1 // ============================================================================
2 // Artsoft Retro-Game Library
3 // ----------------------------------------------------------------------------
4 // (c) 1995-2014 by Artsoft Entertainment
7 // http://www.artsoft.org/
8 // ----------------------------------------------------------------------------
10 // ============================================================================
21 /* values for DrawGadget() */
22 #define DG_UNPRESSED 0
28 #define OPTION_TEXT_SELECTABLE(g, t) \
29 (t[0] != g->selectbox.char_unselectable && \
32 #define CURRENT_OPTION_SELECTABLE(g) \
33 OPTION_TEXT_SELECTABLE(g, g->selectbox.options[g->selectbox.current_index].text)
36 static struct GadgetInfo *gadget_list_first_entry = NULL;
37 static struct GadgetInfo *gadget_list_last_entry = NULL;
38 static struct GadgetInfo *last_info_gi = NULL;
39 static int next_free_gadget_id = 1;
40 static boolean gadget_id_wrapped = FALSE;
42 static void (*PlayGadgetSoundActivating)(void) = NULL;
43 static void (*PlayGadgetSoundSelecting)(void) = NULL;
46 void InitGadgetsSoundCallback(void (*activating_function)(void),
47 void (*selecting_function)(void))
49 PlayGadgetSoundActivating = activating_function;
50 PlayGadgetSoundSelecting = selecting_function;
53 static struct GadgetInfo *getGadgetInfoFromGadgetID(int id)
55 struct GadgetInfo *gi = gadget_list_first_entry;
57 while (gi && gi->id != id)
63 static int getNewGadgetID(void)
65 int id = next_free_gadget_id++;
67 if (next_free_gadget_id <= 0) /* counter overrun */
69 gadget_id_wrapped = TRUE; /* now we must check each ID */
70 next_free_gadget_id = 0;
73 if (gadget_id_wrapped)
75 next_free_gadget_id++;
76 while (getGadgetInfoFromGadgetID(next_free_gadget_id) != NULL)
77 next_free_gadget_id++;
80 if (next_free_gadget_id <= 0) /* cannot get new gadget id */
81 Error(ERR_EXIT, "too much gadgets -- this should not happen");
86 static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my,
89 struct GadgetInfo *gi;
91 /* first check for scrollbars in case of mouse scroll wheel button events */
92 if (IS_WHEEL_BUTTON(button))
94 /* real horizontal wheel or vertical wheel with modifier key pressed */
95 boolean check_horizontal = (IS_WHEEL_BUTTON_HORIZONTAL(button) ||
96 GetKeyModState() & KMOD_Shift);
98 /* check for the first active scrollbar directly under the mouse pointer */
99 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
101 if (gi->mapped && gi->active &&
102 (gi->type & GD_TYPE_SCROLLBAR) &&
103 mx >= gi->x && mx < gi->x + gi->width &&
104 my >= gi->y && my < gi->y + gi->height)
108 /* check for the first active scrollbar with matching mouse wheel area */
109 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
111 if (gi->mapped && gi->active &&
112 ((gi->type & GD_TYPE_SCROLLBAR_HORIZONTAL && check_horizontal) ||
113 (gi->type & GD_TYPE_SCROLLBAR_VERTICAL && !check_horizontal)) &&
114 mx >= gi->wheelarea.x && mx < gi->wheelarea.x + gi->wheelarea.width &&
115 my >= gi->wheelarea.y && my < gi->wheelarea.y + gi->wheelarea.height)
119 /* no active scrollbar found -- ignore this scroll wheel button event */
123 /* open selectboxes may overlap other active gadgets, so check them first */
124 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
126 if (gi->mapped && gi->active &&
