src/editor.c

   1 // ============================================================================
   2 // Rocks'n'Diamonds - McDuffin Strikes Back!
   3 // ----------------------------------------------------------------------------
   4 // (c) 1995-2014 by Artsoft Entertainment
   5 //                  Holger Schemel
   6 //                  info@artsoft.org
   7 //                  http://www.artsoft.org/
   8 // ----------------------------------------------------------------------------
   9 // editor.c
  10 // ============================================================================
  11
  12 #include <math.h>
  13
  14 #include "libgame/libgame.h"
  15
  16 #include "editor.h"
  17 #include "screens.h"
  18 #include "tools.h"
  19 #include "files.h"
  20 #include "game.h"
  21 #include "init.h"
  22 #include "tape.h"
  23
  24
  25 #define INFOTEXT_UNKNOWN_ELEMENT        "unknown"
  26
  27
  28 /*
  29   -----------------------------------------------------------------------------
  30   screen and artwork graphic pixel position definitions
  31   -----------------------------------------------------------------------------
  32 */
  33
  34 /* values for the control window */
  35 #define ED_CTRL1_BUTTONS_HORIZ          4
  36 #define ED_CTRL1_BUTTONS_VERT           4
  37 #define ED_CTRL2_BUTTONS_HORIZ          3
  38 #define ED_CTRL2_BUTTONS_VERT           2
  39 #define ED_CTRL3_BUTTONS_HORIZ          3
  40 #define ED_CTRL3_BUTTONS_VERT           1
  41 #define ED_CTRL4_BUTTONS_HORIZ          2
  42 #define ED_CTRL4_BUTTONS_VERT           1
  43 #define ED_CTRL5_BUTTONS_HORIZ          1
  44 #define ED_CTRL5_BUTTONS_VERT           1
  45
  46 #define ED_NUM_CTRL1_BUTTONS   (ED_CTRL1_BUTTONS_HORIZ * ED_CTRL1_BUTTONS_VERT)
  47 #define ED_NUM_CTRL2_BUTTONS   (ED_CTRL2_BUTTONS_HORIZ * ED_CTRL2_BUTTONS_VERT)
  48 #define ED_NUM_CTRL3_BUTTONS   (ED_CTRL3_BUTTONS_HORIZ * ED_CTRL3_BUTTONS_VERT)
  49 #define ED_NUM_CTRL4_BUTTONS   (ED_CTRL4_BUTTONS_HORIZ * ED_CTRL4_BUTTONS_VERT)
  50 #define ED_NUM_CTRL5_BUTTONS   (ED_CTRL5_BUTTONS_HORIZ * ED_CTRL5_BUTTONS_VERT)
  51 #define ED_NUM_CTRL1_2_BUTTONS (ED_NUM_CTRL1_BUTTONS   + ED_NUM_CTRL2_BUTTONS)
  52 #define ED_NUM_CTRL1_3_BUTTONS (ED_NUM_CTRL1_2_BUTTONS + ED_NUM_CTRL3_BUTTONS)
  53 #define ED_NUM_CTRL1_4_BUTTONS (ED_NUM_CTRL1_3_BUTTONS + ED_NUM_CTRL4_BUTTONS)
  54 #define ED_NUM_CTRL_BUTTONS    (ED_NUM_CTRL1_4_BUTTONS + ED_NUM_CTRL5_BUTTONS)
  55
  56 /* values for the element list */
  57 #define ED_ELEMENTLIST_XPOS             (editor.palette.x)
  58 #define ED_ELEMENTLIST_YPOS             (editor.palette.y)
  59 #define ED_ELEMENTLIST_XSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].width)
  60 #define ED_ELEMENTLIST_YSIZE            (graphic_info[IMG_EDITOR_PALETTE_BUTTON].height)
  61 #define ED_ELEMENTLIST_BUTTONS_HORIZ    (editor.palette.cols)
  62 #define ED_ELEMENTLIST_BUTTONS_VERT     (editor.palette.rows)
  63 #define ED_NUM_ELEMENTLIST_BUTTONS      (ED_ELEMENTLIST_BUTTONS_HORIZ * \
  64                                          ED_ELEMENTLIST_BUTTONS_VERT)
  65
  66 /* standard distances */
  67 #define ED_BORDER_SIZE                  3
  68 #define ED_BORDER_TEXT_XSIZE            5
  69 #define ED_BORDER_AREA_YSIZE            1
  70 #define ED_ELEMENT_BORDER               8
  71 #define ED_ELEMENT_BORDER_INPUT         4
  72
  73 #define ED_GADGET_DISTANCE              2
  74 #define ED_GADGET_TEXT_DISTANCE         (2 * ED_GADGET_DISTANCE)
  75 #define ED_DRAWINGAREA_TEXT_DISTANCE    (ED_GADGET_TEXT_DISTANCE +      \
  76                                          MINI_TILEX / 2)
  77
  78 /* values for the settings windows */
  79 #define ED_LEVEL_SETTINGS_XSTART        (3 * MINI_TILEX / 2)
  80 #define ED_LEVEL_SETTINGS_YSTART        (7 * MINI_TILEY)
  81
  82 #define ED_ELEMENT_SETTINGS_XSTART      (3 * MINI_TILEX / 2)
  83 #define ED_ELEMENT_SETTINGS_YSTART      (10 * MINI_TILEY)
  84
  85 #define ED_XOFFSET_CHECKBOX             (ED_CHECKBUTTON_XSIZE +         \
  86                                          2 * ED_GADGET_DISTANCE)
  87
  88 #define ED_SETTINGS_XOFFSET             ED_XOFFSET_CHECKBOX
  89 #define ED_SETTINGS_YOFFSET             (3 * MINI_TILEY / 2)
  90 #define ED_SETTINGS_TAB_XOFFSET         124
  91
  92 #define ED_LEVEL_SETTINGS_XPOS(n)       (ED_LEVEL_SETTINGS_XSTART +     \
  93                                          (n) * ED_SETTINGS_XOFFSET)
  94 #define ED_LEVEL_SETTINGS_YPOS(n)       (ED_LEVEL_SETTINGS_YSTART +     \
  95                                          (n) * ED_SETTINGS_YOFFSET)
  96
  97 #define ED_ELEMENT_SETTINGS_XPOS(n)     (ED_ELEMENT_SETTINGS_XSTART +   \
  98                                          (n) * ED_SETTINGS_XOFFSET)
  99 #define ED_ELEMENT_SETTINGS_YPOS(n)     (ED_ELEMENT_SETTINGS_YSTART +   \
 100                                          (n) * ED_SETTINGS_YOFFSET)
 101
 102 #define ED_LEVEL_SETTINGS_TABS_XPOS(n)  (ED_LEVEL_SETTINGS_XPOS(0) +    \
 103                                         (n) * ED_SETTINGS_TAB_XOFFSET)
 104 #define ED_LEVEL_SETTINGS_TABS_YPOS(n)  (ED_LEVEL_SETTINGS_YSTART -     \
 105                                          3 * MINI_TILEY)
 106
 107 #define ED_ELEMENT_SETTINGS_TABS_XPOS(n) (ED_ELEMENT_SETTINGS_XPOS(0) + \
 108                                          (n) * ED_SETTINGS_TAB_XOFFSET)
 109 #define ED_ELEMENT_SETTINGS_TABS_YPOS(n) (ED_ELEMENT_SETTINGS_YSTART -  \
 110                                          2 * MINI_TILEY)
 111
 112 #define ED_SETTINGS1_YPOS               MINI_TILEY
 113
 114 /* values for element content drawing areas */
 115 #define ED_AREA_1X1_SETTINGS_XPOS(n)    (ED_ELEMENT_SETTINGS_XPOS(n))
 116 #define ED_AREA_1X1_SETTINGS_YPOS(n)    (ED_ELEMENT_SETTINGS_YPOS(n) +  \
 117                                          ED_GADGET_DISTANCE)
 118
 119 #define ED_AREA_3X3_SETTINGS_XPOS(n)    (ED_ELEMENT_SETTINGS_XPOS(n))
 120 #define ED_AREA_3X3_SETTINGS_YPOS(n)    (ED_ELEMENT_SETTINGS_YPOS(n) +  \
 121                                          ED_GADGET_DISTANCE - MINI_TILEY)
 122
 123 /* yamyam content */
 124 #define ED_AREA_YAMYAM_CONTENT_XPOS(n)  (2 * MINI_TILEX +               \
 125                                          5 * ((n) % 4) * MINI_TILEX)
 126 #define ED_AREA_YAMYAM_CONTENT_YPOS(n)  (11 * ED_SETTINGS_YOFFSET +     \
 127                                          6 * ((n) / 4) * MINI_TILEY)
 128
 129 /* magic ball content */
 130 #define ED_AREA_MAGIC_BALL_CONTENT_XPOS(n) (2 * MINI_TILEX +            \
 131                                             5 * ((n) % 4) * MINI_TILEX)
 132 #define ED_AREA_MAGIC_BALL_CONTENT_YPOS(n) (12 * ED_SETTINGS_YOFFSET +  \
 133                                             6 * ((n) / 4) * MINI_TILEY)
 134
 135 /* values for scrolling gadgets for drawing area */
 136 #define ED_SCROLLBUTTON_XSIZE           16
 137 #define ED_SCROLLBUTTON_YSIZE           16
 138
 139 #define ED_SCROLL_UP_XPOS               (SXSIZE - ED_SCROLLBUTTON_XSIZE)
 140 #define ED_SCROLL_UP_YPOS               (0)
 141 #define ED_SCROLL_DOWN_XPOS             ED_SCROLL_UP_XPOS
 142 #define ED_SCROLL_DOWN_YPOS             (SYSIZE - 3 * ED_SCROLLBUTTON_YSIZE)
 143 #define ED_SCROLL_LEFT_XPOS             (0)
 144 #define ED_SCROLL_LEFT_YPOS             (SYSIZE - 2 * ED_SCROLLBUTTON_YSIZE)
 145 #define ED_SCROLL_RIGHT_XPOS            (SXSIZE - 2 * ED_SCROLLBUTTON_XSIZE)
 146 #define ED_SCROLL_RIGHT_YPOS            ED_SCROLL_LEFT_YPOS
 147 #define ED_SCROLL_HORIZONTAL_XPOS       (ED_SCROLL_LEFT_XPOS +          \
 148                                          ED_SCROLLBUTTON_XSIZE)
 149 #define ED_SCROLL_HORIZONTAL_YPOS       ED_SCROLL_LEFT_YPOS
 150 #define ED_SCROLL_HORIZONTAL_XSIZE      (SXSIZE - 3 * ED_SCROLLBUTTON_XSIZE)
 151 #define ED_SCROLL_HORIZONTAL_YSIZE      ED_SCROLLBUTTON_YSIZE
 152 #define ED_SCROLL_VERTICAL_XPOS         ED_SCROLL_UP_XPOS
 153 #define ED_SCROLL_VERTICAL_YPOS         (ED_SCROLL_UP_YPOS +            \
 154                                          ED_SCROLLBUTTON_YSIZE)
 155 #define ED_SCROLL_VERTICAL_XSIZE        ED_SCROLLBUTTON_XSIZE
 156 #define ED_SCROLL_VERTICAL_YSIZE        (SYSIZE - 4 * ED_SCROLLBUTTON_YSIZE)
 157
 158 /* values for scrolling gadgets for element list */
 159 #define ED_SCROLLBUTTON2_XSIZE          (graphic_info[IMG_EDITOR_PALETTE_SCROLL_UP].width)
 160 #define ED_SCROLLBUTTON2_YSIZE          (graphic_info[IMG_EDITOR_PALETTE_SCROLL_UP].height)
 161
 162 #define ED_SCROLL2_UP_XPOS              (ED_ELEMENTLIST_XPOS +          \
 163                                          ED_ELEMENTLIST_BUTTONS_HORIZ * \
 164                                          ED_ELEMENTLIST_XSIZE)
 165 #define ED_SCROLL2_UP_YPOS              ED_ELEMENTLIST_YPOS
 166 #define ED_SCROLL2_DOWN_XPOS            ED_SCROLL2_UP_XPOS
 167 #define ED_SCROLL2_DOWN_YPOS            (ED_SCROLL2_UP_YPOS +           \
 168                                          ED_ELEMENTLIST_BUTTONS_VERT *  \
 169                                          ED_ELEMENTLIST_YSIZE -         \
 170                                          ED_SCROLLBUTTON2_YSIZE)
 171 #define ED_SCROLL2_VERTICAL_XPOS        ED_SCROLL2_UP_XPOS
 172 #define ED_SCROLL2_VERTICAL_YPOS        (ED_SCROLL2_UP_YPOS +           \
 173                                          ED_SCROLLBUTTON2_YSIZE)
 174 #define ED_SCROLL2_VERTICAL_XSIZE       ED_SCROLLBUTTON2_XSIZE
 175 #define ED_SCROLL2_VERTICAL_YSIZE       (ED_ELEMENTLIST_BUTTONS_VERT *  \
 176                                          ED_ELEMENTLIST_YSIZE -         \
 177                                          2 * ED_SCROLLBUTTON2_YSIZE)
 178
 179 /* values for checkbutton gadgets */
 180 #define ED_CHECKBUTTON_XSIZE            20
 181 #define ED_CHECKBUTTON_YSIZE            20
 182
 183 /* values for ClearEditorGadgetInfoText() and HandleEditorGadgetInfoText() */
 184 #define INFOTEXT_XPOS                   SX
 185 #define INFOTEXT_YPOS                   (SY + SYSIZE - MINI_TILEX + 2)
 186 #define INFOTEXT_XSIZE                  SXSIZE
 187 #define INFOTEXT_YSIZE                  MINI_TILEY
 188
 189
 190 /*
 191   -----------------------------------------------------------------------------
 192   editor gadget definitions
 193   -----------------------------------------------------------------------------
 194 */
 195
 196 /* drawing toolbox buttons */
 197 #define GADGET_ID_NONE                  -1
 198 #define GADGET_ID_TOOLBOX_FIRST         0
 199
 200 #define GADGET_ID_SINGLE_ITEMS          (GADGET_ID_TOOLBOX_FIRST + 0)
 201 #define GADGET_ID_CONNECTED_ITEMS       (GADGET_ID_TOOLBOX_FIRST + 1)
 202 #define GADGET_ID_LINE                  (GADGET_ID_TOOLBOX_FIRST + 2)
 203 #define GADGET_ID_ARC                   (GADGET_ID_TOOLBOX_FIRST + 3)
 204 #define GADGET_ID_RECTANGLE             (GADGET_ID_TOOLBOX_FIRST + 4)
 205 #define GADGET_ID_FILLED_BOX            (GADGET_ID_TOOLBOX_FIRST + 5)
 206 #define GADGET_ID_WRAP_UP               (GADGET_ID_TOOLBOX_FIRST + 6)
 207 #define GADGET_ID_TEXT                  (GADGET_ID_TOOLBOX_FIRST + 7)
 208 #define GADGET_ID_FLOOD_FILL            (GADGET_ID_TOOLBOX_FIRST + 8)
 209 #define GADGET_ID_WRAP_LEFT             (GADGET_ID_TOOLBOX_FIRST + 9)
 210 #define GADGET_ID_ZOOM                  (GADGET_ID_TOOLBOX_FIRST + 10)
 211 #define GADGET_ID_WRAP_RIGHT            (GADGET_ID_TOOLBOX_FIRST + 11)
 212 #define GADGET_ID_RANDOM_PLACEMENT      (GADGET_ID_TOOLBOX_FIRST + 12)
 213 #define GADGET_ID_GRAB_BRUSH            (GADGET_ID_TOOLBOX_FIRST + 13)
 214 #define GADGET_ID_WRAP_DOWN             (GADGET_ID_TOOLBOX_FIRST + 14)
 215 #define GADGET_ID_PICK_ELEMENT          (GADGET_ID_TOOLBOX_FIRST + 15)
 216
 217 #define GADGET_ID_UNDO                  (GADGET_ID_TOOLBOX_FIRST + 16)
 218 #define GADGET_ID_INFO                  (GADGET_ID_TOOLBOX_FIRST + 17)
 219 #define GADGET_ID_SAVE                  (GADGET_ID_TOOLBOX_FIRST + 18)
 220 #define GADGET_ID_CLEAR                 (GADGET_ID_TOOLBOX_FIRST + 19)
 221 #define GADGET_ID_TEST                  (GADGET_ID_TOOLBOX_FIRST + 20)
 222 #define GADGET_ID_EXIT                  (GADGET_ID_TOOLBOX_FIRST + 21)
 223
 224 #define GADGET_ID_CUSTOM_COPY_FROM      (GADGET_ID_TOOLBOX_FIRST + 22)
 225 #define GADGET_ID_CUSTOM_COPY_TO        (GADGET_ID_TOOLBOX_FIRST + 23)
 226 #define GADGET_ID_CUSTOM_EXCHANGE       (GADGET_ID_TOOLBOX_FIRST + 24)
 227 #define GADGET_ID_CUSTOM_COPY           (GADGET_ID_TOOLBOX_FIRST + 25)
 228 #define GADGET_ID_CUSTOM_PASTE          (GADGET_ID_TOOLBOX_FIRST + 26)
 229
 230 #define GADGET_ID_PROPERTIES            (GADGET_ID_TOOLBOX_FIRST + 27)
 231
 232 /* counter gadget identifiers */
 233 #define GADGET_ID_COUNTER_FIRST         (GADGET_ID_TOOLBOX_FIRST + 28)
 234
 235 #define GADGET_ID_SELECT_LEVEL_DOWN     (GADGET_ID_COUNTER_FIRST + 0)
 236 #define GADGET_ID_SELECT_LEVEL_TEXT     (GADGET_ID_COUNTER_FIRST + 1)
 237 #define GADGET_ID_SELECT_LEVEL_UP       (GADGET_ID_COUNTER_FIRST + 2)
 238 #define GADGET_ID_LEVEL_XSIZE_DOWN      (GADGET_ID_COUNTER_FIRST + 3)
 239 #define GADGET_ID_LEVEL_XSIZE_TEXT      (GADGET_ID_COUNTER_FIRST + 4)
 240 #define GADGET_ID_LEVEL_XSIZE_UP        (GADGET_ID_COUNTER_FIRST + 5)
 241 #define GADGET_ID_LEVEL_YSIZE_DOWN      (GADGET_ID_COUNTER_FIRST + 6)
 242 #define GADGET_ID_LEVEL_YSIZE_TEXT      (GADGET_ID_COUNTER_FIRST + 7)
 243 #define GADGET_ID_LEVEL_YSIZE_UP        (GADGET_ID_COUNTER_FIRST + 8)
 244 #define GADGET_ID_LEVEL_RANDOM_DOWN     (GADGET_ID_COUNTER_FIRST + 9)
 245 #define GADGET_ID_LEVEL_RANDOM_TEXT     (GADGET_ID_COUNTER_FIRST + 10)
 246 #define GADGET_ID_LEVEL_RANDOM_UP       (GADGET_ID_COUNTER_FIRST + 11)
 247 #define GADGET_ID_LEVEL_GEMSLIMIT_DOWN  (GADGET_ID_COUNTER_FIRST + 12)
 248 #define GADGET_ID_LEVEL_GEMSLIMIT_TEXT  (GADGET_ID_COUNTER_FIRST + 13)
 249 #define GADGET_ID_LEVEL_GEMSLIMIT_UP    (GADGET_ID_COUNTER_FIRST + 14)
 250 #define GADGET_ID_LEVEL_TIMELIMIT_DOWN  (GADGET_ID_COUNTER_FIRST + 15)
 251 #define GADGET_ID_LEVEL_TIMELIMIT_TEXT  (GADGET_ID_COUNTER_FIRST + 16)
 252 #define GADGET_ID_LEVEL_TIMELIMIT_UP    (GADGET_ID_COUNTER_FIRST + 17)
 253 #define GADGET_ID_LEVEL_TIMESCORE_DOWN  (GADGET_ID_COUNTER_FIRST + 18)
 254 #define GADGET_ID_LEVEL_TIMESCORE_TEXT  (GADGET_ID_COUNTER_FIRST + 19)
 255 #define GADGET_ID_LEVEL_TIMESCORE_UP    (GADGET_ID_COUNTER_FIRST + 20)
 256 #define GADGET_ID_LEVEL_RANDOM_SEED_DOWN (GADGET_ID_COUNTER_FIRST + 21)
 257 #define GADGET_ID_LEVEL_RANDOM_SEED_TEXT (GADGET_ID_COUNTER_FIRST + 22)
 258 #define GADGET_ID_LEVEL_RANDOM_SEED_UP  (GADGET_ID_COUNTER_FIRST + 23)
 259 #define GADGET_ID_ELEMENT_VALUE1_DOWN   (GADGET_ID_COUNTER_FIRST + 24)
 260 #define GADGET_ID_ELEMENT_VALUE1_TEXT   (GADGET_ID_COUNTER_FIRST + 25)
 261 #define GADGET_ID_ELEMENT_VALUE1_UP     (GADGET_ID_COUNTER_FIRST + 26)
 262 #define GADGET_ID_ELEMENT_VALUE2_DOWN   (GADGET_ID_COUNTER_FIRST + 27)
 263 #define GADGET_ID_ELEMENT_VALUE2_TEXT   (GADGET_ID_COUNTER_FIRST + 28)
 264 #define GADGET_ID_ELEMENT_VALUE2_UP     (GADGET_ID_COUNTER_FIRST + 29)
 265 #define GADGET_ID_ELEMENT_VALUE3_DOWN   (GADGET_ID_COUNTER_FIRST + 30)
 266 #define GADGET_ID_ELEMENT_VALUE3_TEXT   (GADGET_ID_COUNTER_FIRST + 31)
 267 #define GADGET_ID_ELEMENT_VALUE3_UP     (GADGET_ID_COUNTER_FIRST + 32)
 268 #define GADGET_ID_ELEMENT_VALUE4_DOWN   (GADGET_ID_COUNTER_FIRST + 33)
 269 #define GADGET_ID_ELEMENT_VALUE4_TEXT   (GADGET_ID_COUNTER_FIRST + 34)
 270 #define GADGET_ID_ELEMENT_VALUE4_UP     (GADGET_ID_COUNTER_FIRST + 35)
 271 #define GADGET_ID_YAMYAM_CONTENT_DOWN   (GADGET_ID_COUNTER_FIRST + 36)
 272 #define GADGET_ID_YAMYAM_CONTENT_TEXT   (GADGET_ID_COUNTER_FIRST + 37)
 273 #define GADGET_ID_YAMYAM_CONTENT_UP     (GADGET_ID_COUNTER_FIRST + 38)
 274 #define GADGET_ID_BALL_CONTENT_DOWN     (GADGET_ID_COUNTER_FIRST + 39)
 275 #define GADGET_ID_BALL_CONTENT_TEXT     (GADGET_ID_COUNTER_FIRST + 40)
 276 #define GADGET_ID_BALL_CONTENT_UP       (GADGET_ID_COUNTER_FIRST + 41)
 277 #define GADGET_ID_ANDROID_CONTENT_DOWN  (GADGET_ID_COUNTER_FIRST + 42)
 278 #define GADGET_ID_ANDROID_CONTENT_TEXT  (GADGET_ID_COUNTER_FIRST + 43)
 279 #define GADGET_ID_ANDROID_CONTENT_UP    (GADGET_ID_COUNTER_FIRST + 44)
 280 #define GADGET_ID_ENVELOPE_XSIZE_DOWN   (GADGET_ID_COUNTER_FIRST + 45)
 281 #define GADGET_ID_ENVELOPE_XSIZE_TEXT   (GADGET_ID_COUNTER_FIRST + 46)
 282 #define GADGET_ID_ENVELOPE_XSIZE_UP     (GADGET_ID_COUNTER_FIRST + 47)
 283 #define GADGET_ID_ENVELOPE_YSIZE_DOWN   (GADGET_ID_COUNTER_FIRST + 48)
 284 #define GADGET_ID_ENVELOPE_YSIZE_TEXT   (GADGET_ID_COUNTER_FIRST + 49)
 285 #define GADGET_ID_ENVELOPE_YSIZE_UP     (GADGET_ID_COUNTER_FIRST + 50)
 286 #define GADGET_ID_INVENTORY_SIZE_DOWN   (GADGET_ID_COUNTER_FIRST + 51)
 287 #define GADGET_ID_INVENTORY_SIZE_TEXT   (GADGET_ID_COUNTER_FIRST + 52)
 288 #define GADGET_ID_INVENTORY_SIZE_UP     (GADGET_ID_COUNTER_FIRST + 53)
 289 #define GADGET_ID_CUSTOM_SCORE_DOWN     (GADGET_ID_COUNTER_FIRST + 54)
 290 #define GADGET_ID_CUSTOM_SCORE_TEXT     (GADGET_ID_COUNTER_FIRST + 55)
 291 #define GADGET_ID_CUSTOM_SCORE_UP       (GADGET_ID_COUNTER_FIRST + 56)
 292 #define GADGET_ID_CUSTOM_GEMCOUNT_DOWN  (GADGET_ID_COUNTER_FIRST + 57)
 293 #define GADGET_ID_CUSTOM_GEMCOUNT_TEXT  (GADGET_ID_COUNTER_FIRST + 58)
 294 #define GADGET_ID_CUSTOM_GEMCOUNT_UP    (GADGET_ID_COUNTER_FIRST + 59)
 295 #define GADGET_ID_CUSTOM_VALUE_FIX_DOWN (GADGET_ID_COUNTER_FIRST + 60)
 296 #define GADGET_ID_CUSTOM_VALUE_FIX_TEXT (GADGET_ID_COUNTER_FIRST + 61)
 297 #define GADGET_ID_CUSTOM_VALUE_FIX_UP   (GADGET_ID_COUNTER_FIRST + 62)
 298 #define GADGET_ID_CUSTOM_VALUE_RND_DOWN (GADGET_ID_COUNTER_FIRST + 63)
 299 #define GADGET_ID_CUSTOM_VALUE_RND_TEXT (GADGET_ID_COUNTER_FIRST + 64)
 300 #define GADGET_ID_CUSTOM_VALUE_RND_UP   (GADGET_ID_COUNTER_FIRST + 65)
 301 #define GADGET_ID_PUSH_DELAY_FIX_DOWN   (GADGET_ID_COUNTER_FIRST + 66)
 302 #define GADGET_ID_PUSH_DELAY_FIX_TEXT   (GADGET_ID_COUNTER_FIRST + 67)
 303 #define GADGET_ID_PUSH_DELAY_FIX_UP     (GADGET_ID_COUNTER_FIRST + 68)
 304 #define GADGET_ID_PUSH_DELAY_RND_DOWN   (GADGET_ID_COUNTER_FIRST + 69)
 305 #define GADGET_ID_PUSH_DELAY_RND_TEXT   (GADGET_ID_COUNTER_FIRST + 70)
 306 #define GADGET_ID_PUSH_DELAY_RND_UP     (GADGET_ID_COUNTER_FIRST + 71)
 307 #define GADGET_ID_DROP_DELAY_FIX_DOWN   (GADGET_ID_COUNTER_FIRST + 72)
 308 #define GADGET_ID_DROP_DELAY_FIX_TEXT   (GADGET_ID_COUNTER_FIRST + 73)
 309 #define GADGET_ID_DROP_DELAY_FIX_UP     (GADGET_ID_COUNTER_FIRST + 74)
 310 #define GADGET_ID_DROP_DELAY_RND_DOWN   (GADGET_ID_COUNTER_FIRST + 75)
 311 #define GADGET_ID_DROP_DELAY_RND_TEXT   (GADGET_ID_COUNTER_FIRST + 76)
 312 #define GADGET_ID_DROP_DELAY_RND_UP     (GADGET_ID_COUNTER_FIRST + 77)
 313 #define GADGET_ID_MOVE_DELAY_FIX_DOWN   (GADGET_ID_COUNTER_FIRST + 78)
 314 #define GADGET_ID_MOVE_DELAY_FIX_TEXT   (GADGET_ID_COUNTER_FIRST + 79)
 315 #define GADGET_ID_MOVE_DELAY_FIX_UP     (GADGET_ID_COUNTER_FIRST + 80)
 316 #define GADGET_ID_MOVE_DELAY_RND_DOWN   (GADGET_ID_COUNTER_FIRST + 81)
 317 #define GADGET_ID_MOVE_DELAY_RND_TEXT   (GADGET_ID_COUNTER_FIRST + 82)
 318 #define GADGET_ID_MOVE_DELAY_RND_UP     (GADGET_ID_COUNTER_FIRST + 83)
 319 #define GADGET_ID_EXPLOSION_DELAY_DOWN  (GADGET_ID_COUNTER_FIRST + 84)
 320 #define GADGET_ID_EXPLOSION_DELAY_TEXT  (GADGET_ID_COUNTER_FIRST + 85)
 321 #define GADGET_ID_EXPLOSION_DELAY_UP    (GADGET_ID_COUNTER_FIRST + 86)
 322 #define GADGET_ID_IGNITION_DELAY_DOWN   (GADGET_ID_COUNTER_FIRST + 87)
 323 #define GADGET_ID_IGNITION_DELAY_TEXT   (GADGET_ID_COUNTER_FIRST + 88)
 324 #define GADGET_ID_IGNITION_DELAY_UP     (GADGET_ID_COUNTER_FIRST + 89)
 325 #define GADGET_ID_CHANGE_DELAY_FIX_DOWN (GADGET_ID_COUNTER_FIRST + 90)
 326 #define GADGET_ID_CHANGE_DELAY_FIX_TEXT (GADGET_ID_COUNTER_FIRST + 91)
 327 #define GADGET_ID_CHANGE_DELAY_FIX_UP   (GADGET_ID_COUNTER_FIRST + 92)
 328 #define GADGET_ID_CHANGE_DELAY_RND_DOWN (GADGET_ID_COUNTER_FIRST + 93)
 329 #define GADGET_ID_CHANGE_DELAY_RND_TEXT (GADGET_ID_COUNTER_FIRST + 94)
 330 #define GADGET_ID_CHANGE_DELAY_RND_UP   (GADGET_ID_COUNTER_FIRST + 95)
 331 #define GADGET_ID_CHANGE_CONT_RND_DOWN  (GADGET_ID_COUNTER_FIRST + 96)
 332 #define GADGET_ID_CHANGE_CONT_RND_TEXT  (GADGET_ID_COUNTER_FIRST + 97)
 333 #define GADGET_ID_CHANGE_CONT_RND_UP    (GADGET_ID_COUNTER_FIRST + 98)
 334 #define GADGET_ID_GROUP_CONTENT_DOWN    (GADGET_ID_COUNTER_FIRST + 99)
 335 #define GADGET_ID_GROUP_CONTENT_TEXT    (GADGET_ID_COUNTER_FIRST + 100)
 336 #define GADGET_ID_GROUP_CONTENT_UP      (GADGET_ID_COUNTER_FIRST + 101)
 337
 338 /* drawing area identifiers */
 339 #define GADGET_ID_DRAWING_AREA_FIRST    (GADGET_ID_COUNTER_FIRST + 102)
 340
 341 #define GADGET_ID_DRAWING_LEVEL         (GADGET_ID_DRAWING_AREA_FIRST + 0)
 342 #define GADGET_ID_YAMYAM_CONTENT_0      (GADGET_ID_DRAWING_AREA_FIRST + 1)
 343 #define GADGET_ID_YAMYAM_CONTENT_1      (GADGET_ID_DRAWING_AREA_FIRST + 2)
 344 #define GADGET_ID_YAMYAM_CONTENT_2      (GADGET_ID_DRAWING_AREA_FIRST + 3)
 345 #define GADGET_ID_YAMYAM_CONTENT_3      (GADGET_ID_DRAWING_AREA_FIRST + 4)
 346 #define GADGET_ID_YAMYAM_CONTENT_4      (GADGET_ID_DRAWING_AREA_FIRST + 5)
 347 #define GADGET_ID_YAMYAM_CONTENT_5      (GADGET_ID_DRAWING_AREA_FIRST + 6)
 348 #define GADGET_ID_YAMYAM_CONTENT_6      (GADGET_ID_DRAWING_AREA_FIRST + 7)
 349 #define GADGET_ID_YAMYAM_CONTENT_7      (GADGET_ID_DRAWING_AREA_FIRST + 8)
 350 #define GADGET_ID_MAGIC_BALL_CONTENT_0  (GADGET_ID_DRAWING_AREA_FIRST + 9)
 351 #define GADGET_ID_MAGIC_BALL_CONTENT_1  (GADGET_ID_DRAWING_AREA_FIRST + 10)
 352 #define GADGET_ID_MAGIC_BALL_CONTENT_2  (GADGET_ID_DRAWING_AREA_FIRST + 11)
 353 #define GADGET_ID_MAGIC_BALL_CONTENT_3  (GADGET_ID_DRAWING_AREA_FIRST + 12)
 354 #define GADGET_ID_MAGIC_BALL_CONTENT_4  (GADGET_ID_DRAWING_AREA_FIRST + 13)
 355 #define GADGET_ID_MAGIC_BALL_CONTENT_5  (GADGET_ID_DRAWING_AREA_FIRST + 14)
 356 #define GADGET_ID_MAGIC_BALL_CONTENT_6  (GADGET_ID_DRAWING_AREA_FIRST + 15)
 357 #define GADGET_ID_MAGIC_BALL_CONTENT_7  (GADGET_ID_DRAWING_AREA_FIRST + 16)
 358 #define GADGET_ID_ANDROID_CONTENT       (GADGET_ID_DRAWING_AREA_FIRST + 17)
 359 #define GADGET_ID_AMOEBA_CONTENT        (GADGET_ID_DRAWING_AREA_FIRST + 18)
 360 #define GADGET_ID_START_ELEMENT         (GADGET_ID_DRAWING_AREA_FIRST + 19)
 361 #define GADGET_ID_ARTWORK_ELEMENT       (GADGET_ID_DRAWING_AREA_FIRST + 20)
 362 #define GADGET_ID_EXPLOSION_ELEMENT     (GADGET_ID_DRAWING_AREA_FIRST + 21)
 363 #define GADGET_ID_INVENTORY_CONTENT     (GADGET_ID_DRAWING_AREA_FIRST + 22)
 364 #define GADGET_ID_CUSTOM_GRAPHIC        (GADGET_ID_DRAWING_AREA_FIRST + 23)
 365 #define GADGET_ID_CUSTOM_CONTENT        (GADGET_ID_DRAWING_AREA_FIRST + 24)
 366 #define GADGET_ID_CUSTOM_MOVE_ENTER     (GADGET_ID_DRAWING_AREA_FIRST + 25)
 367 #define GADGET_ID_CUSTOM_MOVE_LEAVE     (GADGET_ID_DRAWING_AREA_FIRST + 26)
 368 #define GADGET_ID_CUSTOM_CHANGE_TARGET  (GADGET_ID_DRAWING_AREA_FIRST + 27)
 369 #define GADGET_ID_CUSTOM_CHANGE_CONTENT (GADGET_ID_DRAWING_AREA_FIRST + 28)
 370 #define GADGET_ID_CUSTOM_CHANGE_TRIGGER (GADGET_ID_DRAWING_AREA_FIRST + 29)
 371 #define GADGET_ID_CUSTOM_CHANGE_ACTION  (GADGET_ID_DRAWING_AREA_FIRST + 30)
 372 #define GADGET_ID_GROUP_CONTENT         (GADGET_ID_DRAWING_AREA_FIRST + 31)
 373 #define GADGET_ID_RANDOM_BACKGROUND     (GADGET_ID_DRAWING_AREA_FIRST + 32)
 374
 375 /* text input identifiers */
 376 #define GADGET_ID_TEXT_INPUT_FIRST      (GADGET_ID_DRAWING_AREA_FIRST + 33)
 377
 378 #define GADGET_ID_LEVEL_NAME            (GADGET_ID_TEXT_INPUT_FIRST + 0)
 379 #define GADGET_ID_LEVEL_AUTHOR          (GADGET_ID_TEXT_INPUT_FIRST + 1)
 380 #define GADGET_ID_ELEMENT_NAME          (GADGET_ID_TEXT_INPUT_FIRST + 2)
 381
 382 /* text area identifiers */
 383 #define GADGET_ID_TEXT_AREA_FIRST       (GADGET_ID_TEXT_INPUT_FIRST + 3)
 384
 385 #define GADGET_ID_ENVELOPE_INFO         (GADGET_ID_TEXT_AREA_FIRST + 0)
 386
 387 /* selectbox identifiers */
 388 #define GADGET_ID_SELECTBOX_FIRST       (GADGET_ID_TEXT_AREA_FIRST + 1)
 389
 390 #define GADGET_ID_TIME_OR_STEPS         (GADGET_ID_SELECTBOX_FIRST + 0)
 391 #define GADGET_ID_GAME_ENGINE_TYPE      (GADGET_ID_SELECTBOX_FIRST + 1)
 392 #define GADGET_ID_WIND_DIRECTION        (GADGET_ID_SELECTBOX_FIRST + 2)
 393 #define GADGET_ID_PLAYER_SPEED          (GADGET_ID_SELECTBOX_FIRST + 3)
 394 #define GADGET_ID_CUSTOM_WALK_TO_ACTION (GADGET_ID_SELECTBOX_FIRST + 4)
 395 #define GADGET_ID_CUSTOM_EXPLOSION_TYPE (GADGET_ID_SELECTBOX_FIRST + 5)
 396 #define GADGET_ID_CUSTOM_DEADLINESS     (GADGET_ID_SELECTBOX_FIRST + 6)
 397 #define GADGET_ID_CUSTOM_MOVE_PATTERN   (GADGET_ID_SELECTBOX_FIRST + 7)
 398 #define GADGET_ID_CUSTOM_MOVE_DIRECTION (GADGET_ID_SELECTBOX_FIRST + 8)
 399 #define GADGET_ID_CUSTOM_MOVE_STEPSIZE  (GADGET_ID_SELECTBOX_FIRST + 9)
 400 #define GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE (GADGET_ID_SELECTBOX_FIRST + 10)
 401 #define GADGET_ID_CUSTOM_SMASH_TARGETS  (GADGET_ID_SELECTBOX_FIRST + 11)
 402 #define GADGET_ID_CUSTOM_SLIPPERY_TYPE  (GADGET_ID_SELECTBOX_FIRST + 12)
 403 #define GADGET_ID_CUSTOM_ACCESS_TYPE    (GADGET_ID_SELECTBOX_FIRST + 13)
 404 #define GADGET_ID_CUSTOM_ACCESS_LAYER   (GADGET_ID_SELECTBOX_FIRST + 14)
 405 #define GADGET_ID_CUSTOM_ACCESS_PROTECTED (GADGET_ID_SELECTBOX_FIRST + 15)
 406 #define GADGET_ID_CUSTOM_ACCESS_DIRECTION (GADGET_ID_SELECTBOX_FIRST + 16)
 407 #define GADGET_ID_CHANGE_TIME_UNITS     (GADGET_ID_SELECTBOX_FIRST + 17)
 408 #define GADGET_ID_CHANGE_DIRECT_ACTION  (GADGET_ID_SELECTBOX_FIRST + 18)
 409 #define GADGET_ID_CHANGE_OTHER_ACTION   (GADGET_ID_SELECTBOX_FIRST + 19)
 410 #define GADGET_ID_CHANGE_SIDE           (GADGET_ID_SELECTBOX_FIRST + 20)
 411 #define GADGET_ID_CHANGE_PLAYER         (GADGET_ID_SELECTBOX_FIRST + 21)
 412 #define GADGET_ID_CHANGE_PAGE           (GADGET_ID_SELECTBOX_FIRST + 22)
 413 #define GADGET_ID_CHANGE_REPLACE_WHEN   (GADGET_ID_SELECTBOX_FIRST + 23)
 414 #define GADGET_ID_ACTION_TYPE           (GADGET_ID_SELECTBOX_FIRST + 24)
 415 #define GADGET_ID_ACTION_MODE           (GADGET_ID_SELECTBOX_FIRST + 25)
 416 #define GADGET_ID_ACTION_ARG            (GADGET_ID_SELECTBOX_FIRST + 26)
 417 #define GADGET_ID_SELECT_CHANGE_PAGE    (GADGET_ID_SELECTBOX_FIRST + 27)
 418 #define GADGET_ID_GROUP_CHOICE_MODE     (GADGET_ID_SELECTBOX_FIRST + 28)
 419
 420 /* textbutton identifiers */
 421 #define GADGET_ID_TEXTBUTTON_FIRST      (GADGET_ID_SELECTBOX_FIRST + 29)
 422
 423 #define GADGET_ID_LEVELINFO_LEVEL       (GADGET_ID_TEXTBUTTON_FIRST + 0)
 424 #define GADGET_ID_LEVELINFO_EDITOR      (GADGET_ID_TEXTBUTTON_FIRST + 1)
 425 #define GADGET_ID_PROPERTIES_INFO       (GADGET_ID_TEXTBUTTON_FIRST + 2)
 426 #define GADGET_ID_PROPERTIES_CONFIG     (GADGET_ID_TEXTBUTTON_FIRST + 3)
 427 #define GADGET_ID_PROPERTIES_CONFIG_1   (GADGET_ID_TEXTBUTTON_FIRST + 4)
 428 #define GADGET_ID_PROPERTIES_CONFIG_2   (GADGET_ID_TEXTBUTTON_FIRST + 5)
 429 #define GADGET_ID_PROPERTIES_CHANGE     (GADGET_ID_TEXTBUTTON_FIRST + 6)
 430 #define GADGET_ID_SAVE_AS_TEMPLATE      (GADGET_ID_TEXTBUTTON_FIRST + 7)
 431 #define GADGET_ID_ADD_CHANGE_PAGE       (GADGET_ID_TEXTBUTTON_FIRST + 8)
 432 #define GADGET_ID_DEL_CHANGE_PAGE       (GADGET_ID_TEXTBUTTON_FIRST + 9)
 433
 434 /* graphicbutton identifiers */
 435 #define GADGET_ID_GRAPHICBUTTON_FIRST   (GADGET_ID_TEXTBUTTON_FIRST + 10)
 436
 437 #define GADGET_ID_PREV_CHANGE_PAGE      (GADGET_ID_GRAPHICBUTTON_FIRST + 0)
 438 #define GADGET_ID_NEXT_CHANGE_PAGE      (GADGET_ID_GRAPHICBUTTON_FIRST + 1)
 439 #define GADGET_ID_COPY_CHANGE_PAGE      (GADGET_ID_GRAPHICBUTTON_FIRST + 2)
 440 #define GADGET_ID_PASTE_CHANGE_PAGE     (GADGET_ID_GRAPHICBUTTON_FIRST + 3)
 441
 442 /* gadgets for scrolling of drawing area */
 443 #define GADGET_ID_SCROLLING_FIRST       (GADGET_ID_GRAPHICBUTTON_FIRST + 4)
 444
 445 #define GADGET_ID_SCROLL_UP             (GADGET_ID_SCROLLING_FIRST + 0)
 446 #define GADGET_ID_SCROLL_DOWN           (GADGET_ID_SCROLLING_FIRST + 1)
 447 #define GADGET_ID_SCROLL_LEFT           (GADGET_ID_SCROLLING_FIRST + 2)
 448 #define GADGET_ID_SCROLL_RIGHT          (GADGET_ID_SCROLLING_FIRST + 3)
 449 #define GADGET_ID_SCROLL_HORIZONTAL     (GADGET_ID_SCROLLING_FIRST + 4)
 450 #define GADGET_ID_SCROLL_VERTICAL       (GADGET_ID_SCROLLING_FIRST + 5)
 451
 452 /* gadgets for scrolling element list */
 453 #define GADGET_ID_SCROLLING_LIST_FIRST  (GADGET_ID_SCROLLING_FIRST + 6)
 454
 455 #define GADGET_ID_SCROLL_LIST_UP        (GADGET_ID_SCROLLING_LIST_FIRST + 0)
 456 #define GADGET_ID_SCROLL_LIST_DOWN      (GADGET_ID_SCROLLING_LIST_FIRST + 1)
 457 #define GADGET_ID_SCROLL_LIST_VERTICAL  (GADGET_ID_SCROLLING_LIST_FIRST + 2)
 458
 459 /* checkbuttons/radiobuttons for level/element properties */
 460 #define GADGET_ID_CHECKBUTTON_FIRST     (GADGET_ID_SCROLLING_LIST_FIRST + 3)
 461
 462 #define GADGET_ID_RANDOM_PERCENTAGE     (GADGET_ID_CHECKBUTTON_FIRST + 0)
 463 #define GADGET_ID_RANDOM_QUANTITY       (GADGET_ID_CHECKBUTTON_FIRST + 1)
 464 #define GADGET_ID_RANDOM_RESTRICTED     (GADGET_ID_CHECKBUTTON_FIRST + 2)
 465 #define GADGET_ID_STICK_ELEMENT         (GADGET_ID_CHECKBUTTON_FIRST + 3)
 466 #define GADGET_ID_EM_SLIPPERY_GEMS      (GADGET_ID_CHECKBUTTON_FIRST + 4)
 467 #define GADGET_ID_EM_EXPLODES_BY_FIRE   (GADGET_ID_CHECKBUTTON_FIRST + 5)
 468 #define GADGET_ID_USE_SPRING_BUG        (GADGET_ID_CHECKBUTTON_FIRST + 6)
 469 #define GADGET_ID_USE_TIME_ORB_BUG      (GADGET_ID_CHECKBUTTON_FIRST + 7)
 470 #define GADGET_ID_RANDOM_BALL_CONTENT   (GADGET_ID_CHECKBUTTON_FIRST + 8)
 471 #define GADGET_ID_INITIAL_BALL_STATE    (GADGET_ID_CHECKBUTTON_FIRST + 9)
 472 #define GADGET_ID_GROW_INTO_DIGGABLE    (GADGET_ID_CHECKBUTTON_FIRST + 10)
 473 #define GADGET_ID_AUTO_EXIT_SOKOBAN     (GADGET_ID_CHECKBUTTON_FIRST + 11)
 474 #define GADGET_ID_CONTINUOUS_SNAPPING   (GADGET_ID_CHECKBUTTON_FIRST + 12)
 475 #define GADGET_ID_BLOCK_SNAP_FIELD      (GADGET_ID_CHECKBUTTON_FIRST + 13)
 476 #define GADGET_ID_BLOCK_LAST_FIELD      (GADGET_ID_CHECKBUTTON_FIRST + 14)
 477 #define GADGET_ID_SP_BLOCK_LAST_FIELD   (GADGET_ID_CHECKBUTTON_FIRST + 15)
 478 #define GADGET_ID_INSTANT_RELOCATION    (GADGET_ID_CHECKBUTTON_FIRST + 16)
 479 #define GADGET_ID_SHIFTED_RELOCATION    (GADGET_ID_CHECKBUTTON_FIRST + 17)
 480 #define GADGET_ID_USE_START_ELEMENT     (GADGET_ID_CHECKBUTTON_FIRST + 18)
 481 #define GADGET_ID_USE_ARTWORK_ELEMENT   (GADGET_ID_CHECKBUTTON_FIRST + 19)
 482 #define GADGET_ID_USE_EXPLOSION_ELEMENT (GADGET_ID_CHECKBUTTON_FIRST + 20)
 483 #define GADGET_ID_INITIAL_GRAVITY       (GADGET_ID_CHECKBUTTON_FIRST + 21)
 484 #define GADGET_ID_USE_INITIAL_INVENTORY (GADGET_ID_CHECKBUTTON_FIRST + 22)
 485 #define GADGET_ID_CAN_PASS_TO_WALKABLE  (GADGET_ID_CHECKBUTTON_FIRST + 23)
 486 #define GADGET_ID_CAN_FALL_INTO_ACID    (GADGET_ID_CHECKBUTTON_FIRST + 24)
 487 #define GADGET_ID_CAN_MOVE_INTO_ACID    (GADGET_ID_CHECKBUTTON_FIRST + 25)
 488 #define GADGET_ID_DONT_COLLIDE_WITH     (GADGET_ID_CHECKBUTTON_FIRST + 26)
 489 #define GADGET_ID_ENVELOPE_AUTOWRAP     (GADGET_ID_CHECKBUTTON_FIRST + 27)
 490 #define GADGET_ID_ENVELOPE_CENTERED     (GADGET_ID_CHECKBUTTON_FIRST + 28)
 491 #define GADGET_ID_CUSTOM_INDESTRUCTIBLE (GADGET_ID_CHECKBUTTON_FIRST + 29)
 492 #define GADGET_ID_CUSTOM_CAN_EXPLODE    (GADGET_ID_CHECKBUTTON_FIRST + 30)
 493 #define GADGET_ID_CUSTOM_EXPLODE_FIRE   (GADGET_ID_CHECKBUTTON_FIRST + 31)
 494 #define GADGET_ID_CUSTOM_EXPLODE_SMASH  (GADGET_ID_CHECKBUTTON_FIRST + 32)
 495 #define GADGET_ID_CUSTOM_EXPLODE_IMPACT (GADGET_ID_CHECKBUTTON_FIRST + 33)
 496 #define GADGET_ID_CUSTOM_WALK_TO_OBJECT (GADGET_ID_CHECKBUTTON_FIRST + 34)
 497 #define GADGET_ID_CUSTOM_DEADLY         (GADGET_ID_CHECKBUTTON_FIRST + 35)
 498 #define GADGET_ID_CUSTOM_CAN_MOVE       (GADGET_ID_CHECKBUTTON_FIRST + 36)
 499 #define GADGET_ID_CUSTOM_CAN_FALL       (GADGET_ID_CHECKBUTTON_FIRST + 37)
 500 #define GADGET_ID_CUSTOM_CAN_SMASH      (GADGET_ID_CHECKBUTTON_FIRST + 38)
 501 #define GADGET_ID_CUSTOM_SLIPPERY       (GADGET_ID_CHECKBUTTON_FIRST + 39)
 502 #define GADGET_ID_CUSTOM_ACCESSIBLE     (GADGET_ID_CHECKBUTTON_FIRST + 40)
 503 #define GADGET_ID_CUSTOM_GRAV_REACHABLE (GADGET_ID_CHECKBUTTON_FIRST + 41)
 504 #define GADGET_ID_CUSTOM_USE_LAST_VALUE (GADGET_ID_CHECKBUTTON_FIRST + 42)
 505 #define GADGET_ID_CUSTOM_USE_GRAPHIC    (GADGET_ID_CHECKBUTTON_FIRST + 43)
 506 #define GADGET_ID_CUSTOM_USE_TEMPLATE   (GADGET_ID_CHECKBUTTON_FIRST + 44)
 507 #define GADGET_ID_CUSTOM_CAN_CHANGE     (GADGET_ID_CHECKBUTTON_FIRST + 45)
 508 #define GADGET_ID_CHANGE_USE_CONTENT    (GADGET_ID_CHECKBUTTON_FIRST + 46)
 509 #define GADGET_ID_CHANGE_USE_EXPLOSION  (GADGET_ID_CHECKBUTTON_FIRST + 47)
 510 #define GADGET_ID_CHANGE_ONLY_COMPLETE  (GADGET_ID_CHECKBUTTON_FIRST + 48)
 511 #define GADGET_ID_CHANGE_USE_RANDOM     (GADGET_ID_CHECKBUTTON_FIRST + 49)
 512 #define GADGET_ID_CHANGE_HAS_ACTION     (GADGET_ID_CHECKBUTTON_FIRST + 50)
 513 #define GADGET_ID_CHANGE_DELAY          (GADGET_ID_CHECKBUTTON_FIRST + 51)
 514 #define GADGET_ID_CHANGE_BY_DIRECT_ACT  (GADGET_ID_CHECKBUTTON_FIRST + 52)
 515 #define GADGET_ID_CHANGE_BY_OTHER_ACT   (GADGET_ID_CHECKBUTTON_FIRST + 53)
 516
 517 /* gadgets for buttons in element list */
 518 #define GADGET_ID_ELEMENTLIST_FIRST     (GADGET_ID_CHECKBUTTON_FIRST + 54)
 519 #define GADGET_ID_ELEMENTLIST_LAST      (GADGET_ID_ELEMENTLIST_FIRST +  \
 520                                         ED_NUM_ELEMENTLIST_BUTTONS - 1)
 521
 522 #define NUM_EDITOR_GADGETS              (GADGET_ID_ELEMENTLIST_LAST + 1)
 523
 524 /* radio button numbers */
 525 #define RADIO_NR_NONE                   0
 526 #define RADIO_NR_DRAWING_TOOLBOX        1
 527 #define RADIO_NR_RANDOM_ELEMENTS        2
 528
 529 /* values for counter gadgets */
 530 #define ED_COUNTER_ID_SELECT_LEVEL      0
 531 #define ED_COUNTER_ID_LEVEL_XSIZE       1
 532 #define ED_COUNTER_ID_LEVEL_YSIZE       2
 533 #define ED_COUNTER_ID_LEVEL_GEMSLIMIT   3
 534 #define ED_COUNTER_ID_LEVEL_TIMELIMIT   4
 535 #define ED_COUNTER_ID_LEVEL_TIMESCORE   5
 536 #define ED_COUNTER_ID_LEVEL_RANDOM_SEED 6
 537 #define ED_COUNTER_ID_LEVEL_RANDOM      7
 538 #define ED_COUNTER_ID_ELEMENT_VALUE1    8
 539 #define ED_COUNTER_ID_ELEMENT_VALUE2    9
 540 #define ED_COUNTER_ID_ELEMENT_VALUE3    10
 541 #define ED_COUNTER_ID_ELEMENT_VALUE4    11
 542 #define ED_COUNTER_ID_YAMYAM_CONTENT    12
 543 #define ED_COUNTER_ID_BALL_CONTENT      13
 544 #define ED_COUNTER_ID_ANDROID_CONTENT   14
 545 #define ED_COUNTER_ID_ENVELOPE_XSIZE    15
 546 #define ED_COUNTER_ID_ENVELOPE_YSIZE    16
 547 #define ED_COUNTER_ID_INVENTORY_SIZE    17
 548 #define ED_COUNTER_ID_CUSTOM_SCORE      18
 549 #define ED_COUNTER_ID_CUSTOM_GEMCOUNT   19
 550 #define ED_COUNTER_ID_CUSTOM_VALUE_FIX  20
 551 #define ED_COUNTER_ID_CUSTOM_VALUE_RND  21
 552 #define ED_COUNTER_ID_PUSH_DELAY_FIX    22
 553 #define ED_COUNTER_ID_PUSH_DELAY_RND    23
 554 #define ED_COUNTER_ID_DROP_DELAY_FIX    24
 555 #define ED_COUNTER_ID_DROP_DELAY_RND    25
 556 #define ED_COUNTER_ID_MOVE_DELAY_FIX    26
 557 #define ED_COUNTER_ID_MOVE_DELAY_RND    27
 558 #define ED_COUNTER_ID_EXPLOSION_DELAY   28
 559 #define ED_COUNTER_ID_IGNITION_DELAY    29
 560 #define ED_COUNTER_ID_GROUP_CONTENT     30
 561 #define ED_COUNTER_ID_CHANGE_DELAY_FIX  31
 562 #define ED_COUNTER_ID_CHANGE_DELAY_RND  32
 563 #define ED_COUNTER_ID_CHANGE_CONT_RND   33
 564
 565 #define ED_NUM_COUNTERBUTTONS           34
 566
 567 #define ED_COUNTER_ID_LEVEL_FIRST       ED_COUNTER_ID_LEVEL_XSIZE
 568 #define ED_COUNTER_ID_LEVEL_LAST        ED_COUNTER_ID_LEVEL_RANDOM_SEED
 569 #define ED_COUNTER_ID_EDITOR_FIRST      ED_COUNTER_ID_LEVEL_RANDOM
 570 #define ED_COUNTER_ID_EDITOR_LAST       ED_COUNTER_ID_LEVEL_RANDOM
 571
 572 #define ED_COUNTER_ID_CUSTOM1_FIRST     ED_COUNTER_ID_CUSTOM_SCORE
 573 #define ED_COUNTER_ID_CUSTOM1_LAST      ED_COUNTER_ID_DROP_DELAY_RND
 574 #define ED_COUNTER_ID_CUSTOM2_FIRST     ED_COUNTER_ID_MOVE_DELAY_FIX
 575 #define ED_COUNTER_ID_CUSTOM2_LAST      ED_COUNTER_ID_IGNITION_DELAY
 576 #define ED_COUNTER_ID_CUSTOM_FIRST      ED_COUNTER_ID_CUSTOM1_FIRST
 577 #define ED_COUNTER_ID_CUSTOM_LAST       ED_COUNTER_ID_CUSTOM2_LAST
 578
 579 #define ED_COUNTER_ID_CHANGE_FIRST      ED_COUNTER_ID_CHANGE_DELAY_FIX
 580 #define ED_COUNTER_ID_CHANGE_LAST       ED_COUNTER_ID_CHANGE_CONT_RND
 581
 582 /* values for scrollbutton gadgets */
 583 #define ED_SCROLLBUTTON_ID_AREA_UP      0
 584 #define ED_SCROLLBUTTON_ID_AREA_DOWN    1
 585 #define ED_SCROLLBUTTON_ID_AREA_LEFT    2
 586 #define ED_SCROLLBUTTON_ID_AREA_RIGHT   3
 587 #define ED_SCROLLBUTTON_ID_LIST_UP      4
 588 #define ED_SCROLLBUTTON_ID_LIST_DOWN    5
 589
 590 #define ED_NUM_SCROLLBUTTONS            6
 591
 592 #define ED_SCROLLBUTTON_ID_AREA_FIRST   ED_SCROLLBUTTON_ID_AREA_UP
 593 #define ED_SCROLLBUTTON_ID_AREA_LAST    ED_SCROLLBUTTON_ID_AREA_RIGHT
 594
 595 /* values for scrollbar gadgets */
 596 #define ED_SCROLLBAR_ID_AREA_HORIZONTAL 0
 597 #define ED_SCROLLBAR_ID_AREA_VERTICAL   1
 598 #define ED_SCROLLBAR_ID_LIST_VERTICAL   2
 599
 600 #define ED_NUM_SCROLLBARS               3
 601
 602 #define ED_SCROLLBAR_ID_AREA_FIRST      ED_SCROLLBAR_ID_AREA_HORIZONTAL
 603 #define ED_SCROLLBAR_ID_AREA_LAST       ED_SCROLLBAR_ID_AREA_VERTICAL
 604
 605 /* values for text input gadgets */
 606 #define ED_TEXTINPUT_ID_LEVEL_NAME      0
 607 #define ED_TEXTINPUT_ID_LEVEL_AUTHOR    1
 608 #define ED_TEXTINPUT_ID_ELEMENT_NAME    2
 609
 610 #define ED_NUM_TEXTINPUT                3
 611
 612 #define ED_TEXTINPUT_ID_LEVEL_FIRST     ED_TEXTINPUT_ID_LEVEL_NAME
 613 #define ED_TEXTINPUT_ID_LEVEL_LAST      ED_TEXTINPUT_ID_LEVEL_AUTHOR
 614
 615 /* values for text area gadgets */
 616 #define ED_TEXTAREA_ID_ENVELOPE_INFO    0
 617
 618 #define ED_NUM_TEXTAREAS                        1
 619
 620 #define ED_TEXTAREA_ID_LEVEL_FIRST      ED_TEXTAREA_ID_ENVELOPE
 621 #define ED_TEXTAREA_ID_LEVEL_LAST       ED_TEXTAREA_ID_ENVELOPE
 622
 623 /* values for selectbox gadgets */
 624 #define ED_SELECTBOX_ID_TIME_OR_STEPS           0
 625 #define ED_SELECTBOX_ID_GAME_ENGINE_TYPE        1
 626 #define ED_SELECTBOX_ID_WIND_DIRECTION          2
 627 #define ED_SELECTBOX_ID_PLAYER_SPEED            3
 628 #define ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE      4
 629 #define ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER     5
 630 #define ED_SELECTBOX_ID_CUSTOM_ACCESS_PROTECTED 6
 631 #define ED_SELECTBOX_ID_CUSTOM_ACCESS_DIRECTION 7
 632 #define ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION   8
 633 #define ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN     9
 634 #define ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION   10
 635 #define ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE    11
 636 #define ED_SELECTBOX_ID_CUSTOM_MOVE_LEAVE_TYPE  12
 637 #define ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS    13
 638 #define ED_SELECTBOX_ID_CUSTOM_SLIPPERY_TYPE    14
 639 #define ED_SELECTBOX_ID_CUSTOM_DEADLINESS       15
 640 #define ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE   16
 641 #define ED_SELECTBOX_ID_CHANGE_TIME_UNITS       17
 642 #define ED_SELECTBOX_ID_CHANGE_DIRECT_ACTION    18
 643 #define ED_SELECTBOX_ID_CHANGE_OTHER_ACTION     19
 644 #define ED_SELECTBOX_ID_CHANGE_SIDE             20
 645 #define ED_SELECTBOX_ID_CHANGE_PLAYER           21
 646 #define ED_SELECTBOX_ID_CHANGE_PAGE             22
 647 #define ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN     23
 648 #define ED_SELECTBOX_ID_ACTION_TYPE             24
 649 #define ED_SELECTBOX_ID_ACTION_MODE             25
 650 #define ED_SELECTBOX_ID_ACTION_ARG              26
 651 #define ED_SELECTBOX_ID_SELECT_CHANGE_PAGE      27
 652 #define ED_SELECTBOX_ID_GROUP_CHOICE_MODE       28
 653
 654 #define ED_NUM_SELECTBOX                        29
 655
 656 #define ED_SELECTBOX_ID_LEVEL_FIRST     ED_SELECTBOX_ID_TIME_OR_STEPS
 657 #define ED_SELECTBOX_ID_LEVEL_LAST      ED_SELECTBOX_ID_WIND_DIRECTION
 658
 659 #define ED_SELECTBOX_ID_CUSTOM1_FIRST   ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE
 660 #define ED_SELECTBOX_ID_CUSTOM1_LAST    ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
 661 #define ED_SELECTBOX_ID_CUSTOM2_FIRST   ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN
 662 #define ED_SELECTBOX_ID_CUSTOM2_LAST    ED_SELECTBOX_ID_CUSTOM_EXPLOSION_TYPE
 663 #define ED_SELECTBOX_ID_CUSTOM_FIRST    ED_SELECTBOX_ID_CUSTOM1_FIRST
 664 #define ED_SELECTBOX_ID_CUSTOM_LAST     ED_SELECTBOX_ID_CUSTOM2_LAST
 665
 666 #define ED_SELECTBOX_ID_CHANGE_FIRST    ED_SELECTBOX_ID_CHANGE_TIME_UNITS
 667 #define ED_SELECTBOX_ID_CHANGE_LAST     ED_SELECTBOX_ID_SELECT_CHANGE_PAGE
 668
 669 /* values for textbutton gadgets */
 670 #define ED_TEXTBUTTON_ID_LEVELINFO_LEVEL        0
 671 #define ED_TEXTBUTTON_ID_LEVELINFO_EDITOR       1
 672 #define ED_TEXTBUTTON_ID_PROPERTIES_INFO        2
 673 #define ED_TEXTBUTTON_ID_PROPERTIES_CONFIG      3
 674 #define ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1    4
 675 #define ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2    5
 676 #define ED_TEXTBUTTON_ID_PROPERTIES_CHANGE      6
 677 #define ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE       7
 678 #define ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE        8
 679 #define ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE        9
 680
 681 #define ED_NUM_TEXTBUTTONS                      10
 682
 683 #define ED_TEXTBUTTON_ID_LEVELINFO_FIRST ED_TEXTBUTTON_ID_LEVELINFO_LEVEL
 684 #define ED_TEXTBUTTON_ID_LEVELINFO_LAST  ED_TEXTBUTTON_ID_LEVELINFO_EDITOR
 685
 686 #define ED_TEXTBUTTON_ID_PROPERTIES_FIRST ED_TEXTBUTTON_ID_PROPERTIES_INFO
 687 #define ED_TEXTBUTTON_ID_PROPERTIES_LAST  ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
 688
 689 #define ED_TEXTBUTTON_ID_CHANGE_FIRST   ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE
 690 #define ED_TEXTBUTTON_ID_CHANGE_LAST    ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE
 691
 692 /* values for graphicbutton gadgets */
 693 #define ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE    0
 694 #define ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE    1
 695 #define ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE    2
 696 #define ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE   3
 697
 698 #define ED_NUM_GRAPHICBUTTONS                   4
 699
 700 #define ED_GRAPHICBUTTON_ID_CHANGE_FIRST  ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE
 701 #define ED_GRAPHICBUTTON_ID_CHANGE_LAST   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE
 702
 703 /* values for checkbutton gadgets */
 704 #define ED_CHECKBUTTON_ID_RANDOM_RESTRICTED     0
 705 #define ED_CHECKBUTTON_ID_STICK_ELEMENT         1
 706 #define ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS      2
 707 #define ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE   3
 708 #define ED_CHECKBUTTON_ID_USE_SPRING_BUG        4
 709 #define ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG      5
 710 #define ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT   6
 711 #define ED_CHECKBUTTON_ID_INITIAL_BALL_STATE    7
 712 #define ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE    8
 713 #define ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN     9
 714 #define ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING   10
 715 #define ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD      11
 716 #define ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD      12
 717 #define ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD   13
 718 #define ED_CHECKBUTTON_ID_INSTANT_RELOCATION    14
 719 #define ED_CHECKBUTTON_ID_SHIFTED_RELOCATION    15
 720 #define ED_CHECKBUTTON_ID_USE_START_ELEMENT     16
 721 #define ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT   17
 722 #define ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT 18
 723 #define ED_CHECKBUTTON_ID_INITIAL_GRAVITY       19
 724 #define ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY 20
 725 #define ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE  21
 726 #define ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID    22
 727 #define ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID    23
 728 #define ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH     24
 729 #define ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP     25
 730 #define ED_CHECKBUTTON_ID_ENVELOPE_CENTERED     26
 731 #define ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC    27
 732 #define ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE   28
 733 #define ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE     29
 734 #define ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE 30
 735 #define ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE 31
 736 #define ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT 32
 737 #define ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE 33
 738 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE       34
 739 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL       35
 740 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH      36
 741 #define ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY       37
 742 #define ED_CHECKBUTTON_ID_CUSTOM_DEADLY         38
 743 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE    39
 744 #define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE   40
 745 #define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH  41
 746 #define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT 42
 747 #define ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE     43
 748 #define ED_CHECKBUTTON_ID_CHANGE_DELAY          44
 749 #define ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT  45
 750 #define ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT   46
 751 #define ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION  47
 752 #define ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT    48
 753 #define ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE  49
 754 #define ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM     50
 755 #define ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION     51
 756
 757 #define ED_NUM_CHECKBUTTONS                     52
 758
 759 #define ED_CHECKBUTTON_ID_EDITOR_FIRST  ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
 760 #define ED_CHECKBUTTON_ID_EDITOR_LAST   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
 761
 762 #define ED_CHECKBUTTON_ID_CUSTOM1_FIRST ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
 763 #define ED_CHECKBUTTON_ID_CUSTOM1_LAST  ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE
 764 #define ED_CHECKBUTTON_ID_CUSTOM2_FIRST ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE
 765 #define ED_CHECKBUTTON_ID_CUSTOM2_LAST  ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT
 766 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST  ED_CHECKBUTTON_ID_CUSTOM1_FIRST
 767 #define ED_CHECKBUTTON_ID_CUSTOM_LAST   ED_CHECKBUTTON_ID_CUSTOM2_LAST
 768
 769 #define ED_CHECKBUTTON_ID_CHANGE_FIRST  ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE
 770 #define ED_CHECKBUTTON_ID_CHANGE_LAST   ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION
 771
 772 /* values for radiobutton gadgets */
 773 #define ED_RADIOBUTTON_ID_PERCENTAGE    0
 774 #define ED_RADIOBUTTON_ID_QUANTITY      1
 775
 776 #define ED_NUM_RADIOBUTTONS             2
 777
 778 #define ED_RADIOBUTTON_ID_EDITOR_FIRST  ED_RADIOBUTTON_ID_PERCENTAGE
 779 #define ED_RADIOBUTTON_ID_EDITOR_LAST   ED_RADIOBUTTON_ID_QUANTITY
 780
 781 /* values for drawing area gadgets */
 782 #define ED_DRAWING_ID_DRAWING_LEVEL             0
 783 #define ED_DRAWING_ID_YAMYAM_CONTENT_0          1
 784 #define ED_DRAWING_ID_YAMYAM_CONTENT_1          2
 785 #define ED_DRAWING_ID_YAMYAM_CONTENT_2          3
 786 #define ED_DRAWING_ID_YAMYAM_CONTENT_3          4
 787 #define ED_DRAWING_ID_YAMYAM_CONTENT_4          5
 788 #define ED_DRAWING_ID_YAMYAM_CONTENT_5          6
 789 #define ED_DRAWING_ID_YAMYAM_CONTENT_6          7
 790 #define ED_DRAWING_ID_YAMYAM_CONTENT_7          8
 791 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_0      9
 792 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_1      10
 793 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_2      11
 794 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_3      12
 795 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_4      13
 796 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_5      14
 797 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_6      15
 798 #define ED_DRAWING_ID_MAGIC_BALL_CONTENT_7      16
 799 #define ED_DRAWING_ID_ANDROID_CONTENT           17
 800 #define ED_DRAWING_ID_AMOEBA_CONTENT            18
 801 #define ED_DRAWING_ID_START_ELEMENT             19
 802 #define ED_DRAWING_ID_ARTWORK_ELEMENT           20
 803 #define ED_DRAWING_ID_EXPLOSION_ELEMENT         21
 804 #define ED_DRAWING_ID_INVENTORY_CONTENT         22
 805 #define ED_DRAWING_ID_CUSTOM_GRAPHIC            23
 806 #define ED_DRAWING_ID_CUSTOM_CONTENT            24
 807 #define ED_DRAWING_ID_CUSTOM_MOVE_ENTER         25
 808 #define ED_DRAWING_ID_CUSTOM_MOVE_LEAVE         26
 809 #define ED_DRAWING_ID_CUSTOM_CHANGE_TARGET      27
 810 #define ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT     28
 811 #define ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER     29
 812 #define ED_DRAWING_ID_CUSTOM_CHANGE_ACTION      30
 813 #define ED_DRAWING_ID_GROUP_CONTENT             31
 814 #define ED_DRAWING_ID_RANDOM_BACKGROUND         32
 815
 816 #define ED_NUM_DRAWING_AREAS                    33
 817
 818
 819 /*
 820   -----------------------------------------------------------------------------
 821   some internally used definitions
 822   -----------------------------------------------------------------------------
 823 */
 824
 825 /* values for CopyLevelToUndoBuffer() */
 826 #define UNDO_IMMEDIATE                  0
 827 #define UNDO_ACCUMULATE                 1
 828
 829 /* values for scrollbars */
 830 #define ED_SCROLL_NO                    0
 831 #define ED_SCROLL_LEFT                  1
 832 #define ED_SCROLL_RIGHT                 2
 833 #define ED_SCROLL_UP                    4
 834 #define ED_SCROLL_DOWN                  8
 835
 836 /* screens in the level editor */
 837 #define ED_MODE_DRAWING                 0
 838 #define ED_MODE_INFO                    1
 839 #define ED_MODE_PROPERTIES              2
 840
 841 /* sub-screens in the global settings section */
 842 #define ED_MODE_LEVELINFO_LEVEL         ED_TEXTBUTTON_ID_LEVELINFO_LEVEL
 843 #define ED_MODE_LEVELINFO_EDITOR        ED_TEXTBUTTON_ID_LEVELINFO_EDITOR
 844
 845 /* sub-screens in the element properties section */
 846 #define ED_MODE_PROPERTIES_INFO         ED_TEXTBUTTON_ID_PROPERTIES_INFO
 847 #define ED_MODE_PROPERTIES_CONFIG       ED_TEXTBUTTON_ID_PROPERTIES_CONFIG
 848 #define ED_MODE_PROPERTIES_CONFIG_1     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_1
 849 #define ED_MODE_PROPERTIES_CONFIG_2     ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2
 850 #define ED_MODE_PROPERTIES_CHANGE       ED_TEXTBUTTON_ID_PROPERTIES_CHANGE
 851
 852 /* how many steps can be cancelled */
 853 #define NUM_UNDO_STEPS                  (64 + 1)
 854
 855 /* values for elements with score for certain actions */
 856 #define MIN_SCORE                       0
 857 #define MAX_SCORE                       999
 858
 859 /* values for elements with count for collecting */
 860 #define MIN_COLLECT_COUNT               0
 861 #define MAX_COLLECT_COUNT               999
 862
 863 /* values for random placement */
 864 #define RANDOM_USE_PERCENTAGE           0
 865 #define RANDOM_USE_QUANTITY             1
 866
 867 /* default value for element tile size in drawing area */
 868 #define DEFAULT_EDITOR_TILESIZE         MINI_TILESIZE
 869
 870
 871 /*
 872   -----------------------------------------------------------------------------
 873   some internally used data structure definitions
 874   -----------------------------------------------------------------------------
 875 */
 876
 877 static struct
 878 {
 879   int graphic;
 880   int gadget_id;
 881   struct XY *pos;
 882   int gadget_type;
 883   char *infotext;
 884   char shortcut;
 885 } controlbutton_info[ED_NUM_CTRL_BUTTONS] =
 886 {
 887   /* note: some additional characters are already reserved for "cheat mode"
 888      shortcuts (":XYZ" style) -- for details, see "events.c" */
 889
 890   /* ---------- toolbox control buttons ------------------------------------ */
 891
 892   {
 893     IMG_EDITOR_BUTTON_GFX_DRAW_SINGLE,          GADGET_ID_SINGLE_ITEMS,
 894     &editor.button.draw_single,                 GD_TYPE_RADIO_BUTTON,
 895     "draw single items",                        's'
 896   },
 897   {
 898     IMG_EDITOR_BUTTON_GFX_DRAW_CONNECTED,       GADGET_ID_CONNECTED_ITEMS,
 899     &editor.button.draw_connected,              GD_TYPE_RADIO_BUTTON,
 900     "draw connected items",                     'd'
 901   },
 902   {
 903     IMG_EDITOR_BUTTON_GFX_DRAW_LINE,            GADGET_ID_LINE,
 904     &editor.button.draw_line,                   GD_TYPE_RADIO_BUTTON,
 905     "draw lines",                               'l'
 906   },
 907   {
 908     IMG_EDITOR_BUTTON_GFX_DRAW_ARC,             GADGET_ID_ARC,
 909     &editor.button.draw_arc,                    GD_TYPE_RADIO_BUTTON,
 910     "draw arcs",                                'a'
 911   },
 912   {
 913     IMG_EDITOR_BUTTON_GFX_DRAW_RECTANGLE,       GADGET_ID_RECTANGLE,
 914     &editor.button.draw_rectangle,              GD_TYPE_RADIO_BUTTON,
 915     "draw outline rectangles",                  'r'
 916   },
 917   {
 918     IMG_EDITOR_BUTTON_GFX_DRAW_FILLED_BOX,      GADGET_ID_FILLED_BOX,
 919     &editor.button.draw_filled_box,             GD_TYPE_RADIO_BUTTON,
 920     "draw filled rectangles",                   'R'
 921   },
 922   {
 923     IMG_EDITOR_BUTTON_GFX_ROTATE_UP,            GADGET_ID_WRAP_UP,
 924     &editor.button.rotate_up,                   GD_TYPE_NORMAL_BUTTON,
 925     "wrap (rotate) level up",                   0
 926   },
 927   {
 928     IMG_EDITOR_BUTTON_GFX_DRAW_TEXT,            GADGET_ID_TEXT,
 929     &editor.button.draw_text,                   GD_TYPE_RADIO_BUTTON,
 930     "enter text elements",                      't'
 931   },
 932   {
 933     IMG_EDITOR_BUTTON_GFX_FLOOD_FILL,           GADGET_ID_FLOOD_FILL,
 934     &editor.button.flood_fill,                  GD_TYPE_RADIO_BUTTON,
 935     "flood fill",                               'f'
 936   },
 937   {
 938     IMG_EDITOR_BUTTON_GFX_ROTATE_LEFT,          GADGET_ID_WRAP_LEFT,
 939     &editor.button.rotate_left,                 GD_TYPE_NORMAL_BUTTON,
 940     "wrap (rotate) level left",                 0
 941   },
 942   {
 943     IMG_EDITOR_BUTTON_GFX_ZOOM_LEVEL,           GADGET_ID_ZOOM,
 944     &editor.button.zoom_level,                  GD_TYPE_NORMAL_BUTTON,
 945     "zoom level tile size",                     '-'
 946   },
 947   {
 948     IMG_EDITOR_BUTTON_GFX_ROTATE_RIGHT,         GADGET_ID_WRAP_RIGHT,
 949     &editor.button.rotate_right,                GD_TYPE_NORMAL_BUTTON,
 950     "wrap (rotate) level right",                0
 951   },
 952   {
 953     IMG_EDITOR_BUTTON_GFX_DRAW_RANDOM,          GADGET_ID_RANDOM_PLACEMENT,
 954     &editor.button.draw_random,                 GD_TYPE_NORMAL_BUTTON,
 955     "random element placement",                 0
 956   },
 957   {
 958     IMG_EDITOR_BUTTON_GFX_GRAB_BRUSH,           GADGET_ID_GRAB_BRUSH,
 959     &editor.button.grab_brush,                  GD_TYPE_RADIO_BUTTON,
 960     "grab brush",                               'b'
 961   },
 962   {
 963     IMG_EDITOR_BUTTON_GFX_ROTATE_DOWN,          GADGET_ID_WRAP_DOWN,
 964     &editor.button.rotate_down,                 GD_TYPE_NORMAL_BUTTON,
 965     "wrap (rotate) level down",                 0
 966   },
 967   {
 968     IMG_EDITOR_BUTTON_GFX_PICK_ELEMENT,         GADGET_ID_PICK_ELEMENT,
 969     &editor.button.pick_element,                GD_TYPE_RADIO_BUTTON,
 970     "pick drawing element",                     ','
 971   },
 972
 973   /* ---------- level control buttons -------------------------------------- */
