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,
362 gi->textarea.xsize, gi->textarea.ysize);
364 cursor_letter = gi->textarea.value[gi->textarea.cursor_position];
365 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
366 cursor_string[1] = '\0';
368 /* draw cursor, if active */
371 gi->x + border_x + gi->textarea.cursor_x * font_width,
372 gi->y + border_y + gi->textarea.cursor_y * font_height,
374 font_nr, BLIT_INVERSE);
378 case GD_TYPE_SELECTBOX:
381 char text[MAX_GADGET_TEXTSIZE + 1];
382 int font_nr = (pressed ? gi->font_active : gi->font);
383 int font_width = getFontWidth(font_nr);
384 int font_height = getFontHeight(font_nr);
385 int border_x = gi->border.xsize;
386 int border_y = gi->border.ysize;
387 int button = gi->border.xsize_selectbutton;
388 int width_inner = gi->border.width - button - 2 * border_x;
389 int box_width = gi->selectbox.width;
390 int box_height = gi->selectbox.height;
392 /* left part of gadget */
393 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
394 border_x, gi->height, gi->x, gi->y);
396 /* middle part of gadget */
397 for (i=0; i < gi->selectbox.size; i++)
398 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
399 font_width, gi->height,
400 gi->x + border_x + i * font_width, gi->y);
402 /* button part of gadget */
403 BlitBitmapOnBackground(gd->bitmap, drawto,
404 gd->x + border_x + width_inner, gd->y,
406 gi->x + gi->width - border_x - button, gi->y);
408 /* right part of gadget */
409 BlitBitmapOnBackground(gd->bitmap, drawto,
410 gd->x + gi->border.width - border_x, gd->y,
411 border_x, gi->height,
412 gi->x + gi->width - border_x, gi->y);
415 strncpy(text, gi->selectbox.options[gi->selectbox.index].text,
417 text[gi->selectbox.size] = '\0';
419 /* gadget text value */
420 DrawTextExt(drawto, gi->x + border_x, gi->y + border_y, text,
421 font_nr, BLIT_MASKED);
425 if (!gi->selectbox.open)
427 gi->selectbox.open = TRUE;
428 gi->selectbox.stay_open = FALSE;
429 gi->selectbox.current_index = gi->selectbox.index;
431 /* save background under selectbox */
432 BlitBitmap(drawto, gfx.field_save_buffer,
433 gi->selectbox.x, gi->selectbox.y,
434 gi->selectbox.width, gi->selectbox.height,
435 gi->selectbox.x, gi->selectbox.y);
438 /* draw open selectbox */
440 /* top left part of gadget border */
441 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
443 gi->selectbox.x, gi->selectbox.y);
445 /* top middle part of gadget border */
446 for (i=0; i < gi->selectbox.size; i++)
447 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
448 font_width, border_y,
449 gi->selectbox.x + border_x + i * font_width,
452 /* top button part of gadget border */
453 BlitBitmapOnBackground(gd->bitmap, drawto,
454 gd->x + border_x + width_inner, gd->y,
456 gi->selectbox.x + box_width -border_x -button,
459 /* top right part of gadget border */
460 BlitBitmapOnBackground(gd->bitmap, drawto,
461 gd->x + gi->border.width - border_x, gd->y,
463 gi->selectbox.x + box_width - border_x,
466 /* left and right part of gadget border for each row */
467 for (i=0; i < gi->selectbox.num_values; i++)
469 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
470 border_x, font_height,
472 gi->selectbox.y + border_y + i*font_height);
473 BlitBitmapOnBackground(gd->bitmap, drawto,
474 gd->x + gi->border.width - border_x,
476 border_x, font_height,
477 gi->selectbox.x + box_width - border_x,
478 gi->selectbox.y + border_y + i*font_height);
481 /* bottom left part of gadget border */
482 BlitBitmapOnBackground(gd->bitmap, drawto,
483 gd->x, gd->y + gi->height - border_y,
486 gi->selectbox.y + box_height - border_y);
488 /* bottom middle part of gadget border */
489 for (i=0; i < gi->selectbox.size; i++)
490 BlitBitmapOnBackground(gd->bitmap, drawto,
492 gd->y + gi->height - border_y,
493 font_width, border_y,
494 gi->selectbox.x + border_x + i * font_width,
495 gi->selectbox.y + box_height - border_y);
497 /* bottom button part of gadget border */
498 BlitBitmapOnBackground(gd->bitmap, drawto,
499 gd->x + border_x + width_inner,
500 gd->y + gi->height - border_y,
502 gi->selectbox.x + box_width -border_x -button,
503 gi->selectbox.y + box_height - border_y);
505 /* bottom right part of gadget border */
506 BlitBitmapOnBackground(gd->bitmap, drawto,
507 gd->x + gi->border.width - border_x,
508 gd->y + gi->height - border_y,
510 gi->selectbox.x + box_width - border_x,
511 gi->selectbox.y + box_height - border_y);
513 ClearRectangleOnBackground(drawto,
514 gi->selectbox.x + border_x,
515 gi->selectbox.y + border_y,
516 gi->selectbox.width - 2 * border_x,
517 gi->selectbox.height - 2 * border_y);
519 /* selectbox text values */
520 for (i=0; i < gi->selectbox.num_values; i++)
522 int mask_mode = BLIT_MASKED;
524 strncpy(text, gi->selectbox.options[i].text, gi->selectbox.size);
525 text[gi->selectbox.size] = '\0';
527 if (i == gi->selectbox.current_index)
529 FillRectangle(drawto,
530 gi->selectbox.x + border_x,
