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
  26 /*
  27   -----------------------------------------------------------------------------
  28   screen and artwork graphic pixel position definitions
  29   -----------------------------------------------------------------------------
  30 */
  31
  32 /* positions in the level editor */
  33 #define ED_WIN_MB_LEFT_XPOS             6
  34 #define ED_WIN_MB_LEFT_YPOS             258
  35 #define ED_WIN_MB_MIDDLE_XPOS           42
  36 #define ED_WIN_MB_MIDDLE_YPOS           ED_WIN_MB_LEFT_YPOS
  37 #define ED_WIN_MB_RIGHT_XPOS            78
  38 #define ED_WIN_MB_RIGHT_YPOS            ED_WIN_MB_LEFT_YPOS
  39
  40 /* values for the control window */
  41 #define ED_CTRL_BUTTONS_GFX_YPOS        236
  42 #define ED_CTRL_BUTTONS_ALT_GFX_YPOS    142
  43
  44 #define ED_CTRL1_BUTTONS_HORIZ          4
  45 #define ED_CTRL1_BUTTONS_VERT           4
  46 #define ED_CTRL1_BUTTON_XSIZE           22
  47 #define ED_CTRL1_BUTTON_YSIZE           22
  48 #define ED_CTRL1_BUTTONS_XPOS           6
  49 #define ED_CTRL1_BUTTONS_YPOS           6
  50 #define ED_CTRL2_BUTTONS_HORIZ          3
  51 #define ED_CTRL2_BUTTONS_VERT           2
  52 #define ED_CTRL2_BUTTON_XSIZE           30
  53 #define ED_CTRL2_BUTTON_YSIZE           20
  54 #define ED_CTRL2_BUTTONS_XPOS           5
  55 #define ED_CTRL2_BUTTONS_YPOS           99
  56 #define ED_NUM_CTRL1_BUTTONS   (ED_CTRL1_BUTTONS_HORIZ * ED_CTRL1_BUTTONS_VERT)
  57 #define ED_NUM_CTRL2_BUTTONS   (ED_CTRL2_BUTTONS_HORIZ * ED_CTRL2_BUTTONS_VERT)
  58 #define ED_NUM_CTRL_BUTTONS    (ED_NUM_CTRL1_BUTTONS + ED_NUM_CTRL2_BUTTONS)
  59
  60 /* values for the element list */
  61 #define ED_ELEMENTLIST_XPOS             5
  62 #define ED_ELEMENTLIST_YPOS             30
  63 #define ED_ELEMENTLIST_XSIZE            20
  64 #define ED_ELEMENTLIST_YSIZE            20
  65 #define ED_ELEMENTLIST_BUTTONS_HORIZ    4
  66 #define ED_ELEMENTLIST_BUTTONS_VERT     11
  67 #define ED_NUM_ELEMENTLIST_BUTTONS      (ED_ELEMENTLIST_BUTTONS_HORIZ * \
  68                                          ED_ELEMENTLIST_BUTTONS_VERT)
  69
  70 /* standard distances */
  71 #define ED_BORDER_SIZE                  3
  72 #define ED_BORDER2_SIZE                 5
  73 #define ED_GADGET_DISTANCE              2
  74
  75 /* values for the setting windows */
  76 #define ED_SETTINGS_XSTART              (3 * MINI_TILEX / 2)
  77 #define ED_SETTINGS_YSTART              (MINI_TILEY * 10)
  78
  79 #define ED_XOFFSET_CHECKBOX             (ED_CHECKBUTTON_XSIZE + \
  80                                          2 * ED_GADGET_DISTANCE)
  81
  82 #define ED_SETTINGS_XOFFSET             ED_XOFFSET_CHECKBOX
  83 #define ED_SETTINGS_YOFFSET             (3 * MINI_TILEY / 2)
  84
  85 #define ED_SETTINGS_XPOS(n)             (ED_SETTINGS_XSTART + \
  86                                          n * ED_SETTINGS_XOFFSET)
  87 #define ED_SETTINGS_YPOS(n)             (ED_SETTINGS_YSTART + \
  88                                          n * ED_SETTINGS_YOFFSET)
  89
  90 #define ED_SETTINGS1_YPOS               MINI_TILEY
  91 #define ED_SETTINGS2_XPOS               MINI_TILEX
  92 #define ED_SETTINGS2_YPOS               (ED_SETTINGS1_YPOS + 12 * TILEY - 2)
  93
  94 /* values for counter gadgets */
  95 #define ED_COUNT_PUSH_DELAY_RND_XPOS    (ED_SETTINGS_XPOS(1) + 16 * MINI_TILEX)
  96 #define ED_COUNT_MOVE_DELAY_RND_XPOS    ED_COUNT_PUSH_DELAY_RND_XPOS
  97 #define ED_COUNT_CHANGE_DELAY_RND_XPOS  (ED_SETTINGS_XPOS(1) + 13 * MINI_TILEX)
  98
  99 #define ED_COUNTER_YSTART               (ED_SETTINGS1_YPOS + 2 * TILEY)
 100 #define ED_COUNTER_YDISTANCE            (3 * MINI_TILEY)
 101 #define ED_COUNTER_YPOS(n)              (ED_COUNTER_YSTART + \
 102                                          n * ED_COUNTER_YDISTANCE)
 103 #define ED_COUNTER2_YPOS(n)             (ED_COUNTER_YSTART + \
 104                                          n * ED_COUNTER_YDISTANCE - 2)
 105
 106 /* values for element content drawing areas */
 107 #define ED_AREA_ELEM_CONTENT_XPOS       ( 2 * MINI_TILEX)
 108 #define ED_AREA_ELEM_CONTENT_YPOS       (22 * MINI_TILEY)
 109
 110 #define ED_AREA_ELEM_CONTENT2_XPOS      (20 * MINI_TILEX)
 111 #define ED_AREA_ELEM_CONTENT2_YPOS      (ED_SETTINGS_YPOS(2) + \
 112                                          ED_GADGET_DISTANCE)
 113
 114 #define ED_AREA_ELEM_CONTENT3_XPOS      (24 * MINI_TILEX)
 115 #define ED_AREA_ELEM_CONTENT3_YPOS      (ED_SETTINGS_YPOS(1) + \
 116                                          ED_GADGET_DISTANCE)
 117
 118 #if 1
 119 #define ED_AREA_ELEM_CONTENT4_XPOS      (29 * MINI_TILEX)
 120 #define ED_AREA_ELEM_CONTENT4_YPOS      (ED_SETTINGS_YPOS(3) + \
 121                                          ED_GADGET_DISTANCE - MINI_TILEY)
 122 #else
 123 #define ED_AREA_ELEM_CONTENT4_XPOS      (17 * MINI_TILEX)
 124 #define ED_AREA_ELEM_CONTENT4_YPOS      (ED_SETTINGS_YPOS(11) + \
 125                                          ED_GADGET_DISTANCE - MINI_TILEY)
 126 #endif
 127
 128 /* values for random placement background drawing area */
 129 #define ED_AREA_RANDOM_BACKGROUND_XPOS  (29 * MINI_TILEX)
 130 #define ED_AREA_RANDOM_BACKGROUND_YPOS  (31 * MINI_TILEY)
 131
 132 /* values for scrolling gadgets for drawing area */
 133 #define ED_SCROLLBUTTON_XPOS            24
 134 #define ED_SCROLLBUTTON_YPOS            0
 135 #define ED_SCROLLBAR_XPOS               24
 136 #define ED_SCROLLBAR_YPOS               64
 137
 138 #define ED_SCROLLBUTTON_XSIZE           16
 139 #define ED_SCROLLBUTTON_YSIZE           16
 140
 141 #define ED_SCROLL_UP_XPOS               (SXSIZE - ED_SCROLLBUTTON_XSIZE)
 142 #define ED_SCROLL_UP_YPOS               (0)
 143 #define ED_SCROLL_DOWN_XPOS             ED_SCROLL_UP_XPOS
 144 #define ED_SCROLL_DOWN_YPOS             (SYSIZE - 3 * ED_SCROLLBUTTON_YSIZE)
 145 #define ED_SCROLL_LEFT_XPOS             (0)
 146 #define ED_SCROLL_LEFT_YPOS             (SYSIZE - 2 * ED_SCROLLBUTTON_YSIZE)
 147 #define ED_SCROLL_RIGHT_XPOS            (SXSIZE - 2 * ED_SCROLLBUTTON_XSIZE)
 148 #define ED_SCROLL_RIGHT_YPOS            ED_SCROLL_LEFT_YPOS
 149 #define ED_SCROLL_HORIZONTAL_XPOS (ED_SCROLL_LEFT_XPOS + ED_SCROLLBUTTON_XSIZE)
 150 #define ED_SCROLL_HORIZONTAL_YPOS       ED_SCROLL_LEFT_YPOS
 151 #define ED_SCROLL_HORIZONTAL_XSIZE      (SXSIZE - 3 * ED_SCROLLBUTTON_XSIZE)
 152 #define ED_SCROLL_HORIZONTAL_YSIZE      ED_SCROLLBUTTON_YSIZE
 153 #define ED_SCROLL_VERTICAL_XPOS         ED_SCROLL_UP_XPOS
 154 #define ED_SCROLL_VERTICAL_YPOS   (ED_SCROLL_UP_YPOS + ED_SCROLLBUTTON_YSIZE)
 155 #define ED_SCROLL_VERTICAL_XSIZE        ED_SCROLLBUTTON_XSIZE
 156 #define ED_SCROLL_VERTICAL_YSIZE        (SYSIZE - 4 * ED_SCROLLBUTTON_YSIZE)
 157
 158 /* values for scrolling gadgets for element list */
 159 #define ED_SCROLLBUTTON2_XPOS           50
 160 #define ED_SCROLLBUTTON2_YPOS           0
 161 #define ED_SCROLLBAR2_XPOS              50
 162 #define ED_SCROLLBAR2_YPOS              20
 163
 164 #define ED_SCROLLBUTTON2_XSIZE          10
 165 #define ED_SCROLLBUTTON2_YSIZE          10
 166
 167 #define ED_SCROLL2_UP_XPOS              85
 168 #define ED_SCROLL2_UP_YPOS              30
 169 #define ED_SCROLL2_DOWN_XPOS            ED_SCROLL2_UP_XPOS
 170 #define ED_SCROLL2_DOWN_YPOS            (ED_SCROLL2_UP_YPOS + \
 171                                          ED_ELEMENTLIST_BUTTONS_VERT * \
 172                                          ED_ELEMENTLIST_YSIZE - \
 173                                          ED_SCROLLBUTTON2_YSIZE)
 174 #define ED_SCROLL2_VERTICAL_XPOS        ED_SCROLL2_UP_XPOS
 175 #define ED_SCROLL2_VERTICAL_YPOS        (ED_SCROLL2_UP_YPOS + \
 176                                          ED_SCROLLBUTTON2_YSIZE)
 177 #define ED_SCROLL2_VERTICAL_XSIZE       ED_SCROLLBUTTON2_XSIZE
 178 #define ED_SCROLL2_VERTICAL_YSIZE       (ED_ELEMENTLIST_BUTTONS_VERT * \
 179                                          ED_ELEMENTLIST_YSIZE - \
 180                                          2 * ED_SCROLLBUTTON2_YSIZE)
 181
 182 /* values for checkbutton gadgets */
 183 #define ED_CHECKBUTTON_XSIZE            ED_BUTTON_COUNT_XSIZE
 184 #define ED_CHECKBUTTON_YSIZE            ED_BUTTON_COUNT_YSIZE
 185 #define ED_CHECKBUTTON_UNCHECKED_XPOS   ED_BUTTON_MINUS_XPOS
 186 #define ED_CHECKBUTTON_CHECKED_XPOS     ED_BUTTON_PLUS_XPOS
 187 #define ED_CHECKBUTTON_YPOS             (ED_BUTTON_MINUS_YPOS + 22)
 188 #define ED_RADIOBUTTON_YPOS             (ED_BUTTON_MINUS_YPOS + 44)
 189 #define ED_STICKYBUTTON_YPOS            (ED_BUTTON_MINUS_YPOS + 66)
 190
 191 /* some positions in the editor control window */
 192 #define ED_BUTTON_ELEM_XPOS             6
 193 #define ED_BUTTON_ELEM_YPOS             30
 194 #define ED_BUTTON_ELEM_XSIZE            22
 195 #define ED_BUTTON_ELEM_YSIZE            22
 196
 197 /* some values for text input, selectbox and counter gadgets */
 198 #define ED_BUTTON_COUNT_YPOS            60
 199 #define ED_BUTTON_COUNT_XSIZE           20
 200 #define ED_BUTTON_COUNT_YSIZE           20
 201 #define ED_WIN_COUNT_XPOS               (2 + ED_BUTTON_COUNT_XSIZE + 2)
 202 #define ED_WIN_COUNT_YPOS               ED_BUTTON_COUNT_YPOS
 203 #define ED_WIN_COUNT_XSIZE              52
 204 #define ED_WIN_COUNT_YSIZE              ED_BUTTON_COUNT_YSIZE
 205 #define ED_WIN_COUNT2_XPOS              27
 206 #define ED_WIN_COUNT2_YPOS              3
 207 #define ED_WIN_COUNT2_XSIZE             46
 208 #define ED_WIN_COUNT2_YSIZE             ED_BUTTON_COUNT_YSIZE
 209
 210 #define ED_BUTTON_MINUS_XPOS            2
 211 #define ED_BUTTON_MINUS_YPOS            ED_BUTTON_COUNT_YPOS
 212 #define ED_BUTTON_MINUS_XSIZE           ED_BUTTON_COUNT_XSIZE
 213 #define ED_BUTTON_MINUS_YSIZE           ED_BUTTON_COUNT_YSIZE
 214 #define ED_BUTTON_PLUS_XPOS             (ED_WIN_COUNT_XPOS + \
 215                                          ED_WIN_COUNT_XSIZE + 2)
 216 #define ED_BUTTON_PLUS_YPOS             ED_BUTTON_COUNT_YPOS
 217 #define ED_BUTTON_PLUS_XSIZE            ED_BUTTON_COUNT_XSIZE
 218 #define ED_BUTTON_PLUS_YSIZE            ED_BUTTON_COUNT_YSIZE
 219
 220 #define ED_SELECTBOX_XPOS               ED_WIN_COUNT_XPOS
 221 #define ED_SELECTBOX_YPOS               (ED_WIN_COUNT_YPOS + \
 222                                          2 + ED_WIN_COUNT_YSIZE)
 223 #define ED_SELECTBOX_XSIZE              ED_WIN_COUNT_XSIZE
 224 #define ED_SELECTBOX_YSIZE              ED_WIN_COUNT_YSIZE
 225
 226 #define ED_TEXTBUTTON_XPOS              ED_WIN_COUNT_XPOS
 227 #define ED_TEXTBUTTON_YPOS              (ED_WIN_COUNT_YPOS + \
 228                                          4 * (2 + ED_WIN_COUNT_YSIZE))
 229 #define ED_TEXTBUTTON_INACTIVE_YPOS     ED_TEXTBUTTON_YPOS
 230
 231 #define ED_TEXTBUTTON_TAB_XPOS          ED_WIN_COUNT_XPOS
 232 #define ED_TEXTBUTTON_TAB_YPOS          (ED_WIN_COUNT_YPOS + \
 233                                          2 * (2 + ED_WIN_COUNT_YSIZE))
 234 #define ED_TEXTBUTTON_TAB_INACTIVE_YPOS (ED_WIN_COUNT_YPOS + \
 235                                          3 * (2 + ED_WIN_COUNT_YSIZE))
 236
 237 #define ED_TEXTBUTTON_XSIZE             ED_WIN_COUNT_XSIZE
 238 #define ED_TEXTBUTTON_YSIZE             ED_WIN_COUNT_YSIZE
 239
 240 /* values for ClearEditorGadgetInfoText() and HandleGadgetInfoText() */
 241 #define INFOTEXT_XPOS                   SX
 242 #define INFOTEXT_YPOS                   (SY + SYSIZE - MINI_TILEX + 2)
 243 #define INFOTEXT_XSIZE                  SXSIZE
 244 #define INFOTEXT_YSIZE                  MINI_TILEX
 245
 246
 247 /*
 248   -----------------------------------------------------------------------------
 249   editor gadget definitions
 250   -----------------------------------------------------------------------------
 251 */
 252
 253 /* drawing toolbox buttons */
 254 #define GADGET_ID_NONE                  -1
 255 #define GADGET_ID_TOOLBOX_FIRST         0
 256
 257 #define GADGET_ID_SINGLE_ITEMS          (GADGET_ID_TOOLBOX_FIRST + 0)
 258 #define GADGET_ID_CONNECTED_ITEMS       (GADGET_ID_TOOLBOX_FIRST + 1)
 259 #define GADGET_ID_LINE                  (GADGET_ID_TOOLBOX_FIRST + 2)
 260 #define GADGET_ID_ARC                   (GADGET_ID_TOOLBOX_FIRST + 3)
 261 #define GADGET_ID_RECTANGLE             (GADGET_ID_TOOLBOX_FIRST + 4)
 262 #define GADGET_ID_FILLED_BOX            (GADGET_ID_TOOLBOX_FIRST + 5)
 263 #define GADGET_ID_WRAP_UP               (GADGET_ID_TOOLBOX_FIRST + 6)
 264 #define GADGET_ID_TEXT                  (GADGET_ID_TOOLBOX_FIRST + 7)
 265 #define GADGET_ID_FLOOD_FILL            (GADGET_ID_TOOLBOX_FIRST + 8)
 266 #define GADGET_ID_WRAP_LEFT             (GADGET_ID_TOOLBOX_FIRST + 9)
 267 #define GADGET_ID_PROPERTIES            (GADGET_ID_TOOLBOX_FIRST + 10)
 268 #define GADGET_ID_WRAP_RIGHT            (GADGET_ID_TOOLBOX_FIRST + 11)
 269 #define GADGET_ID_RANDOM_PLACEMENT      (GADGET_ID_TOOLBOX_FIRST + 12)
 270 #define GADGET_ID_GRAB_BRUSH            (GADGET_ID_TOOLBOX_FIRST + 13)
 271 #define GADGET_ID_WRAP_DOWN             (GADGET_ID_TOOLBOX_FIRST + 14)
 272 #define GADGET_ID_PICK_ELEMENT          (GADGET_ID_TOOLBOX_FIRST + 15)
 273 #define GADGET_ID_UNDO                  (GADGET_ID_TOOLBOX_FIRST + 16)
 274 #define GADGET_ID_INFO                  (GADGET_ID_TOOLBOX_FIRST + 17)
 275 #define GADGET_ID_SAVE                  (GADGET_ID_TOOLBOX_FIRST + 18)
 276 #define GADGET_ID_CLEAR                 (GADGET_ID_TOOLBOX_FIRST + 19)
 277 #define GADGET_ID_TEST                  (GADGET_ID_TOOLBOX_FIRST + 20)
 278 #define GADGET_ID_EXIT                  (GADGET_ID_TOOLBOX_FIRST + 21)
 279
 280 /* counter button identifiers */
 281 #define GADGET_ID_COUNTER_FIRST         (GADGET_ID_TOOLBOX_FIRST + 22)
 282
 283 #define GADGET_ID_SELECT_LEVEL_DOWN     (GADGET_ID_COUNTER_FIRST + 0)
 284 #define GADGET_ID_SELECT_LEVEL_TEXT     (GADGET_ID_COUNTER_FIRST + 1)
 285 #define GADGET_ID_SELECT_LEVEL_UP       (GADGET_ID_COUNTER_FIRST + 2)
 286 #define GADGET_ID_LEVEL_XSIZE_DOWN      (GADGET_ID_COUNTER_FIRST + 3)
 287 #define GADGET_ID_LEVEL_XSIZE_TEXT      (GADGET_ID_COUNTER_FIRST + 4)
 288 #define GADGET_ID_LEVEL_XSIZE_UP        (GADGET_ID_COUNTER_FIRST + 5)
 289 #define GADGET_ID_LEVEL_YSIZE_DOWN      (GADGET_ID_COUNTER_FIRST + 6)
 290 #define GADGET_ID_LEVEL_YSIZE_TEXT      (GADGET_ID_COUNTER_FIRST + 7)
 291 #define GADGET_ID_LEVEL_YSIZE_UP        (GADGET_ID_COUNTER_FIRST + 8)
 292 #define GADGET_ID_LEVEL_RANDOM_DOWN     (GADGET_ID_COUNTER_FIRST + 9)
 293 #define GADGET_ID_LEVEL_RANDOM_TEXT     (GADGET_ID_COUNTER_FIRST + 10)
 294 #define GADGET_ID_LEVEL_RANDOM_UP       (GADGET_ID_COUNTER_FIRST + 11)
 295 #define GADGET_ID_LEVEL_COLLECT_DOWN    (GADGET_ID_COUNTER_FIRST + 12)
 296 #define GADGET_ID_LEVEL_COLLECT_TEXT    (GADGET_ID_COUNTER_FIRST + 13)
 297 #define GADGET_ID_LEVEL_COLLECT_UP      (GADGET_ID_COUNTER_FIRST + 14)
 298 #define GADGET_ID_LEVEL_TIMELIMIT_DOWN  (GADGET_ID_COUNTER_FIRST + 15)
 299 #define GADGET_ID_LEVEL_TIMELIMIT_TEXT  (GADGET_ID_COUNTER_FIRST + 16)
 300 #define GADGET_ID_LEVEL_TIMELIMIT_UP    (GADGET_ID_COUNTER_FIRST + 17)
 301 #define GADGET_ID_LEVEL_TIMESCORE_DOWN  (GADGET_ID_COUNTER_FIRST + 18)
 302 #define GADGET_ID_LEVEL_TIMESCORE_TEXT  (GADGET_ID_COUNTER_FIRST + 19)
 303 #define GADGET_ID_LEVEL_TIMESCORE_UP    (GADGET_ID_COUNTER_FIRST + 20)
 304 #define GADGET_ID_ELEMENT_SCORE_DOWN    (GADGET_ID_COUNTER_FIRST + 21)
 305 #define GADGET_ID_ELEMENT_SCORE_TEXT    (GADGET_ID_COUNTER_FIRST + 22)
 306 #define GADGET_ID_ELEMENT_SCORE_UP      (GADGET_ID_COUNTER_FIRST + 23)
 307 #define GADGET_ID_ELEMENT_CONTENT_DOWN  (GADGET_ID_COUNTER_FIRST + 24)
 308 #define GADGET_ID_ELEMENT_CONTENT_TEXT  (GADGET_ID_COUNTER_FIRST + 25)
 309 #define GADGET_ID_ELEMENT_CONTENT_UP    (GADGET_ID_COUNTER_FIRST + 26)
 310 #define GADGET_ID_CUSTOM_SCORE_DOWN     (GADGET_ID_COUNTER_FIRST + 27)
 311 #define GADGET_ID_CUSTOM_SCORE_TEXT     (GADGET_ID_COUNTER_FIRST + 28)
 312 #define GADGET_ID_CUSTOM_SCORE_UP       (GADGET_ID_COUNTER_FIRST + 29)
 313 #define GADGET_ID_PUSH_DELAY_FIX_DOWN   (GADGET_ID_COUNTER_FIRST + 30)
 314 #define GADGET_ID_PUSH_DELAY_FIX_TEXT   (GADGET_ID_COUNTER_FIRST + 31)
 315 #define GADGET_ID_PUSH_DELAY_FIX_UP     (GADGET_ID_COUNTER_FIRST + 32)
 316 #define GADGET_ID_PUSH_DELAY_RND_DOWN   (GADGET_ID_COUNTER_FIRST + 33)
 317 #define GADGET_ID_PUSH_DELAY_RND_TEXT   (GADGET_ID_COUNTER_FIRST + 34)
 318 #define GADGET_ID_PUSH_DELAY_RND_UP     (GADGET_ID_COUNTER_FIRST + 35)
 319 #define GADGET_ID_MOVE_DELAY_FIX_DOWN   (GADGET_ID_COUNTER_FIRST + 36)
 320 #define GADGET_ID_MOVE_DELAY_FIX_TEXT   (GADGET_ID_COUNTER_FIRST + 37)
 321 #define GADGET_ID_MOVE_DELAY_FIX_UP     (GADGET_ID_COUNTER_FIRST + 38)
 322 #define GADGET_ID_MOVE_DELAY_RND_DOWN   (GADGET_ID_COUNTER_FIRST + 39)
 323 #define GADGET_ID_MOVE_DELAY_RND_TEXT   (GADGET_ID_COUNTER_FIRST + 40)
 324 #define GADGET_ID_MOVE_DELAY_RND_UP     (GADGET_ID_COUNTER_FIRST + 41)
 325 #define GADGET_ID_CHANGE_DELAY_FIX_DOWN (GADGET_ID_COUNTER_FIRST + 42)
 326 #define GADGET_ID_CHANGE_DELAY_FIX_TEXT (GADGET_ID_COUNTER_FIRST + 43)
 327 #define GADGET_ID_CHANGE_DELAY_FIX_UP   (GADGET_ID_COUNTER_FIRST + 44)
 328 #define GADGET_ID_CHANGE_DELAY_RND_DOWN (GADGET_ID_COUNTER_FIRST + 45)
 329 #define GADGET_ID_CHANGE_DELAY_RND_TEXT (GADGET_ID_COUNTER_FIRST + 46)
 330 #define GADGET_ID_CHANGE_DELAY_RND_UP   (GADGET_ID_COUNTER_FIRST + 47)
 331
 332 /* drawing area identifiers */
 333 #define GADGET_ID_DRAWING_AREA_FIRST    (GADGET_ID_COUNTER_FIRST + 48)
 334
 335 #define GADGET_ID_DRAWING_LEVEL         (GADGET_ID_DRAWING_AREA_FIRST + 0)
 336 #define GADGET_ID_ELEMENT_CONTENT_0     (GADGET_ID_DRAWING_AREA_FIRST + 1)
 337 #define GADGET_ID_ELEMENT_CONTENT_1     (GADGET_ID_DRAWING_AREA_FIRST + 2)
 338 #define GADGET_ID_ELEMENT_CONTENT_2     (GADGET_ID_DRAWING_AREA_FIRST + 3)
 339 #define GADGET_ID_ELEMENT_CONTENT_3     (GADGET_ID_DRAWING_AREA_FIRST + 4)
 340 #define GADGET_ID_ELEMENT_CONTENT_4     (GADGET_ID_DRAWING_AREA_FIRST + 5)
 341 #define GADGET_ID_ELEMENT_CONTENT_5     (GADGET_ID_DRAWING_AREA_FIRST + 6)
 342 #define GADGET_ID_ELEMENT_CONTENT_6     (GADGET_ID_DRAWING_AREA_FIRST + 7)
 343 #define GADGET_ID_ELEMENT_CONTENT_7     (GADGET_ID_DRAWING_AREA_FIRST + 8)
 344 #define GADGET_ID_AMOEBA_CONTENT        (GADGET_ID_DRAWING_AREA_FIRST + 9)
 345 #define GADGET_ID_CUSTOM_GRAPHIC        (GADGET_ID_DRAWING_AREA_FIRST + 10)
 346 #define GADGET_ID_CUSTOM_CONTENT        (GADGET_ID_DRAWING_AREA_FIRST + 11)
 347 #define GADGET_ID_CUSTOM_CHANGED        (GADGET_ID_DRAWING_AREA_FIRST + 12)
 348 #define GADGET_ID_RANDOM_BACKGROUND     (GADGET_ID_DRAWING_AREA_FIRST + 13)
 349
 350 /* text input identifiers */
 351 #define GADGET_ID_TEXT_INPUT_FIRST      (GADGET_ID_DRAWING_AREA_FIRST + 14)
 352
 353 #define GADGET_ID_LEVEL_NAME            (GADGET_ID_TEXT_INPUT_FIRST + 0)
 354 #define GADGET_ID_LEVEL_AUTHOR          (GADGET_ID_TEXT_INPUT_FIRST + 1)
 355
 356 /* selectbox identifiers */
 357 #define GADGET_ID_SELECTBOX_FIRST       (GADGET_ID_TEXT_INPUT_FIRST + 2)
 358
 359 #define GADGET_ID_CUSTOM_WALK_TO_ACTION (GADGET_ID_SELECTBOX_FIRST + 0)
 360 #define GADGET_ID_CUSTOM_CONSISTENCY    (GADGET_ID_SELECTBOX_FIRST + 1)
 361 #define GADGET_ID_CUSTOM_DEADLINESS     (GADGET_ID_SELECTBOX_FIRST + 2)
 362 #define GADGET_ID_CUSTOM_MOVE_PATTERN   (GADGET_ID_SELECTBOX_FIRST + 3)
 363 #define GADGET_ID_CUSTOM_MOVE_DIRECTION (GADGET_ID_SELECTBOX_FIRST + 4)
 364 #define GADGET_ID_CUSTOM_WALKABLE_LAYER (GADGET_ID_SELECTBOX_FIRST + 5)
 365 #define GADGET_ID_CHANGE_TIME_UNITS     (GADGET_ID_SELECTBOX_FIRST + 6)
 366 #define GADGET_ID_CHANGE_CAUSE          (GADGET_ID_SELECTBOX_FIRST + 7)
 367
 368 /* textbutton identifiers */
 369 #define GADGET_ID_TEXTBUTTON_FIRST      (GADGET_ID_SELECTBOX_FIRST + 8)
 370
 371 #define GADGET_ID_PROPERTIES_INFO       (GADGET_ID_TEXTBUTTON_FIRST + 0)
 372 #define GADGET_ID_PROPERTIES_CONFIG     (GADGET_ID_TEXTBUTTON_FIRST + 1)
 373 #define GADGET_ID_PROPERTIES_ADVANCED   (GADGET_ID_TEXTBUTTON_FIRST + 2)
 374 #define GADGET_ID_SAVE_AS_TEMPLATE      (GADGET_ID_TEXTBUTTON_FIRST + 3)
 375
 376 /* gadgets for scrolling of drawing area */
 377 #define GADGET_ID_SCROLLING_FIRST       (GADGET_ID_TEXTBUTTON_FIRST + 4)
 378
 379 #define GADGET_ID_SCROLL_UP             (GADGET_ID_SCROLLING_FIRST + 0)
 380 #define GADGET_ID_SCROLL_DOWN           (GADGET_ID_SCROLLING_FIRST + 1)
 381 #define GADGET_ID_SCROLL_LEFT           (GADGET_ID_SCROLLING_FIRST + 2)
 382 #define GADGET_ID_SCROLL_RIGHT          (GADGET_ID_SCROLLING_FIRST + 3)
 383 #define GADGET_ID_SCROLL_HORIZONTAL     (GADGET_ID_SCROLLING_FIRST + 4)
 384 #define GADGET_ID_SCROLL_VERTICAL       (GADGET_ID_SCROLLING_FIRST + 5)
 385
 386 /* gadgets for scrolling element list */
 387 #define GADGET_ID_SCROLLING_LIST_FIRST  (GADGET_ID_SCROLLING_FIRST + 6)
 388
 389 #define GADGET_ID_SCROLL_LIST_UP        (GADGET_ID_SCROLLING_LIST_FIRST + 0)
 390 #define GADGET_ID_SCROLL_LIST_DOWN      (GADGET_ID_SCROLLING_LIST_FIRST + 1)
 391 #define GADGET_ID_SCROLL_LIST_VERTICAL  (GADGET_ID_SCROLLING_LIST_FIRST + 2)
 392
 393 /* checkbuttons for level/element properties */
 394 #define GADGET_ID_CHECKBUTTON_FIRST     (GADGET_ID_SCROLLING_LIST_FIRST + 3)
 395
 396 #define GADGET_ID_RANDOM_PERCENTAGE     (GADGET_ID_CHECKBUTTON_FIRST + 0)
 397 #define GADGET_ID_RANDOM_QUANTITY       (GADGET_ID_CHECKBUTTON_FIRST + 1)
 398 #define GADGET_ID_RANDOM_RESTRICTED     (GADGET_ID_CHECKBUTTON_FIRST + 2)
 399 #define GADGET_ID_DOUBLE_SPEED          (GADGET_ID_CHECKBUTTON_FIRST + 3)
 400 #define GADGET_ID_GRAVITY               (GADGET_ID_CHECKBUTTON_FIRST + 4)
 401 #define GADGET_ID_STICK_ELEMENT         (GADGET_ID_CHECKBUTTON_FIRST + 5)
 402 #define GADGET_ID_EM_SLIPPERY_GEMS      (GADGET_ID_CHECKBUTTON_FIRST + 6)
 403 #define GADGET_ID_CUSTOM_EXPLODE_RESULT (GADGET_ID_CHECKBUTTON_FIRST + 7)
 404 #define GADGET_ID_CUSTOM_WALK_TO_OBJECT (GADGET_ID_CHECKBUTTON_FIRST + 8)
 405 #define GADGET_ID_CUSTOM_DEADLY         (GADGET_ID_CHECKBUTTON_FIRST + 9)
 406 #define GADGET_ID_CUSTOM_CAN_MOVE       (GADGET_ID_CHECKBUTTON_FIRST + 10)
 407 #define GADGET_ID_CUSTOM_CAN_FALL       (GADGET_ID_CHECKBUTTON_FIRST + 11)
 408 #define GADGET_ID_CUSTOM_CAN_SMASH      (GADGET_ID_CHECKBUTTON_FIRST + 12)
 409 #define GADGET_ID_CUSTOM_SLIPPERY       (GADGET_ID_CHECKBUTTON_FIRST + 13)
 410 #define GADGET_ID_CUSTOM_WALKABLE       (GADGET_ID_CHECKBUTTON_FIRST + 14)
 411 #define GADGET_ID_CUSTOM_USE_GRAPHIC    (GADGET_ID_CHECKBUTTON_FIRST + 15)
 412 #define GADGET_ID_CUSTOM_USE_TEMPLATE   (GADGET_ID_CHECKBUTTON_FIRST + 16)
 413 #define GADGET_ID_CUSTOM_CHANGEABLE     (GADGET_ID_CHECKBUTTON_FIRST + 17)
 414 #define GADGET_ID_CHANGE_DELAY          (GADGET_ID_CHECKBUTTON_FIRST + 18)
 415
 416 /* gadgets for buttons in element list */
 417 #define GADGET_ID_ELEMENTLIST_FIRST     (GADGET_ID_CHECKBUTTON_FIRST + 19)
 418 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 419                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 420
 421 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 422
 423 /* radio button numbers */
 424 #define RADIO_NR_NONE                   0
 425 #define RADIO_NR_DRAWING_TOOLBOX        1
 426 #define RADIO_NR_RANDOM_ELEMENTS        2
 427
 428 /* values for counter gadgets */
 429 #define ED_COUNTER_ID_SELECT_LEVEL      0
 430 #define ED_COUNTER_ID_LEVEL_XSIZE       1
 431 #define ED_COUNTER_ID_LEVEL_YSIZE       2
 432 #define ED_COUNTER_ID_LEVEL_COLLECT     3
 433 #define ED_COUNTER_ID_LEVEL_TIMELIMIT   4
 434 #define ED_COUNTER_ID_LEVEL_TIMESCORE   5
 435 #define ED_COUNTER_ID_LEVEL_RANDOM      6
 436 #define ED_COUNTER_ID_ELEMENT_SCORE     7
 437 #define ED_COUNTER_ID_ELEMENT_CONTENT   8
 438 #define ED_COUNTER_ID_CUSTOM_SCORE      9
 439 #define ED_COUNTER_ID_PUSH_DELAY_FIX    10
 440 #define ED_COUNTER_ID_PUSH_DELAY_RND    11
 441 #define ED_COUNTER_ID_MOVE_DELAY_FIX    12
 442 #define ED_COUNTER_ID_MOVE_DELAY_RND    13
 443 #define ED_COUNTER_ID_CHANGE_DELAY_FIX  14
 444 #define ED_COUNTER_ID_CHANGE_DELAY_RND  15
 445
 446 #define ED_NUM_COUNTERBUTTONS           16
 447
 448 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 449 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM
 450
 451 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM_SCORE
 452 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_MOVE_DELAY_RND
 453
 454 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 455 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_DELAY_RND
 456
 457 /* values for scrollbutton gadgets */
 458 #define ED_SCROLLBUTTON_ID_AREA_UP      0
 459 #define ED_SCROLLBUTTON_ID_AREA_DOWN    1
 460 #define ED_SCROLLBUTTON_ID_AREA_LEFT    2
 461 #define ED_SCROLLBUTTON_ID_AREA_RIGHT   3
 462 #define ED_SCROLLBUTTON_ID_LIST_UP      4
 463 #define ED_SCROLLBUTTON_ID_LIST_DOWN    5
 464
 465 #define ED_NUM_SCROLLBUTTONS            6
 466
 467 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 468 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 469
 470 /* values for scrollbar gadgets */
 471 #define ED_SCROLLBAR_ID_AREA_HORIZONTAL 0
 472 #define ED_SCROLLBAR_ID_AREA_VERTICAL   1
 473 #define ED_SCROLLBAR_ID_LIST_VERTICAL   2
 474
 475 #define ED_NUM_SCROLLBARS               3
 476
 477 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 478 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 479
 480 /* values for text input gadgets */
 481 #define ED_TEXTINPUT_ID_LEVEL_NAME      0
 482 #define ED_TEXTINPUT_ID_LEVEL_AUTHOR    1
 483
 484 #define ED_NUM_TEXTINPUT                2
 485
 486 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 487 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 488
 489 /* values for selectbox gadgets */
 490 #define ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION   0
 491 #define ED_SELECTBOX_ID_CUSTOM_CONSISTENCY      1
 492 #define ED_SELECTBOX_ID_CUSTOM_DEADLINESS       2
 493 #define ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN     3
 494 #define ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION   4
 495 #define ED_SELECTBOX_ID_CUSTOM_WALKABLE_LAYER   5
 496 #define ED_SELECTBOX_ID_CHANGE_TIME_UNITS       6
 497 #define ED_SELECTBOX_ID_CHANGE_CAUSE            7
 498
 499 #define ED_NUM_SELECTBOX                        8
 500
 501 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 502 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM_WALKABLE_LAYER
 503
 504 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 505 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_CHANGE_CAUSE
 506
 507 /* values for textbutton gadgets */
 508 #define ED_TEXTBUTTON_ID_PROPERTIES_INFO        0
 509 #define ED_TEXTBUTTON_ID_PROPERTIES_CONFIG      1
 510 #define ED_TEXTBUTTON_ID_PROPERTIES_ADVANCED    2
 511 #define ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE       3
 512
 513 #define ED_NUM_TEXTBUTTON                       4
 514
 515 /* values for checkbutton gadgets */
 516 #define ED_CHECKBUTTON_ID_DOUBLE_SPEED          0
 517 #define ED_CHECKBUTTON_ID_GRAVITY               1
 518 #define ED_CHECKBUTTON_ID_RANDOM_RESTRICTED     2
 519 #define ED_CHECKBUTTON_ID_STICK_ELEMENT         3
 520 #define ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS      4
 521 #define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_RESULT 5
 522 #define ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT 6
 523 #define ED_CHECKBUTTON_ID_CUSTOM_DEADLY         7
 524 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE       8
 525 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL       9
 526 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH      10
