COUNTER_ID_SELECT_LEVEL)
1885       {
1886         int sid = (j == 0 ?
1887                    ED_SCROLLBUTTON_ID_AREA_LEFT :
1888                    ED_SCROLLBUTTON_ID_AREA_RIGHT);
1889
1890         event_mask |= GD_EVENT_RELEASED;
1891
1892         if (j == 1)
1893           xpos += 2 * ED_GADGET_DISTANCE;
1894         ypos += ED_GADGET_DISTANCE;
1895
1896         gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[sid].xpos;
1897         gd_x2 = gd_x1 - ED_SCROLLBUTTON_XSIZE;
1898         gd_y  = DOOR_GFX_PAGEY1 + scrollbutton_info[sid].ypos;
1899         x_size = ED_SCROLLBUTTON_XSIZE;
1900         y_size = ED_SCROLLBUTTON_YSIZE;
1901       }
1902       else
1903       {
1904         gd_xoffset = (j == 0 ? ED_BUTTON_MINUS_XPOS : ED_BUTTON_PLUS_XPOS);
1905         gd_x1 = DOOR_GFX_PAGEX4 + gd_xoffset;
1906         gd_x2 = DOOR_GFX_PAGEX3 + gd_xoffset;
1907         gd_y  = DOOR_GFX_PAGEY1 + ED_BUTTON_COUNT_YPOS;
1908         x_size = ED_BUTTON_COUNT_XSIZE;
1909         y_size = ED_BUTTON_COUNT_YSIZE;
1910       }
1911
1912       sprintf(infotext, "%s counter value by 1, 5 or 10",
1913               (j == 0 ? "decrease" : "increase"));
1914
1915       gi = CreateGadget(GDI_CUSTOM_ID, id,
1916                         GDI_CUSTOM_TYPE_ID, i,
1917                         GDI_INFO_TEXT, infotext,
1918                         GDI_X, xpos,
1919                         GDI_Y, ypos,
1920                         GDI_WIDTH, x_size,
1921                         GDI_HEIGHT, y_size,
1922                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
1923                         GDI_STATE, GD_BUTTON_UNPRESSED,
1924                         GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
1925                         GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
1926                         GDI_EVENT_MASK, event_mask,
1927                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1928                         GDI_CALLBACK_ACTION, HandleCounterButtons,
1929                         GDI_END);
1930
1931       if (gi == NULL)
1932         Error(ERR_EXIT, "cannot create gadget");
1933
1934       level_editor_gadget[id] = gi;
1935       xpos += gi->width + ED_GADGET_DISTANCE;   /* xpos of text count button */
1936
1937       if (j == 0)
1938       {
1939         int font_type = FC_YELLOW;
1940         int gd_width = ED_WIN_COUNT_XSIZE;
1941
1942         id = counterbutton_info[i].gadget_id_text;
1943         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
1944
1945         if (i == ED_COUNTER_ID_SELECT_LEVEL)
1946         {
1947           font_type = FC_SPECIAL3;
1948
1949           xpos += 2 * ED_GADGET_DISTANCE;
1950           ypos -= ED_GADGET_DISTANCE;
1951
1952           gd_x = DOOR_GFX_PAGEX6 + ED_WIN_COUNT2_XPOS;
1953           gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT2_YPOS;
1954           gd_width = ED_WIN_COUNT2_XSIZE;
1955         }
1956         else
1957         {
1958           gd_x = DOOR_GFX_PAGEX4 + ED_WIN_COUNT_XPOS;
1959           gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT_YPOS;
1960         }
1961
1962         gi = CreateGadget(GDI_CUSTOM_ID, id,
1963                           GDI_CUSTOM_TYPE_ID, i,
1964                           GDI_INFO_TEXT, "enter counter value",
1965                           GDI_X, xpos,
1966                           GDI_Y, ypos,
1967                           GDI_TYPE, GD_TYPE_TEXTINPUT_NUMERIC,
1968                           GDI_NUMBER_VALUE, 0,
1969                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
1970                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
1971                           GDI_TEXT_SIZE, 3,
1972                           GDI_TEXT_FONT, font_type,
1973                           GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
1974                           GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
1975                           GDI_BORDER_SIZE, ED_BORDER_SIZE,
1976                           GDI_TEXTINPUT_DESIGN_WIDTH, gd_width,
1977                           GDI_EVENT_MASK, event_mask,
1978                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1979                           GDI_CALLBACK_ACTION, HandleCounterButtons,
1980                           GDI_END);
1981
1982         if (gi == NULL)
1983           Error(ERR_EXIT, "cannot create gadget");
1984
1985         level_editor_gadget[id] = gi;
1986         xpos += gi->width + ED_GADGET_DISTANCE; /* xpos of up count button */
1987       }
1988     }
1989   }
1990 }
1991
1992 static void CreateDrawingAreas()
1993 {
1994   struct GadgetInfo *gi;
1995   unsigned long event_mask;
1996   int id;
1997   int i;
1998
1999   event_mask =
2000     GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
2001     GD_EVENT_OFF_BORDERS;
2002
2003   /* one for the level drawing area ... */
2004   id = GADGET_ID_DRAWING_LEVEL;
2005   gi = CreateGadget(GDI_CUSTOM_ID, id,
2006                     GDI_X, SX,
2007                     GDI_Y, SY,
2008                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2009                     GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
2010                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2011                     GDI_EVENT_MASK, event_mask,
2012                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2013                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2014                     GDI_END);
2015
2016   if (gi == NULL)
2017     Error(ERR_EXIT, "cannot create gadget");
2018
2019   level_editor_gadget[id] = gi;
2020
2021   /* ... up to eight areas for element content ... */
2022   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
2023   {
2024     int gx = SX + ED_AREA_ELEM_CONTENT_XPOS + 5 * (i % 4) * MINI_TILEX;
2025     int gy = SX + ED_AREA_ELEM_CONTENT_YPOS + 6 * (i / 4) * MINI_TILEY;
2026
2027     id = GADGET_ID_ELEM_CONTENT_0 + i;
2028     gi = CreateGadget(GDI_CUSTOM_ID, id,
2029                       GDI_CUSTOM_TYPE_ID, i,
2030                       GDI_X, gx,
2031                       GDI_Y, gy,
2032                       GDI_WIDTH, 3 * MINI_TILEX,
2033                       GDI_HEIGHT, 3 * MINI_TILEY,
2034                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
2035                       GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2036                       GDI_EVENT_MASK, event_mask,
2037                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2038                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
2039                       GDI_END);
2040
2041     if (gi == NULL)
2042       Error(ERR_EXIT, "cannot create gadget");
2043
2044     level_editor_gadget[id] = gi;
2045   }
2046
2047   /* ... one for the amoeba content */
2048   id = GADGET_ID_AMOEBA_CONTENT;
2049   gi = CreateGadget(GDI_CUSTOM_ID, id,
2050                     GDI_X, SX + ED_AREA_ELEM_CONTENT_XPOS,
2051                     GDI_Y, SY + ED_AREA_ELEM_CONTENT_YPOS,
2052                     GDI_WIDTH, MINI_TILEX,
2053                     GDI_HEIGHT, MINI_TILEY,
2054                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2055                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2056                     GDI_EVENT_MASK, event_mask,
2057                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2058                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2059                     GDI_END);
2060
2061   if (gi == NULL)
2062     Error(ERR_EXIT, "cannot create gadget");
2063
2064   level_editor_gadget[id] = gi;
2065
2066   /* ... and one for random placement background restrictions */
2067
2068   id = GADGET_ID_RANDOM_BACKGROUND;
2069   gi = CreateGadget(GDI_CUSTOM_ID, id,
2070                     GDI_X, SX + ED_AREA_RANDOM_BACKGROUND_XPOS,
2071                     GDI_Y, SY + ED_AREA_RANDOM_BACKGROUND_YPOS,
2072                     GDI_WIDTH, MINI_TILEX,
2073                     GDI_HEIGHT, MINI_TILEY,
2074                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2075                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2076                     GDI_EVENT_MASK, event_mask,
2077                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2078                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2079                     GDI_END);
2080
2081   if (gi == NULL)
2082     Error(ERR_EXIT, "cannot create gadget");
2083
2084   level_editor_gadget[id] = gi;
2085 }
2086
2087 static void CreateTextInputGadgets()
2088 {
2089   int i;
2090
2091   for (i=0; i<ED_NUM_TEXTINPUT; i++)
2092   {
2093     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2094     int gd_x, gd_y;
2095     struct GadgetInfo *gi;
2096     unsigned long event_mask;
2097     char infotext[1024];
2098     int id = textinput_info[i].gadget_id;
2099
2100     event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
2101
2102     gd_x = DOOR_GFX_PAGEX4 + ED_WIN_COUNT_XPOS;
2103     gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT_YPOS;
2104
2105     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
2106     infotext[MAX_INFOTEXT_LEN] = '\0';
2107
2108     gi = CreateGadget(GDI_CUSTOM_ID, id,
2109                       GDI_CUSTOM_TYPE_ID, i,
2110                       GDI_INFO_TEXT, infotext,
2111                       GDI_X, SX + textinput_info[i].x,
2112                       GDI_Y, SY + textinput_info[i].y,
2113                       GDI_TYPE, GD_TYPE_TEXTINPUT_ALPHANUMERIC,
2114                       GDI_TEXT_VALUE, textinput_info[i].value,
2115                       GDI_TEXT_SIZE, textinput_info[i].size,
2116                       GDI_TEXT_FONT, FC_YELLOW,
2117                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
2118                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
2119                       GDI_BORDER_SIZE, ED_BORDER_SIZE,
2120                       GDI_TEXTINPUT_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
2121                       GDI_EVENT_MASK, event_mask,
2122                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2123                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
2124                       GDI_END);
2125
2126     if (gi == NULL)
2127       Error(ERR_EXIT, "cannot create gadget");
2128
2129     level_editor_gadget[id] = gi;
2130   }
2131 }
2132
2133 static void CreateScrollbarGadgets()
2134 {
2135   int i;
2136
2137   for (i=0; i<ED_NUM_SCROLLBARS; i++)
2138   {
2139     int id = scrollbar_info[i].gadget_id;
2140     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2141     int gd_x1, gd_x2, gd_y1, gd_y2;
2142     struct GadgetInfo *gi;
2143     int items_max, items_visible, item_position;
2144     unsigned long event_mask;
2145
2146     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
2147     {
2148       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
2149       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
2150       item_position = 0;
2151     }
2152     else        /* drawing area scrollbars */
2153     {
2154       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
2155       {
2156         items_max = MAX(lev_fieldx + 2, ed_fieldx);
2157         items_visible = ed_fieldx;
2158         item_position = 0;
2159       }
2160       else
2161       {
2162         items_max = MAX(lev_fieldy + 2, ed_fieldy);
2163         items_visible = ed_fieldy;
2164         item_position = 0;
2165       }
2166     }
2167
2168     event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
2169
2170     gd_x1 = DOOR_GFX_PAGEX8 + scrollbar_info[i].xpos;
2171     gd_x2 = (gd_x1 - (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL ?