531 gi->selectbox.y + border_y + i * font_height,
532 gi->selectbox.width - 2 * border_x, font_height,
533 gi->selectbox.inverse_color);
535 /* prevent use of cursor graphic by drawing at least two chars */
537 text[gi->selectbox.size] = '\0';
539 mask_mode = BLIT_INVERSE;
543 gi->selectbox.x + border_x,
544 gi->selectbox.y + border_y + i * font_height, text,
548 redraw_selectbox = TRUE;
550 else if (gi->selectbox.open)
552 gi->selectbox.open = FALSE;
554 /* redraw closed selectbox */
555 DrawGadget(gi, FALSE, FALSE);
557 /* restore background under selectbox */
558 BlitBitmap(gfx.field_save_buffer, drawto,
559 gi->selectbox.x, gi->selectbox.y,
560 gi->selectbox.width, gi->selectbox.height,
561 gi->selectbox.x, gi->selectbox.y);
563 redraw_selectbox = TRUE;
568 case GD_TYPE_SCROLLBAR_VERTICAL:
572 int ypos = gi->y + gi->scrollbar.position;
573 int design_full = gi->width;
574 int design_body = design_full - 2 * gi->border.ysize;
575 int size_full = gi->scrollbar.size;
576 int size_body = size_full - 2 * gi->border.ysize;
577 int num_steps = size_body / design_body;
578 int step_size_remain = size_body - num_steps * design_body;
580 /* clear scrollbar area */
581 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
582 gi->width, gi->height);
584 /* upper part of gadget */
585 BlitBitmapOnBackground(gd->bitmap, drawto,
587 gi->width, gi->border.ysize,
590 /* middle part of gadget */
591 for (i=0; i<num_steps; i++)
592 BlitBitmapOnBackground(gd->bitmap, drawto,
593 gd->x, gd->y + gi->border.ysize,
594 gi->width, design_body,
596 ypos + gi->border.ysize + i * design_body);
598 /* remaining middle part of gadget */
599 if (step_size_remain > 0)
600 BlitBitmapOnBackground(gd->bitmap, drawto,
601 gd->x, gd->y + gi->border.ysize,
602 gi->width, step_size_remain,
604 ypos + gi->border.ysize
605 + num_steps * design_body);
607 /* lower part of gadget */
608 BlitBitmapOnBackground(gd->bitmap, drawto,
609 gd->x, gd->y + design_full - gi->border.ysize,
610 gi->width, gi->border.ysize,
611 xpos, ypos + size_full - gi->border.ysize);
615 case GD_TYPE_SCROLLBAR_HORIZONTAL:
618 int xpos = gi->x + gi->scrollbar.position;
620 int design_full = gi->height;
621 int design_body = design_full - 2 * gi->border.xsize;
622 int size_full = gi->scrollbar.size;
623 int size_body = size_full - 2 * gi->border.xsize;
624 int num_steps = size_body / design_body;
625 int step_size_remain = size_body - num_steps * design_body;
627 /* clear scrollbar area */
628 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
629 gi->width, gi->height);
631 /* left part of gadget */
632 BlitBitmapOnBackground(gd->bitmap, drawto,
634 gi->border.xsize, gi->height,
637 /* middle part of gadget */
638 for (i=0; i<num_steps; i++)
639 BlitBitmapOnBackground(gd->bitmap, drawto,
640 gd->x + gi->border.xsize, gd->y,
641 design_body, gi->height,
642 xpos + gi->border.xsize + i * design_body,
645 /* remaining middle part of gadget */
646 if (step_size_remain > 0)
647 BlitBitmapOnBackground(gd->bitmap, drawto,
648 gd->x + gi->border.xsize, gd->y,
649 step_size_remain, gi->height,
650 xpos + gi->border.xsize
651 + num_steps * design_body,
654 /* right part of gadget */
655 BlitBitmapOnBackground(gd->bitmap, drawto,
656 gd->x + design_full - gi->border.xsize, gd->y,
657 gi->border.xsize, gi->height,
658 xpos + size_full - gi->border.xsize, ypos);
668 BlitBitmap(drawto, window,
669 gi->x, gi->y, gi->width, gi->height, gi->x, gi->y);
671 if (gi->type == GD_TYPE_SELECTBOX && redraw_selectbox)
672 BlitBitmap(drawto, window,
673 gi->selectbox.x, gi->selectbox.y,
674 gi->selectbox.width, gi->selectbox.height,
675 gi->selectbox.x, gi->selectbox.y);
678 redraw_mask |= (gi->x < gfx.sx + gfx.sxsize ? REDRAW_FIELD :
679 gi->y < gfx.dy + gfx.dysize ? REDRAW_DOOR_1 :
680 gi->y > gfx.vy ? REDRAW_DOOR_2 : REDRAW_DOOR_3);
683 static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
687 while (tag != GDI_END)
692 gi->custom_id = va_arg(ap, int);
695 case GDI_CUSTOM_TYPE_ID:
696 gi->custom_type_id = va_arg(ap, int);
701 int max_textsize = MAX_INFO_TEXTSIZE - 1;
702 char *text = va_arg(ap, char *);
705 strncpy(gi->info_text, text, max_textsize);
709 gi->info_text[max_textsize] = '\0';
714 gi->x = va_arg(ap, int);
718 gi->y = va_arg(ap, int);
722 gi->width = va_arg(ap, int);
726 gi->height = va_arg(ap, int);
730 gi->type = va_arg(ap, unsigned long);
734 gi->state = va_arg(ap, unsigned long);
738 /* take care here: "boolean" is typedef'ed as "unsigned char",
739 which gets promoted to "int" */
740 gi->active = (boolean)va_arg(ap, int);
743 case GDI_DIRECT_DRAW:
744 /* take care here: "boolean" is typedef'ed as "unsigned char",
745 which gets promoted to "int" */
746 gi->direct_draw = (boolean)va_arg(ap, int);
750 /* take care here: "boolean" is typedef'ed as "unsigned char",
751 which gets promoted to "int" */
752 gi->checked = (boolean)va_arg(ap, int);
756 gi->radio_nr = va_arg(ap, unsigned long);