 527 #define ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY       11
 528 #define ED_CHECKBUTTON_ID_CUSTOM_WALKABLE       12
 529 #define ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC    13
 530 #define ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE   14
 531 #define ED_CHECKBUTTON_ID_CUSTOM_CHANGEABLE     15
 532 #define ED_CHECKBUTTON_ID_CHANGE_DELAY          16
 533
 534 #define ED_NUM_CHECKBUTTONS                     17
 535
 536 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_DOUBLE_SPEED
 537 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
 538
 539 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_RESULT
 540 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM_WALKABLE
 541
 542 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
 543 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_DELAY
 544
 545 /* values for radiobutton gadgets */
 546 #define ED_RADIOBUTTON_ID_PERCENTAGE    0
 547 #define ED_RADIOBUTTON_ID_QUANTITY      1
 548
 549 #define ED_NUM_RADIOBUTTONS             2
 550
 551 #define ED_RADIOBUTTON_ID_LEVEL_FIRST   ED_RADIOBUTTON_ID_PERCENTAGE
 552 #define ED_RADIOBUTTON_ID_LEVEL_LAST    ED_RADIOBUTTON_ID_QUANTITY
 553
 554
 555 /*
 556   -----------------------------------------------------------------------------
 557   some internally used definitions
 558   -----------------------------------------------------------------------------
 559 */
 560
 561 /* values for CopyLevelToUndoBuffer() */
 562 #define UNDO_IMMEDIATE                  0
 563 #define UNDO_ACCUMULATE                 1
 564
 565 /* values for scrollbars */
 566 #define ED_SCROLL_NO                    0
 567 #define ED_SCROLL_LEFT                  1
 568 #define ED_SCROLL_RIGHT                 2
 569 #define ED_SCROLL_UP                    4
 570 #define ED_SCROLL_DOWN                  8
 571
 572 /* screens in the level editor */
 573 #define ED_MODE_DRAWING                 0
 574 #define ED_MODE_INFO                    1
 575 #define ED_MODE_PROPERTIES              2
 576
 577 /* sub-screens in the element properties section */
 578 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
 579 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
 580 #define ED_MODE_PROPERTIES_ADVANCED     ED_TEXTBUTTON_ID_PROPERTIES_ADVANCED
 581
 582 /* how many steps can be cancelled */
 583 #define NUM_UNDO_STEPS                  (10 + 1)
 584
 585 /* values for elements with score */
 586 #define MIN_SCORE                       0
 587 #define MAX_SCORE                       255
 588
 589 /* values for random placement */
 590 #define RANDOM_USE_PERCENTAGE           0
 591 #define RANDOM_USE_QUANTITY             1
 592
 593 /* maximal size of level editor drawing area */
 594 #define MAX_ED_FIELDX           (2 * SCR_FIELDX)
 595 #define MAX_ED_FIELDY           (2 * SCR_FIELDY - 1)
 596
 597
 598 /*
 599   -----------------------------------------------------------------------------
 600   some internally used data structure definitions
 601   -----------------------------------------------------------------------------
 602 */
 603
 604 static struct
 605 {
 606   char shortcut;
 607   char *text;
 608 } control_info[ED_NUM_CTRL_BUTTONS] =
 609 {
 610   { 's',        "draw single items"             },
 611   { 'd',        "draw connected items"          },
 612   { 'l',        "draw lines"                    },
 613   { 'a',        "draw arcs"                     },
 614   { 'r',        "draw outline rectangles"       },
 615   { 'R',        "draw filled rectangles"        },
 616   { '\0',       "wrap (rotate) level up"        },
 617   { 't',        "enter text elements"           },
 618   { 'f',        "flood fill"                    },
 619   { '\0',       "wrap (rotate) level left"      },
 620   { '?',        "properties of drawing element" },
 621   { '\0',       "wrap (rotate) level right"     },
 622   { '\0',       "random element placement"      },
 623   { 'b',        "grab brush"                    },
 624   { '\0',       "wrap (rotate) level down"      },
 625   { ',',        "pick drawing element"          },
 626   { 'U',        "undo last operation"           },
 627   { 'I',        "level properties"              },
 628   { 'S',        "save level"                    },
 629   { 'C',        "clear level"                   },
 630   { 'T',        "test level"                    },
 631   { 'E',        "exit level editor"             }
 632 };
 633
 634 static int random_placement_value = 10;
 635 static int random_placement_method = RANDOM_USE_QUANTITY;
 636 static int random_placement_background_element = EL_SAND;
 637 static boolean random_placement_background_restricted = FALSE;
 638 static boolean stick_element_properties_window = FALSE;
 639 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
 640 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
 641 static struct ElementInfo custom_element;
 642
 643 static struct
 644 {
 645   int x, y;
 646   int min_value, max_value;
 647   int gadget_id_down, gadget_id_up;
 648   int gadget_id_text;
 649   int *value;
 650   char *text_above, *text_left, *text_right;
 651 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
 652 {
 653   {
 654     DX + 5 - SX,                        DY + 3 - SY,
 655     1,                                  100,
 656     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
 657     GADGET_ID_SELECT_LEVEL_TEXT,
 658     &level_nr,
 659     NULL,                               NULL, NULL
 660   },
 661   {
 662     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(2),
 663     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
 664     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
 665     GADGET_ID_LEVEL_XSIZE_TEXT,
 666     &level.fieldx,
 667     "playfield size",                   NULL, "width",
 668   },
 669   {
 670     ED_SETTINGS_XPOS(0) + 2 * DXSIZE,   ED_COUNTER_YPOS(2),
 671     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
 672     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
 673     GADGET_ID_LEVEL_YSIZE_TEXT,
 674     &level.fieldy,
 675     NULL,                               NULL, "height",
 676   },
 677   {
 678     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(3),
 679     0,                                  999,
 680     GADGET_ID_LEVEL_COLLECT_DOWN,       GADGET_ID_LEVEL_COLLECT_UP,
 681     GADGET_ID_LEVEL_COLLECT_TEXT,
 682     &level.gems_needed,
 683     "number of emeralds to collect",    NULL, NULL
 684   },
 685   {
 686     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(4),
 687     0,                                  999,
 688     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
 689     GADGET_ID_LEVEL_TIMELIMIT_TEXT,
 690     &level.time,
 691     "time available to solve level",    NULL, "(0 => no time limit)"
 692   },
 693   {
 694     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(5),
 695     0,                                  255,
 696     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
 697     GADGET_ID_LEVEL_TIMESCORE_TEXT,
 698     &level.score[SC_TIME_BONUS],
 699     "score for each 10 seconds left",   NULL, NULL
 700   },
 701   {
 702     ED_SETTINGS_XPOS(0),                ED_COUNTER2_YPOS(8),
 703     1,                                  100,
 704     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
 705     GADGET_ID_LEVEL_RANDOM_TEXT,
 706     &random_placement_value,
 707     "random element placement",         NULL, "in"
 708   },
 709   {
 710     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(0),
 711     MIN_SCORE,                          MAX_SCORE,
 712     GADGET_ID_ELEMENT_SCORE_DOWN,       GADGET_ID_ELEMENT_SCORE_UP,
 713     GADGET_ID_ELEMENT_SCORE_TEXT,
 714     NULL,                               /* will be set when used */
 715     NULL,                               NULL, NULL
 716   },
 717   {
 718     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(6),
 719     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
 720     GADGET_ID_ELEMENT_CONTENT_DOWN,     GADGET_ID_ELEMENT_CONTENT_UP,
 721     GADGET_ID_ELEMENT_CONTENT_TEXT,
 722     &level.num_yamyam_contents,
 723     NULL,                               NULL, "number of content areas"
 724   },
 725   {
 726     ED_SETTINGS_XPOS(9),                ED_SETTINGS_YPOS(4),
 727     MIN_SCORE,                          MAX_SCORE,
 728     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
 729     GADGET_ID_CUSTOM_SCORE_TEXT,
 730     &custom_element.score,
 731     NULL,                               "score", NULL
 732   },
 733   {
 734     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(5),
 735     0,                                  999,
 736     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
 737     GADGET_ID_PUSH_DELAY_FIX_TEXT,
 738     &custom_element.push_delay_fixed,
 739     NULL,                               "push delay", NULL
 740   },
 741   {
 742     ED_COUNT_PUSH_DELAY_RND_XPOS,       ED_SETTINGS_YPOS(5),
 743     0,                                  999,
 744     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
 745     GADGET_ID_PUSH_DELAY_RND_TEXT,
 746     &custom_element.push_delay_random,
 747     NULL,                               "+random", NULL
 748   },
 749   {
 750     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(8),
 751     0,                                  999,
 752     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
 753     GADGET_ID_MOVE_DELAY_FIX_TEXT,
 754     &custom_element.move_delay_fixed,
 755     NULL,                               "move delay", NULL
 756   },
 757   {
 758     ED_COUNT_MOVE_DELAY_RND_XPOS,       ED_SETTINGS_YPOS(8),
 759     0,                                  999,
 760     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
 761     GADGET_ID_MOVE_DELAY_RND_TEXT,
 762     &custom_element.move_delay_random,
 763     NULL,                               "+random", NULL
 764   },
 765   {
 766     ED_SETTINGS_XPOS(2),                ED_SETTINGS_YPOS(3),
 767     0,                                  999,
 768     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
 769     GADGET_ID_CHANGE_DELAY_FIX_TEXT,
 770     &custom_element.change.delay_fixed,
 771     NULL,                               "delay", NULL,
 772   },
 773   {
 774     ED_COUNT_CHANGE_DELAY_RND_XPOS,     ED_SETTINGS_YPOS(3),
 775     0,                                  999,
 776     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
 777     GADGET_ID_CHANGE_DELAY_RND_TEXT,
 778     &custom_element.change.delay_random,
 779     NULL,                               "+random", NULL
 780   }
 781 };
 782
 783 static struct
 784 {
 785   int x, y;
 786   int gadget_id;
 787   int size;
 788   char *value;
 789   char *infotext;
 790 } textinput_info[ED_NUM_TEXTINPUT] =
 791 {
 792   {
 793     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(0),
 794     GADGET_ID_LEVEL_NAME,
 795     MAX_LEVEL_NAME_LEN,
 796     level.name,
 797     "Title"
 798   },
 799   {
 800     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(1),
 801     GADGET_ID_LEVEL_AUTHOR,
 802     MAX_LEVEL_AUTHOR_LEN,
 803     level.author,
 804     "Author"
 805   }
 806 };
 807
 808 static struct ValueTextInfo options_walk_to_action[] =
 809 {
 810   { EP_DIGGABLE,                "diggable"                      },
 811   { EP_COLLECTIBLE,             "collectible"                   },
 812   { EP_PUSHABLE,                "pushable"                      },
 813   { -1,                         NULL                            }
 814 };
 815 static int index_walk_to_action = 0;
 816
 817 static struct ValueTextInfo options_move_pattern[] =
 818 {
 819   { MV_LEFT,                    "left"                          },
 820   { MV_RIGHT,                   "right"                         },
 821   { MV_UP,                      "up"                            },
 822   { MV_DOWN,                    "down"                          },
 823   { MV_HORIZONTAL,              "horizontal"                    },
 824   { MV_VERTICAL,                "vertical"                      },
 825   { MV_ALL_DIRECTIONS,          "all directions"                },
 826   { MV_TOWARDS_PLAYER,          "towards player"                },
 827   { MV_AWAY_FROM_PLAYER,        "away from player"              },
 828   { MV_ALONG_LEFT_SIDE,         "along left side"               },
 829   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
 830   { -1,                         NULL                            }
 831 };
 832 static int index_move_pattern = 0;
 833
 834 static struct ValueTextInfo options_move_direction[] =
 835 {
 836   { MV_NO_MOVING,               "automatic"                     },
 837   { MV_LEFT,                    "left"                          },
 838   { MV_RIGHT,                   "right"                         },
 839   { MV_UP,                      "up"                            },
 840   { MV_DOWN,                    "down"                          },
 841   { -1,                         NULL                            }
 842 };
 843 static int index_move_direction = 0;
 844
 845 static struct ValueTextInfo options_consistency[] =
 846 {
 847   { EP_INDESTRUCTIBLE,          "indestructible"                },
 848   { EP_CAN_EXPLODE_BY_FIRE,     "can explode by fire"           },
 849   { EP_CAN_EXPLODE_SMASHED,     "can explode when smashed"      },
 850   { EP_CAN_EXPLODE_IMPACT,      "can explode on impact"         },
 851   { -1,                         NULL                            }
 852 };
 853 static int index_consistency = 0;
 854
 855 static struct ValueTextInfo options_deadliness[] =
 856 {
 857   { EP_DONT_RUN_INTO,           "running into"                  },
 858   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
 859   { EP_DONT_TOUCH,              "touching"                      },
 860   { -1,                         NULL                            }
 861 };
 862 static int index_deadliness = 0;
 863
 864 static struct ValueTextInfo options_walkable_layer[] =
 865 {
 866   { EP_WALKABLE_OVER,           "over"                          },
 867   { EP_WALKABLE_INSIDE,         "inside"                        },
 868   { EP_WALKABLE_UNDER,          "under"                         },
 869   { -1,                         NULL                            }
 870 };
 871 static int index_walkable_layer = 0;
 872
 873 static struct ValueTextInfo options_time_units[] =
 874 {
 875   { 50,                         "seconds"                       },
 876   { 1,                          "frames"                        },
 877   { -1,                         NULL                            }
 878 };
 879 static int index_time_units = 0;
 880
 881 static struct ValueTextInfo options_change_cause[] =
 882 {
 883   { 1,                          "specified delay"               },
 884   { 2,                          "impact (active)"               },
 885   { 3,                          "impact (passive)"              },
 886   { 4,                          "touched by player"             },
 887   { 5,                          "pressed by player"             },
 888   { -1,                         NULL                            }
 889 };
 890 static int index_change_cause = 0, value_change_cause = 0;
 891
 892 static struct
 893 {
 894   int x, y;
 895   int gadget_id;
 896   int size;     /* char size of selectbox or '-1' (dynamically determined) */
 897   struct ValueTextInfo *options;
 898   int *index, *value;
 899   char *text_left, *text_right, *infotext;
 900 } selectbox_info[ED_NUM_SELECTBOX] =
 901 {
 902   {
 903     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(4),
 904     GADGET_ID_CUSTOM_WALK_TO_ACTION,
 905     -1,
 906     options_walk_to_action, &index_walk_to_action,
 907     &custom_element.walk_to_action,
 908     NULL, NULL, "diggable/collectible/pushable"
 909   },
 910   {
 911     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(3),
 912     GADGET_ID_CUSTOM_CONSISTENCY,
 913     -1,
 914     options_consistency, &index_consistency,
 915     &custom_element.consistency,
 916     NULL, "to", "consistency/destructibility"
 917   },
 918   {
 919     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(2),
 920     GADGET_ID_CUSTOM_DEADLINESS,
 921     -1,
 922     options_deadliness, &index_deadliness,
 923     &custom_element.deadliness,
 924     "deadly when", NULL, "deadliness of element"
 925   },
 926   {
 927     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(6),
 928     GADGET_ID_CUSTOM_MOVE_PATTERN,
 929     -1,
 930     options_move_pattern, &index_move_pattern,
 931     &custom_element.move_pattern,
 932     "can move", NULL, "element move direction"
 933   },
 934   {
 935     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(7),
 936     GADGET_ID_CUSTOM_MOVE_DIRECTION,
 937     -1,
 938     options_move_direction, &index_move_direction,
 939     &custom_element.move_direction_initial,
 940     "starts moving", NULL, "initial element move direction"
 941   },
 942   {
 943     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(13),
 944     GADGET_ID_CUSTOM_WALKABLE_LAYER,
 945     -1,
 946     options_walkable_layer, &index_walkable_layer,
 947     &custom_element.walkable_layer,
 948     "player can walk", NULL, "layer where player can walk"
 949   },
 950   {
 951     ED_SETTINGS_XPOS(2),                ED_SETTINGS_YPOS(4),
 952     GADGET_ID_CHANGE_TIME_UNITS,
 953     -1,
 954     options_time_units, &index_time_units,
 955     &custom_element.change.delay_frames,
 956     "delay time given in", NULL, "delay time units for change"
 957   },
 958   {
 959     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(8),
 960     GADGET_ID_CHANGE_CAUSE,
 961     -1,
 962     options_change_cause, &index_change_cause,
 963     &value_change_cause,
 964     "test:", NULL, "test-selectbox entry"
 965   },
 966 };
 967
 968 static struct
 969 {
 970   int x, y;
 971   int gadget_id;
 972   int size;
 973   char *text, *infotext;
 974 } textbutton_info[ED_NUM_TEXTBUTTON] =
 975 {
 976   {
 977     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(1),
 978     GADGET_ID_PROPERTIES_INFO,
 979     11, "Information",                  "Show information about element"
 980   },
 981   {
 982     ED_SETTINGS_XPOS(0) + 166,          ED_COUNTER_YPOS(1),
 983     GADGET_ID_PROPERTIES_CONFIG,
 984     11, "Configure",                    "Configure element properties"
 985   },
 986   {
 987     ED_SETTINGS_XPOS(0) + 332,          ED_COUNTER_YPOS(1),
 988     GADGET_ID_PROPERTIES_ADVANCED,
 989     11, "Advanced",                     "Advanced element configuration"
 990   },
 991   {
 992     ED_SETTINGS_XPOS(0) + 262,          ED_SETTINGS_YPOS(5),
 993     GADGET_ID_SAVE_AS_TEMPLATE,
 994     -1, "Save as template",             "Save current settings as new template"
 995   },
 996 };
 997
 998 static struct
 999 {
1000   int gd_x, gd_y;
1001   int x, y;
1002   int gadget_id;
1003   char *infotext;
1004 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
1005 {
1006   {
1007     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 0 * ED_SCROLLBUTTON_YSIZE,
1008     ED_SCROLL_UP_XPOS,      ED_SCROLL_UP_YPOS,
1009     GADGET_ID_SCROLL_UP,
1010     "scroll level editing area up"
1011   },
1012   {
1013     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 1 * ED_SCROLLBUTTON_YSIZE,
1014     ED_SCROLL_DOWN_XPOS,    ED_SCROLL_DOWN_YPOS,
1015     GADGET_ID_SCROLL_DOWN,
1016     "scroll level editing area down"
1017   },
1018   {
1019     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 2 * ED_SCROLLBUTTON_YSIZE,
1020     ED_SCROLL_LEFT_XPOS,    ED_SCROLL_LEFT_YPOS,
1021     GADGET_ID_SCROLL_LEFT,
1022     "scroll level editing area left"
1023   },
1024   {
1025     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 3 * ED_SCROLLBUTTON_YSIZE,
1026     ED_SCROLL_RIGHT_XPOS,   ED_SCROLL_RIGHT_YPOS,
1027     GADGET_ID_SCROLL_RIGHT,
1028     "scroll level editing area right"
1029   },
1030   {
1031     ED_SCROLLBUTTON2_XPOS,  ED_SCROLLBUTTON2_YPOS + 0 * ED_SCROLLBUTTON2_YSIZE,
1032     ED_SCROLL2_UP_XPOS,     ED_SCROLL2_UP_YPOS,
1033     GADGET_ID_SCROLL_LIST_UP,
1034     "scroll element list up ('Page Up')"
1035   },
1036   {
1037     ED_SCROLLBUTTON2_XPOS,  ED_SCROLLBUTTON2_YPOS + 1 * ED_SCROLLBUTTON2_YSIZE,
1038     ED_SCROLL2_DOWN_XPOS,    ED_SCROLL2_DOWN_YPOS,
1039     GADGET_ID_SCROLL_LIST_DOWN,
1040     "scroll element list down ('Page Down')"
1041   }
1042 };
1043
1044 static struct
1045 {
1046   int gd_x, gd_y;
1047   int x, y;
1048   int width, height;
1049   int type;
1050   int gadget_id;
1051   char *infotext;
1052 } scrollbar_info[ED_NUM_SCROLLBARS] =
1053 {
1054   {
1055     ED_SCROLLBAR_XPOS,                  ED_SCROLLBAR_YPOS,
1056     SX + ED_SCROLL_HORIZONTAL_XPOS,     SY + ED_SCROLL_HORIZONTAL_YPOS,
1057     ED_SCROLL_HORIZONTAL_XSIZE,         ED_SCROLL_HORIZONTAL_YSIZE,
1058     GD_TYPE_SCROLLBAR_HORIZONTAL,
1059     GADGET_ID_SCROLL_HORIZONTAL,
1060     "scroll level editing area horizontally"
1061   },
1062   {
1063     ED_SCROLLBAR_XPOS,                  ED_SCROLLBAR_YPOS,
1064     SX + ED_SCROLL_VERTICAL_XPOS,       SY + ED_SCROLL_VERTICAL_YPOS,
1065     ED_SCROLL_VERTICAL_XSIZE,           ED_SCROLL_VERTICAL_YSIZE,
1066     GD_TYPE_SCROLLBAR_VERTICAL,
1067     GADGET_ID_SCROLL_VERTICAL,
1068     "scroll level editing area vertically"
1069   },
1070   {
1071     ED_SCROLLBAR2_XPOS,                 ED_SCROLLBAR2_YPOS,
1072     DX + ED_SCROLL2_VERTICAL_XPOS,      DY + ED_SCROLL2_VERTICAL_YPOS,
1073     ED_SCROLL2_VERTICAL_XSIZE,          ED_SCROLL2_VERTICAL_YSIZE,
1074     GD_TYPE_SCROLLBAR_VERTICAL,
1075     GADGET_ID_SCROLL_LIST_VERTICAL,
1076     "scroll element list vertically"
1077   }
1078 };
1079
1080 static struct
1081 {
1082   int x, y;
1083   int gadget_id;
1084   int radio_button_nr;
1085   int *value;
1086   int checked_value;
1087   char *text_right, *infotext;
1088 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
1089 {
1090   {
1091     ED_SETTINGS_XPOS(0) + 160,          ED_COUNTER2_YPOS(8),
1092     GADGET_ID_RANDOM_PERCENTAGE,
1093     RADIO_NR_RANDOM_ELEMENTS,
1094     &random_placement_method,           RANDOM_USE_PERCENTAGE,
1095     "percentage",                       "use percentage for random elements"
1096   },
1097   {
1098     ED_SETTINGS_XPOS(0) + 340,          ED_COUNTER2_YPOS(8),
1099     GADGET_ID_RANDOM_QUANTITY,
1100     RADIO_NR_RANDOM_ELEMENTS,
1101     &random_placement_method,           RANDOM_USE_QUANTITY,
1102     "quantity",                         "use quantity for random elements"
1103   }
1104 };
1105
1106 static struct
1107 {
1108   int x, y;
1109   int gadget_id;
1110   boolean *value;
1111   char *text_right, *infotext;
1112 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
1113 {
1114   {
1115     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(6) - MINI_TILEY,
1116     GADGET_ID_DOUBLE_SPEED,
1117     &level.double_speed,
1118     "double speed movement",            "set movement speed of player"
1119   },
1120   {
1121     ED_SETTINGS_XPOS(0) + 340,          ED_COUNTER_YPOS(6) - MINI_TILEY,
1122     GADGET_ID_GRAVITY,
1123     &level.gravity,
1124     "gravity",                          "set level gravity"
1125   },
1126   {
1127     ED_SETTINGS_XPOS(0),                ED_COUNTER2_YPOS(9) - MINI_TILEY,
1128     GADGET_ID_RANDOM_RESTRICTED,
1129     &random_placement_background_restricted,
1130     "restrict random placement to",     "set random placement restriction"
1131   },
1132   {
1133     ED_SETTINGS_XPOS(0),                0,      /* set at runtime */
1134     GADGET_ID_STICK_ELEMENT,
1135     &stick_element_properties_window,
1136     "stick this screen to edit content","stick this screen to edit content"
1137   },
1138   {
1139     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(4),
1140     GADGET_ID_EM_SLIPPERY_GEMS,
1141     &level.em_slippery_gems,
1142     "slip down from certain flat walls","use EM style slipping behaviour"
1143   },
1144   {
1145     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(3),
1146     GADGET_ID_CUSTOM_EXPLODE_RESULT,
1147     &custom_element_properties[EP_EXPLODE_RESULT],
1148     NULL,                               "set consistency/destructibility"
1149   },
1150   {
1151     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(4),
1152     GADGET_ID_CUSTOM_WALK_TO_OBJECT,
1153     &custom_element_properties[EP_WALK_TO_OBJECT],
1154     NULL,                               "player can dig/collect/push element"
1155   },
1156   {
1157     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(2),
1158     GADGET_ID_CUSTOM_DEADLY,
1159     &custom_element_properties[EP_DEADLY],
1160     NULL,                               "element can kill the player"
1161   },
1162   {
1163     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(6),
1164     GADGET_ID_CUSTOM_CAN_MOVE,
1165     &custom_element_properties[EP_CAN_MOVE],
1166     NULL,                               "element can move in some direction"
1167   },
1168   {
1169     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(9),
1170     GADGET_ID_CUSTOM_CAN_FALL,
1171     &custom_element_properties[EP_CAN_FALL],
1172     "can fall",                         "element can fall down"
1173   },
1174   {
1175     ED_SETTINGS_XPOS(6),                ED_SETTINGS_YPOS(9),
1176     GADGET_ID_CUSTOM_CAN_SMASH,
1177     &custom_element_properties[EP_CAN_SMASH],
1178     "can smash on impact",              "element can smash other elements"
1179   },
1180   {
1181     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(10),
1182     GADGET_ID_CUSTOM_SLIPPERY,
1183     &custom_element_properties[EP_SLIPPERY],
1184     "slippery",                         "other elements can fall down from it"
1185   },
1186   {
1187     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(13),
1188     GADGET_ID_CUSTOM_WALKABLE,
1189     &custom_element_properties[EP_WALKABLE],
1190     NULL,                               "player can walk on the same field"
1191   },
1192   {
1193     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(1),
1194     GADGET_ID_CUSTOM_USE_GRAPHIC,
1195     &custom_element.use_gfx_element,
1196     "use graphic of element:",          "use graphic for custom element"
1197   },
1198   {
1199     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(5),
1200     GADGET_ID_CUSTOM_USE_TEMPLATE,
1201     &custom_element.use_template,
1202     "use template",                     "use template for custom properties"
1203   },
1204   {
1205     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(2),
1206     GADGET_ID_CUSTOM_CHANGEABLE,
1207     &custom_element_properties[EP_CHANGEABLE],
1208     "element changes to    after:",     "element can change to other element"
1209   },
1210   {
1211     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(3),
1212     GADGET_ID_CHANGE_DELAY,
1213     &custom_element_change_events[CE_DELAY],
1214     NULL,                               "element changes after delay"
1215   },
1216 };
1217
1218
1219 /*
1220   -----------------------------------------------------------------------------
1221   some internally used variables
1222   -----------------------------------------------------------------------------
1223 */
1224
1225 /* actual size of level editor drawing area */
1226 static int ed_fieldx = MAX_ED_FIELDX - 1, ed_fieldy = MAX_ED_FIELDY - 1;
