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 /* restore background under selectbox */
556 BlitBitmap(gfx.field_save_buffer, drawto,
557 gi->selectbox.x, gi->selectbox.y,
558 gi->selectbox.width, gi->selectbox.height,
559 gi->selectbox.x, gi->selectbox.y);
561 /* redraw closed selectbox */
562 DrawGadget(gi, FALSE, FALSE);
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 int get_minimal_size_for_numeric_input(int minmax_value)
686 int min_size = 1; /* value needs at least one digit */
689 /* add number of digits needed for absolute value */
690 for (i = 10; i <= ABS(minmax_value); i *= 10)
693 /* if min/max value is negative, add one digit for minus sign */
694 if (minmax_value < 0)
700 static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
704 while (tag != GDI_END)
709 gi->custom_id = va_arg(ap, int);
712 case GDI_CUSTOM_TYPE_ID:
713 gi->custom_type_id = va_arg(ap, int);
718 int max_textsize = MAX_INFO_TEXTSIZE - 1;
719 char *text = va_arg(ap, char *);
722 strncpy(gi->info_text, text, max_textsize);
726 gi->info_text[max_textsize] = '\0';
731 gi->x = va_arg(ap, int);
735 gi->y = va_arg(ap, int);
739 gi->width = va_arg(ap, int);
743 gi->height = va_arg(ap, int);
747 gi->type = va_arg(ap, unsigned long);
751 gi->state = va_arg(ap, unsigned long);
755 /* take care here: "boolean" is typedef'ed as "unsigned char",
756 which gets promoted to "int" */
757 gi->active = (boolean)va_arg(ap, int);
760 case GDI_DIRECT_DRAW:
761 /* take care here: "boolean" is typedef'ed as "unsigned char",
762 which gets promoted to "int" */
763 gi->direct_draw = (boolean)va_arg(ap, int);
767 /* take care here: "boolean" is typedef'ed as "unsigned char",
768 which gets promoted to "int" */
769 gi->checked = (boolean)va_arg(ap, int);
773 gi->radio_nr = va_arg(ap, unsigned long);
776 case GDI_NUMBER_VALUE:
777 gi->textinput.number_value = va_arg(ap, long);
778 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
779 strcpy(gi->textinput.last_value, gi->textinput.value);
780 gi->textinput.cursor_position = strlen(gi->textinput.value);
784 gi->textinput.number_min = va_arg(ap, long);
785 if (gi->textinput.number_value < gi->textinput.number_min)
787 gi->textinput.number_value = gi->textinput.number_min;
788 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
789 strcpy(gi->textinput.last_value, gi->textinput.value);
794 gi->textinput.number_max = va_arg(ap, long);
795 if (gi->textinput.number_value > gi->textinput.number_max)
797 gi->textinput.number_value = gi->textinput.number_max;
798 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
799 strcpy(gi->textinput.last_value, gi->textinput.value);
805 int max_textsize = MAX_GADGET_TEXTSIZE;
807 if (gi->textinput.size)
808 max_textsize = MIN(gi->textinput.size, MAX_GADGET_TEXTSIZE - 1);
810 strncpy(gi->textinput.value, va_arg(ap, char *), max_textsize);
811 strcpy(gi->textinput.last_value, gi->textinput.value);
813 gi->textinput.value[max_textsize] = '\0';
814 gi->textinput.cursor_position = strlen(gi->textinput.value);
816 /* same tag also used for other gadget definitions */
817 strcpy(gi->textbutton.value, gi->textinput.value);
818 strcpy(gi->textarea.value, gi->textinput.value);
819 strcpy(gi->textarea.last_value, gi->textinput.value);
825 int tag_value = va_arg(ap, int);
826 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE - 1);
828 gi->textinput.size = max_textsize;
829 gi->textinput.value[max_textsize] = '\0';
830 strcpy(gi->textinput.last_value, gi->textinput.value);
832 /* same tag also used for other gadget definitions */
834 gi->textarea.size = max_textsize;
835 gi->textarea.value[max_textsize] = '\0';
836 strcpy(gi->textarea.last_value, gi->textinput.value);
838 gi->textbutton.size = max_textsize;
839 gi->textbutton.value[max_textsize] = '\0';
841 gi->selectbox.size = gi->textinput.size;
846 gi->font = va_arg(ap, int);
847 if (gi->font_active == 0)
848 gi->font_active = gi->font;
851 case GDI_TEXT_FONT_ACTIVE:
852 gi->font_active = va_arg(ap, int);
855 case GDI_SELECTBOX_OPTIONS:
856 gi->selectbox.options = va_arg(ap, struct ValueTextInfo *);
859 case GDI_SELECTBOX_INDEX:
860 gi->selectbox.index = va_arg(ap, int);
863 case GDI_DESIGN_UNPRESSED:
864 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
865 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
866 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