759 case GDI_NUMBER_VALUE:
760 gi->textinput.number_value = va_arg(ap, long);
761 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
762 gi->textinput.cursor_position = strlen(gi->textinput.value);
766 gi->textinput.number_min = va_arg(ap, long);
767 if (gi->textinput.number_value < gi->textinput.number_min)
769 gi->textinput.number_value = gi->textinput.number_min;
770 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
775 gi->textinput.number_max = va_arg(ap, long);
776 if (gi->textinput.number_value > gi->textinput.number_max)
778 gi->textinput.number_value = gi->textinput.number_max;
779 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
785 int max_textsize = MAX_GADGET_TEXTSIZE;
787 if (gi->textinput.size)
788 max_textsize = MIN(gi->textinput.size, MAX_GADGET_TEXTSIZE - 1);
790 strncpy(gi->textinput.value, va_arg(ap, char *), max_textsize);
791 gi->textinput.value[max_textsize] = '\0';
792 gi->textinput.cursor_position = strlen(gi->textinput.value);
794 /* same tag also used for other gadget definitions */
795 strcpy(gi->textbutton.value, gi->textinput.value);
796 strcpy(gi->textarea.value, gi->textinput.value);
802 int tag_value = va_arg(ap, int);
803 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE - 1);
805 gi->textinput.size = max_textsize;
806 gi->textinput.value[max_textsize] = '\0';
808 /* same tag also used for other gadget definitions */
809 strcpy(gi->textbutton.value, gi->textinput.value);
810 gi->textbutton.size = gi->textinput.size;
811 gi->selectbox.size = gi->textinput.size;
816 gi->font = va_arg(ap, int);
817 if (gi->font_active == 0)
818 gi->font_active = gi->font;
821 case GDI_TEXT_FONT_ACTIVE:
822 gi->font_active = va_arg(ap, int);
825 case GDI_SELECTBOX_OPTIONS:
826 gi->selectbox.options = va_arg(ap, struct ValueTextInfo *);
829 case GDI_SELECTBOX_INDEX:
830 gi->selectbox.index = va_arg(ap, int);
833 case GDI_DESIGN_UNPRESSED:
834 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
835 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
836 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
839 case GDI_DESIGN_PRESSED:
840 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
841 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
842 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
845 case GDI_ALT_DESIGN_UNPRESSED:
846 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
847 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
848 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
851 case GDI_ALT_DESIGN_PRESSED:
852 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
853 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
854 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
857 case GDI_BORDER_SIZE:
858 gi->border.xsize = va_arg(ap, int);
859 gi->border.ysize = va_arg(ap, int);
862 case GDI_BORDER_SIZE_SELECTBUTTON:
863 gi->border.xsize_selectbutton = va_arg(ap, int);
866 case GDI_DESIGN_WIDTH:
867 gi->border.width = va_arg(ap, int);
870 case GDI_DECORATION_DESIGN:
871 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
872 gi->deco.design.x = va_arg(ap, int);
873 gi->deco.design.y = va_arg(ap, int);
876 case GDI_DECORATION_POSITION:
877 gi->deco.x = va_arg(ap, int);
878 gi->deco.y = va_arg(ap, int);
881 case GDI_DECORATION_SIZE:
882 gi->deco.width = va_arg(ap, int);
883 gi->deco.height = va_arg(ap, int);
886 case GDI_DECORATION_SHIFTING:
887 gi->deco.xshift = va_arg(ap, int);
888 gi->deco.yshift = va_arg(ap, int);
892 gi->event_mask = va_arg(ap, unsigned long);
896 gi->drawing.area_xsize = va_arg(ap, int);
897 gi->drawing.area_ysize = va_arg(ap, int);
899 /* determine dependent values for drawing area gadget, if needed */
900 if (gi->width == 0 && gi->height == 0 &&
901 gi->drawing.item_xsize !=0 && gi->drawing.item_ysize !=0)
903 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
904 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
906 else if (gi->drawing.item_xsize == 0 && gi->drawing.item_ysize == 0 &&
907 gi->width != 0 && gi->height != 0)
909 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
910 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
913 /* same tag also used for other gadget definitions */
914 gi->textarea.xsize = gi->drawing.area_xsize;
915 gi->textarea.ysize = gi->drawing.area_ysize;
917 if (gi->type & GD_TYPE_TEXT_AREA) /* force recalculation */
926 gi->drawing.item_xsize = va_arg(ap, int);
927 gi->drawing.item_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.area_xsize !=0 && gi->drawing.area_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.area_xsize == 0 && gi->drawing.area_ysize == 0 &&
937 gi->width != 0 && gi->height != 0)
939 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
940 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
944 case GDI_SCROLLBAR_ITEMS_MAX:
945 gi->scrollbar.items_max = va_arg(ap, int);
948 case GDI_SCROLLBAR_ITEMS_VISIBLE:
