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_PLAYER_ACTION  (GADGET_ID_SELECTBOX_FIRST + 7)
 367 #define GADGET_ID_CHANGE_CAUSE          (GADGET_ID_SELECTBOX_FIRST + 8)
 368
 369 /* textbutton identifiers */
 370 #define GADGET_ID_TEXTBUTTON_FIRST      (GADGET_ID_SELECTBOX_FIRST + 9)
 371
 372 #define GADGET_ID_PROPERTIES_INFO       (GADGET_ID_TEXTBUTTON_FIRST + 0)
 373 #define GADGET_ID_PROPERTIES_CONFIG     (GADGET_ID_TEXTBUTTON_FIRST + 1)
 374 #define GADGET_ID_PROPERTIES_ADVANCED   (GADGET_ID_TEXTBUTTON_FIRST + 2)
 375 #define GADGET_ID_SAVE_AS_TEMPLATE      (GADGET_ID_TEXTBUTTON_FIRST + 3)
 376
 377 /* gadgets for scrolling of drawing area */
 378 #define GADGET_ID_SCROLLING_FIRST       (GADGET_ID_TEXTBUTTON_FIRST + 4)
 379
 380 #define GADGET_ID_SCROLL_UP             (GADGET_ID_SCROLLING_FIRST + 0)
 381 #define GADGET_ID_SCROLL_DOWN           (GADGET_ID_SCROLLING_FIRST + 1)
 382 #define GADGET_ID_SCROLL_LEFT           (GADGET_ID_SCROLLING_FIRST + 2)
 383 #define GADGET_ID_SCROLL_RIGHT          (GADGET_ID_SCROLLING_FIRST + 3)
 384 #define GADGET_ID_SCROLL_HORIZONTAL     (GADGET_ID_SCROLLING_FIRST + 4)
 385 #define GADGET_ID_SCROLL_VERTICAL       (GADGET_ID_SCROLLING_FIRST + 5)
 386
 387 /* gadgets for scrolling element list */
 388 #define GADGET_ID_SCROLLING_LIST_FIRST  (GADGET_ID_SCROLLING_FIRST + 6)
 389
 390 #define GADGET_ID_SCROLL_LIST_UP        (GADGET_ID_SCROLLING_LIST_FIRST + 0)
 391 #define GADGET_ID_SCROLL_LIST_DOWN      (GADGET_ID_SCROLLING_LIST_FIRST + 1)
 392 #define GADGET_ID_SCROLL_LIST_VERTICAL  (GADGET_ID_SCROLLING_LIST_FIRST + 2)
 393
 394 /* checkbuttons for level/element properties */
 395 #define GADGET_ID_CHECKBUTTON_FIRST     (GADGET_ID_SCROLLING_LIST_FIRST + 3)
 396
 397 #define GADGET_ID_RANDOM_PERCENTAGE     (GADGET_ID_CHECKBUTTON_FIRST + 0)
 398 #define GADGET_ID_RANDOM_QUANTITY       (GADGET_ID_CHECKBUTTON_FIRST + 1)
 399 #define GADGET_ID_RANDOM_RESTRICTED     (GADGET_ID_CHECKBUTTON_FIRST + 2)
 400 #define GADGET_ID_DOUBLE_SPEED          (GADGET_ID_CHECKBUTTON_FIRST + 3)
 401 #define GADGET_ID_GRAVITY               (GADGET_ID_CHECKBUTTON_FIRST + 4)
 402 #define GADGET_ID_STICK_ELEMENT         (GADGET_ID_CHECKBUTTON_FIRST + 5)
 403 #define GADGET_ID_EM_SLIPPERY_GEMS      (GADGET_ID_CHECKBUTTON_FIRST + 6)
 404 #define GADGET_ID_CUSTOM_EXPLODE_RESULT (GADGET_ID_CHECKBUTTON_FIRST + 7)
 405 #define GADGET_ID_CUSTOM_WALK_TO_OBJECT (GADGET_ID_CHECKBUTTON_FIRST + 8)
 406 #define GADGET_ID_CUSTOM_DEADLY         (GADGET_ID_CHECKBUTTON_FIRST + 9)
 407 #define GADGET_ID_CUSTOM_CAN_MOVE       (GADGET_ID_CHECKBUTTON_FIRST + 10)
 408 #define GADGET_ID_CUSTOM_CAN_FALL       (GADGET_ID_CHECKBUTTON_FIRST + 11)
 409 #define GADGET_ID_CUSTOM_CAN_SMASH      (GADGET_ID_CHECKBUTTON_FIRST + 12)
 410 #define GADGET_ID_CUSTOM_SLIPPERY       (GADGET_ID_CHECKBUTTON_FIRST + 13)
 411 #define GADGET_ID_CUSTOM_WALKABLE       (GADGET_ID_CHECKBUTTON_FIRST + 14)
 412 #define GADGET_ID_CUSTOM_USE_GRAPHIC    (GADGET_ID_CHECKBUTTON_FIRST + 15)
 413 #define GADGET_ID_CUSTOM_USE_TEMPLATE   (GADGET_ID_CHECKBUTTON_FIRST + 16)
 414 #define GADGET_ID_CUSTOM_CHANGEABLE     (GADGET_ID_CHECKBUTTON_FIRST + 17)
 415 #define GADGET_ID_CHANGE_DELAY          (GADGET_ID_CHECKBUTTON_FIRST + 18)
 416 #define GADGET_ID_CHANGE_BY_PLAYER      (GADGET_ID_CHECKBUTTON_FIRST + 19)
 417
 418 /* gadgets for buttons in element list */
 419 #define GADGET_ID_ELEMENTLIST_FIRST     (GADGET_ID_CHECKBUTTON_FIRST + 20)
 420 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 421                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 422
 423 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 424
 425 /* radio button numbers */
 426 #define RADIO_NR_NONE                   0
 427 #define RADIO_NR_DRAWING_TOOLBOX        1
 428 #define RADIO_NR_RANDOM_ELEMENTS        2
 429
 430 /* values for counter gadgets */
 431 #define ED_COUNTER_ID_SELECT_LEVEL      0
 432 #define ED_COUNTER_ID_LEVEL_XSIZE       1
 433 #define ED_COUNTER_ID_LEVEL_YSIZE       2
 434 #define ED_COUNTER_ID_LEVEL_COLLECT     3
 435 #define ED_COUNTER_ID_LEVEL_TIMELIMIT   4
 436 #define ED_COUNTER_ID_LEVEL_TIMESCORE   5
 437 #define ED_COUNTER_ID_LEVEL_RANDOM      6
 438 #define ED_COUNTER_ID_ELEMENT_SCORE     7
 439 #define ED_COUNTER_ID_ELEMENT_CONTENT   8
 440 #define ED_COUNTER_ID_CUSTOM_SCORE      9
 441 #define ED_COUNTER_ID_PUSH_DELAY_FIX    10
 442 #define ED_COUNTER_ID_PUSH_DELAY_RND    11
 443 #define ED_COUNTER_ID_MOVE_DELAY_FIX    12
 444 #define ED_COUNTER_ID_MOVE_DELAY_RND    13
 445 #define ED_COUNTER_ID_CHANGE_DELAY_FIX  14
 446 #define ED_COUNTER_ID_CHANGE_DELAY_RND  15
 447
 448 #define ED_NUM_COUNTERBUTTONS           16
 449
 450 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 451 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM
 452
 453 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM_SCORE
 454 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_MOVE_DELAY_RND
 455
 456 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 457 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_DELAY_RND
 458
 459 /* values for scrollbutton gadgets */
 460 #define ED_SCROLLBUTTON_ID_AREA_UP      0
 461 #define ED_SCROLLBUTTON_ID_AREA_DOWN    1
 462 #define ED_SCROLLBUTTON_ID_AREA_LEFT    2
 463 #define ED_SCROLLBUTTON_ID_AREA_RIGHT   3
 464 #define ED_SCROLLBUTTON_ID_LIST_UP      4
 465 #define ED_SCROLLBUTTON_ID_LIST_DOWN    5
 466
 467 #define ED_NUM_SCROLLBUTTONS            6
 468
 469 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 470 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 471
 472 /* values for scrollbar gadgets */
 473 #define ED_SCROLLBAR_ID_AREA_HORIZONTAL 0
 474 #define ED_SCROLLBAR_ID_AREA_VERTICAL   1
 475 #define ED_SCROLLBAR_ID_LIST_VERTICAL   2
 476
 477 #define ED_NUM_SCROLLBARS               3
 478
 479 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 480 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 481
 482 /* values for text input gadgets */
 483 #define ED_TEXTINPUT_ID_LEVEL_NAME      0
 484 #define ED_TEXTINPUT_ID_LEVEL_AUTHOR    1
 485
 486 #define ED_NUM_TEXTINPUT                2
 487
 488 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 489 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 490
 491 /* values for selectbox gadgets */
 492 #define ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION   0
 493 #define ED_SELECTBOX_ID_CUSTOM_CONSISTENCY      1
 494 #define ED_SELECTBOX_ID_CUSTOM_DEADLINESS       2
 495 #define ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN     3
 496 #define ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION   4
 497 #define ED_SELECTBOX_ID_CUSTOM_WALKABLE_LAYER   5
 498 #define ED_SELECTBOX_ID_CHANGE_TIME_UNITS       6
 499 #define ED_SELECTBOX_ID_CHANGE_PLAYER_ACTION    7
 500 #define ED_SELECTBOX_ID_CHANGE_CAUSE            8
 501
 502 #define ED_NUM_SELECTBOX                        9
 503
 504 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 505 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM_WALKABLE_LAYER
 506
 507 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 508 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_CHANGE_CAUSE
 509
 510 /* values for textbutton gadgets */
 511 #define ED_TEXTBUTTON_ID_PROPERTIES_INFO        0
 512 #define ED_TEXTBUTTON_ID_PROPERTIES_CONFIG      1
 513 #define ED_TEXTBUTTON_ID_PROPERTIES_ADVANCED    2
 514 #define ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE       3
 515
 516 #define ED_NUM_TEXTBUTTON                       4
 517
 518 /* values for checkbutton gadgets */
 519 #define ED_CHECKBUTTON_ID_DOUBLE_SPEED          0
 520 #define ED_CHECKBUTTON_ID_GRAVITY               1
 521 #define ED_CHECKBUTTON_ID_RANDOM_RESTRICTED     2
 522 #define ED_CHECKBUTTON_ID_STICK_ELEMENT         3
 523 #define ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS      4
 524 #define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_RESULT 5
 525 #define ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT 6
 526 #define ED_CHECKBUTTON_ID_CUSTOM_DEADLY         7
 527 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE       8
 528 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL       9
 529 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH      10
 530 #define ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY       11
 531 #define ED_CHECKBUTTON_ID_CUSTOM_WALKABLE       12
 532 #define ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC    13
 533 #define ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE   14
 534 #define ED_CHECKBUTTON_ID_CUSTOM_CHANGEABLE     15
 535 #define ED_CHECKBUTTON_ID_CHANGE_DELAY          16
 536 #define ED_CHECKBUTTON_ID_CHANGE_BY_PLAYER      17
 537
 538 #define ED_NUM_CHECKBUTTONS                     18
 539
 540 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_DOUBLE_SPEED
 541 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
 542
 543 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_RESULT
 544 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM_WALKABLE
 545
 546 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
 547 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_BY_PLAYER
 548
 549 /* values for radiobutton gadgets */
 550 #define ED_RADIOBUTTON_ID_PERCENTAGE    0
 551 #define ED_RADIOBUTTON_ID_QUANTITY      1
 552
 553 #define ED_NUM_RADIOBUTTONS             2
 554
 555 #define ED_RADIOBUTTON_ID_LEVEL_FIRST   ED_RADIOBUTTON_ID_PERCENTAGE
 556 #define ED_RADIOBUTTON_ID_LEVEL_LAST    ED_RADIOBUTTON_ID_QUANTITY
 557
 558
 559 /*
 560   -----------------------------------------------------------------------------
 561   some internally used definitions
 562   -----------------------------------------------------------------------------
 563 */
 564
 565 /* values for CopyLevelToUndoBuffer() */
 566 #define UNDO_IMMEDIATE                  0
 567 #define UNDO_ACCUMULATE                 1
 568
 569 /* values for scrollbars */
 570 #define ED_SCROLL_NO                    0
 571 #define ED_SCROLL_LEFT                  1
 572 #define ED_SCROLL_RIGHT                 2
 573 #define ED_SCROLL_UP                    4
 574 #define ED_SCROLL_DOWN                  8
 575
 576 /* screens in the level editor */
 577 #define ED_MODE_DRAWING                 0
 578 #define ED_MODE_INFO                    1
 579 #define ED_MODE_PROPERTIES              2
 580
 581 /* sub-screens in the element properties section */
 582 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
 583 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
 584 #define ED_MODE_PROPERTIES_ADVANCED     ED_TEXTBUTTON_ID_PROPERTIES_ADVANCED
 585
 586 /* how many steps can be cancelled */
 587 #define NUM_UNDO_STEPS                  (10 + 1)
 588
 589 /* values for elements with score */
 590 #define MIN_SCORE                       0
 591 #define MAX_SCORE                       255
 592
 593 /* values for random placement */
 594 #define RANDOM_USE_PERCENTAGE           0
 595 #define RANDOM_USE_QUANTITY             1
 596
 597 /* maximal size of level editor drawing area */
 598 #define MAX_ED_FIELDX           (2 * SCR_FIELDX)
 599 #define MAX_ED_FIELDY           (2 * SCR_FIELDY - 1)
 600
 601
 602 /*
 603   -----------------------------------------------------------------------------
 604   some internally used data structure definitions
 605   -----------------------------------------------------------------------------
 606 */
 607
 608 static struct
 609 {
 610   char shortcut;
 611   char *text;
 612 } control_info[ED_NUM_CTRL_BUTTONS] =
 613 {
 614   { 's',        "draw single items"             },
 615   { 'd',        "draw connected items"          },
 616   { 'l',        "draw lines"                    },
 617   { 'a',        "draw arcs"                     },
 618   { 'r',        "draw outline rectangles"       },
 619   { 'R',        "draw filled rectangles"        },
 620   { '\0',       "wrap (rotate) level up"        },
 621   { 't',        "enter text elements"           },
 622   { 'f',        "flood fill"                    },
 623   { '\0',       "wrap (rotate) level left"      },
 624   { '?',        "properties of drawing element" },
 625   { '\0',       "wrap (rotate) level right"     },
 626   { '\0',       "random element placement"      },
 627   { 'b',        "grab brush"                    },
 628   { '\0',       "wrap (rotate) level down"      },
 629   { ',',        "pick drawing element"          },
 630   { 'U',        "undo last operation"           },
 631   { 'I',        "level properties"              },
 632   { 'S',        "save level"                    },
 633   { 'C',        "clear level"                   },
 634   { 'T',        "test level"                    },
 635   { 'E',        "exit level editor"             }
 636 };
 637
 638 static int random_placement_value = 10;
 639 static int random_placement_method = RANDOM_USE_QUANTITY;
 640 static int random_placement_background_element = EL_SAND;
 641 static boolean random_placement_background_restricted = FALSE;
 642 static boolean stick_element_properties_window = FALSE;
 643 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
 644 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
 645 static struct ElementInfo custom_element;
 646
 647 static struct
 648 {
 649   int x, y;
 650   int min_value, max_value;
 651   int gadget_id_down, gadget_id_up;
 652   int gadget_id_text;
 653   int *value;
 654   char *text_above, *text_left, *text_right;
 655 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
 656 {
 657   {
 658     DX + 5 - SX,                        DY + 3 - SY,
 659     1,                                  100,
 660     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
 661     GADGET_ID_SELECT_LEVEL_TEXT,
 662     &level_nr,
 663     NULL,                               NULL, NULL
 664   },
 665   {
 666     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(2),
 667     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
 668     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
 669     GADGET_ID_LEVEL_XSIZE_TEXT,
 670     &level.fieldx,
 671     "playfield size",                   NULL, "width",
 672   },
 673   {
 674     ED_SETTINGS_XPOS(0) + 2 * DXSIZE,   ED_COUNTER_YPOS(2),
 675     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
 676     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
 677     GADGET_ID_LEVEL_YSIZE_TEXT,
 678     &level.fieldy,
 679     NULL,                               NULL, "height",
 680   },
 681   {
 682     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(3),
 683     0,                                  999,
 684     GADGET_ID_LEVEL_COLLECT_DOWN,       GADGET_ID_LEVEL_COLLECT_UP,
 685     GADGET_ID_LEVEL_COLLECT_TEXT,
 686     &level.gems_needed,
 687     "number of emeralds to collect",    NULL, NULL
 688   },
 689   {
 690     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(4),
 691     0,                                  999,
 692     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
 693     GADGET_ID_LEVEL_TIMELIMIT_TEXT,
 694     &level.time,
 695     "time available to solve level",    NULL, "(0 => no time limit)"
 696   },
 697   {
 698     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(5),
 699     0,                                  255,
 700     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
 701     GADGET_ID_LEVEL_TIMESCORE_TEXT,
 702     &level.score[SC_TIME_BONUS],
 703     "score for each 10 seconds left",   NULL, NULL
 704   },
 705   {
 706     ED_SETTINGS_XPOS(0),                ED_COUNTER2_YPOS(8),
 707     1,                                  100,
 708     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
 709     GADGET_ID_LEVEL_RANDOM_TEXT,
 710     &random_placement_value,
 711     "random element placement",         NULL, "in"
 712   },
 713   {
 714     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(0),
 715     MIN_SCORE,                          MAX_SCORE,
 716     GADGET_ID_ELEMENT_SCORE_DOWN,       GADGET_ID_ELEMENT_SCORE_UP,
 717     GADGET_ID_ELEMENT_SCORE_TEXT,
 718     NULL,                               /* will be set when used */
 719     NULL,                               NULL, NULL
 720   },
 721   {
 722     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(6),
 723     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
 724     GADGET_ID_ELEMENT_CONTENT_DOWN,     GADGET_ID_ELEMENT_CONTENT_UP,
 725     GADGET_ID_ELEMENT_CONTENT_TEXT,
 726     &level.num_yamyam_contents,
 727     NULL,                               NULL, "number of content areas"
 728   },
 729   {
 730     ED_SETTINGS_XPOS(9),                ED_SETTINGS_YPOS(4),
 731     MIN_SCORE,                          MAX_SCORE,
 732     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
 733     GADGET_ID_CUSTOM_SCORE_TEXT,
 734     &custom_element.score,
 735     NULL,                               "score", NULL
 736   },
 737   {
 738     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(5),
 739     0,                                  999,
 740     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
 741     GADGET_ID_PUSH_DELAY_FIX_TEXT,
 742     &custom_element.push_delay_fixed,
 743     NULL,                               "push delay", NULL
 744   },
 745   {
 746     ED_COUNT_PUSH_DELAY_RND_XPOS,       ED_SETTINGS_YPOS(5),
 747     0,                                  999,
 748     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
 749     GADGET_ID_PUSH_DELAY_RND_TEXT,
 750     &custom_element.push_delay_random,
 751     NULL,                               "+random", NULL
 752   },
 753   {
 754     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(8),
 755     0,                                  999,
 756     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
 757     GADGET_ID_MOVE_DELAY_FIX_TEXT,
 758     &custom_element.move_delay_fixed,
 759     NULL,                               "move delay", NULL
 760   },
 761   {
 762     ED_COUNT_MOVE_DELAY_RND_XPOS,       ED_SETTINGS_YPOS(8),
 763     0,                                  999,
 764     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
 765     GADGET_ID_MOVE_DELAY_RND_TEXT,
 766     &custom_element.move_delay_random,
 767     NULL,                               "+random", NULL
 768   },
 769   {
 770     ED_SETTINGS_XPOS(2),                ED_SETTINGS_YPOS(3),
 771     0,                                  999,
 772     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
 773     GADGET_ID_CHANGE_DELAY_FIX_TEXT,
 774     &custom_element.change.delay_fixed,
 775     NULL,                               "delay", NULL,
 776   },
 777   {
 778     ED_COUNT_CHANGE_DELAY_RND_XPOS,     ED_SETTINGS_YPOS(3),
 779     0,                                  999,
 780     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
 781     GADGET_ID_CHANGE_DELAY_RND_TEXT,
 782     &custom_element.change.delay_random,
 783     NULL,                               "+random", NULL
 784   }
 785 };
 786
 787 static struct
 788 {
 789   int x, y;
 790   int gadget_id;
 791   int size;
 792   char *value;
 793   char *infotext;
 794 } textinput_info[ED_NUM_TEXTINPUT] =
 795 {
 796   {
 797     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(0),
 798     GADGET_ID_LEVEL_NAME,
 799     MAX_LEVEL_NAME_LEN,
 800     level.name,
 801     "Title"
 802   },
 803   {
 804     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(1),
 805     GADGET_ID_LEVEL_AUTHOR,
 806     MAX_LEVEL_AUTHOR_LEN,
 807     level.author,
 808     "Author"
 809   }
 810 };
 811
 812 static struct ValueTextInfo options_walk_to_action[] =
 813 {
 814   { EP_DIGGABLE,                "diggable"                      },
 815   { EP_COLLECTIBLE,             "collectible"                   },
 816   { EP_PUSHABLE,                "pushable"                      },
 817   { -1,                         NULL                            }
 818 };
 819 static int index_walk_to_action = 0;
 820
 821 static struct ValueTextInfo options_move_pattern[] =
 822 {
 823   { MV_LEFT,                    "left"                          },
 824   { MV_RIGHT,                   "right"                         },
 825   { MV_UP,                      "up"                            },
 826   { MV_DOWN,                    "down"                          },
 827   { MV_HORIZONTAL,              "horizontal"                    },
 828   { MV_VERTICAL,                "vertical"                      },
 829   { MV_ALL_DIRECTIONS,          "all directions"                },
 830   { MV_TOWARDS_PLAYER,          "towards player"                },
 831   { MV_AWAY_FROM_PLAYER,        "away from player"              },
 832   { MV_ALONG_LEFT_SIDE,         "along left side"               },
 833   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
 834   { -1,                         NULL                            }
 835 };
 836 static int index_move_pattern = 0;
 837
 838 static struct ValueTextInfo options_move_direction[] =
 839 {
 840   { MV_NO_MOVING,               "automatic"                     },
 841   { MV_LEFT,                    "left"                          },
 842   { MV_RIGHT,                   "right"                         },
 843   { MV_UP,                      "up"                            },
 844   { MV_DOWN,                    "down"                          },
 845   { -1,                         NULL                            }
 846 };
 847 static int index_move_direction = 0;
 848
 849 static struct ValueTextInfo options_consistency[] =
 850 {
 851   { EP_INDESTRUCTIBLE,          "indestructible"                },
 852   { EP_CAN_EXPLODE_BY_FIRE,     "can explode by fire"           },
 853   { EP_CAN_EXPLODE_SMASHED,     "can explode when smashed"      },
 854   { EP_CAN_EXPLODE_IMPACT,      "can explode on impact"         },
 855   { -1,                         NULL                            }
 856 };
 857 static int index_consistency = 0;
 858
 859 static struct ValueTextInfo options_deadliness[] =
 860 {
 861   { EP_DONT_RUN_INTO,           "running into"                  },
 862   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
 863   { EP_DONT_TOUCH,              "touching"                      },
 864   { -1,                         NULL                            }
 865 };
 866 static int index_deadliness = 0;
 867
 868 static struct ValueTextInfo options_walkable_layer[] =
 869 {
 870   { EP_WALKABLE_OVER,           "over"                          },
 871   { EP_WALKABLE_INSIDE,         "inside"                        },
 872   { EP_WALKABLE_UNDER,          "under"                         },
 873   { -1,                         NULL                            }
 874 };
 875 static int index_walkable_layer = 0;
 876
 877 static struct ValueTextInfo options_time_units[] =
 878 {
 879   { 50,                         "seconds"                       },
 880   { 1,                          "frames"                        },
 881   { -1,                         NULL                            }
 882 };
 883 static int index_time_units = 0;
 884
 885 static struct ValueTextInfo options_change_player_action[] =
 886 {
 887   { CE_PRESSED_BY_PLAYER,       "pressed"                       },
 888   { CE_TOUCHED_BY_PLAYER,       "touched"                       },
 889   { -1,                         NULL                            }
 890 };
 891 static int index_change_player_action = 0, value_change_player_action = 0;
 892