869 case GDI_DESIGN_PRESSED:
870 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
871 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
872 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
875 case GDI_ALT_DESIGN_UNPRESSED:
876 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
877 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
878 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
881 case GDI_ALT_DESIGN_PRESSED:
882 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
883 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
884 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
887 case GDI_BORDER_SIZE:
888 gi->border.xsize = va_arg(ap, int);
889 gi->border.ysize = va_arg(ap, int);
892 case GDI_BORDER_SIZE_SELECTBUTTON:
893 gi->border.xsize_selectbutton = va_arg(ap, int);
896 case GDI_DESIGN_WIDTH:
897 gi->border.width = va_arg(ap, int);
900 case GDI_DECORATION_DESIGN:
901 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
902 gi->deco.design.x = va_arg(ap, int);
903 gi->deco.design.y = va_arg(ap, int);
906 case GDI_DECORATION_POSITION:
907 gi->deco.x = va_arg(ap, int);
908 gi->deco.y = va_arg(ap, int);
911 case GDI_DECORATION_SIZE:
912 gi->deco.width = va_arg(ap, int);
913 gi->deco.height = va_arg(ap, int);
916 case GDI_DECORATION_SHIFTING:
917 gi->deco.xshift = va_arg(ap, int);
918 gi->deco.yshift = va_arg(ap, int);
922 gi->event_mask = va_arg(ap, unsigned long);
926 gi->drawing.area_xsize = va_arg(ap, int);
927 gi->drawing.area_ysize = va_arg(ap, int);
929 /* determine dependent values for drawing area gadget, if needed */
930 if (gi->width == 0 && gi->height == 0 &&
931 gi->drawing.item_xsize !=0 && gi->drawing.item_ysize !=0)
933 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
934 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
936 else if (gi->drawing.item_xsize == 0 && gi->drawing.item_ysize == 0 &&
937 gi->width != 0 && gi->height != 0)
939 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
940 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
943 /* same tag also used for other gadget definitions */
944 gi->textarea.xsize = gi->drawing.area_xsize;
945 gi->textarea.ysize = gi->drawing.area_ysize;
947 if (gi->type & GD_TYPE_TEXT_AREA) /* force recalculation */
956 gi->drawing.item_xsize = va_arg(ap, int);
957 gi->drawing.item_ysize = va_arg(ap, int);
959 /* determine dependent values for drawing area gadget, if needed */
960 if (gi->width == 0 && gi->height == 0 &&
961 gi->drawing.area_xsize !=0 && gi->drawing.area_ysize !=0)
963 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
964 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
966 else if (gi->drawing.area_xsize == 0 && gi->drawing.area_ysize == 0 &&
967 gi->width != 0 && gi->height != 0)
969 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
970 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
974 case GDI_SCROLLBAR_ITEMS_MAX:
975 gi->scrollbar.items_max = va_arg(ap, int);
978 case GDI_SCROLLBAR_ITEMS_VISIBLE:
979 gi->scrollbar.items_visible = va_arg(ap, int);
982 case GDI_SCROLLBAR_ITEM_POSITION:
983 gi->scrollbar.item_position = va_arg(ap, int);
986 case GDI_CALLBACK_INFO:
987 gi->callback_info = va_arg(ap, gadget_function);
990 case GDI_CALLBACK_ACTION:
991 gi->callback_action = va_arg(ap, gadget_function);
995 Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
998 tag = va_arg(ap, int); /* read next tag */
1001 /* check if gadget is complete */
1002 if (gi->type != GD_TYPE_DRAWING_AREA &&
1003 (!gi->design[GD_BUTTON_UNPRESSED].bitmap ||
1004 !gi->design[GD_BUTTON_PRESSED].bitmap))
1005 Error(ERR_EXIT, "gadget incomplete (missing Bitmap)");
1007 /* adjust gadget values in relation to other gadget values */
1009 if (gi->type & GD_TYPE_TEXT_INPUT)
1011 int font_nr = gi->font_active;
1012 int font_width = getFontWidth(font_nr);
1013 int font_height = getFontHeight(font_nr);
1014 int border_xsize = gi->border.xsize;
1015 int border_ysize = gi->border.ysize;
1017 if (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC)
1019 int number_min = gi->textinput.number_min;
1020 int number_max = gi->textinput.number_max;
1021 int min_size_min = get_minimal_size_for_numeric_input(number_min);
1022 int min_size_max = get_minimal_size_for_numeric_input(number_max);
1023 int min_size = MAX(min_size_min, min_size_max);
1025 /* expand gadget text input size, if maximal value is too large */
