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 "init.h"
  24 #include "tape.h"
  25
  26
  27 /*
  28   -----------------------------------------------------------------------------
  29   screen and artwork graphic pixel position definitions
  30   -----------------------------------------------------------------------------
  31 */
  32
  33 /* positions in the level editor */
  34 #define ED_WIN_MB_LEFT_XPOS             6
  35 #define ED_WIN_MB_LEFT_YPOS             258
  36 #define ED_WIN_MB_MIDDLE_XPOS           42
  37 #define ED_WIN_MB_MIDDLE_YPOS           ED_WIN_MB_LEFT_YPOS
  38 #define ED_WIN_MB_RIGHT_XPOS            78
  39 #define ED_WIN_MB_RIGHT_YPOS            ED_WIN_MB_LEFT_YPOS
  40
  41 /* values for the control window */
  42 #define ED_CTRL_BUTTONS_GFX_YPOS        236
  43 #define ED_CTRL_BUTTONS_ALT_GFX_YPOS    142
  44
  45 #define ED_CTRL1_BUTTONS_HORIZ          4
  46 #define ED_CTRL1_BUTTONS_VERT           4
  47 #define ED_CTRL1_BUTTON_XSIZE           22
  48 #define ED_CTRL1_BUTTON_YSIZE           22
  49 #define ED_CTRL1_BUTTONS_XPOS           6
  50 #define ED_CTRL1_BUTTONS_YPOS           6
  51 #define ED_CTRL2_BUTTONS_HORIZ          3
  52 #define ED_CTRL2_BUTTONS_VERT           2
  53 #define ED_CTRL2_BUTTON_XSIZE           30
  54 #define ED_CTRL2_BUTTON_YSIZE           20
  55 #define ED_CTRL2_BUTTONS_XPOS           5
  56 #define ED_CTRL2_BUTTONS_YPOS           99
  57 #define ED_NUM_CTRL1_BUTTONS   (ED_CTRL1_BUTTONS_HORIZ * ED_CTRL1_BUTTONS_VERT)
  58 #define ED_NUM_CTRL2_BUTTONS   (ED_CTRL2_BUTTONS_HORIZ * ED_CTRL2_BUTTONS_VERT)
  59 #define ED_NUM_CTRL_BUTTONS    (ED_NUM_CTRL1_BUTTONS + ED_NUM_CTRL2_BUTTONS)
  60
  61 /* values for the element list */
  62 #define ED_ELEMENTLIST_XPOS             5
  63 #define ED_ELEMENTLIST_YPOS             30
  64 #define ED_ELEMENTLIST_XSIZE            20
  65 #define ED_ELEMENTLIST_YSIZE            20
  66 #define ED_ELEMENTLIST_BUTTONS_HORIZ    4
  67 #define ED_ELEMENTLIST_BUTTONS_VERT     11
  68 #define ED_NUM_ELEMENTLIST_BUTTONS      (ED_ELEMENTLIST_BUTTONS_HORIZ * \
  69                                          ED_ELEMENTLIST_BUTTONS_VERT)
  70
  71 /* standard distances */
  72 #define ED_BORDER_SIZE                  3
  73 #define ED_BORDER2_SIZE                 5
  74 #define ED_GADGET_DISTANCE              2
  75 #define ED_GADGET_TEXT_DISTANCE         (2 * ED_GADGET_DISTANCE)
  76
  77 /* values for the setting windows */
  78 #define ED_SETTINGS_XSTART              (3 * MINI_TILEX / 2)
  79 #define ED_SETTINGS_YSTART              (MINI_TILEY * 10)
  80
  81 #define ED_XOFFSET_CHECKBOX             (ED_CHECKBUTTON_XSIZE + \
  82                                          2 * ED_GADGET_DISTANCE)
  83
  84 #define ED_SETTINGS_XOFFSET             ED_XOFFSET_CHECKBOX
  85 #define ED_SETTINGS_YOFFSET             (3 * MINI_TILEY / 2)
  86
  87 #define ED_SETTINGS_XPOS(n)             (ED_SETTINGS_XSTART + \
  88                                          n * ED_SETTINGS_XOFFSET)
  89 #define ED_SETTINGS_YPOS(n)             (ED_SETTINGS_YSTART + \
  90                                          n * ED_SETTINGS_YOFFSET)
  91
  92 #define ED_SETTINGS1_YPOS               MINI_TILEY
  93 #define ED_SETTINGS2_XPOS               MINI_TILEX
  94 #define ED_SETTINGS2_YPOS               (ED_SETTINGS1_YPOS + 12 * TILEY - 2)
  95
  96 /* values for counter gadgets */
  97 #define ED_COUNT_PUSH_DELAY_RND_XPOS    (ED_SETTINGS_XPOS(1) + 16 * MINI_TILEX)
  98 #define ED_COUNT_MOVE_DELAY_RND_XPOS    ED_COUNT_PUSH_DELAY_RND_XPOS
  99 #define ED_COUNT_CHANGE_DELAY_RND_XPOS  (ED_SETTINGS_XPOS(1) + 13 * MINI_TILEX)
 100
 101 #define ED_COUNTER_YSTART               (ED_SETTINGS1_YPOS + 2 * TILEY)
 102 #define ED_COUNTER_YDISTANCE            (3 * MINI_TILEY)
 103 #define ED_COUNTER_YPOS(n)              (ED_COUNTER_YSTART + \
 104                                          n * ED_COUNTER_YDISTANCE)
 105 #define ED_COUNTER2_YPOS(n)             (ED_COUNTER_YSTART + \
 106                                          n * ED_COUNTER_YDISTANCE - 2)
 107
 108 /* values for element content drawing areas */
 109 /* amoeba content */
 110 #define ED_AREA_ELEM_CONTENT_XPOS       ( 2 * MINI_TILEX)
 111 #define ED_AREA_ELEM_CONTENT_YPOS       (22 * MINI_TILEY)
 112
 113 /* custom change target */
 114 #define ED_AREA_ELEM_CONTENT2_XPOS      (20 * MINI_TILEX)
 115 #define ED_AREA_ELEM_CONTENT2_YPOS      (ED_SETTINGS_YPOS(2) + \
 116                                          ED_GADGET_DISTANCE)
 117 /* optional custom graphic */
 118 #define ED_AREA_ELEM_CONTENT3_XPOS      (24 * MINI_TILEX)
 119 #define ED_AREA_ELEM_CONTENT3_YPOS      (ED_SETTINGS_YPOS(1) + \
 120                                          ED_GADGET_DISTANCE)
 121 /* custom element content */
 122 #define ED_AREA_ELEM_CONTENT4_XPOS      (29 * MINI_TILEX)
 123 #define ED_AREA_ELEM_CONTENT4_YPOS      (ED_SETTINGS_YPOS(12) + \
 124                                          ED_GADGET_DISTANCE - MINI_TILEY)
 125 /* custom change trigger element */
 126 #define ED_AREA_ELEM_CONTENT5_XPOS      (28 * MINI_TILEX)
 127 #define ED_AREA_ELEM_CONTENT5_YPOS      (ED_SETTINGS_YPOS(7) + \
 128                                          ED_GADGET_DISTANCE)
 129 /* extended custom change target */
 130 #define ED_AREA_ELEM_CONTENT6_XPOS      (29 * MINI_TILEX)
 131 #define ED_AREA_ELEM_CONTENT6_YPOS      (ED_SETTINGS_YPOS(10) + \
 132                                          ED_GADGET_DISTANCE - MINI_TILEY)
 133
 134 /* values for random placement background drawing area */
 135 #define ED_AREA_RANDOM_BACKGROUND_XPOS  (29 * MINI_TILEX)
 136 #define ED_AREA_RANDOM_BACKGROUND_YPOS  (31 * MINI_TILEY)
 137
 138 /* values for scrolling gadgets for drawing area */
 139 #define ED_SCROLLBUTTON_XPOS            24
 140 #define ED_SCROLLBUTTON_YPOS            0
 141 #define ED_SCROLLBAR_XPOS               24
 142 #define ED_SCROLLBAR_YPOS               64
 143
 144 #define ED_SCROLLBUTTON_XSIZE           16
 145 #define ED_SCROLLBUTTON_YSIZE           16
 146
 147 #define ED_SCROLL_UP_XPOS               (SXSIZE - ED_SCROLLBUTTON_XSIZE)
 148 #define ED_SCROLL_UP_YPOS               (0)
 149 #define ED_SCROLL_DOWN_XPOS             ED_SCROLL_UP_XPOS
 150 #define ED_SCROLL_DOWN_YPOS             (SYSIZE - 3 * ED_SCROLLBUTTON_YSIZE)
 151 #define ED_SCROLL_LEFT_XPOS             (0)
 152 #define ED_SCROLL_LEFT_YPOS             (SYSIZE - 2 * ED_SCROLLBUTTON_YSIZE)
 153 #define ED_SCROLL_RIGHT_XPOS            (SXSIZE - 2 * ED_SCROLLBUTTON_XSIZE)
 154 #define ED_SCROLL_RIGHT_YPOS            ED_SCROLL_LEFT_YPOS
 155 #define ED_SCROLL_HORIZONTAL_XPOS (ED_SCROLL_LEFT_XPOS + ED_SCROLLBUTTON_XSIZE)
 156 #define ED_SCROLL_HORIZONTAL_YPOS       ED_SCROLL_LEFT_YPOS
 157 #define ED_SCROLL_HORIZONTAL_XSIZE      (SXSIZE - 3 * ED_SCROLLBUTTON_XSIZE)
 158 #define ED_SCROLL_HORIZONTAL_YSIZE      ED_SCROLLBUTTON_YSIZE
 159 #define ED_SCROLL_VERTICAL_XPOS         ED_SCROLL_UP_XPOS
 160 #define ED_SCROLL_VERTICAL_YPOS   (ED_SCROLL_UP_YPOS + ED_SCROLLBUTTON_YSIZE)
 161 #define ED_SCROLL_VERTICAL_XSIZE        ED_SCROLLBUTTON_XSIZE
 162 #define ED_SCROLL_VERTICAL_YSIZE        (SYSIZE - 4 * ED_SCROLLBUTTON_YSIZE)
 163
 164 /* values for scrolling gadgets for element list */
 165 #define ED_SCROLLBUTTON2_XPOS           50
 166 #define ED_SCROLLBUTTON2_YPOS           0
 167 #define ED_SCROLLBAR2_XPOS              50
 168 #define ED_SCROLLBAR2_YPOS              20
 169
 170 #define ED_SCROLLBUTTON2_XSIZE          10
 171 #define ED_SCROLLBUTTON2_YSIZE          10
 172
 173 #define ED_SCROLL2_UP_XPOS              85
 174 #define ED_SCROLL2_UP_YPOS              30
 175 #define ED_SCROLL2_DOWN_XPOS            ED_SCROLL2_UP_XPOS
 176 #define ED_SCROLL2_DOWN_YPOS            (ED_SCROLL2_UP_YPOS + \
 177                                          ED_ELEMENTLIST_BUTTONS_VERT * \
 178                                          ED_ELEMENTLIST_YSIZE - \
 179                                          ED_SCROLLBUTTON2_YSIZE)
 180 #define ED_SCROLL2_VERTICAL_XPOS        ED_SCROLL2_UP_XPOS
 181 #define ED_SCROLL2_VERTICAL_YPOS        (ED_SCROLL2_UP_YPOS + \
 182                                          ED_SCROLLBUTTON2_YSIZE)
 183 #define ED_SCROLL2_VERTICAL_XSIZE       ED_SCROLLBUTTON2_XSIZE
 184 #define ED_SCROLL2_VERTICAL_YSIZE       (ED_ELEMENTLIST_BUTTONS_VERT * \
 185                                          ED_ELEMENTLIST_YSIZE - \
 186                                          2 * ED_SCROLLBUTTON2_YSIZE)
 187
 188 /* values for checkbutton gadgets */
 189 #define ED_CHECKBUTTON_XSIZE            ED_BUTTON_COUNT_XSIZE
 190 #define ED_CHECKBUTTON_YSIZE            ED_BUTTON_COUNT_YSIZE
 191 #define ED_CHECKBUTTON_UNCHECKED_XPOS   ED_BUTTON_MINUS_XPOS
 192 #define ED_CHECKBUTTON_CHECKED_XPOS     ED_BUTTON_PLUS_XPOS
 193 #define ED_CHECKBUTTON_YPOS             (ED_BUTTON_MINUS_YPOS + 22)
 194 #define ED_RADIOBUTTON_YPOS             (ED_BUTTON_MINUS_YPOS + 44)
 195 #define ED_STICKYBUTTON_YPOS            (ED_BUTTON_MINUS_YPOS + 66)
 196
 197 /* some positions in the editor control window */
 198 #define ED_BUTTON_ELEM_XPOS             6
 199 #define ED_BUTTON_ELEM_YPOS             30
 200 #define ED_BUTTON_ELEM_XSIZE            22
 201 #define ED_BUTTON_ELEM_YSIZE            22
 202
 203 /* some values for text input, selectbox and counter gadgets */
 204 #define ED_BUTTON_COUNT_YPOS            60
 205 #define ED_BUTTON_COUNT_XSIZE           20
 206 #define ED_BUTTON_COUNT_YSIZE           20
 207 #define ED_WIN_COUNT_XPOS               (2 + ED_BUTTON_COUNT_XSIZE + 2)
 208 #define ED_WIN_COUNT_YPOS               ED_BUTTON_COUNT_YPOS
 209 #define ED_WIN_COUNT_XSIZE              52
 210 #define ED_WIN_COUNT_YSIZE              ED_BUTTON_COUNT_YSIZE
 211 #define ED_WIN_COUNT2_XPOS              27
 212 #define ED_WIN_COUNT2_YPOS              3
 213 #define ED_WIN_COUNT2_XSIZE             46
 214 #define ED_WIN_COUNT2_YSIZE             ED_BUTTON_COUNT_YSIZE
 215
 216 #define ED_BUTTON_MINUS_XPOS            2
 217 #define ED_BUTTON_MINUS_YPOS            ED_BUTTON_COUNT_YPOS
 218 #define ED_BUTTON_MINUS_XSIZE           ED_BUTTON_COUNT_XSIZE
 219 #define ED_BUTTON_MINUS_YSIZE           ED_BUTTON_COUNT_YSIZE
 220 #define ED_BUTTON_PLUS_XPOS             (ED_WIN_COUNT_XPOS + \
 221                                          ED_WIN_COUNT_XSIZE + 2)
 222 #define ED_BUTTON_PLUS_YPOS             ED_BUTTON_COUNT_YPOS
 223 #define ED_BUTTON_PLUS_XSIZE            ED_BUTTON_COUNT_XSIZE
 224 #define ED_BUTTON_PLUS_YSIZE            ED_BUTTON_COUNT_YSIZE
 225
 226 #define ED_SELECTBOX_XPOS               ED_WIN_COUNT_XPOS
 227 #define ED_SELECTBOX_YPOS               (ED_WIN_COUNT_YPOS + \
 228                                          2 + ED_WIN_COUNT_YSIZE)
 229 #define ED_SELECTBOX_XSIZE              ED_WIN_COUNT_XSIZE
 230 #define ED_SELECTBOX_YSIZE              ED_WIN_COUNT_YSIZE
 231
 232 #define ED_TEXTBUTTON_XPOS              ED_WIN_COUNT_XPOS
 233 #define ED_TEXTBUTTON_YPOS              (ED_WIN_COUNT_YPOS + \
 234                                          4 * (2 + ED_WIN_COUNT_YSIZE))
 235 #define ED_TEXTBUTTON_INACTIVE_YPOS     ED_TEXTBUTTON_YPOS
 236
 237 #define ED_TEXTBUTTON_TAB_XPOS          ED_WIN_COUNT_XPOS
 238 #define ED_TEXTBUTTON_TAB_YPOS          (ED_WIN_COUNT_YPOS + \
 239                                          2 * (2 + ED_WIN_COUNT_YSIZE))
 240 #define ED_TEXTBUTTON_TAB_INACTIVE_YPOS (ED_WIN_COUNT_YPOS + \
 241                                          3 * (2 + ED_WIN_COUNT_YSIZE))
 242
 243 #define ED_TEXTBUTTON_XSIZE             ED_WIN_COUNT_XSIZE
 244 #define ED_TEXTBUTTON_YSIZE             ED_WIN_COUNT_YSIZE
 245
 246 /* values for ClearEditorGadgetInfoText() and HandleGadgetInfoText() */
 247 #define INFOTEXT_XPOS                   SX
 248 #define INFOTEXT_YPOS                   (SY + SYSIZE - MINI_TILEX + 2)
 249 #define INFOTEXT_XSIZE                  SXSIZE
 250 #define INFOTEXT_YSIZE                  MINI_TILEX
 251
 252
 253 /*
 254   -----------------------------------------------------------------------------
 255   editor gadget definitions
 256   -----------------------------------------------------------------------------
 257 */
 258
 259 /* drawing toolbox buttons */
 260 #define GADGET_ID_NONE                  -1
 261 #define GADGET_ID_TOOLBOX_FIRST         0
 262
 263 #define GADGET_ID_SINGLE_ITEMS          (GADGET_ID_TOOLBOX_FIRST + 0)
 264 #define GADGET_ID_CONNECTED_ITEMS       (GADGET_ID_TOOLBOX_FIRST + 1)
 265 #define GADGET_ID_LINE                  (GADGET_ID_TOOLBOX_FIRST + 2)
 266 #define GADGET_ID_ARC                   (GADGET_ID_TOOLBOX_FIRST + 3)
 267 #define GADGET_ID_RECTANGLE             (GADGET_ID_TOOLBOX_FIRST + 4)
 268 #define GADGET_ID_FILLED_BOX            (GADGET_ID_TOOLBOX_FIRST + 5)
 269 #define GADGET_ID_WRAP_UP               (GADGET_ID_TOOLBOX_FIRST + 6)
 270 #define GADGET_ID_TEXT                  (GADGET_ID_TOOLBOX_FIRST + 7)
 271 #define GADGET_ID_FLOOD_FILL            (GADGET_ID_TOOLBOX_FIRST + 8)
 272 #define GADGET_ID_WRAP_LEFT             (GADGET_ID_TOOLBOX_FIRST + 9)
 273 #define GADGET_ID_PROPERTIES            (GADGET_ID_TOOLBOX_FIRST + 10)
 274 #define GADGET_ID_WRAP_RIGHT            (GADGET_ID_TOOLBOX_FIRST + 11)
 275 #define GADGET_ID_RANDOM_PLACEMENT      (GADGET_ID_TOOLBOX_FIRST + 12)
 276 #define GADGET_ID_GRAB_BRUSH            (GADGET_ID_TOOLBOX_FIRST + 13)
 277 #define GADGET_ID_WRAP_DOWN             (GADGET_ID_TOOLBOX_FIRST + 14)
 278 #define GADGET_ID_PICK_ELEMENT          (GADGET_ID_TOOLBOX_FIRST + 15)
 279 #define GADGET_ID_UNDO                  (GADGET_ID_TOOLBOX_FIRST + 16)
 280 #define GADGET_ID_INFO                  (GADGET_ID_TOOLBOX_FIRST + 17)
 281 #define GADGET_ID_SAVE                  (GADGET_ID_TOOLBOX_FIRST + 18)
 282 #define GADGET_ID_CLEAR                 (GADGET_ID_TOOLBOX_FIRST + 19)
 283 #define GADGET_ID_TEST                  (GADGET_ID_TOOLBOX_FIRST + 20)
 284 #define GADGET_ID_EXIT                  (GADGET_ID_TOOLBOX_FIRST + 21)
 285
 286 /* counter button identifiers */
 287 #define GADGET_ID_COUNTER_FIRST         (GADGET_ID_TOOLBOX_FIRST + 22)
 288
 289 #define GADGET_ID_SELECT_LEVEL_DOWN     (GADGET_ID_COUNTER_FIRST + 0)
 290 #define GADGET_ID_SELECT_LEVEL_TEXT     (GADGET_ID_COUNTER_FIRST + 1)
 291 #define GADGET_ID_SELECT_LEVEL_UP       (GADGET_ID_COUNTER_FIRST + 2)
 292 #define GADGET_ID_LEVEL_XSIZE_DOWN      (GADGET_ID_COUNTER_FIRST + 3)
 293 #define GADGET_ID_LEVEL_XSIZE_TEXT      (GADGET_ID_COUNTER_FIRST + 4)
 294 #define GADGET_ID_LEVEL_XSIZE_UP        (GADGET_ID_COUNTER_FIRST + 5)
 295 #define GADGET_ID_LEVEL_YSIZE_DOWN      (GADGET_ID_COUNTER_FIRST + 6)
 296 #define GADGET_ID_LEVEL_YSIZE_TEXT      (GADGET_ID_COUNTER_FIRST + 7)
 297 #define GADGET_ID_LEVEL_YSIZE_UP        (GADGET_ID_COUNTER_FIRST + 8)
 298 #define GADGET_ID_LEVEL_RANDOM_DOWN     (GADGET_ID_COUNTER_FIRST + 9)
 299 #define GADGET_ID_LEVEL_RANDOM_TEXT     (GADGET_ID_COUNTER_FIRST + 10)
 300 #define GADGET_ID_LEVEL_RANDOM_UP       (GADGET_ID_COUNTER_FIRST + 11)
 301 #define GADGET_ID_LEVEL_GEMSLIMIT_DOWN  (GADGET_ID_COUNTER_FIRST + 12)
 302 #define GADGET_ID_LEVEL_GEMSLIMIT_TEXT  (GADGET_ID_COUNTER_FIRST + 13)
 303 #define GADGET_ID_LEVEL_GEMSLIMIT_UP    (GADGET_ID_COUNTER_FIRST + 14)
 304 #define GADGET_ID_LEVEL_TIMELIMIT_DOWN  (GADGET_ID_COUNTER_FIRST + 15)
 305 #define GADGET_ID_LEVEL_TIMELIMIT_TEXT  (GADGET_ID_COUNTER_FIRST + 16)
 306 #define GADGET_ID_LEVEL_TIMELIMIT_UP    (GADGET_ID_COUNTER_FIRST + 17)
 307 #define GADGET_ID_LEVEL_TIMESCORE_DOWN  (GADGET_ID_COUNTER_FIRST + 18)
 308 #define GADGET_ID_LEVEL_TIMESCORE_TEXT  (GADGET_ID_COUNTER_FIRST + 19)
 309 #define GADGET_ID_LEVEL_TIMESCORE_UP    (GADGET_ID_COUNTER_FIRST + 20)
 310 #define GADGET_ID_ELEMENT_SCORE_DOWN    (GADGET_ID_COUNTER_FIRST + 21)
 311 #define GADGET_ID_ELEMENT_SCORE_TEXT    (GADGET_ID_COUNTER_FIRST + 22)
 312 #define GADGET_ID_ELEMENT_SCORE_UP      (GADGET_ID_COUNTER_FIRST + 23)
 313 #define GADGET_ID_ELEMENT_CONTENT_DOWN  (GADGET_ID_COUNTER_FIRST + 24)
 314 #define GADGET_ID_ELEMENT_CONTENT_TEXT  (GADGET_ID_COUNTER_FIRST + 25)
 315 #define GADGET_ID_ELEMENT_CONTENT_UP    (GADGET_ID_COUNTER_FIRST + 26)
 316 #define GADGET_ID_CUSTOM_SCORE_DOWN     (GADGET_ID_COUNTER_FIRST + 27)
 317 #define GADGET_ID_CUSTOM_SCORE_TEXT     (GADGET_ID_COUNTER_FIRST + 28)
 318 #define GADGET_ID_CUSTOM_SCORE_UP       (GADGET_ID_COUNTER_FIRST + 29)
 319 #define GADGET_ID_CUSTOM_GEMCOUNT_DOWN  (GADGET_ID_COUNTER_FIRST + 30)
 320 #define GADGET_ID_CUSTOM_GEMCOUNT_TEXT  (GADGET_ID_COUNTER_FIRST + 31)
 321 #define GADGET_ID_CUSTOM_GEMCOUNT_UP    (GADGET_ID_COUNTER_FIRST + 32)
 322 #define GADGET_ID_PUSH_DELAY_FIX_DOWN   (GADGET_ID_COUNTER_FIRST + 33)
 323 #define GADGET_ID_PUSH_DELAY_FIX_TEXT   (GADGET_ID_COUNTER_FIRST + 34)
 324 #define GADGET_ID_PUSH_DELAY_FIX_UP     (GADGET_ID_COUNTER_FIRST + 35)
 325 #define GADGET_ID_PUSH_DELAY_RND_DOWN   (GADGET_ID_COUNTER_FIRST + 36)
 326 #define GADGET_ID_PUSH_DELAY_RND_TEXT   (GADGET_ID_COUNTER_FIRST + 37)
 327 #define GADGET_ID_PUSH_DELAY_RND_UP     (GADGET_ID_COUNTER_FIRST + 38)
 328 #define GADGET_ID_MOVE_DELAY_FIX_DOWN   (GADGET_ID_COUNTER_FIRST + 39)
 329 #define GADGET_ID_MOVE_DELAY_FIX_TEXT   (GADGET_ID_COUNTER_FIRST + 40)
 330 #define GADGET_ID_MOVE_DELAY_FIX_UP     (GADGET_ID_COUNTER_FIRST + 41)
 331 #define GADGET_ID_MOVE_DELAY_RND_DOWN   (GADGET_ID_COUNTER_FIRST + 42)
 332 #define GADGET_ID_MOVE_DELAY_RND_TEXT   (GADGET_ID_COUNTER_FIRST + 43)
 333 #define GADGET_ID_MOVE_DELAY_RND_UP     (GADGET_ID_COUNTER_FIRST + 44)
 334 #define GADGET_ID_CHANGE_DELAY_FIX_DOWN (GADGET_ID_COUNTER_FIRST + 45)
 335 #define GADGET_ID_CHANGE_DELAY_FIX_TEXT (GADGET_ID_COUNTER_FIRST + 46)
 336 #define GADGET_ID_CHANGE_DELAY_FIX_UP   (GADGET_ID_COUNTER_FIRST + 47)
 337 #define GADGET_ID_CHANGE_DELAY_RND_DOWN (GADGET_ID_COUNTER_FIRST + 48)
 338 #define GADGET_ID_CHANGE_DELAY_RND_TEXT (GADGET_ID_COUNTER_FIRST + 49)
 339 #define GADGET_ID_CHANGE_DELAY_RND_UP   (GADGET_ID_COUNTER_FIRST + 50)
 340 #define GADGET_ID_CHANGE_CONT_RND_DOWN  (GADGET_ID_COUNTER_FIRST + 51)
 341 #define GADGET_ID_CHANGE_CONT_RND_TEXT  (GADGET_ID_COUNTER_FIRST + 52)
 342 #define GADGET_ID_CHANGE_CONT_RND_UP    (GADGET_ID_COUNTER_FIRST + 53)
 343
 344 /* drawing area identifiers */
 345 #define GADGET_ID_DRAWING_AREA_FIRST    (GADGET_ID_COUNTER_FIRST + 54)
 346
 347 #define GADGET_ID_DRAWING_LEVEL         (GADGET_ID_DRAWING_AREA_FIRST + 0)
 348 #define GADGET_ID_ELEMENT_CONTENT_0     (GADGET_ID_DRAWING_AREA_FIRST + 1)
 349 #define GADGET_ID_ELEMENT_CONTENT_1     (GADGET_ID_DRAWING_AREA_FIRST + 2)
 350 #define GADGET_ID_ELEMENT_CONTENT_2     (GADGET_ID_DRAWING_AREA_FIRST + 3)
 351 #define GADGET_ID_ELEMENT_CONTENT_3     (GADGET_ID_DRAWING_AREA_FIRST + 4)
 352 #define GADGET_ID_ELEMENT_CONTENT_4     (GADGET_ID_DRAWING_AREA_FIRST + 5)
 353 #define GADGET_ID_ELEMENT_CONTENT_5     (GADGET_ID_DRAWING_AREA_FIRST + 6)
 354 #define GADGET_ID_ELEMENT_CONTENT_6     (GADGET_ID_DRAWING_AREA_FIRST + 7)
 355 #define GADGET_ID_ELEMENT_CONTENT_7     (GADGET_ID_DRAWING_AREA_FIRST + 8)
 356 #define GADGET_ID_AMOEBA_CONTENT        (GADGET_ID_DRAWING_AREA_FIRST + 9)
 357 #define GADGET_ID_CUSTOM_GRAPHIC        (GADGET_ID_DRAWING_AREA_FIRST + 10)
 358 #define GADGET_ID_CUSTOM_CONTENT        (GADGET_ID_DRAWING_AREA_FIRST + 11)
 359 #define GADGET_ID_CUSTOM_CHANGE_TARGET  (GADGET_ID_DRAWING_AREA_FIRST + 12)
 360 #define GADGET_ID_CUSTOM_CHANGE_CONTENT (GADGET_ID_DRAWING_AREA_FIRST + 13)
 361 #define GADGET_ID_CUSTOM_CHANGE_TRIGGER (GADGET_ID_DRAWING_AREA_FIRST + 14)
 362 #define GADGET_ID_RANDOM_BACKGROUND     (GADGET_ID_DRAWING_AREA_FIRST + 15)
 363
 364 /* text input identifiers */
 365 #define GADGET_ID_TEXT_INPUT_FIRST      (GADGET_ID_DRAWING_AREA_FIRST + 16)
 366
 367 #define GADGET_ID_LEVEL_NAME            (GADGET_ID_TEXT_INPUT_FIRST + 0)
 368 #define GADGET_ID_LEVEL_AUTHOR          (GADGET_ID_TEXT_INPUT_FIRST + 1)
 369
 370 /* selectbox identifiers */
 371 #define GADGET_ID_SELECTBOX_FIRST       (GADGET_ID_TEXT_INPUT_FIRST + 2)
 372
 373 #define GADGET_ID_CUSTOM_WALK_TO_ACTION (GADGET_ID_SELECTBOX_FIRST + 0)
 374 #define GADGET_ID_CUSTOM_CONSISTENCY    (GADGET_ID_SELECTBOX_FIRST + 1)
 375 #define GADGET_ID_CUSTOM_DEADLINESS     (GADGET_ID_SELECTBOX_FIRST + 2)
 376 #define GADGET_ID_CUSTOM_MOVE_PATTERN   (GADGET_ID_SELECTBOX_FIRST + 3)
 377 #define GADGET_ID_CUSTOM_MOVE_DIRECTION (GADGET_ID_SELECTBOX_FIRST + 4)
 378 #define GADGET_ID_CUSTOM_MOVE_STEPSIZE  (GADGET_ID_SELECTBOX_FIRST + 5)
 379 #define GADGET_ID_CUSTOM_SMASH_TARGETS  (GADGET_ID_SELECTBOX_FIRST + 6)
 380 #define GADGET_ID_CUSTOM_ACCESS_TYPE    (GADGET_ID_SELECTBOX_FIRST + 7)
 381 #define GADGET_ID_CUSTOM_ACCESS_LAYER   (GADGET_ID_SELECTBOX_FIRST + 8)
 382 #define GADGET_ID_CHANGE_TIME_UNITS     (GADGET_ID_SELECTBOX_FIRST + 9)
 383 #define GADGET_ID_CHANGE_PLAYER_ACTION  (GADGET_ID_SELECTBOX_FIRST + 10)
 384 #define GADGET_ID_CHANGE_COLLIDE_ACTION (GADGET_ID_SELECTBOX_FIRST + 11)
 385 #define GADGET_ID_CHANGE_OTHER_ACTION   (GADGET_ID_SELECTBOX_FIRST + 12)
 386 #define GADGET_ID_CHANGE_POWER          (GADGET_ID_SELECTBOX_FIRST + 13)
 387
 388 /* textbutton identifiers */
 389 #define GADGET_ID_TEXTBUTTON_FIRST      (GADGET_ID_SELECTBOX_FIRST + 14)
 390
 391 #define GADGET_ID_PROPERTIES_INFO       (GADGET_ID_TEXTBUTTON_FIRST + 0)
 392 #define GADGET_ID_PROPERTIES_CONFIG     (GADGET_ID_TEXTBUTTON_FIRST + 1)
 393 #define GADGET_ID_PROPERTIES_ADVANCED   (GADGET_ID_TEXTBUTTON_FIRST + 2)
 394 #define GADGET_ID_SAVE_AS_TEMPLATE      (GADGET_ID_TEXTBUTTON_FIRST + 3)
 395
 396 /* gadgets for scrolling of drawing area */
 397 #define GADGET_ID_SCROLLING_FIRST       (GADGET_ID_TEXTBUTTON_FIRST + 4)
 398
 399 #define GADGET_ID_SCROLL_UP             (GADGET_ID_SCROLLING_FIRST + 0)
 400 #define GADGET_ID_SCROLL_DOWN           (GADGET_ID_SCROLLING_FIRST + 1)
 401 #define GADGET_ID_SCROLL_LEFT           (GADGET_ID_SCROLLING_FIRST + 2)
 402 #define GADGET_ID_SCROLL_RIGHT          (GADGET_ID_SCROLLING_FIRST + 3)
 403 #define GADGET_ID_SCROLL_HORIZONTAL     (GADGET_ID_SCROLLING_FIRST + 4)
 404 #define GADGET_ID_SCROLL_VERTICAL       (GADGET_ID_SCROLLING_FIRST + 5)
 405
 406 /* gadgets for scrolling element list */
 407 #define GADGET_ID_SCROLLING_LIST_FIRST  (GADGET_ID_SCROLLING_FIRST + 6)
 408
 409 #define GADGET_ID_SCROLL_LIST_UP        (GADGET_ID_SCROLLING_LIST_FIRST + 0)
 410 #define GADGET_ID_SCROLL_LIST_DOWN      (GADGET_ID_SCROLLING_LIST_FIRST + 1)
 411 #define GADGET_ID_SCROLL_LIST_VERTICAL  (GADGET_ID_SCROLLING_LIST_FIRST + 2)
 412
 413 /* checkbuttons for level/element properties */
 414 #define GADGET_ID_CHECKBUTTON_FIRST     (GADGET_ID_SCROLLING_LIST_FIRST + 3)
 415
 416 #define GADGET_ID_RANDOM_PERCENTAGE     (GADGET_ID_CHECKBUTTON_FIRST + 0)
 417 #define GADGET_ID_RANDOM_QUANTITY       (GADGET_ID_CHECKBUTTON_FIRST + 1)
 418 #define GADGET_ID_RANDOM_RESTRICTED     (GADGET_ID_CHECKBUTTON_FIRST + 2)
 419 #define GADGET_ID_DOUBLE_SPEED          (GADGET_ID_CHECKBUTTON_FIRST + 3)
 420 #define GADGET_ID_GRAVITY               (GADGET_ID_CHECKBUTTON_FIRST + 4)
 421 #define GADGET_ID_STICK_ELEMENT         (GADGET_ID_CHECKBUTTON_FIRST + 5)
 422 #define GADGET_ID_EM_SLIPPERY_GEMS      (GADGET_ID_CHECKBUTTON_FIRST + 6)
 423 #define GADGET_ID_CUSTOM_EXPLODE_RESULT (GADGET_ID_CHECKBUTTON_FIRST + 7)
 424 #define GADGET_ID_CUSTOM_EXPLODE_FIRE   (GADGET_ID_CHECKBUTTON_FIRST + 8)
 425 #define GADGET_ID_CUSTOM_EXPLODE_SMASH  (GADGET_ID_CHECKBUTTON_FIRST + 9)
 426 #define GADGET_ID_CUSTOM_EXPLODE_IMPACT (GADGET_ID_CHECKBUTTON_FIRST + 10)
 427 #define GADGET_ID_CUSTOM_WALK_TO_OBJECT (GADGET_ID_CHECKBUTTON_FIRST + 11)
 428 #define GADGET_ID_CUSTOM_DEADLY         (GADGET_ID_CHECKBUTTON_FIRST + 12)
 429 #define GADGET_ID_CUSTOM_CAN_MOVE       (GADGET_ID_CHECKBUTTON_FIRST + 13)
 430 #define GADGET_ID_CUSTOM_CAN_FALL       (GADGET_ID_CHECKBUTTON_FIRST + 14)
 431 #define GADGET_ID_CUSTOM_CAN_SMASH      (GADGET_ID_CHECKBUTTON_FIRST + 15)
 432 #define GADGET_ID_CUSTOM_SLIPPERY       (GADGET_ID_CHECKBUTTON_FIRST + 16)
 433 #define GADGET_ID_CUSTOM_ACCESSIBLE     (GADGET_ID_CHECKBUTTON_FIRST + 17)
 434 #define GADGET_ID_CUSTOM_USE_GRAPHIC    (GADGET_ID_CHECKBUTTON_FIRST + 18)
 435 #define GADGET_ID_CUSTOM_USE_TEMPLATE   (GADGET_ID_CHECKBUTTON_FIRST + 19)
 436 #define GADGET_ID_CUSTOM_CAN_CHANGE     (GADGET_ID_CHECKBUTTON_FIRST + 20)
 437 #define GADGET_ID_CHANGE_USE_CONTENT    (GADGET_ID_CHECKBUTTON_FIRST + 21)
 438 #define GADGET_ID_CHANGE_USE_EXPLOSION  (GADGET_ID_CHECKBUTTON_FIRST + 22)
 439 #define GADGET_ID_CHANGE_ONLY_COMPLETE  (GADGET_ID_CHECKBUTTON_FIRST + 23)
 440 #define GADGET_ID_CHANGE_USE_RANDOM     (GADGET_ID_CHECKBUTTON_FIRST + 24)
 441 #define GADGET_ID_CHANGE_DELAY          (GADGET_ID_CHECKBUTTON_FIRST + 25)
 442 #define GADGET_ID_CHANGE_BY_PLAYER      (GADGET_ID_CHECKBUTTON_FIRST + 26)
 443 #define GADGET_ID_CHANGE_BY_COLLISION   (GADGET_ID_CHECKBUTTON_FIRST + 27)
 444 #define GADGET_ID_CHANGE_BY_OTHER       (GADGET_ID_CHECKBUTTON_FIRST + 28)
 445
 446 /* gadgets for buttons in element list */
 447 #define GADGET_ID_ELEMENTLIST_FIRST     (GADGET_ID_CHECKBUTTON_FIRST + 29)
 448 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 449                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 450