 893 static struct ValueTextInfo options_change_cause[] =
 894 {
 895   { 1,                          "specified delay"               },
 896   { 2,                          "impact (active)"               },
 897   { 3,                          "impact (passive)"              },
 898   { 4,                          "touched by player"             },
 899   { 5,                          "pressed by player"             },
 900   { -1,                         NULL                            }
 901 };
 902 static int index_change_cause = 0, value_change_cause = 0;
 903
 904 static struct
 905 {
 906   int x, y;
 907   int gadget_id;
 908   int size;     /* char size of selectbox or '-1' (dynamically determined) */
 909   struct ValueTextInfo *options;
 910   int *index, *value;
 911   char *text_left, *text_right, *infotext;
 912 } selectbox_info[ED_NUM_SELECTBOX] =
 913 {
 914   {
 915     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(4),
 916     GADGET_ID_CUSTOM_WALK_TO_ACTION,
 917     -1,
 918     options_walk_to_action, &index_walk_to_action,
 919     &custom_element.walk_to_action,
 920     NULL, NULL, "diggable/collectible/pushable"
 921   },
 922   {
 923     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(3),
 924     GADGET_ID_CUSTOM_CONSISTENCY,
 925     -1,
 926     options_consistency, &index_consistency,
 927     &custom_element.consistency,
 928     NULL, "to", "consistency/destructibility"
 929   },
 930   {
 931     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(2),
 932     GADGET_ID_CUSTOM_DEADLINESS,
 933     -1,
 934     options_deadliness, &index_deadliness,
 935     &custom_element.deadliness,
 936     "deadly when", NULL, "deadliness of element"
 937   },
 938   {
 939     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(6),
 940     GADGET_ID_CUSTOM_MOVE_PATTERN,
 941     -1,
 942     options_move_pattern, &index_move_pattern,
 943     &custom_element.move_pattern,
 944     "can move", NULL, "element move direction"
 945   },
 946   {
 947     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(7),
 948     GADGET_ID_CUSTOM_MOVE_DIRECTION,
 949     -1,
 950     options_move_direction, &index_move_direction,
 951     &custom_element.move_direction_initial,
 952     "starts moving", NULL, "initial element move direction"
 953   },
 954   {
 955     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(13),
 956     GADGET_ID_CUSTOM_WALKABLE_LAYER,
 957     -1,
 958     options_walkable_layer, &index_walkable_layer,
 959     &custom_element.walkable_layer,
 960     "player can walk", NULL, "layer where player can walk"
 961   },
 962   {
 963     ED_SETTINGS_XPOS(2),                ED_SETTINGS_YPOS(4),
 964     GADGET_ID_CHANGE_TIME_UNITS,
 965     -1,
 966     options_time_units, &index_time_units,
 967     &custom_element.change.delay_frames,
 968     "delay time given in", NULL, "delay time units for change"
 969   },
 970   {
 971     ED_SETTINGS_XPOS(2),                ED_SETTINGS_YPOS(5),
 972     GADGET_ID_CHANGE_PLAYER_ACTION,
 973     -1,
 974     options_change_player_action, &index_change_player_action,
 975     &value_change_player_action,
 976     NULL, "by player", "type of player contact"
 977   },
 978   {
 979     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(10),
 980     GADGET_ID_CHANGE_CAUSE,
 981     -1,
 982     options_change_cause, &index_change_cause,
 983     &value_change_cause,
 984     "test:", NULL, "test-selectbox entry"
 985   },
 986 };
 987
 988 static struct
 989 {
 990   int x, y;
 991   int gadget_id;
 992   int size;
 993   char *text, *infotext;
 994 } textbutton_info[ED_NUM_TEXTBUTTON] =
 995 {
 996   {
 997     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(1),
 998     GADGET_ID_PROPERTIES_INFO,
 999     11, "Information",                  "Show information about element"
1000   },
1001   {
1002     ED_SETTINGS_XPOS(0) + 166,          ED_COUNTER_YPOS(1),
1003     GADGET_ID_PROPERTIES_CONFIG,
1004     11, "Configure",                    "Configure element properties"
1005   },
1006   {
1007     ED_SETTINGS_XPOS(0) + 332,          ED_COUNTER_YPOS(1),
1008     GADGET_ID_PROPERTIES_ADVANCED,
1009     11, "Advanced",                     "Advanced element configuration"
1010   },
1011   {
1012     ED_SETTINGS_XPOS(0) + 262,          ED_SETTINGS_YPOS(12),
1013     GADGET_ID_SAVE_AS_TEMPLATE,
1014     -1, "Save as template",             "Save current settings as new template"
1015   },
1016 };
1017
1018 static struct
1019 {
1020   int gd_x, gd_y;
1021   int x, y;
1022   int gadget_id;
1023   char *infotext;
1024 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
1025 {
1026   {
1027     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 0 * ED_SCROLLBUTTON_YSIZE,
1028     ED_SCROLL_UP_XPOS,      ED_SCROLL_UP_YPOS,
1029     GADGET_ID_SCROLL_UP,
1030     "scroll level editing area up"
1031   },
1032   {
1033     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 1 * ED_SCROLLBUTTON_YSIZE,
1034     ED_SCROLL_DOWN_XPOS,    ED_SCROLL_DOWN_YPOS,
1035     GADGET_ID_SCROLL_DOWN,
1036     "scroll level editing area down"
1037   },
1038   {
1039     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 2 * ED_SCROLLBUTTON_YSIZE,
1040     ED_SCROLL_LEFT_XPOS,    ED_SCROLL_LEFT_YPOS,
1041     GADGET_ID_SCROLL_LEFT,
1042     "scroll level editing area left"
1043   },
1044   {
1045     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 3 * ED_SCROLLBUTTON_YSIZE,
1046     ED_SCROLL_RIGHT_XPOS,   ED_SCROLL_RIGHT_YPOS,
1047     GADGET_ID_SCROLL_RIGHT,
1048     "scroll level editing area right"
1049   },
1050   {
1051     ED_SCROLLBUTTON2_XPOS,  ED_SCROLLBUTTON2_YPOS + 0 * ED_SCROLLBUTTON2_YSIZE,
1052     ED_SCROLL2_UP_XPOS,     ED_SCROLL2_UP_YPOS,
1053     GADGET_ID_SCROLL_LIST_UP,
1054     "scroll element list up ('Page Up')"
1055   },
1056   {
1057     ED_SCROLLBUTTON2_XPOS,  ED_SCROLLBUTTON2_YPOS + 1 * ED_SCROLLBUTTON2_YSIZE,
1058     ED_SCROLL2_DOWN_XPOS,    ED_SCROLL2_DOWN_YPOS,
1059     GADGET_ID_SCROLL_LIST_DOWN,
1060     "scroll element list down ('Page Down')"
1061   }
1062 };
1063
1064 static struct
1065 {
1066   int gd_x, gd_y;
1067   int x, y;
1068   int width, height;
1069   int type;
1070   int gadget_id;
1071   char *infotext;
1072 } scrollbar_info[ED_NUM_SCROLLBARS] =
1073 {
1074   {
1075     ED_SCROLLBAR_XPOS,                  ED_SCROLLBAR_YPOS,
1076     SX + ED_SCROLL_HORIZONTAL_XPOS,     SY + ED_SCROLL_HORIZONTAL_YPOS,
1077     ED_SCROLL_HORIZONTAL_XSIZE,         ED_SCROLL_HORIZONTAL_YSIZE,
1078     GD_TYPE_SCROLLBAR_HORIZONTAL,
1079     GADGET_ID_SCROLL_HORIZONTAL,
1080     "scroll level editing area horizontally"
1081   },
1082   {
1083     ED_SCROLLBAR_XPOS,                  ED_SCROLLBAR_YPOS,
1084     SX + ED_SCROLL_VERTICAL_XPOS,       SY + ED_SCROLL_VERTICAL_YPOS,
1085     ED_SCROLL_VERTICAL_XSIZE,           ED_SCROLL_VERTICAL_YSIZE,
1086     GD_TYPE_SCROLLBAR_VERTICAL,
1087     GADGET_ID_SCROLL_VERTICAL,
1088     "scroll level editing area vertically"
1089   },
1090   {
1091     ED_SCROLLBAR2_XPOS,                 ED_SCROLLBAR2_YPOS,
1092     DX + ED_SCROLL2_VERTICAL_XPOS,      DY + ED_SCROLL2_VERTICAL_YPOS,
1093     ED_SCROLL2_VERTICAL_XSIZE,          ED_SCROLL2_VERTICAL_YSIZE,
1094     GD_TYPE_SCROLLBAR_VERTICAL,
1095     GADGET_ID_SCROLL_LIST_VERTICAL,
1096     "scroll element list vertically"
1097   }
1098 };
1099
1100 static struct
1101 {
1102   int x, y;
1103   int gadget_id;
1104   int radio_button_nr;
1105   int *value;
1106   int checked_value;
1107   char *text_right, *infotext;
1108 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
1109 {
1110   {
1111     ED_SETTINGS_XPOS(0) + 160,          ED_COUNTER2_YPOS(8),
1112     GADGET_ID_RANDOM_PERCENTAGE,
1113     RADIO_NR_RANDOM_ELEMENTS,
1114     &random_placement_method,           RANDOM_USE_PERCENTAGE,
1115     "percentage",                       "use percentage for random elements"
1116   },
1117   {
1118     ED_SETTINGS_XPOS(0) + 340,          ED_COUNTER2_YPOS(8),
1119     GADGET_ID_RANDOM_QUANTITY,
1120     RADIO_NR_RANDOM_ELEMENTS,
1121     &random_placement_method,           RANDOM_USE_QUANTITY,
1122     "quantity",                         "use quantity for random elements"
1123   }
1124 };
1125
1126 static struct
1127 {
1128   int x, y;
1129   int gadget_id;
1130   boolean *value;
1131   char *text_right, *infotext;
1132 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
1133 {
1134   {
1135     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(6) - MINI_TILEY,
1136     GADGET_ID_DOUBLE_SPEED,
1137     &level.double_speed,
1138     "double speed movement",            "set movement speed of player"
1139   },
1140   {
1141     ED_SETTINGS_XPOS(0) + 340,          ED_COUNTER_YPOS(6) - MINI_TILEY,
1142     GADGET_ID_GRAVITY,
1143     &level.gravity,
1144     "gravity",                          "set level gravity"
1145   },
1146   {
1147     ED_SETTINGS_XPOS(0),                ED_COUNTER2_YPOS(9) - MINI_TILEY,
1148     GADGET_ID_RANDOM_RESTRICTED,
1149     &random_placement_background_restricted,
1150     "restrict random placement to",     "set random placement restriction"
1151   },
1152   {
1153     ED_SETTINGS_XPOS(0),                0,      /* set at runtime */
1154     GADGET_ID_STICK_ELEMENT,
1155     &stick_element_properties_window,
1156     "stick this screen to edit content","stick this screen to edit content"
1157   },
1158   {
1159     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(4),
1160     GADGET_ID_EM_SLIPPERY_GEMS,
1161     &level.em_slippery_gems,
1162     "slip down from certain flat walls","use EM style slipping behaviour"
1163   },
1164   {
1165     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(3),
1166     GADGET_ID_CUSTOM_EXPLODE_RESULT,
1167     &custom_element_properties[EP_EXPLODE_RESULT],
1168     NULL,                               "set consistency/destructibility"
1169   },
1170   {
1171     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(4),
1172     GADGET_ID_CUSTOM_WALK_TO_OBJECT,
1173     &custom_element_properties[EP_WALK_TO_OBJECT],
1174     NULL,                               "player can dig/collect/push element"
1175   },
1176   {
1177     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(2),
1178     GADGET_ID_CUSTOM_DEADLY,
1179     &custom_element_properties[EP_DEADLY],
1180     NULL,                               "element can kill the player"
1181   },
1182   {
1183     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(6),
1184     GADGET_ID_CUSTOM_CAN_MOVE,
1185     &custom_element_properties[EP_CAN_MOVE],
1186     NULL,                               "element can move in some direction"
1187   },
1188   {
1189     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(9),
1190     GADGET_ID_CUSTOM_CAN_FALL,
1191     &custom_element_properties[EP_CAN_FALL],
1192     "can fall",                         "element can fall down"
1193   },
1194   {
1195     ED_SETTINGS_XPOS(6),                ED_SETTINGS_YPOS(9),
1196     GADGET_ID_CUSTOM_CAN_SMASH,
1197     &custom_element_properties[EP_CAN_SMASH],
1198     "can smash on impact",              "element can smash other elements"
1199   },
1200   {
1201     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(10),
1202     GADGET_ID_CUSTOM_SLIPPERY,
1203     &custom_element_properties[EP_SLIPPERY],
1204     "slippery",                         "other elements can fall down from it"
1205   },
1206   {
1207     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(13),
1208     GADGET_ID_CUSTOM_WALKABLE,
1209     &custom_element_properties[EP_WALKABLE],
1210     NULL,                               "player can walk on the same field"
1211   },
1212   {
1213     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(1),
1214     GADGET_ID_CUSTOM_USE_GRAPHIC,
1215     &custom_element.use_gfx_element,
1216     "use graphic of element:",          "use graphic for custom element"
1217   },
1218   {
1219     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(12),
1220     GADGET_ID_CUSTOM_USE_TEMPLATE,
1221     &custom_element.use_template,
1222     "use template",                     "use template for custom properties"
1223   },
1224   {
1225     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(2),
1226     GADGET_ID_CUSTOM_CHANGEABLE,
1227     &custom_element_properties[EP_CHANGEABLE],
1228     "element changes to    after/when:","element can change to other element"
1229   },
1230   {
1231     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(3),
1232     GADGET_ID_CHANGE_DELAY,
1233     &custom_element_change_events[CE_DELAY],
1234     NULL,                               "element changes after delay"
1235   },
1236   {
1237     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(5),
1238     GADGET_ID_CHANGE_BY_PLAYER,
1239     &custom_element_change_events[CE_BY_PLAYER],
1240     NULL,                               "element changes by player contact"
1241   },
1242 };
1243
1244
1245 /*
1246   -----------------------------------------------------------------------------
1247   some internally used variables
1248   -----------------------------------------------------------------------------
1249 */
1250
1251 /* actual size of level editor drawing area */
1252 static int ed_fieldx = MAX_ED_FIELDX - 1, ed_fieldy = MAX_ED_FIELDY - 1;
1253
1254 /* actual position of level editor drawing area in level playfield */
1255 static int level_xpos = -1, level_ypos = -1;
1256
1257 #define IN_ED_FIELD(x,y)  ((x)>=0 && (x)<ed_fieldx && (y)>=0 &&(y)<ed_fieldy)
1258
1259 /* drawing elements on the three mouse buttons */
1260 static int new_element1 = EL_WALL;
1261 static int new_element2 = EL_EMPTY;
1262 static int new_element3 = EL_SAND;
1263
1264 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
1265                                 (button) == 2 ? new_element2 : \
1266                                 (button) == 3 ? new_element3 : EL_EMPTY)
1267 #define BUTTON_STEPSIZE(button) ((button) == 1 ? 1 : (button) == 2 ? 5 : 10)
1268
1269 /* forward declaration for internal use */
1270 static void ModifyEditorCounter(int, int);
1271 static void ModifyEditorCounterLimits(int, int, int);
1272 static void ModifyEditorSelectbox(int, int);
1273 static void ModifyEditorElementList();
1274 static void DrawDrawingWindow();
1275 static void DrawLevelInfoWindow();
1276 static void DrawPropertiesWindow();
1277 static boolean checkPropertiesConfig();
1278 static void CopyLevelToUndoBuffer(int);
1279 static void HandleDrawingAreas(struct GadgetInfo *);
1280 static void HandleCounterButtons(struct GadgetInfo *);
1281 static void HandleTextInputGadgets(struct GadgetInfo *);
1282 static void HandleSelectboxGadgets(struct GadgetInfo *);
1283 static void HandleTextbuttonGadgets(struct GadgetInfo *);
1284 static void HandleRadiobuttons(struct GadgetInfo *);
1285 static void HandleCheckbuttons(struct GadgetInfo *);
1286 static void HandleControlButtons(struct GadgetInfo *);
1287 static void HandleDrawingAreaInfo(struct GadgetInfo *);
1288
1289 static struct GadgetInfo *level_editor_gadget[NUM_EDITOR_GADGETS];
1290
1291 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
1292 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
1293 static boolean draw_with_brush = FALSE;
1294 static int properties_element = 0;
1295
1296 static short FieldBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
1297 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
1298 static int undo_buffer_position = 0;
1299 static int undo_buffer_steps = 0;
1300
1301 static int edit_mode;
1302 static int edit_mode_properties;
1303
1304 static int element_shift = 0;
1305
1306 static int editor_el_boulderdash[] =
1307 {
1308   EL_CHAR('B'),
1309   EL_CHAR('O'),
1310   EL_CHAR('U'),
1311   EL_CHAR('L'),
1312
1313   EL_CHAR('-'),
1314   EL_CHAR('D'),
1315   EL_CHAR('E'),
1316   EL_CHAR('R'),
1317
1318   EL_CHAR('D'),
1319   EL_CHAR('A'),
1320   EL_CHAR('S'),
1321   EL_CHAR('H'),
1322
1323   EL_PLAYER_1,
1324   EL_EMPTY,
1325   EL_SAND,
1326   EL_STEELWALL,
1327
1328   EL_BD_WALL,
1329   EL_BD_MAGIC_WALL,
1330   EL_EXIT_CLOSED,
1331   EL_EXIT_OPEN,
1332
1333   EL_BD_DIAMOND,
1334   EL_BD_BUTTERFLY_UP,
1335   EL_BD_FIREFLY_UP,
1336   EL_BD_ROCK,
1337
1338   EL_BD_BUTTERFLY_LEFT,
1339   EL_BD_FIREFLY_LEFT,
1340   EL_BD_BUTTERFLY_RIGHT,
1341   EL_BD_FIREFLY_RIGHT,
1342
1343   EL_BD_AMOEBA,
1344   EL_BD_BUTTERFLY_DOWN,
1345   EL_BD_FIREFLY_DOWN,
1346   EL_EMPTY,
1347 };
1348 static int num_editor_el_boulderdash = SIZEOF_ARRAY_INT(editor_el_boulderdash);
1349
1350 static int editor_el_emerald_mine[] =
1351 {
1352   EL_CHAR('E'),
1353   EL_CHAR('M'),
1354   EL_CHAR('E'),
1355   EL_CHAR('-'),
1356
1357   EL_CHAR('R'),
1358   EL_CHAR('A'),
1359   EL_CHAR('L'),
1360   EL_CHAR('D'),
1361
1362   EL_CHAR('M'),
1363   EL_CHAR('I'),
1364   EL_CHAR('N'),
1365   EL_CHAR('E'),
1366
1367   EL_PLAYER_1,
1368   EL_PLAYER_2,
1369   EL_PLAYER_3,
1370   EL_PLAYER_4,
1371
1372   EL_PLAYER_1,
1373   EL_EMPTY,
1374   EL_SAND,
1375   EL_ROCK,
1376
1377   EL_STEELWALL,
1378   EL_WALL,
1379   EL_WALL_CRUMBLED,
1380   EL_MAGIC_WALL,
1381
1382   EL_EMERALD,
1383   EL_DIAMOND,
1384   EL_NUT,
1385   EL_BOMB,
1386
1387   EL_WALL_EMERALD,
1388   EL_WALL_DIAMOND,
1389   EL_QUICKSAND_EMPTY,
1390   EL_QUICKSAND_FULL,
1391
1392   EL_DYNAMITE,
1393   EL_DYNAMITE_ACTIVE,
1394   EL_EXIT_CLOSED,
1395   EL_EXIT_OPEN,
1396
1397   EL_YAMYAM,
1398   EL_BUG_UP,
1399   EL_SPACESHIP_UP,
1400   EL_ROBOT,
1401
1402   EL_BUG_LEFT,
1403   EL_SPACESHIP_LEFT,
1404   EL_BUG_RIGHT,
1405   EL_SPACESHIP_RIGHT,
1406
1407   EL_ROBOT_WHEEL,
1408   EL_BUG_DOWN,
1409   EL_SPACESHIP_DOWN,
1410   EL_INVISIBLE_WALL,
1411
1412   EL_ACID_POOL_TOPLEFT,
1413   EL_ACID,
1414   EL_ACID_POOL_TOPRIGHT,
1415   EL_EMPTY,
1416
1417   EL_ACID_POOL_BOTTOMLEFT,
1418   EL_ACID_POOL_BOTTOM,
1419   EL_ACID_POOL_BOTTOMRIGHT,
1420   EL_EMPTY,
1421
1422   EL_AMOEBA_DROP,
1423   EL_AMOEBA_DEAD,
1424   EL_AMOEBA_WET,
1425   EL_AMOEBA_DRY,
1426
1427   EL_EM_KEY_1_FILE,
1428   EL_EM_KEY_2_FILE,
1429   EL_EM_KEY_3_FILE,
1430   EL_EM_KEY_4_FILE,
1431
1432   EL_EM_GATE_1,
1433   EL_EM_GATE_2,
1434   EL_EM_GATE_3,
1435   EL_EM_GATE_4,
1436
1437   EL_EM_GATE_1_GRAY,
1438   EL_EM_GATE_2_GRAY,
1439   EL_EM_GATE_3_GRAY,
1440   EL_EM_GATE_4_GRAY,
1441 };
1442 static int num_editor_el_emerald_mine = SIZEOF_ARRAY_INT(editor_el_emerald_mine);
1443
1444 static int editor_el_more[] =
1445 {
1446   EL_CHAR('M'),
1447   EL_CHAR('O'),
1448   EL_CHAR('R'),
1449   EL_CHAR('E'),
1450
1451   EL_KEY_1,
1452   EL_KEY_2,
1453   EL_KEY_3,
1454   EL_KEY_4,
1455
1456   EL_GATE_1,
1457   EL_GATE_2,
1458   EL_GATE_3,
1459   EL_GATE_4,
1460
1461   EL_GATE_1_GRAY,
1462   EL_GATE_2_GRAY,
1463   EL_GATE_3_GRAY,
1464   EL_GATE_4_GRAY,
1465
1466   EL_ARROW_LEFT,
1467   EL_ARROW_RIGHT,
1468   EL_ARROW_UP,
1469   EL_ARROW_DOWN,
1470
1471   EL_AMOEBA_FULL,
1472   EL_EMERALD_YELLOW,
1473   EL_EMERALD_RED,
1474   EL_EMERALD_PURPLE,
1475
1476   EL_WALL_BD_DIAMOND,
1477   EL_WALL_EMERALD_YELLOW,
1478   EL_WALL_EMERALD_RED,
1479   EL_WALL_EMERALD_PURPLE,
1480
1481   EL_GAME_OF_LIFE,
1482   EL_PACMAN_UP,
1483   EL_TIME_ORB_FULL,
1484   EL_TIME_ORB_EMPTY,
1485
1486   EL_PACMAN_LEFT,
1487   EL_DARK_YAMYAM,
1488   EL_PACMAN_RIGHT,
1489   EL_EXPANDABLE_WALL,
1490
1491   EL_BIOMAZE,
1492   EL_PACMAN_DOWN,
1493   EL_LAMP,
1494   EL_LAMP_ACTIVE,
1495
1496   EL_DYNABOMB_INCREASE_NUMBER,
1497   EL_DYNABOMB_INCREASE_SIZE,
1498   EL_DYNABOMB_INCREASE_POWER,
1499   EL_STONEBLOCK,
1500
1501   EL_MOLE,
1502   EL_PENGUIN,
1503   EL_PIG,
1504   EL_DRAGON,
1505
1506   EL_EMPTY,
1507   EL_MOLE_UP,
1508   EL_EMPTY,
1509   EL_EMPTY,
1510
1511   EL_MOLE_LEFT,
1512   EL_EMPTY,
1513   EL_MOLE_RIGHT,
1514   EL_EMPTY,
1515
1516   EL_EMPTY,
1517   EL_MOLE_DOWN,
1518   EL_BALLOON,
1519   EL_BALLOON_SWITCH_ANY,
1520
1521   EL_BALLOON_SWITCH_LEFT,
1522   EL_BALLOON_SWITCH_RIGHT,
1523   EL_BALLOON_SWITCH_UP,
1524   EL_BALLOON_SWITCH_DOWN,
1525
1526   EL_SATELLITE,
1527   EL_EXPANDABLE_WALL_HORIZONTAL,
1528   EL_EXPANDABLE_WALL_VERTICAL,
1529   EL_EXPANDABLE_WALL_ANY,
1530
1531   EL_INVISIBLE_STEELWALL,
1532   EL_INVISIBLE_WALL,
1533   EL_SPEED_PILL,
1534   EL_BLACK_ORB,
1535
1536   EL_EMC_STEELWALL_1,
1537   EL_EMC_WALL_1,
1538   EL_EMC_WALL_2,
1539   EL_EMC_WALL_3,
1540
1541   EL_EMC_WALL_4,
1542   EL_EMC_WALL_5,
1543   EL_EMC_WALL_6,
1544   EL_EMC_WALL_7,
1545 };
1546 static int num_editor_el_more = SIZEOF_ARRAY_INT(editor_el_more);
1547
1548 static int editor_el_sokoban[] =
1549 {
1550   EL_CHAR('S'),
1551   EL_CHAR('O'),
1552   EL_CHAR('K'),
1553   EL_CHAR('O'),
1554
1555   EL_CHAR('-'),
1556   EL_CHAR('B'),
1557   EL_CHAR('A'),
1558   EL_CHAR('N'),
1559
1560   EL_SOKOBAN_OBJECT,
1561   EL_SOKOBAN_FIELD_EMPTY,
1562   EL_SOKOBAN_FIELD_FULL,
1563   EL_STEELWALL,
1564 };
1565 static int num_editor_el_sokoban = SIZEOF_ARRAY_INT(editor_el_sokoban);
1566
1567 static int editor_el_supaplex[] =
1568 {
1569   EL_CHAR('S'),
1570   EL_CHAR('U'),
1571   EL_CHAR('P'),
1572   EL_CHAR('A'),
1573
1574   EL_CHAR('P'),
1575   EL_CHAR('L'),
1576   EL_CHAR('E'),
1577   EL_CHAR('X'),
1578
1579   EL_SP_EMPTY,
1580   EL_SP_ZONK,
1581   EL_SP_BASE,
1582   EL_SP_MURPHY,
1583
1584   EL_SP_INFOTRON,
1585   EL_SP_CHIP_SINGLE,
1586   EL_SP_HARDWARE_GRAY,
1587   EL_SP_EXIT_CLOSED,
1588
1589   EL_SP_DISK_ORANGE,
1590   EL_SP_PORT_RIGHT,
1591   EL_SP_PORT_DOWN,
1592   EL_SP_PORT_LEFT,
1593
1594   EL_SP_PORT_UP,
1595   EL_SP_GRAVITY_PORT_RIGHT,
1596   EL_SP_GRAVITY_PORT_DOWN,
1597   EL_SP_GRAVITY_PORT_LEFT,
1598
1599   EL_SP_GRAVITY_PORT_UP,
1600   EL_SP_SNIKSNAK,
1601   EL_SP_DISK_YELLOW,
1602   EL_SP_TERMINAL,
1603
1604   EL_SP_DISK_RED,
1605   EL_SP_PORT_VERTICAL,
1606   EL_SP_PORT_HORIZONTAL,
1607   EL_SP_PORT_ANY,
1608
1609   EL_SP_ELECTRON,
1610   EL_SP_BUGGY_BASE,
1611   EL_SP_CHIP_LEFT,
1612   EL_SP_CHIP_RIGHT,
1613
1614   EL_SP_HARDWARE_BASE_1,
1615   EL_SP_HARDWARE_GREEN,
1616   EL_SP_HARDWARE_BLUE,
1617   EL_SP_HARDWARE_RED,
1618
1619   EL_SP_HARDWARE_YELLOW,
1620   EL_SP_HARDWARE_BASE_2,
1621   EL_SP_HARDWARE_BASE_3,
1622   EL_SP_HARDWARE_BASE_4,
1623
1624   EL_SP_HARDWARE_BASE_5,
1625   EL_SP_HARDWARE_BASE_6,
1626   EL_SP_CHIP_TOP,
1627   EL_SP_CHIP_BOTTOM,
1628 };
1629 static int num_editor_el_supaplex = SIZEOF_ARRAY_INT(editor_el_supaplex);
1630
1631 static int editor_el_diamond_caves[] =
1632 {
1633   EL_CHAR('D'),
1634   EL_CHAR('I'),
1635   EL_CHAR('A'),
1636   EL_CHAR('-'),
1637
1638   EL_CHAR('M'),
1639   EL_CHAR('O'),
1640   EL_CHAR('N'),
1641   EL_CHAR('D'),
1642
1643   EL_CHAR('C'),
1644   EL_CHAR('A'),
1645   EL_CHAR('V'),
1646   EL_CHAR('E'),
1647
1648   EL_CHAR('S'),
1649   EL_CHAR(' '),
1650   EL_CHAR('I'),
1651   EL_CHAR('I'),
1652
1653   EL_PEARL,
1654   EL_CRYSTAL,
1655   EL_WALL_PEARL,
1656   EL_WALL_CRYSTAL,
1657
1658   EL_CONVEYOR_BELT_1_LEFT,
1659   EL_CONVEYOR_BELT_1_MIDDLE,
1660   EL_CONVEYOR_BELT_1_RIGHT,
1661   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1662
1663   EL_CONVEYOR_BELT_2_LEFT,
1664   EL_CONVEYOR_BELT_2_MIDDLE,
1665   EL_CONVEYOR_BELT_2_RIGHT,
1666   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1667
1668   EL_CONVEYOR_BELT_3_LEFT,
1669   EL_CONVEYOR_BELT_3_MIDDLE,
1670   EL_CONVEYOR_BELT_3_RIGHT,
1671   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1672
1673   EL_CONVEYOR_BELT_4_LEFT,
1674   EL_CONVEYOR_BELT_4_MIDDLE,
1675   EL_CONVEYOR_BELT_4_RIGHT,
1676   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1677
1678   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1679   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1680   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1681   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1682