1026 if (gi->textinput.size < min_size)
1027 gi->textinput.size = min_size;
1030 gi->width = 2 * border_xsize + (gi->textinput.size + 1) * font_width;
1031 gi->height = 2 * border_ysize + font_height;
1034 if (gi->type & GD_TYPE_SELECTBOX)
1036 int font_nr = gi->font_active;
1037 int font_width = getFontWidth(font_nr);
1038 int font_height = getFontHeight(font_nr);
1039 int border_xsize = gi->border.xsize;
1040 int border_ysize = gi->border.ysize;
1041 int button_size = gi->border.xsize_selectbutton;
1042 int bottom_screen_border = gfx.sy + gfx.sysize - font_height;
1046 gi->width = 2 * border_xsize + gi->textinput.size*font_width +button_size;
1047 gi->height = 2 * border_ysize + font_height;
1049 if (gi->selectbox.options == NULL)
1050 Error(ERR_EXIT, "selectbox gadget incomplete (missing options array)");
1052 gi->selectbox.num_values = 0;
1053 while (gi->selectbox.options[gi->selectbox.num_values].text != NULL)
1054 gi->selectbox.num_values++;
1056 /* calculate values for open selectbox */
1057 gi->selectbox.width = gi->width;
1058 gi->selectbox.height =
1059 2 * border_ysize + gi->selectbox.num_values * font_height;
1061 gi->selectbox.x = gi->x;
1062 gi->selectbox.y = gi->y + gi->height;
1063 if (gi->selectbox.y + gi->selectbox.height > bottom_screen_border)
1064 gi->selectbox.y = gi->y - gi->selectbox.height;
1065 if (gi->selectbox.y < 0)
1066 gi->selectbox.y = bottom_screen_border - gi->selectbox.height;
1068 getFontCharSource(font_nr, FONT_ASCII_CURSOR, &src_bitmap, &src_x, &src_y);
1069 src_x += font_width / 2;
1070 src_y += font_height / 2;
1071 gi->selectbox.inverse_color = GetPixel(src_bitmap, src_x, src_y);
1073 /* always start with closed selectbox */
1074 gi->selectbox.open = FALSE;
1077 if (gi->type & GD_TYPE_TEXT_INPUT_NUMERIC)
1079 struct GadgetTextInput *text = &gi->textinput;
1080 int value = text->number_value;
1082 text->number_value = (value < text->number_min ? text->number_min :
1083 value > text->number_max ? text->number_max :
1086 sprintf(text->value, "%d", text->number_value);
1089 if (gi->type & GD_TYPE_TEXT_BUTTON)
1091 int font_nr = gi->font_active;
1092 int font_width = getFontWidth(font_nr);
1093 int font_height = getFontHeight(font_nr);
1094 int border_xsize = gi->border.xsize;
1095 int border_ysize = gi->border.ysize;
1097 gi->width = 2 * border_xsize + gi->textbutton.size * font_width;
1098 gi->height = 2 * border_ysize + font_height;
1101 if (gi->type & GD_TYPE_SCROLLBAR)
1103 struct GadgetScrollbar *gs = &gi->scrollbar;
1104 int scrollbar_size_cmp;
1106 if (gi->width == 0 || gi->height == 0 ||
1107 gs->items_max == 0 || gs->items_visible == 0)
1108 Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
1110 /* calculate internal scrollbar values */
1111 gs->size_min = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1112 gi->width : gi->height);
1113 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1114 gi->height : gi->width);
1116 scrollbar_size_cmp = gs->size_max * gs->items_visible / gs->items_max;
1117 gs->size = MAX(scrollbar_size_cmp, gs->size_min);
1118 gs->size_max_cmp = (gs->size_max - (gs->size - scrollbar_size_cmp));
1120 gs->position = gs->size_max_cmp * gs->item_position / gs->items_max;
1121 gs->position_max = gs->size_max - gs->size;
1122 gs->correction = gs->size_max / gs->items_max / 2;
1124 /* finetuning for maximal right/bottom position */
1125 if (gs->item_position == gs->items_max - gs->items_visible)
1126 gs->position = gs->position_max;
1129 if (gi->type & GD_TYPE_TEXT_AREA)
1131 int font_nr = gi->font_active;
1132 int font_width = getFontWidth(font_nr);
1133 int font_height = getFontHeight(font_nr);
1134 int border_xsize = gi->border.xsize;
1135 int border_ysize = gi->border.ysize;
1137 if (gi->width == 0 || gi->height == 0)
1139 gi->width = 2 * border_xsize + gi->textarea.xsize * font_width;
1140 gi->height = 2 * border_ysize + gi->textarea.ysize * font_height;
1144 gi->textarea.xsize = (gi->width - 2 * border_xsize) / font_width;
1145 gi->textarea.ysize = (gi->height - 2 * border_ysize) / font_height;
1150 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
1154 va_start(ap, first_tag);
1155 HandleGadgetTags(gi, first_tag, ap);
1161 void RedrawGadget(struct GadgetInfo *gi)
1164 DrawGadget(gi, gi->state, gi->direct_draw);
1167 struct GadgetInfo *CreateGadget(int first_tag, ...)