127 gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
128 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
129 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
133 /* check all other gadgets */
134 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
136 if (gi->mapped && gi->active &&
137 mx >= gi->x && mx < gi->x + gi->width &&
138 my >= gi->y && my < gi->y + gi->height)
145 static void setTextAreaCursorExt(struct GadgetInfo *gi, boolean set_cursor_pos)
147 char *text = gi->textarea.value;
148 int area_xsize = gi->textarea.xsize;
149 int area_ysize = gi->textarea.ysize;
150 int cursor_position = gi->textarea.cursor_position;
151 int cursor_x = gi->textarea.cursor_x;
152 int cursor_y = gi->textarea.cursor_y;
159 if (set_cursor_pos) /* x/y => position */
161 if (y == cursor_y && (x == cursor_x || (x < cursor_x && *text == '\n')))
164 else /* position => x/y */
166 if (pos == cursor_position)
170 if (x + 1 >= area_xsize || *text == '\n')
172 if (y + 1 >= area_ysize)
185 gi->textarea.cursor_x = x;
186 gi->textarea.cursor_y = y;
187 gi->textarea.cursor_x_preferred = x;
188 gi->textarea.cursor_position = pos;
191 static void setTextAreaCursorXY(struct GadgetInfo *gi, int x, int y)
193 gi->textarea.cursor_x = x;
194 gi->textarea.cursor_y = y;
196 setTextAreaCursorExt(gi, TRUE);
199 static void setTextAreaCursorPosition(struct GadgetInfo *gi, int pos)
201 gi->textarea.cursor_position = pos;
203 setTextAreaCursorExt(gi, FALSE);
206 static void default_callback_info(void *ptr)
211 static void default_callback_action(void *ptr)
216 static void DrawGadget(struct GadgetInfo *gi, boolean pressed, boolean direct)
218 struct GadgetDesign *gd;
219 int state = (pressed ? GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
220 boolean redraw_selectbox = FALSE;
222 if (gi == NULL || gi->deactivated)
225 gd = (!gi->active ? &gi->alt_design[state] :
226 gi->checked ? &gi->alt_design[state] : &gi->design[state]);
230 case GD_TYPE_NORMAL_BUTTON:
231 case GD_TYPE_CHECK_BUTTON:
232 case GD_TYPE_RADIO_BUTTON:
234 BlitBitmapOnBackground(gd->bitmap, drawto,
235 gd->x, gd->y, gi->width, gi->height,
238 if (gi->deco.design.bitmap)
240 // make sure that decoration does not overlap gadget border
241 int deco_x = gi->deco.x + (pressed ? gi->deco.xshift : 0);
242 int deco_y = gi->deco.y + (pressed ? gi->deco.yshift : 0);
243 int deco_width = MIN(gi->deco.width, gi->width - deco_x);
244 int deco_height = MIN(gi->deco.height, gi->height - deco_y);
247 BlitBitmapMasked(gi->deco.design.bitmap, drawto,
248 gi->deco.design.x, gi->deco.design.y,
249 deco_width, deco_height,
250 gi->x + deco_x, gi->y + deco_y);
252 BlitBitmap(gi->deco.design.bitmap, drawto,
253 gi->deco.design.x, gi->deco.design.y,
254 deco_width, deco_height,
255 gi->x + deco_x, gi->y + deco_y);
260 case GD_TYPE_TEXT_BUTTON:
263 int font_nr = (gi->active ? gi->font_active : gi->font);
264 int font_width = getFontWidth(font_nr);
265 int border_x = gi->border.xsize;
266 int border_y = gi->border.ysize;
267 int text_size = strlen(gi->textbutton.value);
268 int text_start = (gi->width - text_size * font_width) / 2;
270 /* left part of gadget */
271 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
272 border_x, gi->height, gi->x, gi->y);
274 /* middle part of gadget */
275 for (i=0; i < gi->textbutton.size; i++)
276 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