2172                       scrollbar_info[i].height : scrollbar_info[i].width));
2173     gd_y1 = DOOR_GFX_PAGEY1 + scrollbar_info[i].ypos;
2174     gd_y2 = DOOR_GFX_PAGEY1 + scrollbar_info[i].ypos;
2175
2176     gi = CreateGadget(GDI_CUSTOM_ID, id,
2177                       GDI_CUSTOM_TYPE_ID, i,
2178                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
2179                       GDI_X, scrollbar_info[i].x,
2180                       GDI_Y, scrollbar_info[i].y,
2181                       GDI_WIDTH, scrollbar_info[i].width,
2182                       GDI_HEIGHT, scrollbar_info[i].height,
2183                       GDI_TYPE, scrollbar_info[i].type,
2184                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
2185                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
2186                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
2187                       GDI_STATE, GD_BUTTON_UNPRESSED,
2188                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2189                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
2190                       GDI_BORDER_SIZE, ED_BORDER_SIZE,
2191                       GDI_EVENT_MASK, event_mask,
2192                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2193                       GDI_CALLBACK_ACTION, HandleControlButtons,
2194                       GDI_END);
2195
2196     if (gi == NULL)
2197       Error(ERR_EXIT, "cannot create gadget");
2198
2199     level_editor_gadget[id] = gi;
2200   }
2201 }
2202
2203 static void CreateCheckbuttonGadgets()
2204 {
2205   Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2206   struct GadgetInfo *gi;
2207   unsigned long event_mask;
2208   int gd_x1, gd_x2, gd_x3, gd_x4, gd_y;
2209   boolean checked;
2210   int i;
2211
2212   event_mask = GD_EVENT_PRESSED;
2213
2214   gd_x1 = DOOR_GFX_PAGEX4 + ED_CHECKBUTTON_UNCHECKED_XPOS;
2215   gd_x2 = DOOR_GFX_PAGEX3 + ED_CHECKBUTTON_UNCHECKED_XPOS;
2216   gd_x3 = DOOR_GFX_PAGEX4 + ED_CHECKBUTTON_CHECKED_XPOS;
2217   gd_x4 = DOOR_GFX_PAGEX3 + ED_CHECKBUTTON_CHECKED_XPOS;
2218   gd_y  = DOOR_GFX_PAGEY1 + ED_RADIOBUTTON_YPOS;
2219
2220   for (i=0; i<ED_NUM_RADIOBUTTONS; i++)
2221   {
2222     int id = radiobutton_info[i].gadget_id;
2223
2224     checked =
2225       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
2226
2227     gi = CreateGadget(GDI_CUSTOM_ID, id,
2228                       GDI_CUSTOM_TYPE_ID, i,
2229                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
2230                       GDI_X, SX + radiobutton_info[i].x,
2231                       GDI_Y, SY + radiobutton_info[i].y,
2232                       GDI_WIDTH, ED_CHECKBUTTON_XSIZE,
2233                       GDI_HEIGHT, ED_CHECKBUTTON_YSIZE,
2234                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
2235                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
2236                       GDI_CHECKED, checked,
2237                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2238                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2239                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x3, gd_y,
2240                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x4, gd_y,
2241                       GDI_EVENT_MASK, event_mask,
2242                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2243                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
2244                       GDI_END);
2245
2246     if (gi == NULL)
2247       Error(ERR_EXIT, "cannot create gadget");
2248
2249     level_editor_gadget[id] = gi;
2250   }
2251
2252   for (i=0; i<ED_NUM_CHECKBUTTONS; i++)
2253   {
2254     int id = checkbutton_info[i].gadget_id;
2255
2256     if (id == GADGET_ID_STICK_ELEMENT)
2257       gd_y  = DOOR_GFX_PAGEY1 + ED_STICKYBUTTON_YPOS;
2258     else
2259       gd_y  = DOOR_GFX_PAGEY1 + ED_CHECKBUTTON_YPOS;
2260
2261     gi = CreateGadget(GDI_CUSTOM_ID, id,
2262                       GDI_CUSTOM_TYPE_ID, i,
2263                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
2264                       GDI_X, SX + checkbutton_info[i].x,
2265                       GDI_Y, SY + checkbutton_info[i].y,
2266                       GDI_WIDTH, ED_CHECKBUTTON_XSIZE,
2267                       GDI_HEIGHT, ED_CHECKBUTTON_YSIZE,
2268                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
2269                       GDI_CHECKED, *checkbutton_info[i].value,
2270                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2271                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2272                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x3, gd_y,
2273                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x4, gd_y,
2274                       GDI_EVENT_MASK, event_mask,
2275                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2276                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
2277                       GDI_END);
2278
2279     if (gi == NULL)
2280       Error(ERR_EXIT, "cannot create gadget");
2281
2282     level_editor_gadget[id] = gi;
2283   }
2284 }
2285
2286 void CreateLevelEditorGadgets()
2287 {
2288   ReinitializeElementList();
2289
2290   CreateControlButtons();
2291   CreateCounterButtons();
2292   CreateDrawingAreas();
2293   CreateTextInputGadgets();
2294   CreateScrollbarGadgets();
2295   CreateCheckbuttonGadgets();
2296 }
2297
2298 void FreeLevelEditorGadgets()
2299 {
2300   int i;
2301
2302   for (i=0; i<NUM_EDITOR_GADGETS; i++)
2303     FreeGadget(level_editor_gadget[i]);
2304 }
2305
2306 static void MapCounterButtons(int id)
2307 {
2308   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_down]);
2309   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_text]);
2310   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_up]);
2311 }
2312
2313 static void MapControlButtons()
2314 {
2315   int counter_id;
2316   int i;
2317
2318   /* map toolbox buttons */
2319   for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
2320     MapGadget(level_editor_gadget[i]);
2321
2322   /* map buttons to select elements */
2323   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
2324     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
2325   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
2326   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
2327   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
2328
2329   /* map buttons to select level */
2330   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
2331   ModifyEditorCounterLimits(counter_id,
2332                             leveldir_current->first_level,
2333                             leveldir_current->last_level);
2334   ModifyEditorCounter(counter_id, *counterbutton_info[counter_id].value);
2335   MapCounterButtons(counter_id);
2336 }
2337
2338 static void MapDrawingArea(int id)
2339 {
2340   MapGadget(level_editor_gadget[id]);
2341 }
2342
2343 static void MapTextInputGadget(int id)
2344 {
2345   MapGadget(level_editor_gadget[textinput_info[id].gadget_id]);
2346 }
2347
2348 static void MapRadiobuttonGadget(int id)
2349 {
2350   MapGadget(level_editor_gadget[radiobutton_info[id].gadget_id]);
2351 }
2352
2353 static void MapCheckbuttonGadget(int id)
2354 {
2355   MapGadget(level_editor_gadget[checkbutton_info[id].gadget_id]);
2356 }
2357
2358 static void MapMainDrawingArea()
2359 {
2360   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
2361   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
2362   int i;
2363
2364   for (i=ED_SCROLLBUTTON_ID_AREA_FIRST; i<=ED_SCROLLBUTTON_ID_AREA_LAST; i++)
2365   {
2366     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
2367           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
2368          no_horizontal_scrollbar) ||
2369         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
2370           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
2371          no_vertical_scrollbar))
2372       continue;
2373
2374     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
2375   }
2376
2377   for (i=ED_SCROLLBAR_ID_AREA_FIRST; i<=ED_SCROLLBAR_ID_AREA_LAST; i++)
2378   {
2379     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
2380         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
2381       continue;
2382
2383     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
2384   }
2385
2386   MapDrawingArea(GADGET_ID_DRAWING_LEVEL);
2387 }
2388
2389 static void UnmapDrawingArea(int id)
2390 {
2391   UnmapGadget(level_editor_gadget[id]);
2392 }
2393
2394 void UnmapLevelEditorWindowGadgets()
2395 {
2396   int i;
2397
2398   for (i=0; i<NUM_EDITOR_GADGETS; i++)
2399     if (level_editor_gadget[i]->x < SX + SXSIZE)
2400       UnmapGadget(level_editor_gadget[i]);
2401 }
2402
2403 void UnmapLevelEditorGadgets()
2404 {
2405   int i;
2406
2407   for (i=0; i<NUM_EDITOR_GADGETS; i++)
2408     UnmapGadget(level_editor_gadget[i]);
2409 }
2410
2411 static void ResetUndoBuffer()
2412 {
2413   undo_buffer_position = -1;
2414   undo_buffer_steps = -1;
2415   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
2416 }
2417
2418 static void DrawEditModeWindow()
2419 {
2420   if (edit_mode == ED_MODE_INFO)
2421     DrawLevelInfoWindow();
2422   else if (edit_mode == ED_MODE_PROPERTIES)
2423     DrawPropertiesWindow();
2424   else  /* edit_mode == ED_MODE_DRAWING */
2425     DrawDrawingWindow();
2426 }
2427
2428 static boolean LevelChanged()
2429 {
2430   boolean level_changed = FALSE;
2431   int x, y;
2432
2433   for(y=0; y<lev_fieldy; y++)
2434     for(x=0; x<lev_fieldx; x++)
2435       if (Feld[x][y] != Ur[x][y])
2436         level_changed = TRUE;
2437
2438   return level_changed;
2439 }
2440
2441 static boolean LevelContainsPlayer()
2442 {
2443   boolean player_found = FALSE;
2444   int x, y;
2445
2446   for(y=0; y<lev_fieldy; y++)
2447     for(x=0; x<lev_fieldx; x++)
2448       if (Feld[x][y] == EL_PLAYER1 ||
2449           Feld[x][y] == EL_SP_MURPHY)
2450         player_found = TRUE;
2451
2452   return player_found;
2453 }
2454
2455 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
2456                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
2457 {
2458   int x, y;
2459
2460   for(x=0; x<lev_fieldx; x++)
2461     for(y=0; y<lev_fieldy; y++)
2462       dst[x][y] = src[x][y];
2463 }
2464
2465 static void CopyCustomElementPropertiesToEditor()
2466 {
2467   int i;
2468
2469   for (i=0; i < NUM_CUSTOM_ELEMENTS; i++)
2470   {
2471     int element = EL_CUSTOM_START + i;
2472     int properties = Properties1[element];
2473
2474     custom_element_properties[i].indestructible =
2475       ((properties & EP_BIT_MASSIVE) != 0 ? TRUE : FALSE);
2476
2477     custom_element_properties[i].can_fall =
2478       ((properties & EP_BIT_CAN_FALL) != 0 ? TRUE : FALSE);
2479
2480     custom_element_properties[i].slippery =
2481       ((properties & EP_BIT_SLIPPERY) != 0 ? TRUE : FALSE);
2482   }
2483 }
2484
2485 static void CopyCustomElementPropertiesToGame()
2486 {
2487   int i;
2488
2489   for (i=0; i < NUM_CUSTOM_ELEMENTS; i++)
2490   {
2491     int element = EL_CUSTOM_START + i;
2492
2493     Properties1[element] = EP_BITMASK_DEFAULT;
2494
2495     if (custom_element_properties[i].indestructible)
2496       Properties1[element] |= EP_BIT_MASSIVE;
2497     else
2498       Properties1[element] &= ~EP_BIT_MASSIVE;
2499
2500     if (custom_element_properties[i].can_fall)
2501       Properties1[element] |= EP_BIT_CAN_FALL;
2502     else
2503       Properties1[element] &= ~EP_BIT_CAN_FALL;
2504
2505     if (custom_element_properties[i].slippery)
2506       Properties1[element] |= EP_BIT_SLIPPERY;
2507     else
2508       Properties1[element] &= ~EP_BIT_SLIPPERY;
2509   }
2510 }
2511
2512 void DrawLevelEd()
2513 {
2514   CloseDoor(DOOR_CLOSE_ALL);
2515   OpenDoor(DOOR_OPEN_2 | DOOR_NO_DELAY);
2516
2517   if (level_editor_test_game)
2518   {
2519     CopyPlayfield(Ur, Feld);
2520     CopyPlayfield(FieldBackup, Ur);
2521
2522     level_editor_test_game = FALSE;
2523   }
2524   else
2525   {
2526     edit_mode = ED_MODE_DRAWING;
2527
2528     ResetUndoBuffer();
2529     level_xpos = -1;
2530     level_ypos = -1;
2531   }
2532
2533   /* copy default editor door content to main double buffer */
2534   BlitBitmap(graphic_info[IMG_GLOBAL_DOOR].bitmap, drawto,
2535              DOOR_GFX_PAGEX6, DOOR_GFX_PAGEY1, DXSIZE, DYSIZE, DX, DY);
2536
2537   /* draw mouse button brush elements */
2538   DrawMiniGraphicExt(drawto,
2539                      DX + ED_WIN_MB_LEFT_XPOS, DY + ED_WIN_MB_LEFT_YPOS,