1169 struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
1172 /* always start with reliable default values */
1173 new_gadget->id = getNewGadgetID();
1174 new_gadget->callback_info = default_callback_info;
1175 new_gadget->callback_action = default_callback_action;
1176 new_gadget->active = TRUE;
1177 new_gadget->direct_draw = TRUE;
1179 new_gadget->next = NULL;
1181 va_start(ap, first_tag);
1182 HandleGadgetTags(new_gadget, first_tag, ap);
1185 /* insert new gadget into global gadget list */
1186 if (gadget_list_last_entry)
1188 gadget_list_last_entry->next = new_gadget;
1189 gadget_list_last_entry = gadget_list_last_entry->next;
1192 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
1197 void FreeGadget(struct GadgetInfo *gi)
1199 struct GadgetInfo *gi_previous = gadget_list_first_entry;
1201 while (gi_previous != NULL && gi_previous->next != gi)
1202 gi_previous = gi_previous->next;
1204 if (gi == gadget_list_first_entry)
1205 gadget_list_first_entry = gi->next;
1207 if (gi == gadget_list_last_entry)
1208 gadget_list_last_entry = gi_previous;
1210 if (gi_previous != NULL)
1211 gi_previous->next = gi->next;
1216 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
1218 if (gi->type != GD_TYPE_TEXT_INPUT_NUMERIC)
1221 gi->textinput.number_value = atoi(gi->textinput.value);
1223 if (gi->textinput.number_value < gi->textinput.number_min)
1224 gi->textinput.number_value = gi->textinput.number_min;
1225 if (gi->textinput.number_value > gi->textinput.number_max)
1226 gi->textinput.number_value = gi->textinput.number_max;
1228 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
1230 if (gi->textinput.cursor_position < 0)
1231 gi->textinput.cursor_position = 0;
1232 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1233 gi->textinput.cursor_position = strlen(gi->textinput.value);
1236 /* global pointer to gadget actually in use (when mouse button pressed) */
1237 static struct GadgetInfo *last_gi = NULL;
1239 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
1241 if (gi == NULL || gi->mapped)
1247 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
1250 void MapGadget(struct GadgetInfo *gi)
1252 MapGadgetExt(gi, TRUE);
1255 void UnmapGadget(struct GadgetInfo *gi)
1257 if (gi == NULL || !gi->mapped)
1266 #define MAX_NUM_GADGETS 1024
1267 #define MULTIMAP_UNMAP (1 << 0)
1268 #define MULTIMAP_REMAP (1 << 1)
1269 #define MULTIMAP_REDRAW (1 << 2)
1270 #define MULTIMAP_PLAYFIELD (1 << 3)
1271 #define MULTIMAP_DOOR_1 (1 << 4)
1272 #define MULTIMAP_DOOR_2 (1 << 5)
1273 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
1277 static void MultiMapGadgets(int mode)
1279 struct GadgetInfo *gi = gadget_list_first_entry;
1280 static boolean map_state[MAX_NUM_GADGETS];
1285 if ((mode & MULTIMAP_PLAYFIELD &&
1286 gi->x < gfx.sx + gfx.sxsize) ||
1287 (mode & MULTIMAP_DOOR_1 &&
1288 gi->x >= gfx.dx && gi->y < gfx.dy + gfx.dysize) ||
1289 (mode & MULTIMAP_DOOR_2 &&
1290 gi->x >= gfx.dx && gi->y > gfx.dy + gfx.dysize) ||
1291 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
1293 if (mode & MULTIMAP_UNMAP)
1295 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
1300 if (map_state[map_count++ % MAX_NUM_GADGETS])
1301 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
1309 void UnmapAllGadgets()
1311 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
1314 void RemapAllGadgets()
1316 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
1319 boolean anyTextInputGadgetActive()
1321 return (last_gi && (last_gi->type & GD_TYPE_TEXT_INPUT) && last_gi->mapped);
1324 boolean anyTextAreaGadgetActive()
1326 return (last_gi && (last_gi->type & GD_TYPE_TEXT_AREA) && last_gi->mapped);
1329 boolean anySelectboxGadgetActive()
1331 return (last_gi && (last_gi->type & GD_TYPE_SELECTBOX) && last_gi->mapped);
1334 boolean anyScrollbarGadgetActive()
1336 return (last_gi && (last_gi->type & GD_TYPE_SCROLLBAR) && last_gi->mapped);
1339 boolean anyTextGadgetActive()
1341 return (anyTextInputGadgetActive() ||
1342 anyTextAreaGadgetActive() ||
1343 anySelectboxGadgetActive());
1346 static boolean insideSelectboxLine(struct GadgetInfo *gi, int mx, int my)
1348 return(gi != NULL &&
1349 gi->type & GD_TYPE_SELECTBOX &&
1350 mx >= gi->x && mx < gi->x + gi->width &&
1351 my >= gi->y && my < gi->y + gi->height);
1354 static boolean insideSelectboxArea(struct GadgetInfo *gi, int mx, int my)
1356 return(gi != NULL &&
1357 gi->type & GD_TYPE_SELECTBOX &&
1358 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
1359 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height);
1362 void ClickOnGadget(struct GadgetInfo *gi, int button)
1367 /* simulate releasing mouse button over last gadget, if still pressed */
1369 HandleGadgets(-1, -1, 0);
1371 /* simulate pressing mouse button over specified gadget */
1372 HandleGadgets(gi->x, gi->y, button);
1374 /* simulate releasing mouse button over specified gadget */
