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_COUNTER_YPOS2(n)             (ED_COUNTER_YSTART + \
  99                                          n * ED_COUNTER_YDISTANCE / 2)
 100 #define ED_COUNTER2_YPOS(n)             (ED_COUNTER_YSTART + \
 101                                          n * ED_COUNTER_YDISTANCE - 2)
 102
 103 /* standard distances */
 104 #define ED_BORDER_SIZE                  3
 105 #define ED_BORDER2_SIZE                 5
 106 #define ED_GADGET_DISTANCE              2
 107
 108 /* values for element content drawing areas */
 109 #define ED_AREA_ELEM_CONTENT_XPOS       ( 2 * MINI_TILEX)
 110 #define ED_AREA_ELEM_CONTENT_YPOS       (22 * MINI_TILEY)
 111
 112 #define ED_AREA_ELEM_CONTENT2_XPOS      ( 2 * MINI_TILEX)
 113 #define ED_AREA_ELEM_CONTENT2_YPOS      (28 * MINI_TILEY)
 114
 115 /* values for random placement background drawing area */
 116 #define ED_AREA_RANDOM_BACKGROUND_XPOS  (29 * MINI_TILEX)
 117 #define ED_AREA_RANDOM_BACKGROUND_YPOS  (31 * MINI_TILEY)
 118
 119 /* values for scrolling gadgets for drawing area */
 120 #define ED_SCROLLBUTTON_XPOS            24
 121 #define ED_SCROLLBUTTON_YPOS            0
 122 #define ED_SCROLLBAR_XPOS               24
 123 #define ED_SCROLLBAR_YPOS               64
 124
 125 #define ED_SCROLLBUTTON_XSIZE           16
 126 #define ED_SCROLLBUTTON_YSIZE           16
 127
 128 #define ED_SCROLL_UP_XPOS               (SXSIZE - ED_SCROLLBUTTON_XSIZE)
 129 #define ED_SCROLL_UP_YPOS               (0)
 130 #define ED_SCROLL_DOWN_XPOS             ED_SCROLL_UP_XPOS
 131 #define ED_SCROLL_DOWN_YPOS             (SYSIZE - 3 * ED_SCROLLBUTTON_YSIZE)
 132 #define ED_SCROLL_LEFT_XPOS             (0)
 133 #define ED_SCROLL_LEFT_YPOS             (SYSIZE - 2 * ED_SCROLLBUTTON_YSIZE)
 134 #define ED_SCROLL_RIGHT_XPOS            (SXSIZE - 2 * ED_SCROLLBUTTON_XSIZE)
 135 #define ED_SCROLL_RIGHT_YPOS            ED_SCROLL_LEFT_YPOS
 136 #define ED_SCROLL_HORIZONTAL_XPOS (ED_SCROLL_LEFT_XPOS + ED_SCROLLBUTTON_XSIZE)
 137 #define ED_SCROLL_HORIZONTAL_YPOS       ED_SCROLL_LEFT_YPOS
 138 #define ED_SCROLL_HORIZONTAL_XSIZE      (SXSIZE - 3 * ED_SCROLLBUTTON_XSIZE)
 139 #define ED_SCROLL_HORIZONTAL_YSIZE      ED_SCROLLBUTTON_YSIZE
 140 #define ED_SCROLL_VERTICAL_XPOS         ED_SCROLL_UP_XPOS
 141 #define ED_SCROLL_VERTICAL_YPOS   (ED_SCROLL_UP_YPOS + ED_SCROLLBUTTON_YSIZE)
 142 #define ED_SCROLL_VERTICAL_XSIZE        ED_SCROLLBUTTON_XSIZE
 143 #define ED_SCROLL_VERTICAL_YSIZE        (SYSIZE - 4 * ED_SCROLLBUTTON_YSIZE)
 144
 145 /* values for scrolling gadgets for element list */
 146 #define ED_SCROLLBUTTON2_XPOS           50
 147 #define ED_SCROLLBUTTON2_YPOS           0
 148 #define ED_SCROLLBAR2_XPOS              50
 149 #define ED_SCROLLBAR2_YPOS              20
 150
 151 #define ED_SCROLLBUTTON2_XSIZE          10
 152 #define ED_SCROLLBUTTON2_YSIZE          10
 153
 154 #define ED_SCROLL2_UP_XPOS              85
 155 #define ED_SCROLL2_UP_YPOS              30
 156 #define ED_SCROLL2_DOWN_XPOS            ED_SCROLL2_UP_XPOS
 157 #define ED_SCROLL2_DOWN_YPOS            (ED_SCROLL2_UP_YPOS + \
 158                                          ED_ELEMENTLIST_BUTTONS_VERT * \
 159                                          ED_ELEMENTLIST_YSIZE - \
 160                                          ED_SCROLLBUTTON2_YSIZE)
 161 #define ED_SCROLL2_VERTICAL_XPOS        ED_SCROLL2_UP_XPOS
 162 #define ED_SCROLL2_VERTICAL_YPOS        (ED_SCROLL2_UP_YPOS + \
 163                                          ED_SCROLLBUTTON2_YSIZE)
 164 #define ED_SCROLL2_VERTICAL_XSIZE       ED_SCROLLBUTTON2_XSIZE
 165 #define ED_SCROLL2_VERTICAL_YSIZE       (ED_ELEMENTLIST_BUTTONS_VERT * \
 166                                          ED_ELEMENTLIST_YSIZE - \
 167                                          2 * ED_SCROLLBUTTON2_YSIZE)
 168
 169 /* values for checkbutton gadgets */
 170 #define ED_CHECKBUTTON_XSIZE            ED_BUTTON_COUNT_XSIZE
 171 #define ED_CHECKBUTTON_YSIZE            ED_BUTTON_COUNT_YSIZE
 172 #define ED_CHECKBUTTON_UNCHECKED_XPOS   ED_BUTTON_MINUS_XPOS
 173 #define ED_CHECKBUTTON_CHECKED_XPOS     ED_BUTTON_PLUS_XPOS
 174 #define ED_CHECKBUTTON_YPOS             (ED_BUTTON_MINUS_YPOS + 22)
 175 #define ED_RADIOBUTTON_YPOS             (ED_BUTTON_MINUS_YPOS + 44)
 176 #define ED_STICKYBUTTON_YPOS            (ED_BUTTON_MINUS_YPOS + 66)
 177
 178 /* some positions in the editor control window */
 179 #define ED_BUTTON_ELEM_XPOS             6
 180 #define ED_BUTTON_ELEM_YPOS             30
 181 #define ED_BUTTON_ELEM_XSIZE            22
 182 #define ED_BUTTON_ELEM_YSIZE            22
 183
 184 /* some values for text input, selectbox and counter gadgets */
 185 #define ED_BUTTON_COUNT_YPOS            60
 186 #define ED_BUTTON_COUNT_XSIZE           20
 187 #define ED_BUTTON_COUNT_YSIZE           20
 188 #define ED_WIN_COUNT_XPOS               (2 + ED_BUTTON_COUNT_XSIZE + 2)
 189 #define ED_WIN_COUNT_YPOS               ED_BUTTON_COUNT_YPOS
 190 #define ED_WIN_COUNT_XSIZE              52
 191 #define ED_WIN_COUNT_YSIZE              ED_BUTTON_COUNT_YSIZE
 192 #define ED_WIN_COUNT2_XPOS              27
 193 #define ED_WIN_COUNT2_YPOS              3
 194 #define ED_WIN_COUNT2_XSIZE             46
 195 #define ED_WIN_COUNT2_YSIZE             ED_BUTTON_COUNT_YSIZE
 196
 197 #define ED_BUTTON_MINUS_XPOS            2
 198 #define ED_BUTTON_MINUS_YPOS            ED_BUTTON_COUNT_YPOS
 199 #define ED_BUTTON_MINUS_XSIZE           ED_BUTTON_COUNT_XSIZE
 200 #define ED_BUTTON_MINUS_YSIZE           ED_BUTTON_COUNT_YSIZE
 201 #define ED_BUTTON_PLUS_XPOS             (ED_WIN_COUNT_XPOS + \
 202                                          ED_WIN_COUNT_XSIZE + 2)
 203 #define ED_BUTTON_PLUS_YPOS             ED_BUTTON_COUNT_YPOS
 204 #define ED_BUTTON_PLUS_XSIZE            ED_BUTTON_COUNT_XSIZE
 205 #define ED_BUTTON_PLUS_YSIZE            ED_BUTTON_COUNT_YSIZE
 206
 207 #define ED_SELECTBOX_XPOS               ED_WIN_COUNT_XPOS
 208 #define ED_SELECTBOX_YPOS               (ED_WIN_COUNT_YPOS + \
 209                                          2 + ED_WIN_COUNT_YSIZE)
 210 #define ED_SELECTBOX_XSIZE              ED_WIN_COUNT_XSIZE
 211 #define ED_SELECTBOX_YSIZE              ED_WIN_COUNT_YSIZE
 212
 213 #define ED_TEXTBUTTON_XPOS              ED_WIN_COUNT_XPOS
 214 #define ED_TEXTBUTTON_YPOS              (ED_WIN_COUNT_YPOS + \
 215                                          2 * (2 + ED_WIN_COUNT_YSIZE))
 216 #define ED_TEXTBUTTON_INACTIVE_YPOS     (ED_WIN_COUNT_YPOS + \
 217                                          3 * (2 + ED_WIN_COUNT_YSIZE))
 218 #define ED_TEXTBUTTON_XSIZE             ED_WIN_COUNT_XSIZE
 219 #define ED_TEXTBUTTON_YSIZE             ED_WIN_COUNT_YSIZE
 220
 221 /* editor gadget identifiers */
 222
 223 /* drawing toolbox buttons */
 224 #define GADGET_ID_NONE                  -1
 225 #define GADGET_ID_TOOLBOX_FIRST         0
 226
 227 #define GADGET_ID_SINGLE_ITEMS          (GADGET_ID_TOOLBOX_FIRST + 0)
 228 #define GADGET_ID_CONNECTED_ITEMS       (GADGET_ID_TOOLBOX_FIRST + 1)
 229 #define GADGET_ID_LINE                  (GADGET_ID_TOOLBOX_FIRST + 2)
 230 #define GADGET_ID_ARC                   (GADGET_ID_TOOLBOX_FIRST + 3)
 231 #define GADGET_ID_RECTANGLE             (GADGET_ID_TOOLBOX_FIRST + 4)
 232 #define GADGET_ID_FILLED_BOX            (GADGET_ID_TOOLBOX_FIRST + 5)
 233 #define GADGET_ID_WRAP_UP               (GADGET_ID_TOOLBOX_FIRST + 6)
 234 #define GADGET_ID_TEXT                  (GADGET_ID_TOOLBOX_FIRST + 7)
 235 #define GADGET_ID_FLOOD_FILL            (GADGET_ID_TOOLBOX_FIRST + 8)
 236 #define GADGET_ID_WRAP_LEFT             (GADGET_ID_TOOLBOX_FIRST + 9)
 237 #define GADGET_ID_PROPERTIES            (GADGET_ID_TOOLBOX_FIRST + 10)
 238 #define GADGET_ID_WRAP_RIGHT            (GADGET_ID_TOOLBOX_FIRST + 11)
 239 #define GADGET_ID_RANDOM_PLACEMENT      (GADGET_ID_TOOLBOX_FIRST + 12)
 240 #define GADGET_ID_GRAB_BRUSH            (GADGET_ID_TOOLBOX_FIRST + 13)
 241 #define GADGET_ID_WRAP_DOWN             (GADGET_ID_TOOLBOX_FIRST + 14)
 242 #define GADGET_ID_PICK_ELEMENT          (GADGET_ID_TOOLBOX_FIRST + 15)
 243 #define GADGET_ID_UNDO                  (GADGET_ID_TOOLBOX_FIRST + 16)
 244 #define GADGET_ID_INFO                  (GADGET_ID_TOOLBOX_FIRST + 17)
 245 #define GADGET_ID_SAVE                  (GADGET_ID_TOOLBOX_FIRST + 18)
 246 #define GADGET_ID_CLEAR                 (GADGET_ID_TOOLBOX_FIRST + 19)
 247 #define GADGET_ID_TEST                  (GADGET_ID_TOOLBOX_FIRST + 20)
 248 #define GADGET_ID_EXIT                  (GADGET_ID_TOOLBOX_FIRST + 21)
 249
 250 /* counter button identifiers */
 251 #define GADGET_ID_COUNTER_FIRST         (GADGET_ID_TOOLBOX_FIRST + 22)
 252
 253 #define GADGET_ID_ELEM_SCORE_DOWN       (GADGET_ID_COUNTER_FIRST + 0)
 254 #define GADGET_ID_ELEM_SCORE_TEXT       (GADGET_ID_COUNTER_FIRST + 1)
 255 #define GADGET_ID_ELEM_SCORE_UP         (GADGET_ID_COUNTER_FIRST + 2)
 256 #define GADGET_ID_ELEM_CONTENT_DOWN     (GADGET_ID_COUNTER_FIRST + 3)
 257 #define GADGET_ID_ELEM_CONTENT_TEXT     (GADGET_ID_COUNTER_FIRST + 4)
 258 #define GADGET_ID_ELEM_CONTENT_UP       (GADGET_ID_COUNTER_FIRST + 5)
 259 #define GADGET_ID_LEVEL_XSIZE_DOWN      (GADGET_ID_COUNTER_FIRST + 6)
 260 #define GADGET_ID_LEVEL_XSIZE_TEXT      (GADGET_ID_COUNTER_FIRST + 7)
 261 #define GADGET_ID_LEVEL_XSIZE_UP        (GADGET_ID_COUNTER_FIRST + 8)
 262 #define GADGET_ID_LEVEL_YSIZE_DOWN      (GADGET_ID_COUNTER_FIRST + 9)
 263 #define GADGET_ID_LEVEL_YSIZE_TEXT      (GADGET_ID_COUNTER_FIRST + 10)
 264 #define GADGET_ID_LEVEL_YSIZE_UP        (GADGET_ID_COUNTER_FIRST + 11)
 265 #define GADGET_ID_LEVEL_RANDOM_DOWN     (GADGET_ID_COUNTER_FIRST + 12)
 266 #define GADGET_ID_LEVEL_RANDOM_TEXT     (GADGET_ID_COUNTER_FIRST + 13)
 267 #define GADGET_ID_LEVEL_RANDOM_UP       (GADGET_ID_COUNTER_FIRST + 14)
 268 #define GADGET_ID_LEVEL_COLLECT_DOWN    (GADGET_ID_COUNTER_FIRST + 15)
 269 #define GADGET_ID_LEVEL_COLLECT_TEXT    (GADGET_ID_COUNTER_FIRST + 16)
 270 #define GADGET_ID_LEVEL_COLLECT_UP      (GADGET_ID_COUNTER_FIRST + 17)
 271 #define GADGET_ID_LEVEL_TIMELIMIT_DOWN  (GADGET_ID_COUNTER_FIRST + 18)
 272 #define GADGET_ID_LEVEL_TIMELIMIT_TEXT  (GADGET_ID_COUNTER_FIRST + 19)
 273 #define GADGET_ID_LEVEL_TIMELIMIT_UP    (GADGET_ID_COUNTER_FIRST + 20)
 274 #define GADGET_ID_LEVEL_TIMESCORE_DOWN  (GADGET_ID_COUNTER_FIRST + 21)
 275 #define GADGET_ID_LEVEL_TIMESCORE_TEXT  (GADGET_ID_COUNTER_FIRST + 22)
 276 #define GADGET_ID_LEVEL_TIMESCORE_UP    (GADGET_ID_COUNTER_FIRST + 23)
 277 #define GADGET_ID_SELECT_LEVEL_DOWN     (GADGET_ID_COUNTER_FIRST + 24)
 278 #define GADGET_ID_SELECT_LEVEL_TEXT     (GADGET_ID_COUNTER_FIRST + 25)
 279 #define GADGET_ID_SELECT_LEVEL_UP       (GADGET_ID_COUNTER_FIRST + 26)
 280
 281 /* drawing area identifiers */
 282 #define GADGET_ID_DRAWING_AREA_FIRST    (GADGET_ID_COUNTER_FIRST + 27)
 283
 284 #define GADGET_ID_DRAWING_LEVEL         (GADGET_ID_DRAWING_AREA_FIRST + 0)
 285 #define GADGET_ID_ELEM_CONTENT_0        (GADGET_ID_DRAWING_AREA_FIRST + 1)
 286 #define GADGET_ID_ELEM_CONTENT_1        (GADGET_ID_DRAWING_AREA_FIRST + 2)
 287 #define GADGET_ID_ELEM_CONTENT_2        (GADGET_ID_DRAWING_AREA_FIRST + 3)
 288 #define GADGET_ID_ELEM_CONTENT_3        (GADGET_ID_DRAWING_AREA_FIRST + 4)
 289 #define GADGET_ID_ELEM_CONTENT_4        (GADGET_ID_DRAWING_AREA_FIRST + 5)
 290 #define GADGET_ID_ELEM_CONTENT_5        (GADGET_ID_DRAWING_AREA_FIRST + 6)
 291 #define GADGET_ID_ELEM_CONTENT_6        (GADGET_ID_DRAWING_AREA_FIRST + 7)
 292 #define GADGET_ID_ELEM_CONTENT_7        (GADGET_ID_DRAWING_AREA_FIRST + 8)
 293 #define GADGET_ID_AMOEBA_CONTENT        (GADGET_ID_DRAWING_AREA_FIRST + 9)
 294 #define GADGET_ID_CUSTOM_CHANGED        (GADGET_ID_DRAWING_AREA_FIRST + 10)
 295 #define GADGET_ID_RANDOM_BACKGROUND     (GADGET_ID_DRAWING_AREA_FIRST + 11)
 296
 297 /* text input identifiers */
 298 #define GADGET_ID_TEXT_INPUT_FIRST      (GADGET_ID_DRAWING_AREA_FIRST + 12)
 299
 300 #define GADGET_ID_LEVEL_NAME            (GADGET_ID_TEXT_INPUT_FIRST + 0)
 301 #define GADGET_ID_LEVEL_AUTHOR          (GADGET_ID_TEXT_INPUT_FIRST + 1)
 302
 303 /* selectbox identifiers */
 304 #define GADGET_ID_SELECTBOX_FIRST       (GADGET_ID_TEXT_INPUT_FIRST + 2)
 305
 306 #define GADGET_ID_CUSTOM_CHANGE_CAUSE   (GADGET_ID_SELECTBOX_FIRST + 0)
 307
 308 /* textbutton identifiers */
 309 #define GADGET_ID_TEXTBUTTON_FIRST      (GADGET_ID_SELECTBOX_FIRST + 1)
 310
 311 #define GADGET_ID_EDIT_PROPERTIES       (GADGET_ID_TEXTBUTTON_FIRST + 0)
 312 #define GADGET_ID_SHOW_DESCRIPTION      (GADGET_ID_TEXTBUTTON_FIRST + 1)
 313 #define GADGET_ID_EDIT_CUSTOM_CHANGE    (GADGET_ID_TEXTBUTTON_FIRST + 2)
 314
 315 /* gadgets for scrolling of drawing area */
 316 #define GADGET_ID_SCROLLING_FIRST       (GADGET_ID_TEXTBUTTON_FIRST + 3)
 317
 318 #define GADGET_ID_SCROLL_UP             (GADGET_ID_SCROLLING_FIRST + 0)
 319 #define GADGET_ID_SCROLL_DOWN           (GADGET_ID_SCROLLING_FIRST + 1)
 320 #define GADGET_ID_SCROLL_LEFT           (GADGET_ID_SCROLLING_FIRST + 2)
 321 #define GADGET_ID_SCROLL_RIGHT          (GADGET_ID_SCROLLING_FIRST + 3)
 322 #define GADGET_ID_SCROLL_HORIZONTAL     (GADGET_ID_SCROLLING_FIRST + 4)
 323 #define GADGET_ID_SCROLL_VERTICAL       (GADGET_ID_SCROLLING_FIRST + 5)
 324
 325 /* gadgets for scrolling element list */
 326 #define GADGET_ID_SCROLLING_LIST_FIRST  (GADGET_ID_SCROLLING_FIRST + 6)
 327
 328 #define GADGET_ID_SCROLL_LIST_UP        (GADGET_ID_SCROLLING_LIST_FIRST + 0)
 329 #define GADGET_ID_SCROLL_LIST_DOWN      (GADGET_ID_SCROLLING_LIST_FIRST + 1)
 330 #define GADGET_ID_SCROLL_LIST_VERTICAL  (GADGET_ID_SCROLLING_LIST_FIRST + 2)
 331
 332 /* buttons for level/element properties */
 333 #define GADGET_ID_CHECKBUTTON_FIRST     (GADGET_ID_SCROLLING_LIST_FIRST + 3)
 334
 335 #define GADGET_ID_RANDOM_PERCENTAGE     (GADGET_ID_CHECKBUTTON_FIRST + 0)
 336 #define GADGET_ID_RANDOM_QUANTITY       (GADGET_ID_CHECKBUTTON_FIRST + 1)
 337 #define GADGET_ID_RANDOM_RESTRICTED     (GADGET_ID_CHECKBUTTON_FIRST + 2)
 338 #define GADGET_ID_DOUBLE_SPEED          (GADGET_ID_CHECKBUTTON_FIRST + 3)
 339 #define GADGET_ID_GRAVITY               (GADGET_ID_CHECKBUTTON_FIRST + 4)
 340 #define GADGET_ID_STICK_ELEMENT         (GADGET_ID_CHECKBUTTON_FIRST + 5)
 341 #define GADGET_ID_EM_SLIPPERY_GEMS      (GADGET_ID_CHECKBUTTON_FIRST + 6)
 342 #define GADGET_ID_CUSTOM_INDESTRUCTIBLE (GADGET_ID_CHECKBUTTON_FIRST + 7)
 343 #define GADGET_ID_CUSTOM_CAN_FALL       (GADGET_ID_CHECKBUTTON_FIRST + 8)
 344 #define GADGET_ID_CUSTOM_CAN_SMASH      (GADGET_ID_CHECKBUTTON_FIRST + 9)
 345 #define GADGET_ID_CUSTOM_PUSHABLE       (GADGET_ID_CHECKBUTTON_FIRST + 10)
 346 #define GADGET_ID_CUSTOM_SLIPPERY       (GADGET_ID_CHECKBUTTON_FIRST + 11)
 347
 348 /* gadgets for buttons in element list */
 349 #define GADGET_ID_ELEMENTLIST_FIRST     (GADGET_ID_CHECKBUTTON_FIRST + 12)
 350 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 351                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 352
 353 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 354
 355 /* radio button numbers */
 356 #define RADIO_NR_NONE                   0
 357 #define RADIO_NR_DRAWING_TOOLBOX        1
 358 #define RADIO_NR_RANDOM_ELEMENTS        2
 359
 360 /* values for counter gadgets */
 361 #define ED_COUNTER_ID_ELEM_SCORE        0
 362 #define ED_COUNTER_ID_ELEM_CONTENT      1
 363 #define ED_COUNTER_ID_LEVEL_XSIZE       2
 364 #define ED_COUNTER_ID_LEVEL_YSIZE       3
 365 #define ED_COUNTER_ID_LEVEL_COLLECT     4
 366 #define ED_COUNTER_ID_LEVEL_TIMELIMIT   5
 367 #define ED_COUNTER_ID_LEVEL_TIMESCORE   6
 368 #define ED_COUNTER_ID_LEVEL_RANDOM      7
 369 #define ED_COUNTER_ID_SELECT_LEVEL      8
 370
 371 #define ED_NUM_COUNTERBUTTONS           9
 372
 373 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 374 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM
 375
 376 /* values for scrollbutton gadgets */
 377 #define ED_SCROLLBUTTON_ID_AREA_UP      0
 378 #define ED_SCROLLBUTTON_ID_AREA_DOWN    1
 379 #define ED_SCROLLBUTTON_ID_AREA_LEFT    2
 380 #define ED_SCROLLBUTTON_ID_AREA_RIGHT   3
 381 #define ED_SCROLLBUTTON_ID_LIST_UP      4
 382 #define ED_SCROLLBUTTON_ID_LIST_DOWN    5
 383
 384 #define ED_NUM_SCROLLBUTTONS            6
 385
 386 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 387 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 388
 389 /* values for scrollbar gadgets */
 390 #define ED_SCROLLBAR_ID_AREA_HORIZONTAL 0
 391 #define ED_SCROLLBAR_ID_AREA_VERTICAL   1
 392 #define ED_SCROLLBAR_ID_LIST_VERTICAL   2
 393
 394 #define ED_NUM_SCROLLBARS               3
 395
 396 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 397 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 398
 399 /* values for text input gadgets */
 400 #define ED_TEXTINPUT_ID_LEVEL_NAME      0
 401 #define ED_TEXTINPUT_ID_LEVEL_AUTHOR    1
 402
 403 #define ED_NUM_TEXTINPUT                2
 404
 405 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 406 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 407
 408 /* values for selectbox gadgets */
 409 #define ED_SELECTBOX_ID_CUSTOM_CHANGE_CAUSE     0
 410
 411 #define ED_NUM_SELECTBOX                        1
 412
 413 /* values for textbutton gadgets */
 414 #define ED_TEXTBUTTON_ID_EDIT_PROPERTIES        0
 415 #define ED_TEXTBUTTON_ID_SHOW_DESCRIPTION       1
 416 #define ED_TEXTBUTTON_ID_EDIT_CUSTOM_CHANGE     2
 417
 418 #define ED_NUM_TEXTBUTTON                       3
 419
 420 /* values for checkbutton gadgets */
 421 #define ED_CHECKBUTTON_ID_DOUBLE_SPEED          0
 422 #define ED_CHECKBUTTON_ID_GRAVITY               1
 423 #define ED_CHECKBUTTON_ID_RANDOM_RESTRICTED     2
 424 #define ED_CHECKBUTTON_ID_STICK_ELEMENT         3
 425 #define ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS      4
 426 #define ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE 5
 427 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL       6
 428 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH      7
 429 #define ED_CHECKBUTTON_ID_CUSTOM_PUSHABLE       8
 430 #define ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY       9
 431
 432 #define ED_NUM_CHECKBUTTONS                     10
 433
 434 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_DOUBLE_SPEED
 435 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
 436
 437 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
 438 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY
 439
 440 /* values for radiobutton gadgets */
 441 #define ED_RADIOBUTTON_ID_PERCENTAGE    0
 442 #define ED_RADIOBUTTON_ID_QUANTITY      1
 443
 444 #define ED_NUM_RADIOBUTTONS             2
 445
 446 #define ED_RADIOBUTTON_ID_LEVEL_FIRST   ED_RADIOBUTTON_ID_PERCENTAGE
 447 #define ED_RADIOBUTTON_ID_LEVEL_LAST    ED_RADIOBUTTON_ID_QUANTITY
 448
 449 /* values for CopyLevelToUndoBuffer() */
 450 #define UNDO_IMMEDIATE                  0
 451 #define UNDO_ACCUMULATE                 1
 452
 453 /* values for ClearEditorGadgetInfoText() and HandleGadgetInfoText() */
 454 #define INFOTEXT_XPOS                   SX
 455 #define INFOTEXT_YPOS                   (SY + SYSIZE - MINI_TILEX + 2)
 456 #define INFOTEXT_XSIZE                  SXSIZE
 457 #define INFOTEXT_YSIZE                  MINI_TILEX
 458
 459 static struct
 460 {
 461   char shortcut;
 462   char *text;
 463 } control_info[ED_NUM_CTRL_BUTTONS] =
 464 {
 465   { 's',        "draw single items"             },
 466   { 'd',        "draw connected items"          },
 467   { 'l',        "draw lines"                    },
 468   { 'a',        "draw arcs"                     },
 469   { 'r',        "draw outline rectangles"       },
 470   { 'R',        "draw filled rectangles"        },
 471   { '\0',       "wrap (rotate) level up"        },
 472   { 't',        "enter text elements"           },
 473   { 'f',        "flood fill"                    },
 474   { '\0',       "wrap (rotate) level left"      },
 475   { '?',        "properties of drawing element" },
 476   { '\0',       "wrap (rotate) level right"     },
 477   { '\0',       "random element placement"      },
 478   { 'b',        "grab brush"                    },
 479   { '\0',       "wrap (rotate) level down"      },
 480   { ',',        "pick drawing element"          },
 481   { 'U',        "undo last operation"           },
 482   { 'I',        "level properties"              },
 483   { 'S',        "save level"                    },
 484   { 'C',        "clear level"                   },
 485   { 'T',        "test level"                    },
 486   { 'E',        "exit level editor"             }
 487 };
 488
 489 /* values for random placement */
 490 #define RANDOM_USE_PERCENTAGE           0
 491 #define RANDOM_USE_QUANTITY             1
 492
 493 static int random_placement_value = 10;
 494 static int random_placement_method = RANDOM_USE_QUANTITY;
 495 static int random_placement_background_element = EL_SAND;
 496 static boolean random_placement_background_restricted = FALSE;
 497 static boolean stick_element_properties_window = FALSE;
 498
 499 static struct
 500 {