 974
 975   {
 976     IMG_EDITOR_BUTTON_GFX_UNDO,                 GADGET_ID_UNDO,
 977     &editor.button.undo,                        GD_TYPE_NORMAL_BUTTON,
 978     "undo/redo last operation",                 'u'
 979   },
 980   {
 981     IMG_EDITOR_BUTTON_GFX_CONF,                 GADGET_ID_INFO,
 982     &editor.button.conf,                        GD_TYPE_NORMAL_BUTTON,
 983     "properties of level",                      'I'
 984   },
 985   {
 986     IMG_EDITOR_BUTTON_GFX_SAVE,                 GADGET_ID_SAVE,
 987     &editor.button.save,                        GD_TYPE_NORMAL_BUTTON,
 988     "save level",                               'S'
 989   },
 990   {
 991     IMG_EDITOR_BUTTON_GFX_CLEAR,                GADGET_ID_CLEAR,
 992     &editor.button.clear,                       GD_TYPE_NORMAL_BUTTON,
 993     "clear level",                              'C'
 994   },
 995   {
 996     IMG_EDITOR_BUTTON_GFX_TEST,                 GADGET_ID_TEST,
 997     &editor.button.test,                        GD_TYPE_NORMAL_BUTTON,
 998     "test level",                               'T'
 999   },
1000   {
1001     IMG_EDITOR_BUTTON_GFX_EXIT,                 GADGET_ID_EXIT,
1002     &editor.button.exit,                        GD_TYPE_NORMAL_BUTTON,
1003     "exit level editor",                        'E'
1004   },
1005
1006   /* ---------- CE and GE control buttons ---------------------------------- */
1007
1008   {
1009     IMG_EDITOR_BUTTON_GFX_CE_COPY_FROM,         GADGET_ID_CUSTOM_COPY_FROM,
1010     &editor.button.ce_copy_from,                GD_TYPE_RADIO_BUTTON,
1011     "copy settings from other element",         0
1012   },
1013   {
1014     IMG_EDITOR_BUTTON_GFX_CE_COPY_TO,           GADGET_ID_CUSTOM_COPY_TO,
1015     &editor.button.ce_copy_to,                  GD_TYPE_RADIO_BUTTON,
1016     "copy settings to other element",           0
1017   },
1018   {
1019     IMG_EDITOR_BUTTON_GFX_CE_SWAP,              GADGET_ID_CUSTOM_EXCHANGE,
1020     &editor.button.ce_swap,                     GD_TYPE_RADIO_BUTTON,
1021     "exchange element with other element",      0
1022   },
1023   {
1024     IMG_EDITOR_BUTTON_GFX_CE_COPY,              GADGET_ID_CUSTOM_COPY,
1025     &editor.button.ce_copy,                     GD_TYPE_NORMAL_BUTTON,
1026     "copy settings from this element",          0
1027   },
1028   {
1029     IMG_EDITOR_BUTTON_GFX_CE_PASTE,             GADGET_ID_CUSTOM_PASTE,
1030     &editor.button.ce_paste,                    GD_TYPE_NORMAL_BUTTON,
1031     "paste settings to this element",           0
1032   },
1033
1034   /* ---------- palette control buttons ------------------------------------ */
1035
1036   {
1037     IMG_EDITOR_BUTTON_GFX_PROPERTIES,           GADGET_ID_PROPERTIES,
1038     &editor.button.properties,                  GD_TYPE_NORMAL_BUTTON,
1039     "properties of drawing element",            'p'
1040   }
1041 };
1042
1043 static int random_placement_value = 10;
1044 static int random_placement_method = RANDOM_USE_QUANTITY;
1045 static int random_placement_background_element = EL_SAND;
1046 static boolean random_placement_background_restricted = FALSE;
1047 static boolean stick_element_properties_window = FALSE;
1048 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
1049 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
1050 static struct ElementChangeInfo custom_element_change;
1051 static struct ElementGroupInfo group_element_info;
1052 static struct ElementInfo custom_element;
1053
1054 static struct
1055 {
1056   int x, y;
1057   int min_value, max_value;
1058   int gadget_id_down, gadget_id_up;
1059   int gadget_id_text;
1060   int gadget_id_align;
1061   int *value;
1062   char *text_above, *text_left, *text_right;
1063 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
1064 {
1065   /* ---------- current level number --------------------------------------- */
1066
1067   {
1068     -1, -1,     /* these values are not constant, but can change at runtime */
1069     1,                                  100,
1070     GADGET_ID_SELECT_LEVEL_DOWN,        GADGET_ID_SELECT_LEVEL_UP,
1071     GADGET_ID_SELECT_LEVEL_TEXT,        GADGET_ID_NONE,
1072     &level_nr,
1073     NULL,                               NULL, NULL
1074   },
1075
1076   /* ---------- level and editor settings ---------------------------------- */
1077
1078   {
1079     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(4),
1080     MIN_LEV_FIELDX,                     MAX_LEV_FIELDX,
1081     GADGET_ID_LEVEL_XSIZE_DOWN,         GADGET_ID_LEVEL_XSIZE_UP,
1082     GADGET_ID_LEVEL_XSIZE_TEXT,         GADGET_ID_NONE,
1083     &level.fieldx,
1084     "playfield size:",                  NULL, "width",
1085   },
1086   {
1087     -1,                                 ED_LEVEL_SETTINGS_YPOS(4),
1088     MIN_LEV_FIELDY,                     MAX_LEV_FIELDY,
1089     GADGET_ID_LEVEL_YSIZE_DOWN,         GADGET_ID_LEVEL_YSIZE_UP,
1090     GADGET_ID_LEVEL_YSIZE_TEXT,         GADGET_ID_LEVEL_XSIZE_UP,
1091     &level.fieldy,
1092     NULL,                               " ", "height",
1093   },
1094   {
1095     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(5),
1096     0,                                  999,
1097     GADGET_ID_LEVEL_GEMSLIMIT_DOWN,     GADGET_ID_LEVEL_GEMSLIMIT_UP,
1098     GADGET_ID_LEVEL_GEMSLIMIT_TEXT,     GADGET_ID_NONE,
1099     &level.gems_needed,
1100     NULL,                               "number of gems to collect:", NULL
1101   },
1102   {
1103     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(7),
1104     0,                                  9999,
1105     GADGET_ID_LEVEL_TIMELIMIT_DOWN,     GADGET_ID_LEVEL_TIMELIMIT_UP,
1106     GADGET_ID_LEVEL_TIMELIMIT_TEXT,     GADGET_ID_NONE,
1107     &level.time,
1108     "time or step limit to solve level:", NULL, NULL
1109   },
1110   {
1111     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(9),
1112     0,                                  999,
1113     GADGET_ID_LEVEL_TIMESCORE_DOWN,     GADGET_ID_LEVEL_TIMESCORE_UP,
1114     GADGET_ID_LEVEL_TIMESCORE_TEXT,     GADGET_ID_NONE,
1115     &level.score[SC_TIME_BONUS],
1116     "score for each second/step left:", NULL, NULL
1117   },
1118   {
1119     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(12),
1120     0,                                  9999,
1121     GADGET_ID_LEVEL_RANDOM_SEED_DOWN,   GADGET_ID_LEVEL_RANDOM_SEED_UP,
1122     GADGET_ID_LEVEL_RANDOM_SEED_TEXT,   GADGET_ID_NONE,
1123     &level.random_seed,
1124     NULL,                               "random seed:", "(0 => random)"
1125   },
1126   {
1127     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1128     1,                                  100,
1129     GADGET_ID_LEVEL_RANDOM_DOWN,        GADGET_ID_LEVEL_RANDOM_UP,
1130     GADGET_ID_LEVEL_RANDOM_TEXT,        GADGET_ID_NONE,
1131     &random_placement_value,
1132     "random element placement:",        NULL, "in"
1133   },
1134
1135   /* ---------- element settings: configure (various elements) ------------- */
1136
1137   {
1138     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1139     MIN_SCORE,                          MAX_SCORE,
1140     GADGET_ID_ELEMENT_VALUE1_DOWN,      GADGET_ID_ELEMENT_VALUE1_UP,
1141     GADGET_ID_ELEMENT_VALUE1_TEXT,      GADGET_ID_NONE,
1142     NULL,                               /* will be set when used */
1143     NULL,                               NULL, NULL
1144   },
1145   {
1146     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
1147     MIN_SCORE,                          MAX_SCORE,
1148     GADGET_ID_ELEMENT_VALUE2_DOWN,      GADGET_ID_ELEMENT_VALUE2_UP,
1149     GADGET_ID_ELEMENT_VALUE2_TEXT,      GADGET_ID_NONE,
1150     NULL,                               /* will be set when used */
1151     NULL,                               NULL, NULL
1152   },
1153   {
1154     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1155     MIN_SCORE,                          MAX_SCORE,
1156     GADGET_ID_ELEMENT_VALUE3_DOWN,      GADGET_ID_ELEMENT_VALUE3_UP,
1157     GADGET_ID_ELEMENT_VALUE3_TEXT,      GADGET_ID_NONE,
1158     NULL,                               /* will be set when used */
1159     NULL,                               NULL, NULL
1160   },
1161   {
1162     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1163     MIN_SCORE,                          MAX_SCORE,
1164     GADGET_ID_ELEMENT_VALUE4_DOWN,      GADGET_ID_ELEMENT_VALUE4_UP,
1165     GADGET_ID_ELEMENT_VALUE4_TEXT,      GADGET_ID_NONE,
1166     NULL,                               /* will be set when used */
1167     NULL,                               NULL, NULL
1168   },
1169   {
1170     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1171     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1172     GADGET_ID_YAMYAM_CONTENT_DOWN,      GADGET_ID_YAMYAM_CONTENT_UP,
1173     GADGET_ID_YAMYAM_CONTENT_TEXT,      GADGET_ID_NONE,
1174     &level.num_yamyam_contents,
1175     NULL,                               NULL, "number of content areas"
1176   },
1177   {
1178     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1179     MIN_ELEMENT_CONTENTS,               MAX_ELEMENT_CONTENTS,
1180     GADGET_ID_BALL_CONTENT_DOWN,        GADGET_ID_BALL_CONTENT_UP,
1181     GADGET_ID_BALL_CONTENT_TEXT,        GADGET_ID_NONE,
1182     &level.num_ball_contents,
1183     NULL,                               NULL, "number of content areas"
1184   },
1185   {
1186     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
1187     MIN_ANDROID_ELEMENTS,               MAX_ANDROID_ELEMENTS,
1188     GADGET_ID_ANDROID_CONTENT_DOWN,     GADGET_ID_ANDROID_CONTENT_UP,
1189     GADGET_ID_ANDROID_CONTENT_TEXT,     GADGET_ID_NONE,
1190     &level.num_android_clone_elements,
1191     NULL,                               NULL, "number of clonable elements"
1192   },
1193   {
1194     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
1195     MIN_ENVELOPE_XSIZE,                 MAX_ENVELOPE_XSIZE,
1196     GADGET_ID_ENVELOPE_XSIZE_DOWN,      GADGET_ID_ENVELOPE_XSIZE_UP,
1197     GADGET_ID_ENVELOPE_XSIZE_TEXT,      GADGET_ID_NONE,
1198     NULL,                               /* will be set when used */
1199     NULL,                               NULL, "width",
1200   },
1201   {
1202     -1,                                 ED_ELEMENT_SETTINGS_YPOS(0),
1203     MIN_ENVELOPE_YSIZE,                 MAX_ENVELOPE_YSIZE,
1204     GADGET_ID_ENVELOPE_YSIZE_DOWN,      GADGET_ID_ENVELOPE_YSIZE_UP,
1205     GADGET_ID_ENVELOPE_YSIZE_TEXT,      GADGET_ID_ENVELOPE_XSIZE_UP,
1206     NULL,                               /* will be set when used */
1207     NULL,                               " ", "height",
1208   },
1209   {
1210     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
1211     MIN_INITIAL_INVENTORY_SIZE,         MAX_INITIAL_INVENTORY_SIZE,
1212     GADGET_ID_INVENTORY_SIZE_DOWN,      GADGET_ID_INVENTORY_SIZE_UP,
1213     GADGET_ID_INVENTORY_SIZE_TEXT,      GADGET_ID_NONE,
1214     &level.initial_inventory_size[0],
1215     NULL,                               NULL, "number of inventory elements"
1216   },
1217
1218   /* ---------- element settings: configure 1 (custom elements) ------------ */
1219
1220   {
1221     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1222     MIN_SCORE,                          MAX_SCORE,
1223     GADGET_ID_CUSTOM_SCORE_DOWN,        GADGET_ID_CUSTOM_SCORE_UP,
1224     GADGET_ID_CUSTOM_SCORE_TEXT,        GADGET_ID_NONE,
1225     &custom_element.collect_score_initial,
1226     NULL,                               "CE score", " "
1227   },
1228   {
1229     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1230     MIN_COLLECT_COUNT,                  MAX_COLLECT_COUNT,
1231     GADGET_ID_CUSTOM_GEMCOUNT_DOWN,     GADGET_ID_CUSTOM_GEMCOUNT_UP,
1232     GADGET_ID_CUSTOM_GEMCOUNT_TEXT,     GADGET_ID_CUSTOM_SCORE_UP,
1233     &custom_element.collect_count_initial,
1234     NULL,                               "CE count", NULL
1235   },
1236   {
1237     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1238     0,                                  9999,
1239     GADGET_ID_CUSTOM_VALUE_FIX_DOWN,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1240     GADGET_ID_CUSTOM_VALUE_FIX_TEXT,    GADGET_ID_NONE,
1241     &custom_element.ce_value_fixed_initial,
1242     NULL,                               "CE value", NULL
1243   },
1244   {
1245     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
1246     0,                                  9999,
1247     GADGET_ID_CUSTOM_VALUE_RND_DOWN,    GADGET_ID_CUSTOM_VALUE_RND_UP,
1248     GADGET_ID_CUSTOM_VALUE_RND_TEXT,    GADGET_ID_CUSTOM_VALUE_FIX_UP,
1249     &custom_element.ce_value_random_initial,
1250     NULL,                               "+random", NULL
1251   },
1252   {
1253     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(6),
1254     0,                                  999,
1255     GADGET_ID_PUSH_DELAY_FIX_DOWN,      GADGET_ID_PUSH_DELAY_FIX_UP,
1256     GADGET_ID_PUSH_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1257     &custom_element.push_delay_fixed,
1258     NULL,                               "push delay", NULL
1259   },
1260   {
1261     -1,                                 ED_ELEMENT_SETTINGS_YPOS(6),
1262     0,                                  999,
1263     GADGET_ID_PUSH_DELAY_RND_DOWN,      GADGET_ID_PUSH_DELAY_RND_UP,
1264     GADGET_ID_PUSH_DELAY_RND_TEXT,      GADGET_ID_PUSH_DELAY_FIX_UP,
1265     &custom_element.push_delay_random,
1266     NULL,                               "+random", NULL
1267   },
1268   {
1269     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(7),
1270     0,                                  999,
1271     GADGET_ID_DROP_DELAY_FIX_DOWN,      GADGET_ID_DROP_DELAY_FIX_UP,
1272     GADGET_ID_DROP_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1273     &custom_element.drop_delay_fixed,
1274     NULL,                               "drop delay", NULL
1275   },
1276   {
1277     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
1278     0,                                  999,
1279     GADGET_ID_DROP_DELAY_RND_DOWN,      GADGET_ID_DROP_DELAY_RND_UP,
1280     GADGET_ID_DROP_DELAY_RND_TEXT,      GADGET_ID_DROP_DELAY_FIX_UP,
1281     &custom_element.drop_delay_random,
1282     NULL,                               "+random", NULL
1283   },
1284
1285   /* ---------- element settings: configure 2 (custom elements) ------------ */
1286
1287   {
1288     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
1289     0,                                  999,
1290     GADGET_ID_MOVE_DELAY_FIX_DOWN,      GADGET_ID_MOVE_DELAY_FIX_UP,
1291     GADGET_ID_MOVE_DELAY_FIX_TEXT,      GADGET_ID_NONE,
1292     &custom_element.move_delay_fixed,
1293     NULL,                               "move delay", NULL
1294   },
1295   {
1296     -1,                                 ED_ELEMENT_SETTINGS_YPOS(5),
1297     0,                                  999,
1298     GADGET_ID_MOVE_DELAY_RND_DOWN,      GADGET_ID_MOVE_DELAY_RND_UP,
1299     GADGET_ID_MOVE_DELAY_RND_TEXT,      GADGET_ID_MOVE_DELAY_FIX_UP,
1300     &custom_element.move_delay_random,
1301     NULL,                               "+random", NULL
1302   },
1303   {
1304     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(12),
1305     0,                                  999,
1306     GADGET_ID_EXPLOSION_DELAY_DOWN,     GADGET_ID_EXPLOSION_DELAY_UP,
1307     GADGET_ID_EXPLOSION_DELAY_TEXT,     GADGET_ID_NONE,
1308     &custom_element.explosion_delay,
1309     NULL,                               "explosion delay", NULL
1310   },
1311   {
1312     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
1313     0,                                  999,
1314     GADGET_ID_IGNITION_DELAY_DOWN,      GADGET_ID_IGNITION_DELAY_UP,
1315     GADGET_ID_IGNITION_DELAY_TEXT,      GADGET_ID_NONE,
1316     &custom_element.ignition_delay,
1317     NULL,                               "ignition delay", "(by fire)"
1318   },
1319
1320   /* ---------- element settings: configure (group elements) --------------- */
1321
1322   {
1323     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1324     MIN_ELEMENTS_IN_GROUP,              MAX_ELEMENTS_IN_GROUP,
1325     GADGET_ID_GROUP_CONTENT_DOWN,       GADGET_ID_GROUP_CONTENT_UP,
1326     GADGET_ID_GROUP_CONTENT_TEXT,       GADGET_ID_NONE,
1327     &group_element_info.num_elements,
1328     NULL,                               NULL, "number of elements in group"
1329   },
1330
1331   /* ---------- element settings: advanced (custom elements) --------------- */
1332
1333   {
1334     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(2),
1335     0,                                  999,
1336     GADGET_ID_CHANGE_DELAY_FIX_DOWN,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1337     GADGET_ID_CHANGE_DELAY_FIX_TEXT,    GADGET_ID_NONE,
1338     &custom_element_change.delay_fixed,
1339     NULL,                               "CE delay", NULL,
1340   },
1341   {
1342     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
1343     0,                                  999,
1344     GADGET_ID_CHANGE_DELAY_RND_DOWN,    GADGET_ID_CHANGE_DELAY_RND_UP,
1345     GADGET_ID_CHANGE_DELAY_RND_TEXT,    GADGET_ID_CHANGE_DELAY_FIX_UP,
1346     &custom_element_change.delay_random,
1347     NULL,                               "+random", NULL
1348   },
1349   {
1350     ED_ELEMENT_SETTINGS_XPOS(3),        ED_ELEMENT_SETTINGS_YPOS(12),
1351     0,                                  100,
1352     GADGET_ID_CHANGE_CONT_RND_DOWN,     GADGET_ID_CHANGE_CONT_RND_UP,
1353     GADGET_ID_CHANGE_CONT_RND_TEXT,     GADGET_ID_NONE,
1354     &custom_element_change.random_percentage,
1355     NULL,                               "use random replace:", "%"
1356   },
1357 };
1358
1359 static struct
1360 {
1361   int x, y;
1362   int gadget_id;
1363   int size;
1364   char *value;
1365   char *text_above, *infotext;
1366 } textinput_info[ED_NUM_TEXTINPUT] =
1367 {
1368   {
1369     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(0),
1370     GADGET_ID_LEVEL_NAME,
1371     MAX_LEVEL_NAME_LEN,
1372     level.name,
1373     "Title:", "Title"
1374   },
1375   {
1376     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(2),
1377     GADGET_ID_LEVEL_AUTHOR,
1378     MAX_LEVEL_AUTHOR_LEN,
1379     level.author,
1380     "Author:", "Author"
1381   },
1382   {
1383     5 * MINI_TILEX - 2,                 5 * MINI_TILEY - ED_BORDER_SIZE + 1,
1384     GADGET_ID_ELEMENT_NAME,
1385     MAX_ELEMENT_NAME_LEN - 2,           /* currently 2 chars less editable */
1386     custom_element.description,
1387     NULL, "Element name"
1388   }
1389 };
1390
1391 static struct
1392 {
1393   int x, y;
1394   int gadget_id;
1395   int xsize, ysize;
1396   char *value;
1397   char *text_above, *infotext;
1398 } textarea_info[ED_NUM_TEXTAREAS] =
1399 {
1400   {
1401     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
1402     GADGET_ID_ENVELOPE_INFO,
1403     MAX_ENVELOPE_XSIZE, MAX_ENVELOPE_YSIZE,
1404     NULL,
1405     "Envelope Content:", "Envelope Content"
1406   }
1407 };
1408
1409 static struct ValueTextInfo options_time_or_steps[] =
1410 {
1411   { 0,                          "seconds"                       },
1412   { 1,                          "steps"                         },
1413
1414   { -1,                         NULL                            }
1415 };
1416
1417 static struct ValueTextInfo options_game_engine_type[] =
1418 {
1419   { GAME_ENGINE_TYPE_RND,       "Rocks'n'Diamonds"              },
1420   { GAME_ENGINE_TYPE_EM,        "Emerald Mine"                  },
1421   { GAME_ENGINE_TYPE_SP,        "Supaplex"                      },
1422
1423   { -1,                         NULL                            }
1424 };
1425
1426 static struct ValueTextInfo options_wind_direction[] =
1427 {
1428   { MV_START_NONE,              "none"                          },
1429   { MV_START_LEFT,              "left"                          },
1430   { MV_START_RIGHT,             "right"                         },
1431   { MV_START_UP,                "up"                            },
1432   { MV_START_DOWN,              "down"                          },
1433
1434   { -1,                         NULL                            }
1435 };
1436
1437 static struct ValueTextInfo options_player_speed[] =
1438 {
1439   { 0,                          "frozen"                        },
1440   { 1,                          "very slow"                     },
1441   { 2,                          "slow"                          },
1442   { 4,                          "normal"                        },
1443   { 8,                          "fast"                          },
1444   { 16,                         "very fast"                     },
1445   { 32,                         "ultrafast"                     },
1446
1447   { -1,                         NULL                            }
1448 };
1449
1450 static struct ValueTextInfo options_access_type[] =
1451 {
1452   { EP_WALKABLE,                "walkable"                      },
1453   { EP_PASSABLE,                "passable"                      },
1454
1455   { -1,                         NULL                            }
1456 };
1457
1458 static struct ValueTextInfo options_access_layer[] =
1459 {
1460   { EP_ACCESSIBLE_OVER,         "over"                          },
1461   { EP_ACCESSIBLE_INSIDE,       "inside"                        },
1462   { EP_ACCESSIBLE_UNDER,        "under"                         },
1463
1464   { -1,                         NULL                            }
1465 };
1466
1467 static struct ValueTextInfo options_access_protected[] =
1468 {
1469   { 0,                          "unprotected"                   },
1470   { 1,                          "protected"                     },
1471
1472   { -1,                         NULL                            }
1473 };
1474
1475 static struct ValueTextInfo options_access_direction[] =
1476 {
1477   { MV_NO_DIRECTION,            "no direction"                  },
1478   { MV_LEFT,                    "left"                          },
1479   { MV_RIGHT,                   "right"                         },
1480   { MV_UP,                      "up"                            },
1481   { MV_DOWN,                    "down"                          },
1482   { MV_LEFT  | MV_UP,           "left + up"                     },
1483   { MV_LEFT  | MV_DOWN,         "left + down"                   },
1484   { MV_RIGHT | MV_UP,           "right + up"                    },
1485   { MV_RIGHT | MV_DOWN,         "right + down"                  },
1486   { MV_HORIZONTAL,              "horizontal"                    },
1487   { MV_VERTICAL,                "vertical"                      },
1488   { MV_HORIZONTAL | MV_UP,      "horizontal + up"               },
1489   { MV_HORIZONTAL | MV_DOWN,    "horizontal + down"             },
1490   { MV_VERTICAL   | MV_LEFT,    "vertical + left"               },
1491   { MV_VERTICAL   | MV_RIGHT,   "vertical + right"              },
1492   { MV_ALL_DIRECTIONS,          "all directions"                },
1493
1494   { -1,                         NULL                            }
1495 };
1496
1497 static struct ValueTextInfo options_walk_to_action[] =
1498 {
1499   { EP_DIGGABLE,                "diggable"                      },
1500   { EP_COLLECTIBLE_ONLY,        "collectible"                   },
1501   { EP_DROPPABLE,               "collectible & droppable"       },
1502   { EP_THROWABLE,               "collectible & throwable"       },
1503   { EP_PUSHABLE,                "pushable"                      },
1504
1505   { -1,                         NULL                            }
1506 };
1507
1508 static struct ValueTextInfo options_move_pattern[] =
1509 {
1510   { MV_LEFT,                    "left"                          },
1511   { MV_RIGHT,                   "right"                         },
1512   { MV_UP,                      "up"                            },
1513   { MV_DOWN,                    "down"                          },
1514   { MV_HORIZONTAL,              "horizontal"                    },
1515   { MV_VERTICAL,                "vertical"                      },
1516   { MV_ALL_DIRECTIONS,          "all directions"                },
1517   { MV_WIND_DIRECTION,          "wind direction"                },
1518   { MV_TOWARDS_PLAYER,          "towards player"                },
1519   { MV_AWAY_FROM_PLAYER,        "away from player"              },
1520   { MV_ALONG_LEFT_SIDE,         "along left side"               },
1521   { MV_ALONG_RIGHT_SIDE,        "along right side"              },
1522   { MV_TURNING_LEFT,            "turning left"                  },
1523   { MV_TURNING_RIGHT,           "turning right"                 },
1524   { MV_TURNING_LEFT_RIGHT,      "turning left, right"           },
1525   { MV_TURNING_RIGHT_LEFT,      "turning right, left"           },
1526   { MV_TURNING_RANDOM,          "turning random"                },
1527   { MV_MAZE_RUNNER,             "maze runner style"             },
1528   { MV_MAZE_HUNTER,             "maze hunter style"             },
1529   { MV_WHEN_PUSHED,             "when pushed"                   },
1530   { MV_WHEN_DROPPED,            "when dropped/thrown"           },
1531
1532   { -1,                         NULL                            }
1533 };
1534
1535 static struct ValueTextInfo options_move_direction[] =
1536 {
1537   { MV_START_AUTOMATIC,         "automatic"                     },
1538   { MV_START_LEFT,              "left"                          },
1539   { MV_START_RIGHT,             "right"                         },
1540   { MV_START_UP,                "up"                            },
1541   { MV_START_DOWN,              "down"                          },
1542   { MV_START_RANDOM,            "random"                        },
1543   { MV_START_PREVIOUS,          "previous"                      },
1544
1545   { -1,                         NULL                            }
1546 };
1547
1548 static struct ValueTextInfo options_move_stepsize[] =
1549 {
1550   { 0,                          "not moving"                    },
1551   { 1,                          "very slow"                     },
1552   { 2,                          "slow"                          },
1553   { 4,                          "normal"                        },
1554   { 8,                          "fast"                          },
1555   { 16,                         "very fast"                     },
1556   { 32,                         "even faster"                   },
1557
1558   { -1,                         NULL                            }
1559 };
1560
1561 static struct ValueTextInfo options_move_leave_type[] =
1562 {
1563   { LEAVE_TYPE_UNLIMITED,       "leave behind"                  },
1564   { LEAVE_TYPE_LIMITED,         "change it to"                  },
1565
1566   { -1,                         NULL                            }
1567 };
1568
1569 static struct ValueTextInfo options_smash_targets[] =
1570 {
1571   { EP_CAN_SMASH_PLAYER,        "player"                        },
1572 #if 0
1573   { EP_CAN_SMASH_ENEMIES,       "enemies"                       },
1574 #endif
1575   { EP_CAN_SMASH_EVERYTHING,    "everything"                    },
1576
1577   { -1,                         NULL                            }
1578 };
1579
1580 static struct ValueTextInfo options_slippery_type[] =
1581 {
1582   { SLIPPERY_ANY_RANDOM,        "random"                        },
1583   { SLIPPERY_ANY_LEFT_RIGHT,    "left, right"                   },
1584   { SLIPPERY_ANY_RIGHT_LEFT,    "right, left"                   },
1585   { SLIPPERY_ONLY_LEFT,         "only left"                     },
1586   { SLIPPERY_ONLY_RIGHT,        "only right"                    },
1587
1588   { -1,                         NULL                            }
1589 };
1590
1591 static struct ValueTextInfo options_deadliness[] =
1592 {
1593   { EP_DONT_RUN_INTO,           "running into"                  },
1594   { EP_DONT_COLLIDE_WITH,       "colliding with"                },
1595   { EP_DONT_GET_HIT_BY,         "getting hit by"                },
1596   { EP_DONT_TOUCH,              "touching"                      },
1597
1598   { -1,                         NULL                            }
1599 };
1600
1601 static struct ValueTextInfo options_explosion_type[] =
1602 {
1603   { EXPLODES_3X3,               "3x3"                           },
1604   { EXPLODES_CROSS,             "3+3"                           },
1605   { EXPLODES_1X1,               "1x1"                           },
1606
1607   { -1,                         NULL                            }
1608 };
1609
1610 static struct ValueTextInfo options_time_units[] =
1611 {
1612   { 1,                          "frames"                        },
1613   { FRAMES_PER_SECOND,          "seconds"                       },
1614
1615   { -1,                         NULL                            }
1616 };
1617
1618 static struct ValueTextInfo options_change_direct_action[] =
1619 {
1620   { CE_TOUCHED_BY_PLAYER,       "touched by player"             },
1621   { CE_PRESSED_BY_PLAYER,       "pressed by player"             },
1622   { CE_SWITCHED_BY_PLAYER,      "switched by player"            },
1623   { CE_SNAPPED_BY_PLAYER,       "snapped by player"             },
1624   { CE_PUSHED_BY_PLAYER,        "pushed by player"              },
1625   { CE_ENTERED_BY_PLAYER,       "entered by player"             },
1626   { CE_LEFT_BY_PLAYER,          "left by player"                },
1627   { CE_DROPPED_BY_PLAYER,       "dropped/thrown by player"      },
1628   { CE_SWITCHED,                "switched"                      },
1629   { CE_HITTING_SOMETHING,       "hitting something"             },
1630   { CE_HIT_BY_SOMETHING,        "hit by something"              },
1631 #if 0
1632   { CE_BLOCKED,                 "blocked"                       },
1633 #endif
1634   { CE_IMPACT,                  "impact (on something)"         },
1635   { CE_SMASHED,                 "smashed (from above)"          },
1636 #if 0
1637   { CE_VALUE_CHANGES,           "CE value changes"              },
1638   { CE_SCORE_CHANGES,           "CE score changes"              },
1639 #endif
1640   { CE_VALUE_GETS_ZERO,         "CE value gets 0"               },
1641   { CE_SCORE_GETS_ZERO,         "CE score gets 0"               },
1642
1643   { -1,                         NULL                            }
1644 };
1645
1646 static struct ValueTextInfo options_change_other_action[] =
1647 {
1648   { CE_PLAYER_TOUCHES_X,        "player touches"                },
1649   { CE_PLAYER_PRESSES_X,        "player presses"                },
1650   { CE_PLAYER_SWITCHES_X,       "player switches"               },
1651   { CE_PLAYER_SNAPS_X,          "player snaps"                  },
1652   { CE_PLAYER_PUSHES_X,         "player pushes"                 },
1653   { CE_PLAYER_ENTERS_X,         "player enters"                 },
1654   { CE_PLAYER_LEAVES_X,         "player leaves"                 },
1655   { CE_PLAYER_DIGS_X,           "player digs"                   },
1656   { CE_PLAYER_COLLECTS_X,       "player collects"               },
1657   { CE_PLAYER_DROPS_X,          "player drops/throws"           },
1658   { CE_TOUCHING_X,              "touching"                      },
1659   { CE_HITTING_X,               "hitting"                       },
1660   { CE_DIGGING_X,               "digging"                       },
1661   { CE_HIT_BY_X,                "hit by"                        },
1662   { CE_SWITCH_OF_X,             "switch of"                     },
1663   { CE_CHANGE_OF_X,             "change by page of"             },
1664   { CE_EXPLOSION_OF_X,          "explosion of"                  },
1665   { CE_MOVE_OF_X,               "move of"                       },
1666   { CE_CREATION_OF_X,           "creation of"                   },
1667   { CE_VALUE_CHANGES_OF_X,      "CE value changes of"           },
1668   { CE_SCORE_CHANGES_OF_X,      "CE score changes of"           },
1669   { CE_VALUE_GETS_ZERO_OF_X,    "CE value gets 0 of"            },
1670   { CE_SCORE_GETS_ZERO_OF_X,    "CE score gets 0 of"            },
1671
1672   { -1,                         NULL                            }
1673 };
1674
1675 static struct ValueTextInfo options_change_trigger_side[] =
1676 {
1677   { CH_SIDE_LEFT,               "left"                          },
1678   { CH_SIDE_RIGHT,              "right"                         },
1679   { CH_SIDE_TOP,                "top"                           },
1680   { CH_SIDE_BOTTOM,             "bottom"                        },
1681   { CH_SIDE_LEFT_RIGHT,         "left/right"                    },
1682   { CH_SIDE_TOP_BOTTOM,         "top/bottom"                    },
1683   { CH_SIDE_ANY,                "any"                           },
1684
1685   { -1,                         NULL                            }
1686 };
1687
1688 static struct ValueTextInfo options_change_trigger_player[] =
1689 {
1690   { CH_PLAYER_1,                "1"                             },
1691   { CH_PLAYER_2,                "2"                             },
1692   { CH_PLAYER_3,                "3"                             },
1693   { CH_PLAYER_4,                "4"                             },
1694   { CH_PLAYER_ANY,              "any"                           },
1695
1696   { -1,                         NULL                            }
1697 };
1698
1699 static struct ValueTextInfo options_change_trigger_page[] =
1700 {
1701   { (1 << 0),                   "1"                             },
1702   { (1 << 1),                   "2"                             },
1703   { (1 << 2),                   "3"                             },
1704   { (1 << 3),                   "4"                             },
1705   { (1 << 4),                   "5"                             },
1706   { (1 << 5),                   "6"                             },
1707   { (1 << 6),                   "7"                             },
1708   { (1 << 7),                   "8"                             },
1709   { (1 << 8),                   "9"                             },
1710   { (1 << 9),                   "10"                            },
1711   { (1 << 10),                  "11"                            },
1712   { (1 << 11),                  "12"                            },
1713   { (1 << 12),                  "13"                            },
1714   { (1 << 13),                  "14"                            },
1715   { (1 << 14),                  "15"                            },
1716   { (1 << 15),                  "16"                            },
1717   { (1 << 16),                  "17"                            },
1718   { (1 << 17),                  "18"                            },
1719   { (1 << 18),                  "19"                            },
1720   { (1 << 19),                  "20"                            },
1721   { (1 << 20),                  "21"                            },
1722   { (1 << 21),                  "22"                            },
1723   { (1 << 22),                  "23"                            },
1724   { (1 << 23),                  "24"                            },
1725   { (1 << 24),                  "25"                            },
1726   { (1 << 25),                  "26"                            },
1727   { (1 << 26),                  "27"                            },
1728   { (1 << 27),                  "28"                            },
1729   { (1 << 28),                  "29"                            },
1730   { (1 << 29),                  "30"                            },
1731   { (1 << 30),                  "31"                            },
1732   { (1 << 31),                  "32"                            },
1733   { CH_PAGE_ANY,                "any"                           },
1734
1735   { -1,                         NULL                            }
1736 };
1737
1738 static struct ValueTextInfo options_change_replace_when[] =
1739 {
1740   { CP_WHEN_EMPTY,              "empty"                         },
1741   { CP_WHEN_WALKABLE,           "walkable"                      },
1742   { CP_WHEN_DIGGABLE,           "diggable"                      },
1743   { CP_WHEN_COLLECTIBLE,        "collectible"                   },
1744   { CP_WHEN_REMOVABLE,          "removable"                     },
1745   { CP_WHEN_DESTRUCTIBLE,       "destructible"                  },
1746
1747   { -1,                         NULL                            }
1748 };
1749
1750 static struct ValueTextInfo options_action_type[] =
1751 {
1752   { CA_NO_ACTION,               "no action"                     },
1753   { CA_UNDEFINED,               " "                             },
1754   { CA_HEADLINE_LEVEL_ACTIONS,  "[level]"                       },
1755   { CA_RESTART_LEVEL,           "restart level"                 },
1756   { CA_SHOW_ENVELOPE,           "show envelope"                 },
1757   { CA_SET_LEVEL_TIME,          "set time"                      },
1758   { CA_SET_LEVEL_SCORE,         "set score"                     },
1759   { CA_SET_LEVEL_GEMS,          "set gems"                      },
1760   { CA_SET_LEVEL_WIND,          "set wind dir."                 },
1761   { CA_SET_LEVEL_RANDOM_SEED,   "set rand. seed"                },
1762   { CA_UNDEFINED,               " "                             },
1763   { CA_HEADLINE_PLAYER_ACTIONS, "[player]"                      },
1764   { CA_MOVE_PLAYER,             "move player"                   },
1765   { CA_EXIT_PLAYER,             "exit player"                   },
1766   { CA_KILL_PLAYER,             "kill player"                   },
1767   { CA_SET_PLAYER_KEYS,         "set keys"                      },
1768   { CA_SET_PLAYER_SPEED,        "set speed"                     },
1769   { CA_SET_PLAYER_SHIELD,       "set shield"                    },
1770   { CA_SET_PLAYER_GRAVITY,      "set gravity"                   },
1771   { CA_SET_PLAYER_ARTWORK,      "set artwork"                   },
1772   { CA_SET_PLAYER_INVENTORY,    "set inventory"                 },
1773   { CA_UNDEFINED,               " "                             },
1774   { CA_HEADLINE_CE_ACTIONS,     "[CE]"                          },
1775   { CA_SET_CE_VALUE,            "set CE value"                  },
1776   { CA_SET_CE_SCORE,            "set CE score"                  },
1777   { CA_SET_CE_ARTWORK,          "set CE artwork"                },
1778   { CA_UNDEFINED,               " "                             },
1779   { CA_HEADLINE_ENGINE_ACTIONS, "[engine]"                      },
1780   { CA_SET_ENGINE_SCAN_MODE,    "set scan mode"                 },
1781
1782   { -1,                         NULL                            }
1783 };
1784
1785 static struct ValueTextInfo options_action_mode_none[] =
1786 {
1787   { CA_MODE_UNDEFINED,          " "                             },
1788
1789   { -1,                         NULL                            }
1790 };
1791
1792 static struct ValueTextInfo options_action_mode_assign[] =
1793 {
1794   { CA_MODE_SET,                "="                             },
1795
1796   { -1,                         NULL                            }
1797 };
1798
1799 static struct ValueTextInfo options_action_mode_add_remove[] =
1800 {
1801   { CA_MODE_ADD,                "+"                             },
1802   { CA_MODE_SUBTRACT,           "-"                             },
1803
1804   { -1,                         NULL                            }
1805 };
1806
1807 static struct ValueTextInfo options_action_mode_calculate[] =
1808 {
1809   { CA_MODE_SET,                "="                             },
1810   { CA_MODE_ADD,                "+"                             },
1811   { CA_MODE_SUBTRACT,           "-"                             },
1812   { CA_MODE_MULTIPLY,           "*"                             },
1813   { CA_MODE_DIVIDE,             "/"                             },
1814   { CA_MODE_MODULO,             "%"                             },
1815
1816   { -1,                         NULL                            }
1817 };
1818
1819 static struct ValueTextInfo options_action_arg_none[] =
1820 {
1821   { CA_ARG_UNDEFINED,           "         "                     },
1822
1823   { -1,                         NULL                            }
1824 };
1825
1826 static struct ValueTextInfo options_action_arg_player[] =
1827 {
1828   { CA_ARG_PLAYER_HEADLINE,     "[player]"                      },
1829   { CA_ARG_PLAYER_1,            "1"                             },
1830   { CA_ARG_PLAYER_2,            "2"                             },
1831   { CA_ARG_PLAYER_3,            "3"                             },
1832   { CA_ARG_PLAYER_4,            "4"                             },
1833   { CA_ARG_PLAYER_ANY,          "any"                           },
1834   { CA_ARG_PLAYER_TRIGGER,      "trigger"                       },
1835   { CA_ARG_PLAYER_ACTION,       "action ->"                     },
1836
1837   { -1,                         NULL                            }
1838 };
1839
1840 static struct ValueTextInfo options_action_arg_number[] =
1841 {
1842   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
1843   { CA_ARG_0,                   "0"                             },
1844   { CA_ARG_1,                   "1"                             },
1845   { CA_ARG_2,                   "2"                             },
1846   { CA_ARG_3,                   "3"                             },
1847   { CA_ARG_4,                   "4"                             },
1848   { CA_ARG_5,                   "5"                             },
1849   { CA_ARG_10,                  "10"                            },
1850   { CA_ARG_100,                 "100"                           },
1851   { CA_ARG_1000,                "1000"                          },
1852   { CA_ARG_UNDEFINED,           " "                             },
1853   { CA_ARG_NUMBER_MIN,          "min"                           },
1854   { CA_ARG_NUMBER_MAX,          "max"                           },
1855   { CA_ARG_UNDEFINED,           " "                             },
1856   { CA_ARG_NUMBER_RESET,        "reset"                         },
1857   { CA_ARG_UNDEFINED,           " "                             },
1858   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
1859   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
1860   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
1861   { CA_ARG_UNDEFINED,           " "                             },
1862   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
1863   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
1864   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
1865   { CA_ARG_UNDEFINED,           " "                             },
1866   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
1867   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
1868   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
1869   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
1870   { CA_ARG_UNDEFINED,           " "                             },
1871   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
1872   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
1873   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
1874   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
1875
1876   { -1,                         NULL                            }
1877 };
1878
1879 static struct ValueTextInfo options_action_arg_value[] =
1880 {
1881   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
1882   { CA_ARG_0,                   "0"                             },
1883   { CA_ARG_1,                   "1"                             },
1884   { CA_ARG_2,                   "2"                             },
1885   { CA_ARG_3,                   "3"                             },
1886   { CA_ARG_4,                   "4"                             },
1887   { CA_ARG_5,                   "5"                             },
1888   { CA_ARG_10,                  "10"                            },
1889   { CA_ARG_100,                 "100"                           },
1890   { CA_ARG_1000,                "1000"                          },
1891   { CA_ARG_UNDEFINED,           " "                             },
1892   { CA_ARG_NUMBER_MIN,          "min"                           },
1893   { CA_ARG_NUMBER_MAX,          "max"                           },
1894   { CA_ARG_UNDEFINED,           " "                             },
1895   { CA_ARG_NUMBER_RESET,        "reset"                         },
1896   { CA_ARG_UNDEFINED,           " "                             },
1897   { CA_ARG_NUMBER_CE_VALUE,     "CE value"                      },
1898   { CA_ARG_NUMBER_CE_SCORE,     "CE score"                      },
1899   { CA_ARG_NUMBER_CE_DELAY,     "CE delay"                      },
1900   { CA_ARG_UNDEFINED,           " "                             },
1901   { CA_ARG_NUMBER_LEVEL_TIME,   "time"                          },
1902   { CA_ARG_NUMBER_LEVEL_GEMS,   "gems"                          },
1903   { CA_ARG_NUMBER_LEVEL_SCORE,  "score"                         },
1904   { CA_ARG_UNDEFINED,           " "                             },
1905   { CA_ARG_ELEMENT_CV_HEADLINE, "[CE value]"                    },
1906   { CA_ARG_ELEMENT_CV_TARGET,   "target"                        },
1907   { CA_ARG_ELEMENT_CV_TRIGGER,  "trigger"                       },
1908   { CA_ARG_ELEMENT_CV_ACTION,   "action ->"                     },
1909   { CA_ARG_UNDEFINED,           " "                             },
1910   { CA_ARG_ELEMENT_CS_HEADLINE, "[CE score]"                    },
1911   { CA_ARG_ELEMENT_CS_TARGET,   "target"                        },
1912   { CA_ARG_ELEMENT_CS_TRIGGER,  "trigger"                       },
1913   { CA_ARG_ELEMENT_CS_ACTION,   "action ->"                     },
1914   { CA_ARG_UNDEFINED,           " "                             },
1915   { CA_ARG_ELEMENT_NR_HEADLINE, "[element]"                     },
1916   { CA_ARG_ELEMENT_NR_TARGET,   "target"                        },
1917   { CA_ARG_ELEMENT_NR_TRIGGER,  "trigger"                       },
1918   { CA_ARG_ELEMENT_NR_ACTION,   "action ->"                     },
1919
1920   { -1,                         NULL                            }
1921 };
1922
1923 static struct ValueTextInfo options_action_arg_envelope[] =
1924 {
1925   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
1926   { CA_ARG_1,                   "1"                             },
1927   { CA_ARG_2,                   "2"                             },
1928   { CA_ARG_3,                   "3"                             },
1929   { CA_ARG_4,                   "4"                             },
1930   { CA_ARG_UNDEFINED,           " "                             },
1931   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
1932   { CA_ARG_ELEMENT_TARGET,      "target"                        },
1933   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
1934   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
1935
1936   { -1,                         NULL                            }
1937 };
1938
1939 static struct ValueTextInfo options_action_arg_key[] =
1940 {
1941   { CA_ARG_NUMBER_HEADLINE,     "[number]"                      },
1942   { CA_ARG_1,                   "1"                             },
1943   { CA_ARG_2,                   "2"                             },
1944   { CA_ARG_3,                   "3"                             },
1945   { CA_ARG_4,                   "4"                             },
1946   { CA_ARG_5,                   "5"                             },
1947   { CA_ARG_6,                   "6"                             },
1948   { CA_ARG_7,                   "7"                             },
1949   { CA_ARG_8,                   "8"                             },
1950   { CA_ARG_UNDEFINED,           " "                             },
1951   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
1952   { CA_ARG_ELEMENT_TARGET,      "target"                        },
1953   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
1954   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
1955
1956   { -1,                         NULL                            }
1957 };
1958
1959 static struct ValueTextInfo options_action_arg_speed[] =
1960 {
1961   { CA_ARG_SPEED_HEADLINE,      "[speed]"                       },
1962   { CA_ARG_SPEED_NOT_MOVING,    "frozen"                        },
1963   { CA_ARG_SPEED_VERY_SLOW,     "very slow"                     },
1964   { CA_ARG_SPEED_SLOW,          "slow"                          },
1965   { CA_ARG_SPEED_NORMAL,        "normal"                        },
1966   { CA_ARG_SPEED_FAST,          "fast"                          },
1967   { CA_ARG_SPEED_VERY_FAST,     "very fast"                     },
1968   { CA_ARG_SPEED_EVEN_FASTER,   "ultrafast"                     },
1969   { CA_ARG_UNDEFINED,           " "                             },
1970   { CA_ARG_SPEED_SLOWER,        "slower"                        },
1971   { CA_ARG_SPEED_FASTER,        "faster"                        },
1972   { CA_ARG_UNDEFINED,           " "                             },
1973   { CA_ARG_SPEED_RESET,         "reset"                         },
1974
1975   { -1,                         NULL                            }
1976 };
1977
1978 static struct ValueTextInfo options_action_arg_shield[] =
1979 {
1980   { CA_ARG_SHIELD_HEADLINE,     "[shield]"                      },
1981   { CA_ARG_SHIELD_OFF,          "off"                           },
1982   { CA_ARG_SHIELD_NORMAL,       "normal"                        },
1983   { CA_ARG_SHIELD_DEADLY,       "deadly"                        },
1984
1985   { -1,                         NULL                            }
1986 };
1987
1988 static struct ValueTextInfo options_action_arg_artwork[] =
1989 {
1990   { CA_ARG_ELEMENT_HEADLINE,    "[element]"                     },
1991   { CA_ARG_ELEMENT_TARGET,      "target"                        },
1992   { CA_ARG_ELEMENT_TRIGGER,     "trigger"                       },
1993   { CA_ARG_ELEMENT_ACTION,      "action ->"                     },
1994   { CA_ARG_UNDEFINED,           " "                             },
1995   { CA_ARG_ELEMENT_RESET,       "reset"                         },
1996
1997   { -1,                         NULL                            }
1998 };
1999
2000 static struct ValueTextInfo options_action_arg_gravity[] =
2001 {
2002   { CA_ARG_GRAVITY_HEADLINE,    "[gravity]"                     },
2003   { CA_ARG_GRAVITY_ON,          "on"                            },
2004   { CA_ARG_GRAVITY_OFF,         "off"                           },
2005   { CA_ARG_GRAVITY_TOGGLE,      "toggle"                        },
2006
2007   { -1,                         NULL                            }
2008 };
2009
2010 static struct ValueTextInfo options_action_arg_direction[] =
2011 {
2012   { CA_ARG_DIRECTION_HEADLINE,  "[dir.]"                        },
2013   { CA_ARG_DIRECTION_NONE,      "none"                          },
2014   { CA_ARG_DIRECTION_LEFT,      "left"                          },
2015   { CA_ARG_DIRECTION_RIGHT,     "right"                         },
2016   { CA_ARG_DIRECTION_UP,        "up"                            },
2017   { CA_ARG_DIRECTION_DOWN,      "down"                          },
2018   { CA_ARG_DIRECTION_TRIGGER,   "trigger"                       },
2019   { CA_ARG_DIRECTION_TRIGGER_BACK, "-trigger"                   },
2020
2021   { -1,                         NULL                            }
2022 };
2023
2024 static struct ValueTextInfo options_action_arg_scan_mode[] =
2025 {
2026   { CA_ARG_SCAN_MODE_HEADLINE,  "[mode]"                        },
2027   { CA_ARG_SCAN_MODE_NORMAL,    "normal"                        },
2028   { CA_ARG_SCAN_MODE_REVERSE,   "reverse"                       },
2029
2030   { -1,                         NULL                            }
2031 };
2032
2033 static struct ValueTextInfo options_action_arg_inventory[] =
2034 {
2035   { CA_ARG_INVENTORY_HEADLINE,  "[add]"                         },
2036   { CA_ARG_ELEMENT_TARGET,      "+ target"                      },
2037   { CA_ARG_ELEMENT_TRIGGER,     "+ trigger"                     },
2038   { CA_ARG_ELEMENT_ACTION,      "+ action"                      },
2039   { CA_ARG_UNDEFINED,           " "                             },
2040   { CA_ARG_INVENTORY_RM_HEADLINE,"[remove]"                     },
2041   { CA_ARG_INVENTORY_RM_TARGET, "- target"                      },
2042   { CA_ARG_INVENTORY_RM_TRIGGER,"- trigger"                     },
2043   { CA_ARG_INVENTORY_RM_ACTION, "- action"                      },
2044   { CA_ARG_INVENTORY_RM_FIRST,  "- first"                       },
2045   { CA_ARG_INVENTORY_RM_LAST,   "- last"                        },
2046   { CA_ARG_INVENTORY_RM_ALL,    "- all"                         },
2047   { CA_ARG_UNDEFINED,           " "                             },
2048   { CA_ARG_INVENTORY_RESET,     "reset"                         },
2049
2050   { -1,                         NULL                            }
2051 };
2052
2053 static char options_change_page_strings[MAX_CHANGE_PAGES][10];
2054 static struct ValueTextInfo options_change_page[MAX_CHANGE_PAGES + 1] =
2055 {
2056   { -1,                         NULL                            }
2057 };
2058
2059 static struct ValueTextInfo options_group_choice_mode[] =
2060 {
2061   { ANIM_RANDOM,                "random"                        },
2062   { ANIM_LOOP,                  "loop"                          },
2063   { ANIM_LINEAR,                "linear"                        },
2064   { ANIM_PINGPONG,              "pingpong"                      },
2065   { ANIM_PINGPONG2,             "pingpong 2"                    },
2066
2067   { -1,                         NULL                            }
2068 };
2069
2070 static struct ValueTextInfo *action_arg_modes[] =
2071 {
2072   options_action_mode_none,
2073   options_action_mode_assign,
2074   options_action_mode_add_remove,
2075   options_action_mode_calculate,
2076 };
2077
2078 static struct
2079 {
2080   int value;
2081   int mode;
2082   struct ValueTextInfo *options;
2083 }
2084 action_arg_options[] =
2085 {
2086   { CA_NO_ACTION,               0,      options_action_arg_none,        },
2087   { CA_EXIT_PLAYER,             0,      options_action_arg_player,      },
2088   { CA_KILL_PLAYER,             0,      options_action_arg_player,      },
2089   { CA_MOVE_PLAYER,             0,      options_action_arg_direction,   },
2090   { CA_RESTART_LEVEL,           0,      options_action_arg_none,        },
2091   { CA_SHOW_ENVELOPE,           0,      options_action_arg_envelope,    },
2092   { CA_SET_LEVEL_TIME,          3,      options_action_arg_number,      },
2093   { CA_SET_LEVEL_GEMS,          3,      options_action_arg_number,      },
2094   { CA_SET_LEVEL_SCORE,         3,      options_action_arg_number,      },
2095   { CA_SET_LEVEL_WIND,          1,      options_action_arg_direction,   },
2096   { CA_SET_LEVEL_RANDOM_SEED,   1,      options_action_arg_number,      },
2097   { CA_SET_PLAYER_KEYS,         2,      options_action_arg_key,         },
2098   { CA_SET_PLAYER_SPEED,        1,      options_action_arg_speed,       },
2099   { CA_SET_PLAYER_SHIELD,       1,      options_action_arg_shield,      },
2100   { CA_SET_PLAYER_GRAVITY,      1,      options_action_arg_gravity,     },
2101   { CA_SET_PLAYER_ARTWORK,      1,      options_action_arg_artwork,     },
2102   { CA_SET_PLAYER_INVENTORY,    0,      options_action_arg_inventory,   },
2103   { CA_SET_CE_VALUE,            3,      options_action_arg_value,       },
2104   { CA_SET_CE_SCORE,            3,      options_action_arg_value,       },
2105   { CA_SET_CE_ARTWORK,          1,      options_action_arg_artwork,     },
2106   { CA_SET_ENGINE_SCAN_MODE,    1,      options_action_arg_scan_mode,   },
2107
