1 /***********************************************************
2 * Artsoft Retro-Game Library *
3 *----------------------------------------------------------*
4 * (c) 1994-2002 Artsoft Entertainment *
6 * Detmolder Strasse 189 *
9 * e-mail: info@artsoft.org *
10 *----------------------------------------------------------*
12 ***********************************************************/
22 /* values for DrawGadget() */
23 #define DG_UNPRESSED 0
29 static struct GadgetInfo *gadget_list_first_entry = NULL;
30 static struct GadgetInfo *gadget_list_last_entry = NULL;
31 static int next_free_gadget_id = 1;
32 static boolean gadget_id_wrapped = FALSE;
34 static struct GadgetInfo *getGadgetInfoFromGadgetID(int id)
36 struct GadgetInfo *gi = gadget_list_first_entry;
38 while (gi && gi->id != id)
44 static int getNewGadgetID()
46 int id = next_free_gadget_id++;
48 if (next_free_gadget_id <= 0) /* counter overrun */
50 gadget_id_wrapped = TRUE; /* now we must check each ID */
51 next_free_gadget_id = 0;
54 if (gadget_id_wrapped)
56 next_free_gadget_id++;
57 while (getGadgetInfoFromGadgetID(next_free_gadget_id) != NULL)
58 next_free_gadget_id++;
61 if (next_free_gadget_id <= 0) /* cannot get new gadget id */
62 Error(ERR_EXIT, "too much gadgets -- this should not happen");
68 void DUMP_GADGET_MAP_STATE()
70 struct GadgetInfo *gi = gadget_list_first_entry;
74 printf("-XXX-1-> '%s': %s\n",
75 gi->info_text, (gi->mapped ? "mapped" : "not mapped"));
82 static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my)
84 struct GadgetInfo *gi;
86 /* open selectboxes may overlap other active gadgets, so check them first */
87 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
89 if (gi->mapped && gi->active &&
90 gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
91 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
92 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
96 /* check all other gadgets */
97 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
99 if (gi->mapped && gi->active &&
100 mx >= gi->x && mx < gi->x + gi->width &&
101 my >= gi->y && my < gi->y + gi->height)
108 static void setTextAreaCursorExt(struct GadgetInfo *gi, boolean set_cursor_pos)
110 char *text = gi->textarea.value;
111 int area_xsize = gi->textarea.xsize;
112 int area_ysize = gi->textarea.ysize;
113 int cursor_position = gi->textarea.cursor_position;
114 int cursor_x = gi->textarea.cursor_x;
115 int cursor_y = gi->textarea.cursor_y;
122 if (set_cursor_pos) /* x/y => position */
124 if (y == cursor_y && (x == cursor_x || (x < cursor_x && *text == '\n')))
127 else /* position => x/y */
129 if (pos == cursor_position)
133 if (x + 1 >= area_xsize || *text == '\n')
135 if (y + 1 >= area_ysize)
148 gi->textarea.cursor_x = x;
149 gi->textarea.cursor_y = y;
150 gi->textarea.cursor_x_preferred = x;
151 gi->textarea.cursor_position = pos;
154 static void setTextAreaCursorXY(struct GadgetInfo *gi, int x, int y)
156 gi->textarea.cursor_x = x;
157 gi->textarea.cursor_y = y;
159 setTextAreaCursorExt(gi, TRUE);
162 static void setTextAreaCursorPosition(struct GadgetInfo *gi, int pos)
164 gi->textarea.cursor_position = pos;
166 setTextAreaCursorExt(gi, FALSE);
169 static void default_callback_info(void *ptr)
174 static void default_callback_action(void *ptr)
179 static void DrawGadget(struct GadgetInfo *gi, boolean pressed, boolean direct)
181 int state = (pressed ? GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
182 struct GadgetDesign *gd = (!gi->active ? &gi->alt_design[state] :
183 gi->checked ? &gi->alt_design[state] :
185 boolean redraw_selectbox = FALSE;
189 case GD_TYPE_NORMAL_BUTTON:
190 case GD_TYPE_CHECK_BUTTON:
191 case GD_TYPE_RADIO_BUTTON:
192 BlitBitmapOnBackground(gd->bitmap, drawto,
193 gd->x, gd->y, gi->width, gi->height,
195 if (gi->deco.design.bitmap)
196 BlitBitmap(gi->deco.design.bitmap, drawto,
197 gi->deco.design.x, gi->deco.design.y,
198 gi->deco.width, gi->deco.height,
199 gi->x + gi->deco.x + (pressed ? gi->deco.xshift : 0),
200 gi->y + gi->deco.y + (pressed ? gi->deco.yshift : 0));
203 case GD_TYPE_TEXT_BUTTON:
206 int font_nr = (gi->active ? gi->font_active : gi->font);
207 int font_width = getFontWidth(font_nr);
208 int border_x = gi->border.xsize;
209 int border_y = gi->border.ysize;
210 int text_size = strlen(gi->textbutton.value);
211 int text_start = (gi->width - text_size * font_width) / 2;
213 /* left part of gadget */
214 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
215 border_x, gi->height, gi->x, gi->y);
217 /* middle part of gadget */
218 for (i=0; i < gi->textbutton.size; i++)
219 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
220 font_width, gi->height,
221 gi->x + border_x + i * font_width, gi->y);
223 /* right part of gadget */
224 BlitBitmapOnBackground(gd->bitmap, drawto,
225 gd->x + gi->border.width - border_x, gd->y,
226 border_x, gi->height,
227 gi->x + gi->width - border_x, gi->y);
229 /* gadget text value */
231 gi->x + text_start + (pressed ? gi->deco.xshift : 0),
232 gi->y + border_y + (pressed ? gi->deco.yshift : 0),
233 gi->textbutton.value, font_nr, BLIT_MASKED);
237 case GD_TYPE_TEXT_INPUT_ALPHANUMERIC:
238 case GD_TYPE_TEXT_INPUT_NUMERIC:
242 char cursor_string[2];
243 char text[MAX_GADGET_TEXTSIZE + 1];
244 int font_nr = (pressed ? gi->font_active : gi->font);
245 int font_width = getFontWidth(font_nr);
246 int border_x = gi->border.xsize;
247 int border_y = gi->border.ysize;
249 /* left part of gadget */
250 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
251 border_x, gi->height, gi->x, gi->y);
253 /* middle part of gadget */
254 for (i=0; i < gi->textinput.size + 1; i++)
255 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