1227
1228 /* actual position of level editor drawing area in level playfield */
1229 static int level_xpos = -1, level_ypos = -1;
1230
1231 #define IN_ED_FIELD(x,y)  ((x)>=0 && (x)<ed_fieldx && (y)>=0 &&(y)<ed_fieldy)
1232
1233 /* drawing elements on the three mouse buttons */
1234 static int new_element1 = EL_WALL;
1235 static int new_element2 = EL_EMPTY;
1236 static int new_element3 = EL_SAND;
1237
1238 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
1239                                 (button) == 2 ? new_element2 : \
1240                                 (button) == 3 ? new_element3 : EL_EMPTY)
1241 #define BUTTON_STEPSIZE(button) ((button) == 1 ? 1 : (button) == 2 ? 5 : 10)
1242
1243 /* forward declaration for internal use */
1244 static void ModifyEditorCounter(int, int);
1245 static void ModifyEditorCounterLimits(int, int, int);
1246 static void ModifyEditorSelectbox(int, int);
1247 static void ModifyEditorElementList();
1248 static void DrawDrawingWindow();
1249 static void DrawLevelInfoWindow();
1250 static void DrawPropertiesWindow();
1251 static boolean checkPropertiesConfig();
1252 static void CopyLevelToUndoBuffer(int);
1253 static void HandleDrawingAreas(struct GadgetInfo *);
1254 static void HandleCounterButtons(struct GadgetInfo *);
1255 static void HandleTextInputGadgets(struct GadgetInfo *);
1256 static void HandleSelectboxGadgets(struct GadgetInfo *);
1257 static void HandleTextbuttonGadgets(struct GadgetInfo *);
1258 static void HandleRadiobuttons(struct GadgetInfo *);
1259 static void HandleCheckbuttons(struct GadgetInfo *);
1260 static void HandleControlButtons(struct GadgetInfo *);
1261 static void HandleDrawingAreaInfo(struct GadgetInfo *);
1262
1263 static struct GadgetInfo *level_editor_gadget[NUM_EDITOR_GADGETS];
1264
1265 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
1266 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
1267 static boolean draw_with_brush = FALSE;
1268 static int properties_element = 0;
1269
1270 static short FieldBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
1271 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
1272 static int undo_buffer_position = 0;
1273 static int undo_buffer_steps = 0;
1274
1275 static int edit_mode;
1276 static int edit_mode_properties;
1277
1278 static int element_shift = 0;
1279
1280 static int editor_el_boulderdash[] =
1281 {
1282   EL_CHAR('B'),
1283   EL_CHAR('O'),
1284   EL_CHAR('U'),
1285   EL_CHAR('L'),
1286
1287   EL_CHAR('-'),
1288   EL_CHAR('D'),
1289   EL_CHAR('E'),
1290   EL_CHAR('R'),
1291
1292   EL_CHAR('D'),
1293   EL_CHAR('A'),
1294   EL_CHAR('S'),
1295   EL_CHAR('H'),
1296
1297   EL_PLAYER_1,
1298   EL_EMPTY,
1299   EL_SAND,
1300   EL_STEELWALL,
1301
1302   EL_BD_WALL,
1303   EL_BD_MAGIC_WALL,
1304   EL_EXIT_CLOSED,
1305   EL_EXIT_OPEN,
1306
1307   EL_BD_DIAMOND,
1308   EL_BD_BUTTERFLY_UP,
1309   EL_BD_FIREFLY_UP,
1310   EL_BD_ROCK,
1311
1312   EL_BD_BUTTERFLY_LEFT,
1313   EL_BD_FIREFLY_LEFT,
1314   EL_BD_BUTTERFLY_RIGHT,
1315   EL_BD_FIREFLY_RIGHT,
1316
1317   EL_BD_AMOEBA,
1318   EL_BD_BUTTERFLY_DOWN,
1319   EL_BD_FIREFLY_DOWN,
1320   EL_EMPTY,
1321 };
1322 static int num_editor_el_boulderdash = SIZEOF_ARRAY_INT(editor_el_boulderdash);
1323
1324 static int editor_el_emerald_mine[] =
1325 {
1326   EL_CHAR('E'),
1327   EL_CHAR('M'),
1328   EL_CHAR('E'),
1329   EL_CHAR('-'),
1330
1331   EL_CHAR('R'),
1332   EL_CHAR('A'),
1333   EL_CHAR('L'),
1334   EL_CHAR('D'),
1335
1336   EL_CHAR('M'),
1337   EL_CHAR('I'),
1338   EL_CHAR('N'),
1339   EL_CHAR('E'),
1340
1341   EL_PLAYER_1,
1342   EL_PLAYER_2,
1343   EL_PLAYER_3,
1344   EL_PLAYER_4,
1345
1346   EL_PLAYER_1,
1347   EL_EMPTY,
1348   EL_SAND,
1349   EL_ROCK,
1350
1351   EL_STEELWALL,
1352   EL_WALL,
1353   EL_WALL_CRUMBLED,
1354   EL_MAGIC_WALL,
1355
1356   EL_EMERALD,
1357   EL_DIAMOND,
1358   EL_NUT,
1359   EL_BOMB,
1360
1361   EL_WALL_EMERALD,
1362   EL_WALL_DIAMOND,
1363   EL_QUICKSAND_EMPTY,
1364   EL_QUICKSAND_FULL,
1365
1366   EL_DYNAMITE,
1367   EL_DYNAMITE_ACTIVE,
1368   EL_EXIT_CLOSED,
1369   EL_EXIT_OPEN,
1370
1371   EL_YAMYAM,
1372   EL_BUG_UP,
1373   EL_SPACESHIP_UP,
1374   EL_ROBOT,
1375
1376   EL_BUG_LEFT,
1377   EL_SPACESHIP_LEFT,
1378   EL_BUG_RIGHT,
1379   EL_SPACESHIP_RIGHT,
1380
1381   EL_ROBOT_WHEEL,
1382   EL_BUG_DOWN,
1383   EL_SPACESHIP_DOWN,
1384   EL_INVISIBLE_WALL,
1385
1386   EL_ACID_POOL_TOPLEFT,
1387   EL_ACID,
1388   EL_ACID_POOL_TOPRIGHT,
1389   EL_EMPTY,
1390
1391   EL_ACID_POOL_BOTTOMLEFT,
1392   EL_ACID_POOL_BOTTOM,
1393   EL_ACID_POOL_BOTTOMRIGHT,
1394   EL_EMPTY,
1395
1396   EL_AMOEBA_DROP,
1397   EL_AMOEBA_DEAD,
1398   EL_AMOEBA_WET,
1399   EL_AMOEBA_DRY,
1400
1401   EL_EM_KEY_1_FILE,
1402   EL_EM_KEY_2_FILE,
1403   EL_EM_KEY_3_FILE,
1404   EL_EM_KEY_4_FILE,
1405
1406   EL_EM_GATE_1,
1407   EL_EM_GATE_2,
1408   EL_EM_GATE_3,
1409   EL_EM_GATE_4,
1410
1411   EL_EM_GATE_1_GRAY,
1412   EL_EM_GATE_2_GRAY,
1413   EL_EM_GATE_3_GRAY,
1414   EL_EM_GATE_4_GRAY,
1415 };
1416 static int num_editor_el_emerald_mine = SIZEOF_ARRAY_INT(editor_el_emerald_mine);
1417
1418 static int editor_el_more[] =
1419 {
1420   EL_CHAR('M'),
1421   EL_CHAR('O'),
1422   EL_CHAR('R'),
1423   EL_CHAR('E'),
1424
1425   EL_KEY_1,
1426   EL_KEY_2,
1427   EL_KEY_3,
1428   EL_KEY_4,
1429
1430   EL_GATE_1,
1431   EL_GATE_2,
1432   EL_GATE_3,
1433   EL_GATE_4,
1434
1435   EL_GATE_1_GRAY,
1436   EL_GATE_2_GRAY,
1437   EL_GATE_3_GRAY,
1438   EL_GATE_4_GRAY,
1439
1440   EL_ARROW_LEFT,
1441   EL_ARROW_RIGHT,
1442   EL_ARROW_UP,
1443   EL_ARROW_DOWN,
1444
1445   EL_AMOEBA_FULL,
1446   EL_EMERALD_YELLOW,
1447   EL_EMERALD_RED,
1448   EL_EMERALD_PURPLE,
1449
1450   EL_WALL_BD_DIAMOND,
1451   EL_WALL_EMERALD_YELLOW,
1452   EL_WALL_EMERALD_RED,
1453   EL_WALL_EMERALD_PURPLE,
1454
1455   EL_GAME_OF_LIFE,
1456   EL_PACMAN_UP,
1457   EL_TIME_ORB_FULL,
1458   EL_TIME_ORB_EMPTY,
1459
1460   EL_PACMAN_LEFT,
1461   EL_DARK_YAMYAM,
1462   EL_PACMAN_RIGHT,
1463   EL_EXPANDABLE_WALL,
1464
1465   EL_BIOMAZE,
1466   EL_PACMAN_DOWN,
1467   EL_LAMP,
1468   EL_LAMP_ACTIVE,
1469
1470   EL_DYNABOMB_INCREASE_NUMBER,
1471   EL_DYNABOMB_INCREASE_SIZE,
1472   EL_DYNABOMB_INCREASE_POWER,
1473   EL_STONEBLOCK,
1474
1475   EL_MOLE,
1476   EL_PENGUIN,
1477   EL_PIG,
1478   EL_DRAGON,
1479
1480   EL_EMPTY,
1481   EL_MOLE_UP,
1482   EL_EMPTY,
1483   EL_EMPTY,
1484
1485   EL_MOLE_LEFT,
1486   EL_EMPTY,
1487   EL_MOLE_RIGHT,
1488   EL_EMPTY,
1489
1490   EL_EMPTY,
1491   EL_MOLE_DOWN,
1492   EL_BALLOON,
1493   EL_BALLOON_SWITCH_ANY,
1494
1495   EL_BALLOON_SWITCH_LEFT,
1496   EL_BALLOON_SWITCH_RIGHT,
1497   EL_BALLOON_SWITCH_UP,
1498   EL_BALLOON_SWITCH_DOWN,
1499
1500   EL_SATELLITE,
1501   EL_EXPANDABLE_WALL_HORIZONTAL,
1502   EL_EXPANDABLE_WALL_VERTICAL,
1503   EL_EXPANDABLE_WALL_ANY,
1504
1505   EL_INVISIBLE_STEELWALL,
1506   EL_INVISIBLE_WALL,
1507   EL_SPEED_PILL,
1508   EL_BLACK_ORB,
1509
1510   EL_EMC_STEELWALL_1,
1511   EL_EMC_WALL_1,
1512   EL_EMC_WALL_2,
1513   EL_EMC_WALL_3,
1514
1515   EL_EMC_WALL_4,
1516   EL_EMC_WALL_5,
1517   EL_EMC_WALL_6,
1518   EL_EMC_WALL_7,
1519 };
1520 static int num_editor_el_more = SIZEOF_ARRAY_INT(editor_el_more);
1521
1522 static int editor_el_sokoban[] =
1523 {
1524   EL_CHAR('S'),
1525   EL_CHAR('O'),
1526   EL_CHAR('K'),
1527   EL_CHAR('O'),
1528
1529   EL_CHAR('-'),
1530   EL_CHAR('B'),
1531   EL_CHAR('A'),
1532   EL_CHAR('N'),
1533
1534   EL_SOKOBAN_OBJECT,
1535   EL_SOKOBAN_FIELD_EMPTY,
1536   EL_SOKOBAN_FIELD_FULL,
1537   EL_STEELWALL,
1538 };
1539 static int num_editor_el_sokoban = SIZEOF_ARRAY_INT(editor_el_sokoban);
1540
1541 static int editor_el_supaplex[] =
1542 {
1543   EL_CHAR('S'),
1544   EL_CHAR('U'),
1545   EL_CHAR('P'),
1546   EL_CHAR('A'),
1547
1548   EL_CHAR('P'),
1549   EL_CHAR('L'),
1550   EL_CHAR('E'),
1551   EL_CHAR('X'),
1552
1553   EL_SP_EMPTY,
1554   EL_SP_ZONK,
1555   EL_SP_BASE,
1556   EL_SP_MURPHY,
1557
1558   EL_SP_INFOTRON,
1559   EL_SP_CHIP_SINGLE,
1560   EL_SP_HARDWARE_GRAY,
1561   EL_SP_EXIT_CLOSED,
1562
1563   EL_SP_DISK_ORANGE,
1564   EL_SP_PORT_RIGHT,
1565   EL_SP_PORT_DOWN,
1566   EL_SP_PORT_LEFT,
1567
1568   EL_SP_PORT_UP,
1569   EL_SP_GRAVITY_PORT_RIGHT,
1570   EL_SP_GRAVITY_PORT_DOWN,
1571   EL_SP_GRAVITY_PORT_LEFT,
1572
1573   EL_SP_GRAVITY_PORT_UP,
1574   EL_SP_SNIKSNAK,
1575   EL_SP_DISK_YELLOW,
1576   EL_SP_TERMINAL,
1577
1578   EL_SP_DISK_RED,
1579   EL_SP_PORT_VERTICAL,
1580   EL_SP_PORT_HORIZONTAL,
1581   EL_SP_PORT_ANY,
1582
1583   EL_SP_ELECTRON,
1584   EL_SP_BUGGY_BASE,
1585   EL_SP_CHIP_LEFT,
1586   EL_SP_CHIP_RIGHT,
1587
1588   EL_SP_HARDWARE_BASE_1,
1589   EL_SP_HARDWARE_GREEN,
1590   EL_SP_HARDWARE_BLUE,
1591   EL_SP_HARDWARE_RED,
1592
1593   EL_SP_HARDWARE_YELLOW,
1594   EL_SP_HARDWARE_BASE_2,
1595   EL_SP_HARDWARE_BASE_3,
1596   EL_SP_HARDWARE_BASE_4,
1597
1598   EL_SP_HARDWARE_BASE_5,
1599   EL_SP_HARDWARE_BASE_6,
1600   EL_SP_CHIP_TOP,
1601   EL_SP_CHIP_BOTTOM,
1602 };
1603 static int num_editor_el_supaplex = SIZEOF_ARRAY_INT(editor_el_supaplex);
1604
1605 static int editor_el_diamond_caves[] =
1606 {
1607   EL_CHAR('D'),
1608   EL_CHAR('I'),
1609   EL_CHAR('A'),
1610   EL_CHAR('-'),
1611
1612   EL_CHAR('M'),
1613   EL_CHAR('O'),
1614   EL_CHAR('N'),
1615   EL_CHAR('D'),
1616
1617   EL_CHAR('C'),
1618   EL_CHAR('A'),
1619   EL_CHAR('V'),
1620   EL_CHAR('E'),
1621
1622   EL_CHAR('S'),
1623   EL_CHAR(' '),
1624   EL_CHAR('I'),
1625   EL_CHAR('I'),
1626
1627   EL_PEARL,
1628   EL_CRYSTAL,
1629   EL_WALL_PEARL,
1630   EL_WALL_CRYSTAL,
1631
1632   EL_CONVEYOR_BELT_1_LEFT,
1633   EL_CONVEYOR_BELT_1_MIDDLE,
1634   EL_CONVEYOR_BELT_1_RIGHT,
1635   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1636
1637   EL_CONVEYOR_BELT_2_LEFT,
1638   EL_CONVEYOR_BELT_2_MIDDLE,
1639   EL_CONVEYOR_BELT_2_RIGHT,
1640   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1641
1642   EL_CONVEYOR_BELT_3_LEFT,
1643   EL_CONVEYOR_BELT_3_MIDDLE,
1644   EL_CONVEYOR_BELT_3_RIGHT,
1645   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1646
1647   EL_CONVEYOR_BELT_4_LEFT,
1648   EL_CONVEYOR_BELT_4_MIDDLE,
1649   EL_CONVEYOR_BELT_4_RIGHT,
1650   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1651
1652   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1653   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1654   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1655   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1656
1657   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1658   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1659   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1660   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1661
1662   EL_SWITCHGATE_OPEN,
1663   EL_SWITCHGATE_CLOSED,
1664   EL_SWITCHGATE_SWITCH_UP,
1665   EL_ENVELOPE,
1666
1667   EL_TIMEGATE_CLOSED,
1668   EL_TIMEGATE_OPEN,
1669   EL_TIMEGATE_SWITCH,
1670   EL_EMPTY,
1671
1672   EL_LANDMINE,
1673   EL_INVISIBLE_SAND,
1674   EL_STEELWALL_SLANTED,
1675   EL_EMPTY,
1676
1677   EL_SIGN_EXCLAMATION,
1678   EL_SIGN_STOP,
1679   EL_LIGHT_SWITCH,
1680   EL_LIGHT_SWITCH_ACTIVE,
1681
1682   EL_SHIELD_NORMAL,
1683   EL_SHIELD_DEADLY,
1684   EL_EXTRA_TIME,
1685   EL_EMPTY,
1686 };
1687 static int num_editor_el_diamond_caves = SIZEOF_ARRAY_INT(editor_el_diamond_caves);
1688
1689 static int editor_el_dx_boulderdash[] =
1690 {
1691   EL_CHAR('D'),
1692   EL_CHAR('X'),
1693   EL_CHAR('-'),
1694   EL_CHAR(' '),
1695
1696   EL_CHAR('B'),
1697   EL_CHAR('O'),
1698   EL_CHAR('U'),
1699   EL_CHAR('L'),
1700
1701   EL_CHAR('-'),
1702   EL_CHAR('D'),
1703   EL_CHAR('E'),
1704   EL_CHAR('R'),
1705
1706   EL_CHAR('D'),
1707   EL_CHAR('A'),
1708   EL_CHAR('S'),
1709   EL_CHAR('H'),
1710
1711   EL_SPRING,
1712   EL_TUBE_RIGHT_DOWN,
1713   EL_TUBE_HORIZONTAL_DOWN,
1714   EL_TUBE_LEFT_DOWN,
1715
1716   EL_TUBE_HORIZONTAL,
1717   EL_TUBE_VERTICAL_RIGHT,
1718   EL_TUBE_ANY,
1719   EL_TUBE_VERTICAL_LEFT,
1720
1721   EL_TUBE_VERTICAL,
1722   EL_TUBE_RIGHT_UP,
1723   EL_TUBE_HORIZONTAL_UP,
1724   EL_TUBE_LEFT_UP,
1725
1726   EL_TRAP,
1727   EL_DX_SUPABOMB,
1728   EL_EMPTY,
1729   EL_EMPTY
1730 };
1731 static int num_editor_el_dx_boulderdash = SIZEOF_ARRAY_INT(editor_el_dx_boulderdash);
1732
1733 static int editor_el_chars[] =
1734 {
1735   EL_CHAR('T'),
1736   EL_CHAR('E'),
1737   EL_CHAR('X'),
1738   EL_CHAR('T'),
1739
1740   EL_CHAR(' '),
1741   EL_CHAR('!'),
1742   EL_CHAR('"'),
1743   EL_CHAR('#'),
1744
1745   EL_CHAR('$'),
1746   EL_CHAR('%'),
1747   EL_CHAR('&'),
1748   EL_CHAR('\''),
1749
1750   EL_CHAR('('),
1751   EL_CHAR(')'),
1752   EL_CHAR('*'),
1753   EL_CHAR('+'),
1754
1755   EL_CHAR(','),
1756   EL_CHAR('-'),
1757   EL_CHAR('.'),
1758   EL_CHAR('/'),
1759
1760   EL_CHAR('0'),
1761   EL_CHAR('1'),
1762   EL_CHAR('2'),
1763   EL_CHAR('3'),
1764
1765   EL_CHAR('4'),
1766   EL_CHAR('5'),
1767   EL_CHAR('6'),
1768   EL_CHAR('7'),
1769
1770   EL_CHAR('8'),
1771   EL_CHAR('9'),
1772   EL_CHAR(':'),
1773   EL_CHAR(';'),
1774
1775   EL_CHAR('<'),
1776   EL_CHAR('='),
1777   EL_CHAR('>'),
1778   EL_CHAR('?'),
1779
1780   EL_CHAR('@'),
1781   EL_CHAR('A'),
1782   EL_CHAR('B'),
1783   EL_CHAR('C'),
1784
1785   EL_CHAR('D'),
1786   EL_CHAR('E'),
1787   EL_CHAR('F'),
1788   EL_CHAR('G'),
1789
1790   EL_CHAR('H'),
1791   EL_CHAR('I'),
1792   EL_CHAR('J'),
1793   EL_CHAR('K'),
1794
1795   EL_CHAR('L'),
1796   EL_CHAR('M'),
1797   EL_CHAR('N'),
1798   EL_CHAR('O'),
1799
1800   EL_CHAR('P'),
1801   EL_CHAR('Q'),
1802   EL_CHAR('R'),
1803   EL_CHAR('S'),
1804
1805   EL_CHAR('T'),
1806   EL_CHAR('U'),
1807   EL_CHAR('V'),
1808   EL_CHAR('W'),
1809
1810   EL_CHAR('X'),
1811   EL_CHAR('Y'),
1812   EL_CHAR('Z'),
1813   EL_CHAR('['),
1814
1815   EL_CHAR('\\'),
1816   EL_CHAR(']'),
1817   EL_CHAR('^'),
1818   EL_CHAR('_'),
1819
1820   EL_CHAR('©'),
1821   EL_CHAR('Ä'),
1822   EL_CHAR('Ö'),
1823   EL_CHAR('Ü'),
1824
1825   EL_CHAR('°'),
1826   EL_CHAR('®'),
1827   EL_CHAR(FONT_ASCII_CURSOR),
1828   EL_CHAR(' ')
1829 };
1830 static int num_editor_el_chars = SIZEOF_ARRAY_INT(editor_el_chars);
1831
1832 static int editor_el_custom[] =
1833 {
1834   EL_CHAR('C'),
1835   EL_CHAR('U'),
1836   EL_CHAR('S'),
1837   EL_CHAR('-'),
1838
1839   EL_CHAR('T'),
1840   EL_CHAR('O'),
1841   EL_CHAR('M'),
1842   EL_CHAR(' '),
1843
1844   EL_CHAR('E'),
1845   EL_CHAR('L'),
1846   EL_CHAR('E'),
1847   EL_CHAR('M'),
1848
1849   EL_CHAR('E'),
1850   EL_CHAR('N'),
1851   EL_CHAR('T'),
1852   EL_CHAR('S'),
1853
1854   EL_CUSTOM_START + 0,
1855   EL_CUSTOM_START + 1,
1856   EL_CUSTOM_START + 2,
1857   EL_CUSTOM_START + 3,
1858
1859   EL_CUSTOM_START + 4,
1860   EL_CUSTOM_START + 5,
1861   EL_CUSTOM_START + 6,
1862   EL_CUSTOM_START + 7,
1863
1864   EL_CUSTOM_START + 8,
1865   EL_CUSTOM_START + 9,
1866   EL_CUSTOM_START + 10,
1867   EL_CUSTOM_START + 11,
1868
1869   EL_CUSTOM_START + 12,
1870   EL_CUSTOM_START + 13,
1871   EL_CUSTOM_START + 14,
1872   EL_CUSTOM_START + 15,
1873
1874   EL_CUSTOM_START + 16,
1875   EL_CUSTOM_START + 17,
1876   EL_CUSTOM_START + 18,
1877   EL_CUSTOM_START + 19,
1878
1879   EL_CUSTOM_START + 20,
1880   EL_CUSTOM_START + 21,
1881   EL_CUSTOM_START + 22,
1882   EL_CUSTOM_START + 23,
1883
1884   EL_CUSTOM_START + 24,
1885   EL_CUSTOM_START + 25,
1886   EL_CUSTOM_START + 26,
1887   EL_CUSTOM_START + 27,
1888
1889   EL_CUSTOM_START + 28,
1890   EL_CUSTOM_START + 29,
1891   EL_CUSTOM_START + 30,
1892   EL_CUSTOM_START + 31,
1893
1894   EL_CUSTOM_START + 32,
1895   EL_CUSTOM_START + 33,
1896   EL_CUSTOM_START + 34,
1897   EL_CUSTOM_START + 35,
1898
1899   EL_CUSTOM_START + 36,
1900   EL_CUSTOM_START + 37,
1901   EL_CUSTOM_START + 38,
1902   EL_CUSTOM_START + 39,
1903
1904   EL_CUSTOM_START + 40,
1905   EL_CUSTOM_START + 41,
1906   EL_CUSTOM_START + 42,
1907   EL_CUSTOM_START + 43,
1908
1909   EL_CUSTOM_START + 44,
1910   EL_CUSTOM_START + 45,
1911   EL_CUSTOM_START + 46,
1912   EL_CUSTOM_START + 47,
1913
1914   EL_CUSTOM_START + 48,
1915   EL_CUSTOM_START + 49,
1916   EL_CUSTOM_START + 50,
1917   EL_CUSTOM_START + 51,
1918
1919   EL_CUSTOM_START + 52,
1920   EL_CUSTOM_START + 53,
1921   EL_CUSTOM_START + 54,
1922   EL_CUSTOM_START + 55,
1923
1924   EL_CUSTOM_START + 56,
1925   EL_CUSTOM_START + 57,
1926   EL_CUSTOM_START + 58,
1927   EL_CUSTOM_START + 59,
1928
1929   EL_CUSTOM_START + 60,
1930   EL_CUSTOM_START + 61,
1931   EL_CUSTOM_START + 62,
1932   EL_CUSTOM_START + 63,
1933
1934   EL_CUSTOM_START + 64,
1935   EL_CUSTOM_START + 65,
1936   EL_CUSTOM_START + 66,
1937   EL_CUSTOM_START + 67,
1938
1939   EL_CUSTOM_START + 68,
1940   EL_CUSTOM_START + 69,
1941   EL_CUSTOM_START + 70,
1942   EL_CUSTOM_START + 71,
1943
1944   EL_CUSTOM_START + 72,
1945   EL_CUSTOM_START + 73,
1946   EL_CUSTOM_START + 74,
1947   EL_CUSTOM_START + 75,
1948
1949   EL_CUSTOM_START + 76,
1950   EL_CUSTOM_START + 77,
1951   EL_CUSTOM_START + 78,
1952   EL_CUSTOM_START + 79,
1953
1954   EL_CUSTOM_START + 80,
1955   EL_CUSTOM_START + 81,
1956   EL_CUSTOM_START + 82,
1957   EL_CUSTOM_START + 83,
1958
1959   EL_CUSTOM_START + 84,
1960   EL_CUSTOM_START + 85,
1961   EL_CUSTOM_START + 86,
1962   EL_CUSTOM_START + 87,
1963
1964   EL_CUSTOM_START + 88,
1965   EL_CUSTOM_START + 89,
1966   EL_CUSTOM_START + 90,
1967   EL_CUSTOM_START + 91,
1968
1969   EL_CUSTOM_START + 92,
1970   EL_CUSTOM_START + 93,
1971   EL_CUSTOM_START + 94,
1972   EL_CUSTOM_START + 95,
1973
1974   EL_CUSTOM_START + 96,
1975   EL_CUSTOM_START + 97,
1976   EL_CUSTOM_START + 98,
1977   EL_CUSTOM_START + 99,
1978
1979   EL_CUSTOM_START + 100,
1980   EL_CUSTOM_START + 101,
1981   EL_CUSTOM_START + 102,
1982   EL_CUSTOM_START + 103,
1983
1984   EL_CUSTOM_START + 104,
1985   EL_CUSTOM_START + 105,
1986   EL_CUSTOM_START + 106,
1987   EL_CUSTOM_START + 107,
1988
1989   EL_CUSTOM_START + 108,
1990   EL_CUSTOM_START + 109,
1991   EL_CUSTOM_START + 110,
1992   EL_CUSTOM_START + 111,
1993
1994   EL_CUSTOM_START + 112,
1995   EL_CUSTOM_START + 113,
1996   EL_CUSTOM_START + 114,
1997   EL_CUSTOM_START + 115,
1998
1999   EL_CUSTOM_START + 116,
2000   EL_CUSTOM_START + 117,
2001   EL_CUSTOM_START + 118,
2002   EL_CUSTOM_START + 119,
2003
2004   EL_CUSTOM_START + 120,
2005   EL_CUSTOM_START + 121,
2006   EL_CUSTOM_START + 122,
2007   EL_CUSTOM_START + 123,
2008
2009   EL_CUSTOM_START + 124,
2010   EL_CUSTOM_START + 125,
2011   EL_CUSTOM_START + 126,
2012   EL_CUSTOM_START + 127
2013 };
2014 static int num_editor_el_custom = SIZEOF_ARRAY_INT(editor_el_custom);
2015
2016 static int *editor_elements = NULL;     /* dynamically allocated */
2017 static int num_editor_elements = 0;     /* dynamically determined */
2018
2019 static struct
2020 {
2021   boolean *setup_value;
2022   int *element_list;
2023   int *element_list_size;
2024
2025   boolean last_setup_value;
2026 }
2027 editor_elements_info[] =
2028 {
2029   { &setup.editor.el_boulderdash,       editor_el_boulderdash,
2030     &num_editor_el_boulderdash                                          },
2031   { &setup.editor.el_emerald_mine,      editor_el_emerald_mine,
2032     &num_editor_el_emerald_mine                                         },
2033   { &setup.editor.el_more,              editor_el_more,
2034     &num_editor_el_more                                                 },
2035   { &setup.editor.el_sokoban,           editor_el_sokoban,
2036     &num_editor_el_sokoban                                              },
2037   { &setup.editor.el_supaplex,          editor_el_supaplex,
2038     &num_editor_el_supaplex                                             },
2039   { &setup.editor.el_diamond_caves,     editor_el_diamond_caves,
2040     &num_editor_el_diamond_caves                                        },
2041   { &setup.editor.el_dx_boulderdash,    editor_el_dx_boulderdash,
2042     &num_editor_el_dx_boulderdash                                       },
2043   { &setup.editor.el_chars,             editor_el_chars,
2044     &num_editor_el_chars                                                },
2045   { &setup.editor.el_custom,            editor_el_custom,
2046     &num_editor_el_custom                                               },
2047   { NULL,                               NULL,
2048     NULL                                                                }
2049 };
2050
2051
2052 /*
2053   -----------------------------------------------------------------------------
2054   functions
2055   -----------------------------------------------------------------------------
2056 */
2057
2058 static void ReinitializeElementList()
2059 {
2060   int pos = 0;
2061   int i, j;
2062
2063   if (editor_elements != NULL)
2064     free(editor_elements);
2065
2066   num_editor_elements = 0;
2067
2068   /* determine size of element list */
2069   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
2070     if (*editor_elements_info[i].setup_value)
2071       num_editor_elements += *editor_elements_info[i].element_list_size;
2072
2073   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
2074   {
2075     /* workaround: offer at least as many elements as element buttons exist */
2076     int list_nr = 1;    /* see above: editor_elements_info for Emerald Mine */
2077
2078     *editor_elements_info[list_nr].setup_value = TRUE;
2079     num_editor_elements += *editor_elements_info[list_nr].element_list_size;
2080   }
2081
2082   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
2083
2084   /* fill element list */
2085   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
2086     if (*editor_elements_info[i].setup_value)
2087       for (j=0; j<*editor_elements_info[i].element_list_size; j++)
2088         editor_elements[pos++] = editor_elements_info[i].element_list[j];
2089 }
2090
2091 static void ReinitializeElementListButtons()
2092 {
2093   static boolean initialization_needed = TRUE;
2094   int i;
2095
2096   if (!initialization_needed)   /* check if editor element setup has changed */
2097     for (i=0; editor_elements_info[i].setup_value != NULL; i++)
2098       if (editor_elements_info[i].last_setup_value !=
2099           *editor_elements_info[i].setup_value)
2100         initialization_needed = TRUE;
2101
2102   if (!initialization_needed)
2103     return;
2104
2105   FreeLevelEditorGadgets();
2106   CreateLevelEditorGadgets();
2107
2108   /* store current setup values for next invocation of this function */
2109   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
2110     editor_elements_info[i].last_setup_value =
2111       *editor_elements_info[i].setup_value;
2112
2113   initialization_needed = FALSE;
2114 }
2115
2116 static int getCounterGadgetWidth()
2117 {
2118   return (DXSIZE + getFontWidth(FONT_INPUT_1) - 2 * ED_GADGET_DISTANCE);
2119 }
2120
2121 static int getMaxInfoTextLength()
2122 {
2123   return (SXSIZE / getFontWidth(FONT_TEXT_2));
2124 }
2125
2126 static char *getElementInfoText(int element)
2127 {
2128   char *info_text = NULL;
2129
2130   if (element < NUM_FILE_ELEMENTS)
2131   {
2132     if (element_info[element].custom_description != NULL)
2133       info_text = element_info[element].custom_description;
2134     else if (element_info[element].editor_description != NULL)
2135       info_text = element_info[element].editor_description;
2136   }
2137
2138   if (info_text == NULL)
2139   {
2140     info_text = "unknown";
2141
2142     Error(ERR_WARN, "no element description for element %d", element);
2143   }
2144
2145   return info_text;
2146 }
2147
2148 static void ScrollMiniLevel(int from_x, int from_y, int scroll)
2149 {
2150   int x,y;
2151   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
2152   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
2153
2154   BlitBitmap(drawto, drawto,
2155              SX + (dx == -1 ? MINI_TILEX : 0),
2156              SY + (dy == -1 ? MINI_TILEY : 0),
2157              (ed_fieldx * MINI_TILEX) - (dx != 0 ? MINI_TILEX : 0),
2158              (ed_fieldy * MINI_TILEY) - (dy != 0 ? MINI_TILEY : 0),
2159              SX + (dx == +1 ? MINI_TILEX : 0),
2160              SY + (dy == +1 ? MINI_TILEY : 0));
2161   if (dx)
2162   {
2163     x = (dx == 1 ? 0 : ed_fieldx - 1);
2164     for(y=0; y<ed_fieldy; y++)
2165       DrawMiniElementOrWall(x, y, from_x, from_y);
2166   }
2167   else if (dy)
2168   {
2169     y = (dy == 1 ? 0 : ed_fieldy - 1);
2170     for(x=0; x<ed_fieldx; x++)
2171       DrawMiniElementOrWall(x, y, from_x, from_y);
2172   }
2173
2174   redraw_mask |= REDRAW_FIELD;
2175   BackToFront();
2176 }
2177
2178 static void CreateControlButtons()
2179 {
2180   Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2181   struct GadgetInfo *gi;
2182   unsigned long event_mask;
2183   int i;
2184
2185   /* create toolbox buttons */
2186   for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
2187   {
2188     int id = i;
2189     int width, height;
2190     int gd_xoffset, gd_yoffset;
2191     int gd_x1, gd_x2, gd_y1, gd_y2;
2192     int button_type;
2193     int radio_button_nr;
2194     boolean checked;
2195
2196     if (id == GADGET_ID_SINGLE_ITEMS ||
2197         id == GADGET_ID_CONNECTED_ITEMS ||
2198         id == GADGET_ID_LINE ||
2199         id == GADGET_ID_ARC ||
2200         id == GADGET_ID_TEXT ||
2201         id == GADGET_ID_RECTANGLE ||
2202         id == GADGET_ID_FILLED_BOX ||
2203         id == GADGET_ID_FLOOD_FILL ||
2204         id == GADGET_ID_GRAB_BRUSH ||
2205         id == GADGET_ID_PICK_ELEMENT)
2206     {
2207       button_type = GD_TYPE_RADIO_BUTTON;
2208       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
2209       checked = (id == drawing_function ? TRUE : FALSE);
2210       event_mask = GD_EVENT_PRESSED;
2211     }
2212     else
2213     {
2214       button_type = GD_TYPE_NORMAL_BUTTON;
2215       radio_button_nr = RADIO_NR_NONE;
2216       checked = FALSE;
2217
2218       if (id == GADGET_ID_WRAP_LEFT ||
2219           id == GADGET_ID_WRAP_RIGHT ||
2220           id == GADGET_ID_WRAP_UP ||
2221           id == GADGET_ID_WRAP_DOWN)
2222         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
2223       else
2224         event_mask = GD_EVENT_RELEASED;
2225     }
2226
2227     if (id < ED_NUM_CTRL1_BUTTONS)
2228     {
2229       int x = i % ED_CTRL1_BUTTONS_HORIZ;
2230       int y = i / ED_CTRL1_BUTTONS_HORIZ;
2231
2232       gd_xoffset = ED_CTRL1_BUTTONS_XPOS + x * ED_CTRL1_BUTTON_XSIZE;
2233       gd_yoffset = ED_CTRL1_BUTTONS_YPOS + y * ED_CTRL1_BUTTON_YSIZE;
2234       width = ED_CTRL1_BUTTON_XSIZE;
2235       height = ED_CTRL1_BUTTON_YSIZE;
2236     }
2237     else
2238     {
2239       int x = (i - ED_NUM_CTRL1_BUTTONS) % ED_CTRL2_BUTTONS_HORIZ;
2240       int y = (i - ED_NUM_CTRL1_BUTTONS) / ED_CTRL2_BUTTONS_HORIZ;
2241
2242       gd_xoffset = ED_CTRL2_BUTTONS_XPOS + x * ED_CTRL2_BUTTON_XSIZE;
2243       gd_yoffset = ED_CTRL2_BUTTONS_YPOS + y * ED_CTRL2_BUTTON_YSIZE;
2244       width = ED_CTRL2_BUTTON_XSIZE;
2245       height = ED_CTRL2_BUTTON_YSIZE;
2246     }
2247
2248     gd_x1 = DOOR_GFX_PAGEX8 + gd_xoffset;
2249     gd_x2 = DOOR_GFX_PAGEX7 + gd_xoffset;
2250     gd_y1  = DOOR_GFX_PAGEY1 + ED_CTRL_BUTTONS_GFX_YPOS + gd_yoffset;
2251     gd_y2  = DOOR_GFX_PAGEY1 + ED_CTRL_BUTTONS_ALT_GFX_YPOS + gd_yoffset;
2252
2253     gi = CreateGadget(GDI_CUSTOM_ID, id,
2254                       GDI_CUSTOM_TYPE_ID, i,
2255                       GDI_INFO_TEXT, control_info[i].text,
2256                       GDI_X, EX + gd_xoffset,
2257                       GDI_Y, EY + gd_yoffset,
2258                       GDI_WIDTH, width,
2259                       GDI_HEIGHT, height,
2260                       GDI_TYPE, button_type,
2261                       GDI_STATE, GD_BUTTON_UNPRESSED,
2262                       GDI_RADIO_NR, radio_button_nr,