2540                      el2edimg(new_element1));
2541   DrawMiniGraphicExt(drawto,
2542                      DX + ED_WIN_MB_MIDDLE_XPOS, DY + ED_WIN_MB_MIDDLE_YPOS,
2543                      el2edimg(new_element2));
2544   DrawMiniGraphicExt(drawto,
2545                      DX + ED_WIN_MB_RIGHT_XPOS, DY + ED_WIN_MB_RIGHT_YPOS,
2546                      el2edimg(new_element3));
2547
2548   /* draw bigger door */
2549   DrawSpecialEditorDoor();
2550
2551   /* draw new control window */
2552   BlitBitmap(graphic_info[IMG_GLOBAL_DOOR].bitmap, drawto,
2553              DOOR_GFX_PAGEX8, 236, EXSIZE, EYSIZE, EX, EY);
2554
2555   redraw_mask |= REDRAW_ALL;
2556
2557   ReinitializeElementListButtons();     /* only needed after setup changes */
2558
2559   UnmapTapeButtons();
2560   MapControlButtons();
2561
2562   /* copy actual editor door content to door double buffer for OpenDoor() */
2563   BlitBitmap(drawto, bitmap_db_door,
2564              DX, DY, DXSIZE, DYSIZE, DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
2565
2566   DrawEditModeWindow();
2567
2568   /*
2569   FadeToFront();
2570   */
2571
2572
2573   OpenDoor(DOOR_OPEN_1);
2574
2575   /*
2576   OpenDoor(DOOR_OPEN_1 | DOOR_OPEN_2);
2577   */
2578 }
2579
2580 static void AdjustDrawingAreaGadgets()
2581 {
2582   int ed_xsize = lev_fieldx + 2;
2583   int ed_ysize = lev_fieldy + 2;
2584   int max_ed_fieldx = MAX_ED_FIELDX;
2585   int max_ed_fieldy = MAX_ED_FIELDY;
2586   boolean horizontal_scrollbar_needed;
2587   boolean vertical_scrollbar_needed;
2588   int x, y, width, height;
2589   int xoffset, yoffset;
2590
2591   /* check if we need any scrollbars */
2592   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
2593   vertical_scrollbar_needed = (ed_ysize > max_ed_fieldy);
2594
2595   /* check if we have a smaller editor field because of scrollbars */
2596   if (horizontal_scrollbar_needed)
2597     max_ed_fieldy = MAX_ED_FIELDY - 1;
2598   if (vertical_scrollbar_needed)
2599     max_ed_fieldx = MAX_ED_FIELDX - 1;
2600
2601   /* check again if we now need more scrollbars because of less space */
2602   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
2603   vertical_scrollbar_needed = (ed_ysize > max_ed_fieldy);
2604
2605   /* check if editor field gets even smaller after adding new scrollbars */
2606   if (horizontal_scrollbar_needed)
2607     max_ed_fieldy = MAX_ED_FIELDY - 1;
2608   if (vertical_scrollbar_needed)
2609     max_ed_fieldx = MAX_ED_FIELDX - 1;
2610
2611   ed_fieldx = (ed_xsize < MAX_ED_FIELDX ? ed_xsize : max_ed_fieldx);
2612   ed_fieldy = (ed_ysize < MAX_ED_FIELDY ? ed_ysize : max_ed_fieldy);
2613
2614   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
2615                GDI_WIDTH, ed_fieldx * MINI_TILEX,
2616                GDI_HEIGHT, ed_fieldy * MINI_TILEY,
2617                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
2618                GDI_END);
2619
2620   xoffset = (ed_fieldx == MAX_ED_FIELDX ? ED_SCROLLBUTTON_XSIZE : 0);
2621   yoffset = (ed_fieldy == MAX_ED_FIELDY ? ED_SCROLLBUTTON_YSIZE : 0);
2622
2623   x = SX + scrollbutton_info[ED_SCROLLBUTTON_ID_AREA_RIGHT].x + xoffset;
2624   y = SX + scrollbutton_info[ED_SCROLLBUTTON_ID_AREA_DOWN].y + yoffset;
2625
2626   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT], GDI_X, x, GDI_END);
2627   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN], GDI_Y, y, GDI_END);
2628
2629   width = scrollbar_info[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width + xoffset;
2630   height = scrollbar_info[ED_SCROLLBAR_ID_AREA_VERTICAL].height + yoffset;
2631
2632   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
2633                GDI_WIDTH, width,
2634                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
2635                GDI_END);
2636   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
2637                GDI_HEIGHT, height,
2638                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
2639                GDI_END);
2640 }
2641
2642 static void AdjustLevelScrollPosition()
2643 {
2644   if (level_xpos < -1)
2645     level_xpos = -1;
2646   if (level_xpos > lev_fieldx - ed_fieldx + 1)
2647     level_xpos = lev_fieldx - ed_fieldx + 1;
2648   if (lev_fieldx < ed_fieldx - 2)
2649     level_xpos = -1;
2650
2651   if (level_ypos < -1)
2652     level_ypos = -1;
2653   if (level_ypos > lev_fieldy - ed_fieldy + 1)
2654     level_ypos = lev_fieldy - ed_fieldy + 1;
2655   if (lev_fieldy < ed_fieldy - 2)
2656     level_ypos = -1;
2657 }
2658
2659 static void AdjustEditorScrollbar(int id)
2660 {
2661   struct GadgetInfo *gi = level_editor_gadget[id];
2662   int items_max, items_visible, item_position;
2663
2664   if (id == GADGET_ID_SCROLL_HORIZONTAL)
2665   {
2666     items_max = MAX(lev_fieldx + 2, ed_fieldx);
2667     items_visible = ed_fieldx;
2668     item_position = level_xpos + 1;
2669   }
2670   else
2671   {
2672     items_max = MAX(lev_fieldy + 2, ed_fieldy);
2673     items_visible = ed_fieldy;
2674     item_position = level_ypos + 1;
2675   }
2676
2677   if (item_position > items_max - items_visible)
2678     item_position = items_max - items_visible;
2679
2680   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
2681                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
2682 }
2683
2684 static void ModifyEditorTextInput(int textinput_id, char *new_text)
2685 {
2686   int gadget_id = textinput_info[textinput_id].gadget_id;
2687   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
2688
2689   ModifyGadget(gi, GDI_TEXT_VALUE, new_text, GDI_END);
2690 }
2691
2692 static void ModifyEditorCounter(int counter_id, int new_value)
2693 {
2694   int *counter_value = counterbutton_info[counter_id].value;
2695   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
2696   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
2697
2698   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
2699
2700   if (counter_value != NULL)
2701     *counter_value = gi->text.number_value;
2702 }
2703
2704 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
2705 {
2706   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
2707   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
2708
2709   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
2710 }
2711
2712 static void PickDrawingElement(int button, int element)
2713 {
2714   if (button < 1 || button > 3)
2715     return;
2716
2717   if (button == 1)
2718   {
2719     new_element1 = element;
2720     DrawMiniGraphicExt(drawto,
2721                        DX + ED_WIN_MB_LEFT_XPOS, DY + ED_WIN_MB_LEFT_YPOS,
2722                        el2edimg(new_element1));
2723   }
2724   else if (button == 2)
2725   {
2726     new_element2 = element;
2727     DrawMiniGraphicExt(drawto,
2728                        DX + ED_WIN_MB_MIDDLE_XPOS, DY + ED_WIN_MB_MIDDLE_YPOS,
2729                        el2edimg(new_element2));
2730   }
2731   else
2732   {
2733     new_element3 = element;
2734     DrawMiniGraphicExt(drawto,
2735                        DX + ED_WIN_MB_RIGHT_XPOS, DY + ED_WIN_MB_RIGHT_YPOS,
2736                        el2edimg(new_element3));
2737   }
2738
2739   redraw_mask |= REDRAW_DOOR_1;
2740 }
2741
2742 static void DrawDrawingWindow()
2743 {
2744   SetMainBackgroundImage(IMG_UNDEFINED);
2745   ClearWindow();
2746   UnmapLevelEditorWindowGadgets();
2747
2748   AdjustDrawingAreaGadgets();
2749   AdjustLevelScrollPosition();
2750   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
2751   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
2752
2753   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
2754   MapMainDrawingArea();
2755 }
2756
2757 static void DrawElementBorder(int dest_x, int dest_y, int width, int height)
2758 {
2759   int border_graphic = IMG_SAND;
2760   Bitmap *src_bitmap;
2761   int src_x, src_y;
2762   int num_mini_tilex = width / MINI_TILEX + 1;
2763   int num_mini_tiley = width / MINI_TILEY + 1;
2764   int x, y;
2765
2766   getMiniGraphicSource(border_graphic, &src_bitmap, &src_x, &src_y);
2767
2768   for (y=0; y < num_mini_tiley; y++)
2769     for (x=0; x < num_mini_tilex; x++)
2770       BlitBitmap(src_bitmap, drawto, src_x, src_y, MINI_TILEX, MINI_TILEY,
2771                  dest_x - MINI_TILEX / 2 + x * MINI_TILEX,
2772                  dest_y - MINI_TILEY / 2 + y * MINI_TILEY);
2773
2774   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
2775 }
2776
2777 static void DrawRandomPlacementBackgroundArea()
2778 {
2779   int area_x = ED_AREA_RANDOM_BACKGROUND_XPOS / MINI_TILEX;
2780   int area_y = ED_AREA_RANDOM_BACKGROUND_YPOS / MINI_TILEY;
2781   int area_sx = SX + ED_AREA_RANDOM_BACKGROUND_XPOS;
2782   int area_sy = SY + ED_AREA_RANDOM_BACKGROUND_YPOS;
2783
2784   ElementContent[0][0][0] = random_placement_background_element;
2785
2786   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY);
2787   DrawMiniElement(area_x, area_y, ElementContent[0][0][0]);
2788
2789   MapDrawingArea(GADGET_ID_RANDOM_BACKGROUND);
2790 }
2791
2792 static void DrawLevelInfoWindow()
2793 {
2794   char infotext[1024];
2795   int xoffset_above = 0;
2796   int yoffset_above = -(MINI_TILEX + ED_GADGET_DISTANCE);
2797   int xoffset_right = counter_xsize;
2798   int yoffset_right = ED_BORDER_SIZE;
2799   int xoffset_right2 = ED_CHECKBUTTON_XSIZE + 2 * ED_GADGET_DISTANCE;
2800   int yoffset_right2 = ED_BORDER_SIZE;
2801   int font_color = FC_GREEN;
2802   int i, x, y;
2803
2804   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR_SETTINGS_LEVEL);
2805   ClearWindow();
2806   UnmapLevelEditorWindowGadgets();
2807
2808   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS_YPOS,
2809            "Level Settings", FS_BIG, FC_YELLOW);
2810   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS2_YPOS,
2811            "Editor Settings", FS_BIG, FC_YELLOW);
2812
2813   /* draw counter gadgets */
2814   for (i=ED_COUNTER_ID_LEVEL_FIRST; i<=ED_COUNTER_ID_LEVEL_LAST; i++)
2815   {
2816     if (counterbutton_info[i].infotext_above)
2817     {
2818       x = counterbutton_info[i].x + xoffset_above;
2819       y = counterbutton_info[i].y + yoffset_above;
2820
2821       sprintf(infotext, "%s:", counterbutton_info[i].infotext_above);
2822       infotext[MAX_INFOTEXT_LEN] = '\0';
2823       DrawTextF(x, y, font_color, infotext);
2824     }
2825
2826     if (counterbutton_info[i].infotext_right)
2827     {
2828       x = counterbutton_info[i].x + xoffset_right;
2829       y = counterbutton_info[i].y + yoffset_right;
2830
2831       sprintf(infotext, "%s", counterbutton_info[i].infotext_right);
2832       infotext[MAX_INFOTEXT_LEN] = '\0';
2833       DrawTextF(x, y, font_color, infotext);
2834     }
2835
2836     ModifyEditorCounter(i, *counterbutton_info[i].value);
2837     MapCounterButtons(i);
2838   }
2839
2840   /* draw text input gadgets */
2841   for (i=ED_TEXTINPUT_ID_LEVEL_FIRST; i<=ED_TEXTINPUT_ID_LEVEL_LAST; i++)
2842   {
2843     x = textinput_info[i].x + xoffset_above;
2844     y = textinput_info[i].y + yoffset_above;
2845
2846     sprintf(infotext, "%s:", textinput_info[i].infotext);
2847     infotext[MAX_INFOTEXT_LEN] = '\0';
2848
2849     DrawTextF(x, y, font_color, infotext);
2850     ModifyEditorTextInput(i, textinput_info[i].value);
2851     MapTextInputGadget(i);
2852   }
2853
2854   /* draw radiobutton gadgets */
2855   for (i=ED_RADIOBUTTON_ID_LEVEL_FIRST; i<=ED_RADIOBUTTON_ID_LEVEL_LAST; i++)
2856   {
2857     boolean checked =
2858       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
2859
2860     x = radiobutton_info[i].x + xoffset_right2;
2861     y = radiobutton_info[i].y + yoffset_right2;
2862
2863     DrawTextF(x, y, font_color, radiobutton_info[i].text);
2864     ModifyGadget(level_editor_gadget[radiobutton_info[i].gadget_id],
2865                  GDI_CHECKED, checked, GDI_END);
2866     MapRadiobuttonGadget(i);
2867   }
2868
2869   /* draw checkbutton gadgets */
2870   for (i=ED_CHECKBUTTON_ID_LEVEL_FIRST; i<=ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
2871   {
2872     x = checkbutton_info[i].x + xoffset_right2;
2873     y = checkbutton_info[i].y + yoffset_right2;
2874
2875     DrawTextF(x, y, font_color, checkbutton_info[i].text);
2876     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
2877                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
2878     MapCheckbuttonGadget(i);
2879   }
2880
2881   /* draw drawing area */
2882   DrawRandomPlacementBackgroundArea();
2883 }
2884
2885 static void DrawAmoebaContentArea()
2886 {
2887   int area_x = ED_AREA_ELEM_CONTENT_XPOS / MINI_TILEX;
2888   int area_y = ED_AREA_ELEM_CONTENT_YPOS / MINI_TILEY;