277 font_width, gi->height,
278 gi->x + border_x + i * font_width, gi->y);
280 /* right part of gadget */
281 BlitBitmapOnBackground(gd->bitmap, drawto,
282 gd->x + gi->border.width - border_x, gd->y,
283 border_x, gi->height,
284 gi->x + gi->width - border_x, gi->y);
286 /* gadget text value */
288 gi->x + text_start + (pressed ? gi->deco.xshift : 0),
289 gi->y + border_y + (pressed ? gi->deco.yshift : 0),
290 gi->textbutton.value, font_nr, BLIT_MASKED);
294 case GD_TYPE_TEXT_INPUT_ALPHANUMERIC:
295 case GD_TYPE_TEXT_INPUT_NUMERIC:
299 char cursor_string[2];
300 char text[MAX_GADGET_TEXTSIZE + 1];
301 int font_nr = (pressed ? gi->font_active : gi->font);
302 int font_width = getFontWidth(font_nr);
303 int border_x = gi->border.xsize;
304 int border_y = gi->border.ysize;
306 /* left part of gadget */
307 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
308 border_x, gi->height, gi->x, gi->y);
310 /* middle part of gadget */
311 for (i=0; i < gi->textinput.size + 1; i++)
312 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
313 font_width, gi->height,
314 gi->x + border_x + i * font_width, gi->y);
316 /* right part of gadget */
317 BlitBitmapOnBackground(gd->bitmap, drawto,
318 gd->x + gi->border.width - border_x, gd->y,
319 border_x, gi->height,
320 gi->x + gi->width - border_x, gi->y);
323 strcpy(text, gi->textinput.value);
326 /* gadget text value */
328 gi->x + border_x, gi->y + border_y, text,
329 font_nr, BLIT_MASKED);
331 cursor_letter = gi->textinput.value[gi->textinput.cursor_position];
332 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
333 cursor_string[1] = '\0';
335 /* draw cursor, if active */
339 gi->textinput.cursor_position * font_width,
340 gi->y + border_y, cursor_string,
341 font_nr, BLIT_INVERSE);
345 case GD_TYPE_TEXT_AREA:
349 char cursor_string[2];
350 int font_nr = (pressed ? gi->font_active : gi->font);
351 int font_width = getFontWidth(font_nr);
352 int font_height = getFontHeight(font_nr);
353 int border_x = gi->border.xsize;
354 int border_y = gi->border.ysize;
355 int gd_height = 2 * border_y + font_height;
357 /* top left part of gadget border */
358 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
359 border_x, border_y, gi->x, gi->y);
361 /* top middle part of gadget border */
362 for (i=0; i < gi->textarea.xsize; i++)
363 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
364 font_width, border_y,
365 gi->x + border_x + i * font_width, gi->y);
367 /* top right part of gadget border */
368 BlitBitmapOnBackground(gd->bitmap, drawto,
369 gd->x + gi->border.width - border_x, gd->y,
371 gi->x + gi->width - border_x, gi->y);
373 /* left and right part of gadget border for each row */
374 for (i=0; i < gi->textarea.ysize; i++)
376 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
377 border_x, font_height,
378 gi->x, gi->y + border_y + i * font_height);
379 BlitBitmapOnBackground(gd->bitmap, drawto,
380 gd->x + gi->border.width - border_x,
382 border_x, font_height,
383 gi->x + gi->width - border_x,
384 gi->y + border_y + i * font_height);
387 /* bottom left part of gadget border */
388 BlitBitmapOnBackground(gd->bitmap, drawto,
389 gd->x, gd->y + gd_height - border_y,
391 gi->x, gi->y + gi->height - border_y);
393 /* bottom middle part of gadget border */
394 for (i=0; i < gi->textarea.xsize; i++)