949 gi->scrollbar.items_visible = va_arg(ap, int);
952 case GDI_SCROLLBAR_ITEM_POSITION:
953 gi->scrollbar.item_position = va_arg(ap, int);
956 case GDI_CALLBACK_INFO:
957 gi->callback_info = va_arg(ap, gadget_function);
960 case GDI_CALLBACK_ACTION:
961 gi->callback_action = va_arg(ap, gadget_function);
965 Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
968 tag = va_arg(ap, int); /* read next tag */
971 /* check if gadget is complete */
972 if (gi->type != GD_TYPE_DRAWING_AREA &&
973 (!gi->design[GD_BUTTON_UNPRESSED].bitmap ||
974 !gi->design[GD_BUTTON_PRESSED].bitmap))
975 Error(ERR_EXIT, "gadget incomplete (missing Bitmap)");
977 /* adjust gadget values in relation to other gadget values */
979 if (gi->type & GD_TYPE_TEXT_INPUT)
981 int font_nr = gi->font_active;
982 int font_width = getFontWidth(font_nr);
983 int font_height = getFontHeight(font_nr);
984 int border_xsize = gi->border.xsize;
985 int border_ysize = gi->border.ysize;
987 gi->width = 2 * border_xsize + (gi->textinput.size + 1) * font_width;
988 gi->height = 2 * border_ysize + font_height;
991 if (gi->type & GD_TYPE_SELECTBOX)
993 int font_nr = gi->font_active;
994 int font_width = getFontWidth(font_nr);
995 int font_height = getFontHeight(font_nr);
996 int border_xsize = gi->border.xsize;
997 int border_ysize = gi->border.ysize;
998 int button_size = gi->border.xsize_selectbutton;
999 int bottom_screen_border = gfx.sy + gfx.sysize - font_height;
1003 gi->width = 2 * border_xsize + gi->textinput.size*font_width +button_size;
1004 gi->height = 2 * border_ysize + font_height;
1006 if (gi->selectbox.options == NULL)
1007 Error(ERR_EXIT, "selectbox gadget incomplete (missing options array)");
1009 gi->selectbox.num_values = 0;
1010 while (gi->selectbox.options[gi->selectbox.num_values].text != NULL)
1011 gi->selectbox.num_values++;
1013 /* calculate values for open selectbox */
1014 gi->selectbox.width = gi->width;
1015 gi->selectbox.height =
1016 2 * border_ysize + gi->selectbox.num_values * font_height;
1018 gi->selectbox.x = gi->x;
1019 gi->selectbox.y = gi->y + gi->height;
1020 if (gi->selectbox.y + gi->selectbox.height > bottom_screen_border)
1021 gi->selectbox.y = gi->y - gi->selectbox.height;
1022 if (gi->selectbox.y < 0)
1023 gi->selectbox.y = bottom_screen_border - gi->selectbox.height;
1025 getFontCharSource(font_nr, FONT_ASCII_CURSOR, &src_bitmap, &src_x, &src_y);
1026 src_x += font_width / 2;
1027 src_y += font_height / 2;
1028 gi->selectbox.inverse_color = GetPixel(src_bitmap, src_x, src_y);
1030 /* always start with closed selectbox */
1031 gi->selectbox.open = FALSE;
1034 if (gi->type & GD_TYPE_TEXT_INPUT_NUMERIC)
1036 struct GadgetTextInput *text = &gi->textinput;
1037 int value = text->number_value;
1039 text->number_value = (value < text->number_min ? text->number_min :
1040 value > text->number_max ? text->number_max :
1043 sprintf(text->value, "%d", text->number_value);
1046 if (gi->type & GD_TYPE_TEXT_BUTTON)
1048 int font_nr = gi->font_active;
1049 int font_width = getFontWidth(font_nr);
1050 int font_height = getFontHeight(font_nr);
1051 int border_xsize = gi->border.xsize;
1052 int border_ysize = gi->border.ysize;
1054 gi->width = 2 * border_xsize + gi->textbutton.size * font_width;
1055 gi->height = 2 * border_ysize + font_height;
1058 if (gi->type & GD_TYPE_SCROLLBAR)
1060 struct GadgetScrollbar *gs = &gi->scrollbar;
1062 if (gi->width == 0 || gi->height == 0 ||
1063 gs->items_max == 0 || gs->items_visible == 0)
1064 Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
1066 /* calculate internal scrollbar values */
1067 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1068 gi->height : gi->width);
1069 gs->size = gs->size_max * gs->items_visible / gs->items_max;
1070 gs->position = gs->size_max * gs->item_position / gs->items_max;
1071 gs->position_max = gs->size_max - gs->size;
1072 gs->correction = gs->size_max / gs->items_max / 2;
1074 /* finetuning for maximal right/bottom position */
1075 if (gs->item_position == gs->items_max - gs->items_visible)
1076 gs->position = gs->position_max;
1079 if (gi->type & GD_TYPE_TEXT_AREA)
1081 int font_nr = gi->font_active;
1082 int font_width = getFontWidth(font_nr);
1083 int font_height = getFontHeight(font_nr);
1084 int border_xsize = gi->border.xsize;
1085 int border_ysize = gi->border.ysize;
1087 if (gi->width == 0 || gi->height == 0)
1089 gi->width = 2 * border_xsize + gi->textarea.xsize * font_width;
1090 gi->height = 2 * border_ysize + gi->textarea.ysize * font_height;
1094 gi->textarea.xsize = (gi->width - 2 * border_xsize) / font_width;
1095 gi->textarea.ysize = (gi->height - 2 * border_ysize) / font_height;
1100 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
1104 va_start(ap, first_tag);
1105 HandleGadgetTags(gi, first_tag, ap);
1111 void RedrawGadget(struct GadgetInfo *gi)
1114 DrawGadget(gi, gi->state, gi->direct_draw);
1117 struct GadgetInfo *CreateGadget(int first_tag, ...)