2889   int area_sx = SX + ED_AREA_ELEM_CONTENT_XPOS;
2890   int area_sy = SY + ED_AREA_ELEM_CONTENT_YPOS;
2891   int font_color = FC_GREEN;
2892
2893   ElementContent[0][0][0] = level.amoeba_content;
2894
2895   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY);
2896   DrawMiniElement(area_x, area_y, ElementContent[0][0][0]);
2897
2898   DrawText(area_sx + TILEX, area_sy + 1, "Content of amoeba",
2899            FS_SMALL, font_color);
2900
2901   MapDrawingArea(GADGET_ID_AMOEBA_CONTENT);
2902 }
2903
2904 static void DrawElementContentAreas()
2905 {
2906   int counter_id = ED_COUNTER_ID_ELEM_CONTENT;
2907   int area_x = ED_AREA_ELEM_CONTENT_XPOS / MINI_TILEX;
2908   int area_y = ED_AREA_ELEM_CONTENT_YPOS / MINI_TILEY;
2909   int area_sx = SX + ED_AREA_ELEM_CONTENT_XPOS;
2910   int area_sy = SY + ED_AREA_ELEM_CONTENT_YPOS;
2911   int xoffset_right = counter_xsize;
2912   int yoffset_right = ED_BORDER_SIZE;
2913   int font_color = FC_GREEN;
2914   int i, x, y;
2915
2916   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
2917     for (y=0; y<3; y++)
2918       for (x=0; x<3; x++)
2919         ElementContent[i][x][y] = level.yam_content[i][x][y];
2920
2921   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
2922     UnmapDrawingArea(GADGET_ID_ELEM_CONTENT_0 + i);
2923
2924   /* display counter to choose number of element content areas */
2925   x = counterbutton_info[counter_id].x + xoffset_right;
2926   y = counterbutton_info[counter_id].y + yoffset_right;
2927   DrawTextF(x, y, font_color, "number of content areas");
2928
2929   ModifyEditorCounter(counter_id, *counterbutton_info[counter_id].value);
2930   MapCounterButtons(counter_id);
2931
2932   /* delete content areas in case of reducing number of them */
2933   DrawBackground(SX, area_sy - MINI_TILEX, SXSIZE, 12 * MINI_TILEY);
2934
2935   for (i=0; i<level.num_yam_contents; i++)
2936     DrawElementBorder(area_sx + 5 * (i % 4) * MINI_TILEX,
2937                       area_sy + 6 * (i / 4) * MINI_TILEY,
2938                       3 * MINI_TILEX, 3 * MINI_TILEY);
2939
2940   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 0 * MINI_TILEY + 1,
2941            "Content", FS_SMALL, font_color);
2942   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 1 * MINI_TILEY + 1,
2943            "when", FS_SMALL, font_color);
2944   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 2 * MINI_TILEY + 1,
2945            "smashed", FS_SMALL, font_color);
2946
2947   for (i=0; i<level.num_yam_contents; i++)
2948   {
2949     for (y=0; y<3; y++)
2950       for (x=0; x<3; x++)
2951         DrawMiniElement(area_x + 5 * (i % 4) + x, area_y + 6 * (i / 4) + y,
2952                         ElementContent[i][x][y]);
2953
2954     DrawTextF(area_sx - SX + 5 * (i % 4) * MINI_TILEX + MINI_TILEX + 1,
2955               area_sy - SY + 6 * (i / 4) * MINI_TILEY + 4 * MINI_TILEY - 4,
2956               font_color, "%d", i + 1);
2957   }
2958
2959   for (i=0; i<level.num_yam_contents; i++)
2960     MapDrawingArea(GADGET_ID_ELEM_CONTENT_0 + i);
2961 }
2962
2963 #define TEXT_COLLECTING         "Score for collecting"
2964 #define TEXT_SMASHING           "Score for smashing"
2965 #define TEXT_CRACKING           "Score for cracking"
2966 #define TEXT_SPEED              "Speed of amoeba growth"
2967 #define TEXT_DURATION           "Duration when activated"
2968
2969 static void DrawPropertiesWindow()
2970 {
2971   int counter_id = ED_COUNTER_ID_ELEM_SCORE;
2972   int num_elements_in_level;
2973   float percentage;
2974   int xoffset_right = counter_xsize;
2975   int yoffset_right = ED_BORDER_SIZE;
2976   int xoffset_right2 = ED_CHECKBUTTON_XSIZE + 2 * ED_GADGET_DISTANCE;
2977   int yoffset_right2 = ED_BORDER_SIZE;
2978   int xstart = 2;
2979   int ystart = 4;
2980   int font_color = FC_GREEN;
2981   int i, x, y;
2982   static struct
2983   {
2984     int element;
2985     int *value;
2986     char *text;
2987   } elements_with_counter[] =
2988   {
2989     { EL_EMERALD,       &level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
2990     { EL_BD_DIAMOND,    &level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
2991     { EL_EMERALD_YELLOW,&level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
2992     { EL_EMERALD_RED,   &level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
2993     { EL_EMERALD_PURPLE,&level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
2994     { EL_DIAMOND,       &level.score[SC_DIAMANT],       TEXT_COLLECTING },
2995     { EL_BUG_RIGHT,     &level.score[SC_KAEFER],        TEXT_SMASHING },
2996     { EL_BUG_UP,        &level.score[SC_KAEFER],        TEXT_SMASHING },
2997     { EL_BUG_LEFT,      &level.score[SC_KAEFER],        TEXT_SMASHING },
2998     { EL_BUG_DOWN,      &level.score[SC_KAEFER],        TEXT_SMASHING },
2999     { EL_BD_BUTTERFLY_RIGHT,&level.score[SC_KAEFER],    TEXT_SMASHING },
3000     { EL_BD_BUTTERFLY_UP,   &level.score[SC_KAEFER],    TEXT_SMASHING },
3001     { EL_BD_BUTTERFLY_LEFT, &level.score[SC_KAEFER],    TEXT_SMASHING },
3002     { EL_BD_BUTTERFLY_DOWN, &level.score[SC_KAEFER],    TEXT_SMASHING },
3003     { EL_SPACESHIP_RIGHT,&level.score[SC_FLIEGER],      TEXT_SMASHING },
3004     { EL_SPACESHIP_UP,   &level.score[SC_FLIEGER],      TEXT_SMASHING },
3005     { EL_SPACESHIP_LEFT, &level.score[SC_FLIEGER],      TEXT_SMASHING },
3006     { EL_SPACESHIP_DOWN, &level.score[SC_FLIEGER],      TEXT_SMASHING },
3007     { EL_BD_FIREFLY_RIGHT,&level.score[SC_FLIEGER],     TEXT_SMASHING },
3008     { EL_BD_FIREFLY_UP,   &level.score[SC_FLIEGER],     TEXT_SMASHING },
3009     { EL_BD_FIREFLY_LEFT, &level.score[SC_FLIEGER],     TEXT_SMASHING },
3010     { EL_BD_FIREFLY_DOWN, &level.score[SC_FLIEGER],     TEXT_SMASHING },
3011     { EL_YAMYAM,        &level.score[SC_MAMPFER],       TEXT_SMASHING },
3012     { EL_DARK_YAMYAM,   &level.score[SC_MAMPFER],       TEXT_SMASHING },
3013     { EL_ROBOT,         &level.score[SC_ROBOT],         TEXT_SMASHING },
3014     { EL_PACMAN_RIGHT,  &level.score[SC_PACMAN],        TEXT_SMASHING },
3015     { EL_PACMAN_UP,     &level.score[SC_PACMAN],        TEXT_SMASHING },
3016     { EL_PACMAN_LEFT,   &level.score[SC_PACMAN],        TEXT_SMASHING },
3017     { EL_PACMAN_DOWN,   &level.score[SC_PACMAN],        TEXT_SMASHING },
3018     { EL_NUT,           &level.score[SC_KOKOSNUSS],     TEXT_CRACKING },
3019     { EL_DYNAMITE,      &level.score[SC_DYNAMIT],       TEXT_COLLECTING },
3020     { EL_KEY1,          &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3021     { EL_KEY2,          &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3022     { EL_KEY3,          &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3023     { EL_KEY4,          &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3024     { EL_EM_KEY1_FILE,  &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3025     { EL_EM_KEY2_FILE,  &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3026     { EL_EM_KEY3_FILE,  &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3027     { EL_EM_KEY4_FILE,  &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3028     { EL_AMOEBA_WET,    &level.amoeba_speed,            TEXT_SPEED },
3029     { EL_AMOEBA_DRY,    &level.amoeba_speed,            TEXT_SPEED },
3030     { EL_AMOEBA_FULL,   &level.amoeba_speed,            TEXT_SPEED },
3031     { EL_BD_AMOEBA,     &level.amoeba_speed,            TEXT_SPEED },
3032     { EL_MAGIC_WALL,    &level.time_magic_wall,         TEXT_DURATION },
3033     { EL_ROBOT_WHEEL,   &level.time_wheel,              TEXT_DURATION },
3034     { -1, NULL, NULL }
3035   };
3036
3037   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR_SETTINGS_ELEMENT);
3038   ClearWindow();
3039   UnmapLevelEditorWindowGadgets();
3040
3041   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS_YPOS,
3042            "Element Settings", FS_BIG, FC_YELLOW);
3043
3044   DrawElementBorder(SX + xstart * MINI_TILEX,
3045                     SY + ystart * MINI_TILEY + MINI_TILEY / 2,
3046                     TILEX, TILEY);
3047   DrawGraphicAnimationExt(drawto,
3048                           SX + xstart * MINI_TILEX,
3049                           SY + ystart * MINI_TILEY + MINI_TILEY / 2,
3050                           el2edimg(properties_element), -1, NO_MASKING);
3051
3052   FrameCounter = 0;     /* restart animation frame counter */
3053
3054   DrawTextF((xstart + 3) * MINI_TILEX, (ystart + 1) * MINI_TILEY,
3055             font_color, getElementInfoText(properties_element));
3056
3057   num_elements_in_level = 0;
3058   for (y=0; y<lev_fieldy; y++)
3059     for (x=0; x<lev_fieldx; x++)
3060       if (Feld[x][y] == properties_element)
3061         num_elements_in_level++;
3062   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
3063
3064   DrawTextF(ED_SETTINGS_XPOS, 5 * TILEY, font_color, "In this level:");
3065   DrawTextF(ED_SETTINGS_XPOS + 15 * FONT2_XSIZE, 5 * TILEY, FC_YELLOW,
3066             "%d (%.2f%%)", num_elements_in_level, percentage);
3067
3068   /* check if there are elements where a score can be chosen for */
3069   for (i=0; elements_with_counter[i].element != -1; i++)
3070   {
3071     if (elements_with_counter[i].element == properties_element)
3072     {
3073       int x = counterbutton_info[counter_id].x + xoffset_right;
3074       int y = counterbutton_info[counter_id].y + yoffset_right;
3075
3076       counterbutton_info[counter_id].value = elements_with_counter[i].value;
3077       DrawTextF(x, y, font_color, elements_with_counter[i].text);
3078
3079       ModifyEditorCounter(counter_id,  *counterbutton_info[counter_id].value);
3080       MapCounterButtons(counter_id);
3081       break;
3082     }
3083   }
3084
3085   if (HAS_CONTENT(properties_element))
3086   {
3087     /* draw stickybutton gadget */
3088     i = ED_CHECKBUTTON_ID_STICK_ELEMENT;
3089     x = checkbutton_info[i].x + xoffset_right2;
3090     y = checkbutton_info[i].y + yoffset_right2;
3091
3092     DrawTextF(x, y, font_color, checkbutton_info[i].text);
3093     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3094                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3095     MapCheckbuttonGadget(i);
3096
3097     if (IS_AMOEBOID(properties_element))
3098       DrawAmoebaContentArea();
3099     else
3100       DrawElementContentAreas();
3101   }
3102
3103   if (IS_GEM(properties_element))
3104   {
3105     /* draw checkbutton gadget */
3106     i = ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS;
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
3116   if (IS_CUSTOM_ELEMENT(properties_element))
3117   {
3118     int nr = properties_element - EL_CUSTOM_START;
3119
3120     CopyCustomElementPropertiesToEditor();
3121
3122     /* draw checkbutton gadget */
3123     i = ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE;
3124     x = checkbutton_info[i].x + xoffset_right2;
3125     y = checkbutton_info[i].y + yoffset_right2;
3126
3127     checkbutton_info[i].value = &custom_element_properties[nr].indestructible;
3128
3129     DrawTextF(x, y, font_color, checkbutton_info[i].text);
3130     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3131                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3132     MapCheckbuttonGadget(i);
3133
3134     /* draw checkbutton gadget */
3135     i = ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL;
3136     x = checkbutton_info[i].x + xoffset_right2;
3137     y = checkbutton_info[i].y + yoffset_right2;
3138
3139     checkbutton_info[i].value = &custom_element_properties[nr].can_fall;
3140
3141     DrawTextF(x, y, font_color, checkbutton_info[i].text);
3142     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3143                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3144     MapCheckbuttonGadget(i);
3145
3146     /* draw checkbutton gadget */
3147     i = ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY;
3148     x = checkbutton_info[i].x + xoffset_right2;
3149     y = checkbutton_info[i].y + yoffset_right2;
3150
3151     checkbutton_info[i].value = &custom_element_properties[nr].slippery;
3152
3153     DrawTextF(x, y, font_color, checkbutton_info[i].text);
3154     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3155                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3156     MapCheckbuttonGadget(i);
3157   }
3158 }
3159
3160 static void DrawLineElement(int sx, int sy, int element, boolean change_level)
3161 {
3162   int lx = sx + level_xpos;
3163   int ly = sy + level_ypos;
3164
3165   DrawMiniElement(sx, sy, (element < 0 ? Feld[lx][ly] : element));
3166
3167   if (change_level)
3168     Feld[lx][ly] = element;
3169 }