395 BlitBitmapOnBackground(gd->bitmap, drawto,
397 gd->y + gd_height - border_y,
398 font_width, border_y,
399 gi->x + border_x + i * font_width,
400 gi->y + gi->height - border_y);
402 /* bottom right part of gadget border */
403 BlitBitmapOnBackground(gd->bitmap, drawto,
404 gd->x + gi->border.width - border_x,
405 gd->y + gd_height - border_y,
407 gi->x + gi->width - border_x,
408 gi->y + gi->height - border_y);
410 ClearRectangleOnBackground(drawto,
413 gi->width - 2 * border_x,
414 gi->height - 2 * border_y);
416 /* gadget text value */
417 DrawTextBuffer(gi->x + border_x, gi->y + border_y, gi->textarea.value,
418 font_nr, gi->textarea.xsize, -1, gi->textarea.ysize, 0,
419 BLIT_ON_BACKGROUND, FALSE, FALSE, FALSE);
421 cursor_letter = gi->textarea.value[gi->textarea.cursor_position];
422 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
423 cursor_string[1] = '\0';
425 /* draw cursor, if active */
428 gi->x + border_x + gi->textarea.cursor_x * font_width,
429 gi->y + border_y + gi->textarea.cursor_y * font_height,
431 font_nr, BLIT_INVERSE);
435 case GD_TYPE_SELECTBOX:
438 char text[MAX_GADGET_TEXTSIZE + 1];
439 int font_nr_default = (pressed ? gi->font_active : gi->font);
440 int font_nr = font_nr_default;
441 int font_width = getFontWidth(font_nr);
442 int font_height = getFontHeight(font_nr);
443 int border_x = gi->border.xsize;
444 int border_y = gi->border.ysize;
445 int button = gi->border.xsize_selectbutton;
446 int width_inner = gi->border.width - button - 2 * border_x;
447 int box_width = gi->selectbox.width;
448 int box_height = gi->selectbox.height;
450 /* left part of gadget */
451 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
452 border_x, gi->height, gi->x, gi->y);
454 /* middle part of gadget */
455 for (i=0; i < gi->selectbox.size; i++)
456 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
457 font_width, gi->height,
458 gi->x + border_x + i * font_width, gi->y);
460 /* button part of gadget */
461 BlitBitmapOnBackground(gd->bitmap, drawto,
462 gd->x + border_x + width_inner, gd->y,
464 gi->x + gi->width - border_x - button, gi->y);
466 /* right part of gadget */
467 BlitBitmapOnBackground(gd->bitmap, drawto,
468 gd->x + gi->border.width - border_x, gd->y,
469 border_x, gi->height,
470 gi->x + gi->width - border_x, gi->y);
473 strncpy(text, gi->selectbox.options[gi->selectbox.index].text,
475 text[gi->selectbox.size] = '\0';
478 font_nr = (OPTION_TEXT_SELECTABLE(gi, text) ? font_nr_default :
479 gi->font_unselectable);
481 /* gadget text value */
482 DrawTextExt(drawto, gi->x + border_x, gi->y + border_y, text,
483 font_nr, BLIT_MASKED);
487 if (!gi->selectbox.open)
489 gi->selectbox.open = TRUE;
490 gi->selectbox.stay_open = FALSE;
491 gi->selectbox.current_index = gi->selectbox.index;
493 /* save background under selectbox */
494 BlitBitmap(drawto, gfx.field_save_buffer,
495 gi->selectbox.x, gi->selectbox.y,
496 gi->selectbox.width, gi->selectbox.height,
497 gi->selectbox.x, gi->selectbox.y);
500 /* draw open selectbox */
502 /* top left part of gadget border */
503 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
505 gi->selectbox.x, gi->selectbox.y);
507 /* top middle part of gadget border */
508 for (i=0; i < gi->selectbox.size; i++)
509 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
510 font_width, border_y,