1119 struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
1122 /* always start with reliable default values */
1123 new_gadget->id = getNewGadgetID();
1124 new_gadget->callback_info = default_callback_info;
1125 new_gadget->callback_action = default_callback_action;
1126 new_gadget->active = TRUE;
1127 new_gadget->direct_draw = TRUE;
1129 new_gadget->next = NULL;
1131 va_start(ap, first_tag);
1132 HandleGadgetTags(new_gadget, first_tag, ap);
1135 /* insert new gadget into global gadget list */
1136 if (gadget_list_last_entry)
1138 gadget_list_last_entry->next = new_gadget;
1139 gadget_list_last_entry = gadget_list_last_entry->next;
1142 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
1147 void FreeGadget(struct GadgetInfo *gi)
1149 struct GadgetInfo *gi_previous = gadget_list_first_entry;
1151 while (gi_previous != NULL && gi_previous->next != gi)
1152 gi_previous = gi_previous->next;
1154 if (gi == gadget_list_first_entry)
1155 gadget_list_first_entry = gi->next;
1157 if (gi == gadget_list_last_entry)
1158 gadget_list_last_entry = gi_previous;
1160 if (gi_previous != NULL)
1161 gi_previous->next = gi->next;
1166 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
1168 if (gi->type != GD_TYPE_TEXT_INPUT_NUMERIC)
1171 gi->textinput.number_value = atoi(gi->textinput.value);
1173 if (gi->textinput.number_value < gi->textinput.number_min)
1174 gi->textinput.number_value = gi->textinput.number_min;
1175 if (gi->textinput.number_value > gi->textinput.number_max)
1176 gi->textinput.number_value = gi->textinput.number_max;
1178 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
1180 if (gi->textinput.cursor_position < 0)
1181 gi->textinput.cursor_position = 0;
1182 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1183 gi->textinput.cursor_position = strlen(gi->textinput.value);
1186 /* global pointer to gadget actually in use (when mouse button pressed) */
1187 static struct GadgetInfo *last_gi = NULL;
1189 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
1191 if (gi == NULL || gi->mapped)
1197 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
1200 void MapGadget(struct GadgetInfo *gi)
1202 MapGadgetExt(gi, TRUE);
1205 void UnmapGadget(struct GadgetInfo *gi)
1207 if (gi == NULL || !gi->mapped)
1216 #define MAX_NUM_GADGETS 1024
1217 #define MULTIMAP_UNMAP (1 << 0)
1218 #define MULTIMAP_REMAP (1 << 1)
1219 #define MULTIMAP_REDRAW (1 << 2)
1220 #define MULTIMAP_PLAYFIELD (1 << 3)
1221 #define MULTIMAP_DOOR_1 (1 << 4)
1222 #define MULTIMAP_DOOR_2 (1 << 5)
1223 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
1227 static void MultiMapGadgets(int mode)
1229 struct GadgetInfo *gi = gadget_list_first_entry;
1230 static boolean map_state[MAX_NUM_GADGETS];
1235 if ((mode & MULTIMAP_PLAYFIELD &&
1236 gi->x < gfx.sx + gfx.sxsize) ||
1237 (mode & MULTIMAP_DOOR_1 &&
1238 gi->x >= gfx.dx && gi->y < gfx.dy + gfx.dysize) ||
1239 (mode & MULTIMAP_DOOR_2 &&
1240 gi->x >= gfx.dx && gi->y > gfx.dy + gfx.dysize) ||
1241 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
1243 if (mode & MULTIMAP_UNMAP)
1245 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
1250 if (map_state[map_count++ % MAX_NUM_GADGETS])
1251 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
1259 void UnmapAllGadgets()
1261 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
1264 void RemapAllGadgets()
1266 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
1269 static boolean anyTextInputGadgetActive()
1271 return (last_gi && (last_gi->type & GD_TYPE_TEXT_INPUT) && last_gi->mapped);
1274 static boolean anyTextAreaGadgetActive()
1276 return (last_gi && (last_gi->type & GD_TYPE_TEXT_AREA) && last_gi->mapped);
1279 static boolean anySelectboxGadgetActive()
1281 return (last_gi && (last_gi->type & GD_TYPE_SELECTBOX) && last_gi->mapped);
1284 boolean anyTextGadgetActive()
1286 return (anyTextInputGadgetActive() ||
1287 anyTextAreaGadgetActive() ||
1288 anySelectboxGadgetActive());
1291 void ClickOnGadget(struct GadgetInfo *gi, int button)
1293 /* simulate releasing mouse button over last gadget, if still pressed */
1295 HandleGadgets(-1, -1, 0);
1297 /* simulate pressing mouse button over specified gadget */
1298 HandleGadgets(gi->x, gi->y, button);
1300 /* simulate releasing mouse button over specified gadget */
1301 HandleGadgets(gi->x, gi->y, 0);
1304 void HandleGadgets(int mx, int my, int button)
1306 static struct GadgetInfo *last_info_gi = NULL;
1307 static unsigned long pressed_delay = 0;
1308 static int last_button = 0;
1309 static int last_mx = 0, last_my = 0;
1310 int scrollbar_mouse_pos = 0;
1311 struct GadgetInfo *new_gi, *gi;
1312 boolean press_event;
1313 boolean release_event;
1314 boolean mouse_moving;
1315 boolean gadget_pressed;
1316 boolean gadget_pressed_repeated;
1317 boolean gadget_moving;
1318 boolean gadget_moving_inside;
1319 boolean gadget_moving_off_borders;