256 font_width, gi->height,
257 gi->x + border_x + i * font_width, gi->y);
259 /* right part of gadget */
260 BlitBitmapOnBackground(gd->bitmap, drawto,
261 gd->x + gi->border.width - border_x, gd->y,
262 border_x, gi->height,
263 gi->x + gi->width - border_x, gi->y);
266 strcpy(text, gi->textinput.value);
269 /* gadget text value */
271 gi->x + border_x, gi->y + border_y, text,
272 font_nr, BLIT_MASKED);
274 cursor_letter = gi->textinput.value[gi->textinput.cursor_position];
275 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
276 cursor_string[1] = '\0';
278 /* draw cursor, if active */
282 gi->textinput.cursor_position * font_width,
283 gi->y + border_y, cursor_string,
284 font_nr, BLIT_INVERSE);
288 case GD_TYPE_TEXT_AREA:
292 char cursor_string[2];
293 int font_nr = (pressed ? gi->font_active : gi->font);
294 int font_width = getFontWidth(font_nr);
295 int font_height = getFontHeight(font_nr);
296 int border_x = gi->border.xsize;
297 int border_y = gi->border.ysize;
298 int gd_height = 2 * border_y + font_height;
300 /* top left part of gadget border */
301 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
302 border_x, border_y, gi->x, gi->y);
304 /* top middle part of gadget border */
305 for (i=0; i < gi->textarea.xsize; i++)
306 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
307 font_width, border_y,
308 gi->x + border_x + i * font_width, gi->y);
310 /* top right part of gadget border */
311 BlitBitmapOnBackground(gd->bitmap, drawto,
312 gd->x + gi->border.width - border_x, gd->y,
314 gi->x + gi->width - border_x, gi->y);
316 /* left and right part of gadget border for each row */
317 for (i=0; i < gi->textarea.ysize; i++)
319 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
320 border_x, font_height,
321 gi->x, gi->y + border_y + i * font_height);
322 BlitBitmapOnBackground(gd->bitmap, drawto,
323 gd->x + gi->border.width - border_x,
325 border_x, font_height,
326 gi->x + gi->width - border_x,
327 gi->y + border_y + i * font_height);
330 /* bottom left part of gadget border */
331 BlitBitmapOnBackground(gd->bitmap, drawto,
332 gd->x, gd->y + gd_height - border_y,
334 gi->x, gi->y + gi->height - border_y);
336 /* bottom middle part of gadget border */
337 for (i=0; i < gi->textarea.xsize; i++)
338 BlitBitmapOnBackground(gd->bitmap, drawto,
340 gd->y + gd_height - border_y,
341 font_width, border_y,
342 gi->x + border_x + i * font_width,
343 gi->y + gi->height - border_y);
345 /* bottom right part of gadget border */
346 BlitBitmapOnBackground(gd->bitmap, drawto,
347 gd->x + gi->border.width - border_x,
348 gd->y + gd_height - border_y,
350 gi->x + gi->width - border_x,
351 gi->y + gi->height - border_y);
353 ClearRectangleOnBackground(drawto,
356 gi->width - 2 * border_x,
357 gi->height - 2 * border_y);
359 /* gadget text value */
360 DrawTextToTextArea(gi->x + border_x, gi->y + border_y,
361 gi->textarea.value, font_nr, gi->textarea.xsize,
362 gi->textarea.xsize, gi->textarea.ysize,
365 cursor_letter = gi->textarea.value[gi->textarea.cursor_position];
366 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
367 cursor_string[1] = '\0';
369 /* draw cursor, if active */
372 gi->x + border_x + gi->textarea.cursor_x * font_width,
373 gi->y + border_y + gi->textarea.cursor_y * font_height,
375 font_nr, BLIT_INVERSE);
379 case GD_TYPE_SELECTBOX:
382 char text[MAX_GADGET_TEXTSIZE + 1];
383 int font_nr = (pressed ? gi->font_active : gi->font);
384 int font_width = getFontWidth(font_nr);
385 int font_height = getFontHeight(font_nr);
386 int border_x = gi->border.xsize;
387 int border_y = gi->border.ysize;
388 int button = gi->border.xsize_selectbutton;
389 int width_inner = gi->border.width - button - 2 * border_x;
390 int box_width = gi->selectbox.width;
391 int box_height = gi->selectbox.height;
393 /* left part of gadget */
394 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
395 border_x, gi->height, gi->x, gi->y);
397 /* middle part of gadget */
398 for (i=0; i < gi->selectbox.size; i++)
399 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
400 font_width, gi->height,
401 gi->x + border_x + i * font_width, gi->y);
403 /* button part of gadget */
404 BlitBitmapOnBackground(gd->bitmap, drawto,
405 gd->x + border_x + width_inner, gd->y,
407 gi->x + gi->width - border_x - button, gi->y);
409 /* right part of gadget */
410 BlitBitmapOnBackground(gd->bitmap, drawto,
411 gd->x + gi->border.width - border_x, gd->y,
412 border_x, gi->height,
413 gi->x + gi->width - border_x, gi->y);
416 strncpy(text, gi->selectbox.options[gi->selectbox.index].text,
418 text[gi->selectbox.size] = '\0';
420 /* gadget text value */
421 DrawTextExt(drawto, gi->x + border_x, gi->y + border_y, text,
422 font_nr, BLIT_MASKED);
426 if (!gi->selectbox.open)
428 gi->selectbox.open = TRUE;
429 gi->selectbox.stay_open = FALSE;
430 gi->selectbox.current_index = gi->selectbox.index;
432 /* save background under selectbox */
433 BlitBitmap(drawto, gfx.field_save_buffer,
434 gi->selectbox.x, gi->selectbox.y,
435 gi->selectbox.width, gi->selectbox.height,
436 gi->selectbox.x, gi->selectbox.y);
439 /* draw open selectbox */
441 /* top left part of gadget border */
442 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
444 gi->selectbox.x, gi->selectbox.y);
446 /* top middle part of gadget border */
447 for (i=0; i < gi->selectbox.size; i++)
448 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
449 font_width, border_y,
450 gi->selectbox.x + border_x + i * font_width,
453 /* top button part of gadget border */
454 BlitBitmapOnBackground(gd->bitmap, drawto,
455 gd->x + border_x + width_inner, gd->y,
457 gi->selectbox.x + box_width -border_x -button,