 451 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 452
 453 /* radio button numbers */
 454 #define RADIO_NR_NONE                   0
 455 #define RADIO_NR_DRAWING_TOOLBOX        1
 456 #define RADIO_NR_RANDOM_ELEMENTS        2
 457
 458 /* values for counter gadgets */
 459 #define ED_COUNTER_ID_SELECT_LEVEL      0
 460 #define ED_COUNTER_ID_LEVEL_XSIZE       1
 461 #define ED_COUNTER_ID_LEVEL_YSIZE       2
 462 #define ED_COUNTER_ID_LEVEL_GEMSLIMIT   3
 463 #define ED_COUNTER_ID_LEVEL_TIMELIMIT   4
 464 #define ED_COUNTER_ID_LEVEL_TIMESCORE   5
 465 #define ED_COUNTER_ID_LEVEL_RANDOM      6
 466 #define ED_COUNTER_ID_ELEMENT_SCORE     7
 467 #define ED_COUNTER_ID_ELEMENT_CONTENT   8
 468 #define ED_COUNTER_ID_CUSTOM_SCORE      9
 469 #define ED_COUNTER_ID_CUSTOM_GEMCOUNT   10
 470 #define ED_COUNTER_ID_PUSH_DELAY_FIX    11
 471 #define ED_COUNTER_ID_PUSH_DELAY_RND    12
 472 #define ED_COUNTER_ID_MOVE_DELAY_FIX    13
 473 #define ED_COUNTER_ID_MOVE_DELAY_RND    14
 474 #define ED_COUNTER_ID_CHANGE_DELAY_FIX  15
 475 #define ED_COUNTER_ID_CHANGE_DELAY_RND  16
 476 #define ED_COUNTER_ID_CHANGE_CONT_RND   17
 477
 478 #define ED_NUM_COUNTERBUTTONS           18
 479
 480 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 481 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM
 482
 483 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM_SCORE
 484 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_MOVE_DELAY_RND
 485
 486 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 487 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_CONT_RND
 488
 489 /* values for scrollbutton gadgets */
 490 #define ED_SCROLLBUTTON_ID_AREA_UP      0
 491 #define ED_SCROLLBUTTON_ID_AREA_DOWN    1
 492 #define ED_SCROLLBUTTON_ID_AREA_LEFT    2
 493 #define ED_SCROLLBUTTON_ID_AREA_RIGHT   3
 494 #define ED_SCROLLBUTTON_ID_LIST_UP      4
 495 #define ED_SCROLLBUTTON_ID_LIST_DOWN    5
 496
 497 #define ED_NUM_SCROLLBUTTONS            6
 498
 499 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 500 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 501
 502 /* values for scrollbar gadgets */
 503 #define ED_SCROLLBAR_ID_AREA_HORIZONTAL 0
 504 #define ED_SCROLLBAR_ID_AREA_VERTICAL   1
 505 #define ED_SCROLLBAR_ID_LIST_VERTICAL   2
 506
 507 #define ED_NUM_SCROLLBARS               3
 508
 509 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 510 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 511
 512 /* values for text input gadgets */
 513 #define ED_TEXTINPUT_ID_LEVEL_NAME      0
 514 #define ED_TEXTINPUT_ID_LEVEL_AUTHOR    1
 515
 516 #define ED_NUM_TEXTINPUT                2
 517
 518 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 519 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 520
 521 /* values for selectbox gadgets */
 522 #define ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION   0
 523 #define ED_SELECTBOX_ID_CUSTOM_CONSISTENCY      1
 524 #define ED_SELECTBOX_ID_CUSTOM_DEADLINESS       2
 525 #define ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN     3
 526 #define ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION   4
 527 #define ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE    5
 528 #define ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS    6
 529 #define ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE      7
 530 #define ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER     8
 531 #define ED_SELECTBOX_ID_CHANGE_TIME_UNITS       9
 532 #define ED_SELECTBOX_ID_CHANGE_PLAYER_ACTION    10
 533 #define ED_SELECTBOX_ID_CHANGE_COLLIDE_ACTION   11
 534 #define ED_SELECTBOX_ID_CHANGE_OTHER_ACTION     12
 535 #define ED_SELECTBOX_ID_CHANGE_POWER            13
 536
 537 #define ED_NUM_SELECTBOX                        14
 538
 539 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 540 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER
 541
 542 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 543 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_CHANGE_POWER
 544
 545 /* values for textbutton gadgets */
 546 #define ED_TEXTBUTTON_ID_PROPERTIES_INFO        0
 547 #define ED_TEXTBUTTON_ID_PROPERTIES_CONFIG      1
 548 #define ED_TEXTBUTTON_ID_PROPERTIES_ADVANCED    2
 549 #define ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE       3
 550
 551 #define ED_NUM_TEXTBUTTON                       4
 552
 553 /* values for checkbutton gadgets */
 554 #define ED_CHECKBUTTON_ID_DOUBLE_SPEED          0
 555 #define ED_CHECKBUTTON_ID_GRAVITY               1
 556 #define ED_CHECKBUTTON_ID_RANDOM_RESTRICTED     2
 557 #define ED_CHECKBUTTON_ID_STICK_ELEMENT         3
 558 #define ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS      4
 559 #define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_RESULT 5
 560 #define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE   6
 561 #define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH  7
 562 #define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT 8
 563 #define ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT 9
 564 #define ED_CHECKBUTTON_ID_CUSTOM_DEADLY         10
 565 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE       11
 566 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL       12
 567 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH      13
 568 #define ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY       14
 569 #define ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE     15
 570 #define ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC    16
 571 #define ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE   17
 572 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE     18
 573 #define ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT    19
 574 #define ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION  20
 575 #define ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE  21
 576 #define ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM     22
 577 #define ED_CHECKBUTTON_ID_CHANGE_DELAY          23
 578 #define ED_CHECKBUTTON_ID_CHANGE_BY_PLAYER      24
 579 #define ED_CHECKBUTTON_ID_CHANGE_BY_COLLISION   25
 580 #define ED_CHECKBUTTON_ID_CHANGE_BY_OTHER       26
 581
 582 #define ED_NUM_CHECKBUTTONS                     27
 583
 584 #define ED_CHECKBUTTON_ID_LEVEL_FIRST   ED_CHECKBUTTON_ID_DOUBLE_SPEED
 585 #define ED_CHECKBUTTON_ID_LEVEL_LAST    ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
 586
 587 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_RESULT
 588 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE
 589
 590 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
 591 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_BY_OTHER
 592
 593 /* values for radiobutton gadgets */
 594 #define ED_RADIOBUTTON_ID_PERCENTAGE    0
 595 #define ED_RADIOBUTTON_ID_QUANTITY      1
 596
 597 #define ED_NUM_RADIOBUTTONS             2
 598
 599 #define ED_RADIOBUTTON_ID_LEVEL_FIRST   ED_RADIOBUTTON_ID_PERCENTAGE
 600 #define ED_RADIOBUTTON_ID_LEVEL_LAST    ED_RADIOBUTTON_ID_QUANTITY
 601
 602
 603 /*
 604   -----------------------------------------------------------------------------
 605   some internally used definitions
 606   -----------------------------------------------------------------------------
 607 */
 608
 609 /* values for CopyLevelToUndoBuffer() */
 610 #define UNDO_IMMEDIATE                  0
 611 #define UNDO_ACCUMULATE                 1
 612
 613 /* values for scrollbars */
 614 #define ED_SCROLL_NO                    0
 615 #define ED_SCROLL_LEFT                  1
 616 #define ED_SCROLL_RIGHT                 2
 617 #define ED_SCROLL_UP                    4
 618 #define ED_SCROLL_DOWN                  8
 619
 620 /* screens in the level editor */
 621 #define ED_MODE_DRAWING                 0
 622 #define ED_MODE_INFO                    1
 623 #define ED_MODE_PROPERTIES              2
 624
 625 /* sub-screens in the element properties section */
 626 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
 627 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
 628 #define ED_MODE_PROPERTIES_ADVANCED     ED_TEXTBUTTON_ID_PROPERTIES_ADVANCED
 629
 630 /* how many steps can be cancelled */
 631 #define NUM_UNDO_STEPS                  (10 + 1)
 632
 633 /* values for elements with score */
 634 #define MIN_SCORE                       0
 635 #define MAX_SCORE                       255
 636
 637 /* values for elements with gem count */
 638 #define MIN_GEM_COUNT                   0
 639 #define MAX_GEM_COUNT                   100
 640
 641 /* values for random placement */
 642 #define RANDOM_USE_PERCENTAGE           0
 643 #define RANDOM_USE_QUANTITY             1
 644
 645 /* maximal size of level editor drawing area */
 646 #define MAX_ED_FIELDX           (2 * SCR_FIELDX)
 647 #define MAX_ED_FIELDY           (2 * SCR_FIELDY - 1)
 648
 649
 650 /*
 651   -----------------------------------------------------------------------------
 652   some internally used data structure definitions
 653   -----------------------------------------------------------------------------
 654 */
 655
 656 static struct
 657 {
 658   char shortcut;
 659   char *text;
 660 } control_info[ED_NUM_CTRL_BUTTONS] =
 661 {
 662   { 's',        "draw single items"             },
 663   { 'd',        "draw connected items"          },
 664   { 'l',        "draw lines"                    },
 665   { 'a',        "draw arcs"                     },
 666   { 'r',        "draw outline rectangles"       },
 667   { 'R',        "draw filled rectangles"        },
 668   { '\0',       "wrap (rotate) level up"        },
 669   { 't',        "enter text elements"           },
 670   { 'f',        "flood fill"                    },
 671   { '\0',       "wrap (rotate) level left"      },
 672   { '?',        "properties of drawing element" },
 673   { '\0',       "wrap (rotate) level right"     },
 674   { '\0',       "random element placement"      },
 675   { 'b',        "grab brush"                    },
 676   { '\0',       "wrap (rotate) level down"      },
 677   { ',',        "pick drawing element"          },
 678   { 'U',        "undo last operation"           },
 679   { 'I',        "level properties"              },
 680   { 'S',        "save level"                    },
 681   { 'C',        "clear level"                   },
 682   { 'T',        "test level"                    },
 683   { 'E',        "exit level editor"             }
 684 };
 685
 686 static int random_placement_value = 10;
 687 static int random_placement_method = RANDOM_USE_QUANTITY;
 688 static int random_placement_background_element = EL_SAND;
 689 static boolean random_placement_background_restricted = FALSE;
 690 static boolean stick_element_properties_window = FALSE;
 691 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
 692 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
 693 static struct ElementInfo custom_element;
 694
 695 static struct
 696 {
 697   int x, y;
 698   int min_value, max_value;
 699   int gadget_id_down, gadget_id_up;
 700   int gadget_id_text;
 701   int *value;
 702   char *text_above, *text_left, *text_right;
 703 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
 704 {
 705   /* ---------- level and editor settings ---------------------------------- */
 706
 707   {
 708     DX + 5 - SX,                        DY + 3 - SY,
 709     1,                                  100,
 710     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
 711     GADGET_ID_SELECT_LEVEL_TEXT,
 712     &level_nr,
 713     NULL,                               NULL, NULL
 714   },
 715   {
 716     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(2),
 717     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
 718     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
 719     GADGET_ID_LEVEL_XSIZE_TEXT,
 720     &level.fieldx,
 721     "playfield size",                   NULL, "width",
 722   },
 723   {
 724     ED_SETTINGS_XPOS(0) + 2 * DXSIZE,   ED_COUNTER_YPOS(2),
 725     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
 726     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
 727     GADGET_ID_LEVEL_YSIZE_TEXT,
 728     &level.fieldy,
 729     NULL,                               NULL, "height",
 730   },
 731   {
 732     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(3),
 733     0,                                  999,
 734     GADGET_ID_LEVEL_GEMSLIMIT_DOWN,     GADGET_ID_LEVEL_GEMSLIMIT_UP,
 735     GADGET_ID_LEVEL_GEMSLIMIT_TEXT,
 736     &level.gems_needed,
 737     "number of emeralds to collect",    NULL, NULL
 738   },
 739   {
 740     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(4),
 741     0,                                  999,
 742     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
 743     GADGET_ID_LEVEL_TIMELIMIT_TEXT,
 744     &level.time,
 745     "time available to solve level",    NULL, "(0 => no time limit)"
 746   },
 747   {
 748     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(5),
 749     0,                                  255,
 750     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
 751     GADGET_ID_LEVEL_TIMESCORE_TEXT,
 752     &level.score[SC_TIME_BONUS],
 753     "score for each 10 seconds left",   NULL, NULL
 754   },
 755   {
 756     ED_SETTINGS_XPOS(0),                ED_COUNTER2_YPOS(8),
 757     1,                                  100,
 758     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
 759     GADGET_ID_LEVEL_RANDOM_TEXT,
 760     &random_placement_value,
 761     "random element placement",         NULL, "in"
 762   },
 763
 764   /* ---------- element settings: configure (various elements) ------------- */
 765
 766   {
 767     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(0),
 768     MIN_SCORE,                          MAX_SCORE,
 769     GADGET_ID_ELEMENT_SCORE_DOWN,       GADGET_ID_ELEMENT_SCORE_UP,
 770     GADGET_ID_ELEMENT_SCORE_TEXT,
 771     NULL,                               /* will be set when used */
 772     NULL,                               NULL, NULL
 773   },
 774   {
 775     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(6),
 776     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
 777     GADGET_ID_ELEMENT_CONTENT_DOWN,     GADGET_ID_ELEMENT_CONTENT_UP,
 778     GADGET_ID_ELEMENT_CONTENT_TEXT,
 779     &level.num_yamyam_contents,
 780     NULL,                               NULL, "number of content areas"
 781   },
 782
 783   /* ---------- element settings: configure (custom elements) ------------- */
 784
 785   {
 786     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(3),
 787     MIN_SCORE,                          MAX_SCORE,
 788     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
 789     GADGET_ID_CUSTOM_SCORE_TEXT,
 790     &custom_element.score,
 791     NULL,                               "collect score", NULL
 792   },
 793   {
 794     ED_SETTINGS_XPOS(13) + 10,          ED_SETTINGS_YPOS(3),
 795     MIN_GEM_COUNT,                      MAX_GEM_COUNT,
 796     GADGET_ID_CUSTOM_GEMCOUNT_DOWN,     GADGET_ID_CUSTOM_GEMCOUNT_UP,
 797     GADGET_ID_CUSTOM_GEMCOUNT_TEXT,
 798     &custom_element.gem_count,
 799     NULL,                               "gems", NULL
 800   },
 801   {
 802     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(4),
 803     0,                                  999,
 804     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
 805     GADGET_ID_PUSH_DELAY_FIX_TEXT,
 806     &custom_element.push_delay_fixed,
 807     NULL,                               "push delay", NULL
 808   },
 809   {
 810     ED_COUNT_PUSH_DELAY_RND_XPOS,       ED_SETTINGS_YPOS(4),
 811     0,                                  999,
 812     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
 813     GADGET_ID_PUSH_DELAY_RND_TEXT,
 814     &custom_element.push_delay_random,
 815     NULL,                               "+random", NULL
 816   },
 817   {
 818     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(7),
 819     0,                                  999,
 820     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
 821     GADGET_ID_MOVE_DELAY_FIX_TEXT,
 822     &custom_element.move_delay_fixed,
 823     NULL,                               "move delay", NULL
 824   },
 825   {
 826     ED_COUNT_MOVE_DELAY_RND_XPOS,       ED_SETTINGS_YPOS(7),
 827     0,                                  999,
 828     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
 829     GADGET_ID_MOVE_DELAY_RND_TEXT,
 830     &custom_element.move_delay_random,
 831     NULL,                               "+random", NULL
 832   },
 833
 834   /* ---------- element settings: advanced (custom elements) --------------- */
 835
 836   {
 837     ED_SETTINGS_XPOS(2),                ED_SETTINGS_YPOS(3),
 838     0,                                  999,
 839     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
 840     GADGET_ID_CHANGE_DELAY_FIX_TEXT,
 841     &custom_element.change.delay_fixed,
 842     NULL,                               "delay", NULL,
 843   },
 844   {
 845     ED_COUNT_CHANGE_DELAY_RND_XPOS,     ED_SETTINGS_YPOS(3),
 846     0,                                  999,
 847     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
 848     GADGET_ID_CHANGE_DELAY_RND_TEXT,
 849     &custom_element.change.delay_random,
 850     NULL,                               "+random", NULL
 851   },
 852   {
 853     ED_SETTINGS_XPOS(3),                ED_SETTINGS_YPOS(12),
 854     0,                                  100,
 855     GADGET_ID_CHANGE_CONT_RND_DOWN,     GADGET_ID_CHANGE_CONT_RND_UP,
 856     GADGET_ID_CHANGE_CONT_RND_TEXT,
 857     &custom_element.change.random,
 858     NULL,                               "use random change:", NULL
 859   },
 860 };
 861
 862 static struct
 863 {
 864   int x, y;
 865   int gadget_id;
 866   int size;
 867   char *value;
 868   char *infotext;
 869 } textinput_info[ED_NUM_TEXTINPUT] =
 870 {
 871   {
 872     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(0),
 873     GADGET_ID_LEVEL_NAME,
 874     MAX_LEVEL_NAME_LEN,
 875     level.name,
 876     "Title"
 877   },
 878   {
 879     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(1),
 880     GADGET_ID_LEVEL_AUTHOR,
 881     MAX_LEVEL_AUTHOR_LEN,
 882     level.author,
 883     "Author"
 884   }
 885 };
 886
 887 static struct ValueTextInfo options_access_type[] =
 888 {
 889   { EP_WALKABLE,                "walk"                          },
 890   { EP_PASSABLE,                "pass"                          },
 891   { -1,                         NULL                            }
 892 };
 893
 894 static struct ValueTextInfo options_access_layer[] =
 895 {
 896   { EP_ACCESSIBLE_OVER,         "over"                          },
 897   { EP_ACCESSIBLE_INSIDE,       "inside"                        },
 898   { EP_ACCESSIBLE_UNDER,        "under"                         },
 899   { -1,                         NULL                            }
 900 };
 901
 902 static struct ValueTextInfo options_walk_to_action[] =
 903 {
 904   { EP_DIGGABLE,                "diggable"                      },
 905   { EP_COLLECTIBLE,             "collectible"                   },
 906   { EP_PUSHABLE,                "pushable"                      },
 907   { -1,                         NULL                            }
 908 };
 909
 910 static struct ValueTextInfo options_move_pattern[] =
 911 {
 912   { MV_LEFT,                    "left"                          },
 913   { MV_RIGHT,                   "right"                         },
 914   { MV_UP,                      "up"                            },
 915   { MV_DOWN,                    "down"                          },
 916   { MV_HORIZONTAL,              "horizontal"                    },
 917   { MV_VERTICAL,                "vertical"                      },
 918   { MV_ALL_DIRECTIONS,          "all directions"                },
 919   { MV_TOWARDS_PLAYER,          "towards player"                },
 920   { MV_AWAY_FROM_PLAYER,        "away from player"              },
 921   { MV_ALONG_LEFT_SIDE,         "along left side"               },
 922   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
 923   { MV_TURNING_LEFT,            "turning left"                  },
 924   { MV_TURNING_RIGHT,           "turning right"                 },
 925   { -1,                         NULL                            }
 926 };
 927
 928 static struct ValueTextInfo options_move_direction[] =
 929 {
 930   { MV_NO_MOVING,               "automatic"                     },
 931   { MV_LEFT,                    "left"                          },
 932   { MV_RIGHT,                   "right"                         },
 933   { MV_UP,                      "up"                            },
 934   { MV_DOWN,                    "down"                          },
 935   { -1,                         NULL                            }
 936 };
 937
 938 static struct ValueTextInfo options_move_stepsize[] =
 939 {
 940   { 1,                          "very slow"                     },
 941   { 2,                          "slow"                          },
 942   { 4,                          "normal"                        },
 943   { 8,                          "fast"                          },
 944   { 16,                         "very fast"                     },
 945   { -1,                         NULL                            }
 946 };
 947
 948 static struct ValueTextInfo options_smash_targets[] =
 949 {
 950   { EP_CAN_SMASH_PLAYER,        "player"                        },
 951   { EP_CAN_SMASH_ENEMIES,       "enemies"                       },
 952   { EP_CAN_SMASH_EVERYTHING,    "everything"                    },
 953   { -1,                         NULL                            }
 954 };
 955
 956 static struct ValueTextInfo options_deadliness[] =
 957 {
 958   { EP_DONT_RUN_INTO,           "running into"                  },
 959   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
 960   { EP_DONT_TOUCH,              "touching"                      },
 961   { -1,                         NULL                            }
 962 };
 963
 964 static struct ValueTextInfo options_consistency[] =
 965 {
 966   { EP_CAN_EXPLODE,             "can explode"                   },
 967   { EP_INDESTRUCTIBLE,          "indestructible"                },
 968   { -1,                         NULL                            }
 969 };
 970
 971 static struct ValueTextInfo options_time_units[] =
 972 {
 973   { 50,                         "seconds"                       },
 974   { 1,                          "frames"                        },
 975   { -1,                         NULL                            }
 976 };
 977
 978 static struct ValueTextInfo options_change_player_action[] =
 979 {
 980   { CE_TOUCHED_BY_PLAYER,       "touched"                       },
 981   { CE_PRESSED_BY_PLAYER,       "pressed"                       },
 982   { CE_PUSHED_BY_PLAYER,        "pushed"                        },
 983   { -1,                         NULL                            }
 984 };
 985
 986 static struct ValueTextInfo options_change_collide_action[] =
 987 {
 988   { CE_COLLISION,               "on collision"                  },
 989   { CE_IMPACT,                  "on impact"                     },
 990   { CE_SMASHED,                 "when smashed"                  },
 991   { -1,                         NULL                            }
 992 };
 993
 994 static struct ValueTextInfo options_change_other_action[] =
 995 {
 996   { CE_OTHER_IS_TOUCHING,               "touching"                      },
 997   { CE_OTHER_IS_CHANGING,               "change of"                     },
 998   { CE_OTHER_IS_EXPLODING,              "explosion of"                  },
 999   { CE_OTHER_GETS_TOUCHED,              "player touches"                },
1000   { CE_OTHER_GETS_PRESSED,              "player presses"                },
1001   { CE_OTHER_GETS_PUSHED,               "player pushes"                 },
1002   { CE_OTHER_GETS_COLLECTED,            "player collects"               },
1003   { -1,                         NULL                                    }
1004 };
1005
1006 static struct ValueTextInfo options_change_power[] =
1007 {
1008   { CP_NON_DESTRUCTIVE,         "non-destructive"               },
1009   { CP_HALF_DESTRUCTIVE,        "half-destructive"              },
1010   { CP_FULL_DESTRUCTIVE,        "full-destructive"              },
1011   { -1,                         NULL                            }
1012 };
1013
1014 static struct
1015 {
1016   int x, y;
1017   int gadget_id;
1018   int size;     /* char size of selectbox or '-1' (dynamically determined) */
1019   struct ValueTextInfo *options;
1020   int *value;
1021   char *text_left, *text_right, *infotext;
1022 } selectbox_info[ED_NUM_SELECTBOX] =
1023 {
1024   /* ---------- element settings: configure (custom elements) ------------- */
1025
1026   {
1027     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(1),
1028     GADGET_ID_CUSTOM_ACCESS_TYPE,
1029     -1,
1030     options_access_type,