2108   { -1,                         FALSE,  NULL                            }
2109 };
2110
2111 static struct
2112 {
2113   int x, y;
2114   int gadget_id;
2115   int gadget_id_align;
2116   int size;     /* char size of selectbox or '-1' (dynamically determined) */
2117   struct ValueTextInfo *options;
2118   int *value;
2119   char *text_left, *text_right, *infotext;
2120 } selectbox_info[ED_NUM_SELECTBOX] =
2121 {
2122   /* ---------- level and editor settings ---------------------------------- */
2123
2124   {
2125     -1,                                 ED_LEVEL_SETTINGS_YPOS(7),
2126     GADGET_ID_TIME_OR_STEPS,            GADGET_ID_LEVEL_TIMELIMIT_UP,
2127     -1,
2128     options_time_or_steps,
2129     &level.use_step_counter,
2130     NULL, "(0 => no limit)",            "time or step limit"
2131   },
2132   {
2133     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(11),
2134     GADGET_ID_GAME_ENGINE_TYPE,         GADGET_ID_NONE,
2135     -1,
2136     options_game_engine_type,
2137     &level.game_engine_type,
2138     "game engine:", NULL,               "game engine"
2139   },
2140   {
2141     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(10),
2142     GADGET_ID_WIND_DIRECTION,           GADGET_ID_NONE,
2143     -1,
2144     options_wind_direction,
2145     &level.wind_direction_initial,
2146     "initial wind direction:", NULL,    "initial wind direction"
2147   },
2148
2149   /* ---------- element settings: configure (several elements) ------------- */
2150
2151   {
2152     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(6),
2153     GADGET_ID_PLAYER_SPEED,             GADGET_ID_NONE,
2154     -1,
2155     options_player_speed,
2156     &level.initial_player_stepsize[0],
2157     "initial player speed:", NULL,      "initial player speed"
2158   },
2159
2160   /* ---------- element settings: configure 1 (custom elements) ------------ */
2161
2162   {
2163     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2164     GADGET_ID_CUSTOM_ACCESS_TYPE,       GADGET_ID_NONE,
2165     -1,
2166     options_access_type,
2167     &custom_element.access_type,
2168     NULL, NULL,                         "type of access to this field"
2169   },
2170   {
2171     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2172     GADGET_ID_CUSTOM_ACCESS_LAYER,      GADGET_ID_CUSTOM_ACCESS_TYPE,
2173     -1,
2174     options_access_layer,
2175     &custom_element.access_layer,
2176     NULL, NULL,                         "layer of access for this field"
2177   },
2178   {
2179     -1,                                 ED_ELEMENT_SETTINGS_YPOS(2),
2180     GADGET_ID_CUSTOM_ACCESS_PROTECTED,  GADGET_ID_CUSTOM_ACCESS_LAYER,
2181     -1,
2182     options_access_protected,
2183     &custom_element.access_protected,
2184     NULL, NULL,                         "protected access for this field"
2185   },
2186   {
2187     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2188     GADGET_ID_CUSTOM_ACCESS_DIRECTION,  GADGET_ID_NONE,
2189     -1,
2190     options_access_direction,
2191     &custom_element.access_direction,
2192     "from", NULL,                       "access direction for this field"
2193   },
2194   {
2195     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2196     GADGET_ID_CUSTOM_WALK_TO_ACTION,    GADGET_ID_NONE,
2197     -1,
2198     options_walk_to_action,
2199     &custom_element.walk_to_action,
2200     NULL, NULL,                         "diggable/collectible/pushable"
2201   },
2202
2203   /* ---------- element settings: configure 2 (custom elements) ------------ */
2204
2205   {
2206     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(1),
2207     GADGET_ID_CUSTOM_MOVE_PATTERN,      GADGET_ID_NONE,
2208     -1,
2209     options_move_pattern,
2210     &custom_element.move_pattern,
2211     "can move", NULL,                   "element move pattern"
2212   },
2213   {
2214     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2215     GADGET_ID_CUSTOM_MOVE_DIRECTION,    GADGET_ID_NONE,
2216     -1,
2217     options_move_direction,
2218     &custom_element.move_direction_initial,
2219     "starts moving", NULL,              "initial element move direction"
2220   },
2221   {
2222     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2223     GADGET_ID_CUSTOM_MOVE_STEPSIZE,     GADGET_ID_NONE,
2224     -1,
2225     options_move_stepsize,
2226     &custom_element.move_stepsize,
2227     "move/fall speed", NULL,            "speed of element movement"
2228   },
2229   {
2230     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(3),
2231     GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,   GADGET_ID_NONE,
2232     -1,
2233     options_move_leave_type,
2234     &custom_element.move_leave_type,
2235     "can dig:    can", ":",             "leave behind or change element"
2236   },
2237   {
2238     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
2239     GADGET_ID_CUSTOM_SMASH_TARGETS,     GADGET_ID_CUSTOM_CAN_SMASH,
2240     -1,
2241     options_smash_targets,
2242     &custom_element.smash_targets,
2243     "can smash", NULL,                  "elements that can be smashed"
2244   },
2245   {
2246     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
2247     GADGET_ID_CUSTOM_SLIPPERY_TYPE,     GADGET_ID_NONE,
2248     -1,
2249     options_slippery_type,
2250     &custom_element.slippery_type,
2251     "slippery", NULL,                   "where other elements fall down"
2252   },
2253   {
2254     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
2255     GADGET_ID_CUSTOM_DEADLINESS,        GADGET_ID_NONE,
2256     -1,
2257     options_deadliness,
2258     &custom_element.deadliness,
2259     "deadly when", NULL,                "deadliness of element"
2260   },
2261   {
2262     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(10),
2263     GADGET_ID_CUSTOM_EXPLOSION_TYPE,    GADGET_ID_NONE,
2264     -1,
2265     options_explosion_type,
2266     &custom_element.explosion_type,
2267     "can explode", NULL,                "explosion type"
2268   },
2269
2270   /* ---------- element settings: advanced (custom elements) --------------- */
2271
2272   {
2273     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(3),
2274     GADGET_ID_CHANGE_TIME_UNITS,        GADGET_ID_NONE,
2275     -1,
2276     options_time_units,
2277     &custom_element_change.delay_frames,
2278     "delay time given in", NULL,        "delay time units for change"
2279   },
2280   {
2281     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(4),
2282     GADGET_ID_CHANGE_DIRECT_ACTION,     GADGET_ID_NONE,
2283     -1,
2284     options_change_direct_action,
2285     &custom_element_change.direct_action,
2286     NULL, NULL,                         "type of direct action"
2287   },
2288   {
2289     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(5),
2290     GADGET_ID_CHANGE_OTHER_ACTION,      GADGET_ID_NONE,
2291     -1,
2292     options_change_other_action,
2293     &custom_element_change.other_action,
2294     NULL, "element:",                   "type of other element action"
2295   },
2296   {
2297     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(6),
2298     GADGET_ID_CHANGE_SIDE,              GADGET_ID_NONE,
2299     -1,
2300     options_change_trigger_side,
2301     &custom_element_change.trigger_side,
2302     "at", "side",                       "element side triggering change"
2303   },
2304   {
2305     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2306     GADGET_ID_CHANGE_PLAYER,            GADGET_ID_NONE,
2307     -1,
2308     options_change_trigger_player,
2309     &custom_element_change.trigger_player,
2310     "player:", " ",                     "player that causes change"
2311   },
2312   {
2313     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(7),
2314     GADGET_ID_CHANGE_PAGE,              GADGET_ID_CHANGE_PLAYER,
2315     -1,
2316     options_change_trigger_page,
2317     &custom_element_change.trigger_page,
2318     "page:", NULL,                      "change page that causes change"
2319   },
2320   {
2321     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(10),
2322     GADGET_ID_CHANGE_REPLACE_WHEN,      GADGET_ID_NONE,
2323     -1,
2324     options_change_replace_when,
2325     &custom_element_change.replace_when,
2326     "replace when", NULL,               "which elements can be replaced"
2327   },
2328   {
2329     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(13),
2330     GADGET_ID_ACTION_TYPE,              GADGET_ID_NONE,
2331     -1,
2332     options_action_type,
2333     &custom_element_change.action_type,
2334     NULL, NULL,                         "action on specified condition"
2335   },
2336   {
2337     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
2338     GADGET_ID_ACTION_MODE,              GADGET_ID_ACTION_TYPE,
2339     -1,
2340     options_action_mode_none,
2341     &custom_element_change.action_mode,
2342     NULL, NULL,                         "action operator"
2343   },
2344   {
2345     -1,                                 ED_ELEMENT_SETTINGS_YPOS(13),
2346     GADGET_ID_ACTION_ARG,               GADGET_ID_ACTION_MODE,
2347     -1,
2348     options_action_arg_none,
2349     &custom_element_change.action_arg,
2350     NULL, NULL,                         "action parameter"
2351   },
2352   {
2353     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(14),
2354     GADGET_ID_SELECT_CHANGE_PAGE,       GADGET_ID_NONE,
2355     3,
2356     options_change_page,
2357     &custom_element.current_change_page,
2358     NULL, NULL,                         "element change page"
2359   },
2360
2361   /* ---------- element settings: configure (group elements) --------------- */
2362
2363   {
2364     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2365     GADGET_ID_GROUP_CHOICE_MODE,        GADGET_ID_NONE,
2366     -1,
2367     options_group_choice_mode,
2368     &group_element_info.choice_mode,
2369     "choice type:", NULL,               "type of group element choice"
2370   },
2371 };
2372
2373 static struct
2374 {
2375   int x, y;
2376   int gadget_id;
2377   int gadget_id_align;
2378   int size;
2379   char *text;
2380   char *text_left, *text_right, *infotext;
2381 } textbutton_info[ED_NUM_TEXTBUTTONS] =
2382 {
2383   {
2384     ED_LEVEL_SETTINGS_TABS_XPOS(0),     ED_LEVEL_SETTINGS_TABS_YPOS(0),
2385     GADGET_ID_LEVELINFO_LEVEL,          GADGET_ID_NONE,
2386     8,                                  "Level",
2387     NULL, NULL,                         "Configure level properties"
2388   },
2389   {
2390     ED_LEVEL_SETTINGS_TABS_XPOS(1),     ED_LEVEL_SETTINGS_TABS_YPOS(0),
2391     GADGET_ID_LEVELINFO_EDITOR,         GADGET_ID_NONE,
2392     8,                                  "Editor",
2393     NULL, NULL,                         "Configure editor properties"
2394   },
2395   {
2396     ED_ELEMENT_SETTINGS_TABS_XPOS(0),   ED_ELEMENT_SETTINGS_TABS_YPOS(0),
2397     GADGET_ID_PROPERTIES_INFO,          GADGET_ID_NONE,
2398     8,                                  "Info",
2399     NULL, NULL,                         "Show information about element"
2400   },
2401   {
2402     ED_ELEMENT_SETTINGS_TABS_XPOS(1),   ED_ELEMENT_SETTINGS_TABS_YPOS(0),
2403     GADGET_ID_PROPERTIES_CONFIG,        GADGET_ID_NONE,
2404     8,                                  "Config",
2405     NULL, NULL,                         "Configure element properties"
2406   },
2407   {
2408     ED_ELEMENT_SETTINGS_TABS_XPOS(1),   ED_ELEMENT_SETTINGS_TABS_YPOS(0),
2409     GADGET_ID_PROPERTIES_CONFIG_1,      GADGET_ID_NONE,
2410     8,                                  "Config 1",
2411     NULL, NULL,                         "Configure element properties, part 1"
2412   },
2413   {
2414     ED_ELEMENT_SETTINGS_TABS_XPOS(2),   ED_ELEMENT_SETTINGS_TABS_YPOS(0),
2415     GADGET_ID_PROPERTIES_CONFIG_2,      GADGET_ID_NONE,
2416     8,                                  "Config 2",
2417     NULL, NULL,                         "Configure element properties, part 2"
2418   },
2419   {
2420     ED_ELEMENT_SETTINGS_TABS_XPOS(3),   ED_ELEMENT_SETTINGS_TABS_YPOS(0),
2421     GADGET_ID_PROPERTIES_CHANGE,        GADGET_ID_NONE,
2422     8,                                  "Change",
2423     NULL, NULL,                         "Configure custom element change pages"
2424   },
2425   {
2426     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2427     GADGET_ID_SAVE_AS_TEMPLATE,         GADGET_ID_CUSTOM_USE_TEMPLATE,
2428     -1,                                 "Save",
2429     " ", "As Template",                 "Save current settings as new template"
2430   },
2431   {
2432     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2433     GADGET_ID_ADD_CHANGE_PAGE,          GADGET_ID_PASTE_CHANGE_PAGE,
2434     -1,                                 "New",
2435     NULL, NULL,                         "Add new change page"
2436   },
2437   {
2438     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2439     GADGET_ID_DEL_CHANGE_PAGE,          GADGET_ID_ADD_CHANGE_PAGE,
2440     -1,                                 "Delete",
2441     NULL, NULL,                         "Delete current change page"
2442   },
2443 };
2444
2445 static struct
2446 {
2447   int graphic;
2448   int x, y;
2449   int gadget_id;
2450   int gadget_id_align;
2451   char *text_left, *text_right, *infotext;
2452 } graphicbutton_info[ED_NUM_GRAPHICBUTTONS] =
2453 {
2454   {
2455     IMG_EDITOR_COUNTER_DOWN,
2456     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
2457     GADGET_ID_PREV_CHANGE_PAGE,         GADGET_ID_NONE,
2458     NULL, NULL,                         "select previous change page"
2459   },
2460   {
2461     IMG_EDITOR_COUNTER_UP,
2462     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2463     GADGET_ID_NEXT_CHANGE_PAGE,         GADGET_ID_SELECT_CHANGE_PAGE,
2464     NULL, "change page",                "select next change page"
2465   },
2466   {
2467     IMG_EDITOR_BUTTON_GFX_CP_COPY,
2468     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2469     GADGET_ID_COPY_CHANGE_PAGE,         GADGET_ID_NEXT_CHANGE_PAGE,
2470     " ", NULL,                          "copy settings from this change page"
2471   },
2472   {
2473     IMG_EDITOR_BUTTON_GFX_CP_PASTE,
2474     -1,                                 ED_ELEMENT_SETTINGS_YPOS(14),
2475     GADGET_ID_PASTE_CHANGE_PAGE,        GADGET_ID_COPY_CHANGE_PAGE,
2476     NULL, NULL,                         "paste settings to this change page"
2477   },
2478 };
2479
2480 static struct
2481 {
2482   int x, y;
2483 } scrollbutton_pos[ED_NUM_SCROLLBUTTONS];
2484
2485 static struct
2486 {
2487   int graphic;
2488   int gadget_id;
2489   char *infotext;
2490 } scrollbutton_info[ED_NUM_SCROLLBUTTONS] =
2491 {
2492   {
2493     IMG_EDITOR_PLAYFIELD_SCROLL_UP,
2494     GADGET_ID_SCROLL_UP,
2495     "scroll level editing area up"
2496   },
2497   {
2498     IMG_EDITOR_PLAYFIELD_SCROLL_DOWN,
2499     GADGET_ID_SCROLL_DOWN,
2500     "scroll level editing area down"
2501   },
2502   {
2503     IMG_EDITOR_PLAYFIELD_SCROLL_LEFT,
2504     GADGET_ID_SCROLL_LEFT,
2505     "scroll level editing area left"
2506   },
2507   {
2508     IMG_EDITOR_PLAYFIELD_SCROLL_RIGHT,
2509     GADGET_ID_SCROLL_RIGHT,
2510     "scroll level editing area right"
2511   },
2512   {
2513     IMG_EDITOR_PALETTE_SCROLL_UP,
2514     GADGET_ID_SCROLL_LIST_UP,
2515     "scroll element list up ('Page Up')"
2516   },
2517   {
2518     IMG_EDITOR_PALETTE_SCROLL_DOWN,
2519     GADGET_ID_SCROLL_LIST_DOWN,
2520     "scroll element list down ('Page Down')"
2521   },
2522 };
2523
2524 static struct
2525 {
2526   int x, y;
2527   int width, height;
2528   int wheel_x, wheel_y;
2529   int wheel_width, wheel_height;
2530 } scrollbar_pos[ED_NUM_SCROLLBARS];
2531
2532 static struct
2533 {
2534   int graphic;
2535   int type;
2536   int gadget_id;
2537   char *infotext;
2538 } scrollbar_info[ED_NUM_SCROLLBARS] =
2539 {
2540   {
2541     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
2542     GD_TYPE_SCROLLBAR_HORIZONTAL,
2543     GADGET_ID_SCROLL_HORIZONTAL,
2544     "scroll level editing area horizontally"
2545   },
2546   {
2547     IMG_EDITOR_PLAYFIELD_SCROLLBAR,
2548     GD_TYPE_SCROLLBAR_VERTICAL,
2549     GADGET_ID_SCROLL_VERTICAL,
2550     "scroll level editing area vertically"
2551   },
2552   {
2553     IMG_EDITOR_PALETTE_SCROLLBAR,
2554     GD_TYPE_SCROLLBAR_VERTICAL,
2555     GADGET_ID_SCROLL_LIST_VERTICAL,
2556     "scroll element list vertically"
2557   }
2558 };
2559
2560
2561 static struct
2562 {
2563   int x, y;
2564   int gadget_id;
2565   int gadget_id_align;
2566   int radio_button_nr;
2567   int *value;
2568   int checked_value;
2569   char *text_left, *text_right, *infotext;
2570 } radiobutton_info[ED_NUM_RADIOBUTTONS] =
2571 {
2572   {
2573     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
2574     GADGET_ID_RANDOM_PERCENTAGE,        GADGET_ID_LEVEL_RANDOM_UP,
2575     RADIO_NR_RANDOM_ELEMENTS,
2576     &random_placement_method,           RANDOM_USE_PERCENTAGE,
2577     " ", "percentage",                  "use percentage for random elements"
2578   },
2579   {
2580     -1,                                 ED_LEVEL_SETTINGS_YPOS(0),
2581     GADGET_ID_RANDOM_QUANTITY,          GADGET_ID_RANDOM_PERCENTAGE,
2582     RADIO_NR_RANDOM_ELEMENTS,
2583     &random_placement_method,           RANDOM_USE_QUANTITY,
2584     " ", "quantity",                    "use quantity for random elements"
2585   }
2586 };
2587
2588 static struct
2589 {
2590   int x, y;
2591   int gadget_id;
2592   int gadget_id_align;
2593   boolean *value;
2594   char *text_left, *text_right, *infotext;
2595 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
2596 {
2597   /* ---------- level and editor settings ---------------------------------- */
2598
2599   {
2600     ED_LEVEL_SETTINGS_XPOS(0),          ED_LEVEL_SETTINGS_YPOS(1),
2601     GADGET_ID_RANDOM_RESTRICTED,        GADGET_ID_NONE,
2602     &random_placement_background_restricted,
2603     NULL,
2604     "restrict random placement to:",    "set random placement restriction"
2605   },
2606
2607   /* ---------- element settings: configure (various elements) ------------- */
2608
2609   {
2610     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2611     GADGET_ID_STICK_ELEMENT,            GADGET_ID_NONE,
2612     &stick_element_properties_window,
2613     NULL,
2614     "stick this screen to edit content","stick this screen to edit content"
2615   },
2616   {
2617     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2618     GADGET_ID_EM_SLIPPERY_GEMS,         GADGET_ID_NONE,
2619     &level.em_slippery_gems,
2620     NULL,
2621     "slip down from certain flat walls","use EM/DC style slipping behaviour"
2622   },
2623   {
2624     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2625     GADGET_ID_EM_EXPLODES_BY_FIRE,      GADGET_ID_NONE,
2626     &level.em_explodes_by_fire,
2627     NULL,
2628     "explodes with chain reaction",     "use R'n'D style explosion behaviour"
2629   },
2630   {
2631     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
2632     GADGET_ID_USE_SPRING_BUG,           GADGET_ID_NONE,
2633     &level.use_spring_bug,
2634     NULL,
2635     "use spring pushing bug",           "use odd spring pushing behaviour"
2636   },
2637   {
2638     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2639     GADGET_ID_USE_TIME_ORB_BUG,         GADGET_ID_NONE,
2640     &level.use_time_orb_bug,
2641     NULL,
2642     "use time orb bug",                 "use odd time orb behaviour"
2643   },
2644   {
2645     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
2646     GADGET_ID_RANDOM_BALL_CONTENT,      GADGET_ID_NONE,
2647     &level.ball_random,
2648     NULL,
2649     "create single random element",     "only create one element from content"
2650   },
2651   {
2652     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2653     GADGET_ID_INITIAL_BALL_STATE,       GADGET_ID_NONE,
2654     &level.ball_state_initial,
2655     NULL,
2656     "magic ball initially activated",   "activate magic ball after level start"
2657   },
2658   {
2659     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2660     GADGET_ID_GROW_INTO_DIGGABLE,       GADGET_ID_NONE,
2661     &level.grow_into_diggable,
2662     NULL,
2663     "can grow into anything diggable",  "grow into more than just sand"
2664   },
2665   {
2666     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2667     GADGET_ID_AUTO_EXIT_SOKOBAN,        GADGET_ID_NONE,
2668     &level.auto_exit_sokoban,
2669     NULL,
2670     "exit level if all fields solved",  "automatically finish Sokoban levels"
2671   },
2672   {
2673     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
2674     GADGET_ID_CONTINUOUS_SNAPPING,      GADGET_ID_NONE,
2675     &level.continuous_snapping,
2676     NULL,
2677     "continuous snapping",              "use snapping without releasing key"
2678   },
2679   {
2680     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
2681     GADGET_ID_BLOCK_SNAP_FIELD,         GADGET_ID_NONE,
2682     &level.block_snap_field,
2683     NULL,
2684     "block snapped field when snapping", "use snapping delay to show animation"
2685   },
2686   {
2687     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
2688     GADGET_ID_BLOCK_LAST_FIELD,         GADGET_ID_NONE,
2689     &level.block_last_field,
2690     NULL,
2691     "block last field when moving",     "player blocks last field when moving"
2692   },
2693   {
2694     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
2695     GADGET_ID_SP_BLOCK_LAST_FIELD,      GADGET_ID_NONE,
2696     &level.sp_block_last_field,
2697     NULL,
2698     "block last field when moving",     "player blocks last field when moving"
2699   },
2700   {
2701     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(3),
2702     GADGET_ID_INSTANT_RELOCATION,       GADGET_ID_NONE,
2703     &level.instant_relocation,
2704     NULL,
2705     "no scrolling when relocating",     "player gets relocated without delay"
2706   },
2707   {
2708     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2709     GADGET_ID_SHIFTED_RELOCATION,       GADGET_ID_NONE,
2710     &level.shifted_relocation,
2711     NULL,
2712     "no centering when relocating",     "level not centered after relocation"
2713   },
2714   {
2715     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
2716     GADGET_ID_USE_START_ELEMENT,        GADGET_ID_NONE,
2717     &level.use_start_element[0],
2718     NULL,
2719     "use level start element:",        "start level at this element's position"
2720   },
2721   {
2722     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
2723     GADGET_ID_USE_ARTWORK_ELEMENT,      GADGET_ID_NONE,
2724     &level.use_artwork_element[0],
2725     NULL,
2726     "use artwork from element:",        "use player artwork from other element"
2727   },
2728   {
2729     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
2730     GADGET_ID_USE_EXPLOSION_ELEMENT,    GADGET_ID_NONE,
2731     &level.use_explosion_element[0],
2732     NULL,
2733     "use explosion from element:",      "use explosion properties from element"
2734   },
2735   {
2736     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(12),
2737     GADGET_ID_INITIAL_GRAVITY,          GADGET_ID_NONE,
2738     &level.initial_player_gravity[0],
2739     NULL,
2740     "use initial gravity",              "set initial player gravity"
2741   },
2742   {
2743     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2744     GADGET_ID_USE_INITIAL_INVENTORY,    GADGET_ID_NONE,
2745     &level.use_initial_inventory[0],
2746     NULL,
2747     "use initial inventory:",           "use collected elements on level start"
2748   },
2749   {
2750     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(5),
2751     GADGET_ID_CAN_PASS_TO_WALKABLE,     GADGET_ID_NONE,
2752     &level.can_pass_to_walkable,
2753     NULL,
2754     "can pass to walkable element",     "player can pass to empty or walkable"
2755   },
2756   {
2757     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2758     GADGET_ID_CAN_FALL_INTO_ACID,       GADGET_ID_NONE,
2759     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
2760     NULL,
2761     "can fall into acid (with gravity)","player can fall into acid pool"
2762   },
2763   {
2764     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(0),
2765     GADGET_ID_CAN_MOVE_INTO_ACID,       GADGET_ID_NONE,
2766     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
2767     NULL,
2768     "can move into acid",               "element can move into acid pool"
2769   },
2770   {
2771     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2772     GADGET_ID_DONT_COLLIDE_WITH,        GADGET_ID_NONE,
2773     &custom_element_properties[EP_DONT_COLLIDE_WITH],
2774     NULL,
2775     "deadly when colliding with",       "element is deadly when hitting player"
2776   },
2777   {
2778     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2779     GADGET_ID_ENVELOPE_AUTOWRAP,        GADGET_ID_NONE,
2780     &level.envelope[0].autowrap,
2781     NULL,
2782     "auto-wrap",                        "automatically wrap envelope text"
2783   },
2784   {
2785     -1,                                 ED_ELEMENT_SETTINGS_YPOS(1),
2786     GADGET_ID_ENVELOPE_CENTERED,        GADGET_ID_ENVELOPE_AUTOWRAP,
2787     &level.envelope[0].centered,
2788     " ",
2789     "centered",                         "automatically center envelope text"
2790   },
2791
2792   /* ---------- element settings: configure 1 (custom elements) ----------- */
2793
2794   {
2795     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2796     GADGET_ID_CUSTOM_USE_GRAPHIC,       GADGET_ID_NONE,
2797     &custom_element.use_gfx_element,
2798     NULL,
2799     "use graphic of element:",          "use existing element graphic"
2800   },
2801   {
2802     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(14),
2803     GADGET_ID_CUSTOM_USE_TEMPLATE,      GADGET_ID_NONE,
2804     &level.use_custom_template,
2805     NULL,
2806     "use template",                     "use template for custom properties"
2807   },
2808   {
2809     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(2),
2810     GADGET_ID_CUSTOM_ACCESSIBLE,        GADGET_ID_NONE,
2811     &custom_element_properties[EP_ACCESSIBLE],
2812     NULL,
2813     NULL,                               "player can walk to or pass this field"
2814   },
2815   {
2816     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
2817     GADGET_ID_CUSTOM_GRAV_REACHABLE,    GADGET_ID_NONE,
2818     &custom_element_properties[EP_GRAVITY_REACHABLE],
2819     NULL,
2820     "reachable despite gravity",        "player can walk/dig despite gravity"
2821   },
2822   {
2823     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(11),
2824     GADGET_ID_CUSTOM_USE_LAST_VALUE,    GADGET_ID_NONE,
2825     &custom_element.use_last_ce_value,
2826     NULL,
2827     "use last CE value after change",   "use last CE value after change"
2828   },
2829   {
2830     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(4),
2831     GADGET_ID_CUSTOM_WALK_TO_OBJECT,    GADGET_ID_NONE,
2832     &custom_element_properties[EP_WALK_TO_OBJECT],
2833     NULL,
2834     NULL,                               "player can dig/collect/push element"
2835   },
2836   {
2837     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
2838     GADGET_ID_CUSTOM_INDESTRUCTIBLE,    GADGET_ID_NONE,
2839     &custom_element_properties[EP_INDESTRUCTIBLE],
2840     NULL,
2841     "indestructible",                   "element is indestructible"
2842   },
2843
2844   /* ---------- element settings: configure 2 (custom elements) ----------- */
2845
2846   {
2847     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2848     GADGET_ID_CUSTOM_CAN_MOVE,          GADGET_ID_NONE,
2849     &custom_element_properties[EP_CAN_MOVE],
2850     NULL,
2851     NULL,                               "element can move with some pattern"
2852   },
2853   {
2854     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(7),
2855     GADGET_ID_CUSTOM_CAN_FALL,          GADGET_ID_NONE,
2856     &custom_element_properties[EP_CAN_FALL],
2857     NULL,
2858     "can fall",                         "element can fall down"
2859   },
2860   {
2861     -1,                                 ED_ELEMENT_SETTINGS_YPOS(7),
2862     GADGET_ID_CUSTOM_CAN_SMASH,         GADGET_ID_CUSTOM_CAN_FALL,
2863     &custom_element_properties[EP_CAN_SMASH],
2864     " ",
2865     NULL,                               "element can smash other elements"
2866   },
2867   {
2868     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(8),
2869     GADGET_ID_CUSTOM_SLIPPERY,          GADGET_ID_NONE,
2870     &custom_element_properties[EP_SLIPPERY],
2871     NULL,
2872     NULL,                               "other elements can fall down from it"
2873   },
2874   {
2875     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(9),
2876     GADGET_ID_CUSTOM_DEADLY,            GADGET_ID_NONE,
2877     &custom_element_properties[EP_DEADLY],
2878     NULL,
2879     NULL,                               "element can kill the player"
2880   },
2881   {
2882     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(10),
2883     GADGET_ID_CUSTOM_CAN_EXPLODE,       GADGET_ID_NONE,
2884     &custom_element_properties[EP_CAN_EXPLODE],
2885     NULL,
2886     NULL,                               "element can explode"
2887   },
2888   {
2889     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(11),
2890     GADGET_ID_CUSTOM_EXPLODE_FIRE,      GADGET_ID_NONE,
2891     &custom_element_properties[EP_EXPLODES_BY_FIRE],
2892     NULL,
2893     "by fire",                          "element can explode by fire/explosion"
2894   },
2895   {
2896     -1,                                 ED_ELEMENT_SETTINGS_YPOS(11),
2897     GADGET_ID_CUSTOM_EXPLODE_SMASH,     GADGET_ID_CUSTOM_EXPLODE_FIRE,
2898     &custom_element_properties[EP_EXPLODES_SMASHED],
2899     " ",
2900     "smashed",                          "element can explode when smashed"
2901   },
2902   {
2903     -1,                                 ED_ELEMENT_SETTINGS_YPOS(11),
2904     GADGET_ID_CUSTOM_EXPLODE_IMPACT,    GADGET_ID_CUSTOM_EXPLODE_SMASH,
2905     &custom_element_properties[EP_EXPLODES_IMPACT],
2906     " ",
2907     "impact",                           "element can explode on impact"
2908   },
2909
2910   /* ---------- element settings: advanced (custom elements) --------------- */
2911
2912   {
2913     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(1),
2914     GADGET_ID_CUSTOM_CAN_CHANGE,        GADGET_ID_NONE,
2915     &custom_element_change.can_change,
2916     NULL,
2917     "element changes to:",              "change element on specified condition"
2918   },
2919   {
2920     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(2),
2921     GADGET_ID_CHANGE_DELAY,             GADGET_ID_NONE,
2922     &custom_element_change_events[CE_DELAY],
2923     NULL,
2924     NULL,                               "element changes after delay"
2925   },
2926   {
2927     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(4),
2928     GADGET_ID_CHANGE_BY_DIRECT_ACT,     GADGET_ID_NONE,
2929     &custom_element_change_events[CE_BY_DIRECT_ACTION],
2930     NULL,
2931     NULL,                               "element changes by direct action"
2932   },
2933   {
2934     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(5),
2935     GADGET_ID_CHANGE_BY_OTHER_ACT,      GADGET_ID_NONE,
2936     &custom_element_change_events[CE_BY_OTHER_ACTION],
2937     NULL,
2938     NULL,                               "element changes by other element"
2939   },
2940   {
2941     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(8),
2942     GADGET_ID_CHANGE_USE_EXPLOSION,     GADGET_ID_NONE,
2943     &custom_element_change.explode,
2944     NULL,
2945     "explode instead of change",        "element explodes instead of change"
2946   },
2947   {
2948     ED_ELEMENT_SETTINGS_XPOS(1),        ED_ELEMENT_SETTINGS_YPOS(9),
2949     GADGET_ID_CHANGE_USE_CONTENT,       GADGET_ID_NONE,
2950     &custom_element_change.use_target_content,
2951     NULL,
2952     "use extended change target:",      "element changes to more elements"
2953   },
2954   {
2955     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(11),
2956     GADGET_ID_CHANGE_ONLY_COMPLETE,     GADGET_ID_NONE,
2957     &custom_element_change.only_if_complete,
2958     NULL,
2959     "replace all or nothing",           "only replace when all can be changed"
2960   },
2961   {
2962     ED_ELEMENT_SETTINGS_XPOS(2),        ED_ELEMENT_SETTINGS_YPOS(12),
2963     GADGET_ID_CHANGE_USE_RANDOM,        GADGET_ID_NONE,
2964     &custom_element_change.use_random_replace,
2965     NULL,
2966     NULL,                               "use percentage for random replace"
2967   },
2968   {
2969     ED_ELEMENT_SETTINGS_XPOS(0),        ED_ELEMENT_SETTINGS_YPOS(13),
2970     GADGET_ID_CHANGE_HAS_ACTION,        GADGET_ID_NONE,
2971     &custom_element_change.has_action,
2972     NULL,
2973     NULL,                               "execute action on specified condition"
2974   },
2975 };
2976
2977 static struct
2978 {
2979   int x, y;
2980   int gadget_id;
2981   int gadget_id_align;
2982   int *value;
2983   int area_xsize, area_ysize;
2984   char *text_left, *text_right, *text_below, *infotext;
2985 } drawingarea_info[ED_NUM_DRAWING_AREAS] =
2986 {
2987   /* ---------- level playfield content ------------------------------------ */
2988
2989   {
2990     0,                                  0,
2991     GADGET_ID_DRAWING_LEVEL,            GADGET_ID_NONE,
2992     NULL,
2993     -1, -1,     /* these values are not constant, but can change at runtime */
2994     NULL, NULL, NULL,                   NULL
2995   },
2996
2997   /* ---------- yam yam content -------------------------------------------- */
2998
2999   {
3000     ED_AREA_YAMYAM_CONTENT_XPOS(0),     ED_AREA_YAMYAM_CONTENT_YPOS(0),
3001     GADGET_ID_YAMYAM_CONTENT_0,         GADGET_ID_NONE,
3002     &level.yamyam_content[0].e[0][0],   3, 3,
3003     NULL, NULL, "1",                    NULL
3004   },
3005   {
3006     ED_AREA_YAMYAM_CONTENT_XPOS(1),     ED_AREA_YAMYAM_CONTENT_YPOS(1),
3007     GADGET_ID_YAMYAM_CONTENT_1,         GADGET_ID_NONE,
3008     &level.yamyam_content[1].e[0][0],   3, 3,
3009     NULL, NULL, "2",                    NULL
3010   },
3011   {
3012     ED_AREA_YAMYAM_CONTENT_XPOS(2),     ED_AREA_YAMYAM_CONTENT_YPOS(2),
3013     GADGET_ID_YAMYAM_CONTENT_2,         GADGET_ID_NONE,
3014     &level.yamyam_content[2].e[0][0],   3, 3,
3015     NULL, NULL, "3",                    NULL
3016   },
3017   {
3018     ED_AREA_YAMYAM_CONTENT_XPOS(3),     ED_AREA_YAMYAM_CONTENT_YPOS(3),
3019     GADGET_ID_YAMYAM_CONTENT_3,         GADGET_ID_NONE,
3020     &level.yamyam_content[3].e[0][0],   3, 3,
3021     NULL, NULL, "4",                    NULL
3022   },
3023   {
3024     ED_AREA_YAMYAM_CONTENT_XPOS(4),     ED_AREA_YAMYAM_CONTENT_YPOS(4),
3025     GADGET_ID_YAMYAM_CONTENT_4,         GADGET_ID_NONE,
3026     &level.yamyam_content[4].e[0][0],   3, 3,
3027     NULL, NULL, "5",                    NULL
3028   },
3029   {
3030     ED_AREA_YAMYAM_CONTENT_XPOS(5),     ED_AREA_YAMYAM_CONTENT_YPOS(5),
3031     GADGET_ID_YAMYAM_CONTENT_5,         GADGET_ID_NONE,
3032     &level.yamyam_content[5].e[0][0],   3, 3,
3033     NULL, NULL, "6",                    NULL
3034   },
3035   {
3036     ED_AREA_YAMYAM_CONTENT_XPOS(6),     ED_AREA_YAMYAM_CONTENT_YPOS(6),
3037     GADGET_ID_YAMYAM_CONTENT_6,         GADGET_ID_NONE,
3038     &level.yamyam_content[6].e[0][0],   3, 3,
3039     NULL, NULL, "7",                    NULL
3040   },
3041   {
3042     ED_AREA_YAMYAM_CONTENT_XPOS(7),     ED_AREA_YAMYAM_CONTENT_YPOS(7),
3043     GADGET_ID_YAMYAM_CONTENT_7,         GADGET_ID_NONE,
3044     &level.yamyam_content[7].e[0][0],   3, 3,
3045     NULL, NULL, "8",                    NULL
3046   },
3047
3048   /* ---------- magic ball content ----------------------------------------- */
3049
3050   {
3051     ED_AREA_MAGIC_BALL_CONTENT_XPOS(0), ED_AREA_MAGIC_BALL_CONTENT_YPOS(0),
3052     GADGET_ID_MAGIC_BALL_CONTENT_0,     GADGET_ID_NONE,
3053     &level.ball_content[0].e[0][0],     3, 3,
3054     NULL, NULL, "1",                    NULL
3055   },
3056   {
3057     ED_AREA_MAGIC_BALL_CONTENT_XPOS(1), ED_AREA_MAGIC_BALL_CONTENT_YPOS(1),
3058     GADGET_ID_MAGIC_BALL_CONTENT_1,     GADGET_ID_NONE,
3059     &level.ball_content[1].e[0][0],     3, 3,
3060     NULL, NULL, "2",                    NULL
3061   },
3062   {
3063     ED_AREA_MAGIC_BALL_CONTENT_XPOS(2), ED_AREA_MAGIC_BALL_CONTENT_YPOS(2),
3064     GADGET_ID_MAGIC_BALL_CONTENT_2,     GADGET_ID_NONE,
3065     &level.ball_content[2].e[0][0],     3, 3,
3066     NULL, NULL, "3",                    NULL
3067   },
3068   {
3069     ED_AREA_MAGIC_BALL_CONTENT_XPOS(3), ED_AREA_MAGIC_BALL_CONTENT_YPOS(3),
3070     GADGET_ID_MAGIC_BALL_CONTENT_3,     GADGET_ID_NONE,
3071     &level.ball_content[3].e[0][0],     3, 3,
3072     NULL, NULL, "4",                    NULL
3073   },
3074   {
3075     ED_AREA_MAGIC_BALL_CONTENT_XPOS(4), ED_AREA_MAGIC_BALL_CONTENT_YPOS(4),
3076     GADGET_ID_MAGIC_BALL_CONTENT_4,     GADGET_ID_NONE,
3077     &level.ball_content[4].e[0][0],     3, 3,
3078     NULL, NULL, "5",                    NULL
3079   },
3080   {
3081     ED_AREA_MAGIC_BALL_CONTENT_XPOS(5), ED_AREA_MAGIC_BALL_CONTENT_YPOS(5),
3082     GADGET_ID_MAGIC_BALL_CONTENT_5,     GADGET_ID_NONE,
3083     &level.ball_content[5].e[0][0],     3, 3,
3084     NULL, NULL, "6",                    NULL
3085   },
3086   {
3087     ED_AREA_MAGIC_BALL_CONTENT_XPOS(6), ED_AREA_MAGIC_BALL_CONTENT_YPOS(6),
3088     GADGET_ID_MAGIC_BALL_CONTENT_6,     GADGET_ID_NONE,
3089     &level.ball_content[6].e[0][0],     3, 3,
3090     NULL, NULL, "7",                    NULL
3091   },
3092   {
3093     ED_AREA_MAGIC_BALL_CONTENT_XPOS(7), ED_AREA_MAGIC_BALL_CONTENT_YPOS(7),
3094     GADGET_ID_MAGIC_BALL_CONTENT_7,     GADGET_ID_NONE,
3095     &level.ball_content[7].e[0][0],     3, 3,
3096     NULL, NULL, "8",                    NULL
3097   },
3098
3099   /* ---------- android content -------------------------------------------- */
3100
3101   {
3102     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(5),
3103     GADGET_ID_ANDROID_CONTENT,          GADGET_ID_NONE,
3104     &level.android_clone_element[0],    MAX_ANDROID_ELEMENTS, 1,
3105     "elements:", NULL, NULL,            "elements android can clone"
3106   },
3107
3108   /* ---------- amoeba content --------------------------------------------- */
3109
3110   {
3111     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(3),
3112     GADGET_ID_AMOEBA_CONTENT,           GADGET_ID_NONE,
3113     &level.amoeba_content,              1, 1,
3114     "content:", NULL, NULL,             "amoeba content"
3115   },
3116
3117   /* ---------- level start element ---------------------------------------- */
3118
3119   {
3120     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(9),
3121     GADGET_ID_START_ELEMENT,            GADGET_ID_USE_START_ELEMENT,
3122     &level.start_element[0],            1, 1,
3123     NULL, NULL, NULL,                   "level start element"
3124   },
3125
3126   /* ---------- player artwork element ------------------------------------- */
3127
3128   {
3129     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(10),
3130     GADGET_ID_ARTWORK_ELEMENT,          GADGET_ID_USE_ARTWORK_ELEMENT,
3131     &level.artwork_element[0],          1, 1,
3132     NULL, NULL, NULL,                   "element for player artwork"
3133   },
3134
3135   /* ---------- player explosion element ----------------------------------- */
3136
3137   {
3138     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(11),
3139     GADGET_ID_EXPLOSION_ELEMENT,        GADGET_ID_USE_EXPLOSION_ELEMENT,
3140     &level.explosion_element[0],        1, 1,
3141     NULL, NULL, NULL,                   "element for player explosion"
3142   },
3143
3144   /* ---------- player initial inventory ----------------------------------- */
3145
3146   {
3147     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3148     GADGET_ID_INVENTORY_CONTENT,        GADGET_ID_USE_INITIAL_INVENTORY,
3149     &level.initial_inventory_content[0][0], MAX_INITIAL_INVENTORY_SIZE, 1,
3150     NULL, NULL, NULL,                   "content for initial inventory"
3151   },
3152
3153   /* ---------- element settings: configure 1 (custom elements) ----------- */
3154
3155   /* ---------- custom graphic --------------------------------------------- */
3156
3157   {
3158     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3159     GADGET_ID_CUSTOM_GRAPHIC,           GADGET_ID_CUSTOM_USE_GRAPHIC,
3160     &custom_element.gfx_element_initial,1, 1,
3161     NULL, NULL, NULL,                   "custom graphic element"
3162   },
3163
3164   /* ---------- element settings: configure 2 (custom elements) ----------- */
3165
3166   /* ---------- custom content (when exploding) ---------------------------- */
3167
3168   {
3169     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(10),
3170     GADGET_ID_CUSTOM_CONTENT,           GADGET_ID_NONE, /* align three rows */
3171     &custom_element.content.e[0][0],    3, 3,
3172     "content:", NULL, NULL,             NULL
3173   },
3174
3175   /* ---------- custom enter and leave element (when moving) --------------- */
3176
3177   {
3178     ED_AREA_1X1_SETTINGS_XPOS(1),       ED_AREA_1X1_SETTINGS_YPOS(3),
3179     GADGET_ID_CUSTOM_MOVE_ENTER,        GADGET_ID_NONE,
3180     &custom_element.move_enter_element, 1, 1,
3181     "can dig:", " ", NULL,              "element that can be digged/collected"
3182   },
3183   {
3184     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(3),
3185     GADGET_ID_CUSTOM_MOVE_LEAVE,        GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,
3186     &custom_element.move_leave_element, 1, 1,
3187     NULL, NULL, NULL,                   "element that will be left behind"
3188   },
3189
3190   /* ---------- element settings: advanced (custom elements) --------------- */
3191
3192   /* ---------- custom change target --------------------------------------- */
3193
3194   {
3195     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(1),
3196     GADGET_ID_CUSTOM_CHANGE_TARGET,     GADGET_ID_CUSTOM_CAN_CHANGE,
3197     &custom_element_change.target_element, 1, 1,
3198     NULL, "after/when:", NULL,          "new target element after change"
3199   },
3200
3201   /* ---------- custom change content (extended change target) ------------- */
3202
3203   {
3204     -1,                                 ED_AREA_3X3_SETTINGS_YPOS(9),
3205     GADGET_ID_CUSTOM_CHANGE_CONTENT,    GADGET_ID_NONE, /* align three rows */
3206     &custom_element_change.target_content.e[0][0], 3, 3,
3207     NULL, NULL, NULL,                   "new extended elements after change"
3208   },
3209
3210   /* ---------- custom change trigger (element causing change) ------------- */
3211
3212   {
3213     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(5),
3214     GADGET_ID_CUSTOM_CHANGE_TRIGGER,    GADGET_ID_CHANGE_OTHER_ACTION,
3215     &custom_element_change.initial_trigger_element, 1, 1,
3216     NULL, NULL, NULL,                   "other element triggering change"
3217   },
3218
3219   /* ---------- custom change action (element used for action) ------------- */
3220
3221   {
3222     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(13),
3223     GADGET_ID_CUSTOM_CHANGE_ACTION,     GADGET_ID_ACTION_ARG,
3224     &custom_element_change.action_element, 1, 1,
3225     NULL, NULL, NULL,                   "element used as action parameter"
3226   },
3227
3228   /* ---------- group element content -------------------------------------- */
3229
3230   {
3231     ED_AREA_1X1_SETTINGS_XPOS(0),       ED_AREA_1X1_SETTINGS_YPOS(2),
3232     GADGET_ID_GROUP_CONTENT,            GADGET_ID_NONE,
3233     &group_element_info.element[0],     MAX_ELEMENTS_IN_GROUP, 1,
3234     "content:", NULL, NULL,             NULL
3235   },
3236
3237   /* ---------- random background (for random painting) -------------------- */
3238
3239   {
3240     -1,                                 ED_AREA_1X1_SETTINGS_YPOS(-1),
3241     GADGET_ID_RANDOM_BACKGROUND,        GADGET_ID_RANDOM_RESTRICTED,
3242     &random_placement_background_element, 1, 1,
3243     NULL, NULL, NULL,                   "random placement background"
3244   },
3245 };
3246
3247
3248 /*
3249   -----------------------------------------------------------------------------
3250   some internally used variables
3251   -----------------------------------------------------------------------------
3252 */
3253
3254 /* maximal size of level editor drawing area */
3255 static int MAX_ED_FIELDX, MAX_ED_FIELDY;
3256
3257 /* actual size of level editor drawing area */
3258 static int ed_fieldx, ed_fieldy;
3259
3260 /* actual position of level editor drawing area in level playfield */
3261 static int level_xpos = -1, level_ypos = -1;
3262
3263 /* actual tile size used to display level editor playfield */
3264 static int ed_tilesize = DEFAULT_EDITOR_TILESIZE;
3265
3266 #define IN_ED_FIELD(x,y)        IN_FIELD(x, y, ed_fieldx, ed_fieldy)
3267
3268 /* drawing elements on the three mouse buttons */
3269 static int new_element1 = EL_WALL;
3270 static int new_element2 = EL_EMPTY;
3271 static int new_element3 = EL_SAND;
3272
3273 #define IS_VALID_BUTTON(button) (button >= 1 && button <= 3)
3274 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
3275                                 (button) == 2 ? new_element2 : \
3276                                 (button) == 3 ? new_element3 : EL_EMPTY)
3277 #define BUTTON_STEPSIZE(button) ((button) == 1 ?  1 : \
3278                                  (button) == 2 ?  5 : \
3279                                  (button) == 3 ? 10 : \
3280                                  (button))
3281
3282 /* forward declaration for internal use */
3283 static void ModifyEditorCounterValue(int, int);
3284 static void ModifyEditorCounterLimits(int, int, int);
3285 static void ModifyEditorSelectboxValue(int, int);
3286 static void ModifyEditorSelectboxOptions(int, struct ValueTextInfo *);
3287 static void ModifyEditorDrawingArea(int, int, int);
3288 static void ModifyEditorElementList();
3289 static void AdjustElementListScrollbar();
3290 static void RedrawDrawingElements();
3291 static void DrawDrawingWindow();
3292 static void DrawLevelInfoWindow();
3293 static void DrawPropertiesWindow();
3294 static void UpdateCustomElementGraphicGadgets();
3295 static boolean checkPropertiesConfig(int);
3296 static void CopyLevelToUndoBuffer(int);
3297 static void HandleDrawingAreas(struct GadgetInfo *);
3298 static void HandleCounterButtons(struct GadgetInfo *);
3299 static void HandleTextInputGadgets(struct GadgetInfo *);
3300 static void HandleTextAreaGadgets(struct GadgetInfo *);
3301 static void HandleSelectboxGadgets(struct GadgetInfo *);
3302 static void HandleTextbuttonGadgets(struct GadgetInfo *);
3303 static void HandleGraphicbuttonGadgets(struct GadgetInfo *);
3304 static void HandleRadiobuttons(struct GadgetInfo *);
3305 static void HandleCheckbuttons(struct GadgetInfo *);
3306 static void HandleControlButtons(struct GadgetInfo *);
3307 static void HandleDrawingAreaInfo(struct GadgetInfo *);
3308 static void PrintEditorGadgetInfoText(struct GadgetInfo *);
3309
3310 static int num_editor_gadgets = 0;      /* dynamically determined */
3311
3312 static struct GadgetInfo **level_editor_gadget = NULL;
3313 static int *right_gadget_border = NULL;
3314
3315 static int drawing_function = GADGET_ID_SINGLE_ITEMS;
3316 static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
3317 static boolean draw_with_brush = FALSE;
3318 static int properties_element = 0;
3319
3320 static short FieldBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3321 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3322 static short IntelliDrawBuffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
3323 static int undo_buffer_position = 0;
3324 static int undo_buffer_steps = 0;
3325 static int redo_buffer_steps = 0;
3326
3327 static int edit_mode;
3328 static int edit_mode_levelinfo;
3329 static int edit_mode_properties;
3330
3331 static int element_shift = 0;
3332
3333 static int editor_el_players[] =
3334 {
3335   EL_PLAYER_1,
3336   EL_PLAYER_2,
3337   EL_PLAYER_3,
3338   EL_PLAYER_4
3339 };
3340 static int *editor_el_players_ptr = editor_el_players;
3341 static int num_editor_el_players = SIZEOF_ARRAY_INT(editor_el_players);
3342
3343 static int editor_hl_boulderdash[] =
3344 {
3345   EL_INTERNAL_CASCADE_BD_ACTIVE,
3346   EL_CHAR('B'),
3347   EL_CHAR('D'),
3348   EL_EMPTY,
3349 };
3350
3351 static int editor_el_boulderdash[] =
3352 {
3353   EL_EMPTY,
3354   EL_SAND,
3355   EL_BD_ROCK,
3356   EL_BD_DIAMOND,
3357
3358   EL_STEELWALL,
3359   EL_BD_WALL,
3360   EL_BD_EXPANDABLE_WALL,
3361   EL_BD_MAGIC_WALL,
3362
3363   EL_BD_AMOEBA,
3364   EL_BD_BUTTERFLY_UP,
3365   EL_BD_FIREFLY_UP,
3366   EL_EXIT_CLOSED,
3367
3368   EL_BD_BUTTERFLY_LEFT,
3369   EL_BD_FIREFLY_LEFT,
3370   EL_BD_BUTTERFLY_RIGHT,
3371   EL_BD_FIREFLY_RIGHT,
3372
3373   EL_EMPTY,
3374   EL_BD_BUTTERFLY_DOWN,
3375   EL_BD_FIREFLY_DOWN,
3376   EL_EXIT_OPEN,
3377 };
3378 static int *editor_hl_boulderdash_ptr = editor_hl_boulderdash;
3379 static int *editor_el_boulderdash_ptr = editor_el_boulderdash;
3380 static int num_editor_hl_boulderdash = SIZEOF_ARRAY_INT(editor_hl_boulderdash);
3381 static int num_editor_el_boulderdash = SIZEOF_ARRAY_INT(editor_el_boulderdash);
3382
3383 static int editor_hl_emerald_mine[] =
3384 {
3385   EL_INTERNAL_CASCADE_EM_ACTIVE,
3386   EL_CHAR('E'),
3387   EL_CHAR('M'),
3388   EL_EMPTY,
3389 };
3390
3391 static int editor_el_emerald_mine[] =
3392 {
3393   EL_SAND,
3394   EL_ROCK,
3395   EL_QUICKSAND_EMPTY,
3396   EL_QUICKSAND_FULL,
3397
3398   EL_STEELWALL,
3399   EL_WALL,
3400   EL_WALL_SLIPPERY,
3401   EL_MAGIC_WALL,
3402
3403   EL_EMERALD,
3404   EL_DIAMOND,
3405   EL_NUT,
3406   EL_BOMB,
3407
3408   EL_WALL_EMERALD,
3409   EL_WALL_DIAMOND,
3410   EL_DYNAMITE,
3411   EL_DYNAMITE_ACTIVE,
3412
3413   EL_YAMYAM,
3414   EL_BUG_UP,
3415   EL_SPACESHIP_UP,
3416   EL_ROBOT,
3417
3418   EL_BUG_LEFT,
3419   EL_SPACESHIP_LEFT,
3420   EL_BUG_RIGHT,
3421   EL_SPACESHIP_RIGHT,
3422
3423   EL_ROBOT_WHEEL,
3424   EL_BUG_DOWN,
3425   EL_SPACESHIP_DOWN,
3426   EL_INVISIBLE_WALL,
3427
3428   EL_ACID_POOL_TOPLEFT,
3429   EL_ACID,
3430   EL_ACID_POOL_TOPRIGHT,
3431   EL_AMOEBA_DROP,
3432
3433   EL_ACID_POOL_BOTTOMLEFT,
3434   EL_ACID_POOL_BOTTOM,
3435   EL_ACID_POOL_BOTTOMRIGHT,
3436   EL_AMOEBA_WET,
3437
3438   EL_EM_KEY_1,
3439   EL_EM_KEY_2,
3440   EL_EM_KEY_3,
3441   EL_EM_KEY_4,
3442
3443   EL_EM_GATE_1,
3444   EL_EM_GATE_2,
3445   EL_EM_GATE_3,
3446   EL_EM_GATE_4,
3447
3448   EL_EM_GATE_1_GRAY,
3449   EL_EM_GATE_2_GRAY,
3450   EL_EM_GATE_3_GRAY,
3451   EL_EM_GATE_4_GRAY,
3452
3453   EL_EM_EXIT_CLOSED,
3454   EL_EM_EXIT_OPEN,
3455   EL_EM_STEEL_EXIT_CLOSED,
3456   EL_EM_STEEL_EXIT_OPEN,
3457 };
3458 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
3459 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
3460 static int num_editor_hl_emerald_mine=SIZEOF_ARRAY_INT(editor_hl_emerald_mine);
3461 static int num_editor_el_emerald_mine=SIZEOF_ARRAY_INT(editor_el_emerald_mine);
3462
3463 static int editor_hl_emerald_mine_club[] =
3464 {
3465   EL_INTERNAL_CASCADE_EMC_ACTIVE,
3466   EL_CHAR('E'),
3467   EL_CHAR('M'),
3468   EL_CHAR('C'),
3469 };
3470
3471 static int editor_el_emerald_mine_club[] =
3472 {
3473   EL_EMC_KEY_5,
3474   EL_EMC_KEY_6,
3475   EL_EMC_KEY_7,
3476   EL_EMC_KEY_8,
3477
3478   EL_EMC_GATE_5,
3479   EL_EMC_GATE_6,
3480   EL_EMC_GATE_7,
3481   EL_EMC_GATE_8,
3482
3483   EL_EMC_GATE_5_GRAY,
3484   EL_EMC_GATE_6_GRAY,
3485   EL_EMC_GATE_7_GRAY,
3486   EL_EMC_GATE_8_GRAY,
3487
3488   EL_EMC_STEELWALL_1,
3489   EL_EMC_STEELWALL_2,
3490   EL_EMC_STEELWALL_3,
3491   EL_EMC_STEELWALL_4,
3492
3493   EL_EMC_WALL_13,
3494   EL_EMC_WALL_14,
3495   EL_EMC_WALL_15,
3496   EL_EMC_WALL_16,
3497
3498   EL_EMC_WALL_SLIPPERY_1,
3499   EL_EMC_WALL_SLIPPERY_2,
3500   EL_EMC_WALL_SLIPPERY_3,
3501   EL_EMC_WALL_SLIPPERY_4,
3502
3503   EL_EMC_WALL_1,
3504   EL_EMC_WALL_2,
3505   EL_EMC_WALL_3,
3506   EL_EMC_WALL_4,
3507
3508   EL_EMC_WALL_5,
3509   EL_EMC_WALL_6,
3510   EL_EMC_WALL_7,
3511   EL_EMC_WALL_8,
3512
3513   EL_EMC_WALL_9,
3514   EL_EMC_WALL_10,
3515   EL_EMC_WALL_11,
3516   EL_EMC_WALL_12,
3517
3518   EL_EMC_GRASS,
3519   EL_EMC_FAKE_GRASS,
3520   EL_EMC_PLANT,
3521   EL_EMC_DRIPPER,
3522
3523   EL_EMC_MAGIC_BALL,
3524   EL_EMC_MAGIC_BALL_SWITCH,
3525   EL_SPRING,
3526   EL_EMC_SPRING_BUMPER,
3527
3528   EL_EMC_LENSES,
3529   EL_EMC_MAGNIFIER,
3530   EL_EM_DYNAMITE,
3531   EL_EM_DYNAMITE_ACTIVE,
3532
3533   EL_BALLOON,
3534   EL_YAMYAM_UP,
3535   EL_BALLOON_SWITCH_UP,
3536   EL_BALLOON_SWITCH_ANY,
3537
3538   EL_YAMYAM_LEFT,
3539   EL_BALLOON_SWITCH_LEFT,
3540   EL_YAMYAM_RIGHT,
3541   EL_BALLOON_SWITCH_RIGHT,
3542
3543   EL_EMC_ANDROID,
3544   EL_YAMYAM_DOWN,
3545   EL_BALLOON_SWITCH_DOWN,
3546   EL_BALLOON_SWITCH_NONE,
3547 };
3548 static int *editor_hl_emerald_mine_club_ptr = editor_hl_emerald_mine_club;
3549 static int *editor_el_emerald_mine_club_ptr = editor_el_emerald_mine_club;
3550 static int num_editor_hl_emerald_mine_club=SIZEOF_ARRAY_INT(editor_hl_emerald_mine_club);
3551 static int num_editor_el_emerald_mine_club=SIZEOF_ARRAY_INT(editor_el_emerald_mine_club);
3552
3553 static int editor_hl_rnd[] =
3554 {
3555   EL_INTERNAL_CASCADE_RND_ACTIVE,
3556   EL_CHAR('R'),
3557   EL_CHAR('N'),
3558   EL_CHAR('D'),
3559 };
3560
3561 static int editor_el_rnd[] =
3562 {
3563   EL_KEY_1,
3564   EL_KEY_2,
3565   EL_KEY_3,
3566   EL_KEY_4,
3567
3568   EL_GATE_1,
3569   EL_GATE_2,
3570   EL_GATE_3,
3571   EL_GATE_4,
3572
3573   EL_GATE_1_GRAY,
3574   EL_GATE_2_GRAY,
3575   EL_GATE_3_GRAY,
3576   EL_GATE_4_GRAY,
3577
3578   EL_ARROW_LEFT,
3579   EL_ARROW_RIGHT,
3580   EL_ARROW_UP,
3581   EL_ARROW_DOWN,
3582
3583   EL_AMOEBA_DEAD,
3584   EL_AMOEBA_DRY,
3585   EL_AMOEBA_FULL,
3586   EL_GAME_OF_LIFE,
3587
3588   EL_EMERALD_YELLOW,
3589   EL_EMERALD_RED,
3590   EL_EMERALD_PURPLE,
3591   EL_BIOMAZE,
3592
3593   EL_WALL_EMERALD_YELLOW,
3594   EL_WALL_EMERALD_RED,
3595   EL_WALL_EMERALD_PURPLE,
3596   EL_WALL_BD_DIAMOND,
3597
3598   EL_SPEED_PILL,
3599   EL_PACMAN_UP,
3600   EL_TIME_ORB_FULL,
3601   EL_TIME_ORB_EMPTY,
3602
3603   EL_PACMAN_LEFT,
3604   EL_DARK_YAMYAM,
3605   EL_PACMAN_RIGHT,
3606   EL_EMPTY,
3607
3608   EL_BLACK_ORB,
3609   EL_PACMAN_DOWN,
3610   EL_LAMP,
3611   EL_LAMP_ACTIVE,
3612
3613   EL_DYNABOMB_INCREASE_NUMBER,
3614   EL_DYNABOMB_INCREASE_SIZE,
3615   EL_DYNABOMB_INCREASE_POWER,
3616   EL_STONEBLOCK,
3617
3618   EL_MOLE,
3619   EL_PENGUIN,
3620   EL_PIG,
3621   EL_DRAGON,
3622
3623   EL_BUG,
3624   EL_MOLE_UP,
3625   EL_BD_BUTTERFLY,
3626   EL_BD_FIREFLY,
3627
3628   EL_MOLE_LEFT,
3629   EL_SATELLITE,
3630   EL_MOLE_RIGHT,
3631   EL_PACMAN,
3632
3633   EL_SPACESHIP,
3634   EL_MOLE_DOWN,
3635   EL_INVISIBLE_STEELWALL,
3636   EL_INVISIBLE_WALL,
3637
3638   EL_EXPANDABLE_WALL,
3639   EL_EXPANDABLE_WALL_HORIZONTAL,
3640   EL_EXPANDABLE_WALL_VERTICAL,
3641   EL_EXPANDABLE_WALL_ANY,
3642 };
3643 static int *editor_hl_rnd_ptr = editor_hl_rnd;
3644 static int *editor_el_rnd_ptr = editor_el_rnd;
3645 static int num_editor_hl_rnd = SIZEOF_ARRAY_INT(editor_hl_rnd);
3646 static int num_editor_el_rnd = SIZEOF_ARRAY_INT(editor_el_rnd);
3647
3648 static int editor_hl_sokoban[] =
3649 {
3650   EL_INTERNAL_CASCADE_SB_ACTIVE,
3651   EL_CHAR('S'),
3652   EL_CHAR('B'),
3653   EL_EMPTY,
3654 };
3655
3656 static int editor_el_sokoban[] =
3657 {
3658   EL_SOKOBAN_OBJECT,
3659   EL_SOKOBAN_FIELD_EMPTY,
3660   EL_SOKOBAN_FIELD_FULL,
3661   EL_SOKOBAN_FIELD_PLAYER,
3662 };
3663 static int *editor_hl_sokoban_ptr = editor_hl_sokoban;
3664 static int *editor_el_sokoban_ptr = editor_el_sokoban;
3665 static int num_editor_hl_sokoban = SIZEOF_ARRAY_INT(editor_hl_sokoban);
3666 static int num_editor_el_sokoban = SIZEOF_ARRAY_INT(editor_el_sokoban);
3667
3668 static int editor_hl_supaplex[] =
3669 {