1683   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1684   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1685   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1686   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1687
1688   EL_SWITCHGATE_OPEN,
1689   EL_SWITCHGATE_CLOSED,
1690   EL_SWITCHGATE_SWITCH_UP,
1691   EL_ENVELOPE,
1692
1693   EL_TIMEGATE_CLOSED,
1694   EL_TIMEGATE_OPEN,
1695   EL_TIMEGATE_SWITCH,
1696   EL_EMPTY,
1697
1698   EL_LANDMINE,
1699   EL_INVISIBLE_SAND,
1700   EL_STEELWALL_SLANTED,
1701   EL_EMPTY,
1702
1703   EL_SIGN_EXCLAMATION,
1704   EL_SIGN_STOP,
1705   EL_LIGHT_SWITCH,
1706   EL_LIGHT_SWITCH_ACTIVE,
1707
1708   EL_SHIELD_NORMAL,
1709   EL_SHIELD_DEADLY,
1710   EL_EXTRA_TIME,
1711   EL_EMPTY,
1712 };
1713 static int num_editor_el_diamond_caves = SIZEOF_ARRAY_INT(editor_el_diamond_caves);
1714
1715 static int editor_el_dx_boulderdash[] =
1716 {
1717   EL_CHAR('D'),
1718   EL_CHAR('X'),
1719   EL_CHAR('-'),
1720   EL_CHAR(' '),
1721
1722   EL_CHAR('B'),
1723   EL_CHAR('O'),
1724   EL_CHAR('U'),
1725   EL_CHAR('L'),
1726
1727   EL_CHAR('-'),
1728   EL_CHAR('D'),
1729   EL_CHAR('E'),
1730   EL_CHAR('R'),
1731
1732   EL_CHAR('D'),
1733   EL_CHAR('A'),
1734   EL_CHAR('S'),
1735   EL_CHAR('H'),
1736
1737   EL_SPRING,
1738   EL_TUBE_RIGHT_DOWN,
1739   EL_TUBE_HORIZONTAL_DOWN,
1740   EL_TUBE_LEFT_DOWN,
1741
1742   EL_TUBE_HORIZONTAL,
1743   EL_TUBE_VERTICAL_RIGHT,
1744   EL_TUBE_ANY,
1745   EL_TUBE_VERTICAL_LEFT,
1746
1747   EL_TUBE_VERTICAL,
1748   EL_TUBE_RIGHT_UP,
1749   EL_TUBE_HORIZONTAL_UP,
1750   EL_TUBE_LEFT_UP,
1751
1752   EL_TRAP,
1753   EL_DX_SUPABOMB,
1754   EL_EMPTY,
1755   EL_EMPTY
1756 };
1757 static int num_editor_el_dx_boulderdash = SIZEOF_ARRAY_INT(editor_el_dx_boulderdash);
1758
1759 static int editor_el_chars[] =
1760 {
1761   EL_CHAR('T'),
1762   EL_CHAR('E'),
1763   EL_CHAR('X'),
1764   EL_CHAR('T'),
1765
1766   EL_CHAR(' '),
1767   EL_CHAR('!'),
1768   EL_CHAR('"'),
1769   EL_CHAR('#'),
1770
1771   EL_CHAR('$'),
1772   EL_CHAR('%'),
1773   EL_CHAR('&'),
1774   EL_CHAR('\''),
1775
1776   EL_CHAR('('),
1777   EL_CHAR(')'),
1778   EL_CHAR('*'),
1779   EL_CHAR('+'),
1780
1781   EL_CHAR(','),
1782   EL_CHAR('-'),
1783   EL_CHAR('.'),
1784   EL_CHAR('/'),
1785
1786   EL_CHAR('0'),
1787   EL_CHAR('1'),
1788   EL_CHAR('2'),
1789   EL_CHAR('3'),
1790
1791   EL_CHAR('4'),
1792   EL_CHAR('5'),
1793   EL_CHAR('6'),
1794   EL_CHAR('7'),
1795
1796   EL_CHAR('8'),
1797   EL_CHAR('9'),
1798   EL_CHAR(':'),
1799   EL_CHAR(';'),
1800
1801   EL_CHAR('<'),
1802   EL_CHAR('='),
1803   EL_CHAR('>'),
1804   EL_CHAR('?'),
1805
1806   EL_CHAR('@'),
1807   EL_CHAR('A'),
1808   EL_CHAR('B'),
1809   EL_CHAR('C'),
1810
1811   EL_CHAR('D'),
1812   EL_CHAR('E'),
1813   EL_CHAR('F'),
1814   EL_CHAR('G'),
1815
1816   EL_CHAR('H'),
1817   EL_CHAR('I'),
1818   EL_CHAR('J'),
1819   EL_CHAR('K'),
1820
1821   EL_CHAR('L'),
1822   EL_CHAR('M'),
1823   EL_CHAR('N'),
1824   EL_CHAR('O'),
1825
1826   EL_CHAR('P'),
1827   EL_CHAR('Q'),
1828   EL_CHAR('R'),
1829   EL_CHAR('S'),
1830
1831   EL_CHAR('T'),
1832   EL_CHAR('U'),
1833   EL_CHAR('V'),
1834   EL_CHAR('W'),
1835
1836   EL_CHAR('X'),
1837   EL_CHAR('Y'),
1838   EL_CHAR('Z'),
1839   EL_CHAR('['),
1840
1841   EL_CHAR('\\'),
1842   EL_CHAR(']'),
1843   EL_CHAR('^'),
1844   EL_CHAR('_'),
1845
1846   EL_CHAR('©'),
1847   EL_CHAR('Ä'),
1848   EL_CHAR('Ö'),
1849   EL_CHAR('Ü'),
1850
1851   EL_CHAR('°'),
1852   EL_CHAR('®'),
1853   EL_CHAR(FONT_ASCII_CURSOR),
1854   EL_CHAR(' ')
1855 };
1856 static int num_editor_el_chars = SIZEOF_ARRAY_INT(editor_el_chars);
1857
1858 static int editor_el_custom[] =
1859 {
1860   EL_CHAR('C'),
1861   EL_CHAR('U'),
1862   EL_CHAR('S'),
1863   EL_CHAR('-'),
1864
1865   EL_CHAR('T'),
1866   EL_CHAR('O'),
1867   EL_CHAR('M'),
1868   EL_CHAR(' '),
1869
1870   EL_CHAR('E'),
1871   EL_CHAR('L'),
1872   EL_CHAR('E'),
1873   EL_CHAR('M'),
1874
1875   EL_CHAR('E'),
1876   EL_CHAR('N'),
1877   EL_CHAR('T'),
1878   EL_CHAR('S'),
1879
1880   EL_CUSTOM_START + 0,
1881   EL_CUSTOM_START + 1,
1882   EL_CUSTOM_START + 2,
1883   EL_CUSTOM_START + 3,
1884
1885   EL_CUSTOM_START + 4,
1886   EL_CUSTOM_START + 5,
1887   EL_CUSTOM_START + 6,
1888   EL_CUSTOM_START + 7,
1889
1890   EL_CUSTOM_START + 8,
1891   EL_CUSTOM_START + 9,
1892   EL_CUSTOM_START + 10,
1893   EL_CUSTOM_START + 11,
1894
1895   EL_CUSTOM_START + 12,
1896   EL_CUSTOM_START + 13,
1897   EL_CUSTOM_START + 14,
1898   EL_CUSTOM_START + 15,
1899
1900   EL_CUSTOM_START + 16,
1901   EL_CUSTOM_START + 17,
1902   EL_CUSTOM_START + 18,
1903   EL_CUSTOM_START + 19,
1904
1905   EL_CUSTOM_START + 20,
1906   EL_CUSTOM_START + 21,
1907   EL_CUSTOM_START + 22,
1908   EL_CUSTOM_START + 23,
1909
1910   EL_CUSTOM_START + 24,
1911   EL_CUSTOM_START + 25,
1912   EL_CUSTOM_START + 26,
1913   EL_CUSTOM_START + 27,
1914
1915   EL_CUSTOM_START + 28,
1916   EL_CUSTOM_START + 29,
1917   EL_CUSTOM_START + 30,
1918   EL_CUSTOM_START + 31,
1919
1920   EL_CUSTOM_START + 32,
1921   EL_CUSTOM_START + 33,
1922   EL_CUSTOM_START + 34,
1923   EL_CUSTOM_START + 35,
1924
1925   EL_CUSTOM_START + 36,
1926   EL_CUSTOM_START + 37,
1927   EL_CUSTOM_START + 38,
1928   EL_CUSTOM_START + 39,
1929
1930   EL_CUSTOM_START + 40,
1931   EL_CUSTOM_START + 41,
1932   EL_CUSTOM_START + 42,
1933   EL_CUSTOM_START + 43,
1934
1935   EL_CUSTOM_START + 44,
1936   EL_CUSTOM_START + 45,
1937   EL_CUSTOM_START + 46,
1938   EL_CUSTOM_START + 47,
1939
1940   EL_CUSTOM_START + 48,
1941   EL_CUSTOM_START + 49,
1942   EL_CUSTOM_START + 50,
1943   EL_CUSTOM_START + 51,
1944
1945   EL_CUSTOM_START + 52,
1946   EL_CUSTOM_START + 53,
1947   EL_CUSTOM_START + 54,
1948   EL_CUSTOM_START + 55,
1949
1950   EL_CUSTOM_START + 56,
1951   EL_CUSTOM_START + 57,
1952   EL_CUSTOM_START + 58,
1953   EL_CUSTOM_START + 59,
1954
1955   EL_CUSTOM_START + 60,
1956   EL_CUSTOM_START + 61,
1957   EL_CUSTOM_START + 62,
1958   EL_CUSTOM_START + 63,
1959
1960   EL_CUSTOM_START + 64,
1961   EL_CUSTOM_START + 65,
1962   EL_CUSTOM_START + 66,
1963   EL_CUSTOM_START + 67,
1964
1965   EL_CUSTOM_START + 68,
1966   EL_CUSTOM_START + 69,
1967   EL_CUSTOM_START + 70,
1968   EL_CUSTOM_START + 71,
1969
1970   EL_CUSTOM_START + 72,
1971   EL_CUSTOM_START + 73,
1972   EL_CUSTOM_START + 74,
1973   EL_CUSTOM_START + 75,
1974
1975   EL_CUSTOM_START + 76,
1976   EL_CUSTOM_START + 77,
1977   EL_CUSTOM_START + 78,
1978   EL_CUSTOM_START + 79,
1979
1980   EL_CUSTOM_START + 80,
1981   EL_CUSTOM_START + 81,
1982   EL_CUSTOM_START + 82,
1983   EL_CUSTOM_START + 83,
1984
1985   EL_CUSTOM_START + 84,
1986   EL_CUSTOM_START + 85,
1987   EL_CUSTOM_START + 86,
1988   EL_CUSTOM_START + 87,
1989
1990   EL_CUSTOM_START + 88,
1991   EL_CUSTOM_START + 89,
1992   EL_CUSTOM_START + 90,
1993   EL_CUSTOM_START + 91,
1994
1995   EL_CUSTOM_START + 92,
1996   EL_CUSTOM_START + 93,
1997   EL_CUSTOM_START + 94,
1998   EL_CUSTOM_START + 95,
1999
2000   EL_CUSTOM_START + 96,
2001   EL_CUSTOM_START + 97,
2002   EL_CUSTOM_START + 98,
2003   EL_CUSTOM_START + 99,
2004
2005   EL_CUSTOM_START + 100,
2006   EL_CUSTOM_START + 101,
2007   EL_CUSTOM_START + 102,
2008   EL_CUSTOM_START + 103,
2009
2010   EL_CUSTOM_START + 104,
2011   EL_CUSTOM_START + 105,
2012   EL_CUSTOM_START + 106,
2013   EL_CUSTOM_START + 107,
2014
2015   EL_CUSTOM_START + 108,
2016   EL_CUSTOM_START + 109,
2017   EL_CUSTOM_START + 110,
2018   EL_CUSTOM_START + 111,
2019
2020   EL_CUSTOM_START + 112,
2021   EL_CUSTOM_START + 113,
2022   EL_CUSTOM_START + 114,
2023   EL_CUSTOM_START + 115,
2024
2025   EL_CUSTOM_START + 116,
2026   EL_CUSTOM_START + 117,
2027   EL_CUSTOM_START + 118,
2028   EL_CUSTOM_START + 119,
2029
2030   EL_CUSTOM_START + 120,
2031   EL_CUSTOM_START + 121,
2032   EL_CUSTOM_START + 122,
2033   EL_CUSTOM_START + 123,
2034
2035   EL_CUSTOM_START + 124,
2036   EL_CUSTOM_START + 125,
2037   EL_CUSTOM_START + 126,
2038   EL_CUSTOM_START + 127
2039 };
2040 static int num_editor_el_custom = SIZEOF_ARRAY_INT(editor_el_custom);
2041
2042 static int *editor_elements = NULL;     /* dynamically allocated */
2043 static int num_editor_elements = 0;     /* dynamically determined */
2044
2045 static struct
2046 {
2047   boolean *setup_value;
2048   int *element_list;
2049   int *element_list_size;
2050
2051   boolean last_setup_value;
2052 }
2053 editor_elements_info[] =
2054 {
2055   { &setup.editor.el_boulderdash,       editor_el_boulderdash,
2056     &num_editor_el_boulderdash                                          },
2057   { &setup.editor.el_emerald_mine,      editor_el_emerald_mine,
2058     &num_editor_el_emerald_mine                                         },
2059   { &setup.editor.el_more,              editor_el_more,
2060     &num_editor_el_more                                                 },
2061   { &setup.editor.el_sokoban,           editor_el_sokoban,
2062     &num_editor_el_sokoban                                              },
2063   { &setup.editor.el_supaplex,          editor_el_supaplex,
2064     &num_editor_el_supaplex                                             },
2065   { &setup.editor.el_diamond_caves,     editor_el_diamond_caves,
2066     &num_editor_el_diamond_caves                                        },
2067   { &setup.editor.el_dx_boulderdash,    editor_el_dx_boulderdash,
2068     &num_editor_el_dx_boulderdash                                       },
2069   { &setup.editor.el_chars,             editor_el_chars,
2070     &num_editor_el_chars                                                },
2071   { &setup.editor.el_custom,            editor_el_custom,
2072     &num_editor_el_custom                                               },
2073   { NULL,                               NULL,
2074     NULL                                                                }
2075 };
2076
2077
2078 /*
2079   -----------------------------------------------------------------------------
2080   functions
2081   -----------------------------------------------------------------------------
2082 */
2083
2084 static void ReinitializeElementList()
2085 {
2086   int pos = 0;
2087   int i, j;
2088
2089   if (editor_elements != NULL)
2090     free(editor_elements);
2091
2092   num_editor_elements = 0;
2093
2094   /* determine size of element list */
2095   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
2096     if (*editor_elements_info[i].setup_value)
2097       num_editor_elements += *editor_elements_info[i].element_list_size;
2098
2099   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
2100   {
2101     /* workaround: offer at least as many elements as element buttons exist */
2102     int list_nr = 1;    /* see above: editor_elements_info for Emerald Mine */
2103
2104     *editor_elements_info[list_nr].setup_value = TRUE;
2105     num_editor_elements += *editor_elements_info[list_nr].element_list_size;
2106   }
2107
2108   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
2109
2110   /* fill element list */
2111   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
2112     if (*editor_elements_info[i].setup_value)
2113       for (j=0; j<*editor_elements_info[i].element_list_size; j++)
2114         editor_elements[pos++] = editor_elements_info[i].element_list[j];
2115 }
2116
2117 static void ReinitializeElementListButtons()
2118 {
2119   static boolean initialization_needed = TRUE;
2120   int i;
2121
2122   if (!initialization_needed)   /* check if editor element setup has changed */
2123     for (i=0; editor_elements_info[i].setup_value != NULL; i++)
2124       if (editor_elements_info[i].last_setup_value !=
2125           *editor_elements_info[i].setup_value)
2126         initialization_needed = TRUE;
2127
2128   if (!initialization_needed)
2129     return;
2130
2131   FreeLevelEditorGadgets();
2132   CreateLevelEditorGadgets();
2133
2134   /* store current setup values for next invocation of this function */
2135   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
2136     editor_elements_info[i].last_setup_value =
2137       *editor_elements_info[i].setup_value;
2138
2139   initialization_needed = FALSE;
2140 }
2141
2142 static int getCounterGadgetWidth()
2143 {
2144   return (DXSIZE + getFontWidth(FONT_INPUT_1) - 2 * ED_GADGET_DISTANCE);
2145 }
2146
2147 static int getMaxInfoTextLength()
2148 {
2149   return (SXSIZE / getFontWidth(FONT_TEXT_2));
2150 }
2151
2152 static char *getElementInfoText(int element)
2153 {
2154   char *info_text = NULL;
2155
2156   if (element < NUM_FILE_ELEMENTS)
2157   {
2158     if (element_info[element].custom_description != NULL)
2159       info_text = element_info[element].custom_description;
2160     else if (element_info[element].editor_description != NULL)
2161       info_text = element_info[element].editor_description;
2162   }
2163
2164   if (info_text == NULL)
2165   {
2166     info_text = "unknown";
2167
2168     Error(ERR_WARN, "no element description for element %d", element);
2169   }
2170
2171   return info_text;
2172 }
2173
2174 static void ScrollMiniLevel(int from_x, int from_y, int scroll)
2175 {
2176   int x,y;
2177   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
2178   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
2179
2180   BlitBitmap(drawto, drawto,
2181              SX + (dx == -1 ? MINI_TILEX : 0),
2182              SY + (dy == -1 ? MINI_TILEY : 0),
2183              (ed_fieldx * MINI_TILEX) - (dx != 0 ? MINI_TILEX : 0),
2184              (ed_fieldy * MINI_TILEY) - (dy != 0 ? MINI_TILEY : 0),
2185              SX + (dx == +1 ? MINI_TILEX : 0),
2186              SY + (dy == +1 ? MINI_TILEY : 0));
2187   if (dx)
2188   {
2189     x = (dx == 1 ? 0 : ed_fieldx - 1);
2190     for(y=0; y<ed_fieldy; y++)
2191       DrawMiniElementOrWall(x, y, from_x, from_y);
2192   }
2193   else if (dy)
2194   {
2195     y = (dy == 1 ? 0 : ed_fieldy - 1);
2196     for(x=0; x<ed_fieldx; x++)
2197       DrawMiniElementOrWall(x, y, from_x, from_y);
2198   }
2199
2200   redraw_mask |= REDRAW_FIELD;
2201   BackToFront();
2202 }
2203
2204 static void CreateControlButtons()
2205 {
2206   Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2207   struct GadgetInfo *gi;
2208   unsigned long event_mask;
2209   int i;
2210
2211   /* create toolbox buttons */
2212   for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
2213   {
2214     int id = i;
2215     int width, height;
2216     int gd_xoffset, gd_yoffset;
2217     int gd_x1, gd_x2, gd_y1, gd_y2;
2218     int button_type;
2219     int radio_button_nr;
2220     boolean checked;
2221
2222     if (id == GADGET_ID_SINGLE_ITEMS ||
2223         id == GADGET_ID_CONNECTED_ITEMS ||
2224         id == GADGET_ID_LINE ||
2225         id == GADGET_ID_ARC ||
2226         id == GADGET_ID_TEXT ||
2227         id == GADGET_ID_RECTANGLE ||
2228         id == GADGET_ID_FILLED_BOX ||
2229         id == GADGET_ID_FLOOD_FILL ||
2230         id == GADGET_ID_GRAB_BRUSH ||
2231         id == GADGET_ID_PICK_ELEMENT)
2232     {
2233       button_type = GD_TYPE_RADIO_BUTTON;
2234       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
2235       checked = (id == drawing_function ? TRUE : FALSE);
2236       event_mask = GD_EVENT_PRESSED;
2237     }
2238     else
2239     {
2240       button_type = GD_TYPE_NORMAL_BUTTON;
2241       radio_button_nr = RADIO_NR_NONE;
2242       checked = FALSE;
2243
2244       if (id == GADGET_ID_WRAP_LEFT ||
2245           id == GADGET_ID_WRAP_RIGHT ||
2246           id == GADGET_ID_WRAP_UP ||
2247           id == GADGET_ID_WRAP_DOWN)
2248         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
2249       else
2250         event_mask = GD_EVENT_RELEASED;
2251     }
2252
2253     if (id < ED_NUM_CTRL1_BUTTONS)
2254     {
2255       int x = i % ED_CTRL1_BUTTONS_HORIZ;
2256       int y = i / ED_CTRL1_BUTTONS_HORIZ;
2257
2258       gd_xoffset = ED_CTRL1_BUTTONS_XPOS + x * ED_CTRL1_BUTTON_XSIZE;
2259       gd_yoffset = ED_CTRL1_BUTTONS_YPOS + y * ED_CTRL1_BUTTON_YSIZE;
2260       width = ED_CTRL1_BUTTON_XSIZE;
2261       height = ED_CTRL1_BUTTON_YSIZE;
2262     }
2263     else
2264     {
2265       int x = (i - ED_NUM_CTRL1_BUTTONS) % ED_CTRL2_BUTTONS_HORIZ;
2266       int y = (i - ED_NUM_CTRL1_BUTTONS) / ED_CTRL2_BUTTONS_HORIZ;
2267
2268       gd_xoffset = ED_CTRL2_BUTTONS_XPOS + x * ED_CTRL2_BUTTON_XSIZE;
2269       gd_yoffset = ED_CTRL2_BUTTONS_YPOS + y * ED_CTRL2_BUTTON_YSIZE;
2270       width = ED_CTRL2_BUTTON_XSIZE;
2271       height = ED_CTRL2_BUTTON_YSIZE;
2272     }
2273
2274     gd_x1 = DOOR_GFX_PAGEX8 + gd_xoffset;
2275     gd_x2 = DOOR_GFX_PAGEX7 + gd_xoffset;
2276     gd_y1  = DOOR_GFX_PAGEY1 + ED_CTRL_BUTTONS_GFX_YPOS + gd_yoffset;
2277     gd_y2  = DOOR_GFX_PAGEY1 + ED_CTRL_BUTTONS_ALT_GFX_YPOS + gd_yoffset;
2278
2279     gi = CreateGadget(GDI_CUSTOM_ID, id,
2280                       GDI_CUSTOM_TYPE_ID, i,
2281                       GDI_INFO_TEXT, control_info[i].text,
2282                       GDI_X, EX + gd_xoffset,
2283                       GDI_Y, EY + gd_yoffset,
2284                       GDI_WIDTH, width,
2285                       GDI_HEIGHT, height,
2286                       GDI_TYPE, button_type,
2287                       GDI_STATE, GD_BUTTON_UNPRESSED,
2288                       GDI_RADIO_NR, radio_button_nr,
2289                       GDI_CHECKED, checked,
2290                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2291                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y1,
2292                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y2,
2293                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
2294                       GDI_EVENT_MASK, event_mask,
2295                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2296                       GDI_CALLBACK_ACTION, HandleControlButtons,
2297                       GDI_END);
2298
2299     if (gi == NULL)
2300       Error(ERR_EXIT, "cannot create gadget");
2301
2302     level_editor_gadget[id] = gi;
2303   }
2304
2305   /* create buttons for scrolling of drawing area and element list */
2306   for (i=0; i<ED_NUM_SCROLLBUTTONS; i++)
2307   {
2308     int id = scrollbutton_info[i].gadget_id;
2309     int x, y, width, height;
2310     int gd_x1, gd_x2, gd_y1, gd_y2;
2311
2312     x = scrollbutton_info[i].x;
2313     y = scrollbutton_info[i].y;
2314
2315     event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
2316
2317     if (id == GADGET_ID_SCROLL_LIST_UP ||
2318         id == GADGET_ID_SCROLL_LIST_DOWN)
2319     {
2320       x += DX;
2321       y += DY;
2322       width = ED_SCROLLBUTTON2_XSIZE;
2323       height = ED_SCROLLBUTTON2_YSIZE;
2324       gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[i].gd_x;
2325       gd_y1 = DOOR_GFX_PAGEY1 + scrollbutton_info[i].gd_y;
2326       gd_x2 = gd_x1 - ED_SCROLLBUTTON2_XSIZE;
2327       gd_y2 = gd_y1;
2328     }
2329     else
2330     {
2331       x += SX;
2332       y += SY;
2333       width = ED_SCROLLBUTTON_XSIZE;
2334       height = ED_SCROLLBUTTON_YSIZE;
2335       gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[i].gd_x;
2336       gd_y1 = DOOR_GFX_PAGEY1 + scrollbutton_info[i].gd_y;
2337       gd_x2 = gd_x1 - ED_SCROLLBUTTON_XSIZE;
2338       gd_y2 = gd_y1;
2339     }
2340
2341     gi = CreateGadget(GDI_CUSTOM_ID, id,
2342                       GDI_CUSTOM_TYPE_ID, i,
2343                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
2344                       GDI_X, x,
2345                       GDI_Y, y,
2346                       GDI_WIDTH, width,
2347                       GDI_HEIGHT, height,
2348                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
2349                       GDI_STATE, GD_BUTTON_UNPRESSED,
2350                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2351                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
2352                       GDI_EVENT_MASK, event_mask,
2353                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2354                       GDI_CALLBACK_ACTION, HandleControlButtons,
2355                       GDI_END);
2356
2357     if (gi == NULL)
2358       Error(ERR_EXIT, "cannot create gadget");
2359
2360     level_editor_gadget[id] = gi;
2361   }
2362
2363   /* create buttons for element list */
2364   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
2365   {
2366     Bitmap *deco_bitmap;
2367     int deco_x, deco_y, deco_xpos, deco_ypos;
2368     int gd_xoffset, gd_yoffset;
2369     int gd_x1, gd_x2, gd_y;
2370     int x = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
2371     int y = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
2372     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
2373     int element = editor_elements[i];
2374
2375     event_mask = GD_EVENT_RELEASED;
2376
2377     gd_xoffset = ED_ELEMENTLIST_XPOS + x * ED_ELEMENTLIST_XSIZE;
2378     gd_yoffset = ED_ELEMENTLIST_YPOS + y * ED_ELEMENTLIST_YSIZE;
2379
2380     gd_x1 = DOOR_GFX_PAGEX6 + ED_ELEMENTLIST_XPOS + ED_ELEMENTLIST_XSIZE;
2381     gd_x2 = DOOR_GFX_PAGEX6 + ED_ELEMENTLIST_XPOS;
2382     gd_y  = DOOR_GFX_PAGEY1 + ED_ELEMENTLIST_YPOS;
2383
2384     getMiniGraphicSource(el2edimg(element), &deco_bitmap, &deco_x, &deco_y);
2385     deco_xpos = (ED_ELEMENTLIST_XSIZE - MINI_TILEX) / 2;
2386     deco_ypos = (ED_ELEMENTLIST_YSIZE - MINI_TILEY) / 2;
2387
2388     gi = CreateGadget(GDI_CUSTOM_ID, id,
2389                       GDI_CUSTOM_TYPE_ID, i,
2390                       GDI_INFO_TEXT, getElementInfoText(element),
2391                       GDI_X, DX + gd_xoffset,
2392                       GDI_Y, DY + gd_yoffset,
2393                       GDI_WIDTH, ED_ELEMENTLIST_XSIZE,
2394                       GDI_HEIGHT, ED_ELEMENTLIST_YSIZE,
2395                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
2396                       GDI_STATE, GD_BUTTON_UNPRESSED,
2397                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2398                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2399                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
2400                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
2401                       GDI_DECORATION_SIZE, MINI_TILEX, MINI_TILEY,
2402                       GDI_DECORATION_SHIFTING, 1, 1,
2403                       GDI_EVENT_MASK, event_mask,
2404                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2405                       GDI_CALLBACK_ACTION, HandleControlButtons,
2406                       GDI_END);
2407
2408     if (gi == NULL)
2409       Error(ERR_EXIT, "cannot create gadget");
2410
2411     level_editor_gadget[id] = gi;
2412   }
2413 }
2414
2415 static void CreateCounterButtons()
2416 {
2417   int max_infotext_len = getMaxInfoTextLength();
2418   int i;
2419
2420   for (i=0; i<ED_NUM_COUNTERBUTTONS; i++)
2421   {
2422     int j;
2423     int xpos = SX + counterbutton_info[i].x;    /* xpos of down count button */
2424     int ypos = SY + counterbutton_info[i].y;
2425     int xoffset = 0;
2426
2427     /* determine horizontal offset for leading counter text */
2428     if (counterbutton_info[i].text_left != NULL)
2429       xoffset = (getFontWidth(FONT_TEXT_1) *
2430                  strlen(counterbutton_info[i].text_left) +
2431                  2 * ED_GADGET_DISTANCE);
2432
2433     for (j=0; j<2; j++)
2434     {
2435       Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2436       struct GadgetInfo *gi;
2437       int id = (j == 0 ?