2263                       GDI_CHECKED, checked,
2264                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2265                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y1,
2266                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y2,
2267                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
2268                       GDI_EVENT_MASK, event_mask,
2269                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2270                       GDI_CALLBACK_ACTION, HandleControlButtons,
2271                       GDI_END);
2272
2273     if (gi == NULL)
2274       Error(ERR_EXIT, "cannot create gadget");
2275
2276     level_editor_gadget[id] = gi;
2277   }
2278
2279   /* create buttons for scrolling of drawing area and element list */
2280   for (i=0; i<ED_NUM_SCROLLBUTTONS; i++)
2281   {
2282     int id = scrollbutton_info[i].gadget_id;
2283     int x, y, width, height;
2284     int gd_x1, gd_x2, gd_y1, gd_y2;
2285
2286     x = scrollbutton_info[i].x;
2287     y = scrollbutton_info[i].y;
2288
2289     event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
2290
2291     if (id == GADGET_ID_SCROLL_LIST_UP ||
2292         id == GADGET_ID_SCROLL_LIST_DOWN)
2293     {
2294       x += DX;
2295       y += DY;
2296       width = ED_SCROLLBUTTON2_XSIZE;
2297       height = ED_SCROLLBUTTON2_YSIZE;
2298       gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[i].gd_x;
2299       gd_y1 = DOOR_GFX_PAGEY1 + scrollbutton_info[i].gd_y;
2300       gd_x2 = gd_x1 - ED_SCROLLBUTTON2_XSIZE;
2301       gd_y2 = gd_y1;
2302     }
2303     else
2304     {
2305       x += SX;
2306       y += SY;
2307       width = ED_SCROLLBUTTON_XSIZE;
2308       height = ED_SCROLLBUTTON_YSIZE;
2309       gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[i].gd_x;
2310       gd_y1 = DOOR_GFX_PAGEY1 + scrollbutton_info[i].gd_y;
2311       gd_x2 = gd_x1 - ED_SCROLLBUTTON_XSIZE;
2312       gd_y2 = gd_y1;
2313     }
2314
2315     gi = CreateGadget(GDI_CUSTOM_ID, id,
2316                       GDI_CUSTOM_TYPE_ID, i,
2317                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
2318                       GDI_X, x,
2319                       GDI_Y, y,
2320                       GDI_WIDTH, width,
2321                       GDI_HEIGHT, height,
2322                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
2323                       GDI_STATE, GD_BUTTON_UNPRESSED,
2324                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2325                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
2326                       GDI_EVENT_MASK, event_mask,
2327                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2328                       GDI_CALLBACK_ACTION, HandleControlButtons,
2329                       GDI_END);
2330
2331     if (gi == NULL)
2332       Error(ERR_EXIT, "cannot create gadget");
2333
2334     level_editor_gadget[id] = gi;
2335   }
2336
2337   /* create buttons for element list */
2338   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
2339   {
2340     Bitmap *deco_bitmap;
2341     int deco_x, deco_y, deco_xpos, deco_ypos;
2342     int gd_xoffset, gd_yoffset;
2343     int gd_x1, gd_x2, gd_y;
2344     int x = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
2345     int y = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
2346     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
2347     int element = editor_elements[i];
2348
2349     event_mask = GD_EVENT_RELEASED;
2350
2351     gd_xoffset = ED_ELEMENTLIST_XPOS + x * ED_ELEMENTLIST_XSIZE;
2352     gd_yoffset = ED_ELEMENTLIST_YPOS + y * ED_ELEMENTLIST_YSIZE;
2353
2354     gd_x1 = DOOR_GFX_PAGEX6 + ED_ELEMENTLIST_XPOS + ED_ELEMENTLIST_XSIZE;
2355     gd_x2 = DOOR_GFX_PAGEX6 + ED_ELEMENTLIST_XPOS;
2356     gd_y  = DOOR_GFX_PAGEY1 + ED_ELEMENTLIST_YPOS;
2357
2358     getMiniGraphicSource(el2edimg(element), &deco_bitmap, &deco_x, &deco_y);
2359     deco_xpos = (ED_ELEMENTLIST_XSIZE - MINI_TILEX) / 2;
2360     deco_ypos = (ED_ELEMENTLIST_YSIZE - MINI_TILEY) / 2;
2361
2362     gi = CreateGadget(GDI_CUSTOM_ID, id,
2363                       GDI_CUSTOM_TYPE_ID, i,
2364                       GDI_INFO_TEXT, getElementInfoText(element),
2365                       GDI_X, DX + gd_xoffset,
2366                       GDI_Y, DY + gd_yoffset,
2367                       GDI_WIDTH, ED_ELEMENTLIST_XSIZE,
2368                       GDI_HEIGHT, ED_ELEMENTLIST_YSIZE,
2369                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
2370                       GDI_STATE, GD_BUTTON_UNPRESSED,
2371                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2372                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2373                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
2374                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
2375                       GDI_DECORATION_SIZE, MINI_TILEX, MINI_TILEY,
2376                       GDI_DECORATION_SHIFTING, 1, 1,
2377                       GDI_EVENT_MASK, event_mask,
2378                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2379                       GDI_CALLBACK_ACTION, HandleControlButtons,
2380                       GDI_END);
2381
2382     if (gi == NULL)
2383       Error(ERR_EXIT, "cannot create gadget");
2384
2385     level_editor_gadget[id] = gi;
2386   }
2387 }
2388
2389 static void CreateCounterButtons()
2390 {
2391   int max_infotext_len = getMaxInfoTextLength();
2392   int i;
2393
2394   for (i=0; i<ED_NUM_COUNTERBUTTONS; i++)
2395   {
2396     int j;
2397     int xpos = SX + counterbutton_info[i].x;    /* xpos of down count button */
2398     int ypos = SY + counterbutton_info[i].y;
2399     int xoffset = 0;
2400
2401     /* determine horizontal offset for leading counter text */
2402     if (counterbutton_info[i].text_left != NULL)
2403       xoffset = (getFontWidth(FONT_TEXT_1) *
2404                  strlen(counterbutton_info[i].text_left) +
2405                  2 * ED_GADGET_DISTANCE);
2406
2407     for (j=0; j<2; j++)
2408     {
2409       Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2410       struct GadgetInfo *gi;
2411       int id = (j == 0 ?
2412                 counterbutton_info[i].gadget_id_down :
2413                 counterbutton_info[i].gadget_id_up);
2414       int gd_xoffset;
2415       int gd_x, gd_x1, gd_x2, gd_y;
2416       int x_size, y_size;
2417       unsigned long event_mask;
2418       char infotext[max_infotext_len + 1];
2419
2420       event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
2421
2422       if (i == ED_COUNTER_ID_SELECT_LEVEL)
2423       {
2424         int sid = (j == 0 ?
2425                    ED_SCROLLBUTTON_ID_AREA_LEFT :
2426                    ED_SCROLLBUTTON_ID_AREA_RIGHT);
2427
2428         event_mask |= GD_EVENT_RELEASED;
2429
2430         if (j == 1)
2431           xpos += 2 * ED_GADGET_DISTANCE;
2432         ypos += ED_GADGET_DISTANCE;
2433
2434         gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[sid].gd_x;
2435         gd_x2 = gd_x1 - ED_SCROLLBUTTON_XSIZE;
2436         gd_y  = DOOR_GFX_PAGEY1 + scrollbutton_info[sid].gd_y;
2437         x_size = ED_SCROLLBUTTON_XSIZE;
2438         y_size = ED_SCROLLBUTTON_YSIZE;
2439       }
2440       else
2441       {
2442         gd_xoffset = (j == 0 ? ED_BUTTON_MINUS_XPOS : ED_BUTTON_PLUS_XPOS);
2443         gd_x1 = DOOR_GFX_PAGEX4 + gd_xoffset;
2444         gd_x2 = DOOR_GFX_PAGEX3 + gd_xoffset;
2445         gd_y  = DOOR_GFX_PAGEY1 + ED_BUTTON_COUNT_YPOS;
2446         x_size = ED_BUTTON_COUNT_XSIZE;
2447         y_size = ED_BUTTON_COUNT_YSIZE;
2448       }
2449
2450       sprintf(infotext, "%s counter value by 1, 5 or 10",
2451               (j == 0 ? "decrease" : "increase"));
2452
2453       gi = CreateGadget(GDI_CUSTOM_ID, id,
2454                         GDI_CUSTOM_TYPE_ID, i,
2455                         GDI_INFO_TEXT, infotext,
2456                         GDI_X, xpos + xoffset,
2457                         GDI_Y, ypos,
2458                         GDI_WIDTH, x_size,
2459                         GDI_HEIGHT, y_size,
2460                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
2461                         GDI_STATE, GD_BUTTON_UNPRESSED,
2462                         GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2463                         GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2464                         GDI_EVENT_MASK, event_mask,
2465                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2466                         GDI_CALLBACK_ACTION, HandleCounterButtons,
2467                         GDI_END);
2468
2469       if (gi == NULL)
2470         Error(ERR_EXIT, "cannot create gadget");
2471
2472       level_editor_gadget[id] = gi;
2473       xpos += gi->width + ED_GADGET_DISTANCE;   /* xpos of text count button */
2474
2475       if (j == 0)
2476       {
2477         int font_type = FONT_INPUT_1;
2478         int font_type_active = FONT_INPUT_1_ACTIVE;
2479         int gd_width = ED_WIN_COUNT_XSIZE;
2480
2481         id = counterbutton_info[i].gadget_id_text;
2482         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
2483
2484         if (i == ED_COUNTER_ID_SELECT_LEVEL)
2485         {
2486           font_type = FONT_LEVEL_NUMBER;
2487           font_type_active = FONT_LEVEL_NUMBER;
2488
2489           xpos += 2 * ED_GADGET_DISTANCE;
2490           ypos -= ED_GADGET_DISTANCE;
2491
2492           gd_x = DOOR_GFX_PAGEX6 + ED_WIN_COUNT2_XPOS;
2493           gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT2_YPOS;
2494           gd_width = ED_WIN_COUNT2_XSIZE;
2495         }
2496         else
2497         {
2498           gd_x = DOOR_GFX_PAGEX4 + ED_WIN_COUNT_XPOS;
2499           gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT_YPOS;
2500         }
2501
2502         gi = CreateGadget(GDI_CUSTOM_ID, id,
2503                           GDI_CUSTOM_TYPE_ID, i,
2504                           GDI_INFO_TEXT, "enter counter value",
2505                           GDI_X, xpos + xoffset,
2506                           GDI_Y, ypos,
2507                           GDI_TYPE, GD_TYPE_TEXTINPUT_NUMERIC,
2508                           GDI_NUMBER_VALUE, 0,
2509                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
2510                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
2511                           GDI_TEXT_SIZE, 3,
2512                           GDI_TEXT_FONT, font_type,
2513                           GDI_TEXT_FONT_ACTIVE, font_type_active,
2514                           GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
2515                           GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
2516                           GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
2517                           GDI_DESIGN_WIDTH, gd_width,
2518                           GDI_EVENT_MASK, event_mask,
2519                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2520                           GDI_CALLBACK_ACTION, HandleCounterButtons,
2521                           GDI_END);
2522
2523         if (gi == NULL)
2524           Error(ERR_EXIT, "cannot create gadget");
2525
2526         level_editor_gadget[id] = gi;
2527         xpos += gi->width + ED_GADGET_DISTANCE; /* xpos of up count button */
2528       }
2529     }
2530   }
2531 }
2532
2533 static void CreateDrawingAreas()
2534 {
2535   struct GadgetInfo *gi;
2536   unsigned long event_mask;
2537   int id;
2538   int i;
2539
2540   event_mask =
2541     GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
2542     GD_EVENT_OFF_BORDERS;
2543
2544   /* one for the level drawing area ... */
2545   id = GADGET_ID_DRAWING_LEVEL;
2546   gi = CreateGadget(GDI_CUSTOM_ID, id,
2547                     GDI_X, SX,
2548                     GDI_Y, SY,
2549                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2550                     GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
2551                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2552                     GDI_EVENT_MASK, event_mask,
2553                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2554                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2555                     GDI_END);
2556
2557   if (gi == NULL)
2558     Error(ERR_EXIT, "cannot create gadget");
2559
2560   level_editor_gadget[id] = gi;
2561
2562   /* ... up to eight areas for element content ... */
2563   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
2564   {
2565     int gx = SX + ED_AREA_ELEM_CONTENT_XPOS + 5 * (i % 4) * MINI_TILEX;
2566     int gy = SX + ED_AREA_ELEM_CONTENT_YPOS + 6 * (i / 4) * MINI_TILEY;
2567
2568     id = GADGET_ID_ELEMENT_CONTENT_0 + i;
2569     gi = CreateGadget(GDI_CUSTOM_ID, id,
2570                       GDI_CUSTOM_TYPE_ID, i,
2571                       GDI_X, gx,
2572                       GDI_Y, gy,
2573                       GDI_WIDTH, 3 * MINI_TILEX,
2574                       GDI_HEIGHT, 3 * MINI_TILEY,
2575                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
2576                       GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2577                       GDI_EVENT_MASK, event_mask,
2578                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2579                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
2580                       GDI_END);
2581
2582     if (gi == NULL)
2583       Error(ERR_EXIT, "cannot create gadget");
2584
2585     level_editor_gadget[id] = gi;
2586   }
2587
2588   /* ... one for the amoeba content ... */
2589   id = GADGET_ID_AMOEBA_CONTENT;
2590   gi = CreateGadget(GDI_CUSTOM_ID, id,
2591                     GDI_X, SX + ED_AREA_ELEM_CONTENT_XPOS,
2592                     GDI_Y, SY + ED_AREA_ELEM_CONTENT_YPOS,
2593                     GDI_WIDTH, MINI_TILEX,
2594                     GDI_HEIGHT, MINI_TILEY,
2595                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2596                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2597                     GDI_EVENT_MASK, event_mask,
2598                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2599                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2600                     GDI_END);
2601
2602   if (gi == NULL)
2603     Error(ERR_EXIT, "cannot create gadget");
2604
2605   level_editor_gadget[id] = gi;
2606
2607   /* ... one for each custom element optional graphic element ... */
2608   id = GADGET_ID_CUSTOM_GRAPHIC;
2609   gi = CreateGadget(GDI_CUSTOM_ID, id,
2610                     GDI_X, SX + ED_AREA_ELEM_CONTENT3_XPOS,
2611                     GDI_Y, SY + ED_AREA_ELEM_CONTENT3_YPOS,
2612                     GDI_WIDTH, MINI_TILEX,
2613                     GDI_HEIGHT, MINI_TILEY,
2614                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2615                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2616                     GDI_EVENT_MASK, event_mask,
2617                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2618                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2619                     GDI_END);
2620
2621   if (gi == NULL)
2622     Error(ERR_EXIT, "cannot create gadget");
2623
2624   level_editor_gadget[id] = gi;
2625
2626   /* ... one areas for custom element explosion content ... */
2627   id = GADGET_ID_CUSTOM_CONTENT;
2628   gi = CreateGadget(GDI_CUSTOM_ID, id,
2629                     GDI_CUSTOM_TYPE_ID, i,
2630                     GDI_X, SX + ED_AREA_ELEM_CONTENT4_XPOS,
2631                     GDI_Y, SX + ED_AREA_ELEM_CONTENT4_YPOS,
2632                     GDI_WIDTH, 3 * MINI_TILEX,
2633                     GDI_HEIGHT, 3 * MINI_TILEY,
2634                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2635                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2636                     GDI_EVENT_MASK, event_mask,
2637                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2638                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2639                     GDI_END);
2640
2641   if (gi == NULL)
2642     Error(ERR_EXIT, "cannot create gadget");
2643
2644   level_editor_gadget[id] = gi;
2645
2646   /* ... one for each custom element change target element ... */
2647   id = GADGET_ID_CUSTOM_CHANGED;
2648   gi = CreateGadget(GDI_CUSTOM_ID, id,
2649                     GDI_X, SX + ED_AREA_ELEM_CONTENT2_XPOS,
2650                     GDI_Y, SY + ED_AREA_ELEM_CONTENT2_YPOS,
2651                     GDI_WIDTH, MINI_TILEX,
2652                     GDI_HEIGHT, MINI_TILEY,
2653                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2654                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2655                     GDI_EVENT_MASK, event_mask,
2656                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2657                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2658                     GDI_END);
2659
2660   if (gi == NULL)
2661     Error(ERR_EXIT, "cannot create gadget");
2662
2663   level_editor_gadget[id] = gi;
2664
2665   /* ... and one for random placement background restrictions */
2666
2667   id = GADGET_ID_RANDOM_BACKGROUND;
2668   gi = CreateGadget(GDI_CUSTOM_ID, id,
2669                     GDI_X, SX + ED_AREA_RANDOM_BACKGROUND_XPOS,
2670                     GDI_Y, SY + ED_AREA_RANDOM_BACKGROUND_YPOS,
2671                     GDI_WIDTH, MINI_TILEX,
2672                     GDI_HEIGHT, MINI_TILEY,
2673                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2674                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2675                     GDI_EVENT_MASK, event_mask,
2676                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2677                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2678                     GDI_END);
2679
2680   if (gi == NULL)
2681     Error(ERR_EXIT, "cannot create gadget");
2682
2683   level_editor_gadget[id] = gi;
2684 }
2685
2686 static void CreateTextInputGadgets()
2687 {
2688   int max_infotext_len = getMaxInfoTextLength();
2689   int i;
2690
2691   for (i=0; i<ED_NUM_TEXTINPUT; i++)
2692   {
2693     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2694     int gd_x, gd_y;
2695     struct GadgetInfo *gi;
2696     unsigned long event_mask;
2697     char infotext[MAX_OUTPUT_LINESIZE + 1];
2698     int id = textinput_info[i].gadget_id;
2699
2700     event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
2701
2702     gd_x = DOOR_GFX_PAGEX4 + ED_WIN_COUNT_XPOS;
2703     gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT_YPOS;
2704
2705     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
2706     infotext[max_infotext_len] = '\0';
2707
2708     gi = CreateGadget(GDI_CUSTOM_ID, id,
2709                       GDI_CUSTOM_TYPE_ID, i,
2710                       GDI_INFO_TEXT, infotext,
2711                       GDI_X, SX + textinput_info[i].x,
2712                       GDI_Y, SY + textinput_info[i].y,
2713                       GDI_TYPE, GD_TYPE_TEXTINPUT_ALPHANUMERIC,
2714                       GDI_TEXT_VALUE, textinput_info[i].value,
2715                       GDI_TEXT_SIZE, textinput_info[i].size,
2716                       GDI_TEXT_FONT, FONT_INPUT_1,
2717                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
2718                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
2719                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
2720                       GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
2721                       GDI_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
2722                       GDI_EVENT_MASK, event_mask,
2723                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2724                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
2725                       GDI_END);
2726
2727     if (gi == NULL)
2728       Error(ERR_EXIT, "cannot create gadget");
2729
2730     level_editor_gadget[id] = gi;
2731   }
2732 }
2733
2734 static void CreateSelectboxGadgets()
2735 {
2736   int max_infotext_len = getMaxInfoTextLength();
2737   int i, j;
2738
2739   for (i=0; i<ED_NUM_SELECTBOX; i++)
2740   {
2741     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2742     int gd_x, gd_y;
2743     int xoffset = 0;
2744     struct GadgetInfo *gi;
2745     unsigned long event_mask;
2746     char infotext[MAX_OUTPUT_LINESIZE + 1];
2747     int id = selectbox_info[i].gadget_id;
2748
2749     if (selectbox_info[i].size == -1)   /* dynamically determine size */
2750     {
2751       /* (we cannot use -1 for uninitialized values if we directly compare
2752          with results from strlen(), because the '<' and '>' operation will
2753          implicitely cast -1 to an unsigned integer value!) */
2754       selectbox_info[i].size = 0;
2755
2756       for (j=0; selectbox_info[i].options[j].text != NULL; j++)
2757         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
2758           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
2759
2760       selectbox_info[i].size++;         /* add one character empty space */
2761     }
2762
2763     event_mask = GD_EVENT_RELEASED |
2764       GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
2765
2766     gd_x = DOOR_GFX_PAGEX4 + ED_SELECTBOX_XPOS;
2767     gd_y = DOOR_GFX_PAGEY1 + ED_SELECTBOX_YPOS;
2768
2769     /* determine horizontal offset for leading selectbox text */
2770     if (selectbox_info[i].text_left != NULL)
2771       xoffset = (getFontWidth(FONT_TEXT_1) *
2772                  strlen(selectbox_info[i].text_left) +
2773                  2 * ED_GADGET_DISTANCE);
2774
2775     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
2776     infotext[max_infotext_len] = '\0';
2777
2778     gi = CreateGadget(GDI_CUSTOM_ID, id,
2779                       GDI_CUSTOM_TYPE_ID, i,
2780                       GDI_INFO_TEXT, infotext,
2781                       GDI_X, SX + selectbox_info[i].x + xoffset,
2782                       GDI_Y, SY + selectbox_info[i].y,
2783                       GDI_TYPE, GD_TYPE_SELECTBOX,
2784                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
2785                       GDI_SELECTBOX_INDEX, selectbox_info[i].index,
2786                       GDI_TEXT_SIZE, selectbox_info[i].size,
2787                       GDI_TEXT_FONT, FONT_INPUT_1,
2788                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
2789                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
2790                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
2791                       GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
2792                       GDI_BORDER_SIZE_SELECTBUTTON, getFontWidth(FONT_INPUT_1),
2793                       GDI_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
2794                       GDI_EVENT_MASK, event_mask,
2795                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2796                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
2797                       GDI_END);
2798
2799     if (gi == NULL)
2800       Error(ERR_EXIT, "cannot create gadget");
2801
2802     level_editor_gadget[id] = gi;
2803   }
2804 }
2805
2806 static void CreateTextbuttonGadgets()
2807 {
2808   int max_infotext_len = getMaxInfoTextLength();
2809   int i;
2810
2811   for (i=0; i<ED_NUM_TEXTBUTTON; i++)
2812   {
2813     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2814     int gd_x1, gd_x2, gd_y1, gd_y2;
2815     struct GadgetInfo *gi;
2816     unsigned long event_mask;
2817     char infotext[MAX_OUTPUT_LINESIZE + 1];
2818     int id = textbutton_info[i].gadget_id;
2819
2820     if (textbutton_info[i].size == -1)  /* dynamically determine size */
2821       textbutton_info[i].size = strlen(textbutton_info[i].text);
2822
2823     event_mask = GD_EVENT_RELEASED;
2824
2825     if (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_ADVANCED)
2826     {
2827       gd_x1 = DOOR_GFX_PAGEX4 + ED_TEXTBUTTON_TAB_XPOS;
2828       gd_x2 = DOOR_GFX_PAGEX3 + ED_TEXTBUTTON_TAB_XPOS;
2829       gd_y1 = DOOR_GFX_PAGEY1 + ED_TEXTBUTTON_TAB_YPOS;
2830       gd_y2 = DOOR_GFX_PAGEY1 + ED_TEXTBUTTON_TAB_INACTIVE_YPOS;
2831     }
2832     else
2833     {
2834       gd_x1 = DOOR_GFX_PAGEX4 + ED_TEXTBUTTON_XPOS;
2835       gd_x2 = DOOR_GFX_PAGEX3 + ED_TEXTBUTTON_XPOS;
2836       gd_y1 = DOOR_GFX_PAGEY1 + ED_TEXTBUTTON_YPOS;
2837       gd_y2 = DOOR_GFX_PAGEY1 + ED_TEXTBUTTON_INACTIVE_YPOS;
2838     }
2839
2840     sprintf(infotext, "%s", textbutton_info[i].infotext);
2841     infotext[max_infotext_len] = '\0';
2842
2843     gi = CreateGadget(GDI_CUSTOM_ID, id,
2844                       GDI_CUSTOM_TYPE_ID, i,
2845                       GDI_INFO_TEXT, infotext,
2846                       GDI_X, SX + textbutton_info[i].x,
2847                       GDI_Y, SY + textbutton_info[i].y,
2848                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
2849                       GDI_TEXT_VALUE, textbutton_info[i].text,
2850                       GDI_TEXT_SIZE, textbutton_info[i].size,
2851                       GDI_TEXT_FONT, FONT_INPUT_2_ACTIVE,
2852                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2,
2853                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2854                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y1,
2855                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y2,
2856                       GDI_BORDER_SIZE, ED_BORDER2_SIZE, ED_BORDER_SIZE,
2857                       GDI_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
2858                       GDI_DECORATION_SHIFTING, 1, 1,
2859                       GDI_EVENT_MASK, event_mask,
2860                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2861                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
2862                       GDI_END);
2863
2864     if (gi == NULL)
2865       Error(ERR_EXIT, "cannot create gadget");
2866
2867     level_editor_gadget[id] = gi;
2868   }
2869 }
2870
2871 static void CreateScrollbarGadgets()
2872 {
2873   int i;
2874
2875   for (i=0; i<ED_NUM_SCROLLBARS; i++)
2876   {
2877     int id = scrollbar_info[i].gadget_id;
2878     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2879     int gd_x1, gd_x2, gd_y1, gd_y2;
2880     struct GadgetInfo *gi;
2881     int items_max, items_visible, item_position;
2882     unsigned long event_mask;
2883
2884     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
2885     {
2886       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
2887       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
2888       item_position = 0;
2889     }
2890     else        /* drawing area scrollbars */
2891     {
2892       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
2893       {
2894         items_max = MAX(lev_fieldx + 2, ed_fieldx);
2895         items_visible = ed_fieldx;
2896         item_position = 0;
2897       }
2898       else
2899       {
2900         items_max = MAX(lev_fieldy + 2, ed_fieldy);
2901         items_visible = ed_fieldy;
2902         item_position = 0;
2903       }
2904     }
2905
2906     event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
2907
2908     gd_x1 = DOOR_GFX_PAGEX8 + scrollbar_info[i].gd_x;
2909     gd_x2 = (gd_x1 - (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL ?