1031     &custom_element.access_type,
1032     "player can", NULL, "type of access to this field"
1033   },
1034   {
1035     ED_SETTINGS_XPOS(11),               ED_SETTINGS_YPOS(1),
1036     GADGET_ID_CUSTOM_ACCESS_LAYER,
1037     -1,
1038     options_access_layer,
1039     &custom_element.access_layer,
1040     NULL, NULL, "layer of access for this field"
1041   },
1042   {
1043     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(2),
1044     GADGET_ID_CUSTOM_WALK_TO_ACTION,
1045     -1,
1046     options_walk_to_action,
1047     &custom_element.walk_to_action,
1048     NULL, NULL, "diggable/collectible/pushable"
1049   },
1050   {
1051     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(5),
1052     GADGET_ID_CUSTOM_MOVE_PATTERN,
1053     -1,
1054     options_move_pattern,
1055     &custom_element.move_pattern,
1056     "can move", NULL, "element move direction"
1057   },
1058   {
1059     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(6),
1060     GADGET_ID_CUSTOM_MOVE_DIRECTION,
1061     -1,
1062     options_move_direction,
1063     &custom_element.move_direction_initial,
1064     "starts moving", NULL, "initial element move direction"
1065   },
1066   {
1067     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(8),
1068     GADGET_ID_CUSTOM_MOVE_STEPSIZE,
1069     -1,
1070     options_move_stepsize,
1071     &custom_element.move_stepsize,
1072     "move/fall speed", NULL, "speed of element movement"
1073   },
1074   {
1075     ED_SETTINGS_XPOS(7),                ED_SETTINGS_YPOS(9),
1076     GADGET_ID_CUSTOM_SMASH_TARGETS,
1077     -1,
1078     options_smash_targets,
1079     &custom_element.smash_targets,
1080     "can smash", NULL, "elements that can be smashed"
1081   },
1082   {
1083     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(11),
1084     GADGET_ID_CUSTOM_DEADLINESS,
1085     -1,
1086     options_deadliness,
1087     &custom_element.deadliness,
1088     "deadly when", NULL, "deadliness of element"
1089   },
1090   {
1091     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(12),
1092     GADGET_ID_CUSTOM_CONSISTENCY,
1093     -1,
1094     options_consistency,
1095     &custom_element.consistency,
1096     NULL, "explodes to:", "consistency/destructibility"
1097   },
1098
1099   /* ---------- element settings: advanced (custom elements) --------------- */
1100
1101   {
1102     ED_SETTINGS_XPOS(2),                ED_SETTINGS_YPOS(4),
1103     GADGET_ID_CHANGE_TIME_UNITS,
1104     -1,
1105     options_time_units,
1106     &custom_element.change.delay_frames,
1107     "delay time given in", NULL, "delay time units for change"
1108   },
1109   {
1110     ED_SETTINGS_XPOS(2),                ED_SETTINGS_YPOS(5),
1111     GADGET_ID_CHANGE_PLAYER_ACTION,
1112     -1,
1113     options_change_player_action,
1114     &custom_element.change_player_action,
1115     NULL, "by player", "type of player contact"
1116   },
1117   {
1118     ED_SETTINGS_XPOS(2),                ED_SETTINGS_YPOS(6),
1119     GADGET_ID_CHANGE_COLLIDE_ACTION,
1120     -1,
1121     options_change_collide_action,
1122     &custom_element.change_collide_action,
1123     NULL, NULL, "change after impact or smash"
1124   },
1125   {
1126     ED_SETTINGS_XPOS(2),                ED_SETTINGS_YPOS(7),
1127     GADGET_ID_CHANGE_OTHER_ACTION,
1128     -1,
1129     options_change_other_action,
1130     &custom_element.change_other_action,
1131     NULL, "element:", "type of other element action"
1132   },
1133   {
1134     ED_SETTINGS_XPOS(2),                ED_SETTINGS_YPOS(10),
1135     GADGET_ID_CHANGE_POWER,
1136     -1,
1137     options_change_power,
1138     &custom_element.change.power,
1139     "power:", NULL, "power of extended change"
1140   },
1141 };
1142
1143 static struct
1144 {
1145   int x, y;
1146   int gadget_id;
1147   int size;
1148   char *text, *infotext;
1149 } textbutton_info[ED_NUM_TEXTBUTTON] =
1150 {
1151   {
1152     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(1),
1153     GADGET_ID_PROPERTIES_INFO,
1154     11, "Information",                  "Show information about element"
1155   },
1156   {
1157     ED_SETTINGS_XPOS(0) + 166,          ED_COUNTER_YPOS(1),
1158     GADGET_ID_PROPERTIES_CONFIG,
1159     11, "Configure",                    "Configure element properties"
1160   },
1161   {
1162     ED_SETTINGS_XPOS(0) + 332,          ED_COUNTER_YPOS(1),
1163     GADGET_ID_PROPERTIES_ADVANCED,
1164     11, "Advanced",                     "Advanced element configuration"
1165   },
1166   {
1167     ED_SETTINGS_XPOS(0) + 262,          ED_SETTINGS_YPOS(13),
1168     GADGET_ID_SAVE_AS_TEMPLATE,
1169     -1, "Save as template",             "Save current settings as new template"
1170   },
1171 };
1172
1173 static struct
1174 {
1175   int gd_x, gd_y;
1176   int x, y;
1177   int gadget_id;
1178   char *infotext;
1179 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
1180 {
1181   {
1182     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 0 * ED_SCROLLBUTTON_YSIZE,
1183     ED_SCROLL_UP_XPOS,      ED_SCROLL_UP_YPOS,
1184     GADGET_ID_SCROLL_UP,
1185     "scroll level editing area up"
1186   },
1187   {
1188     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 1 * ED_SCROLLBUTTON_YSIZE,
1189     ED_SCROLL_DOWN_XPOS,    ED_SCROLL_DOWN_YPOS,
1190     GADGET_ID_SCROLL_DOWN,
1191     "scroll level editing area down"
1192   },
1193   {
1194     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 2 * ED_SCROLLBUTTON_YSIZE,
1195     ED_SCROLL_LEFT_XPOS,    ED_SCROLL_LEFT_YPOS,
1196     GADGET_ID_SCROLL_LEFT,
1197     "scroll level editing area left"
1198   },
1199   {
1200     ED_SCROLLBUTTON_XPOS,   ED_SCROLLBUTTON_YPOS + 3 * ED_SCROLLBUTTON_YSIZE,
1201     ED_SCROLL_RIGHT_XPOS,   ED_SCROLL_RIGHT_YPOS,
1202     GADGET_ID_SCROLL_RIGHT,
1203     "scroll level editing area right"
1204   },
1205   {
1206     ED_SCROLLBUTTON2_XPOS,  ED_SCROLLBUTTON2_YPOS + 0 * ED_SCROLLBUTTON2_YSIZE,
1207     ED_SCROLL2_UP_XPOS,     ED_SCROLL2_UP_YPOS,
1208     GADGET_ID_SCROLL_LIST_UP,
1209     "scroll element list up ('Page Up')"
1210   },
1211   {
1212     ED_SCROLLBUTTON2_XPOS,  ED_SCROLLBUTTON2_YPOS + 1 * ED_SCROLLBUTTON2_YSIZE,
1213     ED_SCROLL2_DOWN_XPOS,    ED_SCROLL2_DOWN_YPOS,
1214     GADGET_ID_SCROLL_LIST_DOWN,
1215     "scroll element list down ('Page Down')"
1216   }
1217 };
1218
1219 static struct
1220 {
1221   int gd_x, gd_y;
1222   int x, y;
1223   int width, height;
1224   int type;
1225   int gadget_id;
1226   char *infotext;
1227 } scrollbar_info[ED_NUM_SCROLLBARS] =
1228 {
1229   {
1230     ED_SCROLLBAR_XPOS,                  ED_SCROLLBAR_YPOS,
1231     SX + ED_SCROLL_HORIZONTAL_XPOS,     SY + ED_SCROLL_HORIZONTAL_YPOS,
1232     ED_SCROLL_HORIZONTAL_XSIZE,         ED_SCROLL_HORIZONTAL_YSIZE,
1233     GD_TYPE_SCROLLBAR_HORIZONTAL,
1234     GADGET_ID_SCROLL_HORIZONTAL,
1235     "scroll level editing area horizontally"
1236   },
1237   {
1238     ED_SCROLLBAR_XPOS,                  ED_SCROLLBAR_YPOS,
1239     SX + ED_SCROLL_VERTICAL_XPOS,       SY + ED_SCROLL_VERTICAL_YPOS,
1240     ED_SCROLL_VERTICAL_XSIZE,           ED_SCROLL_VERTICAL_YSIZE,
1241     GD_TYPE_SCROLLBAR_VERTICAL,
1242     GADGET_ID_SCROLL_VERTICAL,
1243     "scroll level editing area vertically"
1244   },
1245   {
1246     ED_SCROLLBAR2_XPOS,                 ED_SCROLLBAR2_YPOS,
1247     DX + ED_SCROLL2_VERTICAL_XPOS,      DY + ED_SCROLL2_VERTICAL_YPOS,
1248     ED_SCROLL2_VERTICAL_XSIZE,          ED_SCROLL2_VERTICAL_YSIZE,
1249     GD_TYPE_SCROLLBAR_VERTICAL,
1250     GADGET_ID_SCROLL_LIST_VERTICAL,
1251     "scroll element list vertically"
1252   }
1253 };
1254
1255 static struct
1256 {
1257   int x, y;
1258   int gadget_id;
1259   int radio_button_nr;
1260   int *value;
1261   int checked_value;
1262   char *text_right, *infotext;
1263 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
1264 {
1265   {
1266     ED_SETTINGS_XPOS(0) + 160,          ED_COUNTER2_YPOS(8),
1267     GADGET_ID_RANDOM_PERCENTAGE,
1268     RADIO_NR_RANDOM_ELEMENTS,
1269     &random_placement_method,           RANDOM_USE_PERCENTAGE,
1270     "percentage",                       "use percentage for random elements"
1271   },
1272   {
1273     ED_SETTINGS_XPOS(0) + 340,          ED_COUNTER2_YPOS(8),
1274     GADGET_ID_RANDOM_QUANTITY,
1275     RADIO_NR_RANDOM_ELEMENTS,
1276     &random_placement_method,           RANDOM_USE_QUANTITY,
1277     "quantity",                         "use quantity for random elements"
1278   }
1279 };
1280
1281 static struct
1282 {
1283   int x, y;
1284   int gadget_id;
1285   boolean *value;
1286   char *text_right, *infotext;
1287 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
1288 {
1289   /* ---------- level and editor settings ---------------------------------- */
1290
1291   {
1292     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(6) - MINI_TILEY,
1293     GADGET_ID_DOUBLE_SPEED,
1294     &level.double_speed,
1295     "double speed movement",            "set movement speed of player"
1296   },
1297   {
1298     ED_SETTINGS_XPOS(0) + 340,          ED_COUNTER_YPOS(6) - MINI_TILEY,
1299     GADGET_ID_GRAVITY,
1300     &level.gravity,
1301     "gravity",                          "set level gravity"
1302   },
1303   {
1304     ED_SETTINGS_XPOS(0),                ED_COUNTER2_YPOS(9) - MINI_TILEY,
1305     GADGET_ID_RANDOM_RESTRICTED,
1306     &random_placement_background_restricted,
1307     "restrict random placement to",     "set random placement restriction"
1308   },
1309
1310   /* ---------- element settings: configure (various elements) ------------- */
1311
1312   {
1313     ED_SETTINGS_XPOS(0),                0,      /* set at runtime */
1314     GADGET_ID_STICK_ELEMENT,
1315     &stick_element_properties_window,
1316     "stick this screen to edit content","stick this screen to edit content"
1317   },
1318   {
1319     ED_SETTINGS_XPOS(0),                ED_COUNTER_YPOS(4),
1320     GADGET_ID_EM_SLIPPERY_GEMS,
1321     &level.em_slippery_gems,
1322     "slip down from certain flat walls","use EM style slipping behaviour"
1323   },
1324
1325   /* ---------- element settings: configure (custom elements) ------------- */
1326
1327   {
1328     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(1),
1329     GADGET_ID_CUSTOM_ACCESSIBLE,
1330     &custom_element_properties[EP_ACCESSIBLE],
1331     NULL,                               "player can walk to or pass this field"
1332   },
1333   {
1334     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(2),
1335     GADGET_ID_CUSTOM_WALK_TO_OBJECT,
1336     &custom_element_properties[EP_WALK_TO_OBJECT],
1337     NULL,                               "player can dig/collect/push element"
1338   },
1339   {
1340     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(5),
1341     GADGET_ID_CUSTOM_CAN_MOVE,
1342     &custom_element_properties[EP_CAN_MOVE],
1343     NULL,                               "element can move in some direction"
1344   },
1345   {
1346     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(9),
1347     GADGET_ID_CUSTOM_CAN_FALL,
1348     &custom_element_properties[EP_CAN_FALL],
1349     "can fall",                         "element can fall down"
1350   },
1351   {
1352     ED_SETTINGS_XPOS(6),                ED_SETTINGS_YPOS(9),
1353     GADGET_ID_CUSTOM_CAN_SMASH,
1354     &custom_element_properties[EP_CAN_SMASH],
1355     NULL,                               "element can smash other elements"
1356   },
1357   {
1358     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(10),
1359     GADGET_ID_CUSTOM_SLIPPERY,
1360     &custom_element_properties[EP_SLIPPERY],
1361     "slippery",                         "other elements can fall down from it"
1362   },
1363   {
1364     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(11),
1365     GADGET_ID_CUSTOM_DEADLY,
1366     &custom_element_properties[EP_DEADLY],
1367     NULL,                               "element can kill the player"
1368   },
1369   {
1370     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(12),
1371     GADGET_ID_CUSTOM_EXPLODE_RESULT,
1372     &custom_element_properties[EP_EXPLODE_RESULT],
1373     NULL,                               "set consistency/destructibility"
1374   },
1375   {
1376     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(13),
1377     GADGET_ID_CUSTOM_EXPLODE_FIRE,
1378     &custom_element.can_explode_by_fire,
1379     "by fire",                          "element can explode by fire/explosion"
1380   },
1381   {
1382     ED_SETTINGS_XPOS(7),                ED_SETTINGS_YPOS(13),
1383     GADGET_ID_CUSTOM_EXPLODE_SMASH,
1384     &custom_element.can_explode_smashed,
1385     "smashed",                          "element can explode when smashed"
1386   },
1387   {
1388     ED_SETTINGS_XPOS(13),               ED_SETTINGS_YPOS(13),
1389     GADGET_ID_CUSTOM_EXPLODE_IMPACT,
1390     &custom_element.can_explode_impact,
1391     "impact",                           "element can explode on impact"
1392   },
1393
1394   /* ---------- element settings: advanced (custom elements) --------------- */
1395
1396   {
1397     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(1),
1398     GADGET_ID_CUSTOM_USE_GRAPHIC,
1399     &custom_element.use_gfx_element,
1400     "use graphic of element:",          "use graphic for custom element"
1401   },
1402   {
1403     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(2),
1404     GADGET_ID_CUSTOM_CAN_CHANGE,
1405     &custom_element_properties[EP_CAN_CHANGE],
1406     "element changes to    after/when:","element can change to other element"
1407   },
1408   {
1409     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(3),
1410     GADGET_ID_CHANGE_DELAY,
1411     &custom_element_change_events[CE_DELAY],
1412     NULL,                               "element changes after delay"
1413   },
1414   {
1415     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(5),
1416     GADGET_ID_CHANGE_BY_PLAYER,
1417     &custom_element_change_events[CE_BY_PLAYER],
1418     NULL,                               "element changes by player contact"
1419   },
1420   {
1421     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(6),
1422     GADGET_ID_CHANGE_BY_COLLISION,
1423     &custom_element_change_events[CE_BY_COLLISION],
1424     NULL,                               "element changes by impact or smash"
1425   },
1426   {
1427     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(7),
1428     GADGET_ID_CHANGE_BY_OTHER,
1429     &custom_element_change_events[CE_BY_OTHER],
1430     NULL,                               "element changes by other element"
1431   },
1432   {
1433     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(8),
1434     GADGET_ID_CHANGE_USE_EXPLOSION,
1435     &custom_element.change.explode,
1436     "explode instead of change",        "element explodes instead of change"
1437   },
1438   {
1439     ED_SETTINGS_XPOS(1),                ED_SETTINGS_YPOS(9),
1440     GADGET_ID_CHANGE_USE_CONTENT,
1441     &custom_element.change.use_content,
1442     "use extended change target:",      "element changes to more elements"
1443   },
1444   {
1445     ED_SETTINGS_XPOS(2),                ED_SETTINGS_YPOS(11),
1446     GADGET_ID_CHANGE_ONLY_COMPLETE,
1447     &custom_element.change.only_complete,
1448     "only use complete change",         "only use complete extended content"
1449   },
1450   {
1451     ED_SETTINGS_XPOS(2),                ED_SETTINGS_YPOS(12),
1452     GADGET_ID_CHANGE_USE_RANDOM,
1453     &custom_element.change.use_random_change,
1454     NULL,                               "use random value for new content"
1455   },
1456   {
1457     ED_SETTINGS_XPOS(0),                ED_SETTINGS_YPOS(13),
1458     GADGET_ID_CUSTOM_USE_TEMPLATE,
1459     &level.use_custom_template,
1460     "use template",                     "use template for custom properties"
1461   },
1462 };
1463
1464
1465 /*
1466   -----------------------------------------------------------------------------
1467   some internally used variables
1468   -----------------------------------------------------------------------------
1469 */
1470
1471 /* actual size of level editor drawing area */
1472 static int ed_fieldx = MAX_ED_FIELDX - 1, ed_fieldy = MAX_ED_FIELDY - 1;
1473
1474 /* actual position of level editor drawing area in level playfield */
1475 static int level_xpos = -1, level_ypos = -1;
1476
1477 #define IN_ED_FIELD(x,y)  ((x)>=0 && (x)<ed_fieldx && (y)>=0 &&(y)<ed_fieldy)
1478
1479 /* drawing elements on the three mouse buttons */
1480 static int new_element1 = EL_WALL;
1481 static int new_element2 = EL_EMPTY;
1482 static int new_element3 = EL_SAND;
1483
1484 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
1485                                 (button) == 2 ? new_element2 : \
1486                                 (button) == 3 ? new_element3 : EL_EMPTY)
1487 #define BUTTON_STEPSIZE(button) ((button) == 1 ? 1 : (button) == 2 ? 5 : 10)
1488
1489 /* forward declaration for internal use */
1490 static void ModifyEditorCounter(int, int);
1491 static void ModifyEditorCounterLimits(int, int, int);
1492 static void ModifyEditorSelectbox(int, int);
1493 static void ModifyEditorElementList();
1494 static void DrawDrawingWindow();
1495 static void DrawLevelInfoWindow();
1496 static void DrawPropertiesWindow();
1497 static boolean checkPropertiesConfig();
1498 static void CopyLevelToUndoBuffer(int);
1499 static void HandleDrawingAreas(struct GadgetInfo *);
1500 static void HandleCounterButtons(struct GadgetInfo *);
1501 static void HandleTextInputGadgets(struct GadgetInfo *);
1502 static void HandleSelectboxGadgets(struct GadgetInfo *);
1503 static void HandleTextbuttonGadgets(struct GadgetInfo *);
1504 static void HandleRadiobuttons(struct GadgetInfo *);
1505 static void HandleCheckbuttons(struct GadgetInfo *);
1506 static void HandleControlButtons(struct GadgetInfo *);
1507 static void HandleDrawingAreaInfo(struct GadgetInfo *);
1508
1509 static struct GadgetInfo *level_editor_gadget[NUM_EDITOR_GADGETS];
1510
1511 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
1512 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
1513 static boolean draw_with_brush = FALSE;
1514 static int properties_element = 0;
1515
1516 static short FieldBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
1517 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
1518 static int undo_buffer_position = 0;
1519 static int undo_buffer_steps = 0;
1520
1521 static int edit_mode;
1522 static int edit_mode_properties;
1523
1524 static int element_shift = 0;
1525
1526 static int editor_el_boulderdash[] =
1527 {
1528   EL_CHAR('B'),
1529   EL_CHAR('O'),
1530   EL_CHAR('U'),
1531   EL_CHAR('L'),
1532
1533   EL_CHAR('-'),
1534   EL_CHAR('D'),
1535   EL_CHAR('E'),
1536   EL_CHAR('R'),
1537
1538   EL_CHAR('D'),
1539   EL_CHAR('A'),
1540   EL_CHAR('S'),
1541   EL_CHAR('H'),
1542
1543   EL_PLAYER_1,
1544   EL_EMPTY,
1545   EL_SAND,
1546   EL_STEELWALL,
1547
1548   EL_BD_WALL,
1549   EL_BD_MAGIC_WALL,
1550   EL_EXIT_CLOSED,
1551   EL_EXIT_OPEN,
1552
1553   EL_BD_DIAMOND,
1554   EL_BD_BUTTERFLY_UP,
1555   EL_BD_FIREFLY_UP,
1556   EL_BD_ROCK,
1557
1558   EL_BD_BUTTERFLY_LEFT,
1559   EL_BD_FIREFLY_LEFT,
1560   EL_BD_BUTTERFLY_RIGHT,
1561   EL_BD_FIREFLY_RIGHT,
1562
1563   EL_BD_AMOEBA,
1564   EL_BD_BUTTERFLY_DOWN,
1565   EL_BD_FIREFLY_DOWN,
1566   EL_EMPTY,
1567 };
1568 static int num_editor_el_boulderdash = SIZEOF_ARRAY_INT(editor_el_boulderdash);
1569
1570 static int editor_el_emerald_mine[] =
1571 {
1572   EL_CHAR('E'),
1573   EL_CHAR('M'),
1574   EL_CHAR('E'),
1575   EL_CHAR('-'),
1576
1577   EL_CHAR('R'),
1578   EL_CHAR('A'),
1579   EL_CHAR('L'),
1580   EL_CHAR('D'),
1581
1582   EL_CHAR('M'),
1583   EL_CHAR('I'),
1584   EL_CHAR('N'),
1585   EL_CHAR('E'),
1586
1587   EL_PLAYER_1,
1588   EL_PLAYER_2,
1589   EL_PLAYER_3,
1590   EL_PLAYER_4,
1591
1592   EL_PLAYER_1,
1593   EL_EMPTY,
1594   EL_SAND,
1595   EL_ROCK,
1596
1597   EL_STEELWALL,
1598   EL_WALL,
1599   EL_WALL_CRUMBLED,
1600   EL_MAGIC_WALL,
1601
1602   EL_EMERALD,
1603   EL_DIAMOND,
1604   EL_NUT,
1605   EL_BOMB,
1606
1607   EL_WALL_EMERALD,
1608   EL_WALL_DIAMOND,
1609   EL_QUICKSAND_EMPTY,
1610   EL_QUICKSAND_FULL,
1611
1612   EL_DYNAMITE,
1613   EL_DYNAMITE_ACTIVE,
1614   EL_EXIT_CLOSED,
1615   EL_EXIT_OPEN,
1616
1617   EL_YAMYAM,
1618   EL_BUG_UP,
1619   EL_SPACESHIP_UP,
1620   EL_ROBOT,
1621
1622   EL_BUG_LEFT,
1623   EL_SPACESHIP_LEFT,
1624   EL_BUG_RIGHT,
1625   EL_SPACESHIP_RIGHT,
1626
1627   EL_ROBOT_WHEEL,
1628   EL_BUG_DOWN,
1629   EL_SPACESHIP_DOWN,
1630   EL_INVISIBLE_WALL,
1631
1632   EL_ACID_POOL_TOPLEFT,
1633   EL_ACID,
1634   EL_ACID_POOL_TOPRIGHT,
1635   EL_EMPTY,
1636
1637   EL_ACID_POOL_BOTTOMLEFT,
1638   EL_ACID_POOL_BOTTOM,
1639   EL_ACID_POOL_BOTTOMRIGHT,
1640   EL_EMPTY,
1641
1642   EL_AMOEBA_DROP,
1643   EL_AMOEBA_DEAD,
1644   EL_AMOEBA_WET,
1645   EL_AMOEBA_DRY,
1646
1647   EL_EM_KEY_1_FILE,
1648   EL_EM_KEY_2_FILE,
1649   EL_EM_KEY_3_FILE,
1650   EL_EM_KEY_4_FILE,
1651
1652   EL_EM_GATE_1,
1653   EL_EM_GATE_2,
1654   EL_EM_GATE_3,
1655   EL_EM_GATE_4,
1656
1657   EL_EM_GATE_1_GRAY,
1658   EL_EM_GATE_2_GRAY,
1659   EL_EM_GATE_3_GRAY,
1660   EL_EM_GATE_4_GRAY,
1661 };
1662 static int num_editor_el_emerald_mine = SIZEOF_ARRAY_INT(editor_el_emerald_mine);
1663
1664 static int editor_el_more[] =
1665 {
1666   EL_CHAR('M'),
1667   EL_CHAR('O'),
1668   EL_CHAR('R'),
1669   EL_CHAR('E'),
1670
1671   EL_KEY_1,
1672   EL_KEY_2,
1673   EL_KEY_3,
1674   EL_KEY_4,
1675
1676   EL_GATE_1,
1677   EL_GATE_2,
1678   EL_GATE_3,
1679   EL_GATE_4,
1680
1681   EL_GATE_1_GRAY,
1682   EL_GATE_2_GRAY,
1683   EL_GATE_3_GRAY,
1684   EL_GATE_4_GRAY,
1685
1686   EL_ARROW_LEFT,
1687   EL_ARROW_RIGHT,
1688   EL_ARROW_UP,
1689   EL_ARROW_DOWN,
1690
1691   EL_AMOEBA_FULL,
1692   EL_EMERALD_YELLOW,
1693   EL_EMERALD_RED,
1694   EL_EMERALD_PURPLE,
1695
1696   EL_WALL_BD_DIAMOND,
1697   EL_WALL_EMERALD_YELLOW,
1698   EL_WALL_EMERALD_RED,
1699   EL_WALL_EMERALD_PURPLE,
1700
1701   EL_GAME_OF_LIFE,
1702   EL_PACMAN_UP,
1703   EL_TIME_ORB_FULL,
1704   EL_TIME_ORB_EMPTY,
1705
1706   EL_PACMAN_LEFT,
1707   EL_DARK_YAMYAM,
1708   EL_PACMAN_RIGHT,
1709   EL_EXPANDABLE_WALL,
1710
1711   EL_BIOMAZE,
1712   EL_PACMAN_DOWN,
1713   EL_LAMP,
1714   EL_LAMP_ACTIVE,
1715
1716   EL_DYNABOMB_INCREASE_NUMBER,
1717   EL_DYNABOMB_INCREASE_SIZE,
1718   EL_DYNABOMB_INCREASE_POWER,
1719   EL_STONEBLOCK,
1720
1721   EL_MOLE,
1722   EL_PENGUIN,
1723   EL_PIG,
1724   EL_DRAGON,
1725
1726   EL_EMPTY,
1727   EL_MOLE_UP,
1728   EL_EMPTY,
1729   EL_EMPTY,
1730
1731   EL_MOLE_LEFT,
1732   EL_EMPTY,
1733   EL_MOLE_RIGHT,
1734   EL_EMPTY,
1735
1736   EL_EMPTY,
1737   EL_MOLE_DOWN,
1738   EL_BALLOON,
1739   EL_BALLOON_SWITCH_ANY,
1740
1741   EL_BALLOON_SWITCH_LEFT,
1742   EL_BALLOON_SWITCH_RIGHT,
1743   EL_BALLOON_SWITCH_UP,
1744   EL_BALLOON_SWITCH_DOWN,
1745
1746   EL_SATELLITE,
1747   EL_EXPANDABLE_WALL_HORIZONTAL,
1748   EL_EXPANDABLE_WALL_VERTICAL,
1749   EL_EXPANDABLE_WALL_ANY,
1750
1751   EL_INVISIBLE_STEELWALL,
1752   EL_INVISIBLE_WALL,
1753   EL_SPEED_PILL,
1754   EL_BLACK_ORB,
1755
1756   EL_EMC_STEELWALL_1,
1757   EL_EMC_WALL_1,
1758   EL_EMC_WALL_2,
1759   EL_EMC_WALL_3,
1760
1761   EL_EMC_WALL_4,
1762   EL_EMC_WALL_5,
1763   EL_EMC_WALL_6,
1764   EL_EMC_WALL_7,
1765 };
1766 static int num_editor_el_more = SIZEOF_ARRAY_INT(editor_el_more);
1767
1768 static int editor_el_sokoban[] =
1769 {
1770   EL_CHAR('S'),
1771   EL_CHAR('O'),
1772   EL_CHAR('K'),
1773   EL_CHAR('O'),
1774
1775   EL_CHAR('-'),
1776   EL_CHAR('B'),
1777   EL_CHAR('A'),
1778   EL_CHAR('N'),
1779
1780   EL_SOKOBAN_OBJECT,
1781   EL_SOKOBAN_FIELD_EMPTY,
1782   EL_SOKOBAN_FIELD_FULL,
1783   EL_STEELWALL,
1784 };
1785 static int num_editor_el_sokoban = SIZEOF_ARRAY_INT(editor_el_sokoban);
1786
1787 static int editor_el_supaplex[] =
1788 {
1789   EL_CHAR('S'),
1790   EL_CHAR('U'),
1791   EL_CHAR('P'),
1792   EL_CHAR('A'),
1793
1794   EL_CHAR('P'),
1795   EL_CHAR('L'),
1796   EL_CHAR('E'),
1797   EL_CHAR('X'),
1798
1799   EL_SP_EMPTY,
1800   EL_SP_ZONK,
1801   EL_SP_BASE,
1802   EL_SP_MURPHY,
1803
1804   EL_SP_INFOTRON,
1805   EL_SP_CHIP_SINGLE,
1806   EL_SP_HARDWARE_GRAY,
1807   EL_SP_EXIT_CLOSED,
1808
1809   EL_SP_DISK_ORANGE,
1810   EL_SP_PORT_RIGHT,
1811   EL_SP_PORT_DOWN,
1812   EL_SP_PORT_LEFT,
1813
1814   EL_SP_PORT_UP,
1815   EL_SP_GRAVITY_PORT_RIGHT,
1816   EL_SP_GRAVITY_PORT_DOWN,
1817   EL_SP_GRAVITY_PORT_LEFT,
1818
1819   EL_SP_GRAVITY_PORT_UP,
1820   EL_SP_SNIKSNAK,
1821   EL_SP_DISK_YELLOW,
1822   EL_SP_TERMINAL,
1823
1824   EL_SP_DISK_RED,
1825   EL_SP_PORT_VERTICAL,
1826   EL_SP_PORT_HORIZONTAL,
1827   EL_SP_PORT_ANY,
1828
1829   EL_SP_ELECTRON,
1830   EL_SP_BUGGY_BASE,
1831   EL_SP_CHIP_LEFT,
1832   EL_SP_CHIP_RIGHT,
1833
1834   EL_SP_HARDWARE_BASE_1,
1835   EL_SP_HARDWARE_GREEN,
1836   EL_SP_HARDWARE_BLUE,
1837   EL_SP_HARDWARE_RED,
1838
1839   EL_SP_HARDWARE_YELLOW,
1840   EL_SP_HARDWARE_BASE_2,
1841   EL_SP_HARDWARE_BASE_3,
1842   EL_SP_HARDWARE_BASE_4,
1843
1844   EL_SP_HARDWARE_BASE_5,
1845   EL_SP_HARDWARE_BASE_6,
1846   EL_SP_CHIP_TOP,
1847   EL_SP_CHIP_BOTTOM,
1848 };
1849 static int num_editor_el_supaplex = SIZEOF_ARRAY_INT(editor_el_supaplex);
1850
1851 static int editor_el_diamond_caves[] =
1852 {
1853   EL_CHAR('D'),
1854   EL_CHAR('I'),