2438                 counterbutton_info[i].gadget_id_down :
2439                 counterbutton_info[i].gadget_id_up);
2440       int gd_xoffset;
2441       int gd_x, gd_x1, gd_x2, gd_y;
2442       int x_size, y_size;
2443       unsigned long event_mask;
2444       char infotext[max_infotext_len + 1];
2445
2446       event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
2447
2448       if (i == ED_COUNTER_ID_SELECT_LEVEL)
2449       {
2450         int sid = (j == 0 ?
2451                    ED_SCROLLBUTTON_ID_AREA_LEFT :
2452                    ED_SCROLLBUTTON_ID_AREA_RIGHT);
2453
2454         event_mask |= GD_EVENT_RELEASED;
2455
2456         if (j == 1)
2457           xpos += 2 * ED_GADGET_DISTANCE;
2458         ypos += ED_GADGET_DISTANCE;
2459
2460         gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[sid].gd_x;
2461         gd_x2 = gd_x1 - ED_SCROLLBUTTON_XSIZE;
2462         gd_y  = DOOR_GFX_PAGEY1 + scrollbutton_info[sid].gd_y;
2463         x_size = ED_SCROLLBUTTON_XSIZE;
2464         y_size = ED_SCROLLBUTTON_YSIZE;
2465       }
2466       else
2467       {
2468         gd_xoffset = (j == 0 ? ED_BUTTON_MINUS_XPOS : ED_BUTTON_PLUS_XPOS);
2469         gd_x1 = DOOR_GFX_PAGEX4 + gd_xoffset;
2470         gd_x2 = DOOR_GFX_PAGEX3 + gd_xoffset;
2471         gd_y  = DOOR_GFX_PAGEY1 + ED_BUTTON_COUNT_YPOS;
2472         x_size = ED_BUTTON_COUNT_XSIZE;
2473         y_size = ED_BUTTON_COUNT_YSIZE;
2474       }
2475
2476       sprintf(infotext, "%s counter value by 1, 5 or 10",
2477               (j == 0 ? "decrease" : "increase"));
2478
2479       gi = CreateGadget(GDI_CUSTOM_ID, id,
2480                         GDI_CUSTOM_TYPE_ID, i,
2481                         GDI_INFO_TEXT, infotext,
2482                         GDI_X, xpos + xoffset,
2483                         GDI_Y, ypos,
2484                         GDI_WIDTH, x_size,
2485                         GDI_HEIGHT, y_size,
2486                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
2487                         GDI_STATE, GD_BUTTON_UNPRESSED,
2488                         GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2489                         GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2490                         GDI_EVENT_MASK, event_mask,
2491                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2492                         GDI_CALLBACK_ACTION, HandleCounterButtons,
2493                         GDI_END);
2494
2495       if (gi == NULL)
2496         Error(ERR_EXIT, "cannot create gadget");
2497
2498       level_editor_gadget[id] = gi;
2499       xpos += gi->width + ED_GADGET_DISTANCE;   /* xpos of text count button */
2500
2501       if (j == 0)
2502       {
2503         int font_type = FONT_INPUT_1;
2504         int font_type_active = FONT_INPUT_1_ACTIVE;
2505         int gd_width = ED_WIN_COUNT_XSIZE;
2506
2507         id = counterbutton_info[i].gadget_id_text;
2508         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
2509
2510         if (i == ED_COUNTER_ID_SELECT_LEVEL)
2511         {
2512           font_type = FONT_LEVEL_NUMBER;
2513           font_type_active = FONT_LEVEL_NUMBER;
2514
2515           xpos += 2 * ED_GADGET_DISTANCE;
2516           ypos -= ED_GADGET_DISTANCE;
2517
2518           gd_x = DOOR_GFX_PAGEX6 + ED_WIN_COUNT2_XPOS;
2519           gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT2_YPOS;
2520           gd_width = ED_WIN_COUNT2_XSIZE;
2521         }
2522         else
2523         {
2524           gd_x = DOOR_GFX_PAGEX4 + ED_WIN_COUNT_XPOS;
2525           gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT_YPOS;
2526         }
2527
2528         gi = CreateGadget(GDI_CUSTOM_ID, id,
2529                           GDI_CUSTOM_TYPE_ID, i,
2530                           GDI_INFO_TEXT, "enter counter value",
2531                           GDI_X, xpos + xoffset,
2532                           GDI_Y, ypos,
2533                           GDI_TYPE, GD_TYPE_TEXTINPUT_NUMERIC,
2534                           GDI_NUMBER_VALUE, 0,
2535                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
2536                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
2537                           GDI_TEXT_SIZE, 3,
2538                           GDI_TEXT_FONT, font_type,
2539                           GDI_TEXT_FONT_ACTIVE, font_type_active,
2540                           GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
2541                           GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
2542                           GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
2543                           GDI_DESIGN_WIDTH, gd_width,
2544                           GDI_EVENT_MASK, event_mask,
2545                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2546                           GDI_CALLBACK_ACTION, HandleCounterButtons,
2547                           GDI_END);
2548
2549         if (gi == NULL)
2550           Error(ERR_EXIT, "cannot create gadget");
2551
2552         level_editor_gadget[id] = gi;
2553         xpos += gi->width + ED_GADGET_DISTANCE; /* xpos of up count button */
2554       }
2555     }
2556   }
2557 }
2558
2559 static void CreateDrawingAreas()
2560 {
2561   struct GadgetInfo *gi;
2562   unsigned long event_mask;
2563   int id;
2564   int i;
2565
2566   event_mask =
2567     GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
2568     GD_EVENT_OFF_BORDERS;
2569
2570   /* one for the level drawing area ... */
2571   id = GADGET_ID_DRAWING_LEVEL;
2572   gi = CreateGadget(GDI_CUSTOM_ID, id,
2573                     GDI_X, SX,
2574                     GDI_Y, SY,
2575                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2576                     GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
2577                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2578                     GDI_EVENT_MASK, event_mask,
2579                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2580                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2581                     GDI_END);
2582
2583   if (gi == NULL)
2584     Error(ERR_EXIT, "cannot create gadget");
2585
2586   level_editor_gadget[id] = gi;
2587
2588   /* ... up to eight areas for element content ... */
2589   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
2590   {
2591     int gx = SX + ED_AREA_ELEM_CONTENT_XPOS + 5 * (i % 4) * MINI_TILEX;
2592     int gy = SX + ED_AREA_ELEM_CONTENT_YPOS + 6 * (i / 4) * MINI_TILEY;
2593
2594     id = GADGET_ID_ELEMENT_CONTENT_0 + i;
2595     gi = CreateGadget(GDI_CUSTOM_ID, id,
2596                       GDI_CUSTOM_TYPE_ID, i,
2597                       GDI_X, gx,
2598                       GDI_Y, gy,
2599                       GDI_WIDTH, 3 * MINI_TILEX,
2600                       GDI_HEIGHT, 3 * MINI_TILEY,
2601                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
2602                       GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2603                       GDI_EVENT_MASK, event_mask,
2604                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2605                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
2606                       GDI_END);
2607
2608     if (gi == NULL)
2609       Error(ERR_EXIT, "cannot create gadget");
2610
2611     level_editor_gadget[id] = gi;
2612   }
2613
2614   /* ... one for the amoeba content ... */
2615   id = GADGET_ID_AMOEBA_CONTENT;
2616   gi = CreateGadget(GDI_CUSTOM_ID, id,
2617                     GDI_X, SX + ED_AREA_ELEM_CONTENT_XPOS,
2618                     GDI_Y, SY + ED_AREA_ELEM_CONTENT_YPOS,
2619                     GDI_WIDTH, MINI_TILEX,
2620                     GDI_HEIGHT, MINI_TILEY,
2621                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2622                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2623                     GDI_EVENT_MASK, event_mask,
2624                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2625                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2626                     GDI_END);
2627
2628   if (gi == NULL)
2629     Error(ERR_EXIT, "cannot create gadget");
2630
2631   level_editor_gadget[id] = gi;
2632
2633   /* ... one for each custom element optional graphic element ... */
2634   id = GADGET_ID_CUSTOM_GRAPHIC;
2635   gi = CreateGadget(GDI_CUSTOM_ID, id,
2636                     GDI_X, SX + ED_AREA_ELEM_CONTENT3_XPOS,
2637                     GDI_Y, SY + ED_AREA_ELEM_CONTENT3_YPOS,
2638                     GDI_WIDTH, MINI_TILEX,
2639                     GDI_HEIGHT, MINI_TILEY,
2640                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2641                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2642                     GDI_EVENT_MASK, event_mask,
2643                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2644                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2645                     GDI_END);
2646
2647   if (gi == NULL)
2648     Error(ERR_EXIT, "cannot create gadget");
2649
2650   level_editor_gadget[id] = gi;
2651
2652   /* ... one areas for custom element explosion content ... */
2653   id = GADGET_ID_CUSTOM_CONTENT;
2654   gi = CreateGadget(GDI_CUSTOM_ID, id,
2655                     GDI_CUSTOM_TYPE_ID, i,
2656                     GDI_X, SX + ED_AREA_ELEM_CONTENT4_XPOS,
2657                     GDI_Y, SX + ED_AREA_ELEM_CONTENT4_YPOS,
2658                     GDI_WIDTH, 3 * MINI_TILEX,
2659                     GDI_HEIGHT, 3 * MINI_TILEY,
2660                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2661                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2662                     GDI_EVENT_MASK, event_mask,
2663                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2664                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2665                     GDI_END);
2666
2667   if (gi == NULL)
2668     Error(ERR_EXIT, "cannot create gadget");
2669
2670   level_editor_gadget[id] = gi;
2671
2672   /* ... one for each custom element change target element ... */
2673   id = GADGET_ID_CUSTOM_CHANGED;
2674   gi = CreateGadget(GDI_CUSTOM_ID, id,
2675                     GDI_X, SX + ED_AREA_ELEM_CONTENT2_XPOS,
2676                     GDI_Y, SY + ED_AREA_ELEM_CONTENT2_YPOS,
2677                     GDI_WIDTH, MINI_TILEX,
2678                     GDI_HEIGHT, MINI_TILEY,
2679                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2680                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2681                     GDI_EVENT_MASK, event_mask,
2682                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2683                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2684                     GDI_END);
2685
2686   if (gi == NULL)
2687     Error(ERR_EXIT, "cannot create gadget");
2688
2689   level_editor_gadget[id] = gi;
2690
2691   /* ... and one for random placement background restrictions */
2692
2693   id = GADGET_ID_RANDOM_BACKGROUND;
2694   gi = CreateGadget(GDI_CUSTOM_ID, id,
2695                     GDI_X, SX + ED_AREA_RANDOM_BACKGROUND_XPOS,
2696                     GDI_Y, SY + ED_AREA_RANDOM_BACKGROUND_YPOS,
2697                     GDI_WIDTH, MINI_TILEX,
2698                     GDI_HEIGHT, MINI_TILEY,
2699                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2700                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2701                     GDI_EVENT_MASK, event_mask,
2702                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2703                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2704                     GDI_END);
2705
2706   if (gi == NULL)
2707     Error(ERR_EXIT, "cannot create gadget");
2708
2709   level_editor_gadget[id] = gi;
2710 }
2711
2712 static void CreateTextInputGadgets()
2713 {
2714   int max_infotext_len = getMaxInfoTextLength();
2715   int i;
2716
2717   for (i=0; i<ED_NUM_TEXTINPUT; i++)
2718   {
2719     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2720     int gd_x, gd_y;
2721     struct GadgetInfo *gi;
2722     unsigned long event_mask;
2723     char infotext[MAX_OUTPUT_LINESIZE + 1];
2724     int id = textinput_info[i].gadget_id;
2725
2726     event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
2727
2728     gd_x = DOOR_GFX_PAGEX4 + ED_WIN_COUNT_XPOS;
2729     gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT_YPOS;
2730
2731     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
2732     infotext[max_infotext_len] = '\0';
2733
2734     gi = CreateGadget(GDI_CUSTOM_ID, id,
2735                       GDI_CUSTOM_TYPE_ID, i,
2736                       GDI_INFO_TEXT, infotext,
2737                       GDI_X, SX + textinput_info[i].x,
2738                       GDI_Y, SY + textinput_info[i].y,
2739                       GDI_TYPE, GD_TYPE_TEXTINPUT_ALPHANUMERIC,
2740                       GDI_TEXT_VALUE, textinput_info[i].value,
2741                       GDI_TEXT_SIZE, textinput_info[i].size,
2742                       GDI_TEXT_FONT, FONT_INPUT_1,
2743                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
2744                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
2745                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
2746                       GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
2747                       GDI_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
2748                       GDI_EVENT_MASK, event_mask,
2749                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2750                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
2751                       GDI_END);
2752
2753     if (gi == NULL)
2754       Error(ERR_EXIT, "cannot create gadget");
2755
2756     level_editor_gadget[id] = gi;
2757   }
2758 }
2759
2760 static void CreateSelectboxGadgets()
2761 {
2762   int max_infotext_len = getMaxInfoTextLength();
2763   int i, j;
2764
2765   for (i=0; i<ED_NUM_SELECTBOX; i++)
2766   {
2767     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2768     int gd_x, gd_y;
2769     int xoffset = 0;
2770     struct GadgetInfo *gi;
2771     unsigned long event_mask;
2772     char infotext[MAX_OUTPUT_LINESIZE + 1];
2773     int id = selectbox_info[i].gadget_id;
2774
2775     if (selectbox_info[i].size == -1)   /* dynamically determine size */
2776     {
2777       /* (we cannot use -1 for uninitialized values if we directly compare
2778          with results from strlen(), because the '<' and '>' operation will
2779          implicitely cast -1 to an unsigned integer value!) */
2780       selectbox_info[i].size = 0;
2781
2782       for (j=0; selectbox_info[i].options[j].text != NULL; j++)
2783         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
2784           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
2785
2786       selectbox_info[i].size++;         /* add one character empty space */
2787     }
2788
2789     event_mask = GD_EVENT_RELEASED |
2790       GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
2791
2792     gd_x = DOOR_GFX_PAGEX4 + ED_SELECTBOX_XPOS;
2793     gd_y = DOOR_GFX_PAGEY1 + ED_SELECTBOX_YPOS;
2794
2795     /* determine horizontal offset for leading selectbox text */
2796     if (selectbox_info[i].text_left != NULL)
2797       xoffset = (getFontWidth(FONT_TEXT_1) *
2798                  strlen(selectbox_info[i].text_left) +
2799                  2 * ED_GADGET_DISTANCE);
2800
2801     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
2802     infotext[max_infotext_len] = '\0';
2803
2804     gi = CreateGadget(GDI_CUSTOM_ID, id,
2805                       GDI_CUSTOM_TYPE_ID, i,
2806                       GDI_INFO_TEXT, infotext,
2807                       GDI_X, SX + selectbox_info[i].x + xoffset,
2808                       GDI_Y, SY + selectbox_info[i].y,
2809                       GDI_TYPE, GD_TYPE_SELECTBOX,
2810                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
2811                       GDI_SELECTBOX_INDEX, selectbox_info[i].index,
2812                       GDI_TEXT_SIZE, selectbox_info[i].size,
2813                       GDI_TEXT_FONT, FONT_INPUT_1,
2814                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
2815                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
2816                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
2817                       GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
2818                       GDI_BORDER_SIZE_SELECTBUTTON, getFontWidth(FONT_INPUT_1),
2819                       GDI_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
2820                       GDI_EVENT_MASK, event_mask,
2821                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2822                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
2823                       GDI_END);
2824
2825     if (gi == NULL)
2826       Error(ERR_EXIT, "cannot create gadget");
2827
2828     level_editor_gadget[id] = gi;
2829   }
2830 }
2831
2832 static void CreateTextbuttonGadgets()
2833 {
2834   int max_infotext_len = getMaxInfoTextLength();
2835   int i;
2836
2837   for (i=0; i<ED_NUM_TEXTBUTTON; i++)
2838   {
2839     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2840     int gd_x1, gd_x2, gd_y1, gd_y2;
2841     struct GadgetInfo *gi;
2842     unsigned long event_mask;
2843     char infotext[MAX_OUTPUT_LINESIZE + 1];
2844     int id = textbutton_info[i].gadget_id;
2845
2846     if (textbutton_info[i].size == -1)  /* dynamically determine size */
2847       textbutton_info[i].size = strlen(textbutton_info[i].text);
2848
2849     event_mask = GD_EVENT_RELEASED;
2850
2851     if (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_ADVANCED)
2852     {
2853       gd_x1 = DOOR_GFX_PAGEX4 + ED_TEXTBUTTON_TAB_XPOS;
2854       gd_x2 = DOOR_GFX_PAGEX3 + ED_TEXTBUTTON_TAB_XPOS;
2855       gd_y1 = DOOR_GFX_PAGEY1 + ED_TEXTBUTTON_TAB_YPOS;
2856       gd_y2 = DOOR_GFX_PAGEY1 + ED_TEXTBUTTON_TAB_INACTIVE_YPOS;
2857     }
2858     else
2859     {
2860       gd_x1 = DOOR_GFX_PAGEX4 + ED_TEXTBUTTON_XPOS;
2861       gd_x2 = DOOR_GFX_PAGEX3 + ED_TEXTBUTTON_XPOS;
2862       gd_y1 = DOOR_GFX_PAGEY1 + ED_TEXTBUTTON_YPOS;
2863       gd_y2 = DOOR_GFX_PAGEY1 + ED_TEXTBUTTON_INACTIVE_YPOS;
2864     }
2865
2866     sprintf(infotext, "%s", textbutton_info[i].infotext);
2867     infotext[max_infotext_len] = '\0';
2868
2869     gi = CreateGadget(GDI_CUSTOM_ID, id,
2870                       GDI_CUSTOM_TYPE_ID, i,
2871                       GDI_INFO_TEXT, infotext,
2872                       GDI_X, SX + textbutton_info[i].x,
2873                       GDI_Y, SY + textbutton_info[i].y,
2874                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
2875                       GDI_TEXT_VALUE, textbutton_info[i].text,
2876                       GDI_TEXT_SIZE, textbutton_info[i].size,
2877                       GDI_TEXT_FONT, FONT_INPUT_2_ACTIVE,
2878                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2,
2879                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2880                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y1,
2881                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y2,
2882                       GDI_BORDER_SIZE, ED_BORDER2_SIZE, ED_BORDER_SIZE,
2883                       GDI_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
2884                       GDI_DECORATION_SHIFTING, 1, 1,
2885                       GDI_EVENT_MASK, event_mask,
2886                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2887                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
2888                       GDI_END);
2889
2890     if (gi == NULL)
2891       Error(ERR_EXIT, "cannot create gadget");
2892
2893     level_editor_gadget[id] = gi;
2894   }
2895 }
2896
2897 static void CreateScrollbarGadgets()
2898 {
2899   int i;
2900
2901   for (i=0; i<ED_NUM_SCROLLBARS; i++)
2902   {
2903     int id = scrollbar_info[i].gadget_id;
2904     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2905     int gd_x1, gd_x2, gd_y1, gd_y2;
2906     struct GadgetInfo *gi;
2907     int items_max, items_visible, item_position;
2908     unsigned long event_mask;
2909
2910     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
2911     {
2912       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
2913       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
2914       item_position = 0;
2915     }
2916     else        /* drawing area scrollbars */
2917     {
2918       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
2919       {
2920         items_max = MAX(lev_fieldx + 2, ed_fieldx);
2921         items_visible = ed_fieldx;
2922         item_position = 0;
2923       }
2924       else
2925       {
2926         items_max = MAX(lev_fieldy + 2, ed_fieldy);
2927         items_visible = ed_fieldy;
2928         item_position = 0;
2929       }
2930     }
2931
2932     event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
2933
2934     gd_x1 = DOOR_GFX_PAGEX8 + scrollbar_info[i].gd_x;
2935     gd_x2 = (gd_x1 - (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL ?