 501   boolean indestructible;
 502   boolean can_fall;
 503   boolean can_smash;
 504   boolean pushable;
 505   boolean slippery;
 506 } custom_element_properties[NUM_CUSTOM_ELEMENTS];
 507
 508 static struct
 509 {
 510   int x, y;
 511   int min_value, max_value;
 512   int gadget_id_down, gadget_id_up;
 513   int gadget_id_text;
 514   int *value;
 515   char *infotext_above, *infotext_right;
 516 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
 517 {
 518   {
 519     ED_COUNT_ELEM_SCORE_XPOS,           ED_COUNT_ELEM_SCORE_YPOS,
 520     MIN_SCORE,                          MAX_SCORE,
 521     GADGET_ID_ELEM_SCORE_DOWN,          GADGET_ID_ELEM_SCORE_UP,
 522     GADGET_ID_ELEM_SCORE_TEXT,
 523     NULL,                               /* will be set when used */
 524     "element score",                    NULL
 525   },
 526   {
 527     ED_COUNT_ELEM_CONTENT_XPOS,         ED_COUNT_ELEM_CONTENT_YPOS,
 528     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
 529     GADGET_ID_ELEM_CONTENT_DOWN,        GADGET_ID_ELEM_CONTENT_UP,
 530     GADGET_ID_ELEM_CONTENT_TEXT,
 531     &level.num_yam_contents,
 532     "element content",                  NULL
 533   },
 534   {
 535     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(2),
 536     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
 537     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
 538     GADGET_ID_LEVEL_XSIZE_TEXT,
 539     &level.fieldx,
 540     "playfield size",                   "width",
 541   },
 542   {
 543     ED_SETTINGS_XPOS + 2 * DXSIZE,      ED_COUNTER_YPOS(2),
 544     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
 545     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
 546     GADGET_ID_LEVEL_YSIZE_TEXT,
 547     &level.fieldy,
 548     NULL,                               "height",
 549   },
 550   {
 551     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(3),
 552     0,                                  999,
 553     GADGET_ID_LEVEL_COLLECT_DOWN,       GADGET_ID_LEVEL_COLLECT_UP,
 554     GADGET_ID_LEVEL_COLLECT_TEXT,
 555     &level.gems_needed,
 556     "number of emeralds to collect",    NULL
 557   },
 558   {
 559     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 560     0,                                  999,
 561     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
 562     GADGET_ID_LEVEL_TIMELIMIT_TEXT,
 563     &level.time,
 564     "time available to solve level",    "(0 => no time limit)"
 565   },
 566   {
 567     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(5),
 568     0,                                  255,
 569     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
 570     GADGET_ID_LEVEL_TIMESCORE_TEXT,
 571     &level.score[SC_ZEITBONUS],
 572     "score for each 10 seconds left",   NULL
 573   },
 574   {
 575     ED_SETTINGS_XPOS,                   ED_COUNTER2_YPOS(8),
 576     1,                                  100,
 577     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
 578     GADGET_ID_LEVEL_RANDOM_TEXT,
 579     &random_placement_value,
 580     "random element placement",         "in"
 581   },
 582   {
 583     DX + 5 - SX,                        DY + 3 - SY,
 584     1,                                  100,
 585     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
 586     GADGET_ID_SELECT_LEVEL_TEXT,
 587     &level_nr,
 588     NULL,                               NULL
 589   }
 590 };
 591
 592 static struct
 593 {
 594   int x, y;
 595   int gadget_id;
 596   int size;
 597   char *value;
 598   char *infotext;
 599 } textinput_info[ED_NUM_TEXTINPUT] =
 600 {
 601   {
 602     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(0),
 603     GADGET_ID_LEVEL_NAME,
 604     MAX_LEVEL_NAME_LEN,
 605     level.name,
 606     "Title"
 607   },
 608   {
 609     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(1),
 610     GADGET_ID_LEVEL_AUTHOR,
 611     MAX_LEVEL_AUTHOR_LEN,
 612     level.author,
 613     "Author"
 614   }
 615 };
 616
 617 static struct ValueTextInfo options_change_cause[] =
 618 {
 619   { 1,  "specified delay"       },
 620   { 2,  "impact (active)"       },
 621   { 3,  "impact (passive)"      },
 622   { 4,  "touched by player"     },
 623   { 5,  "pressed by player"     },
 624   { -1, NULL                    }
 625 };
 626 static int index_change_cause = 0;
 627
 628 static struct
 629 {
 630   int x, y;
 631   int gadget_id;
 632   int size;
 633   struct ValueTextInfo *options;
 634   int *index;
 635   char *text, *infotext;
 636 } selectbox_info[ED_NUM_SELECTBOX] =
 637 {
 638   {
 639     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(3),
 640     GADGET_ID_CUSTOM_CHANGE_CAUSE,
 641     17,
 642     options_change_cause, &index_change_cause,
 643     "test:", "test-selectbox entry"
 644   },
 645 };
 646
 647 static struct
 648 {
 649   int x, y;
 650   int gadget_id;
 651   int size;
 652   char *value;
 653   char *infotext;
 654 } textbutton_info[ED_NUM_TEXTBUTTON] =
 655 {
 656   {
 657     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(1),
 658     GADGET_ID_EDIT_PROPERTIES,
 659     11, "Properties",
 660     "Edit element properties"
 661   },
 662   {
 663     ED_SETTINGS_XPOS + 166,             ED_COUNTER_YPOS(1),
 664     GADGET_ID_SHOW_DESCRIPTION,
 665     11, "Description",
 666     "Show element description"
 667   },
 668   {
 669     ED_SETTINGS_XPOS + 332,             ED_COUNTER_YPOS(1),
 670     GADGET_ID_EDIT_CUSTOM_CHANGE,
 671     11, "Advanced",
 672     "Advanced element features"
 673   },
 674 };
 675
 676 static struct
 677 {
 678   int xpos, ypos;
 679   int x, y;
 680   int gadget_id;
 681   char *infotext;
 682 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
 683 {
 684   {
 685     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 0 * ED_SCROLLBUTTON_YSIZE,
 686     ED_SCROLL_UP_XPOS,      ED_SCROLL_UP_YPOS,
 687     GADGET_ID_SCROLL_UP,
 688     "scroll level editing area up"
 689   },
 690   {
 691     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 1 * ED_SCROLLBUTTON_YSIZE,
 692     ED_SCROLL_DOWN_XPOS,    ED_SCROLL_DOWN_YPOS,
 693     GADGET_ID_SCROLL_DOWN,
 694     "scroll level editing area down"
 695   },
 696   {
 697     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 2 * ED_SCROLLBUTTON_YSIZE,
 698     ED_SCROLL_LEFT_XPOS,    ED_SCROLL_LEFT_YPOS,
 699     GADGET_ID_SCROLL_LEFT,
 700     "scroll level editing area left"
 701   },
 702   {
 703     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 3 * ED_SCROLLBUTTON_YSIZE,
 704     ED_SCROLL_RIGHT_XPOS,   ED_SCROLL_RIGHT_YPOS,
 705     GADGET_ID_SCROLL_RIGHT,
 706     "scroll level editing area right"
 707   },
 708   {
 709     ED_SCROLLBUTTON2_XPOS,  ED_SCROLLBUTTON2_YPOS + 0 * ED_SCROLLBUTTON2_YSIZE,
 710     ED_SCROLL2_UP_XPOS,     ED_SCROLL2_UP_YPOS,
 711     GADGET_ID_SCROLL_LIST_UP,
 712     "scroll element list up ('Page Up')"
 713   },
 714   {
 715     ED_SCROLLBUTTON2_XPOS,  ED_SCROLLBUTTON2_YPOS + 1 * ED_SCROLLBUTTON2_YSIZE,
 716     ED_SCROLL2_DOWN_XPOS,    ED_SCROLL2_DOWN_YPOS,
 717     GADGET_ID_SCROLL_LIST_DOWN,
 718     "scroll element list down ('Page Down')"
 719   }
 720 };
 721
 722 static struct
 723 {
 724   int xpos, ypos;
 725   int x, y;
 726   int width, height;
 727   int type;
 728   int gadget_id;
 729   char *infotext;
 730 } scrollbar_info[ED_NUM_SCROLLBARS] =
 731 {
 732   {
 733     ED_SCROLLBAR_XPOS,                  ED_SCROLLBAR_YPOS,
 734     SX + ED_SCROLL_HORIZONTAL_XPOS,     SY + ED_SCROLL_HORIZONTAL_YPOS,
 735     ED_SCROLL_HORIZONTAL_XSIZE,         ED_SCROLL_HORIZONTAL_YSIZE,
 736     GD_TYPE_SCROLLBAR_HORIZONTAL,
 737     GADGET_ID_SCROLL_HORIZONTAL,
 738     "scroll level editing area horizontally"
 739   },
 740   {
 741     ED_SCROLLBAR_XPOS,                  ED_SCROLLBAR_YPOS,
 742     SX + ED_SCROLL_VERTICAL_XPOS,       SY + ED_SCROLL_VERTICAL_YPOS,
 743     ED_SCROLL_VERTICAL_XSIZE,           ED_SCROLL_VERTICAL_YSIZE,
 744     GD_TYPE_SCROLLBAR_VERTICAL,
 745     GADGET_ID_SCROLL_VERTICAL,
 746     "scroll level editing area vertically"
 747   },
 748   {
 749     ED_SCROLLBAR2_XPOS,                 ED_SCROLLBAR2_YPOS,
 750     DX + ED_SCROLL2_VERTICAL_XPOS,      DY + ED_SCROLL2_VERTICAL_YPOS,
 751     ED_SCROLL2_VERTICAL_XSIZE,          ED_SCROLL2_VERTICAL_YSIZE,
 752     GD_TYPE_SCROLLBAR_VERTICAL,
 753     GADGET_ID_SCROLL_LIST_VERTICAL,
 754     "scroll element list vertically"
 755   }
 756 };
 757
 758 static struct
 759 {
 760   int x, y;
 761   int gadget_id;
 762   int radio_button_nr;
 763   int *value;
 764   int checked_value;
 765   char *text, *infotext;
 766 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
 767 {
 768   {
 769     ED_SETTINGS_XPOS + 160,             ED_COUNTER2_YPOS(8),
 770     GADGET_ID_RANDOM_PERCENTAGE,
 771     RADIO_NR_RANDOM_ELEMENTS,
 772     &random_placement_method,           RANDOM_USE_PERCENTAGE,
 773     "percentage",                       "use percentage for random elements"
 774   },
 775   {
 776     ED_SETTINGS_XPOS + 340,             ED_COUNTER2_YPOS(8),
 777     GADGET_ID_RANDOM_QUANTITY,
 778     RADIO_NR_RANDOM_ELEMENTS,
 779     &random_placement_method,           RANDOM_USE_QUANTITY,
 780     "quantity",                         "use quantity for random elements"
 781   }
 782 };
 783
 784 static struct
 785 {
 786   int x, y;
 787   int gadget_id;
 788   boolean *value;
 789   char *text, *infotext;
 790 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
 791 {
 792   {
 793     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(6) - MINI_TILEY,
 794     GADGET_ID_DOUBLE_SPEED,
 795     &level.double_speed,
 796     "double speed movement",            "set movement speed of player"
 797   },
 798   {
 799     ED_SETTINGS_XPOS + 340,             ED_COUNTER_YPOS(6) - MINI_TILEY,
 800     GADGET_ID_GRAVITY,
 801     &level.gravity,
 802     "gravity",                          "set level gravity"
 803   },
 804   {
 805     ED_SETTINGS_XPOS,                   ED_COUNTER2_YPOS(9) - MINI_TILEY,
 806     GADGET_ID_RANDOM_RESTRICTED,
 807     &random_placement_background_restricted,
 808     "restrict random placement to",     "set random placement restriction"
 809   },
 810   {
 811     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 812     GADGET_ID_STICK_ELEMENT,
 813     &stick_element_properties_window,
 814     "stick window to edit content",     "stick window to edit content"
 815   },
 816   {
 817     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS(4),
 818     GADGET_ID_EM_SLIPPERY_GEMS,
 819     &level.em_slippery_gems,
 820     "slip down from certain flat walls","use EM style slipping behaviour"
 821   },
 822   {
 823     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS2(10),
 824     GADGET_ID_CUSTOM_INDESTRUCTIBLE,
 825     &custom_element_properties[0].indestructible,
 826     "indestructible",                   "element cannot be destroyed"
 827   },
 828   {
 829     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS2(11),
 830     GADGET_ID_CUSTOM_CAN_FALL,
 831     &custom_element_properties[0].can_fall,
 832     "can fall",                         "element can fall down"
 833   },
 834   {
 835     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS2(12),
 836     GADGET_ID_CUSTOM_CAN_SMASH,
 837     &custom_element_properties[0].can_smash,
 838     "can smash",                        "element can smash other elements"
 839   },
 840   {
 841     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS2(13),
 842     GADGET_ID_CUSTOM_PUSHABLE,
 843     &custom_element_properties[0].pushable,
 844     "pushable",                         "element can be pushed"
 845   },
 846   {
 847     ED_SETTINGS_XPOS,                   ED_COUNTER_YPOS2(14),
 848     GADGET_ID_CUSTOM_SLIPPERY,
 849     &custom_element_properties[0].slippery,
 850     "slippery",                         "other elements can fall down from it"
 851   }
 852 };
 853
 854 /* maximal size of level editor drawing area */
 855 #define MAX_ED_FIELDX           (2 * SCR_FIELDX)
 856 #define MAX_ED_FIELDY           (2 * SCR_FIELDY - 1)
 857
 858 /* actual size of level editor drawing area */
 859 static int ed_fieldx = MAX_ED_FIELDX - 1, ed_fieldy = MAX_ED_FIELDY - 1;
 860
 861 /* actual position of level editor drawing area in level playfield */
 862 static int level_xpos = -1, level_ypos = -1;
 863
 864 #define IN_ED_FIELD(x,y)  ((x)>=0 && (x)<ed_fieldx && (y)>=0 &&(y)<ed_fieldy)
 865
 866 /* drawing elements on the three mouse buttons */
 867 static int new_element1 = EL_WALL;
 868 static int new_element2 = EL_EMPTY;
 869 static int new_element3 = EL_SAND;
 870
 871 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
 872                                 (button) == 2 ? new_element2 : \
 873                                 (button) == 3 ? new_element3 : EL_EMPTY)
 874 #define BUTTON_STEPSIZE(button) ((button) == 1 ? 1 : (button) == 2 ? 5 : 10)
 875
 876 /* forward declaration for internal use */
 877 static void ModifyEditorCounter(int, int);
 878 static void ModifyEditorCounterLimits(int, int, int);
 879 static void DrawDrawingWindow();
 880 static void DrawLevelInfoWindow();
 881 static void DrawPropertiesWindow();
 882 static void CopyLevelToUndoBuffer(int);
 883 static void HandleDrawingAreas(struct GadgetInfo *);
 884 static void HandleCounterButtons(struct GadgetInfo *);
 885 static void HandleTextInputGadgets(struct GadgetInfo *);
 886 static void HandleSelectboxGadgets(struct GadgetInfo *);
 887 static void HandleTextbuttonGadgets(struct GadgetInfo *);
 888 static void HandleRadiobuttons(struct GadgetInfo *);
 889 static void HandleCheckbuttons(struct GadgetInfo *);
 890 static void HandleControlButtons(struct GadgetInfo *);
 891 static void HandleDrawingAreaInfo(struct GadgetInfo *);
 892
 893 static struct GadgetInfo *level_editor_gadget[NUM_EDITOR_GADGETS];
 894
 895 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
 896 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
 897 static boolean draw_with_brush = FALSE;
 898 static int properties_element = 0;
 899
 900 static short ElementContent[MAX_ELEMENT_CONTENTS][3][3];
 901 static short FieldBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 902 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 903 static int undo_buffer_position = 0;
 904 static int undo_buffer_steps = 0;
 905
 906 static int edit_mode;
 907
 908 static int element_shift = 0;
 909
 910 static int editor_el_boulderdash[] =
 911 {
 912   EL_CHAR('B'),
 913   EL_CHAR('O'),
 914   EL_CHAR('U'),
 915   EL_CHAR('L'),
 916
 917   EL_CHAR('-'),
 918   EL_CHAR('D'),
 919   EL_CHAR('E'),
 920   EL_CHAR('R'),
 921
 922   EL_CHAR('D'),
 923   EL_CHAR('A'),
 924   EL_CHAR('S'),
 925   EL_CHAR('H'),
 926
 927   EL_PLAYER_1,
 928   EL_EMPTY,
 929   EL_SAND,
 930   EL_STEELWALL,
 931
 932   EL_BD_WALL,
 933   EL_BD_MAGIC_WALL,
 934   EL_EXIT_CLOSED,
 935   EL_EXIT_OPEN,
 936
 937   EL_BD_DIAMOND,
 938   EL_BD_BUTTERFLY_UP,
 939   EL_BD_FIREFLY_UP,
 940   EL_BD_ROCK,
 941
 942   EL_BD_BUTTERFLY_LEFT,
 943   EL_BD_FIREFLY_LEFT,
 944   EL_BD_BUTTERFLY_RIGHT,
 945   EL_BD_FIREFLY_RIGHT,
 946
 947   EL_BD_AMOEBA,
 948   EL_BD_BUTTERFLY_DOWN,
 949   EL_BD_FIREFLY_DOWN,
 950   EL_EMPTY,
 951 };
 952 static int num_editor_el_boulderdash = SIZEOF_ARRAY_INT(editor_el_boulderdash);
 953
 954 static int editor_el_emerald_mine[] =
 955 {
 956   EL_CHAR('E'),
 957   EL_CHAR('M'),
 958   EL_CHAR('E'),
 959   EL_CHAR('-'),
 960
 961   EL_CHAR('R'),
 962   EL_CHAR('A'),
 963   EL_CHAR('L'),
 964   EL_CHAR('D'),
 965
 966   EL_CHAR('M'),
 967   EL_CHAR('I'),
 968   EL_CHAR('N'),
 969   EL_CHAR('E'),
 970
 971   EL_PLAYER_1,
 972   EL_PLAYER_2,
 973   EL_PLAYER_3,
 974   EL_PLAYER_4,
 975
 976   EL_PLAYER_1,
 977   EL_EMPTY,
 978   EL_SAND,
 979   EL_ROCK,
 980
 981   EL_STEELWALL,
 982   EL_WALL,
 983   EL_WALL_CRUMBLED,
 984   EL_MAGIC_WALL,
 985
 986   EL_EMERALD,
 987   EL_DIAMOND,
 988   EL_NUT,
 989   EL_BOMB,
 990
 991   EL_WALL_EMERALD,
 992   EL_WALL_DIAMOND,
 993   EL_QUICKSAND_EMPTY,
 994   EL_QUICKSAND_FULL,
 995
 996   EL_DYNAMITE,
 997   EL_DYNAMITE_ACTIVE,
 998   EL_EXIT_CLOSED,
 999   EL_EXIT_OPEN,
1000
1001   EL_YAMYAM,
1002   EL_BUG_UP,
1003   EL_SPACESHIP_UP,
1004   EL_ROBOT,
1005
1006   EL_BUG_LEFT,
1007   EL_SPACESHIP_LEFT,
1008   EL_BUG_RIGHT,
1009   EL_SPACESHIP_RIGHT,
1010
1011   EL_ROBOT_WHEEL,
1012   EL_BUG_DOWN,
1013   EL_SPACESHIP_DOWN,
1014   EL_INVISIBLE_WALL,
1015
1016   EL_ACID_POOL_TOPLEFT,
1017   EL_ACID,
1018   EL_ACID_POOL_TOPRIGHT,
1019   EL_EMPTY,
1020
1021   EL_ACID_POOL_BOTTOMLEFT,
1022   EL_ACID_POOL_BOTTOM,
1023   EL_ACID_POOL_BOTTOMRIGHT,
1024   EL_EMPTY,
1025
1026   EL_AMOEBA_DROP,
1027   EL_AMOEBA_DEAD,
1028   EL_AMOEBA_WET,
1029   EL_AMOEBA_DRY,
1030
1031   EL_EM_KEY_1_FILE,
1032   EL_EM_KEY_2_FILE,
1033   EL_EM_KEY_3_FILE,
1034   EL_EM_KEY_4_FILE,
1035
1036   EL_EM_GATE_1,
1037   EL_EM_GATE_2,
1038   EL_EM_GATE_3,
1039   EL_EM_GATE_4,
1040
1041   EL_EM_GATE_1_GRAY,
1042   EL_EM_GATE_2_GRAY,
1043   EL_EM_GATE_3_GRAY,
1044   EL_EM_GATE_4_GRAY,
1045 };
1046 static int num_editor_el_emerald_mine = SIZEOF_ARRAY_INT(editor_el_emerald_mine);
1047
1048 static int editor_el_more[] =
1049 {
1050   EL_CHAR('M'),
1051   EL_CHAR('O'),
1052   EL_CHAR('R'),
1053   EL_CHAR('E'),
1054
1055   EL_KEY_1,
1056   EL_KEY_2,
1057   EL_KEY_3,
1058   EL_KEY_4,
1059
1060   EL_GATE_1,
1061   EL_GATE_2,
1062   EL_GATE_3,
1063   EL_GATE_4,
1064
1065   EL_GATE_1_GRAY,
1066   EL_GATE_2_GRAY,
1067   EL_GATE_3_GRAY,
1068   EL_GATE_4_GRAY,
1069
1070   EL_ARROW_LEFT,
1071   EL_ARROW_RIGHT,
1072   EL_ARROW_UP,
1073   EL_ARROW_DOWN,
1074
1075   EL_AMOEBA_FULL,
1076   EL_EMERALD_YELLOW,
1077   EL_EMERALD_RED,
1078   EL_EMERALD_PURPLE,
1079
1080   EL_WALL_BD_DIAMOND,
1081   EL_WALL_EMERALD_YELLOW,
1082   EL_WALL_EMERALD_RED,
1083   EL_WALL_EMERALD_PURPLE,
1084
1085   EL_GAME_OF_LIFE,
1086   EL_PACMAN_UP,
1087   EL_TIME_ORB_FULL,
1088   EL_TIME_ORB_EMPTY,
1089
1090   EL_PACMAN_LEFT,
1091   EL_DARK_YAMYAM,
1092   EL_PACMAN_RIGHT,
1093   EL_EXPANDABLE_WALL,
1094
1095   EL_BIOMAZE,
1096   EL_PACMAN_DOWN,
1097   EL_LAMP,
1098   EL_LAMP_ACTIVE,
1099
1100   EL_DYNABOMB_INCREASE_NUMBER,
1101   EL_DYNABOMB_INCREASE_SIZE,
1102   EL_DYNABOMB_INCREASE_POWER,
1103   EL_STONEBLOCK,
1104
1105   EL_MOLE,
1106   EL_PENGUIN,
1107   EL_PIG,
1108   EL_DRAGON,
1109
1110   EL_EMPTY,
1111   EL_MOLE_UP,
1112   EL_EMPTY,
1113   EL_EMPTY,
1114
1115   EL_MOLE_LEFT,
1116   EL_EMPTY,
1117   EL_MOLE_RIGHT,
1118   EL_EMPTY,
1119
1120   EL_EMPTY,
1121   EL_MOLE_DOWN,
1122   EL_BALLOON,
1123   EL_BALLOON_SWITCH_ANY,
1124
1125   EL_BALLOON_SWITCH_LEFT,
1126   EL_BALLOON_SWITCH_RIGHT,
1127   EL_BALLOON_SWITCH_UP,
1128   EL_BALLOON_SWITCH_DOWN,
1129
1130   EL_SATELLITE,
1131   EL_EXPANDABLE_WALL_HORIZONTAL,
1132   EL_EXPANDABLE_WALL_VERTICAL,
1133   EL_EXPANDABLE_WALL_ANY,
1134
1135   EL_INVISIBLE_STEELWALL,
1136   EL_INVISIBLE_WALL,
1137   EL_SPEED_PILL,
1138   EL_BLACK_ORB,
1139
1140   EL_EMC_STEELWALL_1,
1141   EL_EMC_WALL_1,
1142   EL_EMC_WALL_2,
1143   EL_EMC_WALL_3,
1144
1145   EL_EMC_WALL_4,
1146   EL_EMC_WALL_5,
1147   EL_EMC_WALL_6,
1148   EL_EMC_WALL_7,
1149 };
1150 static int num_editor_el_more = SIZEOF_ARRAY_INT(editor_el_more);
1151
1152 static int editor_el_sokoban[] =
1153 {
1154   EL_CHAR('S'),
1155   EL_CHAR('O'),
1156   EL_CHAR('K'),
1157   EL_CHAR('O'),
1158
1159   EL_CHAR('-'),
1160   EL_CHAR('B'),
1161   EL_CHAR('A'),
1162   EL_CHAR('N'),
1163
1164   EL_SOKOBAN_OBJECT,
1165   EL_SOKOBAN_FIELD_EMPTY,
1166   EL_SOKOBAN_FIELD_FULL,
1167   EL_STEELWALL,
1168 };
1169 static int num_editor_el_sokoban = SIZEOF_ARRAY_INT(editor_el_sokoban);
1170
1171 static int editor_el_supaplex[] =
1172 {
1173   EL_CHAR('S'),
1174   EL_CHAR('U'),
1175   EL_CHAR('P'),
1176   EL_CHAR('A'),
1177
1178   EL_CHAR('P'),
1179   EL_CHAR('L'),
1180   EL_CHAR('E'),
1181   EL_CHAR('X'),
1182
1183   EL_SP_EMPTY,
1184   EL_SP_ZONK,
1185   EL_SP_BASE,
1186   EL_SP_MURPHY,
1187
1188   EL_SP_INFOTRON,
1189   EL_SP_CHIP_SINGLE,
1190   EL_SP_HARDWARE_GRAY,
1191   EL_SP_EXIT_CLOSED,
1192
1193   EL_SP_DISK_ORANGE,
1194   EL_SP_PORT_RIGHT,
1195   EL_SP_PORT_DOWN,
1196   EL_SP_PORT_LEFT,
1197
1198   EL_SP_PORT_UP,
1199   EL_SP_GRAVITY_PORT_RIGHT,
1200   EL_SP_GRAVITY_PORT_DOWN,
1201   EL_SP_GRAVITY_PORT_LEFT,
1202
1203   EL_SP_GRAVITY_PORT_UP,
1204   EL_SP_SNIKSNAK,
1205   EL_SP_DISK_YELLOW,
1206   EL_SP_TERMINAL,
1207
1208   EL_SP_DISK_RED,
1209   EL_SP_PORT_VERTICAL,
1210   EL_SP_PORT_HORIZONTAL,
1211   EL_SP_PORT_ANY,
1212
1213   EL_SP_ELECTRON,
1214   EL_SP_BUGGY_BASE,
1215   EL_SP_CHIP_LEFT,
1216   EL_SP_CHIP_RIGHT,
1217
1218   EL_SP_HARDWARE_BASE_1,
1219   EL_SP_HARDWARE_GREEN,
1220   EL_SP_HARDWARE_BLUE,
1221   EL_SP_HARDWARE_RED,
1222
1223   EL_SP_HARDWARE_YELLOW,
1224   EL_SP_HARDWARE_BASE_2,
1225   EL_SP_HARDWARE_BASE_3,
1226   EL_SP_HARDWARE_BASE_4,
1227
1228   EL_SP_HARDWARE_BASE_5,
1229   EL_SP_HARDWARE_BASE_6,
1230   EL_SP_CHIP_TOP,
1231   EL_SP_CHIP_BOTTOM,
1232 };
1233 static int num_editor_el_supaplex = SIZEOF_ARRAY_INT(editor_el_supaplex);
1234