3670   EL_INTERNAL_CASCADE_SP_ACTIVE,
3671   EL_CHAR('S'),
3672   EL_CHAR('P'),
3673   EL_EMPTY,
3674 };
3675
3676 static int editor_el_supaplex[] =
3677 {
3678   EL_SP_MURPHY,
3679   EL_EMPTY,
3680   EL_SP_BASE,
3681   EL_SP_BUGGY_BASE,
3682
3683   EL_SP_INFOTRON,
3684   EL_SP_ZONK,
3685   EL_SP_SNIKSNAK,
3686   EL_SP_ELECTRON,
3687
3688   EL_SP_DISK_RED,
3689   EL_SP_DISK_ORANGE,
3690   EL_SP_DISK_YELLOW,
3691   EL_SP_TERMINAL,
3692
3693   EL_SP_EXIT_CLOSED,
3694   EL_SP_PORT_HORIZONTAL,
3695   EL_SP_PORT_VERTICAL,
3696   EL_SP_PORT_ANY,
3697
3698   EL_SP_PORT_LEFT,
3699   EL_SP_PORT_RIGHT,
3700   EL_SP_PORT_UP,
3701   EL_SP_PORT_DOWN,
3702
3703   EL_SP_GRAVITY_PORT_LEFT,
3704   EL_SP_GRAVITY_PORT_RIGHT,
3705   EL_SP_GRAVITY_PORT_UP,
3706   EL_SP_GRAVITY_PORT_DOWN,
3707
3708   EL_SP_GRAVITY_ON_PORT_LEFT,
3709   EL_SP_GRAVITY_ON_PORT_RIGHT,
3710   EL_SP_GRAVITY_ON_PORT_UP,
3711   EL_SP_GRAVITY_ON_PORT_DOWN,
3712
3713   EL_SP_GRAVITY_OFF_PORT_LEFT,
3714   EL_SP_GRAVITY_OFF_PORT_RIGHT,
3715   EL_SP_GRAVITY_OFF_PORT_UP,
3716   EL_SP_GRAVITY_OFF_PORT_DOWN,
3717
3718   EL_SP_HARDWARE_GRAY,
3719   EL_SP_HARDWARE_GREEN,
3720   EL_SP_HARDWARE_BLUE,
3721   EL_SP_HARDWARE_RED,
3722
3723   EL_SP_HARDWARE_BASE_1,
3724   EL_SP_HARDWARE_BASE_2,
3725   EL_SP_HARDWARE_BASE_3,
3726   EL_SP_HARDWARE_BASE_4,
3727
3728   EL_SP_HARDWARE_BASE_5,
3729   EL_SP_HARDWARE_BASE_6,
3730   EL_SP_HARDWARE_YELLOW,
3731   EL_SP_CHIP_TOP,
3732
3733   EL_SP_CHIP_SINGLE,
3734   EL_SP_CHIP_LEFT,
3735   EL_SP_CHIP_RIGHT,
3736   EL_SP_CHIP_BOTTOM,
3737 };
3738 static int *editor_hl_supaplex_ptr = editor_hl_supaplex;
3739 static int *editor_el_supaplex_ptr = editor_el_supaplex;
3740 static int num_editor_hl_supaplex = SIZEOF_ARRAY_INT(editor_hl_supaplex);
3741 static int num_editor_el_supaplex = SIZEOF_ARRAY_INT(editor_el_supaplex);
3742
3743 static int editor_hl_diamond_caves[] =
3744 {
3745   EL_INTERNAL_CASCADE_DC_ACTIVE,
3746   EL_CHAR('D'),
3747   EL_CHAR('C'),
3748   EL_CHAR('2'),
3749 };
3750
3751 static int editor_el_diamond_caves[] =
3752 {
3753   EL_PEARL,
3754   EL_CRYSTAL,
3755   EL_WALL_PEARL,
3756   EL_WALL_CRYSTAL,
3757
3758   EL_CONVEYOR_BELT_1_LEFT,
3759   EL_CONVEYOR_BELT_1_MIDDLE,
3760   EL_CONVEYOR_BELT_1_RIGHT,
3761   EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
3762
3763   EL_CONVEYOR_BELT_2_LEFT,
3764   EL_CONVEYOR_BELT_2_MIDDLE,
3765   EL_CONVEYOR_BELT_2_RIGHT,
3766   EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
3767
3768   EL_CONVEYOR_BELT_3_LEFT,
3769   EL_CONVEYOR_BELT_3_MIDDLE,
3770   EL_CONVEYOR_BELT_3_RIGHT,
3771   EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
3772
3773   EL_CONVEYOR_BELT_4_LEFT,
3774   EL_CONVEYOR_BELT_4_MIDDLE,
3775   EL_CONVEYOR_BELT_4_RIGHT,
3776   EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
3777
3778   EL_CONVEYOR_BELT_1_SWITCH_LEFT,
3779   EL_CONVEYOR_BELT_2_SWITCH_LEFT,
3780   EL_CONVEYOR_BELT_3_SWITCH_LEFT,
3781   EL_CONVEYOR_BELT_4_SWITCH_LEFT,
3782
3783   EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
3784   EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
3785   EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
3786   EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
3787
3788   EL_TIMEGATE_CLOSED,
3789   EL_TIMEGATE_OPEN,
3790   EL_TIMEGATE_SWITCH,
3791   EL_DC_TIMEGATE_SWITCH,
3792
3793   EL_SWITCHGATE_CLOSED,
3794   EL_SWITCHGATE_OPEN,
3795   EL_SWITCHGATE_SWITCH_UP,
3796   EL_SWITCHGATE_SWITCH_DOWN,
3797
3798   EL_LIGHT_SWITCH,
3799   EL_LIGHT_SWITCH_ACTIVE,
3800   EL_DC_SWITCHGATE_SWITCH_UP,
3801   EL_DC_SWITCHGATE_SWITCH_DOWN,
3802
3803   EL_STEEL_EXIT_CLOSED,
3804   EL_STEEL_EXIT_OPEN,
3805   EL_STEELWALL_SLIPPERY,
3806   EL_INVISIBLE_SAND,
3807
3808   EL_QUICKSAND_FAST_EMPTY,
3809   EL_QUICKSAND_FAST_FULL,
3810   EL_LANDMINE,
3811   EL_DC_LANDMINE,
3812
3813   EL_SHIELD_NORMAL,
3814   EL_SHIELD_DEADLY,
3815   EL_EXTRA_TIME,
3816   EL_DC_MAGIC_WALL,
3817
3818   EL_ENVELOPE_1,
3819   EL_ENVELOPE_2,
3820   EL_ENVELOPE_3,
3821   EL_ENVELOPE_4,
3822
3823   EL_SIGN_RADIOACTIVITY,
3824   EL_SIGN_WHEELCHAIR,
3825   EL_SIGN_PARKING,
3826   EL_SIGN_NO_ENTRY,
3827
3828   EL_SIGN_GIVE_WAY,
3829   EL_SIGN_ENTRY_FORBIDDEN,
3830   EL_SIGN_EMERGENCY_EXIT,
3831   EL_SIGN_YIN_YANG,
3832
3833 #if 0
3834   EL_SIGN_SPERMS,
3835   EL_SIGN_BULLET,
3836   EL_SIGN_HEART,
3837   EL_SIGN_CROSS,
3838
3839   EL_SIGN_FRANKIE,
3840   EL_EMPTY,
3841   EL_EMPTY,
3842   EL_EMPTY,
3843
3844   EL_SPERMS,
3845   EL_BULLET,
3846   EL_HEART,
3847   EL_CROSS,
3848
3849   EL_FRANKIE,
3850   EL_EMPTY,
3851   EL_EMPTY,
3852   EL_EMPTY,
3853 #endif
3854
3855   EL_DC_STEELWALL_2_SINGLE,
3856   EL_DC_STEELWALL_2_TOP,
3857   EL_SIGN_EXCLAMATION,
3858   EL_SIGN_STOP,
3859
3860   EL_DC_STEELWALL_2_LEFT,
3861   EL_DC_STEELWALL_2_MIDDLE,
3862   EL_DC_STEELWALL_2_HORIZONTAL,
3863   EL_DC_STEELWALL_2_RIGHT,
3864
3865   EL_DC_STEELWALL_1_TOPLEFT,
3866   EL_DC_STEELWALL_2_VERTICAL,
3867   EL_DC_STEELWALL_1_TOPRIGHT,
3868   EL_DC_GATE_WHITE,
3869
3870   EL_DC_STEELWALL_1_VERTICAL,
3871   EL_DC_STEELWALL_2_BOTTOM,
3872   EL_DC_KEY_WHITE,
3873   EL_DC_GATE_WHITE_GRAY,
3874
3875   EL_DC_STEELWALL_1_BOTTOMLEFT,
3876   EL_DC_STEELWALL_1_HORIZONTAL,
3877   EL_DC_STEELWALL_1_BOTTOMRIGHT,
3878   EL_DC_GATE_FAKE_GRAY,
3879
3880   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
3881   EL_DC_STEELWALL_1_BOTTOM,
3882   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
3883   EL_EXPANDABLE_STEELWALL_HORIZONTAL,
3884
3885   EL_DC_STEELWALL_1_RIGHT,
3886   EL_EMPTY,
3887   EL_DC_STEELWALL_1_LEFT,
3888   EL_EXPANDABLE_STEELWALL_VERTICAL,
3889
3890   EL_DC_STEELWALL_1_TOPRIGHT_2,
3891   EL_DC_STEELWALL_1_TOP,
3892   EL_DC_STEELWALL_1_TOPLEFT_2,
3893   EL_EXPANDABLE_STEELWALL_ANY,
3894 };
3895 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
3896 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
3897 static int num_editor_hl_diamond_caves = SIZEOF_ARRAY_INT(editor_hl_diamond_caves);
3898 static int num_editor_el_diamond_caves = SIZEOF_ARRAY_INT(editor_el_diamond_caves);
3899
3900 static int editor_hl_dx_boulderdash[] =
3901 {
3902   EL_INTERNAL_CASCADE_DX_ACTIVE,
3903   EL_CHAR('D'),
3904   EL_CHAR('X'),
3905   EL_EMPTY,
3906 };
3907
3908 static int editor_el_dx_boulderdash[] =
3909 {
3910   EL_EMPTY,
3911   EL_TUBE_RIGHT_DOWN,
3912   EL_TUBE_HORIZONTAL_DOWN,
3913   EL_TUBE_LEFT_DOWN,
3914
3915   EL_TUBE_HORIZONTAL,
3916   EL_TUBE_VERTICAL_RIGHT,
3917   EL_TUBE_ANY,
3918   EL_TUBE_VERTICAL_LEFT,
3919
3920   EL_TUBE_VERTICAL,
3921   EL_TUBE_RIGHT_UP,
3922   EL_TUBE_HORIZONTAL_UP,
3923   EL_TUBE_LEFT_UP,
3924
3925   EL_TRAP,
3926   EL_DX_SUPABOMB,
3927   EL_EMPTY,
3928   EL_EMPTY
3929 };
3930 static int *editor_hl_dx_boulderdash_ptr = editor_hl_dx_boulderdash;
3931 static int *editor_el_dx_boulderdash_ptr = editor_el_dx_boulderdash;
3932 static int num_editor_hl_dx_boulderdash = SIZEOF_ARRAY_INT(editor_hl_dx_boulderdash);
3933 static int num_editor_el_dx_boulderdash = SIZEOF_ARRAY_INT(editor_el_dx_boulderdash);
3934
3935 static int editor_hl_chars[] =
3936 {
3937   EL_INTERNAL_CASCADE_CHARS_ACTIVE,
3938   EL_CHAR('T'),
3939   EL_CHAR('X'),
3940   EL_CHAR('T'),
3941 };
3942
3943 static int editor_el_chars[] =
3944 {
3945   EL_CHAR(' '),
3946   EL_CHAR('!'),
3947   EL_CHAR('"'),
3948   EL_CHAR('#'),
3949
3950   EL_CHAR('$'),
3951   EL_CHAR('%'),
3952   EL_CHAR('&'),
3953   EL_CHAR('\''),
3954
3955   EL_CHAR('('),
3956   EL_CHAR(')'),
3957   EL_CHAR('*'),
3958   EL_CHAR('+'),
3959
3960   EL_CHAR(','),
3961   EL_CHAR('-'),
3962   EL_CHAR('.'),
3963   EL_CHAR('/'),
3964
3965   EL_CHAR('0'),
3966   EL_CHAR('1'),
3967   EL_CHAR('2'),
3968   EL_CHAR('3'),
3969
3970   EL_CHAR('4'),
3971   EL_CHAR('5'),
3972   EL_CHAR('6'),
3973   EL_CHAR('7'),
3974
3975   EL_CHAR('8'),
3976   EL_CHAR('9'),
3977   EL_CHAR(':'),
3978   EL_CHAR(';'),
3979
3980   EL_CHAR('<'),
3981   EL_CHAR('='),
3982   EL_CHAR('>'),
3983   EL_CHAR('?'),
3984
3985   EL_CHAR('@'),
3986   EL_CHAR('A'),
3987   EL_CHAR('B'),
3988   EL_CHAR('C'),
3989
3990   EL_CHAR('D'),
3991   EL_CHAR('E'),
3992   EL_CHAR('F'),
3993   EL_CHAR('G'),
3994
3995   EL_CHAR('H'),
3996   EL_CHAR('I'),
3997   EL_CHAR('J'),
3998   EL_CHAR('K'),
3999
4000   EL_CHAR('L'),
4001   EL_CHAR('M'),
4002   EL_CHAR('N'),
4003   EL_CHAR('O'),
4004
4005   EL_CHAR('P'),
4006   EL_CHAR('Q'),
4007   EL_CHAR('R'),
4008   EL_CHAR('S'),
4009
4010   EL_CHAR('T'),
4011   EL_CHAR('U'),
4012   EL_CHAR('V'),
4013   EL_CHAR('W'),
4014
4015   EL_CHAR('X'),
4016   EL_CHAR('Y'),
4017   EL_CHAR('Z'),
4018   EL_CHAR('['),
4019
4020   EL_CHAR('\\'),
4021   EL_CHAR(']'),
4022   EL_CHAR('^'),
4023   EL_CHAR('_'),
4024
4025   EL_CHAR(CHAR_BYTE_COPYRIGHT),
4026   EL_CHAR(CHAR_BYTE_UMLAUT_A),
4027   EL_CHAR(CHAR_BYTE_UMLAUT_O),
4028   EL_CHAR(CHAR_BYTE_UMLAUT_U),
4029
4030   EL_CHAR(CHAR_BYTE_DEGREE),
4031   EL_CHAR(CHAR_BYTE_REGISTERED),
4032   EL_CHAR(FONT_ASCII_CURSOR),
4033   EL_CHAR(FONT_ASCII_BUTTON),
4034
4035   EL_CHAR(FONT_ASCII_UP),
4036   EL_CHAR(FONT_ASCII_DOWN),
4037   EL_CHAR(' '),
4038   EL_CHAR(' ')
4039 };
4040 static int *editor_hl_chars_ptr = editor_hl_chars;
4041 static int *editor_el_chars_ptr = editor_el_chars;
4042 static int num_editor_hl_chars = SIZEOF_ARRAY_INT(editor_hl_chars);
4043 static int num_editor_el_chars = SIZEOF_ARRAY_INT(editor_el_chars);
4044
4045 static int editor_hl_steel_chars[] =
4046 {
4047   EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
4048   EL_STEEL_CHAR('T'),
4049   EL_STEEL_CHAR('X'),
4050   EL_STEEL_CHAR('T'),
4051 };
4052
4053 static int editor_el_steel_chars[] =
4054 {
4055   EL_STEEL_CHAR(' '),
4056   EL_STEEL_CHAR('!'),
4057   EL_STEEL_CHAR('"'),
4058   EL_STEEL_CHAR('#'),
4059
4060   EL_STEEL_CHAR('$'),
4061   EL_STEEL_CHAR('%'),
4062   EL_STEEL_CHAR('&'),
4063   EL_STEEL_CHAR('\''),
4064
4065   EL_STEEL_CHAR('('),
4066   EL_STEEL_CHAR(')'),
4067   EL_STEEL_CHAR('*'),
4068   EL_STEEL_CHAR('+'),
4069
4070   EL_STEEL_CHAR(','),
4071   EL_STEEL_CHAR('-'),
4072   EL_STEEL_CHAR('.'),
4073   EL_STEEL_CHAR('/'),
4074
4075   EL_STEEL_CHAR('0'),
4076   EL_STEEL_CHAR('1'),
4077   EL_STEEL_CHAR('2'),
4078   EL_STEEL_CHAR('3'),
4079
4080   EL_STEEL_CHAR('4'),
4081   EL_STEEL_CHAR('5'),
4082   EL_STEEL_CHAR('6'),
4083   EL_STEEL_CHAR('7'),
4084
4085   EL_STEEL_CHAR('8'),
4086   EL_STEEL_CHAR('9'),
4087   EL_STEEL_CHAR(':'),
4088   EL_STEEL_CHAR(';'),
4089
4090   EL_STEEL_CHAR('<'),
4091   EL_STEEL_CHAR('='),
4092   EL_STEEL_CHAR('>'),
4093   EL_STEEL_CHAR('?'),
4094
4095   EL_STEEL_CHAR('@'),
4096   EL_STEEL_CHAR('A'),
4097   EL_STEEL_CHAR('B'),
4098   EL_STEEL_CHAR('C'),
4099
4100   EL_STEEL_CHAR('D'),
4101   EL_STEEL_CHAR('E'),
4102   EL_STEEL_CHAR('F'),
4103   EL_STEEL_CHAR('G'),
4104
4105   EL_STEEL_CHAR('H'),
4106   EL_STEEL_CHAR('I'),
4107   EL_STEEL_CHAR('J'),
4108   EL_STEEL_CHAR('K'),
4109
4110   EL_STEEL_CHAR('L'),
4111   EL_STEEL_CHAR('M'),
4112   EL_STEEL_CHAR('N'),
4113   EL_STEEL_CHAR('O'),
4114
4115   EL_STEEL_CHAR('P'),
4116   EL_STEEL_CHAR('Q'),
4117   EL_STEEL_CHAR('R'),
4118   EL_STEEL_CHAR('S'),
4119
4120   EL_STEEL_CHAR('T'),
4121   EL_STEEL_CHAR('U'),
4122   EL_STEEL_CHAR('V'),
4123   EL_STEEL_CHAR('W'),
4124
4125   EL_STEEL_CHAR('X'),
4126   EL_STEEL_CHAR('Y'),
4127   EL_STEEL_CHAR('Z'),
4128   EL_STEEL_CHAR('['),
4129
4130   EL_STEEL_CHAR('\\'),
4131   EL_STEEL_CHAR(']'),
4132   EL_STEEL_CHAR('^'),
4133   EL_STEEL_CHAR('_'),
4134
4135   EL_STEEL_CHAR(CHAR_BYTE_COPYRIGHT),
4136   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_A),
4137   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_O),
4138   EL_STEEL_CHAR(CHAR_BYTE_UMLAUT_U),
4139
4140   EL_STEEL_CHAR(CHAR_BYTE_DEGREE),
4141   EL_STEEL_CHAR(CHAR_BYTE_REGISTERED),
4142   EL_STEEL_CHAR(FONT_ASCII_CURSOR),
4143   EL_STEEL_CHAR(FONT_ASCII_BUTTON),
4144
4145   EL_STEEL_CHAR(FONT_ASCII_UP),
4146   EL_STEEL_CHAR(FONT_ASCII_DOWN),
4147   EL_STEEL_CHAR(' '),
4148   EL_STEEL_CHAR(' ')
4149 };
4150 static int *editor_hl_steel_chars_ptr = editor_hl_steel_chars;
4151 static int *editor_el_steel_chars_ptr = editor_el_steel_chars;
4152 static int num_editor_hl_steel_chars = SIZEOF_ARRAY_INT(editor_hl_steel_chars);
4153 static int num_editor_el_steel_chars = SIZEOF_ARRAY_INT(editor_el_steel_chars);
4154
4155 static int editor_hl_custom[] =
4156 {
4157   EL_INTERNAL_CASCADE_CE_ACTIVE,
4158   EL_CHAR('C'),
4159   EL_CHAR('E'),
4160   EL_EMPTY,
4161 };
4162
4163 static int editor_el_custom[] =
4164 {
4165   EL_CUSTOM_START + 0,
4166   EL_CUSTOM_START + 1,
4167   EL_CUSTOM_START + 2,
4168   EL_CUSTOM_START + 3,
4169
4170   EL_CUSTOM_START + 4,
4171   EL_CUSTOM_START + 5,
4172   EL_CUSTOM_START + 6,
4173   EL_CUSTOM_START + 7,
4174
4175   EL_CUSTOM_START + 8,
4176   EL_CUSTOM_START + 9,
4177   EL_CUSTOM_START + 10,
4178   EL_CUSTOM_START + 11,
4179
4180   EL_CUSTOM_START + 12,
4181   EL_CUSTOM_START + 13,
4182   EL_CUSTOM_START + 14,
4183   EL_CUSTOM_START + 15,
4184
4185   EL_CUSTOM_START + 16,
4186   EL_CUSTOM_START + 17,
4187   EL_CUSTOM_START + 18,
4188   EL_CUSTOM_START + 19,
4189
4190   EL_CUSTOM_START + 20,
4191   EL_CUSTOM_START + 21,
4192   EL_CUSTOM_START + 22,
4193   EL_CUSTOM_START + 23,
4194
4195   EL_CUSTOM_START + 24,
4196   EL_CUSTOM_START + 25,
4197   EL_CUSTOM_START + 26,
4198   EL_CUSTOM_START + 27,
4199
4200   EL_CUSTOM_START + 28,
4201   EL_CUSTOM_START + 29,
4202   EL_CUSTOM_START + 30,
4203   EL_CUSTOM_START + 31,
4204
4205   EL_CUSTOM_START + 32,
4206   EL_CUSTOM_START + 33,
4207   EL_CUSTOM_START + 34,
4208   EL_CUSTOM_START + 35,
4209
4210   EL_CUSTOM_START + 36,
4211   EL_CUSTOM_START + 37,
4212   EL_CUSTOM_START + 38,
4213   EL_CUSTOM_START + 39,
4214
4215   EL_CUSTOM_START + 40,
4216   EL_CUSTOM_START + 41,
4217   EL_CUSTOM_START + 42,
4218   EL_CUSTOM_START + 43,
4219
4220   EL_CUSTOM_START + 44,
4221   EL_CUSTOM_START + 45,
4222   EL_CUSTOM_START + 46,
4223   EL_CUSTOM_START + 47,
4224
4225   EL_CUSTOM_START + 48,
4226   EL_CUSTOM_START + 49,
4227   EL_CUSTOM_START + 50,
4228   EL_CUSTOM_START + 51,
4229
4230   EL_CUSTOM_START + 52,
4231   EL_CUSTOM_START + 53,
4232   EL_CUSTOM_START + 54,
4233   EL_CUSTOM_START + 55,
4234
4235   EL_CUSTOM_START + 56,
4236   EL_CUSTOM_START + 57,
4237   EL_CUSTOM_START + 58,
4238   EL_CUSTOM_START + 59,
4239
4240   EL_CUSTOM_START + 60,
4241   EL_CUSTOM_START + 61,
4242   EL_CUSTOM_START + 62,
4243   EL_CUSTOM_START + 63,
4244
4245   EL_CUSTOM_START + 64,
4246   EL_CUSTOM_START + 65,
4247   EL_CUSTOM_START + 66,
4248   EL_CUSTOM_START + 67,
4249
4250   EL_CUSTOM_START + 68,
4251   EL_CUSTOM_START + 69,
4252   EL_CUSTOM_START + 70,
4253   EL_CUSTOM_START + 71,
4254
4255   EL_CUSTOM_START + 72,
4256   EL_CUSTOM_START + 73,
4257   EL_CUSTOM_START + 74,
4258   EL_CUSTOM_START + 75,
4259
4260   EL_CUSTOM_START + 76,
4261   EL_CUSTOM_START + 77,
4262   EL_CUSTOM_START + 78,
4263   EL_CUSTOM_START + 79,
4264
4265   EL_CUSTOM_START + 80,
4266   EL_CUSTOM_START + 81,
4267   EL_CUSTOM_START + 82,
4268   EL_CUSTOM_START + 83,
4269
4270   EL_CUSTOM_START + 84,
4271   EL_CUSTOM_START + 85,
4272   EL_CUSTOM_START + 86,
4273   EL_CUSTOM_START + 87,
4274
4275   EL_CUSTOM_START + 88,
4276   EL_CUSTOM_START + 89,
4277   EL_CUSTOM_START + 90,
4278   EL_CUSTOM_START + 91,
4279
4280   EL_CUSTOM_START + 92,
4281   EL_CUSTOM_START + 93,
4282   EL_CUSTOM_START + 94,
4283   EL_CUSTOM_START + 95,
4284
4285   EL_CUSTOM_START + 96,
4286   EL_CUSTOM_START + 97,
4287   EL_CUSTOM_START + 98,
4288   EL_CUSTOM_START + 99,
4289
4290   EL_CUSTOM_START + 100,
4291   EL_CUSTOM_START + 101,
4292   EL_CUSTOM_START + 102,
4293   EL_CUSTOM_START + 103,
4294
4295   EL_CUSTOM_START + 104,
4296   EL_CUSTOM_START + 105,
4297   EL_CUSTOM_START + 106,
4298   EL_CUSTOM_START + 107,
4299
4300   EL_CUSTOM_START + 108,
4301   EL_CUSTOM_START + 109,
4302   EL_CUSTOM_START + 110,
4303   EL_CUSTOM_START + 111,
4304
4305   EL_CUSTOM_START + 112,
4306   EL_CUSTOM_START + 113,
4307   EL_CUSTOM_START + 114,
4308   EL_CUSTOM_START + 115,
4309
4310   EL_CUSTOM_START + 116,
4311   EL_CUSTOM_START + 117,
4312   EL_CUSTOM_START + 118,
4313   EL_CUSTOM_START + 119,
4314
4315   EL_CUSTOM_START + 120,
4316   EL_CUSTOM_START + 121,
4317   EL_CUSTOM_START + 122,
4318   EL_CUSTOM_START + 123,
4319
4320   EL_CUSTOM_START + 124,
4321   EL_CUSTOM_START + 125,
4322   EL_CUSTOM_START + 126,
4323   EL_CUSTOM_START + 127,
4324
4325   EL_CUSTOM_START + 128,
4326   EL_CUSTOM_START + 129,
4327   EL_CUSTOM_START + 130,
4328   EL_CUSTOM_START + 131,
4329
4330   EL_CUSTOM_START + 132,
4331   EL_CUSTOM_START + 133,
4332   EL_CUSTOM_START + 134,
4333   EL_CUSTOM_START + 135,
4334
4335   EL_CUSTOM_START + 136,
4336   EL_CUSTOM_START + 137,
4337   EL_CUSTOM_START + 138,
4338   EL_CUSTOM_START + 139,
4339
4340   EL_CUSTOM_START + 140,
4341   EL_CUSTOM_START + 141,
4342   EL_CUSTOM_START + 142,
4343   EL_CUSTOM_START + 143,
4344
4345   EL_CUSTOM_START + 144,
4346   EL_CUSTOM_START + 145,
4347   EL_CUSTOM_START + 146,
4348   EL_CUSTOM_START + 147,
4349
4350   EL_CUSTOM_START + 148,
4351   EL_CUSTOM_START + 149,
4352   EL_CUSTOM_START + 150,
4353   EL_CUSTOM_START + 151,
4354
4355   EL_CUSTOM_START + 152,
4356   EL_CUSTOM_START + 153,
4357   EL_CUSTOM_START + 154,
4358   EL_CUSTOM_START + 155,
4359
4360   EL_CUSTOM_START + 156,
4361   EL_CUSTOM_START + 157,
4362   EL_CUSTOM_START + 158,
4363   EL_CUSTOM_START + 159,
4364
4365   EL_CUSTOM_START + 160,
4366   EL_CUSTOM_START + 161,
4367   EL_CUSTOM_START + 162,
4368   EL_CUSTOM_START + 163,
4369
4370   EL_CUSTOM_START + 164,
4371   EL_CUSTOM_START + 165,
4372   EL_CUSTOM_START + 166,
4373   EL_CUSTOM_START + 167,
4374
4375   EL_CUSTOM_START + 168,
4376   EL_CUSTOM_START + 169,
4377   EL_CUSTOM_START + 170,
4378   EL_CUSTOM_START + 171,
4379
4380   EL_CUSTOM_START + 172,
4381   EL_CUSTOM_START + 173,
4382   EL_CUSTOM_START + 174,
4383   EL_CUSTOM_START + 175,
4384
4385   EL_CUSTOM_START + 176,
4386   EL_CUSTOM_START + 177,
4387   EL_CUSTOM_START + 178,
4388   EL_CUSTOM_START + 179,
4389
4390   EL_CUSTOM_START + 180,
4391   EL_CUSTOM_START + 181,
4392   EL_CUSTOM_START + 182,
4393   EL_CUSTOM_START + 183,
4394
4395   EL_CUSTOM_START + 184,
4396   EL_CUSTOM_START + 185,
4397   EL_CUSTOM_START + 186,
4398   EL_CUSTOM_START + 187,
4399
4400   EL_CUSTOM_START + 188,
4401   EL_CUSTOM_START + 189,
4402   EL_CUSTOM_START + 190,
4403   EL_CUSTOM_START + 191,
4404
4405   EL_CUSTOM_START + 192,
4406   EL_CUSTOM_START + 193,
4407   EL_CUSTOM_START + 194,
4408   EL_CUSTOM_START + 195,
4409
4410   EL_CUSTOM_START + 196,
4411   EL_CUSTOM_START + 197,
4412   EL_CUSTOM_START + 198,
4413   EL_CUSTOM_START + 199,
4414
4415   EL_CUSTOM_START + 200,
4416   EL_CUSTOM_START + 201,
4417   EL_CUSTOM_START + 202,
4418   EL_CUSTOM_START + 203,
4419
4420   EL_CUSTOM_START + 204,
4421   EL_CUSTOM_START + 205,
4422   EL_CUSTOM_START + 206,
4423   EL_CUSTOM_START + 207,
4424
4425   EL_CUSTOM_START + 208,
4426   EL_CUSTOM_START + 209,
4427   EL_CUSTOM_START + 210,
4428   EL_CUSTOM_START + 211,
4429
4430   EL_CUSTOM_START + 212,
4431   EL_CUSTOM_START + 213,
4432   EL_CUSTOM_START + 214,
4433   EL_CUSTOM_START + 215,
4434
4435   EL_CUSTOM_START + 216,
4436   EL_CUSTOM_START + 217,
4437   EL_CUSTOM_START + 218,
4438   EL_CUSTOM_START + 219,
4439
4440   EL_CUSTOM_START + 220,
4441   EL_CUSTOM_START + 221,
4442   EL_CUSTOM_START + 222,
4443   EL_CUSTOM_START + 223,
4444
4445   EL_CUSTOM_START + 224,
4446   EL_CUSTOM_START + 225,
4447   EL_CUSTOM_START + 226,
4448   EL_CUSTOM_START + 227,
4449
4450   EL_CUSTOM_START + 228,
4451   EL_CUSTOM_START + 229,
4452   EL_CUSTOM_START + 230,
4453   EL_CUSTOM_START + 231,
4454
4455   EL_CUSTOM_START + 232,
4456   EL_CUSTOM_START + 233,
4457   EL_CUSTOM_START + 234,
4458   EL_CUSTOM_START + 235,
4459
4460   EL_CUSTOM_START + 236,
4461   EL_CUSTOM_START + 237,
4462   EL_CUSTOM_START + 238,
4463   EL_CUSTOM_START + 239,
4464
4465   EL_CUSTOM_START + 240,
4466   EL_CUSTOM_START + 241,
4467   EL_CUSTOM_START + 242,
4468   EL_CUSTOM_START + 243,
4469
4470   EL_CUSTOM_START + 244,
4471   EL_CUSTOM_START + 245,
4472   EL_CUSTOM_START + 246,
4473   EL_CUSTOM_START + 247,
4474
4475   EL_CUSTOM_START + 248,
4476   EL_CUSTOM_START + 249,
4477   EL_CUSTOM_START + 250,
4478   EL_CUSTOM_START + 251,
4479
4480   EL_CUSTOM_START + 252,
4481   EL_CUSTOM_START + 253,
4482   EL_CUSTOM_START + 254,
4483   EL_CUSTOM_START + 255
4484 };
4485 static int *editor_hl_custom_ptr = editor_hl_custom;
4486 static int *editor_el_custom_ptr = editor_el_custom;
4487 static int num_editor_hl_custom = SIZEOF_ARRAY_INT(editor_hl_custom);
4488 static int num_editor_el_custom = SIZEOF_ARRAY_INT(editor_el_custom);
4489
4490 static int editor_hl_group[] =
4491 {
4492   EL_INTERNAL_CASCADE_GE_ACTIVE,
4493   EL_CHAR('G'),
4494   EL_CHAR('E'),
4495   EL_EMPTY,
4496 };
4497
4498 static int editor_el_group[] =
4499 {
4500   EL_GROUP_START + 0,
4501   EL_GROUP_START + 1,
4502   EL_GROUP_START + 2,
4503   EL_GROUP_START + 3,
4504
4505   EL_GROUP_START + 4,
4506   EL_GROUP_START + 5,
4507   EL_GROUP_START + 6,
4508   EL_GROUP_START + 7,
4509
4510   EL_GROUP_START + 8,
4511   EL_GROUP_START + 9,
4512   EL_GROUP_START + 10,
4513   EL_GROUP_START + 11,
4514
4515   EL_GROUP_START + 12,
4516   EL_GROUP_START + 13,
4517   EL_GROUP_START + 14,
4518   EL_GROUP_START + 15,
4519
4520   EL_GROUP_START + 16,
4521   EL_GROUP_START + 17,
4522   EL_GROUP_START + 18,
4523   EL_GROUP_START + 19,
4524
4525   EL_GROUP_START + 20,
4526   EL_GROUP_START + 21,
4527   EL_GROUP_START + 22,
4528   EL_GROUP_START + 23,
4529
4530   EL_GROUP_START + 24,
4531   EL_GROUP_START + 25,
4532   EL_GROUP_START + 26,
4533   EL_GROUP_START + 27,
4534
4535   EL_GROUP_START + 28,
4536   EL_GROUP_START + 29,
4537   EL_GROUP_START + 30,
4538   EL_GROUP_START + 31
4539 };
4540 static int *editor_hl_group_ptr = editor_hl_group;
4541 static int *editor_el_group_ptr = editor_el_group;
4542 static int num_editor_hl_group = SIZEOF_ARRAY_INT(editor_hl_group);
4543 static int num_editor_el_group = SIZEOF_ARRAY_INT(editor_el_group);
4544
4545 static int editor_hl_reference[] =
4546 {
4547   EL_INTERNAL_CASCADE_REF_ACTIVE,
4548   EL_CHAR('R'),
4549   EL_CHAR('E'),
4550   EL_CHAR('F')
4551 };
4552
4553 static int editor_el_reference[] =
4554 {
4555   EL_TRIGGER_PLAYER,
4556   EL_TRIGGER_ELEMENT,
4557   EL_TRIGGER_CE_VALUE,
4558   EL_TRIGGER_CE_SCORE,
4559
4560   EL_SELF,
4561   EL_ANY_ELEMENT,
4562   EL_CURRENT_CE_VALUE,
4563   EL_CURRENT_CE_SCORE,
4564
4565   EL_PREV_CE_8,
4566   EL_PREV_CE_7,
4567   EL_PREV_CE_6,
4568   EL_PREV_CE_5,
4569
4570   EL_PREV_CE_4,
4571   EL_PREV_CE_3,
4572   EL_PREV_CE_2,
4573   EL_PREV_CE_1,
4574
4575   EL_NEXT_CE_1,
4576   EL_NEXT_CE_2,
4577   EL_NEXT_CE_3,
4578   EL_NEXT_CE_4,
4579
4580   EL_NEXT_CE_5,
4581   EL_NEXT_CE_6,
4582   EL_NEXT_CE_7,
4583   EL_NEXT_CE_8,
4584 };
4585 static int *editor_hl_reference_ptr = editor_hl_reference;
4586 static int *editor_el_reference_ptr = editor_el_reference;
4587 static int num_editor_hl_reference = SIZEOF_ARRAY_INT(editor_hl_reference);
4588 static int num_editor_el_reference = SIZEOF_ARRAY_INT(editor_el_reference);
4589
4590 static int editor_hl_user_defined[] =
4591 {
4592   EL_INTERNAL_CASCADE_USER_ACTIVE,
4593   EL_CHAR('M'),
4594   EL_CHAR('Y'),
4595   EL_EMPTY,
4596 };
4597
4598 static int *editor_hl_user_defined_ptr = editor_hl_user_defined;
4599 static int *editor_el_user_defined_ptr = NULL;
4600 static int num_editor_hl_user_defined=SIZEOF_ARRAY_INT(editor_hl_user_defined);
4601 static int num_editor_el_user_defined = 0;
4602
4603 static int editor_hl_dynamic[] =
4604 {
4605   EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
4606   EL_CHAR('U'),
4607   EL_CHAR('S'),
4608   EL_CHAR('E'),
4609 };
4610
4611 static int *editor_hl_dynamic_ptr = editor_hl_dynamic;
4612 static int *editor_el_dynamic_ptr = NULL;
4613 static int num_editor_hl_dynamic = SIZEOF_ARRAY_INT(editor_hl_dynamic);
4614 static int num_editor_el_dynamic = 0;
4615
4616 static int editor_hl_empty[] = { EL_EMPTY };
4617 static int *editor_el_empty = NULL;     /* dynamically allocated */
4618
4619 static int *editor_hl_empty_ptr = editor_hl_empty;
4620 static int *editor_el_empty_ptr = NULL;
4621 static int num_editor_hl_empty = 0;
4622 static int num_editor_el_empty = 0;     /* dynamically determined, if needed */
4623
4624 static boolean use_el_empty = FALSE;
4625
4626 static int *editor_elements = NULL;     /* dynamically allocated */
4627 static int num_editor_elements = 0;     /* dynamically determined */
4628
4629 static boolean setup_editor_show_always = TRUE;
4630 static boolean setup_editor_cascade_never = FALSE;
4631
4632 static int editor_hl_unused[] = { EL_EMPTY };
4633 static int *editor_hl_unused_ptr = editor_hl_unused;
4634 static int num_editor_hl_unused = 0;
4635
4636 static struct
4637 {
4638   boolean *setup_value;
4639   boolean *setup_cascade_value;
4640
4641   int **headline_list;
4642   int *headline_list_size;
4643
4644   int **element_list;
4645   int *element_list_size;
4646
4647   boolean last_setup_value;
4648 }
4649 editor_elements_info[] =
4650 {
4651   {
4652     &setup_editor_show_always,
4653     &setup_editor_cascade_never,
4654     &editor_hl_unused_ptr,              &num_editor_hl_unused,
4655     &editor_el_players_ptr,             &num_editor_el_players
4656   },
4657   {
4658     &setup.editor.el_boulderdash,
4659     &setup.editor_cascade.el_bd,
4660     &editor_hl_boulderdash_ptr,         &num_editor_hl_boulderdash,
4661     &editor_el_boulderdash_ptr,         &num_editor_el_boulderdash
4662   },
4663   {
4664     &setup.editor.el_emerald_mine,
4665     &setup.editor_cascade.el_em,
4666     &editor_hl_emerald_mine_ptr,        &num_editor_hl_emerald_mine,
4667     &editor_el_emerald_mine_ptr,        &num_editor_el_emerald_mine
4668   },
4669   {
4670     &setup.editor.el_emerald_mine_club,
4671     &setup.editor_cascade.el_emc,
4672     &editor_hl_emerald_mine_club_ptr,   &num_editor_hl_emerald_mine_club,
4673     &editor_el_emerald_mine_club_ptr,   &num_editor_el_emerald_mine_club
4674   },
4675   {
4676     &setup.editor.el_more,
4677     &setup.editor_cascade.el_rnd,
4678     &editor_hl_rnd_ptr,                 &num_editor_hl_rnd,
4679     &editor_el_rnd_ptr,                 &num_editor_el_rnd
4680   },
4681   {
4682     &setup.editor.el_sokoban,
4683     &setup.editor_cascade.el_sb,
4684     &editor_hl_sokoban_ptr,             &num_editor_hl_sokoban,
4685     &editor_el_sokoban_ptr,             &num_editor_el_sokoban
4686   },
4687   {
4688     &setup.editor.el_supaplex,
4689     &setup.editor_cascade.el_sp,
4690     &editor_hl_supaplex_ptr,            &num_editor_hl_supaplex,
4691     &editor_el_supaplex_ptr,            &num_editor_el_supaplex
4692   },
4693   {
4694     &setup.editor.el_diamond_caves,
4695     &setup.editor_cascade.el_dc,
4696     &editor_hl_diamond_caves_ptr,       &num_editor_hl_diamond_caves,
4697     &editor_el_diamond_caves_ptr,       &num_editor_el_diamond_caves
4698   },
4699   {
4700     &setup.editor.el_dx_boulderdash,
4701     &setup.editor_cascade.el_dx,
4702     &editor_hl_dx_boulderdash_ptr,      &num_editor_hl_dx_boulderdash,
4703     &editor_el_dx_boulderdash_ptr,      &num_editor_el_dx_boulderdash
4704   },
4705   {
4706     &setup.editor.el_chars,
4707     &setup.editor_cascade.el_chars,
4708     &editor_hl_chars_ptr,               &num_editor_hl_chars,
4709     &editor_el_chars_ptr,               &num_editor_el_chars
4710   },
4711   {
4712     &setup.editor.el_steel_chars,
4713     &setup.editor_cascade.el_steel_chars,
4714     &editor_hl_steel_chars_ptr,         &num_editor_hl_steel_chars,
4715     &editor_el_steel_chars_ptr,         &num_editor_el_steel_chars
4716   },
4717   {
4718     &setup.editor.el_custom,
4719     &setup.editor_cascade.el_ce,
4720     &editor_hl_custom_ptr,              &num_editor_hl_custom,
4721     &editor_el_custom_ptr,              &num_editor_el_custom
4722   },
4723   {
4724     &setup.editor.el_custom,
4725     &setup.editor_cascade.el_ge,
4726     &editor_hl_group_ptr,               &num_editor_hl_group,
4727     &editor_el_group_ptr,               &num_editor_el_group
4728   },
4729   {
4730     &setup.editor.el_custom,
4731     &setup.editor_cascade.el_ref,
4732     &editor_hl_reference_ptr,           &num_editor_hl_reference,
4733     &editor_el_reference_ptr,           &num_editor_el_reference
4734   },
4735   {
4736     &setup.editor.el_user_defined,
4737     &setup.editor_cascade.el_user,
4738     &editor_hl_user_defined_ptr,        &num_editor_hl_user_defined,
4739     &editor_el_user_defined_ptr,        &num_editor_el_user_defined
4740   },
4741   {
4742     &setup.editor.el_dynamic,
4743     &setup.editor_cascade.el_dynamic,
4744     &editor_hl_dynamic_ptr,             &num_editor_hl_dynamic,
4745     &editor_el_dynamic_ptr,             &num_editor_el_dynamic,
4746   },
4747   {
4748     &use_el_empty,
4749     &use_el_empty,
4750     &editor_hl_empty_ptr,               &num_editor_hl_empty,
4751     &editor_el_empty_ptr,               &num_editor_el_empty,
4752   },
4753   {
4754     NULL,
4755     NULL,
4756     NULL,                               NULL,
4757     NULL,                               NULL
4758   }
4759 };
4760
4761
4762 /*
4763   -----------------------------------------------------------------------------
4764   functions
4765   -----------------------------------------------------------------------------
4766 */
4767
4768 static int getMaxInfoTextLength()
4769 {
4770   return (SXSIZE / getFontWidth(FONT_TEXT_2));
4771 }
4772
4773 static int getTextWidthForGadget(char *text)
4774 {
4775   if (text == NULL)
4776     return 0;
4777
4778   return (getTextWidth(text, FONT_TEXT_1) + ED_GADGET_TEXT_DISTANCE);
4779 }
4780
4781 static int getTextWidthForDrawingArea(char *text)
4782 {
4783   if (text == NULL)
4784     return 0;
4785
4786   return (getTextWidth(text, FONT_TEXT_1) + ED_DRAWINGAREA_TEXT_DISTANCE);
4787 }
4788
4789 static int getRightGadgetBorder(struct GadgetInfo *gi, char *text)
4790 {
4791   return (gi->x + gi->width + getTextWidthForGadget(text));
4792 }
4793
4794 static char *getElementInfoText(int element)
4795 {
4796   char *info_text = NULL;
4797
4798   if (element < MAX_NUM_ELEMENTS)
4799   {
4800     if (strlen(element_info[element].description) > 0)
4801       info_text = element_info[element].description;
4802     else if (element_info[element].custom_description != NULL)
4803       info_text = element_info[element].custom_description;
4804     else if (element_info[element].editor_description != NULL)
4805       info_text = element_info[element].editor_description;
4806   }
4807
4808   if (info_text == NULL)
4809     info_text = INFOTEXT_UNKNOWN_ELEMENT;
4810
4811   return info_text;
4812 }
4813
4814 static char *getElementDescriptionFilenameExt(char *basename)
4815 {
4816   char *elements_subdir = "elements";
4817   static char *elements_subdir2 = NULL;
4818   static char *filename = NULL;
4819
4820   if (elements_subdir2 == NULL)
4821     elements_subdir2 = getPath2(DOCS_DIRECTORY, elements_subdir);
4822
4823   checked_free(filename);
4824
4825   /* 1st try: look for element description in current level set directory */
4826   filename = getPath3(getCurrentLevelDir(), elements_subdir2, basename);
4827   if (fileExists(filename))
4828     return filename;
4829
4830   free(filename);
4831
4832   /* 2nd try: look for element description in the game's base directory */
4833   filename = getPath3(options.docs_directory, elements_subdir, basename);
4834   if (fileExists(filename))
4835     return filename;
4836
4837   return NULL;
4838 }
4839
4840 char *getElementDescriptionFilename(int element)
4841 {
4842   char basename[MAX_FILENAME_LEN];
4843   char *filename;
4844
4845   /* 1st try: look for element description file for exactly this element */
4846   sprintf(basename, "%s.txt", element_info[element].token_name);
4847   filename = getElementDescriptionFilenameExt(basename);
4848   if (filename != NULL)
4849     return filename;
4850
4851   /* 2nd try: look for element description file for this element's class */
4852   sprintf(basename, "%s.txt", element_info[element].class_name);
4853   filename = getElementDescriptionFilenameExt(basename);
4854   if (filename != NULL)
4855     return filename;
4856
4857   return NULL;
4858 }
4859
4860 static void InitDynamicEditorElementList(int **elements, int *num_elements)
4861 {
4862   boolean element_found[NUM_FILE_ELEMENTS];
4863   int i, x, y;
4864
4865   /* initialize list of used elements to "not used" */
4866   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
4867     element_found[i] = FALSE;
4868
4869   /* find all elements used in current level */
4870   for (y = 0; y < lev_fieldy; y++)
4871     for (x = 0; x < lev_fieldx; x++)
4872       if (Feld[x][y] < NUM_FILE_ELEMENTS)       /* should always be true */
4873         element_found[Feld[x][y]] = TRUE;
4874
4875   *num_elements = 0;
4876
4877   /* count number of elements used in current level */
4878   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
4879     if (element_found[i])
4880       (*num_elements)++;
4881
4882   /* add space for up to 3 more elements for padding that may be needed */
4883   *num_elements += 3;
4884
4885   /* free memory for old list of elements, if needed */
4886   checked_free(*elements);
4887
4888   /* allocate memory for new list of elements */
4889   *elements = checked_malloc(*num_elements * sizeof(int));
4890
4891   *num_elements = 0;
4892
4893   /* add all elements used in current level (non-custom/group elements) */
4894   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
4895     if (element_found[i] && !(IS_CUSTOM_ELEMENT(i) || IS_GROUP_ELEMENT(i)))
4896       (*elements)[(*num_elements)++] = i;
4897
4898   /* add all elements used in current level (custom/group elements) */
4899   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
4900     if (element_found[i] && (IS_CUSTOM_ELEMENT(i) || IS_GROUP_ELEMENT(i)))
4901       (*elements)[(*num_elements)++] = i;
4902
4903   while (*num_elements % 4)     /* pad with empty elements, if needed */
4904     (*elements)[(*num_elements)++] = EL_EMPTY;
4905 }
4906
4907 static void ReinitializeElementList()
4908 {
4909   static boolean initialization_needed = TRUE;
4910   int pos = 0;
4911   int i, j;
4912
4913   if (initialization_needed)
4914   {
4915     LoadSetup_EditorCascade();          /* load last editor cascade state */
4916
4917     /* initialize editor cascade element from saved cascade state */
4918     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
4919     {
4920       int *cascade_element = &(*editor_elements_info[i].headline_list)[0];
4921       boolean cascade_value = *editor_elements_info[i].setup_cascade_value;
4922
4923       if (IS_EDITOR_CASCADE(*cascade_element))
4924         *cascade_element =
4925           (cascade_value ? EL_CASCADE_ACTIVE(*cascade_element) :
4926            EL_CASCADE_INACTIVE(*cascade_element));
4927     }
4928
4929     initialization_needed = FALSE;
4930   }
4931
4932   checked_free(editor_elements);
4933
4934   /* reload optional user defined element list for each invocation of editor */
4935   LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
4936                                    &num_editor_el_user_defined);
4937
4938   /* initialize dynamic level element list for each invocation of editor */
4939   InitDynamicEditorElementList(&editor_el_dynamic_ptr,
4940                                &num_editor_el_dynamic);
4941
4942   /* initialize list of empty elements (used for padding, if needed) */
4943   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
4944     editor_el_empty[i] = EL_EMPTY;
4945
4946   /* do some sanity checks for each element from element list */
4947   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
4948   {
4949     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
4950     {
4951       int element = (*editor_elements_info[i].element_list)[j];
4952
4953       if (element >= NUM_FILE_ELEMENTS)
4954         Error(ERR_WARN, "editor element %d is runtime element", element);
4955
4956       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
4957         Error(ERR_WARN, "no element description for element %d", element);
4958     }
4959   }
4960
4961   num_editor_elements = 0;
4962   use_el_empty = FALSE;
4963
4964   /* determine size of element list */
4965   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
4966   {
4967     boolean found_inactive_cascade = FALSE;
4968
4969     if (*editor_elements_info[i].setup_value)
4970     {
4971       if (setup.editor.el_headlines)
4972       {
4973         // required for correct padding of palette headline buttons
4974         if (*editor_elements_info[i].headline_list_size > 0)
4975           num_editor_elements += editor.palette.cols;
4976
4977         for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
4978         {
4979           int element = (*editor_elements_info[i].headline_list)[j];
4980
4981           if (IS_EDITOR_CASCADE_INACTIVE(element))
4982             found_inactive_cascade = TRUE;
4983         }
4984       }
4985
4986       if (found_inactive_cascade)
4987         continue;
4988
4989       // required for correct padding of palette element buttons
4990       int element_list_size = *editor_elements_info[i].element_list_size;
4991       int element_rows =
4992         (element_list_size + editor.palette.cols - 1) / editor.palette.cols;
4993       int element_buttons = editor.palette.cols * element_rows;
4994
4995       num_editor_elements += element_buttons;
4996     }
4997   }
4998
4999   if (num_editor_elements < ED_NUM_ELEMENTLIST_BUTTONS)
5000   {
5001     /* offer at least as many elements as element buttons exist */
5002     use_el_empty = TRUE;
5003     num_editor_el_empty = ED_NUM_ELEMENTLIST_BUTTONS - num_editor_elements;
5004
5005     num_editor_elements += num_editor_el_empty;
5006   }
5007
5008   editor_elements = checked_malloc(num_editor_elements * sizeof(int));
5009
5010   /* fill element list */
5011   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5012   {
5013     boolean found_inactive_cascade = FALSE;
5014
5015     if (*editor_elements_info[i].setup_value)
5016     {
5017       if (setup.editor.el_headlines)
5018       {
5019         // required for correct padding of palette headline buttons
5020         int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
5021                              editor.palette.cols : 0);
5022
5023         for (j = 0; j < headline_size; j++)
5024         {
5025           // use empty elements for padding of palette headline buttons
5026           int element = (j < *editor_elements_info[i].headline_list_size ?
5027                          (*editor_elements_info[i].headline_list)[j] :
5028                          editor_el_empty[0]);
5029
5030           editor_elements[pos++] = element;
5031
5032           if (IS_EDITOR_CASCADE_INACTIVE(element))
5033             found_inactive_cascade = TRUE;
5034         }
5035       }
5036
5037       if (found_inactive_cascade)
5038         continue;
5039
5040       // required for correct padding of palette element buttons
5041       int element_list_size = *editor_elements_info[i].element_list_size;
5042       int element_rows =
5043         (element_list_size + editor.palette.cols - 1) / editor.palette.cols;
5044       int element_buttons = editor.palette.cols * element_rows;
5045
5046       // copy all elements from element list
5047       for (j = 0; j < element_list_size; j++)
5048         editor_elements[pos++] = (*editor_elements_info[i].element_list)[j];
5049
5050       // use empty elements for padding of palette element buttons
5051       for (j = 0; j < element_buttons - element_list_size; j++)
5052         editor_elements[pos++] = editor_el_empty[0];
5053     }
5054   }
5055
5056   /* (this function is also called before editor gadgets are initialized!) */
5057   AdjustElementListScrollbar();
5058 }
5059
5060 void PrintEditorElementList()
5061 {
5062   boolean *stop = &setup.editor.el_user_defined;
5063   int i, j;
5064
5065   for (i = 0; editor_elements_info[i].setup_value != stop; i++)
5066   {
5067     int cascade_element = (*editor_elements_info[i].headline_list)[0];
5068
5069     if (IS_EDITOR_CASCADE(cascade_element))
5070     {
5071       int cascade_element_show = EL_CASCADE_INACTIVE(cascade_element);
5072       char *headline = element_info[cascade_element_show].editor_description;
5073
5074       printf_line_with_prefix("# ", "-", 77);
5075       printf("# %s\n", headline);
5076       printf_line_with_prefix("# ", "-", 77);
5077     }
5078
5079     for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
5080     {
5081       int element = (*editor_elements_info[i].headline_list)[j];
5082
5083       if (IS_EDITOR_CASCADE(element))
5084         element = EL_CHAR_MINUS;
5085
5086       printf("# %s\n", element_info[element].token_name);
5087     }
5088
5089     if (j > 0)
5090       printf("#\n");
5091
5092     for (j = 0; j < *editor_elements_info[i].element_list_size; j++)
5093     {
5094       int element = (*editor_elements_info[i].element_list)[j];
5095
5096       printf("# %s\n", element_info[element].token_name);
5097     }
5098
5099     if (j > 0)
5100       printf("#\n");
5101   }
5102 }
5103
5104 static void ReinitializeElementListButtons()
5105 {
5106   static boolean last_setup_value_headlines = FALSE;
5107   static boolean initialization_needed = TRUE;
5108   int i;
5109
5110   if (!initialization_needed)   /* check if editor element setup has changed */
5111   {
5112     if (last_setup_value_headlines != setup.editor.el_headlines)
5113       initialization_needed = TRUE;
5114
5115     for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5116       if (editor_elements_info[i].last_setup_value !=
5117           *editor_elements_info[i].setup_value)
5118         initialization_needed = TRUE;
5119   }
5120
5121   if (!initialization_needed)
5122     return;
5123
5124   FreeLevelEditorGadgets();
5125   CreateLevelEditorGadgets();
5126
5127   /* store current setup values for next invocation of this function */
5128   last_setup_value_headlines = setup.editor.el_headlines;
5129   for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
5130     editor_elements_info[i].last_setup_value =
5131       *editor_elements_info[i].setup_value;
5132
5133   initialization_needed = FALSE;
5134 }
5135
5136 static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
5137                               boolean input)
5138 {
5139   int border_graphic =
5140     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
5141   Bitmap *src_bitmap;
5142   int src_x, src_y;
5143   int bx = (input ? ED_ELEMENT_BORDER_INPUT : ED_ELEMENT_BORDER);
5144   int by = (input ? ED_ELEMENT_BORDER_INPUT : ED_ELEMENT_BORDER);
5145   int bx2 = TILEX - bx;
5146   int by2 = TILEY - by;
5147   int i;
5148
5149   getFixedGraphicSource(border_graphic, 0, &src_bitmap, &src_x, &src_y);
5150
5151   BlitBitmap(src_bitmap, drawto, src_x, src_y,
5152              bx, by, dest_x - bx, dest_y - by);
5153   BlitBitmap(src_bitmap, drawto, src_x + bx2, src_y,
5154              bx, by, dest_x + width, dest_y - by);
5155   BlitBitmap(src_bitmap, drawto, src_x, src_y + by2,
5156              bx, by, dest_x - bx, dest_y + height);
5157   BlitBitmap(src_bitmap, drawto, src_x + bx2, src_y + by2,
5158              bx, by, dest_x + width, dest_y + height);
5159
5160   for (i = 0; i < width / MINI_TILEX; i++)
5161   {
5162     BlitBitmap(src_bitmap, drawto, src_x + bx, src_y, MINI_TILEX, by,
5163                dest_x + i * MINI_TILEX, dest_y - by);
5164     BlitBitmap(src_bitmap, drawto, src_x + bx, src_y + by2, MINI_TILEX, by,
5165                dest_x + i * MINI_TILEX, dest_y + height);
5166   }
5167
5168   for (i = 0; i < height / MINI_TILEY; i++)
5169   {
5170     BlitBitmap(src_bitmap, drawto, src_x, src_y + by, bx, MINI_TILEY,
5171                dest_x - bx, dest_y + i * MINI_TILEY);
5172     BlitBitmap(src_bitmap, drawto, src_x + bx2, src_y + by, bx, MINI_TILEY,
5173                dest_x + width, dest_y + i * MINI_TILEY);
5174   }
5175
5176   ClearRectangle(drawto, dest_x - 1, dest_y - 1, width + 2, height + 2);
5177 }
5178
5179 static void DrawEditorElement(int x, int y, int element)
5180 {
5181   DrawSizedElement(x, y, element, ed_tilesize);
5182 }
5183
5184 static void DrawEditorElementOrWall(int x, int y, int scroll_x, int scroll_y)
5185 {
5186   DrawSizedElementOrWall(x, y, scroll_x, scroll_y, ed_tilesize);
5187 }
5188
5189 static void DrawEditorLevel(int size_x, int size_y, int scroll_x, int scroll_y)
5190 {
5191   DrawSizedLevel(size_x, size_y, scroll_x, scroll_y, ed_tilesize);
5192 }
5193
5194 static void DrawDrawingArea(int id)
5195 {
5196   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
5197   int x, y;
5198
5199   int *value = drawingarea_info[id].value;
5200   int area_xsize = drawingarea_info[id].area_xsize;
5201   int area_ysize = drawingarea_info[id].area_ysize;
5202
5203   for (x = 0; x < area_xsize; x++)
5204     for (y = 0; y < area_ysize; y++)
5205       DrawMiniGraphicExt(drawto,
5206                          gi->x + x * MINI_TILEX,
5207                          gi->y + y * MINI_TILEY,
5208                          el2edimg(value[x * area_ysize + y]));
5209 }
5210
5211 static void ScrollEditorLevel(int from_x, int from_y, int scroll)
5212 {
5213   int x, y;
5214   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
5215   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
5216
5217   BlitBitmap(drawto, drawto,
5218              SX + (dx == -1 ? ed_tilesize : 0),
5219              SY + (dy == -1 ? ed_tilesize : 0),
5220              (ed_fieldx * ed_tilesize) - (dx != 0 ? ed_tilesize : 0),
5221              (ed_fieldy * ed_tilesize) - (dy != 0 ? ed_tilesize : 0),
5222              SX + (dx == +1 ? ed_tilesize : 0),
5223              SY + (dy == +1 ? ed_tilesize : 0));
5224
5225   if (dx)
5226   {
5227     x = (dx == 1 ? 0 : ed_fieldx - 1);
5228     for (y = 0; y < ed_fieldy; y++)
5229       DrawEditorElementOrWall(x, y, from_x, from_y);
5230   }
5231   else if (dy)
5232   {
5233     y = (dy == 1 ? 0 : ed_fieldy - 1);
5234     for (x = 0; x < ed_fieldx; x++)
5235       DrawEditorElementOrWall(x, y, from_x, from_y);
5236   }
5237
5238   redraw_mask |= REDRAW_FIELD;
5239   BackToFront();
5240 }
5241
5242 void getElementListGraphicSource(int element, Bitmap **bitmap, int *x, int *y)
5243 {
5244   int graphic = el2edimg(element);
5245   int tile_size = (editor.palette.tile_size >= TILESIZE ? TILESIZE :
5246                    MINI_TILESIZE);
5247
5248   getSizedGraphicSource(graphic, 0, tile_size, bitmap, x, y);
5249 }
5250
5251 static void CreateControlButtons()
5252 {
5253   struct GadgetInfo *gi;
5254   int i;
5255
5256   /* create toolbox buttons */
5257   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
5258   {
5259     int id = controlbutton_info[i].gadget_id;
5260     int type = controlbutton_info[i].gadget_type;
5261     int graphic = controlbutton_info[i].graphic;
5262     struct XY *pos = controlbutton_info[i].pos;
5263     struct GraphicInfo *gd = &graphic_info[graphic];
5264     int gd_x1 = gd->src_x;
5265     int gd_y1 = gd->src_y;
5266     int gd_x2 = gd->src_x + gd->pressed_xoffset;
5267     int gd_y2 = gd->src_y + gd->pressed_yoffset;
5268     int gd_x1a = gd->src_x + gd->active_xoffset;
5269     int gd_y1a = gd->src_y + gd->active_yoffset;
5270     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
5271     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
5272     int x = pos->x;
5273     int y = pos->y;
5274     unsigned int event_mask;
5275     int radio_button_nr = RADIO_NR_NONE;
5276     boolean checked = FALSE;
5277
5278     if (type == GD_TYPE_RADIO_BUTTON)
5279     {
5280       event_mask = GD_EVENT_PRESSED;
5281       radio_button_nr = RADIO_NR_DRAWING_TOOLBOX;
5282
5283       if (id == drawing_function)
5284         checked = TRUE;
5285     }
5286     else
5287     {
5288       if (id == GADGET_ID_WRAP_LEFT ||
5289           id == GADGET_ID_WRAP_RIGHT ||
5290           id == GADGET_ID_WRAP_UP ||
5291           id == GADGET_ID_WRAP_DOWN)
5292         event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
5293       else
5294         event_mask = GD_EVENT_RELEASED;
5295     }
5296
5297     if (id == GADGET_ID_PROPERTIES)
5298     {
5299       x += DX;
5300       y += DY;
5301     }
5302     else
5303     {
5304       x += EX;
5305       y += EY;
5306     }
5307
5308     gi = CreateGadget(GDI_CUSTOM_ID, id,
5309                       GDI_CUSTOM_TYPE_ID, i,
5310                       GDI_INFO_TEXT, controlbutton_info[i].infotext,
5311                       GDI_X, x,
5312                       GDI_Y, y,
5313                       GDI_WIDTH, gd->width,
5314                       GDI_HEIGHT, gd->height,
5315                       GDI_TYPE, type,
5316                       GDI_STATE, GD_BUTTON_UNPRESSED,
5317                       GDI_RADIO_NR, radio_button_nr,
5318                       GDI_CHECKED, checked,
5319                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
5320                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
5321                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
5322                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
5323                       GDI_EVENT_MASK, event_mask,
5324                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
5325                       GDI_CALLBACK_ACTION, HandleControlButtons,
5326                       GDI_END);
5327
5328     if (gi == NULL)
5329       Error(ERR_EXIT, "cannot create gadget");
5330
5331     level_editor_gadget[id] = gi;
5332   }
5333
5334   /* these values are not constant, but can change at runtime */
5335   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].x    = ED_SCROLL_UP_XPOS;
5336   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_UP].y    = ED_SCROLL_UP_YPOS;
5337   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].x  = ED_SCROLL_DOWN_XPOS;
5338   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_DOWN].y  = ED_SCROLL_DOWN_YPOS;
5339   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].x  = ED_SCROLL_LEFT_XPOS;
5340   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_LEFT].y  = ED_SCROLL_LEFT_YPOS;
5341   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].x = ED_SCROLL_RIGHT_XPOS;
5342   scrollbutton_pos[ED_SCROLLBUTTON_ID_AREA_RIGHT].y = ED_SCROLL_RIGHT_YPOS;
5343   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].x    = ED_SCROLL2_UP_XPOS;
5344   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_UP].y    = ED_SCROLL2_UP_YPOS;
5345   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].x  = ED_SCROLL2_DOWN_XPOS;
5346   scrollbutton_pos[ED_SCROLLBUTTON_ID_LIST_DOWN].y  = ED_SCROLL2_DOWN_YPOS;
5347
5348   /* create buttons for scrolling of drawing area and element list */
5349   for (i = 0; i < ED_NUM_SCROLLBUTTONS; i++)
5350   {
5351     int id = scrollbutton_info[i].gadget_id;
5352     int graphic = scrollbutton_info[i].graphic;
5353     struct GraphicInfo *gd = &graphic_info[graphic];
5354     Bitmap *gd_bitmap = gd->bitmap;
5355     int gd_x1 = gd->src_x;
5356     int gd_y1 = gd->src_y;
5357     int gd_x2 = gd->src_x + gd->pressed_xoffset;
5358     int gd_y2 = gd->src_y + gd->pressed_yoffset;
5359     int width  = gd->width;
5360     int height = gd->height;
5361     int x = scrollbutton_pos[i].x;
5362     int y = scrollbutton_pos[i].y;
5363     unsigned int event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
5364
5365     if (id == GADGET_ID_SCROLL_LIST_UP ||
5366         id == GADGET_ID_SCROLL_LIST_DOWN)
5367     {
5368       x += DX;
5369       y += DY;
5370     }
5371     else
5372     {
5373       x += SX;
5374       y += SY;
5375     }
5376
5377     gi = CreateGadget(GDI_CUSTOM_ID, id,
5378                       GDI_CUSTOM_TYPE_ID, i,
5379                       GDI_INFO_TEXT, scrollbutton_info[i].infotext,
5380                       GDI_X, x,
5381                       GDI_Y, y,
5382                       GDI_WIDTH, width,
5383                       GDI_HEIGHT, height,
5384                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
5385                       GDI_STATE, GD_BUTTON_UNPRESSED,
5386                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
5387                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
5388                       GDI_EVENT_MASK, event_mask,
5389                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
5390                       GDI_CALLBACK_ACTION, HandleControlButtons,
5391                       GDI_END);
5392
5393     if (gi == NULL)
5394       Error(ERR_EXIT, "cannot create gadget");
5395
5396     level_editor_gadget[id] = gi;
5397   }
5398
5399   /* create buttons for element list */
5400   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
5401   {
5402     int id = GADGET_ID_ELEMENTLIST_FIRST + i;
5403     int graphic = IMG_EDITOR_PALETTE_BUTTON;
5404     struct GraphicInfo *gd = &graphic_info[graphic];
5405     Bitmap *gd_bitmap = gd->bitmap;
5406     Bitmap *deco_bitmap;
5407     int deco_x, deco_y, deco_xpos, deco_ypos;
5408     int gd_x1 = gd->src_x;
5409     int gd_y1 = gd->src_y;
5410     int gd_x2 = gd->src_x + gd->pressed_xoffset;
5411     int gd_y2 = gd->src_y + gd->pressed_yoffset;
5412     int xx = i % ED_ELEMENTLIST_BUTTONS_HORIZ;
5413     int yy = i / ED_ELEMENTLIST_BUTTONS_HORIZ;
5414     int x = DX + ED_ELEMENTLIST_XPOS + xx * gd->width;
5415     int y = DY + ED_ELEMENTLIST_YPOS + yy * gd->height;
5416     int element = editor_elements[i];
5417     int tile_size = (editor.palette.tile_size >= TILESIZE ? TILESIZE :
5418                      MINI_TILESIZE);
5419     unsigned int event_mask = GD_EVENT_RELEASED;
5420
5421     getElementListGraphicSource(element, &deco_bitmap, &deco_x, &deco_y);
5422     deco_xpos = (gd->width  - tile_size) / 2;
5423     deco_ypos = (gd->height - tile_size) / 2;
5424
5425     gi = CreateGadget(GDI_CUSTOM_ID, id,
5426                       GDI_CUSTOM_TYPE_ID, i,
5427                       GDI_INFO_TEXT, getElementInfoText(element),
5428                       GDI_X, x,
5429                       GDI_Y, y,
5430                       GDI_WIDTH, gd->width,
5431                       GDI_HEIGHT, gd->height,
5432                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
5433                       GDI_STATE, GD_BUTTON_UNPRESSED,
5434                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
5435                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
5436                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
5437                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
5438                       GDI_DECORATION_SIZE, tile_size, tile_size,
5439                       GDI_DECORATION_SHIFTING, 1, 1,
5440                       GDI_EVENT_MASK, event_mask,
5441                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
5442                       GDI_CALLBACK_ACTION, HandleControlButtons,
5443                       GDI_END);
5444
5445     if (gi == NULL)
5446       Error(ERR_EXIT, "cannot create gadget");
5447
5448     level_editor_gadget[id] = gi;
5449   }
5450 }
5451
5452 static void CreateCounterButtons()
5453 {
5454   int max_infotext_len = getMaxInfoTextLength();
5455   int i;
5456
5457   for (i = 0; i < ED_NUM_COUNTERBUTTONS; i++)
5458   {
5459     int j;
5460     int x = SX + counterbutton_info[i].x;       /* down count button */
5461     int y = SY + counterbutton_info[i].y;
5462
5463     /* determine horizontal position to the right of specified gadget */
5464     if (counterbutton_info[i].gadget_id_align != GADGET_ID_NONE)
5465       x = (right_gadget_border[counterbutton_info[i].gadget_id_align] +
5466            ED_GADGET_TEXT_DISTANCE);
5467
5468     /* determine horizontal offset for leading text */
5469     if (counterbutton_info[i].text_left != NULL)
5470       x += getTextWidthForGadget(counterbutton_info[i].text_left);
5471
5472     for (j = 0; j < 2; j++)
5473     {
5474       struct GadgetInfo *gi;
5475       int id = (j == 0 ?