2936                       scrollbar_info[i].height : scrollbar_info[i].width));
2937     gd_y1 = DOOR_GFX_PAGEY1 + scrollbar_info[i].gd_y;
2938     gd_y2 = DOOR_GFX_PAGEY1 + scrollbar_info[i].gd_y;
2939
2940     gi = CreateGadget(GDI_CUSTOM_ID, id,
2941                       GDI_CUSTOM_TYPE_ID, i,
2942                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
2943                       GDI_X, scrollbar_info[i].x,
2944                       GDI_Y, scrollbar_info[i].y,
2945                       GDI_WIDTH, scrollbar_info[i].width,
2946                       GDI_HEIGHT, scrollbar_info[i].height,
2947                       GDI_TYPE, scrollbar_info[i].type,
2948                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
2949                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
2950                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
2951                       GDI_STATE, GD_BUTTON_UNPRESSED,
2952                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2953                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
2954                       GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
2955                       GDI_EVENT_MASK, event_mask,
2956                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2957                       GDI_CALLBACK_ACTION, HandleControlButtons,
2958                       GDI_END);
2959
2960     if (gi == NULL)
2961       Error(ERR_EXIT, "cannot create gadget");
2962
2963     level_editor_gadget[id] = gi;
2964   }
2965 }
2966
2967 static void CreateCheckbuttonGadgets()
2968 {
2969   Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2970   struct GadgetInfo *gi;
2971   unsigned long event_mask;
2972   int gd_x1, gd_x2, gd_x3, gd_x4, gd_y;
2973   boolean checked;
2974   int i;
2975
2976   event_mask = GD_EVENT_PRESSED;
2977
2978   gd_x1 = DOOR_GFX_PAGEX4 + ED_CHECKBUTTON_UNCHECKED_XPOS;
2979   gd_x2 = DOOR_GFX_PAGEX3 + ED_CHECKBUTTON_UNCHECKED_XPOS;
2980   gd_x3 = DOOR_GFX_PAGEX4 + ED_CHECKBUTTON_CHECKED_XPOS;
2981   gd_x4 = DOOR_GFX_PAGEX3 + ED_CHECKBUTTON_CHECKED_XPOS;
2982   gd_y  = DOOR_GFX_PAGEY1 + ED_RADIOBUTTON_YPOS;
2983
2984   for (i=0; i<ED_NUM_RADIOBUTTONS; i++)
2985   {
2986     int id = radiobutton_info[i].gadget_id;
2987
2988     checked =
2989       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
2990
2991     gi = CreateGadget(GDI_CUSTOM_ID, id,
2992                       GDI_CUSTOM_TYPE_ID, i,
2993                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
2994                       GDI_X, SX + radiobutton_info[i].x,
2995                       GDI_Y, SY + radiobutton_info[i].y,
2996                       GDI_WIDTH, ED_CHECKBUTTON_XSIZE,
2997                       GDI_HEIGHT, ED_CHECKBUTTON_YSIZE,
2998                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
2999                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
3000                       GDI_CHECKED, checked,
3001                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
3002                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
3003                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x3, gd_y,
3004                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x4, gd_y,
3005                       GDI_EVENT_MASK, event_mask,
3006                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
3007                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
3008                       GDI_END);
3009
3010     if (gi == NULL)
3011       Error(ERR_EXIT, "cannot create gadget");
3012
3013     level_editor_gadget[id] = gi;
3014   }
3015
3016   for (i=0; i<ED_NUM_CHECKBUTTONS; i++)
3017   {
3018     int id = checkbutton_info[i].gadget_id;
3019
3020     if (id == GADGET_ID_STICK_ELEMENT)
3021       gd_y  = DOOR_GFX_PAGEY1 + ED_STICKYBUTTON_YPOS;
3022     else
3023       gd_y  = DOOR_GFX_PAGEY1 + ED_CHECKBUTTON_YPOS;
3024
3025     gi = CreateGadget(GDI_CUSTOM_ID, id,
3026                       GDI_CUSTOM_TYPE_ID, i,
3027                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
3028                       GDI_X, SX + checkbutton_info[i].x,
3029                       GDI_Y, SY + checkbutton_info[i].y,
3030                       GDI_WIDTH, ED_CHECKBUTTON_XSIZE,
3031                       GDI_HEIGHT, ED_CHECKBUTTON_YSIZE,
3032                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
3033                       GDI_CHECKED, *checkbutton_info[i].value,
3034                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
3035                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
3036                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x3, gd_y,
3037                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x4, gd_y,
3038                       GDI_EVENT_MASK, event_mask,
3039                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
3040                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
3041                       GDI_END);
3042
3043     if (gi == NULL)
3044       Error(ERR_EXIT, "cannot create gadget");
3045
3046     level_editor_gadget[id] = gi;
3047   }
3048 }
3049
3050 void CreateLevelEditorGadgets()
3051 {
3052   int old_game_status = game_status;
3053
3054   /* setting 'game_status' is needed to get the right fonts for the editor */
3055   game_status = GAME_MODE_EDITOR;
3056
3057   ReinitializeElementList();
3058
3059   CreateControlButtons();
3060   CreateCounterButtons();
3061   CreateDrawingAreas();
3062   CreateTextInputGadgets();
3063   CreateSelectboxGadgets();
3064   CreateTextbuttonGadgets();
3065   CreateScrollbarGadgets();
3066   CreateCheckbuttonGadgets();
3067
3068   game_status = old_game_status;
3069 }
3070
3071 void FreeLevelEditorGadgets()
3072 {
3073   int i;
3074
3075   for (i=0; i<NUM_EDITOR_GADGETS; i++)
3076     FreeGadget(level_editor_gadget[i]);
3077 }
3078
3079 static void MapCounterButtons(int id)
3080 {
3081   char infotext[MAX_OUTPUT_LINESIZE + 1];
3082   int max_infotext_len = getMaxInfoTextLength();
3083   int xoffset_above = 0;
3084   int yoffset_above = -(MINI_TILEX + ED_GADGET_DISTANCE);
3085   int xoffset_left = 0;
3086   int yoffset_left = ED_BORDER_SIZE;
3087   int xoffset_right = getCounterGadgetWidth();
3088   int yoffset_right = ED_BORDER_SIZE;
3089   int x, y;
3090
3091   if (counterbutton_info[id].text_above)
3092   {
3093     x = SX + counterbutton_info[id].x + xoffset_above;
3094     y = SY + counterbutton_info[id].y + yoffset_above;
3095
3096     sprintf(infotext, "%s:", counterbutton_info[id].text_above);
3097     infotext[max_infotext_len] = '\0';
3098     DrawText(x, y, infotext, FONT_TEXT_1);
3099   }
3100
3101   if (counterbutton_info[id].text_left)
3102   {
3103     x = SX + counterbutton_info[id].x + xoffset_left;
3104     y = SY + counterbutton_info[id].y + yoffset_left;
3105
3106     sprintf(infotext, "%s", counterbutton_info[id].text_left);
3107     infotext[max_infotext_len] = '\0';
3108     DrawText(x, y, infotext, FONT_TEXT_1);
3109   }
3110
3111   if (counterbutton_info[id].text_right)
3112   {
3113     int gadget_id = counterbutton_info[id].gadget_id_down;
3114
3115     x = level_editor_gadget[gadget_id]->x + xoffset_right;
3116     y = SY + counterbutton_info[id].y + yoffset_right;
3117
3118     sprintf(infotext, "%s", counterbutton_info[id].text_right);
3119     infotext[max_infotext_len] = '\0';
3120     DrawText(x, y, infotext, FONT_TEXT_1);
3121   }
3122
3123   ModifyEditorCounter(id, *counterbutton_info[id].value);
3124
3125   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_down]);
3126   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_text]);
3127   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_up]);
3128 }
3129
3130 static void MapControlButtons()
3131 {
3132   int counter_id;
3133   int i;
3134
3135   /* map toolbox buttons */
3136   for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
3137     MapGadget(level_editor_gadget[i]);
3138
3139   /* map buttons to select elements */
3140   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
3141     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
3142   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
3143   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
3144   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
3145
3146   /* map buttons to select level */
3147   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
3148   ModifyEditorCounterLimits(counter_id,
3149                             leveldir_current->first_level,
3150                             leveldir_current->last_level);
3151   MapCounterButtons(counter_id);
3152 }
3153
3154 static void MapDrawingArea(int id)
3155 {
3156   MapGadget(level_editor_gadget[id]);
3157 }
3158
3159 static void MapTextInputGadget(int id)
3160 {
3161   char infotext[MAX_OUTPUT_LINESIZE + 1];
3162   int max_infotext_len = getMaxInfoTextLength();
3163   int xoffset_above = 0;
3164   int yoffset_above = -(MINI_TILEX + ED_GADGET_DISTANCE);
3165   int x = textinput_info[id].x + xoffset_above;
3166   int y = textinput_info[id].y + yoffset_above;
3167
3168   sprintf(infotext, "%s:", textinput_info[id].infotext);
3169   infotext[max_infotext_len] = '\0';
3170   DrawTextF(x, y, FONT_TEXT_1, infotext);
3171
3172   ModifyGadget(level_editor_gadget[textinput_info[id].gadget_id],
3173                GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
3174
3175   MapGadget(level_editor_gadget[textinput_info[id].gadget_id]);
3176 }
3177
3178 static void MapSelectboxGadget(int id)
3179 {
3180   int xoffset_left = 0;
3181   int yoffset_left = ED_BORDER_SIZE;
3182   int xoffset_right = ED_BORDER_SIZE;
3183   int yoffset_right = ED_BORDER_SIZE;
3184   int x = selectbox_info[id].x + xoffset_left;
3185   int y = selectbox_info[id].y + yoffset_left;
3186
3187   DrawTextF(x, y, FONT_TEXT_1, selectbox_info[id].text_left);
3188
3189   if (selectbox_info[id].text_right)
3190   {
3191     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
3192
3193     x = gi->x + gi->width + xoffset_right;
3194     y = SY + selectbox_info[id].y + yoffset_right;
3195
3196     DrawText(x, y, selectbox_info[id].text_right, FONT_TEXT_1);
3197   }
3198
3199   ModifyEditorSelectbox(id, *selectbox_info[id].value);
3200
3201   MapGadget(level_editor_gadget[selectbox_info[id].gadget_id]);
3202 }
3203
3204 static void MapTextbuttonGadget(int id)
3205 {
3206   MapGadget(level_editor_gadget[textbutton_info[id].gadget_id]);
3207 }
3208
3209 static void MapRadiobuttonGadget(int id)
3210 {
3211   int xoffset_right = ED_XOFFSET_CHECKBOX;
3212   int yoffset_right = ED_BORDER_SIZE;
3213   int x = radiobutton_info[id].x + xoffset_right;
3214   int y = radiobutton_info[id].y + yoffset_right;
3215   boolean checked =
3216     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
3217
3218   DrawTextF(x, y, FONT_TEXT_1, radiobutton_info[id].text_right);
3219   ModifyGadget(level_editor_gadget[radiobutton_info[id].gadget_id],
3220                GDI_CHECKED, checked, GDI_END);
3221
3222   MapGadget(level_editor_gadget[radiobutton_info[id].gadget_id]);
3223 }
3224
3225 static void MapCheckbuttonGadget(int id)
3226 {
3227   int xoffset_right = ED_XOFFSET_CHECKBOX;
3228   int yoffset_right = ED_BORDER_SIZE;
3229   int x = checkbutton_info[id].x + xoffset_right;
3230   int y = checkbutton_info[id].y + yoffset_right;
3231
3232   DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[id].text_right);
3233   ModifyGadget(level_editor_gadget[checkbutton_info[id].gadget_id],
3234                GDI_CHECKED, *checkbutton_info[id].value,
3235                GDI_Y, SY + checkbutton_info[id].y, GDI_END);
3236
3237   MapGadget(level_editor_gadget[checkbutton_info[id].gadget_id]);
3238 }
3239
3240 static void MapMainDrawingArea()
3241 {
3242   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
3243   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
3244   int i;
3245
3246   for (i=ED_SCROLLBUTTON_ID_AREA_FIRST; i<=ED_SCROLLBUTTON_ID_AREA_LAST; i++)
3247   {
3248     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
3249           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
3250          no_horizontal_scrollbar) ||
3251         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
3252           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
3253          no_vertical_scrollbar))
3254       continue;
3255
3256     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
3257   }
3258
3259   for (i=ED_SCROLLBAR_ID_AREA_FIRST; i<=ED_SCROLLBAR_ID_AREA_LAST; i++)
3260   {
3261     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
3262         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
3263       continue;
3264
3265     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
3266   }
3267
3268   MapDrawingArea(GADGET_ID_DRAWING_LEVEL);
3269 }
3270
3271 static void UnmapDrawingArea(int id)
3272 {
3273   UnmapGadget(level_editor_gadget[id]);
3274 }
3275
3276 void UnmapLevelEditorWindowGadgets()
3277 {
3278   int i;
3279
3280   for (i=0; i<NUM_EDITOR_GADGETS; i++)
3281     if (level_editor_gadget[i]->x < SX + SXSIZE)
3282       UnmapGadget(level_editor_gadget[i]);
3283 }
3284
3285 void UnmapLevelEditorGadgets()
3286 {
3287   int i;
3288
3289   for (i=0; i<NUM_EDITOR_GADGETS; i++)
3290     UnmapGadget(level_editor_gadget[i]);
3291 }
3292
3293 static void ResetUndoBuffer()
3294 {
3295   undo_buffer_position = -1;
3296   undo_buffer_steps = -1;
3297   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3298 }
3299
3300 static void DrawEditModeWindow()
3301 {
3302   if (edit_mode == ED_MODE_INFO)
3303     DrawLevelInfoWindow();
3304   else if (edit_mode == ED_MODE_PROPERTIES)
3305     DrawPropertiesWindow();
3306   else  /* edit_mode == ED_MODE_DRAWING */
3307     DrawDrawingWindow();
3308 }
3309
3310 static boolean LevelChanged()
3311 {
3312   boolean level_changed = FALSE;
3313   int x, y;
3314
3315   for(y=0; y<lev_fieldy; y++)
3316     for(x=0; x<lev_fieldx; x++)
3317       if (Feld[x][y] != Ur[x][y])
3318         level_changed = TRUE;
3319
3320   return level_changed;
3321 }
3322
3323 static boolean LevelContainsPlayer()
3324 {
3325   boolean player_found = FALSE;
3326   int x, y;
3327
3328   for(y=0; y<lev_fieldy; y++)
3329     for(x=0; x<lev_fieldx; x++)
3330       if (Feld[x][y] == EL_PLAYER_1 ||
3331           Feld[x][y] == EL_SP_MURPHY)
3332         player_found = TRUE;
3333
3334   return player_found;
3335 }
3336
3337 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
3338                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
3339 {
3340   int x, y;
3341
3342   for(x=0; x<lev_fieldx; x++)
3343     for(y=0; y<lev_fieldy; y++)
3344       dst[x][y] = src[x][y];
3345 }
3346
3347 static void CopyCustomElementPropertiesToEditor(int element)
3348 {
3349   int i;
3350
3351   custom_element = element_info[properties_element];
3352
3353   for (i=0; i < NUM_ELEMENT_PROPERTIES; i++)
3354     custom_element_properties[i] = HAS_PROPERTY(element, i);
3355
3356   for (i=0; i < NUM_CHANGE_EVENTS; i++)
3357     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
3358
3359   /* set walk-to-object action selectbox help value */
3360   custom_element.walk_to_action =
3361     (IS_DIGGABLE(element) ? EP_DIGGABLE :
3362      IS_COLLECTIBLE(element) ? EP_COLLECTIBLE :
3363      IS_PUSHABLE(element) ? EP_PUSHABLE :
3364      EP_DIGGABLE);
3365   custom_element_properties[EP_WALK_TO_OBJECT] =
3366     (IS_DIGGABLE(element) ||
3367      IS_COLLECTIBLE(element) ||
3368      IS_PUSHABLE(element));
3369
3370   /* set consistency selectbox help value */
3371   custom_element.consistency =
3372     (IS_INDESTRUCTIBLE(element) ? EP_INDESTRUCTIBLE :
3373      CAN_EXPLODE_BY_FIRE(element) ? EP_CAN_EXPLODE_BY_FIRE :
3374      EP_INDESTRUCTIBLE);
3375   custom_element_properties[EP_EXPLODE_RESULT] =
3376     (IS_INDESTRUCTIBLE(element) ||
3377      CAN_EXPLODE_BY_FIRE(element));
3378
3379   /* set deadliness selectbox help value */
3380   custom_element.deadliness =
3381     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
3382      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
3383      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
3384      EP_DONT_RUN_INTO);
3385   custom_element_properties[EP_DEADLY] =
3386     (DONT_TOUCH(element) ||
3387      DONT_COLLIDE_WITH(element) ||
3388      DONT_RUN_INTO(element));
3389
3390   /* set walkable layer selectbox help value */
3391   custom_element.walkable_layer =
3392     (IS_WALKABLE_OVER(element) ? EP_WALKABLE_OVER :
3393      IS_WALKABLE_INSIDE(element) ? EP_WALKABLE_INSIDE :
3394      IS_WALKABLE_UNDER(element) ? EP_WALKABLE_UNDER :
3395      EP_WALKABLE_OVER);
3396   custom_element_properties[EP_WALKABLE] =
3397     (IS_WALKABLE_OVER(element) ||
3398      IS_WALKABLE_INSIDE(element) ||
3399      IS_WALKABLE_UNDER(element));
3400
3401   /* set change by player selectbox help value */
3402   value_change_player_action =
3403     (HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
3404      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
3405      CE_PRESSED_BY_PLAYER);
3406 }
3407
3408 static void CopyCustomElementPropertiesToGame(int element)
3409 {
3410   int i;
3411
3412   element_info[properties_element] = custom_element;
3413
3414   /* set walk-to-object property from checkbox and selectbox */
3415   custom_element_properties[EP_DIGGABLE] = FALSE;
3416   custom_element_properties[EP_COLLECTIBLE] = FALSE;
3417   custom_element_properties[EP_PUSHABLE] = FALSE;
3418   custom_element_properties[custom_element.walk_to_action] =
3419     custom_element_properties[EP_WALK_TO_OBJECT];
3420
3421   /* set consistency property from checkbox and selectbox */
3422   custom_element_properties[EP_INDESTRUCTIBLE] = FALSE;
3423   custom_element_properties[EP_CAN_EXPLODE_BY_FIRE] = FALSE;
3424   custom_element_properties[custom_element.consistency] =
3425     custom_element_properties[EP_EXPLODE_RESULT];
3426
3427   /* set deadliness property from checkbox and selectbox */
3428   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
3429   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
3430   custom_element_properties[EP_DONT_TOUCH] = FALSE;
3431   custom_element_properties[custom_element.deadliness] =
3432     custom_element_properties[EP_DEADLY];
3433
3434   /* set walkable property from checkbox and selectbox */
3435   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
3436   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
3437   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
3438   custom_element_properties[custom_element.walkable_layer] =
3439     custom_element_properties[EP_WALKABLE];
3440
3441   /* set player change event from checkbox and selectbox */
3442   custom_element.change.events &= ~CE_PRESSED_BY_PLAYER;
3443   custom_element.change.events &= ~CE_TOUCHED_BY_PLAYER;
3444   custom_element.change.events |= value_change_player_action;
3445
3446   for (i=0; i < NUM_ELEMENT_PROPERTIES; i++)
3447     SET_PROPERTY(element, i, custom_element_properties[i]);
3448
3449   for (i=0; i < NUM_CHANGE_EVENTS; i++)
3450     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
3451
3452   /* copy change events also to special level editor variable */
3453   custom_element = element_info[properties_element];
3454 }
3455
3456 void DrawLevelEd()
3457 {
3458   CloseDoor(DOOR_CLOSE_ALL);
3459   OpenDoor(DOOR_OPEN_2 | DOOR_NO_DELAY);
3460
3461   if (level_editor_test_game)
3462   {
3463     CopyPlayfield(Ur, Feld);
3464     CopyPlayfield(FieldBackup, Ur);
3465
3466     level_editor_test_game = FALSE;
3467   }
3468   else
3469   {
3470     edit_mode = ED_MODE_DRAWING;
3471     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
3472
3473     ResetUndoBuffer();
3474
3475     level_xpos = -1;
3476     level_ypos = -1;
3477   }
3478
3479   /* copy default editor door content to main double buffer */
3480   BlitBitmap(graphic_info[IMG_GLOBAL_DOOR].bitmap, drawto,
3481              DOOR_GFX_PAGEX6, DOOR_GFX_PAGEY1, DXSIZE, DYSIZE, DX, DY);
3482
3483   /* draw mouse button brush elements */
3484   DrawMiniGraphicExt(drawto,
3485                      DX + ED_WIN_MB_LEFT_XPOS, DY + ED_WIN_MB_LEFT_YPOS,
3486                      el2edimg(new_element1));
3487   DrawMiniGraphicExt(drawto,
3488                      DX + ED_WIN_MB_MIDDLE_XPOS, DY + ED_WIN_MB_MIDDLE_YPOS,
3489                      el2edimg(new_element2));
3490   DrawMiniGraphicExt(drawto,
3491                      DX + ED_WIN_MB_RIGHT_XPOS, DY + ED_WIN_MB_RIGHT_YPOS,
3492                      el2edimg(new_element3));
3493
3494   /* draw bigger door */
3495   DrawSpecialEditorDoor();
3496
3497   /* draw new control window */
3498   BlitBitmap(graphic_info[IMG_GLOBAL_DOOR].bitmap, drawto,
3499              DOOR_GFX_PAGEX8, 236, EXSIZE, EYSIZE, EX, EY);
3500
3501   redraw_mask |= REDRAW_ALL;
3502
3503   ReinitializeElementListButtons();     /* only needed after setup changes */
3504
3505   UnmapTapeButtons();
3506   MapControlButtons();
3507
3508   /* copy actual editor door content to door double buffer for OpenDoor() */
3509   BlitBitmap(drawto, bitmap_db_door,
3510              DX, DY, DXSIZE, DYSIZE, DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
3511
3512   DrawEditModeWindow();
3513
3514   OpenDoor(DOOR_OPEN_1);
3515 }
3516
3517 static void AdjustDrawingAreaGadgets()
3518 {
3519   int ed_xsize = lev_fieldx + 2;
3520   int ed_ysize = lev_fieldy + 2;
3521   int max_ed_fieldx = MAX_ED_FIELDX;
3522   int max_ed_fieldy = MAX_ED_FIELDY;
3523   boolean horizontal_scrollbar_needed;
3524   boolean vertical_scrollbar_needed;
3525   int x, y, width, height;
3526   int xoffset, yoffset;
3527
3528   /* check if we need any scrollbars */
3529   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
3530   vertical_scrollbar_needed = (ed_ysize > max_ed_fieldy);
3531
3532   /* check if we have a smaller editor field because of scrollbars */
3533   if (horizontal_scrollbar_needed)
3534     max_ed_fieldy = MAX_ED_FIELDY - 1;
3535   if (vertical_scrollbar_needed)
3536     max_ed_fieldx = MAX_ED_FIELDX - 1;
3537
3538   /* check again if we now need more scrollbars because of less space */
3539   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
3540   vertical_scrollbar_needed = (ed_ysize > max_ed_fieldy);
3541
3542   /* check if editor field gets even smaller after adding new scrollbars */
3543   if (horizontal_scrollbar_needed)
3544     max_ed_fieldy = MAX_ED_FIELDY - 1;
3545   if (vertical_scrollbar_needed)
3546     max_ed_fieldx = MAX_ED_FIELDX - 1;
3547
3548   ed_fieldx = (ed_xsize < MAX_ED_FIELDX ? ed_xsize : max_ed_fieldx);
3549   ed_fieldy = (ed_ysize < MAX_ED_FIELDY ? ed_ysize : max_ed_fieldy);
3550
3551   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
3552                GDI_WIDTH, ed_fieldx * MINI_TILEX,
3553                GDI_HEIGHT, ed_fieldy * MINI_TILEY,
3554                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
3555                GDI_END);
3556
3557   xoffset = (ed_fieldx == MAX_ED_FIELDX ? ED_SCROLLBUTTON_XSIZE : 0);
3558   yoffset = (ed_fieldy == MAX_ED_FIELDY ? ED_SCROLLBUTTON_YSIZE : 0);
3559
3560   x = SX + scrollbutton_info[ED_SCROLLBUTTON_ID_AREA_RIGHT].x + xoffset;
3561   y = SX + scrollbutton_info[ED_SCROLLBUTTON_ID_AREA_DOWN].y + yoffset;
3562
3563   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT], GDI_X, x, GDI_END);
3564   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN], GDI_Y, y, GDI_END);
3565
3566   width = scrollbar_info[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width + xoffset;
3567   height = scrollbar_info[ED_SCROLLBAR_ID_AREA_VERTICAL].height + yoffset;
3568
3569   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
3570                GDI_WIDTH, width,
3571                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
3572                GDI_END);
3573   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
3574                GDI_HEIGHT, height,
3575                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
3576                GDI_END);
3577 }
3578
3579 static void AdjustLevelScrollPosition()
3580 {
3581   if (level_xpos < -1)
3582     level_xpos = -1;
3583   if (level_xpos > lev_fieldx - ed_fieldx + 1)
3584     level_xpos = lev_fieldx - ed_fieldx + 1;
3585   if (lev_fieldx < ed_fieldx - 2)
3586     level_xpos = -1;
3587
3588   if (level_ypos < -1)
3589     level_ypos = -1;
3590   if (level_ypos > lev_fieldy - ed_fieldy + 1)
3591     level_ypos = lev_fieldy - ed_fieldy + 1;
3592   if (lev_fieldy < ed_fieldy - 2)
3593     level_ypos = -1;
3594 }
3595
3596 static void AdjustEditorScrollbar(int id)
3597 {
3598   struct GadgetInfo *gi = level_editor_gadget[id];
3599   int items_max, items_visible, item_position;
3600
3601   if (id == GADGET_ID_SCROLL_HORIZONTAL)
3602   {
3603     items_max = MAX(lev_fieldx + 2, ed_fieldx);
3604     items_visible = ed_fieldx;
3605     item_position = level_xpos + 1;
3606   }
3607   else
3608   {
3609     items_max = MAX(lev_fieldy + 2, ed_fieldy);
3610     items_visible = ed_fieldy;
3611     item_position = level_ypos + 1;
3612   }
3613
3614   if (item_position > items_max - items_visible)
3615     item_position = items_max - items_visible;
3616
3617   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
3618                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
3619 }
3620
3621 static void ModifyEditorCounter(int counter_id, int new_value)
3622 {
3623   int *counter_value = counterbutton_info[counter_id].value;
3624   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
3625   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
3626
3627   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
3628
3629   if (counter_value != NULL)
3630     *counter_value = gi->text.number_value;
3631 }
3632
3633 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
3634 {
3635   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
3636   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
3637
3638   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
3639 }
3640
3641 static void ModifyEditorSelectbox(int selectbox_id, int new_value)
3642 {
3643   int gadget_id = selectbox_info[selectbox_id].gadget_id;
3644   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
3645   int new_index_value = 0;
3646   int i;
3647
3648   for(i=0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
3649     if (selectbox_info[selectbox_id].options[i].value == new_value)
3650       new_index_value = i;
3651
3652   *selectbox_info[selectbox_id].value =
3653     selectbox_info[selectbox_id].options[new_index_value].value;
3654
3655   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
3656 }
3657
3658 static void ModifyEditorElementList()
3659 {
3660   int i;
3661
3662   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
3663   {
3664     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
3665     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
3666     struct GadgetDesign *gd = &gi->deco.design;
3667     int element = editor_elements[element_shift + i];
3668
3669     UnmapGadget(gi);
3670     getMiniGraphicSource(el2edimg(element), &gd->bitmap, &gd->x, &gd->y);
3671     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
3672     MapGadget(gi);
3673   }
3674 }
3675
3676 static void PickDrawingElement(int button, int element)
3677 {
3678   if (button < 1 || button > 3)
3679     return;
3680
3681   if (button == 1)
3682   {
3683     new_element1 = element;
3684     DrawMiniGraphicExt(drawto,
3685                        DX + ED_WIN_MB_LEFT_XPOS, DY + ED_WIN_MB_LEFT_YPOS,
3686                        el2edimg(new_element1));
3687   }
3688   else if (button == 2)
3689   {
3690     new_element2 = element;
3691     DrawMiniGraphicExt(drawto,
3692                        DX + ED_WIN_MB_MIDDLE_XPOS, DY + ED_WIN_MB_MIDDLE_YPOS,
3693                        el2edimg(new_element2));
3694   }
3695   else
3696   {
3697     new_element3 = element;
3698     DrawMiniGraphicExt(drawto,
3699                        DX + ED_WIN_MB_RIGHT_XPOS, DY + ED_WIN_MB_RIGHT_YPOS,
3700                        el2edimg(new_element3));
3701   }
3702
3703   redraw_mask |= REDRAW_DOOR_1;
3704 }
3705
3706 static void RedrawDrawingElements()
3707 {
3708   PickDrawingElement(1, new_element1);
3709   PickDrawingElement(2, new_element2);
3710   PickDrawingElement(3, new_element3);
3711 }
3712
3713 static void DrawDrawingWindow()
3714 {
3715   stick_element_properties_window = FALSE;
3716
3717   SetMainBackgroundImage(IMG_UNDEFINED);
3718   ClearWindow();
3719   UnmapLevelEditorWindowGadgets();
3720
3721   AdjustDrawingAreaGadgets();
3722   AdjustLevelScrollPosition();
3723   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
3724   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
3725
3726   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
3727   MapMainDrawingArea();
3728 }
3729