1320 boolean gadget_released;
1321 boolean gadget_released_inside;
1322 boolean gadget_released_inside_select_line;
1323 boolean gadget_released_inside_select_area;
1324 boolean gadget_released_off_borders;
1325 boolean changed_position = FALSE;
1327 /* check if there are any gadgets defined */
1328 if (gadget_list_first_entry == NULL)
1331 /* simulated release of mouse button over last gadget */
1332 if (mx == -1 && my == -1 && button == 0)
1338 /* check which gadget is under the mouse pointer */
1339 new_gi = getGadgetInfoFromMousePosition(mx, my);
1341 /* check if button state has changed since last invocation */
1342 press_event = (button != 0 && last_button == 0);
1343 release_event = (button == 0 && last_button != 0);
1344 last_button = button;
1346 /* check if mouse has been moved since last invocation */
1347 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
1351 /* if mouse button pressed outside text or selectbox gadget, deactivate it */
1352 if (anyTextGadgetActive() &&
1353 button != 0 && !motion_status && new_gi != last_gi)
1355 CheckRangeOfNumericInputGadget(last_gi); /* in case of numeric gadget */
1357 DrawGadget(last_gi, DG_UNPRESSED, last_gi->direct_draw);
1359 last_gi->event.type = GD_EVENT_TEXT_LEAVING;
1361 if (last_gi->event_mask & GD_EVENT_TEXT_LEAVING)
1362 last_gi->callback_action(last_gi);
1368 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
1369 gadget_pressed_repeated =
1370 (button != 0 && last_gi != NULL && new_gi == last_gi);
1372 gadget_released = (release_event && last_gi != NULL);
1373 gadget_released_inside = (gadget_released && new_gi == last_gi);
1374 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
1376 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
1377 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
1378 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
1380 /* when handling selectbox, set additional state values */
1381 if (gadget_released_inside && (last_gi->type & GD_TYPE_SELECTBOX))
1383 struct GadgetInfo *gi = last_gi;
1385 gadget_released_inside_select_line =
1386 (mx >= gi->x && mx < gi->x + gi->width &&
1387 my >= gi->y && my < gi->y + gi->height);
1388 gadget_released_inside_select_area =
1389 (mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
1390 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height);
1394 gadget_released_inside_select_line = FALSE;
1395 gadget_released_inside_select_area = FALSE;
1398 /* if new gadget pressed, store this gadget */
1402 /* 'gi' is actually handled gadget */
1405 /* if gadget is scrollbar, choose mouse position value */
1406 if (gi && gi->type & GD_TYPE_SCROLLBAR)
1407 scrollbar_mouse_pos =
1408 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
1410 /* if mouse button released, no gadget needs to be handled anymore */
1411 if (gadget_released)
1413 if (last_gi->type & GD_TYPE_SELECTBOX &&
1414 (gadget_released_inside_select_line ||
1415 gadget_released_off_borders)) /* selectbox stays open */
1416 gi->selectbox.stay_open = TRUE;
1417 else if (!(last_gi->type & GD_TYPE_TEXT_INPUT ||
1418 last_gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1422 /* modify event position values even if no gadget is pressed */
1423 if (button == 0 && !release_event)
1428 int last_x = gi->event.x;
1429 int last_y = gi->event.y;
1431 gi->event.x = mx - gi->x;
1432 gi->event.y = my - gi->y;
1434 if (gi->type == GD_TYPE_DRAWING_AREA)
1436 gi->event.x /= gi->drawing.item_xsize;
1437 gi->event.y /= gi->drawing.item_ysize;
1439 if (last_x != gi->event.x || last_y != gi->event.y)
1440 changed_position = TRUE;
1442 else if (gi->type & GD_TYPE_TEXT_INPUT && button != 0 && !motion_status)
1444 int old_cursor_position = gi->textinput.cursor_position;
1446 /* if mouse button pressed inside activated text gadget, set cursor */
1447 gi->textinput.cursor_position =
1448 (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1450 if (gi->textinput.cursor_position < 0)
1451 gi->textinput.cursor_position = 0;
1452 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1453 gi->textinput.cursor_position = strlen(gi->textinput.value);
1455 if (gi->textinput.cursor_position != old_cursor_position)
1456 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1458 else if (gi->type & GD_TYPE_TEXT_AREA && button != 0 && !motion_status)
1460 int old_cursor_position = gi->textarea.cursor_position;
1461 int x = (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1462 int y = (my - gi->y - gi->border.ysize) / getFontHeight(gi->font);
1464 x = (x < 0 ? 0 : x >= gi->textarea.xsize ? gi->textarea.xsize - 1 : x);
1465 y = (y < 0 ? 0 : y >= gi->textarea.ysize ? gi->textarea.ysize - 1 : y);
1467 setTextAreaCursorXY(gi, x, y);
1469 if (gi->textarea.cursor_position != old_cursor_position)
1470 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1472 else if (gi->type & GD_TYPE_SELECTBOX)