2910                       scrollbar_info[i].height : scrollbar_info[i].width));
2911     gd_y1 = DOOR_GFX_PAGEY1 + scrollbar_info[i].gd_y;
2912     gd_y2 = DOOR_GFX_PAGEY1 + scrollbar_info[i].gd_y;
2913
2914     gi = CreateGadget(GDI_CUSTOM_ID, id,
2915                       GDI_CUSTOM_TYPE_ID, i,
2916                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
2917                       GDI_X, scrollbar_info[i].x,
2918                       GDI_Y, scrollbar_info[i].y,
2919                       GDI_WIDTH, scrollbar_info[i].width,
2920                       GDI_HEIGHT, scrollbar_info[i].height,
2921                       GDI_TYPE, scrollbar_info[i].type,
2922                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
2923                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
2924                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
2925                       GDI_STATE, GD_BUTTON_UNPRESSED,
2926                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2927                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
2928                       GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
2929                       GDI_EVENT_MASK, event_mask,
2930                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2931                       GDI_CALLBACK_ACTION, HandleControlButtons,
2932                       GDI_END);
2933
2934     if (gi == NULL)
2935       Error(ERR_EXIT, "cannot create gadget");
2936
2937     level_editor_gadget[id] = gi;
2938   }
2939 }
2940
2941 static void CreateCheckbuttonGadgets()
2942 {
2943   Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2944   struct GadgetInfo *gi;
2945   unsigned long event_mask;
2946   int gd_x1, gd_x2, gd_x3, gd_x4, gd_y;
2947   boolean checked;
2948   int i;
2949
2950   event_mask = GD_EVENT_PRESSED;
2951
2952   gd_x1 = DOOR_GFX_PAGEX4 + ED_CHECKBUTTON_UNCHECKED_XPOS;
2953   gd_x2 = DOOR_GFX_PAGEX3 + ED_CHECKBUTTON_UNCHECKED_XPOS;
2954   gd_x3 = DOOR_GFX_PAGEX4 + ED_CHECKBUTTON_CHECKED_XPOS;
2955   gd_x4 = DOOR_GFX_PAGEX3 + ED_CHECKBUTTON_CHECKED_XPOS;
2956   gd_y  = DOOR_GFX_PAGEY1 + ED_RADIOBUTTON_YPOS;
2957
2958   for (i=0; i<ED_NUM_RADIOBUTTONS; i++)
2959   {
2960     int id = radiobutton_info[i].gadget_id;
2961
2962     checked =
2963       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
2964
2965     gi = CreateGadget(GDI_CUSTOM_ID, id,
2966                       GDI_CUSTOM_TYPE_ID, i,
2967                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
2968                       GDI_X, SX + radiobutton_info[i].x,
2969                       GDI_Y, SY + radiobutton_info[i].y,
2970                       GDI_WIDTH, ED_CHECKBUTTON_XSIZE,
2971                       GDI_HEIGHT, ED_CHECKBUTTON_YSIZE,
2972                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
2973                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
2974                       GDI_CHECKED, checked,
2975                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2976                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2977                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x3, gd_y,
2978                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x4, gd_y,
2979                       GDI_EVENT_MASK, event_mask,
2980                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2981                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
2982                       GDI_END);
2983
2984     if (gi == NULL)
2985       Error(ERR_EXIT, "cannot create gadget");
2986
2987     level_editor_gadget[id] = gi;
2988   }
2989
2990   for (i=0; i<ED_NUM_CHECKBUTTONS; i++)
2991   {
2992     int id = checkbutton_info[i].gadget_id;
2993
2994     if (id == GADGET_ID_STICK_ELEMENT)
2995       gd_y  = DOOR_GFX_PAGEY1 + ED_STICKYBUTTON_YPOS;
2996     else
2997       gd_y  = DOOR_GFX_PAGEY1 + ED_CHECKBUTTON_YPOS;
2998
2999     gi = CreateGadget(GDI_CUSTOM_ID, id,
3000                       GDI_CUSTOM_TYPE_ID, i,
3001                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
3002                       GDI_X, SX + checkbutton_info[i].x,
3003                       GDI_Y, SY + checkbutton_info[i].y,
3004                       GDI_WIDTH, ED_CHECKBUTTON_XSIZE,
3005                       GDI_HEIGHT, ED_CHECKBUTTON_YSIZE,
3006                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
3007                       GDI_CHECKED, *checkbutton_info[i].value,
3008                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
3009                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
3010                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x3, gd_y,
3011                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x4, gd_y,
3012                       GDI_EVENT_MASK, event_mask,
3013                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
3014                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
3015                       GDI_END);
3016
3017     if (gi == NULL)
3018       Error(ERR_EXIT, "cannot create gadget");
3019
3020     level_editor_gadget[id] = gi;
3021   }
3022 }
3023
3024 void CreateLevelEditorGadgets()
3025 {
3026   int old_game_status = game_status;
3027
3028   /* setting 'game_status' is needed to get the right fonts for the editor */
3029   game_status = GAME_MODE_EDITOR;
3030
3031   ReinitializeElementList();
3032
3033   CreateControlButtons();
3034   CreateCounterButtons();
3035   CreateDrawingAreas();
3036   CreateTextInputGadgets();
3037   CreateSelectboxGadgets();
3038   CreateTextbuttonGadgets();
3039   CreateScrollbarGadgets();
3040   CreateCheckbuttonGadgets();
3041
3042   game_status = old_game_status;
3043 }
3044
3045 void FreeLevelEditorGadgets()
3046 {
3047   int i;
3048
3049   for (i=0; i<NUM_EDITOR_GADGETS; i++)
3050     FreeGadget(level_editor_gadget[i]);
3051 }
3052
3053 static void MapCounterButtons(int id)
3054 {
3055   char infotext[MAX_OUTPUT_LINESIZE + 1];
3056   int max_infotext_len = getMaxInfoTextLength();
3057   int xoffset_above = 0;
3058   int yoffset_above = -(MINI_TILEX + ED_GADGET_DISTANCE);
3059   int xoffset_left = 0;
3060   int yoffset_left = ED_BORDER_SIZE;
3061   int xoffset_right = getCounterGadgetWidth();
3062   int yoffset_right = ED_BORDER_SIZE;
3063   int x, y;
3064
3065   if (counterbutton_info[id].text_above)
3066   {
3067     x = SX + counterbutton_info[id].x + xoffset_above;
3068     y = SY + counterbutton_info[id].y + yoffset_above;
3069
3070     sprintf(infotext, "%s:", counterbutton_info[id].text_above);
3071     infotext[max_infotext_len] = '\0';
3072     DrawText(x, y, infotext, FONT_TEXT_1);
3073   }
3074
3075   if (counterbutton_info[id].text_left)
3076   {
3077     x = SX + counterbutton_info[id].x + xoffset_left;
3078     y = SY + counterbutton_info[id].y + yoffset_left;
3079
3080     sprintf(infotext, "%s", counterbutton_info[id].text_left);
3081     infotext[max_infotext_len] = '\0';
3082     DrawText(x, y, infotext, FONT_TEXT_1);
3083   }
3084
3085   if (counterbutton_info[id].text_right)
3086   {
3087     int gadget_id = counterbutton_info[id].gadget_id_down;
3088
3089     x = level_editor_gadget[gadget_id]->x + xoffset_right;
3090     y = SY + counterbutton_info[id].y + yoffset_right;
3091
3092     sprintf(infotext, "%s", counterbutton_info[id].text_right);
3093     infotext[max_infotext_len] = '\0';
3094     DrawText(x, y, infotext, FONT_TEXT_1);
3095   }
3096
3097   ModifyEditorCounter(id, *counterbutton_info[id].value);
3098
3099   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_down]);
3100   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_text]);
3101   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_up]);
3102 }
3103
3104 static void MapControlButtons()
3105 {
3106   int counter_id;
3107   int i;
3108
3109   /* map toolbox buttons */
3110   for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
3111     MapGadget(level_editor_gadget[i]);
3112
3113   /* map buttons to select elements */
3114   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
3115     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
3116   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
3117   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
3118   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
3119
3120   /* map buttons to select level */
3121   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
3122   ModifyEditorCounterLimits(counter_id,
3123                             leveldir_current->first_level,
3124                             leveldir_current->last_level);
3125   MapCounterButtons(counter_id);
3126 }
3127
3128 static void MapDrawingArea(int id)
3129 {
3130   MapGadget(level_editor_gadget[id]);
3131 }
3132
3133 static void MapTextInputGadget(int id)
3134 {
3135   char infotext[MAX_OUTPUT_LINESIZE + 1];
3136   int max_infotext_len = getMaxInfoTextLength();
3137   int xoffset_above = 0;
3138   int yoffset_above = -(MINI_TILEX + ED_GADGET_DISTANCE);
3139   int x = textinput_info[id].x + xoffset_above;
3140   int y = textinput_info[id].y + yoffset_above;
3141
3142   sprintf(infotext, "%s:", textinput_info[id].infotext);
3143   infotext[max_infotext_len] = '\0';
3144   DrawTextF(x, y, FONT_TEXT_1, infotext);
3145
3146   ModifyGadget(level_editor_gadget[textinput_info[id].gadget_id],
3147                GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
3148
3149   MapGadget(level_editor_gadget[textinput_info[id].gadget_id]);
3150 }
3151
3152 static void MapSelectboxGadget(int id)
3153 {
3154   int xoffset_left = 0;
3155   int yoffset_left = ED_BORDER_SIZE;
3156   int xoffset_right = ED_BORDER_SIZE;
3157   int yoffset_right = ED_BORDER_SIZE;
3158   int x = selectbox_info[id].x + xoffset_left;
3159   int y = selectbox_info[id].y + yoffset_left;
3160
3161   DrawTextF(x, y, FONT_TEXT_1, selectbox_info[id].text_left);
3162
3163   if (selectbox_info[id].text_right)
3164   {
3165     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
3166
3167     x = gi->x + gi->width + xoffset_right;
3168     y = SY + selectbox_info[id].y + yoffset_right;
3169
3170     DrawText(x, y, selectbox_info[id].text_right, FONT_TEXT_1);
3171   }
3172
3173   ModifyEditorSelectbox(id, *selectbox_info[id].value);
3174
3175   MapGadget(level_editor_gadget[selectbox_info[id].gadget_id]);
3176 }
3177
3178 static void MapTextbuttonGadget(int id)
3179 {
3180   MapGadget(level_editor_gadget[textbutton_info[id].gadget_id]);
3181 }
3182
3183 static void MapRadiobuttonGadget(int id)
3184 {
3185   int xoffset_right = ED_XOFFSET_CHECKBOX;
3186   int yoffset_right = ED_BORDER_SIZE;
3187   int x = radiobutton_info[id].x + xoffset_right;
3188   int y = radiobutton_info[id].y + yoffset_right;
3189   boolean checked =
3190     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
3191
3192   DrawTextF(x, y, FONT_TEXT_1, radiobutton_info[id].text_right);
3193   ModifyGadget(level_editor_gadget[radiobutton_info[id].gadget_id],
3194                GDI_CHECKED, checked, GDI_END);
3195
3196   MapGadget(level_editor_gadget[radiobutton_info[id].gadget_id]);
3197 }
3198
3199 static void MapCheckbuttonGadget(int id)
3200 {
3201   int xoffset_right = ED_XOFFSET_CHECKBOX;
3202   int yoffset_right = ED_BORDER_SIZE;
3203   int x = checkbutton_info[id].x + xoffset_right;
3204   int y = checkbutton_info[id].y + yoffset_right;
3205
3206   DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[id].text_right);
3207   ModifyGadget(level_editor_gadget[checkbutton_info[id].gadget_id],
3208                GDI_CHECKED, *checkbutton_info[id].value,
3209                GDI_Y, SY + checkbutton_info[id].y, GDI_END);
3210
3211   MapGadget(level_editor_gadget[checkbutton_info[id].gadget_id]);
3212 }
3213
3214 static void MapMainDrawingArea()
3215 {
3216   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
3217   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
3218   int i;
3219
3220   for (i=ED_SCROLLBUTTON_ID_AREA_FIRST; i<=ED_SCROLLBUTTON_ID_AREA_LAST; i++)
3221   {
3222     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
3223           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
3224          no_horizontal_scrollbar) ||
3225         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
3226           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
3227          no_vertical_scrollbar))
3228       continue;
3229
3230     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
3231   }
3232
3233   for (i=ED_SCROLLBAR_ID_AREA_FIRST; i<=ED_SCROLLBAR_ID_AREA_LAST; i++)
3234   {
3235     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
3236         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
3237       continue;
3238
3239     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
3240   }
3241
3242   MapDrawingArea(GADGET_ID_DRAWING_LEVEL);
3243 }
3244
3245 static void UnmapDrawingArea(int id)
3246 {
3247   UnmapGadget(level_editor_gadget[id]);
3248 }
3249
3250 void UnmapLevelEditorWindowGadgets()
3251 {
3252   int i;
3253
3254   for (i=0; i<NUM_EDITOR_GADGETS; i++)
3255     if (level_editor_gadget[i]->x < SX + SXSIZE)
3256       UnmapGadget(level_editor_gadget[i]);
3257 }
3258
3259 void UnmapLevelEditorGadgets()
3260 {
3261   int i;
3262
3263   for (i=0; i<NUM_EDITOR_GADGETS; i++)
3264     UnmapGadget(level_editor_gadget[i]);
3265 }
3266
3267 static void ResetUndoBuffer()
3268 {
3269   undo_buffer_position = -1;
3270   undo_buffer_steps = -1;
3271   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3272 }
3273
3274 static void DrawEditModeWindow()
3275 {
3276   if (edit_mode == ED_MODE_INFO)
3277     DrawLevelInfoWindow();
3278   else if (edit_mode == ED_MODE_PROPERTIES)
3279     DrawPropertiesWindow();
3280   else  /* edit_mode == ED_MODE_DRAWING */
3281     DrawDrawingWindow();
3282 }
3283
3284 static boolean LevelChanged()
3285 {
3286   boolean level_changed = FALSE;
3287   int x, y;
3288
3289   for(y=0; y<lev_fieldy; y++)
3290     for(x=0; x<lev_fieldx; x++)
3291       if (Feld[x][y] != Ur[x][y])
3292         level_changed = TRUE;
3293
3294   return level_changed;
3295 }
3296
3297 static boolean LevelContainsPlayer()
3298 {
3299   boolean player_found = FALSE;
3300   int x, y;
3301
3302   for(y=0; y<lev_fieldy; y++)
3303     for(x=0; x<lev_fieldx; x++)
3304       if (Feld[x][y] == EL_PLAYER_1 ||
3305           Feld[x][y] == EL_SP_MURPHY)
3306         player_found = TRUE;
3307
3308   return player_found;
3309 }
3310
3311 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
3312                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
3313 {
3314   int x, y;
3315
3316   for(x=0; x<lev_fieldx; x++)
3317     for(y=0; y<lev_fieldy; y++)
3318       dst[x][y] = src[x][y];
3319 }
3320
3321 static void CopyCustomElementPropertiesToEditor(int element)
3322 {
3323   int i;
3324
3325   custom_element = element_info[properties_element];
3326
3327   for (i=0; i < NUM_ELEMENT_PROPERTIES; i++)
3328     custom_element_properties[i] = HAS_PROPERTY(element, i);
3329
3330   for (i=0; i < NUM_CHANGE_EVENTS; i++)
3331     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
3332
3333   /* set walk-to-object action selectbox help value */
3334   custom_element.walk_to_action =
3335     (IS_DIGGABLE(element) ? EP_DIGGABLE :
3336      IS_COLLECTIBLE(element) ? EP_COLLECTIBLE :
3337      IS_PUSHABLE(element) ? EP_PUSHABLE :
3338      EP_DIGGABLE);
3339   custom_element_properties[EP_WALK_TO_OBJECT] =
3340     (IS_DIGGABLE(element) ||
3341      IS_COLLECTIBLE(element) ||
3342      IS_PUSHABLE(element));
3343
3344   /* set consistency selectbox help value */
3345   custom_element.consistency =
3346     (IS_INDESTRUCTIBLE(element) ? EP_INDESTRUCTIBLE :
3347      CAN_EXPLODE_BY_FIRE(element) ? EP_CAN_EXPLODE_BY_FIRE :
3348      EP_INDESTRUCTIBLE);
3349   custom_element_properties[EP_EXPLODE_RESULT] =
3350     (IS_INDESTRUCTIBLE(element) ||
3351      CAN_EXPLODE_BY_FIRE(element));
3352
3353   /* set deadliness selectbox help value */
3354   custom_element.deadliness =
3355     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
3356      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
3357      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
3358      EP_DONT_RUN_INTO);
3359   custom_element_properties[EP_DEADLY] =
3360     (DONT_TOUCH(element) ||
3361      DONT_COLLIDE_WITH(element) ||
3362      DONT_RUN_INTO(element));
3363
3364   /* set walkable layer selectbox help value */
3365   custom_element.walkable_layer =
3366     (IS_WALKABLE_OVER(element) ? EP_WALKABLE_OVER :
3367      IS_WALKABLE_INSIDE(element) ? EP_WALKABLE_INSIDE :
3368      IS_WALKABLE_UNDER(element) ? EP_WALKABLE_UNDER :
3369      EP_WALKABLE_OVER);
3370   custom_element_properties[EP_WALKABLE] =
3371     (IS_WALKABLE_OVER(element) ||
3372      IS_WALKABLE_INSIDE(element) ||
3373      IS_WALKABLE_UNDER(element));
3374 }
3375
3376 static void CopyCustomElementPropertiesToGame(int element)
3377 {
3378   int i;
3379
3380   element_info[properties_element] = custom_element;
3381
3382   /* set walk-to-object property from checkbox and selectbox */
3383   custom_element_properties[EP_DIGGABLE] = FALSE;
3384   custom_element_properties[EP_COLLECTIBLE] = FALSE;
3385   custom_element_properties[EP_PUSHABLE] = FALSE;
3386   custom_element_properties[custom_element.walk_to_action] =
3387     custom_element_properties[EP_WALK_TO_OBJECT];
3388
3389   /* set consistency property from checkbox and selectbox */
3390   custom_element_properties[EP_INDESTRUCTIBLE] = FALSE;
3391   custom_element_properties[EP_CAN_EXPLODE_BY_FIRE] = FALSE;
3392   custom_element_properties[custom_element.consistency] =
3393     custom_element_properties[EP_EXPLODE_RESULT];
3394
3395   /* set deadliness property from checkbox and selectbox */
3396   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
3397   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
3398   custom_element_properties[EP_DONT_TOUCH] = FALSE;
3399   custom_element_properties[custom_element.deadliness] =
3400     custom_element_properties[EP_DEADLY];
3401
3402   /* set walkable property from checkbox and selectbox */
3403   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
3404   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
3405   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
3406   custom_element_properties[custom_element.walkable_layer] =
3407     custom_element_properties[EP_WALKABLE];
3408
3409   for (i=0; i < NUM_ELEMENT_PROPERTIES; i++)
3410     SET_PROPERTY(element, i, custom_element_properties[i]);
3411
3412   for (i=0; i < NUM_CHANGE_EVENTS; i++)
3413     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
3414
3415   /* copy change events also to special level editor variable */
3416   custom_element = element_info[properties_element];
3417 }
3418
3419 void DrawLevelEd()
3420 {
3421   CloseDoor(DOOR_CLOSE_ALL);
3422   OpenDoor(DOOR_OPEN_2 | DOOR_NO_DELAY);
3423
3424   if (level_editor_test_game)
3425   {
3426     CopyPlayfield(Ur, Feld);
3427     CopyPlayfield(FieldBackup, Ur);
3428
3429     level_editor_test_game = FALSE;
3430   }
3431   else
3432   {
3433     edit_mode = ED_MODE_DRAWING;
3434     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
3435
3436     ResetUndoBuffer();
3437
3438     level_xpos = -1;
3439     level_ypos = -1;
3440   }
3441
3442   /* copy default editor door content to main double buffer */
3443   BlitBitmap(graphic_info[IMG_GLOBAL_DOOR].bitmap, drawto,
3444              DOOR_GFX_PAGEX6, DOOR_GFX_PAGEY1, DXSIZE, DYSIZE, DX, DY);
3445
3446   /* draw mouse button brush elements */
3447   DrawMiniGraphicExt(drawto,
3448                      DX + ED_WIN_MB_LEFT_XPOS, DY + ED_WIN_MB_LEFT_YPOS,
3449                      el2edimg(new_element1));
3450   DrawMiniGraphicExt(drawto,
3451                      DX + ED_WIN_MB_MIDDLE_XPOS, DY + ED_WIN_MB_MIDDLE_YPOS,
3452                      el2edimg(new_element2));
3453   DrawMiniGraphicExt(drawto,
3454                      DX + ED_WIN_MB_RIGHT_XPOS, DY + ED_WIN_MB_RIGHT_YPOS,
3455                      el2edimg(new_element3));
3456
3457   /* draw bigger door */
3458   DrawSpecialEditorDoor();
3459
3460   /* draw new control window */
3461   BlitBitmap(graphic_info[IMG_GLOBAL_DOOR].bitmap, drawto,
3462              DOOR_GFX_PAGEX8, 236, EXSIZE, EYSIZE, EX, EY);
3463
3464   redraw_mask |= REDRAW_ALL;
3465
3466   ReinitializeElementListButtons();     /* only needed after setup changes */
3467
3468   UnmapTapeButtons();
3469   MapControlButtons();
3470
3471   /* copy actual editor door content to door double buffer for OpenDoor() */
3472   BlitBitmap(drawto, bitmap_db_door,
3473              DX, DY, DXSIZE, DYSIZE, DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
3474
3475   DrawEditModeWindow();
3476
3477   OpenDoor(DOOR_OPEN_1);
3478 }
3479
3480 static void AdjustDrawingAreaGadgets()
3481 {
3482   int ed_xsize = lev_fieldx + 2;
3483   int ed_ysize = lev_fieldy + 2;
3484   int max_ed_fieldx = MAX_ED_FIELDX;
3485   int max_ed_fieldy = MAX_ED_FIELDY;
3486   boolean horizontal_scrollbar_needed;
3487   boolean vertical_scrollbar_needed;
3488   int x, y, width, height;
3489   int xoffset, yoffset;
3490
3491   /* check if we need any scrollbars */
3492   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
3493   vertical_scrollbar_needed = (ed_ysize > max_ed_fieldy);
3494
3495   /* check if we have a smaller editor field because of scrollbars */
3496   if (horizontal_scrollbar_needed)
3497     max_ed_fieldy = MAX_ED_FIELDY - 1;
3498   if (vertical_scrollbar_needed)
3499     max_ed_fieldx = MAX_ED_FIELDX - 1;
3500
3501   /* check again if we now need more scrollbars because of less space */
3502   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
3503   vertical_scrollbar_needed = (ed_ysize > max_ed_fieldy);
3504
3505   /* check if editor field gets even smaller after adding new scrollbars */
3506   if (horizontal_scrollbar_needed)
3507     max_ed_fieldy = MAX_ED_FIELDY - 1;
3508   if (vertical_scrollbar_needed)
3509     max_ed_fieldx = MAX_ED_FIELDX - 1;
3510
3511   ed_fieldx = (ed_xsize < MAX_ED_FIELDX ? ed_xsize : max_ed_fieldx);
3512   ed_fieldy = (ed_ysize < MAX_ED_FIELDY ? ed_ysize : max_ed_fieldy);
3513
3514   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
3515                GDI_WIDTH, ed_fieldx * MINI_TILEX,
3516                GDI_HEIGHT, ed_fieldy * MINI_TILEY,
3517                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
3518                GDI_END);
3519
3520   xoffset = (ed_fieldx == MAX_ED_FIELDX ? ED_SCROLLBUTTON_XSIZE : 0);
3521   yoffset = (ed_fieldy == MAX_ED_FIELDY ? ED_SCROLLBUTTON_YSIZE : 0);
3522
3523   x = SX + scrollbutton_info[ED_SCROLLBUTTON_ID_AREA_RIGHT].x + xoffset;
3524   y = SX + scrollbutton_info[ED_SCROLLBUTTON_ID_AREA_DOWN].y + yoffset;
3525
3526   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT], GDI_X, x, GDI_END);
3527   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN], GDI_Y, y, GDI_END);
3528
3529   width = scrollbar_info[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width + xoffset;
3530   height = scrollbar_info[ED_SCROLLBAR_ID_AREA_VERTICAL].height + yoffset;
3531
3532   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
3533                GDI_WIDTH, width,
3534                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
3535                GDI_END);
3536   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
3537                GDI_HEIGHT, height,
3538                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
3539                GDI_END);
3540 }
3541
3542 static void AdjustLevelScrollPosition()
3543 {
3544   if (level_xpos < -1)
3545     level_xpos = -1;
3546   if (level_xpos > lev_fieldx - ed_fieldx + 1)
3547     level_xpos = lev_fieldx - ed_fieldx + 1;
3548   if (lev_fieldx < ed_fieldx - 2)
3549     level_xpos = -1;
3550
3551   if (level_ypos < -1)
3552     level_ypos = -1;
3553   if (level_ypos > lev_fieldy - ed_fieldy + 1)
3554     level_ypos = lev_fieldy - ed_fieldy + 1;
3555   if (lev_fieldy < ed_fieldy - 2)
3556     level_ypos = -1;
3557 }
3558
3559 static void AdjustEditorScrollbar(int id)
3560 {
3561   struct GadgetInfo *gi = level_editor_gadget[id];
3562   int items_max, items_visible, item_position;
3563
3564   if (id == GADGET_ID_SCROLL_HORIZONTAL)
3565   {
3566     items_max = MAX(lev_fieldx + 2, ed_fieldx);
3567     items_visible = ed_fieldx;
3568     item_position = level_xpos + 1;
3569   }
3570   else
3571   {
3572     items_max = MAX(lev_fieldy + 2, ed_fieldy);
3573     items_visible = ed_fieldy;
3574     item_position = level_ypos + 1;
3575   }
3576
3577   if (item_position > items_max - items_visible)
3578     item_position = items_max - items_visible;
3579
3580   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
3581                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
3582 }
3583
3584 static void ModifyEditorCounter(int counter_id, int new_value)
3585 {
3586   int *counter_value = counterbutton_info[counter_id].value;
3587   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
3588   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
3589
3590   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
3591
3592   if (counter_value != NULL)
3593     *counter_value = gi->text.number_value;
3594 }
3595
3596 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
3597 {
3598   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
3599   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
3600
3601   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
3602 }
3603
3604 static void ModifyEditorSelectbox(int selectbox_id, int new_value)
3605 {
3606   int gadget_id = selectbox_info[selectbox_id].gadget_id;
3607   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
3608   int new_index_value = 0;
3609   int i;
3610
3611   for(i=0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
3612     if (selectbox_info[selectbox_id].options[i].value == new_value)
3613       new_index_value = i;
3614
3615   *selectbox_info[selectbox_id].value =
3616     selectbox_info[selectbox_id].options[new_index_value].value;
3617
3618   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
3619 }
3620
3621 static void ModifyEditorElementList()
3622 {
3623   int i;
3624
3625   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
3626   {
3627     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
3628     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
3629     struct GadgetDesign *gd = &gi->deco.design;
3630     int element = editor_elements[element_shift + i];
3631
3632     UnmapGadget(gi);
3633     getMiniGraphicSource(el2edimg(element), &gd->bitmap, &gd->x, &gd->y);
3634     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
3635     MapGadget(gi);
3636   }
3637 }
3638
3639 static void PickDrawingElement(int button, int element)
3640 {
3641   if (button < 1 || button > 3)
3642     return;
3643
3644   if (button == 1)
3645   {
3646     new_element1 = element;
3647     DrawMiniGraphicExt(drawto,
3648                        DX + ED_WIN_MB_LEFT_XPOS, DY + ED_WIN_MB_LEFT_YPOS,
3649                        el2edimg(new_element1));
3650   }
3651   else if (button == 2)
3652   {
3653     new_element2 = element;
3654     DrawMiniGraphicExt(drawto,
3655                        DX + ED_WIN_MB_MIDDLE_XPOS, DY + ED_WIN_MB_MIDDLE_YPOS,
3656                        el2edimg(new_element2));
3657   }
3658   else
3659   {
3660     new_element3 = element;
3661     DrawMiniGraphicExt(drawto,
3662                        DX + ED_WIN_MB_RIGHT_XPOS, DY + ED_WIN_MB_RIGHT_YPOS,
3663                        el2edimg(new_element3));
3664   }
3665
3666   redraw_mask |= REDRAW_DOOR_1;
3667 }
3668
3669 static void RedrawDrawingElements()
3670 {
3671   PickDrawingElement(1, new_element1);
3672   PickDrawingElement(2, new_element2);
3673   PickDrawingElement(3, new_element3);
3674 }
3675
3676 static void DrawDrawingWindow()
3677 {
3678   stick_element_properties_window = FALSE;
3679
3680   SetMainBackgroundImage(IMG_UNDEFINED);
3681   ClearWindow();
3682   UnmapLevelEditorWindowGadgets();
3683
3684   AdjustDrawingAreaGadgets();
3685   AdjustLevelScrollPosition();
3686   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
3687   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
3688
3689   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3690   MapMainDrawingArea();
3691 }
3692
3693 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
3694                               boolean input)
3695 {
3696   int border_graphic =
3697     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
3698   Bitmap *src_bitmap;
3699   int src_x, src_y;
3700   int num_mini_tilex = width / MINI_TILEX + 1;
3701   int num_mini_tiley = width / MINI_TILEY + 1;
3702   int x, y;
3703