1235 static int editor_el_diamond_caves[] =
1236 {
1237   EL_CHAR('D'),
1238   EL_CHAR('I'),
1239   EL_CHAR('A'),
1240   EL_CHAR('-'),
1241
1242   EL_CHAR('M'),
1243   EL_CHAR('O'),
1244   EL_CHAR('N'),
1245   EL_CHAR('D'),
1246
1247   EL_CHAR('C'),
1248   EL_CHAR('A'),
1249   EL_CHAR('V'),
1250   EL_CHAR('E'),
1251
1252   EL_CHAR('S'),
1253   EL_CHAR(' '),
1254   EL_CHAR('I'),
1255   EL_CHAR('I'),
1256
1257   EL_PEARL,
1258   EL_CRYSTAL,
1259   EL_WALL_PEARL,
1260   EL_WALL_CRYSTAL,
1261
1262   EL_CONVEYOR_BELT_1_LEFT,
1263   EL_CONVEYOR_BELT_1_MIDDLE,
1264   EL_CONVEYOR_BELT_1_RIGHT,
1265   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1266
1267   EL_CONVEYOR_BELT_2_LEFT,
1268   EL_CONVEYOR_BELT_2_MIDDLE,
1269   EL_CONVEYOR_BELT_2_RIGHT,
1270   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1271
1272   EL_CONVEYOR_BELT_3_LEFT,
1273   EL_CONVEYOR_BELT_3_MIDDLE,
1274   EL_CONVEYOR_BELT_3_RIGHT,
1275   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1276
1277   EL_CONVEYOR_BELT_4_LEFT,
1278   EL_CONVEYOR_BELT_4_MIDDLE,
1279   EL_CONVEYOR_BELT_4_RIGHT,
1280   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1281
1282   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1283   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1284   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1285   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1286
1287   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1288   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1289   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1290   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1291
1292   EL_SWITCHGATE_OPEN,
1293   EL_SWITCHGATE_CLOSED,
1294   EL_SWITCHGATE_SWITCH_UP,
1295   EL_ENVELOPE,
1296
1297   EL_TIMEGATE_CLOSED,
1298   EL_TIMEGATE_OPEN,
1299   EL_TIMEGATE_SWITCH,
1300   EL_EMPTY,
1301
1302   EL_LANDMINE,
1303   EL_INVISIBLE_SAND,
1304   EL_STEELWALL_SLANTED,
1305   EL_EMPTY,
1306
1307   EL_SIGN_EXCLAMATION,
1308   EL_SIGN_STOP,
1309   EL_LIGHT_SWITCH,
1310   EL_LIGHT_SWITCH_ACTIVE,
1311
1312   EL_SHIELD_NORMAL,
1313   EL_SHIELD_DEADLY,
1314   EL_EXTRA_TIME,
1315   EL_EMPTY,
1316 };
1317 static int num_editor_el_diamond_caves = SIZEOF_ARRAY_INT(editor_el_diamond_caves);
1318
1319 static int editor_el_dx_boulderdash[] =
1320 {
1321   EL_CHAR('D'),
1322   EL_CHAR('X'),
1323   EL_CHAR('-'),
1324   EL_CHAR(' '),
1325
1326   EL_CHAR('B'),
1327   EL_CHAR('O'),
1328   EL_CHAR('U'),
1329   EL_CHAR('L'),
1330
1331   EL_CHAR('-'),
1332   EL_CHAR('D'),
1333   EL_CHAR('E'),
1334   EL_CHAR('R'),
1335
1336   EL_CHAR('D'),
1337   EL_CHAR('A'),
1338   EL_CHAR('S'),
1339   EL_CHAR('H'),
1340
1341   EL_SPRING,
1342   EL_TUBE_RIGHT_DOWN,
1343   EL_TUBE_HORIZONTAL_DOWN,
1344   EL_TUBE_LEFT_DOWN,
1345
1346   EL_TUBE_HORIZONTAL,
1347   EL_TUBE_VERTICAL_RIGHT,
1348   EL_TUBE_ANY,
1349   EL_TUBE_VERTICAL_LEFT,
1350
1351   EL_TUBE_VERTICAL,
1352   EL_TUBE_RIGHT_UP,
1353   EL_TUBE_HORIZONTAL_UP,
1354   EL_TUBE_LEFT_UP,
1355
1356   EL_TRAP,
1357   EL_DX_SUPABOMB,
1358   EL_EMPTY,
1359   EL_EMPTY
1360 };
1361 static int num_editor_el_dx_boulderdash = SIZEOF_ARRAY_INT(editor_el_dx_boulderdash);
1362
1363 static int editor_el_chars[] =
1364 {
1365   EL_CHAR('T'),
1366   EL_CHAR('E'),
1367   EL_CHAR('X'),
1368   EL_CHAR('T'),
1369
1370   EL_CHAR(' '),
1371   EL_CHAR('!'),
1372   EL_CHAR('"'),
1373   EL_CHAR('#'),
1374
1375   EL_CHAR('$'),
1376   EL_CHAR('%'),
1377   EL_CHAR('&'),
1378   EL_CHAR('\''),
1379
1380   EL_CHAR('('),
1381   EL_CHAR(')'),
1382   EL_CHAR('*'),
1383   EL_CHAR('+'),
1384
1385   EL_CHAR(','),
1386   EL_CHAR('-'),
1387   EL_CHAR('.'),
1388   EL_CHAR('/'),
1389
1390   EL_CHAR('0'),
1391   EL_CHAR('1'),
1392   EL_CHAR('2'),
1393   EL_CHAR('3'),
1394
1395   EL_CHAR('4'),
1396   EL_CHAR('5'),
1397   EL_CHAR('6'),
1398   EL_CHAR('7'),
1399
1400   EL_CHAR('8'),
1401   EL_CHAR('9'),
1402   EL_CHAR(':'),
1403   EL_CHAR(';'),
1404
1405   EL_CHAR('<'),
1406   EL_CHAR('='),
1407   EL_CHAR('>'),
1408   EL_CHAR('?'),
1409
1410   EL_CHAR('@'),
1411   EL_CHAR('A'),
1412   EL_CHAR('B'),
1413   EL_CHAR('C'),
1414
1415   EL_CHAR('D'),
1416   EL_CHAR('E'),
1417   EL_CHAR('F'),
1418   EL_CHAR('G'),
1419
1420   EL_CHAR('H'),
1421   EL_CHAR('I'),
1422   EL_CHAR('J'),
1423   EL_CHAR('K'),
1424
1425   EL_CHAR('L'),
1426   EL_CHAR('M'),
1427   EL_CHAR('N'),
1428   EL_CHAR('O'),
1429
1430   EL_CHAR('P'),
1431   EL_CHAR('Q'),
1432   EL_CHAR('R'),
1433   EL_CHAR('S'),
1434
1435   EL_CHAR('T'),
1436   EL_CHAR('U'),
1437   EL_CHAR('V'),
1438   EL_CHAR('W'),
1439
1440   EL_CHAR('X'),
1441   EL_CHAR('Y'),
1442   EL_CHAR('Z'),
1443   EL_CHAR('['),
1444
1445   EL_CHAR('\\'),
1446   EL_CHAR(']'),
1447   EL_CHAR('^'),
1448   EL_CHAR('_'),
1449
1450   EL_CHAR('©'),
1451   EL_CHAR('Ä'),
1452   EL_CHAR('Ö'),
1453   EL_CHAR('Ü'),
1454
1455   EL_CHAR('°'),
1456   EL_CHAR('®'),
1457   EL_CHAR(FONT_ASCII_CURSOR),
1458   EL_CHAR(' ')
1459 };
1460 static int num_editor_el_chars = SIZEOF_ARRAY_INT(editor_el_chars);
1461
1462 static int editor_el_custom[] =
1463 {
1464   EL_CHAR('C'),
1465   EL_CHAR('U'),
1466   EL_CHAR('S'),
1467   EL_CHAR('-'),
1468
1469   EL_CHAR('T'),
1470   EL_CHAR('O'),
1471   EL_CHAR('M'),
1472   EL_CHAR(' '),
1473
1474   EL_CHAR('E'),
1475   EL_CHAR('L'),
1476   EL_CHAR('E'),
1477   EL_CHAR('M'),
1478
1479   EL_CHAR('E'),
1480   EL_CHAR('N'),
1481   EL_CHAR('T'),
1482   EL_CHAR('S'),
1483
1484   EL_CUSTOM_START + 0,
1485   EL_CUSTOM_START + 1,
1486   EL_CUSTOM_START + 2,
1487   EL_CUSTOM_START + 3,
1488
1489   EL_CUSTOM_START + 4,
1490   EL_CUSTOM_START + 5,
1491   EL_CUSTOM_START + 6,
1492   EL_CUSTOM_START + 7,
1493
1494   EL_CUSTOM_START + 8,
1495   EL_CUSTOM_START + 9,
1496   EL_CUSTOM_START + 10,
1497   EL_CUSTOM_START + 11,
1498
1499   EL_CUSTOM_START + 12,
1500   EL_CUSTOM_START + 13,
1501   EL_CUSTOM_START + 14,
1502   EL_CUSTOM_START + 15,
1503
1504   EL_CUSTOM_START + 16,
1505   EL_CUSTOM_START + 17,
1506   EL_CUSTOM_START + 18,
1507   EL_CUSTOM_START + 19,
1508
1509   EL_CUSTOM_START + 20,
1510   EL_CUSTOM_START + 21,
1511   EL_CUSTOM_START + 22,
1512   EL_CUSTOM_START + 23,
1513
1514   EL_CUSTOM_START + 24,
1515   EL_CUSTOM_START + 25,
1516   EL_CUSTOM_START + 26,
1517   EL_CUSTOM_START + 27,
1518
1519   EL_CUSTOM_START + 28,
1520   EL_CUSTOM_START + 29,
1521   EL_CUSTOM_START + 30,
1522   EL_CUSTOM_START + 31,
1523
1524   EL_CUSTOM_START + 32,
1525   EL_CUSTOM_START + 33,
1526   EL_CUSTOM_START + 34,
1527   EL_CUSTOM_START + 35,
1528
1529   EL_CUSTOM_START + 36,
1530   EL_CUSTOM_START + 37,
1531   EL_CUSTOM_START + 38,
1532   EL_CUSTOM_START + 39,
1533
1534   EL_CUSTOM_START + 40,
1535   EL_CUSTOM_START + 41,
1536   EL_CUSTOM_START + 42,
1537   EL_CUSTOM_START + 43,
1538
1539   EL_CUSTOM_START + 44,
1540   EL_CUSTOM_START + 45,
1541   EL_CUSTOM_START + 46,
1542   EL_CUSTOM_START + 47,
1543
1544   EL_CUSTOM_START + 48,
1545   EL_CUSTOM_START + 49,
1546   EL_CUSTOM_START + 50,
1547   EL_CUSTOM_START + 51,
1548
1549   EL_CUSTOM_START + 52,
1550   EL_CUSTOM_START + 53,
1551   EL_CUSTOM_START + 54,
1552   EL_CUSTOM_START + 55,
1553
1554   EL_CUSTOM_START + 56,
1555   EL_CUSTOM_START + 57,
1556   EL_CUSTOM_START + 58,
1557   EL_CUSTOM_START + 59,
1558
1559   EL_CUSTOM_START + 60,
1560   EL_CUSTOM_START + 61,
1561   EL_CUSTOM_START + 62,
1562   EL_CUSTOM_START + 63,
1563
1564   EL_CUSTOM_START + 64,
1565   EL_CUSTOM_START + 65,
1566   EL_CUSTOM_START + 66,
1567   EL_CUSTOM_START + 67,
1568
1569   EL_CUSTOM_START + 68,
1570   EL_CUSTOM_START + 69,
1571   EL_CUSTOM_START + 70,
1572   EL_CUSTOM_START + 71,
1573
1574   EL_CUSTOM_START + 72,
1575   EL_CUSTOM_START + 73,
1576   EL_CUSTOM_START + 74,
1577   EL_CUSTOM_START + 75,
1578
1579   EL_CUSTOM_START + 76,
1580   EL_CUSTOM_START + 77,
1581   EL_CUSTOM_START + 78,
1582   EL_CUSTOM_START + 79,
1583
1584   EL_CUSTOM_START + 80,
1585   EL_CUSTOM_START + 81,
1586   EL_CUSTOM_START + 82,
1587   EL_CUSTOM_START + 83,
1588
1589   EL_CUSTOM_START + 84,
1590   EL_CUSTOM_START + 85,
1591   EL_CUSTOM_START + 86,
1592   EL_CUSTOM_START + 87,
1593
1594   EL_CUSTOM_START + 88,
1595   EL_CUSTOM_START + 89,
1596   EL_CUSTOM_START + 90,
1597   EL_CUSTOM_START + 91,
1598
1599   EL_CUSTOM_START + 92,
1600   EL_CUSTOM_START + 93,
1601   EL_CUSTOM_START + 94,
1602   EL_CUSTOM_START + 95,
1603
1604   EL_CUSTOM_START + 96,
1605   EL_CUSTOM_START + 97,
1606   EL_CUSTOM_START + 98,
1607   EL_CUSTOM_START + 99,
1608
1609   EL_CUSTOM_START + 100,
1610   EL_CUSTOM_START + 101,
1611   EL_CUSTOM_START + 102,
1612   EL_CUSTOM_START + 103,
1613
1614   EL_CUSTOM_START + 104,
1615   EL_CUSTOM_START + 105,
1616   EL_CUSTOM_START + 106,
1617   EL_CUSTOM_START + 107,
1618
1619   EL_CUSTOM_START + 108,
1620   EL_CUSTOM_START + 109,
1621   EL_CUSTOM_START + 110,
1622   EL_CUSTOM_START + 111,
1623
1624   EL_CUSTOM_START + 112,
1625   EL_CUSTOM_START + 113,
1626   EL_CUSTOM_START + 114,
1627   EL_CUSTOM_START + 115,
1628
1629   EL_CUSTOM_START + 116,
1630   EL_CUSTOM_START + 117,
1631   EL_CUSTOM_START + 118,
1632   EL_CUSTOM_START + 119,
1633
1634   EL_CUSTOM_START + 120,
1635   EL_CUSTOM_START + 121,
1636   EL_CUSTOM_START + 122,
1637   EL_CUSTOM_START + 123,
1638
1639   EL_CUSTOM_START + 124,
1640   EL_CUSTOM_START + 125,
1641   EL_CUSTOM_START + 126,
1642   EL_CUSTOM_START + 127
1643 };
1644 static int num_editor_el_custom = SIZEOF_ARRAY_INT(editor_el_custom);
1645
1646 static int *editor_elements = NULL;     /* dynamically allocated */
1647 static int num_editor_elements = 0;     /* dynamically determined */
1648
1649 static struct
1650 {
1651   boolean *setup_value;
1652   int *element_list;
1653   int *element_list_size;
1654
1655   boolean last_setup_value;
1656 }
1657 editor_elements_info[] =
1658 {
1659   { &setup.editor.el_boulderdash,       editor_el_boulderdash,
1660     &num_editor_el_boulderdash                                          },
1661   { &setup.editor.el_emerald_mine,      editor_el_emerald_mine,
1662     &num_editor_el_emerald_mine                                         },
1663   { &setup.editor.el_more,              editor_el_more,
1664     &num_editor_el_more                                                 },
1665   { &setup.editor.el_sokoban,           editor_el_sokoban,
1666     &num_editor_el_sokoban                                              },
1667   { &setup.editor.el_supaplex,          editor_el_supaplex,
1668     &num_editor_el_supaplex                                             },
1669   { &setup.editor.el_diamond_caves,     editor_el_diamond_caves,
1670     &num_editor_el_diamond_caves                                        },
1671   { &setup.editor.el_dx_boulderdash,    editor_el_dx_boulderdash,
1672     &num_editor_el_dx_boulderdash                                       },
1673   { &setup.editor.el_chars,             editor_el_chars,
1674     &num_editor_el_chars                                                },
1675   { &setup.editor.el_custom,            editor_el_custom,
1676     &num_editor_el_custom                                               },
1677   { NULL,                               NULL,
1678     NULL                                                                }
1679 };
1680
1681 static void ReinitializeElementList()
1682 {
1683   int pos = 0;
1684   int i, j;
1685
1686   if (editor_elements != NULL)
1687     free(editor_elements);
1688
1689   num_editor_elements = 0;
1690
1691   /* determine size of element list */
1692   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1693     if (*editor_elements_info[i].setup_value)
1694       num_editor_elements += *editor_elements_info[i].element_list_size;
1695
1696   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
1697   {
1698     /* workaround: offer at least as many elements as element buttons exist */
1699     int list_nr = 1;    /* see above: editor_elements_info for Emerald Mine */
1700
1701     *editor_elements_info[list_nr].setup_value = TRUE;
1702     num_editor_elements += *editor_elements_info[list_nr].element_list_size;
1703   }
1704
1705   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
1706
1707   /* fill element list */
1708   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1709     if (*editor_elements_info[i].setup_value)
1710       for (j=0; j<*editor_elements_info[i].element_list_size; j++)
1711         editor_elements[pos++] = editor_elements_info[i].element_list[j];
1712 }
1713
1714 static void ReinitializeElementListButtons()
1715 {
1716   static boolean initialization_needed = TRUE;
1717   int i;
1718
1719   if (!initialization_needed)   /* check if editor element setup has changed */
1720     for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1721       if (editor_elements_info[i].last_setup_value !=
1722           *editor_elements_info[i].setup_value)
1723         initialization_needed = TRUE;
1724
1725   if (!initialization_needed)
1726     return;
1727
1728   FreeLevelEditorGadgets();
1729   CreateLevelEditorGadgets();
1730
1731   /* store current setup values for next invocation of this function */
1732   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
1733     editor_elements_info[i].last_setup_value =
1734       *editor_elements_info[i].setup_value;
1735
1736   initialization_needed = FALSE;
1737 }
1738
1739 static int getCounterGadgetWidth()
1740 {
1741   return (DXSIZE + getFontWidth(FONT_INPUT_1) - 2 * ED_GADGET_DISTANCE);
1742 }
1743
1744 static int getMaxInfoTextLength()
1745 {
1746   return (SXSIZE / getFontWidth(FONT_TEXT_2));
1747 }
1748
1749 static char *getElementInfoText(int element)
1750 {
1751   char *info_text = NULL;
1752
1753   if (element < NUM_FILE_ELEMENTS)
1754   {
1755     if (element_info[element].custom_description != NULL)
1756       info_text = element_info[element].custom_description;
1757     else if (element_info[element].editor_description != NULL)
1758       info_text = element_info[element].editor_description;
1759   }
1760
1761   if (info_text == NULL)
1762   {
1763     info_text = "unknown";
1764
1765     Error(ERR_WARN, "no element description for element %d", element);
1766   }
1767
1768   return info_text;
1769 }
1770
1771 static void ScrollMiniLevel(int from_x, int from_y, int scroll)
1772 {
1773   int x,y;
1774   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
1775   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
1776
1777   BlitBitmap(drawto, drawto,
1778              SX + (dx == -1 ? MINI_TILEX : 0),
1779              SY + (dy == -1 ? MINI_TILEY : 0),
1780              (ed_fieldx * MINI_TILEX) - (dx != 0 ? MINI_TILEX : 0),
1781              (ed_fieldy * MINI_TILEY) - (dy != 0 ? MINI_TILEY : 0),
1782              SX + (dx == +1 ? MINI_TILEX : 0),
1783              SY + (dy == +1 ? MINI_TILEY : 0));
1784   if (dx)
1785   {
1786     x = (dx == 1 ? 0 : ed_fieldx - 1);
1787     for(y=0; y<ed_fieldy; y++)
1788       DrawMiniElementOrWall(x, y, from_x, from_y);
1789   }
1790   else if (dy)
1791   {
1792     y = (dy == 1 ? 0 : ed_fieldy - 1);
1793     for(x=0; x<ed_fieldx; x++)
1794       DrawMiniElementOrWall(x, y, from_x, from_y);
1795   }
1796
1797   redraw_mask |= REDRAW_FIELD;
1798   BackToFront();
1799 }
1800
1801 static void CreateControlButtons()
1802 {
1803   Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
1804   struct GadgetInfo *gi;
1805   unsigned long event_mask;
1806   int i;
1807
1808   /* create toolbox buttons */
1809   for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
1810   {
1811     int id = i;
1812     int width, height;
1813     int gd_xoffset, gd_yoffset;
1814     int gd_x1, gd_x2, gd_y1, gd_y2;
1815     int button_type;
1816     int radio_button_nr;
1817     boolean checked;
1818
1819     if (id == GADGET_ID_SINGLE_ITEMS ||
1820         id == GADGET_ID_CONNECTED_ITEMS ||
1821         id == GADGET_ID_LINE ||
1822         id == GADGET_ID_ARC ||
1823         id == GADGET_ID_TEXT ||
1824         id == GADGET_ID_RECTANGLE ||
1825         id == GADGET_ID_FILLED_BOX ||
1826         id == GADGET_ID_FLOOD_FILL ||
1827         id == GADGET_ID_GRAB_BRUSH ||
1828         id == GADGET_ID_PICK_ELEMENT)
1829     {
1830       button_type = GD_TYPE_RADIO_BUTTON;
1831       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
1832       checked = (id == drawing_function ? TRUE : FALSE);
1833       event_mask = GD_EVENT_PRESSED;
1834     }
1835     else
1836     {
1837       button_type = GD_TYPE_NORMAL_BUTTON;
1838       radio_button_nr = RADIO_NR_NONE;
1839       checked = FALSE;
1840
1841       if (id == GADGET_ID_WRAP_LEFT ||
1842           id == GADGET_ID_WRAP_RIGHT ||
1843           id == GADGET_ID_WRAP_UP ||
1844           id == GADGET_ID_WRAP_DOWN)
1845         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
1846       else
1847         event_mask = GD_EVENT_RELEASED;
1848     }
1849
1850     if (id < ED_NUM_CTRL1_BUTTONS)
1851     {
1852       int x = i % ED_CTRL1_BUTTONS_HORIZ;
1853       int y = i / ED_CTRL1_BUTTONS_HORIZ;
1854
1855       gd_xoffset = ED_CTRL1_BUTTONS_XPOS + x * ED_CTRL1_BUTTON_XSIZE;
1856       gd_yoffset = ED_CTRL1_BUTTONS_YPOS + y * ED_CTRL1_BUTTON_YSIZE;
1857       width = ED_CTRL1_BUTTON_XSIZE;
1858       height = ED_CTRL1_BUTTON_YSIZE;
1859     }
1860     else
1861     {
1862       int x = (i - ED_NUM_CTRL1_BUTTONS) % ED_CTRL2_BUTTONS_HORIZ;
1863       int y = (i - ED_NUM_CTRL1_BUTTONS) / ED_CTRL2_BUTTONS_HORIZ;
1864
1865       gd_xoffset = ED_CTRL2_BUTTONS_XPOS + x * ED_CTRL2_BUTTON_XSIZE;
1866       gd_yoffset = ED_CTRL2_BUTTONS_YPOS + y * ED_CTRL2_BUTTON_YSIZE;
1867       width = ED_CTRL2_BUTTON_XSIZE;
1868       height = ED_CTRL2_BUTTON_YSIZE;
1869     }
1870
1871     gd_x1 = DOOR_GFX_PAGEX8 + gd_xoffset;
1872     gd_x2 = DOOR_GFX_PAGEX7 + gd_xoffset;
1873     gd_y1  = DOOR_GFX_PAGEY1 + ED_CTRL_BUTTONS_GFX_YPOS + gd_yoffset;
1874     gd_y2  = DOOR_GFX_PAGEY1 + ED_CTRL_BUTTONS_ALT_GFX_YPOS + gd_yoffset;
1875
1876     gi = CreateGadget(GDI_CUSTOM_ID, id,
1877                       GDI_CUSTOM_TYPE_ID, i,
1878                       GDI_INFO_TEXT, control_info[i].text,
1879                       GDI_X, EX + gd_xoffset,
1880                       GDI_Y, EY + gd_yoffset,
1881                       GDI_WIDTH, width,
1882                       GDI_HEIGHT, height,
1883                       GDI_TYPE, button_type,
1884                       GDI_STATE, GD_BUTTON_UNPRESSED,
1885                       GDI_RADIO_NR, radio_button_nr,
1886                       GDI_CHECKED, checked,
1887                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
1888                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y1,
1889                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y2,
1890                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
1891                       GDI_EVENT_MASK, event_mask,
1892                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1893                       GDI_CALLBACK_ACTION, HandleControlButtons,
1894                       GDI_END);
1895
1896     if (gi == NULL)
1897       Error(ERR_EXIT, "cannot create gadget");
1898
1899     level_editor_gadget[id] = gi;
1900   }
1901
1902   /* create buttons for scrolling of drawing area and element list */
1903   for (i=0; i<ED_NUM_SCROLLBUTTONS; i++)
1904   {
1905     int id = scrollbutton_info[i].gadget_id;
1906     int x, y, width, height;
1907     int gd_x1, gd_x2, gd_y1, gd_y2;
1908
1909     x = scrollbutton_info[i].x;
1910     y = scrollbutton_info[i].y;
1911
1912     event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
1913
1914     if (id == GADGET_ID_SCROLL_LIST_UP ||
1915         id == GADGET_ID_SCROLL_LIST_DOWN)
1916     {
1917       x += DX;
1918       y += DY;
1919       width = ED_SCROLLBUTTON2_XSIZE;
1920       height = ED_SCROLLBUTTON2_YSIZE;
1921       gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[i].xpos;
1922       gd_y1 = DOOR_GFX_PAGEY1 + scrollbutton_info[i].ypos;
1923       gd_x2 = gd_x1 - ED_SCROLLBUTTON2_XSIZE;
1924       gd_y2 = gd_y1;
1925     }
1926     else
1927     {
1928       x += SX;
1929       y += SY;
1930       width = ED_SCROLLBUTTON_XSIZE;
1931       height = ED_SCROLLBUTTON_YSIZE;
1932       gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[i].xpos;
1933       gd_y1 = DOOR_GFX_PAGEY1 + scrollbutton_info[i].ypos;
1934       gd_x2 = gd_x1 - ED_SCROLLBUTTON_XSIZE;
1935       gd_y2 = gd_y1;
1936     }
1937
1938     gi = CreateGadget(GDI_CUSTOM_ID, id,
1939                       GDI_CUSTOM_TYPE_ID, i,
1940                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
1941                       GDI_X, x,
1942                       GDI_Y, y,
1943                       GDI_WIDTH, width,
1944                       GDI_HEIGHT, height,
1945                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
1946                       GDI_STATE, GD_BUTTON_UNPRESSED,
1947                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
1948                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
1949                       GDI_EVENT_MASK, event_mask,
1950                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
