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