3170
3171 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
3172                      int element, boolean change_level)
3173 {
3174   if (from_y == to_y)                   /* horizontal line */
3175   {
3176     int x;
3177     int y = from_y;
3178
3179     if (from_x > to_x)
3180       swap_numbers(&from_x, &to_x);
3181
3182     for (x=from_x; x<=to_x; x++)
3183       DrawLineElement(x, y, element, change_level);
3184   }
3185   else if (from_x == to_x)              /* vertical line */
3186   {
3187     int x = from_x;
3188     int y;
3189
3190     if (from_y > to_y)
3191       swap_numbers(&from_y, &to_y);
3192
3193     for (y=from_y; y<=to_y; y++)
3194       DrawLineElement(x, y, element, change_level);
3195   }
3196   else                                  /* diagonal line */
3197   {
3198     int len_x = ABS(to_x - from_x);
3199     int len_y = ABS(to_y - from_y);
3200     int x, y;
3201
3202     if (len_y < len_x)                  /* a < 1 */
3203     {
3204       float a = (float)len_y / (float)len_x;
3205
3206       if (from_x > to_x)
3207         swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
3208
3209       for (x=0; x<=len_x; x++)
3210       {
3211         y = (int)(a * x + 0.5) * (to_y < from_y ? -1 : +1);
3212         DrawLineElement(from_x + x, from_y + y, element, change_level);
3213       }
3214     }
3215     else                                /* a >= 1 */
3216     {
3217       float a = (float)len_x / (float)len_y;
3218
3219       if (from_y > to_y)
3220         swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
3221
3222       for (y=0; y<=len_y; y++)
3223       {
3224         x = (int)(a * y + 0.5) * (to_x < from_x ? -1 : +1);
3225         DrawLineElement(from_x + x, from_y + y, element, change_level);
3226       }
3227     }
3228   }
3229 }
3230
3231 static void DrawRectangle(int from_x, int from_y, int to_x, int to_y,
3232                           int element, boolean change_level)
3233 {
3234   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
3235   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
3236   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
3237   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
3238 }
3239
3240 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
3241                           int element, boolean change_level)
3242 {
3243   int y;
3244
3245   if (from_y > to_y)
3246     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
3247
3248   for (y=from_y; y<=to_y; y++)
3249     DrawLine(from_x, y, to_x, y, element, change_level);
3250 }
3251
3252 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
3253                        int element, boolean change_level)
3254 {
3255   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
3256   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
3257   int len_x = ABS(to_x - from_x);
3258   int len_y = ABS(to_y - from_y);
3259   int radius, x, y;
3260
3261   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
3262
3263   /* not optimal (some points get drawn twice) but simple,
3264      and fast enough for the few points we are drawing */
3265
3266   for (x=0; x<=radius; x++)
3267   {
3268     int sx, sy, lx, ly;
3269
3270     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
3271
3272     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
3273     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
3274     lx = sx + level_xpos;
3275     ly = sy + level_ypos;
3276
3277     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
3278       DrawLineElement(sx, sy, element, change_level);
3279   }
3280
3281   for (y=0; y<=radius; y++)
3282   {
3283     int sx, sy, lx, ly;
3284
3285     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
3286
3287     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
3288     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
3289     lx = sx + level_xpos;
3290     ly = sy + level_ypos;
3291
3292     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
3293       DrawLineElement(sx, sy, element, change_level);
3294   }
3295 }
3296
3297 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
3298                     int element, boolean change_level)
3299 {
3300   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
3301   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
3302
3303   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
3304 }
3305
3306 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
3307 #if DRAW_CIRCLES_BUTTON_AVAILABLE
3308 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
3309                        int element, boolean change_level)
3310 {
3311   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
3312   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
3313   int mirror_to_x2 = from_x - (to_x2 - from_x);
3314   int mirror_to_y2 = from_y - (to_y2 - from_y);
3315
3316   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
3317   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
3318   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
3319   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element,change_level);
3320 }
3321 #endif
3322
3323 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
3324 {
3325   int from_sx, from_sy;
3326   int to_sx, to_sy;
3327
3328   if (from_x > to_x)
3329     swap_numbers(&from_x, &to_x);
3330
3331   if (from_y > to_y)
3332     swap_numbers(&from_y, &to_y);
3333
3334   from_sx = SX + from_x * MINI_TILEX;
3335   from_sy = SY + from_y * MINI_TILEY;
3336   to_sx = SX + to_x * MINI_TILEX + MINI_TILEX - 1;
3337   to_sy = SY + to_y * MINI_TILEY + MINI_TILEY - 1;
3338
3339   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
3340   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
3341   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
3342   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
3343
3344   if (from_x == to_x && from_y == to_y)
3345     MarkTileDirty(from_x/2, from_y/2);
3346   else
3347     redraw_mask |= REDRAW_FIELD;
3348 }
3349
3350 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
3351                        int element, boolean change_level)
3352 {
3353   if (element == -1 || change_level)
3354     DrawRectangle(from_x, from_y, to_x, to_y, -1, FALSE);
3355   else
3356     DrawAreaBorder(from_x, from_y, to_x, to_y);
3357 }
3358
3359 /* values for CopyBrushExt() */
3360 #define CB_AREA_TO_BRUSH        0
3361 #define CB_BRUSH_TO_CURSOR      1
3362 #define CB_BRUSH_TO_LEVEL       2
3363 #define CB_DELETE_OLD_CURSOR    3
3364
3365 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
3366                          int button, int mode)
3367 {
3368   static short brush_buffer[MAX_ED_FIELDX][MAX_ED_FIELDY];
3369   static int brush_width, brush_height;
3370   static int last_cursor_x = -1, last_cursor_y = -1;
3371   static boolean delete_old_brush;
3372   int new_element = BUTTON_ELEMENT(button);
3373   int x, y;
3374
3375   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
3376     return;
3377
3378   if (mode == CB_AREA_TO_BRUSH)
3379   {
3380     int from_lx, from_ly;
3381
3382     if (from_x > to_x)
3383       swap_numbers(&from_x, &to_x);
3384
3385     if (from_y > to_y)
3386       swap_numbers(&from_y, &to_y);
3387
3388     brush_width = to_x - from_x + 1;
3389     brush_height = to_y - from_y + 1;
3390
3391     from_lx = from_x + level_xpos;
3392     from_ly = from_y + level_ypos;
3393
3394     for (y=0; y<brush_height; y++)
3395     {
3396       for (x=0; x<brush_width; x++)
3397       {
3398         brush_buffer[x][y] = Feld[from_lx + x][from_ly + y];
3399
3400         if (button != 1)
3401           DrawLineElement(from_x + x, from_y + y, new_element, TRUE);
3402       }
3403     }
3404
3405     if (button != 1)
3406       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3407
3408     delete_old_brush = FALSE;
3409   }
3410   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
3411            mode == CB_BRUSH_TO_LEVEL)
3412   {
3413     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
3414     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
3415     int cursor_from_x = cursor_x - brush_width / 2;
3416     int cursor_from_y = cursor_y - brush_height / 2;
3417     int border_from_x = cursor_x, border_from_y = cursor_y;
3418     int border_to_x = cursor_x, border_to_y = cursor_y;
3419
3420     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
3421       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
3422
3423     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
3424         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
3425     {
3426       delete_old_brush = FALSE;
3427       return;
3428     }
3429
3430     for (y=0; y<brush_height; y++)
3431     {
3432       for (x=0; x<brush_width; x++)
3433       {
3434         int sx = cursor_from_x + x;
3435         int sy = cursor_from_y + y;
3436         int lx = sx + level_xpos;
3437         int ly = sy + level_ypos;
3438         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
3439         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
3440                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
3441                        brush_buffer[x][y] : new_element);
3442
3443         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
3444         {
3445           if (sx < border_from_x)
3446             border_from_x = sx;
3447           else if (sx > border_to_x)
3448             border_to_x = sx;
3449           if (sy < border_from_y)
3450             border_from_y = sy;
3451           else if (sy > border_to_y)
3452             border_to_y = sy;
3453
3454           DrawLineElement(sx, sy, element, change_level);
3455         }
3456       }
3457     }
3458
3459     if (mode != CB_DELETE_OLD_CURSOR)
3460       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
3461
3462     last_cursor_x = cursor_x;
3463     last_cursor_y = cursor_y;
3464     delete_old_brush = TRUE;
3465   }
3466 }
3467
3468 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
3469                             int button)
3470 {
3471   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
3472 }
3473
3474 static void CopyBrushToLevel(int x, int y, int button)
3475 {
3476   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
3477 }
3478
3479 static void CopyBrushToCursor(int x, int y)
3480 {
3481   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
3482 }
3483
3484 static void DeleteBrushFromCursor()
3485 {
3486   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
3487 }
3488
3489 static void FloodFill(int from_x, int from_y, int fill_element)
3490 {
3491   int i,x,y;
3492   int old_element;
3493   static int check[4][2] = { {-1,0}, {0,-1}, {1,0}, {0,1} };
3494   static int safety = 0;
3495
3496   /* check if starting field still has the desired content */
3497   if (Feld[from_x][from_y] == fill_element)
3498     return;
3499
3500   safety++;
3501
3502   if (safety > lev_fieldx*lev_fieldy)
3503     Error(ERR_EXIT, "Something went wrong in 'FloodFill()'. Please debug.");
3504
3505   old_element = Feld[from_x][from_y];
3506   Feld[from_x][from_y] = fill_element;
3507
3508   for(i=0;i<4;i++)
3509   {
3510     x = from_x + check[i][0];
3511     y = from_y + check[i][1];
3512
3513     if (IN_LEV_FIELD(x,y) && Feld[x][y] == old_element)
3514       FloodFill(x, y, fill_element);
3515   }
3516
3517   safety--;
3518 }
3519
3520 /* values for DrawLevelText() modes */
3521 #define TEXT_INIT               0
3522 #define TEXT_SETCURSOR          1
3523 #define TEXT_WRITECHAR          2
3524 #define TEXT_BACKSPACE          3
3525 #define TEXT_NEWLINE            4
3526 #define TEXT_END                5
3527 #define TEXT_QUERY_TYPING       6
3528
3529 static int DrawLevelText(int sx, int sy, char letter, int mode)
3530 {
3531   static short delete_buffer[MAX_LEV_FIELDX];
3532   static int start_sx, start_sy;
3533   static int last_sx, last_sy;
3534   static boolean typing = FALSE;
3535   int letter_element = EL_CHAR_ASCII0 + letter;
3536   int lx = 0, ly = 0;
3537
3538   /* map lower case letters to upper case and convert special characters */
3539   if (letter >= 'a' && letter <= 'z')
3540     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
3541   else if (letter == 'ä' || letter == 'Ä')
3542     letter_element = EL_CHAR_AE;
3543   else if (letter == 'ö' || letter == 'Ö')
3544     letter_element = EL_CHAR_OE;
3545   else if (letter == 'ü' || letter == 'Ü')
3546     letter_element = EL_CHAR_UE;
3547   else if (letter == '^')
3548     letter_element = EL_CHAR_COPYRIGHT;
3549   else
3550     letter_element = EL_CHAR_ASCII0 + letter;