1855   EL_CHAR('A'),
1856   EL_CHAR('-'),
1857
1858   EL_CHAR('M'),
1859   EL_CHAR('O'),
1860   EL_CHAR('N'),
1861   EL_CHAR('D'),
1862
1863   EL_CHAR('C'),
1864   EL_CHAR('A'),
1865   EL_CHAR('V'),
1866   EL_CHAR('E'),
1867
1868   EL_CHAR('S'),
1869   EL_CHAR(' '),
1870   EL_CHAR('I'),
1871   EL_CHAR('I'),
1872
1873   EL_PEARL,
1874   EL_CRYSTAL,
1875   EL_WALL_PEARL,
1876   EL_WALL_CRYSTAL,
1877
1878   EL_CONVEYOR_BELT_1_LEFT,
1879   EL_CONVEYOR_BELT_1_MIDDLE,
1880   EL_CONVEYOR_BELT_1_RIGHT,
1881   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
1882
1883   EL_CONVEYOR_BELT_2_LEFT,
1884   EL_CONVEYOR_BELT_2_MIDDLE,
1885   EL_CONVEYOR_BELT_2_RIGHT,
1886   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
1887
1888   EL_CONVEYOR_BELT_3_LEFT,
1889   EL_CONVEYOR_BELT_3_MIDDLE,
1890   EL_CONVEYOR_BELT_3_RIGHT,
1891   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
1892
1893   EL_CONVEYOR_BELT_4_LEFT,
1894   EL_CONVEYOR_BELT_4_MIDDLE,
1895   EL_CONVEYOR_BELT_4_RIGHT,
1896   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
1897
1898   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
1899   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
1900   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
1901   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
1902
1903   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
1904   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
1905   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
1906   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
1907
1908   EL_SWITCHGATE_OPEN,
1909   EL_SWITCHGATE_CLOSED,
1910   EL_SWITCHGATE_SWITCH_UP,
1911   EL_ENVELOPE,
1912
1913   EL_TIMEGATE_CLOSED,
1914   EL_TIMEGATE_OPEN,
1915   EL_TIMEGATE_SWITCH,
1916   EL_EMPTY,
1917
1918   EL_LANDMINE,
1919   EL_INVISIBLE_SAND,
1920   EL_STEELWALL_SLANTED,
1921   EL_EMPTY,
1922
1923   EL_SIGN_EXCLAMATION,
1924   EL_SIGN_STOP,
1925   EL_LIGHT_SWITCH,
1926   EL_LIGHT_SWITCH_ACTIVE,
1927
1928   EL_SHIELD_NORMAL,
1929   EL_SHIELD_DEADLY,
1930   EL_EXTRA_TIME,
1931   EL_EMPTY,
1932 };
1933 static int num_editor_el_diamond_caves = SIZEOF_ARRAY_INT(editor_el_diamond_caves);
1934
1935 static int editor_el_dx_boulderdash[] =
1936 {
1937   EL_CHAR('D'),
1938   EL_CHAR('X'),
1939   EL_CHAR('-'),
1940   EL_CHAR(' '),
1941
1942   EL_CHAR('B'),
1943   EL_CHAR('O'),
1944   EL_CHAR('U'),
1945   EL_CHAR('L'),
1946
1947   EL_CHAR('-'),
1948   EL_CHAR('D'),
1949   EL_CHAR('E'),
1950   EL_CHAR('R'),
1951
1952   EL_CHAR('D'),
1953   EL_CHAR('A'),
1954   EL_CHAR('S'),
1955   EL_CHAR('H'),
1956
1957   EL_SPRING,
1958   EL_TUBE_RIGHT_DOWN,
1959   EL_TUBE_HORIZONTAL_DOWN,
1960   EL_TUBE_LEFT_DOWN,
1961
1962   EL_TUBE_HORIZONTAL,
1963   EL_TUBE_VERTICAL_RIGHT,
1964   EL_TUBE_ANY,
1965   EL_TUBE_VERTICAL_LEFT,
1966
1967   EL_TUBE_VERTICAL,
1968   EL_TUBE_RIGHT_UP,
1969   EL_TUBE_HORIZONTAL_UP,
1970   EL_TUBE_LEFT_UP,
1971
1972   EL_TRAP,
1973   EL_DX_SUPABOMB,
1974   EL_EMPTY,
1975   EL_EMPTY
1976 };
1977 static int num_editor_el_dx_boulderdash = SIZEOF_ARRAY_INT(editor_el_dx_boulderdash);
1978
1979 static int editor_el_chars[] =
1980 {
1981   EL_CHAR('T'),
1982   EL_CHAR('E'),
1983   EL_CHAR('X'),
1984   EL_CHAR('T'),
1985
1986   EL_CHAR(' '),
1987   EL_CHAR('!'),
1988   EL_CHAR('"'),
1989   EL_CHAR('#'),
1990
1991   EL_CHAR('$'),
1992   EL_CHAR('%'),
1993   EL_CHAR('&'),
1994   EL_CHAR('\''),
1995
1996   EL_CHAR('('),
1997   EL_CHAR(')'),
1998   EL_CHAR('*'),
1999   EL_CHAR('+'),
2000
2001   EL_CHAR(','),
2002   EL_CHAR('-'),
2003   EL_CHAR('.'),
2004   EL_CHAR('/'),
2005
2006   EL_CHAR('0'),
2007   EL_CHAR('1'),
2008   EL_CHAR('2'),
2009   EL_CHAR('3'),
2010
2011   EL_CHAR('4'),
2012   EL_CHAR('5'),
2013   EL_CHAR('6'),
2014   EL_CHAR('7'),
2015
2016   EL_CHAR('8'),
2017   EL_CHAR('9'),
2018   EL_CHAR(':'),
2019   EL_CHAR(';'),
2020
2021   EL_CHAR('<'),
2022   EL_CHAR('='),
2023   EL_CHAR('>'),
2024   EL_CHAR('?'),
2025
2026   EL_CHAR('@'),
2027   EL_CHAR('A'),
2028   EL_CHAR('B'),
2029   EL_CHAR('C'),
2030
2031   EL_CHAR('D'),
2032   EL_CHAR('E'),
2033   EL_CHAR('F'),
2034   EL_CHAR('G'),
2035
2036   EL_CHAR('H'),
2037   EL_CHAR('I'),
2038   EL_CHAR('J'),
2039   EL_CHAR('K'),
2040
2041   EL_CHAR('L'),
2042   EL_CHAR('M'),
2043   EL_CHAR('N'),
2044   EL_CHAR('O'),
2045
2046   EL_CHAR('P'),
2047   EL_CHAR('Q'),
2048   EL_CHAR('R'),
2049   EL_CHAR('S'),
2050
2051   EL_CHAR('T'),
2052   EL_CHAR('U'),
2053   EL_CHAR('V'),
2054   EL_CHAR('W'),
2055
2056   EL_CHAR('X'),
2057   EL_CHAR('Y'),
2058   EL_CHAR('Z'),
2059   EL_CHAR('['),
2060
2061   EL_CHAR('\\'),
2062   EL_CHAR(']'),
2063   EL_CHAR('^'),
2064   EL_CHAR('_'),
2065
2066   EL_CHAR('©'),
2067   EL_CHAR('Ä'),
2068   EL_CHAR('Ö'),
2069   EL_CHAR('Ü'),
2070
2071   EL_CHAR('°'),
2072   EL_CHAR('®'),
2073   EL_CHAR(FONT_ASCII_CURSOR),
2074   EL_CHAR(' ')
2075 };
2076 static int num_editor_el_chars = SIZEOF_ARRAY_INT(editor_el_chars);
2077
2078 static int editor_el_custom[] =
2079 {
2080   EL_CHAR('C'),
2081   EL_CHAR('U'),
2082   EL_CHAR('S'),
2083   EL_CHAR('-'),
2084
2085   EL_CHAR('T'),
2086   EL_CHAR('O'),
2087   EL_CHAR('M'),
2088   EL_CHAR(' '),
2089
2090   EL_CHAR('E'),
2091   EL_CHAR('L'),
2092   EL_CHAR('E'),
2093   EL_CHAR('M'),
2094
2095   EL_CHAR('E'),
2096   EL_CHAR('N'),
2097   EL_CHAR('T'),
2098   EL_CHAR('S'),
2099
2100   EL_CUSTOM_START + 0,
2101   EL_CUSTOM_START + 1,
2102   EL_CUSTOM_START + 2,
2103   EL_CUSTOM_START + 3,
2104
2105   EL_CUSTOM_START + 4,
2106   EL_CUSTOM_START + 5,
2107   EL_CUSTOM_START + 6,
2108   EL_CUSTOM_START + 7,
2109
2110   EL_CUSTOM_START + 8,
2111   EL_CUSTOM_START + 9,
2112   EL_CUSTOM_START + 10,
2113   EL_CUSTOM_START + 11,
2114
2115   EL_CUSTOM_START + 12,
2116   EL_CUSTOM_START + 13,
2117   EL_CUSTOM_START + 14,
2118   EL_CUSTOM_START + 15,
2119
2120   EL_CUSTOM_START + 16,
2121   EL_CUSTOM_START + 17,
2122   EL_CUSTOM_START + 18,
2123   EL_CUSTOM_START + 19,
2124
2125   EL_CUSTOM_START + 20,
2126   EL_CUSTOM_START + 21,
2127   EL_CUSTOM_START + 22,
2128   EL_CUSTOM_START + 23,
2129
2130   EL_CUSTOM_START + 24,
2131   EL_CUSTOM_START + 25,
2132   EL_CUSTOM_START + 26,
2133   EL_CUSTOM_START + 27,
2134
2135   EL_CUSTOM_START + 28,
2136   EL_CUSTOM_START + 29,
2137   EL_CUSTOM_START + 30,
2138   EL_CUSTOM_START + 31,
2139
2140   EL_CUSTOM_START + 32,
2141   EL_CUSTOM_START + 33,
2142   EL_CUSTOM_START + 34,
2143   EL_CUSTOM_START + 35,
2144
2145   EL_CUSTOM_START + 36,
2146   EL_CUSTOM_START + 37,
2147   EL_CUSTOM_START + 38,
2148   EL_CUSTOM_START + 39,
2149
2150   EL_CUSTOM_START + 40,
2151   EL_CUSTOM_START + 41,
2152   EL_CUSTOM_START + 42,
2153   EL_CUSTOM_START + 43,
2154
2155   EL_CUSTOM_START + 44,
2156   EL_CUSTOM_START + 45,
2157   EL_CUSTOM_START + 46,
2158   EL_CUSTOM_START + 47,
2159
2160   EL_CUSTOM_START + 48,
2161   EL_CUSTOM_START + 49,
2162   EL_CUSTOM_START + 50,
2163   EL_CUSTOM_START + 51,
2164
2165   EL_CUSTOM_START + 52,
2166   EL_CUSTOM_START + 53,
2167   EL_CUSTOM_START + 54,
2168   EL_CUSTOM_START + 55,
2169
2170   EL_CUSTOM_START + 56,
2171   EL_CUSTOM_START + 57,
2172   EL_CUSTOM_START + 58,
2173   EL_CUSTOM_START + 59,
2174
2175   EL_CUSTOM_START + 60,
2176   EL_CUSTOM_START + 61,
2177   EL_CUSTOM_START + 62,
2178   EL_CUSTOM_START + 63,
2179
2180   EL_CUSTOM_START + 64,
2181   EL_CUSTOM_START + 65,
2182   EL_CUSTOM_START + 66,
2183   EL_CUSTOM_START + 67,
2184
2185   EL_CUSTOM_START + 68,
2186   EL_CUSTOM_START + 69,
2187   EL_CUSTOM_START + 70,
2188   EL_CUSTOM_START + 71,
2189
2190   EL_CUSTOM_START + 72,
2191   EL_CUSTOM_START + 73,
2192   EL_CUSTOM_START + 74,
2193   EL_CUSTOM_START + 75,
2194
2195   EL_CUSTOM_START + 76,
2196   EL_CUSTOM_START + 77,
2197   EL_CUSTOM_START + 78,
2198   EL_CUSTOM_START + 79,
2199
2200   EL_CUSTOM_START + 80,
2201   EL_CUSTOM_START + 81,
2202   EL_CUSTOM_START + 82,
2203   EL_CUSTOM_START + 83,
2204
2205   EL_CUSTOM_START + 84,
2206   EL_CUSTOM_START + 85,
2207   EL_CUSTOM_START + 86,
2208   EL_CUSTOM_START + 87,
2209
2210   EL_CUSTOM_START + 88,
2211   EL_CUSTOM_START + 89,
2212   EL_CUSTOM_START + 90,
2213   EL_CUSTOM_START + 91,
2214
2215   EL_CUSTOM_START + 92,
2216   EL_CUSTOM_START + 93,
2217   EL_CUSTOM_START + 94,
2218   EL_CUSTOM_START + 95,
2219
2220   EL_CUSTOM_START + 96,
2221   EL_CUSTOM_START + 97,
2222   EL_CUSTOM_START + 98,
2223   EL_CUSTOM_START + 99,
2224
2225   EL_CUSTOM_START + 100,
2226   EL_CUSTOM_START + 101,
2227   EL_CUSTOM_START + 102,
2228   EL_CUSTOM_START + 103,
2229
2230   EL_CUSTOM_START + 104,
2231   EL_CUSTOM_START + 105,
2232   EL_CUSTOM_START + 106,
2233   EL_CUSTOM_START + 107,
2234
2235   EL_CUSTOM_START + 108,
2236   EL_CUSTOM_START + 109,
2237   EL_CUSTOM_START + 110,
2238   EL_CUSTOM_START + 111,
2239
2240   EL_CUSTOM_START + 112,
2241   EL_CUSTOM_START + 113,
2242   EL_CUSTOM_START + 114,
2243   EL_CUSTOM_START + 115,
2244
2245   EL_CUSTOM_START + 116,
2246   EL_CUSTOM_START + 117,
2247   EL_CUSTOM_START + 118,
2248   EL_CUSTOM_START + 119,
2249
2250   EL_CUSTOM_START + 120,
2251   EL_CUSTOM_START + 121,
2252   EL_CUSTOM_START + 122,
2253   EL_CUSTOM_START + 123,
2254
2255   EL_CUSTOM_START + 124,
2256   EL_CUSTOM_START + 125,
2257   EL_CUSTOM_START + 126,
2258   EL_CUSTOM_START + 127
2259 };
2260 static int num_editor_el_custom = SIZEOF_ARRAY_INT(editor_el_custom);
2261
2262 static int *editor_elements = NULL;     /* dynamically allocated */
2263 static int num_editor_elements = 0;     /* dynamically determined */
2264
2265 static struct
2266 {
2267   boolean *setup_value;
2268   int *element_list;
2269   int *element_list_size;
2270
2271   boolean last_setup_value;
2272 }
2273 editor_elements_info[] =
2274 {
2275   { &setup.editor.el_boulderdash,       editor_el_boulderdash,
2276     &num_editor_el_boulderdash                                          },
2277   { &setup.editor.el_emerald_mine,      editor_el_emerald_mine,
2278     &num_editor_el_emerald_mine                                         },
2279   { &setup.editor.el_more,              editor_el_more,
2280     &num_editor_el_more                                                 },
2281   { &setup.editor.el_sokoban,           editor_el_sokoban,
2282     &num_editor_el_sokoban                                              },
2283   { &setup.editor.el_supaplex,          editor_el_supaplex,
2284     &num_editor_el_supaplex                                             },
2285   { &setup.editor.el_diamond_caves,     editor_el_diamond_caves,
2286     &num_editor_el_diamond_caves                                        },
2287   { &setup.editor.el_dx_boulderdash,    editor_el_dx_boulderdash,
2288     &num_editor_el_dx_boulderdash                                       },
2289   { &setup.editor.el_chars,             editor_el_chars,
2290     &num_editor_el_chars                                                },
2291   { &setup.editor.el_custom,            editor_el_custom,
2292     &num_editor_el_custom                                               },
2293   { NULL,                               NULL,
2294     NULL                                                                }
2295 };
2296
2297
2298 /*
2299   -----------------------------------------------------------------------------
2300   functions
2301   -----------------------------------------------------------------------------
2302 */
2303
2304 static void ReinitializeElementList()
2305 {
2306   int pos = 0;
2307   int i, j;
2308
2309   if (editor_elements != NULL)
2310     free(editor_elements);
2311
2312   num_editor_elements = 0;
2313
2314   /* determine size of element list */
2315   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
2316     if (*editor_elements_info[i].setup_value)
2317       num_editor_elements += *editor_elements_info[i].element_list_size;
2318
2319   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
2320   {
2321     /* workaround: offer at least as many elements as element buttons exist */
2322     int list_nr = 1;    /* see above: editor_elements_info for Emerald Mine */
2323
2324     *editor_elements_info[list_nr].setup_value = TRUE;
2325     num_editor_elements += *editor_elements_info[list_nr].element_list_size;
2326   }
2327
2328   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
2329
2330   /* fill element list */
2331   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
2332     if (*editor_elements_info[i].setup_value)
2333       for (j=0; j<*editor_elements_info[i].element_list_size; j++)
2334         editor_elements[pos++] = editor_elements_info[i].element_list[j];
2335 }
2336
2337 static void ReinitializeElementListButtons()
2338 {
2339   static boolean initialization_needed = TRUE;
2340   int i;
2341
2342   if (!initialization_needed)   /* check if editor element setup has changed */
2343     for (i=0; editor_elements_info[i].setup_value != NULL; i++)
2344       if (editor_elements_info[i].last_setup_value !=
2345           *editor_elements_info[i].setup_value)
2346         initialization_needed = TRUE;
2347
2348   if (!initialization_needed)
2349     return;
2350
2351   FreeLevelEditorGadgets();
2352   CreateLevelEditorGadgets();
2353
2354   /* store current setup values for next invocation of this function */
2355   for (i=0; editor_elements_info[i].setup_value != NULL; i++)
2356     editor_elements_info[i].last_setup_value =
2357       *editor_elements_info[i].setup_value;
2358
2359   initialization_needed = FALSE;
2360 }
2361
2362 static int getCounterGadgetWidth()
2363 {
2364   return (DXSIZE + getFontWidth(FONT_INPUT_1) - 2 * ED_GADGET_DISTANCE);
2365 }
2366
2367 static int getMaxInfoTextLength()
2368 {
2369   return (SXSIZE / getFontWidth(FONT_TEXT_2));
2370 }
2371
2372 static char *getElementInfoText(int element)
2373 {
2374   char *info_text = NULL;
2375
2376   if (element < NUM_FILE_ELEMENTS)
2377   {
2378     if (element_info[element].custom_description != NULL)
2379       info_text = element_info[element].custom_description;
2380     else if (element_info[element].editor_description != NULL)
2381       info_text = element_info[element].editor_description;
2382   }
2383
2384   if (info_text == NULL)
2385   {
2386     info_text = "unknown";
2387
2388     Error(ERR_WARN, "no element description for element %d", element);
2389   }
2390
2391   return info_text;
2392 }
2393
2394 static void ScrollMiniLevel(int from_x, int from_y, int scroll)
2395 {
2396   int x,y;
2397   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
2398   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
2399
2400   BlitBitmap(drawto, drawto,
2401              SX + (dx == -1 ? MINI_TILEX : 0),
2402              SY + (dy == -1 ? MINI_TILEY : 0),
2403              (ed_fieldx * MINI_TILEX) - (dx != 0 ? MINI_TILEX : 0),
2404              (ed_fieldy * MINI_TILEY) - (dy != 0 ? MINI_TILEY : 0),
2405              SX + (dx == +1 ? MINI_TILEX : 0),
2406              SY + (dy == +1 ? MINI_TILEY : 0));
2407   if (dx)
2408   {
2409     x = (dx == 1 ? 0 : ed_fieldx - 1);
2410     for(y=0; y<ed_fieldy; y++)
2411       DrawMiniElementOrWall(x, y, from_x, from_y);
2412   }
2413   else if (dy)
2414   {
2415     y = (dy == 1 ? 0 : ed_fieldy - 1);
2416     for(x=0; x<ed_fieldx; x++)
2417       DrawMiniElementOrWall(x, y, from_x, from_y);
2418   }
2419
2420   redraw_mask |= REDRAW_FIELD;
2421   BackToFront();
2422 }
2423
2424 static void CreateControlButtons()
2425 {
2426   Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2427   struct GadgetInfo *gi;
2428   unsigned long event_mask;
2429   int i;
2430
2431   /* create toolbox buttons */
2432   for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
2433   {
2434     int id = i;
2435     int width, height;
2436     int gd_xoffset, gd_yoffset;
2437     int gd_x1, gd_x2, gd_y1, gd_y2;
2438     int button_type;
2439     int radio_button_nr;
2440     boolean checked;
2441
2442     if (id == GADGET_ID_SINGLE_ITEMS ||
2443         id == GADGET_ID_CONNECTED_ITEMS ||
2444         id == GADGET_ID_LINE ||
2445         id == GADGET_ID_ARC ||
2446         id == GADGET_ID_TEXT ||
2447         id == GADGET_ID_RECTANGLE ||
2448         id == GADGET_ID_FILLED_BOX ||
2449         id == GADGET_ID_FLOOD_FILL ||
2450         id == GADGET_ID_GRAB_BRUSH ||
2451         id == GADGET_ID_PICK_ELEMENT)
2452     {
2453       button_type = GD_TYPE_RADIO_BUTTON;
2454       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
2455       checked = (id == drawing_function ? TRUE : FALSE);
2456       event_mask = GD_EVENT_PRESSED;
2457     }
2458     else
2459     {
2460       button_type = GD_TYPE_NORMAL_BUTTON;
2461       radio_button_nr = RADIO_NR_NONE;
2462       checked = FALSE;
2463
2464       if (id == GADGET_ID_WRAP_LEFT ||
2465           id == GADGET_ID_WRAP_RIGHT ||
2466           id == GADGET_ID_WRAP_UP ||
2467           id == GADGET_ID_WRAP_DOWN)
2468         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
2469       else
2470         event_mask = GD_EVENT_RELEASED;
2471     }
2472
2473     if (id < ED_NUM_CTRL1_BUTTONS)
2474     {
2475       int x = i % ED_CTRL1_BUTTONS_HORIZ;
2476       int y = i / ED_CTRL1_BUTTONS_HORIZ;
2477
2478       gd_xoffset = ED_CTRL1_BUTTONS_XPOS + x * ED_CTRL1_BUTTON_XSIZE;
2479       gd_yoffset = ED_CTRL1_BUTTONS_YPOS + y * ED_CTRL1_BUTTON_YSIZE;
2480       width = ED_CTRL1_BUTTON_XSIZE;
2481       height = ED_CTRL1_BUTTON_YSIZE;
2482     }
2483     else
2484     {
2485       int x = (i - ED_NUM_CTRL1_BUTTONS) % ED_CTRL2_BUTTONS_HORIZ;
2486       int y = (i - ED_NUM_CTRL1_BUTTONS) / ED_CTRL2_BUTTONS_HORIZ;
2487
2488       gd_xoffset = ED_CTRL2_BUTTONS_XPOS + x * ED_CTRL2_BUTTON_XSIZE;
2489       gd_yoffset = ED_CTRL2_BUTTONS_YPOS + y * ED_CTRL2_BUTTON_YSIZE;
2490       width = ED_CTRL2_BUTTON_XSIZE;
2491       height = ED_CTRL2_BUTTON_YSIZE;
2492     }
2493
2494     gd_x1 = DOOR_GFX_PAGEX8 + gd_xoffset;
2495     gd_x2 = DOOR_GFX_PAGEX7 + gd_xoffset;
2496     gd_y1  = DOOR_GFX_PAGEY1 + ED_CTRL_BUTTONS_GFX_YPOS + gd_yoffset;
2497     gd_y2  = DOOR_GFX_PAGEY1 + ED_CTRL_BUTTONS_ALT_GFX_YPOS + gd_yoffset;
2498
2499     gi = CreateGadget(GDI_CUSTOM_ID, id,
2500                       GDI_CUSTOM_TYPE_ID, i,
2501                       GDI_INFO_TEXT, control_info[i].text,
2502                       GDI_X, EX + gd_xoffset,
2503                       GDI_Y, EY + gd_yoffset,
2504                       GDI_WIDTH, width,
2505                       GDI_HEIGHT, height,
2506                       GDI_TYPE, button_type,
2507                       GDI_STATE, GD_BUTTON_UNPRESSED,
2508                       GDI_RADIO_NR, radio_button_nr,
2509                       GDI_CHECKED, checked,
2510                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2511                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y1,
2512                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y2,
2513                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
2514                       GDI_EVENT_MASK, event_mask,
2515                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2516                       GDI_CALLBACK_ACTION, HandleControlButtons,
2517                       GDI_END);
2518
2519     if (gi == NULL)
2520       Error(ERR_EXIT, "cannot create gadget");
2521
2522     level_editor_gadget[id] = gi;
2523   }
2524
2525   /* create buttons for scrolling of drawing area and element list */
2526   for (i=0; i<ED_NUM_SCROLLBUTTONS; i++)
2527   {
2528     int id = scrollbutton_info[i].gadget_id;
2529     int x, y, width, height;
2530     int gd_x1, gd_x2, gd_y1, gd_y2;
2531
2532     x = scrollbutton_info[i].x;
2533     y = scrollbutton_info[i].y;
2534
2535     event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
2536
2537     if (id == GADGET_ID_SCROLL_LIST_UP ||
2538         id == GADGET_ID_SCROLL_LIST_DOWN)
2539     {
2540       x += DX;
2541       y += DY;
2542       width = ED_SCROLLBUTTON2_XSIZE;
2543       height = ED_SCROLLBUTTON2_YSIZE;
2544       gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[i].gd_x;
2545       gd_y1 = DOOR_GFX_PAGEY1 + scrollbutton_info[i].gd_y;
2546       gd_x2 = gd_x1 - ED_SCROLLBUTTON2_XSIZE;
2547       gd_y2 = gd_y1;
2548     }
2549     else
2550     {
2551       x += SX;
2552       y += SY;
2553       width = ED_SCROLLBUTTON_XSIZE;
2554       height = ED_SCROLLBUTTON_YSIZE;
2555       gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[i].gd_x;
2556       gd_y1 = DOOR_GFX_PAGEY1 + scrollbutton_info[i].gd_y;
2557       gd_x2 = gd_x1 - ED_SCROLLBUTTON_XSIZE;
2558       gd_y2 = gd_y1;
2559     }
2560
2561     gi = CreateGadget(GDI_CUSTOM_ID, id,
2562                       GDI_CUSTOM_TYPE_ID, i,
2563                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
2564                       GDI_X, x,
2565                       GDI_Y, y,
2566                       GDI_WIDTH, width,
2567                       GDI_HEIGHT, height,
2568                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
2569                       GDI_STATE, GD_BUTTON_UNPRESSED,
2570                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
2571                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
2572                       GDI_EVENT_MASK, event_mask,
2573                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2574                       GDI_CALLBACK_ACTION, HandleControlButtons,
2575                       GDI_END);
2576
2577     if (gi == NULL)
2578       Error(ERR_EXIT, "cannot create gadget");
2579
2580     level_editor_gadget[id] = gi;
2581   }
2582
2583   /* create buttons for element list */
2584   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
2585   {
2586     Bitmap *deco_bitmap;
2587     int deco_x, deco_y, deco_xpos, deco_ypos;
2588     int gd_xoffset, gd_yoffset;
2589     int gd_x1, gd_x2, gd_y;
2590     int x = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
2591     int y = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
2592     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
2593     int element = editor_elements[i];
2594
2595     event_mask = GD_EVENT_RELEASED;
2596
2597     gd_xoffset = ED_ELEMENTLIST_XPOS + x * ED_ELEMENTLIST_XSIZE;
2598     gd_yoffset = ED_ELEMENTLIST_YPOS + y * ED_ELEMENTLIST_YSIZE;
2599
2600     gd_x1 = DOOR_GFX_PAGEX6 + ED_ELEMENTLIST_XPOS + ED_ELEMENTLIST_XSIZE;
2601     gd_x2 = DOOR_GFX_PAGEX6 + ED_ELEMENTLIST_XPOS;
2602     gd_y  = DOOR_GFX_PAGEY1 + ED_ELEMENTLIST_YPOS;
2603
2604     getMiniGraphicSource(el2edimg(element), &deco_bitmap, &deco_x, &deco_y);
2605     deco_xpos = (ED_ELEMENTLIST_XSIZE - MINI_TILEX) / 2;
2606     deco_ypos = (ED_ELEMENTLIST_YSIZE - MINI_TILEY) / 2;
2607
2608     gi = CreateGadget(GDI_CUSTOM_ID, id,
2609                       GDI_CUSTOM_TYPE_ID, i,
2610                       GDI_INFO_TEXT, getElementInfoText(element),
2611                       GDI_X, DX + gd_xoffset,
2612                       GDI_Y, DY + gd_yoffset,
2613                       GDI_WIDTH, ED_ELEMENTLIST_XSIZE,
2614                       GDI_HEIGHT, ED_ELEMENTLIST_YSIZE,
2615                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
2616                       GDI_STATE, GD_BUTTON_UNPRESSED,
2617                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2618                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2619                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
2620                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
2621                       GDI_DECORATION_SIZE, MINI_TILEX, MINI_TILEY,
2622                       GDI_DECORATION_SHIFTING, 1, 1,
2623                       GDI_EVENT_MASK, event_mask,
2624                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2625                       GDI_CALLBACK_ACTION, HandleControlButtons,
2626                       GDI_END);
2627
2628     if (gi == NULL)
2629       Error(ERR_EXIT, "cannot create gadget");
2630
2631     level_editor_gadget[id] = gi;
2632   }
2633 }
2634
2635 static void CreateCounterButtons()
2636 {
2637   int max_infotext_len = getMaxInfoTextLength();
2638   int i;
2639
2640   for (i=0; i<ED_NUM_COUNTERBUTTONS; i++)
2641   {
2642     int j;
2643     int xpos = SX + counterbutton_info[i].x;    /* xpos of down count button */
2644     int ypos = SY + counterbutton_info[i].y;
2645     int xoffset = 0;
2646
2647     /* determine horizontal offset for leading counter text */
2648     if (counterbutton_info[i].text_left != NULL)
2649       xoffset = (getFontWidth(FONT_TEXT_1) *
2650                  strlen(counterbutton_info[i].text_left) +
2651                  ED_GADGET_TEXT_DISTANCE);
2652
2653     for (j=0; j<2; j++)
2654     {
2655       Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2656       struct GadgetInfo *gi;
2657       int id = (j == 0 ?
2658                 counterbutton_info[i].gadget_id_down :
2659                 counterbutton_info[i].gadget_id_up);
2660       int gd_xoffset;
2661       int gd_x, gd_x1, gd_x2, gd_y;
2662       int x_size, y_size;
2663       unsigned long event_mask;
2664       char infotext[max_infotext_len + 1];
2665
2666       event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
2667
2668       if (i == ED_COUNTER_ID_SELECT_LEVEL)
2669       {
2670         int sid = (j == 0 ?