1951                       GDI_CALLBACK_ACTION, HandleControlButtons,
1952                       GDI_END);
1953
1954     if (gi == NULL)
1955       Error(ERR_EXIT, "cannot create gadget");
1956
1957     level_editor_gadget[id] = gi;
1958   }
1959
1960   /* create buttons for element list */
1961   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
1962   {
1963     Bitmap *deco_bitmap;
1964     int deco_x, deco_y, deco_xpos, deco_ypos;
1965     int gd_xoffset, gd_yoffset;
1966     int gd_x1, gd_x2, gd_y;
1967     int x = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
1968     int y = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
1969     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
1970     int element = editor_elements[i];
1971
1972     event_mask = GD_EVENT_RELEASED;
1973
1974     gd_xoffset = ED_ELEMENTLIST_XPOS + x * ED_ELEMENTLIST_XSIZE;
1975     gd_yoffset = ED_ELEMENTLIST_YPOS + y * ED_ELEMENTLIST_YSIZE;
1976
1977     gd_x1 = DOOR_GFX_PAGEX6 + ED_ELEMENTLIST_XPOS + ED_ELEMENTLIST_XSIZE;
1978     gd_x2 = DOOR_GFX_PAGEX6 + ED_ELEMENTLIST_XPOS;
1979     gd_y  = DOOR_GFX_PAGEY1 + ED_ELEMENTLIST_YPOS;
1980
1981     getMiniGraphicSource(el2edimg(element), &deco_bitmap, &deco_x, &deco_y);
1982     deco_xpos = (ED_ELEMENTLIST_XSIZE - MINI_TILEX) / 2;
1983     deco_ypos = (ED_ELEMENTLIST_YSIZE - MINI_TILEY) / 2;
1984
1985     gi = CreateGadget(GDI_CUSTOM_ID, id,
1986                       GDI_CUSTOM_TYPE_ID, i,
1987                       GDI_INFO_TEXT, getElementInfoText(element),
1988                       GDI_X, DX + gd_xoffset,
1989                       GDI_Y, DY + gd_yoffset,
1990                       GDI_WIDTH, ED_ELEMENTLIST_XSIZE,
1991                       GDI_HEIGHT, ED_ELEMENTLIST_YSIZE,
1992                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
1993                       GDI_STATE, GD_BUTTON_UNPRESSED,
1994                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
1995                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
1996                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
1997                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
1998                       GDI_DECORATION_SIZE, MINI_TILEX, MINI_TILEY,
1999                       GDI_DECORATION_SHIFTING, 1, 1,
2000                       GDI_EVENT_MASK, event_mask,
2001                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2002                       GDI_CALLBACK_ACTION, HandleControlButtons,
2003                       GDI_END);
2004
2005     if (gi == NULL)
2006       Error(ERR_EXIT, "cannot create gadget");
2007
2008     level_editor_gadget[id] = gi;
2009   }
2010 }
2011
2012 static void CreateCounterButtons()
2013 {
2014   int max_infotext_len = getMaxInfoTextLength();
2015   int i;
2016
2017   for (i=0; i<ED_NUM_COUNTERBUTTONS; i++)
2018   {
2019     int j;
2020     int xpos = SX + counterbutton_info[i].x;    /* xpos of down count button */
2021     int ypos = SY + counterbutton_info[i].y;
2022
2023     for (j=0; j<2; j++)
2024     {
2025       Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2026       struct GadgetInfo *gi;
2027       int id = (j == 0 ?
2028                 counterbutton_info[i].gadget_id_down :
2029                 counterbutton_info[i].gadget_id_up);
2030       int gd_xoffset;
2031       int gd_x, gd_x1, gd_x2, gd_y;
2032       int x_size, y_size;
2033       unsigned long event_mask;
2034       char infotext[max_infotext_len + 1];
2035
2036       event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
2037
2038       if (i == ED_COUNTER_ID_SELECT_LEVEL)
2039       {
2040         int sid = (j == 0 ?
2041                    ED_SCROLLBUTTON_ID_AREA_LEFT :
2042                    ED_SCROLLBUTTON_ID_AREA_RIGHT);
2043
2044         event_mask |= GD_EVENT_RELEASED;
2045
2046         if (j == 1)
2047           xpos += 2 * ED_GADGET_DISTANCE;
2048         ypos += ED_GADGET_DISTANCE;
2049
2050         gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[sid].xpos;
2051         gd_x2 = gd_x1 - ED_SCROLLBUTTON_XSIZE;
2052         gd_y  = DOOR_GFX_PAGEY1 + scrollbutton_info[sid].ypos;
2053         x_size = ED_SCROLLBUTTON_XSIZE;
2054         y_size = ED_SCROLLBUTTON_YSIZE;
2055       }
2056       else
2057       {
2058         gd_xoffset = (j == 0 ? ED_BUTTON_MINUS_XPOS : ED_BUTTON_PLUS_XPOS);
2059         gd_x1 = DOOR_GFX_PAGEX4 + gd_xoffset;
2060         gd_x2 = DOOR_GFX_PAGEX3 + gd_xoffset;
2061         gd_y  = DOOR_GFX_PAGEY1 + ED_BUTTON_COUNT_YPOS;
2062         x_size = ED_BUTTON_COUNT_XSIZE;
2063         y_size = ED_BUTTON_COUNT_YSIZE;
2064       }
2065
2066       sprintf(infotext, "%s counter value by 1, 5 or 10",
2067               (j == 0 ? "decrease" : "increase"));
2068
2069       gi = CreateGadget(GDI_CUSTOM_ID, id,
2070                         GDI_CUSTOM_TYPE_ID, i,
2071                         GDI_INFO_TEXT, infotext,
2072                         GDI_X, xpos,
2073                         GDI_Y, ypos,
2074                         GDI_WIDTH, x_size,
2075                         GDI_HEIGHT, y_size,
2076                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
2077                         GDI_STATE, GD_BUTTON_UNPRESSED,
2078                         GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2079                         GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2080                         GDI_EVENT_MASK, event_mask,
2081                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2082                         GDI_CALLBACK_ACTION, HandleCounterButtons,
2083                         GDI_END);
2084
2085       if (gi == NULL)
2086         Error(ERR_EXIT, "cannot create gadget");
2087
2088       level_editor_gadget[id] = gi;
2089       xpos += gi->width + ED_GADGET_DISTANCE;   /* xpos of text count button */
2090
2091       if (j == 0)
2092       {
2093         int font_type = FONT_INPUT_1;
2094         int font_type_active = FONT_INPUT_1_ACTIVE;
2095         int gd_width = ED_WIN_COUNT_XSIZE;
2096
2097         id = counterbutton_info[i].gadget_id_text;
2098         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
2099
2100         if (i == ED_COUNTER_ID_SELECT_LEVEL)
2101         {
2102           font_type = FONT_LEVEL_NUMBER;
2103           font_type_active = FONT_LEVEL_NUMBER;
2104
2105           xpos += 2 * ED_GADGET_DISTANCE;
2106           ypos -= ED_GADGET_DISTANCE;
2107
2108           gd_x = DOOR_GFX_PAGEX6 + ED_WIN_COUNT2_XPOS;
2109           gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT2_YPOS;
2110           gd_width = ED_WIN_COUNT2_XSIZE;
2111         }
2112         else
2113         {
2114           gd_x = DOOR_GFX_PAGEX4 + ED_WIN_COUNT_XPOS;
2115           gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT_YPOS;
2116         }
2117
2118         gi = CreateGadget(GDI_CUSTOM_ID, id,
2119                           GDI_CUSTOM_TYPE_ID, i,
2120                           GDI_INFO_TEXT, "enter counter value",
2121                           GDI_X, xpos,
2122                           GDI_Y, ypos,
2123                           GDI_TYPE, GD_TYPE_TEXTINPUT_NUMERIC,
2124                           GDI_NUMBER_VALUE, 0,
2125                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
2126                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
2127                           GDI_TEXT_SIZE, 3,
2128                           GDI_TEXT_FONT, font_type,
2129                           GDI_TEXT_FONT_ACTIVE, font_type_active,
2130                           GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
2131                           GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
2132                           GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
2133                           GDI_DESIGN_WIDTH, gd_width,
2134                           GDI_EVENT_MASK, event_mask,
2135                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2136                           GDI_CALLBACK_ACTION, HandleCounterButtons,
2137                           GDI_END);
2138
2139         if (gi == NULL)
2140           Error(ERR_EXIT, "cannot create gadget");
2141
2142         level_editor_gadget[id] = gi;
2143         xpos += gi->width + ED_GADGET_DISTANCE; /* xpos of up count button */
2144       }
2145     }
2146   }
2147 }
2148
2149 static void CreateDrawingAreas()
2150 {
2151   struct GadgetInfo *gi;
2152   unsigned long event_mask;
2153   int id;
2154   int i;
2155
2156   event_mask =
2157     GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
2158     GD_EVENT_OFF_BORDERS;
2159
2160   /* one for the level drawing area ... */
2161   id = GADGET_ID_DRAWING_LEVEL;
2162   gi = CreateGadget(GDI_CUSTOM_ID, id,
2163                     GDI_X, SX,
2164                     GDI_Y, SY,
2165                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2166                     GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
2167                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2168                     GDI_EVENT_MASK, event_mask,
2169                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2170                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2171                     GDI_END);
2172
2173   if (gi == NULL)
2174     Error(ERR_EXIT, "cannot create gadget");
2175
2176   level_editor_gadget[id] = gi;
2177
2178   /* ... up to eight areas for element content ... */
2179   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
2180   {
2181     int gx = SX + ED_AREA_ELEM_CONTENT_XPOS + 5 * (i % 4) * MINI_TILEX;
2182     int gy = SX + ED_AREA_ELEM_CONTENT_YPOS + 6 * (i / 4) * MINI_TILEY;
2183
2184     id = GADGET_ID_ELEM_CONTENT_0 + i;
2185     gi = CreateGadget(GDI_CUSTOM_ID, id,
2186                       GDI_CUSTOM_TYPE_ID, i,
2187                       GDI_X, gx,
2188                       GDI_Y, gy,
2189                       GDI_WIDTH, 3 * MINI_TILEX,
2190                       GDI_HEIGHT, 3 * MINI_TILEY,
2191                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
2192                       GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2193                       GDI_EVENT_MASK, event_mask,
2194                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2195                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
2196                       GDI_END);
2197
2198     if (gi == NULL)
2199       Error(ERR_EXIT, "cannot create gadget");
2200
2201     level_editor_gadget[id] = gi;
2202   }
2203
2204   /* ... one for the amoeba content ... */
2205   id = GADGET_ID_AMOEBA_CONTENT;
2206   gi = CreateGadget(GDI_CUSTOM_ID, id,
2207                     GDI_X, SX + ED_AREA_ELEM_CONTENT_XPOS,
2208                     GDI_Y, SY + ED_AREA_ELEM_CONTENT_YPOS,
2209                     GDI_WIDTH, MINI_TILEX,
2210                     GDI_HEIGHT, MINI_TILEY,
2211                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2212                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2213                     GDI_EVENT_MASK, event_mask,
2214                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2215                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2216                     GDI_END);
2217
2218   if (gi == NULL)
2219     Error(ERR_EXIT, "cannot create gadget");
2220
2221   level_editor_gadget[id] = gi;
2222
2223   /* ... one for each custom element change target element ... */
2224   id = GADGET_ID_CUSTOM_CHANGED;
2225   gi = CreateGadget(GDI_CUSTOM_ID, id,
2226                     GDI_X, SX + ED_AREA_ELEM_CONTENT2_XPOS,
2227                     GDI_Y, SY + ED_AREA_ELEM_CONTENT2_YPOS,
2228                     GDI_WIDTH, MINI_TILEX,
2229                     GDI_HEIGHT, MINI_TILEY,
2230                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2231                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2232                     GDI_EVENT_MASK, event_mask,
2233                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2234                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2235                     GDI_END);
2236
2237   if (gi == NULL)
2238     Error(ERR_EXIT, "cannot create gadget");
2239
2240   level_editor_gadget[id] = gi;
2241
2242   /* ... and one for random placement background restrictions */
2243
2244   id = GADGET_ID_RANDOM_BACKGROUND;
2245   gi = CreateGadget(GDI_CUSTOM_ID, id,
2246                     GDI_X, SX + ED_AREA_RANDOM_BACKGROUND_XPOS,
2247                     GDI_Y, SY + ED_AREA_RANDOM_BACKGROUND_YPOS,
2248                     GDI_WIDTH, MINI_TILEX,
2249                     GDI_HEIGHT, MINI_TILEY,
2250                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2251                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2252                     GDI_EVENT_MASK, event_mask,
2253                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2254                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2255                     GDI_END);
2256
2257   if (gi == NULL)
2258     Error(ERR_EXIT, "cannot create gadget");
2259
2260   level_editor_gadget[id] = gi;
2261 }
2262
2263 static void CreateTextInputGadgets()
2264 {
2265   int max_infotext_len = getMaxInfoTextLength();
2266   int i;
2267
2268   for (i=0; i<ED_NUM_TEXTINPUT; i++)
2269   {
2270     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2271     int gd_x, gd_y;
2272     struct GadgetInfo *gi;
2273     unsigned long event_mask;
2274     char infotext[MAX_OUTPUT_LINESIZE + 1];
2275     int id = textinput_info[i].gadget_id;
2276
2277     event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
2278
2279     gd_x = DOOR_GFX_PAGEX4 + ED_WIN_COUNT_XPOS;
2280     gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT_YPOS;
2281
2282     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
2283     infotext[max_infotext_len] = '\0';
2284
2285     gi = CreateGadget(GDI_CUSTOM_ID, id,
2286                       GDI_CUSTOM_TYPE_ID, i,
2287                       GDI_INFO_TEXT, infotext,
2288                       GDI_X, SX + textinput_info[i].x,
2289                       GDI_Y, SY + textinput_info[i].y,
2290                       GDI_TYPE, GD_TYPE_TEXTINPUT_ALPHANUMERIC,
2291                       GDI_TEXT_VALUE, textinput_info[i].value,
2292                       GDI_TEXT_SIZE, textinput_info[i].size,
2293                       GDI_TEXT_FONT, FONT_INPUT_1,
2294                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
2295                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
2296                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
2297                       GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
2298                       GDI_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
2299                       GDI_EVENT_MASK, event_mask,
2300                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2301                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
2302                       GDI_END);
2303
2304     if (gi == NULL)
2305       Error(ERR_EXIT, "cannot create gadget");
2306
2307     level_editor_gadget[id] = gi;
2308   }
2309 }
2310
2311 static void CreateSelectboxGadgets()
2312 {
2313   int max_infotext_len = getMaxInfoTextLength();
2314   int i;
2315
2316   for (i=0; i<ED_NUM_SELECTBOX; i++)
2317   {
2318     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2319     int gd_x, gd_y;
2320     struct GadgetInfo *gi;
2321     unsigned long event_mask;
2322     char infotext[MAX_OUTPUT_LINESIZE + 1];
2323     int id = selectbox_info[i].gadget_id;
2324
2325     event_mask = GD_EVENT_RELEASED |
2326       GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
2327
2328     gd_x = DOOR_GFX_PAGEX4 + ED_SELECTBOX_XPOS;
2329     gd_y = DOOR_GFX_PAGEY1 + ED_SELECTBOX_YPOS;
2330
2331     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
2332     infotext[max_infotext_len] = '\0';
2333
2334     gi = CreateGadget(GDI_CUSTOM_ID, id,
2335                       GDI_CUSTOM_TYPE_ID, i,
2336                       GDI_INFO_TEXT, infotext,
2337                       GDI_X, SX + selectbox_info[i].x,
2338                       GDI_Y, SY + selectbox_info[i].y,
2339                       GDI_TYPE, GD_TYPE_SELECTBOX,
2340                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
2341                       GDI_SELECTBOX_INDEX, selectbox_info[i].index,
2342                       GDI_TEXT_SIZE, selectbox_info[i].size,
2343                       GDI_TEXT_FONT, FONT_INPUT_1,
2344                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
2345                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
2346                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
2347                       GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
2348                       GDI_BORDER_SIZE_SELECTBUTTON, getFontWidth(FONT_INPUT_1),
2349                       GDI_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
2350                       GDI_EVENT_MASK, event_mask,
2351                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2352                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
2353                       GDI_END);
2354
2355     if (gi == NULL)
2356       Error(ERR_EXIT, "cannot create gadget");
2357
2358     level_editor_gadget[id] = gi;
2359   }
2360 }
2361
2362 static void CreateTextbuttonGadgets()
2363 {
2364   int max_infotext_len = getMaxInfoTextLength();
2365   int i;
2366
2367   for (i=0; i<ED_NUM_TEXTBUTTON; i++)
2368   {
2369     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2370     int gd_x1, gd_x2, gd_y1, gd_y2;
2371     struct GadgetInfo *gi;
2372     unsigned long event_mask;
2373     char infotext[MAX_OUTPUT_LINESIZE + 1];
2374     int id = textbutton_info[i].gadget_id;
2375
2376     event_mask = GD_EVENT_RELEASED;
2377
2378     gd_x1 = DOOR_GFX_PAGEX4 + ED_TEXTBUTTON_XPOS;
2379     gd_x2 = DOOR_GFX_PAGEX3 + ED_TEXTBUTTON_XPOS;
2380     gd_y1 = DOOR_GFX_PAGEY1 + ED_TEXTBUTTON_YPOS;
2381     gd_y2 = DOOR_GFX_PAGEY1 + ED_TEXTBUTTON_INACTIVE_YPOS;
2382
2383     sprintf(infotext, "%s", textbutton_info[i].infotext);
2384     infotext[max_infotext_len] = '\0';
2385
2386     gi = CreateGadget(GDI_CUSTOM_ID, id,
2387                       GDI_CUSTOM_TYPE_ID, i,
2388                       GDI_INFO_TEXT, infotext,
2389                       GDI_X, SX + textbutton_info[i].x,
2390                       GDI_Y, SY + textbutton_info[i].y,
2391                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
2392                       GDI_TEXT_VALUE, textbutton_info[i].value,
2393                       GDI_TEXT_SIZE, textbutton_info[i].size,
2394                       GDI_TEXT_FONT, FONT_INPUT_2_ACTIVE,
2395                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2,
2396                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2397                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y1,
2398                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y2,
2399                       GDI_BORDER_SIZE, ED_BORDER2_SIZE, ED_BORDER_SIZE,
2400                       GDI_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
2401                       GDI_DECORATION_SHIFTING, 1, 1,
2402                       GDI_EVENT_MASK, event_mask,
2403                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2404                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
2405                       GDI_END);
2406
2407     if (gi == NULL)
2408       Error(ERR_EXIT, "cannot create gadget");
2409
2410     level_editor_gadget[id] = gi;
2411   }
2412 }
2413
2414 static void CreateScrollbarGadgets()
2415 {
2416   int i;
2417
2418   for (i=0; i<ED_NUM_SCROLLBARS; i++)
2419   {
2420     int id = scrollbar_info[i].gadget_id;
2421     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2422     int gd_x1, gd_x2, gd_y1, gd_y2;
2423     struct GadgetInfo *gi;
2424     int items_max, items_visible, item_position;
2425     unsigned long event_mask;
2426
2427     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
2428     {
2429       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
2430       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
2431       item_position = 0;
2432     }
2433     else        /* drawing area scrollbars */
2434     {
2435       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
2436       {
2437         items_max = MAX(lev_fieldx + 2, ed_fieldx);
2438         items_visible = ed_fieldx;
2439         item_position = 0;
2440       }
2441       else
2442       {
2443         items_max = MAX(lev_fieldy + 2, ed_fieldy);
2444         items_visible = ed_fieldy;
2445         item_position = 0;
2446       }
2447     }
2448
2449     event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
2450
2451     gd_x1 = DOOR_GFX_PAGEX8 + scrollbar_info[i].xpos;
2452     gd_x2 = (gd_x1 - (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL ?