460 /* top right part of gadget border */
461 BlitBitmapOnBackground(gd->bitmap, drawto,
462 gd->x + gi->border.width - border_x, gd->y,
464 gi->selectbox.x + box_width - border_x,
467 /* left and right part of gadget border for each row */
468 for (i=0; i < gi->selectbox.num_values; i++)
470 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
471 border_x, font_height,
473 gi->selectbox.y + border_y + i*font_height);
474 BlitBitmapOnBackground(gd->bitmap, drawto,
475 gd->x + gi->border.width - border_x,
477 border_x, font_height,
478 gi->selectbox.x + box_width - border_x,
479 gi->selectbox.y + border_y + i*font_height);
482 /* bottom left part of gadget border */
483 BlitBitmapOnBackground(gd->bitmap, drawto,
484 gd->x, gd->y + gi->height - border_y,
487 gi->selectbox.y + box_height - border_y);
489 /* bottom middle part of gadget border */
490 for (i=0; i < gi->selectbox.size; i++)
491 BlitBitmapOnBackground(gd->bitmap, drawto,
493 gd->y + gi->height - border_y,
494 font_width, border_y,
495 gi->selectbox.x + border_x + i * font_width,
496 gi->selectbox.y + box_height - border_y);
498 /* bottom button part of gadget border */
499 BlitBitmapOnBackground(gd->bitmap, drawto,
500 gd->x + border_x + width_inner,
501 gd->y + gi->height - border_y,
503 gi->selectbox.x + box_width -border_x -button,
504 gi->selectbox.y + box_height - border_y);
506 /* bottom right part of gadget border */
507 BlitBitmapOnBackground(gd->bitmap, drawto,
508 gd->x + gi->border.width - border_x,
509 gd->y + gi->height - border_y,
511 gi->selectbox.x + box_width - border_x,
512 gi->selectbox.y + box_height - border_y);
514 ClearRectangleOnBackground(drawto,
515 gi->selectbox.x + border_x,
516 gi->selectbox.y + border_y,
517 gi->selectbox.width - 2 * border_x,
518 gi->selectbox.height - 2 * border_y);
520 /* selectbox text values */
521 for (i=0; i < gi->selectbox.num_values; i++)
523 int mask_mode = BLIT_MASKED;
525 strncpy(text, gi->selectbox.options[i].text, gi->selectbox.size);
526 text[gi->selectbox.size] = '\0';
528 if (i == gi->selectbox.current_index)
530 FillRectangle(drawto,
531 gi->selectbox.x + border_x,
532 gi->selectbox.y + border_y + i * font_height,
533 gi->selectbox.width - 2 * border_x, font_height,
534 gi->selectbox.inverse_color);
536 /* prevent use of cursor graphic by drawing at least two chars */
538 text[gi->selectbox.size] = '\0';
540 mask_mode = BLIT_INVERSE;
544 gi->selectbox.x + border_x,
545 gi->selectbox.y + border_y + i * font_height, text,
549 redraw_selectbox = TRUE;
551 else if (gi->selectbox.open)
553 gi->selectbox.open = FALSE;
555 /* redraw closed selectbox */
556 DrawGadget(gi, FALSE, FALSE);
558 /* restore background under selectbox */
559 BlitBitmap(gfx.field_save_buffer, drawto,
560 gi->selectbox.x, gi->selectbox.y,
561 gi->selectbox.width, gi->selectbox.height,
562 gi->selectbox.x, gi->selectbox.y);
564 redraw_selectbox = TRUE;
569 case GD_TYPE_SCROLLBAR_VERTICAL:
573 int ypos = gi->y + gi->scrollbar.position;
574 int design_full = gi->width;
575 int design_body = design_full - 2 * gi->border.ysize;
576 int size_full = gi->scrollbar.size;
577 int size_body = size_full - 2 * gi->border.ysize;
578 int num_steps = size_body / design_body;
579 int step_size_remain = size_body - num_steps * design_body;
581 /* clear scrollbar area */
582 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
583 gi->width, gi->height);
585 /* upper part of gadget */
586 BlitBitmapOnBackground(gd->bitmap, drawto,
588 gi->width, gi->border.ysize,
591 /* middle part of gadget */
592 for (i=0; i < num_steps; i++)
593 BlitBitmapOnBackground(gd->bitmap, drawto,
594 gd->x, gd->y + gi->border.ysize,
595 gi->width, design_body,
597 ypos + gi->border.ysize + i * design_body);
599 /* remaining middle part of gadget */
600 if (step_size_remain > 0)
601 BlitBitmapOnBackground(gd->bitmap, drawto,
602 gd->x, gd->y + gi->border.ysize,
603 gi->width, step_size_remain,
605 ypos + gi->border.ysize
606 + num_steps * design_body);
608 /* lower part of gadget */
609 BlitBitmapOnBackground(gd->bitmap, drawto,
610 gd->x, gd->y + design_full - gi->border.ysize,
611 gi->width, gi->border.ysize,
612 xpos, ypos + size_full - gi->border.ysize);
616 case GD_TYPE_SCROLLBAR_HORIZONTAL:
619 int xpos = gi->x + gi->scrollbar.position;
621 int design_full = gi->height;
622 int design_body = design_full - 2 * gi->border.xsize;
623 int size_full = gi->scrollbar.size;
624 int size_body = size_full - 2 * gi->border.xsize;
625 int num_steps = size_body / design_body;
626 int step_size_remain = size_body - num_steps * design_body;
628 /* clear scrollbar area */
629 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
630 gi->width, gi->height);
632 /* left part of gadget */
633 BlitBitmapOnBackground(gd->bitmap, drawto,
635 gi->border.xsize, gi->height,
638 /* middle part of gadget */
639 for (i=0; i < num_steps; i++)
640 BlitBitmapOnBackground(gd->bitmap, drawto,
641 gd->x + gi->border.xsize, gd->y,
642 design_body, gi->height,
643 xpos + gi->border.xsize + i * design_body,
646 /* remaining middle part of gadget */
647 if (step_size_remain > 0)
648 BlitBitmapOnBackground(gd->bitmap, drawto,
649 gd->x + gi->border.xsize, gd->y,
650 step_size_remain, gi->height,
651 xpos + gi->border.xsize
652 + num_steps * design_body,
655 /* right part of gadget */
656 BlitBitmapOnBackground(gd->bitmap, drawto,
657 gd->x + design_full - gi->border.xsize, gd->y,
658 gi->border.xsize, gi->height,
659 xpos + size_full - gi->border.xsize, ypos);
669 BlitBitmap(drawto, window,
670 gi->x, gi->y, gi->width, gi->height, gi->x, gi->y);
672 if (gi->type == GD_TYPE_SELECTBOX && redraw_selectbox)
673 BlitBitmap(drawto, window,
674 gi->selectbox.x, gi->selectbox.y,