3551
3552   if (mode != TEXT_INIT)
3553   {
3554     if (!typing)
3555       return FALSE;
3556
3557     if (mode != TEXT_SETCURSOR)
3558     {
3559       sx = last_sx;
3560       sy = last_sy;
3561     }
3562
3563     lx = last_sx + level_xpos;
3564     ly = last_sy + level_ypos;
3565   }
3566
3567   switch (mode)
3568   {
3569     case TEXT_INIT:
3570       if (typing)
3571         DrawLevelText(0, 0, 0, TEXT_END);
3572
3573       typing = TRUE;
3574       start_sx = last_sx = sx;
3575       start_sy = last_sy = sy;
3576       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
3577       break;
3578
3579     case TEXT_SETCURSOR:
3580       DrawMiniElement(last_sx, last_sy, Feld[lx][ly]);
3581       DrawAreaBorder(sx, sy, sx, sy);
3582       last_sx = sx;
3583       last_sy = sy;
3584       break;
3585
3586     case TEXT_WRITECHAR:
3587       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
3588       {
3589         delete_buffer[sx - start_sx] = Feld[lx][ly];
3590         Feld[lx][ly] = letter_element;
3591
3592         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
3593           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
3594         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
3595           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
3596         else
3597           DrawLevelText(0, 0, 0, TEXT_END);
3598       }
3599       break;
3600
3601     case TEXT_BACKSPACE:
3602       if (sx > start_sx)
3603       {
3604         Feld[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
3605         DrawMiniElement(sx - 1, sy, Feld[lx - 1][ly]);
3606         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
3607       }
3608       break;
3609
3610     case TEXT_NEWLINE:
3611       if (sy + 1 < ed_fieldy - 1 && ly + 1 < lev_fieldy - 1)
3612         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
3613       else
3614         DrawLevelText(0, 0, 0, TEXT_END);
3615       break;
3616
3617     case TEXT_END:
3618       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3619       DrawMiniElement(sx, sy, Feld[lx][ly]);
3620       typing = FALSE;
3621       break;
3622
3623     case TEXT_QUERY_TYPING:
3624       break;
3625
3626     default:
3627       break;
3628   }
3629
3630   return typing;
3631 }
3632
3633 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
3634                           int element, boolean change_level)
3635 {
3636   int lx = sx + level_xpos;
3637   int ly = sy + level_ypos;
3638
3639   if (element == -1)
3640     DrawMiniElement(sx, sy, Feld[lx][ly]);
3641   else
3642     DrawAreaBorder(sx, sy, sx, sy);
3643 }
3644
3645 static void CopyLevelToUndoBuffer(int mode)
3646 {
3647   static boolean accumulated_undo = FALSE;
3648   boolean new_undo_buffer_position = TRUE;
3649   int last_border_element;
3650   int x, y;
3651
3652   switch (mode)
3653   {
3654     case UNDO_IMMEDIATE:
3655       accumulated_undo = FALSE;
3656       break;
3657
3658     case UNDO_ACCUMULATE:
3659       if (accumulated_undo)
3660         new_undo_buffer_position = FALSE;
3661       accumulated_undo = TRUE;
3662       break;
3663
3664     default:
3665       break;
3666   }
3667
3668   if (new_undo_buffer_position)
3669   {
3670     /* new position in undo buffer ring */
3671     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
3672
3673     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
3674       undo_buffer_steps++;
3675   }
3676
3677   for(x=0; x<lev_fieldx; x++)
3678     for(y=0; y<lev_fieldy; y++)
3679       UndoBuffer[undo_buffer_position][x][y] = Feld[x][y];
3680
3681   /* check if drawing operation forces change of border style */
3682   last_border_element = BorderElement;
3683   SetBorderElement();
3684   if (BorderElement != last_border_element)
3685     DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3686
3687 #if 0
3688 #ifdef DEBUG
3689   printf("level saved to undo buffer\n");
3690 #endif
3691 #endif
3692 }
3693
3694 static void RandomPlacement(int new_element)
3695 {
3696   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3697   int num_free_positions;
3698   int num_percentage;
3699   int num_elements;
3700   int x, y;
3701
3702   /* determine number of free positions for the new elements */
3703   /* (maybe this statement should be formatted a bit more readable...) */
3704   num_free_positions = 0;
3705   for (x=0; x<lev_fieldx; x++)
3706     for (y=0; y<lev_fieldy; y++)
3707       if ((free_position[x][y] =
3708            ((random_placement_background_restricted &&
3709              Feld[x][y] == random_placement_background_element) ||
3710             (!random_placement_background_restricted &&
3711              Feld[x][y] != new_element))) == TRUE)
3712         num_free_positions++;
3713
3714   /* determine number of new elements to place there */
3715   num_percentage = num_free_positions * random_placement_value / 100;
3716   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
3717                   num_percentage : random_placement_value);
3718
3719   /* if not more free positions than elements to place, fill whole level */
3720   if (num_elements >= num_free_positions)
3721   {
3722     for (x=0; x<lev_fieldx; x++)
3723       for (y=0; y<lev_fieldy; y++)
3724         Feld[x][y] = new_element;
3725
3726     DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3727     CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3728     return;
3729   }
3730
3731   while (num_elements > 0)
3732   {
3733     x = RND(lev_fieldx);
3734     y = RND(lev_fieldy);
3735
3736     /* don't place element at the same position twice */
3737     if (free_position[x][y])
3738     {
3739       free_position[x][y] = FALSE;
3740       Feld[x][y] = new_element;
3741       num_elements--;
3742     }
3743   }
3744
3745   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3746   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3747 }
3748
3749 void WrapLevel(int dx, int dy)
3750 {
3751   int wrap_dx = lev_fieldx - dx;
3752   int wrap_dy = lev_fieldy - dy;
3753   int x, y;
3754
3755   for(x=0; x<lev_fieldx; x++)
3756     for(y=0; y<lev_fieldy; y++)
3757       FieldBackup[x][y] = Feld[x][y];
3758
3759   for(x=0; x<lev_fieldx; x++)
3760     for(y=0; y<lev_fieldy; y++)
3761       Feld[x][y] =
3762         FieldBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
3763
3764   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3765   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
3766 }
3767
3768 static void HandleDrawingAreas(struct GadgetInfo *gi)
3769 {
3770   static boolean started_inside_drawing_area = FALSE;
3771   int id = gi->custom_id;
3772   boolean button_press_event;
3773   boolean button_release_event;
3774   boolean inside_drawing_area = !gi->event.off_borders;
3775   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
3776   int actual_drawing_function;
3777   int button = gi->event.button;
3778   int new_element = BUTTON_ELEMENT(button);
3779   int sx = gi->event.x, sy = gi->event.y;
3780   int min_sx = 0, min_sy = 0;
3781   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
3782   int lx = 0, ly = 0;
3783   int min_lx = 0, min_ly = 0;
3784   int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
3785   int x, y;
3786
3787   /* handle info callback for each invocation of action callback */
3788   gi->callback_info(gi);
3789
3790   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
3791   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
3792
3793   /* make sure to stay inside drawing area boundaries */
3794   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
3795   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
3796
3797   if (draw_level)
3798   {
3799     /* get positions inside level field */
3800     lx = sx + level_xpos;
3801     ly = sy + level_ypos;
3802
3803     if (!IN_LEV_FIELD(lx, ly))
3804       inside_drawing_area = FALSE;
3805
3806     /* make sure to stay inside level field boundaries */
3807     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
3808     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
3809
3810     /* correct drawing area positions accordingly */
3811     sx = lx - level_xpos;
3812     sy = ly - level_ypos;
3813   }
3814
3815   if (button_press_event)
3816     started_inside_drawing_area = inside_drawing_area;
3817
3818   if (!started_inside_drawing_area)
3819     return;
3820
3821   if (!button && !button_release_event)
3822     return;
3823
3824   /* automatically switch to 'single item' drawing mode, if needed */
3825   actual_drawing_function =
3826     (draw_level ? drawing_function : GADGET_ID_SINGLE_ITEMS);
3827
3828   switch (actual_drawing_function)
3829   {
3830     case GADGET_ID_SINGLE_ITEMS:
3831       if (draw_level)
3832       {
3833         if (button_release_event)
3834         {
3835           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3836
3837           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
3838               !inside_drawing_area)
3839             DeleteBrushFromCursor();
3840         }
3841
3842         if (!button)
3843           break;
3844
3845         if (draw_with_brush)
3846         {
3847           if (!button_release_event)
3848             CopyBrushToLevel(sx, sy, button);
3849         }
3850         else if (new_element != Feld[lx][ly])
3851         {
3852           if (new_element == EL_PLAYER1)
3853           {
3854             /* remove player at old position */
3855             for(y=0; y<lev_fieldy; y++)
3856             {
3857               for(x=0; x<lev_fieldx; x++)
3858               {
3859                 if (Feld[x][y] == EL_PLAYER1)
3860                 {
3861                   Feld[x][y] = EL_EMPTY;
3862                   if (x - level_xpos >= 0 && x - level_xpos < ed_fieldx &&
3863                       y - level_ypos >= 0 && y - level_ypos < ed_fieldy)
3864                     DrawMiniElement(x - level_xpos, y - level_ypos,
3865                                     EL_EMPTY);
3866                 }
3867               }
3868             }
3869           }
3870
3871           Feld[lx][ly] = new_element;
3872           DrawMiniElement(sx, sy, new_element);
3873         }
3874       }
3875       else
3876       {
3877         DrawMiniGraphicExt(drawto,
3878                            gi->x + sx * MINI_TILEX,
3879                            gi->y + sy * MINI_TILEY,
3880                            el2edimg(new_element));
3881         DrawMiniGraphicExt(window,
3882                            gi->x + sx * MINI_TILEX,
3883                            gi->y + sy * MINI_TILEY,
3884                            el2edimg(new_element));
3885
3886         if (id == GADGET_ID_AMOEBA_CONTENT)
3887           level.amoeba_content = new_element;
3888         else if (id == GADGET_ID_RANDOM_BACKGROUND)
3889           random_placement_background_element = new_element;
3890         else if (id >= GADGET_ID_ELEM_CONTENT_0 &&
3891                  id <= GADGET_ID_ELEM_CONTENT_7)
3892           level.yam_content[id - GADGET_ID_ELEM_CONTENT_0][sx][sy] =
3893             new_element;
3894       }
3895       break;
3896
3897     case GADGET_ID_CONNECTED_ITEMS:
3898       {
3899         static int last_sx = -1;
3900         static int last_sy = -1;
3901
3902         if (button_release_event)
3903           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3904
3905         if (button)
3906         {
3907           if (!button_press_event)
3908             DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
3909
3910           last_sx = sx;
3911           last_sy = sy;
3912         }
3913       }
3914       break;
3915
3916     case GADGET_ID_LINE:
3917     case GADGET_ID_ARC:
3918     case GADGET_ID_RECTANGLE:
3919     case GADGET_ID_FILLED_BOX:
3920     case GADGET_ID_GRAB_BRUSH:
3921     case GADGET_ID_TEXT:
3922       {
3923         static int last_sx = -1;
3924         static int last_sy = -1;
3925         static int start_sx = -1;
3926         static int start_sy = -1;
3927         void (*draw_func)(int, int, int, int, int, boolean);
3928
3929         if (drawing_function == GADGET_ID_LINE)
3930           draw_func = DrawLine;
3931         else if (drawing_function == GADGET_ID_ARC)
3932           draw_func = DrawArc;
3933         else if (drawing_function == GADGET_ID_RECTANGLE)
3934           draw_func = DrawRectangle;
3935         else if (drawing_function == GADGET_ID_FILLED_BOX)
3936           draw_func = DrawFilledBox;
3937         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
3938           draw_func = SelectArea;
3939         else /* (drawing_function == GADGET_ID_TEXT) */