2453                       scrollbar_info[i].height : scrollbar_info[i].width));
2454     gd_y1 = DOOR_GFX_PAGEY1 + scrollbar_info[i].ypos;
2455     gd_y2 = DOOR_GFX_PAGEY1 + scrollbar_info[i].ypos;
2456
2457     gi = CreateGadget(GDI_CUSTOM_ID, id,
2458                       GDI_CUSTOM_TYPE_ID, i,
2459                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
2460                       GDI_X, scrollbar_info[i].x,
2461                       GDI_Y, scrollbar_info[i].y,
2462                       GDI_WIDTH, scrollbar_info[i].width,
2463                       GDI_HEIGHT, scrollbar_info[i].height,
2464                       GDI_TYPE, scrollbar_info[i].type,
2465                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
2466                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
2467                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
2468                       GDI_STATE, GD_BUTTON_UNPRESSED,
2469                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2470                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
2471                       GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
2472                       GDI_EVENT_MASK, event_mask,
2473                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2474                       GDI_CALLBACK_ACTION, HandleControlButtons,
2475                       GDI_END);
2476
2477     if (gi == NULL)
2478       Error(ERR_EXIT, "cannot create gadget");
2479
2480     level_editor_gadget[id] = gi;
2481   }
2482 }
2483
2484 static void CreateCheckbuttonGadgets()
2485 {
2486   Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2487   struct GadgetInfo *gi;
2488   unsigned long event_mask;
2489   int gd_x1, gd_x2, gd_x3, gd_x4, gd_y;
2490   boolean checked;
2491   int i;
2492
2493   event_mask = GD_EVENT_PRESSED;
2494
2495   gd_x1 = DOOR_GFX_PAGEX4 + ED_CHECKBUTTON_UNCHECKED_XPOS;
2496   gd_x2 = DOOR_GFX_PAGEX3 + ED_CHECKBUTTON_UNCHECKED_XPOS;
2497   gd_x3 = DOOR_GFX_PAGEX4 + ED_CHECKBUTTON_CHECKED_XPOS;
2498   gd_x4 = DOOR_GFX_PAGEX3 + ED_CHECKBUTTON_CHECKED_XPOS;
2499   gd_y  = DOOR_GFX_PAGEY1 + ED_RADIOBUTTON_YPOS;
2500
2501   for (i=0; i<ED_NUM_RADIOBUTTONS; i++)
2502   {
2503     int id = radiobutton_info[i].gadget_id;
2504
2505     checked =
2506       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
2507
2508     gi = CreateGadget(GDI_CUSTOM_ID, id,
2509                       GDI_CUSTOM_TYPE_ID, i,
2510                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
2511                       GDI_X, SX + radiobutton_info[i].x,
2512                       GDI_Y, SY + radiobutton_info[i].y,
2513                       GDI_WIDTH, ED_CHECKBUTTON_XSIZE,
2514                       GDI_HEIGHT, ED_CHECKBUTTON_YSIZE,
2515                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
2516                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
2517                       GDI_CHECKED, checked,
2518                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2519                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2520                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x3, gd_y,
2521                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x4, gd_y,
2522                       GDI_EVENT_MASK, event_mask,
2523                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2524                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
2525                       GDI_END);
2526
2527     if (gi == NULL)
2528       Error(ERR_EXIT, "cannot create gadget");
2529
2530     level_editor_gadget[id] = gi;
2531   }
2532
2533   for (i=0; i<ED_NUM_CHECKBUTTONS; i++)
2534   {
2535     int id = checkbutton_info[i].gadget_id;
2536
2537     if (id == GADGET_ID_STICK_ELEMENT)
2538       gd_y  = DOOR_GFX_PAGEY1 + ED_STICKYBUTTON_YPOS;
2539     else
2540       gd_y  = DOOR_GFX_PAGEY1 + ED_CHECKBUTTON_YPOS;
2541
2542     gi = CreateGadget(GDI_CUSTOM_ID, id,
2543                       GDI_CUSTOM_TYPE_ID, i,
2544                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
2545                       GDI_X, SX + checkbutton_info[i].x,
2546                       GDI_Y, SY + checkbutton_info[i].y,
2547                       GDI_WIDTH, ED_CHECKBUTTON_XSIZE,
2548                       GDI_HEIGHT, ED_CHECKBUTTON_YSIZE,
2549                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
2550                       GDI_CHECKED, *checkbutton_info[i].value,
2551                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2552                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2553                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x3, gd_y,
2554                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x4, gd_y,
2555                       GDI_EVENT_MASK, event_mask,
2556                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2557                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
2558                       GDI_END);
2559
2560     if (gi == NULL)
2561       Error(ERR_EXIT, "cannot create gadget");
2562
2563     level_editor_gadget[id] = gi;
2564   }
2565 }
2566
2567 void CreateLevelEditorGadgets()
2568 {
2569   int old_game_status = game_status;
2570
2571   /* setting 'game_status' is needed to get the right fonts for the editor */
2572   game_status = LEVELED;
2573
2574   ReinitializeElementList();
2575
2576   CreateControlButtons();
2577   CreateCounterButtons();
2578   CreateDrawingAreas();
2579   CreateTextInputGadgets();
2580   CreateSelectboxGadgets();
2581   CreateTextbuttonGadgets();
2582   CreateScrollbarGadgets();
2583   CreateCheckbuttonGadgets();
2584
2585   game_status = old_game_status;
2586 }
2587
2588 void FreeLevelEditorGadgets()
2589 {
2590   int i;
2591
2592   for (i=0; i<NUM_EDITOR_GADGETS; i++)
2593     FreeGadget(level_editor_gadget[i]);
2594 }
2595
2596 static void MapCounterButtons(int id)
2597 {
2598   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_down]);
2599   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_text]);
2600   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_up]);
2601 }
2602
2603 static void MapControlButtons()
2604 {
2605   int counter_id;
2606   int i;
2607
2608   /* map toolbox buttons */
2609   for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
2610     MapGadget(level_editor_gadget[i]);
2611
2612   /* map buttons to select elements */
2613   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
2614     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
2615   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
2616   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
2617   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
2618
2619   /* map buttons to select level */
2620   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
2621   ModifyEditorCounterLimits(counter_id,
2622                             leveldir_current->first_level,
2623                             leveldir_current->last_level);
2624   ModifyEditorCounter(counter_id, *counterbutton_info[counter_id].value);
2625   MapCounterButtons(counter_id);
2626 }
2627
2628 static void MapDrawingArea(int id)
2629 {
2630   MapGadget(level_editor_gadget[id]);
2631 }
2632
2633 static void MapTextInputGadget(int id)
2634 {
2635   MapGadget(level_editor_gadget[textinput_info[id].gadget_id]);
2636 }
2637
2638 static void MapSelectboxGadget(int id)
2639 {
2640   MapGadget(level_editor_gadget[selectbox_info[id].gadget_id]);
2641 }
2642
2643 static void MapTextbuttonGadget(int id)
2644 {
2645   MapGadget(level_editor_gadget[textbutton_info[id].gadget_id]);
2646 }
2647
2648 static void MapRadiobuttonGadget(int id)
2649 {
2650   MapGadget(level_editor_gadget[radiobutton_info[id].gadget_id]);
2651 }
2652
2653 static void MapCheckbuttonGadget(int id)
2654 {
2655   MapGadget(level_editor_gadget[checkbutton_info[id].gadget_id]);
2656 }
2657
2658 static void MapMainDrawingArea()
2659 {
2660   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
2661   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
2662   int i;
2663
2664   for (i=ED_SCROLLBUTTON_ID_AREA_FIRST; i<=ED_SCROLLBUTTON_ID_AREA_LAST; i++)
2665   {
2666     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
2667           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
2668          no_horizontal_scrollbar) ||
2669         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
2670           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
2671          no_vertical_scrollbar))
2672       continue;
2673
2674     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
2675   }
2676
2677   for (i=ED_SCROLLBAR_ID_AREA_FIRST; i<=ED_SCROLLBAR_ID_AREA_LAST; i++)
2678   {
2679     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
2680         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
2681       continue;
2682
2683     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
2684   }
2685
2686   MapDrawingArea(GADGET_ID_DRAWING_LEVEL);
2687 }
2688
2689 static void UnmapDrawingArea(int id)
2690 {
2691   UnmapGadget(level_editor_gadget[id]);
2692 }
2693
2694 void UnmapLevelEditorWindowGadgets()
2695 {
2696   int i;
2697
2698   for (i=0; i<NUM_EDITOR_GADGETS; i++)
2699     if (level_editor_gadget[i]->x < SX + SXSIZE)
2700       UnmapGadget(level_editor_gadget[i]);
2701 }
2702
2703 void UnmapLevelEditorGadgets()
2704 {
2705   int i;
2706
2707   for (i=0; i<NUM_EDITOR_GADGETS; i++)
2708     UnmapGadget(level_editor_gadget[i]);
2709 }
2710
2711 static void ResetUndoBuffer()
2712 {
2713   undo_buffer_position = -1;
2714   undo_buffer_steps = -1;
2715   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
2716 }
2717
2718 static void DrawEditModeWindow()
2719 {
2720   if (edit_mode == ED_MODE_INFO)
2721     DrawLevelInfoWindow();
2722   else if (edit_mode == ED_MODE_PROPERTIES)
2723     DrawPropertiesWindow();
2724   else  /* edit_mode == ED_MODE_DRAWING */
2725     DrawDrawingWindow();
2726 }
2727
2728 static boolean LevelChanged()
2729 {
2730   boolean level_changed = FALSE;
2731   int x, y;
2732
2733   for(y=0; y<lev_fieldy; y++)
2734     for(x=0; x<lev_fieldx; x++)
2735       if (Feld[x][y] != Ur[x][y])
2736         level_changed = TRUE;
2737
2738   return level_changed;
2739 }
2740
2741 static boolean LevelContainsPlayer()
2742 {
2743   boolean player_found = FALSE;
2744   int x, y;
2745
2746   for(y=0; y<lev_fieldy; y++)
2747     for(x=0; x<lev_fieldx; x++)
2748       if (Feld[x][y] == EL_PLAYER_1 ||
2749           Feld[x][y] == EL_SP_MURPHY)
2750         player_found = TRUE;
2751
2752   return player_found;
2753 }
2754
2755 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
2756                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
2757 {
2758   int x, y;
2759
2760   for(x=0; x<lev_fieldx; x++)
2761     for(y=0; y<lev_fieldy; y++)
2762       dst[x][y] = src[x][y];
2763 }
2764
2765 static void CopyCustomElementPropertiesToEditor()
2766 {
2767   int i;
2768
2769   for (i=0; i < NUM_CUSTOM_ELEMENTS; i++)
2770   {
2771     int element = EL_CUSTOM_START + i;
2772     int properties = Properties1[element];
2773
2774     custom_element_properties[i].indestructible =
2775       ((properties & EP_BIT_INDESTRUCTIBLE) != 0 ? TRUE : FALSE);
2776
2777     custom_element_properties[i].can_fall =
2778       ((properties & EP_BIT_CAN_FALL) != 0 ? TRUE : FALSE);
2779
2780     custom_element_properties[i].can_smash =
2781       ((properties & EP_BIT_CAN_SMASH) != 0 ? TRUE : FALSE);
2782
2783     custom_element_properties[i].pushable =
2784       ((properties & EP_BIT_PUSHABLE) != 0 ? TRUE : FALSE);
2785
2786     custom_element_properties[i].slippery =
2787       ((properties & EP_BIT_SLIPPERY) != 0 ? TRUE : FALSE);
2788   }
2789 }
2790
2791 static void CopyCustomElementPropertiesToGame()
2792 {
2793   int i;
2794
2795   for (i=0; i < NUM_CUSTOM_ELEMENTS; i++)
2796   {
2797     int element = EL_CUSTOM_START + i;
2798
2799     Properties1[element] = EP_BITMASK_DEFAULT;
2800
2801     if (custom_element_properties[i].indestructible)
2802       Properties1[element] |= EP_BIT_INDESTRUCTIBLE;
2803     else
2804       Properties1[element] &= ~EP_BIT_INDESTRUCTIBLE;
2805
2806     if (custom_element_properties[i].can_fall)
2807       Properties1[element] |= EP_BIT_CAN_FALL;
2808     else
2809       Properties1[element] &= ~EP_BIT_CAN_FALL;
2810
2811     if (custom_element_properties[i].can_smash)
2812       Properties1[element] |= EP_BIT_CAN_SMASH;
2813     else
2814       Properties1[element] &= ~EP_BIT_CAN_SMASH;
2815
2816     if (custom_element_properties[i].pushable)
2817       Properties1[element] |= EP_BIT_PUSHABLE;
2818     else
2819       Properties1[element] &= ~EP_BIT_PUSHABLE;
2820
2821     if (custom_element_properties[i].slippery)
2822       Properties1[element] |= EP_BIT_SLIPPERY;
2823     else
2824       Properties1[element] &= ~EP_BIT_SLIPPERY;
2825   }
2826 }
2827
2828 void DrawLevelEd()
2829 {
2830   CloseDoor(DOOR_CLOSE_ALL);
2831   OpenDoor(DOOR_OPEN_2 | DOOR_NO_DELAY);
2832
2833   if (level_editor_test_game)
2834   {
2835     CopyPlayfield(Ur, Feld);
2836     CopyPlayfield(FieldBackup, Ur);
2837
2838     level_editor_test_game = FALSE;
2839   }
2840   else
2841   {
2842     edit_mode = ED_MODE_DRAWING;
2843
2844     ResetUndoBuffer();
2845     level_xpos = -1;
2846     level_ypos = -1;
2847   }
2848
2849   /* copy default editor door content to main double buffer */
2850   BlitBitmap(graphic_info[IMG_GLOBAL_DOOR].bitmap, drawto,
2851              DOOR_GFX_PAGEX6, DOOR_GFX_PAGEY1, DXSIZE, DYSIZE, DX, DY);
2852
2853   /* draw mouse button brush elements */
2854   DrawMiniGraphicExt(drawto,
2855                      DX + ED_WIN_MB_LEFT_XPOS, DY + ED_WIN_MB_LEFT_YPOS,
2856                      el2edimg(new_element1));
2857   DrawMiniGraphicExt(drawto,
2858                      DX + ED_WIN_MB_MIDDLE_XPOS, DY + ED_WIN_MB_MIDDLE_YPOS,
2859                      el2edimg(new_element2));
2860   DrawMiniGraphicExt(drawto,
2861                      DX + ED_WIN_MB_RIGHT_XPOS, DY + ED_WIN_MB_RIGHT_YPOS,
2862                      el2edimg(new_element3));
2863
2864   /* draw bigger door */
2865   DrawSpecialEditorDoor();
2866
2867   /* draw new control window */
2868   BlitBitmap(graphic_info[IMG_GLOBAL_DOOR].bitmap, drawto,
2869              DOOR_GFX_PAGEX8, 236, EXSIZE, EYSIZE, EX, EY);
2870
2871   redraw_mask |= REDRAW_ALL;
2872
2873   ReinitializeElementListButtons();     /* only needed after setup changes */
2874
2875   UnmapTapeButtons();
2876   MapControlButtons();
2877
2878   /* copy actual editor door content to door double buffer for OpenDoor() */
2879   BlitBitmap(drawto, bitmap_db_door,
2880              DX, DY, DXSIZE, DYSIZE, DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
2881
2882   DrawEditModeWindow();
2883
2884   OpenDoor(DOOR_OPEN_1);
2885 }
2886
2887 static void AdjustDrawingAreaGadgets()
2888 {
2889   int ed_xsize = lev_fieldx + 2;
2890   int ed_ysize = lev_fieldy + 2;
2891   int max_ed_fieldx = MAX_ED_FIELDX;
2892   int max_ed_fieldy = MAX_ED_FIELDY;
2893   boolean horizontal_scrollbar_needed;
2894   boolean vertical_scrollbar_needed;
2895   int x, y, width, height;
2896   int xoffset, yoffset;
2897
2898   /* check if we need any scrollbars */
2899   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
2900   vertical_scrollbar_needed = (ed_ysize > max_ed_fieldy);
2901
2902   /* check if we have a smaller editor field because of scrollbars */
2903   if (horizontal_scrollbar_needed)
2904     max_ed_fieldy = MAX_ED_FIELDY - 1;
2905   if (vertical_scrollbar_needed)
2906     max_ed_fieldx = MAX_ED_FIELDX - 1;
2907
2908   /* check again if we now need more scrollbars because of less space */
2909   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
2910   vertical_scrollbar_needed = (ed_ysize > max_ed_fieldy);
2911
2912   /* check if editor field gets even smaller after adding new scrollbars */
2913   if (horizontal_scrollbar_needed)
2914     max_ed_fieldy = MAX_ED_FIELDY - 1;
2915   if (vertical_scrollbar_needed)
2916     max_ed_fieldx = MAX_ED_FIELDX - 1;
2917
2918   ed_fieldx = (ed_xsize < MAX_ED_FIELDX ? ed_xsize : max_ed_fieldx);
2919   ed_fieldy = (ed_ysize < MAX_ED_FIELDY ? ed_ysize : max_ed_fieldy);
2920
2921   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
2922                GDI_WIDTH, ed_fieldx * MINI_TILEX,
2923                GDI_HEIGHT, ed_fieldy * MINI_TILEY,
2924                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
2925                GDI_END);
2926
2927   xoffset = (ed_fieldx == MAX_ED_FIELDX ? ED_SCROLLBUTTON_XSIZE : 0);
2928   yoffset = (ed_fieldy == MAX_ED_FIELDY ? ED_SCROLLBUTTON_YSIZE : 0);
2929
2930   x = SX + scrollbutton_info[ED_SCROLLBUTTON_ID_AREA_RIGHT].x + xoffset;
2931   y = SX + scrollbutton_info[ED_SCROLLBUTTON_ID_AREA_DOWN].y + yoffset;
2932
2933   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT], GDI_X, x, GDI_END);
2934   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN], GDI_Y, y, GDI_END);
2935
2936   width = scrollbar_info[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width + xoffset;
2937   height = scrollbar_info[ED_SCROLLBAR_ID_AREA_VERTICAL].height + yoffset;
2938
2939   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
2940                GDI_WIDTH, width,
2941                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
2942                GDI_END);
2943   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
2944                GDI_HEIGHT, height,
2945                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
2946                GDI_END);
2947 }
2948
2949 static void AdjustLevelScrollPosition()
2950 {
2951   if (level_xpos < -1)
2952     level_xpos = -1;
2953   if (level_xpos > lev_fieldx - ed_fieldx + 1)
2954     level_xpos = lev_fieldx - ed_fieldx + 1;
2955   if (lev_fieldx < ed_fieldx - 2)
2956     level_xpos = -1;
2957
2958   if (level_ypos < -1)
2959     level_ypos = -1;
2960   if (level_ypos > lev_fieldy - ed_fieldy + 1)
2961     level_ypos = lev_fieldy - ed_fieldy + 1;
2962   if (lev_fieldy < ed_fieldy - 2)
2963     level_ypos = -1;
2964 }
2965
2966 static void AdjustEditorScrollbar(int id)
2967 {
2968   struct GadgetInfo *gi = level_editor_gadget[id];
2969   int items_max, items_visible, item_position;
2970
2971   if (id == GADGET_ID_SCROLL_HORIZONTAL)
2972   {
2973     items_max = MAX(lev_fieldx + 2, ed_fieldx);
2974     items_visible = ed_fieldx;
2975     item_position = level_xpos + 1;
2976   }
2977   else
2978   {
2979     items_max = MAX(lev_fieldy + 2, ed_fieldy);
2980     items_visible = ed_fieldy;
2981     item_position = level_ypos + 1;
2982   }
2983
2984   if (item_position > items_max - items_visible)
2985     item_position = items_max - items_visible;
2986
2987   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
2988                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
2989 }
2990
2991 static void ModifyEditorTextInput(int textinput_id, char *new_text)
2992 {
2993   int gadget_id = textinput_info[textinput_id].gadget_id;
2994   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
2995
2996   ModifyGadget(gi, GDI_TEXT_VALUE, new_text, GDI_END);
2997 }
2998
2999 static void ModifyEditorCounter(int counter_id, int new_value)
3000 {
3001   int *counter_value = counterbutton_info[counter_id].value;
3002   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
3003   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
3004
3005   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
3006
3007   if (counter_value != NULL)
3008     *counter_value = gi->text.number_value;
3009 }
3010
3011 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
3012 {
3013   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
3014   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
3015
3016   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
3017 }
3018
3019 static void PickDrawingElement(int button, int element)
3020 {
3021   if (button < 1 || button > 3)
3022     return;
3023
3024   if (button == 1)
3025   {
3026     new_element1 = element;
3027     DrawMiniGraphicExt(drawto,
3028                        DX + ED_WIN_MB_LEFT_XPOS, DY + ED_WIN_MB_LEFT_YPOS,
3029                        el2edimg(new_element1));
3030   }
3031   else if (button == 2)
3032   {
3033     new_element2 = element;
3034     DrawMiniGraphicExt(drawto,
3035                        DX + ED_WIN_MB_MIDDLE_XPOS, DY + ED_WIN_MB_MIDDLE_YPOS,
3036                        el2edimg(new_element2));
3037   }
3038   else
3039   {
3040     new_element3 = element;
3041     DrawMiniGraphicExt(drawto,
3042                        DX + ED_WIN_MB_RIGHT_XPOS, DY + ED_WIN_MB_RIGHT_YPOS,
3043                        el2edimg(new_element3));
3044   }
3045
3046   redraw_mask |= REDRAW_DOOR_1;
3047 }
3048
3049 static void DrawDrawingWindow()
3050 {
3051   SetMainBackgroundImage(IMG_UNDEFINED);
3052   ClearWindow();
3053   UnmapLevelEditorWindowGadgets();
3054
3055   AdjustDrawingAreaGadgets();
3056   AdjustLevelScrollPosition();
3057   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
3058   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
3059
3060   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3061   MapMainDrawingArea();
3062 }
3063
3064 static void DrawElementBorder(int dest_x, int dest_y, int width, int height)
3065 {
3066   int border_graphic = IMG_EDITOR_ELEMENT_BORDER;
3067   Bitmap *src_bitmap;
3068   int src_x, src_y;
3069   int num_mini_tilex = width / MINI_TILEX + 1;
3070   int num_mini_tiley = width / MINI_TILEY + 1;
3071   int x, y;
3072
3073   getMiniGraphicSource(border_graphic, &src_bitmap, &src_x, &src_y);
3074
3075   for (y=0; y < num_mini_tiley; y++)
3076     for (x=0; x < num_mini_tilex; x++)
3077       BlitBitmap(src_bitmap, drawto, src_x, src_y, MINI_TILEX, MINI_TILEY,
3078                  dest_x - MINI_TILEX / 2 + x * MINI_TILEX,
3079                  dest_y - MINI_TILEY / 2 + y * MINI_TILEY);
3080
3081   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
3082 }
3083
3084 static void DrawRandomPlacementBackgroundArea()
3085 {
3086   int area_x = ED_AREA_RANDOM_BACKGROUND_XPOS / MINI_TILEX;
3087   int area_y = ED_AREA_RANDOM_BACKGROUND_YPOS / MINI_TILEY;
3088   int area_sx = SX + ED_AREA_RANDOM_BACKGROUND_XPOS;
3089   int area_sy = SY + ED_AREA_RANDOM_BACKGROUND_YPOS;
3090
3091   ElementContent[0][0][0] = random_placement_background_element;
3092
3093   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY);
3094   DrawMiniElement(area_x, area_y, ElementContent[0][0][0]);
3095
3096   MapDrawingArea(GADGET_ID_RANDOM_BACKGROUND);
3097 }
3098
3099 static void DrawLevelInfoWindow()
3100 {
3101   char infotext[MAX_OUTPUT_LINESIZE + 1];
3102   int max_infotext_len = getMaxInfoTextLength();
3103   int xoffset_above = 0;
3104   int yoffset_above = -(MINI_TILEX + ED_GADGET_DISTANCE);
3105   int xoffset_right = getCounterGadgetWidth();
3106   int yoffset_right = ED_BORDER_SIZE;
3107   int xoffset_right2 = ED_CHECKBUTTON_XSIZE + 2 * ED_GADGET_DISTANCE;
3108   int yoffset_right2 = ED_BORDER_SIZE;
3109   int i, x, y;
3110
3111   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
3112   ClearWindow();
3113   UnmapLevelEditorWindowGadgets();
3114
3115   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS_YPOS,
3116            "Level Settings", FONT_TITLE_1);
3117   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS2_YPOS,
3118            "Editor Settings", FONT_TITLE_1);
3119
3120   /* draw counter gadgets */
3121   for (i=ED_COUNTER_ID_LEVEL_FIRST; i<=ED_COUNTER_ID_LEVEL_LAST; i++)
3122   {
3123     if (counterbutton_info[i].infotext_above)
3124     {