675 gi->selectbox.width, gi->selectbox.height,
676 gi->selectbox.x, gi->selectbox.y);
679 redraw_mask |= (gi->x < gfx.sx + gfx.sxsize ? REDRAW_FIELD :
680 gi->y < gfx.dy + gfx.dysize ? REDRAW_DOOR_1 :
681 gi->y > gfx.vy ? REDRAW_DOOR_2 : REDRAW_DOOR_3);
684 static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
688 while (tag != GDI_END)
693 gi->custom_id = va_arg(ap, int);
696 case GDI_CUSTOM_TYPE_ID:
697 gi->custom_type_id = va_arg(ap, int);
702 int max_textsize = MAX_INFO_TEXTSIZE - 1;
703 char *text = va_arg(ap, char *);
706 strncpy(gi->info_text, text, max_textsize);
710 gi->info_text[max_textsize] = '\0';
715 gi->x = va_arg(ap, int);
719 gi->y = va_arg(ap, int);
723 gi->width = va_arg(ap, int);
727 gi->height = va_arg(ap, int);
731 gi->type = va_arg(ap, unsigned long);
735 gi->state = va_arg(ap, unsigned long);
739 /* take care here: "boolean" is typedef'ed as "unsigned char",
740 which gets promoted to "int" */
741 gi->active = (boolean)va_arg(ap, int);
744 case GDI_DIRECT_DRAW:
745 /* take care here: "boolean" is typedef'ed as "unsigned char",
746 which gets promoted to "int" */
747 gi->direct_draw = (boolean)va_arg(ap, int);
751 /* take care here: "boolean" is typedef'ed as "unsigned char",
752 which gets promoted to "int" */
753 gi->checked = (boolean)va_arg(ap, int);
757 gi->radio_nr = va_arg(ap, unsigned long);
760 case GDI_NUMBER_VALUE:
761 gi->textinput.number_value = va_arg(ap, long);
762 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
763 gi->textinput.cursor_position = strlen(gi->textinput.value);
767 gi->textinput.number_min = va_arg(ap, long);
768 if (gi->textinput.number_value < gi->textinput.number_min)
770 gi->textinput.number_value = gi->textinput.number_min;
771 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
776 gi->textinput.number_max = va_arg(ap, long);
777 if (gi->textinput.number_value > gi->textinput.number_max)
779 gi->textinput.number_value = gi->textinput.number_max;
780 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
786 int max_textsize = MAX_GADGET_TEXTSIZE;
788 if (gi->textinput.size)
789 max_textsize = MIN(gi->textinput.size, MAX_GADGET_TEXTSIZE - 1);
791 strncpy(gi->textinput.value, va_arg(ap, char *), max_textsize);
792 gi->textinput.value[max_textsize] = '\0';
793 gi->textinput.cursor_position = strlen(gi->textinput.value);
795 /* same tag also used for other gadget definitions */
796 strcpy(gi->textbutton.value, gi->textinput.value);
797 strcpy(gi->textarea.value, gi->textinput.value);
803 int tag_value = va_arg(ap, int);
804 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE - 1);
806 gi->textinput.size = max_textsize;
807 gi->textinput.value[max_textsize] = '\0';
809 /* same tag also used for other gadget definitions */
810 strcpy(gi->textbutton.value, gi->textinput.value);
811 gi->textbutton.size = gi->textinput.size;
812 gi->selectbox.size = gi->textinput.size;
817 gi->font = va_arg(ap, int);
818 if (gi->font_active == 0)
819 gi->font_active = gi->font;
822 case GDI_TEXT_FONT_ACTIVE:
823 gi->font_active = va_arg(ap, int);
826 case GDI_SELECTBOX_OPTIONS:
827 gi->selectbox.options = va_arg(ap, struct ValueTextInfo *);
830 case GDI_SELECTBOX_INDEX:
831 gi->selectbox.index = va_arg(ap, int);
834 case GDI_DESIGN_UNPRESSED:
835 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
836 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
837 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
840 case GDI_DESIGN_PRESSED:
841 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
842 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
843 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
846 case GDI_ALT_DESIGN_UNPRESSED:
847 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
848 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
849 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
852 case GDI_ALT_DESIGN_PRESSED:
853 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
854 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
855 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
858 case GDI_BORDER_SIZE:
859 gi->border.xsize = va_arg(ap, int);
860 gi->border.ysize = va_arg(ap, int);
863 case GDI_BORDER_SIZE_SELECTBUTTON:
864 gi->border.xsize_selectbutton = va_arg(ap, int);
867 case GDI_DESIGN_WIDTH:
868 gi->border.width = va_arg(ap, int);
871 case GDI_DECORATION_DESIGN:
872 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
873 gi->deco.design.x = va_arg(ap, int);
874 gi->deco.design.y = va_arg(ap, int);
877 case GDI_DECORATION_POSITION:
878 gi->deco.x = va_arg(ap, int);
879 gi->deco.y = va_arg(ap, int);
882 case GDI_DECORATION_SIZE:
883 gi->deco.width = va_arg(ap, int);
884 gi->deco.height = va_arg(ap, int);
887 case GDI_DECORATION_SHIFTING:
888 gi->deco.xshift = va_arg(ap, int);
889 gi->deco.yshift = va_arg(ap, int);
893 gi->event_mask = va_arg(ap, unsigned long);
897 gi->drawing.area_xsize = va_arg(ap, int);
898 gi->drawing.area_ysize = va_arg(ap, int);
900 /* determine dependent values for drawing area gadget, if needed */
901 if (gi->width == 0 && gi->height == 0 &&
902 gi->drawing.item_xsize !=0 && gi->drawing.item_ysize !=0)
904 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
905 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
907 else if (gi->drawing.item_xsize == 0 && gi->drawing.item_ysize == 0 &&
908 gi->width != 0 && gi->height != 0)
910 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
911 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
914 /* same tag also used for other gadget definitions */
915 gi->textarea.xsize = gi->drawing.area_xsize;
916 gi->textarea.ysize = gi->drawing.area_ysize;
918 if (gi->type & GD_TYPE_TEXT_AREA) /* force recalculation */