1474 int old_index = gi->selectbox.current_index;
1476 /* if mouse moving inside activated selectbox, select value */
1477 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1478 gi->selectbox.current_index =
1479 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1481 if (gi->selectbox.current_index < 0)
1482 gi->selectbox.current_index = 0;
1483 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1484 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1486 if (gi->selectbox.current_index != old_index)
1487 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1491 /* handle gadget popup info text */
1492 if (last_info_gi != new_gi ||
1493 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
1495 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
1497 new_gi->event.type = GD_EVENT_INFO_ENTERING;
1498 new_gi->callback_info(new_gi);
1500 else if (last_info_gi != NULL)
1502 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
1503 last_info_gi->callback_info(last_info_gi);
1506 last_info_gi = new_gi;
1511 if (gi->type == GD_TYPE_CHECK_BUTTON)
1513 gi->checked = !gi->checked;
1515 else if (gi->type == GD_TYPE_RADIO_BUTTON)
1517 struct GadgetInfo *rgi = gadget_list_first_entry;
1522 rgi->type == GD_TYPE_RADIO_BUTTON &&
1523 rgi->radio_nr == gi->radio_nr &&
1526 rgi->checked = FALSE;
1527 DrawGadget(rgi, DG_UNPRESSED, rgi->direct_draw);
1535 else if (gi->type & GD_TYPE_SCROLLBAR)
1539 if (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL)
1550 if (mpos >= gpos + gi->scrollbar.position &&
1551 mpos < gpos + gi->scrollbar.position + gi->scrollbar.size)
1553 /* drag scrollbar */
1554 gi->scrollbar.drag_position =
1555 scrollbar_mouse_pos - gi->scrollbar.position;
1559 /* click scrollbar one scrollbar length up/left or down/right */
1561 struct GadgetScrollbar *gs = &gi->scrollbar;
1562 int old_item_position = gs->item_position;
1564 changed_position = FALSE;
1566 gs->item_position +=
1567 gs->items_visible * (mpos < gpos + gi->scrollbar.position ? -1 : +1);
1569 if (gs->item_position < 0)
1570 gs->item_position = 0;
1571 if (gs->item_position > gs->items_max - gs->items_visible)
1572 gs->item_position = gs->items_max - gs->items_visible;
1574 if (old_item_position != gs->item_position)
1576 gi->event.item_position = gs->item_position;
1577 changed_position = TRUE;
1580 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
1583 gi->state = GD_BUTTON_UNPRESSED;
1584 gi->event.type = GD_EVENT_MOVING;
1585 gi->event.off_borders = FALSE;
1587 if (gi->event_mask & GD_EVENT_MOVING && changed_position)
1588 gi->callback_action(gi);
1590 /* don't handle this scrollbar anymore while mouse button pressed */
1597 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1599 gi->state = GD_BUTTON_PRESSED;
1600 gi->event.type = GD_EVENT_PRESSED;
1601 gi->event.button = button;
1602 gi->event.off_borders = FALSE;
1604 /* initialize delay counter */
1605 DelayReached(&pressed_delay, 0);
1607 if (gi->event_mask & GD_EVENT_PRESSED)
1608 gi->callback_action(gi);
1611 if (gadget_pressed_repeated)
1613 gi->event.type = GD_EVENT_PRESSED;
1615 if (gi->event_mask & GD_EVENT_REPEATED &&
1616 DelayReached(&pressed_delay, GADGET_FRAME_DELAY))
1617 gi->callback_action(gi);
1622 if (gi->type & GD_TYPE_BUTTON)
1624 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
1625 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1626 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
1627 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1629 else if (gi->type & GD_TYPE_SELECTBOX)
1631 int old_index = gi->selectbox.current_index;
1633 /* if mouse moving inside activated selectbox, select value */
1634 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1635 gi->selectbox.current_index =
1636 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1638 if (gi->selectbox.current_index < 0)
1639 gi->selectbox.current_index = 0;
1640 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1641 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1643 if (gi->selectbox.current_index != old_index)
1644 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1646 else if (gi->type & GD_TYPE_SCROLLBAR)
1648 struct GadgetScrollbar *gs = &gi->scrollbar;
1649 int old_item_position = gs->item_position;
1651 gs->position = scrollbar_mouse_pos - gs->drag_position;
1653 if (gs->position < 0)
1655 if (gs->position > gs->position_max)
1656 gs->position = gs->position_max;
1659 gs->items_max * (gs->position + gs->correction) / gs->size_max;
1661 if (gs->item_position < 0)
1662 gs->item_position = 0;
1663 if (gs->item_position > gs->items_max - 1)
1664 gs->item_position = gs->items_max - 1;
1666 if (old_item_position != gs->item_position)
1668 gi->event.item_position = gs->item_position;
1669 changed_position = TRUE;
1672 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1675 gi->state = (gadget_moving_inside || gi->type & GD_TYPE_SCROLLBAR ?