5476                 counterbutton_info[i].gadget_id_down :
5477                 counterbutton_info[i].gadget_id_up);
5478       int graphic;
5479       struct GraphicInfo *gd;
5480       int gd_x1, gd_x2, gd_y1, gd_y2;
5481       unsigned int event_mask;
5482       char infotext[max_infotext_len + 1];
5483
5484       event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
5485
5486       if (i == ED_COUNTER_ID_SELECT_LEVEL)
5487       {
5488         graphic = (j == 0 ?
5489                    IMG_EDITOR_BUTTON_GFX_PREV_LEVEL :
5490                    IMG_EDITOR_BUTTON_GFX_NEXT_LEVEL);
5491
5492         event_mask |= GD_EVENT_RELEASED;
5493
5494         if (j == 0)
5495         {
5496           x = DX + editor.button.prev_level.x;
5497           y = DY + editor.button.prev_level.y;
5498         }
5499         else
5500         {
5501           x = DX + editor.button.next_level.x;
5502           y = DY + editor.button.next_level.y;
5503         }
5504       }
5505       else
5506       {
5507         graphic = (j == 0 ?
5508                    IMG_EDITOR_COUNTER_DOWN :
5509                    IMG_EDITOR_COUNTER_UP);
5510       }
5511
5512       gd = &graphic_info[graphic];
5513
5514       gd_x1 = gd->src_x;
5515       gd_y1 = gd->src_y;
5516       gd_x2 = gd->src_x + gd->pressed_xoffset;
5517       gd_y2 = gd->src_y + gd->pressed_yoffset;
5518
5519       sprintf(infotext, "%s counter value by 1, 5 or 10",
5520               (j == 0 ? "decrease" : "increase"));
5521
5522       gi = CreateGadget(GDI_CUSTOM_ID, id,
5523                         GDI_CUSTOM_TYPE_ID, i,
5524                         GDI_INFO_TEXT, infotext,
5525                         GDI_X, x,
5526                         GDI_Y, y,
5527                         GDI_WIDTH, gd->width,
5528                         GDI_HEIGHT, gd->height,
5529                         GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
5530                         GDI_STATE, GD_BUTTON_UNPRESSED,
5531                         GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
5532                         GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
5533                         GDI_EVENT_MASK, event_mask,
5534                         GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
5535                         GDI_CALLBACK_ACTION, HandleCounterButtons,
5536                         GDI_END);
5537
5538       if (gi == NULL)
5539         Error(ERR_EXIT, "cannot create gadget");
5540
5541       level_editor_gadget[id] = gi;
5542       right_gadget_border[id] =
5543         getRightGadgetBorder(gi, counterbutton_info[i].text_right);
5544
5545       x += gi->width + ED_GADGET_DISTANCE;      /* text count button */
5546
5547       if (j == 0)
5548       {
5549         int font_type = FONT_INPUT_1;
5550         int font_type_active = FONT_INPUT_1_ACTIVE;
5551
5552         id = counterbutton_info[i].gadget_id_text;
5553
5554         event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
5555
5556         if (i == ED_COUNTER_ID_SELECT_LEVEL)
5557         {
5558           graphic = IMG_EDITOR_INPUT_GFX_LEVEL_NUMBER;
5559
5560           font_type = FONT_LEVEL_NUMBER;
5561           font_type_active = FONT_LEVEL_NUMBER_ACTIVE;
5562
5563           x = DX + editor.input.level_number.x;
5564           y = DY + editor.input.level_number.y;
5565         }
5566         else
5567         {
5568           graphic = IMG_EDITOR_COUNTER_INPUT;
5569         }
5570
5571         gd = &graphic_info[graphic];
5572
5573         gd_x1 = gd->src_x;
5574         gd_y1 = gd->src_y;
5575         gd_x2 = gd->src_x + gd->active_xoffset;
5576         gd_y2 = gd->src_y + gd->active_yoffset;
5577
5578         gi = CreateGadget(GDI_CUSTOM_ID, id,
5579                           GDI_CUSTOM_TYPE_ID, i,
5580                           GDI_INFO_TEXT, "enter counter value",
5581                           GDI_X, x,
5582                           GDI_Y, y,
5583                           GDI_TYPE, GD_TYPE_TEXT_INPUT_NUMERIC,
5584                           GDI_NUMBER_VALUE, 0,
5585                           GDI_NUMBER_MIN, counterbutton_info[i].min_value,
5586                           GDI_NUMBER_MAX, counterbutton_info[i].max_value,
5587                           GDI_TEXT_SIZE, 3,     /* minimal counter text size */
5588                           GDI_TEXT_FONT, font_type,
5589                           GDI_TEXT_FONT_ACTIVE, font_type_active,
5590                           GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
5591                           GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
5592                           GDI_BORDER_SIZE, gd->border_size, gd->border_size,
5593                           GDI_DESIGN_WIDTH, gd->width,
5594                           GDI_EVENT_MASK, event_mask,
5595                           GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
5596                           GDI_CALLBACK_ACTION, HandleCounterButtons,
5597                           GDI_END);
5598
5599         if (gi == NULL)
5600           Error(ERR_EXIT, "cannot create gadget");
5601
5602         level_editor_gadget[id] = gi;
5603         right_gadget_border[id] =
5604           getRightGadgetBorder(gi, counterbutton_info[i].text_right);
5605
5606         x += gi->width + ED_GADGET_DISTANCE;    /* up count button */
5607       }
5608     }
5609   }
5610 }
5611
5612 static void CreateDrawingAreas()
5613 {
5614   int i;
5615
5616   /* these values are not constant, but can change at runtime */
5617   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_xsize = MAX_ED_FIELDX;
5618   drawingarea_info[ED_DRAWING_ID_DRAWING_LEVEL].area_ysize = MAX_ED_FIELDY;
5619
5620   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
5621   {
5622     struct GadgetInfo *gi;
5623     unsigned int event_mask;
5624     int id = drawingarea_info[i].gadget_id;
5625     int x = SX + drawingarea_info[i].x;
5626     int y = SY + drawingarea_info[i].y;
5627     int area_xsize = drawingarea_info[i].area_xsize;
5628     int area_ysize = drawingarea_info[i].area_ysize;
5629
5630     event_mask =
5631       GD_EVENT_PRESSED | GD_EVENT_RELEASED | GD_EVENT_MOVING |
5632       GD_EVENT_OFF_BORDERS;
5633
5634     /* determine horizontal position to the right of specified gadget */
5635     if (drawingarea_info[i].gadget_id_align != GADGET_ID_NONE)
5636       x = (right_gadget_border[drawingarea_info[i].gadget_id_align] +
5637            ED_DRAWINGAREA_TEXT_DISTANCE);
5638
5639     /* determine horizontal offset for leading text */
5640     if (drawingarea_info[i].text_left != NULL)
5641       x += getTextWidthForDrawingArea(drawingarea_info[i].text_left);
5642
5643     gi = CreateGadget(GDI_CUSTOM_ID, id,
5644                       GDI_CUSTOM_TYPE_ID, i,
5645                       GDI_X, x,
5646                       GDI_Y, y,
5647                       GDI_TYPE, GD_TYPE_DRAWING_AREA,
5648                       GDI_AREA_SIZE, area_xsize, area_ysize,
5649                       GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
5650                       GDI_EVENT_MASK, event_mask,
5651                       GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
5652                       GDI_CALLBACK_ACTION, HandleDrawingAreas,
5653                       GDI_END);
5654
5655     if (gi == NULL)
5656       Error(ERR_EXIT, "cannot create gadget");
5657
5658     level_editor_gadget[id] = gi;
5659     right_gadget_border[id] =
5660       getRightGadgetBorder(gi, drawingarea_info[i].text_right);
5661   }
5662 }
5663
5664 static void CreateTextInputGadgets()
5665 {
5666   int max_infotext_len = getMaxInfoTextLength();
5667   int i;
5668
5669   for (i = 0; i < ED_NUM_TEXTINPUT; i++)
5670   {
5671     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXT];
5672     int gd_x1 = gd->src_x;
5673     int gd_y1 = gd->src_y;
5674     int gd_x2 = gd->src_x + gd->active_xoffset;
5675     int gd_y2 = gd->src_y + gd->active_yoffset;
5676     struct GadgetInfo *gi;
5677     unsigned int event_mask;
5678     char infotext[MAX_OUTPUT_LINESIZE + 1];
5679     int id = textinput_info[i].gadget_id;
5680
5681     event_mask = GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
5682
5683     sprintf(infotext, "Enter %s", textinput_info[i].infotext);
5684     infotext[max_infotext_len] = '\0';
5685
5686     gi = CreateGadget(GDI_CUSTOM_ID, id,
5687                       GDI_CUSTOM_TYPE_ID, i,
5688                       GDI_INFO_TEXT, infotext,
5689                       GDI_X, SX + textinput_info[i].x,
5690                       GDI_Y, SY + textinput_info[i].y,
5691                       GDI_TYPE, GD_TYPE_TEXT_INPUT_ALPHANUMERIC,
5692                       GDI_TEXT_VALUE, textinput_info[i].value,
5693                       GDI_TEXT_SIZE, textinput_info[i].size,
5694                       GDI_TEXT_FONT, FONT_INPUT_1,
5695                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
5696                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
5697                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
5698                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
5699                       GDI_DESIGN_WIDTH, gd->width,
5700                       GDI_EVENT_MASK, event_mask,
5701                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
5702                       GDI_CALLBACK_ACTION, HandleTextInputGadgets,
5703                       GDI_END);
5704
5705     if (gi == NULL)
5706       Error(ERR_EXIT, "cannot create gadget");
5707
5708     level_editor_gadget[id] = gi;
5709   }
5710 }
5711
5712 static void CreateTextAreaGadgets()
5713 {
5714   int max_infotext_len = getMaxInfoTextLength();
5715   int i;
5716
5717   for (i = 0; i < ED_NUM_TEXTAREAS; i++)
5718   {
5719     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_INPUT_TEXTAREA];
5720     int gd_x1 = gd->src_x;
5721     int gd_y1 = gd->src_y;
5722     int gd_x2 = gd->src_x + gd->active_xoffset;
5723     int gd_y2 = gd->src_y + gd->active_yoffset;
5724     struct GadgetInfo *gi;
5725     unsigned int event_mask;
5726     char infotext[MAX_OUTPUT_LINESIZE + 1];
5727     int id = textarea_info[i].gadget_id;
5728     int area_xsize = textarea_info[i].xsize;
5729     int area_ysize = textarea_info[i].ysize;
5730
5731     event_mask = GD_EVENT_TEXT_LEAVING;
5732
5733     sprintf(infotext, "Enter %s", textarea_info[i].infotext);
5734     infotext[max_infotext_len] = '\0';
5735
5736     gi = CreateGadget(GDI_CUSTOM_ID, id,
5737                       GDI_CUSTOM_TYPE_ID, i,
5738                       GDI_INFO_TEXT, infotext,
5739                       GDI_X, SX + textarea_info[i].x,
5740                       GDI_Y, SY + textarea_info[i].y,
5741                       GDI_TYPE, GD_TYPE_TEXT_AREA,
5742                       GDI_AREA_SIZE, area_xsize, area_ysize,
5743                       GDI_TEXT_FONT, FONT_INPUT_1,
5744                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
5745                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
5746                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
5747                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
5748                       GDI_DESIGN_WIDTH, gd->width,
5749                       GDI_EVENT_MASK, event_mask,
5750                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
5751                       GDI_CALLBACK_ACTION, HandleTextAreaGadgets,
5752                       GDI_END);
5753
5754     if (gi == NULL)
5755       Error(ERR_EXIT, "cannot create gadget");
5756
5757     level_editor_gadget[id] = gi;
5758   }
5759 }
5760
5761 static void CreateSelectboxGadgets()
5762 {
5763   int max_infotext_len = getMaxInfoTextLength();
5764   int i, j;
5765
5766   for (i = 0; i < ED_NUM_SELECTBOX; i++)
5767   {
5768     struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_SELECTBOX_INPUT];
5769     struct GraphicInfo *gd2 = &graphic_info[IMG_EDITOR_SELECTBOX_BUTTON];
5770     int gd_x1 = gd->src_x;
5771     int gd_y1 = gd->src_y;
5772     int gd_x2 = gd->src_x + gd->active_xoffset;
5773     int gd_y2 = gd->src_y + gd->active_yoffset;
5774     int selectbox_button_xsize = gd2->width;
5775     struct GadgetInfo *gi;
5776     unsigned int event_mask;
5777     char infotext[MAX_OUTPUT_LINESIZE + 1];
5778     int id = selectbox_info[i].gadget_id;
5779     int x = SX + selectbox_info[i].x;
5780     int y = SY + selectbox_info[i].y;
5781
5782     if (selectbox_info[i].size == -1)   /* dynamically determine size */
5783     {
5784       /* (we cannot use -1 for uninitialized values if we directly compare
5785          with results from strlen(), because the '<' and '>' operation will
5786          implicitely cast -1 to an unsigned integer value!) */
5787       selectbox_info[i].size = 0;
5788
5789       for (j = 0; selectbox_info[i].options[j].text != NULL; j++)
5790         if (strlen(selectbox_info[i].options[j].text) > selectbox_info[i].size)
5791           selectbox_info[i].size = strlen(selectbox_info[i].options[j].text);
5792
5793       selectbox_info[i].size++;         /* add one character empty space */
5794     }
5795
5796     event_mask = GD_EVENT_RELEASED |
5797       GD_EVENT_TEXT_RETURN | GD_EVENT_TEXT_LEAVING;
5798
5799     /* determine horizontal position to the right of specified gadget */
5800     if (selectbox_info[i].gadget_id_align != GADGET_ID_NONE)
5801       x = (right_gadget_border[selectbox_info[i].gadget_id_align] +
5802            ED_GADGET_TEXT_DISTANCE);
5803
5804     /* determine horizontal offset for leading text */
5805     if (selectbox_info[i].text_left != NULL)
5806       x += getTextWidthForGadget(selectbox_info[i].text_left);
5807
5808     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
5809     infotext[max_infotext_len] = '\0';
5810
5811     gi = CreateGadget(GDI_CUSTOM_ID, id,
5812                       GDI_CUSTOM_TYPE_ID, i,
5813                       GDI_INFO_TEXT, infotext,
5814                       GDI_X, x,
5815                       GDI_Y, y,
5816                       GDI_TYPE, GD_TYPE_SELECTBOX,
5817                       GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
5818                       GDI_SELECTBOX_CHAR_UNSELECTABLE, '[',
5819                       GDI_TEXT_SIZE, selectbox_info[i].size,
5820                       GDI_TEXT_FONT, FONT_INPUT_1,
5821                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
5822                       GDI_TEXT_FONT_UNSELECTABLE, FONT_TEXT_1,
5823                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
5824                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
5825                       GDI_BORDER_SIZE, gd->border_size, gd->border_size,
5826                       GDI_BORDER_SIZE_SELECTBUTTON, selectbox_button_xsize,
5827                       GDI_DESIGN_WIDTH, gd->width,
5828                       GDI_EVENT_MASK, event_mask,
5829                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
5830                       GDI_CALLBACK_ACTION, HandleSelectboxGadgets,
5831                       GDI_END);
5832
5833     if (gi == NULL)
5834       Error(ERR_EXIT, "cannot create gadget");
5835
5836     level_editor_gadget[id] = gi;
5837     right_gadget_border[id] =
5838       getRightGadgetBorder(gi, selectbox_info[i].text_right);
5839   }
5840 }
5841
5842 static void CreateTextbuttonGadgets()
5843 {
5844   int max_infotext_len = getMaxInfoTextLength();
5845   int i;
5846
5847   for (i = 0; i < ED_NUM_TEXTBUTTONS; i++)
5848   {
5849     int id = textbutton_info[i].gadget_id;
5850     int graphic =
5851       ((id >= GADGET_ID_LEVELINFO_LEVEL && id <= GADGET_ID_LEVELINFO_EDITOR) ||
5852        (id >= GADGET_ID_PROPERTIES_INFO && id <= GADGET_ID_PROPERTIES_CHANGE) ?
5853        IMG_EDITOR_TABBUTTON : IMG_EDITOR_TEXTBUTTON);
5854     struct GraphicInfo *gd = &graphic_info[graphic];
5855     int gd_x1 = gd->src_x;
5856     int gd_y1 = gd->src_y;
5857     int gd_x2 = gd->src_x + gd->pressed_xoffset;
5858     int gd_y2 = gd->src_y + gd->pressed_yoffset;
5859     int gd_x1a = gd->src_x + gd->active_xoffset;
5860     int gd_y1a = gd->src_y + gd->active_yoffset;
5861     int border_xsize = gd->border_size + gd->draw_xoffset;
5862     int border_ysize = gd->border_size;
5863     struct GadgetInfo *gi;
5864     unsigned int event_mask;
5865     char infotext[MAX_OUTPUT_LINESIZE + 1];
5866     int x = SX + textbutton_info[i].x;
5867     int y = SY + textbutton_info[i].y;
5868
5869     if (textbutton_info[i].size == -1)  /* dynamically determine size */
5870       textbutton_info[i].size = strlen(textbutton_info[i].text);
5871
5872     event_mask = GD_EVENT_RELEASED;
5873
5874     sprintf(infotext, "%s", textbutton_info[i].infotext);
5875     infotext[max_infotext_len] = '\0';
5876
5877     /* determine horizontal position to the right of specified gadget */
5878     if (textbutton_info[i].gadget_id_align != GADGET_ID_NONE)
5879       x = (right_gadget_border[textbutton_info[i].gadget_id_align] +
5880            ED_GADGET_TEXT_DISTANCE);
5881
5882     /* determine horizontal offset for leading text */
5883     if (textbutton_info[i].text_left != NULL)
5884       x += getTextWidthForGadget(textbutton_info[i].text_left);
5885
5886     gi = CreateGadget(GDI_CUSTOM_ID, id,
5887                       GDI_CUSTOM_TYPE_ID, i,
5888                       GDI_INFO_TEXT, infotext,
5889                       GDI_X, x,
5890                       GDI_Y, y,
5891                       GDI_TYPE, GD_TYPE_TEXT_BUTTON,
5892                       GDI_TEXT_VALUE, textbutton_info[i].text,
5893                       GDI_TEXT_SIZE, textbutton_info[i].size,
5894                       GDI_TEXT_FONT, FONT_INPUT_2_ACTIVE,
5895                       GDI_TEXT_FONT_ACTIVE, FONT_INPUT_2,
5896                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
5897                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
5898                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
5899                       GDI_BORDER_SIZE, border_xsize, border_ysize,
5900                       GDI_DESIGN_WIDTH, gd->width,
5901                       GDI_DECORATION_SHIFTING, 1, 1,
5902                       GDI_EVENT_MASK, event_mask,
5903                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
5904                       GDI_CALLBACK_ACTION, HandleTextbuttonGadgets,
5905                       GDI_END);
5906
5907     if (gi == NULL)
5908       Error(ERR_EXIT, "cannot create gadget");
5909
5910     level_editor_gadget[id] = gi;
5911     right_gadget_border[id] =
5912       getRightGadgetBorder(gi, textbutton_info[i].text_right);
5913   }
5914 }
5915
5916 static void CreateGraphicbuttonGadgets()
5917 {
5918   struct GadgetInfo *gi;
5919   unsigned int event_mask;
5920   int i;
5921
5922   /* create buttons for scrolling of drawing area and element list */
5923   for (i = 0; i < ED_NUM_GRAPHICBUTTONS; i++)
5924   {
5925     int id = graphicbutton_info[i].gadget_id;
5926     int x = SX + graphicbutton_info[i].x;
5927     int y = SY + graphicbutton_info[i].y;
5928     struct GraphicInfo *gd = &graphic_info[graphicbutton_info[i].graphic];
5929     int gd_x1 = gd->src_x;
5930     int gd_y1 = gd->src_y;
5931     int gd_x2 = gd->src_x + gd->pressed_xoffset;
5932     int gd_y2 = gd->src_y + gd->pressed_yoffset;
5933
5934     event_mask = GD_EVENT_PRESSED | GD_EVENT_REPEATED;
5935
5936     /* determine horizontal position to the right of specified gadget */
5937     if (graphicbutton_info[i].gadget_id_align != GADGET_ID_NONE)
5938       x = (right_gadget_border[graphicbutton_info[i].gadget_id_align] +
5939            ED_GADGET_TEXT_DISTANCE);
5940
5941     /* determine horizontal offset for leading text */
5942     if (graphicbutton_info[i].text_left != NULL)
5943       x += getTextWidthForGadget(graphicbutton_info[i].text_left);
5944
5945     gi = CreateGadget(GDI_CUSTOM_ID, id,
5946                       GDI_CUSTOM_TYPE_ID, i,
5947                       GDI_INFO_TEXT, graphicbutton_info[i].infotext,
5948                       GDI_X, x,
5949                       GDI_Y, y,
5950                       GDI_WIDTH, gd->width,
5951                       GDI_HEIGHT, gd->height,
5952                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
5953                       GDI_STATE, GD_BUTTON_UNPRESSED,
5954                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
5955                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
5956                       GDI_EVENT_MASK, event_mask,
5957                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
5958                       GDI_CALLBACK_ACTION, HandleGraphicbuttonGadgets,
5959                       GDI_END);
5960
5961     if (gi == NULL)
5962       Error(ERR_EXIT, "cannot create gadget");
5963
5964     level_editor_gadget[id] = gi;
5965     right_gadget_border[id] =
5966       getRightGadgetBorder(gi, graphicbutton_info[i].text_right);
5967   }
5968 }
5969
5970 static void CreateScrollbarGadgets()
5971 {
5972   int i;
5973
5974   /* these values are not constant, but can change at runtime */
5975   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].x =
5976     SX + ED_SCROLL_HORIZONTAL_XPOS;
5977   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].y =
5978     SY + ED_SCROLL_HORIZONTAL_YPOS;
5979   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].width =
5980     ED_SCROLL_HORIZONTAL_XSIZE;
5981   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].height =
5982     ED_SCROLL_HORIZONTAL_YSIZE;
5983   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_x      = SX;
5984   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_y      = SY;
5985   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_width  = SXSIZE;
5986   scrollbar_pos[ED_SCROLLBAR_ID_AREA_HORIZONTAL].wheel_height = SYSIZE;
5987
5988   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].x =
5989     SX + ED_SCROLL_VERTICAL_XPOS;
5990   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].y =
5991     SY + ED_SCROLL_VERTICAL_YPOS;
5992   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].width =
5993     ED_SCROLL_VERTICAL_XSIZE;
5994   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].height =
5995     ED_SCROLL_VERTICAL_YSIZE;
5996   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_x      = SX;
5997   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_y      = SY;
5998   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_width  = SXSIZE;
5999   scrollbar_pos[ED_SCROLLBAR_ID_AREA_VERTICAL].wheel_height = SYSIZE;
6000
6001   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].x =
6002     DX + ED_SCROLL2_VERTICAL_XPOS;
6003   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].y =
6004     DY + ED_SCROLL2_VERTICAL_YPOS;
6005   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].width =
6006     ED_SCROLL2_VERTICAL_XSIZE;
6007   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].height =
6008     ED_SCROLL2_VERTICAL_YSIZE;
6009   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_x = DX;
6010   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_y = DY;
6011   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_width  = DXSIZE;
6012   scrollbar_pos[ED_SCROLLBAR_ID_LIST_VERTICAL].wheel_height = DYSIZE;
6013
6014   for (i = 0; i < ED_NUM_SCROLLBARS; i++)
6015   {
6016     int id = scrollbar_info[i].gadget_id;
6017     int graphic = scrollbar_info[i].graphic;
6018     struct GraphicInfo *gd = &graphic_info[graphic];
6019     Bitmap *gd_bitmap = gd->bitmap;
6020     int gd_x1, gd_x2, gd_y1, gd_y2;
6021     struct GadgetInfo *gi;
6022     int items_max, items_visible, item_position;
6023     unsigned int event_mask;
6024
6025     if (i == ED_SCROLLBAR_ID_LIST_VERTICAL)
6026     {
6027       items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
6028       items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
6029       item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
6030     }
6031     else        /* drawing area scrollbars */
6032     {
6033       if (scrollbar_info[i].type == GD_TYPE_SCROLLBAR_HORIZONTAL)
6034       {
6035         items_max = MAX(lev_fieldx + 2, ed_fieldx);
6036         items_visible = ed_fieldx;
6037         item_position = 0;
6038       }
6039       else
6040       {
6041         items_max = MAX(lev_fieldy + 2, ed_fieldy);
6042         items_visible = ed_fieldy;
6043         item_position = 0;
6044       }
6045     }
6046
6047     event_mask = GD_EVENT_MOVING | GD_EVENT_OFF_BORDERS;
6048
6049     gd_x1 = gd->src_x;
6050     gd_y1 = gd->src_y;
6051     gd_x2 = gd->src_x + gd->pressed_xoffset;
6052     gd_y2 = gd->src_y + gd->pressed_yoffset;
6053
6054     gi = CreateGadget(GDI_CUSTOM_ID, id,
6055                       GDI_CUSTOM_TYPE_ID, i,
6056                       GDI_INFO_TEXT, scrollbar_info[i].infotext,
6057                       GDI_X, scrollbar_pos[i].x,
6058                       GDI_Y, scrollbar_pos[i].y,
6059                       GDI_WIDTH, scrollbar_pos[i].width,
6060                       GDI_HEIGHT, scrollbar_pos[i].height,
6061                       GDI_TYPE, scrollbar_info[i].type,
6062                       GDI_SCROLLBAR_ITEMS_MAX, items_max,
6063                       GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
6064                       GDI_SCROLLBAR_ITEM_POSITION, item_position,
6065                       GDI_WHEEL_AREA_X, scrollbar_pos[i].wheel_x,
6066                       GDI_WHEEL_AREA_Y, scrollbar_pos[i].wheel_y,
6067                       GDI_WHEEL_AREA_WIDTH, scrollbar_pos[i].wheel_width,
6068                       GDI_WHEEL_AREA_HEIGHT, scrollbar_pos[i].wheel_height,
6069                       GDI_STATE, GD_BUTTON_UNPRESSED,
6070                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y1,
6071                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y2,
6072                       GDI_BORDER_SIZE, ED_BORDER_SIZE, ED_BORDER_SIZE,
6073                       GDI_EVENT_MASK, event_mask,
6074                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6075                       GDI_CALLBACK_ACTION, HandleControlButtons,
6076                       GDI_END);
6077
6078     if (gi == NULL)
6079       Error(ERR_EXIT, "cannot create gadget");
6080
6081     level_editor_gadget[id] = gi;
6082   }
6083 }
6084
6085 static void CreateCheckbuttonGadgets()
6086 {
6087   struct GadgetInfo *gi;
6088   unsigned int event_mask;
6089   int i;
6090
6091   event_mask = GD_EVENT_PRESSED;
6092
6093   for (i = 0; i < ED_NUM_CHECKBUTTONS; i++)
6094   {
6095     int id = checkbutton_info[i].gadget_id;
6096     int graphic = (id == GADGET_ID_STICK_ELEMENT ? IMG_EDITOR_STICKYBUTTON :
6097                    IMG_EDITOR_CHECKBOX);
6098     struct GraphicInfo *gd = &graphic_info[graphic];
6099     int gd_x1 = gd->src_x;
6100     int gd_y1 = gd->src_y;
6101     int gd_x2 = gd->src_x + gd->pressed_xoffset;
6102     int gd_y2 = gd->src_y + gd->pressed_yoffset;
6103     int gd_x1a = gd->src_x + gd->active_xoffset;
6104     int gd_y1a = gd->src_y + gd->active_yoffset;
6105     int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
6106     int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
6107     int x = SX + checkbutton_info[i].x;
6108     int y = SY + checkbutton_info[i].y;
6109
6110     /* determine horizontal position to the right of specified gadget */
6111     if (checkbutton_info[i].gadget_id_align != GADGET_ID_NONE)
6112       x = (right_gadget_border[checkbutton_info[i].gadget_id_align] +
6113            ED_GADGET_TEXT_DISTANCE);
6114
6115     /* determine horizontal offset for leading text */
6116     if (checkbutton_info[i].text_left != NULL)
6117       x += getTextWidthForGadget(checkbutton_info[i].text_left);
6118
6119     gi = CreateGadget(GDI_CUSTOM_ID, id,
6120                       GDI_CUSTOM_TYPE_ID, i,
6121                       GDI_INFO_TEXT, checkbutton_info[i].infotext,
6122                       GDI_X, x,
6123                       GDI_Y, y,
6124                       GDI_WIDTH, gd->width,
6125                       GDI_HEIGHT, gd->height,
6126                       GDI_TYPE, GD_TYPE_CHECK_BUTTON,
6127                       GDI_CHECKED, *checkbutton_info[i].value,
6128                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6129                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6130                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
6131                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
6132                       GDI_EVENT_MASK, event_mask,
6133                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6134                       GDI_CALLBACK_ACTION, HandleCheckbuttons,
6135                       GDI_END);
6136
6137     if (gi == NULL)
6138       Error(ERR_EXIT, "cannot create gadget");
6139
6140     level_editor_gadget[id] = gi;
6141     right_gadget_border[id] =
6142       getRightGadgetBorder(gi, checkbutton_info[i].text_right);
6143   }
6144 }
6145
6146 static void CreateRadiobuttonGadgets()
6147 {
6148   struct GraphicInfo *gd = &graphic_info[IMG_EDITOR_RADIOBUTTON];
6149   int gd_x1 = gd->src_x;
6150   int gd_y1 = gd->src_y;
6151   int gd_x2 = gd->src_x + gd->pressed_xoffset;
6152   int gd_y2 = gd->src_y + gd->pressed_yoffset;
6153   int gd_x1a = gd->src_x + gd->active_xoffset;
6154   int gd_y1a = gd->src_y + gd->active_yoffset;
6155   int gd_x2a = gd->src_x + gd->active_xoffset + gd->pressed_xoffset;
6156   int gd_y2a = gd->src_y + gd->active_yoffset + gd->pressed_yoffset;
6157   struct GadgetInfo *gi;
6158   unsigned int event_mask;
6159   int i;
6160
6161   event_mask = GD_EVENT_PRESSED;
6162
6163   for (i = 0; i < ED_NUM_RADIOBUTTONS; i++)
6164   {
6165     int id = radiobutton_info[i].gadget_id;
6166     int x = SX + radiobutton_info[i].x;
6167     int y = SY + radiobutton_info[i].y;
6168
6169     int checked =
6170       (*radiobutton_info[i].value == radiobutton_info[i].checked_value);
6171
6172     /* determine horizontal position to the right of specified gadget */
6173     if (radiobutton_info[i].gadget_id_align != GADGET_ID_NONE)
6174       x = (right_gadget_border[radiobutton_info[i].gadget_id_align] +
6175            ED_GADGET_TEXT_DISTANCE);
6176
6177     /* determine horizontal offset for leading text */
6178     if (radiobutton_info[i].text_left != NULL)
6179       x += getTextWidthForGadget(radiobutton_info[i].text_left);
6180
6181     gi = CreateGadget(GDI_CUSTOM_ID, id,
6182                       GDI_CUSTOM_TYPE_ID, i,
6183                       GDI_INFO_TEXT, radiobutton_info[i].infotext,
6184                       GDI_X, x,
6185                       GDI_Y, y,
6186                       GDI_WIDTH, gd->width,
6187                       GDI_HEIGHT, gd->height,
6188                       GDI_TYPE, GD_TYPE_RADIO_BUTTON,
6189                       GDI_RADIO_NR, radiobutton_info[i].radio_button_nr,
6190                       GDI_CHECKED, checked,
6191                       GDI_DESIGN_UNPRESSED, gd->bitmap, gd_x1, gd_y1,
6192                       GDI_DESIGN_PRESSED, gd->bitmap, gd_x2, gd_y2,
6193                       GDI_ALT_DESIGN_UNPRESSED, gd->bitmap, gd_x1a, gd_y1a,
6194                       GDI_ALT_DESIGN_PRESSED, gd->bitmap, gd_x2a, gd_y2a,
6195                       GDI_EVENT_MASK, event_mask,
6196                       GDI_CALLBACK_INFO, HandleEditorGadgetInfoText,
6197                       GDI_CALLBACK_ACTION, HandleRadiobuttons,
6198                       GDI_END);
6199
6200     if (gi == NULL)
6201       Error(ERR_EXIT, "cannot create gadget");
6202
6203     level_editor_gadget[id] = gi;
6204     right_gadget_border[id] =
6205       getRightGadgetBorder(gi, radiobutton_info[i].text_right);
6206   }
6207 }
6208
6209 void CreateLevelEditorGadgets()
6210 {
6211   int old_game_status = game_status;
6212
6213   /* setting 'game_status' is needed to get the right fonts for the editor */
6214   game_status = GAME_MODE_EDITOR;
6215
6216   /* these values are not constant, but can change at runtime */
6217   ed_fieldx = MAX_ED_FIELDX - 1;
6218   ed_fieldy = MAX_ED_FIELDY - 1;
6219
6220   num_editor_gadgets = NUM_EDITOR_GADGETS;
6221
6222   // printf("::: allocating %d gadgets ...\n", num_editor_gadgets);
6223
6224   level_editor_gadget =
6225     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
6226   right_gadget_border =
6227     checked_calloc(num_editor_gadgets * sizeof(int));
6228
6229   editor_el_empty = checked_calloc(ED_NUM_ELEMENTLIST_BUTTONS * sizeof(int));
6230   editor_el_empty_ptr = editor_el_empty;
6231
6232   ReinitializeElementList();
6233
6234   CreateControlButtons();
6235   CreateScrollbarGadgets();
6236
6237   /* order of function calls is important because of cross-references */
6238   CreateCheckbuttonGadgets();
6239   CreateCounterButtons();
6240   CreateRadiobuttonGadgets();
6241   CreateTextInputGadgets();
6242   CreateTextAreaGadgets();
6243   CreateSelectboxGadgets();
6244   CreateGraphicbuttonGadgets();
6245   CreateTextbuttonGadgets();
6246   CreateDrawingAreas();
6247
6248   game_status = old_game_status;
6249 }
6250
6251 void FreeLevelEditorGadgets()
6252 {
6253   int i;
6254
6255   // printf("::: freeing %d gadgets ...\n", num_editor_gadgets);
6256
6257   for (i = 0; i < num_editor_gadgets; i++)
6258   {
6259     FreeGadget(level_editor_gadget[i]);
6260
6261     level_editor_gadget[i] = NULL;
6262   }
6263
6264   checked_free(level_editor_gadget);
6265   checked_free(right_gadget_border);
6266
6267   checked_free(editor_el_empty);
6268 }
6269
6270 static void MapCounterButtons(int id)
6271 {
6272   int gadget_id_down = counterbutton_info[id].gadget_id_down;
6273   int gadget_id_text = counterbutton_info[id].gadget_id_text;
6274   int gadget_id_up   = counterbutton_info[id].gadget_id_up;
6275   struct GadgetInfo *gi_down = level_editor_gadget[gadget_id_down];
6276   struct GadgetInfo *gi_text = level_editor_gadget[gadget_id_text];
6277   struct GadgetInfo *gi_up   = level_editor_gadget[gadget_id_up];
6278   int xoffset_left = getTextWidthForGadget(counterbutton_info[id].text_left);
6279   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
6280   int yoffset_above = MINI_TILEX + ED_GADGET_DISTANCE;
6281   int yoffset = ED_BORDER_SIZE;
6282   int x_left = gi_down->x - xoffset_left;
6283   int x_right;  /* set after gadget position was modified */
6284   int y_above = gi_down->y - yoffset_above;
6285   int x = gi_down->x;
6286   int y;        /* set after gadget position was modified */
6287
6288   /* counter limits must be changed first to prevent value truncation */
6289   ModifyEditorCounterLimits(id, counterbutton_info[id].min_value,
6290                             counterbutton_info[id].max_value);
6291
6292   /* right text position might have changed after setting position above */
6293   x_right = gi_up->x + gi_up->width + xoffset_right;
6294
6295   ModifyEditorCounterValue(id, *counterbutton_info[id].value);
6296
6297   /* set position for "value[1,2,3,4]" counter gadgets (score in most cases) */
6298   if (id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
6299       id <= ED_COUNTER_ID_ELEMENT_VALUE4)
6300   {
6301     ModifyGadget(gi_down, GDI_Y, SY + counterbutton_info[id].y, GDI_END);
6302     ModifyGadget(gi_text, GDI_Y, SY + counterbutton_info[id].y, GDI_END);
6303     ModifyGadget(gi_up,   GDI_Y, SY + counterbutton_info[id].y, GDI_END);
6304   }
6305
6306   /* vertical position might have changed after setting position above */
6307   y = gi_up->y + yoffset;
6308
6309   if (counterbutton_info[id].text_above)
6310     DrawText(x, y_above, counterbutton_info[id].text_above, FONT_TEXT_1);
6311
6312   if (counterbutton_info[id].text_left)
6313     DrawText(x_left, y, counterbutton_info[id].text_left, FONT_TEXT_1);
6314
6315   if (counterbutton_info[id].text_right)
6316     DrawText(x_right, y, counterbutton_info[id].text_right, FONT_TEXT_1);
6317
6318   MapGadget(gi_down);
6319   MapGadget(gi_text);
6320   MapGadget(gi_up);
6321 }
6322
6323 static void MapControlButtons()
6324 {
6325   int counter_id;
6326   int i;
6327
6328   /* map toolbox buttons (excluding special CE toolbox buttons) */
6329   for (i = 0; i < ED_NUM_CTRL1_2_BUTTONS; i++)
6330     MapGadget(level_editor_gadget[i]);
6331
6332   /* map toolbox buttons (element properties button) */
6333   MapGadget(level_editor_gadget[ED_NUM_CTRL1_4_BUTTONS]);
6334
6335   /* map buttons to select elements */
6336   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
6337     MapGadget(level_editor_gadget[GADGET_ID_ELEMENTLIST_FIRST + i]);
6338   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL]);
6339   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_UP]);
6340   MapGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_DOWN]);
6341
6342   /* map buttons to select level */
6343   counter_id = ED_COUNTER_ID_SELECT_LEVEL;
6344   counterbutton_info[counter_id].min_value = leveldir_current->first_level;
6345   counterbutton_info[counter_id].max_value = leveldir_current->last_level;
6346   MapCounterButtons(counter_id);
6347 }
6348
6349 static void MapDrawingArea(int id)
6350 {
6351   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
6352   int area_xsize = gi->drawing.area_xsize;
6353   int area_ysize = gi->drawing.area_ysize;
6354   int xoffset_left= getTextWidthForDrawingArea(drawingarea_info[id].text_left);
6355   int xoffset_below= getTextWidth(drawingarea_info[id].text_below,FONT_TEXT_1);
6356   int x_left  = gi->x - xoffset_left;
6357   int x_right = gi->x + gi->width + ED_DRAWINGAREA_TEXT_DISTANCE;
6358   int x_below = gi->x + (gi->width - xoffset_below) / 2;
6359   int y_side  = gi->y + (gi->height - getFontHeight(FONT_TEXT_1)) / 2;
6360   int y_below = gi->y + gi->height + ED_DRAWINGAREA_TEXT_DISTANCE;
6361
6362   if (drawingarea_info[id].text_left)
6363     DrawText(x_left, y_side, drawingarea_info[id].text_left, FONT_TEXT_1);
6364
6365   if (drawingarea_info[id].text_right)
6366     DrawText(x_right, y_side, drawingarea_info[id].text_right, FONT_TEXT_1);
6367
6368   if (drawingarea_info[id].text_below)
6369     DrawText(x_below, y_below, drawingarea_info[id].text_below, FONT_TEXT_1);
6370
6371   if (id != ED_DRAWING_ID_DRAWING_LEVEL)
6372   {
6373     DrawElementBorder(gi->x, gi->y,
6374                       area_xsize * MINI_TILEX, area_ysize * MINI_TILEY, TRUE);
6375
6376     DrawDrawingArea(id);
6377   }
6378
6379   MapGadget(gi);
6380 }
6381
6382 static void MapTextInputGadget(int id)
6383 {
6384   struct GadgetInfo *gi = level_editor_gadget[textinput_info[id].gadget_id];
6385   int xoffset_above = 0;
6386   int yoffset_above = -(MINI_TILEX + ED_GADGET_DISTANCE);
6387   int x_above = textinput_info[id].x + xoffset_above;
6388   int y_above = textinput_info[id].y + yoffset_above;
6389
6390   if (textinput_info[id].text_above)
6391     DrawTextS(x_above, y_above, FONT_TEXT_1, textinput_info[id].text_above);
6392
6393   ModifyGadget(gi, GDI_TEXT_VALUE, textinput_info[id].value, GDI_END);
6394
6395   MapGadget(gi);
6396 }
6397
6398 static void MapTextAreaGadget(int id)
6399 {
6400   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
6401   int xoffset_above = 0;
6402   int yoffset_above = -(MINI_TILEX + ED_GADGET_DISTANCE);
6403   int x_above = textarea_info[id].x + xoffset_above;
6404   int y_above = textarea_info[id].y + yoffset_above;
6405
6406   if (textarea_info[id].text_above)
6407     DrawTextS(x_above, y_above, FONT_TEXT_1, textarea_info[id].text_above);
6408
6409   ModifyGadget(gi, GDI_TEXT_VALUE, textarea_info[id].value, GDI_END);
6410
6411   MapGadget(gi);
6412 }
6413
6414 static void MapSelectboxGadget(int id)
6415 {
6416   struct GadgetInfo *gi = level_editor_gadget[selectbox_info[id].gadget_id];
6417   int xoffset_left = getTextWidthForGadget(selectbox_info[id].text_left);
6418   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
6419   int yoffset = ED_BORDER_SIZE;
6420   int x_left = gi->x - xoffset_left;
6421   int x_right = gi->x + gi->width + xoffset_right;
6422   int y = gi->y + yoffset;
6423
6424   if (selectbox_info[id].text_left)
6425     DrawText(x_left, y, selectbox_info[id].text_left, FONT_TEXT_1);
6426
6427   if (selectbox_info[id].text_right)
6428     DrawText(x_right, y, selectbox_info[id].text_right, FONT_TEXT_1);
6429
6430   ModifyEditorSelectboxValue(id, *selectbox_info[id].value);
6431
6432   MapGadget(gi);
6433 }
6434
6435 static void MapTextbuttonGadget(int id)
6436 {
6437   struct GadgetInfo *gi = level_editor_gadget[textbutton_info[id].gadget_id];
6438   int xoffset_left = getTextWidthForGadget(textbutton_info[id].text_left);
6439   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
6440   int yoffset = ED_BORDER_SIZE;
6441   int x_left = gi->x - xoffset_left;
6442   int x_right = gi->x + gi->width + xoffset_right;
6443   int y = gi->y + yoffset;
6444
6445   /* only show button to delete change pages when more than minimum pages */
6446   if (id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
6447       custom_element.num_change_pages == MIN_CHANGE_PAGES)
6448     return;
6449
6450   if (textbutton_info[id].text_left)
6451     DrawText(x_left, y, textbutton_info[id].text_left, FONT_TEXT_1);
6452
6453   if (textbutton_info[id].text_right)
6454     DrawText(x_right, y, textbutton_info[id].text_right, FONT_TEXT_1);
6455
6456   MapGadget(gi);
6457 }
6458
6459 static void MapGraphicbuttonGadget(int id)
6460 {
6461   struct GadgetInfo *gi= level_editor_gadget[graphicbutton_info[id].gadget_id];
6462   int xoffset_left = getTextWidthForGadget(graphicbutton_info[id].text_left);
6463   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
6464   int yoffset = ED_BORDER_SIZE;
6465   int x_left = gi->x - xoffset_left;
6466   int x_right = gi->x + gi->width + xoffset_right;
6467   int y = gi->y + yoffset;
6468
6469   if (graphicbutton_info[id].text_left)
6470     DrawText(x_left, y, graphicbutton_info[id].text_left, FONT_TEXT_1);
6471
6472   if (graphicbutton_info[id].text_right)
6473     DrawText(x_right, y, graphicbutton_info[id].text_right, FONT_TEXT_1);
6474
6475   MapGadget(gi);
6476 }
6477
6478 static void MapRadiobuttonGadget(int id)
6479 {
6480   struct GadgetInfo *gi = level_editor_gadget[radiobutton_info[id].gadget_id];
6481   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
6482   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
6483   int yoffset = ED_BORDER_SIZE;
6484   int x_left = gi->x - xoffset_left;
6485   int x_right = gi->x + gi->width + xoffset_right;
6486   int y = gi->y + yoffset;
6487   boolean checked =
6488     (*radiobutton_info[id].value == radiobutton_info[id].checked_value);
6489
6490   if (radiobutton_info[id].text_left)
6491     DrawText(x_left, y, radiobutton_info[id].text_left, FONT_TEXT_1);
6492
6493   if (radiobutton_info[id].text_right)
6494     DrawText(x_right, y, radiobutton_info[id].text_right, FONT_TEXT_1);
6495
6496   ModifyGadget(gi, GDI_CHECKED, checked, GDI_END);
6497
6498   MapGadget(gi);
6499 }
6500
6501 static void MapCheckbuttonGadget(int id)
6502 {
6503   struct GadgetInfo *gi = level_editor_gadget[checkbutton_info[id].gadget_id];
6504   int xoffset_left = getTextWidthForGadget(checkbutton_info[id].text_left);
6505   int xoffset_right = ED_GADGET_TEXT_DISTANCE;
6506   int yoffset = ED_BORDER_SIZE;
6507   int x_left, x_right, y;       /* set after gadget position was modified */
6508
6509   /* set position for gadgets with dynamically determined position */
6510   if (checkbutton_info[id].x != -1)     /* do not change dynamic positions */
6511     ModifyGadget(gi, GDI_X, SX + checkbutton_info[id].x, GDI_END);
6512   ModifyGadget(gi, GDI_Y, SY + checkbutton_info[id].y, GDI_END);
6513
6514   x_left = gi->x - xoffset_left;
6515   x_right = gi->x + gi->width + xoffset_right;
6516   y = gi->y + yoffset;
6517
6518   if (checkbutton_info[id].text_left)
6519     DrawText(x_left, y, checkbutton_info[id].text_left, FONT_TEXT_1);
6520
6521   if (checkbutton_info[id].text_right)
6522     DrawText(x_right, y, checkbutton_info[id].text_right, FONT_TEXT_1);
6523
6524   ModifyGadget(gi, GDI_CHECKED, *checkbutton_info[id].value, GDI_END);
6525
6526   MapGadget(gi);
6527 }
6528
6529 static void MapMainDrawingArea()
6530 {
6531   boolean no_horizontal_scrollbar = (lev_fieldx + 2 <= ed_fieldx);
6532   boolean no_vertical_scrollbar = (lev_fieldy + 2 <= ed_fieldy);
6533   int i;
6534
6535   for (i=ED_SCROLLBUTTON_ID_AREA_FIRST; i <= ED_SCROLLBUTTON_ID_AREA_LAST; i++)
6536   {
6537     if (((i == ED_SCROLLBUTTON_ID_AREA_LEFT ||
6538           i == ED_SCROLLBUTTON_ID_AREA_RIGHT) &&
6539          no_horizontal_scrollbar) ||
6540         ((i == ED_SCROLLBUTTON_ID_AREA_UP ||
6541           i == ED_SCROLLBUTTON_ID_AREA_DOWN) &&
6542          no_vertical_scrollbar))
6543       continue;
6544
6545     MapGadget(level_editor_gadget[scrollbutton_info[i].gadget_id]);
6546   }
6547
6548   for (i = ED_SCROLLBAR_ID_AREA_FIRST; i <= ED_SCROLLBAR_ID_AREA_LAST; i++)
6549   {
6550     if ((i == ED_SCROLLBAR_ID_AREA_HORIZONTAL && no_horizontal_scrollbar) ||
6551         (i == ED_SCROLLBAR_ID_AREA_VERTICAL && no_vertical_scrollbar))
6552       continue;
6553
6554     MapGadget(level_editor_gadget[scrollbar_info[i].gadget_id]);
6555   }
6556
6557   MapDrawingArea(ED_DRAWING_ID_DRAWING_LEVEL);
6558 }
6559
6560 static void MapOrUnmapLevelEditorToolboxCustomGadgets(boolean map)
6561 {
6562   int i;
6563
6564   for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
6565   {
6566     if (i == GADGET_ID_CUSTOM_COPY_FROM ||
6567         i == GADGET_ID_CUSTOM_COPY_TO ||
6568         i == GADGET_ID_CUSTOM_EXCHANGE ||
6569         i == GADGET_ID_CUSTOM_COPY ||
6570         i == GADGET_ID_CUSTOM_PASTE)
6571     {
6572       if (map)
6573         MapGadget(level_editor_gadget[i]);
6574       else
6575         UnmapGadget(level_editor_gadget[i]);
6576     }
6577   }
6578 }
6579
6580 static void MapLevelEditorToolboxCustomGadgets()
6581 {
6582   MapOrUnmapLevelEditorToolboxCustomGadgets(TRUE);
6583 }
6584
6585 static void UnmapLevelEditorToolboxCustomGadgets()
6586 {
6587   MapOrUnmapLevelEditorToolboxCustomGadgets(FALSE);
6588 }
6589
6590 static void MapOrUnmapLevelEditorToolboxDrawingGadgets(boolean map)
6591 {
6592   int i;
6593
6594   for (i = 0; i < ED_NUM_CTRL1_BUTTONS; i++)
6595   {
6596     if (i != GADGET_ID_SINGLE_ITEMS &&
6597         i != GADGET_ID_PICK_ELEMENT)
6598     {
6599       struct GadgetInfo *gi = level_editor_gadget[i];
6600
6601       if (map)
6602       {
6603         MapGadget(gi);
6604       }
6605       else
6606       {
6607         int graphic = IMG_EDITOR_NO_TOOLBOX_BUTTON;
6608         struct GraphicInfo *gd = &graphic_info[graphic];
6609
6610         UnmapGadget(gi);
6611
6612         BlitBitmap(gd->bitmap, drawto, gd->src_x, gd->src_y,
6613                    gi->width, gi->height, gi->x, gi->y);
6614
6615         redraw_mask |= REDRAW_DOOR_3;
6616       }
6617     }
6618   }
6619 }
6620
6621 static void MapLevelEditorToolboxDrawingGadgets()
6622 {
6623   MapOrUnmapLevelEditorToolboxDrawingGadgets(TRUE);
6624 }
6625
6626 static void UnmapLevelEditorToolboxDrawingGadgets()
6627 {
6628   MapOrUnmapLevelEditorToolboxDrawingGadgets(FALSE);
6629 }
6630
6631 static void UnmapDrawingArea(int id)
6632 {
6633   UnmapGadget(level_editor_gadget[drawingarea_info[id].gadget_id]);
6634 }
6635
6636 static void UnmapLevelEditorFieldGadgets()
6637 {
6638   int i;
6639
6640   for (i = 0; i < num_editor_gadgets; i++)
6641     if (IN_GFX_FIELD_FULL(level_editor_gadget[i]->x,
6642                           level_editor_gadget[i]->y))
6643       UnmapGadget(level_editor_gadget[i]);
6644 }
6645
6646 void UnmapLevelEditorGadgets()
6647 {
6648   int i;
6649
6650   for (i = 0; i < num_editor_gadgets; i++)
6651     UnmapGadget(level_editor_gadget[i]);
6652 }
6653
6654 static void ResetUndoBuffer()
6655 {
6656   undo_buffer_position = -1;
6657   undo_buffer_steps = -1;
6658   redo_buffer_steps = 0;
6659
6660   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
6661
6662   level.changed = FALSE;
6663 }
6664
6665 static void DrawEditModeWindow()
6666 {
6667   ModifyEditorElementList();
6668   RedrawDrawingElements();
6669
6670   if (edit_mode == ED_MODE_INFO)
6671     DrawLevelInfoWindow();
6672   else if (edit_mode == ED_MODE_PROPERTIES)
6673     DrawPropertiesWindow();
6674   else  /* edit_mode == ED_MODE_DRAWING */
6675     DrawDrawingWindow();
6676 }
6677
6678 static boolean LevelChanged()
6679 {
6680   boolean field_changed = FALSE;
6681   int x, y;
6682
6683   for (y = 0; y < lev_fieldy; y++)
6684     for (x = 0; x < lev_fieldx; x++)
6685       if (Feld[x][y] != level.field[x][y])
6686         field_changed = TRUE;
6687
6688   return (level.changed || field_changed);
6689 }
6690
6691 static boolean PrepareSavingIntoPersonalLevelSet()
6692 {
6693   static LevelDirTree *last_copied_leveldir = NULL;
6694   static LevelDirTree *last_written_leveldir = NULL;
6695   static int last_copied_level_nr = -1;
6696   static int last_written_level_nr = -1;
6697   LevelDirTree *leveldir_former = leveldir_current;
6698   int level_nr_former = level_nr;
6699   int new_level_nr;
6700
6701   // remember last mod/save so that for current session, we write
6702   // back to the same personal copy, asking only about overwrite.
6703   if (leveldir_current == last_copied_leveldir &&
6704       level_nr == last_copied_level_nr)
6705   {
6706     // "cd" to personal level set dir (as used when writing last copy)
6707     leveldir_current = last_written_leveldir;
6708     level_nr = last_written_level_nr;
6709
6710     return TRUE;
6711   }
6712
6713   if (!Request("This level is read only! "
6714                "Save into personal level set?", REQ_ASK))
6715     return FALSE;
6716
6717   // "cd" to personal level set dir (for writing copy the first time)
6718   leveldir_current =
6719     getTreeInfoFromIdentifier(leveldir_first, getLoginName());
6720
6721   // find unused level number
6722   for (new_level_nr = leveldir_current->first_level; ; new_level_nr++)
6723   {
6724     static char *level_filename = NULL;
6725
6726     setString(&level_filename, getDefaultLevelFilename(new_level_nr));
6727
6728     if (!fileExists(level_filename))
6729       break;
6730   }
6731
6732   last_copied_leveldir = leveldir_former;
6733   last_copied_level_nr = level_nr_former;
6734
6735   last_written_leveldir = leveldir_current;
6736   last_written_level_nr = level_nr = new_level_nr;
6737
6738   return TRUE;
6739 }
6740
6741 static void ModifyLevelInfoForSavingIntoPersonalLevelSet(char *former_name)
6742 {
6743   static char *filename_levelinfo = NULL, *mod_name = NULL;
6744   FILE *file;
6745
6746   // annotate this copy-and-mod in personal levelinfo.conf
6747   setString(&filename_levelinfo,
6748             getPath2(getCurrentLevelDir(), LEVELINFO_FILENAME));
6749
6750   if ((file = fopen(filename_levelinfo, MODE_APPEND)))
6751   {
6752     fprintf(file, "\n");
6753     fprintf(file, "# level %d was modified from:\n", level_nr);
6754     fprintf(file, "# - previous level set name:    %s\n",
6755             former_name);
6756     fprintf(file, "# - level within previous set:  %d \"%s\"\n",
6757             level.file_info.nr, level.name);
6758     fprintf(file, "# - previous author:            %s\n",
6759             level.author);
6760     fprintf(file, "# - previous save date:         ");
6761
6762     if (level.creation_date.src == DATE_SRC_LEVELFILE)
6763     {
6764       fprintf(file, "%04d-%02d-%02d\n",
6765               level.creation_date.year,
6766               level.creation_date.month,
6767               level.creation_date.day);
6768     }
6769     else
6770     {
6771       fprintf(file, "not recorded\n");
6772     }
6773
6774     fclose(file);
6775   }
6776
6777   if (level_nr > leveldir_current->last_level)
6778   {
6779     static char *temp_levelinfo = NULL;
6780     FILE *temp_file = NULL;
6781     char line[MAX_LINE_LEN];
6782
6783     setString(&temp_levelinfo,
6784               getPath2(getCurrentLevelDir(),
6785                        getStringCat2(LEVELINFO_FILENAME, ".new")));
6786
6787     if ((file = fopen(filename_levelinfo, MODE_READ)) &&
6788         (temp_file = fopen(temp_levelinfo, MODE_WRITE)))
6789     {
6790       while (fgets(line, MAX_LINE_LEN, file))
6791       {
6792         if (!strPrefix(line, "levels:"))
6793           fputs(line, temp_file);
6794         else
6795           fprintf(temp_file, "%-32s%d\n", "levels:", level_nr + 9);
6796       }
6797     }
6798
6799     if (temp_file)
6800       fclose(temp_file);
6801
6802     if (file)
6803       fclose(file);
6804
6805     // needs error handling; also, ok on dos/win?
6806     unlink(filename_levelinfo);
6807     rename(temp_levelinfo, filename_levelinfo);
6808   }
6809
6810   // else: allow the save even if annotation failed
6811
6812   // now... spray graffiti on the old level vital statistics
6813   // user can change these; just trying to set a good baseline
6814
6815   // don't truncate names for fear of making offensive or silly:
6816   // long-named original author only recorded in levelinfo.conf.
6817   // try to fit "Joe after Bob", "Joe (ed.)", then just "Joe"
6818   if (!strEqual(level.author, leveldir_current->author))
6819   {
6820     setString(&mod_name, getStringCat3(leveldir_current->author,
6821                                        " after ", level.author));
6822
6823     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
6824       setString(&mod_name,
6825                 getStringCat2(leveldir_current->author, " (ed.)"));
6826
6827     if (strlen(mod_name) > MAX_LEVEL_AUTHOR_LEN)
6828       setString(&mod_name, leveldir_current->author);
6829
6830     strncpy(level.author, mod_name, MAX_LEVEL_AUTHOR_LEN);
6831
6832     // less worried about truncation here
6833     setString(&mod_name, getStringCat2("Mod: ", level.name));
6834     strncpy(level.name, mod_name, MAX_LEVEL_NAME_LEN);
6835   }
6836 }
6837
6838 static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
6839                           short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
6840 {
6841   int x, y;
6842
6843   for (x = 0; x < lev_fieldx; x++)
6844     for (y = 0; y < lev_fieldy; y++)
6845       dst[x][y] = src[x][y];
6846 }
6847
6848 static int setSelectboxValue(int selectbox_id, int new_value)
6849 {
6850   int new_index_value = 0;
6851   int i;
6852
6853   for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
6854     if (selectbox_info[selectbox_id].options[i].value == new_value)
6855       new_index_value = i;
6856
6857   *selectbox_info[selectbox_id].value =
6858     selectbox_info[selectbox_id].options[new_index_value].value;
6859
6860   return new_index_value;
6861 }
6862
6863 static void setSelectboxSpecialActionVariablesIfNeeded()
6864 {
6865   int i;
6866
6867   /* change action mode and arg variables according to action type variable */
6868   for (i = 0; action_arg_options[i].value != -1; i++)
6869   {
6870     if (action_arg_options[i].value == custom_element_change.action_type)
6871     {
6872       int mode = action_arg_options[i].mode;
6873
6874       /* only change if corresponding selectbox has changed */
6875       if (selectbox_info[ED_SELECTBOX_ID_ACTION_MODE].options !=
6876           action_arg_modes[mode])
6877         custom_element_change.action_mode = -1;
6878
6879       /* only change if corresponding selectbox has changed */
6880       if (selectbox_info[ED_SELECTBOX_ID_ACTION_ARG].options !=
6881           action_arg_options[i].options)
6882         custom_element_change.action_arg = -1;
6883
6884       break;
6885     }
6886   }
6887 }
6888
6889 static void setSelectboxSpecialActionOptions()
6890 {
6891   int i;
6892
6893   /* change action mode and arg selectbox according to action type selectbox */
6894   for (i = 0; action_arg_options[i].value != -1; i++)
6895   {
6896     if (action_arg_options[i].value == custom_element_change.action_type)
6897     {
6898       int mode = action_arg_options[i].mode;
6899
6900       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_MODE,
6901                                    action_arg_modes[mode]);
6902       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_MODE,
6903                                  custom_element_change.action_mode);
6904
6905       ModifyEditorSelectboxOptions(ED_SELECTBOX_ID_ACTION_ARG,
6906                                    action_arg_options[i].options);
6907       ModifyEditorSelectboxValue(ED_SELECTBOX_ID_ACTION_ARG,
6908                                  custom_element_change.action_arg);
6909       break;
6910     }
6911   }
6912 }
6913
6914 static void copy_custom_element_settings(int element_from, int element_to)
6915 {
6916   struct ElementInfo *ei_from = &element_info[element_from];
6917   struct ElementInfo *ei_to = &element_info[element_to];
6918
6919   copyElementInfo(ei_from, ei_to);
6920 }
6921
6922 static void replace_custom_element_in_settings(int element_from,
6923                                                int element_to)
6924 {
6925   int i, j, x, y;
6926
6927   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
6928   {
6929     struct ElementInfo *ei = &element_info[i];
6930
6931     for (y = 0; y < 3; y++)
6932       for (x = 0; x < 3; x++)
6933         if (ei->content.e[x][y] == element_from)
6934           ei->content.e[x][y] = element_to;
6935
6936     for (j = 0; j < ei->num_change_pages; j++)
6937     {
6938       struct ElementChangeInfo *change = &ei->change_page[j];
6939
6940       if (change->target_element == element_from)
6941         change->target_element = element_to;
6942
6943       if (change->initial_trigger_element == element_from)
6944         change->initial_trigger_element = element_to;
6945
6946       if (change->action_element == element_from)
6947         change->action_element = element_to;
6948
6949       for (y = 0; y < 3; y++)
6950         for (x = 0; x < 3; x++)
6951           if (change->target_content.e[x][y] == element_from)
6952             change->target_content.e[x][y] = element_to;
6953     }
6954
6955     if (ei->group != NULL)                              /* group or internal */
6956       for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
6957         if (ei->group->element[j] == element_from)
6958           ei->group->element[j] = element_to;
6959   }
6960 }
6961
6962 static void replace_custom_element_in_playfield(int element_from,
6963                                                 int element_to)
6964 {
6965   int x, y;
6966
6967   for (x = 0; x < lev_fieldx; x++)
6968     for (y = 0; y < lev_fieldy; y++)
6969       if (Feld[x][y] == element_from)
6970         Feld[x][y] = element_to;
6971 }
6972
6973 static boolean CopyCustomElement(int element_old, int element_new,
6974                                  int copy_mode)
6975 {
6976   if (copy_mode == GADGET_ID_CUSTOM_COPY)
6977   {
6978     element_new = (IS_CUSTOM_ELEMENT(element_old) ?