927 gi->drawing.item_xsize = va_arg(ap, int);
928 gi->drawing.item_ysize = va_arg(ap, int);
930 /* determine dependent values for drawing area gadget, if needed */
931 if (gi->width == 0 && gi->height == 0 &&
932 gi->drawing.area_xsize !=0 && gi->drawing.area_ysize !=0)
934 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
935 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
937 else if (gi->drawing.area_xsize == 0 && gi->drawing.area_ysize == 0 &&
938 gi->width != 0 && gi->height != 0)
940 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
941 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
945 case GDI_SCROLLBAR_ITEMS_MAX:
946 gi->scrollbar.items_max = va_arg(ap, int);
949 case GDI_SCROLLBAR_ITEMS_VISIBLE:
950 gi->scrollbar.items_visible = va_arg(ap, int);
953 case GDI_SCROLLBAR_ITEM_POSITION:
954 gi->scrollbar.item_position = va_arg(ap, int);
957 case GDI_CALLBACK_INFO:
958 gi->callback_info = va_arg(ap, gadget_function);
961 case GDI_CALLBACK_ACTION:
962 gi->callback_action = va_arg(ap, gadget_function);
966 Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
969 tag = va_arg(ap, int); /* read next tag */
972 /* check if gadget is complete */
973 if (gi->type != GD_TYPE_DRAWING_AREA &&
974 (!gi->design[GD_BUTTON_UNPRESSED].bitmap ||
975 !gi->design[GD_BUTTON_PRESSED].bitmap))
976 Error(ERR_EXIT, "gadget incomplete (missing Bitmap)");
978 /* adjust gadget values in relation to other gadget values */
980 if (gi->type & GD_TYPE_TEXT_INPUT)
982 int font_nr = gi->font_active;
983 int font_width = getFontWidth(font_nr);
984 int font_height = getFontHeight(font_nr);
985 int border_xsize = gi->border.xsize;
986 int border_ysize = gi->border.ysize;
988 gi->width = 2 * border_xsize + (gi->textinput.size + 1) * font_width;
989 gi->height = 2 * border_ysize + font_height;
992 if (gi->type & GD_TYPE_SELECTBOX)
994 int font_nr = gi->font_active;
995 int font_width = getFontWidth(font_nr);
996 int font_height = getFontHeight(font_nr);
997 int border_xsize = gi->border.xsize;
998 int border_ysize = gi->border.ysize;
999 int button_size = gi->border.xsize_selectbutton;
1000 int bottom_screen_border = gfx.sy + gfx.sysize - font_height;
1004 gi->width = 2 * border_xsize + gi->textinput.size*font_width +button_size;
1005 gi->height = 2 * border_ysize + font_height;
1007 if (gi->selectbox.options == NULL)
1008 Error(ERR_EXIT, "selectbox gadget incomplete (missing options array)");
1010 gi->selectbox.num_values = 0;
1011 while (gi->selectbox.options[gi->selectbox.num_values].text != NULL)
1012 gi->selectbox.num_values++;
1014 /* calculate values for open selectbox */
1015 gi->selectbox.width = gi->width;
1016 gi->selectbox.height =
1017 2 * border_ysize + gi->selectbox.num_values * font_height;
1019 gi->selectbox.x = gi->x;
1020 gi->selectbox.y = gi->y + gi->height;
1021 if (gi->selectbox.y + gi->selectbox.height > bottom_screen_border)
1022 gi->selectbox.y = gi->y - gi->selectbox.height;
1023 if (gi->selectbox.y < 0)
1024 gi->selectbox.y = bottom_screen_border - gi->selectbox.height;
1026 getFontCharSource(font_nr, FONT_ASCII_CURSOR, &src_bitmap, &src_x, &src_y);
1027 src_x += font_width / 2;
1028 src_y += font_height / 2;
1029 gi->selectbox.inverse_color = GetPixel(src_bitmap, src_x, src_y);
1031 /* always start with closed selectbox */
1032 gi->selectbox.open = FALSE;
1035 if (gi->type & GD_TYPE_TEXT_INPUT_NUMERIC)
1037 struct GadgetTextInput *text = &gi->textinput;
1038 int value = text->number_value;
1040 text->number_value = (value < text->number_min ? text->number_min :
1041 value > text->number_max ? text->number_max :
1044 sprintf(text->value, "%d", text->number_value);
1047 if (gi->type & GD_TYPE_TEXT_BUTTON)
1049 int font_nr = gi->font_active;
1050 int font_width = getFontWidth(font_nr);
1051 int font_height = getFontHeight(font_nr);
1052 int border_xsize = gi->border.xsize;
1053 int border_ysize = gi->border.ysize;
1055 gi->width = 2 * border_xsize + gi->textbutton.size * font_width;
1056 gi->height = 2 * border_ysize + font_height;
1059 if (gi->type & GD_TYPE_SCROLLBAR)
1061 struct GadgetScrollbar *gs = &gi->scrollbar;
1063 if (gi->width == 0 || gi->height == 0 ||
1064 gs->items_max == 0 || gs->items_visible == 0)
1065 Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
1067 /* calculate internal scrollbar values */
1068 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1069 gi->height : gi->width);
1070 gs->size = gs->size_max * gs->items_visible / gs->items_max;
1071 gs->position = gs->size_max * gs->item_position / gs->items_max;
1072 gs->position_max = gs->size_max - gs->size;
1073 gs->correction = gs->size_max / gs->items_max / 2;
1075 /* finetuning for maximal right/bottom position */
1076 if (gs->item_position == gs->items_max - gs->items_visible)
1077 gs->position = gs->position_max;
1080 if (gi->type & GD_TYPE_TEXT_AREA)
1082 int font_nr = gi->font_active;
1083 int font_width = getFontWidth(font_nr);
1084 int font_height = getFontHeight(font_nr);
1085 int border_xsize = gi->border.xsize;
1086 int border_ysize = gi->border.ysize;
1088 if (gi->width == 0 || gi->height == 0)
1090 gi->width = 2 * border_xsize + gi->textarea.xsize * font_width;
1091 gi->height = 2 * border_ysize + gi->textarea.ysize * font_height;
1095 gi->textarea.xsize = (gi->width - 2 * border_xsize) / font_width;
1096 gi->textarea.ysize = (gi->height - 2 * border_ysize) / font_height;
1101 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
1105 va_start(ap, first_tag);
1106 HandleGadgetTags(gi, first_tag, ap);
1112 void RedrawGadget(struct GadgetInfo *gi)
1115 DrawGadget(gi, gi->state, gi->direct_draw);
1118 struct GadgetInfo *CreateGadget(int first_tag, ...)