1375 HandleGadgets(gi->x, gi->y, 0);
1378 boolean HandleGadgets(int mx, int my, int button)
1380 static struct GadgetInfo *last_info_gi = NULL;
1381 static unsigned long pressed_delay = 0;
1382 static int last_button = 0;
1383 static int last_mx = 0, last_my = 0;
1384 static int pressed_mx = 0, pressed_my = 0;
1385 int scrollbar_mouse_pos = 0;
1386 struct GadgetInfo *new_gi, *gi;
1387 boolean press_event;
1388 boolean release_event;
1389 boolean mouse_moving;
1390 boolean mouse_inside_select_line;
1391 boolean mouse_inside_select_area;
1392 boolean mouse_released_where_pressed;
1393 boolean gadget_pressed;
1394 boolean gadget_pressed_repeated;
1395 boolean gadget_pressed_off_borders;
1396 boolean gadget_pressed_inside_select_line;
1397 boolean gadget_moving;
1398 boolean gadget_moving_inside;
1399 boolean gadget_moving_off_borders;
1400 boolean gadget_released;
1401 boolean gadget_released_inside;
1402 boolean gadget_released_inside_select_line;
1403 boolean gadget_released_inside_select_area;
1404 boolean gadget_released_off_borders;
1405 boolean changed_position = FALSE;
1407 /* check if there are any gadgets defined */
1408 if (gadget_list_first_entry == NULL)
1411 /* simulated release of mouse button over last gadget */
1412 if (mx == -1 && my == -1 && button == 0)
1418 /* check which gadget is under the mouse pointer */
1419 new_gi = getGadgetInfoFromMousePosition(mx, my);
1421 /* check if button state has changed since last invocation */
1422 press_event = (button != 0 && last_button == 0);
1423 release_event = (button == 0 && last_button != 0);
1424 last_button = button;
1426 /* check if mouse has been moved since last invocation */
1427 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
1431 if (press_event && new_gi != last_gi)
1437 mouse_released_where_pressed =
1438 (release_event && mx == pressed_mx && my == pressed_my);
1440 mouse_inside_select_line = insideSelectboxLine(new_gi, mx, my);
1441 mouse_inside_select_area = insideSelectboxArea(new_gi, mx, my);
1443 gadget_pressed_off_borders = (press_event && new_gi != last_gi);
1445 gadget_pressed_inside_select_line =
1446 (press_event && new_gi != NULL &&
1447 new_gi->type & GD_TYPE_SELECTBOX && new_gi->selectbox.open &&
1448 insideSelectboxLine(new_gi, mx, my));
1450 /* if mouse button pressed outside text or selectbox gadget, deactivate it */
1452 if (anyTextGadgetActive() &&
1453 (gadget_pressed_off_borders ||
1454 (gadget_pressed_inside_select_line && !mouse_inside_select_area)))
1456 if (anyTextGadgetActive() &&
1457 button != 0 && !motion_status && new_gi != last_gi)
1460 struct GadgetInfo *gi = last_gi;
1461 boolean gadget_changed = (gi->event_mask & GD_EVENT_TEXT_LEAVING);
1463 /* check if text gadget has changed its value */
1464 if (gi->type & GD_TYPE_TEXT_INPUT)
1466 CheckRangeOfNumericInputGadget(gi);
1468 if (strcmp(gi->textinput.value, gi->textinput.last_value) != 0)
1469 strcpy(gi->textinput.last_value, gi->textinput.value);
1471 gadget_changed = FALSE;
1474 /* selectbox does not change its value when closed by clicking outside */
1475 if (gi->type & GD_TYPE_SELECTBOX)
1476 gadget_changed = FALSE;
1478 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1480 gi->event.type = GD_EVENT_TEXT_LEAVING;
1483 if (gadget_changed && !(gi->type & GD_TYPE_SELECTBOX))
1484 gi->callback_action(gi);
1486 if (gi->event_mask & GD_EVENT_TEXT_LEAVING)
1487 gi->callback_action(gi);
1492 if (gadget_pressed_inside_select_line)
1497 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
1498 gadget_pressed_repeated =
1499 (button != 0 && last_gi != NULL && new_gi == last_gi);
1501 gadget_released = (release_event && last_gi != NULL);
1502 gadget_released_inside = (gadget_released && new_gi == last_gi);
1503 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
1505 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
1506 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
1507 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
1509 /* when handling selectbox, set additional state values */
1510 if (gadget_released_inside && (last_gi->type & GD_TYPE_SELECTBOX))
1512 struct GadgetInfo *gi = last_gi;
1515 gadget_released_inside_select_line = insideSelectboxLine(gi, mx, my);
1516 gadget_released_inside_select_area = insideSelectboxArea(gi, mx, my);
1518 gadget_released_inside_select_line =
1519 (mx >= gi->x && mx < gi->x + gi->width &&
1520 my >= gi->y && my < gi->y + gi->height);
1521 gadget_released_inside_select_area =
1522 (mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
1523 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height);
1528 gadget_released_inside_select_line = FALSE;
1529 gadget_released_inside_select_area = FALSE;
1532 /* if new gadget pressed, store this gadget */
1536 /* 'gi' is actually handled gadget */
1539 /* if gadget is scrollbar, choose mouse position value */
1540 if (gi && gi->type & GD_TYPE_SCROLLBAR)