6979                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
6980     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
6981   }
6982   else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
6983   {
6984     element_old = (IS_CUSTOM_ELEMENT(element_new) ?
6985                    EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
6986     copy_mode = GADGET_ID_CUSTOM_COPY_TO;
6987
6988     level.changed = TRUE;
6989   }
6990   else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
6991   {
6992     Request("Please choose custom element!", REQ_CONFIRM);
6993
6994     return FALSE;
6995   }
6996   else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
6997   {
6998     Request("Please choose group element!", REQ_CONFIRM);
6999
7000     return FALSE;
7001   }
7002   else
7003   {
7004     level.changed = TRUE;
7005   }
7006
7007   if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
7008   {
7009     copy_custom_element_settings(element_new, element_old);
7010   }
7011   else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
7012   {
7013     copy_custom_element_settings(element_old, element_new);
7014   }
7015   else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
7016   {
7017     copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
7018     copy_custom_element_settings(element_new, element_old);
7019     copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
7020
7021     replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
7022     replace_custom_element_in_settings(element_new, element_old);
7023     replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
7024
7025     replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
7026     replace_custom_element_in_playfield(element_new, element_old);
7027     replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
7028   }
7029
7030   UpdateCustomElementGraphicGadgets();
7031   DrawPropertiesWindow();
7032
7033   return TRUE;
7034 }
7035
7036 static void CopyCustomElementPropertiesToEditor(int element)
7037 {
7038   int i;
7039   int current_change_page = element_info[element].current_change_page;
7040
7041   /* dynamically (re)build selectbox for selecting change page */
7042   for (i = 0; i < element_info[element].num_change_pages; i++)
7043   {
7044     sprintf(options_change_page_strings[i], "%d", i + 1);
7045
7046     options_change_page[i].value = i;
7047     options_change_page[i].text = options_change_page_strings[i];
7048   }
7049
7050   options_change_page[i].value = -1;
7051   options_change_page[i].text = NULL;
7052
7053   /* needed here to initialize combined element properties */
7054   InitElementPropertiesEngine(level.game_version);
7055
7056   element_info[element].change =
7057     &element_info[element].change_page[current_change_page];
7058
7059   custom_element = element_info[element];
7060   custom_element_change = *element_info[element].change;
7061
7062   /* needed to initially set selectbox options for special action options */
7063   setSelectboxSpecialActionOptions();
7064
7065   /* needed to initially set selectbox value variables to reliable defaults */
7066   for (i = 0; i < ED_NUM_SELECTBOX; i++)
7067     setSelectboxValue(i, *selectbox_info[i].value);
7068
7069   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
7070     custom_element_properties[i] = HAS_PROPERTY(element, i);
7071
7072   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
7073     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
7074
7075   /* ---------- element settings: configure (custom elements) ------------- */
7076
7077   /* set accessible layer selectbox help value */
7078   custom_element.access_type =
7079     (IS_WALKABLE(element) ? EP_WALKABLE :
7080      IS_PASSABLE(element) ? EP_PASSABLE :
7081      custom_element.access_type);
7082   custom_element.access_layer =
7083     (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
7084      IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
7085      IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
7086      custom_element.access_layer);
7087   custom_element.access_protected =
7088     (IS_PROTECTED(element) ? 1 : 0);
7089   custom_element_properties[EP_ACCESSIBLE] =
7090     (IS_ACCESSIBLE_OVER(element) ||
7091      IS_ACCESSIBLE_INSIDE(element) ||
7092      IS_ACCESSIBLE_UNDER(element));
7093
7094   /* set walk-to-object action selectbox help value */
7095   custom_element.walk_to_action =
7096     (IS_DIGGABLE(element) ? EP_DIGGABLE :
7097      IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
7098      IS_DROPPABLE(element) ? EP_DROPPABLE :
7099      IS_THROWABLE(element) ? EP_THROWABLE :
7100      IS_PUSHABLE(element) ? EP_PUSHABLE :
7101      custom_element.walk_to_action);
7102   custom_element_properties[EP_WALK_TO_OBJECT] =
7103     (IS_DIGGABLE(element) ||
7104      IS_COLLECTIBLE_ONLY(element) ||
7105      IS_DROPPABLE(element) ||
7106      IS_THROWABLE(element) ||
7107      IS_PUSHABLE(element));
7108
7109   /* set smash targets selectbox help value */
7110   custom_element.smash_targets =
7111     (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
7112      CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
7113      CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
7114      custom_element.smash_targets);
7115   custom_element_properties[EP_CAN_SMASH] =
7116     (CAN_SMASH_EVERYTHING(element) ||
7117      CAN_SMASH_ENEMIES(element) ||
7118      CAN_SMASH_PLAYER(element));
7119
7120   /* set deadliness selectbox help value */
7121   custom_element.deadliness =
7122     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
7123      DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
7124      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
7125      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
7126      custom_element.deadliness);
7127   custom_element_properties[EP_DEADLY] =
7128     (DONT_TOUCH(element) ||
7129      DONT_GET_HIT_BY(element) ||
7130      DONT_COLLIDE_WITH(element) ||
7131      DONT_RUN_INTO(element));
7132
7133   /* ---------- element settings: advanced (custom elements) --------------- */
7134
7135   /* set "change by direct action" selectbox help value */
7136   custom_element_change.direct_action =
7137     (HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
7138      HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
7139      HAS_CHANGE_EVENT(element, CE_SWITCHED_BY_PLAYER) ? CE_SWITCHED_BY_PLAYER :
7140      HAS_CHANGE_EVENT(element, CE_SNAPPED_BY_PLAYER) ? CE_SNAPPED_BY_PLAYER :
7141      HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
7142      HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
7143      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
7144      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
7145      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
7146      HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
7147      HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
7148      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
7149      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
7150      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
7151      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES) ? CE_VALUE_CHANGES :
7152      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES) ? CE_SCORE_CHANGES :
7153      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO) ? CE_VALUE_GETS_ZERO :
7154      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO) ? CE_SCORE_GETS_ZERO :
7155      custom_element_change.direct_action);
7156
7157   /* set "change by other element action" selectbox help value */
7158   custom_element_change.other_action =
7159     (HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
7160      HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
7161      HAS_CHANGE_EVENT(element, CE_PLAYER_SWITCHES_X) ? CE_PLAYER_SWITCHES_X :
7162      HAS_CHANGE_EVENT(element, CE_PLAYER_SNAPS_X) ? CE_PLAYER_SNAPS_X :
7163      HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
7164      HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
7165      HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
7166      HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
7167      HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
7168      HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
7169      HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
7170      HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
7171      HAS_CHANGE_EVENT(element, CE_DIGGING_X) ? CE_DIGGING_X :
7172      HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
7173      HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
7174      HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
7175      HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
7176      HAS_CHANGE_EVENT(element, CE_MOVE_OF_X) ? CE_MOVE_OF_X :
7177      HAS_CHANGE_EVENT(element, CE_CREATION_OF_X) ? CE_CREATION_OF_X :
7178      HAS_CHANGE_EVENT(element, CE_VALUE_CHANGES_OF_X) ? CE_VALUE_CHANGES_OF_X :
7179      HAS_CHANGE_EVENT(element, CE_SCORE_CHANGES_OF_X) ? CE_SCORE_CHANGES_OF_X :
7180      HAS_CHANGE_EVENT(element, CE_VALUE_GETS_ZERO_OF_X) ? CE_VALUE_GETS_ZERO_OF_X :
7181      HAS_CHANGE_EVENT(element, CE_SCORE_GETS_ZERO_OF_X) ? CE_SCORE_GETS_ZERO_OF_X :
7182      custom_element_change.other_action);
7183 }
7184
7185 static void CopyGroupElementPropertiesToEditor(int element)
7186 {
7187   group_element_info = *element_info[element].group;
7188   custom_element = element_info[element];       /* needed for description */
7189 }
7190
7191 static void CopyClassicElementPropertiesToEditor(int element)
7192 {
7193   if (ELEM_IS_PLAYER(element) || COULD_MOVE_INTO_ACID(element))
7194     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
7195       getMoveIntoAcidProperty(&level, element);
7196
7197   if (MAYBE_DONT_COLLIDE_WITH(element))
7198     custom_element_properties[EP_DONT_COLLIDE_WITH] =
7199       getDontCollideWithProperty(&level, element);
7200 }
7201
7202 static void CopyElementPropertiesToEditor(int element)
7203 {
7204   if (IS_CUSTOM_ELEMENT(element))
7205     CopyCustomElementPropertiesToEditor(element);
7206   else if (IS_GROUP_ELEMENT(element))
7207     CopyGroupElementPropertiesToEditor(element);
7208   else
7209     CopyClassicElementPropertiesToEditor(element);
7210 }
7211
7212 static void CopyCustomElementPropertiesToGame(int element)
7213 {
7214   int i;
7215   int access_type_and_layer;
7216
7217   /* mark that this custom element has been modified */
7218   custom_element.modified_settings = TRUE;
7219   level.changed = TRUE;
7220
7221   if (level.use_custom_template)
7222   {
7223     if (Request("Copy and modify level template?", REQ_ASK))
7224     {
7225       level.use_custom_template = FALSE;
7226       ModifyGadget(level_editor_gadget[GADGET_ID_CUSTOM_USE_TEMPLATE],
7227                    GDI_CHECKED, FALSE, GDI_END);
7228     }
7229     else
7230     {
7231       LoadLevelTemplate(-1);    /* this resets all element modifications ... */
7232
7233       DrawEditModeWindow();     /* ... and copies them to 'custom_element' */
7234     }
7235   }
7236
7237   element_info[element] = custom_element;
7238   *element_info[element].change = custom_element_change;
7239
7240   /* ---------- element settings: configure (custom elements) ------------- */
7241
7242   /* set accessible property from checkbox and selectbox */
7243   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
7244   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
7245   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
7246   custom_element_properties[EP_PASSABLE_OVER] = FALSE;
7247   custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
7248   custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
7249   access_type_and_layer = ((custom_element.access_type == EP_WALKABLE ?
7250                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
7251                            (custom_element.access_layer - EP_ACCESSIBLE_OVER));
7252   custom_element_properties[access_type_and_layer] =
7253     custom_element_properties[EP_ACCESSIBLE];
7254   custom_element_properties[EP_PROTECTED] =
7255     (custom_element.access_protected != 0 &&
7256      custom_element_properties[EP_ACCESSIBLE]);
7257
7258   /* set walk-to-object property from checkbox and selectbox */
7259   custom_element_properties[EP_DIGGABLE] = FALSE;
7260   custom_element_properties[EP_COLLECTIBLE_ONLY] = FALSE;
7261   custom_element_properties[EP_DROPPABLE] = FALSE;
7262   custom_element_properties[EP_THROWABLE] = FALSE;
7263   custom_element_properties[EP_PUSHABLE] = FALSE;
7264   custom_element_properties[custom_element.walk_to_action] =
7265     custom_element_properties[EP_WALK_TO_OBJECT];
7266
7267   /* set smash property from checkbox and selectbox */
7268   custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
7269   custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
7270   custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
7271   custom_element_properties[custom_element.smash_targets] =
7272     custom_element_properties[EP_CAN_SMASH];
7273
7274   /* set deadliness property from checkbox and selectbox */
7275   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
7276   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
7277   custom_element_properties[EP_DONT_GET_HIT_BY] = FALSE;
7278   custom_element_properties[EP_DONT_TOUCH] = FALSE;
7279   custom_element_properties[custom_element.deadliness] =
7280     custom_element_properties[EP_DEADLY];
7281
7282   /* ---------- element settings: advanced (custom elements) --------------- */
7283
7284   /* set player change event from checkbox and selectbox */
7285   custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
7286   custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
7287   custom_element_change_events[CE_SWITCHED_BY_PLAYER] = FALSE;
7288   custom_element_change_events[CE_SNAPPED_BY_PLAYER] = FALSE;
7289   custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
7290   custom_element_change_events[CE_ENTERED_BY_PLAYER] = FALSE;
7291   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
7292   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
7293   custom_element_change_events[CE_SWITCHED] = FALSE;
7294   custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
7295   custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
7296   custom_element_change_events[CE_BLOCKED] = FALSE;
7297   custom_element_change_events[CE_IMPACT] = FALSE;
7298   custom_element_change_events[CE_SMASHED] = FALSE;
7299   custom_element_change_events[CE_VALUE_CHANGES] = FALSE;
7300   custom_element_change_events[CE_SCORE_CHANGES] = FALSE;
7301   custom_element_change_events[CE_VALUE_GETS_ZERO] = FALSE;
7302   custom_element_change_events[CE_SCORE_GETS_ZERO] = FALSE;
7303   custom_element_change_events[custom_element_change.direct_action] =
7304     custom_element_change_events[CE_BY_DIRECT_ACTION];
7305
7306   /* set other element action change event from checkbox and selectbox */
7307   custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
7308   custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
7309   custom_element_change_events[CE_PLAYER_SWITCHES_X] = FALSE;
7310   custom_element_change_events[CE_PLAYER_SNAPS_X] = FALSE;
7311   custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
7312   custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
7313   custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
7314   custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
7315   custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
7316   custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
7317   custom_element_change_events[CE_TOUCHING_X] = FALSE;
7318   custom_element_change_events[CE_HITTING_X] = FALSE;
7319   custom_element_change_events[CE_DIGGING_X] = FALSE;
7320   custom_element_change_events[CE_HIT_BY_X] = FALSE;
7321   custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
7322   custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
7323   custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
7324   custom_element_change_events[CE_MOVE_OF_X] = FALSE;
7325   custom_element_change_events[CE_CREATION_OF_X] = FALSE;
7326   custom_element_change_events[CE_VALUE_CHANGES_OF_X] = FALSE;
7327   custom_element_change_events[CE_SCORE_CHANGES_OF_X] = FALSE;
7328   custom_element_change_events[CE_VALUE_GETS_ZERO_OF_X] = FALSE;
7329   custom_element_change_events[CE_SCORE_GETS_ZERO_OF_X] = FALSE;
7330   custom_element_change_events[custom_element_change.other_action] =
7331     custom_element_change_events[CE_BY_OTHER_ACTION];
7332
7333   for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
7334     SET_PROPERTY(element, i, custom_element_properties[i]);
7335
7336   for (i = 0; i < NUM_CHANGE_EVENTS; i++)
7337     SET_CHANGE_EVENT(element, i, custom_element_change_events[i]);
7338
7339   /* copy change events also to special level editor variable */
7340   custom_element = element_info[element];
7341   custom_element_change = *element_info[element].change;
7342 }
7343
7344 static void CopyGroupElementPropertiesToGame(int element)
7345 {
7346   element_info[element] = custom_element;
7347   *element_info[element].group = group_element_info;
7348
7349   /* mark that this group element has been modified */
7350   element_info[element].modified_settings = TRUE;
7351   level.changed = TRUE;
7352 }
7353
7354 static void CopyClassicElementPropertiesToGame(int element)
7355 {
7356   if (ELEM_IS_PLAYER(element) || COULD_MOVE_INTO_ACID(element))
7357     setMoveIntoAcidProperty(&level, element,
7358                             custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
7359
7360   if (MAYBE_DONT_COLLIDE_WITH(element))
7361     setDontCollideWithProperty(&level, element,
7362                               custom_element_properties[EP_DONT_COLLIDE_WITH]);
7363 }
7364
7365 static void CopyElementPropertiesToGame(int element)
7366 {
7367   if (IS_CUSTOM_ELEMENT(element))
7368     CopyCustomElementPropertiesToGame(element);
7369   else if (IS_GROUP_ELEMENT(element))
7370     CopyGroupElementPropertiesToGame(element);
7371   else
7372     CopyClassicElementPropertiesToGame(element);
7373 }
7374
7375 void CheckElementDescriptions()
7376 {
7377   int i;
7378
7379   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
7380     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
7381       Error(ERR_WARN, "no element description for element '%s'", EL_NAME(i));
7382 }
7383
7384 static int getMaxEdFieldX(boolean has_scrollbar)
7385 {
7386   int scrollbar_width = (has_scrollbar ? ED_SCROLLBUTTON_XSIZE : 0);
7387   int sxsize = SXSIZE - scrollbar_width;
7388   int max_ed_fieldx = sxsize / ed_tilesize;
7389
7390   return max_ed_fieldx;
7391 }
7392
7393 static int getMaxEdFieldY(boolean has_scrollbar)
7394 {
7395   int infotext_height = INFOTEXT_YSIZE;
7396   int scrollbar_height = (has_scrollbar ? ED_SCROLLBUTTON_YSIZE : 0);
7397   int sysize = SYSIZE - scrollbar_height - infotext_height;
7398   int max_ed_fieldy = sysize / ed_tilesize;
7399
7400   return max_ed_fieldy;
7401 }
7402
7403 void InitZoomLevelSettings()
7404 {
7405   MAX_ED_FIELDX = getMaxEdFieldX(FALSE);
7406   MAX_ED_FIELDY = getMaxEdFieldY(FALSE);
7407 }
7408
7409 static boolean playfield_area_changed = FALSE;
7410
7411 void DrawLevelEd()
7412 {
7413   StopAnimation();
7414
7415   CloseDoor(DOOR_CLOSE_ALL);
7416
7417   FadeOut(REDRAW_FIELD);
7418
7419   /* needed after playing if editor playfield area has different size */
7420   ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
7421
7422   /* needed if different viewport properties defined for editor */
7423   ChangeViewportPropertiesIfNeeded();
7424
7425   InitZoomLevelSettings();
7426
7427   playfield_area_changed = DrawingAreaChanged();
7428
7429   OpenDoor(DOOR_OPEN_1 | DOOR_OPEN_2 | DOOR_NO_DELAY);
7430
7431 #if DEBUG
7432   CheckElementDescriptions();
7433 #endif
7434
7435   if (level_editor_test_game)
7436   {
7437     CopyPlayfield(level.field, Feld);
7438     CopyPlayfield(FieldBackup, level.field);
7439
7440     level_editor_test_game = FALSE;
7441   }
7442   else
7443   {
7444     edit_mode = ED_MODE_DRAWING;
7445     edit_mode_levelinfo = ED_MODE_LEVELINFO_LEVEL;
7446     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
7447
7448     ResetUndoBuffer();
7449
7450     level_xpos = -1;
7451     level_ypos = -1;
7452   }
7453
7454   /* needed for gadgets drawn on background (like palette scrollbar) */
7455   SetDoorBackgroundImage(IMG_UNDEFINED);
7456
7457   /* copy default editor door content to main double buffer */
7458   BlitBitmap(graphic_info[IMG_BACKGROUND_PALETTE].bitmap, drawto,
7459              graphic_info[IMG_BACKGROUND_PALETTE].src_x,
7460              graphic_info[IMG_BACKGROUND_PALETTE].src_y,
7461              DXSIZE, DYSIZE, DX, DY);
7462
7463   /* draw bigger door */
7464   DrawSpecialEditorDoor();
7465
7466   /* draw new control window */
7467   BlitBitmap(graphic_info[IMG_BACKGROUND_TOOLBOX].bitmap, drawto,
7468              graphic_info[IMG_BACKGROUND_TOOLBOX].src_x,
7469              graphic_info[IMG_BACKGROUND_TOOLBOX].src_y,
7470              EXSIZE, EYSIZE, EX, EY);
7471
7472   // redraw_mask |= REDRAW_ALL;
7473
7474   FreeLevelEditorGadgets();
7475   CreateLevelEditorGadgets();
7476
7477   ReinitializeElementList();            /* update dynamic level element list */
7478   ReinitializeElementListButtons();     /* custom element may look different */
7479
7480   InitElementPropertiesGfxElement();
7481
7482   UnmapAllGadgets();
7483   MapControlButtons();
7484
7485   DrawEditModeWindow();
7486
7487   FadeIn(playfield_area_changed ? REDRAW_ALL : REDRAW_FIELD);
7488
7489   /* copy actual editor door content to door double buffer for OpenDoor() */
7490   BlitBitmap(drawto, bitmap_db_door_1, DX, DY, DXSIZE, DYSIZE, 0, 0);
7491 }
7492
7493 static void AdjustDrawingAreaGadgets()
7494 {
7495   int ed_xsize = lev_fieldx + 2;
7496   int ed_ysize = lev_fieldy + 2;
7497   int max_ed_fieldx = MAX_ED_FIELDX;
7498   int max_ed_fieldy = MAX_ED_FIELDY;
7499   boolean horizontal_scrollbar_needed;
7500   boolean vertical_scrollbar_needed;
7501   int x, y, width, height;
7502
7503   /* check if we need any scrollbars */
7504   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
7505   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
7506
7507   /* check if we have a smaller editor field because of scrollbars */
7508   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
7509   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
7510
7511   /* check again if we now need more scrollbars because of less space */
7512   horizontal_scrollbar_needed = (ed_xsize > max_ed_fieldx);
7513   vertical_scrollbar_needed   = (ed_ysize > max_ed_fieldy);
7514
7515   /* check if editor field gets even smaller after adding new scrollbars */
7516   max_ed_fieldx = getMaxEdFieldX(vertical_scrollbar_needed);
7517   max_ed_fieldy = getMaxEdFieldY(horizontal_scrollbar_needed);
7518
7519   ed_fieldx = (ed_xsize > max_ed_fieldx ? max_ed_fieldx : ed_xsize);
7520   ed_fieldy = (ed_ysize > max_ed_fieldy ? max_ed_fieldy : ed_ysize);
7521
7522   x = SX + ed_fieldx * ed_tilesize;
7523   y = SY + ed_fieldy * ed_tilesize;
7524
7525   width  = ed_fieldx * ed_tilesize - 2 * ED_SCROLLBUTTON_XSIZE;
7526   height = ed_fieldy * ed_tilesize - 2 * ED_SCROLLBUTTON_YSIZE;
7527
7528   /* adjust drawing area gadget */
7529   ModifyGadget(level_editor_gadget[GADGET_ID_DRAWING_LEVEL],
7530                GDI_AREA_SIZE, ed_fieldx, ed_fieldy,
7531                GDI_ITEM_SIZE, ed_tilesize, ed_tilesize,
7532                GDI_END);
7533
7534   /* adjust horizontal scrollbar gadgets */
7535   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LEFT],
7536                GDI_Y, y,
7537                GDI_END);
7538   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_RIGHT],
7539                GDI_X, x - ED_SCROLLBUTTON_XSIZE,
7540                GDI_Y, y,
7541                GDI_END);
7542   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
7543                GDI_Y, y,
7544                GDI_WIDTH, width,
7545                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldx,
7546                GDI_END);
7547
7548   /* adjust vertical scrollbar gadgets */
7549   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_UP],
7550                GDI_X, x,
7551                GDI_END);
7552   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_DOWN],
7553                GDI_X, x,
7554                GDI_Y, y - ED_SCROLLBUTTON_YSIZE,
7555                GDI_END);
7556   ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
7557                GDI_X, x,
7558                GDI_HEIGHT, height,
7559                GDI_SCROLLBAR_ITEMS_VISIBLE, ed_fieldy,
7560                GDI_END);
7561 }
7562
7563 static void AdjustLevelScrollPosition()
7564 {
7565   if (level_xpos < -1)
7566     level_xpos = -1;
7567   if (level_xpos > lev_fieldx - ed_fieldx + 1)
7568     level_xpos = lev_fieldx - ed_fieldx + 1;
7569   if (lev_fieldx < ed_fieldx - 2)
7570     level_xpos = -1;
7571
7572   if (level_ypos < -1)
7573     level_ypos = -1;
7574   if (level_ypos > lev_fieldy - ed_fieldy + 1)
7575     level_ypos = lev_fieldy - ed_fieldy + 1;
7576   if (lev_fieldy < ed_fieldy - 2)
7577     level_ypos = -1;
7578 }
7579
7580 static void AdjustEditorScrollbar(int id)
7581 {
7582   struct GadgetInfo *gi = level_editor_gadget[id];
7583   int items_max, items_visible, item_position;
7584
7585   if (id == GADGET_ID_SCROLL_HORIZONTAL)
7586   {
7587     items_max = MAX(lev_fieldx + 2, ed_fieldx);
7588     items_visible = ed_fieldx;
7589     item_position = level_xpos + 1;
7590   }
7591   else
7592   {
7593     items_max = MAX(lev_fieldy + 2, ed_fieldy);
7594     items_visible = ed_fieldy;
7595     item_position = level_ypos + 1;
7596   }
7597
7598   if (item_position > items_max - items_visible)
7599     item_position = items_max - items_visible;
7600
7601   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
7602                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
7603 }
7604
7605 static void AdjustElementListScrollbar()
7606 {
7607   struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL];
7608   int items_max, items_visible, item_position;
7609
7610   /* correct position of element list scrollbar */
7611   if (element_shift < 0)
7612     element_shift = 0;
7613   if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
7614     element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
7615
7616   items_max = num_editor_elements / ED_ELEMENTLIST_BUTTONS_HORIZ;
7617   items_visible = ED_ELEMENTLIST_BUTTONS_VERT;
7618   item_position = element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ;
7619
7620   ModifyGadget(gi, GDI_SCROLLBAR_ITEMS_MAX, items_max,
7621                GDI_SCROLLBAR_ITEMS_VISIBLE, items_visible,
7622                GDI_SCROLLBAR_ITEM_POSITION, item_position, GDI_END);
7623 }
7624
7625 static void ModifyEditorCounterValue(int counter_id, int new_value)
7626 {
7627   int *counter_value = counterbutton_info[counter_id].value;
7628   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
7629   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
7630
7631   ModifyGadget(gi, GDI_NUMBER_VALUE, new_value, GDI_END);
7632
7633   if (counter_value != NULL)
7634     *counter_value = gi->textinput.number_value;
7635 }
7636
7637 static void ModifyEditorCounterLimits(int counter_id, int min, int max)
7638 {
7639   int gadget_id = counterbutton_info[counter_id].gadget_id_text;
7640   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
7641
7642   ModifyGadget(gi, GDI_NUMBER_MIN, min, GDI_NUMBER_MAX, max, GDI_END);
7643
7644   if (counter_id >= ED_COUNTER_ID_ELEMENT_VALUE1 &&
7645       counter_id <= ED_COUNTER_ID_ELEMENT_VALUE4)
7646   {
7647     int gadget_id_up = counterbutton_info[counter_id].gadget_id_up;
7648     struct GadgetInfo *gi_up = level_editor_gadget[gadget_id_up];
7649
7650     ModifyGadget(gi, GDI_TEXT_SIZE, (max < 10 ? 1 : 3), GDI_END);
7651     ModifyGadget(gi_up, GDI_X, gi->x + gi->width + ED_GADGET_DISTANCE,GDI_END);
7652   }
7653 }
7654
7655 static void ModifyEditorSelectboxValue(int selectbox_id, int new_value)
7656 {
7657   int gadget_id = selectbox_info[selectbox_id].gadget_id;
7658   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
7659   int new_index_value = setSelectboxValue(selectbox_id, new_value);
7660
7661   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
7662 }
7663
7664 static void ModifyEditorSelectboxOptions(int selectbox_id,
7665                                          struct ValueTextInfo *options)
7666 {
7667   int gadget_id = selectbox_info[selectbox_id].gadget_id;
7668   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
7669
7670   selectbox_info[selectbox_id].options = options;
7671
7672   /* set index to zero -- list may be shorter now (correct later, if needed) */
7673   ModifyGadget(gi, GDI_SELECTBOX_INDEX, 0,
7674                GDI_SELECTBOX_OPTIONS, options, GDI_END);
7675 }
7676
7677 static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
7678 {
7679   int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
7680   struct GadgetInfo *gi = level_editor_gadget[gadget_id];
7681
7682   drawingarea_info[drawingarea_id].area_xsize = xsize;
7683   drawingarea_info[drawingarea_id].area_ysize = ysize;
7684
7685   ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
7686 }
7687
7688 static void ModifyEditorElementList()
7689 {
7690   int i;
7691
7692   for (i = 0; i < ED_NUM_ELEMENTLIST_BUTTONS; i++)
7693   {
7694     int gadget_id = GADGET_ID_ELEMENTLIST_FIRST + i;
7695     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
7696     struct GadgetDesign *gd = &gi->deco.design;
7697     int element = editor_elements[element_shift + i];
7698
7699     UnmapGadget(gi);
7700
7701     getElementListGraphicSource(element, &gd->bitmap, &gd->x, &gd->y);
7702
7703     ModifyGadget(gi, GDI_INFO_TEXT, getElementInfoText(element), GDI_END);
7704
7705     MapGadget(gi);
7706   }
7707 }
7708
7709 static void DrawDrawingElement(int element, struct EditorPaletteElementInfo *e)
7710 {
7711   int graphic = el2edimg(element);
7712   int tile_size = (e->tile_size >= TILESIZE ? TILESIZE : MINI_TILESIZE);
7713
7714   DrawSizedGraphicExt(drawto, DX + e->x, DY + e->y, graphic, 0, tile_size);
7715 }
7716
7717 static void PickDrawingElement(int button, int element)
7718 {
7719   struct
7720   {
7721     int *new_element;
7722     struct EditorPaletteElementInfo *e;
7723   } de, drawing_elements[] =
7724   {
7725     { &new_element1,    &editor.palette.element_left    },
7726     { &new_element2,    &editor.palette.element_middle  },
7727     { &new_element3,    &editor.palette.element_right   },
7728   };
7729
7730   if (button < 1 || button > 3)
7731     return;
7732
7733   de = drawing_elements[button - 1];
7734
7735   DrawDrawingElement((*de.new_element = element), de.e);
7736
7737   redraw_mask |= REDRAW_DOOR_1;
7738 }
7739
7740 static void RedrawDrawingElements()
7741 {
7742   PickDrawingElement(1, new_element1);
7743   PickDrawingElement(2, new_element2);
7744   PickDrawingElement(3, new_element3);
7745 }
7746
7747 static void DrawDrawingWindow()
7748 {
7749   stick_element_properties_window = FALSE;
7750
7751   SetMainBackgroundImage(IMG_UNDEFINED);
7752   ClearField();
7753
7754   UnmapLevelEditorFieldGadgets();
7755   UnmapLevelEditorToolboxCustomGadgets();
7756
7757   AdjustDrawingAreaGadgets();
7758   AdjustLevelScrollPosition();
7759   AdjustEditorScrollbar(GADGET_ID_SCROLL_HORIZONTAL);
7760   AdjustEditorScrollbar(GADGET_ID_SCROLL_VERTICAL);
7761
7762   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
7763
7764   MapMainDrawingArea();
7765   MapLevelEditorToolboxDrawingGadgets();
7766 }
7767
7768 static int getTabulatorBarWidth()
7769 {
7770   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
7771   struct GadgetInfo *gd_gi4 = level_editor_gadget[GADGET_ID_PROPERTIES_CHANGE];
7772
7773   return gd_gi4->x - gd_gi1->x + gd_gi4->width;
7774 }
7775
7776 static void DrawLevelInfoTabulatorGadgets()
7777 {
7778   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_LEVELINFO_LEVEL];
7779   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
7780   int gd_x = gd->x + gd_gi1->border.width / 2;
7781   int gd_y = gd->y + gd_gi1->height - 1;
7782   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
7783   int id_first = ED_TEXTBUTTON_ID_LEVELINFO_LEVEL;
7784   int id_last  = ED_TEXTBUTTON_ID_LEVELINFO_EDITOR;
7785   int i;
7786
7787   for (i = id_first; i <= id_last; i++)
7788   {
7789     int gadget_id = textbutton_info[i].gadget_id;
7790     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
7791     boolean active = (i != edit_mode_levelinfo);
7792
7793     /* draw background line below tabulator button */
7794     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
7795
7796     /* draw solid line below inactive tabulator buttons */
7797     if (!active && tab_color != BLACK_PIXEL)    /* black => transparent */
7798       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width, 1, tab_color);
7799
7800     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
7801     MapTextbuttonGadget(i);
7802   }
7803
7804   /* draw little border line below tabulator buttons */
7805   if (tab_color != BLACK_PIXEL)                 /* black => transparent */
7806     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height + 1,
7807                   getTabulatorBarWidth(), ED_GADGET_DISTANCE,
7808                   tab_color);
7809 }
7810
7811 static void DrawPropertiesTabulatorGadgets()
7812 {
7813   struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
7814   struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
7815   int gd_x = gd->x + gd_gi1->border.width / 2;
7816   int gd_y = gd->y + gd_gi1->height - 1;
7817   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
7818   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
7819   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
7820   int i;
7821
7822   /* draw two config tabulators for player elements */
7823   if (ELEM_IS_PLAYER(properties_element))
7824     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
7825
7826   /* draw two config and one "change" tabulator for custom elements */
7827   if (IS_CUSTOM_ELEMENT(properties_element))
7828     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CHANGE;
7829
7830   for (i = id_first; i <= id_last; i++)
7831   {
7832     int gadget_id = textbutton_info[i].gadget_id;
7833     struct GadgetInfo *gi = level_editor_gadget[gadget_id];
7834     boolean active = (i != edit_mode_properties);
7835
7836     /* use "config 1" and "config 2" instead of "config" for players and CEs */
7837     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
7838         (ELEM_IS_PLAYER(properties_element) ||
7839          IS_CUSTOM_ELEMENT(properties_element)))
7840       continue;
7841
7842     /* draw background line below tabulator button */
7843     ClearRectangleOnBackground(drawto, gi->x, gi->y + gi->height, gi->width, 1);
7844
7845     /* draw solid line below inactive tabulator buttons */
7846     if (!active && tab_color != BLACK_PIXEL)    /* black => transparent */
7847       FillRectangle(drawto, gi->x, gi->y + gi->height, gi->width, 1, tab_color);
7848
7849     ModifyGadget(gi, GDI_ACTIVE, active, GDI_END);
7850     MapTextbuttonGadget(i);
7851   }
7852
7853   /* draw little border line below tabulator buttons */
7854   if (tab_color != BLACK_PIXEL)                 /* black => transparent */
7855     FillRectangle(drawto, gd_gi1->x, gd_gi1->y + gd_gi1->height + 1,
7856                   getTabulatorBarWidth(), ED_GADGET_DISTANCE,
7857                   tab_color);
7858 }
7859
7860 static void DrawLevelInfoLevel()
7861 {
7862   int i;
7863
7864   /* draw counter gadgets */
7865   for (i = ED_COUNTER_ID_LEVEL_FIRST; i <= ED_COUNTER_ID_LEVEL_LAST; i++)
7866     MapCounterButtons(i);
7867
7868   /* draw selectbox gadgets */
7869   for (i = ED_SELECTBOX_ID_LEVEL_FIRST; i <= ED_SELECTBOX_ID_LEVEL_LAST; i++)
7870     MapSelectboxGadget(i);
7871
7872   /* draw text input gadgets */
7873   for (i = ED_TEXTINPUT_ID_LEVEL_FIRST; i <= ED_TEXTINPUT_ID_LEVEL_LAST; i++)
7874     MapTextInputGadget(i);
7875 }
7876
7877 static void DrawLevelInfoEditor()
7878 {
7879   int i;
7880
7881   /* draw counter gadgets */
7882   for (i = ED_COUNTER_ID_EDITOR_FIRST; i <= ED_COUNTER_ID_EDITOR_LAST; i++)
7883     MapCounterButtons(i);
7884
7885   /* draw checkbutton gadgets */
7886   for (i=ED_CHECKBUTTON_ID_EDITOR_FIRST; i<= ED_CHECKBUTTON_ID_EDITOR_LAST; i++)
7887     MapCheckbuttonGadget(i);
7888
7889   /* draw radiobutton gadgets */
7890   for (i=ED_RADIOBUTTON_ID_EDITOR_FIRST; i<= ED_RADIOBUTTON_ID_EDITOR_LAST; i++)
7891     MapRadiobuttonGadget(i);
7892
7893   /* draw drawing area */
7894   MapDrawingArea(ED_DRAWING_ID_RANDOM_BACKGROUND);
7895 }
7896
7897 static void DrawLevelInfoWindow()
7898 {
7899   stick_element_properties_window = FALSE;
7900
7901   UnmapLevelEditorFieldGadgets();
7902
7903   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
7904   ClearField();
7905
7906   DrawTextSCentered(ED_SETTINGS1_YPOS, FONT_TITLE_1, "Global Settings");
7907
7908   DrawLevelInfoTabulatorGadgets();
7909
7910   if (edit_mode_levelinfo == ED_MODE_LEVELINFO_LEVEL)
7911     DrawLevelInfoLevel();
7912   else  /* (edit_mode_levelinfo == ED_MODE_LEVELINFO_EDITOR) */
7913     DrawLevelInfoEditor();
7914 }
7915
7916 static void DrawCustomContentArea()
7917 {
7918   int id = ED_DRAWING_ID_CUSTOM_CONTENT;
7919   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
7920   int x1 = right_gadget_border[GADGET_ID_CUSTOM_DEADLINESS];
7921   int x2 = right_gadget_border[GADGET_ID_CUSTOM_EXPLOSION_TYPE];
7922   int x3 = right_gadget_border[GADGET_ID_CUSTOM_EXPLODE_IMPACT];
7923   int xoffset = ED_DRAWINGAREA_TEXT_DISTANCE;
7924
7925   /* add distance for potential left text (without drawing area border) */
7926   x2 += getTextWidthForGadget(drawingarea_info[id].text_left);
7927
7928   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
7929
7930   MapDrawingArea(ED_DRAWING_ID_CUSTOM_CONTENT);
7931 }
7932
7933 static void DrawCustomChangeContentArea()
7934 {
7935   int id = ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT;
7936   struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[id].gadget_id];
7937   int x1 = right_gadget_border[GADGET_ID_CHANGE_USE_CONTENT];
7938   int x2 = right_gadget_border[GADGET_ID_CHANGE_REPLACE_WHEN];
7939   int x3 = right_gadget_border[GADGET_ID_CHANGE_ONLY_COMPLETE];
7940   int xoffset = ED_DRAWINGAREA_TEXT_DISTANCE;
7941
7942   ModifyGadget(gi, GDI_X, MAX(x1, MAX(x2, x3)) + xoffset, GDI_END);
7943
7944   MapDrawingArea(id);
7945 }
7946
7947 static void DrawYamYamContentAreas()
7948 {
7949   int x = SX + ED_AREA_YAMYAM_CONTENT_XPOS(3) + 4 * MINI_TILEX;
7950   int y = SY + ED_AREA_YAMYAM_CONTENT_YPOS(0) + ED_BORDER_AREA_YSIZE;
7951   int i;
7952
7953   /* display counter to choose number of element content areas */
7954   MapCounterButtons(ED_COUNTER_ID_YAMYAM_CONTENT);
7955
7956   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
7957   {
7958     int id = ED_DRAWING_ID_YAMYAM_CONTENT_0 + i;
7959
7960     if (i < level.num_yamyam_contents)
7961     {
7962       MapDrawingArea(id);
7963     }
7964     else
7965     {
7966       int font_height = getFontHeight(FONT_TEXT_1);
7967
7968       UnmapDrawingArea(id);
7969
7970       /* delete content areas in case of reducing number of them */
7971       DrawBackground(SX + drawingarea_info[id].x - MINI_TILEX / 2,
7972                      SY + drawingarea_info[id].y - MINI_TILEY / 2,
7973                      4 * MINI_TILEX,
7974                      4 * MINI_TILEY + ED_GADGET_TEXT_DISTANCE + font_height);
7975     }
7976   }
7977
7978   DrawText(x, y + 0 * MINI_TILEY, "content", FONT_TEXT_1);
7979   DrawText(x, y + 1 * MINI_TILEY, "when",    FONT_TEXT_1);
7980   DrawText(x, y + 2 * MINI_TILEY, "smashed", FONT_TEXT_1);
7981 }
7982
7983 static void DrawMagicBallContentAreas()
7984 {
7985   int x = SX + ED_AREA_MAGIC_BALL_CONTENT_XPOS(3) + 4 * MINI_TILEX;
7986   int y = SY + ED_AREA_MAGIC_BALL_CONTENT_YPOS(0) + ED_BORDER_AREA_YSIZE;
7987   int i;
7988
7989   /* display counter to choose number of element content areas */
7990   MapCounterButtons(ED_COUNTER_ID_BALL_CONTENT);
7991
7992   for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
7993   {
7994     int id = ED_DRAWING_ID_MAGIC_BALL_CONTENT_0 + i;
7995
7996     if (i < level.num_ball_contents)
7997     {
7998       MapDrawingArea(id);
7999     }
8000     else
8001     {
8002       int font_height = getFontHeight(FONT_TEXT_1);
8003
8004       UnmapDrawingArea(id);
8005
8006       /* delete content areas in case of reducing number of them */
8007       DrawBackground(SX + drawingarea_info[id].x - MINI_TILEX / 2,
8008                      SY + drawingarea_info[id].y - MINI_TILEY / 2,
8009                      4 * MINI_TILEX,
8010                      4 * MINI_TILEY + ED_GADGET_TEXT_DISTANCE + font_height);
8011     }
8012   }
8013
8014   DrawText(x, y + 0 * MINI_TILEY, "generated", FONT_TEXT_1);
8015   DrawText(x, y + 1 * MINI_TILEY, "when",      FONT_TEXT_1);
8016   DrawText(x, y + 2 * MINI_TILEY, "active",    FONT_TEXT_1);
8017 }
8018
8019 static void DrawAndroidElementArea(int element)
8020 {
8021   int num_elements = level.num_android_clone_elements;
8022   int id = ED_DRAWING_ID_ANDROID_CONTENT;
8023   int sx = SX + drawingarea_info[id].x - MINI_TILEX / 2;
8024   int sy = SY + drawingarea_info[id].y - MINI_TILEY / 2;
8025   int xsize = MAX_ANDROID_ELEMENTS;
8026   int ysize = 1;
8027
8028   /* display counter to choose number of element areas */
8029   MapCounterButtons(ED_COUNTER_ID_ANDROID_CONTENT);
8030
8031   if (drawingarea_info[id].text_left != NULL)
8032     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
8033
8034   UnmapDrawingArea(id);
8035
8036   ModifyEditorDrawingArea(id, num_elements, 1);
8037
8038   /* delete content areas in case of reducing number of them */
8039   DrawBackground(sx, sy, (xsize + 1) * MINI_TILEX, (ysize + 1) * MINI_TILEY);
8040
8041   MapDrawingArea(id);
8042 }
8043
8044 static void DrawGroupElementArea(int element)
8045 {
8046   int num_elements = group_element_info.num_elements;
8047   int id = ED_DRAWING_ID_GROUP_CONTENT;
8048   int bx = ED_ELEMENT_BORDER_INPUT;
8049   int by = ED_ELEMENT_BORDER_INPUT;
8050   int sx = SX + drawingarea_info[id].x - bx;
8051   int sy = SY + drawingarea_info[id].y - by;
8052   int xsize = MAX_ELEMENTS_IN_GROUP;
8053   int ysize = 1;
8054
8055   if (drawingarea_info[id].text_left != NULL)
8056     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
8057
8058   UnmapDrawingArea(id);
8059
8060   ModifyEditorDrawingArea(id, num_elements, 1);
8061
8062   /* delete content areas in case of reducing number of them */
8063   DrawBackground(sx, sy, xsize * MINI_TILEX + 2*bx, ysize * MINI_TILEY + 2*by);
8064
8065   MapDrawingArea(id);
8066 }
8067
8068 static void DrawPlayerInitialInventoryArea(int element)
8069 {
8070   int player_nr = GET_PLAYER_NR(element);
8071   int num_elements = level.initial_inventory_size[player_nr];
8072   int id = ED_DRAWING_ID_INVENTORY_CONTENT;
8073   int sx = SX + drawingarea_info[id].x - MINI_TILEX / 2;
8074   int sy = SY + drawingarea_info[id].y - MINI_TILEY / 2;
8075   int xsize = MAX_INITIAL_INVENTORY_SIZE;
8076   int ysize = 1;
8077
8078   /* determine horizontal position to the right of specified gadget */
8079   if (drawingarea_info[id].gadget_id_align != GADGET_ID_NONE)
8080     sx += (right_gadget_border[drawingarea_info[id].gadget_id_align] +
8081            ED_DRAWINGAREA_TEXT_DISTANCE);
8082
8083   /* determine horizontal offset for leading text */
8084   if (drawingarea_info[id].text_left != NULL)
8085     sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
8086
8087   UnmapDrawingArea(id);
8088
8089   ModifyEditorDrawingArea(id, num_elements, 1);
8090
8091   /* delete content areas in case of reducing number of them */
8092   DrawBackground(sx, sy, (xsize + 1) * MINI_TILEX, (ysize + 1) * MINI_TILEY);
8093
8094   MapDrawingArea(id);
8095 }
8096
8097 static void DrawEnvelopeTextArea(int envelope_nr)
8098 {
8099   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
8100   struct GadgetInfo *gi = level_editor_gadget[textarea_info[id].gadget_id];
8101
8102   UnmapGadget(gi);
8103   DrawBackground(gi->x, gi->y, gi->width, gi->height);
8104
8105   if (envelope_nr != -1)
8106     textarea_info[id].value = level.envelope[envelope_nr].text;
8107
8108   ModifyGadget(gi, GDI_AREA_SIZE,
8109                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_XSIZE].value,
8110                *counterbutton_info[ED_COUNTER_ID_ENVELOPE_YSIZE].value,
8111                GDI_END);
8112
8113   MapTextAreaGadget(ED_TEXTAREA_ID_ENVELOPE_INFO);
8114 }
8115
8116 static boolean PrintInfoText(char *text, int font_nr, int start_line)
8117 {
8118   int font_height = getFontHeight(font_nr);
8119   int pad_x = ED_ELEMENT_SETTINGS_XPOS(0);
8120   int pad_y = ED_ELEMENT_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
8121   int sx = SX + pad_x;
8122   int sy = SY + pad_y;
8123   int max_lines_per_screen = (SYSIZE - pad_y) / font_height - 1;
8124
8125   if (start_line >= max_lines_per_screen)
8126     return FALSE;
8127
8128   DrawText(sx, sy + start_line * font_height, text, font_nr);
8129
8130   return TRUE;
8131 }
8132
8133 static int PrintElementDescriptionFromFile(char *filename, int start_line)
8134 {
8135   int font_nr = FONT_TEXT_2;
8136   int font_width = getFontWidth(font_nr);
8137   int font_height = getFontHeight(font_nr);
8138   int pad_x = ED_ELEMENT_SETTINGS_XPOS(0);
8139   int pad_y = ED_ELEMENT_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
8140   int sx = SX + pad_x;
8141   int sy = SY + pad_y + start_line * font_height;
8142   int max_chars_per_line = (SXSIZE - 2 * pad_x) / font_width;
8143   int max_lines_per_screen = (SYSIZE - pad_y) / font_height - 1;
8144   int max_lines_drawable = max_lines_per_screen - start_line;
8145
8146   if (start_line >= max_lines_per_screen)
8147     return FALSE;
8148
8149   return DrawTextFile(sx, sy, filename, font_nr, max_chars_per_line, -1,
8150                       max_lines_drawable, 0, -1, TRUE, FALSE, FALSE);
8151 }
8152
8153 static void DrawPropertiesInfo()
8154 {
8155   static struct
8156   {
8157     int value;
8158     char *text;
8159   }
8160   properties[] =
8161   {
8162     /* configurable properties */
8163
8164     { EP_WALKABLE_OVER,         "- player can walk over it"             },
8165     { EP_WALKABLE_INSIDE,       "- player can walk inside it"           },
8166     { EP_WALKABLE_UNDER,        "- player can walk under it"            },
8167     { EP_PASSABLE_OVER,         "- player can pass over it"             },
8168     { EP_PASSABLE_INSIDE,       "- player can pass through it"          },
8169     { EP_PASSABLE_UNDER,        "- player can pass under it"            },
8170     { EP_PROTECTED,             "- player is protected by it"           },
8171
8172     { EP_DIGGABLE,              "- can be digged away"                  },
8173     { EP_COLLECTIBLE,           "- can be collected"                    },
8174     { EP_DROPPABLE,             "- can be dropped after collecting"     },
8175     { EP_THROWABLE,             "- can be thrown after collecting"      },
8176     { EP_PUSHABLE,              "- can be pushed"                       },
8177
8178     { EP_CAN_FALL,              "- can fall"                            },
8179     { EP_CAN_MOVE,              "- can move"                            },
8180
8181     { EP_CAN_SMASH_PLAYER,      "- can smash player"                    },
8182 #if 0
8183     { EP_CAN_SMASH_ENEMIES,     "- can smash good and bad guys"         },
8184 #endif
8185     { EP_CAN_SMASH_EVERYTHING,  "- can smash everything smashable"      },
8186
8187     { EP_SLIPPERY,              "- slippery for falling elements"       },
8188     { EP_EM_SLIPPERY_WALL,      "- slippery for some gems (EM style)"   },
8189
8190     { EP_DONT_RUN_INTO,         "- deadly when running into"            },
8191     { EP_DONT_COLLIDE_WITH,     "- deadly when colliding with"          },
8192     { EP_DONT_GET_HIT_BY,       "- deadly when getting hit by"          },
8193     { EP_DONT_TOUCH,            "- deadly when touching"                },
8194
8195     { EP_INDESTRUCTIBLE,        "- indestructible"                      },
8196
8197     { EP_CAN_EXPLODE_BY_FIRE,   "- can explode by fire or explosions"   },
8198     { EP_CAN_EXPLODE_SMASHED,   "- can explode when smashed"            },
8199     { EP_CAN_EXPLODE_IMPACT,    "- can explode on impact"               },
8200
8201     { EP_CAN_CHANGE,            "- can change to other element"         },
8202
8203     /* pre-defined properties */
8204     { EP_CAN_PASS_MAGIC_WALL,   "- can pass magic walls"                },
8205     { EP_CAN_PASS_DC_MAGIC_WALL,"- can pass magic walls (DC style)"     },
8206     { EP_SWITCHABLE,            "- can be switched"                     },
8207 #if 0
8208     { EP_HAS_EDITOR_CONTENT,    "- can contain other elements"          },
8209 #endif
8210
8211     { -1,                       NULL                                    }
8212   };
8213   char *filename = getElementDescriptionFilename(properties_element);
8214   char *percentage_text = "In this level: ";
8215   char *properties_text = "Standard properties: ";
8216   float percentage;
8217   int num_elements_in_level;
8218   int num_standard_properties = 0;
8219   int font1_nr = FONT_TEXT_1;
8220   int font2_nr = FONT_TEXT_2;
8221   int font1_width = getFontWidth(font1_nr);
8222   int font2_height = getFontHeight(font2_nr);
8223   int pad_x = ED_ELEMENT_SETTINGS_XPOS(0);
8224   int pad_y = ED_ELEMENT_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
8225   int screen_line = 0;
8226   int i, x, y;
8227
8228   if (setup.editor.show_element_token)
8229   {
8230     DrawTextF(pad_x, pad_y + screen_line++ * font2_height, FONT_TEXT_3,
8231               "[%s]", element_info[properties_element].token_name);
8232     screen_line++;
8233   }
8234
8235   /* ----- print number of elements / percentage of this element in level */
8236
8237   num_elements_in_level = 0;
8238   for (y = 0; y < lev_fieldy; y++)
8239     for (x = 0; x < lev_fieldx; x++)
8240       if (Feld[x][y] == properties_element)
8241         num_elements_in_level++;
8242   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
8243
8244   DrawTextS(pad_x, pad_y + screen_line * font2_height, font1_nr,
8245             percentage_text);
8246   DrawTextF(pad_x + strlen(percentage_text) * font1_width,
8247             pad_y + screen_line++ * font2_height, font2_nr,
8248             "%d (%.2f%%)", num_elements_in_level, percentage);
8249
8250   screen_line++;
8251
8252   /* ----- print standard properties of this element */
8253
8254   DrawTextS(pad_x, pad_y + screen_line++ * font2_height, font1_nr,
8255             properties_text);
8256
8257   for (i = 0; properties[i].value != -1; i++)
8258   {
8259     if (!HAS_PROPERTY(properties_element, properties[i].value))
8260       continue;
8261
8262     DrawTextS(pad_x, pad_y + screen_line++ * font2_height, font2_nr,
8263               properties[i].text);
8264     num_standard_properties++;
8265   }
8266
8267   if (num_standard_properties == 0)
8268     DrawTextS(pad_x + strlen(properties_text) * font1_width,
8269               pad_y + (screen_line - 1) * font2_height, font2_nr, "none");
8270
8271   screen_line++;
8272
8273   /* ----- print special description of this element */
8274
8275   PrintInfoText("Description:", FONT_TEXT_1, screen_line);
8276   if (PrintElementDescriptionFromFile(filename, screen_line + 1) == 0)
8277     PrintInfoText("No description available.", FONT_TEXT_1, screen_line);
8278 }
8279
8280 #define TEXT_COLLECTING         "Score for collecting"
8281 #define TEXT_SMASHING           "Score for smashing"
8282 #define TEXT_SLURPING           "Score for slurping robot"
8283 #define TEXT_CRACKING           "Score for cracking"
8284 #define TEXT_AMOEBA_SPEED       "Speed of amoeba growth"
8285 #define TEXT_DURATION           "Duration when activated"
8286 #define TEXT_BALL_DELAY         "Element generation delay"
8287 #define TEXT_MOVE_SPEED         "Speed of android moving"
8288 #define TEXT_CLONE_SPEED        "Speed of android cloning"
8289 #define TEXT_GAME_OF_LIFE_1     "Min neighbours to survive"
8290 #define TEXT_GAME_OF_LIFE_2     "Max neighbours to survive"
8291 #define TEXT_GAME_OF_LIFE_3     "Min neighbours to create"
8292 #define TEXT_GAME_OF_LIFE_4     "Max neighbours to create"
8293 #define TEXT_TIME_BONUS         "Extra time to solve level"
8294
8295 static struct
8296 {
8297   int element;
8298   int *value;
8299   char *text;
8300 } elements_with_counter[] =
8301 {
8302   { EL_EMERALD,         &level.score[SC_EMERALD],       TEXT_COLLECTING },
8303   { EL_BD_DIAMOND,      &level.score[SC_EMERALD],       TEXT_COLLECTING },
8304   { EL_EMERALD_YELLOW,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
8305   { EL_EMERALD_RED,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
8306   { EL_EMERALD_PURPLE,  &level.score[SC_EMERALD],       TEXT_COLLECTING },
8307   { EL_SP_INFOTRON,     &level.score[SC_EMERALD],       TEXT_COLLECTING },
8308   { EL_DIAMOND,         &level.score[SC_DIAMOND],       TEXT_COLLECTING },
8309   { EL_CRYSTAL,         &level.score[SC_CRYSTAL],       TEXT_COLLECTING },
8310   { EL_PEARL,           &level.score[SC_PEARL],         TEXT_COLLECTING },
8311   { EL_BUG,             &level.score[SC_BUG],           TEXT_SMASHING   },
8312   { EL_BUG_RIGHT,       &level.score[SC_BUG],           TEXT_SMASHING   },
8313   { EL_BUG_UP,          &level.score[SC_BUG],           TEXT_SMASHING   },
8314   { EL_BUG_LEFT,        &level.score[SC_BUG],           TEXT_SMASHING   },
8315   { EL_BUG_DOWN,        &level.score[SC_BUG],           TEXT_SMASHING   },
8316   { EL_BD_BUTTERFLY,    &level.score[SC_BUG],           TEXT_SMASHING   },
8317   { EL_BD_BUTTERFLY_RIGHT,&level.score[SC_BUG],         TEXT_SMASHING   },
8318   { EL_BD_BUTTERFLY_UP,   &level.score[SC_BUG],         TEXT_SMASHING   },
8319   { EL_BD_BUTTERFLY_LEFT, &level.score[SC_BUG],         TEXT_SMASHING   },
8320   { EL_BD_BUTTERFLY_DOWN, &level.score[SC_BUG],         TEXT_SMASHING   },
8321   { EL_SP_ELECTRON,     &level.score[SC_BUG],           TEXT_SMASHING   },
8322   { EL_SPACESHIP,       &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8323   { EL_SPACESHIP_RIGHT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8324   { EL_SPACESHIP_UP,    &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8325   { EL_SPACESHIP_LEFT,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8326   { EL_SPACESHIP_DOWN,  &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8327   { EL_BD_FIREFLY,      &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8328   { EL_BD_FIREFLY_RIGHT,&level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8329   { EL_BD_FIREFLY_UP,   &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8330   { EL_BD_FIREFLY_LEFT, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8331   { EL_BD_FIREFLY_DOWN, &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8332   { EL_SP_SNIKSNAK,     &level.score[SC_SPACESHIP],     TEXT_SMASHING   },
8333   { EL_YAMYAM,          &level.score[SC_YAMYAM],        TEXT_SMASHING   },
8334   { EL_YAMYAM_LEFT,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
8335   { EL_YAMYAM_RIGHT,    &level.score[SC_YAMYAM],        TEXT_SMASHING   },
8336   { EL_YAMYAM_UP,       &level.score[SC_YAMYAM],        TEXT_SMASHING   },
8337   { EL_YAMYAM_DOWN,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
8338   { EL_DARK_YAMYAM,     &level.score[SC_YAMYAM],        TEXT_SMASHING   },
8339   { EL_ROBOT,           &level.score[SC_ROBOT],         TEXT_SMASHING   },
8340   { EL_PACMAN,          &level.score[SC_PACMAN],        TEXT_SMASHING   },
8341   { EL_PACMAN_RIGHT,    &level.score[SC_PACMAN],        TEXT_SMASHING   },
8342   { EL_PACMAN_UP,       &level.score[SC_PACMAN],        TEXT_SMASHING   },
8343   { EL_PACMAN_LEFT,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
8344   { EL_PACMAN_DOWN,     &level.score[SC_PACMAN],        TEXT_SMASHING   },
8345   { EL_NUT,             &level.score[SC_NUT],           TEXT_CRACKING   },
8346   { EL_DYNAMITE,        &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
8347   { EL_EM_DYNAMITE,     &level.score[SC_DYNAMITE],      TEXT_COLLECTING },
8348   { EL_DYNABOMB_INCREASE_NUMBER,&level.score[SC_DYNAMITE],TEXT_COLLECTING },
8349   { EL_DYNABOMB_INCREASE_SIZE,  &level.score[SC_DYNAMITE],TEXT_COLLECTING },
8350   { EL_DYNABOMB_INCREASE_POWER, &level.score[SC_DYNAMITE],TEXT_COLLECTING },
8351   { EL_SHIELD_NORMAL,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
8352   { EL_SHIELD_DEADLY,   &level.score[SC_SHIELD],        TEXT_COLLECTING },
8353   { EL_EXTRA_TIME,      &level.extra_time_score,        TEXT_COLLECTING },
8354   { EL_KEY_1,           &level.score[SC_KEY],           TEXT_COLLECTING },
8355   { EL_KEY_2,           &level.score[SC_KEY],           TEXT_COLLECTING },
8356   { EL_KEY_3,           &level.score[SC_KEY],           TEXT_COLLECTING },
8357   { EL_KEY_4,           &level.score[SC_KEY],           TEXT_COLLECTING },
8358   { EL_EM_KEY_1,        &level.score[SC_KEY],           TEXT_COLLECTING },
8359   { EL_EM_KEY_2,        &level.score[SC_KEY],           TEXT_COLLECTING },
8360   { EL_EM_KEY_3,        &level.score[SC_KEY],           TEXT_COLLECTING },
8361   { EL_EM_KEY_4,        &level.score[SC_KEY],           TEXT_COLLECTING },
8362   { EL_EMC_KEY_5,       &level.score[SC_KEY],           TEXT_COLLECTING },
8363   { EL_EMC_KEY_6,       &level.score[SC_KEY],           TEXT_COLLECTING },
8364   { EL_EMC_KEY_7,       &level.score[SC_KEY],           TEXT_COLLECTING },
8365   { EL_EMC_KEY_8,       &level.score[SC_KEY],           TEXT_COLLECTING },
8366   { EL_DC_KEY_WHITE,    &level.score[SC_KEY],           TEXT_COLLECTING },
8367   { EL_AMOEBA_WET,      &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
8368   { EL_AMOEBA_DRY,      &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
8369   { EL_AMOEBA_FULL,     &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
8370   { EL_BD_AMOEBA,       &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
8371   { EL_EMC_DRIPPER,     &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
8372   { EL_MAGIC_WALL,      &level.time_magic_wall,         TEXT_DURATION   },
8373   { EL_BD_MAGIC_WALL,   &level.time_magic_wall,         TEXT_DURATION   },
8374   { EL_DC_MAGIC_WALL,   &level.time_magic_wall,         TEXT_DURATION   },
8375   { EL_ROBOT_WHEEL,     &level.time_wheel,              TEXT_DURATION   },
8376
8377   { EL_TIMEGATE_SWITCH,   &level.time_timegate,         TEXT_DURATION   },
8378   { EL_DC_TIMEGATE_SWITCH,&level.time_timegate,         TEXT_DURATION   },
8379   { EL_LIGHT_SWITCH,    &level.time_light,              TEXT_DURATION   },
8380   { EL_LIGHT_SWITCH_ACTIVE, &level.time_light,          TEXT_DURATION   },
8381   { EL_SHIELD_NORMAL,   &level.shield_normal_time,      TEXT_DURATION   },
8382   { EL_SHIELD_DEADLY,   &level.shield_deadly_time,      TEXT_DURATION   },
8383   { EL_EXTRA_TIME,      &level.extra_time,              TEXT_TIME_BONUS },
8384   { EL_TIME_ORB_FULL,   &level.time_orb_time,           TEXT_TIME_BONUS },
8385   { EL_GAME_OF_LIFE,    &level.game_of_life[0],         TEXT_GAME_OF_LIFE_1 },
8386   { EL_GAME_OF_LIFE,    &level.game_of_life[1],         TEXT_GAME_OF_LIFE_2 },
8387   { EL_GAME_OF_LIFE,    &level.game_of_life[2],         TEXT_GAME_OF_LIFE_3 },
8388   { EL_GAME_OF_LIFE,    &level.game_of_life[3],         TEXT_GAME_OF_LIFE_4 },
8389   { EL_BIOMAZE,         &level.biomaze[0],              TEXT_GAME_OF_LIFE_1 },
8390   { EL_BIOMAZE,         &level.biomaze[1],              TEXT_GAME_OF_LIFE_2 },
8391   { EL_BIOMAZE,         &level.biomaze[2],              TEXT_GAME_OF_LIFE_3 },
8392   { EL_BIOMAZE,         &level.biomaze[3],              TEXT_GAME_OF_LIFE_4 },
8393
8394   { EL_EMC_ANDROID,     &level.android_move_time,       TEXT_MOVE_SPEED },
8395   { EL_EMC_ANDROID,     &level.android_clone_time,      TEXT_CLONE_SPEED },
8396   { EL_EMC_MAGIC_BALL,  &level.ball_time,               TEXT_BALL_DELAY },
8397   { EL_EMC_LENSES,      &level.lenses_score,            TEXT_COLLECTING },
8398   { EL_EMC_MAGNIFIER,   &level.magnify_score,           TEXT_COLLECTING },
8399   { EL_SPRING,          &level.slurp_score,             TEXT_SLURPING   },
8400   { EL_EMC_LENSES,      &level.lenses_time,             TEXT_DURATION   },
8401   { EL_EMC_MAGNIFIER,   &level.magnify_time,            TEXT_DURATION   },
8402
8403   { -1,                 NULL,                           NULL            }
8404 };
8405
8406 static boolean checkPropertiesConfig(int element)
8407 {
8408   int i;
8409
8410   if (IS_GEM(element) ||
8411       IS_CUSTOM_ELEMENT(element) ||
8412       IS_GROUP_ELEMENT(element) ||
8413       IS_ENVELOPE(element) ||
8414       ELEM_IS_PLAYER(element) ||
8415       HAS_EDITOR_CONTENT(element) ||
8416       CAN_GROW(element) ||
8417       COULD_MOVE_INTO_ACID(element) ||
8418       MAYBE_DONT_COLLIDE_WITH(element) ||
8419       element == EL_SOKOBAN_OBJECT ||
8420       element == EL_SOKOBAN_FIELD_EMPTY ||
8421       element == EL_SOKOBAN_FIELD_FULL)
8422     return TRUE;
8423   else
8424     for (i = 0; elements_with_counter[i].element != -1; i++)
8425       if (elements_with_counter[i].element == element)
8426         return TRUE;
8427
8428   return FALSE;
8429 }
8430
8431 static void DrawPropertiesConfig()
8432 {
8433   boolean draw_footer_line = FALSE;
8434   int max_num_element_counters = 4;
8435   int num_element_counters = 0;
8436   int i;
8437
8438   if (!checkPropertiesConfig(properties_element))
8439   {
8440     PrintInfoText("No configuration options available.", FONT_TEXT_1, 0);
8441
8442     return;
8443   }
8444
8445   /* check if there are elements where a value can be chosen for */
8446   for (i = 0; elements_with_counter[i].element != -1; i++)
8447   {
8448     if (elements_with_counter[i].element == properties_element)
8449     {
8450       int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
8451
8452       counterbutton_info[counter_id].y =
8453         ED_ELEMENT_SETTINGS_YPOS(
8454                 (HAS_EDITOR_CONTENT(properties_element)      ? 1 : 0) +
8455                 (CAN_GROW(properties_element)                ? 1 : 0) +
8456                 (COULD_MOVE_INTO_ACID(properties_element)    ? 1 : 0) +
8457                 (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0) +
8458                 (properties_element == EL_EMC_MAGIC_BALL     ? 2 : 0) +
8459                 num_element_counters);
8460
8461       counterbutton_info[counter_id].value = elements_with_counter[i].value;
8462       counterbutton_info[counter_id].text_right= elements_with_counter[i].text;
8463
8464       if (properties_element == EL_GAME_OF_LIFE ||
8465           properties_element == EL_BIOMAZE)
8466       {
8467         counterbutton_info[counter_id].min_value = 0;   /* min neighbours */
8468         counterbutton_info[counter_id].max_value = 8;   /* max neighbours */
8469       }
8470       else
8471       {
8472         /* !!! CHANGE THIS FOR CERTAIN ELEMENTS !!! */
8473         counterbutton_info[counter_id].min_value = MIN_SCORE;
8474         counterbutton_info[counter_id].max_value = MAX_SCORE;
8475       }
8476
8477       MapCounterButtons(counter_id);
8478
8479       num_element_counters++;
8480       if (num_element_counters >= max_num_element_counters)
8481         break;
8482     }
8483   }
8484
8485   if (HAS_EDITOR_CONTENT(properties_element))
8486   {
8487     /* draw stickybutton gadget */
8488     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
8489
8490     if (IS_AMOEBOID(properties_element))
8491       MapDrawingArea(ED_DRAWING_ID_AMOEBA_CONTENT);
8492     else if (properties_element == EL_YAMYAM ||
8493              properties_element == EL_YAMYAM_LEFT ||
8494              properties_element == EL_YAMYAM_RIGHT ||
8495              properties_element == EL_YAMYAM_UP ||
8496              properties_element == EL_YAMYAM_DOWN)
8497       DrawYamYamContentAreas();
8498     else if (properties_element == EL_EMC_MAGIC_BALL)
8499     {
8500       DrawMagicBallContentAreas();
8501
8502       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_RANDOM_BALL_CONTENT);
8503       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_BALL_STATE);
8504     }
8505     else if (properties_element == EL_EMC_ANDROID)
8506       DrawAndroidElementArea(properties_element);
8507   }
8508
8509   if (ELEM_IS_PLAYER(properties_element))
8510   {
8511     int player_nr = GET_PLAYER_NR(properties_element);
8512
8513     /* these properties can be set for every player individually */
8514
8515     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
8516     {
8517       drawingarea_info[ED_DRAWING_ID_START_ELEMENT].value =
8518         &level.start_element[player_nr];
8519       drawingarea_info[ED_DRAWING_ID_ARTWORK_ELEMENT].value =
8520         &level.artwork_element[player_nr];
8521       drawingarea_info[ED_DRAWING_ID_EXPLOSION_ELEMENT].value =
8522         &level.explosion_element[player_nr];
8523
8524       checkbutton_info[ED_CHECKBUTTON_ID_USE_START_ELEMENT].value =
8525         &level.use_start_element[player_nr];
8526       checkbutton_info[ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT].value =
8527         &level.use_artwork_element[player_nr];
8528       checkbutton_info[ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT].value =
8529         &level.use_explosion_element[player_nr];
8530       checkbutton_info[ED_CHECKBUTTON_ID_INITIAL_GRAVITY].value =
8531         &level.initial_player_gravity[player_nr];
8532
8533       selectbox_info[ED_SELECTBOX_ID_PLAYER_SPEED].value =
8534         &level.initial_player_stepsize[player_nr];
8535
8536       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID);