1120 struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
1123 /* always start with reliable default values */
1124 new_gadget->id = getNewGadgetID();
1125 new_gadget->callback_info = default_callback_info;
1126 new_gadget->callback_action = default_callback_action;
1127 new_gadget->active = TRUE;
1128 new_gadget->direct_draw = TRUE;
1130 new_gadget->next = NULL;
1132 va_start(ap, first_tag);
1133 HandleGadgetTags(new_gadget, first_tag, ap);
1136 /* insert new gadget into global gadget list */
1137 if (gadget_list_last_entry)
1139 gadget_list_last_entry->next = new_gadget;
1140 gadget_list_last_entry = gadget_list_last_entry->next;
1143 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
1148 void FreeGadget(struct GadgetInfo *gi)
1150 struct GadgetInfo *gi_previous = gadget_list_first_entry;
1152 while (gi_previous != NULL && gi_previous->next != gi)
1153 gi_previous = gi_previous->next;
1155 if (gi == gadget_list_first_entry)
1156 gadget_list_first_entry = gi->next;
1158 if (gi == gadget_list_last_entry)
1159 gadget_list_last_entry = gi_previous;
1161 if (gi_previous != NULL)
1162 gi_previous->next = gi->next;
1167 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
1169 if (gi->type != GD_TYPE_TEXT_INPUT_NUMERIC)
1172 gi->textinput.number_value = atoi(gi->textinput.value);
1174 if (gi->textinput.number_value < gi->textinput.number_min)
1175 gi->textinput.number_value = gi->textinput.number_min;
1176 if (gi->textinput.number_value > gi->textinput.number_max)
1177 gi->textinput.number_value = gi->textinput.number_max;
1179 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
1181 if (gi->textinput.cursor_position < 0)
1182 gi->textinput.cursor_position = 0;
1183 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1184 gi->textinput.cursor_position = strlen(gi->textinput.value);
1187 /* global pointer to gadget actually in use (when mouse button pressed) */
1188 static struct GadgetInfo *last_gi = NULL;
1190 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
1192 if (gi == NULL || gi->mapped)
1198 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
1201 void MapGadget(struct GadgetInfo *gi)
1203 MapGadgetExt(gi, TRUE);
1206 void UnmapGadget(struct GadgetInfo *gi)
1208 if (gi == NULL || !gi->mapped)
1217 #define MAX_NUM_GADGETS 1024
1218 #define MULTIMAP_UNMAP (1 << 0)
1219 #define MULTIMAP_REMAP (1 << 1)
1220 #define MULTIMAP_REDRAW (1 << 2)
1221 #define MULTIMAP_PLAYFIELD (1 << 3)
1222 #define MULTIMAP_DOOR_1 (1 << 4)
1223 #define MULTIMAP_DOOR_2 (1 << 5)
1224 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
1228 static void MultiMapGadgets(int mode)
1230 struct GadgetInfo *gi = gadget_list_first_entry;
1231 static boolean map_state[MAX_NUM_GADGETS];
1236 if ((mode & MULTIMAP_PLAYFIELD &&
1237 gi->x < gfx.sx + gfx.sxsize) ||
1238 (mode & MULTIMAP_DOOR_1 &&
1239 gi->x >= gfx.dx && gi->y < gfx.dy + gfx.dysize) ||
1240 (mode & MULTIMAP_DOOR_2 &&
1241 gi->x >= gfx.dx && gi->y > gfx.dy + gfx.dysize) ||
1242 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
1244 if (mode & MULTIMAP_UNMAP)
1246 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
1251 if (map_state[map_count++ % MAX_NUM_GADGETS])
1252 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
1260 void UnmapAllGadgets()
1262 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
1265 void RemapAllGadgets()
1267 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
1270 static boolean anyTextInputGadgetActive()
1272 return (last_gi && (last_gi->type & GD_TYPE_TEXT_INPUT) && last_gi->mapped);
1275 static boolean anyTextAreaGadgetActive()
1277 return (last_gi && (last_gi->type & GD_TYPE_TEXT_AREA) && last_gi->mapped);
1280 static boolean anySelectboxGadgetActive()
1282 return (last_gi && (last_gi->type & GD_TYPE_SELECTBOX) && last_gi->mapped);
1285 boolean anyTextGadgetActive()
1287 return (anyTextInputGadgetActive() ||
1288 anyTextAreaGadgetActive() ||
1289 anySelectboxGadgetActive());
1292 void ClickOnGadget(struct GadgetInfo *gi, int button)
1294 /* simulate releasing mouse button over last gadget, if still pressed */
1296 HandleGadgets(-1, -1, 0);
1298 /* simulate pressing mouse button over specified gadget */
1299 HandleGadgets(gi->x, gi->y, button);
1301 /* simulate releasing mouse button over specified gadget */
1302 HandleGadgets(gi->x, gi->y, 0);
1305 boolean HandleGadgets(int mx, int my, int button)
1307 static struct GadgetInfo *last_info_gi = NULL;
1308 static unsigned long pressed_delay = 0;
1309 static int last_button = 0;
1310 static int last_mx = 0, last_my = 0;
1311 int scrollbar_mouse_pos = 0;
1312 struct GadgetInfo *new_gi, *gi;
1313 boolean press_event;
1314 boolean release_event;
1315 boolean mouse_moving;
1316 boolean gadget_pressed;
1317 boolean gadget_pressed_repeated;
1318 boolean gadget_moving;
1319 boolean gadget_moving_inside;
1320 boolean gadget_moving_off_borders;
1321 boolean gadget_released;
1322 boolean gadget_released_inside;
1323 boolean gadget_released_inside_select_line;
1324 boolean gadget_released_inside_select_area;
1325 boolean gadget_released_off_borders;
1326 boolean changed_position = FALSE;
1328 /* check if there are any gadgets defined */
1329 if (gadget_list_first_entry == NULL)
1332 /* simulated release of mouse button over last gadget */
1333 if (mx == -1 && my == -1 && button == 0)
1339 /* check which gadget is under the mouse pointer */
1340 new_gi = getGadgetInfoFromMousePosition(mx, my);
1342 /* check if button state has changed since last invocation */
1343 press_event = (button != 0 && last_button == 0);
1344 release_event = (button == 0 && last_button != 0);
1345 last_button = button;
1347 /* check if mouse has been moved since last invocation */
1348 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
1352 /* if mouse button pressed outside text or selectbox gadget, deactivate it */
1353 if (anyTextGadgetActive() &&
1354 button != 0 && !motion_status && new_gi != last_gi)
1356 CheckRangeOfNumericInputGadget(last_gi); /* in case of numeric gadget */
1358 DrawGadget(last_gi, DG_UNPRESSED, last_gi->direct_draw);
1360 last_gi->event.type = GD_EVENT_TEXT_LEAVING;
1362 if (last_gi->event_mask & GD_EVENT_TEXT_LEAVING)
1363 last_gi->callback_action(last_gi);
1369 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
1370 gadget_pressed_repeated =
1371 (button != 0 && last_gi != NULL && new_gi == last_gi);
1373 gadget_released = (release_event && last_gi != NULL);
1374 gadget_released_inside = (gadget_released && new_gi == last_gi);
1375 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
1377 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
1378 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
1379 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
1381 /* when handling selectbox, set additional state values */
1382 if (gadget_released_inside && (last_gi->type & GD_TYPE_SELECTBOX))
1384 struct GadgetInfo *gi = last_gi;
1386 gadget_released_inside_select_line =
1387 (mx >= gi->x && mx < gi->x + gi->width &&
1388 my >= gi->y && my < gi->y + gi->height);
1389 gadget_released_inside_select_area =
1390 (mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
1391 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height);
1395 gadget_released_inside_select_line = FALSE;
1396 gadget_released_inside_select_area = FALSE;