1541 scrollbar_mouse_pos =
1542 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
1544 /* if mouse button released, no gadget needs to be handled anymore */
1545 if (gadget_released)
1548 if (gi->type & GD_TYPE_SELECTBOX &&
1549 (mouse_released_where_pressed ||
1550 !gadget_released_inside_select_area)) /* selectbox stays open */
1552 gi->selectbox.stay_open = TRUE;
1557 if (gi->type & GD_TYPE_SELECTBOX &&
1558 (gadget_released_inside_select_line ||
1559 gadget_released_off_borders)) /* selectbox stays open */
1560 gi->selectbox.stay_open = TRUE;
1562 else if (!(gi->type & GD_TYPE_TEXT_INPUT ||
1563 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1567 /* modify event position values even if no gadget is pressed */
1568 if (button == 0 && !release_event)
1573 int last_x = gi->event.x;
1574 int last_y = gi->event.y;
1576 gi->event.x = mx - gi->x;
1577 gi->event.y = my - gi->y;
1579 if (gi->type == GD_TYPE_DRAWING_AREA)
1581 gi->event.x /= gi->drawing.item_xsize;
1582 gi->event.y /= gi->drawing.item_ysize;
1584 if (last_x != gi->event.x || last_y != gi->event.y)
1585 changed_position = TRUE;
1587 else if (gi->type & GD_TYPE_TEXT_INPUT && button != 0 && !motion_status)
1589 int old_cursor_position = gi->textinput.cursor_position;
1591 /* if mouse button pressed inside activated text gadget, set cursor */
1592 gi->textinput.cursor_position =
1593 (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1595 if (gi->textinput.cursor_position < 0)
1596 gi->textinput.cursor_position = 0;
1597 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1598 gi->textinput.cursor_position = strlen(gi->textinput.value);
1600 if (gi->textinput.cursor_position != old_cursor_position)
1601 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1603 else if (gi->type & GD_TYPE_TEXT_AREA && button != 0 && !motion_status)
1605 int old_cursor_position = gi->textarea.cursor_position;
1606 int x = (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1607 int y = (my - gi->y - gi->border.ysize) / getFontHeight(gi->font);
1609 x = (x < 0 ? 0 : x >= gi->textarea.xsize ? gi->textarea.xsize - 1 : x);
1610 y = (y < 0 ? 0 : y >= gi->textarea.ysize ? gi->textarea.ysize - 1 : y);
1612 setTextAreaCursorXY(gi, x, y);
1614 if (gi->textarea.cursor_position != old_cursor_position)
1615 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1617 else if (gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open)
1619 int old_index = gi->selectbox.current_index;
1621 /* if mouse moving inside activated selectbox, select value */
1622 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1623 gi->selectbox.current_index =
1624 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1626 if (gi->selectbox.current_index < 0)
1627 gi->selectbox.current_index = 0;
1628 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1629 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1631 if (gi->selectbox.current_index != old_index)
1632 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1636 /* handle gadget popup info text */
1637 if (last_info_gi != new_gi ||
1638 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
1640 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
1642 new_gi->event.type = GD_EVENT_INFO_ENTERING;
1643 new_gi->callback_info(new_gi);
1645 else if (last_info_gi != NULL)
1647 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
1648 last_info_gi->callback_info(last_info_gi);
1651 last_info_gi = new_gi;
1656 if (gi->type == GD_TYPE_CHECK_BUTTON)
1658 gi->checked = !gi->checked;
1660 else if (gi->type == GD_TYPE_RADIO_BUTTON)
1662 struct GadgetInfo *rgi = gadget_list_first_entry;
1667 rgi->type == GD_TYPE_RADIO_BUTTON &&
1668 rgi->radio_nr == gi->radio_nr &&
1671 rgi->checked = FALSE;
1672 DrawGadget(rgi, DG_UNPRESSED, rgi->direct_draw);
1680 else if (gi->type & GD_TYPE_SCROLLBAR)
1684 if (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL)
1695 if (mpos >= gpos + gi->scrollbar.position &&
1696 mpos < gpos + gi->scrollbar.position + gi->scrollbar.size)
1698 /* drag scrollbar */
1699 gi->scrollbar.drag_position =
1700 scrollbar_mouse_pos - gi->scrollbar.position;
1704 /* click scrollbar one scrollbar length up/left or down/right */
1706 struct GadgetScrollbar *gs = &gi->scrollbar;
1707 int old_item_position = gs->item_position;
1709 changed_position = FALSE;
1711 gs->item_position +=
1712 gs->items_visible * (mpos < gpos + gi->scrollbar.position ? -1 : +1);
1714 if (gs->item_position < 0)
1715 gs->item_position = 0;
1716 if (gs->item_position > gs->items_max - gs->items_visible)
1717 gs->item_position = gs->items_max - gs->items_visible;
1719 if (old_item_position != gs->item_position)
1721 gi->event.item_position = gs->item_position;
1722 changed_position = TRUE;
1725 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
1728 gi->state = GD_BUTTON_UNPRESSED;
1729 gi->event.type = GD_EVENT_MOVING;
1730 gi->event.off_borders = FALSE;