3125       x = counterbutton_info[i].x + xoffset_above;
3126       y = counterbutton_info[i].y + yoffset_above;
3127
3128       sprintf(infotext, "%s:", counterbutton_info[i].infotext_above);
3129       infotext[max_infotext_len] = '\0';
3130       DrawTextF(x, y, FONT_TEXT_1, infotext);
3131     }
3132
3133     if (counterbutton_info[i].infotext_right)
3134     {
3135       x = counterbutton_info[i].x + xoffset_right;
3136       y = counterbutton_info[i].y + yoffset_right;
3137
3138       sprintf(infotext, "%s", counterbutton_info[i].infotext_right);
3139       infotext[max_infotext_len] = '\0';
3140       DrawTextF(x, y, FONT_TEXT_1, infotext);
3141     }
3142
3143     ModifyEditorCounter(i, *counterbutton_info[i].value);
3144     MapCounterButtons(i);
3145   }
3146
3147   /* draw text input gadgets */
3148   for (i=ED_TEXTINPUT_ID_LEVEL_FIRST; i<=ED_TEXTINPUT_ID_LEVEL_LAST; i++)
3149   {
3150     x = textinput_info[i].x + xoffset_above;
3151     y = textinput_info[i].y + yoffset_above;
3152
3153     sprintf(infotext, "%s:", textinput_info[i].infotext);
3154     infotext[max_infotext_len] = '\0';
3155
3156     DrawTextF(x, y, FONT_TEXT_1, infotext);
3157     ModifyEditorTextInput(i, textinput_info[i].value);
3158     MapTextInputGadget(i);
3159   }
3160
3161   /* draw radiobutton gadgets */
3162   for (i=ED_RADIOBUTTON_ID_LEVEL_FIRST; i<=ED_RADIOBUTTON_ID_LEVEL_LAST; i++)
3163   {
3164     boolean checked =
3165       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
3166
3167     x = radiobutton_info[i].x + xoffset_right2;
3168     y = radiobutton_info[i].y + yoffset_right2;
3169
3170     DrawTextF(x, y, FONT_TEXT_1, radiobutton_info[i].text);
3171     ModifyGadget(level_editor_gadget[radiobutton_info[i].gadget_id],
3172                  GDI_CHECKED, checked, GDI_END);
3173     MapRadiobuttonGadget(i);
3174   }
3175
3176   /* draw checkbutton gadgets */
3177   for (i=ED_CHECKBUTTON_ID_LEVEL_FIRST; i<=ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
3178   {
3179     x = checkbutton_info[i].x + xoffset_right2;
3180     y = checkbutton_info[i].y + yoffset_right2;
3181
3182     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3183     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3184                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3185     MapCheckbuttonGadget(i);
3186   }
3187
3188   /* draw drawing area */
3189   DrawRandomPlacementBackgroundArea();
3190 }
3191
3192 static void DrawAmoebaContentArea()
3193 {
3194   int area_x = ED_AREA_ELEM_CONTENT_XPOS / MINI_TILEX;
3195   int area_y = ED_AREA_ELEM_CONTENT_YPOS / MINI_TILEY;
3196   int area_sx = SX + ED_AREA_ELEM_CONTENT_XPOS;
3197   int area_sy = SY + ED_AREA_ELEM_CONTENT_YPOS;
3198
3199   ElementContent[0][0][0] = level.amoeba_content;
3200
3201   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY);
3202   DrawMiniElement(area_x, area_y, ElementContent[0][0][0]);
3203
3204   DrawText(area_sx + TILEX, area_sy + 1, "Content of amoeba", FONT_TEXT_1);
3205
3206   MapDrawingArea(GADGET_ID_AMOEBA_CONTENT);
3207 }
3208
3209 static void DrawCustomChangedArea()
3210 {
3211   int area_x = ED_AREA_ELEM_CONTENT2_XPOS / MINI_TILEX;
3212   int area_y = ED_AREA_ELEM_CONTENT2_YPOS / MINI_TILEY;
3213   int area_sx = SX + ED_AREA_ELEM_CONTENT2_XPOS;
3214   int area_sy = SY + ED_AREA_ELEM_CONTENT2_YPOS;
3215   int i = properties_element - EL_CUSTOM_START;
3216
3217   if (!IS_CUSTOM_ELEMENT(properties_element))
3218   {
3219     /* this should never happen */
3220     Error(ERR_WARN, "element %d is no custom element", properties_element);
3221
3222     return;
3223   }
3224
3225   ElementContent[0][0][0] = level.custom_element_successor[i];
3226
3227   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY);
3228   DrawMiniElement(area_x, area_y, ElementContent[0][0][0]);
3229
3230   DrawText(area_sx + TILEX, area_sy + 1, "Element after change", FONT_TEXT_1);
3231
3232   MapDrawingArea(GADGET_ID_CUSTOM_CHANGED);
3233 }
3234
3235 static void DrawElementContentAreas()
3236 {
3237   int counter_id = ED_COUNTER_ID_ELEM_CONTENT;
3238   int area_x = ED_AREA_ELEM_CONTENT_XPOS / MINI_TILEX;
3239   int area_y = ED_AREA_ELEM_CONTENT_YPOS / MINI_TILEY;
3240   int area_sx = SX + ED_AREA_ELEM_CONTENT_XPOS;
3241   int area_sy = SY + ED_AREA_ELEM_CONTENT_YPOS;
3242   int xoffset_right = getCounterGadgetWidth();
3243   int yoffset_right = ED_BORDER_SIZE;
3244   int i, x, y;
3245
3246   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
3247     for (y=0; y<3; y++)
3248       for (x=0; x<3; x++)
3249         ElementContent[i][x][y] = level.yam_content[i][x][y];
3250
3251   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
3252     UnmapDrawingArea(GADGET_ID_ELEM_CONTENT_0 + i);
3253
3254   /* display counter to choose number of element content areas */
3255   x = counterbutton_info[counter_id].x + xoffset_right;
3256   y = counterbutton_info[counter_id].y + yoffset_right;
3257   DrawTextF(x, y, FONT_TEXT_1, "number of content areas");
3258
3259   ModifyEditorCounter(counter_id, *counterbutton_info[counter_id].value);
3260   MapCounterButtons(counter_id);
3261
3262   /* delete content areas in case of reducing number of them */
3263   DrawBackground(SX, area_sy - MINI_TILEX, SXSIZE, 12 * MINI_TILEY);
3264
3265   for (i=0; i<level.num_yam_contents; i++)
3266     DrawElementBorder(area_sx + 5 * (i % 4) * MINI_TILEX,
3267                       area_sy + 6 * (i / 4) * MINI_TILEY,
3268                       3 * MINI_TILEX, 3 * MINI_TILEY);
3269
3270   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 0 * MINI_TILEY + 1,
3271            "Content", FONT_TEXT_1);
3272   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 1 * MINI_TILEY + 1,
3273            "when",    FONT_TEXT_1);
3274   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 2 * MINI_TILEY + 1,
3275            "smashed", FONT_TEXT_1);
3276
3277   for (i=0; i<level.num_yam_contents; i++)
3278   {
3279     for (y=0; y<3; y++)
3280       for (x=0; x<3; x++)
3281         DrawMiniElement(area_x + 5 * (i % 4) + x, area_y + 6 * (i / 4) + y,
3282                         ElementContent[i][x][y]);
3283
3284     DrawTextF(area_sx - SX + 5 * (i % 4) * MINI_TILEX + MINI_TILEX + 1,
3285               area_sy - SY + 6 * (i / 4) * MINI_TILEY + 4 * MINI_TILEY - 4,
3286               FONT_TEXT_1, "%d", i + 1);
3287   }
3288
3289   for (i=0; i<level.num_yam_contents; i++)
3290     MapDrawingArea(GADGET_ID_ELEM_CONTENT_0 + i);
3291 }
3292
3293 #define TEXT_COLLECTING         "Score for collecting"
3294 #define TEXT_SMASHING           "Score for smashing"
3295 #define TEXT_CRACKING           "Score for cracking"
3296 #define TEXT_SPEED              "Speed of amoeba growth"
3297 #define TEXT_DURATION           "Duration when activated"
3298
3299 static void DrawPropertiesWindow()
3300 {
3301   int counter_id = ED_COUNTER_ID_ELEM_SCORE;
3302   int num_elements_in_level;
3303   float percentage;
3304   int xoffset_right = getCounterGadgetWidth();
3305   int yoffset_right = ED_BORDER_SIZE;
3306   int xoffset_right2 = ED_CHECKBUTTON_XSIZE + 2 * ED_GADGET_DISTANCE;
3307   int yoffset_right2 = ED_BORDER_SIZE;
3308   int xstart = 2;
3309   int ystart = 4;
3310   int i, x, y;
3311   static struct
3312   {
3313     int element;
3314     int *value;
3315     char *text;
3316   } elements_with_counter[] =
3317   {
3318     { EL_EMERALD,       &level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3319     { EL_BD_DIAMOND,    &level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3320     { EL_EMERALD_YELLOW,&level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3321     { EL_EMERALD_RED,   &level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3322     { EL_EMERALD_PURPLE,&level.score[SC_EDELSTEIN],     TEXT_COLLECTING },
3323     { EL_DIAMOND,       &level.score[SC_DIAMANT],       TEXT_COLLECTING },
3324     { EL_BUG_RIGHT,     &level.score[SC_KAEFER],        TEXT_SMASHING },
3325     { EL_BUG_UP,        &level.score[SC_KAEFER],        TEXT_SMASHING },
3326     { EL_BUG_LEFT,      &level.score[SC_KAEFER],        TEXT_SMASHING },
3327     { EL_BUG_DOWN,      &level.score[SC_KAEFER],        TEXT_SMASHING },
3328     { EL_BD_BUTTERFLY_RIGHT,&level.score[SC_KAEFER],    TEXT_SMASHING },
3329     { EL_BD_BUTTERFLY_UP,   &level.score[SC_KAEFER],    TEXT_SMASHING },
3330     { EL_BD_BUTTERFLY_LEFT, &level.score[SC_KAEFER],    TEXT_SMASHING },
3331     { EL_BD_BUTTERFLY_DOWN, &level.score[SC_KAEFER],    TEXT_SMASHING },
3332     { EL_SPACESHIP_RIGHT,&level.score[SC_FLIEGER],      TEXT_SMASHING },
3333     { EL_SPACESHIP_UP,   &level.score[SC_FLIEGER],      TEXT_SMASHING },
3334     { EL_SPACESHIP_LEFT, &level.score[SC_FLIEGER],      TEXT_SMASHING },
3335     { EL_SPACESHIP_DOWN, &level.score[SC_FLIEGER],      TEXT_SMASHING },
3336     { EL_BD_FIREFLY_RIGHT,&level.score[SC_FLIEGER],     TEXT_SMASHING },
3337     { EL_BD_FIREFLY_UP,   &level.score[SC_FLIEGER],     TEXT_SMASHING },
3338     { EL_BD_FIREFLY_LEFT, &level.score[SC_FLIEGER],     TEXT_SMASHING },
3339     { EL_BD_FIREFLY_DOWN, &level.score[SC_FLIEGER],     TEXT_SMASHING },
3340     { EL_YAMYAM,        &level.score[SC_MAMPFER],       TEXT_SMASHING },
3341     { EL_DARK_YAMYAM,   &level.score[SC_MAMPFER],       TEXT_SMASHING },
3342     { EL_ROBOT,         &level.score[SC_ROBOT],         TEXT_SMASHING },
3343     { EL_PACMAN_RIGHT,  &level.score[SC_PACMAN],        TEXT_SMASHING },
3344     { EL_PACMAN_UP,     &level.score[SC_PACMAN],        TEXT_SMASHING },
3345     { EL_PACMAN_LEFT,   &level.score[SC_PACMAN],        TEXT_SMASHING },
3346     { EL_PACMAN_DOWN,   &level.score[SC_PACMAN],        TEXT_SMASHING },
3347     { EL_NUT,           &level.score[SC_KOKOSNUSS],     TEXT_CRACKING },
3348     { EL_DYNAMITE,      &level.score[SC_DYNAMIT],       TEXT_COLLECTING },
3349     { EL_KEY_1,         &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3350     { EL_KEY_2,         &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3351     { EL_KEY_3,         &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3352     { EL_KEY_4,         &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3353     { EL_EM_KEY_1_FILE, &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3354     { EL_EM_KEY_2_FILE, &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3355     { EL_EM_KEY_3_FILE, &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3356     { EL_EM_KEY_4_FILE, &level.score[SC_SCHLUESSEL],    TEXT_COLLECTING },
3357     { EL_AMOEBA_WET,    &level.amoeba_speed,            TEXT_SPEED },
3358     { EL_AMOEBA_DRY,    &level.amoeba_speed,            TEXT_SPEED },
3359     { EL_AMOEBA_FULL,   &level.amoeba_speed,            TEXT_SPEED },
3360     { EL_BD_AMOEBA,     &level.amoeba_speed,            TEXT_SPEED },
3361     { EL_MAGIC_WALL,    &level.time_magic_wall,         TEXT_DURATION },
3362     { EL_ROBOT_WHEEL,   &level.time_wheel,              TEXT_DURATION },
3363     { -1, NULL, NULL }
3364   };
3365
3366   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
3367   ClearWindow();
3368   UnmapLevelEditorWindowGadgets();
3369
3370   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS_YPOS,
3371            "Element Settings", FONT_TITLE_1);
3372
3373   DrawElementBorder(SX + xstart * MINI_TILEX,
3374                     SY + ystart * MINI_TILEY + MINI_TILEY / 2,
3375                     TILEX, TILEY);
3376   DrawGraphicAnimationExt(drawto,
3377                           SX + xstart * MINI_TILEX,
3378                           SY + ystart * MINI_TILEY + MINI_TILEY / 2,
3379                           el2edimg(properties_element), -1, NO_MASKING);
3380
3381   FrameCounter = 0;     /* restart animation frame counter */
3382
3383   DrawTextF((xstart + 3) * MINI_TILEX, (ystart + 1) * MINI_TILEY,
3384             FONT_TEXT_1, getElementInfoText(properties_element));
3385
3386   num_elements_in_level = 0;
3387   for (y=0; y<lev_fieldy; y++)
3388     for (x=0; x<lev_fieldx; x++)
3389       if (Feld[x][y] == properties_element)
3390         num_elements_in_level++;
3391   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
3392
3393   DrawTextF(ED_SETTINGS_XPOS, 5 * TILEY, FONT_TEXT_1, "In this level:");
3394   DrawTextF(ED_SETTINGS_XPOS + 15 * getFontWidth(FONT_TEXT_1), 5 * TILEY,
3395             FONT_TEXT_2, "%d (%.2f%%)", num_elements_in_level,
3396             percentage);
3397
3398   /* check if there are elements where a score can be chosen for */
3399   for (i=0; elements_with_counter[i].element != -1; i++)
3400   {
3401     if (elements_with_counter[i].element == properties_element)
3402     {
3403       int x = counterbutton_info[counter_id].x + xoffset_right;
3404       int y = counterbutton_info[counter_id].y + yoffset_right;
3405
3406       counterbutton_info[counter_id].value = elements_with_counter[i].value;
3407       DrawTextF(x, y, FONT_TEXT_1, elements_with_counter[i].text);
3408
3409       ModifyEditorCounter(counter_id,  *counterbutton_info[counter_id].value);
3410       MapCounterButtons(counter_id);
3411       break;
3412     }
3413   }
3414
3415   if (HAS_CONTENT(properties_element) ||
3416       IS_CUSTOM_ELEMENT(properties_element))
3417   {
3418     /* draw stickybutton gadget */
3419     i = ED_CHECKBUTTON_ID_STICK_ELEMENT;
3420     x = checkbutton_info[i].x + xoffset_right2;
3421     y = checkbutton_info[i].y + yoffset_right2;
3422
3423     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3424     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3425                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3426     MapCheckbuttonGadget(i);
3427
3428     if (HAS_CONTENT(properties_element))
3429     {
3430       if (IS_AMOEBOID(properties_element))
3431         DrawAmoebaContentArea();
3432       else
3433         DrawElementContentAreas();
3434     }
3435     else if (IS_CUSTOM_ELEMENT(properties_element))
3436       DrawCustomChangedArea();
3437   }
3438
3439   if (IS_GEM(properties_element))
3440   {
3441     /* draw checkbutton gadget */
3442     i = ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS;
3443     x = checkbutton_info[i].x + xoffset_right2;
3444     y = checkbutton_info[i].y + yoffset_right2;
3445
3446     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3447     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3448                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3449     MapCheckbuttonGadget(i);
3450   }
3451
3452   if (IS_CUSTOM_ELEMENT(properties_element))
3453   {
3454     int nr = properties_element - EL_CUSTOM_START;
3455
3456     CopyCustomElementPropertiesToEditor();
3457
3458     /* draw checkbutton gadget */
3459     i = ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE;
3460     x = checkbutton_info[i].x + xoffset_right2;
3461     y = checkbutton_info[i].y + yoffset_right2;
3462
3463     checkbutton_info[i].value = &custom_element_properties[nr].indestructible;
3464
3465     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3466     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3467                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3468     MapCheckbuttonGadget(i);
3469
3470     /* draw checkbutton gadget */
3471     i = ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL;
3472     x = checkbutton_info[i].x + xoffset_right2;
3473     y = checkbutton_info[i].y + yoffset_right2;
3474
3475     checkbutton_info[i].value = &custom_element_properties[nr].can_fall;
3476
3477     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3478     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3479                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3480     MapCheckbuttonGadget(i);
3481
3482     /* draw checkbutton gadget */
3483     i = ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH;
3484     x = checkbutton_info[i].x + xoffset_right2;
3485     y = checkbutton_info[i].y + yoffset_right2;
3486
3487     checkbutton_info[i].value = &custom_element_properties[nr].can_smash;
3488
3489     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3490     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3491                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3492     MapCheckbuttonGadget(i);
3493
3494     /* draw checkbutton gadget */
3495     i = ED_CHECKBUTTON_ID_CUSTOM_PUSHABLE;
3496     x = checkbutton_info[i].x + xoffset_right2;
3497     y = checkbutton_info[i].y + yoffset_right2;
3498
3499     checkbutton_info[i].value = &custom_element_properties[nr].pushable;
3500
3501     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3502     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3503                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3504     MapCheckbuttonGadget(i);
3505
3506     /* draw checkbutton gadget */
3507     i = ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY;
3508     x = checkbutton_info[i].x + xoffset_right2;
3509     y = checkbutton_info[i].y + yoffset_right2;
3510
3511     checkbutton_info[i].value = &custom_element_properties[nr].slippery;
3512
3513     DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[i].text);
3514     ModifyGadget(level_editor_gadget[checkbutton_info[i].gadget_id],
3515                  GDI_CHECKED, *checkbutton_info[i].value, GDI_END);
3516     MapCheckbuttonGadget(i);
3517
3518     /* draw selectbox gadget */
3519     i = ED_SELECTBOX_ID_CUSTOM_CHANGE_CAUSE;
3520     x = selectbox_info[i].x + xoffset_right2;
3521     y = selectbox_info[i].y + yoffset_right2;
3522
3523     selectbox_info[i].index = &index_change_cause;
3524
3525     DrawTextF(x, y, FONT_TEXT_1, selectbox_info[i].text);
3526     ModifyGadget(level_editor_gadget[selectbox_info[i].gadget_id],
3527                  GDI_SELECTBOX_INDEX, *selectbox_info[i].index, GDI_END);
3528     MapSelectboxGadget(i);
3529   }
3530
3531   /* draw textbutton gadget */
3532   i = ED_TEXTBUTTON_ID_EDIT_PROPERTIES;
3533   x = textbutton_info[i].x + xoffset_right2;
3534   y = textbutton_info[i].y + yoffset_right2;
3535
3536   ModifyGadget(level_editor_gadget[textbutton_info[i].gadget_id],
3537                GDI_ACTIVE, FALSE, GDI_END);
3538   MapTextbuttonGadget(i);
3539
3540   /* draw textbutton gadget */
3541   i = ED_TEXTBUTTON_ID_SHOW_DESCRIPTION;
3542   x = textbutton_info[i].x + xoffset_right2;
3543   y = textbutton_info[i].y + yoffset_right2;
3544
3545   ModifyGadget(level_editor_gadget[textbutton_info[i].gadget_id],
3546                GDI_ACTIVE, TRUE, GDI_END);
3547   MapTextbuttonGadget(i);
3548
3549   if (IS_CUSTOM_ELEMENT(properties_element))
3550   {
3551     /* draw textbutton gadget */
3552     i = ED_TEXTBUTTON_ID_EDIT_CUSTOM_CHANGE;
3553     x = textbutton_info[i].x + xoffset_right2;
3554     y = textbutton_info[i].y + yoffset_right2;
3555
3556     ModifyGadget(level_editor_gadget[textbutton_info[i].gadget_id],
3557                  GDI_ACTIVE, TRUE, GDI_END);
3558     MapTextbuttonGadget(i);
3559   }
3560 }
3561
3562 static void DrawLineElement(int sx, int sy, int element, boolean change_level)
3563 {
3564   int lx = sx + level_xpos;
3565   int ly = sy + level_ypos;
3566
3567   DrawMiniElement(sx, sy, (element < 0 ? Feld[lx][ly] : element));
3568
3569   if (change_level)
3570     Feld[lx][ly] = element;
3571 }
3572
3573 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
3574                      int element, boolean change_level)
3575 {
3576   if (from_y == to_y)                   /* horizontal line */
3577   {
3578     int x;
3579     int y = from_y;
3580
3581     if (from_x > to_x)
3582       swap_numbers(&from_x, &to_x);
3583
3584     for (x=from_x; x<=to_x; x++)
3585       DrawLineElement(x, y, element, change_level);
3586   }
3587   else if (from_x == to_x)              /* vertical line */
3588   {
3589     int x = from_x;
3590     int y;
3591
3592     if (from_y > to_y)
3593       swap_numbers(&from_y, &to_y);
3594
3595     for (y=from_y; y<=to_y; y++)
3596       DrawLineElement(x, y, element, change_level);
3597   }
3598   else                                  /* diagonal line */
3599   {
3600     int len_x = ABS(to_x - from_x);
3601     int len_y = ABS(to_y - from_y);
3602     int x, y;
3603
3604     if (len_y < len_x)                  /* a < 1 */
3605     {
3606       float a = (float)len_y / (float)len_x;
3607
3608       if (from_x > to_x)
3609         swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
3610
3611       for (x=0; x<=len_x; x++)
3612       {
3613         y = (int)(a * x + 0.5) * (to_y < from_y ? -1 : +1);
3614         DrawLineElement(from_x + x, from_y + y, element, change_level);
3615       }
3616     }
3617     else                                /* a >= 1 */
3618     {
3619       float a = (float)len_x / (float)len_y;
3620
3621       if (from_y > to_y)
3622         swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
3623
3624       for (y=0; y<=len_y; y++)
3625       {
3626         x = (int)(a * y + 0.5) * (to_x < from_x ? -1 : +1);
3627         DrawLineElement(from_x + x, from_y + y, element, change_level);
3628       }
3629     }
3630   }
3631 }
3632
3633 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
3634                     int element, boolean change_level)
3635 {
3636   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
3637   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
3638   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
3639   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
3640 }
3641
3642 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
3643                           int element, boolean change_level)
3644 {
3645   int y;
3646
3647   if (from_y > to_y)
3648     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
3649
3650   for (y=from_y; y<=to_y; y++)
3651     DrawLine(from_x, y, to_x, y, element, change_level);
3652 }
3653
3654 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
3655                        int element, boolean change_level)
3656 {
3657   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
3658   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
3659   int len_x = ABS(to_x - from_x);
3660   int len_y = ABS(to_y - from_y);
3661   int radius, x, y;
3662
3663   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
3664
3665   /* not optimal (some points get drawn twice) but simple,
3666      and fast enough for the few points we are drawing */
3667
3668   for (x=0; x<=radius; x++)
3669   {
3670     int sx, sy, lx, ly;
3671
3672     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
3673
3674     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
3675     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
3676     lx = sx + level_xpos;
3677     ly = sy + level_ypos;
3678
3679     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
3680       DrawLineElement(sx, sy, element, change_level);
3681   }
3682
3683   for (y=0; y<=radius; y++)
3684   {
3685     int sx, sy, lx, ly;
3686
3687     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
3688
3689     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
3690     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
3691     lx = sx + level_xpos;
3692     ly = sy + level_ypos;
3693
3694     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
3695       DrawLineElement(sx, sy, element, change_level);
3696   }
3697 }
3698
3699 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
3700                     int element, boolean change_level)
3701 {
3702   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
3703   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
3704
3705   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
3706 }
3707
3708 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
3709 #if DRAW_CIRCLES_BUTTON_AVAILABLE