1399 /* if new gadget pressed, store this gadget */
1403 /* 'gi' is actually handled gadget */
1406 /* if gadget is scrollbar, choose mouse position value */
1407 if (gi && gi->type & GD_TYPE_SCROLLBAR)
1408 scrollbar_mouse_pos =
1409 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
1411 /* if mouse button released, no gadget needs to be handled anymore */
1412 if (gadget_released)
1414 if (last_gi->type & GD_TYPE_SELECTBOX &&
1415 (gadget_released_inside_select_line ||
1416 gadget_released_off_borders)) /* selectbox stays open */
1417 gi->selectbox.stay_open = TRUE;
1418 else if (!(last_gi->type & GD_TYPE_TEXT_INPUT ||
1419 last_gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1423 /* modify event position values even if no gadget is pressed */
1424 if (button == 0 && !release_event)
1429 int last_x = gi->event.x;
1430 int last_y = gi->event.y;
1432 gi->event.x = mx - gi->x;
1433 gi->event.y = my - gi->y;
1435 if (gi->type == GD_TYPE_DRAWING_AREA)
1437 gi->event.x /= gi->drawing.item_xsize;
1438 gi->event.y /= gi->drawing.item_ysize;
1440 if (last_x != gi->event.x || last_y != gi->event.y)
1441 changed_position = TRUE;
1443 else if (gi->type & GD_TYPE_TEXT_INPUT && button != 0 && !motion_status)
1445 int old_cursor_position = gi->textinput.cursor_position;
1447 /* if mouse button pressed inside activated text gadget, set cursor */
1448 gi->textinput.cursor_position =
1449 (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1451 if (gi->textinput.cursor_position < 0)
1452 gi->textinput.cursor_position = 0;
1453 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1454 gi->textinput.cursor_position = strlen(gi->textinput.value);
1456 if (gi->textinput.cursor_position != old_cursor_position)
1457 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1459 else if (gi->type & GD_TYPE_TEXT_AREA && button != 0 && !motion_status)
1461 int old_cursor_position = gi->textarea.cursor_position;
1462 int x = (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1463 int y = (my - gi->y - gi->border.ysize) / getFontHeight(gi->font);
1465 x = (x < 0 ? 0 : x >= gi->textarea.xsize ? gi->textarea.xsize - 1 : x);
1466 y = (y < 0 ? 0 : y >= gi->textarea.ysize ? gi->textarea.ysize - 1 : y);
1468 setTextAreaCursorXY(gi, x, y);
1470 if (gi->textarea.cursor_position != old_cursor_position)
1471 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1473 else if (gi->type & GD_TYPE_SELECTBOX)
1475 int old_index = gi->selectbox.current_index;
1477 /* if mouse moving inside activated selectbox, select value */
1478 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1479 gi->selectbox.current_index =
1480 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1482 if (gi->selectbox.current_index < 0)
1483 gi->selectbox.current_index = 0;
1484 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1485 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1487 if (gi->selectbox.current_index != old_index)
1488 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1492 /* handle gadget popup info text */
1493 if (last_info_gi != new_gi ||
1494 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
1496 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
1498 new_gi->event.type = GD_EVENT_INFO_ENTERING;
1499 new_gi->callback_info(new_gi);
1501 else if (last_info_gi != NULL)
1503 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
1504 last_info_gi->callback_info(last_info_gi);
1507 last_info_gi = new_gi;
1512 if (gi->type == GD_TYPE_CHECK_BUTTON)
1514 gi->checked = !gi->checked;
1516 else if (gi->type == GD_TYPE_RADIO_BUTTON)
1518 struct GadgetInfo *rgi = gadget_list_first_entry;
1523 rgi->type == GD_TYPE_RADIO_BUTTON &&
1524 rgi->radio_nr == gi->radio_nr &&
1527 rgi->checked = FALSE;
1528 DrawGadget(rgi, DG_UNPRESSED, rgi->direct_draw);
1536 else if (gi->type & GD_TYPE_SCROLLBAR)
1540 if (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL)
1551 if (mpos >= gpos + gi->scrollbar.position &&
1552 mpos < gpos + gi->scrollbar.position + gi->scrollbar.size)
1554 /* drag scrollbar */
1555 gi->scrollbar.drag_position =
1556 scrollbar_mouse_pos - gi->scrollbar.position;
1560 /* click scrollbar one scrollbar length up/left or down/right */
1562 struct GadgetScrollbar *gs = &gi->scrollbar;
1563 int old_item_position = gs->item_position;
1565 changed_position = FALSE;
1567 gs->item_position +=
1568 gs->items_visible * (mpos < gpos + gi->scrollbar.position ? -1 : +1);
1570 if (gs->item_position < 0)
1571 gs->item_position = 0;
1572 if (gs->item_position > gs->items_max - gs->items_visible)
1573 gs->item_position = gs->items_max - gs->items_visible;
1575 if (old_item_position != gs->item_position)
1577 gi->event.item_position = gs->item_position;
1578 changed_position = TRUE;
1581 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
1584 gi->state = GD_BUTTON_UNPRESSED;
1585 gi->event.type = GD_EVENT_MOVING;
1586 gi->event.off_borders = FALSE;
1588 if (gi->event_mask & GD_EVENT_MOVING && changed_position)
1589 gi->callback_action(gi);
1591 /* don't handle this scrollbar anymore while mouse button pressed */
1598 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1600 gi->state = GD_BUTTON_PRESSED;
1601 gi->event.type = GD_EVENT_PRESSED;
1602 gi->event.button = button;
1603 gi->event.off_borders = FALSE;
1605 /* initialize delay counter */
1606 DelayReached(&pressed_delay, 0);
1608 if (gi->event_mask & GD_EVENT_PRESSED)
1609 gi->callback_action(gi);
1612 if (gadget_pressed_repeated)
1614 gi->event.type = GD_EVENT_PRESSED;
1616 if (gi->event_mask & GD_EVENT_REPEATED &&
1617 DelayReached(&pressed_delay, GADGET_FRAME_DELAY))
1618 gi->callback_action(gi);
1623 if (gi->type & GD_TYPE_BUTTON)
1625 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
1626 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1627 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
1628 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1630 else if (gi->type & GD_TYPE_SELECTBOX)
1632 int old_index = gi->selectbox.current_index;
1634 /* if mouse moving inside activated selectbox, select value */
1635 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1636 gi->selectbox.current_index =
1637 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1639 if (gi->selectbox.current_index < 0)
1640 gi->selectbox.current_index = 0;
1641 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1642 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1644 if (gi->selectbox.current_index != old_index)
1645 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1647 else if (gi->type & GD_TYPE_SCROLLBAR)
1649 struct GadgetScrollbar *gs = &gi->scrollbar;
1650 int old_item_position = gs->item_position;
1652 gs->position = scrollbar_mouse_pos - gs->drag_position;
1654 if (gs->position < 0)
1656 if (gs->position > gs->position_max)
1657 gs->position = gs->position_max;
1660 gs->items_max * (gs->position + gs->correction) / gs->size_max;
1662 if (gs->item_position < 0)
1663 gs->item_position = 0;
1664 if (gs->item_position > gs->items_max - 1)
1665 gs->item_position = gs->items_max - 1;
1667 if (old_item_position != gs->item_position)
1669 gi->event.item_position = gs->item_position;
1670 changed_position = TRUE;
1673 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1676 gi->state = (gadget_moving_inside || gi->type & GD_TYPE_SCROLLBAR ?