1732 if (gi->event_mask & GD_EVENT_MOVING && changed_position)
1733 gi->callback_action(gi);
1735 /* don't handle this scrollbar anymore while mouse button pressed */
1742 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1744 gi->state = GD_BUTTON_PRESSED;
1745 gi->event.type = GD_EVENT_PRESSED;
1746 gi->event.button = button;
1747 gi->event.off_borders = FALSE;
1749 /* initialize delay counter */
1750 DelayReached(&pressed_delay, 0);
1752 if (gi->event_mask & GD_EVENT_PRESSED)
1753 gi->callback_action(gi);
1756 if (gadget_pressed_repeated)
1758 gi->event.type = GD_EVENT_PRESSED;
1760 if (gi->event_mask & GD_EVENT_REPEATED &&
1761 DelayReached(&pressed_delay, GADGET_FRAME_DELAY))
1762 gi->callback_action(gi);
1767 if (gi->type & GD_TYPE_BUTTON)
1769 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
1770 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1771 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
1772 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1774 else if (gi->type & GD_TYPE_SELECTBOX)
1776 int old_index = gi->selectbox.current_index;
1778 /* if mouse moving inside activated selectbox, select value */
1779 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1780 gi->selectbox.current_index =
1781 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1783 if (gi->selectbox.current_index < 0)
1784 gi->selectbox.current_index = 0;
1785 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1786 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1788 if (gi->selectbox.current_index != old_index)
1789 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1791 else if (gi->type & GD_TYPE_SCROLLBAR)
1793 struct GadgetScrollbar *gs = &gi->scrollbar;
1794 int old_item_position = gs->item_position;
1796 gs->position = scrollbar_mouse_pos - gs->drag_position;
1798 if (gs->position < 0)
1800 if (gs->position > gs->position_max)
1801 gs->position = gs->position_max;
1804 gs->items_max * (gs->position + gs->correction) / gs->size_max_cmp;
1806 if (gs->item_position < 0)
1807 gs->item_position = 0;
1808 if (gs->item_position > gs->items_max - 1)
1809 gs->item_position = gs->items_max - 1;
1811 if (old_item_position != gs->item_position)
1813 gi->event.item_position = gs->item_position;
1814 changed_position = TRUE;
1817 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1820 gi->state = (gadget_moving_inside || gi->type & GD_TYPE_SCROLLBAR ?
1821 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
1822 gi->event.type = GD_EVENT_MOVING;
1823 gi->event.off_borders = gadget_moving_off_borders;
1825 if (gi->event_mask & GD_EVENT_MOVING && changed_position &&
1826 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
1827 gi->callback_action(gi);
1830 if (gadget_released_inside)
1832 boolean deactivate_gadget = TRUE;
1833 boolean gadget_changed = TRUE;
1835 if (gi->type & GD_TYPE_SELECTBOX)
1838 if (mouse_released_where_pressed ||
1839 !gadget_released_inside_select_area) /* selectbox stays open */
1841 deactivate_gadget = FALSE;
1842 gadget_changed = FALSE;
1845 if (gadget_released_inside_select_line ||
1846 gadget_released_off_borders) /* selectbox stays open */
1848 deactivate_gadget = FALSE;
1849 gadget_changed = FALSE;
1852 else if (gi->selectbox.index != gi->selectbox.current_index)
1853 gi->selectbox.index = gi->selectbox.current_index;
1855 gadget_changed = FALSE;
1858 if (deactivate_gadget &&
1859 !(gi->type & GD_TYPE_TEXT_INPUT ||
1860 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1861 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1863 gi->state = GD_BUTTON_UNPRESSED;
1864 gi->event.type = GD_EVENT_RELEASED;
1867 if ((gi->event_mask & GD_EVENT_RELEASED) && gadget_changed)
1869 gi->callback_action(gi);
1872 if ((gi->event_mask & GD_EVENT_RELEASED) && deactivate_gadget)
1873 gi->callback_action(gi);
1877 if (gadget_released_off_borders)
1879 if (gi->type & GD_TYPE_SCROLLBAR)
1880 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1882 gi->event.type = GD_EVENT_RELEASED;
1884 if (gi->event_mask & GD_EVENT_RELEASED &&
1885 gi->event_mask & GD_EVENT_OFF_BORDERS)
1886 gi->callback_action(gi);
1889 /* handle gadgets unmapped/mapped between pressing and releasing */
1890 if (release_event && !gadget_released && new_gi)
1891 new_gi->state = GD_BUTTON_UNPRESSED;
1893 return (gadget_pressed || gadget_pressed_repeated ||
1894 gadget_released || gadget_moving);
1897 static void insertCharIntoTextArea(struct GadgetInfo *gi, char c)
1899 char text[MAX_GADGET_TEXTSIZE];
1900 int cursor_position = gi->textarea.cursor_position;
1902 if (strlen(gi->textarea.value) == MAX_GADGET_TEXTSIZE) /* no space left */
1905 strcpy(text, gi->textarea.value);
1906 strcpy(&gi->textarea.value[cursor_position + 1], &text[cursor_position]);
1907 gi->textarea.value[cursor_position] = c;
1909 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
1912 boolean HandleGadgetsKeyInput(Key key)