3940           draw_func = SetTextCursor;
3941
3942         if (button_press_event)
3943         {
3944           draw_func(sx, sy, sx, sy, new_element, FALSE);
3945           start_sx = last_sx = sx;
3946           start_sy = last_sy = sy;
3947
3948           if (drawing_function == GADGET_ID_TEXT)
3949             DrawLevelText(0, 0, 0, TEXT_END);
3950         }
3951         else if (button_release_event)
3952         {
3953           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
3954           if (drawing_function == GADGET_ID_GRAB_BRUSH)
3955           {
3956             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
3957             CopyBrushToCursor(sx, sy);
3958             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
3959                           MB_LEFTBUTTON);
3960             draw_with_brush = TRUE;
3961           }
3962           else if (drawing_function == GADGET_ID_TEXT)
3963             DrawLevelText(sx, sy, 0, TEXT_INIT);
3964           else
3965             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3966         }
3967         else if (last_sx != sx || last_sy != sy)
3968         {
3969           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
3970           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
3971           last_sx = sx;
3972           last_sy = sy;
3973         }
3974       }
3975       break;
3976
3977     case GADGET_ID_FLOOD_FILL:
3978       if (button_press_event && Feld[lx][ly] != new_element)
3979       {
3980         FloodFill(lx, ly, new_element);
3981         DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3982         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3983       }
3984       break;
3985
3986     case GADGET_ID_PICK_ELEMENT:
3987       if (button_release_event)
3988         ClickOnGadget(level_editor_gadget[last_drawing_function],
3989                       MB_LEFTBUTTON);
3990       else
3991         PickDrawingElement(button, Feld[lx][ly]);
3992
3993       break;
3994
3995     default:
3996       break;
3997   }
3998 }
3999
4000 static void HandleCounterButtons(struct GadgetInfo *gi)
4001 {
4002   int gadget_id = gi->custom_id;
4003   int counter_id = gi->custom_type_id;
4004   int button = gi->event.button;
4005   int *counter_value = counterbutton_info[counter_id].value;
4006   int step = BUTTON_STEPSIZE(button) *
4007     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
4008
4009   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
4010   {
4011     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
4012     boolean released = (gi->event.type == GD_EVENT_RELEASED);
4013     boolean level_changed = LevelChanged();
4014
4015     if ((level_changed && pressed) || (!level_changed && released))
4016       return;
4017
4018     if (level_changed && !Request("Level has changed! Discard changes ?",
4019                                   REQ_ASK))
4020     {
4021       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
4022         ModifyEditorCounter(counter_id, *counter_value);
4023       return;
4024     }
4025   }
4026
4027   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
4028     *counter_value = gi->text.number_value;
4029   else
4030     ModifyEditorCounter(counter_id, *counter_value + step);
4031
4032   switch (counter_id)
4033   {
4034     case ED_COUNTER_ID_ELEM_CONTENT:
4035       DrawElementContentAreas();
4036       break;
4037
4038     case ED_COUNTER_ID_LEVEL_XSIZE:
4039     case ED_COUNTER_ID_LEVEL_YSIZE:
4040       lev_fieldx = level.fieldx;
4041       lev_fieldy = level.fieldy;
4042       break;
4043
4044     case ED_COUNTER_ID_SELECT_LEVEL:
4045       LoadLevel(level_nr);
4046       TapeErase();
4047       ResetUndoBuffer();
4048       DrawEditModeWindow();
4049       break;
4050
4051     default:
4052       break;
4053   }
4054 }
4055
4056 static void HandleTextInputGadgets(struct GadgetInfo *gi)
4057 {
4058   strcpy(textinput_info[gi->custom_type_id].value, gi->text.value);
4059 }
4060
4061 static void HandleRadiobuttons(struct GadgetInfo *gi)
4062 {
4063   *radiobutton_info[gi->custom_type_id].value =
4064     radiobutton_info[gi->custom_type_id].checked_value;
4065 }
4066
4067 static void HandleCheckbuttons(struct GadgetInfo *gi)
4068 {
4069   int type_id = gi->custom_type_id;
4070
4071   *checkbutton_info[type_id].value ^= TRUE;
4072
4073   if (type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
4074       type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST)
4075     CopyCustomElementPropertiesToGame();
4076 }
4077
4078 static void HandleControlButtons(struct GadgetInfo *gi)
4079 {
4080   int id = gi->custom_id;
4081   int button = gi->event.button;
4082   int step = BUTTON_STEPSIZE(button);
4083   int new_element = BUTTON_ELEMENT(button);
4084   int i, x, y;
4085
4086   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
4087     DrawLevelText(0, 0, 0, TEXT_END);
4088
4089   if (id < ED_NUM_CTRL1_BUTTONS && id != GADGET_ID_PROPERTIES &&
4090       edit_mode != ED_MODE_DRAWING)
4091   {
4092     DrawDrawingWindow();
4093     edit_mode = ED_MODE_DRAWING;
4094   }
4095
4096   switch (id)
4097   {
4098     case GADGET_ID_SCROLL_LEFT:
4099       if (level_xpos >= 0)
4100       {
4101         if (lev_fieldx < ed_fieldx - 2)
4102           break;
4103
4104         level_xpos -= step;
4105         if (level_xpos < -1)
4106           level_xpos = -1;
4107         if (button == 1)
4108           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
4109         else
4110           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4111
4112         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
4113                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
4114       }
4115       break;
4116
4117     case GADGET_ID_SCROLL_RIGHT:
4118       if (level_xpos <= lev_fieldx - ed_fieldx)
4119       {
4120         if (lev_fieldx < ed_fieldx - 2)
4121           break;
4122
4123         level_xpos += step;
4124         if (level_xpos > lev_fieldx - ed_fieldx + 1)
4125           level_xpos = lev_fieldx - ed_fieldx + 1;
4126         if (button == 1)
4127           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
4128         else
4129           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4130
4131         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
4132                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
4133       }
4134       break;
4135
4136     case GADGET_ID_SCROLL_UP:
4137       if (level_ypos >= 0)
4138       {
4139         if (lev_fieldy < ed_fieldy - 2)
4140           break;
4141
4142         level_ypos -= step;
4143         if (level_ypos < -1)
4144           level_ypos = -1;
4145         if (button == 1)
4146           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
4147         else
4148           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4149
4150         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
4151                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
4152       }
4153       break;
4154
4155     case GADGET_ID_SCROLL_DOWN:
4156       if (level_ypos <= lev_fieldy - ed_fieldy)
4157       {
4158         if (lev_fieldy < ed_fieldy - 2)
4159           break;
4160
4161         level_ypos += step;
4162         if (level_ypos > lev_fieldy - ed_fieldy + 1)
4163           level_ypos = lev_fieldy - ed_fieldy + 1;
4164         if (button == 1)
4165           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_UP);
4166         else
4167           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4168
4169         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
4170                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
4171       }
4172       break;
4173
4174     case GADGET_ID_SCROLL_HORIZONTAL:
4175       level_xpos = gi->event.item_position - 1;
4176       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4177       break;
4178
4179     case GADGET_ID_SCROLL_VERTICAL:
4180       level_ypos = gi->event.item_position - 1;
4181       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4182       break;
4183
4184     case GADGET_ID_SCROLL_LIST_UP:
4185     case GADGET_ID_SCROLL_LIST_DOWN:
4186     case GADGET_ID_SCROLL_LIST_VERTICAL:
4187       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
4188         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
4189       else
4190       {
4191         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
4192         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
4193
4194         if (element_shift < 0)
4195           element_shift = 0;
4196         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
4197           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
4198
4199         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
4200                      GDI_SCROLLBAR_ITEM_POSITION,
4201                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
4202       }
4203
4204       for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
4205       {
4206         int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
4207         struct GadgetInfo *gi = level_editor_gadget[gadget_id];
4208         struct GadgetDesign *gd = &gi->deco.design;
4209         int element = editor_elements[element_shift + i];
4210
4211         UnmapGadget(gi);
4212         getMiniGraphicSource(el2edimg(element), &gd->bitmap, &gd->x, &gd->y);
4213         ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
4214         MapGadget(gi);
4215       }
4216       break;
4217
4218     case GADGET_ID_WRAP_LEFT:
4219       WrapLevel(-step, 0);
4220       break;
4221
4222     case GADGET_ID_WRAP_RIGHT:
4223       WrapLevel(step, 0);
4224       break;
4225
4226     case GADGET_ID_WRAP_UP:
4227       WrapLevel(0, -step);
4228       break;
4229
4230     case GADGET_ID_WRAP_DOWN:
4231       WrapLevel(0, step);
4232       break;
4233
4234     case GADGET_ID_SINGLE_ITEMS:
4235     case GADGET_ID_CONNECTED_ITEMS:
4236     case GADGET_ID_LINE:
4237     case GADGET_ID_ARC:
4238     case GADGET_ID_TEXT:
4239     case GADGET_ID_RECTANGLE:
4240     case GADGET_ID_FILLED_BOX:
4241     case GADGET_ID_FLOOD_FILL:
4242     case GADGET_ID_GRAB_BRUSH:
4243     case GADGET_ID_PICK_ELEMENT:
4244       last_drawing_function = drawing_function;
4245       drawing_function = id;
4246       draw_with_brush = FALSE;
4247       break;
4248
4249     case GADGET_ID_RANDOM_PLACEMENT:
4250       RandomPlacement(new_element);
4251       break;
4252
4253     case GADGET_ID_PROPERTIES:
4254       if (edit_mode != ED_MODE_PROPERTIES)
4255       {
4256         properties_element = new_element;
4257         DrawPropertiesWindow();
4258         edit_mode = ED_MODE_PROPERTIES;
4259       }
4260       else
4261       {
4262         DrawDrawingWindow();
4263         edit_mode = ED_MODE_DRAWING;
4264       }
4265       break;
4266
4267     case GADGET_ID_UNDO:
4268       if (undo_buffer_steps == 0)
4269       {
4270         Request("Undo buffer empty !", REQ_CONFIRM);
4271         break;
4272       }
4273
4274       undo_buffer_position =
4275         (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
4276       undo_buffer_steps--;
4277
4278       for(x=0; x<lev_fieldx; x++)
4279         for(y=0; y<lev_fieldy; y++)
4280           Feld[x][y] = UndoBuffer[undo_buffer_position][x][y];
4281       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos,level_ypos);
4282       break;
4283
4284     case GADGET_ID_INFO:
4285       if (edit_mode != ED_MODE_INFO)
4286       {
4287         DrawLevelInfoWindow();
4288         edit_mode = ED_MODE_INFO;
4289       }
4290       else
4291       {
4292         DrawDrawingWindow();
4293         edit_mode = ED_MODE_DRAWING;
4294       }
4295       break;
4296
4297     case GADGET_ID_CLEAR:
4298       for(x=0; x<MAX_LEV_FIELDX; x++)
4299         for(y=0; y<MAX_LEV_FIELDY; y++)
4300           Feld[x][y] = (button == 1 ? EL_EMPTY : new_element);
4301       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
4302
4303       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4304       break;
4305
4306     case GADGET_ID_SAVE:
4307       if (leveldir_current->readonly)
4308       {
4309         Request("This level is read only !", REQ_CONFIRM);
4310         break;
4311       }
4312
4313       if (!LevelContainsPlayer)
4314         Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
4315       else
4316       {
4317         if (Request("Save this level and kill the old ?", REQ_ASK))
4318         {
4319           CopyPlayfield(Feld, Ur);
4320