1677 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
1678 gi->event.type = GD_EVENT_MOVING;
1679 gi->event.off_borders = gadget_moving_off_borders;
1681 if (gi->event_mask & GD_EVENT_MOVING && changed_position &&
1682 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
1683 gi->callback_action(gi);
1686 if (gadget_released_inside)
1688 boolean deactivate_gadget = TRUE;
1690 if (gi->type & GD_TYPE_SELECTBOX)
1692 if (gadget_released_inside_select_line ||
1693 gadget_released_off_borders) /* selectbox stays open */
1694 deactivate_gadget = FALSE;
1696 gi->selectbox.index = gi->selectbox.current_index;
1699 if (deactivate_gadget &&
1700 !(gi->type & GD_TYPE_TEXT_INPUT ||
1701 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1702 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1704 gi->state = GD_BUTTON_UNPRESSED;
1705 gi->event.type = GD_EVENT_RELEASED;
1707 if ((gi->event_mask & GD_EVENT_RELEASED) && deactivate_gadget)
1708 gi->callback_action(gi);
1711 if (gadget_released_off_borders)
1713 if (gi->type & GD_TYPE_SCROLLBAR)
1714 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1716 gi->event.type = GD_EVENT_RELEASED;
1718 if (gi->event_mask & GD_EVENT_RELEASED &&
1719 gi->event_mask & GD_EVENT_OFF_BORDERS)
1720 gi->callback_action(gi);
1723 /* handle gadgets unmapped/mapped between pressing and releasing */
1724 if (release_event && !gadget_released && new_gi)
1725 new_gi->state = GD_BUTTON_UNPRESSED;
1727 return (gadget_pressed || gadget_pressed_repeated ||
1728 gadget_released || gadget_moving);
1731 static void insertCharIntoTextArea(struct GadgetInfo *gi, char c)
1733 char text[MAX_GADGET_TEXTSIZE];
1734 int cursor_position = gi->textarea.cursor_position;
1736 if (strlen(gi->textarea.value) == MAX_GADGET_TEXTSIZE) /* no space left */
1739 strcpy(text, gi->textarea.value);
1740 strcpy(&gi->textarea.value[cursor_position + 1], &text[cursor_position]);
1741 gi->textarea.value[cursor_position] = c;
1743 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
1746 boolean HandleGadgetsKeyInput(Key key)
1748 struct GadgetInfo *gi = last_gi;
1750 if (gi == NULL || !gi->mapped ||
1751 !(gi->type & GD_TYPE_TEXT_INPUT ||
1752 gi->type & GD_TYPE_TEXT_AREA ||
1753 gi->type & GD_TYPE_SELECTBOX))
1756 if (key == KSYM_Return) /* valid for both text input and selectbox */
1758 if (gi->type & GD_TYPE_TEXT_INPUT)
1759 CheckRangeOfNumericInputGadget(gi);
1760 else if (gi->type & GD_TYPE_SELECTBOX)
1761 gi->selectbox.index = gi->selectbox.current_index;
1763 if (gi->type & GD_TYPE_TEXT_AREA)
1765 insertCharIntoTextArea(gi, '\n');
1767 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1771 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1773 gi->event.type = GD_EVENT_TEXT_RETURN;
1778 if (gi->event_mask & GD_EVENT_TEXT_RETURN)
1779 gi->callback_action(gi);
1781 else if (gi->type & GD_TYPE_TEXT_INPUT) /* only valid for text input */
1783 char text[MAX_GADGET_TEXTSIZE];
1784 int text_length = strlen(gi->textinput.value);
1785 int cursor_pos = gi->textinput.cursor_position;
1786 char letter = getCharFromKey(key);
1787 boolean legal_letter = (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC ?
1788 letter >= '0' && letter <= '9' :
1791 if (legal_letter && text_length < gi->textinput.size)
1793 strcpy(text, gi->textinput.value);
1794 strcpy(&gi->textinput.value[cursor_pos + 1], &text[cursor_pos]);
1795 gi->textinput.value[cursor_pos] = letter;
1796 gi->textinput.cursor_position++;
1798 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1800 else if (key == KSYM_Left && cursor_pos > 0)
1802 gi->textinput.cursor_position--;
1804 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1806 else if (key == KSYM_Right && cursor_pos < text_length)
1808 gi->textinput.cursor_position++;
1810 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1812 else if (key == KSYM_BackSpace && cursor_pos > 0)
1814 strcpy(text, gi->textinput.value);
1815 strcpy(&gi->textinput.value[cursor_pos - 1], &text[cursor_pos]);
1816 gi->textinput.cursor_position--;
1818 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1820 else if (key == KSYM_Delete && cursor_pos < text_length)
1822 strcpy(text, gi->textinput.value);
1823 strcpy(&gi->textinput.value[cursor_pos], &text[cursor_pos + 1]);
1825 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1828 else if (gi->type & GD_TYPE_TEXT_AREA) /* only valid for text area */
1830 char text[MAX_GADGET_TEXTSIZE];
1831 int text_length = strlen(gi->textarea.value);
1832 int area_ysize = gi->textarea.ysize;
1833 int cursor_x_pref = gi->textarea.cursor_x_preferred;
1834 int cursor_y = gi->textarea.cursor_y;
1835 int cursor_pos = gi->textarea.cursor_position;
1836 char letter = getCharFromKey(key);
1837 boolean legal_letter = (letter != 0);
1841 insertCharIntoTextArea(gi, letter);
1843 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1845 else if (key == KSYM_Left && cursor_pos > 0)
1847 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
1849 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1851 else if (key == KSYM_Right && cursor_pos < text_length)
1853 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
1855 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1857 else if (key == KSYM_Up && cursor_y > 0)
1859 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y - 1);
1860 gi->textarea.cursor_x_preferred = cursor_x_pref;
1862 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1864 else if (key == KSYM_Down && cursor_y < area_ysize - 1)
1866 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y + 1);
1867 gi->textarea.cursor_x_preferred = cursor_x_pref;
1869 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1871 else if (key == KSYM_BackSpace && cursor_pos > 0)
1873 strcpy(text, gi->textarea.value);
1874 strcpy(&gi->textarea.value[cursor_pos - 1], &text[cursor_pos]);
1876 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
1878 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1880 else if (key == KSYM_Delete && cursor_pos < text_length)
1882 strcpy(text, gi->textarea.value);
1883 strcpy(&gi->textarea.value[cursor_pos], &text[cursor_pos + 1]);
1885 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1888 else if (gi->type & GD_TYPE_SELECTBOX) /* only valid for selectbox */
1890 int index = gi->selectbox.current_index;
1891 int num_values = gi->selectbox.num_values;
1893 if (key == KSYM_Up && index > 0)
1895 gi->selectbox.current_index--;
1897 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1899 else if (key == KSYM_Down && index < num_values - 1)
1901 gi->selectbox.current_index++;
1903 DrawGadget(gi, DG_PRESSED, gi->direct_draw);