2671                    ED_SCROLLBUTTON_ID_AREA_LEFT :
2672                    ED_SCROLLBUTTON_ID_AREA_RIGHT);
2673
2674         event_mask |= GD_EVENT_RELEASED;
2675
2676         if (j == 1)
2677           xpos += 2 * ED_GADGET_DISTANCE;
2678         ypos += ED_GADGET_DISTANCE;
2679
2680         gd_x1 = DOOR_GFX_PAGEX8 + scrollbutton_info[sid].gd_x;
2681         gd_x2 = gd_x1 - ED_SCROLLBUTTON_XSIZE;
2682         gd_y  = DOOR_GFX_PAGEY1 + scrollbutton_info[sid].gd_y;
2683         x_size = ED_SCROLLBUTTON_XSIZE;
2684         y_size = ED_SCROLLBUTTON_YSIZE;
2685       }
2686       else
2687       {
2688         gd_xoffset = (j == 0 ? ED_BUTTON_MINUS_XPOS : ED_BUTTON_PLUS_XPOS);
2689         gd_x1 = DOOR_GFX_PAGEX4 + gd_xoffset;
2690         gd_x2 = DOOR_GFX_PAGEX3 + gd_xoffset;
2691         gd_y  = DOOR_GFX_PAGEY1 + ED_BUTTON_COUNT_YPOS;
2692         x_size = ED_BUTTON_COUNT_XSIZE;
2693         y_size = ED_BUTTON_COUNT_YSIZE;
2694       }
2695
2696       sprintf(infotext, "%s counter value by 1, 5 or 10",
2697               (j == 0 ? "decrease" : "increase"));
2698
2699       gi = CreateGadget(GDI_CUSTOM_ID, id,
2700                         GDI_CUSTOM_TYPE_ID, i,
2701                         GDI_INFO_TEXT, infotext,
2702                         GDI_X, xpos + xoffset,
2703                         GDI_Y, ypos,
2704                         GDI_WIDTH, x_size,
2705                         GDI_HEIGHT, y_size,
2706                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
2707                         GDI_STATE, GD_BUTTON_UNPRESSED,
2708                         GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2709                         GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2710                         GDI_EVENT_MASK, event_mask,
2711                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2712                         GDI_CALLBACK_ACTION, HandleCounterButtons,
2713                         GDI_END);
2714
2715       if (gi == NULL)
2716         Error(ERR_EXIT, "cannot create gadget");
2717
2718       level_editor_gadget[id] = gi;
2719       xpos += gi->width + ED_GADGET_DISTANCE;   /* xpos of text count button */
2720
2721       if (j == 0)
2722       {
2723         int font_type = FONT_INPUT_1;
2724         int font_type_active = FONT_INPUT_1_ACTIVE;
2725         int gd_width = ED_WIN_COUNT_XSIZE;
2726
2727         id = counterbutton_info[i].gadget_id_text;
2728         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
2729
2730         if (i == ED_COUNTER_ID_SELECT_LEVEL)
2731         {
2732           font_type = FONT_LEVEL_NUMBER;
2733           font_type_active = FONT_LEVEL_NUMBER;
2734
2735           xpos += 2 * ED_GADGET_DISTANCE;
2736           ypos -= ED_GADGET_DISTANCE;
2737
2738           gd_x = DOOR_GFX_PAGEX6 + ED_WIN_COUNT2_XPOS;
2739           gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT2_YPOS;
2740           gd_width = ED_WIN_COUNT2_XSIZE;
2741         }
2742         else
2743         {
2744           gd_x = DOOR_GFX_PAGEX4 + ED_WIN_COUNT_XPOS;
2745           gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT_YPOS;
2746         }
2747
2748         gi = CreateGadget(GDI_CUSTOM_ID, id,
2749                           GDI_CUSTOM_TYPE_ID, i,
2750                           GDI_INFO_TEXT, "enter counter value",
2751                           GDI_X, xpos + xoffset,
2752                           GDI_Y, ypos,
2753                           GDI_TYPE, GD_TYPE_TEXTINPUT_NUMERIC,
2754                           GDI_NUMBER_VALUE, 0,
2755                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
2756                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
2757                           GDI_TEXT_SIZE, 3,
2758                           GDI_TEXT_FONT, font_type,
2759                           GDI_TEXT_FONT_ACTIVE, font_type_active,
2760                           GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
2761                           GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
2762                           GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
2763                           GDI_DESIGN_WIDTH, gd_width,
2764                           GDI_EVENT_MASK, event_mask,
2765                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
2766                           GDI_CALLBACK_ACTION, HandleCounterButtons,
2767                           GDI_END);
2768
2769         if (gi == NULL)
2770           Error(ERR_EXIT, "cannot create gadget");
2771
2772         level_editor_gadget[id] = gi;
2773         xpos += gi->width + ED_GADGET_DISTANCE; /* xpos of up count button */
2774       }
2775     }
2776   }
2777 }
2778
2779 static void CreateDrawingAreas()
2780 {
2781   struct GadgetInfo *gi;
2782   unsigned long event_mask;
2783   int id;
2784   int i;
2785
2786   event_mask =
2787     GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
2788     GD_EVENT_OFF_BORDERS;
2789
2790   /* one for the level drawing area ... */
2791   id = GADGET_ID_DRAWING_LEVEL;
2792   gi = CreateGadget(GDI_CUSTOM_ID, id,
2793                     GDI_X, SX,
2794                     GDI_Y, SY,
2795                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2796                     GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
2797                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2798                     GDI_EVENT_MASK, event_mask,
2799                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2800                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2801                     GDI_END);
2802
2803   if (gi == NULL)
2804     Error(ERR_EXIT, "cannot create gadget");
2805
2806   level_editor_gadget[id] = gi;
2807
2808   /* ... up to eight areas for element content ... */
2809   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
2810   {
2811     int gx = SX + ED_AREA_ELEM_CONTENT_XPOS + 5 * (i % 4) * MINI_TILEX;
2812     int gy = SX + ED_AREA_ELEM_CONTENT_YPOS + 6 * (i / 4) * MINI_TILEY;
2813
2814     id = GADGET_ID_ELEMENT_CONTENT_0 + i;
2815     gi = CreateGadget(GDI_CUSTOM_ID, id,
2816                       GDI_CUSTOM_TYPE_ID, i,
2817                       GDI_X, gx,
2818                       GDI_Y, gy,
2819                       GDI_WIDTH, 3 * MINI_TILEX,
2820                       GDI_HEIGHT, 3 * MINI_TILEY,
2821                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
2822                       GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2823                       GDI_EVENT_MASK, event_mask,
2824                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2825                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
2826                       GDI_END);
2827
2828     if (gi == NULL)
2829       Error(ERR_EXIT, "cannot create gadget");
2830
2831     level_editor_gadget[id] = gi;
2832   }
2833
2834   /* ... one for the amoeba content ... */
2835   id = GADGET_ID_AMOEBA_CONTENT;
2836   gi = CreateGadget(GDI_CUSTOM_ID, id,
2837                     GDI_X, SX + ED_AREA_ELEM_CONTENT_XPOS,
2838                     GDI_Y, SY + ED_AREA_ELEM_CONTENT_YPOS,
2839                     GDI_WIDTH, MINI_TILEX,
2840                     GDI_HEIGHT, MINI_TILEY,
2841                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2842                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2843                     GDI_EVENT_MASK, event_mask,
2844                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2845                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2846                     GDI_END);
2847
2848   if (gi == NULL)
2849     Error(ERR_EXIT, "cannot create gadget");
2850
2851   level_editor_gadget[id] = gi;
2852
2853   /* ... one for each custom element optional graphic element ... */
2854   id = GADGET_ID_CUSTOM_GRAPHIC;
2855   gi = CreateGadget(GDI_CUSTOM_ID, id,
2856                     GDI_X, SX + ED_AREA_ELEM_CONTENT3_XPOS,
2857                     GDI_Y, SY + ED_AREA_ELEM_CONTENT3_YPOS,
2858                     GDI_WIDTH, MINI_TILEX,
2859                     GDI_HEIGHT, MINI_TILEY,
2860                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2861                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2862                     GDI_EVENT_MASK, event_mask,
2863                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2864                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2865                     GDI_END);
2866
2867   if (gi == NULL)
2868     Error(ERR_EXIT, "cannot create gadget");
2869
2870   level_editor_gadget[id] = gi;
2871
2872   /* ... one area for custom element explosion content ... */
2873   id = GADGET_ID_CUSTOM_CONTENT;
2874   gi = CreateGadget(GDI_CUSTOM_ID, id,
2875                     GDI_CUSTOM_TYPE_ID, i,
2876                     GDI_X, SX + ED_AREA_ELEM_CONTENT4_XPOS,
2877                     GDI_Y, SX + ED_AREA_ELEM_CONTENT4_YPOS,
2878                     GDI_WIDTH, 3 * MINI_TILEX,
2879                     GDI_HEIGHT, 3 * MINI_TILEY,
2880                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2881                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2882                     GDI_EVENT_MASK, event_mask,
2883                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2884                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2885                     GDI_END);
2886
2887   if (gi == NULL)
2888     Error(ERR_EXIT, "cannot create gadget");
2889
2890   level_editor_gadget[id] = gi;
2891
2892   /* ... one for each custom element change target element ... */
2893   id = GADGET_ID_CUSTOM_CHANGE_TARGET;
2894   gi = CreateGadget(GDI_CUSTOM_ID, id,
2895                     GDI_X, SX + ED_AREA_ELEM_CONTENT2_XPOS,
2896                     GDI_Y, SY + ED_AREA_ELEM_CONTENT2_YPOS,
2897                     GDI_WIDTH, MINI_TILEX,
2898                     GDI_HEIGHT, MINI_TILEY,
2899                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2900                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2901                     GDI_EVENT_MASK, event_mask,
2902                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2903                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2904                     GDI_END);
2905
2906   if (gi == NULL)
2907     Error(ERR_EXIT, "cannot create gadget");
2908
2909   level_editor_gadget[id] = gi;
2910
2911   /* ... one area for extended custom element change target content ... */
2912   id = GADGET_ID_CUSTOM_CHANGE_CONTENT;
2913   gi = CreateGadget(GDI_CUSTOM_ID, id,
2914                     GDI_CUSTOM_TYPE_ID, i,
2915                     GDI_X, SX + ED_AREA_ELEM_CONTENT6_XPOS,
2916                     GDI_Y, SX + ED_AREA_ELEM_CONTENT6_YPOS,
2917                     GDI_WIDTH, 3 * MINI_TILEX,
2918                     GDI_HEIGHT, 3 * MINI_TILEY,
2919                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2920                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2921                     GDI_EVENT_MASK, event_mask,
2922                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2923                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2924                     GDI_END);
2925
2926   if (gi == NULL)
2927     Error(ERR_EXIT, "cannot create gadget");
2928
2929   level_editor_gadget[id] = gi;
2930
2931   /* ... one for each custom element change trigger element ... */
2932   id = GADGET_ID_CUSTOM_CHANGE_TRIGGER;
2933   gi = CreateGadget(GDI_CUSTOM_ID, id,
2934                     GDI_X, SX + ED_AREA_ELEM_CONTENT5_XPOS,
2935                     GDI_Y, SY + ED_AREA_ELEM_CONTENT5_YPOS,
2936                     GDI_WIDTH, MINI_TILEX,
2937                     GDI_HEIGHT, MINI_TILEY,
2938                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2939                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2940                     GDI_EVENT_MASK, event_mask,
2941                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2942                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2943                     GDI_END);
2944
2945   if (gi == NULL)
2946     Error(ERR_EXIT, "cannot create gadget");
2947
2948   level_editor_gadget[id] = gi;
2949
2950   /* ... and one for random placement background restrictions */
2951   id = GADGET_ID_RANDOM_BACKGROUND;
2952   gi = CreateGadget(GDI_CUSTOM_ID, id,
2953                     GDI_X, SX + ED_AREA_RANDOM_BACKGROUND_XPOS,
2954                     GDI_Y, SY + ED_AREA_RANDOM_BACKGROUND_YPOS,
2955                     GDI_WIDTH, MINI_TILEX,
2956                     GDI_HEIGHT, MINI_TILEY,
2957                     GDI_TYPE, GD_TYPE_DRAWING_AREA,
2958                     GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
2959                     GDI_EVENT_MASK, event_mask,
2960                     GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
2961                     GDI_CALLBACK_ACTION, HandleDrawingAreas,
2962                     GDI_END);
2963
2964   if (gi == NULL)
2965     Error(ERR_EXIT, "cannot create gadget");
2966
2967   level_editor_gadget[id] = gi;
2968 }
2969
2970 static void CreateTextInputGadgets()
2971 {
2972   int max_infotext_len = getMaxInfoTextLength();
2973   int i;
2974
2975   for (i=0; i<ED_NUM_TEXTINPUT; i++)
2976   {
2977     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
2978     int gd_x, gd_y;
2979     struct GadgetInfo *gi;
2980     unsigned long event_mask;
2981     char infotext[MAX_OUTPUT_LINESIZE + 1];
2982     int id = textinput_info[i].gadget_id;
2983
2984     event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
2985
2986     gd_x = DOOR_GFX_PAGEX4 + ED_WIN_COUNT_XPOS;
2987     gd_y = DOOR_GFX_PAGEY1 + ED_WIN_COUNT_YPOS;
2988
2989     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
2990     infotext[max_infotext_len] = '\0';
2991
2992     gi = CreateGadget(GDI_CUSTOM_ID, id,
2993                       GDI_CUSTOM_TYPE_ID, i,
2994                       GDI_INFO_TEXT, infotext,
2995                       GDI_X, SX + textinput_info[i].x,
2996                       GDI_Y, SY + textinput_info[i].y,
2997                       GDI_TYPE, GD_TYPE_TEXTINPUT_ALPHANUMERIC,
2998                       GDI_TEXT_VALUE, textinput_info[i].value,
2999                       GDI_TEXT_SIZE, textinput_info[i].size,
3000                       GDI_TEXT_FONT, FONT_INPUT_1,
3001                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
3002                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
3003                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
3004                       GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
3005                       GDI_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
3006                       GDI_EVENT_MASK, event_mask,
3007                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
3008                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
3009                       GDI_END);
3010
3011     if (gi == NULL)
3012       Error(ERR_EXIT, "cannot create gadget");
3013
3014     level_editor_gadget[id] = gi;
3015   }
3016 }
3017
3018 static void CreateSelectboxGadgets()
3019 {
3020   int max_infotext_len = getMaxInfoTextLength();
3021   int i, j;
3022
3023   for (i=0; i<ED_NUM_SELECTBOX; i++)
3024   {
3025     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
3026     int gd_x, gd_y;
3027     int xoffset = 0;
3028     struct GadgetInfo *gi;
3029     unsigned long event_mask;
3030     char infotext[MAX_OUTPUT_LINESIZE + 1];
3031     int id = selectbox_info[i].gadget_id;
3032
3033     if (selectbox_info[i].size == -1)   /* dynamically determine size */
3034     {
3035       /* (we cannot use -1 for uninitialized values if we directly compare
3036          with results from strlen(), because the '<' and '>' operation will
3037          implicitely cast -1 to an unsigned integer value!) */
3038       selectbox_info[i].size = 0;
3039
3040       for (j=0; selectbox_info[i].options[j].text != NULL; j++)
3041         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
3042           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
3043
3044       selectbox_info[i].size++;         /* add one character empty space */
3045     }
3046
3047     event_mask = GD_EVENT_RELEASED |
3048       GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
3049
3050     gd_x = DOOR_GFX_PAGEX4 + ED_SELECTBOX_XPOS;
3051     gd_y = DOOR_GFX_PAGEY1 + ED_SELECTBOX_YPOS;
3052
3053     /* determine horizontal offset for leading selectbox text */
3054     if (selectbox_info[i].text_left != NULL)
3055       xoffset = (getFontWidth(FONT_TEXT_1) *
3056                  strlen(selectbox_info[i].text_left) +
3057                  ED_GADGET_TEXT_DISTANCE);
3058
3059     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
3060     infotext[max_infotext_len] = '\0';
3061
3062     gi = CreateGadget(GDI_CUSTOM_ID, id,
3063                       GDI_CUSTOM_TYPE_ID, i,
3064                       GDI_INFO_TEXT, infotext,
3065                       GDI_X, SX + selectbox_info[i].x + xoffset,
3066                       GDI_Y, SY + selectbox_info[i].y,
3067                       GDI_TYPE, GD_TYPE_SELECTBOX,
3068                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
3069                       GDI_TEXT_SIZE, selectbox_info[i].size,
3070                       GDI_TEXT_FONT, FONT_INPUT_1,
3071                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
3072                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x, gd_y,
3073                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x, gd_y,
3074                       GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
3075                       GDI_BORDER_SIZE_SELECTBUTTON, getFontWidth(FONT_INPUT_1),
3076                       GDI_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
3077                       GDI_EVENT_MASK, event_mask,
3078                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
3079                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
3080                       GDI_END);
3081
3082     if (gi == NULL)
3083       Error(ERR_EXIT, "cannot create gadget");
3084
3085     level_editor_gadget[id] = gi;
3086   }
3087 }
3088
3089 static void CreateTextbuttonGadgets()
3090 {
3091   int max_infotext_len = getMaxInfoTextLength();
3092   int i;
3093
3094   for (i=0; i<ED_NUM_TEXTBUTTON; i++)
3095   {
3096     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
3097     int gd_x1, gd_x2, gd_y1, gd_y2;
3098     struct GadgetInfo *gi;
3099     unsigned long event_mask;
3100     char infotext[MAX_OUTPUT_LINESIZE + 1];
3101     int id = textbutton_info[i].gadget_id;
3102
3103     if (textbutton_info[i].size == -1)  /* dynamically determine size */
3104       textbutton_info[i].size = strlen(textbutton_info[i].text);
3105
3106     event_mask = GD_EVENT_RELEASED;
3107
3108     if (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_ADVANCED)
3109     {
3110       gd_x1 = DOOR_GFX_PAGEX4 + ED_TEXTBUTTON_TAB_XPOS;
3111       gd_x2 = DOOR_GFX_PAGEX3 + ED_TEXTBUTTON_TAB_XPOS;
3112       gd_y1 = DOOR_GFX_PAGEY1 + ED_TEXTBUTTON_TAB_YPOS;
3113       gd_y2 = DOOR_GFX_PAGEY1 + ED_TEXTBUTTON_TAB_INACTIVE_YPOS;
3114     }
3115     else
3116     {
3117       gd_x1 = DOOR_GFX_PAGEX4 + ED_TEXTBUTTON_XPOS;
3118       gd_x2 = DOOR_GFX_PAGEX3 + ED_TEXTBUTTON_XPOS;
3119       gd_y1 = DOOR_GFX_PAGEY1 + ED_TEXTBUTTON_YPOS;
3120       gd_y2 = DOOR_GFX_PAGEY1 + ED_TEXTBUTTON_INACTIVE_YPOS;
3121     }
3122
3123     sprintf(infotext, "%s", textbutton_info[i].infotext);
3124     infotext[max_infotext_len] = '\0';
3125
3126     gi = CreateGadget(GDI_CUSTOM_ID, id,
3127                       GDI_CUSTOM_TYPE_ID, i,
3128                       GDI_INFO_TEXT, infotext,
3129                       GDI_X, SX + textbutton_info[i].x,
3130                       GDI_Y, SY + textbutton_info[i].y,
3131                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
3132                       GDI_TEXT_VALUE, textbutton_info[i].text,
3133                       GDI_TEXT_SIZE, textbutton_info[i].size,
3134                       GDI_TEXT_FONT, FONT_INPUT_2_ACTIVE,
3135                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2,
3136                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
3137                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y1,
3138                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y2,
3139                       GDI_BORDER_SIZE, ED_BORDER2_SIZE, ED_BORDER_SIZE,
3140                       GDI_DESIGN_WIDTH, ED_WIN_COUNT_XSIZE,
3141                       GDI_DECORATION_SHIFTING, 1, 1,
3142                       GDI_EVENT_MASK, event_mask,
3143                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
3144                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
3145                       GDI_END);
3146
3147     if (gi == NULL)
3148       Error(ERR_EXIT, "cannot create gadget");
3149
3150     level_editor_gadget[id] = gi;
3151   }
3152 }
3153
3154 static void CreateScrollbarGadgets()
3155 {
3156   int i;
3157
3158   for (i=0; i<ED_NUM_SCROLLBARS; i++)
3159   {
3160     int id = scrollbar_info[i].gadget_id;
3161     Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
3162     int gd_x1, gd_x2, gd_y1, gd_y2;
3163     struct GadgetInfo *gi;
3164     int items_max, items_visible, item_position;
3165     unsigned long event_mask;
3166
3167     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
3168     {
3169       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
3170       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
3171       item_position = 0;
3172     }
3173     else        /* drawing area scrollbars */
3174     {
3175       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
3176       {
3177         items_max = MAX(lev_fieldx + 2, ed_fieldx);
3178         items_visible = ed_fieldx;
3179         item_position = 0;
3180       }
3181       else
3182       {
3183         items_max = MAX(lev_fieldy + 2, ed_fieldy);
3184         items_visible = ed_fieldy;
3185         item_position = 0;
3186       }
3187     }
3188
3189     event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
3190
3191     gd_x1 = DOOR_GFX_PAGEX8 + scrollbar_info[i].gd_x;
3192     gd_x2 = (gd_x1 - (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL ?
3193                       scrollbar_info[i].height : scrollbar_info[i].width));
3194     gd_y1 = DOOR_GFX_PAGEY1 + scrollbar_info[i].gd_y;
3195     gd_y2 = DOOR_GFX_PAGEY1 + scrollbar_info[i].gd_y;
3196
3197     gi = CreateGadget(GDI_CUSTOM_ID, id,
3198                       GDI_CUSTOM_TYPE_ID, i,
3199                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
3200                       GDI_X, scrollbar_info[i].x,
3201                       GDI_Y, scrollbar_info[i].y,
3202                       GDI_WIDTH, scrollbar_info[i].width,
3203                       GDI_HEIGHT, scrollbar_info[i].height,
3204                       GDI_TYPE, scrollbar_info[i].type,
3205                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
3206                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
3207                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
3208                       GDI_STATE, GD_BUTTON_UNPRESSED,
3209                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
3210                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
3211                       GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
3212                       GDI_EVENT_MASK, event_mask,
3213                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
3214                       GDI_CALLBACK_ACTION, HandleControlButtons,
3215                       GDI_END);
3216
3217     if (gi == NULL)
3218       Error(ERR_EXIT, "cannot create gadget");
3219
3220     level_editor_gadget[id] = gi;
3221   }
3222 }
3223
3224 static void CreateCheckbuttonGadgets()
3225 {
3226   Bitmap *gd_bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
3227   struct GadgetInfo *gi;
3228   unsigned long event_mask;
3229   int gd_x1, gd_x2, gd_x3, gd_x4, gd_y;
3230   boolean checked;
3231   int i;
3232
3233   event_mask = GD_EVENT_PRESSED;
3234
3235   gd_x1 = DOOR_GFX_PAGEX4 + ED_CHECKBUTTON_UNCHECKED_XPOS;
3236   gd_x2 = DOOR_GFX_PAGEX3 + ED_CHECKBUTTON_UNCHECKED_XPOS;
3237   gd_x3 = DOOR_GFX_PAGEX4 + ED_CHECKBUTTON_CHECKED_XPOS;
3238   gd_x4 = DOOR_GFX_PAGEX3 + ED_CHECKBUTTON_CHECKED_XPOS;
3239   gd_y  = DOOR_GFX_PAGEY1 + ED_RADIOBUTTON_YPOS;
3240
3241   for (i=0; i<ED_NUM_RADIOBUTTONS; i++)
3242   {
3243     int id = radiobutton_info[i].gadget_id;
3244
3245     checked =
3246       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
3247
3248     gi = CreateGadget(GDI_CUSTOM_ID, id,
3249                       GDI_CUSTOM_TYPE_ID, i,
3250                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
3251                       GDI_X, SX + radiobutton_info[i].x,
3252                       GDI_Y, SY + radiobutton_info[i].y,
3253                       GDI_WIDTH, ED_CHECKBUTTON_XSIZE,
3254                       GDI_HEIGHT, ED_CHECKBUTTON_YSIZE,
3255                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
3256                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
3257                       GDI_CHECKED, checked,
3258                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
3259                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
3260                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x3, gd_y,
3261                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x4, gd_y,
3262                       GDI_EVENT_MASK, event_mask,
3263                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
3264                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
3265                       GDI_END);
3266
3267     if (gi == NULL)
3268       Error(ERR_EXIT, "cannot create gadget");
3269
3270     level_editor_gadget[id] = gi;
3271   }
3272
3273   for (i=0; i<ED_NUM_CHECKBUTTONS; i++)
3274   {
3275     int id = checkbutton_info[i].gadget_id;
3276
3277     if (id == GADGET_ID_STICK_ELEMENT)
3278       gd_y  = DOOR_GFX_PAGEY1 + ED_STICKYBUTTON_YPOS;
3279     else
3280       gd_y  = DOOR_GFX_PAGEY1 + ED_CHECKBUTTON_YPOS;
3281
3282     gi = CreateGadget(GDI_CUSTOM_ID, id,
3283                       GDI_CUSTOM_TYPE_ID, i,
3284                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
3285                       GDI_X, SX + checkbutton_info[i].x,
3286                       GDI_Y, SY + checkbutton_info[i].y,
3287                       GDI_WIDTH, ED_CHECKBUTTON_XSIZE,
3288                       GDI_HEIGHT, ED_CHECKBUTTON_YSIZE,
3289                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
3290                       GDI_CHECKED, *checkbutton_info[i].value,
3291                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
3292                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
3293                       GDI_ALT_DESIGN_UNPRESSED, gd_bitmap, gd_x3, gd_y,
3294                       GDI_ALT_DESIGN_PRESSED, gd_bitmap, gd_x4, gd_y,
3295                       GDI_EVENT_MASK, event_mask,
3296                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
3297                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
3298                       GDI_END);
3299
3300     if (gi == NULL)
3301       Error(ERR_EXIT, "cannot create gadget");
3302
3303     level_editor_gadget[id] = gi;
3304   }
3305 }
3306
3307 void CreateLevelEditorGadgets()
3308 {
3309   int old_game_status = game_status;
3310
3311   /* setting 'game_status' is needed to get the right fonts for the editor */
3312   game_status = GAME_MODE_EDITOR;
3313
3314   ReinitializeElementList();
3315
3316   CreateControlButtons();
3317   CreateCounterButtons();
3318   CreateDrawingAreas();
3319   CreateTextInputGadgets();
3320   CreateSelectboxGadgets();
3321   CreateTextbuttonGadgets();
3322   CreateScrollbarGadgets();
3323   CreateCheckbuttonGadgets();
3324
3325   game_status = old_game_status;
3326 }
3327
3328 void FreeLevelEditorGadgets()
3329 {
3330   int i;
3331
3332   for (i=0; i<NUM_EDITOR_GADGETS; i++)
3333     FreeGadget(level_editor_gadget[i]);
3334 }
3335
3336 static void MapCounterButtons(int id)
3337 {
3338   char infotext[MAX_OUTPUT_LINESIZE + 1];
3339   int max_infotext_len = getMaxInfoTextLength();
3340   int xoffset_above = 0;
3341   int yoffset_above = -(MINI_TILEX + ED_GADGET_DISTANCE);
3342   int xoffset_left = 0;
3343   int yoffset_left = ED_BORDER_SIZE;
3344   int xoffset_right = getCounterGadgetWidth();
3345   int yoffset_right = ED_BORDER_SIZE;
3346   int x, y;
3347
3348   if (counterbutton_info[id].text_above)
3349   {
3350     x = SX + counterbutton_info[id].x + xoffset_above;
3351     y = SY + counterbutton_info[id].y + yoffset_above;
3352
3353     sprintf(infotext, "%s:", counterbutton_info[id].text_above);
3354     infotext[max_infotext_len] = '\0';
3355     DrawText(x, y, infotext, FONT_TEXT_1);
3356   }
3357
3358   if (counterbutton_info[id].text_left)
3359   {
3360     x = SX + counterbutton_info[id].x + xoffset_left;
3361     y = SY + counterbutton_info[id].y + yoffset_left;
3362
3363     sprintf(infotext, "%s", counterbutton_info[id].text_left);
3364     infotext[max_infotext_len] = '\0';
3365     DrawText(x, y, infotext, FONT_TEXT_1);
3366   }
3367
3368   if (counterbutton_info[id].text_right)
3369   {
3370     int gadget_id = counterbutton_info[id].gadget_id_down;
3371
3372     x = level_editor_gadget[gadget_id]->x + xoffset_right;
3373     y = SY + counterbutton_info[id].y + yoffset_right;
3374
3375     sprintf(infotext, "%s", counterbutton_info[id].text_right);
3376     infotext[max_infotext_len] = '\0';
3377     DrawText(x, y, infotext, FONT_TEXT_1);
3378   }
3379
3380   ModifyEditorCounter(id, *counterbutton_info[id].value);
3381
3382   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_down]);
3383   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_text]);
3384   MapGadget(level_editor_gadget[counterbutton_info[id].gadget_id_up]);
3385 }
3386
3387 static void MapControlButtons()
3388 {
3389   int counter_id;
3390   int i;
3391
3392   /* map toolbox buttons */
3393   for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
3394     MapGadget(level_editor_gadget[i]);
3395
3396   /* map buttons to select elements */
3397   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
3398     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
3399   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
3400   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
3401   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
3402
3403   /* map buttons to select level */
3404   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
3405   ModifyEditorCounterLimits(counter_id,
3406                             leveldir_current->first_level,
3407                             leveldir_current->last_level);
3408   MapCounterButtons(counter_id);
3409 }
3410
3411 static void MapDrawingArea(int id)
3412 {
3413   MapGadget(level_editor_gadget[id]);
3414 }
3415
3416 static void MapTextInputGadget(int id)
3417 {
3418   char infotext[MAX_OUTPUT_LINESIZE + 1];
3419   int max_infotext_len = getMaxInfoTextLength();
3420   int xoffset_above = 0;
3421   int yoffset_above = -(MINI_TILEX + ED_GADGET_DISTANCE);
3422   int x = textinput_info[id].x + xoffset_above;
3423   int y = textinput_info[id].y + yoffset_above;
3424
3425   sprintf(infotext, "%s:", textinput_info[id].infotext);
3426   infotext[max_infotext_len] = '\0';
3427   DrawTextF(x, y, FONT_TEXT_1, infotext);
3428
3429   ModifyGadget(level_editor_gadget[textinput_info[id].gadget_id],
3430                GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
3431
3432   MapGadget(level_editor_gadget[textinput_info[id].gadget_id]);
3433 }
3434
3435 static void MapSelectboxGadget(int id)
3436 {
3437   int xoffset_left = 0;
3438   int yoffset_left = ED_BORDER_SIZE;
3439   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
3440   int yoffset_right = ED_BORDER_SIZE;
3441   int x = selectbox_info[id].x + xoffset_left;
3442   int y = selectbox_info[id].y + yoffset_left;
3443
3444   DrawTextF(x, y, FONT_TEXT_1, selectbox_info[id].text_left);
3445
3446   if (selectbox_info[id].text_right)
3447   {
3448     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
3449
3450     x = gi->x + gi->width + xoffset_right;
3451     y = SY + selectbox_info[id].y + yoffset_right;
3452
3453     DrawText(x, y, selectbox_info[id].text_right, FONT_TEXT_1);
3454   }
3455
3456   ModifyEditorSelectbox(id, *selectbox_info[id].value);
3457
3458   MapGadget(level_editor_gadget[selectbox_info[id].gadget_id]);
3459 }
3460
3461 static void MapTextbuttonGadget(int id)
3462 {
3463   MapGadget(level_editor_gadget[textbutton_info[id].gadget_id]);
3464 }
3465
3466 static void MapRadiobuttonGadget(int id)
3467 {
3468   int xoffset_right = ED_XOFFSET_CHECKBOX;
3469   int yoffset_right = ED_BORDER_SIZE;
3470   int x = radiobutton_info[id].x + xoffset_right;
3471   int y = radiobutton_info[id].y + yoffset_right;
3472   boolean checked =
3473     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
3474
3475   DrawTextF(x, y, FONT_TEXT_1, radiobutton_info[id].text_right);
3476   ModifyGadget(level_editor_gadget[radiobutton_info[id].gadget_id],
3477                GDI_CHECKED, checked, GDI_END);
3478
3479   MapGadget(level_editor_gadget[radiobutton_info[id].gadget_id]);
3480 }
3481
3482 static void MapCheckbuttonGadget(int id)
3483 {
3484   int xoffset_right = ED_XOFFSET_CHECKBOX;
3485   int yoffset_right = ED_BORDER_SIZE;
3486   int x = checkbutton_info[id].x + xoffset_right;
3487   int y = checkbutton_info[id].y + yoffset_right;
3488
3489   DrawTextF(x, y, FONT_TEXT_1, checkbutton_info[id].text_right);
3490   ModifyGadget(level_editor_gadget[checkbutton_info[id].gadget_id],
3491                GDI_CHECKED, *checkbutton_info[id].value,
3492                GDI_Y, SY + checkbutton_info[id].y, GDI_END);
3493
3494   MapGadget(level_editor_gadget[checkbutton_info[id].gadget_id]);
3495 }
3496
3497 static void MapMainDrawingArea()
3498 {
3499   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
3500   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
3501   int i;
3502
3503   for (i=ED_SCROLLBUTTON_ID_AREA_FIRST; i<=ED_SCROLLBUTTON_ID_AREA_LAST; i++)
3504   {
3505     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
3506           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
3507          no_horizontal_scrollbar) ||
3508         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
3509           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
3510          no_vertical_scrollbar))
3511       continue;
3512
3513     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
3514   }
3515
3516   for (i=ED_SCROLLBAR_ID_AREA_FIRST; i<=ED_SCROLLBAR_ID_AREA_LAST; i++)
3517   {
3518     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
3519         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
3520       continue;
3521
3522     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
3523   }
3524
3525   MapDrawingArea(GADGET_ID_DRAWING_LEVEL);
3526 }
3527
3528 static void UnmapDrawingArea(int id)
3529 {
3530   UnmapGadget(level_editor_gadget[id]);
3531 }
3532
3533 void UnmapLevelEditorWindowGadgets()
3534 {
3535   int i;
3536
3537   for (i=0; i<NUM_EDITOR_GADGETS; i++)
3538     if (level_editor_gadget[i]->x < SX + SXSIZE)
3539       UnmapGadget(level_editor_gadget[i]);
3540 }
3541
3542 void UnmapLevelEditorGadgets()
3543 {
3544   int i;
3545
3546   for (i=0; i<NUM_EDITOR_GADGETS; i++)
3547     UnmapGadget(level_editor_gadget[i]);
3548 }
3549
3550 static void ResetUndoBuffer()
3551 {
3552   undo_buffer_position = -1;
3553   undo_buffer_steps = -1;
3554   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
3555 }
3556
3557 static void DrawEditModeWindow()
3558 {
3559   if (edit_mode == ED_MODE_INFO)
3560     DrawLevelInfoWindow();
3561   else if (edit_mode == ED_MODE_PROPERTIES)
3562     DrawPropertiesWindow();
3563   else  /* edit_mode == ED_MODE_DRAWING */
3564     DrawDrawingWindow();
3565 }
3566
3567 static boolean LevelChanged()
3568 {
3569   boolean level_changed = FALSE;
3570   int x, y;
3571
3572   for(y=0; y<lev_fieldy; y++)
3573     for(x=0; x<lev_fieldx; x++)
3574       if (Feld[x][y] != Ur[x][y])
3575         level_changed = TRUE;
3576
3577   return level_changed;
3578 }
3579
3580 static boolean LevelContainsPlayer()
3581 {
3582   boolean player_found = FALSE;
3583   int x, y;
3584
3585   for(y=0; y<lev_fieldy; y++)
3586     for(x=0; x<lev_fieldx; x++)
3587       if (Feld[x][y] == EL_PLAYER_1 ||
3588           Feld[x][y] == EL_SP_MURPHY)