3730 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
3731                               boolean input)
3732 {
3733   int border_graphic =
3734     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
3735   Bitmap *src_bitmap;
3736   int src_x, src_y;
3737   int num_mini_tilex = width / MINI_TILEX + 1;
3738   int num_mini_tiley = width / MINI_TILEY + 1;
3739   int x, y;
3740
3741   getMiniGraphicSource(border_graphic, &src_bitmap, &src_x, &src_y);
3742
3743   for (y=0; y < num_mini_tiley; y++)
3744     for (x=0; x < num_mini_tilex; x++)
3745       BlitBitmap(src_bitmap, drawto, src_x, src_y, MINI_TILEX, MINI_TILEY,
3746                  dest_x - MINI_TILEX / 2 + x * MINI_TILEX,
3747                  dest_y - MINI_TILEY / 2 + y * MINI_TILEY);
3748
3749   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
3750 }
3751
3752 static void DrawRandomPlacementBackgroundArea()
3753 {
3754   int area_x = ED_AREA_RANDOM_BACKGROUND_XPOS / MINI_TILEX;
3755   int area_y = ED_AREA_RANDOM_BACKGROUND_YPOS / MINI_TILEY;
3756   int area_sx = SX + ED_AREA_RANDOM_BACKGROUND_XPOS;
3757   int area_sy = SY + ED_AREA_RANDOM_BACKGROUND_YPOS;
3758
3759   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY, TRUE);
3760   DrawMiniElement(area_x, area_y, random_placement_background_element);
3761
3762   MapDrawingArea(GADGET_ID_RANDOM_BACKGROUND);
3763 }
3764
3765 static void DrawLevelInfoWindow()
3766 {
3767   int i;
3768
3769   stick_element_properties_window = FALSE;
3770
3771   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
3772   ClearWindow();
3773   UnmapLevelEditorWindowGadgets();
3774
3775   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS1_YPOS,
3776            "Level Settings", FONT_TITLE_1);
3777   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS2_YPOS,
3778            "Editor Settings", FONT_TITLE_1);
3779
3780   /* draw counter gadgets */
3781   for (i=ED_COUNTER_ID_LEVEL_FIRST; i<=ED_COUNTER_ID_LEVEL_LAST; i++)
3782     MapCounterButtons(i);
3783
3784   /* draw checkbutton gadgets */
3785   for (i=ED_CHECKBUTTON_ID_LEVEL_FIRST; i<=ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
3786     MapCheckbuttonGadget(i);
3787
3788   /* draw radiobutton gadgets */
3789   for (i=ED_RADIOBUTTON_ID_LEVEL_FIRST; i<=ED_RADIOBUTTON_ID_LEVEL_LAST; i++)
3790     MapRadiobuttonGadget(i);
3791
3792   /* draw text input gadgets */
3793   for (i=ED_TEXTINPUT_ID_LEVEL_FIRST; i<=ED_TEXTINPUT_ID_LEVEL_LAST; i++)
3794     MapTextInputGadget(i);
3795
3796   /* draw drawing area */
3797   DrawRandomPlacementBackgroundArea();
3798 }
3799
3800 static void DrawAmoebaContentArea()
3801 {
3802   int area_x = ED_AREA_ELEM_CONTENT_XPOS / MINI_TILEX;
3803   int area_y = ED_AREA_ELEM_CONTENT_YPOS / MINI_TILEY;
3804   int area_sx = SX + ED_AREA_ELEM_CONTENT_XPOS;
3805   int area_sy = SY + ED_AREA_ELEM_CONTENT_YPOS;
3806
3807   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY, TRUE);
3808   DrawMiniElement(area_x, area_y, level.amoeba_content);
3809
3810   DrawText(area_sx + TILEX, area_sy + 1, "Content of amoeba", FONT_TEXT_1);
3811
3812   MapDrawingArea(GADGET_ID_AMOEBA_CONTENT);
3813 }
3814
3815 static void DrawCustomGraphicElementArea()
3816 {
3817   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_CUSTOM_GRAPHIC];
3818   int xpos = ED_AREA_ELEM_CONTENT3_XPOS;
3819   int ypos = ED_AREA_ELEM_CONTENT3_YPOS;
3820   int area_sx = SX + xpos;
3821   int area_sy = SY + ypos;
3822
3823   if (!IS_CUSTOM_ELEMENT(properties_element))
3824   {
3825     /* this should never happen */
3826     Error(ERR_WARN, "element %d is no custom element", properties_element);
3827
3828     return;
3829   }
3830
3831   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY, TRUE);
3832   DrawMiniGraphicExt(drawto, gi->x, gi->y,
3833                      el2edimg(custom_element.gfx_element));
3834
3835   MapDrawingArea(GADGET_ID_CUSTOM_GRAPHIC);
3836 }
3837
3838 static void DrawCustomContentArea()
3839 {
3840   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_CUSTOM_CONTENT];
3841   int area_sx = SX + ED_AREA_ELEM_CONTENT4_XPOS;
3842   int area_sy = SY + ED_AREA_ELEM_CONTENT4_YPOS;
3843   int x, y;
3844
3845   if (!IS_CUSTOM_ELEMENT(properties_element))
3846   {
3847     /* this should never happen */
3848     Error(ERR_WARN, "element %d is no custom element", properties_element);
3849
3850     return;
3851   }
3852
3853   DrawElementBorder(area_sx, area_sy, 3 * MINI_TILEX, 3 * MINI_TILEY, TRUE);
3854
3855   for (y=0; y<3; y++)
3856     for (x=0; x<3; x++)
3857       DrawMiniGraphicExt(drawto, gi->x + x * MINI_TILEX,gi->y + y * MINI_TILEY,
3858                          el2edimg(custom_element.content[x][y]));
3859
3860   MapDrawingArea(GADGET_ID_CUSTOM_CONTENT);
3861 }
3862
3863 static void DrawCustomChangedArea()
3864 {
3865   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_CUSTOM_CHANGED];
3866   int xpos = ED_AREA_ELEM_CONTENT2_XPOS;
3867   int ypos = ED_AREA_ELEM_CONTENT2_YPOS;
3868   int area_sx = SX + xpos;
3869   int area_sy = SY + ypos;
3870
3871   if (!IS_CUSTOM_ELEMENT(properties_element))
3872   {
3873     /* this should never happen */
3874     Error(ERR_WARN, "element %d is no custom element", properties_element);
3875
3876     return;
3877   }
3878
3879   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY, TRUE);
3880   DrawMiniGraphicExt(drawto, gi->x, gi->y,
3881                      el2edimg(custom_element.change.successor));
3882
3883   MapDrawingArea(GADGET_ID_CUSTOM_CHANGED);
3884 }
3885
3886 static void DrawElementContentAreas()
3887 {
3888   int area_x = ED_AREA_ELEM_CONTENT_XPOS / MINI_TILEX;
3889   int area_y = ED_AREA_ELEM_CONTENT_YPOS / MINI_TILEY;
3890   int area_sx = SX + ED_AREA_ELEM_CONTENT_XPOS;
3891   int area_sy = SY + ED_AREA_ELEM_CONTENT_YPOS;
3892   int i, x, y;
3893
3894   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
3895     UnmapDrawingArea(GADGET_ID_ELEMENT_CONTENT_0 + i);
3896
3897   /* display counter to choose number of element content areas */
3898   MapCounterButtons(ED_COUNTER_ID_ELEMENT_CONTENT);
3899
3900   /* delete content areas in case of reducing number of them */
3901   DrawBackground(SX, area_sy - MINI_TILEX, SXSIZE, 12 * MINI_TILEY);
3902
3903   for (i=0; i<level.num_yamyam_contents; i++)
3904     DrawElementBorder(area_sx + 5 * (i % 4) * MINI_TILEX,
3905                       area_sy + 6 * (i / 4) * MINI_TILEY,
3906                       3 * MINI_TILEX, 3 * MINI_TILEY, TRUE);
3907
3908   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 0 * MINI_TILEY + 1,
3909            "Content", FONT_TEXT_1);
3910   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 1 * MINI_TILEY + 1,
3911            "when",    FONT_TEXT_1);
3912   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 2 * MINI_TILEY + 1,
3913            "smashed", FONT_TEXT_1);
3914
3915   for (i=0; i<level.num_yamyam_contents; i++)
3916   {
3917     for (y=0; y<3; y++)
3918       for (x=0; x<3; x++)
3919         DrawMiniElement(area_x + 5 * (i % 4) + x, area_y + 6 * (i / 4) + y,
3920                         level.yamyam_content[i][x][y]);
3921
3922     DrawTextF(area_sx - SX + 5 * (i % 4) * MINI_TILEX + MINI_TILEX + 1,
3923               area_sy - SY + 6 * (i / 4) * MINI_TILEY + 4 * MINI_TILEY - 4,
3924               FONT_TEXT_1, "%d", i + 1);
3925   }
3926
3927   for (i=0; i<level.num_yamyam_contents; i++)
3928     MapDrawingArea(GADGET_ID_ELEMENT_CONTENT_0 + i);
3929 }
3930
3931 char *getElementDescriptionFilename(int element)
3932 {
3933   char *docs_dir = options.docs_directory;
3934   char *elements_subdir = "elements";
3935   static char *filename = NULL;
3936   char basename[MAX_FILENAME_LEN];
3937
3938   if (filename != NULL)
3939     free(filename);
3940
3941   /* 1st try: look for element description file for exactly this element */
3942   sprintf(basename, "%s.txt", element_info[element].token_name);
3943   filename = getPath3(docs_dir, elements_subdir, basename);
3944   if (fileExists(filename))
3945     return filename;
3946
3947   free(filename);
3948
3949   /* 2nd try: look for element description file for this element's class */
3950   sprintf(basename, "%s.txt", element_info[element].class_name);
3951   filename = getPath3(docs_dir, elements_subdir, basename);
3952   if (fileExists(filename))
3953     return filename;
3954
3955   return NULL;
3956 }
3957
3958 static boolean PrintInfoText(char *text, int font_nr, int screen_line)
3959 {
3960   int font_height = getFontHeight(font_nr);
3961   int pad_x = ED_SETTINGS_XPOS(0);
3962   int pad_y = ED_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
3963   int sx = SX + pad_x;
3964   int sy = SY + pad_y;
3965   int max_lines_per_screen = (SYSIZE - pad_y) / font_height - 1;
3966
3967   if (screen_line >= max_lines_per_screen)
3968     return FALSE;
3969
3970   DrawText(sx, sy + screen_line * font_height, text, font_nr);
3971
3972   return TRUE;
3973 }
3974
3975 static int PrintElementDescriptionFromFile(char *filename, int screen_line)
3976 {
3977   int font_nr = FONT_TEXT_2;
3978   int font_width = getFontWidth(font_nr);
3979   int pad_x = ED_SETTINGS_XPOS(0);
3980   int max_chars_per_line = (SXSIZE - 2 * pad_x) / font_width;
3981   char line[MAX_LINE_LEN];
3982   char buffer[max_chars_per_line + 1];
3983   int buffer_len;
3984   int lines_printed = 0;
3985   FILE *file;
3986
3987   if (filename == NULL)
3988     return 0;
3989
3990   if (!(file = fopen(filename, MODE_READ)))
3991     return 0;
3992
3993   buffer[0] = '\0';
3994   buffer_len = 0;
3995
3996   while(!feof(file))
3997   {
3998     char *line_ptr, *word_ptr;
3999     boolean last_line_was_empty = TRUE;
4000
4001     /* read next line of input file */
4002     if (!fgets(line, MAX_LINE_LEN, file))
4003       break;
4004
4005     /* skip comments (lines directly beginning with '#') */
4006     if (line[0] == '#')
4007       continue;
4008
4009     /* cut trailing newline from input line */
4010     for (line_ptr = line; *line_ptr; line_ptr++)
4011     {
4012       if (*line_ptr == '\n' || *line_ptr == '\r')
4013       {
4014         *line_ptr = '\0';
4015         break;
4016       }
4017     }
4018
4019     if (strlen(line) == 0)              /* special case: force empty line */
4020       strcpy(line, "\n");
4021
4022     word_ptr = line;
4023
4024     while (*word_ptr)
4025     {
4026       boolean print_buffer = FALSE;
4027       int word_len;
4028
4029       /* skip leading whitespaces */
4030       while (*word_ptr == ' ' || *word_ptr == '\t')
4031         word_ptr++;
4032
4033       line_ptr = word_ptr;
4034       word_len = 0;
4035
4036       /* look for end of next word */
4037       while (*line_ptr != ' ' && *line_ptr != '\t' && *line_ptr != '\0')
4038       {
4039         line_ptr++;
4040         word_len++;
4041       }
4042
4043       if (word_len == 0)
4044       {
4045         continue;
4046       }
4047       else if (*word_ptr == '\n')       /* special case: force empty line */
4048       {
4049         if (buffer_len == 0)
4050           word_ptr++;
4051
4052         /* prevent printing of multiple empty lines */
4053         if (buffer_len > 0 || !last_line_was_empty)
4054           print_buffer = TRUE;
4055       }
4056       else if (word_len < max_chars_per_line - buffer_len)
4057       {
4058         /* word fits into text buffer -- add word */
4059
4060         if (buffer_len > 0)
4061           buffer[buffer_len++] = ' ';
4062
4063         strncpy(&buffer[buffer_len], word_ptr, word_len);
4064         buffer_len += word_len;
4065         buffer[buffer_len] = '\0';
4066         word_ptr += word_len;
4067       }
4068       else if (buffer_len > 0)
4069       {
4070         /* not enough space left for word in text buffer -- print buffer */
4071
4072         print_buffer = TRUE;
4073       }
4074       else
4075       {
4076         /* word does not fit at all into empty text buffer -- cut word */
4077
4078         strncpy(buffer, word_ptr, max_chars_per_line);
4079         buffer[max_chars_per_line] = '\0';
4080         word_ptr += max_chars_per_line;
4081         print_buffer = TRUE;
4082       }
4083
4084       if (print_buffer)
4085       {
4086         if (!PrintInfoText(buffer, font_nr, screen_line + lines_printed))
4087           return lines_printed;
4088
4089         last_line_was_empty = (buffer_len == 0);
4090         lines_printed++;
4091
4092         buffer[0] = '\0';
4093         buffer_len = 0;
4094         print_buffer = FALSE;
4095       }
4096     }
4097   }
4098
4099   fclose(file);
4100
4101   if (buffer_len > 0)
4102     if (PrintInfoText(buffer, font_nr, screen_line + lines_printed))
4103       lines_printed++;
4104
4105   return lines_printed;
4106 }
4107
4108 static void DrawPropertiesTabulatorGadgets()
4109 {
4110   struct GadgetInfo *gd_gi = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
4111   struct GadgetDesign *gd = &gd_gi->alt_design[GD_BUTTON_UNPRESSED];
4112   int gd_x = gd->x + gd_gi->border.width / 2;
4113   int gd_y = gd->y + gd_gi->height - 1;
4114   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
4115   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
4116 #if 1
4117   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
4118 #else
4119   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
4120 #endif
4121   int i;
4122
4123 #if 0
4124   /* draw additional "configure" tabulator for configurable elements */
4125   if (checkPropertiesConfig())
4126     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
4127 #endif
4128
4129   /* draw additional "advanced" tabulator for custom elements */
4130   if (IS_CUSTOM_ELEMENT(properties_element))
4131     id_last = ED_TEXTBUTTON_ID_PROPERTIES_ADVANCED;
4132
4133   for (i=id_first; i <= id_last; i++)
4134   {
4135     int gadget_id = textbutton_info[i].gadget_id;
4136     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
4137     boolean active = (i != edit_mode_properties);
4138
4139     /* draw background line below tabulator button */
4140     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width,1);
4141
4142     /* draw solid line below inactive tabulator buttons */
4143     if (!active && tab_color != BLACK_PIXEL)    /* black => transparent */
4144       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,1, tab_color);
4145
4146     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
4147     MapTextbuttonGadget(i);
4148   }
4149
4150   /* draw little border line below tabulator buttons */
4151   if (tab_color != BLACK_PIXEL)                 /* black => transparent */
4152     FillRectangle(drawto, gd_gi->x, gd_gi->y + gd_gi->height + 1,
4153                   3 * gd_gi->width + 2 * ED_GADGET_DISTANCE,
4154                   ED_GADGET_DISTANCE, tab_color);
4155 }
4156
4157 static void DrawPropertiesInfo()
4158 {
4159   static struct
4160   {
4161     int value;
4162     char *text;
4163   }
4164   properties[] =
4165   {
4166     /* configurable properties */
4167     { EP_INDESTRUCTIBLE,        "- undestructible"                      },
4168     { EP_SLIPPERY,              "- slippery for falling objects"        },
4169     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
4170
4171     { EP_DIGGABLE,              "- diggable"                            },
4172     { EP_COLLECTIBLE,           "- collectible"                         },
4173     { EP_PUSHABLE,              "- pushable"                            },
4174
4175     { EP_CAN_MOVE,              "- can move"                            },
4176     { EP_CAN_FALL,              "- can fall"                            },
4177     { EP_CAN_SMASH,             "- can smash other objects"             },
4178     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode (by fire/explosion)"     },
4179
4180     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
4181     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
4182     { EP_DONT_TOUCH,            "- deadly when touching"                },
4183
4184     { EP_WALKABLE_OVER,         "- player can walk over it"             },
4185     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
4186     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
4187     { EP_PASSABLE_OVER,         "- player can pass over it"             },
4188     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
4189     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
4190
4191     /* pre-defined properties */
4192     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
4193     { EP_HAS_CONTENT,           "- can contain other elements"          },
4194
4195     { -1,                       NULL                                    }
4196   };
4197   char *filename = getElementDescriptionFilename(properties_element);
4198   char *percentage_text = "In this level:";
4199   char *properties_text = "Standard properties:";
4200   float percentage;
4201   int num_elements_in_level;
4202   int num_standard_properties = 0;
4203   int font1_nr = FONT_TEXT_1;
4204   int font2_nr = FONT_TEXT_2;
4205   int font1_width = getFontWidth(font1_nr);
4206   int font2_height = getFontHeight(font2_nr);
4207   int pad_x = ED_SETTINGS_XPOS(0);
4208   int pad_y = ED_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
4209   int screen_line = 0;
4210   int i, x, y;
4211
4212   /* ----- print number of elements / percentage of this element in level */
4213
4214   num_elements_in_level = 0;
4215   for (y=0; y<lev_fieldy; y++)
4216     for (x=0; x<lev_fieldx; x++)
4217       if (Feld[x][y] == properties_element)
4218         num_elements_in_level++;
4219   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
4220
4221   DrawTextF(pad_x, pad_y + screen_line * font2_height, font1_nr,
4222             percentage_text);
4223   DrawTextF(pad_x + strlen(percentage_text) * font1_width,
4224             pad_y + screen_line++ * font2_height, font2_nr,
4225             "%d (%.2f%%)", num_elements_in_level, percentage);
4226
4227   screen_line++;
4228
4229   /* ----- print standard properties of this element */
4230
4231   DrawTextF(pad_x, pad_y + screen_line++ * font2_height, font1_nr,
4232             properties_text);
4233
4234   for (i=0; properties[i].value != -1; i++)
4235   {
4236     if (!HAS_PROPERTY(properties_element, properties[i].value))
4237       continue;
4238
4239     DrawTextF(pad_x, pad_y + screen_line++ * font2_height, font2_nr,
4240               properties[i].text);
4241     num_standard_properties++;
4242   }
4243
4244   if (num_standard_properties == 0)
4245     DrawTextF(pad_x + strlen(properties_text) * font1_width,
4246               pad_y + (screen_line - 1) * font2_height, font2_nr, "none");
4247
4248   screen_line++;
4249
4250   /* ----- print special description of this element */
4251
4252   PrintInfoText("Description:", FONT_TEXT_1, screen_line);
4253   if (PrintElementDescriptionFromFile(filename, screen_line + 1) == 0)
4254     PrintInfoText("No description available.", FONT_TEXT_1, screen_line);
4255 }
4256
4257 #define TEXT_COLLECTING         "Score for collecting"
4258 #define TEXT_SMASHING           "Score for smashing"
4259 #define TEXT_CRACKING           "Score for cracking"
4260 #define TEXT_SPEED              "Speed of amoeba growth"
4261 #define TEXT_DURATION           "Duration when activated"
4262
4263 static struct
4264 {
4265   int element;
4266   int *value;
4267   char *text;
4268 } elements_with_counter[] =
4269 {
4270   { EL_EMERALD,         &level.score[SC_EMERALD],       TEXT_COLLECTING },
4271   { EL_BD_DIAMOND,      &level.score[SC_EMERALD],       TEXT_COLLECTING },
4272   { EL_EMERALD_YELLOW,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
4273   { EL_EMERALD_RED,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
4274   { EL_EMERALD_PURPLE,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
4275   { EL_SP_INFOTRON,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
4276   { EL_DIAMOND,         &level.score[SC_DIAMOND],       TEXT_COLLECTING },
4277   { EL_CRYSTAL,         &level.score[SC_CRYSTAL],       TEXT_COLLECTING },
4278   { EL_PEARL,           &level.score[SC_PEARL],         TEXT_COLLECTING },
4279   { EL_BUG_RIGHT,       &level.score[SC_BUG],           TEXT_SMASHING   },
4280   { EL_BUG_UP,          &level.score[SC_BUG],           TEXT_SMASHING   },
4281   { EL_BUG_LEFT,        &level.score[SC_BUG],           TEXT_SMASHING   },
4282   { EL_BUG_DOWN,        &level.score[SC_BUG],           TEXT_SMASHING   },
4283   { EL_BD_BUTTERFLY_RIGHT,&level.score[SC_BUG],         TEXT_SMASHING   },
4284   { EL_BD_BUTTERFLY_UP,   &level.score[SC_BUG],         TEXT_SMASHING   },
4285   { EL_BD_BUTTERFLY_LEFT, &level.score[SC_BUG],         TEXT_SMASHING   },
4286   { EL_BD_BUTTERFLY_DOWN, &level.score[SC_BUG],         TEXT_SMASHING   },
4287   { EL_SP_ELECTRON,     &level.score[SC_BUG],           TEXT_SMASHING   },
4288   { EL_SPACESHIP_RIGHT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4289   { EL_SPACESHIP_UP,    &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4290   { EL_SPACESHIP_LEFT,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4291   { EL_SPACESHIP_DOWN,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4292   { EL_BD_FIREFLY_RIGHT,&level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4293   { EL_BD_FIREFLY_UP,   &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4294   { EL_BD_FIREFLY_LEFT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4295   { EL_BD_FIREFLY_DOWN, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4296   { EL_SP_SNIKSNAK,     &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4297   { EL_YAMYAM,          &level.score[SC_YAMYAM],        TEXT_SMASHING   },
4298   { EL_DARK_YAMYAM,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
4299   { EL_ROBOT,           &level.score[SC_ROBOT],         TEXT_SMASHING   },
4300   { EL_PACMAN_RIGHT,    &level.score[SC_PACMAN],        TEXT_SMASHING   },
4301   { EL_PACMAN_UP,       &level.score[SC_PACMAN],        TEXT_SMASHING   },
4302   { EL_PACMAN_LEFT,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
4303   { EL_PACMAN_DOWN,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
4304   { EL_NUT,             &level.score[SC_NUT],           TEXT_CRACKING   },
4305   { EL_DYNAMITE,        &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
4306   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],TEXT_COLLECTING },
4307   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],TEXT_COLLECTING },
4308   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],TEXT_COLLECTING },
4309   { EL_SHIELD_NORMAL,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
4310   { EL_SHIELD_DEADLY,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
4311   { EL_EXTRA_TIME,      &level.score[SC_TIME_BONUS],    TEXT_COLLECTING },
4312   { EL_KEY_1,           &level.score[SC_KEY],           TEXT_COLLECTING },
4313   { EL_KEY_2,           &level.score[SC_KEY],           TEXT_COLLECTING },
4314   { EL_KEY_3,           &level.score[SC_KEY],           TEXT_COLLECTING },
4315   { EL_KEY_4,           &level.score[SC_KEY],           TEXT_COLLECTING },
4316   { EL_EM_KEY_1_FILE,   &level.score[SC_KEY],           TEXT_COLLECTING },
4317   { EL_EM_KEY_2_FILE,   &level.score[SC_KEY],           TEXT_COLLECTING },
4318   { EL_EM_KEY_3_FILE,   &level.score[SC_KEY],           TEXT_COLLECTING },
4319   { EL_EM_KEY_4_FILE,   &level.score[SC_KEY],           TEXT_COLLECTING },
4320   { EL_AMOEBA_WET,      &level.amoeba_speed,            TEXT_SPEED      },
4321   { EL_AMOEBA_DRY,      &level.amoeba_speed,            TEXT_SPEED      },
4322   { EL_AMOEBA_FULL,     &level.amoeba_speed,            TEXT_SPEED      },
4323   { EL_BD_AMOEBA,       &level.amoeba_speed,            TEXT_SPEED      },
4324   { EL_MAGIC_WALL,      &level.time_magic_wall,         TEXT_DURATION   },
4325   { EL_ROBOT_WHEEL,     &level.time_wheel,              TEXT_DURATION   },
4326   { -1,                 NULL,                           NULL            }
4327 };
4328
4329 static boolean checkPropertiesConfig()
4330 {
4331   int i;
4332
4333   if (IS_GEM(properties_element) ||
4334       IS_CUSTOM_ELEMENT(properties_element) ||
4335       HAS_CONTENT(properties_element))
4336     return TRUE;
4337   else
4338     for (i=0; elements_with_counter[i].element != -1; i++)
4339       if (elements_with_counter[i].element == properties_element)
4340         return TRUE;
4341
4342   return FALSE;
4343 }
4344
4345 static void DrawPropertiesConfig()
4346 {
4347   int i;
4348
4349   if (!checkPropertiesConfig())
4350   {
4351     PrintInfoText("No configuration options available.", FONT_TEXT_1, 0);
4352
4353     return;
4354   }
4355
4356   /* check if there are elements where a score can be chosen for */
4357   for (i=0; elements_with_counter[i].element != -1; i++)
4358   {
4359     if (elements_with_counter[i].element == properties_element)
4360     {
4361       int counter_id = ED_COUNTER_ID_ELEMENT_SCORE;
4362
4363       counterbutton_info[counter_id].value = elements_with_counter[i].value;
4364       counterbutton_info[counter_id].text_right= elements_with_counter[i].text;
4365       MapCounterButtons(counter_id);
4366
4367       break;
4368     }
4369   }
4370
4371   if (HAS_CONTENT(properties_element))
4372   {
4373     /* draw stickybutton gadget */
4374     i = ED_CHECKBUTTON_ID_STICK_ELEMENT;
4375     checkbutton_info[i].y = ED_COUNTER_YPOS(4);
4376     MapCheckbuttonGadget(i);
4377
4378     if (IS_AMOEBOID(properties_element))
4379       DrawAmoebaContentArea();
4380     else
4381       DrawElementContentAreas();
4382   }
4383
4384   if (IS_GEM(properties_element))
4385     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
4386
4387   if (IS_CUSTOM_ELEMENT(properties_element))
4388   {
4389     /* draw stickybutton gadget */
4390     i = ED_CHECKBUTTON_ID_STICK_ELEMENT;
4391     checkbutton_info[i].y = ED_SETTINGS_YPOS(0);
4392     MapCheckbuttonGadget(i);
4393
4394     /* draw checkbutton gadgets */
4395     for (i =  ED_CHECKBUTTON_ID_CUSTOM_FIRST;
4396          i <= ED_CHECKBUTTON_ID_CUSTOM_LAST; i++)
4397       MapCheckbuttonGadget(i);
4398
4399     /* draw counter gadgets */
4400     for (i=ED_COUNTER_ID_CUSTOM_FIRST; i<=ED_COUNTER_ID_CUSTOM_LAST; i++)
4401       MapCounterButtons(i);
4402
4403     /* draw selectbox gadgets */
4404     for (i=ED_SELECTBOX_ID_CUSTOM_FIRST; i <= ED_SELECTBOX_ID_CUSTOM_LAST; i++)
4405       MapSelectboxGadget(i);
4406
4407     /* draw drawing area gadgets */
4408     DrawCustomContentArea();
4409   }
4410 }
4411
4412 static void DrawPropertiesAdvanced()
4413 {
4414   int i;
4415
4416   /* draw stickybutton gadget */
4417   i = ED_CHECKBUTTON_ID_STICK_ELEMENT;
4418   checkbutton_info[i].y = ED_SETTINGS_YPOS(0);
4419   MapCheckbuttonGadget(i);
4420
4421   /* draw checkbutton gadgets */
4422   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
4423        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
4424     MapCheckbuttonGadget(i);
4425
4426   /* draw counter gadgets */
4427   for (i=ED_COUNTER_ID_CHANGE_FIRST; i<=ED_COUNTER_ID_CHANGE_LAST; i++)
4428     MapCounterButtons(i);
4429
4430   /* draw selectbox gadgets */
4431   for (i=ED_SELECTBOX_ID_CHANGE_FIRST; i<=ED_SELECTBOX_ID_CHANGE_LAST; i++)
4432     MapSelectboxGadget(i);
4433
4434   /* draw textbutton gadgets */
4435   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE);
4436
4437   /* draw drawing area gadgets */
4438   DrawCustomGraphicElementArea();
4439   DrawCustomChangedArea();
4440 }
4441
4442 static void DrawElementName(int x, int y, int element)
4443 {
4444   char *element_name = getElementInfoText(element);
4445   int font_nr = FONT_TEXT_1;
4446   int font_width = getFontWidth(font_nr);
4447   int font_height = getFontHeight(font_nr);
4448   int max_text_width = SXSIZE - x - ED_SETTINGS_XPOS(0);
4449   int max_chars_per_line = max_text_width / font_width;
4450   char buffer[max_chars_per_line + 1];
4451
4452   if (strlen(element_name) <= max_chars_per_line)
4453     DrawTextF(x, y, font_nr, element_name);
4454   else
4455   {
4456     int next_pos = max_chars_per_line;
4457
4458     strncpy(buffer, element_name, max_chars_per_line);
4459     buffer[max_chars_per_line] = '\0';
4460
4461     if (element_name[max_chars_per_line] == ' ')
4462       next_pos++;
4463     else
4464     {
4465       int i;
4466
4467       for (i = max_chars_per_line - 1; i >= 0; i--)
4468         if (buffer[i] == ' ')
4469           break;
4470
4471       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
4472       {
4473         buffer[i] = '\0';
4474         next_pos = i + 1;
4475       }
4476     }
4477
4478     DrawTextF(x, y - font_height / 2, font_nr, buffer);
4479
4480     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
4481     buffer[max_chars_per_line] = '\0';
4482
4483     DrawTextF(x, y + font_height / 2, font_nr, buffer);
4484   }
4485 }
4486
4487 static void DrawPropertiesWindow()
4488 {
4489   int xstart = 2;
4490   int ystart = 4;
4491
4492   stick_element_properties_window = FALSE;
4493