511 gi->selectbox.x + border_x + i * font_width,
514 /* top button part of gadget border */
515 BlitBitmapOnBackground(gd->bitmap, drawto,
516 gd->x + border_x + width_inner, gd->y,
518 gi->selectbox.x + box_width -border_x -button,
521 /* top right part of gadget border */
522 BlitBitmapOnBackground(gd->bitmap, drawto,
523 gd->x + gi->border.width - border_x, gd->y,
525 gi->selectbox.x + box_width - border_x,
528 /* left and right part of gadget border for each row */
529 for (i=0; i < gi->selectbox.num_values; i++)
531 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
532 border_x, font_height,
534 gi->selectbox.y + border_y + i*font_height);
535 BlitBitmapOnBackground(gd->bitmap, drawto,
536 gd->x + gi->border.width - border_x,
538 border_x, font_height,
539 gi->selectbox.x + box_width - border_x,
540 gi->selectbox.y + border_y + i*font_height);
543 /* bottom left part of gadget border */
544 BlitBitmapOnBackground(gd->bitmap, drawto,
545 gd->x, gd->y + gi->height - border_y,
548 gi->selectbox.y + box_height - border_y);
550 /* bottom middle part of gadget border */
551 for (i=0; i < gi->selectbox.size; i++)
552 BlitBitmapOnBackground(gd->bitmap, drawto,
554 gd->y + gi->height - border_y,
555 font_width, border_y,
556 gi->selectbox.x + border_x + i * font_width,
557 gi->selectbox.y + box_height - border_y);
559 /* bottom button part of gadget border */
560 BlitBitmapOnBackground(gd->bitmap, drawto,
561 gd->x + border_x + width_inner,
562 gd->y + gi->height - border_y,
564 gi->selectbox.x + box_width -border_x -button,
565 gi->selectbox.y + box_height - border_y);
567 /* bottom right part of gadget border */
568 BlitBitmapOnBackground(gd->bitmap, drawto,
569 gd->x + gi->border.width - border_x,
570 gd->y + gi->height - border_y,
572 gi->selectbox.x + box_width - border_x,
573 gi->selectbox.y + box_height - border_y);
575 ClearRectangleOnBackground(drawto,
576 gi->selectbox.x + border_x,
577 gi->selectbox.y + border_y,
578 gi->selectbox.width - 2 * border_x,
579 gi->selectbox.height - 2 * border_y);
581 /* selectbox text values */
582 for (i=0; i < gi->selectbox.num_values; i++)
584 int mask_mode = BLIT_MASKED;
586 strncpy(text, gi->selectbox.options[i].text, gi->selectbox.size);
587 text[gi->selectbox.size] = '\0';
589 font_nr = (OPTION_TEXT_SELECTABLE(gi, text) ? font_nr_default :
590 gi->font_unselectable);
592 if (i == gi->selectbox.current_index &&
593 OPTION_TEXT_SELECTABLE(gi, text))
595 FillRectangle(drawto,
596 gi->selectbox.x + border_x,
597 gi->selectbox.y + border_y + i * font_height,
598 gi->selectbox.width - 2 * border_x, font_height,
599 gi->selectbox.inverse_color);
601 /* prevent use of cursor graphic by drawing at least two chars */
603 text[gi->selectbox.size] = '\0';
605 mask_mode = BLIT_INVERSE;
609 gi->selectbox.x + border_x,
610 gi->selectbox.y + border_y + i * font_height, text,
614 redraw_selectbox = TRUE;
616 else if (gi->selectbox.open)
618 gi->selectbox.open = FALSE;
620 /* restore background under selectbox */
621 BlitBitmap(gfx.field_save_buffer, drawto,
622 gi->selectbox.x, gi->selectbox.y,
623 gi->selectbox.width, gi->selectbox.height,
624 gi->selectbox.x, gi->selectbox.y);
626 /* redraw closed selectbox */
627 DrawGadget(gi, FALSE, FALSE);
629 redraw_selectbox = TRUE;
634 case GD_TYPE_SCROLLBAR_VERTICAL:
638 int ypos = gi->y + gi->scrollbar.position;