3704   getMiniGraphicSource(border_graphic, &src_bitmap, &src_x, &src_y);
3705
3706   for (y=0; y < num_mini_tiley; y++)
3707     for (x=0; x < num_mini_tilex; x++)
3708       BlitBitmap(src_bitmap, drawto, src_x, src_y, MINI_TILEX, MINI_TILEY,
3709                  dest_x - MINI_TILEX / 2 + x * MINI_TILEX,
3710                  dest_y - MINI_TILEY / 2 + y * MINI_TILEY);
3711
3712   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
3713 }
3714
3715 static void DrawRandomPlacementBackgroundArea()
3716 {
3717   int area_x = ED_AREA_RANDOM_BACKGROUND_XPOS / MINI_TILEX;
3718   int area_y = ED_AREA_RANDOM_BACKGROUND_YPOS / MINI_TILEY;
3719   int area_sx = SX + ED_AREA_RANDOM_BACKGROUND_XPOS;
3720   int area_sy = SY + ED_AREA_RANDOM_BACKGROUND_YPOS;
3721
3722   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY, TRUE);
3723   DrawMiniElement(area_x, area_y, random_placement_background_element);
3724
3725   MapDrawingArea(GADGET_ID_RANDOM_BACKGROUND);
3726 }
3727
3728 static void DrawLevelInfoWindow()
3729 {
3730   int i;
3731
3732   stick_element_properties_window = FALSE;
3733
3734   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
3735   ClearWindow();
3736   UnmapLevelEditorWindowGadgets();
3737
3738   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS1_YPOS,
3739            "Level Settings", FONT_TITLE_1);
3740   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS2_YPOS,
3741            "Editor Settings", FONT_TITLE_1);
3742
3743   /* draw counter gadgets */
3744   for (i=ED_COUNTER_ID_LEVEL_FIRST; i<=ED_COUNTER_ID_LEVEL_LAST; i++)
3745     MapCounterButtons(i);
3746
3747   /* draw checkbutton gadgets */
3748   for (i=ED_CHECKBUTTON_ID_LEVEL_FIRST; i<=ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
3749     MapCheckbuttonGadget(i);
3750
3751   /* draw radiobutton gadgets */
3752   for (i=ED_RADIOBUTTON_ID_LEVEL_FIRST; i<=ED_RADIOBUTTON_ID_LEVEL_LAST; i++)
3753     MapRadiobuttonGadget(i);
3754
3755   /* draw text input gadgets */
3756   for (i=ED_TEXTINPUT_ID_LEVEL_FIRST; i<=ED_TEXTINPUT_ID_LEVEL_LAST; i++)
3757     MapTextInputGadget(i);
3758
3759   /* draw drawing area */
3760   DrawRandomPlacementBackgroundArea();
3761 }
3762
3763 static void DrawAmoebaContentArea()
3764 {
3765   int area_x = ED_AREA_ELEM_CONTENT_XPOS / MINI_TILEX;
3766   int area_y = ED_AREA_ELEM_CONTENT_YPOS / MINI_TILEY;
3767   int area_sx = SX + ED_AREA_ELEM_CONTENT_XPOS;
3768   int area_sy = SY + ED_AREA_ELEM_CONTENT_YPOS;
3769
3770   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY, TRUE);
3771   DrawMiniElement(area_x, area_y, level.amoeba_content);
3772
3773   DrawText(area_sx + TILEX, area_sy + 1, "Content of amoeba", FONT_TEXT_1);
3774
3775   MapDrawingArea(GADGET_ID_AMOEBA_CONTENT);
3776 }
3777
3778 static void DrawCustomGraphicElementArea()
3779 {
3780   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_CUSTOM_GRAPHIC];
3781   int xpos = ED_AREA_ELEM_CONTENT3_XPOS;
3782   int ypos = ED_AREA_ELEM_CONTENT3_YPOS;
3783   int area_sx = SX + xpos;
3784   int area_sy = SY + ypos;
3785
3786   if (!IS_CUSTOM_ELEMENT(properties_element))
3787   {
3788     /* this should never happen */
3789     Error(ERR_WARN, "element %d is no custom element", properties_element);
3790
3791     return;
3792   }
3793
3794   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY, TRUE);
3795   DrawMiniGraphicExt(drawto, gi->x, gi->y,
3796                      el2edimg(custom_element.gfx_element));
3797
3798   MapDrawingArea(GADGET_ID_CUSTOM_GRAPHIC);
3799 }
3800
3801 static void DrawCustomContentArea()
3802 {
3803   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_CUSTOM_CONTENT];
3804   int area_sx = SX + ED_AREA_ELEM_CONTENT4_XPOS;
3805   int area_sy = SY + ED_AREA_ELEM_CONTENT4_YPOS;
3806   int x, y;
3807
3808   if (!IS_CUSTOM_ELEMENT(properties_element))
3809   {
3810     /* this should never happen */
3811     Error(ERR_WARN, "element %d is no custom element", properties_element);
3812
3813     return;
3814   }
3815
3816   DrawElementBorder(area_sx, area_sy, 3 * MINI_TILEX, 3 * MINI_TILEY, TRUE);
3817
3818   for (y=0; y<3; y++)
3819     for (x=0; x<3; x++)
3820       DrawMiniGraphicExt(drawto, gi->x + x * MINI_TILEX,gi->y + y * MINI_TILEY,
3821                          el2edimg(custom_element.content[x][y]));
3822
3823   MapDrawingArea(GADGET_ID_CUSTOM_CONTENT);
3824 }
3825
3826 static void DrawCustomChangedArea()
3827 {
3828   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_CUSTOM_CHANGED];
3829   int xpos = ED_AREA_ELEM_CONTENT2_XPOS;
3830   int ypos = ED_AREA_ELEM_CONTENT2_YPOS;
3831   int area_sx = SX + xpos;
3832   int area_sy = SY + ypos;
3833
3834   if (!IS_CUSTOM_ELEMENT(properties_element))
3835   {
3836     /* this should never happen */
3837     Error(ERR_WARN, "element %d is no custom element", properties_element);
3838
3839     return;
3840   }
3841
3842   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY, TRUE);
3843   DrawMiniGraphicExt(drawto, gi->x, gi->y,
3844                      el2edimg(custom_element.change.successor));
3845
3846   MapDrawingArea(GADGET_ID_CUSTOM_CHANGED);
3847 }
3848
3849 static void DrawElementContentAreas()
3850 {
3851   int area_x = ED_AREA_ELEM_CONTENT_XPOS / MINI_TILEX;
3852   int area_y = ED_AREA_ELEM_CONTENT_YPOS / MINI_TILEY;
3853   int area_sx = SX + ED_AREA_ELEM_CONTENT_XPOS;
3854   int area_sy = SY + ED_AREA_ELEM_CONTENT_YPOS;
3855   int i, x, y;
3856
3857   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
3858     UnmapDrawingArea(GADGET_ID_ELEMENT_CONTENT_0 + i);
3859
3860   /* display counter to choose number of element content areas */
3861   MapCounterButtons(ED_COUNTER_ID_ELEMENT_CONTENT);
3862
3863   /* delete content areas in case of reducing number of them */
3864   DrawBackground(SX, area_sy - MINI_TILEX, SXSIZE, 12 * MINI_TILEY);
3865
3866   for (i=0; i<level.num_yamyam_contents; i++)
3867     DrawElementBorder(area_sx + 5 * (i % 4) * MINI_TILEX,
3868                       area_sy + 6 * (i / 4) * MINI_TILEY,
3869                       3 * MINI_TILEX, 3 * MINI_TILEY, TRUE);
3870
3871   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 0 * MINI_TILEY + 1,
3872            "Content", FONT_TEXT_1);
3873   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 1 * MINI_TILEY + 1,
3874            "when",    FONT_TEXT_1);
3875   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 2 * MINI_TILEY + 1,
3876            "smashed", FONT_TEXT_1);
3877
3878   for (i=0; i<level.num_yamyam_contents; i++)
3879   {
3880     for (y=0; y<3; y++)
3881       for (x=0; x<3; x++)
3882         DrawMiniElement(area_x + 5 * (i % 4) + x, area_y + 6 * (i / 4) + y,
3883                         level.yamyam_content[i][x][y]);
3884
3885     DrawTextF(area_sx - SX + 5 * (i % 4) * MINI_TILEX + MINI_TILEX + 1,
3886               area_sy - SY + 6 * (i / 4) * MINI_TILEY + 4 * MINI_TILEY - 4,
3887               FONT_TEXT_1, "%d", i + 1);
3888   }
3889
3890   for (i=0; i<level.num_yamyam_contents; i++)
3891     MapDrawingArea(GADGET_ID_ELEMENT_CONTENT_0 + i);
3892 }
3893
3894 char *getElementDescriptionFilename(int element)
3895 {
3896   char *docs_dir = options.docs_directory;
3897   char *elements_subdir = "elements";
3898   static char *filename = NULL;
3899   char basename[MAX_FILENAME_LEN];
3900
3901   if (filename != NULL)
3902     free(filename);
3903
3904   /* 1st try: look for element description file for exactly this element */
3905   sprintf(basename, "%s.txt", element_info[element].token_name);
3906   filename = getPath3(docs_dir, elements_subdir, basename);
3907   if (fileExists(filename))
3908     return filename;
3909
3910   free(filename);
3911
3912   /* 2nd try: look for element description file for this element's class */
3913   sprintf(basename, "%s.txt", element_info[element].class_name);
3914   filename = getPath3(docs_dir, elements_subdir, basename);
3915   if (fileExists(filename))
3916     return filename;
3917
3918   return NULL;
3919 }
3920
3921 static boolean PrintInfoText(char *text, int font_nr, int screen_line)
3922 {
3923   int font_height = getFontHeight(font_nr);
3924   int pad_x = ED_SETTINGS_XPOS(0);
3925   int pad_y = ED_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
3926   int sx = SX + pad_x;
3927   int sy = SY + pad_y;
3928   int max_lines_per_screen = (SYSIZE - pad_y) / font_height - 1;
3929
3930   if (screen_line >= max_lines_per_screen)
3931     return FALSE;
3932
3933   DrawText(sx, sy + screen_line * font_height, text, font_nr);
3934
3935   return TRUE;
3936 }
3937
3938 static int PrintElementDescriptionFromFile(char *filename, int screen_line)
3939 {
3940   int font_nr = FONT_TEXT_2;
3941   int font_width = getFontWidth(font_nr);
3942   int pad_x = ED_SETTINGS_XPOS(0);
3943   int max_chars_per_line = (SXSIZE - 2 * pad_x) / font_width;
3944   char line[MAX_LINE_LEN];
3945   char buffer[max_chars_per_line + 1];
3946   int buffer_len;
3947   int lines_printed = 0;
3948   FILE *file;
3949
3950   if (filename == NULL)
3951     return 0;
3952
3953   if (!(file = fopen(filename, MODE_READ)))
3954     return 0;
3955
3956   buffer[0] = '\0';
3957   buffer_len = 0;
3958
3959   while(!feof(file))
3960   {
3961     char *line_ptr, *word_ptr;
3962     boolean last_line_was_empty = TRUE;
3963
3964     /* read next line of input file */
3965     if (!fgets(line, MAX_LINE_LEN, file))
3966       break;
3967
3968     /* skip comments (lines directly beginning with '#') */
3969     if (line[0] == '#')
3970       continue;
3971
3972     /* cut trailing newline from input line */
3973     for (line_ptr = line; *line_ptr; line_ptr++)
3974     {
3975       if (*line_ptr == '\n' || *line_ptr == '\r')
3976       {
3977         *line_ptr = '\0';
3978         break;
3979       }
3980     }
3981
3982     if (strlen(line) == 0)              /* special case: force empty line */
3983       strcpy(line, "\n");
3984
3985     word_ptr = line;
3986
3987     while (*word_ptr)
3988     {
3989       boolean print_buffer = FALSE;
3990       int word_len;
3991
3992       /* skip leading whitespaces */
3993       while (*word_ptr == ' ' || *word_ptr == '\t')
3994         word_ptr++;
3995
3996       line_ptr = word_ptr;
3997       word_len = 0;
3998
3999       /* look for end of next word */
4000       while (*line_ptr != ' ' && *line_ptr != '\t' && *line_ptr != '\0')
4001       {
4002         line_ptr++;
4003         word_len++;
4004       }
4005
4006       if (word_len == 0)
4007       {
4008         continue;
4009       }
4010       else if (*word_ptr == '\n')       /* special case: force empty line */
4011       {
4012         if (buffer_len == 0)
4013           word_ptr++;
4014
4015         /* prevent printing of multiple empty lines */
4016         if (buffer_len > 0 || !last_line_was_empty)
4017           print_buffer = TRUE;
4018       }
4019       else if (word_len < max_chars_per_line - buffer_len)
4020       {
4021         /* word fits into text buffer -- add word */
4022
4023         if (buffer_len > 0)
4024           buffer[buffer_len++] = ' ';
4025
4026         strncpy(&buffer[buffer_len], word_ptr, word_len);
4027         buffer_len += word_len;
4028         buffer[buffer_len] = '\0';
4029         word_ptr += word_len;
4030       }
4031       else if (buffer_len > 0)
4032       {
4033         /* not enough space left for word in text buffer -- print buffer */
4034
4035         print_buffer = TRUE;
4036       }
4037       else
4038       {
4039         /* word does not fit at all into empty text buffer -- cut word */
4040
4041         strncpy(buffer, word_ptr, max_chars_per_line);
4042         buffer[max_chars_per_line] = '\0';
4043         word_ptr += max_chars_per_line;
4044         print_buffer = TRUE;
4045       }
4046
4047       if (print_buffer)
4048       {
4049         if (!PrintInfoText(buffer, font_nr, screen_line + lines_printed))
4050           return lines_printed;
4051
4052         last_line_was_empty = (buffer_len == 0);
4053         lines_printed++;
4054
4055         buffer[0] = '\0';
4056         buffer_len = 0;
4057         print_buffer = FALSE;
4058       }
4059     }
4060   }
4061
4062   fclose(file);
4063
4064   if (buffer_len > 0)
4065     if (PrintInfoText(buffer, font_nr, screen_line + lines_printed))
4066       lines_printed++;
4067
4068   return lines_printed;
4069 }
4070
4071 static void DrawPropertiesTabulatorGadgets()
4072 {
4073   struct GadgetInfo *gd_gi = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
4074   struct GadgetDesign *gd = &gd_gi->alt_design[GD_BUTTON_UNPRESSED];
4075   int gd_x = gd->x + gd_gi->border.width / 2;
4076   int gd_y = gd->y + gd_gi->height - 1;
4077   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
4078   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
4079 #if 1
4080   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
4081 #else
4082   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
4083 #endif
4084   int i;
4085
4086 #if 0
4087   /* draw additional "configure" tabulator for configurable elements */
4088   if (checkPropertiesConfig())
4089     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
4090 #endif
4091
4092   /* draw additional "advanced" tabulator for custom elements */
4093   if (IS_CUSTOM_ELEMENT(properties_element))
4094     id_last = ED_TEXTBUTTON_ID_PROPERTIES_ADVANCED;
4095
4096   for (i=id_first; i <= id_last; i++)
4097   {
4098     int gadget_id = textbutton_info[i].gadget_id;
4099     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
4100     boolean active = (i != edit_mode_properties);
4101
4102     /* draw background line below tabulator button */
4103     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width,1);
4104
4105     /* draw solid line below inactive tabulator buttons */
4106     if (!active && tab_color != BLACK_PIXEL)    /* black => transparent */
4107       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,1, tab_color);
4108
4109     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
4110     MapTextbuttonGadget(i);
4111   }
4112
4113   /* draw little border line below tabulator buttons */
4114   if (tab_color != BLACK_PIXEL)                 /* black => transparent */
4115     FillRectangle(drawto, gd_gi->x, gd_gi->y + gd_gi->height + 1,
4116                   3 * gd_gi->width + 2 * ED_GADGET_DISTANCE,
4117                   ED_GADGET_DISTANCE, tab_color);
4118 }
4119
4120 static void DrawPropertiesInfo()
4121 {
4122   static struct
4123   {
4124     int value;
4125     char *text;
4126   }
4127   properties[] =
4128   {
4129     /* configurable properties */
4130     { EP_INDESTRUCTIBLE,        "- undestructible"                      },
4131     { EP_SLIPPERY,              "- slippery for falling objects"        },
4132     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
4133
4134     { EP_DIGGABLE,              "- diggable"                            },
4135     { EP_COLLECTIBLE,           "- collectible"                         },
4136     { EP_PUSHABLE,              "- pushable"                            },
4137
4138     { EP_CAN_MOVE,              "- can move"                            },
4139     { EP_CAN_FALL,              "- can fall"                            },
4140     { EP_CAN_SMASH,             "- can smash other objects"             },
4141     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode (by fire/explosion)"     },
4142
4143     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
4144     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
4145     { EP_DONT_TOUCH,            "- deadly when touching"                },
4146
4147     { EP_WALKABLE_OVER,         "- player can walk over it"             },
4148     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
4149     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
4150     { EP_PASSABLE_OVER,         "- player can pass over it"             },
4151     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
4152     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
4153
4154     /* pre-defined properties */
4155     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
4156     { EP_HAS_CONTENT,           "- can contain other elements"          },
4157
4158     { -1,                       NULL                                    }
4159   };
4160   char *filename = getElementDescriptionFilename(properties_element);
4161   char *percentage_text = "In this level:";
4162   char *properties_text = "Standard properties:";
4163   float percentage;
4164   int num_elements_in_level;
4165   int num_standard_properties = 0;
4166   int font1_nr = FONT_TEXT_1;
4167   int font2_nr = FONT_TEXT_2;
4168   int font1_width = getFontWidth(font1_nr);
4169   int font2_height = getFontHeight(font2_nr);
4170   int pad_x = ED_SETTINGS_XPOS(0);
4171   int pad_y = ED_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
4172   int screen_line = 0;
4173   int i, x, y;
4174
4175   /* ----- print number of elements / percentage of this element in level */
4176
4177   num_elements_in_level = 0;
4178   for (y=0; y<lev_fieldy; y++)
4179     for (x=0; x<lev_fieldx; x++)
4180       if (Feld[x][y] == properties_element)
4181         num_elements_in_level++;
4182   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
4183
4184   DrawTextF(pad_x, pad_y + screen_line * font2_height, font1_nr,
4185             percentage_text);
4186   DrawTextF(pad_x + strlen(percentage_text) * font1_width,
4187             pad_y + screen_line++ * font2_height, font2_nr,
4188             "%d (%.2f%%)", num_elements_in_level, percentage);
4189
4190   screen_line++;
4191
4192   /* ----- print standard properties of this element */
4193
4194   DrawTextF(pad_x, pad_y + screen_line++ * font2_height, font1_nr,
4195             properties_text);
4196
4197   for (i=0; properties[i].value != -1; i++)
4198   {
4199     if (!HAS_PROPERTY(properties_element, properties[i].value))
4200       continue;
4201
4202     DrawTextF(pad_x, pad_y + screen_line++ * font2_height, font2_nr,
4203               properties[i].text);
4204     num_standard_properties++;
4205   }
4206
4207   if (num_standard_properties == 0)
4208     DrawTextF(pad_x + strlen(properties_text) * font1_width,
4209               pad_y + (screen_line - 1) * font2_height, font2_nr, "none");
4210
4211   screen_line++;
4212
4213   /* ----- print special description of this element */
4214
4215   PrintInfoText("Description:", FONT_TEXT_1, screen_line);
4216   if (PrintElementDescriptionFromFile(filename, screen_line + 1) == 0)
4217     PrintInfoText("No description available.", FONT_TEXT_1, screen_line);
4218 }
4219
4220 #define TEXT_COLLECTING         "Score for collecting"
4221 #define TEXT_SMASHING           "Score for smashing"
4222 #define TEXT_CRACKING           "Score for cracking"
4223 #define TEXT_SPEED              "Speed of amoeba growth"
4224 #define TEXT_DURATION           "Duration when activated"
4225
4226 static struct
4227 {
4228   int element;
4229   int *value;
4230   char *text;
4231 } elements_with_counter[] =
4232 {
4233   { EL_EMERALD,         &level.score[SC_EMERALD],       TEXT_COLLECTING },
4234   { EL_BD_DIAMOND,      &level.score[SC_EMERALD],       TEXT_COLLECTING },
4235   { EL_EMERALD_YELLOW,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
4236   { EL_EMERALD_RED,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
4237   { EL_EMERALD_PURPLE,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
4238   { EL_SP_INFOTRON,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
4239   { EL_DIAMOND,         &level.score[SC_DIAMOND],       TEXT_COLLECTING },
4240   { EL_CRYSTAL,         &level.score[SC_CRYSTAL],       TEXT_COLLECTING },
4241   { EL_PEARL,           &level.score[SC_PEARL],         TEXT_COLLECTING },
4242   { EL_BUG_RIGHT,       &level.score[SC_BUG],           TEXT_SMASHING   },
4243   { EL_BUG_UP,          &level.score[SC_BUG],           TEXT_SMASHING   },
4244   { EL_BUG_LEFT,        &level.score[SC_BUG],           TEXT_SMASHING   },
4245   { EL_BUG_DOWN,        &level.score[SC_BUG],           TEXT_SMASHING   },
4246   { EL_BD_BUTTERFLY_RIGHT,&level.score[SC_BUG],         TEXT_SMASHING   },
4247   { EL_BD_BUTTERFLY_UP,   &level.score[SC_BUG],         TEXT_SMASHING   },
4248   { EL_BD_BUTTERFLY_LEFT, &level.score[SC_BUG],         TEXT_SMASHING   },
4249   { EL_BD_BUTTERFLY_DOWN, &level.score[SC_BUG],         TEXT_SMASHING   },
4250   { EL_SP_ELECTRON,     &level.score[SC_BUG],           TEXT_SMASHING   },
4251   { EL_SPACESHIP_RIGHT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4252   { EL_SPACESHIP_UP,    &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4253   { EL_SPACESHIP_LEFT,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4254   { EL_SPACESHIP_DOWN,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4255   { EL_BD_FIREFLY_RIGHT,&level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4256   { EL_BD_FIREFLY_UP,   &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4257   { EL_BD_FIREFLY_LEFT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4258   { EL_BD_FIREFLY_DOWN, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4259   { EL_SP_SNIKSNAK,     &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4260   { EL_YAMYAM,          &level.score[SC_YAMYAM],        TEXT_SMASHING   },
4261   { EL_DARK_YAMYAM,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
4262   { EL_ROBOT,           &level.score[SC_ROBOT],         TEXT_SMASHING   },
4263   { EL_PACMAN_RIGHT,    &level.score[SC_PACMAN],        TEXT_SMASHING   },
4264   { EL_PACMAN_UP,       &level.score[SC_PACMAN],        TEXT_SMASHING   },
4265   { EL_PACMAN_LEFT,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
4266   { EL_PACMAN_DOWN,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
4267   { EL_NUT,             &level.score[SC_NUT],           TEXT_CRACKING   },
4268   { EL_DYNAMITE,        &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
4269   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],TEXT_COLLECTING },
4270   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],TEXT_COLLECTING },
4271   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],TEXT_COLLECTING },
4272   { EL_SHIELD_NORMAL,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
4273   { EL_SHIELD_DEADLY,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
4274   { EL_EXTRA_TIME,      &level.score[SC_TIME_BONUS],    TEXT_COLLECTING },
4275   { EL_KEY_1,           &level.score[SC_KEY],           TEXT_COLLECTING },
4276   { EL_KEY_2,           &level.score[SC_KEY],           TEXT_COLLECTING },
4277   { EL_KEY_3,           &level.score[SC_KEY],           TEXT_COLLECTING },
4278   { EL_KEY_4,           &level.score[SC_KEY],           TEXT_COLLECTING },
4279   { EL_EM_KEY_1_FILE,   &level.score[SC_KEY],           TEXT_COLLECTING },
4280   { EL_EM_KEY_2_FILE,   &level.score[SC_KEY],           TEXT_COLLECTING },
4281   { EL_EM_KEY_3_FILE,   &level.score[SC_KEY],           TEXT_COLLECTING },
4282   { EL_EM_KEY_4_FILE,   &level.score[SC_KEY],           TEXT_COLLECTING },
4283   { EL_AMOEBA_WET,      &level.amoeba_speed,            TEXT_SPEED      },
4284   { EL_AMOEBA_DRY,      &level.amoeba_speed,            TEXT_SPEED      },
4285   { EL_AMOEBA_FULL,     &level.amoeba_speed,            TEXT_SPEED      },
4286   { EL_BD_AMOEBA,       &level.amoeba_speed,            TEXT_SPEED      },
4287   { EL_MAGIC_WALL,      &level.time_magic_wall,         TEXT_DURATION   },
4288   { EL_ROBOT_WHEEL,     &level.time_wheel,              TEXT_DURATION   },
4289   { -1,                 NULL,                           NULL            }
4290 };
4291
4292 static boolean checkPropertiesConfig()
4293 {
4294   int i;
4295
4296   if (IS_GEM(properties_element) ||
4297       IS_CUSTOM_ELEMENT(properties_element) ||
4298       HAS_CONTENT(properties_element))
4299     return TRUE;
4300   else
4301     for (i=0; elements_with_counter[i].element != -1; i++)
4302       if (elements_with_counter[i].element == properties_element)
4303         return TRUE;
4304
4305   return FALSE;
4306 }
4307
4308 static void DrawPropertiesConfig()
4309 {
4310   int i;
4311
4312   if (!checkPropertiesConfig())
4313   {
4314     PrintInfoText("No configuration options available.", FONT_TEXT_1, 0);
4315
4316     return;
4317   }
4318
4319   /* check if there are elements where a score can be chosen for */
4320   for (i=0; elements_with_counter[i].element != -1; i++)
4321   {
4322     if (elements_with_counter[i].element == properties_element)
4323     {
4324       int counter_id = ED_COUNTER_ID_ELEMENT_SCORE;
4325
4326       counterbutton_info[counter_id].value = elements_with_counter[i].value;
4327       counterbutton_info[counter_id].text_right= elements_with_counter[i].text;
4328       MapCounterButtons(counter_id);
4329
4330       break;
4331     }
4332   }
4333
4334   if (HAS_CONTENT(properties_element))
4335   {
4336     /* draw stickybutton gadget */
4337     i = ED_CHECKBUTTON_ID_STICK_ELEMENT;
4338     checkbutton_info[i].y = ED_COUNTER_YPOS(4);
4339     MapCheckbuttonGadget(i);
4340
4341     if (IS_AMOEBOID(properties_element))
4342       DrawAmoebaContentArea();
4343     else
4344       DrawElementContentAreas();
4345   }
4346
4347   if (IS_GEM(properties_element))
4348     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
4349
4350   if (IS_CUSTOM_ELEMENT(properties_element))
4351   {
4352     /* draw stickybutton gadget */
4353     i = ED_CHECKBUTTON_ID_STICK_ELEMENT;
4354     checkbutton_info[i].y = ED_SETTINGS_YPOS(0);
4355     MapCheckbuttonGadget(i);
4356
4357     /* draw checkbutton gadgets */
4358     for (i =  ED_CHECKBUTTON_ID_CUSTOM_FIRST;
4359          i <= ED_CHECKBUTTON_ID_CUSTOM_LAST; i++)
4360       MapCheckbuttonGadget(i);
4361
4362     /* draw counter gadgets */
4363     for (i=ED_COUNTER_ID_CUSTOM_FIRST; i<=ED_COUNTER_ID_CUSTOM_LAST; i++)
4364       MapCounterButtons(i);
4365
4366     /* draw selectbox gadgets */
4367     for (i=ED_SELECTBOX_ID_CUSTOM_FIRST; i <= ED_SELECTBOX_ID_CUSTOM_LAST; i++)
4368       MapSelectboxGadget(i);
4369
4370     /* draw drawing area gadgets */
4371     DrawCustomContentArea();
4372   }
4373 }
4374
4375 static void DrawPropertiesAdvanced()
4376 {
4377   int i;
4378
4379   /* draw stickybutton gadget */
4380   i = ED_CHECKBUTTON_ID_STICK_ELEMENT;
4381   checkbutton_info[i].y = ED_SETTINGS_YPOS(0);
4382   MapCheckbuttonGadget(i);
4383
4384   /* draw checkbutton gadgets */
4385   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
4386        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
4387     MapCheckbuttonGadget(i);
4388
4389   /* draw counter gadgets */
4390   for (i=ED_COUNTER_ID_CHANGE_FIRST; i<=ED_COUNTER_ID_CHANGE_LAST; i++)
4391     MapCounterButtons(i);
4392
4393   /* draw selectbox gadgets */
4394   for (i=ED_SELECTBOX_ID_CHANGE_FIRST; i<=ED_SELECTBOX_ID_CHANGE_LAST; i++)
4395     MapSelectboxGadget(i);
4396
4397   /* draw textbutton gadgets */
4398   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE);
4399
4400   /* draw drawing area gadgets */
4401   DrawCustomGraphicElementArea();
4402   DrawCustomChangedArea();
4403 }
4404
4405 static void DrawElementName(int x, int y, int element)
4406 {
4407   char *element_name = getElementInfoText(element);
4408   int font_nr = FONT_TEXT_1;
4409   int font_width = getFontWidth(font_nr);
4410   int font_height = getFontHeight(font_nr);
4411   int max_text_width = SXSIZE - x - ED_SETTINGS_XPOS(0);
4412   int max_chars_per_line = max_text_width / font_width;
4413   char buffer[max_chars_per_line + 1];
4414
4415   if (strlen(element_name) <= max_chars_per_line)
4416     DrawTextF(x, y, font_nr, element_name);
4417   else
4418   {
4419     int next_pos = max_chars_per_line;
4420
4421     strncpy(buffer, element_name, max_chars_per_line);
4422     buffer[max_chars_per_line] = '\0';
4423
4424     if (element_name[max_chars_per_line] == ' ')
4425       next_pos++;
4426     else
4427     {
4428       int i;
4429
4430       for (i = max_chars_per_line - 1; i >= 0; i--)
4431         if (buffer[i] == ' ')
4432           break;
4433
4434       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
4435       {
4436         buffer[i] = '\0';
4437         next_pos = i + 1;
4438       }
4439     }
4440
4441     DrawTextF(x, y - font_height / 2, font_nr, buffer);
4442
4443     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
4444     buffer[max_chars_per_line] = '\0';
4445
4446     DrawTextF(x, y + font_height / 2, font_nr, buffer);
4447   }
4448 }
4449
4450 static void DrawPropertiesWindow()
4451 {
4452   int xstart = 2;
4453   int ystart = 4;
4454
4455   stick_element_properties_window = FALSE;
4456
4457   /* make sure that previous properties edit mode exists for this element */
4458   if (edit_mode_properties == ED_MODE_PROPERTIES_ADVANCED &&
4459       !IS_CUSTOM_ELEMENT(properties_element))
4460     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
4461
4462 #if 0