4494   /* make sure that previous properties edit mode exists for this element */
4495   if (edit_mode_properties == ED_MODE_PROPERTIES_ADVANCED &&
4496       !IS_CUSTOM_ELEMENT(properties_element))
4497     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
4498
4499 #if 0
4500   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
4501       !checkPropertiesConfig())
4502     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
4503 #endif
4504
4505   if (IS_CUSTOM_ELEMENT(properties_element))
4506     CopyCustomElementPropertiesToEditor(properties_element);
4507
4508   UnmapLevelEditorWindowGadgets();
4509
4510   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
4511   ClearWindow();
4512
4513   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS1_YPOS,
4514            "Element Settings", FONT_TITLE_1);
4515
4516   DrawElementBorder(SX + xstart * MINI_TILEX,
4517                     SY + ystart * MINI_TILEY + MINI_TILEY / 2,
4518                     TILEX, TILEY, FALSE);
4519   DrawGraphicAnimationExt(drawto,
4520                           SX + xstart * MINI_TILEX,
4521                           SY + ystart * MINI_TILEY + MINI_TILEY / 2,
4522                           el2img(properties_element), -1, NO_MASKING);
4523
4524   FrameCounter = 0;     /* restart animation frame counter */
4525
4526   DrawElementName((xstart + 3) * MINI_TILEX, (ystart + 1) * MINI_TILEY,
4527                   properties_element);
4528
4529   DrawPropertiesTabulatorGadgets();
4530
4531   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
4532     DrawPropertiesInfo();
4533   else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG)
4534     DrawPropertiesConfig();
4535   else  /* edit_mode_properties == ED_MODE_PROPERTIES_ADVANCED */
4536     DrawPropertiesAdvanced();
4537 }
4538
4539 static void DrawLineElement(int sx, int sy, int element, boolean change_level)
4540 {
4541   int lx = sx + level_xpos;
4542   int ly = sy + level_ypos;
4543
4544   DrawMiniElement(sx, sy, (element < 0 ? Feld[lx][ly] : element));
4545
4546   if (change_level)
4547     Feld[lx][ly] = element;
4548 }
4549
4550 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
4551                      int element, boolean change_level)
4552 {
4553   if (from_y == to_y)                   /* horizontal line */
4554   {
4555     int x;
4556     int y = from_y;
4557
4558     if (from_x > to_x)
4559       swap_numbers(&from_x, &to_x);
4560
4561     for (x=from_x; x<=to_x; x++)
4562       DrawLineElement(x, y, element, change_level);
4563   }
4564   else if (from_x == to_x)              /* vertical line */
4565   {
4566     int x = from_x;
4567     int y;
4568
4569     if (from_y > to_y)
4570       swap_numbers(&from_y, &to_y);
4571
4572     for (y=from_y; y<=to_y; y++)
4573       DrawLineElement(x, y, element, change_level);
4574   }
4575   else                                  /* diagonal line */
4576   {
4577     int len_x = ABS(to_x - from_x);
4578     int len_y = ABS(to_y - from_y);
4579     int x, y;
4580
4581     if (len_y < len_x)                  /* a < 1 */
4582     {
4583       float a = (float)len_y / (float)len_x;
4584
4585       if (from_x > to_x)
4586         swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
4587
4588       for (x=0; x<=len_x; x++)
4589       {
4590         y = (int)(a * x + 0.5) * (to_y < from_y ? -1 : +1);
4591         DrawLineElement(from_x + x, from_y + y, element, change_level);
4592       }
4593     }
4594     else                                /* a >= 1 */
4595     {
4596       float a = (float)len_x / (float)len_y;
4597
4598       if (from_y > to_y)
4599         swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
4600
4601       for (y=0; y<=len_y; y++)
4602       {
4603         x = (int)(a * y + 0.5) * (to_x < from_x ? -1 : +1);
4604         DrawLineElement(from_x + x, from_y + y, element, change_level);
4605       }
4606     }
4607   }
4608 }
4609
4610 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
4611                     int element, boolean change_level)
4612 {
4613   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
4614   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
4615   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
4616   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
4617 }
4618
4619 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
4620                           int element, boolean change_level)
4621 {
4622   int y;
4623
4624   if (from_y > to_y)
4625     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
4626
4627   for (y=from_y; y<=to_y; y++)
4628     DrawLine(from_x, y, to_x, y, element, change_level);
4629 }
4630
4631 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
4632                        int element, boolean change_level)
4633 {
4634   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
4635   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
4636   int len_x = ABS(to_x - from_x);
4637   int len_y = ABS(to_y - from_y);
4638   int radius, x, y;
4639
4640   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
4641
4642   /* not optimal (some points get drawn twice) but simple,
4643      and fast enough for the few points we are drawing */
4644
4645   for (x=0; x<=radius; x++)
4646   {
4647     int sx, sy, lx, ly;
4648
4649     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
4650
4651     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
4652     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
4653     lx = sx + level_xpos;
4654     ly = sy + level_ypos;
4655
4656     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
4657       DrawLineElement(sx, sy, element, change_level);
4658   }
4659
4660   for (y=0; y<=radius; y++)
4661   {
4662     int sx, sy, lx, ly;
4663
4664     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
4665
4666     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
4667     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
4668     lx = sx + level_xpos;
4669     ly = sy + level_ypos;
4670
4671     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
4672       DrawLineElement(sx, sy, element, change_level);
4673   }
4674 }
4675
4676 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
4677                     int element, boolean change_level)
4678 {
4679   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
4680   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
4681
4682   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
4683 }
4684
4685 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
4686 #if DRAW_CIRCLES_BUTTON_AVAILABLE
4687 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
4688                        int element, boolean change_level)
4689 {
4690   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
4691   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
4692   int mirror_to_x2 = from_x - (to_x2 - from_x);
4693   int mirror_to_y2 = from_y - (to_y2 - from_y);
4694
4695   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
4696   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
4697   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
4698   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element,change_level);
4699 }
4700 #endif
4701
4702 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
4703 {
4704   int from_sx, from_sy;
4705   int to_sx, to_sy;
4706
4707   if (from_x > to_x)
4708     swap_numbers(&from_x, &to_x);
4709
4710   if (from_y > to_y)
4711     swap_numbers(&from_y, &to_y);
4712
4713   from_sx = SX + from_x * MINI_TILEX;
4714   from_sy = SY + from_y * MINI_TILEY;
4715   to_sx = SX + to_x * MINI_TILEX + MINI_TILEX - 1;
4716   to_sy = SY + to_y * MINI_TILEY + MINI_TILEY - 1;
4717
4718   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
4719   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
4720   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
4721   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
4722
4723   if (from_x == to_x && from_y == to_y)
4724     MarkTileDirty(from_x/2, from_y/2);
4725   else
4726     redraw_mask |= REDRAW_FIELD;
4727 }
4728
4729 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
4730                        int element, boolean change_level)
4731 {
4732   if (element == -1 || change_level)
4733     DrawBox(from_x, from_y, to_x, to_y, -1, FALSE);
4734   else
4735     DrawAreaBorder(from_x, from_y, to_x, to_y);
4736 }
4737
4738 /* values for CopyBrushExt() */
4739 #define CB_AREA_TO_BRUSH        0
4740 #define CB_BRUSH_TO_CURSOR      1
4741 #define CB_BRUSH_TO_LEVEL       2
4742 #define CB_DELETE_OLD_CURSOR    3
4743
4744 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
4745                          int button, int mode)
4746 {
4747   static short brush_buffer[MAX_ED_FIELDX][MAX_ED_FIELDY];
4748   static int brush_width, brush_height;
4749   static int last_cursor_x = -1, last_cursor_y = -1;
4750   static boolean delete_old_brush;
4751   int new_element = BUTTON_ELEMENT(button);
4752   int x, y;
4753
4754   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
4755     return;
4756
4757   if (mode == CB_AREA_TO_BRUSH)
4758   {
4759     int from_lx, from_ly;
4760
4761     if (from_x > to_x)
4762       swap_numbers(&from_x, &to_x);
4763
4764     if (from_y > to_y)
4765       swap_numbers(&from_y, &to_y);
4766
4767     brush_width = to_x - from_x + 1;
4768     brush_height = to_y - from_y + 1;
4769
4770     from_lx = from_x + level_xpos;
4771     from_ly = from_y + level_ypos;
4772
4773     for (y=0; y<brush_height; y++)
4774     {
4775       for (x=0; x<brush_width; x++)
4776       {
4777         brush_buffer[x][y] = Feld[from_lx + x][from_ly + y];
4778
4779         if (button != 1)
4780           DrawLineElement(from_x + x, from_y + y, new_element, TRUE);
4781       }
4782     }
4783
4784     if (button != 1)
4785       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
4786
4787     delete_old_brush = FALSE;
4788   }
4789   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
4790            mode == CB_BRUSH_TO_LEVEL)
4791   {
4792     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
4793     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
4794     int cursor_from_x = cursor_x - brush_width / 2;
4795     int cursor_from_y = cursor_y - brush_height / 2;
4796     int border_from_x = cursor_x, border_from_y = cursor_y;
4797     int border_to_x = cursor_x, border_to_y = cursor_y;
4798
4799     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
4800       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
4801
4802     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
4803         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
4804     {
4805       delete_old_brush = FALSE;
4806       return;
4807     }
4808
4809     for (y=0; y<brush_height; y++)
4810     {
4811       for (x=0; x<brush_width; x++)
4812       {
4813         int sx = cursor_from_x + x;
4814         int sy = cursor_from_y + y;
4815         int lx = sx + level_xpos;
4816         int ly = sy + level_ypos;
4817         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
4818         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
4819                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
4820                        brush_buffer[x][y] : new_element);
4821
4822         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
4823         {
4824           if (sx < border_from_x)
4825             border_from_x = sx;
4826           else if (sx > border_to_x)
4827             border_to_x = sx;
4828           if (sy < border_from_y)
4829             border_from_y = sy;
4830           else if (sy > border_to_y)
4831             border_to_y = sy;
4832
4833           DrawLineElement(sx, sy, element, change_level);
4834         }
4835       }
4836     }
4837
4838     if (mode != CB_DELETE_OLD_CURSOR)
4839       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
4840
4841     last_cursor_x = cursor_x;
4842     last_cursor_y = cursor_y;
4843     delete_old_brush = TRUE;
4844   }
4845 }
4846
4847 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
4848                             int button)
4849 {
4850   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
4851 }
4852
4853 static void CopyBrushToLevel(int x, int y, int button)
4854 {
4855   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
4856 }
4857
4858 static void CopyBrushToCursor(int x, int y)
4859 {
4860   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
4861 }
4862
4863 static void DeleteBrushFromCursor()
4864 {
4865   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
4866 }
4867
4868 static void FloodFill(int from_x, int from_y, int fill_element)
4869 {
4870   int i,x,y;
4871   int old_element;
4872   static int check[4][2] = { {-1,0}, {0,-1}, {1,0}, {0,1} };
4873   static int safety = 0;
4874
4875   /* check if starting field still has the desired content */
4876   if (Feld[from_x][from_y] == fill_element)
4877     return;
4878
4879   safety++;
4880
4881   if (safety > lev_fieldx*lev_fieldy)
4882     Error(ERR_EXIT, "Something went wrong in 'FloodFill()'. Please debug.");
4883
4884   old_element = Feld[from_x][from_y];
4885   Feld[from_x][from_y] = fill_element;
4886
4887   for(i=0;i<4;i++)
4888   {
4889     x = from_x + check[i][0];
4890     y = from_y + check[i][1];
4891
4892     if (IN_LEV_FIELD(x,y) && Feld[x][y] == old_element)
4893       FloodFill(x, y, fill_element);
4894   }
4895
4896   safety--;
4897 }
4898
4899 /* values for DrawLevelText() modes */
4900 #define TEXT_INIT               0
4901 #define TEXT_SETCURSOR          1
4902 #define TEXT_WRITECHAR          2
4903 #define TEXT_BACKSPACE          3
4904 #define TEXT_NEWLINE            4
4905 #define TEXT_END                5
4906 #define TEXT_QUERY_TYPING       6
4907
4908 static int DrawLevelText(int sx, int sy, char letter, int mode)
4909 {
4910   static short delete_buffer[MAX_LEV_FIELDX];
4911   static int start_sx, start_sy;
4912   static int last_sx, last_sy;
4913   static boolean typing = FALSE;
4914   int letter_element = EL_CHAR_ASCII0 + letter;
4915   int lx = 0, ly = 0;
4916
4917   /* map lower case letters to upper case and convert special characters */
4918   if (letter >= 'a' && letter <= 'z')
4919     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
4920   else if (letter == 'ä' || letter == 'Ä')
4921     letter_element = EL_CHAR_AUMLAUT;
4922   else if (letter == 'ö' || letter == 'Ö')
4923     letter_element = EL_CHAR_OUMLAUT;
4924   else if (letter == 'ü' || letter == 'Ü')
4925     letter_element = EL_CHAR_UUMLAUT;
4926   else if (letter == '^')
4927     letter_element = EL_CHAR_COPYRIGHT;
4928   else
4929     letter_element = EL_CHAR_ASCII0 + letter;
4930
4931   if (mode != TEXT_INIT)
4932   {
4933     if (!typing)
4934       return FALSE;
4935
4936     if (mode != TEXT_SETCURSOR)
4937     {
4938       sx = last_sx;
4939       sy = last_sy;
4940     }
4941
4942     lx = last_sx + level_xpos;
4943     ly = last_sy + level_ypos;
4944   }
4945
4946   switch (mode)
4947   {
4948     case TEXT_INIT:
4949       if (typing)
4950         DrawLevelText(0, 0, 0, TEXT_END);
4951
4952       typing = TRUE;
4953       start_sx = last_sx = sx;
4954       start_sy = last_sy = sy;
4955       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
4956       break;
4957
4958     case TEXT_SETCURSOR:
4959       DrawMiniElement(last_sx, last_sy, Feld[lx][ly]);
4960       DrawAreaBorder(sx, sy, sx, sy);
4961       last_sx = sx;
4962       last_sy = sy;
4963       break;
4964
4965     case TEXT_WRITECHAR:
4966       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
4967       {
4968         delete_buffer[sx - start_sx] = Feld[lx][ly];
4969         Feld[lx][ly] = letter_element;
4970
4971         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
4972           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
4973         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
4974           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
4975         else
4976           DrawLevelText(0, 0, 0, TEXT_END);
4977       }
4978       break;
4979
4980     case TEXT_BACKSPACE:
4981       if (sx > start_sx)
4982       {
4983         Feld[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
4984         DrawMiniElement(sx - 1, sy, Feld[lx - 1][ly]);
4985         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
4986       }
4987       break;
4988
4989     case TEXT_NEWLINE:
4990       if (sy + 1 < ed_fieldy - 1 && ly + 1 < lev_fieldy - 1)
4991         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
4992       else
4993         DrawLevelText(0, 0, 0, TEXT_END);
4994       break;
4995
4996     case TEXT_END:
4997       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
4998       DrawMiniElement(sx, sy, Feld[lx][ly]);
4999       typing = FALSE;
5000       break;
5001
5002     case TEXT_QUERY_TYPING:
5003       break;
5004
5005     default:
5006       break;
5007   }
5008
5009   return typing;
5010 }
5011
5012 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
5013                           int element, boolean change_level)
5014 {
5015   int lx = sx + level_xpos;
5016   int ly = sy + level_ypos;
5017
5018   if (element == -1)
5019     DrawMiniElement(sx, sy, Feld[lx][ly]);
5020   else
5021     DrawAreaBorder(sx, sy, sx, sy);
5022 }
5023
5024 static void CopyLevelToUndoBuffer(int mode)
5025 {
5026   static boolean accumulated_undo = FALSE;
5027   boolean new_undo_buffer_position = TRUE;
5028   int last_border_element;
5029   int x, y;
5030
5031   switch (mode)
5032   {
5033     case UNDO_IMMEDIATE:
5034       accumulated_undo = FALSE;
5035       break;
5036
5037     case UNDO_ACCUMULATE:
5038       if (accumulated_undo)
5039         new_undo_buffer_position = FALSE;
5040       accumulated_undo = TRUE;
5041       break;
5042
5043     default:
5044       break;
5045   }
5046
5047   if (new_undo_buffer_position)
5048   {
5049     /* new position in undo buffer ring */
5050     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
5051
5052     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
5053       undo_buffer_steps++;
5054   }
5055
5056   for(x=0; x<lev_fieldx; x++)
5057     for(y=0; y<lev_fieldy; y++)
5058       UndoBuffer[undo_buffer_position][x][y] = Feld[x][y];
5059
5060   /* check if drawing operation forces change of border style */
5061   last_border_element = BorderElement;
5062   SetBorderElement();
5063   if (BorderElement != last_border_element)
5064     DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5065 }
5066
5067 static void RandomPlacement(int new_element)
5068 {
5069   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
5070   int num_free_positions;
5071   int num_percentage;
5072   int num_elements;
5073   int x, y;
5074
5075   /* determine number of free positions for the new elements */
5076   /* (maybe this statement should be formatted a bit more readable...) */
5077   num_free_positions = 0;
5078   for (x=0; x<lev_fieldx; x++)
5079     for (y=0; y<lev_fieldy; y++)
5080       if ((free_position[x][y] =
5081            ((random_placement_background_restricted &&
5082              Feld[x][y] == random_placement_background_element) ||
5083             (!random_placement_background_restricted &&
5084              Feld[x][y] != new_element))) == TRUE)
5085         num_free_positions++;
5086
5087   /* determine number of new elements to place there */
5088   num_percentage = num_free_positions * random_placement_value / 100;
5089   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
5090                   num_percentage : random_placement_value);
5091
5092   /* if not more free positions than elements to place, fill whole level */
5093   if (num_elements >= num_free_positions)
5094   {
5095     for (x=0; x<lev_fieldx; x++)
5096       for (y=0; y<lev_fieldy; y++)
5097         Feld[x][y] = new_element;
5098
5099     DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5100     CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5101     return;
5102   }
5103
5104   while (num_elements > 0)
5105   {
5106     x = RND(lev_fieldx);
5107     y = RND(lev_fieldy);
5108
5109     /* don't place element at the same position twice */
5110     if (free_position[x][y])
5111     {
5112       free_position[x][y] = FALSE;
5113       Feld[x][y] = new_element;
5114       num_elements--;
5115     }
5116   }
5117
5118   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5119   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5120 }
5121
5122 void WrapLevel(int dx, int dy)
5123 {
5124   int wrap_dx = lev_fieldx - dx;
5125   int wrap_dy = lev_fieldy - dy;
5126   int x, y;
5127
5128   for(x=0; x<lev_fieldx; x++)
5129     for(y=0; y<lev_fieldy; y++)
5130       FieldBackup[x][y] = Feld[x][y];
5131
5132   for(x=0; x<lev_fieldx; x++)
5133     for(y=0; y<lev_fieldy; y++)
5134       Feld[x][y] =
5135         FieldBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
5136
5137   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5138   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
5139 }
5140
5141 static void HandleDrawingAreas(struct GadgetInfo *gi)
5142 {
5143   static boolean started_inside_drawing_area = FALSE;
5144   int id = gi->custom_id;
5145   boolean button_press_event;
5146   boolean button_release_event;
5147   boolean inside_drawing_area = !gi->event.off_borders;
5148   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
5149   int actual_drawing_function;
5150   int button = gi->event.button;
5151   int new_element = BUTTON_ELEMENT(button);
5152   int sx = gi->event.x, sy = gi->event.y;
5153   int min_sx = 0, min_sy = 0;
5154   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
5155   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
5156   int lx = 0, ly = 0;
5157   int min_lx = 0, min_ly = 0;
5158   int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
5159   int x, y;
5160
5161   /* handle info callback for each invocation of action callback */
5162   gi->callback_info(gi);
5163
5164   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
5165   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
5166
5167   /* make sure to stay inside drawing area boundaries */
5168   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
5169   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
5170
5171   if (draw_level)
5172   {
5173     /* get positions inside level field */
5174     lx = sx + level_xpos;
5175     ly = sy + level_ypos;
5176
5177     if (!IN_LEV_FIELD(lx, ly))
5178       inside_drawing_area = FALSE;
5179
5180     /* make sure to stay inside level field boundaries */
5181     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
5182     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
5183
5184     /* correct drawing area positions accordingly */
5185     sx = lx - level_xpos;
5186     sy = ly - level_ypos;
5187   }
5188
5189   if (button_press_event)
5190     started_inside_drawing_area = inside_drawing_area;
5191
5192   if (!started_inside_drawing_area)
5193     return;
5194
5195   if (!button && !button_release_event)
5196     return;
5197
5198   /* automatically switch to 'single item' drawing mode, if needed */
5199   actual_drawing_function =
5200     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
5201      drawing_function : GADGET_ID_SINGLE_ITEMS);
5202
5203   switch (actual_drawing_function)
5204   {
5205     case GADGET_ID_SINGLE_ITEMS:
5206       if (draw_level)
5207       {
5208         if (button_release_event)
5209         {
5210           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5211
5212           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
5213               !inside_drawing_area)
5214             DeleteBrushFromCursor();
5215         }
5216
5217         if (!button)
5218           break;
5219
5220         if (draw_with_brush)
5221         {
5222           if (!button_release_event)
5223             CopyBrushToLevel(sx, sy, button);
5224         }
5225         else if (new_element != Feld[lx][ly])
5226         {
5227           if (new_element == EL_PLAYER_1)
5228           {
5229             /* remove player at old position */
5230             for(y=0; y<lev_fieldy; y++)
5231             {
5232               for(x=0; x<lev_fieldx; x++)
5233               {
5234                 if (Feld[x][y] == EL_PLAYER_1)
5235                 {
5236                   Feld[x][y] = EL_EMPTY;
5237                   if (x - level_xpos >= 0 && x - level_xpos < ed_fieldx &&
5238                       y - level_ypos >= 0 && y - level_ypos < ed_fieldy)
5239                     DrawMiniElement(x - level_xpos, y - level_ypos,
5240                                     EL_EMPTY);
5241                 }
5242               }
5243             }
5244           }
5245
5246           Feld[lx][ly] = new_element;
5247           DrawMiniElement(sx, sy, new_element);
5248         }
5249       }
5250       else
5251       {
5252         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
5253           DrawMiniGraphicExt(drawto,
5254                              gi->x + sx * MINI_TILEX,
5255                              gi->y + sy * MINI_TILEY,
5256                              el2edimg(new_element));
5257         else
5258           DrawGraphicExt(drawto,
5259                          gi->x + sx * TILEX,
5260                          gi->y + sy * TILEY,
5261                          el2img(new_element), 0);
5262
5263         if (id == GADGET_ID_AMOEBA_CONTENT)
5264           level.amoeba_content = new_element;
5265         else if (id == GADGET_ID_CUSTOM_GRAPHIC)
5266         {
5267           new_element = GFX_ELEMENT(new_element);
5268           custom_element.gfx_element = new_element;
5269           element_info[properties_element] = custom_element;
5270
5271           ModifyEditorElementList();
5272           RedrawDrawingElements();
5273
5274           FrameCounter = 0;     /* restart animation frame counter */
5275         }
5276         else if (id == GADGET_ID_CUSTOM_CONTENT)
5277         {
5278           custom_element.content[sx][sy] = new_element;
5279           element_info[properties_element] = custom_element;
5280         }
5281         else if (id == GADGET_ID_CUSTOM_CHANGED)
5282         {
5283           custom_element.change.successor = new_element;
5284           element_info[properties_element] = custom_element;
5285         }
5286         else if (id == GADGET_ID_RANDOM_BACKGROUND)
5287           random_placement_background_element = new_element;
5288         else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
5289                  id <= GADGET_ID_ELEMENT_CONTENT_7)
5290           level.yamyam_content[id - GADGET_ID_ELEMENT_CONTENT_0][sx][sy] =
5291             new_element;
5292       }
5293       break;
5294
5295     case GADGET_ID_CONNECTED_ITEMS:
5296       {
5297         static int last_sx = -1;
5298         static int last_sy = -1;
5299
5300         if (button_release_event)
5301           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5302
5303         if (button)
5304         {
5305           if (!button_press_event)
5306             DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
5307
5308           last_sx = sx;
5309           last_sy = sy;
5310         }
5311       }
5312       break;
5313
5314     case GADGET_ID_LINE:
5315     case GADGET_ID_ARC:
5316     case GADGET_ID_RECTANGLE:
5317     case GADGET_ID_FILLED_BOX:
5318     case GADGET_ID_GRAB_BRUSH:
5319     case GADGET_ID_TEXT:
5320       {
5321         static int last_sx = -1;
5322         static int last_sy = -1;
5323         static int start_sx = -1;
5324         static int start_sy = -1;
5325         void (*draw_func)(int, int, int, int, int, boolean);
5326
5327         if (drawing_function == GADGET_ID_LINE)
5328           draw_func = DrawLine;
5329         else if (drawing_function == GADGET_ID_ARC)
5330           draw_func = DrawArc;
5331         else if (drawing_function == GADGET_ID_RECTANGLE)
5332           draw_func = DrawBox;
5333         else if (drawing_function == GADGET_ID_FILLED_BOX)
5334           draw_func = DrawFilledBox;
5335         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
5336           draw_func = SelectArea;
5337         else /* (drawing_function == GADGET_ID_TEXT) */
5338           draw_func = SetTextCursor;
5339
5340         if (button_press_event)
5341         {
5342           draw_func(sx, sy, sx, sy, new_element, FALSE);
5343           start_sx = last_sx = sx;
5344           start_sy = last_sy = sy;
5345
5346           if (drawing_function == GADGET_ID_TEXT)
5347             DrawLevelText(0, 0, 0, TEXT_END);
5348         }
5349         else if (button_release_event)
5350         {
5351           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
5352           if (drawing_function == GADGET_ID_GRAB_BRUSH)
5353           {
5354             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
5355             CopyBrushToCursor(sx, sy);