3589         player_found = TRUE;
3590
3591   return player_found;
3592 }
3593
3594 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
3595                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
3596 {
3597   int x, y;
3598
3599   for(x=0; x<lev_fieldx; x++)
3600     for(y=0; y<lev_fieldy; y++)
3601       dst[x][y] = src[x][y];
3602 }
3603
3604 static void CopyCustomElementPropertiesToEditor(int element)
3605 {
3606   int i;
3607
3608   /* needed here to initialize combined element properties */
3609   InitElementPropertiesEngine(level.game_version);
3610
3611   custom_element = element_info[properties_element];
3612
3613   for (i=0; i < NUM_ELEMENT_PROPERTIES; i++)
3614     custom_element_properties[i] = HAS_PROPERTY(element, i);
3615
3616   for (i=0; i < NUM_CHANGE_EVENTS; i++)
3617     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
3618
3619   /* ---------- element settings: configure (custom elements) ------------- */
3620
3621   /* set accessible layer selectbox help value */
3622   custom_element.access_type =
3623     (IS_WALKABLE(element) ? EP_WALKABLE :
3624      IS_PASSABLE(element) ? EP_PASSABLE :
3625      custom_element.access_type);
3626   custom_element.access_layer =
3627     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
3628      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
3629      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
3630      custom_element.access_layer);
3631   custom_element_properties[EP_ACCESSIBLE] =
3632     (IS_ACCESSIBLE_OVER(element) ||
3633      IS_ACCESSIBLE_INSIDE(element) ||
3634      IS_ACCESSIBLE_UNDER(element));
3635
3636   /* set walk-to-object action selectbox help value */
3637   custom_element.walk_to_action =
3638     (IS_DIGGABLE(element) ? EP_DIGGABLE :
3639      IS_COLLECTIBLE(element) ? EP_COLLECTIBLE :
3640      IS_PUSHABLE(element) ? EP_PUSHABLE :
3641      custom_element.walk_to_action);
3642   custom_element_properties[EP_WALK_TO_OBJECT] =
3643     (IS_DIGGABLE(element) ||
3644      IS_COLLECTIBLE(element) ||
3645      IS_PUSHABLE(element));
3646
3647   /* set smash targets selectbox help value */
3648   custom_element.smash_targets =
3649     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
3650      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
3651      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
3652      custom_element.smash_targets);
3653   custom_element_properties[EP_CAN_SMASH] =
3654     (CAN_SMASH_EVERYTHING(element) ||
3655      CAN_SMASH_ENEMIES(element) ||
3656      CAN_SMASH_PLAYER(element));
3657
3658   /* set deadliness selectbox help value */
3659   custom_element.deadliness =
3660     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
3661      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
3662      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
3663      custom_element.deadliness);
3664   custom_element_properties[EP_DEADLY] =
3665     (DONT_TOUCH(element) ||
3666      DONT_COLLIDE_WITH(element) ||
3667      DONT_RUN_INTO(element));
3668
3669   /* set consistency selectbox help value */
3670   custom_element.consistency =
3671     (IS_INDESTRUCTIBLE(element) ? EP_INDESTRUCTIBLE :
3672      CAN_EXPLODE(element) ? EP_CAN_EXPLODE :
3673      custom_element.consistency);
3674   custom_element_properties[EP_EXPLODE_RESULT] =
3675     (IS_INDESTRUCTIBLE(element) ||
3676      CAN_EXPLODE(element));
3677
3678   /* special case: sub-settings dependent from main setting */
3679   if (CAN_EXPLODE_BY_FIRE(element))
3680     custom_element.can_explode_by_fire = TRUE;
3681   if (CAN_EXPLODE_SMASHED(element))
3682     custom_element.can_explode_smashed = TRUE;
3683   if (CAN_EXPLODE_IMPACT(element))
3684     custom_element.can_explode_impact  = TRUE;
3685
3686   /* ---------- element settings: advanced (custom elements) --------------- */
3687
3688   /* set change by player selectbox help value */
3689   custom_element.change_player_action =
3690     (HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
3691      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
3692      HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
3693      custom_element.change_player_action);
3694
3695   /* set change by collision selectbox help value */
3696   custom_element.change_collide_action =
3697     (HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
3698      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
3699      HAS_CHANGE_EVENT(element, CE_COLLISION) ? CE_COLLISION :
3700      custom_element.change_collide_action);
3701
3702   /* set change by other element action selectbox help value */
3703   custom_element.change_other_action =
3704     (HAS_CHANGE_EVENT(element, CE_OTHER_GETS_COLLECTED) ? CE_OTHER_GETS_COLLECTED :
3705      HAS_CHANGE_EVENT(element, CE_OTHER_GETS_PUSHED) ? CE_OTHER_GETS_PUSHED :
3706      HAS_CHANGE_EVENT(element, CE_OTHER_GETS_PRESSED) ? CE_OTHER_GETS_PRESSED :
3707      HAS_CHANGE_EVENT(element, CE_OTHER_GETS_TOUCHED) ? CE_OTHER_GETS_TOUCHED :
3708      HAS_CHANGE_EVENT(element, CE_OTHER_IS_EXPLODING) ? CE_OTHER_IS_EXPLODING :
3709      HAS_CHANGE_EVENT(element, CE_OTHER_IS_CHANGING) ? CE_OTHER_IS_CHANGING :
3710      HAS_CHANGE_EVENT(element, CE_OTHER_IS_TOUCHING) ? CE_OTHER_IS_TOUCHING :
3711      custom_element.change_other_action);
3712 }
3713
3714 static void CopyCustomElementPropertiesToGame(int element)
3715 {
3716   int i;
3717   int access_type_and_layer;
3718
3719   element_info[properties_element] = custom_element;
3720
3721   /* ---------- element settings: configure (custom elements) ------------- */
3722
3723   /* set accessible property from checkbox and selectbox */
3724   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
3725   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
3726   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
3727   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
3728   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
3729   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
3730   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
3731                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
3732                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
3733   custom_element_properties[access_type_and_layer] =
3734     custom_element_properties[EP_ACCESSIBLE];
3735
3736   /* set walk-to-object property from checkbox and selectbox */
3737   custom_element_properties[EP_DIGGABLE] = FALSE;
3738   custom_element_properties[EP_COLLECTIBLE] = FALSE;
3739   custom_element_properties[EP_PUSHABLE] = FALSE;
3740   custom_element_properties[custom_element.walk_to_action] =
3741     custom_element_properties[EP_WALK_TO_OBJECT];
3742
3743   /* set smash property from checkbox and selectbox */
3744   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
3745   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
3746   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
3747   custom_element_properties[custom_element.smash_targets] =
3748     custom_element_properties[EP_CAN_SMASH];
3749
3750   /* set deadliness property from checkbox and selectbox */
3751   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
3752   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
3753   custom_element_properties[EP_DONT_TOUCH] = FALSE;
3754   custom_element_properties[custom_element.deadliness] =
3755     custom_element_properties[EP_DEADLY];
3756
3757   /* set consistency property from checkbox and selectbox */
3758   custom_element_properties[EP_INDESTRUCTIBLE] = FALSE;
3759   custom_element_properties[EP_CAN_EXPLODE] = FALSE;
3760   custom_element_properties[EP_CAN_EXPLODE_BY_FIRE] = FALSE;
3761   custom_element_properties[EP_CAN_EXPLODE_SMASHED] = FALSE;
3762   custom_element_properties[EP_CAN_EXPLODE_IMPACT] = FALSE;
3763   custom_element_properties[custom_element.consistency] =
3764     custom_element_properties[EP_EXPLODE_RESULT];
3765
3766   /* special case: sub-settings dependent from main setting */
3767   if (custom_element_properties[EP_CAN_EXPLODE])
3768   {
3769     custom_element_properties[EP_CAN_EXPLODE_BY_FIRE] =
3770       custom_element.can_explode_by_fire;
3771     custom_element_properties[EP_CAN_EXPLODE_SMASHED] =
3772       custom_element.can_explode_smashed;
3773     custom_element_properties[EP_CAN_EXPLODE_IMPACT] =
3774       custom_element.can_explode_impact;
3775   }
3776
3777   /* ---------- element settings: advanced (custom elements) --------------- */
3778
3779   /* set player change event from checkbox and selectbox */
3780   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
3781   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
3782   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
3783   custom_element_change_events[custom_element.change_player_action] =
3784     custom_element_change_events[CE_BY_PLAYER];
3785
3786   /* set collision change event from checkbox and selectbox */
3787   custom_element_change_events[CE_COLLISION] = FALSE;
3788   custom_element_change_events[CE_IMPACT] = FALSE;
3789   custom_element_change_events[CE_SMASHED] = FALSE;
3790   custom_element_change_events[custom_element.change_collide_action] =
3791     custom_element_change_events[CE_BY_COLLISION];
3792
3793   /* set other element action change event from checkbox and selectbox */
3794   custom_element_change_events[CE_OTHER_IS_TOUCHING] = FALSE;
3795   custom_element_change_events[CE_OTHER_IS_CHANGING] = FALSE;
3796   custom_element_change_events[CE_OTHER_IS_EXPLODING] = FALSE;
3797   custom_element_change_events[CE_OTHER_GETS_TOUCHED] = FALSE;
3798   custom_element_change_events[CE_OTHER_GETS_PRESSED] = FALSE;
3799   custom_element_change_events[CE_OTHER_GETS_PUSHED] = FALSE;
3800   custom_element_change_events[CE_OTHER_GETS_COLLECTED] = FALSE;
3801   custom_element_change_events[custom_element.change_other_action] =
3802     custom_element_change_events[CE_BY_OTHER];
3803
3804   for (i=0; i < NUM_ELEMENT_PROPERTIES; i++)
3805     SET_PROPERTY(element, i, custom_element_properties[i]);
3806
3807   for (i=0; i < NUM_CHANGE_EVENTS; i++)
3808     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
3809
3810   /* copy change events also to special level editor variable */
3811   custom_element = element_info[properties_element];
3812 }
3813
3814 void DrawLevelEd()
3815 {
3816   CloseDoor(DOOR_CLOSE_ALL);
3817   OpenDoor(DOOR_OPEN_2 | DOOR_NO_DELAY);
3818
3819   if (level_editor_test_game)
3820   {
3821     CopyPlayfield(Ur, Feld);
3822     CopyPlayfield(FieldBackup, Ur);
3823
3824     level_editor_test_game = FALSE;
3825   }
3826   else
3827   {
3828     edit_mode = ED_MODE_DRAWING;
3829     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
3830
3831     ResetUndoBuffer();
3832
3833     level_xpos = -1;
3834     level_ypos = -1;
3835   }
3836
3837   /* copy default editor door content to main double buffer */
3838   BlitBitmap(graphic_info[IMG_GLOBAL_DOOR].bitmap, drawto,
3839              DOOR_GFX_PAGEX6, DOOR_GFX_PAGEY1, DXSIZE, DYSIZE, DX, DY);
3840
3841   /* draw mouse button brush elements */
3842   DrawMiniGraphicExt(drawto,
3843                      DX + ED_WIN_MB_LEFT_XPOS, DY + ED_WIN_MB_LEFT_YPOS,
3844                      el2edimg(new_element1));
3845   DrawMiniGraphicExt(drawto,
3846                      DX + ED_WIN_MB_MIDDLE_XPOS, DY + ED_WIN_MB_MIDDLE_YPOS,
3847                      el2edimg(new_element2));
3848   DrawMiniGraphicExt(drawto,
3849                      DX + ED_WIN_MB_RIGHT_XPOS, DY + ED_WIN_MB_RIGHT_YPOS,
3850                      el2edimg(new_element3));
3851
3852   /* draw bigger door */
3853   DrawSpecialEditorDoor();
3854
3855   /* draw new control window */
3856   BlitBitmap(graphic_info[IMG_GLOBAL_DOOR].bitmap, drawto,
3857              DOOR_GFX_PAGEX8, 236, EXSIZE, EYSIZE, EX, EY);
3858
3859   redraw_mask |= REDRAW_ALL;
3860
3861   ReinitializeElementListButtons();     /* only needed after setup changes */
3862   ModifyEditorElementList();            /* may be needed for custom elements */
3863
3864   UnmapTapeButtons();
3865   MapControlButtons();
3866
3867   /* copy actual editor door content to door double buffer for OpenDoor() */
3868   BlitBitmap(drawto, bitmap_db_door,
3869              DX, DY, DXSIZE, DYSIZE, DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
3870
3871   DrawEditModeWindow();
3872
3873   OpenDoor(DOOR_OPEN_1);
3874 }
3875
3876 static void AdjustDrawingAreaGadgets()
3877 {
3878   int ed_xsize = lev_fieldx + 2;
3879   int ed_ysize = lev_fieldy + 2;
3880   int max_ed_fieldx = MAX_ED_FIELDX;
3881   int max_ed_fieldy = MAX_ED_FIELDY;
3882   boolean horizontal_scrollbar_needed;
3883   boolean vertical_scrollbar_needed;
3884   int x, y, width, height;
3885   int xoffset, yoffset;
3886
3887   /* check if we need any scrollbars */
3888   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
3889   vertical_scrollbar_needed = (ed_ysize > max_ed_fieldy);
3890
3891   /* check if we have a smaller editor field because of scrollbars */
3892   if (horizontal_scrollbar_needed)
3893     max_ed_fieldy = MAX_ED_FIELDY - 1;
3894   if (vertical_scrollbar_needed)
3895     max_ed_fieldx = MAX_ED_FIELDX - 1;
3896
3897   /* check again if we now need more scrollbars because of less space */
3898   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
3899   vertical_scrollbar_needed = (ed_ysize > max_ed_fieldy);
3900
3901   /* check if editor field gets even smaller after adding new scrollbars */
3902   if (horizontal_scrollbar_needed)
3903     max_ed_fieldy = MAX_ED_FIELDY - 1;
3904   if (vertical_scrollbar_needed)
3905     max_ed_fieldx = MAX_ED_FIELDX - 1;
3906
3907   ed_fieldx = (ed_xsize < MAX_ED_FIELDX ? ed_xsize : max_ed_fieldx);
3908   ed_fieldy = (ed_ysize < MAX_ED_FIELDY ? ed_ysize : max_ed_fieldy);
3909
3910   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
3911                GDI_WIDTH, ed_fieldx * MINI_TILEX,
3912                GDI_HEIGHT, ed_fieldy * MINI_TILEY,
3913                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
3914                GDI_END);
3915
3916   xoffset = (ed_fieldx == MAX_ED_FIELDX ? ED_SCROLLBUTTON_XSIZE : 0);
3917   yoffset = (ed_fieldy == MAX_ED_FIELDY ? ED_SCROLLBUTTON_YSIZE : 0);
3918
3919   x = SX + scrollbutton_info[ED_SCROLLBUTTON_ID_AREA_RIGHT].x + xoffset;
3920   y = SX + scrollbutton_info[ED_SCROLLBUTTON_ID_AREA_DOWN].y + yoffset;
3921
3922   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT], GDI_X, x, GDI_END);
3923   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN], GDI_Y, y, GDI_END);
3924
3925   width = scrollbar_info[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width + xoffset;
3926   height = scrollbar_info[ED_SCROLLBAR_ID_AREA_VERTICAL].height + yoffset;
3927
3928   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
3929                GDI_WIDTH, width,
3930                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
3931                GDI_END);
3932   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
3933                GDI_HEIGHT, height,
3934                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
3935                GDI_END);
3936 }
3937
3938 static void AdjustLevelScrollPosition()
3939 {
3940   if (level_xpos < -1)
3941     level_xpos = -1;
3942   if (level_xpos > lev_fieldx - ed_fieldx + 1)
3943     level_xpos = lev_fieldx - ed_fieldx + 1;
3944   if (lev_fieldx < ed_fieldx - 2)
3945     level_xpos = -1;
3946
3947   if (level_ypos < -1)
3948     level_ypos = -1;
3949   if (level_ypos > lev_fieldy - ed_fieldy + 1)
3950     level_ypos = lev_fieldy - ed_fieldy + 1;
3951   if (lev_fieldy < ed_fieldy - 2)
3952     level_ypos = -1;
3953 }
3954
3955 static void AdjustEditorScrollbar(int id)
3956 {
3957   struct GadgetInfo *gi = level_editor_gadget[id];
3958   int items_max, items_visible, item_position;
3959
3960   if (id == GADGET_ID_SCROLL_HORIZONTAL)
3961   {
3962     items_max = MAX(lev_fieldx + 2, ed_fieldx);
3963     items_visible = ed_fieldx;
3964     item_position = level_xpos + 1;
3965   }
3966   else
3967   {
3968     items_max = MAX(lev_fieldy + 2, ed_fieldy);
3969     items_visible = ed_fieldy;
3970     item_position = level_ypos + 1;
3971   }
3972
3973   if (item_position > items_max - items_visible)
3974     item_position = items_max - items_visible;
3975
3976   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
3977                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
3978 }
3979
3980 static void ModifyEditorCounter(int counter_id, int new_value)
3981 {
3982   int *counter_value = counterbutton_info[counter_id].value;
3983   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
3984   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
3985
3986   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
3987
3988   if (counter_value != NULL)
3989     *counter_value = gi->text.number_value;
3990 }
3991
3992 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
3993 {
3994   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
3995   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
3996
3997   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
3998 }
3999
4000 static void ModifyEditorSelectbox(int selectbox_id, int new_value)
4001 {
4002   int gadget_id = selectbox_info[selectbox_id].gadget_id;
4003   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
4004   int new_index_value = 0;
4005   int i;
4006
4007   for(i=0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
4008     if (selectbox_info[selectbox_id].options[i].value == new_value)
4009       new_index_value = i;
4010
4011   *selectbox_info[selectbox_id].value =
4012     selectbox_info[selectbox_id].options[new_index_value].value;
4013
4014   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
4015 }
4016
4017 static void ModifyEditorElementList()
4018 {
4019   int i;
4020
4021   for (i=0; i<ED_NUM_ELEMENTLIST_BUTTONS; i++)
4022   {
4023     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
4024     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
4025     struct GadgetDesign *gd = &gi->deco.design;
4026     int element = editor_elements[element_shift + i];
4027
4028     UnmapGadget(gi);
4029     getMiniGraphicSource(el2edimg(element), &gd->bitmap, &gd->x, &gd->y);
4030     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
4031     MapGadget(gi);
4032   }
4033 }
4034
4035 static void PickDrawingElement(int button, int element)
4036 {
4037   if (button < 1 || button > 3)
4038     return;
4039
4040   if (button == 1)
4041   {
4042     new_element1 = element;
4043     DrawMiniGraphicExt(drawto,
4044                        DX + ED_WIN_MB_LEFT_XPOS, DY + ED_WIN_MB_LEFT_YPOS,
4045                        el2edimg(new_element1));
4046   }
4047   else if (button == 2)
4048   {
4049     new_element2 = element;
4050     DrawMiniGraphicExt(drawto,
4051                        DX + ED_WIN_MB_MIDDLE_XPOS, DY + ED_WIN_MB_MIDDLE_YPOS,
4052                        el2edimg(new_element2));
4053   }
4054   else
4055   {
4056     new_element3 = element;
4057     DrawMiniGraphicExt(drawto,
4058                        DX + ED_WIN_MB_RIGHT_XPOS, DY + ED_WIN_MB_RIGHT_YPOS,
4059                        el2edimg(new_element3));
4060   }
4061
4062   redraw_mask |= REDRAW_DOOR_1;
4063 }
4064
4065 static void RedrawDrawingElements()
4066 {
4067   PickDrawingElement(1, new_element1);
4068   PickDrawingElement(2, new_element2);
4069   PickDrawingElement(3, new_element3);
4070 }
4071
4072 static void DrawDrawingWindow()
4073 {
4074   stick_element_properties_window = FALSE;
4075
4076   SetMainBackgroundImage(IMG_UNDEFINED);
4077   ClearWindow();
4078   UnmapLevelEditorWindowGadgets();
4079
4080   AdjustDrawingAreaGadgets();
4081   AdjustLevelScrollPosition();
4082   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
4083   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
4084
4085   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
4086   MapMainDrawingArea();
4087 }
4088
4089 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
4090                               boolean input)
4091 {
4092   int border_graphic =
4093     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
4094   Bitmap *src_bitmap;
4095   int src_x, src_y;
4096   int num_mini_tilex = width / MINI_TILEX + 1;
4097   int num_mini_tiley = width / MINI_TILEY + 1;
4098   int x, y;
4099
4100   getMiniGraphicSource(border_graphic, &src_bitmap, &src_x, &src_y);
4101
4102   for (y=0; y < num_mini_tiley; y++)
4103     for (x=0; x < num_mini_tilex; x++)
4104       BlitBitmap(src_bitmap, drawto, src_x, src_y, MINI_TILEX, MINI_TILEY,
4105                  dest_x - MINI_TILEX / 2 + x * MINI_TILEX,
4106                  dest_y - MINI_TILEY / 2 + y * MINI_TILEY);
4107
4108   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
4109 }
4110
4111 static void DrawRandomPlacementBackgroundArea()
4112 {
4113   int area_x = ED_AREA_RANDOM_BACKGROUND_XPOS / MINI_TILEX;
4114   int area_y = ED_AREA_RANDOM_BACKGROUND_YPOS / MINI_TILEY;
4115   int area_sx = SX + ED_AREA_RANDOM_BACKGROUND_XPOS;
4116   int area_sy = SY + ED_AREA_RANDOM_BACKGROUND_YPOS;
4117
4118   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY, TRUE);
4119   DrawMiniElement(area_x, area_y, random_placement_background_element);
4120
4121   MapDrawingArea(GADGET_ID_RANDOM_BACKGROUND);
4122 }
4123
4124 static void DrawLevelInfoWindow()
4125 {
4126   int i;
4127
4128   stick_element_properties_window = FALSE;
4129
4130   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
4131   ClearWindow();
4132   UnmapLevelEditorWindowGadgets();
4133
4134   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS1_YPOS,
4135            "Level Settings", FONT_TITLE_1);
4136   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS2_YPOS,
4137            "Editor Settings", FONT_TITLE_1);
4138
4139   /* draw counter gadgets */
4140   for (i=ED_COUNTER_ID_LEVEL_FIRST; i<=ED_COUNTER_ID_LEVEL_LAST; i++)
4141     MapCounterButtons(i);
4142
4143   /* draw checkbutton gadgets */
4144   for (i=ED_CHECKBUTTON_ID_LEVEL_FIRST; i<=ED_CHECKBUTTON_ID_LEVEL_LAST; i++)
4145     MapCheckbuttonGadget(i);
4146
4147   /* draw radiobutton gadgets */
4148   for (i=ED_RADIOBUTTON_ID_LEVEL_FIRST; i<=ED_RADIOBUTTON_ID_LEVEL_LAST; i++)
4149     MapRadiobuttonGadget(i);
4150
4151   /* draw text input gadgets */
4152   for (i=ED_TEXTINPUT_ID_LEVEL_FIRST; i<=ED_TEXTINPUT_ID_LEVEL_LAST; i++)
4153     MapTextInputGadget(i);
4154
4155   /* draw drawing area */
4156   DrawRandomPlacementBackgroundArea();
4157 }
4158
4159 static void DrawAmoebaContentArea()
4160 {
4161   int area_x = ED_AREA_ELEM_CONTENT_XPOS / MINI_TILEX;
4162   int area_y = ED_AREA_ELEM_CONTENT_YPOS / MINI_TILEY;
4163   int area_sx = SX + ED_AREA_ELEM_CONTENT_XPOS;
4164   int area_sy = SY + ED_AREA_ELEM_CONTENT_YPOS;
4165
4166   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY, TRUE);
4167   DrawMiniElement(area_x, area_y, level.amoeba_content);
4168
4169   DrawText(area_sx + TILEX, area_sy + 1, "Content of amoeba", FONT_TEXT_1);
4170
4171   MapDrawingArea(GADGET_ID_AMOEBA_CONTENT);
4172 }
4173
4174 static void DrawCustomGraphicElementArea()
4175 {
4176   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_CUSTOM_GRAPHIC];
4177   int xpos = ED_AREA_ELEM_CONTENT3_XPOS;
4178   int ypos = ED_AREA_ELEM_CONTENT3_YPOS;
4179   int area_sx = SX + xpos;
4180   int area_sy = SY + ypos;
4181
4182   if (!IS_CUSTOM_ELEMENT(properties_element))
4183   {
4184     /* this should never happen */
4185     Error(ERR_WARN, "element %d is no custom element", properties_element);
4186
4187     return;
4188   }
4189
4190   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY, TRUE);
4191   DrawMiniGraphicExt(drawto, gi->x, gi->y,
4192                      el2edimg(custom_element.gfx_element));
4193
4194   MapDrawingArea(GADGET_ID_CUSTOM_GRAPHIC);
4195 }
4196
4197 static void DrawCustomContentArea()
4198 {
4199   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_CUSTOM_CONTENT];
4200   int area_sx = SX + ED_AREA_ELEM_CONTENT4_XPOS;
4201   int area_sy = SY + ED_AREA_ELEM_CONTENT4_YPOS;
4202   int x, y;
4203
4204   if (!IS_CUSTOM_ELEMENT(properties_element))
4205   {
4206     /* this should never happen */
4207     Error(ERR_WARN, "element %d is no custom element", properties_element);
4208
4209     return;
4210   }
4211
4212   DrawElementBorder(area_sx, area_sy, 3 * MINI_TILEX, 3 * MINI_TILEY, TRUE);
4213
4214   for (y=0; y<3; y++)
4215     for (x=0; x<3; x++)
4216       DrawMiniGraphicExt(drawto, gi->x + x * MINI_TILEX,gi->y + y * MINI_TILEY,
4217                          el2edimg(custom_element.content[x][y]));
4218
4219   MapDrawingArea(GADGET_ID_CUSTOM_CONTENT);
4220 }
4221
4222 static void DrawCustomChangeTargetArea()
4223 {
4224   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_CUSTOM_CHANGE_TARGET];
4225   int xpos = ED_AREA_ELEM_CONTENT2_XPOS;
4226   int ypos = ED_AREA_ELEM_CONTENT2_YPOS;
4227   int area_sx = SX + xpos;
4228   int area_sy = SY + ypos;
4229
4230   if (!IS_CUSTOM_ELEMENT(properties_element))
4231   {
4232     /* this should never happen */
4233     Error(ERR_WARN, "element %d is no custom element", properties_element);
4234
4235     return;
4236   }
4237
4238   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY, TRUE);
4239   DrawMiniGraphicExt(drawto, gi->x, gi->y,
4240                      el2edimg(custom_element.change.target_element));
4241
4242   MapDrawingArea(GADGET_ID_CUSTOM_CHANGE_TARGET);
4243 }
4244
4245 static void DrawCustomChangeContentArea()
4246 {
4247   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_CUSTOM_CHANGE_CONTENT];
4248   int area_sx = SX + ED_AREA_ELEM_CONTENT6_XPOS;
4249   int area_sy = SY + ED_AREA_ELEM_CONTENT6_YPOS;
4250   int x, y;
4251
4252   if (!IS_CUSTOM_ELEMENT(properties_element))
4253   {
4254     /* this should never happen */
4255     Error(ERR_WARN, "element %d is no custom element", properties_element);
4256
4257     return;
4258   }
4259
4260   DrawElementBorder(area_sx, area_sy, 3 * MINI_TILEX, 3 * MINI_TILEY, TRUE);
4261
4262   for (y=0; y<3; y++)
4263     for (x=0; x<3; x++)
4264       DrawMiniGraphicExt(drawto, gi->x + x * MINI_TILEX,gi->y + y * MINI_TILEY,
4265                          el2edimg(custom_element.change.content[x][y]));
4266
4267   MapDrawingArea(GADGET_ID_CUSTOM_CHANGE_CONTENT);
4268 }
4269
4270 static void DrawCustomChangeTriggerArea()
4271 {
4272   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_CUSTOM_CHANGE_TRIGGER];
4273   int xpos = ED_AREA_ELEM_CONTENT5_XPOS;
4274   int ypos = ED_AREA_ELEM_CONTENT5_YPOS;
4275   int area_sx = SX + xpos;
4276   int area_sy = SY + ypos;
4277
4278   if (!IS_CUSTOM_ELEMENT(properties_element))
4279   {
4280     /* this should never happen */
4281     Error(ERR_WARN, "element %d is no custom element", properties_element);
4282
4283     return;
4284   }
4285
4286   DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY, TRUE);
4287   DrawMiniGraphicExt(drawto, gi->x, gi->y,
4288                      el2edimg(custom_element.change.trigger_element));
4289
4290   MapDrawingArea(GADGET_ID_CUSTOM_CHANGE_TRIGGER);
4291 }
4292
4293 static void DrawElementContentAreas()
4294 {
4295   int area_x = ED_AREA_ELEM_CONTENT_XPOS / MINI_TILEX;
4296   int area_y = ED_AREA_ELEM_CONTENT_YPOS / MINI_TILEY;
4297   int area_sx = SX + ED_AREA_ELEM_CONTENT_XPOS;
4298   int area_sy = SY + ED_AREA_ELEM_CONTENT_YPOS;
4299   int i, x, y;
4300
4301   for (i=0; i<MAX_ELEMENT_CONTENTS; i++)
4302     UnmapDrawingArea(GADGET_ID_ELEMENT_CONTENT_0 + i);
4303
4304   /* display counter to choose number of element content areas */
4305   MapCounterButtons(ED_COUNTER_ID_ELEMENT_CONTENT);
4306
4307   /* delete content areas in case of reducing number of them */
4308   DrawBackground(SX, area_sy - MINI_TILEX, SXSIZE, 12 * MINI_TILEY);
4309
4310   for (i=0; i<level.num_yamyam_contents; i++)
4311     DrawElementBorder(area_sx + 5 * (i % 4) * MINI_TILEX,
4312                       area_sy + 6 * (i / 4) * MINI_TILEY,
4313                       3 * MINI_TILEX, 3 * MINI_TILEY, TRUE);
4314
4315   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 0 * MINI_TILEY + 1,
4316            "Content", FONT_TEXT_1);
4317   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 1 * MINI_TILEY + 1,
4318            "when",    FONT_TEXT_1);
4319   DrawText(area_sx + (5 * 4 - 1) * MINI_TILEX, area_sy + 2 * MINI_TILEY + 1,
4320            "smashed", FONT_TEXT_1);
4321
4322   for (i=0; i<level.num_yamyam_contents; i++)
4323   {
4324     for (y=0; y<3; y++)
4325       for (x=0; x<3; x++)
4326         DrawMiniElement(area_x + 5 * (i % 4) + x, area_y + 6 * (i / 4) + y,
4327                         level.yamyam_content[i][x][y]);
4328
4329     DrawTextF(area_sx - SX + 5 * (i % 4) * MINI_TILEX + MINI_TILEX + 1,
4330               area_sy - SY + 6 * (i / 4) * MINI_TILEY + 4 * MINI_TILEY - 4,
4331               FONT_TEXT_1, "%d", i + 1);
4332   }
4333
4334   for (i=0; i<level.num_yamyam_contents; i++)
4335     MapDrawingArea(GADGET_ID_ELEMENT_CONTENT_0 + i);
4336 }
4337
4338 char *getElementDescriptionFilename(int element)
4339 {
4340   char *docs_dir = options.docs_directory;
4341   char *elements_subdir = "elements";
4342   static char *filename = NULL;
4343   char basename[MAX_FILENAME_LEN];
4344
4345   if (filename != NULL)
4346     free(filename);
4347
4348   /* 1st try: look for element description file for exactly this element */
4349   sprintf(basename, "%s.txt", element_info[element].token_name);
4350   filename = getPath3(docs_dir, elements_subdir, basename);
4351   if (fileExists(filename))
4352     return filename;
4353
4354   free(filename);
4355
4356   /* 2nd try: look for element description file for this element's class */
4357   sprintf(basename, "%s.txt", element_info[element].class_name);
4358   filename = getPath3(docs_dir, elements_subdir, basename);
4359   if (fileExists(filename))
4360     return filename;
4361
4362   return NULL;
4363 }
4364
4365 static boolean PrintInfoText(char *text, int font_nr, int screen_line)
4366 {
4367   int font_height = getFontHeight(font_nr);
4368   int pad_x = ED_SETTINGS_XPOS(0);
4369   int pad_y = ED_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
4370   int sx = SX + pad_x;
4371   int sy = SY + pad_y;
4372   int max_lines_per_screen = (SYSIZE - pad_y) / font_height - 1;
4373
4374   if (screen_line >= max_lines_per_screen)
4375     return FALSE;
4376
4377   DrawText(sx, sy + screen_line * font_height, text, font_nr);
4378
4379   return TRUE;
4380 }
4381
4382 static int PrintElementDescriptionFromFile(char *filename, int screen_line)
4383 {
4384   int font_nr = FONT_TEXT_2;
4385   int font_width = getFontWidth(font_nr);
4386   int pad_x = ED_SETTINGS_XPOS(0);
4387   int max_chars_per_line = (SXSIZE - 2 * pad_x) / font_width;
4388   char line[MAX_LINE_LEN];
4389   char buffer[max_chars_per_line + 1];
4390   int buffer_len;
4391   int lines_printed = 0;
4392   FILE *file;
4393
4394   if (filename == NULL)
4395     return 0;
4396
4397   if (!(file = fopen(filename, MODE_READ)))
4398     return 0;
4399
4400   buffer[0] = '\0';
4401   buffer_len = 0;
4402
4403   while(!feof(file))
4404   {
4405     char *line_ptr, *word_ptr;
4406     boolean last_line_was_empty = TRUE;
4407
4408     /* read next line of input file */
4409     if (!fgets(line, MAX_LINE_LEN, file))
4410       break;
4411
4412     /* skip comments (lines directly beginning with '#') */
4413     if (line[0] == '#')
4414       continue;
4415
4416     /* cut trailing newline from input line */
4417     for (line_ptr = line; *line_ptr; line_ptr++)
4418     {
4419       if (*line_ptr == '\n' || *line_ptr == '\r')
4420       {
4421         *line_ptr = '\0';
4422         break;
4423       }
4424     }
4425
4426     if (strlen(line) == 0)              /* special case: force empty line */
4427       strcpy(line, "\n");
4428
4429     word_ptr = line;
4430
4431     while (*word_ptr)
4432     {
4433       boolean print_buffer = FALSE;
4434       int word_len;
4435
4436       /* skip leading whitespaces */
4437       while (*word_ptr == ' ' || *word_ptr == '\t')
4438         word_ptr++;
4439
4440       line_ptr = word_ptr;
4441       word_len = 0;
4442
4443       /* look for end of next word */
4444       while (*line_ptr != ' ' && *line_ptr != '\t' && *line_ptr != '\0')
4445       {
4446         line_ptr++;
4447         word_len++;
4448       }
4449
4450       if (word_len == 0)
4451       {
4452         continue;
4453       }
4454       else if (*word_ptr == '\n')       /* special case: force empty line */
4455       {
4456         if (buffer_len == 0)
4457           word_ptr++;
4458
4459         /* prevent printing of multiple empty lines */
4460         if (buffer_len > 0 || !last_line_was_empty)
4461           print_buffer = TRUE;
4462       }
4463       else if (word_len < max_chars_per_line - buffer_len)
4464       {
4465         /* word fits into text buffer -- add word */
4466
4467         if (buffer_len > 0)
4468           buffer[buffer_len++] = ' ';
4469
4470         strncpy(&buffer[buffer_len], word_ptr, word_len);
4471         buffer_len += word_len;
4472         buffer[buffer_len] = '\0';
4473         word_ptr += word_len;
4474       }
4475       else if (buffer_len > 0)
4476       {
4477         /* not enough space left for word in text buffer -- print buffer */
4478
4479         print_buffer = TRUE;
4480       }
4481       else
4482       {
4483         /* word does not fit at all into empty text buffer -- cut word */
4484
4485         strncpy(buffer, word_ptr, max_chars_per_line);
4486         buffer[max_chars_per_line] = '\0';
4487         word_ptr += max_chars_per_line;
4488         print_buffer = TRUE;
4489       }
4490
4491       if (print_buffer)
4492       {
4493         if (!PrintInfoText(buffer, font_nr, screen_line + lines_printed))
4494           return lines_printed;
4495
4496         last_line_was_empty = (buffer_len == 0);
4497         lines_printed++;
4498
4499         buffer[0] = '\0';
4500         buffer_len = 0;
4501         print_buffer = FALSE;
4502       }
4503     }
4504   }
4505
4506   fclose(file);
4507
4508   if (buffer_len > 0)
4509     if (PrintInfoText(buffer, font_nr, screen_line + lines_printed))
4510       lines_printed++;
4511
4512   return lines_printed;
4513 }
4514
4515 static void DrawPropertiesTabulatorGadgets()
4516 {
4517   struct GadgetInfo *gd_gi = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
4518   struct GadgetDesign *gd = &gd_gi->alt_design[GD_BUTTON_UNPRESSED];
4519   int gd_x = gd->x + gd_gi->border.width / 2;
4520   int gd_y = gd->y + gd_gi->height - 1;
4521   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
4522   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
4523   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
4524   int i;
4525
4526   /* draw additional "advanced" tabulator for custom elements */
4527   if (IS_CUSTOM_ELEMENT(properties_element))
4528     id_last = ED_TEXTBUTTON_ID_PROPERTIES_ADVANCED;
4529
4530   for (i=id_first; i <= id_last; i++)
4531   {
4532     int gadget_id = textbutton_info[i].gadget_id;
4533     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
4534     boolean active = (i != edit_mode_properties);
4535
4536     /* draw background line below tabulator button */
4537     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width,1);
4538
4539     /* draw solid line below inactive tabulator buttons */
4540     if (!active && tab_color != BLACK_PIXEL)    /* black => transparent */
4541       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width,1, tab_color);
4542
4543     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
4544     MapTextbuttonGadget(i);
4545   }
4546
4547   /* draw little border line below tabulator buttons */
4548   if (tab_color != BLACK_PIXEL)                 /* black => transparent */
4549     FillRectangle(drawto, gd_gi->x, gd_gi->y + gd_gi->height + 1,
4550                   3 * gd_gi->width + 2 * ED_GADGET_DISTANCE,
4551                   ED_GADGET_DISTANCE, tab_color);
4552 }
4553
4554 static void DrawPropertiesInfo()
4555 {
4556   static struct
4557   {
4558     int value;
4559     char *text;
4560   }
4561   properties[] =
4562   {
4563     /* configurable properties */
4564     { EP_INDESTRUCTIBLE,        "- undestructible"                      },
4565     { EP_SLIPPERY,              "- slippery for falling objects"        },
4566     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
4567
4568     { EP_DIGGABLE,              "- diggable"                            },
4569     { EP_COLLECTIBLE,           "- collectible"                         },
4570     { EP_PUSHABLE,              "- pushable"                            },
4571
4572     { EP_CAN_MOVE,              "- can move"                            },
4573     { EP_CAN_FALL,              "- can fall"                            },
4574 #if 0
4575     { EP_CAN_SMASH,             "- can smash"                           },
4576 #endif
4577     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