4463   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
4464       !checkPropertiesConfig())
4465     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
4466 #endif
4467
4468   if (IS_CUSTOM_ELEMENT(properties_element))
4469     CopyCustomElementPropertiesToEditor(properties_element);
4470
4471   UnmapLevelEditorWindowGadgets();
4472
4473   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
4474   ClearWindow();
4475
4476   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS1_YPOS,
4477            "Element Settings", FONT_TITLE_1);
4478
4479   DrawElementBorder(SX + xstart * MINI_TILEX,
4480                     SY + ystart * MINI_TILEY + MINI_TILEY / 2,
4481                     TILEX, TILEY, FALSE);
4482   DrawGraphicAnimationExt(drawto,
4483                           SX + xstart * MINI_TILEX,
4484                           SY + ystart * MINI_TILEY + MINI_TILEY / 2,
4485                           el2img(properties_element), -1, NO_MASKING);
4486
4487   FrameCounter = 0;     /* restart animation frame counter */
4488
4489   DrawElementName((xstart + 3) * MINI_TILEX, (ystart + 1) * MINI_TILEY,
4490                   properties_element);
4491
4492   DrawPropertiesTabulatorGadgets();
4493
4494   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
4495     DrawPropertiesInfo();
4496   else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG)
4497     DrawPropertiesConfig();
4498   else  /* edit_mode_properties == ED_MODE_PROPERTIES_ADVANCED */
4499     DrawPropertiesAdvanced();
4500 }
4501
4502 static void DrawLineElement(int sx, int sy, int element, boolean change_level)
4503 {
4504   int lx = sx + level_xpos;
4505   int ly = sy + level_ypos;
4506
4507   DrawMiniElement(sx, sy, (element < 0 ? Feld[lx][ly] : element));
4508
4509   if (change_level)
4510     Feld[lx][ly] = element;
4511 }
4512
4513 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
4514                      int element, boolean change_level)
4515 {
4516   if (from_y == to_y)                   /* horizontal line */
4517   {
4518     int x;
4519     int y = from_y;
4520
4521     if (from_x > to_x)
4522       swap_numbers(&from_x, &to_x);
4523
4524     for (x=from_x; x<=to_x; x++)
4525       DrawLineElement(x, y, element, change_level);
4526   }
4527   else if (from_x == to_x)              /* vertical line */
4528   {
4529     int x = from_x;
4530     int y;
4531
4532     if (from_y > to_y)
4533       swap_numbers(&from_y, &to_y);
4534
4535     for (y=from_y; y<=to_y; y++)
4536       DrawLineElement(x, y, element, change_level);
4537   }
4538   else                                  /* diagonal line */
4539   {
4540     int len_x = ABS(to_x - from_x);
4541     int len_y = ABS(to_y - from_y);
4542     int x, y;
4543
4544     if (len_y < len_x)                  /* a < 1 */
4545     {
4546       float a = (float)len_y / (float)len_x;
4547
4548       if (from_x > to_x)
4549         swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
4550
4551       for (x=0; x<=len_x; x++)
4552       {
4553         y = (int)(a * x + 0.5) * (to_y < from_y ? -1 : +1);
4554         DrawLineElement(from_x + x, from_y + y, element, change_level);
4555       }
4556     }
4557     else                                /* a >= 1 */
4558     {
4559       float a = (float)len_x / (float)len_y;
4560
4561       if (from_y > to_y)
4562         swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
4563
4564       for (y=0; y<=len_y; y++)
4565       {
4566         x = (int)(a * y + 0.5) * (to_x < from_x ? -1 : +1);
4567         DrawLineElement(from_x + x, from_y + y, element, change_level);
4568       }
4569     }
4570   }
4571 }
4572
4573 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
4574                     int element, boolean change_level)
4575 {
4576   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
4577   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
4578   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
4579   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
4580 }
4581
4582 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
4583                           int element, boolean change_level)
4584 {
4585   int y;
4586
4587   if (from_y > to_y)
4588     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
4589
4590   for (y=from_y; y<=to_y; y++)
4591     DrawLine(from_x, y, to_x, y, element, change_level);
4592 }
4593
4594 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
4595                        int element, boolean change_level)
4596 {
4597   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
4598   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
4599   int len_x = ABS(to_x - from_x);
4600   int len_y = ABS(to_y - from_y);
4601   int radius, x, y;
4602
4603   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
4604
4605   /* not optimal (some points get drawn twice) but simple,
4606      and fast enough for the few points we are drawing */
4607
4608   for (x=0; x<=radius; x++)
4609   {
4610     int sx, sy, lx, ly;
4611
4612     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
4613
4614     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
4615     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
4616     lx = sx + level_xpos;
4617     ly = sy + level_ypos;
4618
4619     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
4620       DrawLineElement(sx, sy, element, change_level);
4621   }
4622
4623   for (y=0; y<=radius; y++)
4624   {
4625     int sx, sy, lx, ly;
4626
4627     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
4628
4629     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
4630     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
4631     lx = sx + level_xpos;
4632     ly = sy + level_ypos;
4633
4634     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
4635       DrawLineElement(sx, sy, element, change_level);
4636   }
4637 }
4638
4639 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
4640                     int element, boolean change_level)
4641 {
4642   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
4643   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
4644
4645   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
4646 }
4647
4648 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
4649 #if DRAW_CIRCLES_BUTTON_AVAILABLE
4650 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
4651                        int element, boolean change_level)
4652 {
4653   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
4654   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
4655   int mirror_to_x2 = from_x - (to_x2 - from_x);
4656   int mirror_to_y2 = from_y - (to_y2 - from_y);
4657
4658   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
4659   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
4660   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
4661   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element,change_level);
4662 }
4663 #endif
4664
4665 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
4666 {
4667   int from_sx, from_sy;
4668   int to_sx, to_sy;
4669
4670   if (from_x > to_x)
4671     swap_numbers(&from_x, &to_x);
4672
4673   if (from_y > to_y)
4674     swap_numbers(&from_y, &to_y);
4675
4676   from_sx = SX + from_x * MINI_TILEX;
4677   from_sy = SY + from_y * MINI_TILEY;
4678   to_sx = SX + to_x * MINI_TILEX + MINI_TILEX - 1;
4679   to_sy = SY + to_y * MINI_TILEY + MINI_TILEY - 1;
4680
4681   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
4682   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
4683   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
4684   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
4685
4686   if (from_x == to_x && from_y == to_y)
4687     MarkTileDirty(from_x/2, from_y/2);
4688   else
4689     redraw_mask |= REDRAW_FIELD;
4690 }
4691
4692 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
4693                        int element, boolean change_level)
4694 {
4695   if (element == -1 || change_level)
4696     DrawBox(from_x, from_y, to_x, to_y, -1, FALSE);
4697   else
4698     DrawAreaBorder(from_x, from_y, to_x, to_y);
4699 }
4700
4701 /* values for CopyBrushExt() */
4702 #define CB_AREA_TO_BRUSH        0
4703 #define CB_BRUSH_TO_CURSOR      1
4704 #define CB_BRUSH_TO_LEVEL       2
4705 #define CB_DELETE_OLD_CURSOR    3
4706
4707 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
4708                          int button, int mode)
4709 {
4710   static short brush_buffer[MAX_ED_FIELDX][MAX_ED_FIELDY];
4711   static int brush_width, brush_height;
4712   static int last_cursor_x = -1, last_cursor_y = -1;
4713   static boolean delete_old_brush;
4714   int new_element = BUTTON_ELEMENT(button);
4715   int x, y;
4716
4717   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
4718     return;
4719
4720   if (mode == CB_AREA_TO_BRUSH)
4721   {
4722     int from_lx, from_ly;
4723
4724     if (from_x > to_x)
4725       swap_numbers(&from_x, &to_x);
4726
4727     if (from_y > to_y)
4728       swap_numbers(&from_y, &to_y);
4729
4730     brush_width = to_x - from_x + 1;
4731     brush_height = to_y - from_y + 1;
4732
4733     from_lx = from_x + level_xpos;
4734     from_ly = from_y + level_ypos;
4735
4736     for (y=0; y<brush_height; y++)
4737     {
4738       for (x=0; x<brush_width; x++)
4739       {
4740         brush_buffer[x][y] = Feld[from_lx + x][from_ly + y];
4741
4742         if (button != 1)
4743           DrawLineElement(from_x + x, from_y + y, new_element, TRUE);
4744       }
4745     }
4746
4747     if (button != 1)
4748       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
4749
4750     delete_old_brush = FALSE;
4751   }
4752   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
4753            mode == CB_BRUSH_TO_LEVEL)
4754   {
4755     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
4756     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
4757     int cursor_from_x = cursor_x - brush_width / 2;
4758     int cursor_from_y = cursor_y - brush_height / 2;
4759     int border_from_x = cursor_x, border_from_y = cursor_y;
4760     int border_to_x = cursor_x, border_to_y = cursor_y;
4761
4762     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
4763       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
4764
4765     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
4766         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
4767     {
4768       delete_old_brush = FALSE;
4769       return;
4770     }
4771
4772     for (y=0; y<brush_height; y++)
4773     {
4774       for (x=0; x<brush_width; x++)
4775       {
4776         int sx = cursor_from_x + x;
4777         int sy = cursor_from_y + y;
4778         int lx = sx + level_xpos;
4779         int ly = sy + level_ypos;
4780         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
4781         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
4782                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
4783                        brush_buffer[x][y] : new_element);
4784
4785         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
4786         {
4787           if (sx < border_from_x)
4788             border_from_x = sx;
4789           else if (sx > border_to_x)
4790             border_to_x = sx;
4791           if (sy < border_from_y)
4792             border_from_y = sy;
4793           else if (sy > border_to_y)
4794             border_to_y = sy;
4795
4796           DrawLineElement(sx, sy, element, change_level);
4797         }
4798       }
4799     }
4800
4801     if (mode != CB_DELETE_OLD_CURSOR)
4802       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
4803
4804     last_cursor_x = cursor_x;
4805     last_cursor_y = cursor_y;
4806     delete_old_brush = TRUE;
4807   }
4808 }
4809
4810 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
4811                             int button)
4812 {
4813   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
4814 }
4815
4816 static void CopyBrushToLevel(int x, int y, int button)
4817 {
4818   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
4819 }
4820
4821 static void CopyBrushToCursor(int x, int y)
4822 {
4823   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
4824 }
4825
4826 static void DeleteBrushFromCursor()
4827 {
4828   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
4829 }
4830
4831 static void FloodFill(int from_x, int from_y, int fill_element)
4832 {
4833   int i,x,y;
4834   int old_element;
4835   static int check[4][2] = { {-1,0}, {0,-1}, {1,0}, {0,1} };
4836   static int safety = 0;
4837
4838   /* check if starting field still has the desired content */
4839   if (Feld[from_x][from_y] == fill_element)
4840     return;
4841
4842   safety++;
4843
4844   if (safety > lev_fieldx*lev_fieldy)
4845     Error(ERR_EXIT, "Something went wrong in 'FloodFill()'. Please debug.");
4846
4847   old_element = Feld[from_x][from_y];
4848   Feld[from_x][from_y] = fill_element;
4849
4850   for(i=0;i<4;i++)
4851   {
4852     x = from_x + check[i][0];
4853     y = from_y + check[i][1];
4854
4855     if (IN_LEV_FIELD(x,y) && Feld[x][y] == old_element)
4856       FloodFill(x, y, fill_element);
4857   }
4858
4859   safety--;
4860 }
4861
4862 /* values for DrawLevelText() modes */
4863 #define TEXT_INIT               0
4864 #define TEXT_SETCURSOR          1
4865 #define TEXT_WRITECHAR          2
4866 #define TEXT_BACKSPACE          3
4867 #define TEXT_NEWLINE            4
4868 #define TEXT_END                5
4869 #define TEXT_QUERY_TYPING       6
4870
4871 static int DrawLevelText(int sx, int sy, char letter, int mode)
4872 {
4873   static short delete_buffer[MAX_LEV_FIELDX];
4874   static int start_sx, start_sy;
4875   static int last_sx, last_sy;
4876   static boolean typing = FALSE;
4877   int letter_element = EL_CHAR_ASCII0 + letter;
4878   int lx = 0, ly = 0;
4879
4880   /* map lower case letters to upper case and convert special characters */
4881   if (letter >= 'a' && letter <= 'z')
4882     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
4883   else if (letter == 'ä' || letter == 'Ä')
4884     letter_element = EL_CHAR_AUMLAUT;
4885   else if (letter == 'ö' || letter == 'Ö')
4886     letter_element = EL_CHAR_OUMLAUT;
4887   else if (letter == 'ü' || letter == 'Ü')
4888     letter_element = EL_CHAR_UUMLAUT;
4889   else if (letter == '^')
4890     letter_element = EL_CHAR_COPYRIGHT;
4891   else
4892     letter_element = EL_CHAR_ASCII0 + letter;
4893
4894   if (mode != TEXT_INIT)
4895   {
4896     if (!typing)
4897       return FALSE;
4898
4899     if (mode != TEXT_SETCURSOR)
4900     {
4901       sx = last_sx;
4902       sy = last_sy;
4903     }
4904
4905     lx = last_sx + level_xpos;
4906     ly = last_sy + level_ypos;
4907   }
4908
4909   switch (mode)
4910   {
4911     case TEXT_INIT:
4912       if (typing)
4913         DrawLevelText(0, 0, 0, TEXT_END);
4914
4915       typing = TRUE;
4916       start_sx = last_sx = sx;
4917       start_sy = last_sy = sy;
4918       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
4919       break;
4920
4921     case TEXT_SETCURSOR:
4922       DrawMiniElement(last_sx, last_sy, Feld[lx][ly]);
4923       DrawAreaBorder(sx, sy, sx, sy);
4924       last_sx = sx;
4925       last_sy = sy;
4926       break;
4927
4928     case TEXT_WRITECHAR:
4929       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
4930       {
4931         delete_buffer[sx - start_sx] = Feld[lx][ly];
4932         Feld[lx][ly] = letter_element;
4933
4934         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
4935           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
4936         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
4937           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
4938         else
4939           DrawLevelText(0, 0, 0, TEXT_END);
4940       }
4941       break;
4942
4943     case TEXT_BACKSPACE:
4944       if (sx > start_sx)
4945       {
4946         Feld[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
4947         DrawMiniElement(sx - 1, sy, Feld[lx - 1][ly]);
4948         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
4949       }
4950       break;
4951
4952     case TEXT_NEWLINE:
4953       if (sy + 1 < ed_fieldy - 1 && ly + 1 < lev_fieldy - 1)
4954         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
4955       else
4956         DrawLevelText(0, 0, 0, TEXT_END);
4957       break;
4958
4959     case TEXT_END:
4960       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
4961       DrawMiniElement(sx, sy, Feld[lx][ly]);
4962       typing = FALSE;
4963       break;
4964
4965     case TEXT_QUERY_TYPING:
4966       break;
4967
4968     default:
4969       break;
4970   }
4971
4972   return typing;
4973 }
4974
4975 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
4976                           int element, boolean change_level)
4977 {
4978   int lx = sx + level_xpos;
4979   int ly = sy + level_ypos;
4980
4981   if (element == -1)
4982     DrawMiniElement(sx, sy, Feld[lx][ly]);
4983   else
4984     DrawAreaBorder(sx, sy, sx, sy);
4985 }
4986
4987 static void CopyLevelToUndoBuffer(int mode)
4988 {
4989   static boolean accumulated_undo = FALSE;
4990   boolean new_undo_buffer_position = TRUE;
4991   int last_border_element;
4992   int x, y;
4993
4994   switch (mode)
4995   {
4996     case UNDO_IMMEDIATE:
4997       accumulated_undo = FALSE;
4998       break;
4999
5000     case UNDO_ACCUMULATE:
5001       if (accumulated_undo)
5002         new_undo_buffer_position = FALSE;
5003       accumulated_undo = TRUE;
5004       break;
5005
5006     default:
5007       break;
5008   }
5009
5010   if (new_undo_buffer_position)
5011   {
5012     /* new position in undo buffer ring */
5013     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
5014
5015     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
5016       undo_buffer_steps++;
5017   }
5018
5019   for(x=0; x<lev_fieldx; x++)
5020     for(y=0; y<lev_fieldy; y++)
5021       UndoBuffer[undo_buffer_position][x][y] = Feld[x][y];
5022
5023   /* check if drawing operation forces change of border style */
5024   last_border_element = BorderElement;
5025   SetBorderElement();
5026   if (BorderElement != last_border_element)
5027     DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5028 }
5029
5030 static void RandomPlacement(int new_element)
5031 {
5032   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
5033   int num_free_positions;
5034   int num_percentage;
5035   int num_elements;
5036   int x, y;
5037
5038   /* determine number of free positions for the new elements */
5039   /* (maybe this statement should be formatted a bit more readable...) */
5040   num_free_positions = 0;
5041   for (x=0; x<lev_fieldx; x++)
5042     for (y=0; y<lev_fieldy; y++)
5043       if ((free_position[x][y] =
5044            ((random_placement_background_restricted &&
5045              Feld[x][y] == random_placement_background_element) ||
5046             (!random_placement_background_restricted &&
5047              Feld[x][y] != new_element))) == TRUE)
5048         num_free_positions++;
5049
5050   /* determine number of new elements to place there */
5051   num_percentage = num_free_positions * random_placement_value / 100;
5052   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
5053                   num_percentage : random_placement_value);
5054
5055   /* if not more free positions than elements to place, fill whole level */
5056   if (num_elements >= num_free_positions)
5057   {
5058     for (x=0; x<lev_fieldx; x++)
5059       for (y=0; y<lev_fieldy; y++)
5060         Feld[x][y] = new_element;
5061
5062     DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5063     CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5064     return;
5065   }
5066
5067   while (num_elements > 0)
5068   {
5069     x = RND(lev_fieldx);
5070     y = RND(lev_fieldy);
5071
5072     /* don't place element at the same position twice */
5073     if (free_position[x][y])
5074     {
5075       free_position[x][y] = FALSE;
5076       Feld[x][y] = new_element;
5077       num_elements--;
5078     }
5079   }
5080
5081   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5082   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5083 }
5084
5085 void WrapLevel(int dx, int dy)
5086 {
5087   int wrap_dx = lev_fieldx - dx;
5088   int wrap_dy = lev_fieldy - dy;
5089   int x, y;
5090
5091   for(x=0; x<lev_fieldx; x++)
5092     for(y=0; y<lev_fieldy; y++)
5093       FieldBackup[x][y] = Feld[x][y];
5094
5095   for(x=0; x<lev_fieldx; x++)
5096     for(y=0; y<lev_fieldy; y++)
5097       Feld[x][y] =
5098         FieldBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
5099
5100   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5101   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
5102 }
5103
5104 static void HandleDrawingAreas(struct GadgetInfo *gi)
5105 {
5106   static boolean started_inside_drawing_area = FALSE;
5107   int id = gi->custom_id;
5108   boolean button_press_event;
5109   boolean button_release_event;
5110   boolean inside_drawing_area = !gi->event.off_borders;
5111   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
5112   int actual_drawing_function;
5113   int button = gi->event.button;
5114   int new_element = BUTTON_ELEMENT(button);
5115   int sx = gi->event.x, sy = gi->event.y;
5116   int min_sx = 0, min_sy = 0;
5117   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
5118   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
5119   int lx = 0, ly = 0;
5120   int min_lx = 0, min_ly = 0;
5121   int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
5122   int x, y;
5123
5124   /* handle info callback for each invocation of action callback */
5125   gi->callback_info(gi);
5126
5127   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
5128   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
5129
5130   /* make sure to stay inside drawing area boundaries */
5131   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
5132   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
5133
5134   if (draw_level)
5135   {
5136     /* get positions inside level field */
5137     lx = sx + level_xpos;
5138     ly = sy + level_ypos;
5139
5140     if (!IN_LEV_FIELD(lx, ly))
5141       inside_drawing_area = FALSE;
5142
5143     /* make sure to stay inside level field boundaries */
5144     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
5145     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
5146
5147     /* correct drawing area positions accordingly */
5148     sx = lx - level_xpos;
5149     sy = ly - level_ypos;
5150   }
5151
5152   if (button_press_event)
5153     started_inside_drawing_area = inside_drawing_area;
5154
5155   if (!started_inside_drawing_area)
5156     return;
5157
5158   if (!button && !button_release_event)
5159     return;
5160
5161   /* automatically switch to 'single item' drawing mode, if needed */
5162   actual_drawing_function =
5163     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
5164      drawing_function : GADGET_ID_SINGLE_ITEMS);
5165
5166   switch (actual_drawing_function)
5167   {
5168     case GADGET_ID_SINGLE_ITEMS:
5169       if (draw_level)
5170       {
5171         if (button_release_event)
5172         {
5173           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5174
5175           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
5176               !inside_drawing_area)
5177             DeleteBrushFromCursor();
5178         }
5179
5180         if (!button)
5181           break;
5182
5183         if (draw_with_brush)
5184         {
5185           if (!button_release_event)
5186             CopyBrushToLevel(sx, sy, button);
5187         }
5188         else if (new_element != Feld[lx][ly])
5189         {
5190           if (new_element == EL_PLAYER_1)
5191           {
5192             /* remove player at old position */
5193             for(y=0; y<lev_fieldy; y++)
5194             {
5195               for(x=0; x<lev_fieldx; x++)
5196               {
5197                 if (Feld[x][y] == EL_PLAYER_1)
5198                 {
5199                   Feld[x][y] = EL_EMPTY;
5200                   if (x - level_xpos >= 0 && x - level_xpos < ed_fieldx &&
5201                       y - level_ypos >= 0 && y - level_ypos < ed_fieldy)
5202                     DrawMiniElement(x - level_xpos, y - level_ypos,
5203                                     EL_EMPTY);
5204                 }
5205               }
5206             }
5207           }
5208
5209           Feld[lx][ly] = new_element;
5210           DrawMiniElement(sx, sy, new_element);
5211         }
5212       }
5213       else
5214       {
5215         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
5216           DrawMiniGraphicExt(drawto,
5217                              gi->x + sx * MINI_TILEX,
5218                              gi->y + sy * MINI_TILEY,
5219                              el2edimg(new_element));
5220         else
5221           DrawGraphicExt(drawto,
5222                          gi->x + sx * TILEX,
5223                          gi->y + sy * TILEY,
5224                          el2img(new_element), 0);
5225
5226         if (id == GADGET_ID_AMOEBA_CONTENT)
5227           level.amoeba_content = new_element;
5228         else if (id == GADGET_ID_CUSTOM_GRAPHIC)
5229         {
5230           new_element = GFX_ELEMENT(new_element);
5231           custom_element.gfx_element = new_element;
5232           element_info[properties_element] = custom_element;
5233
5234           ModifyEditorElementList();
5235           RedrawDrawingElements();
5236
5237           FrameCounter = 0;     /* restart animation frame counter */
5238         }
5239         else if (id == GADGET_ID_CUSTOM_CONTENT)
5240         {
5241           custom_element.content[sx][sy] = new_element;
5242           element_info[properties_element] = custom_element;
5243         }
5244         else if (id == GADGET_ID_CUSTOM_CHANGED)
5245         {
5246           custom_element.change.successor = new_element;
5247           element_info[properties_element] = custom_element;
5248         }
5249         else if (id == GADGET_ID_RANDOM_BACKGROUND)
5250           random_placement_background_element = new_element;
5251         else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
5252                  id <= GADGET_ID_ELEMENT_CONTENT_7)
5253           level.yamyam_content[id - GADGET_ID_ELEMENT_CONTENT_0][sx][sy] =
5254             new_element;
5255       }
5256       break;
5257
5258     case GADGET_ID_CONNECTED_ITEMS:
5259       {
5260         static int last_sx = -1;
5261         static int last_sy = -1;
5262
5263         if (button_release_event)
5264           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5265
5266         if (button)
5267         {
5268           if (!button_press_event)
5269             DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
5270
5271           last_sx = sx;
5272           last_sy = sy;
5273         }
5274       }
5275       break;
5276
5277     case GADGET_ID_LINE:
5278     case GADGET_ID_ARC:
5279     case GADGET_ID_RECTANGLE:
5280     case GADGET_ID_FILLED_BOX:
5281     case GADGET_ID_GRAB_BRUSH:
5282     case GADGET_ID_TEXT:
5283       {
5284         static int last_sx = -1;
5285         static int last_sy = -1;
5286         static int start_sx = -1;
5287         static int start_sy = -1;
5288         void (*draw_func)(int, int, int, int, int, boolean);
5289
5290         if (drawing_function == GADGET_ID_LINE)
5291           draw_func = DrawLine;
5292         else if (drawing_function == GADGET_ID_ARC)
5293           draw_func = DrawArc;
5294         else if (drawing_function == GADGET_ID_RECTANGLE)
5295           draw_func = DrawBox;
5296         else if (drawing_function == GADGET_ID_FILLED_BOX)
5297           draw_func = DrawFilledBox;
5298         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
5299           draw_func = SelectArea;
5300         else /* (drawing_function == GADGET_ID_TEXT) */
5301           draw_func = SetTextCursor;
5302
5303         if (button_press_event)
5304         {
5305           draw_func(sx, sy, sx, sy, new_element, FALSE);
5306           start_sx = last_sx = sx;
5307           start_sy = last_sy = sy;
5308
5309           if (drawing_function == GADGET_ID_TEXT)
5310             DrawLevelText(0, 0, 0, TEXT_END);
5311         }
5312         else if (button_release_event)
5313         {
5314           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
5315           if (drawing_function == GADGET_ID_GRAB_BRUSH)
5316           {
5317             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
5318             CopyBrushToCursor(sx, sy);
5319             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
5320                           MB_LEFTBUTTON);
5321             draw_with_brush = TRUE;