1914 struct GadgetInfo *gi = last_gi;
1916 if (gi == NULL || !gi->mapped ||
1917 !(gi->type & GD_TYPE_TEXT_INPUT ||
1918 gi->type & GD_TYPE_TEXT_AREA ||
1919 gi->type & GD_TYPE_SELECTBOX))
1922 if (key == KSYM_Return) /* valid for both text input and selectbox */
1924 boolean gadget_changed = (gi->event_mask & GD_EVENT_TEXT_RETURN);
1926 if (gi->type & GD_TYPE_TEXT_INPUT)
1928 CheckRangeOfNumericInputGadget(gi);
1930 if (strcmp(gi->textinput.value, gi->textinput.last_value) != 0)
1931 strcpy(gi->textinput.last_value, gi->textinput.value);
1933 gadget_changed = FALSE;
1935 else if (gi->type & GD_TYPE_SELECTBOX)
1937 if (gi->selectbox.index != gi->selectbox.current_index)
1938 gi->selectbox.index = gi->selectbox.current_index;
1940 gadget_changed = FALSE;
1943 if (gi->type & GD_TYPE_TEXT_AREA)
1945 insertCharIntoTextArea(gi, '\n');
1947 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1951 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1953 gi->event.type = GD_EVENT_TEXT_RETURN;
1960 gi->callback_action(gi);
1962 if (gi->event_mask & GD_EVENT_TEXT_RETURN)
1963 gi->callback_action(gi);
1966 else if (gi->type & GD_TYPE_TEXT_INPUT) /* only valid for text input */
1968 char text[MAX_GADGET_TEXTSIZE];
1969 int text_length = strlen(gi->textinput.value);
1970 int cursor_pos = gi->textinput.cursor_position;
1971 char letter = getCharFromKey(key);
1972 boolean legal_letter = (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC ?
1973 letter >= '0' && letter <= '9' :
1976 if (legal_letter && text_length < gi->textinput.size)
1978 strcpy(text, gi->textinput.value);
1979 strcpy(&gi->textinput.value[cursor_pos + 1], &text[cursor_pos]);
1980 gi->textinput.value[cursor_pos] = letter;
1981 gi->textinput.cursor_position++;
1983 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1985 else if (key == KSYM_Left && cursor_pos > 0)
1987 gi->textinput.cursor_position--;
1989 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1991 else if (key == KSYM_Right && cursor_pos < text_length)
1993 gi->textinput.cursor_position++;
1995 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1997 else if (key == KSYM_BackSpace && cursor_pos > 0)
1999 strcpy(text, gi->textinput.value);
2000 strcpy(&gi->textinput.value[cursor_pos - 1], &text[cursor_pos]);
2001 gi->textinput.cursor_position--;
2003 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2005 else if (key == KSYM_Delete && cursor_pos < text_length)
2007 strcpy(text, gi->textinput.value);
2008 strcpy(&gi->textinput.value[cursor_pos], &text[cursor_pos + 1]);
2010 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2013 else if (gi->type & GD_TYPE_TEXT_AREA) /* only valid for text area */
2015 char text[MAX_GADGET_TEXTSIZE];
2016 int text_length = strlen(gi->textarea.value);
2017 int area_ysize = gi->textarea.ysize;
2018 int cursor_x_pref = gi->textarea.cursor_x_preferred;
2019 int cursor_y = gi->textarea.cursor_y;
2020 int cursor_pos = gi->textarea.cursor_position;
2021 char letter = getCharFromKey(key);
2022 boolean legal_letter = (letter != 0);
2026 insertCharIntoTextArea(gi, letter);
2028 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2030 else if (key == KSYM_Left && cursor_pos > 0)
2032 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2034 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2036 else if (key == KSYM_Right && cursor_pos < text_length)
2038 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2040 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2042 else if (key == KSYM_Up && cursor_y > 0)
2044 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y - 1);
2045 gi->textarea.cursor_x_preferred = cursor_x_pref;
2047 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2049 else if (key == KSYM_Down && cursor_y < area_ysize - 1)
2051 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y + 1);
2052 gi->textarea.cursor_x_preferred = cursor_x_pref;
2054 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2056 else if (key == KSYM_BackSpace && cursor_pos > 0)
2058 strcpy(text, gi->textarea.value);
2059 strcpy(&gi->textarea.value[cursor_pos - 1], &text[cursor_pos]);
2061 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2063 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2065 else if (key == KSYM_Delete && cursor_pos < text_length)
2067 strcpy(text, gi->textarea.value);
2068 strcpy(&gi->textarea.value[cursor_pos], &text[cursor_pos + 1]);
2070 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2073 else if (gi->type & GD_TYPE_SELECTBOX) /* only valid for selectbox */
2075 int index = gi->selectbox.current_index;
2076 int num_values = gi->selectbox.num_values;
2078 if (key == KSYM_Up && index > 0)
2080 gi->selectbox.current_index--;
2082 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2084 else if (key == KSYM_Down && index < num_values - 1)
2086 gi->selectbox.current_index++;
2088 DrawGadget(gi, DG_PRESSED, gi->direct_draw);