4578     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
4579     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
4580     { EP_CAN_EXPLODE,           "- can explode"                         },
4581     { EP_CAN_EXPLODE_BY_FIRE,   "  - by fire or explosions"             },
4582     { EP_CAN_EXPLODE_SMASHED,   "  - when smashed"                      },
4583     { EP_CAN_EXPLODE_IMPACT,    "  - on impact"                         },
4584
4585     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
4586     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
4587     { EP_DONT_TOUCH,            "- deadly when touching"                },
4588
4589     { EP_WALKABLE_OVER,         "- player can walk over it"             },
4590     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
4591     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
4592     { EP_PASSABLE_OVER,         "- player can pass over it"             },
4593     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
4594     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
4595
4596     /* pre-defined properties */
4597     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
4598     { EP_HAS_CONTENT,           "- can contain other elements"          },
4599
4600     { -1,                       NULL                                    }
4601   };
4602   char *filename = getElementDescriptionFilename(properties_element);
4603   char *percentage_text = "In this level:";
4604   char *properties_text = "Standard properties:";
4605   float percentage;
4606   int num_elements_in_level;
4607   int num_standard_properties = 0;
4608   int font1_nr = FONT_TEXT_1;
4609   int font2_nr = FONT_TEXT_2;
4610   int font1_width = getFontWidth(font1_nr);
4611   int font2_height = getFontHeight(font2_nr);
4612   int pad_x = ED_SETTINGS_XPOS(0);
4613   int pad_y = ED_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
4614   int screen_line = 0;
4615   int i, x, y;
4616
4617   /* ----- print number of elements / percentage of this element in level */
4618
4619   num_elements_in_level = 0;
4620   for (y=0; y<lev_fieldy; y++)
4621     for (x=0; x<lev_fieldx; x++)
4622       if (Feld[x][y] == properties_element)
4623         num_elements_in_level++;
4624   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
4625
4626   DrawTextF(pad_x, pad_y + screen_line * font2_height, font1_nr,
4627             percentage_text);
4628   DrawTextF(pad_x + strlen(percentage_text) * font1_width,
4629             pad_y + screen_line++ * font2_height, font2_nr,
4630             "%d (%.2f%%)", num_elements_in_level, percentage);
4631
4632   screen_line++;
4633
4634   /* ----- print standard properties of this element */
4635
4636   DrawTextF(pad_x, pad_y + screen_line++ * font2_height, font1_nr,
4637             properties_text);
4638
4639   for (i=0; properties[i].value != -1; i++)
4640   {
4641     if (!HAS_PROPERTY(properties_element, properties[i].value))
4642       continue;
4643
4644     DrawTextF(pad_x, pad_y + screen_line++ * font2_height, font2_nr,
4645               properties[i].text);
4646     num_standard_properties++;
4647   }
4648
4649   if (num_standard_properties == 0)
4650     DrawTextF(pad_x + strlen(properties_text) * font1_width,
4651               pad_y + (screen_line - 1) * font2_height, font2_nr, "none");
4652
4653   screen_line++;
4654
4655   /* ----- print special description of this element */
4656
4657   PrintInfoText("Description:", FONT_TEXT_1, screen_line);
4658   if (PrintElementDescriptionFromFile(filename, screen_line + 1) == 0)
4659     PrintInfoText("No description available.", FONT_TEXT_1, screen_line);
4660 }
4661
4662 #define TEXT_COLLECTING         "Score for collecting"
4663 #define TEXT_SMASHING           "Score for smashing"
4664 #define TEXT_CRACKING           "Score for cracking"
4665 #define TEXT_SPEED              "Speed of amoeba growth"
4666 #define TEXT_DURATION           "Duration when activated"
4667
4668 static struct
4669 {
4670   int element;
4671   int *value;
4672   char *text;
4673 } elements_with_counter[] =
4674 {
4675   { EL_EMERALD,         &level.score[SC_EMERALD],       TEXT_COLLECTING },
4676   { EL_BD_DIAMOND,      &level.score[SC_EMERALD],       TEXT_COLLECTING },
4677   { EL_EMERALD_YELLOW,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
4678   { EL_EMERALD_RED,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
4679   { EL_EMERALD_PURPLE,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
4680   { EL_SP_INFOTRON,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
4681   { EL_DIAMOND,         &level.score[SC_DIAMOND],       TEXT_COLLECTING },
4682   { EL_CRYSTAL,         &level.score[SC_CRYSTAL],       TEXT_COLLECTING },
4683   { EL_PEARL,           &level.score[SC_PEARL],         TEXT_COLLECTING },
4684   { EL_BUG_RIGHT,       &level.score[SC_BUG],           TEXT_SMASHING   },
4685   { EL_BUG_UP,          &level.score[SC_BUG],           TEXT_SMASHING   },
4686   { EL_BUG_LEFT,        &level.score[SC_BUG],           TEXT_SMASHING   },
4687   { EL_BUG_DOWN,        &level.score[SC_BUG],           TEXT_SMASHING   },
4688   { EL_BD_BUTTERFLY_RIGHT,&level.score[SC_BUG],         TEXT_SMASHING   },
4689   { EL_BD_BUTTERFLY_UP,   &level.score[SC_BUG],         TEXT_SMASHING   },
4690   { EL_BD_BUTTERFLY_LEFT, &level.score[SC_BUG],         TEXT_SMASHING   },
4691   { EL_BD_BUTTERFLY_DOWN, &level.score[SC_BUG],         TEXT_SMASHING   },
4692   { EL_SP_ELECTRON,     &level.score[SC_BUG],           TEXT_SMASHING   },
4693   { EL_SPACESHIP_RIGHT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4694   { EL_SPACESHIP_UP,    &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4695   { EL_SPACESHIP_LEFT,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4696   { EL_SPACESHIP_DOWN,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4697   { EL_BD_FIREFLY_RIGHT,&level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4698   { EL_BD_FIREFLY_UP,   &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4699   { EL_BD_FIREFLY_LEFT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4700   { EL_BD_FIREFLY_DOWN, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4701   { EL_SP_SNIKSNAK,     &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
4702   { EL_YAMYAM,          &level.score[SC_YAMYAM],        TEXT_SMASHING   },
4703   { EL_DARK_YAMYAM,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
4704   { EL_ROBOT,           &level.score[SC_ROBOT],         TEXT_SMASHING   },
4705   { EL_PACMAN_RIGHT,    &level.score[SC_PACMAN],        TEXT_SMASHING   },
4706   { EL_PACMAN_UP,       &level.score[SC_PACMAN],        TEXT_SMASHING   },
4707   { EL_PACMAN_LEFT,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
4708   { EL_PACMAN_DOWN,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
4709   { EL_NUT,             &level.score[SC_NUT],           TEXT_CRACKING   },
4710   { EL_DYNAMITE,        &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
4711   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],TEXT_COLLECTING },
4712   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],TEXT_COLLECTING },
4713   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],TEXT_COLLECTING },
4714   { EL_SHIELD_NORMAL,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
4715   { EL_SHIELD_DEADLY,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
4716   { EL_EXTRA_TIME,      &level.score[SC_TIME_BONUS],    TEXT_COLLECTING },
4717   { EL_KEY_1,           &level.score[SC_KEY],           TEXT_COLLECTING },
4718   { EL_KEY_2,           &level.score[SC_KEY],           TEXT_COLLECTING },
4719   { EL_KEY_3,           &level.score[SC_KEY],           TEXT_COLLECTING },
4720   { EL_KEY_4,           &level.score[SC_KEY],           TEXT_COLLECTING },
4721   { EL_EM_KEY_1_FILE,   &level.score[SC_KEY],           TEXT_COLLECTING },
4722   { EL_EM_KEY_2_FILE,   &level.score[SC_KEY],           TEXT_COLLECTING },
4723   { EL_EM_KEY_3_FILE,   &level.score[SC_KEY],           TEXT_COLLECTING },
4724   { EL_EM_KEY_4_FILE,   &level.score[SC_KEY],           TEXT_COLLECTING },
4725   { EL_AMOEBA_WET,      &level.amoeba_speed,            TEXT_SPEED      },
4726   { EL_AMOEBA_DRY,      &level.amoeba_speed,            TEXT_SPEED      },
4727   { EL_AMOEBA_FULL,     &level.amoeba_speed,            TEXT_SPEED      },
4728   { EL_BD_AMOEBA,       &level.amoeba_speed,            TEXT_SPEED      },
4729   { EL_MAGIC_WALL,      &level.time_magic_wall,         TEXT_DURATION   },
4730   { EL_ROBOT_WHEEL,     &level.time_wheel,              TEXT_DURATION   },
4731   { -1,                 NULL,                           NULL            }
4732 };
4733
4734 static boolean checkPropertiesConfig()
4735 {
4736   int i;
4737
4738   if (IS_GEM(properties_element) ||
4739       IS_CUSTOM_ELEMENT(properties_element) ||
4740       HAS_CONTENT(properties_element))
4741     return TRUE;
4742   else
4743     for (i=0; elements_with_counter[i].element != -1; i++)
4744       if (elements_with_counter[i].element == properties_element)
4745         return TRUE;
4746
4747   return FALSE;
4748 }
4749
4750 static void DrawPropertiesConfig()
4751 {
4752   int i;
4753
4754   if (!checkPropertiesConfig())
4755   {
4756     PrintInfoText("No configuration options available.", FONT_TEXT_1, 0);
4757
4758     return;
4759   }
4760
4761   /* check if there are elements where a score can be chosen for */
4762   for (i=0; elements_with_counter[i].element != -1; i++)
4763   {
4764     if (elements_with_counter[i].element == properties_element)
4765     {
4766       int counter_id = ED_COUNTER_ID_ELEMENT_SCORE;
4767
4768       counterbutton_info[counter_id].value = elements_with_counter[i].value;
4769       counterbutton_info[counter_id].text_right= elements_with_counter[i].text;
4770       MapCounterButtons(counter_id);
4771
4772       break;
4773     }
4774   }
4775
4776   if (HAS_CONTENT(properties_element))
4777   {
4778     /* draw stickybutton gadget */
4779     i = ED_CHECKBUTTON_ID_STICK_ELEMENT;
4780     checkbutton_info[i].y = ED_COUNTER_YPOS(4);
4781     MapCheckbuttonGadget(i);
4782
4783     if (IS_AMOEBOID(properties_element))
4784       DrawAmoebaContentArea();
4785     else
4786       DrawElementContentAreas();
4787   }
4788
4789   if (IS_GEM(properties_element))
4790     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
4791
4792   if (IS_CUSTOM_ELEMENT(properties_element))
4793   {
4794     /* draw stickybutton gadget */
4795     i = ED_CHECKBUTTON_ID_STICK_ELEMENT;
4796     checkbutton_info[i].y = ED_SETTINGS_YPOS(0);
4797     MapCheckbuttonGadget(i);
4798
4799     /* draw checkbutton gadgets */
4800     for (i =  ED_CHECKBUTTON_ID_CUSTOM_FIRST;
4801          i <= ED_CHECKBUTTON_ID_CUSTOM_LAST; i++)
4802       MapCheckbuttonGadget(i);
4803
4804     /* draw counter gadgets */
4805     for (i=ED_COUNTER_ID_CUSTOM_FIRST; i<=ED_COUNTER_ID_CUSTOM_LAST; i++)
4806       MapCounterButtons(i);
4807
4808     /* draw selectbox gadgets */
4809     for (i=ED_SELECTBOX_ID_CUSTOM_FIRST; i <= ED_SELECTBOX_ID_CUSTOM_LAST; i++)
4810       MapSelectboxGadget(i);
4811
4812     /* draw drawing area gadgets */
4813     DrawCustomContentArea();
4814   }
4815 }
4816
4817 static void DrawPropertiesAdvancedDrawingAreas()
4818 {
4819   DrawCustomGraphicElementArea();
4820   DrawCustomChangeTargetArea();
4821   DrawCustomChangeTriggerArea();
4822   DrawCustomChangeContentArea();
4823
4824   redraw_mask |= REDRAW_FIELD;
4825 }
4826
4827 static void DrawPropertiesAdvanced()
4828 {
4829   int i;
4830
4831   /* draw stickybutton gadget */
4832   i = ED_CHECKBUTTON_ID_STICK_ELEMENT;
4833   checkbutton_info[i].y = ED_SETTINGS_YPOS(0);
4834   MapCheckbuttonGadget(i);
4835
4836   /* draw checkbutton gadgets */
4837   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
4838        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
4839     MapCheckbuttonGadget(i);
4840
4841   /* draw counter gadgets */
4842   for (i=ED_COUNTER_ID_CHANGE_FIRST; i<=ED_COUNTER_ID_CHANGE_LAST; i++)
4843     MapCounterButtons(i);
4844
4845   /* draw selectbox gadgets */
4846   for (i=ED_SELECTBOX_ID_CHANGE_FIRST; i<=ED_SELECTBOX_ID_CHANGE_LAST; i++)
4847     MapSelectboxGadget(i);
4848
4849   /* draw textbutton gadgets */
4850   MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE);
4851
4852   /* draw drawing area gadgets */
4853   DrawPropertiesAdvancedDrawingAreas();
4854 }
4855
4856 static void DrawElementName(int x, int y, int element)
4857 {
4858   char *element_name = getElementInfoText(element);
4859   int font_nr = FONT_TEXT_1;
4860   int font_width = getFontWidth(font_nr);
4861   int font_height = getFontHeight(font_nr);
4862   int max_text_width = SXSIZE - x - ED_SETTINGS_XPOS(0);
4863   int max_chars_per_line = max_text_width / font_width;
4864   char buffer[max_chars_per_line + 1];
4865
4866   if (strlen(element_name) <= max_chars_per_line)
4867     DrawTextF(x, y, font_nr, element_name);
4868   else
4869   {
4870     int next_pos = max_chars_per_line;
4871
4872     strncpy(buffer, element_name, max_chars_per_line);
4873     buffer[max_chars_per_line] = '\0';
4874
4875     if (element_name[max_chars_per_line] == ' ')
4876       next_pos++;
4877     else
4878     {
4879       int i;
4880
4881       for (i = max_chars_per_line - 1; i >= 0; i--)
4882         if (buffer[i] == ' ')
4883           break;
4884
4885       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
4886       {
4887         buffer[i] = '\0';
4888         next_pos = i + 1;
4889       }
4890     }
4891
4892     DrawTextF(x, y - font_height / 2, font_nr, buffer);
4893
4894     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
4895     buffer[max_chars_per_line] = '\0';
4896
4897     DrawTextF(x, y + font_height / 2, font_nr, buffer);
4898   }
4899 }
4900
4901 static void DrawPropertiesWindow()
4902 {
4903   int xstart = 2;
4904   int ystart = 4;
4905
4906   stick_element_properties_window = FALSE;
4907
4908   /* make sure that previous properties edit mode exists for this element */
4909   if (edit_mode_properties == ED_MODE_PROPERTIES_ADVANCED &&
4910       !IS_CUSTOM_ELEMENT(properties_element))
4911     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
4912
4913   if (IS_CUSTOM_ELEMENT(properties_element))
4914     CopyCustomElementPropertiesToEditor(properties_element);
4915
4916   UnmapLevelEditorWindowGadgets();
4917
4918   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
4919   ClearWindow();
4920
4921   DrawText(SX + ED_SETTINGS2_XPOS, SY + ED_SETTINGS1_YPOS,
4922            "Element Settings", FONT_TITLE_1);
4923
4924   DrawElementBorder(SX + xstart * MINI_TILEX,
4925                     SY + ystart * MINI_TILEY + MINI_TILEY / 2,
4926                     TILEX, TILEY, FALSE);
4927   DrawGraphicAnimationExt(drawto,
4928                           SX + xstart * MINI_TILEX,
4929                           SY + ystart * MINI_TILEY + MINI_TILEY / 2,
4930                           el2img(properties_element), -1, NO_MASKING);
4931
4932   FrameCounter = 0;     /* restart animation frame counter */
4933
4934   DrawElementName((xstart + 3) * MINI_TILEX, (ystart + 1) * MINI_TILEY,
4935                   properties_element);
4936
4937   DrawPropertiesTabulatorGadgets();
4938
4939   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
4940     DrawPropertiesInfo();
4941   else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG)
4942     DrawPropertiesConfig();
4943   else  /* edit_mode_properties == ED_MODE_PROPERTIES_ADVANCED */
4944     DrawPropertiesAdvanced();
4945 }
4946
4947 static void DrawLineElement(int sx, int sy, int element, boolean change_level)
4948 {
4949   int lx = sx + level_xpos;
4950   int ly = sy + level_ypos;
4951
4952   DrawMiniElement(sx, sy, (element < 0 ? Feld[lx][ly] : element));
4953
4954   if (change_level)
4955     Feld[lx][ly] = element;
4956 }
4957
4958 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
4959                      int element, boolean change_level)
4960 {
4961   if (from_y == to_y)                   /* horizontal line */
4962   {
4963     int x;
4964     int y = from_y;
4965
4966     if (from_x > to_x)
4967       swap_numbers(&from_x, &to_x);
4968
4969     for (x=from_x; x<=to_x; x++)
4970       DrawLineElement(x, y, element, change_level);
4971   }
4972   else if (from_x == to_x)              /* vertical line */
4973   {
4974     int x = from_x;
4975     int y;
4976
4977     if (from_y > to_y)
4978       swap_numbers(&from_y, &to_y);
4979
4980     for (y=from_y; y<=to_y; y++)
4981       DrawLineElement(x, y, element, change_level);
4982   }
4983   else                                  /* diagonal line */
4984   {
4985     int len_x = ABS(to_x - from_x);
4986     int len_y = ABS(to_y - from_y);
4987     int x, y;
4988
4989     if (len_y < len_x)                  /* a < 1 */
4990     {
4991       float a = (float)len_y / (float)len_x;
4992
4993       if (from_x > to_x)
4994         swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
4995
4996       for (x=0; x<=len_x; x++)
4997       {
4998         y = (int)(a * x + 0.5) * (to_y < from_y ? -1 : +1);
4999         DrawLineElement(from_x + x, from_y + y, element, change_level);
5000       }
5001     }
5002     else                                /* a >= 1 */
5003     {
5004       float a = (float)len_x / (float)len_y;
5005
5006       if (from_y > to_y)
5007         swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
5008
5009       for (y=0; y<=len_y; y++)
5010       {
5011         x = (int)(a * y + 0.5) * (to_x < from_x ? -1 : +1);
5012         DrawLineElement(from_x + x, from_y + y, element, change_level);
5013       }
5014     }
5015   }
5016 }
5017
5018 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
5019                     int element, boolean change_level)
5020 {
5021   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
5022   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
5023   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
5024   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
5025 }
5026
5027 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
5028                           int element, boolean change_level)
5029 {
5030   int y;
5031
5032   if (from_y > to_y)
5033     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
5034
5035   for (y=from_y; y<=to_y; y++)
5036     DrawLine(from_x, y, to_x, y, element, change_level);
5037 }
5038
5039 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
5040                        int element, boolean change_level)
5041 {
5042   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
5043   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
5044   int len_x = ABS(to_x - from_x);
5045   int len_y = ABS(to_y - from_y);
5046   int radius, x, y;
5047
5048   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
5049
5050   /* not optimal (some points get drawn twice) but simple,
5051      and fast enough for the few points we are drawing */
5052
5053   for (x=0; x<=radius; x++)
5054   {
5055     int sx, sy, lx, ly;
5056
5057     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
5058
5059     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
5060     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
5061     lx = sx + level_xpos;
5062     ly = sy + level_ypos;
5063
5064     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
5065       DrawLineElement(sx, sy, element, change_level);
5066   }
5067
5068   for (y=0; y<=radius; y++)
5069   {
5070     int sx, sy, lx, ly;
5071
5072     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
5073
5074     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
5075     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
5076     lx = sx + level_xpos;
5077     ly = sy + level_ypos;
5078
5079     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
5080       DrawLineElement(sx, sy, element, change_level);
5081   }
5082 }
5083
5084 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
5085                     int element, boolean change_level)
5086 {
5087   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
5088   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
5089
5090   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
5091 }
5092
5093 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
5094 #if DRAW_CIRCLES_BUTTON_AVAILABLE
5095 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
5096                        int element, boolean change_level)
5097 {
5098   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
5099   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
5100   int mirror_to_x2 = from_x - (to_x2 - from_x);
5101   int mirror_to_y2 = from_y - (to_y2 - from_y);
5102
5103   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
5104   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
5105   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
5106   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element,change_level);
5107 }
5108 #endif
5109
5110 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
5111 {
5112   int from_sx, from_sy;
5113   int to_sx, to_sy;
5114
5115   if (from_x > to_x)
5116     swap_numbers(&from_x, &to_x);
5117
5118   if (from_y > to_y)
5119     swap_numbers(&from_y, &to_y);
5120
5121   from_sx = SX + from_x * MINI_TILEX;
5122   from_sy = SY + from_y * MINI_TILEY;
5123   to_sx = SX + to_x * MINI_TILEX + MINI_TILEX - 1;
5124   to_sy = SY + to_y * MINI_TILEY + MINI_TILEY - 1;
5125
5126   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
5127   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
5128   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
5129   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
5130
5131   if (from_x == to_x && from_y == to_y)
5132     MarkTileDirty(from_x/2, from_y/2);
5133   else
5134     redraw_mask |= REDRAW_FIELD;
5135 }
5136
5137 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
5138                        int element, boolean change_level)
5139 {
5140   if (element == -1 || change_level)
5141     DrawBox(from_x, from_y, to_x, to_y, -1, FALSE);
5142   else
5143     DrawAreaBorder(from_x, from_y, to_x, to_y);
5144 }
5145
5146 /* values for CopyBrushExt() */
5147 #define CB_AREA_TO_BRUSH        0
5148 #define CB_BRUSH_TO_CURSOR      1
5149 #define CB_BRUSH_TO_LEVEL       2
5150 #define CB_DELETE_OLD_CURSOR    3
5151
5152 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
5153                          int button, int mode)
5154 {
5155   static short brush_buffer[MAX_ED_FIELDX][MAX_ED_FIELDY];
5156   static int brush_width, brush_height;
5157   static int last_cursor_x = -1, last_cursor_y = -1;
5158   static boolean delete_old_brush;
5159   int new_element = BUTTON_ELEMENT(button);
5160   int x, y;
5161
5162   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
5163     return;
5164
5165   if (mode == CB_AREA_TO_BRUSH)
5166   {
5167     int from_lx, from_ly;
5168
5169     if (from_x > to_x)
5170       swap_numbers(&from_x, &to_x);
5171
5172     if (from_y > to_y)
5173       swap_numbers(&from_y, &to_y);
5174
5175     brush_width = to_x - from_x + 1;
5176     brush_height = to_y - from_y + 1;
5177
5178     from_lx = from_x + level_xpos;
5179     from_ly = from_y + level_ypos;
5180
5181     for (y=0; y<brush_height; y++)
5182     {
5183       for (x=0; x<brush_width; x++)
5184       {
5185         brush_buffer[x][y] = Feld[from_lx + x][from_ly + y];
5186
5187         if (button != 1)
5188           DrawLineElement(from_x + x, from_y + y, new_element, TRUE);
5189       }
5190     }
5191
5192     if (button != 1)
5193       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5194
5195     delete_old_brush = FALSE;
5196   }
5197   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
5198            mode == CB_BRUSH_TO_LEVEL)
5199   {
5200     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
5201     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
5202     int cursor_from_x = cursor_x - brush_width / 2;
5203     int cursor_from_y = cursor_y - brush_height / 2;
5204     int border_from_x = cursor_x, border_from_y = cursor_y;
5205     int border_to_x = cursor_x, border_to_y = cursor_y;
5206
5207     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
5208       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
5209
5210     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
5211         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
5212     {
5213       delete_old_brush = FALSE;
5214       return;
5215     }
5216
5217     for (y=0; y<brush_height; y++)
5218     {
5219       for (x=0; x<brush_width; x++)
5220       {
5221         int sx = cursor_from_x + x;
5222         int sy = cursor_from_y + y;
5223         int lx = sx + level_xpos;
5224         int ly = sy + level_ypos;
5225         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
5226         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
5227                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
5228                        brush_buffer[x][y] : new_element);
5229
5230         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
5231         {
5232           if (sx < border_from_x)
5233             border_from_x = sx;
5234           else if (sx > border_to_x)
5235             border_to_x = sx;
5236           if (sy < border_from_y)
5237             border_from_y = sy;
5238           else if (sy > border_to_y)
5239             border_to_y = sy;
5240
5241           DrawLineElement(sx, sy, element, change_level);
5242         }
5243       }
5244     }
5245
5246     if (mode != CB_DELETE_OLD_CURSOR)
5247       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
5248
5249     last_cursor_x = cursor_x;
5250     last_cursor_y = cursor_y;
5251     delete_old_brush = TRUE;
5252   }
5253 }
5254
5255 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
5256                             int button)
5257 {
5258   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
5259 }
5260
5261 static void CopyBrushToLevel(int x, int y, int button)
5262 {
5263   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
5264 }
5265
5266 static void CopyBrushToCursor(int x, int y)
5267 {
5268   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
5269 }
5270
5271 static void DeleteBrushFromCursor()
5272 {
5273   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
5274 }
5275
5276 static void FloodFill(int from_x, int from_y, int fill_element)
5277 {
5278   int i,x,y;
5279   int old_element;
5280   static int check[4][2] = { {-1,0}, {0,-1}, {1,0}, {0,1} };
5281   static int safety = 0;
5282
5283   /* check if starting field still has the desired content */
5284   if (Feld[from_x][from_y] == fill_element)
5285     return;
5286
5287   safety++;
5288
5289   if (safety > lev_fieldx*lev_fieldy)
5290     Error(ERR_EXIT, "Something went wrong in 'FloodFill()'. Please debug.");
5291
5292   old_element = Feld[from_x][from_y];
5293   Feld[from_x][from_y] = fill_element;
5294
5295   for(i=0;i<4;i++)
5296   {
5297     x = from_x + check[i][0];
5298     y = from_y + check[i][1];
5299
5300     if (IN_LEV_FIELD(x,y) && Feld[x][y] == old_element)
5301       FloodFill(x, y, fill_element);
5302   }
5303
5304   safety--;
5305 }
5306
5307 /* values for DrawLevelText() modes */
5308 #define TEXT_INIT               0
5309 #define TEXT_SETCURSOR          1
5310 #define TEXT_WRITECHAR          2
5311 #define TEXT_BACKSPACE          3
5312 #define TEXT_NEWLINE            4
5313 #define TEXT_END                5
5314 #define TEXT_QUERY_TYPING       6
5315
5316 static int DrawLevelText(int sx, int sy, char letter, int mode)
5317 {
5318   static short delete_buffer[MAX_LEV_FIELDX];
5319   static int start_sx, start_sy;
5320   static int last_sx, last_sy;
5321   static boolean typing = FALSE;
5322   int letter_element = EL_CHAR_ASCII0 + letter;
5323   int lx = 0, ly = 0;
5324
5325   /* map lower case letters to upper case and convert special characters */
5326   if (letter >= 'a' && letter <= 'z')
5327     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
5328   else if (letter == 'ä' || letter == 'Ä')
5329     letter_element = EL_CHAR_AUMLAUT;
5330   else if (letter == 'ö' || letter == 'Ö')
5331     letter_element = EL_CHAR_OUMLAUT;
5332   else if (letter == 'ü' || letter == 'Ü')
5333     letter_element = EL_CHAR_UUMLAUT;
5334   else if (letter == '^')
5335     letter_element = EL_CHAR_COPYRIGHT;
5336   else
5337     letter_element = EL_CHAR_ASCII0 + letter;
5338
5339   if (mode != TEXT_INIT)
5340   {
5341     if (!typing)
5342       return FALSE;
5343
5344     if (mode != TEXT_SETCURSOR)
5345     {
5346       sx = last_sx;
5347       sy = last_sy;
5348     }
5349
5350     lx = last_sx + level_xpos;
5351     ly = last_sy + level_ypos;
5352   }
5353
5354   switch (mode)
5355   {
5356     case TEXT_INIT:
5357       if (typing)
5358         DrawLevelText(0, 0, 0, TEXT_END);
5359
5360       typing = TRUE;
5361       start_sx = last_sx = sx;
5362       start_sy = last_sy = sy;
5363       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
5364       break;
5365
5366     case TEXT_SETCURSOR:
5367       DrawMiniElement(last_sx, last_sy, Feld[lx][ly]);
5368       DrawAreaBorder(sx, sy, sx, sy);
5369       last_sx = sx;
5370       last_sy = sy;
5371       break;
5372
5373     case TEXT_WRITECHAR:
5374       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
5375       {
5376         delete_buffer[sx - start_sx] = Feld[lx][ly];
5377         Feld[lx][ly] = letter_element;
5378
5379         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
5380           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
5381         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
5382           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
5383         else
5384           DrawLevelText(0, 0, 0, TEXT_END);
5385       }
5386       break;
5387
5388     case TEXT_BACKSPACE:
5389       if (sx > start_sx)
5390       {
5391         Feld[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
5392         DrawMiniElement(sx - 1, sy, Feld[lx - 1][ly]);
5393         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
5394       }
5395       break;
5396
5397     case TEXT_NEWLINE:
5398       if (sy + 1 < ed_fieldy - 1 && ly + 1 < lev_fieldy - 1)
5399         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
5400       else
5401         DrawLevelText(0, 0, 0, TEXT_END);
5402       break;
5403
5404     case TEXT_END:
5405       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5406       DrawMiniElement(sx, sy, Feld[lx][ly]);
5407       typing = FALSE;
5408       break;
5409
5410     case TEXT_QUERY_TYPING:
5411       break;
5412
5413     default:
5414       break;
5415   }
5416
5417   return typing;
5418 }
5419
5420 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
5421                           int element, boolean change_level)
5422 {
5423   int lx = sx + level_xpos;
5424   int ly = sy + level_ypos;
5425
5426   if (element == -1)
5427     DrawMiniElement(sx, sy, Feld[lx][ly]);
5428   else
5429     DrawAreaBorder(sx, sy, sx, sy);
5430 }
5431
5432 static void CopyLevelToUndoBuffer(int mode)
5433 {
5434   static boolean accumulated_undo = FALSE;
5435   boolean new_undo_buffer_position = TRUE;
5436   int last_border_element;
5437   int x, y;
5438
5439   switch (mode)
5440   {
5441     case UNDO_IMMEDIATE:
5442       accumulated_undo = FALSE;
5443       break;
5444
5445     case UNDO_ACCUMULATE:
5446       if (accumulated_undo)
5447         new_undo_buffer_position = FALSE;
5448       accumulated_undo = TRUE;
5449       break;
5450
5451     default:
5452       break;
5453   }
5454
5455   if (new_undo_buffer_position)
5456   {
5457     /* new position in undo buffer ring */
5458     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
5459
5460     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
5461       undo_buffer_steps++;
5462   }
5463
5464   for(x=0; x<lev_fieldx; x++)
5465     for(y=0; y<lev_fieldy; y++)
5466       UndoBuffer[undo_buffer_position][x][y] = Feld[x][y];
5467
5468   /* check if drawing operation forces change of border style */
5469   last_border_element = BorderElement;
5470   SetBorderElement();
5471   if (BorderElement != last_border_element)
5472     DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5473 }
5474
5475 static void RandomPlacement(int new_element)
5476 {
5477   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
5478   int num_free_positions;
5479   int num_percentage;
5480   int num_elements;
5481   int x, y;
5482
5483   /* determine number of free positions for the new elements */
5484   /* (maybe this statement should be formatted a bit more readable...) */
5485   num_free_positions = 0;
5486   for (x=0; x<lev_fieldx; x++)
5487     for (y=0; y<lev_fieldy; y++)
5488       if ((free_position[x][y] =
5489            ((random_placement_background_restricted &&
5490              Feld[x][y] == random_placement_background_element) ||
5491             (!random_placement_background_restricted &&
5492              Feld[x][y] != new_element))) == TRUE)
5493         num_free_positions++;
5494
5495   /* determine number of new elements to place there */
5496   num_percentage = num_free_positions * random_placement_value / 100;
5497   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
5498                   num_percentage : random_placement_value);
5499
5500   /* if not more free positions than elements to place, fill whole level */
5501   if (num_elements >= num_free_positions)
5502   {
5503     for (x=0; x<lev_fieldx; x++)
5504       for (y=0; y<lev_fieldy; y++)
5505         Feld[x][y] = new_element;
5506
5507     DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5508     CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5509     return;
5510   }
5511
5512   while (num_elements > 0)
5513   {
5514     x = RND(lev_fieldx);
5515     y = RND(lev_fieldy);
5516
5517     /* don't place element at the same position twice */
5518     if (free_position[x][y])
5519     {
5520       free_position[x][y] = FALSE;
5521       Feld[x][y] = new_element;
5522       num_elements--;
5523     }
5524   }
5525
5526   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5527   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5528 }
5529
5530 void WrapLevel(int dx, int dy)
5531 {
5532   int wrap_dx = lev_fieldx - dx;
5533   int wrap_dy = lev_fieldy - dy;
5534   int x, y;
5535
5536   for(x=0; x<lev_fieldx; x++)
5537     for(y=0; y<lev_fieldy; y++)
5538       FieldBackup[x][y] = Feld[x][y];
5539
5540   for(x=0; x<lev_fieldx; x++)
5541     for(y=0; y<lev_fieldy; y++)
5542       Feld[x][y] =
5543         FieldBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
5544
5545   DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5546   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
5547 }
5548
5549 static void HandleDrawingAreas(struct GadgetInfo *gi)
5550 {
5551   static boolean started_inside_drawing_area = FALSE;
5552   int id = gi->custom_id;
5553   boolean button_press_event;
5554   boolean button_release_event;
5555   boolean inside_drawing_area = !gi->event.off_borders;
5556   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
5557   int actual_drawing_function;
5558   int button = gi->event.button;
5559   int new_element = BUTTON_ELEMENT(button);
5560   int sx = gi->event.x, sy = gi->event.y;
5561   int min_sx = 0, min_sy = 0;
5562   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
5563   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
5564   int lx = 0, ly = 0;
5565   int min_lx = 0, min_ly = 0;
5566   int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
5567   int x, y;
5568
5569   /* handle info callback for each invocation of action callback */
5570   gi->callback_info(gi);
5571
5572   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
5573   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
5574
5575   /* make sure to stay inside drawing area boundaries */
5576   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
5577   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
5578
5579   if (draw_level)
5580   {
5581     /* get positions inside level field */
5582     lx = sx + level_xpos;
5583     ly = sy + level_ypos;
5584
5585     if (!IN_LEV_FIELD(lx, ly))
5586       inside_drawing_area = FALSE;
5587
5588     /* make sure to stay inside level field boundaries */
5589     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
5590     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
5591
5592     /* correct drawing area positions accordingly */
5593     sx = lx - level_xpos;
5594     sy = ly - level_ypos;
5595   }
5596
5597   if (button_press_event)
5598     started_inside_drawing_area = inside_drawing_area;
5599
5600   if (!started_inside_drawing_area)
5601     return;
5602
5603   if (!button && !button_release_event)
5604     return;
5605
5606   /* automatically switch to 'single item' drawing mode, if needed */
5607   actual_drawing_function =