5322           }
5323           else if (drawing_function == GADGET_ID_TEXT)
5324             DrawLevelText(sx, sy, 0, TEXT_INIT);
5325           else
5326             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5327         }
5328         else if (last_sx != sx || last_sy != sy)
5329         {
5330           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
5331           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
5332           last_sx = sx;
5333           last_sy = sy;
5334         }
5335       }
5336       break;
5337
5338     case GADGET_ID_FLOOD_FILL:
5339       if (button_press_event && Feld[lx][ly] != new_element)
5340       {
5341         FloodFill(lx, ly, new_element);
5342         DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5343         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5344       }
5345       break;
5346
5347     case GADGET_ID_PICK_ELEMENT:
5348       if (button_release_event)
5349         ClickOnGadget(level_editor_gadget[last_drawing_function],
5350                       MB_LEFTBUTTON);
5351       else if (draw_level)
5352         PickDrawingElement(button, Feld[lx][ly]);
5353       else if (id == GADGET_ID_AMOEBA_CONTENT)
5354         PickDrawingElement(button, level.amoeba_content);
5355       else if (id == GADGET_ID_CUSTOM_GRAPHIC)
5356         PickDrawingElement(button, custom_element.gfx_element);
5357       else if (id == GADGET_ID_CUSTOM_CONTENT)
5358         PickDrawingElement(button, custom_element.content[sx][sy]);
5359       else if (id == GADGET_ID_CUSTOM_CHANGED)
5360         PickDrawingElement(button, custom_element.change.successor);
5361       else if (id == GADGET_ID_RANDOM_BACKGROUND)
5362         PickDrawingElement(button, random_placement_background_element);
5363       else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
5364                id <= GADGET_ID_ELEMENT_CONTENT_7)
5365       {
5366         int i = id - GADGET_ID_ELEMENT_CONTENT_0;
5367
5368         PickDrawingElement(button, level.yamyam_content[i][sx][sy]);
5369       }
5370
5371       break;
5372
5373     default:
5374       break;
5375   }
5376 }
5377
5378 static void HandleCounterButtons(struct GadgetInfo *gi)
5379 {
5380   int gadget_id = gi->custom_id;
5381   int counter_id = gi->custom_type_id;
5382   int button = gi->event.button;
5383   int *counter_value = counterbutton_info[counter_id].value;
5384   int step = BUTTON_STEPSIZE(button) *
5385     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
5386
5387   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
5388   {
5389     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
5390     boolean released = (gi->event.type == GD_EVENT_RELEASED);
5391     boolean level_changed = LevelChanged();
5392
5393     if ((level_changed && pressed) || (!level_changed && released))
5394       return;
5395
5396     if (level_changed && !Request("Level has changed! Discard changes ?",
5397                                   REQ_ASK))
5398     {
5399       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
5400         ModifyEditorCounter(counter_id, *counter_value);
5401       return;
5402     }
5403   }
5404
5405   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
5406     *counter_value = gi->text.number_value;
5407   else
5408     ModifyEditorCounter(counter_id, *counter_value + step);
5409
5410   switch (counter_id)
5411   {
5412     case ED_COUNTER_ID_ELEMENT_CONTENT:
5413       DrawElementContentAreas();
5414       break;
5415
5416     case ED_COUNTER_ID_LEVEL_XSIZE:
5417     case ED_COUNTER_ID_LEVEL_YSIZE:
5418       lev_fieldx = level.fieldx;
5419       lev_fieldy = level.fieldy;
5420       break;
5421
5422     case ED_COUNTER_ID_SELECT_LEVEL:
5423       LoadLevel(level_nr);
5424       TapeErase();
5425       ResetUndoBuffer();
5426       DrawEditModeWindow();
5427       break;
5428
5429     default:
5430       break;
5431   }
5432
5433   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
5434        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
5435       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
5436        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
5437     CopyCustomElementPropertiesToGame(properties_element);
5438 }
5439
5440 static void HandleTextInputGadgets(struct GadgetInfo *gi)
5441 {
5442   strcpy(textinput_info[gi->custom_type_id].value, gi->text.value);
5443 }
5444
5445 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
5446 {
5447   int type_id = gi->custom_type_id;
5448
5449   *selectbox_info[type_id].index = gi->selectbox.index;
5450   *selectbox_info[type_id].value =
5451     selectbox_info[type_id].options[gi->selectbox.index].value;
5452
5453   if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
5454        type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
5455       (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
5456        type_id <= ED_SELECTBOX_ID_CHANGE_LAST))
5457     CopyCustomElementPropertiesToGame(properties_element);
5458 }
5459
5460 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
5461 {
5462   if (gi->custom_type_id >= ED_TEXTBUTTON_ID_PROPERTIES_INFO &&
5463       gi->custom_type_id <= ED_TEXTBUTTON_ID_PROPERTIES_ADVANCED)
5464   {
5465     edit_mode_properties = gi->custom_type_id;
5466
5467     DrawPropertiesWindow();
5468   }
5469 }
5470
5471 static void HandleRadiobuttons(struct GadgetInfo *gi)
5472 {
5473   *radiobutton_info[gi->custom_type_id].value =
5474     radiobutton_info[gi->custom_type_id].checked_value;
5475 }
5476
5477 static void HandleCheckbuttons(struct GadgetInfo *gi)
5478 {
5479   int type_id = gi->custom_type_id;
5480
5481   *checkbutton_info[type_id].value ^= TRUE;
5482
5483   if ((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
5484        type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
5485       (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
5486        type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST))
5487     CopyCustomElementPropertiesToGame(properties_element);
5488
5489   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
5490   {
5491     ModifyEditorElementList();
5492     RedrawDrawingElements();
5493   }
5494 }
5495
5496 static void HandleControlButtons(struct GadgetInfo *gi)
5497 {
5498   int id = gi->custom_id;
5499   int button = gi->event.button;
5500   int step = BUTTON_STEPSIZE(button);
5501   int new_element = BUTTON_ELEMENT(button);
5502   int x, y;
5503
5504   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
5505     DrawLevelText(0, 0, 0, TEXT_END);
5506
5507   if (id < ED_NUM_CTRL1_BUTTONS && id != GADGET_ID_PROPERTIES &&
5508       id != GADGET_ID_PICK_ELEMENT && edit_mode != ED_MODE_DRAWING &&
5509       drawing_function != GADGET_ID_PICK_ELEMENT)
5510   {
5511     DrawDrawingWindow();
5512     edit_mode = ED_MODE_DRAWING;
5513   }
5514
5515   switch (id)
5516   {
5517     case GADGET_ID_SCROLL_LEFT:
5518       if (level_xpos >= 0)
5519       {
5520         if (lev_fieldx < ed_fieldx - 2)
5521           break;
5522
5523         level_xpos -= step;
5524         if (level_xpos < -1)
5525           level_xpos = -1;
5526         if (button == 1)
5527           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
5528         else
5529           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5530
5531         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
5532                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
5533       }
5534       break;
5535
5536     case GADGET_ID_SCROLL_RIGHT:
5537       if (level_xpos <= lev_fieldx - ed_fieldx)
5538       {
5539         if (lev_fieldx < ed_fieldx - 2)
5540           break;
5541
5542         level_xpos += step;
5543         if (level_xpos > lev_fieldx - ed_fieldx + 1)
5544           level_xpos = lev_fieldx - ed_fieldx + 1;
5545         if (button == 1)
5546           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
5547         else
5548           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5549
5550         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
5551                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
5552       }
5553       break;
5554
5555     case GADGET_ID_SCROLL_UP:
5556       if (level_ypos >= 0)
5557       {
5558         if (lev_fieldy < ed_fieldy - 2)
5559           break;
5560
5561         level_ypos -= step;
5562         if (level_ypos < -1)
5563           level_ypos = -1;
5564         if (button == 1)
5565           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
5566         else
5567           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5568
5569         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
5570                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
5571       }
5572       break;
5573
5574     case GADGET_ID_SCROLL_DOWN:
5575       if (level_ypos <= lev_fieldy - ed_fieldy)
5576       {
5577         if (lev_fieldy < ed_fieldy - 2)
5578           break;
5579
5580         level_ypos += step;
5581         if (level_ypos > lev_fieldy - ed_fieldy + 1)
5582           level_ypos = lev_fieldy - ed_fieldy + 1;
5583         if (button == 1)
5584           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_UP);
5585         else
5586           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5587
5588         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
5589                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
5590       }
5591       break;
5592
5593     case GADGET_ID_SCROLL_HORIZONTAL:
5594       level_xpos = gi->event.item_position - 1;
5595       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5596       break;
5597
5598     case GADGET_ID_SCROLL_VERTICAL:
5599       level_ypos = gi->event.item_position - 1;
5600       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5601       break;
5602
5603     case GADGET_ID_SCROLL_LIST_UP:
5604     case GADGET_ID_SCROLL_LIST_DOWN:
5605     case GADGET_ID_SCROLL_LIST_VERTICAL:
5606       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
5607         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
5608       else
5609       {
5610         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
5611         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
5612
5613         if (element_shift < 0)
5614           element_shift = 0;
5615         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
5616           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
5617
5618         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
5619                      GDI_SCROLLBAR_ITEM_POSITION,
5620                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
5621       }
5622
5623       ModifyEditorElementList();
5624
5625       break;
5626
5627     case GADGET_ID_WRAP_LEFT:
5628       WrapLevel(-step, 0);
5629       break;
5630
5631     case GADGET_ID_WRAP_RIGHT:
5632       WrapLevel(step, 0);
5633       break;
5634
5635     case GADGET_ID_WRAP_UP:
5636       WrapLevel(0, -step);
5637       break;
5638
5639     case GADGET_ID_WRAP_DOWN:
5640       WrapLevel(0, step);
5641       break;
5642
5643     case GADGET_ID_SINGLE_ITEMS:
5644     case GADGET_ID_CONNECTED_ITEMS:
5645     case GADGET_ID_LINE:
5646     case GADGET_ID_ARC:
5647     case GADGET_ID_TEXT:
5648     case GADGET_ID_RECTANGLE:
5649     case GADGET_ID_FILLED_BOX:
5650     case GADGET_ID_FLOOD_FILL:
5651     case GADGET_ID_GRAB_BRUSH:
5652     case GADGET_ID_PICK_ELEMENT:
5653       if (drawing_function != GADGET_ID_PICK_ELEMENT)
5654         last_drawing_function = drawing_function;
5655       drawing_function = id;
5656       draw_with_brush = FALSE;
5657       break;
5658
5659     case GADGET_ID_RANDOM_PLACEMENT:
5660       RandomPlacement(new_element);
5661       break;
5662
5663     case GADGET_ID_PROPERTIES:
5664       if (edit_mode != ED_MODE_PROPERTIES)
5665       {
5666         properties_element = new_element;
5667         DrawPropertiesWindow();
5668         edit_mode = ED_MODE_PROPERTIES;
5669       }
5670       else
5671       {
5672         DrawDrawingWindow();
5673         edit_mode = ED_MODE_DRAWING;
5674       }
5675       break;
5676
5677     case GADGET_ID_UNDO:
5678       if (undo_buffer_steps == 0)
5679       {
5680         Request("Undo buffer empty !", REQ_CONFIRM);
5681         break;
5682       }
5683
5684       if (edit_mode != ED_MODE_DRAWING)
5685       {
5686         DrawDrawingWindow();
5687         edit_mode = ED_MODE_DRAWING;
5688       }
5689
5690       undo_buffer_position =
5691         (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
5692       undo_buffer_steps--;
5693
5694       for(x=0; x<lev_fieldx; x++)
5695         for(y=0; y<lev_fieldy; y++)
5696           Feld[x][y] = UndoBuffer[undo_buffer_position][x][y];
5697       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos,level_ypos);
5698       break;
5699
5700     case GADGET_ID_INFO:
5701       if (edit_mode != ED_MODE_INFO)
5702       {
5703         DrawLevelInfoWindow();
5704         edit_mode = ED_MODE_INFO;
5705       }
5706       else
5707       {
5708         DrawDrawingWindow();
5709         edit_mode = ED_MODE_DRAWING;
5710       }
5711       break;
5712
5713     case GADGET_ID_CLEAR:
5714       if (edit_mode != ED_MODE_DRAWING)
5715       {
5716         DrawDrawingWindow();
5717         edit_mode = ED_MODE_DRAWING;
5718       }
5719
5720       for(x=0; x<MAX_LEV_FIELDX; x++)
5721         for(y=0; y<MAX_LEV_FIELDY; y++)
5722           Feld[x][y] = (button == 1 ? EL_EMPTY : new_element);
5723       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
5724
5725       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5726       break;
5727
5728     case GADGET_ID_SAVE:
5729       if (leveldir_current->readonly)
5730       {
5731         Request("This level is read only !", REQ_CONFIRM);
5732         break;
5733       }
5734
5735       if (!LevelContainsPlayer)
5736         Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
5737       else
5738       {
5739         if (Request("Save this level and kill the old ?", REQ_ASK))
5740         {
5741           CopyPlayfield(Feld, Ur);
5742
5743           SaveLevel(level_nr);
5744         }
5745       }
5746       break;
5747
5748     case GADGET_ID_TEST:
5749       if (!LevelContainsPlayer)
5750         Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
5751       else
5752       {
5753         if (LevelChanged())
5754           level.game_version = GAME_VERSION_ACTUAL;
5755
5756         CopyPlayfield(Ur, FieldBackup);
5757         CopyPlayfield(Feld, Ur);
5758
5759         UnmapLevelEditorGadgets();
5760         UndrawSpecialEditorDoor();
5761
5762         CloseDoor(DOOR_CLOSE_ALL);
5763
5764         DrawCompleteVideoDisplay();
5765
5766         if (setup.autorecord)
5767           TapeStartRecording();
5768
5769         level_editor_test_game = TRUE;
5770         game_status = GAME_MODE_PLAYING;
5771
5772         InitGame();
5773       }
5774       break;
5775
5776     case GADGET_ID_EXIT:
5777       RequestExitLevelEditor(TRUE);     /* if level has changed, ask user */
5778       break;
5779
5780     default:
5781       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
5782           id <= GADGET_ID_ELEMENTLIST_LAST)
5783       {
5784         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
5785         int new_element = editor_elements[element_position + element_shift];
5786
5787         PickDrawingElement(button, new_element);
5788
5789         if (!stick_element_properties_window &&
5790             drawing_function != GADGET_ID_PICK_ELEMENT)
5791         {
5792           properties_element = new_element;
5793           if (edit_mode == ED_MODE_PROPERTIES)
5794             DrawPropertiesWindow();
5795         }
5796
5797         if (drawing_function == GADGET_ID_PICK_ELEMENT)
5798           ClickOnGadget(level_editor_gadget[last_drawing_function],
5799                         MB_LEFTBUTTON);
5800       }
5801 #ifdef DEBUG
5802       else if (gi->event.type == GD_EVENT_PRESSED)
5803         printf("default: HandleControlButtons: GD_EVENT_PRESSED(%d)\n", id);
5804       else if (gi->event.type == GD_EVENT_RELEASED)
5805         printf("default: HandleControlButtons: GD_EVENT_RELEASED(%d)\n", id);
5806       else if (gi->event.type == GD_EVENT_MOVING)
5807         printf("default: HandleControlButtons: GD_EVENT_MOVING(%d)\n", id);
5808       else
5809         printf("default: HandleControlButtons: ? (id == %d)\n", id);
5810 #endif
5811       break;
5812   }
5813 }
5814
5815 void HandleLevelEditorKeyInput(Key key)
5816 {
5817   char letter = getCharFromKey(key);
5818   int button = MB_LEFTBUTTON;
5819
5820   if (drawing_function == GADGET_ID_TEXT &&
5821       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
5822   {
5823     if (letter)
5824       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
5825     else if (key == KSYM_Delete || key == KSYM_BackSpace)
5826       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
5827     else if (key == KSYM_Return)
5828       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
5829     else if (key == KSYM_Escape)
5830       DrawLevelText(0, 0, 0, TEXT_END);
5831   }
5832   else if (button_status == MB_RELEASED)
5833   {
5834     int i, id = GADGET_ID_NONE;
5835
5836     switch (key)
5837     {
5838       case KSYM_Left:
5839         id = GADGET_ID_SCROLL_LEFT;
5840         break;
5841       case KSYM_Right:
5842         id = GADGET_ID_SCROLL_RIGHT;
5843         break;
5844       case KSYM_Up:
5845         id = GADGET_ID_SCROLL_UP;
5846         break;
5847       case KSYM_Down:
5848         id = GADGET_ID_SCROLL_DOWN;
5849         break;
5850       case KSYM_Page_Up:
5851         id = GADGET_ID_SCROLL_LIST_UP;
5852         button = MB_RIGHTBUTTON;
5853         break;
5854       case KSYM_Page_Down:
5855         id = GADGET_ID_SCROLL_LIST_DOWN;
5856         button = MB_RIGHTBUTTON;
5857         break;
5858
5859       case KSYM_Escape:
5860         if (edit_mode == ED_MODE_DRAWING)
5861         {
5862           RequestExitLevelEditor(setup.ask_on_escape);
5863         }
5864         else
5865         {
5866           DrawDrawingWindow();
5867           edit_mode = ED_MODE_DRAWING;
5868         }
5869         break;
5870
5871       default:
5872         break;
5873     }
5874
5875     if (id != GADGET_ID_NONE)
5876       ClickOnGadget(level_editor_gadget[id], button);
5877     else if (letter == '.')
5878       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
5879     else if (key == KSYM_Return || key == setup.shortcut.toggle_pause)
5880       ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
5881     else
5882       for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
5883         if (letter && letter == control_info[i].shortcut)
5884           if (!anyTextGadgetActive())
5885             ClickOnGadget(level_editor_gadget[i], button);
5886   }
5887 }
5888
5889 void HandleLevelEditorIdle()
5890 {
5891   static unsigned long action_delay = 0;
5892   unsigned long action_delay_value = GameFrameDelay;
5893   int xpos = 1, ypos = 2;
5894
5895   if (edit_mode != ED_MODE_PROPERTIES)
5896     return;
5897
5898   if (!DelayReached(&action_delay, action_delay_value))
5899     return;
5900
5901   DrawGraphicAnimationExt(drawto,
5902                           SX + xpos * TILEX,
5903                           SY + ypos * TILEY + MINI_TILEY / 2,
5904                           el2img(properties_element), -1, NO_MASKING);
5905
5906   MarkTileDirty(xpos, ypos);
5907   MarkTileDirty(xpos, ypos + 1);
5908
5909   FrameCounter++;       /* increase animation frame counter */
5910 }
5911
5912 void ClearEditorGadgetInfoText()
5913 {
5914   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
5915 }
5916
5917 void HandleEditorGadgetInfoText(void *ptr)
5918 {
5919   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
5920   char infotext[MAX_OUTPUT_LINESIZE + 1];
5921   char shortcut[MAX_OUTPUT_LINESIZE + 1];
5922   int max_infotext_len = getMaxInfoTextLength();
5923
5924   if (game_status != GAME_MODE_EDITOR)
5925     return;
5926
5927   ClearEditorGadgetInfoText();
5928
5929   if (gi->event.type == GD_EVENT_INFO_LEAVING)
5930     return;
5931
5932   /* misuse this function to delete brush cursor, if needed */
5933   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
5934     DeleteBrushFromCursor();
5935
5936   if (gi == NULL || gi->info_text == NULL)
5937     return;
5938
5939   strncpy(infotext, gi->info_text, max_infotext_len);
5940   infotext[max_infotext_len] = '\0';
5941
5942   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
5943   {
5944     int key = control_info[gi->custom_id].shortcut;
5945
5946     if (key)
5947     {
5948       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)      /* special case 1 */
5949         sprintf(shortcut, " ('.' or '%c')", key);
5950       else if (gi->custom_id == GADGET_ID_TEST)         /* special case 2 */
5951         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
5952       else                                              /* normal case */
5953         sprintf(shortcut, " ('%s%c')",
5954                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
5955
5956       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
5957         strcat(infotext, shortcut);
5958     }
5959   }
5960
5961   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, FONT_TEXT_2);
5962 }
5963
5964 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
5965 {
5966   static int start_lx, start_ly;
5967   char *infotext;
5968   int id = gi->custom_id;
5969   int sx = gi->event.x;
5970   int sy = gi->event.y;
5971   int lx = sx + level_xpos;
5972   int ly = sy + level_ypos;
5973   int min_sx = 0, min_sy = 0;
5974   int max_sx = gi->drawing.area_xsize - 1;
5975   int max_sy = gi->drawing.area_ysize - 1;
5976
5977   ClearEditorGadgetInfoText();
5978
5979   if (gi->event.type == GD_EVENT_INFO_LEAVING)
5980     return;
5981
5982   /* make sure to stay inside drawing area boundaries */
5983   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
5984   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
5985
5986   if (id == GADGET_ID_DRAWING_LEVEL)
5987   {
5988     if (button_status)
5989     {
5990       int min_lx = 0, min_ly = 0;
5991       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
5992
5993       /* get positions inside level field */
5994       lx = sx + level_xpos;
5995       ly = sy + level_ypos;
5996
5997       /* make sure to stay inside level field boundaries */
5998       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
5999       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
6000
6001       /* correct drawing area positions accordingly */
6002       sx = lx - level_xpos;
6003       sy = ly - level_ypos;
6004     }
6005
6006     if (IN_ED_FIELD(sx,sy) && IN_LEV_FIELD(lx, ly))
6007     {
6008       if (button_status)        /* if (gi->state == GD_BUTTON_PRESSED) */
6009       {
6010         if (gi->event.type == GD_EVENT_PRESSED)
6011         {
6012           start_lx = lx;
6013           start_ly = ly;
6014         }
6015
6016         switch (drawing_function)
6017         {
6018           case GADGET_ID_SINGLE_ITEMS:
6019             infotext = "Drawing single items";
6020             break;
6021           case GADGET_ID_CONNECTED_ITEMS:
6022             infotext = "Drawing connected items";
6023             break;
6024           case GADGET_ID_LINE:
6025             infotext = "Drawing line";
6026             break;
6027           case GADGET_ID_ARC:
6028             infotext = "Drawing arc";
6029             break;
6030           case GADGET_ID_TEXT:
6031             infotext = "Setting text cursor";
6032             break;
6033           case GADGET_ID_RECTANGLE:
6034             infotext = "Drawing rectangle";
6035             break;
6036           case GADGET_ID_FILLED_BOX:
6037             infotext = "Drawing filled box";
6038             break;
6039           case GADGET_ID_FLOOD_FILL:
6040             infotext = "Flood fill";
6041             break;
6042           case GADGET_ID_GRAB_BRUSH:
6043             infotext = "Grabbing brush";
6044             break;
6045           case GADGET_ID_PICK_ELEMENT:
6046             infotext = "Picking element";
6047             break;
6048
6049           default:
6050             infotext = "Drawing position";
6051             break;
6052         }
6053
6054         if (drawing_function == GADGET_ID_PICK_ELEMENT)
6055           DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6056                     "%s: %d, %d", infotext, lx, ly);
6057         else
6058           DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6059                     "%s: %d, %d", infotext,
6060                     ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
6061       }
6062       else if (drawing_function == GADGET_ID_PICK_ELEMENT)
6063         DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6064                   "%s", getElementInfoText(Feld[lx][ly]));
6065       else
6066         DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6067                   "Level position: %d, %d", lx, ly);
6068     }
6069
6070     /* misuse this function to draw brush cursor, if needed */
6071     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
6072     {
6073       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
6074         CopyBrushToCursor(sx, sy);
6075       else
6076         DeleteBrushFromCursor();
6077     }
6078   }
6079   else if (drawing_function == GADGET_ID_PICK_ELEMENT)
6080   {
6081     if (id == GADGET_ID_AMOEBA_CONTENT)
6082       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6083                 "%s", getElementInfoText(level.amoeba_content));
6084     else if (id == GADGET_ID_CUSTOM_GRAPHIC)
6085       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6086                 "%s", getElementInfoText(custom_element.use_gfx_element));
6087     else if (id == GADGET_ID_CUSTOM_CONTENT)
6088       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6089                 "%s", getElementInfoText(custom_element.content[sx][sy]));
6090     else if (id == GADGET_ID_CUSTOM_CHANGED)
6091       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6092                 "%s", getElementInfoText(custom_element.change.successor));
6093     else if (id == GADGET_ID_RANDOM_BACKGROUND)
6094       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6095                 "%s", getElementInfoText(random_placement_background_element));
6096     else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
6097              id <= GADGET_ID_ELEMENT_CONTENT_7)
6098     {
6099       int i = id - GADGET_ID_ELEMENT_CONTENT_0;
6100
6101       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6102                 "%s", getElementInfoText(level.yamyam_content[i][sx][sy]));
6103     }
6104   }
6105   else
6106   {
6107     if (id == GADGET_ID_AMOEBA_CONTENT)
6108       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6109                 "Amoeba content");
6110     else if (id == GADGET_ID_CUSTOM_GRAPHIC)
6111       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6112                 "Custom graphic element");
6113     else if (id == GADGET_ID_CUSTOM_CONTENT)
6114       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6115                 "Custom element content position: %d, %d", sx, sy);
6116     else if (id == GADGET_ID_CUSTOM_CHANGED)
6117       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6118                 "New element after change");
6119     else if (id == GADGET_ID_RANDOM_BACKGROUND)
6120       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6121                 "Random placement background");
6122     else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
6123              id <= GADGET_ID_ELEMENT_CONTENT_7)
6124       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6125                 "Content area %d position: %d, %d",
6126                 id - GADGET_ID_ELEMENT_CONTENT_0 + 1, sx, sy);
6127   }
6128 }
6129
6130 void RequestExitLevelEditor(boolean ask_if_level_has_changed)
6131 {
6132   if (!ask_if_level_has_changed ||
6133       !LevelChanged() ||
6134       Request("Level has changed! Exit without saving ?",
6135               REQ_ASK | REQ_STAY_OPEN))
6136   {
6137     CloseDoor(DOOR_CLOSE_1);
6138     /*
6139     CloseDoor(DOOR_CLOSE_ALL);
6140     */
6141     game_status = GAME_MODE_MAIN;
6142     DrawMainMenu();
6143   }
6144   else
6145   {
6146     CloseDoor(DOOR_CLOSE_1);
6147     BlitBitmap(bitmap_db_door, bitmap_db_door,
6148                DOOR_GFX_PAGEX2, DOOR_GFX_PAGEY1, DXSIZE,DYSIZE,
6149                DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
6150     OpenDoor(DOOR_OPEN_1);
6151   }
6152 }