3710 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
3711                        int element, boolean change_level)
3712 {
3713   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
3714   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
3715   int mirror_to_x2 = from_x - (to_x2 - from_x);
3716   int mirror_to_y2 = from_y - (to_y2 - from_y);
3717
3718   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
3719   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
3720   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
3721   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element,change_level);
3722 }
3723 #endif
3724
3725 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
3726 {
3727   int from_sx, from_sy;
3728   int to_sx, to_sy;
3729
3730   if (from_x > to_x)
3731     swap_numbers(&from_x, &to_x);
3732
3733   if (from_y > to_y)
3734     swap_numbers(&from_y, &to_y);
3735
3736   from_sx = SX + from_x * MINI_TILEX;
3737   from_sy = SY + from_y * MINI_TILEY;
3738   to_sx = SX + to_x * MINI_TILEX + MINI_TILEX - 1;
3739   to_sy = SY + to_y * MINI_TILEY + MINI_TILEY - 1;
3740
3741   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
3742   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
3743   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
3744   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
3745
3746   if (from_x == to_x && from_y == to_y)
3747     MarkTileDirty(from_x/2, from_y/2);
3748   else
3749     redraw_mask |= REDRAW_FIELD;
3750 }
3751
3752 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
3753                        int element, boolean change_level)
3754 {
3755   if (element == -1 || change_level)
3756     DrawBox(from_x, from_y, to_x, to_y, -1, FALSE);
3757   else
3758     DrawAreaBorder(from_x, from_y, to_x, to_y);
3759 }
3760
3761 /* values for CopyBrushExt() */
3762 #define CB_AREA_TO_BRUSH        0
3763 #define CB_BRUSH_TO_CURSOR      1
3764 #define CB_BRUSH_TO_LEVEL       2
3765 #define CB_DELETE_OLD_CURSOR    3
3766
3767 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
3768                          int button, int mode)
3769 {
3770   static short brush_buffer[MAX_ED_FIELDX][MAX_ED_FIELDY];
3771   static int brush_width, brush_height;
3772   static int last_cursor_x = -1, last_cursor_y = -1;
3773   static boolean delete_old_brush;
3774   int new_element = BUTTON_ELEMENT(button);
3775   int x, y;
3776
3777   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
3778     return;
3779
3780   if (mode == CB_AREA_TO_BRUSH)
3781   {
3782     int from_lx, from_ly;
3783
3784     if (from_x > to_x)
3785       swap_numbers(&from_x, &to_x);
3786
3787     if (from_y > to_y)
3788       swap_numbers(&from_y, &to_y);
3789
3790     brush_width = to_x - from_x + 1;
3791     brush_height = to_y - from_y + 1;
3792
3793     from_lx = from_x + level_xpos;
3794     from_ly = from_y + level_ypos;
3795
3796     for (y=0; y<brush_height; y++)
3797     {
3798       for (x=0; x<brush_width; x++)
3799       {
3800         brush_buffer[x][y] = Feld[from_lx + x][from_ly + y];
3801
3802         if (button != 1)
3803           DrawLineElement(from_x + x, from_y + y, new_element, TRUE);
3804       }
3805     }
3806
3807     if (button != 1)
3808       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3809
3810     delete_old_brush = FALSE;
3811   }
3812   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
3813            mode == CB_BRUSH_TO_LEVEL)
3814   {
3815     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
3816     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
3817     int cursor_from_x = cursor_x - brush_width / 2;
3818     int cursor_from_y = cursor_y - brush_height / 2;
3819     int border_from_x = cursor_x, border_from_y = cursor_y;
3820     int border_to_x = cursor_x, border_to_y = cursor_y;
3821
3822     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
3823       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
3824
3825     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
3826         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
3827     {
3828       delete_old_brush = FALSE;
3829       return;
3830     }
3831
3832     for (y=0; y<brush_height; y++)
3833     {
3834       for (x=0; x<brush_width; x++)
3835       {
3836         int sx = cursor_from_x + x;
3837         int sy = cursor_from_y + y;
3838         int lx = sx + level_xpos;
3839         int ly = sy + level_ypos;
3840         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
3841         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
3842                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
3843                        brush_buffer[x][y] : new_element);
3844
3845         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
3846         {
3847           if (sx < border_from_x)
3848             border_from_x = sx;
3849           else if (sx > border_to_x)
3850             border_to_x = sx;
3851           if (sy < border_from_y)
3852             border_from_y = sy;
3853           else if (sy > border_to_y)
3854             border_to_y = sy;
3855
3856           DrawLineElement(sx, sy, element, change_level);
3857         }
3858       }
3859     }
3860
3861     if (mode != CB_DELETE_OLD_CURSOR)
3862       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
3863
3864     last_cursor_x = cursor_x;
3865     last_cursor_y = cursor_y;
3866     delete_old_brush = TRUE;
3867   }
3868 }
3869
3870 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
3871                             int button)
3872 {
3873   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
3874 }
3875
3876 static void CopyBrushToLevel(int x, int y, int button)
3877 {
3878   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
3879 }
3880
3881 static void CopyBrushToCursor(int x, int y)
3882 {
3883   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
3884 }
3885
3886 static void DeleteBrushFromCursor()
3887 {
3888   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
3889 }
3890
3891 static void FloodFill(int from_x, int from_y, int fill_element)
3892 {
3893   int i,x,y;
3894   int old_element;
3895   static int check[4][2] = { {-1,0}, {0,-1}, {1,0}, {0,1} };
3896   static int safety = 0;
3897
3898   /* check if starting field still has the desired content */
3899   if (Feld[from_x][from_y] == fill_element)
3900     return;
3901
3902   safety++;
3903
3904   if (safety > lev_fieldx*lev_fieldy)
3905     Error(ERR_EXIT, "Something went wrong in 'FloodFill()'. Please debug.");
3906
3907   old_element = Feld[from_x][from_y];
3908   Feld[from_x][from_y] = fill_element;
3909
3910   for(i=0;i<4;i++)
3911   {
3912     x = from_x + check[i][0];
3913     y = from_y + check[i][1];
3914
3915     if (IN_LEV_FIELD(x,y) && Feld[x][y] == old_element)
3916       FloodFill(x, y, fill_element);
3917   }
3918
3919   safety--;
3920 }
3921
3922 /* values for DrawLevelText() modes */
3923 #define TEXT_INIT               0
3924 #define TEXT_SETCURSOR          1
3925 #define TEXT_WRITECHAR          2
3926 #define TEXT_BACKSPACE          3
3927 #define TEXT_NEWLINE            4
3928 #define TEXT_END                5
3929 #define TEXT_QUERY_TYPING       6
3930
3931 static int DrawLevelText(int sx, int sy, char letter, int mode)
3932 {
3933   static short delete_buffer[MAX_LEV_FIELDX];
3934   static int start_sx, start_sy;
3935   static int last_sx, last_sy;
3936   static boolean typing = FALSE;
3937   int letter_element = EL_CHAR_ASCII0 + letter;
3938   int lx = 0, ly = 0;
3939
3940   /* map lower case letters to upper case and convert special characters */
3941   if (letter >= 'a' && letter <= 'z')
3942     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
3943   else if (letter == 'ä' || letter == 'Ä')
3944     letter_element = EL_CHAR_AUMLAUT;
3945   else if (letter == 'ö' || letter == 'Ö')
3946     letter_element = EL_CHAR_OUMLAUT;
3947   else if (letter == 'ü' || letter == 'Ü')
3948     letter_element = EL_CHAR_UUMLAUT;
3949   else if (letter == '^')
3950     letter_element = EL_CHAR_COPYRIGHT;
3951   else
3952     letter_element = EL_CHAR_ASCII0 + letter;
3953
3954   if (mode != TEXT_INIT)
3955   {
3956     if (!typing)
3957       return FALSE;
3958
3959     if (mode != TEXT_SETCURSOR)
3960     {
3961       sx = last_sx;
3962       sy = last_sy;
3963     }
3964
3965     lx = last_sx + level_xpos;
3966     ly = last_sy + level_ypos;
3967   }
3968
3969   switch (mode)
3970   {
3971     case TEXT_INIT:
3972       if (typing)
3973         DrawLevelText(0, 0, 0, TEXT_END);
3974
3975       typing = TRUE;
3976       start_sx = last_sx = sx;
3977       start_sy = last_sy = sy;
3978       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
3979       break;
3980
3981     case TEXT_SETCURSOR:
3982       DrawMiniElement(last_sx, last_sy, Feld[lx][ly]);
3983       DrawAreaBorder(sx, sy, sx, sy);
3984       last_sx = sx;
3985       last_sy = sy;
3986       break;
3987
3988     case TEXT_WRITECHAR:
3989       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
3990       {
3991         delete_buffer[sx - start_sx] = Feld[lx][ly];
3992         Feld[lx][ly] = letter_element;
3993
3994         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
3995           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
3996         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
3997           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
3998         else
3999           DrawLevelText(0, 0, 0, TEXT_END);
4000       }
4001       break;
4002
4003     case TEXT_BACKSPACE:
4004       if (sx > start_sx)
4005       {
4006         Feld[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
4007         DrawMiniElement(sx - 1, sy, Feld[lx - 1][ly]);
4008         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
4009       }
4010       break;
4011
4012     case TEXT_NEWLINE:
4013       if (sy + 1 < ed_fieldy - 1 && ly + 1 < lev_fieldy - 1)
4014         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
4015       else
4016         DrawLevelText(0, 0, 0, TEXT_END);
4017       break;
4018
4019     case TEXT_END:
4020       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
4021       DrawMiniElement(sx, sy, Feld[lx][ly]);
4022       typing = FALSE;
4023       break;
4024
4025     case TEXT_QUERY_TYPING:
4026       break;
4027
4028     default:
4029       break;
4030   }
4031
4032   return typing;
4033 }
4034
4035 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
4036                           int element, boolean change_level)
4037 {
4038   int lx = sx + level_xpos;
4039   int ly = sy + level_ypos;
4040
4041   if (element == -1)
4042     DrawMiniElement(sx, sy, Feld[lx][ly]);
4043   else
4044     DrawAreaBorder(sx, sy, sx, sy);
4045 }
4046
4047 static void CopyLevelToUndoBuffer(int mode)
4048 {
4049   static boolean accumulated_undo = FALSE;
4050   boolean new_undo_buffer_position = TRUE;
4051   int last_border_element;
4052   int x, y;
4053
4054   switch (mode)
4055   {
4056     case UNDO_IMMEDIATE:
4057       accumulated_undo = FALSE;
4058       break;
4059
4060     case UNDO_ACCUMULATE:
4061       if (accumulated_undo)
4062         new_undo_buffer_position = FALSE;
4063       accumulated_undo = TRUE;
4064       break;
4065
4066     default:
4067       break;
4068   }
4069
4070   if (new_undo_buffer_position)
4071   {
4072     /* new position in undo buffer ring */
4073     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
4074
4075     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
4076       undo_buffer_steps++;
4077   }
4078
4079   for(x=0; x<lev_fieldx; x++)
4080     for(y=0; y<lev_fieldy; y++)
4081       UndoBuffer[undo_buffer_position][x][y] = Feld[x][y];
4082
4083   /* check if drawing operation forces change of border style */
4084   last_border_element = BorderElement;
4085   SetBorderElement();
4086   if (BorderElement != last_border_element)
4087     DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4088
4089 #if 0
4090 #ifdef DEBUG
4091   printf("level saved to undo buffer\n");
4092 #endif
4093 #endif
4094 }
4095
4096 static void RandomPlacement(int new_element)
4097 {
4098   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
4099   int num_free_positions;
4100   int num_percentage;
4101   int num_elements;
4102   int x, y;
4103
4104   /* determine number of free positions for the new elements */
4105   /* (maybe this statement should be formatted a bit more readable...) */
4106   num_free_positions = 0;
4107   for (x=0; x<lev_fieldx; x++)
4108     for (y=0; y<lev_fieldy; y++)
4109       if ((free_position[x][y] =
4110            ((random_placement_background_restricted &&
4111              Feld[x][y] == random_placement_background_element) ||
4112             (!random_placement_background_restricted &&
4113              Feld[x][y] != new_element))) == TRUE)
4114         num_free_positions++;
4115
4116   /* determine number of new elements to place there */
4117   num_percentage = num_free_positions * random_placement_value / 100;
4118   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
4119                   num_percentage : random_placement_value);
4120
4121   /* if not more free positions than elements to place, fill whole level */
4122   if (num_elements >= num_free_positions)
4123   {
4124     for (x=0; x<lev_fieldx; x++)
4125       for (y=0; y<lev_fieldy; y++)
4126         Feld[x][y] = new_element;
4127
4128     DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4129     CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
4130     return;
4131   }
4132
4133   while (num_elements > 0)
4134   {
4135     x = RND(lev_fieldx);
4136     y = RND(lev_fieldy);
4137
4138     /* don't place element at the same position twice */
4139     if (free_position[x][y])
4140     {
4141       free_position[x][y] = FALSE;
4142       Feld[x][y] = new_element;
4143       num_elements--;
4144     }
4145   }
4146
4147   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4148   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
4149 }
4150
4151 void WrapLevel(int dx, int dy)
4152 {
4153   int wrap_dx = lev_fieldx - dx;
4154   int wrap_dy = lev_fieldy - dy;
4155   int x, y;
4156
4157   for(x=0; x<lev_fieldx; x++)
4158     for(y=0; y<lev_fieldy; y++)
4159       FieldBackup[x][y] = Feld[x][y];
4160
4161   for(x=0; x<lev_fieldx; x++)
4162     for(y=0; y<lev_fieldy; y++)
4163       Feld[x][y] =
4164         FieldBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
4165
4166   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4167   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
4168 }
4169
4170 static void HandleDrawingAreas(struct GadgetInfo *gi)
4171 {
4172   static boolean started_inside_drawing_area = FALSE;
4173   int id = gi->custom_id;
4174   boolean button_press_event;
4175   boolean button_release_event;
4176   boolean inside_drawing_area = !gi->event.off_borders;
4177   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
4178   int actual_drawing_function;
4179   int button = gi->event.button;
4180   int new_element = BUTTON_ELEMENT(button);
4181   int sx = gi->event.x, sy = gi->event.y;
4182   int min_sx = 0, min_sy = 0;
4183   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
4184   int lx = 0, ly = 0;
4185   int min_lx = 0, min_ly = 0;
4186   int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
4187   int x, y;
4188
4189   /* handle info callback for each invocation of action callback */
4190   gi->callback_info(gi);
4191
4192   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
4193   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
4194
4195   /* make sure to stay inside drawing area boundaries */
4196   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
4197   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
4198
4199   if (draw_level)
4200   {
4201     /* get positions inside level field */
4202     lx = sx + level_xpos;
4203     ly = sy + level_ypos;
4204
4205     if (!IN_LEV_FIELD(lx, ly))
4206       inside_drawing_area = FALSE;
4207
4208     /* make sure to stay inside level field boundaries */
4209     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
4210     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
4211
4212     /* correct drawing area positions accordingly */
4213     sx = lx - level_xpos;
4214     sy = ly - level_ypos;
4215   }
4216
4217   if (button_press_event)
4218     started_inside_drawing_area = inside_drawing_area;
4219
4220   if (!started_inside_drawing_area)
4221     return;
4222
4223   if (!button && !button_release_event)
4224     return;
4225
4226   /* automatically switch to 'single item' drawing mode, if needed */
4227   actual_drawing_function =
4228     (draw_level ? drawing_function : GADGET_ID_SINGLE_ITEMS);
4229
4230   switch (actual_drawing_function)
4231   {
4232     case GADGET_ID_SINGLE_ITEMS:
4233       if (draw_level)
4234       {
4235         if (button_release_event)
4236         {
4237           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
4238
4239           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
4240               !inside_drawing_area)
4241             DeleteBrushFromCursor();
4242         }
4243
4244         if (!button)
4245           break;
4246
4247         if (draw_with_brush)
4248         {
4249           if (!button_release_event)
4250             CopyBrushToLevel(sx, sy, button);
4251         }
4252         else if (new_element != Feld[lx][ly])
4253         {
4254           if (new_element == EL_PLAYER_1)
4255           {
4256             /* remove player at old position */
4257             for(y=0; y<lev_fieldy; y++)
4258             {
4259               for(x=0; x<lev_fieldx; x++)
4260               {
4261                 if (Feld[x][y] == EL_PLAYER_1)
4262                 {
4263                   Feld[x][y] = EL_EMPTY;
4264                   if (x - level_xpos >= 0 && x - level_xpos < ed_fieldx &&
4265                       y - level_ypos >= 0 && y - level_ypos < ed_fieldy)
4266                     DrawMiniElement(x - level_xpos, y - level_ypos,
4267                                     EL_EMPTY);
4268                 }
4269               }
4270             }
4271           }
4272
4273           Feld[lx][ly] = new_element;
4274           DrawMiniElement(sx, sy, new_element);
4275         }
4276       }
4277       else
4278       {
4279         DrawMiniGraphicExt(drawto,
4280                            gi->x + sx * MINI_TILEX,
4281                            gi->y + sy * MINI_TILEY,
4282                            el2edimg(new_element));
4283         DrawMiniGraphicExt(window,
4284                            gi->x + sx * MINI_TILEX,
4285                            gi->y + sy * MINI_TILEY,
4286                            el2edimg(new_element));
4287
4288         if (id == GADGET_ID_AMOEBA_CONTENT)
4289           level.amoeba_content = new_element;
4290         else if (id == GADGET_ID_CUSTOM_CHANGED &&
4291                  IS_CUSTOM_ELEMENT(properties_element))
4292         {
4293           int i = properties_element - EL_CUSTOM_START;
4294
4295           level.custom_element_successor[i] = new_element;
4296         }
4297         else if (id == GADGET_ID_RANDOM_BACKGROUND)
4298           random_placement_background_element = new_element;
4299         else if (id >= GADGET_ID_ELEM_CONTENT_0 &&
4300                  id <= GADGET_ID_ELEM_CONTENT_7)
4301           level.yam_content[id - GADGET_ID_ELEM_CONTENT_0][sx][sy] =
4302             new_element;
4303       }
4304       break;
4305
4306     case GADGET_ID_CONNECTED_ITEMS:
4307       {
4308         static int last_sx = -1;
4309         static int last_sy = -1;
4310
4311         if (button_release_event)
4312           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
4313
4314         if (button)
4315         {
4316           if (!button_press_event)
4317             DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
4318
4319           last_sx = sx;
4320           last_sy = sy;
4321         }
4322       }
4323       break;
4324
4325     case GADGET_ID_LINE:
4326     case GADGET_ID_ARC:
4327     case GADGET_ID_RECTANGLE:
4328     case GADGET_ID_FILLED_BOX:
4329     case GADGET_ID_GRAB_BRUSH:
4330     case GADGET_ID_TEXT:
4331       {
4332         static int last_sx = -1;
4333         static int last_sy = -1;
4334         static int start_sx = -1;
4335         static int start_sy = -1;
4336         void (*draw_func)(int, int, int, int, int, boolean);
4337
4338         if (drawing_function == GADGET_ID_LINE)
4339           draw_func = DrawLine;
4340         else if (drawing_function == GADGET_ID_ARC)
4341           draw_func = DrawArc;
4342         else if (drawing_function == GADGET_ID_RECTANGLE)
4343           draw_func = DrawBox;
4344         else if (drawing_function == GADGET_ID_FILLED_BOX)
4345           draw_func = DrawFilledBox;
4346         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
4347           draw_func = SelectArea;
4348         else /* (drawing_function == GADGET_ID_TEXT) */
4349           draw_func = SetTextCursor;
4350
4351         if (button_press_event)
4352         {
4353           draw_func(sx, sy, sx, sy, new_element, FALSE);
4354           start_sx = last_sx = sx;
4355           start_sy = last_sy = sy;
4356
4357           if (drawing_function == GADGET_ID_TEXT)
4358             DrawLevelText(0, 0, 0, TEXT_END);
4359         }
4360         else if (button_release_event)
4361         {
4362           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
4363           if (drawing_function == GADGET_ID_GRAB_BRUSH)
4364           {
4365             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
4366             CopyBrushToCursor(sx, sy);
4367             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
4368                           MB_LEFTBUTTON);
4369             draw_with_brush = TRUE;
4370           }
4371           else if (drawing_function == GADGET_ID_TEXT)
4372             DrawLevelText(sx, sy, 0, TEXT_INIT);
4373           else
4374             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
4375         }
4376         else if (last_sx != sx || last_sy != sy)
4377         {
4378           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
4379           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
4380           last_sx = sx;
4381           last_sy = sy;
4382         }
4383       }
4384       break;
4385
4386     case GADGET_ID_FLOOD_FILL:
4387       if (button_press_event && Feld[lx][ly] != new_element)
4388       {
4389         FloodFill(lx, ly, new_element);
4390         DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4391         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
4392       }
4393       break;
4394
4395     case GADGET_ID_PICK_ELEMENT:
4396       if (button_release_event)
4397         ClickOnGadget(level_editor_gadget[last_drawing_function],
4398                       MB_LEFTBUTTON);
4399       else
4400         PickDrawingElement(button, Feld[lx][ly]);
4401
4402       break;
4403
4404     default:
4405       break;
4406   }
4407 }
4408
4409 static void HandleCounterButtons(struct GadgetInfo *gi)
4410 {
4411   int gadget_id = gi->custom_id;
4412   int counter_id = gi->custom_type_id;
4413   int button = gi->event.button;
4414   int *counter_value = counterbutton_info[counter_id].value;
4415   int step = BUTTON_STEPSIZE(button) *
4416     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
4417
4418   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
4419   {
4420     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
4421     boolean released = (gi->event.type == GD_EVENT_RELEASED);
4422     boolean level_changed = LevelChanged();