4321           SaveLevel(level_nr);
4322         }
4323       }
4324       break;
4325
4326     case GADGET_ID_TEST:
4327       if (!LevelContainsPlayer)
4328         Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
4329       else
4330       {
4331         if (LevelChanged())
4332           level.game_version = GAME_VERSION_ACTUAL;
4333
4334         CopyPlayfield(Ur, FieldBackup);
4335         CopyPlayfield(Feld, Ur);
4336
4337         UnmapLevelEditorGadgets();
4338         UndrawSpecialEditorDoor();
4339
4340         CloseDoor(DOOR_CLOSE_ALL);
4341
4342         DrawCompleteVideoDisplay();
4343
4344         if (setup.autorecord)
4345           TapeStartRecording();
4346
4347         level_editor_test_game = TRUE;
4348         game_status = PLAYING;
4349
4350         InitGame();
4351       }
4352       break;
4353
4354     case GADGET_ID_EXIT:
4355       RequestExitLevelEditor(TRUE);     /* if level has changed, ask user */
4356       break;
4357
4358     default:
4359       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
4360           id <= GADGET_ID_ELEMENTLIST_LAST)
4361       {
4362         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
4363         int new_element = editor_elements[element_position + element_shift];
4364
4365         PickDrawingElement(button, new_element);
4366
4367         if (!HAS_CONTENT(properties_element) ||
4368             !stick_element_properties_window)
4369         {
4370           properties_element = new_element;
4371           if (edit_mode == ED_MODE_PROPERTIES)
4372             DrawPropertiesWindow();
4373         }
4374
4375         if (drawing_function == GADGET_ID_PICK_ELEMENT)
4376           ClickOnGadget(level_editor_gadget[last_drawing_function],
4377                         MB_LEFTBUTTON);
4378       }
4379 #ifdef DEBUG
4380       else if (gi->event.type == GD_EVENT_PRESSED)
4381         printf("default: HandleControlButtons: GD_EVENT_PRESSED(%d)\n", id);
4382       else if (gi->event.type == GD_EVENT_RELEASED)
4383         printf("default: HandleControlButtons: GD_EVENT_RELEASED(%d)\n", id);
4384       else if (gi->event.type == GD_EVENT_MOVING)
4385         printf("default: HandleControlButtons: GD_EVENT_MOVING(%d)\n", id);
4386       else
4387         printf("default: HandleControlButtons: ? (id == %d)\n", id);
4388 #endif
4389       break;
4390   }
4391 }
4392
4393 void HandleLevelEditorKeyInput(Key key)
4394 {
4395   char letter = getCharFromKey(key);
4396   int button = MB_LEFTBUTTON;
4397
4398   if (drawing_function == GADGET_ID_TEXT &&
4399       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
4400   {
4401     if (letter)
4402       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
4403     else if (key == KSYM_Delete || key == KSYM_BackSpace)
4404       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
4405     else if (key == KSYM_Return)
4406       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
4407     else if (key == KSYM_Escape)
4408       DrawLevelText(0, 0, 0, TEXT_END);
4409   }
4410   else if (button_status == MB_RELEASED)
4411   {
4412     int i, id = GADGET_ID_NONE;
4413
4414     switch (key)
4415     {
4416       case KSYM_Left:
4417         id = GADGET_ID_SCROLL_LEFT;
4418         break;
4419       case KSYM_Right:
4420         id = GADGET_ID_SCROLL_RIGHT;
4421         break;
4422       case KSYM_Up:
4423         id = GADGET_ID_SCROLL_UP;
4424         break;
4425       case KSYM_Down:
4426         id = GADGET_ID_SCROLL_DOWN;
4427         break;
4428       case KSYM_Page_Up:
4429         id = GADGET_ID_SCROLL_LIST_UP;
4430         button = MB_RIGHTBUTTON;
4431         break;
4432       case KSYM_Page_Down:
4433         id = GADGET_ID_SCROLL_LIST_DOWN;
4434         button = MB_RIGHTBUTTON;
4435         break;
4436
4437       case KSYM_Escape:
4438         if (edit_mode == ED_MODE_DRAWING)
4439         {
4440           RequestExitLevelEditor(setup.ask_on_escape);
4441         }
4442         else
4443         {
4444           DrawDrawingWindow();
4445           edit_mode = ED_MODE_DRAWING;
4446         }
4447         break;
4448
4449       default:
4450         break;
4451     }
4452
4453     if (id != GADGET_ID_NONE)
4454       ClickOnGadget(level_editor_gadget[id], button);
4455     else if (letter == '.')
4456       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
4457     else if (key == KSYM_Return || key == setup.shortcut.toggle_pause)
4458       ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
4459     else
4460       for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
4461         if (letter && letter == control_info[i].shortcut)
4462           if (!anyTextGadgetActive())
4463             ClickOnGadget(level_editor_gadget[i], button);
4464   }
4465 }
4466
4467 void HandleLevelEditorIdle()
4468 {
4469   static unsigned long action_delay = 0;
4470   unsigned long action_delay_value = GameFrameDelay;
4471   int xpos = 1, ypos = 2;
4472
4473   if (edit_mode != ED_MODE_PROPERTIES)
4474     return;
4475
4476   if (!DelayReached(&action_delay, action_delay_value))
4477     return;
4478
4479   DrawGraphicAnimationExt(drawto,
4480                           SX + xpos * TILEX,
4481                           SY + ypos * TILEY + MINI_TILEY / 2,
4482                           el2edimg(properties_element), -1, NO_MASKING);
4483
4484   MarkTileDirty(xpos, ypos);
4485   MarkTileDirty(xpos, ypos + 1);
4486
4487   FrameCounter++;       /* increase animation frame counter */
4488 }
4489
4490 void ClearEditorGadgetInfoText()
4491 {
4492   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
4493 }
4494
4495 void HandleEditorGadgetInfoText(void *ptr)
4496 {
4497   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
4498   char infotext[MAX_INFOTEXT_LEN + 1];
4499   char shortcut[MAX_INFOTEXT_LEN + 1];
4500
4501   if (game_status != LEVELED)
4502     return;
4503
4504   ClearEditorGadgetInfoText();
4505
4506   if (gi->event.type == GD_EVENT_INFO_LEAVING)
4507     return;
4508
4509   /* misuse this function to delete brush cursor, if needed */
4510   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
4511     DeleteBrushFromCursor();
4512
4513   if (gi == NULL || gi->info_text == NULL)
4514     return;
4515
4516   strncpy(infotext, gi->info_text, MAX_INFOTEXT_LEN);
4517   infotext[MAX_INFOTEXT_LEN] = '\0';
4518
4519   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
4520   {
4521     int key = control_info[gi->custom_id].shortcut;
4522
4523     if (key)
4524     {
4525       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)      /* special case 1 */
4526         sprintf(shortcut, " ('.' or '%c')", key);
4527       else if (gi->custom_id == GADGET_ID_TEST)         /* special case 2 */
4528         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
4529       else                                              /* normal case */
4530         sprintf(shortcut, " ('%s%c')",
4531                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
4532
4533       if (strlen(infotext) + strlen(shortcut) <= MAX_INFOTEXT_LEN)
4534         strcat(infotext, shortcut);
4535     }
4536   }
4537
4538   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, FS_SMALL, FC_YELLOW);
4539 }
4540
4541 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
4542 {
4543   static int start_lx, start_ly;
4544   char *infotext;
4545   int id = gi->custom_id;
4546   int sx = gi->event.x;
4547   int sy = gi->event.y;
4548   int lx = sx + level_xpos;
4549   int ly = sy + level_ypos;
4550   int min_sx = 0, min_sy = 0;
4551   int max_sx = gi->drawing.area_xsize - 1;
4552   int max_sy = gi->drawing.area_ysize - 1;
4553
4554   ClearEditorGadgetInfoText();
4555
4556   if (gi->event.type == GD_EVENT_INFO_LEAVING)
4557     return;
4558
4559   /* make sure to stay inside drawing area boundaries */
4560   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
4561   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
4562
4563   if (id == GADGET_ID_DRAWING_LEVEL)
4564   {
4565     if (button_status)
4566     {
4567       int min_lx = 0, min_ly = 0;
4568       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
4569
4570       /* get positions inside level field */
4571       lx = sx + level_xpos;
4572       ly = sy + level_ypos;
4573
4574       /* make sure to stay inside level field boundaries */
4575       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
4576       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
4577
4578       /* correct drawing area positions accordingly */
4579       sx = lx - level_xpos;
4580       sy = ly - level_ypos;
4581     }
4582
4583     if (IN_ED_FIELD(sx,sy) && IN_LEV_FIELD(lx, ly))
4584     {
4585       if (button_status)        /* if (gi->state == GD_BUTTON_PRESSED) */
4586       {
4587         if (gi->event.type == GD_EVENT_PRESSED)
4588         {
4589           start_lx = lx;
4590           start_ly = ly;
4591         }
4592
4593         switch (drawing_function)
4594         {
4595           case GADGET_ID_SINGLE_ITEMS:
4596             infotext = "Drawing single items";
4597             break;
4598           case GADGET_ID_CONNECTED_ITEMS:
4599             infotext = "Drawing connected items";
4600             break;
4601           case GADGET_ID_LINE:
4602             infotext = "Drawing line";
4603             break;
4604           case GADGET_ID_ARC:
4605             infotext = "Drawing arc";
4606             break;
4607           case GADGET_ID_TEXT:
4608             infotext = "Setting text cursor";
4609             break;
4610           case GADGET_ID_RECTANGLE:
4611             infotext = "Drawing rectangle";
4612             break;
4613           case GADGET_ID_FILLED_BOX:
4614             infotext = "Drawing filled box";
4615             break;
4616           case GADGET_ID_FLOOD_FILL:
4617             infotext = "Flood fill";
4618             break;
4619           case GADGET_ID_GRAB_BRUSH:
4620             infotext = "Grabbing brush";
4621             break;
4622           case GADGET_ID_PICK_ELEMENT:
4623             infotext = "Picking element";
4624             break;
4625
4626           default:
4627             infotext = "Drawing position";
4628             break;
4629         }
4630
4631         if (drawing_function == GADGET_ID_PICK_ELEMENT)
4632           DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FC_YELLOW,
4633                     "%s: %d, %d", infotext, lx, ly);
4634         else
4635           DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FC_YELLOW,
4636                     "%s: %d, %d", infotext,
4637                     ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
4638       }
4639       else if (drawing_function == GADGET_ID_PICK_ELEMENT)
4640         DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FC_YELLOW,
4641                   "%s", getElementInfoText(Feld[lx][ly]));
4642       else
4643         DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FC_YELLOW,
4644                   "Level position: %d, %d", lx, ly);
4645     }
4646
4647     /* misuse this function to draw brush cursor, if needed */
4648     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
4649     {
4650       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
4651         CopyBrushToCursor(sx, sy);
4652       else
4653         DeleteBrushFromCursor();
4654     }
4655   }
4656   else if (id == GADGET_ID_AMOEBA_CONTENT)
4657     DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FC_YELLOW,
4658               "Amoeba content");
4659   else if (id == GADGET_ID_RANDOM_BACKGROUND)
4660     DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FC_YELLOW,
4661               "Random placement background");
4662   else
4663     DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FC_YELLOW,
4664               "Content area %d position: %d, %d",
4665               id - GADGET_ID_ELEM_CONTENT_0 + 1, sx, sy);
4666 }
4667
4668 void RequestExitLevelEditor(boolean ask_if_level_has_changed)
4669 {
4670   if (!ask_if_level_has_changed ||
4671       !LevelChanged() ||
4672       Request("Level has changed! Exit without saving ?",
4673               REQ_ASK | REQ_STAY_OPEN))
4674   {
4675     CloseDoor(DOOR_CLOSE_1);
4676     /*
4677     CloseDoor(DOOR_CLOSE_ALL);
4678     */
4679     game_status = MAINMENU;
4680     DrawMainMenu();
4681   }
4682   else
4683   {
4684     CloseDoor(DOOR_CLOSE_1);
4685     BlitBitmap(bitmap_db_door, bitmap_db_door,
4686                DOOR_GFX_PAGEX2, DOOR_GFX_PAGEY1, DXSIZE,DYSIZE,
4687                DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
4688     OpenDoor(DOOR_OPEN_1);
4689   }
4690 }