1676 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
1677 gi->event.type = GD_EVENT_MOVING;
1678 gi->event.off_borders = gadget_moving_off_borders;
1680 if (gi->event_mask & GD_EVENT_MOVING && changed_position &&
1681 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
1682 gi->callback_action(gi);
1685 if (gadget_released_inside)
1687 boolean deactivate_gadget = TRUE;
1689 if (gi->type & GD_TYPE_SELECTBOX)
1691 if (gadget_released_inside_select_line ||
1692 gadget_released_off_borders) /* selectbox stays open */
1693 deactivate_gadget = FALSE;
1695 gi->selectbox.index = gi->selectbox.current_index;
1698 if (deactivate_gadget &&
1699 !(gi->type & GD_TYPE_TEXT_INPUT ||
1700 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1701 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1703 gi->state = GD_BUTTON_UNPRESSED;
1704 gi->event.type = GD_EVENT_RELEASED;
1706 if ((gi->event_mask & GD_EVENT_RELEASED) && deactivate_gadget)
1707 gi->callback_action(gi);
1710 if (gadget_released_off_borders)
1712 if (gi->type & GD_TYPE_SCROLLBAR)
1713 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1715 gi->event.type = GD_EVENT_RELEASED;
1717 if (gi->event_mask & GD_EVENT_RELEASED &&
1718 gi->event_mask & GD_EVENT_OFF_BORDERS)
1719 gi->callback_action(gi);
1722 /* handle gadgets unmapped/mapped between pressing and releasing */
1723 if (release_event && !gadget_released && new_gi)
1724 new_gi->state = GD_BUTTON_UNPRESSED;
1727 static void insertCharIntoTextArea(struct GadgetInfo *gi, char c)
1729 char text[MAX_GADGET_TEXTSIZE];
1730 int cursor_position = gi->textarea.cursor_position;
1732 if (strlen(gi->textarea.value) == MAX_GADGET_TEXTSIZE) /* no space left */
1735 strcpy(text, gi->textarea.value);
1736 strcpy(&gi->textarea.value[cursor_position + 1], &text[cursor_position]);
1737 gi->textarea.value[cursor_position] = c;
1739 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
1742 void HandleGadgetsKeyInput(Key key)
1744 struct GadgetInfo *gi = last_gi;
1746 if (gi == NULL || !gi->mapped ||
1747 !(gi->type & GD_TYPE_TEXT_INPUT ||
1748 gi->type & GD_TYPE_TEXT_AREA ||
1749 gi->type & GD_TYPE_SELECTBOX))
1752 if (key == KSYM_Return) /* valid for both text input and selectbox */
1754 if (gi->type & GD_TYPE_TEXT_INPUT)
1755 CheckRangeOfNumericInputGadget(gi);
1756 else if (gi->type & GD_TYPE_SELECTBOX)
1757 gi->selectbox.index = gi->selectbox.current_index;
1759 if (gi->type & GD_TYPE_TEXT_AREA)
1761 insertCharIntoTextArea(gi, '\n');
1763 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1767 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1769 gi->event.type = GD_EVENT_TEXT_RETURN;
1774 if (gi->event_mask & GD_EVENT_TEXT_RETURN)
1775 gi->callback_action(gi);
1777 else if (gi->type & GD_TYPE_TEXT_INPUT) /* only valid for text input */
1779 char text[MAX_GADGET_TEXTSIZE];
1780 int text_length = strlen(gi->textinput.value);
1781 int cursor_pos = gi->textinput.cursor_position;
1782 char letter = getCharFromKey(key);
1783 boolean legal_letter = (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC ?
1784 letter >= '0' && letter <= '9' :
1787 if (legal_letter && text_length < gi->textinput.size)
1789 strcpy(text, gi->textinput.value);
1790 strcpy(&gi->textinput.value[cursor_pos + 1], &text[cursor_pos]);
1791 gi->textinput.value[cursor_pos] = letter;
1792 gi->textinput.cursor_position++;
1794 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1796 else if (key == KSYM_Left && cursor_pos > 0)
1798 gi->textinput.cursor_position--;
1800 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1802 else if (key == KSYM_Right && cursor_pos < text_length)
1804 gi->textinput.cursor_position++;
1806 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1808 else if (key == KSYM_BackSpace && cursor_pos > 0)
1810 strcpy(text, gi->textinput.value);
1811 strcpy(&gi->textinput.value[cursor_pos - 1], &text[cursor_pos]);
1812 gi->textinput.cursor_position--;
1814 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1816 else if (key == KSYM_Delete && cursor_pos < text_length)
1818 strcpy(text, gi->textinput.value);
1819 strcpy(&gi->textinput.value[cursor_pos], &text[cursor_pos + 1]);
1821 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1824 else if (gi->type & GD_TYPE_TEXT_AREA) /* only valid for text area */
1826 char text[MAX_GADGET_TEXTSIZE];
1827 int text_length = strlen(gi->textarea.value);
1828 int area_ysize = gi->textarea.ysize;
1829 int cursor_x_pref = gi->textarea.cursor_x_preferred;
1830 int cursor_y = gi->textarea.cursor_y;
1831 int cursor_pos = gi->textarea.cursor_position;
1832 char letter = getCharFromKey(key);
1833 boolean legal_letter = (letter != 0);
1837 insertCharIntoTextArea(gi, letter);
1839 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1841 else if (key == KSYM_Left && cursor_pos > 0)
1843 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
1845 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1847 else if (key == KSYM_Right && cursor_pos < text_length)
1849 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
1851 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1853 else if (key == KSYM_Up && cursor_y > 0)
1855 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y - 1);
1856 gi->textarea.cursor_x_preferred = cursor_x_pref;
1858 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1860 else if (key == KSYM_Down && cursor_y < area_ysize - 1)
1862 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y + 1);
1863 gi->textarea.cursor_x_preferred = cursor_x_pref;
1865 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1867 else if (key == KSYM_BackSpace && cursor_pos > 0)
1869 strcpy(text, gi->textarea.value);
1870 strcpy(&gi->textarea.value[cursor_pos - 1], &text[cursor_pos]);
1872 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
1874 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1876 else if (key == KSYM_Delete && cursor_pos < text_length)
1878 strcpy(text, gi->textarea.value);
1879 strcpy(&gi->textarea.value[cursor_pos], &text[cursor_pos + 1]);
1881 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1884 else if (gi->type & GD_TYPE_SELECTBOX) /* only valid for selectbox */
1886 int index = gi->selectbox.current_index;
1887 int num_values = gi->selectbox.num_values;
1889 if (key == KSYM_Up && index > 0)
1891 gi->selectbox.current_index--;
1893 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1895 else if (key == KSYM_Down && index < num_values - 1)
1897 gi->selectbox.current_index++;
1899 DrawGadget(gi, DG_PRESSED, gi->direct_draw);