8537       MapCheckbuttonGadget(properties_element == EL_SP_MURPHY ?
8538                            ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD :
8539                            ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
8540       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
8541       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
8542       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
8543       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
8544       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
8545       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
8546       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
8547       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INITIAL_GRAVITY);
8548       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
8549
8550       MapDrawingArea(ED_DRAWING_ID_START_ELEMENT);
8551       MapDrawingArea(ED_DRAWING_ID_ARTWORK_ELEMENT);
8552       MapDrawingArea(ED_DRAWING_ID_EXPLOSION_ELEMENT);
8553
8554       MapSelectboxGadget(ED_SELECTBOX_ID_PLAYER_SPEED);
8555     }
8556     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
8557     {
8558       drawingarea_info[ED_DRAWING_ID_INVENTORY_CONTENT].value =
8559         &level.initial_inventory_content[player_nr][0];
8560
8561       counterbutton_info[ED_COUNTER_ID_INVENTORY_SIZE].value =
8562         &level.initial_inventory_size[player_nr];
8563
8564       checkbutton_info[ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY].value =
8565         &level.use_initial_inventory[player_nr];
8566
8567       /* draw checkbutton gadgets */
8568       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
8569
8570       /* draw counter gadgets */
8571       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
8572
8573       /* draw drawing area gadgets */
8574       DrawPlayerInitialInventoryArea(properties_element);
8575     }
8576   }
8577
8578   if (IS_GEM(properties_element))
8579     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS);
8580
8581   if (properties_element == EL_EM_DYNAMITE)
8582     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
8583
8584   if (COULD_MOVE_INTO_ACID(properties_element) &&
8585       !ELEM_IS_PLAYER(properties_element) &&
8586       (!IS_CUSTOM_ELEMENT(properties_element) ||
8587        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
8588   {
8589     /* set position for checkbutton for "can move into acid" */
8590     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
8591       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
8592     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
8593       ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 6 :
8594                        HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
8595
8596     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
8597   }
8598
8599   if (MAYBE_DONT_COLLIDE_WITH(properties_element))
8600     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH);
8601
8602   if (properties_element == EL_SPRING)
8603     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_SPRING_BUG);
8604
8605   if (properties_element == EL_TIME_ORB_FULL)
8606     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_TIME_ORB_BUG);
8607
8608   if (CAN_GROW(properties_element))
8609   {
8610     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
8611       ED_ELEMENT_SETTINGS_YPOS(HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
8612
8613     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
8614   }
8615
8616   if (properties_element == EL_SOKOBAN_OBJECT ||
8617       properties_element == EL_SOKOBAN_FIELD_EMPTY ||
8618       properties_element == EL_SOKOBAN_FIELD_FULL)
8619     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN);
8620
8621   if (IS_ENVELOPE(properties_element))
8622   {
8623     int counter1_id = ED_COUNTER_ID_ENVELOPE_XSIZE;
8624     int counter2_id = ED_COUNTER_ID_ENVELOPE_YSIZE;
8625     int button1_id = ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP;
8626     int button2_id = ED_CHECKBUTTON_ID_ENVELOPE_CENTERED;
8627     int envelope_nr = properties_element - EL_ENVELOPE_1;
8628
8629     counterbutton_info[counter1_id].value = &level.envelope[envelope_nr].xsize;
8630     counterbutton_info[counter2_id].value = &level.envelope[envelope_nr].ysize;
8631
8632     checkbutton_info[button1_id].value = &level.envelope[envelope_nr].autowrap;
8633     checkbutton_info[button2_id].value = &level.envelope[envelope_nr].centered;
8634
8635     /* display counter to choose size of envelope text area */
8636     MapCounterButtons(counter1_id);
8637     MapCounterButtons(counter2_id);
8638
8639     /* display checkbuttons to choose auto-wrap and alignment properties */
8640     MapCheckbuttonGadget(button1_id);
8641     MapCheckbuttonGadget(button2_id);
8642
8643     DrawEnvelopeTextArea(envelope_nr);
8644   }
8645
8646   if (IS_CUSTOM_ELEMENT(properties_element))
8647   {
8648     /* draw stickybutton gadget */
8649     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
8650
8651     if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_1)
8652     {
8653       /* draw checkbutton gadgets */
8654       for (i =  ED_CHECKBUTTON_ID_CUSTOM1_FIRST;
8655            i <= ED_CHECKBUTTON_ID_CUSTOM1_LAST; i++)
8656         MapCheckbuttonGadget(i);
8657
8658       /* draw counter gadgets */
8659       for (i =  ED_COUNTER_ID_CUSTOM1_FIRST;
8660            i <= ED_COUNTER_ID_CUSTOM1_LAST; i++)
8661         MapCounterButtons(i);
8662
8663       /* draw selectbox gadgets */
8664       for (i =  ED_SELECTBOX_ID_CUSTOM1_FIRST;
8665            i <= ED_SELECTBOX_ID_CUSTOM1_LAST; i++)
8666         MapSelectboxGadget(i);
8667
8668       /* draw textbutton gadgets */
8669       MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE);
8670
8671       /* draw text input gadgets */
8672       MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
8673
8674       /* draw drawing area gadgets */
8675       MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
8676
8677       draw_footer_line = TRUE;
8678     }
8679     else if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2)
8680     {
8681       /* draw checkbutton gadgets */
8682       for (i =  ED_CHECKBUTTON_ID_CUSTOM2_FIRST;
8683            i <= ED_CHECKBUTTON_ID_CUSTOM2_LAST; i++)
8684         MapCheckbuttonGadget(i);
8685
8686       /* draw counter gadgets */
8687       for (i =  ED_COUNTER_ID_CUSTOM2_FIRST;
8688            i <= ED_COUNTER_ID_CUSTOM2_LAST; i++)
8689         MapCounterButtons(i);
8690
8691       /* draw selectbox gadgets */
8692       for (i =  ED_SELECTBOX_ID_CUSTOM2_FIRST;
8693            i <= ED_SELECTBOX_ID_CUSTOM2_LAST; i++)
8694         MapSelectboxGadget(i);
8695
8696       /* draw drawing area gadgets */
8697       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_ENTER);
8698       MapDrawingArea(ED_DRAWING_ID_CUSTOM_MOVE_LEAVE);
8699       DrawCustomContentArea();
8700     }
8701   }
8702   else if (IS_GROUP_ELEMENT(properties_element))
8703   {
8704     /* draw stickybutton gadget */
8705     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
8706
8707     /* draw checkbutton gadgets */
8708     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC);
8709     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE);
8710
8711     /* draw counter gadgets */
8712     MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
8713
8714     /* draw selectbox gadgets */
8715     MapSelectboxGadget(ED_SELECTBOX_ID_GROUP_CHOICE_MODE);
8716
8717     /* draw textbutton gadgets */
8718     MapTextbuttonGadget(ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE);
8719
8720     /* draw drawing area gadgets */
8721     DrawGroupElementArea(properties_element);
8722
8723     /* draw text input gadgets */
8724     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
8725
8726     /* draw drawing area gadgets */
8727     MapDrawingArea(ED_DRAWING_ID_CUSTOM_GRAPHIC);
8728
8729     draw_footer_line = TRUE;
8730   }
8731
8732   /* draw little footer border line above CE/GE use/save template gadgets */
8733   if (draw_footer_line)
8734   {
8735     struct GadgetInfo *gd_gi1 = level_editor_gadget[GADGET_ID_PROPERTIES_INFO];
8736     struct GadgetDesign *gd = &gd_gi1->alt_design[GD_BUTTON_UNPRESSED];
8737     int gd_x = gd->x + gd_gi1->border.width / 2;
8738     int gd_y = gd->y + gd_gi1->height - 1;
8739     Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
8740
8741     if (tab_color != BLACK_PIXEL)               /* black => transparent */
8742       FillRectangle(drawto,
8743                     SX + ED_ELEMENT_SETTINGS_XPOS(0),
8744                     SY + ED_ELEMENT_SETTINGS_YPOS(14) - MINI_TILEY / 2,
8745                     getTabulatorBarWidth(), ED_GADGET_DISTANCE,
8746                     tab_color);
8747   }
8748 }
8749
8750 static void DrawPropertiesChangeDrawingAreas()
8751 {
8752   if (IS_CUSTOM_ELEMENT(properties_element))
8753   {
8754     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TARGET);
8755     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER);
8756     MapDrawingArea(ED_DRAWING_ID_CUSTOM_CHANGE_ACTION);
8757
8758     DrawCustomChangeContentArea();
8759   }
8760
8761   redraw_mask |= REDRAW_FIELD;
8762 }
8763
8764 static void DrawPropertiesChange()
8765 {
8766   int i;
8767
8768   /* needed to initially set selectbox options for special action options */
8769   setSelectboxSpecialActionOptions();
8770
8771   /* draw stickybutton gadget */
8772   MapCheckbuttonGadget(ED_CHECKBUTTON_ID_STICK_ELEMENT);
8773
8774   /* draw checkbutton gadgets */
8775   for (i =  ED_CHECKBUTTON_ID_CHANGE_FIRST;
8776        i <= ED_CHECKBUTTON_ID_CHANGE_LAST; i++)
8777     MapCheckbuttonGadget(i);
8778
8779   /* draw counter gadgets */
8780   for (i =  ED_COUNTER_ID_CHANGE_FIRST;
8781        i <= ED_COUNTER_ID_CHANGE_LAST; i++)
8782     MapCounterButtons(i);
8783
8784   /* draw selectbox gadgets */
8785   for (i =  ED_SELECTBOX_ID_CHANGE_FIRST;
8786        i <= ED_SELECTBOX_ID_CHANGE_LAST; i++)
8787     MapSelectboxGadget(i);
8788
8789   /* draw textbutton gadgets */
8790   for (i =  ED_TEXTBUTTON_ID_CHANGE_FIRST;
8791        i <= ED_TEXTBUTTON_ID_CHANGE_LAST; i++)
8792     MapTextbuttonGadget(i);
8793
8794   /* draw graphicbutton gadgets */
8795   for (i =  ED_GRAPHICBUTTON_ID_CHANGE_FIRST;
8796        i <= ED_GRAPHICBUTTON_ID_CHANGE_LAST; i++)
8797     MapGraphicbuttonGadget(i);
8798
8799   /* draw drawing area gadgets */
8800   DrawPropertiesChangeDrawingAreas();
8801 }
8802
8803 static void DrawEditorElementAnimation(int x, int y)
8804 {
8805   int graphic = el2img(properties_element);
8806   int frame = (ANIM_MODE(graphic) == ANIM_CE_VALUE ?
8807                custom_element.ce_value_fixed_initial :
8808                ANIM_MODE(graphic) == ANIM_CE_SCORE ?
8809                custom_element.collect_score_initial : FrameCounter);
8810
8811   DrawFixedGraphicAnimationExt(drawto, x, y, graphic, frame, NO_MASKING);
8812 }
8813
8814 static void DrawEditorElementName(int x, int y, int element)
8815 {
8816   char *element_name = getElementInfoText(element);
8817   int font_nr = FONT_TEXT_1;
8818   int font_width = getFontWidth(font_nr);
8819   int font_height = getFontHeight(font_nr);
8820   int max_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_XPOS(0);
8821   int max_chars_per_line = max_text_width / font_width;
8822   char buffer[max_chars_per_line + 1];
8823
8824   if (strlen(element_name) <= max_chars_per_line)
8825     DrawTextS(x, y, font_nr, element_name);
8826   else
8827   {
8828     int next_pos = max_chars_per_line;
8829
8830     strncpy(buffer, element_name, max_chars_per_line);
8831     buffer[max_chars_per_line] = '\0';
8832
8833     if (element_name[max_chars_per_line] == ' ')
8834       next_pos++;
8835     else
8836     {
8837       int i;
8838
8839       for (i = max_chars_per_line - 1; i >= 0; i--)
8840         if (buffer[i] == ' ')
8841           break;
8842
8843       if (strlen(&element_name[i + 1]) <= max_chars_per_line)
8844       {
8845         buffer[i] = '\0';
8846         next_pos = i + 1;
8847       }
8848     }
8849
8850     DrawTextS(x, y - font_height / 2, font_nr, buffer);
8851
8852     strncpy(buffer, &element_name[next_pos], max_chars_per_line);
8853     buffer[max_chars_per_line] = '\0';
8854
8855     DrawTextS(x, y + font_height / 2, font_nr, buffer);
8856   }
8857 }
8858
8859 static void DrawPropertiesWindow()
8860 {
8861   int xstart = 2;
8862   int ystart = 4;
8863
8864   stick_element_properties_window = FALSE;
8865
8866   /* make sure that previous properties edit mode exists for this element */
8867   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG_2 &&
8868       !IS_CUSTOM_ELEMENT(properties_element))
8869     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
8870
8871   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
8872       !ELEM_IS_PLAYER(properties_element) &&
8873       !IS_CUSTOM_ELEMENT(properties_element))
8874     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
8875
8876   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
8877       (ELEM_IS_PLAYER(properties_element) ||
8878        IS_CUSTOM_ELEMENT(properties_element)))
8879     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
8880
8881   CopyElementPropertiesToEditor(properties_element);
8882
8883   UnmapLevelEditorFieldGadgets();
8884   UnmapLevelEditorToolboxDrawingGadgets();
8885   UnmapLevelEditorToolboxCustomGadgets();
8886
8887   if (IS_CUSTOM_ELEMENT(properties_element) ||
8888       IS_GROUP_ELEMENT(properties_element))
8889     MapLevelEditorToolboxCustomGadgets();
8890
8891   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
8892   ClearField();
8893
8894   DrawTextSCentered(ED_SETTINGS1_YPOS, FONT_TITLE_1, "Element Settings");
8895
8896   FrameCounter = 0;     /* restart animation frame counter */
8897
8898   DrawElementBorder(SX + xstart * MINI_TILEX,
8899                     SY + ystart * MINI_TILEY + MINI_TILEY / 2,
8900                     TILEX, TILEY, FALSE);
8901
8902   DrawEditorElementAnimation(SX + xstart * MINI_TILEX,
8903                              SY + ystart * MINI_TILEY + MINI_TILEY / 2);
8904
8905   DrawEditorElementName((xstart + 3) * MINI_TILEX + 1,
8906                         (ystart + 1) * MINI_TILEY + 1,
8907                         properties_element);
8908
8909   DrawPropertiesTabulatorGadgets();
8910
8911   if (edit_mode_properties == ED_MODE_PROPERTIES_INFO)
8912     DrawPropertiesInfo();
8913   else if (edit_mode_properties == ED_MODE_PROPERTIES_CHANGE)
8914     DrawPropertiesChange();
8915   else  /* (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG[_1|_2]) */
8916     DrawPropertiesConfig();
8917 }
8918
8919 static void UpdateCustomElementGraphicGadgets()
8920 {
8921   struct ElementInfo *ei = &element_info[properties_element];
8922   int i;
8923
8924   ei->gfx_element = (ei->use_gfx_element ? ei->gfx_element_initial :
8925                      properties_element);
8926
8927   ModifyEditorElementList();
8928   RedrawDrawingElements();
8929
8930   /* force redraw of all mapped drawing area gadgets */
8931   for (i = 0; i < ED_NUM_DRAWING_AREAS; i++)
8932   {
8933     struct GadgetInfo *gi = level_editor_gadget[drawingarea_info[i].gadget_id];
8934
8935     if (gi->mapped)
8936       MapDrawingArea(i);
8937   }
8938 }
8939
8940 static int getOpenDirectionFromTube(int element)
8941 {
8942   switch (element)
8943   {
8944     case EL_TUBE_LEFT_UP:               return (MV_LEFT | MV_UP);
8945     case EL_TUBE_LEFT_DOWN:             return (MV_LEFT | MV_DOWN);
8946     case EL_TUBE_RIGHT_UP:              return (MV_RIGHT | MV_UP);
8947     case EL_TUBE_RIGHT_DOWN:            return (MV_RIGHT | MV_DOWN);
8948     case EL_TUBE_HORIZONTAL:            return (MV_HORIZONTAL);
8949     case EL_TUBE_HORIZONTAL_UP:         return (MV_HORIZONTAL | MV_UP);
8950     case EL_TUBE_HORIZONTAL_DOWN:       return (MV_HORIZONTAL | MV_DOWN);
8951     case EL_TUBE_VERTICAL:              return (MV_VERTICAL);
8952     case EL_TUBE_VERTICAL_LEFT:         return (MV_VERTICAL | MV_LEFT);
8953     case EL_TUBE_VERTICAL_RIGHT:        return (MV_VERTICAL | MV_RIGHT);
8954     case EL_TUBE_ANY:                   return (MV_ANY_DIRECTION);
8955   }
8956
8957   return MV_NONE;
8958 }
8959
8960 static int getTubeFromOpenDirection(int direction)
8961 {
8962   switch (direction)
8963   {
8964     case (MV_LEFT | MV_UP):             return EL_TUBE_LEFT_UP;
8965     case (MV_LEFT | MV_DOWN):           return EL_TUBE_LEFT_DOWN;
8966     case (MV_RIGHT | MV_UP):            return EL_TUBE_RIGHT_UP;
8967     case (MV_RIGHT | MV_DOWN):          return EL_TUBE_RIGHT_DOWN;
8968     case (MV_HORIZONTAL):               return EL_TUBE_HORIZONTAL;
8969     case (MV_HORIZONTAL | MV_UP):       return EL_TUBE_HORIZONTAL_UP;
8970     case (MV_HORIZONTAL | MV_DOWN):     return EL_TUBE_HORIZONTAL_DOWN;
8971     case (MV_VERTICAL):                 return EL_TUBE_VERTICAL;
8972     case (MV_VERTICAL | MV_LEFT):       return EL_TUBE_VERTICAL_LEFT;
8973     case (MV_VERTICAL | MV_RIGHT):      return EL_TUBE_VERTICAL_RIGHT;
8974     case (MV_ANY_DIRECTION):            return EL_TUBE_ANY;
8975
8976     /* if only one direction, fall back to simple tube with that direction */
8977     case (MV_LEFT):                     return EL_TUBE_HORIZONTAL;
8978     case (MV_RIGHT):                    return EL_TUBE_HORIZONTAL;
8979     case (MV_UP):                       return EL_TUBE_VERTICAL;
8980     case (MV_DOWN):                     return EL_TUBE_VERTICAL;
8981   }
8982
8983   return EL_EMPTY;
8984 }
8985
8986 static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
8987 {
8988   int element_new = getTubeFromOpenDirection(direction);
8989
8990   return (element_new != EL_EMPTY ? element_new : element_old);
8991 }
8992
8993 static int getOpenDirectionFromBelt(int element)
8994 {
8995   int belt_dir = getBeltDirFromBeltElement(element);
8996
8997   return (belt_dir == MV_LEFT ? MV_RIGHT :
8998           belt_dir == MV_RIGHT ? MV_LEFT :
8999           belt_dir == MV_NONE ? MV_HORIZONTAL : belt_dir);
9000 }
9001
9002 static int getBeltFromNrAndOpenDirection(int nr, int direction)
9003 {
9004   int belt_dir = (direction == MV_LEFT ? MV_RIGHT :
9005                   direction == MV_RIGHT ? MV_LEFT :
9006                   direction == MV_HORIZONTAL ? MV_NONE : direction);
9007
9008   if (direction == MV_NONE)
9009     return EL_EMPTY;
9010
9011   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
9012 }
9013
9014 static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
9015                                                  int element_old)
9016 {
9017   int element_new = getBeltFromNrAndOpenDirection(nr, direction);
9018
9019   return (element_new != EL_EMPTY ? element_new : element_old);
9020 }
9021
9022 static int getOpenDirectionFromPool(int element)
9023 {
9024   switch (element)
9025   {
9026     case EL_ACID_POOL_TOPLEFT:          return (MV_DOWN | MV_RIGHT);
9027     case EL_ACID_POOL_TOPRIGHT:         return (MV_DOWN | MV_LEFT);
9028     case EL_ACID_POOL_BOTTOMLEFT:       return (MV_UP | MV_RIGHT);
9029     case EL_ACID_POOL_BOTTOMRIGHT:      return (MV_UP | MV_LEFT);
9030     case EL_ACID_POOL_BOTTOM:           return (MV_HORIZONTAL | MV_UP);
9031     case EL_ACID:                       return (MV_HORIZONTAL | MV_DOWN);
9032   }
9033
9034   return MV_NONE;
9035 }
9036
9037 static int getPoolFromOpenDirection(int direction)
9038 {
9039   switch (direction)
9040   {
9041     case (MV_DOWN | MV_RIGHT):          return EL_ACID_POOL_TOPLEFT;
9042     case (MV_DOWN | MV_LEFT):           return EL_ACID_POOL_TOPRIGHT;
9043     case (MV_UP | MV_RIGHT):            return EL_ACID_POOL_BOTTOMLEFT;
9044     case (MV_UP | MV_LEFT):             return EL_ACID_POOL_BOTTOMRIGHT;
9045     case (MV_HORIZONTAL | MV_UP):       return EL_ACID_POOL_BOTTOM;
9046     case (MV_HORIZONTAL | MV_DOWN):     return EL_ACID;
9047   }
9048
9049   return EL_EMPTY;
9050 }
9051
9052 static int getPoolFromOpenDirectionExt(int direction, int help_element)
9053 {
9054   int element = getPoolFromOpenDirection(direction);
9055   int help_direction = getOpenDirectionFromPool(help_element);
9056
9057   if (element == EL_EMPTY)
9058   {
9059     int help_direction_vertical = help_direction & MV_VERTICAL;
9060
9061     element = getPoolFromOpenDirection(direction | help_direction_vertical);
9062   }
9063
9064   if (element == EL_EMPTY)
9065   {
9066     int help_direction_horizontal = help_direction & MV_HORIZONTAL;
9067
9068     element = getPoolFromOpenDirection(direction | help_direction_horizontal);
9069   }
9070
9071   return element;
9072 }
9073
9074 static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
9075 {
9076   int element_new = getPoolFromOpenDirectionExt(direction, element_old);
9077
9078   return (element_new != EL_EMPTY ? element_new : element_old);
9079 }
9080
9081 static int getOpenDirectionFromPillar(int element)
9082 {
9083   switch (element)
9084   {
9085     case EL_EMC_WALL_1:                 return (MV_DOWN);
9086     case EL_EMC_WALL_2:                 return (MV_VERTICAL);
9087     case EL_EMC_WALL_3:                 return (MV_UP);
9088   }
9089
9090   return MV_NONE;
9091 }
9092
9093 static int getPillarFromOpenDirection(int direction)
9094 {
9095   switch (direction)
9096   {
9097     case (MV_DOWN):                     return EL_EMC_WALL_1;
9098     case (MV_VERTICAL):                 return EL_EMC_WALL_2;
9099     case (MV_UP):                       return EL_EMC_WALL_3;
9100   }
9101
9102   return EL_EMPTY;
9103 }
9104
9105 static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
9106 {
9107   int element_new = getPillarFromOpenDirection(direction);
9108
9109   return (element_new != EL_EMPTY ? element_new : element_old);
9110 }
9111
9112 static int getOpenDirectionFromSteel2(int element)
9113 {
9114   switch (element)
9115   {
9116     case EL_DC_STEELWALL_2_LEFT:        return (MV_RIGHT);
9117     case EL_DC_STEELWALL_2_RIGHT:       return (MV_LEFT);
9118     case EL_DC_STEELWALL_2_TOP:         return (MV_DOWN);
9119     case EL_DC_STEELWALL_2_BOTTOM:      return (MV_UP);
9120     case EL_DC_STEELWALL_2_HORIZONTAL:  return (MV_HORIZONTAL);
9121     case EL_DC_STEELWALL_2_VERTICAL:    return (MV_VERTICAL);
9122     case EL_DC_STEELWALL_2_MIDDLE:      return (MV_ANY_DIRECTION);
9123     case EL_DC_STEELWALL_2_SINGLE:      return (MV_NONE);
9124   }
9125
9126   return MV_NONE;
9127 }
9128
9129 static int getSteel2FromOpenDirection(int direction)
9130 {
9131   switch (direction)
9132   {
9133     case (MV_RIGHT):                    return EL_DC_STEELWALL_2_LEFT;
9134     case (MV_LEFT):                     return EL_DC_STEELWALL_2_RIGHT;
9135     case (MV_DOWN):                     return EL_DC_STEELWALL_2_TOP;
9136     case (MV_UP):                       return EL_DC_STEELWALL_2_BOTTOM;
9137     case (MV_HORIZONTAL):               return EL_DC_STEELWALL_2_HORIZONTAL;
9138     case (MV_VERTICAL):                 return EL_DC_STEELWALL_2_VERTICAL;
9139     case (MV_ANY_DIRECTION):            return EL_DC_STEELWALL_2_MIDDLE;
9140     case (MV_NONE):                     return EL_DC_STEELWALL_2_SINGLE;
9141   }
9142
9143   return EL_EMPTY;
9144 }
9145
9146 static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
9147 {
9148   int element_new = getSteel2FromOpenDirection(direction);
9149
9150   return (element_new != EL_EMPTY ? element_new : element_old);
9151 }
9152
9153 static int getOpenDirectionFromChip(int element)
9154 {
9155   switch (element)
9156   {
9157     case EL_SP_CHIP_SINGLE:             return (MV_NONE);
9158     case EL_SP_CHIP_LEFT:               return (MV_RIGHT);
9159     case EL_SP_CHIP_RIGHT:              return (MV_LEFT);
9160     case EL_SP_CHIP_TOP:                return (MV_DOWN);
9161     case EL_SP_CHIP_BOTTOM:             return (MV_UP);
9162   }
9163
9164   return MV_NONE;
9165 }
9166
9167 static int getChipFromOpenDirection(int direction)
9168 {
9169   switch (direction)
9170   {
9171     case (MV_NONE):                     return EL_SP_CHIP_SINGLE;
9172     case (MV_LEFT):                     return EL_SP_CHIP_RIGHT;
9173     case (MV_RIGHT):                    return EL_SP_CHIP_LEFT;
9174     case (MV_UP):                       return EL_SP_CHIP_BOTTOM;
9175     case (MV_DOWN):                     return EL_SP_CHIP_TOP;
9176   }
9177
9178   return EL_EMPTY;
9179 }
9180
9181 static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
9182 {
9183   int element_new = getChipFromOpenDirection(direction);
9184
9185   return (element_new != EL_EMPTY ? element_new : element_old);
9186 }
9187
9188 static int getClosedTube(int x, int y)
9189 {
9190   static int xy[4][2] =
9191   {
9192     { -1, 0 },
9193     { +1, 0 },
9194     { 0, -1 },
9195     { 0, +1 }
9196   };
9197   int element_old = IntelliDrawBuffer[x][y];
9198   int direction_old = getOpenDirectionFromTube(element_old);
9199   int direction_new = MV_NONE;
9200   int i;
9201
9202   for (i = 0; i < NUM_DIRECTIONS; i++)
9203   {
9204     int xx = x + xy[i][0];
9205     int yy = y + xy[i][1];
9206     int dir = MV_DIR_FROM_BIT(i);
9207     int dir_opposite = MV_DIR_OPPOSITE(dir);
9208
9209     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
9210         (direction_old & dir) &&
9211         (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
9212       direction_new |= dir;
9213   }
9214
9215   return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
9216 }
9217
9218 static int getClosedBelt(int x, int y)
9219 {
9220   static int xy[4][2] =
9221   {
9222     { -1, 0 },
9223     { +1, 0 },
9224     { 0, -1 },
9225     { 0, +1 }
9226   };
9227   int element_old = IntelliDrawBuffer[x][y];
9228   int nr = getBeltNrFromBeltElement(element_old);
9229   int direction_old = getOpenDirectionFromBelt(element_old);
9230   int direction_new = MV_NONE;
9231   int i;
9232
9233   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
9234   {
9235     int xx = x + xy[i][0];
9236     int yy = y + xy[i][1];
9237     int dir = MV_DIR_FROM_BIT(i);
9238     int dir_opposite = MV_DIR_OPPOSITE(dir);
9239
9240     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
9241         (direction_old & dir) &&
9242         (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
9243       direction_new |= dir;
9244   }
9245
9246   return getBeltFromNrAndOpenDirection(nr, direction_new);
9247 }
9248
9249 static int getClosedPool(int x, int y)
9250 {
9251   static int xy[4][2] =
9252   {
9253     { -1, 0 },
9254     { +1, 0 },
9255     { 0, -1 },
9256     { 0, +1 }
9257   };
9258   int element_old = IntelliDrawBuffer[x][y];
9259   int direction_old = getOpenDirectionFromPool(element_old);
9260   int direction_new = MV_NONE;
9261   int i;
9262
9263   for (i = 0; i < NUM_DIRECTIONS; i++)
9264   {
9265     int xx = x + xy[i][0];
9266     int yy = y + xy[i][1];
9267     int dir = MV_DIR_FROM_BIT(i);
9268     int dir_opposite = MV_DIR_OPPOSITE(dir);
9269
9270     if (IN_LEV_FIELD(xx, yy) &&
9271         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
9272         (direction_old & dir) &&
9273         (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
9274       direction_new |= dir;
9275   }
9276
9277   return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
9278 }
9279
9280 static int getClosedPillar(int x, int y)
9281 {
9282   static int xy[4][2] =
9283   {
9284     { -1, 0 },
9285     { +1, 0 },
9286     { 0, -1 },
9287     { 0, +1 }
9288   };
9289   int element_old = IntelliDrawBuffer[x][y];
9290   int direction_old = getOpenDirectionFromPillar(element_old);
9291   int direction_new = MV_NONE;
9292   int i;
9293
9294   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
9295   {
9296     int xx = x + xy[i][0];
9297     int yy = y + xy[i][1];
9298     int dir = MV_DIR_FROM_BIT(i);
9299     int dir_opposite = MV_DIR_OPPOSITE(dir);
9300
9301     if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
9302         (direction_old & dir) &&
9303         (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
9304       direction_new |= dir;
9305   }
9306
9307   return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
9308 }
9309
9310 static int getClosedSteel2(int x, int y)
9311 {
9312   static int xy[4][2] =
9313   {
9314     { -1, 0 },
9315     { +1, 0 },
9316     { 0, -1 },
9317     { 0, +1 }
9318   };
9319   int element_old = IntelliDrawBuffer[x][y];
9320   int direction_old = getOpenDirectionFromSteel2(element_old);
9321   int direction_new = MV_NONE;
9322   int i;
9323
9324   for (i = 0; i < NUM_DIRECTIONS; i++)
9325   {
9326     int xx = x + xy[i][0];
9327     int yy = y + xy[i][1];
9328     int dir = MV_DIR_FROM_BIT(i);
9329     int dir_opposite = MV_DIR_OPPOSITE(dir);
9330
9331     if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
9332         (direction_old & dir) &&
9333         (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
9334       direction_new |= dir;
9335   }
9336
9337   return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
9338 }
9339
9340 static int getClosedChip(int x, int y)
9341 {
9342   static int xy[4][2] =
9343   {
9344     { -1, 0 },
9345     { +1, 0 },
9346     { 0, -1 },
9347     { 0, +1 }
9348   };
9349   int element_old = IntelliDrawBuffer[x][y];
9350   int direction_old = getOpenDirectionFromChip(element_old);
9351   int direction_new = MV_NONE;
9352   int i;
9353
9354   for (i = 0; i < NUM_DIRECTIONS; i++)
9355   {
9356     int xx = x + xy[i][0];
9357     int yy = y + xy[i][1];
9358     int dir = MV_DIR_FROM_BIT(i);
9359     int dir_opposite = MV_DIR_OPPOSITE(dir);
9360
9361     if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
9362         (direction_old & dir) &&
9363         (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
9364       direction_new |= dir;
9365   }
9366
9367   return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
9368 }
9369
9370 static void SetElementSimple(int x, int y, int element, boolean change_level)
9371 {
9372   int sx = x - level_xpos;
9373   int sy = y - level_ypos;
9374
9375   IntelliDrawBuffer[x][y] = element;
9376
9377   if (change_level)
9378     Feld[x][y] = element;
9379
9380   if (IN_ED_FIELD(sx, sy))
9381     DrawEditorElement(sx, sy, element);
9382 }
9383
9384 static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
9385                                            int x2, int y2, int *element2,
9386                                            int (*close_function)(int, int),
9387                                            boolean change_level)
9388 {
9389   /* set neighbour elements to newly determined connections */
9390   SetElementSimple(x1, y1, *element1, change_level);
9391   SetElementSimple(x2, y2, *element2, change_level);
9392
9393   /* remove all open connections of neighbour elements */
9394   *element1 = close_function(x1, y1);
9395   *element2 = close_function(x2, y2);
9396
9397   /* set neighbour elements to new, minimized connections */
9398   SetElementSimple(x1, y1, *element1, change_level);
9399   SetElementSimple(x2, y2, *element2, change_level);
9400 }
9401
9402 static void SetElementIntelliDraw(int x, int y, int new_element,
9403                                   boolean change_level, int button)
9404 {
9405   static int xy[4][2] =
9406   {
9407     { -1, 0 },
9408     { +1, 0 },
9409     { 0, -1 },
9410     { 0, +1 }
9411   };
9412   static int last_x = -1;
9413   static int last_y = -1;
9414   int old_element = IntelliDrawBuffer[x][y];
9415
9416   if (new_element == EL_UNDEFINED)
9417   {
9418     last_x = -1;
9419     last_y = -1;
9420
9421     return;
9422   }
9423
9424   if (IS_TUBE(new_element))
9425   {
9426     int last_element_new = EL_UNDEFINED;
9427     int direction = MV_NONE;
9428     int i;
9429
9430     /* if old element is of same kind, keep all existing directions */
9431     if (IS_TUBE(old_element))
9432       direction |= getOpenDirectionFromTube(old_element);
9433
9434     for (i = 0; i < NUM_DIRECTIONS; i++)
9435     {
9436       int xx = x + xy[i][0];
9437       int yy = y + xy[i][1];
9438
9439       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
9440           IS_TUBE(IntelliDrawBuffer[last_x][last_y]))
9441       {
9442         int dir = MV_DIR_FROM_BIT(i);
9443         int dir_opposite = MV_DIR_OPPOSITE(dir);
9444         int last_element_old = IntelliDrawBuffer[last_x][last_y];
9445         int last_direction_old = getOpenDirectionFromTube(last_element_old);
9446         int last_direction_new = last_direction_old | dir_opposite;
9447
9448         last_element_new = getTubeFromOpenDirection(last_direction_new);
9449
9450         direction |= dir;
9451       }
9452     }
9453
9454     new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
9455
9456     if (last_element_new != EL_UNDEFINED)
9457       MergeAndCloseNeighbourElements(x, y, &new_element,
9458                                      last_x, last_y, &last_element_new,
9459                                      getClosedTube, change_level);
9460   }
9461   else if (IS_BELT(new_element))
9462   {
9463     int belt_nr = getBeltNrFromBeltElement(new_element);
9464     int last_element_new = EL_UNDEFINED;
9465     int direction = MV_NONE;
9466     int i;
9467
9468     /* if old element is of same kind, keep all existing directions */
9469     if (IS_BELT(old_element))
9470       direction |= getOpenDirectionFromBelt(old_element);
9471
9472     for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
9473     {
9474       int xx = x + xy[i][0];
9475       int yy = y + xy[i][1];
9476
9477       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
9478           IS_BELT(IntelliDrawBuffer[last_x][last_y]))
9479       {
9480         int dir = MV_DIR_FROM_BIT(i);
9481         int dir_opposite = MV_DIR_OPPOSITE(dir);
9482         int last_element_old = IntelliDrawBuffer[last_x][last_y];
9483         int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
9484         int last_direction_old = getOpenDirectionFromBelt(last_element_old);
9485         int last_direction_new = last_direction_old | dir_opposite;
9486
9487         last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
9488                                                          last_direction_new);
9489         direction |= dir;
9490       }
9491     }
9492
9493     new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
9494                                                         new_element);
9495     if (last_element_new != EL_UNDEFINED)
9496       MergeAndCloseNeighbourElements(x, y, &new_element,
9497                                      last_x, last_y, &last_element_new,
9498                                      getClosedBelt, change_level);
9499   }
9500   else if (IS_ACID_POOL_OR_ACID(new_element))
9501   {
9502     int last_element_new = EL_UNDEFINED;
9503     int direction = MV_NONE;
9504     int i;
9505
9506     /* if old element is of same kind, keep all existing directions */
9507     if (IS_ACID_POOL_OR_ACID(old_element))
9508       direction |= getOpenDirectionFromPool(old_element);
9509
9510     for (i = 0; i < NUM_DIRECTIONS; i++)
9511     {
9512       int xx = x + xy[i][0];
9513       int yy = y + xy[i][1];
9514
9515       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
9516           IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
9517       {
9518         int dir = MV_DIR_FROM_BIT(i);
9519         int dir_opposite = MV_DIR_OPPOSITE(dir);
9520         int last_element_old = IntelliDrawBuffer[last_x][last_y];
9521         int last_direction_old = getOpenDirectionFromPool(last_element_old);
9522         int last_direction_new = last_direction_old | dir_opposite;
9523
9524         last_element_new = getPoolFromOpenDirection(last_direction_new);
9525
9526         direction |= dir;
9527       }
9528     }
9529
9530     /* special corrections needed for intuitively correct acid pool drawing */
9531     if (last_element_new == EL_EMPTY)
9532       last_element_new = new_element;
9533     else if (last_element_new != EL_UNDEFINED)
9534       new_element = last_element_new;
9535
9536     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
9537
9538     if (last_element_new != EL_UNDEFINED)
9539       MergeAndCloseNeighbourElements(x, y, &new_element,
9540                                      last_x, last_y, &last_element_new,
9541                                      getClosedPool, change_level);
9542   }
9543   else if (IS_EMC_PILLAR(new_element))
9544   {
9545     int last_element_new = EL_UNDEFINED;
9546     int direction = MV_NONE;
9547     int i;
9548
9549     /* if old element is of same kind, keep all existing directions */
9550     if (IS_EMC_PILLAR(old_element))
9551       direction |= getOpenDirectionFromPillar(old_element);
9552
9553     for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
9554     {
9555       int xx = x + xy[i][0];
9556       int yy = y + xy[i][1];
9557
9558       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
9559           IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
9560       {
9561         int dir = MV_DIR_FROM_BIT(i);
9562         int dir_opposite = MV_DIR_OPPOSITE(dir);
9563         int last_element_old = IntelliDrawBuffer[last_x][last_y];
9564         int last_direction_old = getOpenDirectionFromPillar(last_element_old);
9565         int last_direction_new = last_direction_old | dir_opposite;
9566
9567         last_element_new = getPillarFromOpenDirection(last_direction_new);
9568
9569         direction |= dir;
9570       }
9571     }
9572
9573     new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
9574
9575     if (last_element_new != EL_UNDEFINED)
9576       MergeAndCloseNeighbourElements(x, y, &new_element,
9577                                      last_x, last_y, &last_element_new,
9578                                      getClosedPillar, change_level);
9579   }
9580   else if (IS_DC_STEELWALL_2(new_element))
9581   {
9582     int last_element_new = EL_UNDEFINED;
9583     int direction = MV_NONE;
9584     int i;
9585
9586     /* if old element is of same kind, keep all existing directions */
9587     if (IS_DC_STEELWALL_2(old_element))
9588       direction |= getOpenDirectionFromSteel2(old_element);
9589
9590     for (i = 0; i < NUM_DIRECTIONS; i++)
9591     {
9592       int xx = x + xy[i][0];
9593       int yy = y + xy[i][1];
9594
9595       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
9596           IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
9597       {
9598         int dir = MV_DIR_FROM_BIT(i);
9599         int dir_opposite = MV_DIR_OPPOSITE(dir);
9600         int last_element_old = IntelliDrawBuffer[last_x][last_y];
9601         int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
9602         int last_direction_new = last_direction_old | dir_opposite;
9603
9604         last_element_new = getSteel2FromOpenDirection(last_direction_new);
9605
9606         direction |= dir;
9607       }
9608     }
9609
9610     new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
9611
9612     if (last_element_new != EL_UNDEFINED)
9613       MergeAndCloseNeighbourElements(x, y, &new_element,
9614                                      last_x, last_y, &last_element_new,
9615                                      getClosedSteel2, change_level);
9616   }
9617   else if (IS_SP_CHIP(new_element))
9618   {
9619     int last_element_new = EL_UNDEFINED;
9620     int direction = MV_NONE;
9621     int i;
9622
9623     /* (do not keep existing directions, regardless of kind of old element) */
9624
9625     for (i = 0; i < NUM_DIRECTIONS; i++)
9626     {
9627       int xx = x + xy[i][0];
9628       int yy = y + xy[i][1];
9629
9630       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
9631           IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
9632       {
9633         int dir = MV_DIR_FROM_BIT(i);
9634         int dir_opposite = MV_DIR_OPPOSITE(dir);
9635         int last_element_old = IntelliDrawBuffer[last_x][last_y];
9636         int last_direction_old = getOpenDirectionFromChip(last_element_old);
9637         int last_direction_new = last_direction_old | dir_opposite;
9638
9639         if (last_direction_old == MV_NONE)
9640         {
9641           last_element_new = getChipFromOpenDirection(last_direction_new);
9642           direction |= dir;
9643         }
9644         else if (last_direction_old & (dir | dir_opposite))
9645         {
9646           direction |= MV_DIR_OPPOSITE(last_direction_old);
9647         }
9648         else
9649         {
9650           direction |= MV_DIR_OPPOSITE(dir);
9651         }
9652       }
9653     }
9654
9655     new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
9656
9657     if (last_element_new != EL_UNDEFINED)
9658       MergeAndCloseNeighbourElements(x, y, &new_element,
9659                                      last_x, last_y, &last_element_new,
9660                                      getClosedChip, change_level);
9661   }
9662   else if (IS_SP_HARDWARE_BASE(new_element))
9663   {
9664     int nr = GetSimpleRandom(6);
9665
9666     new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
9667                    nr == 1 ? EL_SP_HARDWARE_BASE_2 :
9668                    nr == 2 ? EL_SP_HARDWARE_BASE_3 :
9669                    nr == 3 ? EL_SP_HARDWARE_BASE_4 :
9670                    nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
9671   }
9672   else if (new_element == EL_SP_HARDWARE_GREEN ||
9673            new_element == EL_SP_HARDWARE_BLUE ||
9674            new_element == EL_SP_HARDWARE_RED)
9675   {
9676     int nr = GetSimpleRandom(3);
9677
9678     new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
9679                    nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
9680   }
9681   else if (IS_GROUP_ELEMENT(new_element))
9682   {
9683     boolean connected_drawing = FALSE;
9684     int i;
9685
9686     for (i = 0; i < NUM_DIRECTIONS; i++)
9687     {
9688       int xx = x + xy[i][0];
9689       int yy = y + xy[i][1];
9690
9691       if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
9692           IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
9693         connected_drawing = TRUE;
9694     }
9695
9696     if (!connected_drawing)
9697       ResolveGroupElement(new_element);
9698
9699     new_element = GetElementFromGroupElement(new_element);
9700   }
9701   else if (IS_BELT_SWITCH(old_element))
9702   {
9703     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
9704     int belt_dir = getBeltDirFromBeltSwitchElement(old_element);
9705
9706     belt_dir = (belt_dir == MV_LEFT ? MV_NONE :
9707                 belt_dir == MV_NONE ? MV_RIGHT : MV_LEFT);
9708
9709     new_element = getBeltSwitchElementFromBeltNrAndBeltDir(belt_nr, belt_dir);
9710   }
9711   else
9712   {
9713     static int swappable_elements[][2] =
9714     {
9715       { EL_EXIT_CLOSED,                 EL_EXIT_OPEN                    },
9716       { EL_DYNAMITE,                    EL_DYNAMITE_ACTIVE              },
9717       { EL_EM_DYNAMITE,                 EL_EM_DYNAMITE_ACTIVE           },
9718       { EL_QUICKSAND_EMPTY,             EL_QUICKSAND_FULL               },
9719       { EL_EMERALD,                     EL_WALL_EMERALD                 },
9720       { EL_EMERALD_YELLOW,              EL_WALL_EMERALD_YELLOW          },
9721       { EL_EMERALD_RED,                 EL_WALL_EMERALD_RED             },
9722       { EL_EMERALD_PURPLE,              EL_WALL_EMERALD_PURPLE          },
9723       { EL_DIAMOND,                     EL_WALL_DIAMOND                 },
9724       { EL_BD_DIAMOND,                  EL_WALL_BD_DIAMOND              },
9725       { EL_GATE_1,                      EL_GATE_1_GRAY                  },
9726       { EL_GATE_2,                      EL_GATE_2_GRAY                  },
9727       { EL_GATE_3,                      EL_GATE_3_GRAY                  },
9728       { EL_GATE_4,                      EL_GATE_4_GRAY                  },
9729       { EL_EM_GATE_1,                   EL_EM_GATE_1_GRAY               },
9730       { EL_EM_GATE_2,                   EL_EM_GATE_2_GRAY               },
9731       { EL_EM_GATE_3,                   EL_EM_GATE_3_GRAY               },
9732       { EL_EM_GATE_4,                   EL_EM_GATE_4_GRAY               },
9733       { EL_EMC_GATE_5,                  EL_EMC_GATE_5_GRAY              },
9734       { EL_EMC_GATE_6,                  EL_EMC_GATE_6_GRAY              },
9735       { EL_EMC_GATE_7,                  EL_EMC_GATE_7_GRAY              },
9736       { EL_EMC_GATE_8,                  EL_EMC_GATE_8_GRAY              },
9737       { EL_DC_GATE_WHITE,               EL_DC_GATE_WHITE_GRAY           },
9738       { EL_TIME_ORB_EMPTY,              EL_TIME_ORB_FULL                },
9739       { EL_LAMP,                        EL_LAMP_ACTIVE                  },
9740       { EL_SOKOBAN_FIELD_EMPTY,         EL_SOKOBAN_FIELD_FULL           },
9741       { EL_SP_BASE,                     EL_SP_BUGGY_BASE                },
9742       { EL_PEARL,                       EL_WALL_PEARL                   },
9743       { EL_CRYSTAL,                     EL_WALL_CRYSTAL                 },
9744       { EL_TIMEGATE_CLOSED,             EL_TIMEGATE_OPEN                },
9745       { EL_SWITCHGATE_CLOSED,           EL_SWITCHGATE_OPEN              },
9746       { EL_SWITCHGATE_SWITCH_UP,        EL_SWITCHGATE_SWITCH_DOWN       },
9747       { EL_DC_SWITCHGATE_SWITCH_UP,     EL_DC_SWITCHGATE_SWITCH_DOWN    },
9748       { EL_LIGHT_SWITCH,                EL_LIGHT_SWITCH_ACTIVE          },
9749       { EL_LANDMINE,                    EL_DC_LANDMINE                  },
9750       { EL_SHIELD_NORMAL,               EL_SHIELD_DEADLY                },
9751       { EL_STEEL_EXIT_CLOSED,           EL_STEEL_EXIT_OPEN              },
9752       { EL_EM_EXIT_CLOSED,              EL_EM_EXIT_OPEN                 },
9753       { EL_EM_STEEL_EXIT_CLOSED,        EL_EM_STEEL_EXIT_OPEN           },
9754       { EL_QUICKSAND_FAST_EMPTY,        EL_QUICKSAND_FAST_FULL          },
9755
9756       { -1,                             -1                              },
9757     };
9758     static int rotatable_elements[][4] =
9759     {
9760       {
9761         EL_BUG_UP,
9762         EL_BUG_RIGHT,
9763         EL_BUG_DOWN,
9764         EL_BUG_LEFT
9765       },
9766
9767       {
9768         EL_SPACESHIP_UP,
9769         EL_SPACESHIP_RIGHT,
9770         EL_SPACESHIP_DOWN,
9771         EL_SPACESHIP_LEFT
9772       },
9773
9774       {
9775         EL_BD_BUTTERFLY_UP,
9776         EL_BD_BUTTERFLY_RIGHT,
9777         EL_BD_BUTTERFLY_DOWN,
9778         EL_BD_BUTTERFLY_LEFT
9779       },
9780
9781       {
9782         EL_BD_FIREFLY_UP,
9783         EL_BD_FIREFLY_RIGHT,
9784         EL_BD_FIREFLY_DOWN,
9785         EL_BD_FIREFLY_LEFT
9786       },
9787
9788       {
9789         EL_PACMAN_UP,
9790         EL_PACMAN_RIGHT,
9791         EL_PACMAN_DOWN,
9792         EL_PACMAN_LEFT
9793       },
9794
9795       {
9796         EL_YAMYAM_UP,
9797         EL_YAMYAM_RIGHT,
9798         EL_YAMYAM_DOWN,
9799         EL_YAMYAM_LEFT
9800       },
9801
9802       {
9803         EL_ARROW_UP,
9804         EL_ARROW_RIGHT,
9805         EL_ARROW_DOWN,
9806         EL_ARROW_LEFT
9807       },
9808
9809       {
9810         EL_SP_PORT_UP,
9811         EL_SP_PORT_RIGHT,
9812         EL_SP_PORT_DOWN,
9813         EL_SP_PORT_LEFT
9814       },
9815
9816       {
9817         EL_SP_GRAVITY_PORT_UP,
9818         EL_SP_GRAVITY_PORT_RIGHT,
9819         EL_SP_GRAVITY_PORT_DOWN,
9820         EL_SP_GRAVITY_PORT_LEFT
9821       },
9822
9823       {
9824         EL_SP_GRAVITY_ON_PORT_UP,
9825         EL_SP_GRAVITY_ON_PORT_RIGHT,
9826         EL_SP_GRAVITY_ON_PORT_DOWN,
9827         EL_SP_GRAVITY_ON_PORT_LEFT
9828       },
9829
9830       {
9831         EL_SP_GRAVITY_OFF_PORT_UP,
9832         EL_SP_GRAVITY_OFF_PORT_RIGHT,
9833         EL_SP_GRAVITY_OFF_PORT_DOWN,
9834         EL_SP_GRAVITY_OFF_PORT_LEFT
9835       },
9836
9837       {
9838         EL_MOLE_UP,
9839         EL_MOLE_RIGHT,
9840         EL_MOLE_DOWN,
9841         EL_MOLE_LEFT
9842       },
9843
9844       {
9845         EL_BALLOON_SWITCH_UP,
9846         EL_BALLOON_SWITCH_RIGHT,
9847         EL_BALLOON_SWITCH_DOWN,
9848         EL_BALLOON_SWITCH_LEFT
9849       },
9850
9851       {
9852         -1,
9853         -1,
9854         -1,
9855         -1,
9856       },
9857     };
9858     int i, j;
9859
9860     for (i = 0; swappable_elements[i][0] != -1; i++)
9861     {
9862       int element1 = swappable_elements[i][0];
9863       int element2 = swappable_elements[i][1];
9864
9865       if (old_element == element1 || old_element == element2)
9866         new_element = (old_element == element1 ? element2 : element1);
9867     }
9868
9869     for (i = 0; rotatable_elements[i][0] != -1; i++)
9870     {
9871       for (j = 0; j < 4; j++)
9872       {
9873         int element = rotatable_elements[i][j];
9874
9875         if (old_element == element)
9876           new_element = (button == 1 ? rotatable_elements[i][(j + 3) % 4] :
9877                          button == 2 ? rotatable_elements[i][0]           :
9878                          button == 3 ? rotatable_elements[i][(j + 1) % 4] :
9879                          old_element);
9880       }
9881     }
9882   }
9883
9884   SetElementSimple(x, y, new_element, change_level);
9885
9886   last_x = x;
9887   last_y = y;
9888 }
9889
9890 static void ResetIntelliDraw()
9891 {
9892   int x, y;
9893
9894   for (x = 0; x < lev_fieldx; x++)
9895     for (y = 0; y < lev_fieldy; y++)
9896       IntelliDrawBuffer[x][y] = Feld[x][y];
9897
9898   SetElementIntelliDraw(-1, -1, EL_UNDEFINED, FALSE, -1);
9899 }
9900
9901 static void SetElementExt(int x, int y, int element, boolean change_level,
9902                           int button)
9903 {
9904   if (element < 0)
9905     SetElementSimple(x, y, Feld[x][y], change_level);
9906   else if (GetKeyModState() & KMOD_Shift)
9907     SetElementIntelliDraw(x, y, element, change_level, button);
9908   else
9909     SetElementSimple(x, y, element, change_level);
9910 }
9911
9912 static void SetElement(int x, int y, int element)
9913 {
9914   SetElementExt(x, y, element, TRUE, -1);
9915 }
9916
9917 static void SetElementButton(int x, int y, int element, int button)
9918 {
9919   SetElementExt(x, y, element, TRUE, button);
9920 }
9921
9922 static void DrawLineElement(int sx, int sy, int element, boolean change_level)
9923 {
9924   int lx = sx + level_xpos;
9925   int ly = sy + level_ypos;
9926
9927   SetElementExt(lx, ly, element, change_level, -1);
9928 }
9929
9930 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
9931                      int element, boolean change_level)
9932 {
9933   int xsize = ABS(to_x - from_x);
9934   int ysize = ABS(to_y - from_y);
9935   int dx = (to_x < from_x ? -1 : +1);
9936   int dy = (to_y < from_y ? -1 : +1);
9937   int i;
9938
9939   if (from_y == to_y)                   /* horizontal line */
9940   {
9941     for (i = 0; i <= xsize; i++)
9942       DrawLineElement(from_x + i * dx, from_y, element, change_level);
9943   }
9944   else if (from_x == to_x)              /* vertical line */
9945   {
9946     for (i = 0; i <= ysize; i++)
9947       DrawLineElement(from_x, from_y + i * dy, element, change_level);
9948   }
9949   else                                  /* diagonal line */
9950   {
9951     if (ysize < xsize)                  /* a < 1 */
9952     {
9953       float a = (float)ysize / (float)xsize;
9954
9955       for (i = 0; i <= xsize; i++)
9956       {
9957         int x = dx * i;
9958         int y = dy * (int)(a * i + 0.5);
9959
9960         DrawLineElement(from_x + x, from_y + y, element, change_level);
9961       }
9962     }
9963     else                                /* a >= 1 */
9964     {
9965       float a = (float)xsize / (float)ysize;
9966
9967       for (i = 0; i <= ysize; i++)
9968       {
9969         int x = dx * (int)(a * i + 0.5);
9970         int y = dy * i;
9971
9972         DrawLineElement(from_x + x, from_y + y, element, change_level);
9973       }
9974     }
9975   }
9976 }
9977
9978 static void DrawBox(int from_x, int from_y, int to_x, int to_y,
9979                     int element, boolean change_level)
9980 {
9981   DrawLine(from_x, from_y, from_x, to_y, element, change_level);
9982   DrawLine(from_x, to_y, to_x, to_y, element, change_level);
9983   DrawLine(to_x, to_y, to_x, from_y, element, change_level);
9984   DrawLine(to_x, from_y, from_x, from_y, element, change_level);
9985 }
9986
9987 static void DrawFilledBox(int from_x, int from_y, int to_x, int to_y,
9988                           int element, boolean change_level)
9989 {
9990   int y;
9991
9992   if (from_y > to_y)
9993     swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
9994
9995   for (y = from_y; y <= to_y; y++)
9996     DrawLine(from_x, y, to_x, y, element, change_level);
9997 }
9998
9999 static void DrawArcExt(int from_x, int from_y, int to_x2, int to_y2,
10000                        int element, boolean change_level)
10001 {
10002   int to_x = to_x2 - (to_x2 > from_x ? +1 : -1);
10003   int to_y = to_y2 - (to_y2 > from_y ? +1 : -1);
10004   int len_x = ABS(to_x - from_x);
10005   int len_y = ABS(to_y - from_y);
10006   int radius, x, y;
10007
10008   radius = (int)(sqrt((float)(len_x * len_x + len_y * len_y)) + 0.5);
10009
10010   /* not optimal (some points get drawn twice) but simple,
10011      and fast enough for the few points we are drawing */
10012
10013   for (x = 0; x <= radius; x++)
10014   {
10015     int sx, sy, lx, ly;
10016
10017     y = (int)(sqrt((float)(radius * radius - x * x)) + 0.5);
10018
10019     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
10020     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
10021     lx = sx + level_xpos;
10022     ly = sy + level_ypos;
10023
10024     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
10025       DrawLineElement(sx, sy, element, change_level);
10026   }
10027
10028   for (y = 0; y <= radius; y++)
10029   {
10030     int sx, sy, lx, ly;
10031
10032     x = (int)(sqrt((float)(radius * radius - y * y)) + 0.5);
10033
10034     sx = from_x + x * (from_x < to_x2 ? +1 : -1);
10035     sy = from_y + y * (from_y < to_y2 ? +1 : -1);
10036     lx = sx + level_xpos;
10037     ly = sy + level_ypos;
10038
10039     if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
10040       DrawLineElement(sx, sy, element, change_level);
10041   }
10042 }
10043
10044 static void DrawArc(int from_x, int from_y, int to_x, int to_y,
10045                     int element, boolean change_level)
10046 {
10047   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
10048   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
10049
10050   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
10051 }
10052
10053 #define DRAW_CIRCLES_BUTTON_AVAILABLE   0
10054
10055 #if DRAW_CIRCLES_BUTTON_AVAILABLE
10056 static void DrawCircle(int from_x, int from_y, int to_x, int to_y,
10057                        int element, boolean change_level)
10058 {
10059   int to_x2 = to_x + (to_x < from_x ? -1 : +1);
10060   int to_y2 = to_y + (to_y > from_y ? +1 : -1);
10061   int mirror_to_x2 = from_x - (to_x2 - from_x);
10062   int mirror_to_y2 = from_y - (to_y2 - from_y);
10063
10064   DrawArcExt(from_x, from_y, to_x2, to_y2, element, change_level);
10065   DrawArcExt(from_x, from_y, mirror_to_x2, to_y2, element, change_level);
10066   DrawArcExt(from_x, from_y, to_x2, mirror_to_y2, element, change_level);
10067   DrawArcExt(from_x, from_y, mirror_to_x2, mirror_to_y2, element,change_level);
10068 }
10069 #endif
10070
10071 static void DrawAreaBorder(int from_x, int from_y, int to_x, int to_y)
10072 {
10073   int from_sx, from_sy;
10074   int to_sx, to_sy;
10075
10076   if (from_x > to_x)
10077     swap_numbers(&from_x, &to_x);
10078
10079   if (from_y > to_y)
10080     swap_numbers(&from_y, &to_y);
10081
10082   from_sx = SX + from_x * ed_tilesize;
10083   from_sy = SY + from_y * ed_tilesize;
10084   to_sx = SX + (to_x + 1) * ed_tilesize - 1;
10085   to_sy = SY + (to_y + 1) * ed_tilesize - 1;
10086
10087   DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx, from_sy);
10088   DrawSimpleWhiteLine(drawto, to_sx, from_sy, to_sx, to_sy);
10089   DrawSimpleWhiteLine(drawto, to_sx, to_sy, from_sx, to_sy);
10090   DrawSimpleWhiteLine(drawto, from_sx, to_sy, from_sx, from_sy);
10091
10092   if (from_x == to_x && from_y == to_y)
10093     MarkTileDirty(from_x/2, from_y/2);
10094   else
10095     redraw_mask |= REDRAW_FIELD;
10096 }
10097
10098 static void SelectArea(int from_x, int from_y, int to_x, int to_y,
10099                        int element, boolean change_level)
10100 {
10101   if (element == -1 || change_level)
10102     DrawBox(from_x, from_y, to_x, to_y, -1, FALSE);
10103   else
10104     DrawAreaBorder(from_x, from_y, to_x, to_y);
10105 }
10106
10107 /* values for CopyBrushExt() */
10108 #define CB_AREA_TO_BRUSH        0
10109 #define CB_BRUSH_TO_CURSOR      1
10110 #define CB_BRUSH_TO_LEVEL       2
10111 #define CB_DELETE_OLD_CURSOR    3
10112 #define CB_DUMP_BRUSH           4
10113 #define CB_DUMP_BRUSH_SMALL     5
10114
10115 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
10116                          int button, int mode)
10117 {
10118   static short brush_buffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
10119   static int brush_width, brush_height;
10120   static int last_cursor_x = -1, last_cursor_y = -1;
10121   static boolean delete_old_brush;
10122   int new_element = BUTTON_ELEMENT(button);
10123   int x, y;
10124
10125   if (mode == CB_DUMP_BRUSH ||
10126       mode == CB_DUMP_BRUSH_SMALL)
10127   {
10128     if (!draw_with_brush)
10129     {
10130       Error(ERR_WARN, "no brush selected");
10131
10132       return;
10133     }
10134
10135     for (y = 0; y < brush_height; y++)
10136     {
10137       for (x = 0; x < brush_width; x++)
10138       {
10139         int element = brush_buffer[x][y];
10140         int element_mapped = element;
10141
10142         if (IS_CUSTOM_ELEMENT(element))
10143           element_mapped = EL_CUSTOM_START;
10144         else if (IS_GROUP_ELEMENT(element))
10145           element_mapped = EL_GROUP_START;
10146         else if (element >= NUM_FILE_ELEMENTS)
10147           element_mapped = EL_UNKNOWN;
10148
10149         // dump brush as level sketch text for the R'n'D forum:
10150         // - large tiles: `xxx (0x60 ASCII)
10151         // - small tiles: ¸xxx (0xb8 ISO-8859-1, 0xc2b8 UTF-8)
10152         printf("%s%03d", (mode == CB_DUMP_BRUSH ? "`" : "¸"), element_mapped);
10153       }
10154
10155       printf("\n");
10156     }
10157
10158     return;
10159   }
10160
10161   if (mode == CB_DELETE_OLD_CURSOR && !delete_old_brush)
10162     return;
10163
10164   if (mode == CB_AREA_TO_BRUSH)
10165   {
10166     int from_lx, from_ly;
10167
10168     if (from_x > to_x)
10169       swap_numbers(&from_x, &to_x);
10170
10171     if (from_y > to_y)
10172       swap_numbers(&from_y, &to_y);
10173
10174     brush_width = to_x - from_x + 1;
10175     brush_height = to_y - from_y + 1;
10176
10177     from_lx = from_x + level_xpos;
10178     from_ly = from_y + level_ypos;
10179
10180     for (y = 0; y < brush_height; y++)
10181     {
10182       for (x = 0; x < brush_width; x++)
10183       {
10184         brush_buffer[x][y] = Feld[from_lx + x][from_ly + y];
10185
10186         if (button != 1)
10187           DrawLineElement(from_x + x, from_y + y, new_element, TRUE);
10188       }
10189     }
10190
10191     if (button != 1)
10192       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
10193
10194     delete_old_brush = FALSE;
10195   }
10196   else if (mode == CB_BRUSH_TO_CURSOR || mode == CB_DELETE_OLD_CURSOR ||
10197            mode == CB_BRUSH_TO_LEVEL)
10198   {
10199     int cursor_x = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_x : from_x);
10200     int cursor_y = (mode == CB_DELETE_OLD_CURSOR ? last_cursor_y : from_y);
10201     int cursor_from_x = cursor_x - brush_width / 2;
10202     int cursor_from_y = cursor_y - brush_height / 2;
10203     int border_from_x = cursor_x, border_from_y = cursor_y;
10204     int border_to_x = cursor_x, border_to_y = cursor_y;
10205
10206     if (mode != CB_DELETE_OLD_CURSOR && delete_old_brush)
10207       CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
10208
10209     if (!IN_ED_FIELD(cursor_x, cursor_y) ||
10210         !IN_LEV_FIELD(cursor_x + level_xpos, cursor_y + level_ypos))
10211     {
10212       delete_old_brush = FALSE;
10213       return;
10214     }
10215
10216     for (y = 0; y < brush_height; y++)
10217     {
10218       for (x = 0; x < brush_width; x++)
10219       {
10220         int sx = cursor_from_x + x;
10221         int sy = cursor_from_y + y;
10222         int lx = sx + level_xpos;
10223         int ly = sy + level_ypos;
10224         boolean change_level = (mode == CB_BRUSH_TO_LEVEL);
10225         int element = (mode == CB_DELETE_OLD_CURSOR ? -1 :
10226                        mode == CB_BRUSH_TO_CURSOR || button == 1 ?