4423
4424     if ((level_changed && pressed) || (!level_changed && released))
4425       return;
4426
4427     if (level_changed && !Request("Level has changed! Discard changes ?",
4428                                   REQ_ASK))
4429     {
4430       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
4431         ModifyEditorCounter(counter_id, *counter_value);
4432       return;
4433     }
4434   }
4435
4436   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
4437     *counter_value = gi->text.number_value;
4438   else
4439     ModifyEditorCounter(counter_id, *counter_value + step);
4440
4441   switch (counter_id)
4442   {
4443     case ED_COUNTER_ID_ELEM_CONTENT:
4444       DrawElementContentAreas();
4445       break;
4446
4447     case ED_COUNTER_ID_LEVEL_XSIZE:
4448     case ED_COUNTER_ID_LEVEL_YSIZE:
4449       lev_fieldx = level.fieldx;
4450       lev_fieldy = level.fieldy;
4451       break;
4452
4453     case ED_COUNTER_ID_SELECT_LEVEL:
4454       LoadLevel(level_nr);
4455       TapeErase();
4456       ResetUndoBuffer();
4457       DrawEditModeWindow();
4458       break;
4459
4460     default:
4461       break;
4462   }
4463 }
4464
4465 static void HandleTextInputGadgets(struct GadgetInfo *gi)
4466 {
4467   strcpy(textinput_info[gi->custom_type_id].value, gi->text.value);
4468 }
4469
4470 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
4471 {
4472   int type_id = gi->custom_type_id;
4473
4474   *selectbox_info[type_id].index = gi->selectbox.index;
4475
4476 #if 0
4477   printf("Selected text value: '%s' [%d]\n",
4478          selectbox_info[type_id].options[gi->selectbox.index].text,
4479          selectbox_info[type_id].options[gi->selectbox.index].value);
4480 #endif
4481 }
4482
4483 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
4484 {
4485   int i;
4486
4487   for (i=0; i<ED_NUM_TEXTBUTTON; i++)
4488   {
4489     struct GadgetInfo *gii = level_editor_gadget[textbutton_info[i].gadget_id];
4490     boolean active = (gii->custom_type_id != gi->custom_type_id);
4491
4492     ModifyGadget(level_editor_gadget[textbutton_info[i].gadget_id],
4493                  GDI_ACTIVE, active, GDI_END);
4494   }
4495
4496 #if 0
4497   printf("text button %d pressed\n", gi->custom_type_id);
4498 #endif
4499 }
4500
4501 static void HandleRadiobuttons(struct GadgetInfo *gi)
4502 {
4503   *radiobutton_info[gi->custom_type_id].value =
4504     radiobutton_info[gi->custom_type_id].checked_value;
4505 }
4506
4507 static void HandleCheckbuttons(struct GadgetInfo *gi)
4508 {
4509   int type_id = gi->custom_type_id;
4510
4511   *checkbutton_info[type_id].value ^= TRUE;
4512
4513   if (type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
4514       type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST)
4515     CopyCustomElementPropertiesToGame();
4516 }
4517
4518 static void HandleControlButtons(struct GadgetInfo *gi)
4519 {
4520   int id = gi->custom_id;
4521   int button = gi->event.button;
4522   int step = BUTTON_STEPSIZE(button);
4523   int new_element = BUTTON_ELEMENT(button);
4524   int i, x, y;
4525
4526   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
4527     DrawLevelText(0, 0, 0, TEXT_END);
4528
4529   if (id < ED_NUM_CTRL1_BUTTONS && id != GADGET_ID_PROPERTIES &&
4530       edit_mode != ED_MODE_DRAWING)
4531   {
4532     DrawDrawingWindow();
4533     edit_mode = ED_MODE_DRAWING;
4534   }
4535
4536   switch (id)
4537   {
4538     case GADGET_ID_SCROLL_LEFT:
4539       if (level_xpos >= 0)
4540       {
4541         if (lev_fieldx < ed_fieldx - 2)
4542           break;
4543
4544         level_xpos -= step;
4545         if (level_xpos < -1)
4546           level_xpos = -1;
4547         if (button == 1)
4548           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
4549         else
4550           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4551
4552         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
4553                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
4554       }
4555       break;
4556
4557     case GADGET_ID_SCROLL_RIGHT:
4558       if (level_xpos <= lev_fieldx - ed_fieldx)
4559       {
4560         if (lev_fieldx < ed_fieldx - 2)
4561           break;
4562
4563         level_xpos += step;
4564         if (level_xpos > lev_fieldx - ed_fieldx + 1)
4565           level_xpos = lev_fieldx - ed_fieldx + 1;
4566         if (button == 1)
4567           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
4568         else
4569           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4570
4571         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
4572                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
4573       }
4574       break;
4575
4576     case GADGET_ID_SCROLL_UP:
4577       if (level_ypos >= 0)
4578       {
4579         if (lev_fieldy < ed_fieldy - 2)
4580           break;
4581
4582         level_ypos -= step;
4583         if (level_ypos < -1)
4584           level_ypos = -1;
4585         if (button == 1)
4586           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
4587         else
4588           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4589
4590         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
4591                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
4592       }
4593       break;
4594
4595     case GADGET_ID_SCROLL_DOWN:
4596       if (level_ypos <= lev_fieldy - ed_fieldy)
4597       {
4598         if (lev_fieldy < ed_fieldy - 2)
4599           break;
4600
4601         level_ypos += step;
4602         if (level_ypos > lev_fieldy - ed_fieldy + 1)
4603           level_ypos = lev_fieldy - ed_fieldy + 1;
4604         if (button == 1)
4605           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_UP);
4606         else
4607           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4608
4609         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
4610                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
4611       }
4612       break;
4613
4614     case GADGET_ID_SCROLL_HORIZONTAL:
4615       level_xpos = gi->event.item_position - 1;
4616       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4617       break;
4618
4619     case GADGET_ID_SCROLL_VERTICAL:
4620       level_ypos = gi->event.item_position - 1;
4621       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4622       break;
4623
4624     case GADGET_ID_SCROLL_LIST_UP:
4625     case GADGET_ID_SCROLL_LIST_DOWN:
4626     case GADGET_ID_SCROLL_LIST_VERTICAL:
4627       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
4628         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
4629       else
4630       {
4631         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
4632         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
4633
4634         if (element_shift < 0)
4635           element_shift = 0;
4636         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
4637           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
4638
4639         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
4640                      GDI_SCROLLBAR_ITEM_POSITION,
4641                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
4642       }
4643
4644       for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
4645       {
4646         int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
4647         struct GadgetInfo *gi = level_editor_gadget[gadget_id];
4648         struct GadgetDesign *gd = &gi->deco.design;
4649         int element = editor_elements[element_shift + i];
4650
4651         UnmapGadget(gi);
4652         getMiniGraphicSource(el2edimg(element), &gd->bitmap, &gd->x, &gd->y);
4653         ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
4654         MapGadget(gi);
4655       }
4656       break;
4657
4658     case GADGET_ID_WRAP_LEFT:
4659       WrapLevel(-step, 0);
4660       break;
4661
4662     case GADGET_ID_WRAP_RIGHT:
4663       WrapLevel(step, 0);
4664       break;
4665
4666     case GADGET_ID_WRAP_UP:
4667       WrapLevel(0, -step);
4668       break;
4669
4670     case GADGET_ID_WRAP_DOWN:
4671       WrapLevel(0, step);
4672       break;
4673
4674     case GADGET_ID_SINGLE_ITEMS:
4675     case GADGET_ID_CONNECTED_ITEMS:
4676     case GADGET_ID_LINE:
4677     case GADGET_ID_ARC:
4678     case GADGET_ID_TEXT:
4679     case GADGET_ID_RECTANGLE:
4680     case GADGET_ID_FILLED_BOX:
4681     case GADGET_ID_FLOOD_FILL:
4682     case GADGET_ID_GRAB_BRUSH:
4683     case GADGET_ID_PICK_ELEMENT:
4684       last_drawing_function = drawing_function;
4685       drawing_function = id;
4686       draw_with_brush = FALSE;
4687       break;
4688
4689     case GADGET_ID_RANDOM_PLACEMENT:
4690       RandomPlacement(new_element);
4691       break;
4692
4693     case GADGET_ID_PROPERTIES:
4694       if (edit_mode != ED_MODE_PROPERTIES)
4695       {
4696         properties_element = new_element;
4697         DrawPropertiesWindow();
4698         edit_mode = ED_MODE_PROPERTIES;
4699       }
4700       else
4701       {
4702         DrawDrawingWindow();
4703         edit_mode = ED_MODE_DRAWING;
4704       }
4705       break;
4706
4707     case GADGET_ID_UNDO:
4708       if (undo_buffer_steps == 0)
4709       {
4710         Request("Undo buffer empty !", REQ_CONFIRM);
4711         break;
4712       }
4713
4714       undo_buffer_position =
4715         (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
4716       undo_buffer_steps--;
4717
4718       for(x=0; x<lev_fieldx; x++)
4719         for(y=0; y<lev_fieldy; y++)
4720           Feld[x][y] = UndoBuffer[undo_buffer_position][x][y];
4721       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos,level_ypos);
4722       break;
4723
4724     case GADGET_ID_INFO:
4725       if (edit_mode != ED_MODE_INFO)
4726       {
4727         DrawLevelInfoWindow();
4728         edit_mode = ED_MODE_INFO;
4729       }
4730       else
4731       {
4732         DrawDrawingWindow();
4733         edit_mode = ED_MODE_DRAWING;
4734       }
4735       break;
4736
4737     case GADGET_ID_CLEAR:
4738       for(x=0; x<MAX_LEV_FIELDX; x++)
4739         for(y=0; y<MAX_LEV_FIELDY; y++)
4740           Feld[x][y] = (button == 1 ? EL_EMPTY : new_element);
4741       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
4742
4743       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4744       break;
4745
4746     case GADGET_ID_SAVE:
4747       if (leveldir_current->readonly)
4748       {
4749         Request("This level is read only !", REQ_CONFIRM);
4750         break;
4751       }
4752
4753       if (!LevelContainsPlayer)
4754         Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
4755       else
4756       {
4757         if (Request("Save this level and kill the old ?", REQ_ASK))
4758         {
4759           CopyPlayfield(Feld, Ur);
4760
4761           SaveLevel(level_nr);
4762         }
4763       }
4764       break;
4765
4766     case GADGET_ID_TEST:
4767       if (!LevelContainsPlayer)
4768         Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
4769       else
4770       {
4771         if (LevelChanged())
4772           level.game_version = GAME_VERSION_ACTUAL;
4773
4774         CopyPlayfield(Ur, FieldBackup);
4775         CopyPlayfield(Feld, Ur);
4776
4777         UnmapLevelEditorGadgets();
4778         UndrawSpecialEditorDoor();
4779
4780         CloseDoor(DOOR_CLOSE_ALL);
4781
4782         DrawCompleteVideoDisplay();
4783
4784         if (setup.autorecord)
4785           TapeStartRecording();
4786
4787         level_editor_test_game = TRUE;
4788         game_status = PLAYING;
4789
4790         InitGame();
4791       }
4792       break;
4793
4794     case GADGET_ID_EXIT:
4795       RequestExitLevelEditor(TRUE);     /* if level has changed, ask user */
4796       break;
4797
4798     default:
4799       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
4800           id <= GADGET_ID_ELEMENTLIST_LAST)
4801       {
4802         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
4803         int new_element = editor_elements[element_position + element_shift];
4804
4805         PickDrawingElement(button, new_element);
4806
4807 #if 1
4808         if (!stick_element_properties_window)
4809 #else
4810         if (!HAS_CONTENT(properties_element) ||
4811             !stick_element_properties_window)
4812 #endif
4813         {
4814           properties_element = new_element;
4815           if (edit_mode == ED_MODE_PROPERTIES)
4816             DrawPropertiesWindow();
4817         }
4818
4819         if (drawing_function == GADGET_ID_PICK_ELEMENT)
4820           ClickOnGadget(level_editor_gadget[last_drawing_function],
4821                         MB_LEFTBUTTON);
4822       }
4823 #ifdef DEBUG
4824       else if (gi->event.type == GD_EVENT_PRESSED)
4825         printf("default: HandleControlButtons: GD_EVENT_PRESSED(%d)\n", id);
4826       else if (gi->event.type == GD_EVENT_RELEASED)
4827         printf("default: HandleControlButtons: GD_EVENT_RELEASED(%d)\n", id);
4828       else if (gi->event.type == GD_EVENT_MOVING)
4829         printf("default: HandleControlButtons: GD_EVENT_MOVING(%d)\n", id);
4830       else
4831         printf("default: HandleControlButtons: ? (id == %d)\n", id);
4832 #endif
4833       break;
4834   }
4835 }
4836
4837 void HandleLevelEditorKeyInput(Key key)
4838 {
4839   char letter = getCharFromKey(key);
4840   int button = MB_LEFTBUTTON;
4841
4842   if (drawing_function == GADGET_ID_TEXT &&
4843       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
4844   {
4845     if (letter)
4846       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
4847     else if (key == KSYM_Delete || key == KSYM_BackSpace)
4848       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
4849     else if (key == KSYM_Return)
4850       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
4851     else if (key == KSYM_Escape)
4852       DrawLevelText(0, 0, 0, TEXT_END);
4853   }
4854   else if (button_status == MB_RELEASED)
4855   {
4856     int i, id = GADGET_ID_NONE;
4857
4858     switch (key)
4859     {
4860       case KSYM_Left:
4861         id = GADGET_ID_SCROLL_LEFT;
4862         break;
4863       case KSYM_Right:
4864         id = GADGET_ID_SCROLL_RIGHT;
4865         break;
4866       case KSYM_Up:
4867         id = GADGET_ID_SCROLL_UP;
4868         break;
4869       case KSYM_Down:
4870         id = GADGET_ID_SCROLL_DOWN;
4871         break;
4872       case KSYM_Page_Up:
4873         id = GADGET_ID_SCROLL_LIST_UP;
4874         button = MB_RIGHTBUTTON;
4875         break;
4876       case KSYM_Page_Down:
4877         id = GADGET_ID_SCROLL_LIST_DOWN;
4878         button = MB_RIGHTBUTTON;
4879         break;
4880
4881       case KSYM_Escape:
4882         if (edit_mode == ED_MODE_DRAWING)
4883         {
4884           RequestExitLevelEditor(setup.ask_on_escape);
4885         }
4886         else
4887         {
4888           DrawDrawingWindow();
4889           edit_mode = ED_MODE_DRAWING;
4890         }
4891         break;
4892
4893       default:
4894         break;
4895     }
4896
4897     if (id != GADGET_ID_NONE)
4898       ClickOnGadget(level_editor_gadget[id], button);
4899     else if (letter == '.')
4900       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
4901     else if (key == KSYM_Return || key == setup.shortcut.toggle_pause)
4902       ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
4903     else
4904       for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
4905         if (letter && letter == control_info[i].shortcut)
4906           if (!anyTextGadgetActive())
4907             ClickOnGadget(level_editor_gadget[i], button);
4908   }
4909 }
4910
4911 void HandleLevelEditorIdle()
4912 {
4913   static unsigned long action_delay = 0;
4914   unsigned long action_delay_value = GameFrameDelay;
4915   int xpos = 1, ypos = 2;
4916
4917   if (edit_mode != ED_MODE_PROPERTIES)
4918     return;
4919
4920   if (!DelayReached(&action_delay, action_delay_value))
4921     return;
4922
4923   DrawGraphicAnimationExt(drawto,
4924                           SX + xpos * TILEX,
4925                           SY + ypos * TILEY + MINI_TILEY / 2,
4926                           el2edimg(properties_element), -1, NO_MASKING);
4927
4928   MarkTileDirty(xpos, ypos);
4929   MarkTileDirty(xpos, ypos + 1);
4930
4931   FrameCounter++;       /* increase animation frame counter */
4932 }
4933
4934 void ClearEditorGadgetInfoText()
4935 {
4936   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
4937 }
4938
4939 void HandleEditorGadgetInfoText(void *ptr)
4940 {
4941   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
4942   char infotext[MAX_OUTPUT_LINESIZE + 1];
4943   char shortcut[MAX_OUTPUT_LINESIZE + 1];
4944   int max_infotext_len = getMaxInfoTextLength();
4945
4946   if (game_status != LEVELED)
4947     return;
4948
4949   ClearEditorGadgetInfoText();
4950
4951   if (gi->event.type == GD_EVENT_INFO_LEAVING)
4952     return;
4953
4954   /* misuse this function to delete brush cursor, if needed */
4955   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
4956     DeleteBrushFromCursor();
4957
4958   if (gi == NULL || gi->info_text == NULL)
4959     return;
4960
4961   strncpy(infotext, gi->info_text, max_infotext_len);
4962   infotext[max_infotext_len] = '\0';
4963
4964   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
4965   {
4966     int key = control_info[gi->custom_id].shortcut;
4967
4968     if (key)
4969     {
4970       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)      /* special case 1 */
4971         sprintf(shortcut, " ('.' or '%c')", key);
4972       else if (gi->custom_id == GADGET_ID_TEST)         /* special case 2 */
4973         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
4974       else                                              /* normal case */
4975         sprintf(shortcut, " ('%s%c')",
4976                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
4977
4978       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
4979         strcat(infotext, shortcut);
4980     }
4981   }
4982
4983   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, FONT_TEXT_2);
4984 }
4985
4986 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
4987 {
4988   static int start_lx, start_ly;
4989   char *infotext;
4990   int id = gi->custom_id;
4991   int sx = gi->event.x;
4992   int sy = gi->event.y;
4993   int lx = sx + level_xpos;
4994   int ly = sy + level_ypos;
4995   int min_sx = 0, min_sy = 0;
4996   int max_sx = gi->drawing.area_xsize - 1;
4997   int max_sy = gi->drawing.area_ysize - 1;
4998
4999   ClearEditorGadgetInfoText();
5000
5001   if (gi->event.type == GD_EVENT_INFO_LEAVING)
5002     return;
5003
5004   /* make sure to stay inside drawing area boundaries */
5005   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
5006   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
5007
5008   if (id == GADGET_ID_DRAWING_LEVEL)
5009   {
5010     if (button_status)
5011     {
5012       int min_lx = 0, min_ly = 0;
5013       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
5014
5015       /* get positions inside level field */
5016       lx = sx + level_xpos;
5017       ly = sy + level_ypos;
5018
5019       /* make sure to stay inside level field boundaries */
5020       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
5021       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
5022
5023       /* correct drawing area positions accordingly */
5024       sx = lx - level_xpos;
5025       sy = ly - level_ypos;
5026     }
5027
5028     if (IN_ED_FIELD(sx,sy) && IN_LEV_FIELD(lx, ly))
5029     {
5030       if (button_status)        /* if (gi->state == GD_BUTTON_PRESSED) */
5031       {
5032         if (gi->event.type == GD_EVENT_PRESSED)
5033         {
5034           start_lx = lx;
5035           start_ly = ly;
5036         }
5037
5038         switch (drawing_function)
5039         {
5040           case GADGET_ID_SINGLE_ITEMS:
5041             infotext = "Drawing single items";
5042             break;
5043           case GADGET_ID_CONNECTED_ITEMS:
5044             infotext = "Drawing connected items";
5045             break;
5046           case GADGET_ID_LINE:
5047             infotext = "Drawing line";
5048             break;
5049           case GADGET_ID_ARC:
5050             infotext = "Drawing arc";
5051             break;
5052           case GADGET_ID_TEXT:
5053             infotext = "Setting text cursor";
5054             break;
5055           case GADGET_ID_RECTANGLE:
5056             infotext = "Drawing rectangle";
5057             break;
5058           case GADGET_ID_FILLED_BOX:
5059             infotext = "Drawing filled box";
5060             break;
5061           case GADGET_ID_FLOOD_FILL:
5062             infotext = "Flood fill";
5063             break;
5064           case GADGET_ID_GRAB_BRUSH:
5065             infotext = "Grabbing brush";
5066             break;
5067           case GADGET_ID_PICK_ELEMENT:
5068             infotext = "Picking element";
5069             break;
5070
5071           default:
5072             infotext = "Drawing position";
5073             break;
5074         }
5075
5076         if (drawing_function == GADGET_ID_PICK_ELEMENT)
5077           DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
5078                     "%s: %d, %d", infotext, lx, ly);
5079         else
5080           DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
5081                     "%s: %d, %d", infotext,
5082                     ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
5083       }
5084       else if (drawing_function == GADGET_ID_PICK_ELEMENT)
5085         DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
5086                   "%s", getElementInfoText(Feld[lx][ly]));
5087       else
5088         DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
5089                   "Level position: %d, %d", lx, ly);
5090     }
5091
5092     /* misuse this function to draw brush cursor, if needed */
5093     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
5094     {
5095       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
5096         CopyBrushToCursor(sx, sy);
5097       else
5098         DeleteBrushFromCursor();
5099     }
5100   }
5101   else if (id == GADGET_ID_AMOEBA_CONTENT)
5102     DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
5103               "Amoeba content");
5104   else if (id == GADGET_ID_CUSTOM_CHANGED)
5105     DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
5106               "Next element after change");
5107   else if (id == GADGET_ID_RANDOM_BACKGROUND)
5108     DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
5109               "Random placement background");
5110   else
5111     DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
5112               "Content area %d position: %d, %d",
5113               id - GADGET_ID_ELEM_CONTENT_0 + 1, sx, sy);
5114 }
5115
5116 void RequestExitLevelEditor(boolean ask_if_level_has_changed)
5117 {
5118   if (!ask_if_level_has_changed ||
5119       !LevelChanged() ||
5120       Request("Level has changed! Exit without saving ?",
5121               REQ_ASK | REQ_STAY_OPEN))
5122   {
5123     CloseDoor(DOOR_CLOSE_1);
5124     /*
5125     CloseDoor(DOOR_CLOSE_ALL);
5126     */
5127     game_status = MAINMENU;
5128     DrawMainMenu();
5129   }
5130   else
5131   {
5132     CloseDoor(DOOR_CLOSE_1);
5133     BlitBitmap(bitmap_db_door, bitmap_db_door,
5134                DOOR_GFX_PAGEX2, DOOR_GFX_PAGEY1, DXSIZE,DYSIZE,
5135                DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
5136     OpenDoor(DOOR_OPEN_1);
5137   }
5138 }