5356             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
5357                           MB_LEFTBUTTON);
5358             draw_with_brush = TRUE;
5359           }
5360           else if (drawing_function == GADGET_ID_TEXT)
5361             DrawLevelText(sx, sy, 0, TEXT_INIT);
5362           else
5363             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5364         }
5365         else if (last_sx != sx || last_sy != sy)
5366         {
5367           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
5368           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
5369           last_sx = sx;
5370           last_sy = sy;
5371         }
5372       }
5373       break;
5374
5375     case GADGET_ID_FLOOD_FILL:
5376       if (button_press_event && Feld[lx][ly] != new_element)
5377       {
5378         FloodFill(lx, ly, new_element);
5379         DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5380         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5381       }
5382       break;
5383
5384     case GADGET_ID_PICK_ELEMENT:
5385       if (button_release_event)
5386         ClickOnGadget(level_editor_gadget[last_drawing_function],
5387                       MB_LEFTBUTTON);
5388       else if (draw_level)
5389         PickDrawingElement(button, Feld[lx][ly]);
5390       else if (id == GADGET_ID_AMOEBA_CONTENT)
5391         PickDrawingElement(button, level.amoeba_content);
5392       else if (id == GADGET_ID_CUSTOM_GRAPHIC)
5393         PickDrawingElement(button, custom_element.gfx_element);
5394       else if (id == GADGET_ID_CUSTOM_CONTENT)
5395         PickDrawingElement(button, custom_element.content[sx][sy]);
5396       else if (id == GADGET_ID_CUSTOM_CHANGED)
5397         PickDrawingElement(button, custom_element.change.successor);
5398       else if (id == GADGET_ID_RANDOM_BACKGROUND)
5399         PickDrawingElement(button, random_placement_background_element);
5400       else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
5401                id <= GADGET_ID_ELEMENT_CONTENT_7)
5402       {
5403         int i = id - GADGET_ID_ELEMENT_CONTENT_0;
5404
5405         PickDrawingElement(button, level.yamyam_content[i][sx][sy]);
5406       }
5407
5408       break;
5409
5410     default:
5411       break;
5412   }
5413 }
5414
5415 static void HandleCounterButtons(struct GadgetInfo *gi)
5416 {
5417   int gadget_id = gi->custom_id;
5418   int counter_id = gi->custom_type_id;
5419   int button = gi->event.button;
5420   int *counter_value = counterbutton_info[counter_id].value;
5421   int step = BUTTON_STEPSIZE(button) *
5422     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
5423
5424   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
5425   {
5426     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
5427     boolean released = (gi->event.type == GD_EVENT_RELEASED);
5428     boolean level_changed = LevelChanged();
5429
5430     if ((level_changed && pressed) || (!level_changed && released))
5431       return;
5432
5433     if (level_changed && !Request("Level has changed! Discard changes ?",
5434                                   REQ_ASK))
5435     {
5436       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
5437         ModifyEditorCounter(counter_id, *counter_value);
5438       return;
5439     }
5440   }
5441
5442   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
5443     *counter_value = gi->text.number_value;
5444   else
5445     ModifyEditorCounter(counter_id, *counter_value + step);
5446
5447   switch (counter_id)
5448   {
5449     case ED_COUNTER_ID_ELEMENT_CONTENT:
5450       DrawElementContentAreas();
5451       break;
5452
5453     case ED_COUNTER_ID_LEVEL_XSIZE:
5454     case ED_COUNTER_ID_LEVEL_YSIZE:
5455       lev_fieldx = level.fieldx;
5456       lev_fieldy = level.fieldy;
5457       break;
5458
5459     case ED_COUNTER_ID_SELECT_LEVEL:
5460       LoadLevel(level_nr);
5461       TapeErase();
5462       ResetUndoBuffer();
5463       DrawEditModeWindow();
5464       break;
5465
5466     default:
5467       break;
5468   }
5469
5470   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
5471        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
5472       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
5473        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
5474     CopyCustomElementPropertiesToGame(properties_element);
5475 }
5476
5477 static void HandleTextInputGadgets(struct GadgetInfo *gi)
5478 {
5479   strcpy(textinput_info[gi->custom_type_id].value, gi->text.value);
5480 }
5481
5482 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
5483 {
5484   int type_id = gi->custom_type_id;
5485
5486   *selectbox_info[type_id].index = gi->selectbox.index;
5487   *selectbox_info[type_id].value =
5488     selectbox_info[type_id].options[gi->selectbox.index].value;
5489
5490   if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
5491        type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
5492       (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
5493        type_id <= ED_SELECTBOX_ID_CHANGE_LAST))
5494     CopyCustomElementPropertiesToGame(properties_element);
5495 }
5496
5497 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
5498 {
5499   if (gi->custom_type_id >= ED_TEXTBUTTON_ID_PROPERTIES_INFO &&
5500       gi->custom_type_id <= ED_TEXTBUTTON_ID_PROPERTIES_ADVANCED)
5501   {
5502     edit_mode_properties = gi->custom_type_id;
5503
5504     DrawPropertiesWindow();
5505   }
5506 }
5507
5508 static void HandleRadiobuttons(struct GadgetInfo *gi)
5509 {
5510   *radiobutton_info[gi->custom_type_id].value =
5511     radiobutton_info[gi->custom_type_id].checked_value;
5512 }
5513
5514 static void HandleCheckbuttons(struct GadgetInfo *gi)
5515 {
5516   int type_id = gi->custom_type_id;
5517
5518   *checkbutton_info[type_id].value ^= TRUE;
5519
5520   if ((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
5521        type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
5522       (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
5523        type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST))
5524     CopyCustomElementPropertiesToGame(properties_element);
5525
5526   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
5527   {
5528     ModifyEditorElementList();
5529     RedrawDrawingElements();
5530   }
5531 }
5532
5533 static void HandleControlButtons(struct GadgetInfo *gi)
5534 {
5535   int id = gi->custom_id;
5536   int button = gi->event.button;
5537   int step = BUTTON_STEPSIZE(button);
5538   int new_element = BUTTON_ELEMENT(button);
5539   int x, y;
5540
5541   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
5542     DrawLevelText(0, 0, 0, TEXT_END);
5543
5544   if (id < ED_NUM_CTRL1_BUTTONS && id != GADGET_ID_PROPERTIES &&
5545       id != GADGET_ID_PICK_ELEMENT && edit_mode != ED_MODE_DRAWING &&
5546       drawing_function != GADGET_ID_PICK_ELEMENT)
5547   {
5548     DrawDrawingWindow();
5549     edit_mode = ED_MODE_DRAWING;
5550   }
5551
5552   switch (id)
5553   {
5554     case GADGET_ID_SCROLL_LEFT:
5555       if (level_xpos >= 0)
5556       {
5557         if (lev_fieldx < ed_fieldx - 2)
5558           break;
5559
5560         level_xpos -= step;
5561         if (level_xpos < -1)
5562           level_xpos = -1;
5563         if (button == 1)
5564           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
5565         else
5566           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5567
5568         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
5569                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
5570       }
5571       break;
5572
5573     case GADGET_ID_SCROLL_RIGHT:
5574       if (level_xpos <= lev_fieldx - ed_fieldx)
5575       {
5576         if (lev_fieldx < ed_fieldx - 2)
5577           break;
5578
5579         level_xpos += step;
5580         if (level_xpos > lev_fieldx - ed_fieldx + 1)
5581           level_xpos = lev_fieldx - ed_fieldx + 1;
5582         if (button == 1)
5583           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
5584         else
5585           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5586
5587         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
5588                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
5589       }
5590       break;
5591
5592     case GADGET_ID_SCROLL_UP:
5593       if (level_ypos >= 0)
5594       {
5595         if (lev_fieldy < ed_fieldy - 2)
5596           break;
5597
5598         level_ypos -= step;
5599         if (level_ypos < -1)
5600           level_ypos = -1;
5601         if (button == 1)
5602           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
5603         else
5604           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5605
5606         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
5607                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
5608       }
5609       break;
5610
5611     case GADGET_ID_SCROLL_DOWN:
5612       if (level_ypos <= lev_fieldy - ed_fieldy)
5613       {
5614         if (lev_fieldy < ed_fieldy - 2)
5615           break;
5616
5617         level_ypos += step;
5618         if (level_ypos > lev_fieldy - ed_fieldy + 1)
5619           level_ypos = lev_fieldy - ed_fieldy + 1;
5620         if (button == 1)
5621           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_UP);
5622         else
5623           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5624
5625         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
5626                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
5627       }
5628       break;
5629
5630     case GADGET_ID_SCROLL_HORIZONTAL:
5631       level_xpos = gi->event.item_position - 1;
5632       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5633       break;
5634
5635     case GADGET_ID_SCROLL_VERTICAL:
5636       level_ypos = gi->event.item_position - 1;
5637       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5638       break;
5639
5640     case GADGET_ID_SCROLL_LIST_UP:
5641     case GADGET_ID_SCROLL_LIST_DOWN:
5642     case GADGET_ID_SCROLL_LIST_VERTICAL:
5643       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
5644         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
5645       else
5646       {
5647         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
5648         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
5649
5650         if (element_shift < 0)
5651           element_shift = 0;
5652         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
5653           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
5654
5655         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
5656                      GDI_SCROLLBAR_ITEM_POSITION,
5657                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
5658       }
5659
5660       ModifyEditorElementList();
5661
5662       break;
5663
5664     case GADGET_ID_WRAP_LEFT:
5665       WrapLevel(-step, 0);
5666       break;
5667
5668     case GADGET_ID_WRAP_RIGHT:
5669       WrapLevel(step, 0);
5670       break;
5671
5672     case GADGET_ID_WRAP_UP:
5673       WrapLevel(0, -step);
5674       break;
5675
5676     case GADGET_ID_WRAP_DOWN:
5677       WrapLevel(0, step);
5678       break;
5679
5680     case GADGET_ID_SINGLE_ITEMS:
5681     case GADGET_ID_CONNECTED_ITEMS:
5682     case GADGET_ID_LINE:
5683     case GADGET_ID_ARC:
5684     case GADGET_ID_TEXT:
5685     case GADGET_ID_RECTANGLE:
5686     case GADGET_ID_FILLED_BOX:
5687     case GADGET_ID_FLOOD_FILL:
5688     case GADGET_ID_GRAB_BRUSH:
5689     case GADGET_ID_PICK_ELEMENT:
5690       if (drawing_function != GADGET_ID_PICK_ELEMENT)
5691         last_drawing_function = drawing_function;
5692       drawing_function = id;
5693       draw_with_brush = FALSE;
5694       break;
5695
5696     case GADGET_ID_RANDOM_PLACEMENT:
5697       RandomPlacement(new_element);
5698       break;
5699
5700     case GADGET_ID_PROPERTIES:
5701       if (edit_mode != ED_MODE_PROPERTIES)
5702       {
5703         properties_element = new_element;
5704         DrawPropertiesWindow();
5705         edit_mode = ED_MODE_PROPERTIES;
5706       }
5707       else
5708       {
5709         DrawDrawingWindow();
5710         edit_mode = ED_MODE_DRAWING;
5711       }
5712       break;
5713
5714     case GADGET_ID_UNDO:
5715       if (undo_buffer_steps == 0)
5716       {
5717         Request("Undo buffer empty !", REQ_CONFIRM);
5718         break;
5719       }
5720
5721       if (edit_mode != ED_MODE_DRAWING)
5722       {
5723         DrawDrawingWindow();
5724         edit_mode = ED_MODE_DRAWING;
5725       }
5726
5727       undo_buffer_position =
5728         (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
5729       undo_buffer_steps--;
5730
5731       for(x=0; x<lev_fieldx; x++)
5732         for(y=0; y<lev_fieldy; y++)
5733           Feld[x][y] = UndoBuffer[undo_buffer_position][x][y];
5734       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos,level_ypos);
5735       break;
5736
5737     case GADGET_ID_INFO:
5738       if (edit_mode != ED_MODE_INFO)
5739       {
5740         DrawLevelInfoWindow();
5741         edit_mode = ED_MODE_INFO;
5742       }
5743       else
5744       {
5745         DrawDrawingWindow();
5746         edit_mode = ED_MODE_DRAWING;
5747       }
5748       break;
5749
5750     case GADGET_ID_CLEAR:
5751       if (edit_mode != ED_MODE_DRAWING)
5752       {
5753         DrawDrawingWindow();
5754         edit_mode = ED_MODE_DRAWING;
5755       }
5756
5757       for(x=0; x<MAX_LEV_FIELDX; x++)
5758         for(y=0; y<MAX_LEV_FIELDY; y++)
5759           Feld[x][y] = (button == 1 ? EL_EMPTY : new_element);
5760       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
5761
5762       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5763       break;
5764
5765     case GADGET_ID_SAVE:
5766       if (leveldir_current->readonly)
5767       {
5768         Request("This level is read only !", REQ_CONFIRM);
5769         break;
5770       }
5771
5772       if (!LevelContainsPlayer)
5773         Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
5774       else
5775       {
5776         if (Request("Save this level and kill the old ?", REQ_ASK))
5777         {
5778           CopyPlayfield(Feld, Ur);
5779
5780           SaveLevel(level_nr);
5781         }
5782       }
5783       break;
5784
5785     case GADGET_ID_TEST:
5786       if (!LevelContainsPlayer)
5787         Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
5788       else
5789       {
5790         if (LevelChanged())
5791           level.game_version = GAME_VERSION_ACTUAL;
5792
5793         CopyPlayfield(Ur, FieldBackup);
5794         CopyPlayfield(Feld, Ur);
5795
5796         UnmapLevelEditorGadgets();
5797         UndrawSpecialEditorDoor();
5798
5799         CloseDoor(DOOR_CLOSE_ALL);
5800
5801         DrawCompleteVideoDisplay();
5802
5803         if (setup.autorecord)
5804           TapeStartRecording();
5805
5806         level_editor_test_game = TRUE;
5807         game_status = GAME_MODE_PLAYING;
5808
5809         InitGame();
5810       }
5811       break;
5812
5813     case GADGET_ID_EXIT:
5814       RequestExitLevelEditor(TRUE);     /* if level has changed, ask user */
5815       break;
5816
5817     default:
5818       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
5819           id <= GADGET_ID_ELEMENTLIST_LAST)
5820       {
5821         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
5822         int new_element = editor_elements[element_position + element_shift];
5823
5824         PickDrawingElement(button, new_element);
5825
5826         if (!stick_element_properties_window &&
5827             drawing_function != GADGET_ID_PICK_ELEMENT)
5828         {
5829           properties_element = new_element;
5830           if (edit_mode == ED_MODE_PROPERTIES)
5831             DrawPropertiesWindow();
5832         }
5833
5834         if (drawing_function == GADGET_ID_PICK_ELEMENT)
5835           ClickOnGadget(level_editor_gadget[last_drawing_function],
5836                         MB_LEFTBUTTON);
5837       }
5838 #ifdef DEBUG
5839       else if (gi->event.type == GD_EVENT_PRESSED)
5840         printf("default: HandleControlButtons: GD_EVENT_PRESSED(%d)\n", id);
5841       else if (gi->event.type == GD_EVENT_RELEASED)
5842         printf("default: HandleControlButtons: GD_EVENT_RELEASED(%d)\n", id);
5843       else if (gi->event.type == GD_EVENT_MOVING)
5844         printf("default: HandleControlButtons: GD_EVENT_MOVING(%d)\n", id);
5845       else
5846         printf("default: HandleControlButtons: ? (id == %d)\n", id);
5847 #endif
5848       break;
5849   }
5850 }
5851
5852 void HandleLevelEditorKeyInput(Key key)
5853 {
5854   char letter = getCharFromKey(key);
5855   int button = MB_LEFTBUTTON;
5856
5857   if (drawing_function == GADGET_ID_TEXT &&
5858       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
5859   {
5860     if (letter)
5861       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
5862     else if (key == KSYM_Delete || key == KSYM_BackSpace)
5863       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
5864     else if (key == KSYM_Return)
5865       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
5866     else if (key == KSYM_Escape)
5867       DrawLevelText(0, 0, 0, TEXT_END);
5868   }
5869   else if (button_status == MB_RELEASED)
5870   {
5871     int i, id = GADGET_ID_NONE;
5872
5873     switch (key)
5874     {
5875       case KSYM_Left:
5876         id = GADGET_ID_SCROLL_LEFT;
5877         break;
5878       case KSYM_Right:
5879         id = GADGET_ID_SCROLL_RIGHT;
5880         break;
5881       case KSYM_Up:
5882         id = GADGET_ID_SCROLL_UP;
5883         break;
5884       case KSYM_Down:
5885         id = GADGET_ID_SCROLL_DOWN;
5886         break;
5887       case KSYM_Page_Up:
5888         id = GADGET_ID_SCROLL_LIST_UP;
5889         button = MB_RIGHTBUTTON;
5890         break;
5891       case KSYM_Page_Down:
5892         id = GADGET_ID_SCROLL_LIST_DOWN;
5893         button = MB_RIGHTBUTTON;
5894         break;
5895
5896       case KSYM_Escape:
5897         if (edit_mode == ED_MODE_DRAWING)
5898         {
5899           RequestExitLevelEditor(setup.ask_on_escape);
5900         }
5901         else
5902         {
5903           DrawDrawingWindow();
5904           edit_mode = ED_MODE_DRAWING;
5905         }
5906         break;
5907
5908       default:
5909         break;
5910     }
5911
5912     if (id != GADGET_ID_NONE)
5913       ClickOnGadget(level_editor_gadget[id], button);
5914     else if (letter == '.')
5915       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
5916     else if (key == KSYM_Return || key == setup.shortcut.toggle_pause)
5917       ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
5918     else
5919       for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
5920         if (letter && letter == control_info[i].shortcut)
5921           if (!anyTextGadgetActive())
5922             ClickOnGadget(level_editor_gadget[i], button);
5923   }
5924 }
5925
5926 void HandleLevelEditorIdle()
5927 {
5928   static unsigned long action_delay = 0;
5929   unsigned long action_delay_value = GameFrameDelay;
5930   int xpos = 1, ypos = 2;
5931
5932   if (edit_mode != ED_MODE_PROPERTIES)
5933     return;
5934
5935   if (!DelayReached(&action_delay, action_delay_value))
5936     return;
5937
5938   DrawGraphicAnimationExt(drawto,
5939                           SX + xpos * TILEX,
5940                           SY + ypos * TILEY + MINI_TILEY / 2,
5941                           el2img(properties_element), -1, NO_MASKING);
5942
5943   MarkTileDirty(xpos, ypos);
5944   MarkTileDirty(xpos, ypos + 1);
5945
5946   FrameCounter++;       /* increase animation frame counter */
5947 }
5948
5949 void ClearEditorGadgetInfoText()
5950 {
5951   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
5952 }
5953
5954 void HandleEditorGadgetInfoText(void *ptr)
5955 {
5956   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
5957   char infotext[MAX_OUTPUT_LINESIZE + 1];
5958   char shortcut[MAX_OUTPUT_LINESIZE + 1];
5959   int max_infotext_len = getMaxInfoTextLength();
5960
5961   if (game_status != GAME_MODE_EDITOR)
5962     return;
5963
5964   ClearEditorGadgetInfoText();
5965
5966   if (gi->event.type == GD_EVENT_INFO_LEAVING)
5967     return;
5968
5969   /* misuse this function to delete brush cursor, if needed */
5970   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
5971     DeleteBrushFromCursor();
5972
5973   if (gi == NULL || gi->info_text == NULL)
5974     return;
5975
5976   strncpy(infotext, gi->info_text, max_infotext_len);
5977   infotext[max_infotext_len] = '\0';
5978
5979   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
5980   {
5981     int key = control_info[gi->custom_id].shortcut;
5982
5983     if (key)
5984     {
5985       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)      /* special case 1 */
5986         sprintf(shortcut, " ('.' or '%c')", key);
5987       else if (gi->custom_id == GADGET_ID_TEST)         /* special case 2 */
5988         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
5989       else                                              /* normal case */
5990         sprintf(shortcut, " ('%s%c')",
5991                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
5992
5993       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
5994         strcat(infotext, shortcut);
5995     }
5996   }
5997
5998   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, FONT_TEXT_2);
5999 }
6000
6001 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
6002 {
6003   static int start_lx, start_ly;
6004   char *infotext;
6005   int id = gi->custom_id;
6006   int sx = gi->event.x;
6007   int sy = gi->event.y;
6008   int lx = sx + level_xpos;
6009   int ly = sy + level_ypos;
6010   int min_sx = 0, min_sy = 0;
6011   int max_sx = gi->drawing.area_xsize - 1;
6012   int max_sy = gi->drawing.area_ysize - 1;
6013
6014   ClearEditorGadgetInfoText();
6015
6016   if (gi->event.type == GD_EVENT_INFO_LEAVING)
6017     return;
6018
6019   /* make sure to stay inside drawing area boundaries */
6020   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
6021   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
6022
6023   if (id == GADGET_ID_DRAWING_LEVEL)
6024   {
6025     if (button_status)
6026     {
6027       int min_lx = 0, min_ly = 0;
6028       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
6029
6030       /* get positions inside level field */
6031       lx = sx + level_xpos;
6032       ly = sy + level_ypos;
6033
6034       /* make sure to stay inside level field boundaries */
6035       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
6036       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
6037
6038       /* correct drawing area positions accordingly */
6039       sx = lx - level_xpos;
6040       sy = ly - level_ypos;
6041     }
6042
6043     if (IN_ED_FIELD(sx,sy) && IN_LEV_FIELD(lx, ly))
6044     {
6045       if (button_status)        /* if (gi->state == GD_BUTTON_PRESSED) */
6046       {
6047         if (gi->event.type == GD_EVENT_PRESSED)
6048         {
6049           start_lx = lx;
6050           start_ly = ly;
6051         }
6052
6053         switch (drawing_function)
6054         {
6055           case GADGET_ID_SINGLE_ITEMS:
6056             infotext = "Drawing single items";
6057             break;
6058           case GADGET_ID_CONNECTED_ITEMS:
6059             infotext = "Drawing connected items";
6060             break;
6061           case GADGET_ID_LINE:
6062             infotext = "Drawing line";
6063             break;
6064           case GADGET_ID_ARC:
6065             infotext = "Drawing arc";
6066             break;
6067           case GADGET_ID_TEXT:
6068             infotext = "Setting text cursor";
6069             break;
6070           case GADGET_ID_RECTANGLE:
6071             infotext = "Drawing rectangle";
6072             break;
6073           case GADGET_ID_FILLED_BOX:
6074             infotext = "Drawing filled box";
6075             break;
6076           case GADGET_ID_FLOOD_FILL:
6077             infotext = "Flood fill";
6078             break;
6079           case GADGET_ID_GRAB_BRUSH:
6080             infotext = "Grabbing brush";
6081             break;
6082           case GADGET_ID_PICK_ELEMENT:
6083             infotext = "Picking element";
6084             break;
6085
6086           default:
6087             infotext = "Drawing position";
6088             break;
6089         }
6090
6091         if (drawing_function == GADGET_ID_PICK_ELEMENT)
6092           DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6093                     "%s: %d, %d", infotext, lx, ly);
6094         else
6095           DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6096                     "%s: %d, %d", infotext,
6097                     ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
6098       }
6099       else if (drawing_function == GADGET_ID_PICK_ELEMENT)
6100         DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6101                   "%s", getElementInfoText(Feld[lx][ly]));
6102       else
6103         DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6104                   "Level position: %d, %d", lx, ly);
6105     }
6106
6107     /* misuse this function to draw brush cursor, if needed */
6108     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
6109     {
6110       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
6111         CopyBrushToCursor(sx, sy);
6112       else
6113         DeleteBrushFromCursor();
6114     }
6115   }
6116   else if (drawing_function == GADGET_ID_PICK_ELEMENT)
6117   {
6118     if (id == GADGET_ID_AMOEBA_CONTENT)
6119       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6120                 "%s", getElementInfoText(level.amoeba_content));
6121     else if (id == GADGET_ID_CUSTOM_GRAPHIC)
6122       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6123                 "%s", getElementInfoText(custom_element.use_gfx_element));
6124     else if (id == GADGET_ID_CUSTOM_CONTENT)
6125       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6126                 "%s", getElementInfoText(custom_element.content[sx][sy]));
6127     else if (id == GADGET_ID_CUSTOM_CHANGED)
6128       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6129                 "%s", getElementInfoText(custom_element.change.successor));
6130     else if (id == GADGET_ID_RANDOM_BACKGROUND)
6131       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6132                 "%s", getElementInfoText(random_placement_background_element));
6133     else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
6134              id <= GADGET_ID_ELEMENT_CONTENT_7)
6135     {
6136       int i = id - GADGET_ID_ELEMENT_CONTENT_0;
6137
6138       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6139                 "%s", getElementInfoText(level.yamyam_content[i][sx][sy]));
6140     }
6141   }
6142   else
6143   {
6144     if (id == GADGET_ID_AMOEBA_CONTENT)
6145       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6146                 "Amoeba content");
6147     else if (id == GADGET_ID_CUSTOM_GRAPHIC)
6148       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6149                 "Custom graphic element");
6150     else if (id == GADGET_ID_CUSTOM_CONTENT)
6151       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6152                 "Custom element content position: %d, %d", sx, sy);
6153     else if (id == GADGET_ID_CUSTOM_CHANGED)
6154       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6155                 "New element after change");
6156     else if (id == GADGET_ID_RANDOM_BACKGROUND)
6157       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6158                 "Random placement background");
6159     else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
6160              id <= GADGET_ID_ELEMENT_CONTENT_7)
6161       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6162                 "Content area %d position: %d, %d",
6163                 id - GADGET_ID_ELEMENT_CONTENT_0 + 1, sx, sy);
6164   }
6165 }
6166
6167 void RequestExitLevelEditor(boolean ask_if_level_has_changed)
6168 {
6169   if (!ask_if_level_has_changed ||
6170       !LevelChanged() ||
6171       Request("Level has changed! Exit without saving ?",
6172               REQ_ASK | REQ_STAY_OPEN))
6173   {
6174     CloseDoor(DOOR_CLOSE_1);
6175     /*
6176     CloseDoor(DOOR_CLOSE_ALL);
6177     */
6178     game_status = GAME_MODE_MAIN;
6179     DrawMainMenu();
6180   }
6181   else
6182   {
6183     CloseDoor(DOOR_CLOSE_1);
6184     BlitBitmap(bitmap_db_door, bitmap_db_door,
6185                DOOR_GFX_PAGEX2, DOOR_GFX_PAGEY1, DXSIZE,DYSIZE,
6186                DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
6187     OpenDoor(DOOR_OPEN_1);
6188   }
6189 }