10227                        brush_buffer[x][y] : new_element);
10228
10229         if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
10230         {
10231           if (sx < border_from_x)
10232             border_from_x = sx;
10233           else if (sx > border_to_x)
10234             border_to_x = sx;
10235           if (sy < border_from_y)
10236             border_from_y = sy;
10237           else if (sy > border_to_y)
10238             border_to_y = sy;
10239
10240           DrawLineElement(sx, sy, element, change_level);
10241         }
10242       }
10243     }
10244
10245     if (mode != CB_DELETE_OLD_CURSOR)
10246       DrawAreaBorder(border_from_x, border_from_y, border_to_x, border_to_y);
10247
10248     last_cursor_x = cursor_x;
10249     last_cursor_y = cursor_y;
10250     delete_old_brush = TRUE;
10251   }
10252 }
10253
10254 static void CopyAreaToBrush(int from_x, int from_y, int to_x, int to_y,
10255                             int button)
10256 {
10257   CopyBrushExt(from_x, from_y, to_x, to_y, button, CB_AREA_TO_BRUSH);
10258 }
10259
10260 static void CopyBrushToLevel(int x, int y, int button)
10261 {
10262   CopyBrushExt(x, y, 0, 0, button, CB_BRUSH_TO_LEVEL);
10263 }
10264
10265 static void CopyBrushToCursor(int x, int y)
10266 {
10267   CopyBrushExt(x, y, 0, 0, 0, CB_BRUSH_TO_CURSOR);
10268 }
10269
10270 static void DeleteBrushFromCursor()
10271 {
10272   CopyBrushExt(0, 0, 0, 0, 0, CB_DELETE_OLD_CURSOR);
10273 }
10274
10275 void DumpBrush()
10276 {
10277   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
10278 }
10279
10280 void DumpBrush_Small()
10281 {
10282   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
10283 }
10284
10285 static void FloodFill(int from_x, int from_y, int fill_element)
10286 {
10287   FloodFillLevel(from_x, from_y, fill_element, Feld, lev_fieldx, lev_fieldy);
10288 }
10289
10290 /* values for DrawLevelText() modes */
10291 #define TEXT_INIT               0
10292 #define TEXT_SETCURSOR          1
10293 #define TEXT_WRITECHAR          2
10294 #define TEXT_BACKSPACE          3
10295 #define TEXT_NEWLINE            4
10296 #define TEXT_END                5
10297 #define TEXT_QUERY_TYPING       6
10298
10299 static int DrawLevelText(int sx, int sy, char letter, int mode)
10300 {
10301   static short delete_buffer[MAX_LEV_FIELDX];
10302   static int start_sx;
10303   static int last_sx, last_sy;
10304   static boolean typing = FALSE;
10305   int letter_element = EL_CHAR_ASCII0 + letter;
10306   int lx = 0, ly = 0;
10307
10308   /* map lower case letters to upper case and convert special characters */
10309   if (letter >= 'a' && letter <= 'z')
10310     letter_element = EL_CHAR_ASCII0 + letter + (int)('A' - 'a');
10311   else if (letter == CHAR_BYTE_UMLAUT_a || letter == CHAR_BYTE_UMLAUT_A)
10312     letter_element = EL_CHAR_AUMLAUT;
10313   else if (letter == CHAR_BYTE_UMLAUT_o || letter == CHAR_BYTE_UMLAUT_O)
10314     letter_element = EL_CHAR_OUMLAUT;
10315   else if (letter == CHAR_BYTE_UMLAUT_u || letter == CHAR_BYTE_UMLAUT_U)
10316     letter_element = EL_CHAR_UUMLAUT;
10317   else if (letter == '^')
10318     letter_element = EL_CHAR_COPYRIGHT;
10319   else
10320     letter_element = EL_CHAR_ASCII0 + letter;
10321
10322   if (mode != TEXT_INIT)
10323   {
10324     if (!typing)
10325       return FALSE;
10326
10327     if (mode != TEXT_SETCURSOR)
10328     {
10329       sx = last_sx;
10330       sy = last_sy;
10331     }
10332
10333     lx = last_sx + level_xpos;
10334     ly = last_sy + level_ypos;
10335   }
10336
10337   switch (mode)
10338   {
10339     case TEXT_INIT:
10340       if (typing)
10341         DrawLevelText(0, 0, 0, TEXT_END);
10342
10343       typing = TRUE;
10344       start_sx = sx;
10345       last_sx = sx;
10346       last_sy = sy;
10347       DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
10348       break;
10349
10350     case TEXT_SETCURSOR:
10351       DrawEditorElement(last_sx, last_sy, Feld[lx][ly]);
10352       DrawAreaBorder(sx, sy, sx, sy);
10353       last_sx = sx;
10354       last_sy = sy;
10355       break;
10356
10357     case TEXT_WRITECHAR:
10358       if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
10359       {
10360         if (new_element1 >= EL_STEEL_CHAR_START &&
10361             new_element1 <= EL_STEEL_CHAR_END)
10362           letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
10363
10364         delete_buffer[sx - start_sx] = Feld[lx][ly];
10365         Feld[lx][ly] = letter_element;
10366
10367         if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
10368           DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
10369         else if (sy + 1 < ed_fieldy && ly + 1 < lev_fieldy)
10370           DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
10371         else
10372           DrawLevelText(0, 0, 0, TEXT_END);
10373
10374         level.changed = TRUE;
10375       }
10376       break;
10377
10378     case TEXT_BACKSPACE:
10379       if (sx > start_sx)
10380       {
10381         Feld[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
10382         DrawEditorElement(sx - 1, sy, Feld[lx - 1][ly]);
10383         DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
10384       }
10385       break;
10386
10387     case TEXT_NEWLINE:
10388       if (sy + 1 < ed_fieldy - 1 && ly + 1 < lev_fieldy - 1)
10389         DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
10390       else
10391         DrawLevelText(0, 0, 0, TEXT_END);
10392       break;
10393
10394     case TEXT_END:
10395       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
10396       DrawEditorElement(sx, sy, Feld[lx][ly]);
10397       typing = FALSE;
10398       break;
10399
10400     case TEXT_QUERY_TYPING:
10401       break;
10402
10403     default:
10404       break;
10405   }
10406
10407   return typing;
10408 }
10409
10410 static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
10411                           int element, boolean change_level)
10412 {
10413   int lx = sx + level_xpos;
10414   int ly = sy + level_ypos;
10415
10416   if (element == -1)
10417     DrawEditorElement(sx, sy, Feld[lx][ly]);
10418   else
10419     DrawAreaBorder(sx, sy, sx, sy);
10420 }
10421
10422 static void CheckLevelBorderElement(boolean redraw_playfield)
10423 {
10424   int last_border_element = BorderElement;
10425
10426   SetBorderElement();
10427
10428   if (redraw_playfield && BorderElement != last_border_element)
10429     DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
10430 }
10431
10432 static void CopyLevelToUndoBuffer(int mode)
10433 {
10434   static boolean accumulated_undo = FALSE;
10435   boolean new_undo_buffer_position = TRUE;
10436   int x, y;
10437
10438   if (undo_buffer_steps == 0)
10439     accumulated_undo = FALSE;
10440
10441   switch (mode)
10442   {
10443     case UNDO_IMMEDIATE:
10444       accumulated_undo = FALSE;
10445       break;
10446
10447     case UNDO_ACCUMULATE:
10448       if (accumulated_undo)
10449         new_undo_buffer_position = FALSE;
10450       accumulated_undo = TRUE;
10451       break;
10452
10453     default:
10454       break;
10455   }
10456
10457   if (new_undo_buffer_position)
10458   {
10459     /* advance position in undo buffer ring */
10460     undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
10461
10462     if (undo_buffer_steps < NUM_UNDO_STEPS - 1)
10463       undo_buffer_steps++;
10464   }
10465
10466   /* always reset redo buffer when storing level change into undo buffer */
10467   redo_buffer_steps = 0;
10468
10469   for (x = 0; x < lev_fieldx; x++)
10470     for (y = 0; y < lev_fieldy; y++)
10471       UndoBuffer[undo_buffer_position][x][y] = Feld[x][y];
10472
10473   /* check if drawing operation forces change of border style */
10474   CheckLevelBorderElement(TRUE);
10475
10476   level.changed = TRUE;
10477 }
10478
10479 static void RandomPlacement(int new_element)
10480 {
10481   static boolean free_position[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
10482   int num_free_positions = 0;
10483   int num_percentage, num_elements;
10484   int x, y;
10485
10486   ResetIntelliDraw();
10487
10488   /* determine number of free positions for randomly placing the new element */
10489   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
10490   {
10491     free_position[x][y] =
10492       (random_placement_background_restricted ?
10493        Feld[x][y] == random_placement_background_element :
10494        Feld[x][y] != new_element);
10495
10496     if (free_position[x][y])
10497       num_free_positions++;
10498   }
10499
10500   /* determine number of new elements to place there */
10501   num_percentage = num_free_positions * random_placement_value / 100;
10502   num_elements = (random_placement_method == RANDOM_USE_PERCENTAGE ?
10503                   num_percentage : random_placement_value);
10504
10505   /* if less free positions than elements to place, fill all these positions */
10506   if (num_free_positions < num_elements)
10507   {
10508     for (x = 0; x < lev_fieldx; x++)
10509       for (y = 0; y < lev_fieldy; y++)
10510         if (free_position[x][y])
10511           SetElement(x, y, new_element);
10512   }
10513   else
10514   {
10515     while (num_elements > 0)
10516     {
10517       x = GetSimpleRandom(lev_fieldx);
10518       y = GetSimpleRandom(lev_fieldy);
10519
10520       /* don't place element at the same position twice */
10521       if (free_position[x][y])
10522       {
10523         free_position[x][y] = FALSE;
10524         SetElement(x, y, new_element);
10525         num_elements--;
10526       }
10527     }
10528   }
10529
10530   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
10531   CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
10532 }
10533
10534 void WrapLevel(int dx, int dy)
10535 {
10536   int wrap_dx = lev_fieldx - dx;
10537   int wrap_dy = lev_fieldy - dy;
10538   int x, y;
10539
10540   for (x = 0; x < lev_fieldx; x++)
10541     for (y = 0; y < lev_fieldy; y++)
10542       FieldBackup[x][y] = Feld[x][y];
10543
10544   for (x = 0; x < lev_fieldx; x++)
10545     for (y = 0; y < lev_fieldy; y++)
10546       Feld[x][y] =
10547         FieldBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
10548
10549   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
10550   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
10551 }
10552
10553 static void HandleDrawingAreas(struct GadgetInfo *gi)
10554 {
10555   static boolean started_inside_drawing_area = FALSE;
10556   int id = gi->custom_id;
10557   boolean button_press_event;
10558   boolean button_release_event;
10559   boolean inside_drawing_area = !gi->event.off_borders;
10560   boolean draw_level = (id == GADGET_ID_DRAWING_LEVEL);
10561   int actual_drawing_function;
10562   int button = gi->event.button;
10563   int new_element = BUTTON_ELEMENT(button);
10564   int sx = gi->event.x, sy = gi->event.y;
10565   int min_sx = 0, min_sy = 0;
10566   int max_sx = gi->drawing.area_xsize - 1, max_sy = gi->drawing.area_ysize - 1;
10567   int item_xsize = gi->drawing.item_xsize, item_ysize = gi->drawing.item_ysize;
10568   int lx = 0, ly = 0;
10569   int min_lx = 0, min_ly = 0;
10570   int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
10571   int x, y;
10572
10573   /* handle info callback for each invocation of action callback */
10574   gi->callback_info(gi);
10575
10576   button_press_event = (gi->event.type == GD_EVENT_PRESSED);
10577   button_release_event = (gi->event.type == GD_EVENT_RELEASED);
10578
10579   /* make sure to stay inside drawing area boundaries */
10580   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
10581   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
10582
10583   if (draw_level)
10584   {
10585     /* get positions inside level field */
10586     lx = sx + level_xpos;
10587     ly = sy + level_ypos;
10588
10589     if (!IN_LEV_FIELD(lx, ly))
10590       inside_drawing_area = FALSE;
10591
10592     /* make sure to stay inside level field boundaries */
10593     lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
10594     ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
10595
10596     /* correct drawing area positions accordingly */
10597     sx = lx - level_xpos;
10598     sy = ly - level_ypos;
10599   }
10600
10601   if (button_press_event)
10602     started_inside_drawing_area = inside_drawing_area;
10603
10604   if (!started_inside_drawing_area)
10605     return;
10606
10607   if (!IS_VALID_BUTTON(button))
10608     return;
10609
10610   if (!button && !button_release_event)
10611     return;
10612
10613   /* automatically switch to 'single item' drawing mode, if needed */
10614   actual_drawing_function =
10615     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
10616      drawing_function : GADGET_ID_SINGLE_ITEMS);
10617
10618   /* clicking into drawing area with pressed Control key picks element */
10619   if (GetKeyModState() & KMOD_Control)
10620   {
10621     last_drawing_function = drawing_function;
10622     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
10623   }
10624
10625   if (GetKeyModState() & KMOD_Shift)
10626   {
10627     if (button_press_event || button_release_event)
10628       ResetIntelliDraw();
10629   }
10630
10631   switch (actual_drawing_function)
10632   {
10633     case GADGET_ID_SINGLE_ITEMS:
10634       if (draw_level)
10635       {
10636         if (button_release_event)
10637         {
10638           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
10639
10640           if (edit_mode == ED_MODE_DRAWING && draw_with_brush &&
10641               !inside_drawing_area)
10642             DeleteBrushFromCursor();
10643         }
10644
10645         if (!button || button_release_event)
10646           break;
10647
10648         if (draw_with_brush)
10649         {
10650           CopyBrushToLevel(sx, sy, button);
10651         }
10652         else
10653         {
10654           if (new_element == EL_PLAYER_1)
10655           {
10656             /* remove player at old position */
10657             for (y = 0; y < lev_fieldy; y++)
10658               for (x = 0; x < lev_fieldx; x++)
10659                 if (Feld[x][y] == EL_PLAYER_1)
10660                   SetElement(x, y, EL_EMPTY);
10661           }
10662
10663           SetElementButton(lx, ly, new_element, button);
10664         }
10665       }
10666       else
10667       {
10668         int type_id = gi->custom_type_id;
10669         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
10670
10671         if (item_xsize == MINI_TILEX && item_ysize == MINI_TILEY)
10672           DrawMiniGraphicExt(drawto,
10673                              gi->x + sx * MINI_TILEX,
10674                              gi->y + sy * MINI_TILEY,
10675                              el2edimg(new_element));
10676         else
10677           DrawFixedGraphicExt(drawto,
10678                               gi->x + sx * TILEX,
10679                               gi->y + sy * TILEY,
10680                               el2img(new_element), 0);
10681
10682         if (id == GADGET_ID_CUSTOM_GRAPHIC)
10683           new_element = GFX_ELEMENT(new_element);
10684
10685         drawingarea_info[type_id].value[pos] = new_element;
10686
10687         CopyElementPropertiesToGame(properties_element);
10688
10689         if (id == GADGET_ID_CUSTOM_GRAPHIC)
10690         {
10691           UpdateCustomElementGraphicGadgets();
10692
10693           FrameCounter = 0;     /* restart animation frame counter */
10694         }
10695       }
10696       break;
10697
10698     case GADGET_ID_CONNECTED_ITEMS:
10699       {
10700         static int last_sx = -1;
10701         static int last_sy = -1;
10702
10703         if (button_release_event)
10704           CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
10705
10706         if (button)
10707         {
10708           if (!button_press_event)
10709             DrawLine(last_sx, last_sy, sx, sy, new_element, TRUE);
10710
10711           last_sx = sx;
10712           last_sy = sy;
10713         }
10714       }
10715       break;
10716
10717     case GADGET_ID_LINE:
10718     case GADGET_ID_ARC:
10719     case GADGET_ID_RECTANGLE:
10720     case GADGET_ID_FILLED_BOX:
10721     case GADGET_ID_GRAB_BRUSH:
10722     case GADGET_ID_TEXT:
10723       {
10724         static int last_sx = -1;
10725         static int last_sy = -1;
10726         static int start_sx = -1;
10727         static int start_sy = -1;
10728         void (*draw_func)(int, int, int, int, int, boolean);
10729
10730         if (drawing_function == GADGET_ID_LINE)
10731           draw_func = DrawLine;
10732         else if (drawing_function == GADGET_ID_ARC)
10733           draw_func = DrawArc;
10734         else if (drawing_function == GADGET_ID_RECTANGLE)
10735           draw_func = DrawBox;
10736         else if (drawing_function == GADGET_ID_FILLED_BOX)
10737           draw_func = DrawFilledBox;
10738         else if (drawing_function == GADGET_ID_GRAB_BRUSH)
10739           draw_func = SelectArea;
10740         else /* (drawing_function == GADGET_ID_TEXT) */
10741           draw_func = SetTextCursor;
10742
10743         if (button_press_event)
10744         {
10745           draw_func(sx, sy, sx, sy, new_element, FALSE);
10746           start_sx = last_sx = sx;
10747           start_sy = last_sy = sy;
10748
10749           if (drawing_function == GADGET_ID_TEXT)
10750             DrawLevelText(0, 0, 0, TEXT_END);
10751         }
10752         else if (button_release_event)
10753         {
10754           draw_func(start_sx, start_sy, sx, sy, new_element, TRUE);
10755           if (drawing_function == GADGET_ID_GRAB_BRUSH)
10756           {
10757             CopyAreaToBrush(start_sx, start_sy, sx, sy, button);
10758             CopyBrushToCursor(sx, sy);
10759             ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
10760                           MB_LEFTBUTTON);
10761             draw_with_brush = TRUE;
10762           }
10763           else if (drawing_function == GADGET_ID_TEXT)
10764             DrawLevelText(sx, sy, 0, TEXT_INIT);
10765           else
10766             CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
10767         }
10768         else if (last_sx != sx || last_sy != sy)
10769         {
10770           draw_func(start_sx, start_sy, last_sx, last_sy, -1, FALSE);
10771           draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
10772           last_sx = sx;
10773           last_sy = sy;
10774         }
10775       }
10776       break;
10777
10778     case GADGET_ID_FLOOD_FILL:
10779       if (button_press_event && Feld[lx][ly] != new_element)
10780       {
10781         FloodFill(lx, ly, new_element);
10782         DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
10783         CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
10784       }
10785       break;
10786
10787     case GADGET_ID_PICK_ELEMENT:
10788       if (button_release_event)
10789         ClickOnGadget(level_editor_gadget[last_drawing_function],
10790                       MB_LEFTBUTTON);
10791       else if (draw_level)
10792         PickDrawingElement(button, Feld[lx][ly]);
10793       else
10794       {
10795         int type_id = gi->custom_type_id;
10796         int pos = sx * drawingarea_info[type_id].area_ysize + sy;
10797
10798         PickDrawingElement(button, drawingarea_info[type_id].value[pos]);
10799       }
10800
10801       break;
10802
10803     default:
10804       break;
10805   }
10806 }
10807
10808 static void HandleCounterButtons(struct GadgetInfo *gi)
10809 {
10810   int gadget_id = gi->custom_id;
10811   int counter_id = gi->custom_type_id;
10812   int button = gi->event.button;
10813   int *counter_value = counterbutton_info[counter_id].value;
10814   int step = BUTTON_STEPSIZE(button) *
10815     (gadget_id == counterbutton_info[counter_id].gadget_id_down ? -1 : +1);
10816
10817   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
10818   {
10819     boolean pressed = (gi->event.type == GD_EVENT_PRESSED);
10820     boolean released = (gi->event.type == GD_EVENT_RELEASED);
10821     boolean level_changed = LevelChanged();
10822
10823     if ((level_changed && pressed) || (!level_changed && released))
10824       return;
10825
10826     if (level_changed && !Request("Level has changed! Discard changes?",
10827                                   REQ_ASK))
10828     {
10829       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
10830         ModifyEditorCounterValue(counter_id, *counter_value);
10831
10832       return;
10833     }
10834   }
10835
10836   if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
10837     *counter_value = gi->textinput.number_value;
10838   else
10839     ModifyEditorCounterValue(counter_id, *counter_value + step);
10840
10841   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
10842   {
10843       LoadLevel(level_nr);
10844       LoadScore(level_nr);
10845
10846       TapeErase();
10847
10848       ResetUndoBuffer();
10849       DrawEditModeWindow();
10850
10851       return;
10852   }
10853
10854   switch (counter_id)
10855   {
10856     case ED_COUNTER_ID_YAMYAM_CONTENT:
10857       DrawYamYamContentAreas();
10858       break;
10859
10860     case ED_COUNTER_ID_BALL_CONTENT:
10861       DrawMagicBallContentAreas();
10862       break;
10863
10864     case ED_COUNTER_ID_ANDROID_CONTENT:
10865       DrawAndroidElementArea(properties_element);
10866       break;
10867
10868     case ED_COUNTER_ID_GROUP_CONTENT:
10869       DrawGroupElementArea(properties_element);
10870       CopyGroupElementPropertiesToGame(properties_element);
10871       break;
10872
10873     case ED_COUNTER_ID_INVENTORY_SIZE:
10874       DrawPlayerInitialInventoryArea(properties_element);
10875       break;
10876
10877     case ED_COUNTER_ID_ENVELOPE_XSIZE:
10878     case ED_COUNTER_ID_ENVELOPE_YSIZE:
10879       DrawEnvelopeTextArea(-1);
10880       break;
10881
10882     case ED_COUNTER_ID_LEVEL_XSIZE:
10883     case ED_COUNTER_ID_LEVEL_YSIZE:
10884       lev_fieldx = level.fieldx;
10885       lev_fieldy = level.fieldy;
10886
10887       /* check if resizing of level results in change of border border */
10888       SetBorderElement();
10889
10890       break;
10891
10892     default:
10893       break;
10894   }
10895
10896   if ((counter_id >= ED_COUNTER_ID_CUSTOM_FIRST &&
10897        counter_id <= ED_COUNTER_ID_CUSTOM_LAST) ||
10898       (counter_id >= ED_COUNTER_ID_CHANGE_FIRST &&
10899        counter_id <= ED_COUNTER_ID_CHANGE_LAST))
10900     CopyElementPropertiesToGame(properties_element);
10901
10902   level.changed = TRUE;
10903 }
10904
10905 static void HandleTextInputGadgets(struct GadgetInfo *gi)
10906 {
10907   int type_id = gi->custom_type_id;
10908
10909   strcpy(textinput_info[type_id].value, gi->textinput.value);
10910
10911   if (type_id == ED_TEXTINPUT_ID_ELEMENT_NAME)
10912   {
10913     CopyElementPropertiesToGame(properties_element);
10914
10915     ModifyEditorElementList();  /* update changed button info text */
10916   }
10917
10918   level.changed = TRUE;
10919 }
10920
10921 static void HandleTextAreaGadgets(struct GadgetInfo *gi)
10922 {
10923   int type_id = gi->custom_type_id;
10924
10925   strncpy(textarea_info[type_id].value, gi->textarea.value,
10926           MAX_ENVELOPE_TEXT_LEN);
10927   textarea_info[type_id].value[MAX_ENVELOPE_TEXT_LEN] = '\0';
10928
10929   level.changed = TRUE;
10930 }
10931
10932 static void HandleSelectboxGadgets(struct GadgetInfo *gi)
10933 {
10934   int type_id = gi->custom_type_id;
10935   int value_old = *selectbox_info[type_id].value;
10936   int value_new = selectbox_info[type_id].options[gi->selectbox.index].value;
10937
10938   *selectbox_info[type_id].value = value_new;
10939
10940   if (type_id == ED_SELECTBOX_ID_SELECT_CHANGE_PAGE)
10941   {
10942     element_info[properties_element].current_change_page = gi->selectbox.index;
10943
10944     DrawPropertiesWindow();
10945   }
10946   else if ((type_id >= ED_SELECTBOX_ID_CUSTOM_FIRST &&
10947             type_id <= ED_SELECTBOX_ID_CUSTOM_LAST) ||
10948            (type_id >= ED_SELECTBOX_ID_CHANGE_FIRST &&
10949             type_id <= ED_SELECTBOX_ID_CHANGE_LAST) ||
10950            (type_id == ED_SELECTBOX_ID_GROUP_CHOICE_MODE))
10951   {
10952     if (type_id == ED_SELECTBOX_ID_ACTION_TYPE)
10953     {
10954       /* when changing action type, also check action mode and action arg */
10955       if (value_old != value_new)
10956         setSelectboxSpecialActionVariablesIfNeeded();
10957
10958       DrawPropertiesChange();
10959     }
10960
10961     CopyElementPropertiesToGame(properties_element);
10962
10963     level.changed = TRUE;
10964   }
10965 }
10966
10967 static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
10968 {
10969   int type_id = gi->custom_type_id;
10970   int i;
10971
10972   if (type_id >= ED_TEXTBUTTON_ID_LEVELINFO_FIRST &&
10973       type_id <= ED_TEXTBUTTON_ID_LEVELINFO_LAST)
10974   {
10975     edit_mode_levelinfo = gi->custom_type_id;
10976
10977     DrawLevelInfoWindow();
10978   }
10979   else if (type_id >= ED_TEXTBUTTON_ID_PROPERTIES_FIRST &&
10980            type_id <= ED_TEXTBUTTON_ID_PROPERTIES_LAST)
10981   {
10982     edit_mode_properties = gi->custom_type_id;
10983
10984     DrawPropertiesWindow();
10985   }
10986   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE)
10987   {
10988     char *template_filename = getDefaultLevelFilename(-1);
10989     boolean new_template = !fileExists(template_filename);
10990
10991     /* backup original "level.field" (needed to track playfield changes) */
10992     CopyPlayfield(level.field, FieldBackup);
10993
10994     /* "SaveLevelTemplate()" uses "level.field", so copy editor playfield */
10995     CopyPlayfield(Feld, level.field);
10996
10997     if (new_template ||
10998         Request("Save this template and kill the old?", REQ_ASK))
10999       SaveLevelTemplate();
11000
11001     if (new_template)
11002       Request("Template saved!", REQ_CONFIRM);
11003
11004     /* restore original "level.field" (needed to track playfield changes) */
11005     CopyPlayfield(FieldBackup, level.field);
11006   }
11007   else if (type_id == ED_TEXTBUTTON_ID_ADD_CHANGE_PAGE &&
11008            custom_element.num_change_pages < MAX_CHANGE_PAGES)
11009   {
11010     struct ElementInfo *ei = &element_info[properties_element];
11011
11012     setElementChangePages(ei, ei->num_change_pages + 1);
11013
11014     /* set new change page to be new current change page */
11015     ei->current_change_page = ei->num_change_pages - 1;
11016     ei->change = &ei->change_page[ei->current_change_page];
11017
11018     setElementChangeInfoToDefaults(ei->change);
11019
11020     DrawPropertiesWindow();
11021
11022     level.changed = TRUE;
11023   }
11024   else if (type_id == ED_TEXTBUTTON_ID_DEL_CHANGE_PAGE &&
11025            custom_element.num_change_pages > MIN_CHANGE_PAGES)
11026   {
11027     struct ElementInfo *ei = &element_info[properties_element];
11028
11029     /* copy all change pages after change page to be deleted */
11030     for (i = ei->current_change_page; i < ei->num_change_pages - 1; i++)
11031       ei->change_page[i] = ei->change_page[i + 1];
11032
11033     setElementChangePages(ei, ei->num_change_pages - 1);
11034
11035     DrawPropertiesWindow();
11036
11037     level.changed = TRUE;
11038   }
11039 }
11040
11041 static void HandleGraphicbuttonGadgets(struct GadgetInfo *gi)
11042 {
11043   int type_id = gi->custom_type_id;
11044
11045   if (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ||
11046       type_id == ED_GRAPHICBUTTON_ID_NEXT_CHANGE_PAGE)
11047   {
11048     struct ElementInfo *ei = &element_info[properties_element];
11049     int step = BUTTON_STEPSIZE(gi->event.button);
11050
11051     step *= (type_id == ED_GRAPHICBUTTON_ID_PREV_CHANGE_PAGE ? -1 : +1);
11052     ei->current_change_page += step;
11053
11054     if (ei->current_change_page < 0)
11055       ei->current_change_page = 0;
11056     else if (ei->current_change_page >= ei->num_change_pages)
11057       ei->current_change_page = ei->num_change_pages - 1;
11058
11059     DrawPropertiesWindow();
11060   }
11061   else if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE ||
11062            type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
11063   {
11064     struct ElementInfo *ei = &element_info[properties_element];
11065     int current_change_page = ei->current_change_page;
11066
11067     if (type_id == ED_GRAPHICBUTTON_ID_COPY_CHANGE_PAGE)
11068       element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0] =
11069         ei->change_page[current_change_page];
11070     else if (type_id == ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE)
11071     {
11072       ei->change_page[current_change_page] =
11073         element_info[EL_INTERNAL_CLIPBOARD_CHANGE].change_page[0];
11074
11075       level.changed = TRUE;
11076     }
11077
11078     DrawPropertiesWindow();
11079   }
11080 }
11081
11082 static void HandleRadiobuttons(struct GadgetInfo *gi)
11083 {
11084   *radiobutton_info[gi->custom_type_id].value =
11085     radiobutton_info[gi->custom_type_id].checked_value;
11086
11087   level.changed = TRUE;
11088 }
11089
11090 static void HandleCheckbuttons(struct GadgetInfo *gi)
11091 {
11092   int type_id = gi->custom_type_id;
11093
11094   *checkbutton_info[type_id].value ^= TRUE;
11095
11096   if (type_id == ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID ||
11097       type_id == ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID ||
11098       type_id == ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH ||
11099       (((type_id >= ED_CHECKBUTTON_ID_CUSTOM_FIRST &&
11100          type_id <= ED_CHECKBUTTON_ID_CUSTOM_LAST) ||
11101         (type_id >= ED_CHECKBUTTON_ID_CHANGE_FIRST &&
11102          type_id <= ED_CHECKBUTTON_ID_CHANGE_LAST)) &&
11103        type_id != ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE))
11104   {
11105     CopyElementPropertiesToGame(properties_element);
11106   }
11107
11108   if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC)
11109   {
11110     UpdateCustomElementGraphicGadgets();
11111   }
11112   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE)
11113   {
11114     char *template_filename = getDefaultLevelFilename(-1);
11115
11116     if (level.use_custom_template && !fileExists(template_filename))
11117     {
11118       Request("No level template found!", REQ_CONFIRM);
11119
11120       level.use_custom_template = FALSE;
11121       ModifyGadget(gi, GDI_CHECKED, FALSE, GDI_END);
11122
11123       return;
11124     }
11125
11126     LoadLevelTemplate(level.use_custom_template ? -1 : level_nr);
11127
11128     DrawEditModeWindow();
11129   }
11130
11131   level.changed = TRUE;
11132 }
11133
11134 static void HandleControlButtons(struct GadgetInfo *gi)
11135 {
11136   static int last_level_drawing_function = GADGET_ID_SINGLE_ITEMS;
11137   static int last_edit_mode = ED_MODE_DRAWING;
11138   static int last_custom_copy_mode = -1;
11139   int id = gi->custom_id;
11140   int button = gi->event.button;
11141   int step = BUTTON_STEPSIZE(button);
11142   int new_element = BUTTON_ELEMENT(button);
11143   int x, y;
11144
11145   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
11146     DrawLevelText(0, 0, 0, TEXT_END);
11147
11148   if (id < ED_NUM_CTRL1_BUTTONS &&
11149       id != GADGET_ID_SINGLE_ITEMS &&
11150       id != GADGET_ID_PICK_ELEMENT &&
11151       edit_mode != ED_MODE_DRAWING &&
11152       drawing_function != GADGET_ID_PICK_ELEMENT &&
11153       !(GetKeyModState() & KMOD_Control))
11154   {
11155     DrawDrawingWindow();
11156     edit_mode = ED_MODE_DRAWING;
11157   }
11158
11159   /* element copy mode active, but no element button pressed => deactivate */
11160   if (last_custom_copy_mode != -1 && id < ED_NUM_CTRL_BUTTONS)
11161     last_custom_copy_mode = -1;
11162
11163   switch (id)
11164   {
11165     case GADGET_ID_SCROLL_LEFT:
11166       if (level_xpos >= 0)
11167       {
11168         if (lev_fieldx < ed_fieldx - 2)
11169           break;
11170
11171         level_xpos -= step;
11172         if (level_xpos < -1)
11173           level_xpos = -1;
11174         if (button == 1)
11175           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_RIGHT);
11176         else
11177           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11178
11179         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
11180                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
11181       }
11182       break;
11183
11184     case GADGET_ID_SCROLL_RIGHT:
11185       if (level_xpos <= lev_fieldx - ed_fieldx)
11186       {
11187         if (lev_fieldx < ed_fieldx - 2)
11188           break;
11189
11190         level_xpos += step;
11191         if (level_xpos > lev_fieldx - ed_fieldx + 1)
11192           level_xpos = lev_fieldx - ed_fieldx + 1;
11193         if (button == 1)
11194           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_LEFT);
11195         else
11196           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11197
11198         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_HORIZONTAL],
11199                      GDI_SCROLLBAR_ITEM_POSITION, level_xpos + 1, GDI_END);
11200       }
11201       break;
11202
11203     case GADGET_ID_SCROLL_UP:
11204       if (level_ypos >= 0)
11205       {
11206         if (lev_fieldy < ed_fieldy - 2)
11207           break;
11208
11209         level_ypos -= step;
11210         if (level_ypos < -1)
11211           level_ypos = -1;
11212         if (button == 1)
11213           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_DOWN);
11214         else
11215           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11216
11217         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
11218                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
11219       }
11220       break;
11221
11222     case GADGET_ID_SCROLL_DOWN:
11223       if (level_ypos <= lev_fieldy - ed_fieldy)
11224       {
11225         if (lev_fieldy < ed_fieldy - 2)
11226           break;
11227
11228         level_ypos += step;
11229         if (level_ypos > lev_fieldy - ed_fieldy + 1)
11230           level_ypos = lev_fieldy - ed_fieldy + 1;
11231         if (button == 1)
11232           ScrollEditorLevel(level_xpos, level_ypos, ED_SCROLL_UP);
11233         else
11234           DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11235
11236         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_VERTICAL],
11237                      GDI_SCROLLBAR_ITEM_POSITION, level_ypos + 1, GDI_END);
11238       }
11239       break;
11240
11241     case GADGET_ID_SCROLL_HORIZONTAL:
11242       level_xpos = gi->event.item_position - 1;
11243       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11244       break;
11245
11246     case GADGET_ID_SCROLL_VERTICAL:
11247       level_ypos = gi->event.item_position - 1;
11248       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11249       break;
11250
11251     case GADGET_ID_SCROLL_LIST_UP:
11252     case GADGET_ID_SCROLL_LIST_DOWN:
11253     case GADGET_ID_SCROLL_LIST_VERTICAL:
11254       if (id == GADGET_ID_SCROLL_LIST_VERTICAL)
11255         element_shift = gi->event.item_position * ED_ELEMENTLIST_BUTTONS_HORIZ;
11256       else
11257       {
11258         step *= (id == GADGET_ID_SCROLL_LIST_UP ? -1 : +1);
11259         element_shift += step * ED_ELEMENTLIST_BUTTONS_HORIZ;
11260
11261         if (element_shift < 0)
11262           element_shift = 0;
11263         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
11264           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
11265
11266         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
11267                      GDI_SCROLLBAR_ITEM_POSITION,
11268                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
11269       }
11270
11271       ModifyEditorElementList();
11272
11273       break;
11274
11275     case GADGET_ID_PROPERTIES:
11276       if (edit_mode != ED_MODE_PROPERTIES)
11277       {
11278         properties_element = new_element;
11279         DrawPropertiesWindow();
11280         edit_mode = ED_MODE_PROPERTIES;
11281
11282         last_level_drawing_function = drawing_function;
11283         ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS],
11284                       MB_LEFTBUTTON);
11285       }
11286       else
11287       {
11288         DrawDrawingWindow();
11289         edit_mode = ED_MODE_DRAWING;
11290
11291         ClickOnGadget(level_editor_gadget[last_level_drawing_function],
11292                       MB_LEFTBUTTON);
11293       }
11294       break;
11295
11296     case GADGET_ID_WRAP_LEFT:
11297       WrapLevel(-step, 0);
11298       break;
11299
11300     case GADGET_ID_WRAP_RIGHT:
11301       WrapLevel(step, 0);
11302       break;
11303
11304     case GADGET_ID_WRAP_UP:
11305       WrapLevel(0, -step);
11306       break;
11307
11308     case GADGET_ID_WRAP_DOWN:
11309       WrapLevel(0, step);
11310       break;
11311
11312     case GADGET_ID_SINGLE_ITEMS:
11313     case GADGET_ID_CONNECTED_ITEMS:
11314     case GADGET_ID_LINE:
11315     case GADGET_ID_ARC:
11316     case GADGET_ID_TEXT:
11317     case GADGET_ID_RECTANGLE:
11318     case GADGET_ID_FILLED_BOX:
11319     case GADGET_ID_FLOOD_FILL:
11320     case GADGET_ID_GRAB_BRUSH:
11321     case GADGET_ID_PICK_ELEMENT:
11322       if (drawing_function != GADGET_ID_PICK_ELEMENT)
11323         last_drawing_function = drawing_function;
11324       drawing_function = id;
11325       draw_with_brush = FALSE;
11326       break;
11327
11328     case GADGET_ID_RANDOM_PLACEMENT:
11329       RandomPlacement(new_element);
11330       break;
11331
11332     case GADGET_ID_ZOOM:
11333       // zoom level editor tile size in or out (or reset to default size)
11334       ed_tilesize = (button == 1 ? ed_tilesize / 2 :
11335                      button == 2 ? DEFAULT_EDITOR_TILESIZE :
11336                      button == 3 ? ed_tilesize * 2 : ed_tilesize);
11337
11338       // limit zoom level by upper and lower bound
11339       ed_tilesize = MIN(MAX(MICRO_TILESIZE, ed_tilesize), TILESIZE);
11340
11341       InitZoomLevelSettings();
11342
11343       if (edit_mode == ED_MODE_DRAWING)
11344         DrawDrawingWindow();
11345
11346       break;
11347
11348     case GADGET_ID_CUSTOM_COPY_FROM:
11349     case GADGET_ID_CUSTOM_COPY_TO:
11350     case GADGET_ID_CUSTOM_EXCHANGE:
11351       last_custom_copy_mode = id;
11352       last_drawing_function = drawing_function;
11353       break;
11354
11355     case GADGET_ID_CUSTOM_COPY:
11356       CopyCustomElement(properties_element, -1, id);
11357       break;
11358
11359     case GADGET_ID_CUSTOM_PASTE:
11360       CopyCustomElement(-1, properties_element, id);
11361       break;
11362
11363     case GADGET_ID_UNDO:
11364       if (button == 1 && undo_buffer_steps == 0)
11365       {
11366         Request("Undo buffer empty!", REQ_CONFIRM);
11367
11368         break;
11369       }
11370       else if (button == 2)
11371       {
11372         break;
11373       }
11374       else if (button == 3 && redo_buffer_steps == 0)
11375       {
11376         Request("Redo buffer empty!", REQ_CONFIRM);
11377
11378         break;
11379       }
11380
11381       if (edit_mode != ED_MODE_DRAWING)
11382       {
11383         DrawDrawingWindow();
11384         edit_mode = ED_MODE_DRAWING;
11385       }
11386
11387       if (button == 1)
11388       {
11389         /* undo */
11390
11391         undo_buffer_position =
11392           (undo_buffer_position - 1 + NUM_UNDO_STEPS) % NUM_UNDO_STEPS;
11393
11394         undo_buffer_steps--;
11395         redo_buffer_steps++;
11396       }
11397       else
11398       {
11399         /* redo */
11400
11401         undo_buffer_position = (undo_buffer_position + 1) % NUM_UNDO_STEPS;
11402
11403         undo_buffer_steps++;
11404         redo_buffer_steps--;
11405       }
11406
11407       for (x = 0; x < lev_fieldx; x++)
11408         for (y = 0; y < lev_fieldy; y++)
11409           Feld[x][y] = UndoBuffer[undo_buffer_position][x][y];
11410
11411       /* check if undo operation forces change of border style */
11412       CheckLevelBorderElement(FALSE);
11413
11414       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11415
11416       break;
11417
11418     case GADGET_ID_INFO:
11419       if (edit_mode != ED_MODE_INFO)
11420       {
11421         last_edit_mode = edit_mode;
11422         edit_mode = ED_MODE_INFO;
11423
11424         DrawLevelInfoWindow();
11425       }
11426       else
11427       {
11428         edit_mode = last_edit_mode;
11429
11430         DrawEditModeWindow();
11431       }
11432       break;
11433
11434     case GADGET_ID_CLEAR:
11435       if (edit_mode != ED_MODE_DRAWING)
11436       {
11437         DrawDrawingWindow();
11438         edit_mode = ED_MODE_DRAWING;
11439       }
11440
11441       for (x = 0; x < MAX_LEV_FIELDX; x++)
11442         for (y = 0; y < MAX_LEV_FIELDY; y++)
11443           Feld[x][y] = (button == 1 ? EL_EMPTY : new_element);
11444
11445       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
11446
11447       DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
11448       break;
11449
11450     case GADGET_ID_SAVE:
11451     {
11452       /* saving read-only levels into personal level set modifies global vars
11453          "leveldir_current" and "level_nr"; restore them after saving level */
11454       LevelDirTree *leveldir_former = leveldir_current;
11455       int level_nr_former = level_nr;
11456       char *level_filename;
11457       boolean new_level;
11458
11459       if (leveldir_current->readonly &&
11460           !PrepareSavingIntoPersonalLevelSet())
11461         break;
11462
11463       level_filename = getDefaultLevelFilename(level_nr);
11464       new_level = !fileExists(level_filename);
11465
11466       if (new_level ||
11467           Request("Save this level and kill the old?", REQ_ASK))
11468       {
11469         if (leveldir_former->readonly)
11470           ModifyLevelInfoForSavingIntoPersonalLevelSet(leveldir_former->name);
11471
11472         CopyPlayfield(Feld, level.field);
11473         SaveLevel(level_nr);
11474
11475         level.changed = FALSE;
11476
11477         if (new_level)
11478         {
11479           char level_saved_msg[64];
11480
11481           if (leveldir_former->readonly)
11482             sprintf(level_saved_msg,
11483                     "Level saved as level %d into personal level set!",
11484                     level_nr);
11485           else
11486             strcpy(level_saved_msg, "Level saved!");
11487
11488           Request(level_saved_msg, REQ_CONFIRM);
11489         }
11490       }
11491
11492       /* "cd" back to copied-from levelset (in case of saved read-only level) */
11493       leveldir_current = leveldir_former;
11494       level_nr = level_nr_former;
11495
11496       break;
11497     }
11498
11499     case GADGET_ID_TEST:
11500       if (LevelChanged())
11501         level.game_version = GAME_VERSION_ACTUAL;
11502
11503       CopyPlayfield(level.field, FieldBackup);
11504       CopyPlayfield(Feld, level.field);
11505
11506       CopyNativeLevel_RND_to_Native(&level);
11507
11508       UnmapLevelEditorGadgets();
11509       UndrawSpecialEditorDoor();
11510
11511       CloseDoor(DOOR_CLOSE_ALL);
11512
11513       /* needed before playing if editor playfield area has different size */
11514       ClearRectangle(drawto, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
11515
11516       // redraw_mask = REDRAW_ALL;
11517
11518       level_editor_test_game = TRUE;
11519
11520       StartGameActions(FALSE, setup.autorecord, level.random_seed);
11521
11522       break;
11523
11524     case GADGET_ID_EXIT:
11525       RequestExitLevelEditor(TRUE, FALSE);  /* if level has changed, ask user */
11526       break;
11527
11528     default:
11529       if (id >= GADGET_ID_ELEMENTLIST_FIRST &&
11530           id <= GADGET_ID_ELEMENTLIST_LAST)
11531       {
11532         int element_position = id - GADGET_ID_ELEMENTLIST_FIRST;
11533         int new_element = editor_elements[element_position + element_shift];
11534
11535         if (IS_EDITOR_CASCADE(new_element))
11536         {
11537           int i;
11538
11539           for (i = 0; editor_elements_info[i].setup_value != NULL; i++)
11540           {
11541             int *cascade_element= &(*editor_elements_info[i].headline_list)[0];
11542             boolean *cascade_value=editor_elements_info[i].setup_cascade_value;
11543
11544             if (*cascade_element == new_element)
11545             {
11546               *cascade_element = EL_CASCADE_TOGGLE(*cascade_element);
11547               *cascade_value = IS_EDITOR_CASCADE_ACTIVE(*cascade_element);
11548
11549               /* update element selection list */
11550               ReinitializeElementList();
11551               ModifyEditorElementList();
11552
11553               /* update cascading gadget info text */
11554               PrintEditorGadgetInfoText(level_editor_gadget[id]);
11555
11556               /* save current editor cascading state */
11557               SaveSetup_EditorCascade();
11558
11559               break;
11560             }
11561           }
11562
11563           break;
11564         }
11565
11566         if (last_custom_copy_mode != -1)
11567         {
11568           if (CopyCustomElement(properties_element, new_element,
11569                                 last_custom_copy_mode))
11570           {
11571             ClickOnGadget(level_editor_gadget[last_drawing_function],
11572                           MB_LEFTBUTTON);
11573
11574             last_custom_copy_mode = -1;
11575           }
11576
11577           break;
11578         }
11579
11580         PickDrawingElement(button, new_element);
11581
11582         if (!stick_element_properties_window &&
11583             drawing_function != GADGET_ID_PICK_ELEMENT &&
11584             !(GetKeyModState() & KMOD_Control))
11585         {
11586           properties_element = new_element;
11587           if (edit_mode == ED_MODE_PROPERTIES)
11588             DrawPropertiesWindow();
11589         }
11590
11591         if (drawing_function == GADGET_ID_PICK_ELEMENT)
11592           ClickOnGadget(level_editor_gadget[last_drawing_function],
11593                         MB_LEFTBUTTON);
11594       }
11595 #ifdef DEBUG
11596       else if (gi->event.type == GD_EVENT_PRESSED)
11597         printf("default: HandleControlButtons: GD_EVENT_PRESSED(%d)\n", id);
11598       else if (gi->event.type == GD_EVENT_RELEASED)
11599         printf("default: HandleControlButtons: GD_EVENT_RELEASED(%d)\n", id);
11600       else if (gi->event.type == GD_EVENT_MOVING)
11601         printf("default: HandleControlButtons: GD_EVENT_MOVING(%d)\n", id);
11602       else
11603         printf("default: HandleControlButtons: ? (id == %d)\n", id);
11604 #endif
11605       break;
11606   }
11607 }
11608
11609 void HandleLevelEditorKeyInput(Key key)
11610 {
11611   char letter = getCharFromKey(key);
11612   int button = MB_LEFTBUTTON;
11613
11614   if (drawing_function == GADGET_ID_TEXT &&
11615       DrawLevelText(0, 0, 0, TEXT_QUERY_TYPING) == TRUE)
11616   {
11617     if (letter)
11618       DrawLevelText(0, 0, letter, TEXT_WRITECHAR);
11619     else if (key == KSYM_Delete || key == KSYM_BackSpace)
11620       DrawLevelText(0, 0, 0, TEXT_BACKSPACE);
11621     else if (key == KSYM_Return)
11622       DrawLevelText(0, 0, 0, TEXT_NEWLINE);
11623     else if (key == KSYM_Escape)
11624       DrawLevelText(0, 0, 0, TEXT_END);
11625   }
11626   else if (button_status == MB_RELEASED)
11627   {
11628     int id = GADGET_ID_NONE;
11629     int new_element_shift = element_shift;
11630     int i;
11631
11632     switch (key)
11633     {
11634       case KSYM_Left:
11635         id = GADGET_ID_SCROLL_LEFT;
11636         break;
11637       case KSYM_Right:
11638         id = GADGET_ID_SCROLL_RIGHT;
11639         break;
11640       case KSYM_Up:
11641         id = GADGET_ID_SCROLL_UP;
11642         break;
11643       case KSYM_Down:
11644         id = GADGET_ID_SCROLL_DOWN;
11645         break;
11646       case KSYM_Page_Up:
11647         id = GADGET_ID_SCROLL_LIST_UP;
11648         button = ED_ELEMENTLIST_BUTTONS_VERT - 1;
11649         break;
11650       case KSYM_Page_Down:
11651         id = GADGET_ID_SCROLL_LIST_DOWN;
11652         button = ED_ELEMENTLIST_BUTTONS_VERT - 1;
11653         break;
11654
11655       case KSYM_Home:
11656       case KSYM_End:
11657         element_shift = (key == KSYM_Home ? 0 :
11658                          num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS);
11659
11660         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
11661                      GDI_SCROLLBAR_ITEM_POSITION,
11662                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
11663
11664         ModifyEditorElementList();
11665
11666         break;
11667
11668       case KSYM_Insert:
11669       case KSYM_Delete:
11670
11671         /* this is needed to prevent interference with running "True X-Mouse" */
11672         if (GetKeyModStateFromEvents() & KMOD_Control)
11673           break;
11674
11675         /* check for last or next editor cascade block in element list */
11676         for (i = 0; i < num_editor_elements; i++)
11677         {
11678           if ((key == KSYM_Insert && i == element_shift) ||
11679               (key == KSYM_Delete && new_element_shift > element_shift))
11680             break;
11681
11682           /* jump to next cascade block (or to start of element list) */
11683           if (i == 0 || IS_EDITOR_CASCADE(editor_elements[i]))
11684             new_element_shift = i;
11685         }
11686
11687         if (i < num_editor_elements)
11688           element_shift = new_element_shift;
11689
11690         if (element_shift > num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS)
11691           element_shift = num_editor_elements - ED_NUM_ELEMENTLIST_BUTTONS;
11692
11693         ModifyGadget(level_editor_gadget[GADGET_ID_SCROLL_LIST_VERTICAL],
11694                      GDI_SCROLLBAR_ITEM_POSITION,
11695                      element_shift / ED_ELEMENTLIST_BUTTONS_HORIZ, GDI_END);
11696
11697         ModifyEditorElementList();
11698
11699         break;
11700
11701       case KSYM_Escape:
11702         if (edit_mode == ED_MODE_DRAWING)
11703         {
11704           RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
11705         }
11706         else if (edit_mode == ED_MODE_INFO)
11707         {
11708           HandleControlButtons(level_editor_gadget[GADGET_ID_INFO]);
11709         }
11710         else if (edit_mode == ED_MODE_PROPERTIES)
11711         {
11712           HandleControlButtons(level_editor_gadget[GADGET_ID_PROPERTIES]);
11713         }
11714         else            /* should never happen */
11715         {
11716           DrawDrawingWindow();
11717           edit_mode = ED_MODE_DRAWING;
11718         }
11719
11720         break;
11721
11722       default:
11723         break;
11724     }
11725
11726     if (id != GADGET_ID_NONE)
11727       ClickOnGadget(level_editor_gadget[id], button);
11728     else if (letter >= '1' && letter <= '3')
11729       ClickOnGadget(level_editor_gadget[GADGET_ID_PROPERTIES], letter - '0');
11730     else if (letter == '?')
11731       ClickOnGadget(level_editor_gadget[GADGET_ID_PROPERTIES], button);
11732     else if (letter == '.')
11733       ClickOnGadget(level_editor_gadget[GADGET_ID_SINGLE_ITEMS], button);
11734     else if (letter == 'U')
11735       ClickOnGadget(level_editor_gadget[GADGET_ID_UNDO], 3);
11736     else if (key == KSYM_KP_Subtract)
11737       ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 1);
11738     else if (key == KSYM_KP_0 || letter == '0')
11739       ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 2);
11740     else if (key == KSYM_KP_Add || letter == '+')
11741       ClickOnGadget(level_editor_gadget[GADGET_ID_ZOOM], 3);
11742     else if (key == KSYM_Return ||
11743              key == KSYM_space ||
11744              key == setup.shortcut.toggle_pause)
11745       ClickOnGadget(level_editor_gadget[GADGET_ID_TEST], button);
11746     else
11747       for (i = 0; i < ED_NUM_CTRL_BUTTONS; i++)
11748         if (letter && letter == controlbutton_info[i].shortcut)
11749           if (!anyTextGadgetActive())
11750             ClickOnGadget(level_editor_gadget[i], button);
11751   }
11752 }
11753
11754 void HandleLevelEditorIdle()
11755 {
11756   static unsigned int action_delay = 0;
11757   unsigned int action_delay_value = GameFrameDelay;
11758   int xpos = 1, ypos = 2;
11759   int i;
11760
11761   if (edit_mode != ED_MODE_PROPERTIES)
11762     return;
11763
11764   if (!DelayReached(&action_delay, action_delay_value))
11765     return;
11766
11767   for (i = 0; i < ED_NUM_SELECTBOX; i++)
11768   {
11769     struct GadgetInfo *gi = level_editor_gadget[selectbox_info[i].gadget_id];
11770
11771     if (gi->mapped && gi->active && gi->selectbox.open)
11772       return;
11773   }
11774
11775   DrawEditorElementAnimation(SX + xpos * TILEX,
11776                              SY + ypos * TILEY + MINI_TILEY / 2);
11777
11778   MarkTileDirty(xpos, ypos);
11779   MarkTileDirty(xpos, ypos + 1);
11780
11781   FrameCounter++;       /* increase animation frame counter */
11782 }
11783
11784 void ClearEditorGadgetInfoText()
11785 {
11786   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
11787 }
11788
11789 void PrintEditorGadgetInfoText(struct GadgetInfo *gi)
11790 {
11791   char infotext[MAX_OUTPUT_LINESIZE + 1];
11792   char shortcut[MAX_OUTPUT_LINESIZE + 1];
11793   int max_infotext_len = getMaxInfoTextLength();
11794
11795   if (gi == NULL || gi->info_text == NULL)
11796     return;
11797
11798   strncpy(infotext, gi->info_text, max_infotext_len);
11799   infotext[max_infotext_len] = '\0';
11800
11801   if (gi->custom_id < ED_NUM_CTRL_BUTTONS)
11802   {
11803     int key = controlbutton_info[gi->custom_id].shortcut;
11804
11805     if (key)
11806     {
11807       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)
11808         sprintf(shortcut, " ('.' or '%c')", key);
11809       else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)
11810         sprintf(shortcut, " ('%c' or 'Ctrl')", key);
11811       else if (gi->custom_id == GADGET_ID_TEST)
11812         sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
11813       else if (gi->custom_id == GADGET_ID_UNDO)
11814         sprintf(shortcut, " ('%c/Shift-U')", key);
11815       else if (gi->custom_id == GADGET_ID_ZOOM)
11816         sprintf(shortcut, " ('%c', '0', '+')", key);
11817       else
11818         sprintf(shortcut, " ('%s%c')",
11819                 (key >= 'A' && key <= 'Z' ? "Shift-" : ""), key);
11820
11821       if (strlen(infotext) + strlen(shortcut) <= max_infotext_len)
11822         strcat(infotext, shortcut);
11823     }
11824   }
11825
11826   DrawText(INFOTEXT_XPOS, INFOTEXT_YPOS, infotext, FONT_TEXT_2);
11827 }
11828
11829 void HandleEditorGadgetInfoText(void *ptr)
11830 {
11831   struct GadgetInfo *gi = (struct GadgetInfo *)ptr;
11832
11833   if (game_status != GAME_MODE_EDITOR)
11834     return;
11835
11836   ClearEditorGadgetInfoText();
11837
11838   if (gi == NULL || gi->event.type == GD_EVENT_INFO_LEAVING)
11839     return;
11840
11841   /* misuse this function to delete brush cursor, if needed */
11842   if (edit_mode == ED_MODE_DRAWING && draw_with_brush)
11843     DeleteBrushFromCursor();
11844
11845   PrintEditorGadgetInfoText(gi);
11846 }
11847
11848 static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
11849 {
11850   static int start_lx, start_ly;
11851   int id = gi->custom_id;
11852   int type_id = gi->custom_type_id;
11853   int sx = gi->event.x;
11854   int sy = gi->event.y;
11855   int lx = sx + level_xpos;
11856   int ly = sy + level_ypos;
11857   int min_sx = 0, min_sy = 0;
11858   int max_sx = gi->drawing.area_xsize - 1;
11859   int max_sy = gi->drawing.area_ysize - 1;
11860   int actual_drawing_function = drawing_function;
11861   int max_infotext_len = getMaxInfoTextLength();
11862   char infotext[MAX_OUTPUT_LINESIZE + 1];
11863   char *text;
11864
11865   infotext[0] = '\0';           /* start with empty info text */
11866
11867   /* pressed Control key: simulate picking element */
11868   if (GetKeyModState() & KMOD_Control)
11869     actual_drawing_function = GADGET_ID_PICK_ELEMENT;
11870
11871   ClearEditorGadgetInfoText();
11872
11873   if (gi->event.type == GD_EVENT_INFO_LEAVING)
11874     return;
11875
11876   /* make sure to stay inside drawing area boundaries */
11877   sx = (sx < min_sx ? min_sx : sx > max_sx ? max_sx : sx);
11878   sy = (sy < min_sy ? min_sy : sy > max_sy ? max_sy : sy);
11879
11880   if (id == GADGET_ID_DRAWING_LEVEL)
11881   {
11882     if (button_status)
11883     {
11884       int min_lx = 0, min_ly = 0;
11885       int max_lx = lev_fieldx - 1, max_ly = lev_fieldy - 1;
11886
11887       /* get positions inside level field */
11888       lx = sx + level_xpos;
11889       ly = sy + level_ypos;
11890
11891       /* make sure to stay inside level field boundaries */
11892       lx = (lx < min_lx ? min_lx : lx > max_lx ? max_lx : lx);
11893       ly = (ly < min_ly ? min_ly : ly > max_ly ? max_ly : ly);
11894
11895       /* correct drawing area positions accordingly */
11896       sx = lx - level_xpos;
11897       sy = ly - level_ypos;
11898     }
11899
11900     if (IN_ED_FIELD(sx,sy) && IN_LEV_FIELD(lx, ly))
11901     {
11902       if (button_status)        /* if (gi->state == GD_BUTTON_PRESSED) */
11903       {
11904         if (gi->event.type == GD_EVENT_PRESSED)
11905         {
11906           start_lx = lx;
11907           start_ly = ly;
11908         }
11909
11910         switch (actual_drawing_function)
11911         {
11912           case GADGET_ID_SINGLE_ITEMS:
11913             text = "Drawing single items";
11914             break;
11915           case GADGET_ID_CONNECTED_ITEMS:
11916             text = "Drawing connected items";
11917             break;
11918           case GADGET_ID_LINE:
11919             text = "Drawing line";
11920             break;
11921           case GADGET_ID_ARC:
11922             text = "Drawing arc";
11923             break;
11924           case GADGET_ID_TEXT:
11925             text = "Setting text cursor";
11926             break;
11927           case GADGET_ID_RECTANGLE:
11928             text = "Drawing rectangle";
11929             break;
11930           case GADGET_ID_FILLED_BOX:
11931             text = "Drawing filled box";
11932             break;
11933           case GADGET_ID_FLOOD_FILL:
11934             text = "Flood fill";
11935             break;
11936           case GADGET_ID_GRAB_BRUSH:
11937             text = "Grabbing brush";
11938             break;
11939           case GADGET_ID_PICK_ELEMENT:
11940             text = "Picking element";
11941             break;
11942
11943           default:
11944             text = "Drawing position";
11945             break;
11946         }
11947
11948         if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
11949           sprintf(infotext, "%s: %d, %d", text, lx, ly);
11950         else
11951           sprintf(infotext, "%s: %d, %d", text,
11952                   ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
11953       }
11954       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
11955         strncpy(infotext, getElementInfoText(Feld[lx][ly]), max_infotext_len);
11956       else
11957         sprintf(infotext, "Level position: %d, %d", lx, ly);
11958     }
11959
11960     /* misuse this function to draw brush cursor, if needed */
11961     if (edit_mode == ED_MODE_DRAWING && draw_with_brush && !button_status)
11962     {
11963       if (IN_ED_FIELD(sx, sy) && IN_LEV_FIELD(lx, ly))
11964         CopyBrushToCursor(sx, sy);
11965       else
11966         DeleteBrushFromCursor();
11967     }
11968   }
11969   else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
11970   {
11971     int pos = sx * drawingarea_info[type_id].area_ysize + sy;
11972     int element = drawingarea_info[type_id].value[pos];
11973
11974     strncpy(infotext, getElementInfoText(element), max_infotext_len);
11975   }
11976   else
11977   {
11978     if (id == GADGET_ID_CUSTOM_CONTENT)
11979       sprintf(infotext, "custom element content position: %d, %d", sx, sy);
11980     else if (id == GADGET_ID_GROUP_CONTENT)
11981       sprintf(infotext, "group element position: %d", sx + 1);
11982     else if (id >= GADGET_ID_YAMYAM_CONTENT_0 &&
11983              id <= GADGET_ID_YAMYAM_CONTENT_7)
11984       sprintf(infotext, "content area %d position: %d, %d",
11985               id - GADGET_ID_YAMYAM_CONTENT_0 + 1, sx, sy);
11986     else if (id >= GADGET_ID_MAGIC_BALL_CONTENT_0 &&
11987              id <= GADGET_ID_MAGIC_BALL_CONTENT_7)
11988       sprintf(infotext, "content area %d position: %d, %d",
11989               id - GADGET_ID_MAGIC_BALL_CONTENT_0 + 1, sx, sy);
11990     else if (id == GADGET_ID_ANDROID_CONTENT)
11991       sprintf(infotext, "android element position: %d", sx + 1);
11992     else if (drawingarea_info[type_id].infotext != NULL)
11993       strcpy(infotext, drawingarea_info[type_id].infotext);
11994   }
11995
11996   infotext[max_infotext_len] = '\0';
11997
11998   if (strlen(infotext) > 0)
11999     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2, infotext);
12000 }
12001
12002 void RequestExitLevelEditor(boolean ask_if_level_has_changed,
12003                             boolean quick_quit)
12004 {
12005   if (!ask_if_level_has_changed ||
12006       !LevelChanged() ||
12007       Request("Level has changed! Exit without saving?",
12008               REQ_ASK | REQ_STAY_OPEN))
12009   {
12010     SetDoorState(DOOR_CLOSE_2);
12011
12012     if (quick_quit)
12013       FadeSkipNextFadeIn();
12014
12015     game_status = GAME_MODE_MAIN;
12016
12017     DrawAndFadeInMainMenu(playfield_area_changed ? REDRAW_ALL : REDRAW_FIELD);
12018   }
12019   else
12020   {
12021     if (!global.use_envelope_request)
12022     {
12023       CloseDoor(DOOR_CLOSE_1);
12024       OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
12025     }
12026   }
12027 }