5608     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
5609      drawing_function : GADGET_ID_SINGLE_ITEMS);
5610
5611   /* clicking into drawing area with pressed Control key picks element */
5612   if (GetKeyModState() & KMOD_Control)
5613     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
5614
5615   switch (actual_drawing_function)
5616   {
5617     case GADGET_ID_SINGLE_ITEMS:
5618       if (draw_level)
5619       {
5620         if (button_release_event)
5621         {
5622           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5623
5624           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
5625               !inside_drawing_area)
5626             DeleteBrushFromCursor();
5627         }
5628
5629         if (!button)
5630           break;
5631
5632         if (draw_with_brush)
5633         {
5634           if (!button_release_event)
5635             CopyBrushToLevel(sx, sy, button);
5636         }
5637         else if (new_element != Feld[lx][ly])
5638         {
5639           if (new_element == EL_PLAYER_1)
5640           {
5641             /* remove player at old position */
5642             for(y=0; y<lev_fieldy; y++)
5643             {
5644               for(x=0; x<lev_fieldx; x++)
5645               {
5646                 if (Feld[x][y] == EL_PLAYER_1)
5647                 {
5648                   Feld[x][y] = EL_EMPTY;
5649                   if (x - level_xpos >= 0 && x - level_xpos < ed_fieldx &&
5650                       y - level_ypos >= 0 && y - level_ypos < ed_fieldy)
5651                     DrawMiniElement(x - level_xpos, y - level_ypos,
5652                                     EL_EMPTY);
5653                 }
5654               }
5655             }
5656           }
5657
5658           Feld[lx][ly] = new_element;
5659           DrawMiniElement(sx, sy, new_element);
5660         }
5661       }
5662       else
5663       {
5664         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
5665           DrawMiniGraphicExt(drawto,
5666                              gi->x + sx * MINI_TILEX,
5667                              gi->y + sy * MINI_TILEY,
5668                              el2edimg(new_element));
5669         else
5670           DrawGraphicExt(drawto,
5671                          gi->x + sx * TILEX,
5672                          gi->y + sy * TILEY,
5673                          el2img(new_element), 0);
5674
5675         if (id == GADGET_ID_AMOEBA_CONTENT)
5676           level.amoeba_content = new_element;
5677         else if (id == GADGET_ID_CUSTOM_GRAPHIC)
5678         {
5679           new_element = GFX_ELEMENT(new_element);
5680           custom_element.gfx_element = new_element;
5681           element_info[properties_element] = custom_element;
5682
5683           ModifyEditorElementList();
5684           RedrawDrawingElements();
5685
5686           FrameCounter = 0;     /* restart animation frame counter */
5687         }
5688         else if (id == GADGET_ID_CUSTOM_CONTENT)
5689         {
5690           custom_element.content[sx][sy] = new_element;
5691           element_info[properties_element] = custom_element;
5692         }
5693         else if (id == GADGET_ID_CUSTOM_CHANGE_TARGET)
5694         {
5695           custom_element.change.target_element = new_element;
5696           element_info[properties_element] = custom_element;
5697         }
5698         else if (id == GADGET_ID_CUSTOM_CHANGE_CONTENT)
5699         {
5700           custom_element.change.content[sx][sy] = new_element;
5701           element_info[properties_element] = custom_element;
5702         }
5703         else if (id == GADGET_ID_CUSTOM_CHANGE_TRIGGER)
5704         {
5705           custom_element.change.trigger_element = new_element;
5706           element_info[properties_element] = custom_element;
5707         }
5708         else if (id == GADGET_ID_RANDOM_BACKGROUND)
5709           random_placement_background_element = new_element;
5710         else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
5711                  id <= GADGET_ID_ELEMENT_CONTENT_7)
5712           level.yamyam_content[id - GADGET_ID_ELEMENT_CONTENT_0][sx][sy] =
5713             new_element;
5714       }
5715       break;
5716
5717     case GADGET_ID_CONNECTED_ITEMS:
5718       {
5719         static int last_sx = -1;
5720         static int last_sy = -1;
5721
5722         if (button_release_event)
5723           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5724
5725         if (button)
5726         {
5727           if (!button_press_event)
5728             DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
5729
5730           last_sx = sx;
5731           last_sy = sy;
5732         }
5733       }
5734       break;
5735
5736     case GADGET_ID_LINE:
5737     case GADGET_ID_ARC:
5738     case GADGET_ID_RECTANGLE:
5739     case GADGET_ID_FILLED_BOX:
5740     case GADGET_ID_GRAB_BRUSH:
5741     case GADGET_ID_TEXT:
5742       {
5743         static int last_sx = -1;
5744         static int last_sy = -1;
5745         static int start_sx = -1;
5746         static int start_sy = -1;
5747         void (*draw_func)(int, int, int, int, int, boolean);
5748
5749         if (drawing_function == GADGET_ID_LINE)
5750           draw_func = DrawLine;
5751         else if (drawing_function == GADGET_ID_ARC)
5752           draw_func = DrawArc;
5753         else if (drawing_function == GADGET_ID_RECTANGLE)
5754           draw_func = DrawBox;
5755         else if (drawing_function == GADGET_ID_FILLED_BOX)
5756           draw_func = DrawFilledBox;
5757         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
5758           draw_func = SelectArea;
5759         else /* (drawing_function == GADGET_ID_TEXT) */
5760           draw_func = SetTextCursor;
5761
5762         if (button_press_event)
5763         {
5764           draw_func(sx, sy, sx, sy, new_element, FALSE);
5765           start_sx = last_sx = sx;
5766           start_sy = last_sy = sy;
5767
5768           if (drawing_function == GADGET_ID_TEXT)
5769             DrawLevelText(0, 0, 0, TEXT_END);
5770         }
5771         else if (button_release_event)
5772         {
5773           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
5774           if (drawing_function == GADGET_ID_GRAB_BRUSH)
5775           {
5776             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
5777             CopyBrushToCursor(sx, sy);
5778             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
5779                           MB_LEFTBUTTON);
5780             draw_with_brush = TRUE;
5781           }
5782           else if (drawing_function == GADGET_ID_TEXT)
5783             DrawLevelText(sx, sy, 0, TEXT_INIT);
5784           else
5785             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5786         }
5787         else if (last_sx != sx || last_sy != sy)
5788         {
5789           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
5790           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
5791           last_sx = sx;
5792           last_sy = sy;
5793         }
5794       }
5795       break;
5796
5797     case GADGET_ID_FLOOD_FILL:
5798       if (button_press_event && Feld[lx][ly] != new_element)
5799       {
5800         FloodFill(lx, ly, new_element);
5801         DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5802         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
5803       }
5804       break;
5805
5806     case GADGET_ID_PICK_ELEMENT:
5807       if (button_release_event)
5808         ClickOnGadget(level_editor_gadget[last_drawing_function],
5809                       MB_LEFTBUTTON);
5810       else if (draw_level)
5811         PickDrawingElement(button, Feld[lx][ly]);
5812       else if (id == GADGET_ID_AMOEBA_CONTENT)
5813         PickDrawingElement(button, level.amoeba_content);
5814       else if (id == GADGET_ID_CUSTOM_GRAPHIC)
5815         PickDrawingElement(button, custom_element.gfx_element);
5816       else if (id == GADGET_ID_CUSTOM_CONTENT)
5817         PickDrawingElement(button, custom_element.content[sx][sy]);
5818       else if (id == GADGET_ID_CUSTOM_CHANGE_TARGET)
5819         PickDrawingElement(button, custom_element.change.target_element);
5820       else if (id == GADGET_ID_CUSTOM_CHANGE_CONTENT)
5821         PickDrawingElement(button, custom_element.change.content[sx][sy]);
5822       else if (id == GADGET_ID_CUSTOM_CHANGE_TRIGGER)
5823         PickDrawingElement(button, custom_element.change.trigger_element);
5824       else if (id == GADGET_ID_RANDOM_BACKGROUND)
5825         PickDrawingElement(button, random_placement_background_element);
5826       else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
5827                id <= GADGET_ID_ELEMENT_CONTENT_7)
5828       {
5829         int i = id - GADGET_ID_ELEMENT_CONTENT_0;
5830
5831         PickDrawingElement(button, level.yamyam_content[i][sx][sy]);
5832       }
5833
5834       break;
5835
5836     default:
5837       break;
5838   }
5839 }
5840
5841 static void HandleCounterButtons(struct GadgetInfo *gi)
5842 {
5843   int gadget_id = gi->custom_id;
5844   int counter_id = gi->custom_type_id;
5845   int button = gi->event.button;
5846   int *counter_value = counterbutton_info[counter_id].value;
5847   int step = BUTTON_STEPSIZE(button) *
5848     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
5849
5850   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
5851   {
5852     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
5853     boolean released = (gi->event.type == GD_EVENT_RELEASED);
5854     boolean level_changed = LevelChanged();
5855
5856     if ((level_changed && pressed) || (!level_changed && released))
5857       return;
5858
5859     if (level_changed && !Request("Level has changed! Discard changes ?",
5860                                   REQ_ASK))
5861     {
5862       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
5863         ModifyEditorCounter(counter_id, *counter_value);
5864       return;
5865     }
5866   }
5867
5868   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
5869     *counter_value = gi->text.number_value;
5870   else
5871     ModifyEditorCounter(counter_id, *counter_value + step);
5872
5873   switch (counter_id)
5874   {
5875     case ED_COUNTER_ID_ELEMENT_CONTENT:
5876       DrawElementContentAreas();
5877       break;
5878
5879     case ED_COUNTER_ID_LEVEL_XSIZE:
5880     case ED_COUNTER_ID_LEVEL_YSIZE:
5881       lev_fieldx = level.fieldx;
5882       lev_fieldy = level.fieldy;
5883       break;
5884
5885     case ED_COUNTER_ID_SELECT_LEVEL:
5886       LoadLevel(level_nr);
5887       TapeErase();
5888       ResetUndoBuffer();
5889       DrawEditModeWindow();
5890       break;
5891
5892     default:
5893       break;
5894   }
5895
5896   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
5897        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
5898       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
5899        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
5900     CopyCustomElementPropertiesToGame(properties_element);
5901 }
5902
5903 static void HandleTextInputGadgets(struct GadgetInfo *gi)
5904 {
5905   strcpy(textinput_info[gi->custom_type_id].value, gi->text.value);
5906 }
5907
5908 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
5909 {
5910   int type_id = gi->custom_type_id;
5911
5912   *selectbox_info[type_id].value =
5913     selectbox_info[type_id].options[gi->selectbox.index].value;
5914
5915   if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
5916        type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
5917       (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
5918        type_id <= ED_SELECTBOX_ID_CHANGE_LAST))
5919     CopyCustomElementPropertiesToGame(properties_element);
5920 }
5921
5922 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
5923 {
5924   if (gi->custom_type_id >= ED_TEXTBUTTON_ID_PROPERTIES_INFO &&
5925       gi->custom_type_id <= ED_TEXTBUTTON_ID_PROPERTIES_ADVANCED)
5926   {
5927     edit_mode_properties = gi->custom_type_id;
5928
5929     DrawPropertiesWindow();
5930   }
5931 }
5932
5933 static void HandleRadiobuttons(struct GadgetInfo *gi)
5934 {
5935   *radiobutton_info[gi->custom_type_id].value =
5936     radiobutton_info[gi->custom_type_id].checked_value;
5937 }
5938
5939 static void HandleCheckbuttons(struct GadgetInfo *gi)
5940 {
5941   int type_id = gi->custom_type_id;
5942
5943   *checkbutton_info[type_id].value ^= TRUE;
5944
5945   if ((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
5946        type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
5947       (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
5948        type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST))
5949     CopyCustomElementPropertiesToGame(properties_element);
5950
5951   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
5952   {
5953     ModifyEditorElementList();
5954     RedrawDrawingElements();
5955
5956     DrawPropertiesAdvancedDrawingAreas();
5957   }
5958 }
5959
5960 static void HandleControlButtons(struct GadgetInfo *gi)
5961 {
5962   int id = gi->custom_id;
5963   int button = gi->event.button;
5964   int step = BUTTON_STEPSIZE(button);
5965   int new_element = BUTTON_ELEMENT(button);
5966   int x, y;
5967
5968   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
5969     DrawLevelText(0, 0, 0, TEXT_END);
5970
5971   if (id < ED_NUM_CTRL1_BUTTONS && id != GADGET_ID_PROPERTIES &&
5972       id != GADGET_ID_PICK_ELEMENT && edit_mode != ED_MODE_DRAWING &&
5973       drawing_function != GADGET_ID_PICK_ELEMENT &&
5974       !(GetKeyModState() & KMOD_Control))
5975   {
5976     DrawDrawingWindow();
5977     edit_mode = ED_MODE_DRAWING;
5978   }
5979
5980   switch (id)
5981   {
5982     case GADGET_ID_SCROLL_LEFT:
5983       if (level_xpos >= 0)
5984       {
5985         if (lev_fieldx < ed_fieldx - 2)
5986           break;
5987
5988         level_xpos -= step;
5989         if (level_xpos < -1)
5990           level_xpos = -1;
5991         if (button == 1)
5992           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
5993         else
5994           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
5995
5996         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
5997                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
5998       }
5999       break;
6000
6001     case GADGET_ID_SCROLL_RIGHT:
6002       if (level_xpos <= lev_fieldx - ed_fieldx)
6003       {
6004         if (lev_fieldx < ed_fieldx - 2)
6005           break;
6006
6007         level_xpos += step;
6008         if (level_xpos > lev_fieldx - ed_fieldx + 1)
6009           level_xpos = lev_fieldx - ed_fieldx + 1;
6010         if (button == 1)
6011           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
6012         else
6013           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
6014
6015         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
6016                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
6017       }
6018       break;
6019
6020     case GADGET_ID_SCROLL_UP:
6021       if (level_ypos >= 0)
6022       {
6023         if (lev_fieldy < ed_fieldy - 2)
6024           break;
6025
6026         level_ypos -= step;
6027         if (level_ypos < -1)
6028           level_ypos = -1;
6029         if (button == 1)
6030           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
6031         else
6032           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
6033
6034         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
6035                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
6036       }
6037       break;
6038
6039     case GADGET_ID_SCROLL_DOWN:
6040       if (level_ypos <= lev_fieldy - ed_fieldy)
6041       {
6042         if (lev_fieldy < ed_fieldy - 2)
6043           break;
6044
6045         level_ypos += step;
6046         if (level_ypos > lev_fieldy - ed_fieldy + 1)
6047           level_ypos = lev_fieldy - ed_fieldy + 1;
6048         if (button == 1)
6049           ScrollMiniLevel(level_xpos, level_ypos, ED_SCROLL_UP);
6050         else
6051           DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
6052
6053         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
6054                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
6055       }
6056       break;
6057
6058     case GADGET_ID_SCROLL_HORIZONTAL:
6059       level_xpos = gi->event.item_position - 1;
6060       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
6061       break;
6062
6063     case GADGET_ID_SCROLL_VERTICAL:
6064       level_ypos = gi->event.item_position - 1;
6065       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
6066       break;
6067
6068     case GADGET_ID_SCROLL_LIST_UP:
6069     case GADGET_ID_SCROLL_LIST_DOWN:
6070     case GADGET_ID_SCROLL_LIST_VERTICAL:
6071       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
6072         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
6073       else
6074       {
6075         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
6076         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
6077
6078         if (element_shift < 0)
6079           element_shift = 0;
6080         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
6081           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
6082
6083         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
6084                      GDI_SCROLLBAR_ITEM_POSITION,
6085                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
6086       }
6087
6088       ModifyEditorElementList();
6089
6090       break;
6091
6092     case GADGET_ID_WRAP_LEFT:
6093       WrapLevel(-step, 0);
6094       break;
6095
6096     case GADGET_ID_WRAP_RIGHT:
6097       WrapLevel(step, 0);
6098       break;
6099
6100     case GADGET_ID_WRAP_UP:
6101       WrapLevel(0, -step);
6102       break;
6103
6104     case GADGET_ID_WRAP_DOWN:
6105       WrapLevel(0, step);
6106       break;
6107
6108     case GADGET_ID_SINGLE_ITEMS:
6109     case GADGET_ID_CONNECTED_ITEMS:
6110     case GADGET_ID_LINE:
6111     case GADGET_ID_ARC:
6112     case GADGET_ID_TEXT:
6113     case GADGET_ID_RECTANGLE:
6114     case GADGET_ID_FILLED_BOX:
6115     case GADGET_ID_FLOOD_FILL:
6116     case GADGET_ID_GRAB_BRUSH:
6117     case GADGET_ID_PICK_ELEMENT:
6118       if (drawing_function != GADGET_ID_PICK_ELEMENT)
6119         last_drawing_function = drawing_function;
6120       drawing_function = id;
6121       draw_with_brush = FALSE;
6122       break;
6123
6124     case GADGET_ID_RANDOM_PLACEMENT:
6125       RandomPlacement(new_element);
6126       break;
6127
6128     case GADGET_ID_PROPERTIES:
6129       if (edit_mode != ED_MODE_PROPERTIES)
6130       {
6131         properties_element = new_element;
6132         DrawPropertiesWindow();
6133         edit_mode = ED_MODE_PROPERTIES;
6134       }
6135       else
6136       {
6137         DrawDrawingWindow();
6138         edit_mode = ED_MODE_DRAWING;
6139       }
6140       break;
6141
6142     case GADGET_ID_UNDO:
6143       if (undo_buffer_steps == 0)
6144       {
6145         Request("Undo buffer empty !", REQ_CONFIRM);
6146         break;
6147       }
6148
6149       if (edit_mode != ED_MODE_DRAWING)
6150       {
6151         DrawDrawingWindow();
6152         edit_mode = ED_MODE_DRAWING;
6153       }
6154
6155       undo_buffer_position =
6156         (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
6157       undo_buffer_steps--;
6158
6159       for(x=0; x<lev_fieldx; x++)
6160         for(y=0; y<lev_fieldy; y++)
6161           Feld[x][y] = UndoBuffer[undo_buffer_position][x][y];
6162       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos,level_ypos);
6163       break;
6164
6165     case GADGET_ID_INFO:
6166       if (edit_mode != ED_MODE_INFO)
6167       {
6168         DrawLevelInfoWindow();
6169         edit_mode = ED_MODE_INFO;
6170       }
6171       else
6172       {
6173         DrawDrawingWindow();
6174         edit_mode = ED_MODE_DRAWING;
6175       }
6176       break;
6177
6178     case GADGET_ID_CLEAR:
6179       if (edit_mode != ED_MODE_DRAWING)
6180       {
6181         DrawDrawingWindow();
6182         edit_mode = ED_MODE_DRAWING;
6183       }
6184
6185       for(x=0; x<MAX_LEV_FIELDX; x++)
6186         for(y=0; y<MAX_LEV_FIELDY; y++)
6187           Feld[x][y] = (button == 1 ? EL_EMPTY : new_element);
6188       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
6189
6190       DrawMiniLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
6191       break;
6192
6193     case GADGET_ID_SAVE:
6194       if (leveldir_current->readonly)
6195       {
6196         Request("This level is read only !", REQ_CONFIRM);
6197         break;
6198       }
6199
6200       if (!LevelContainsPlayer)
6201         Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
6202       else
6203       {
6204         if (Request("Save this level and kill the old ?", REQ_ASK))
6205         {
6206           CopyPlayfield(Feld, Ur);
6207
6208           SaveLevel(level_nr);
6209         }
6210       }
6211       break;
6212
6213     case GADGET_ID_TEST:
6214       if (!LevelContainsPlayer)
6215         Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
6216       else
6217       {
6218         if (LevelChanged())
6219           level.game_version = GAME_VERSION_ACTUAL;
6220
6221         CopyPlayfield(Ur, FieldBackup);
6222         CopyPlayfield(Feld, Ur);
6223
6224         UnmapLevelEditorGadgets();
6225         UndrawSpecialEditorDoor();
6226
6227         CloseDoor(DOOR_CLOSE_ALL);
6228
6229         DrawCompleteVideoDisplay();
6230
6231         if (setup.autorecord)
6232           TapeStartRecording();
6233
6234         level_editor_test_game = TRUE;
6235         game_status = GAME_MODE_PLAYING;
6236
6237         InitGame();
6238       }
6239       break;
6240
6241     case GADGET_ID_EXIT:
6242       RequestExitLevelEditor(TRUE);     /* if level has changed, ask user */
6243       break;
6244
6245     default:
6246       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
6247           id <= GADGET_ID_ELEMENTLIST_LAST)
6248       {
6249         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
6250         int new_element = editor_elements[element_position + element_shift];
6251
6252         PickDrawingElement(button, new_element);
6253
6254         if (!stick_element_properties_window &&
6255             drawing_function != GADGET_ID_PICK_ELEMENT &&
6256             !(GetKeyModState() & KMOD_Control))
6257         {
6258           properties_element = new_element;
6259           if (edit_mode == ED_MODE_PROPERTIES)
6260             DrawPropertiesWindow();
6261         }
6262
6263         if (drawing_function == GADGET_ID_PICK_ELEMENT)
6264           ClickOnGadget(level_editor_gadget[last_drawing_function],
6265                         MB_LEFTBUTTON);
6266       }
6267 #ifdef DEBUG
6268       else if (gi->event.type == GD_EVENT_PRESSED)
6269         printf("default: HandleControlButtons: GD_EVENT_PRESSED(%d)\n", id);
6270       else if (gi->event.type == GD_EVENT_RELEASED)
6271         printf("default: HandleControlButtons: GD_EVENT_RELEASED(%d)\n", id);
6272       else if (gi->event.type == GD_EVENT_MOVING)
6273         printf("default: HandleControlButtons: GD_EVENT_MOVING(%d)\n", id);
6274       else
6275         printf("default: HandleControlButtons: ? (id == %d)\n", id);
6276 #endif
6277       break;
6278   }
6279 }
6280
6281 void HandleLevelEditorKeyInput(Key key)
6282 {
6283   char letter = getCharFromKey(key);
6284   int button = MB_LEFTBUTTON;
6285
6286   if (drawing_function == GADGET_ID_TEXT &&
6287       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
6288   {
6289     if (letter)
6290       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
6291     else if (key == KSYM_Delete || key == KSYM_BackSpace)
6292       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
6293     else if (key == KSYM_Return)
6294       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
6295     else if (key == KSYM_Escape)
6296       DrawLevelText(0, 0, 0, TEXT_END);
6297   }
6298   else if (button_status == MB_RELEASED)
6299   {
6300     int i, id = GADGET_ID_NONE;
6301
6302     switch (key)
6303     {
6304       case KSYM_Left:
6305         id = GADGET_ID_SCROLL_LEFT;
6306         break;
6307       case KSYM_Right:
6308         id = GADGET_ID_SCROLL_RIGHT;
6309         break;
6310       case KSYM_Up:
6311         id = GADGET_ID_SCROLL_UP;
6312         break;
6313       case KSYM_Down:
6314         id = GADGET_ID_SCROLL_DOWN;
6315         break;
6316       case KSYM_Page_Up:
6317         id = GADGET_ID_SCROLL_LIST_UP;
6318         button = MB_RIGHTBUTTON;
6319         break;
6320       case KSYM_Page_Down:
6321         id = GADGET_ID_SCROLL_LIST_DOWN;
6322         button = MB_RIGHTBUTTON;
6323         break;
6324
6325       case KSYM_Escape:
6326         if (edit_mode == ED_MODE_DRAWING)
6327         {
6328           RequestExitLevelEditor(setup.ask_on_escape);
6329         }
6330         else
6331         {
6332           DrawDrawingWindow();
6333           edit_mode = ED_MODE_DRAWING;
6334         }
6335         break;
6336
6337       default:
6338         break;
6339     }
6340
6341     if (id != GADGET_ID_NONE)
6342       ClickOnGadget(level_editor_gadget[id], button);
6343     else if (letter == '.')
6344       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
6345     else if (key == KSYM_Return || key == setup.shortcut.toggle_pause)
6346       ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
6347     else
6348       for (i=0; i<ED_NUM_CTRL_BUTTONS; i++)
6349         if (letter && letter == control_info[i].shortcut)
6350           if (!anyTextGadgetActive())
6351             ClickOnGadget(level_editor_gadget[i], button);
6352   }
6353 }
6354
6355 void HandleLevelEditorIdle()
6356 {
6357   static unsigned long action_delay = 0;
6358   unsigned long action_delay_value = GameFrameDelay;
6359   int xpos = 1, ypos = 2;
6360
6361   if (edit_mode != ED_MODE_PROPERTIES)
6362     return;
6363
6364   if (!DelayReached(&action_delay, action_delay_value))
6365     return;
6366
6367   DrawGraphicAnimationExt(drawto,
6368                           SX + xpos * TILEX,
6369                           SY + ypos * TILEY + MINI_TILEY / 2,
6370                           el2img(properties_element), -1, NO_MASKING);
6371
6372   MarkTileDirty(xpos, ypos);
6373   MarkTileDirty(xpos, ypos + 1);
6374
6375   FrameCounter++;       /* increase animation frame counter */
6376 }
6377
6378 void ClearEditorGadgetInfoText()
6379 {
6380   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
6381 }
6382
6383 void HandleEditorGadgetInfoText(void *ptr)
6384 {
6385   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
6386   char infotext[MAX_OUTPUT_LINESIZE + 1];
6387   char shortcut[MAX_OUTPUT_LINESIZE + 1];
6388   int max_infotext_len = getMaxInfoTextLength();
6389
6390   if (game_status != GAME_MODE_EDITOR)
6391     return;
6392
6393   ClearEditorGadgetInfoText();
6394
6395   if (gi->event.type == GD_EVENT_INFO_LEAVING)
6396     return;
6397
6398   /* misuse this function to delete brush cursor, if needed */
6399   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
6400     DeleteBrushFromCursor();
6401
6402   if (gi == NULL || gi->info_text == NULL)
6403     return;
6404
6405   strncpy(infotext, gi->info_text, max_infotext_len);
6406   infotext[max_infotext_len] = '\0';
6407
6408   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
6409   {
6410     int key = control_info[gi->custom_id].shortcut;
6411
6412     if (key)
6413     {
6414       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)      /* special case 1 */
6415         sprintf(shortcut, " ('.' or '%c')", key);
6416       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT) /* special case 2 */
6417         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
6418       else if (gi->custom_id == GADGET_ID_TEST)         /* special case 3 */
6419         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
6420       else                                              /* normal case */
6421         sprintf(shortcut, " ('%s%c')",
6422                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
6423
6424       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
6425         strcat(infotext, shortcut);
6426     }
6427   }
6428
6429   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, FONT_TEXT_2);
6430 }
6431
6432 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
6433 {
6434   static int start_lx, start_ly;
6435   char *infotext;
6436   int id = gi->custom_id;
6437   int sx = gi->event.x;
6438   int sy = gi->event.y;
6439   int lx = sx + level_xpos;
6440   int ly = sy + level_ypos;
6441   int min_sx = 0, min_sy = 0;
6442   int max_sx = gi->drawing.area_xsize - 1;
6443   int max_sy = gi->drawing.area_ysize - 1;
6444   int actual_drawing_function = drawing_function;
6445
6446   /* pressed Control key: simulate picking element */
6447   if (GetKeyModState() & KMOD_Control)
6448     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
6449
6450   ClearEditorGadgetInfoText();
6451
6452   if (gi->event.type == GD_EVENT_INFO_LEAVING)
6453     return;
6454
6455   /* make sure to stay inside drawing area boundaries */
6456   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
6457   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
6458
6459   if (id == GADGET_ID_DRAWING_LEVEL)
6460   {
6461     if (button_status)
6462     {
6463       int min_lx = 0, min_ly = 0;
6464       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
6465
6466       /* get positions inside level field */
6467       lx = sx + level_xpos;
6468       ly = sy + level_ypos;
6469
6470       /* make sure to stay inside level field boundaries */
6471       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
6472       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
6473
6474       /* correct drawing area positions accordingly */
6475       sx = lx - level_xpos;
6476       sy = ly - level_ypos;
6477     }
6478
6479     if (IN_ED_FIELD(sx,sy) && IN_LEV_FIELD(lx, ly))
6480     {
6481       if (button_status)        /* if (gi->state == GD_BUTTON_PRESSED) */
6482       {
6483         if (gi->event.type == GD_EVENT_PRESSED)
6484         {
6485           start_lx = lx;
6486           start_ly = ly;
6487         }
6488
6489         switch (actual_drawing_function)
6490         {
6491           case GADGET_ID_SINGLE_ITEMS:
6492             infotext = "Drawing single items";
6493             break;
6494           case GADGET_ID_CONNECTED_ITEMS:
6495             infotext = "Drawing connected items";
6496             break;
6497           case GADGET_ID_LINE:
6498             infotext = "Drawing line";
6499             break;
6500           case GADGET_ID_ARC:
6501             infotext = "Drawing arc";
6502             break;
6503           case GADGET_ID_TEXT:
6504             infotext = "Setting text cursor";
6505             break;
6506           case GADGET_ID_RECTANGLE:
6507             infotext = "Drawing rectangle";
6508             break;
6509           case GADGET_ID_FILLED_BOX:
6510             infotext = "Drawing filled box";
6511             break;
6512           case GADGET_ID_FLOOD_FILL:
6513             infotext = "Flood fill";
6514             break;
6515           case GADGET_ID_GRAB_BRUSH:
6516             infotext = "Grabbing brush";
6517             break;
6518           case GADGET_ID_PICK_ELEMENT:
6519             infotext = "Picking element";
6520             break;
6521
6522           default:
6523             infotext = "Drawing position";
6524             break;
6525         }
6526
6527         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
6528           DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6529                     "%s: %d, %d", infotext, lx, ly);
6530         else
6531           DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6532                     "%s: %d, %d", infotext,
6533                     ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
6534       }
6535       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
6536         DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6537                   "%s", getElementInfoText(Feld[lx][ly]));
6538       else
6539         DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6540                   "Level position: %d, %d", lx, ly);
6541     }
6542
6543     /* misuse this function to draw brush cursor, if needed */
6544     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
6545     {
6546       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
6547         CopyBrushToCursor(sx, sy);
6548       else
6549         DeleteBrushFromCursor();
6550     }
6551   }
6552   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
6553   {
6554     if (id == GADGET_ID_AMOEBA_CONTENT)
6555       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2, "%s",
6556                 getElementInfoText(level.amoeba_content));
6557     else if (id == GADGET_ID_CUSTOM_GRAPHIC)
6558       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2, "%s",
6559                 getElementInfoText(custom_element.gfx_element));
6560     else if (id == GADGET_ID_CUSTOM_CONTENT)
6561       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2, "%s",
6562                 getElementInfoText(custom_element.content[sx][sy]));
6563     else if (id == GADGET_ID_CUSTOM_CHANGE_TARGET)
6564       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2, "%s",
6565                 getElementInfoText(custom_element.change.target_element));
6566     else if (id == GADGET_ID_CUSTOM_CHANGE_CONTENT)
6567       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2, "%s",
6568                 getElementInfoText(custom_element.change.content[sx][sy]));
6569     else if (id == GADGET_ID_CUSTOM_CHANGE_TRIGGER)
6570       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2, "%s",
6571                 getElementInfoText(custom_element.change.trigger_element));
6572     else if (id == GADGET_ID_RANDOM_BACKGROUND)
6573       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2, "%s",
6574                 getElementInfoText(random_placement_background_element));
6575     else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
6576              id <= GADGET_ID_ELEMENT_CONTENT_7)
6577     {
6578       int i = id - GADGET_ID_ELEMENT_CONTENT_0;
6579
6580       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2, "%s",
6581                 getElementInfoText(level.yamyam_content[i][sx][sy]));
6582     }
6583   }
6584   else
6585   {
6586     if (id == GADGET_ID_AMOEBA_CONTENT)
6587       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6588                 "Amoeba content");
6589     else if (id == GADGET_ID_CUSTOM_GRAPHIC)
6590       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6591                 "Custom graphic element");
6592     else if (id == GADGET_ID_CUSTOM_CONTENT)
6593       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6594                 "Custom element content position: %d, %d", sx, sy);
6595     else if (id == GADGET_ID_CUSTOM_CHANGE_TARGET)
6596       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6597                 "New element after change");
6598     else if (id == GADGET_ID_CUSTOM_CHANGE_CONTENT)
6599       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6600                 "New extended elements after change");
6601     else if (id == GADGET_ID_CUSTOM_CHANGE_TRIGGER)
6602       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6603                 "Other element triggering change");
6604     else if (id == GADGET_ID_RANDOM_BACKGROUND)
6605       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6606                 "Random placement background");
6607     else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
6608              id <= GADGET_ID_ELEMENT_CONTENT_7)
6609       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
6610                 "Content area %d position: %d, %d",
6611                 id - GADGET_ID_ELEMENT_CONTENT_0 + 1, sx, sy);
6612   }
6613 }
6614
6615 void RequestExitLevelEditor(boolean ask_if_level_has_changed)
6616 {
6617   if (!ask_if_level_has_changed ||
6618       !LevelChanged() ||
6619       Request("Level has changed! Exit without saving ?",
6620               REQ_ASK | REQ_STAY_OPEN))
6621   {
6622     CloseDoor(DOOR_CLOSE_1);
6623     /*
6624     CloseDoor(DOOR_CLOSE_ALL);
6625     */
6626     game_status = GAME_MODE_MAIN;
6627     DrawMainMenu();
6628   }
6629   else
6630   {
6631     CloseDoor(DOOR_CLOSE_1);
6632     BlitBitmap(bitmap_db_door, bitmap_db_door,
6633                DOOR_GFX_PAGEX2, DOOR_GFX_PAGEY1, DXSIZE,DYSIZE,
6634                DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
6635     OpenDoor(DOOR_OPEN_1);
6636   }
6637 }