639 int design_full = gi->width;
640 int design_body = design_full - 2 * gi->border.ysize;
641 int size_full = gi->scrollbar.size;
642 int size_body = size_full - 2 * gi->border.ysize;
643 int num_steps = size_body / design_body;
644 int step_size_remain = size_body - num_steps * design_body;
646 /* clear scrollbar area */
647 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
648 gi->width, gi->height);
650 /* upper part of gadget */
651 BlitBitmapOnBackground(gd->bitmap, drawto,
653 gi->width, gi->border.ysize,
656 /* middle part of gadget */
657 for (i=0; i < num_steps; i++)
658 BlitBitmapOnBackground(gd->bitmap, drawto,
659 gd->x, gd->y + gi->border.ysize,
660 gi->width, design_body,
662 ypos + gi->border.ysize + i * design_body);
664 /* remaining middle part of gadget */
665 if (step_size_remain > 0)
666 BlitBitmapOnBackground(gd->bitmap, drawto,
667 gd->x, gd->y + gi->border.ysize,
668 gi->width, step_size_remain,
670 ypos + gi->border.ysize
671 + num_steps * design_body);
673 /* lower part of gadget */
674 BlitBitmapOnBackground(gd->bitmap, drawto,
675 gd->x, gd->y + design_full - gi->border.ysize,
676 gi->width, gi->border.ysize,
677 xpos, ypos + size_full - gi->border.ysize);
681 case GD_TYPE_SCROLLBAR_HORIZONTAL:
684 int xpos = gi->x + gi->scrollbar.position;
686 int design_full = gi->height;
687 int design_body = design_full - 2 * gi->border.xsize;
688 int size_full = gi->scrollbar.size;
689 int size_body = size_full - 2 * gi->border.xsize;
690 int num_steps = size_body / design_body;
691 int step_size_remain = size_body - num_steps * design_body;
693 /* clear scrollbar area */
694 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
695 gi->width, gi->height);
697 /* left part of gadget */
698 BlitBitmapOnBackground(gd->bitmap, drawto,
700 gi->border.xsize, gi->height,
703 /* middle part of gadget */
704 for (i=0; i < num_steps; i++)
705 BlitBitmapOnBackground(gd->bitmap, drawto,
706 gd->x + gi->border.xsize, gd->y,
707 design_body, gi->height,
708 xpos + gi->border.xsize + i * design_body,
711 /* remaining middle part of gadget */
712 if (step_size_remain > 0)
713 BlitBitmapOnBackground(gd->bitmap, drawto,
714 gd->x + gi->border.xsize, gd->y,
715 step_size_remain, gi->height,
716 xpos + gi->border.xsize
717 + num_steps * design_body,
720 /* right part of gadget */
721 BlitBitmapOnBackground(gd->bitmap, drawto,
722 gd->x + design_full - gi->border.xsize, gd->y,
723 gi->border.xsize, gi->height,
724 xpos + size_full - gi->border.xsize, ypos);
732 // do not use direct gadget drawing anymore; this worked as a speed-up once,
733 // but would slow things down a lot now the screen is always fully redrawn
738 BlitBitmap(drawto, window,
739 gi->x, gi->y, gi->width, gi->height, gi->x, gi->y);
741 if (gi->type == GD_TYPE_SELECTBOX && redraw_selectbox)
742 BlitBitmap(drawto, window,
743 gi->selectbox.x, gi->selectbox.y,
744 gi->selectbox.width, gi->selectbox.height,
745 gi->selectbox.x, gi->selectbox.y);
752 redraw_mask |= (IN_GFX_FIELD_FULL(x, y) ? REDRAW_FIELD :
753 IN_GFX_DOOR_1(x, y) ? REDRAW_DOOR_1 :
754 IN_GFX_DOOR_2(x, y) ? REDRAW_DOOR_2 :
755 IN_GFX_DOOR_3(x, y) ? REDRAW_DOOR_3 : REDRAW_ALL);
759 static int get_minimal_size_for_numeric_input(int minmax_value)
761 int min_size = 1; /* value needs at least one digit */
764 /* add number of digits needed for absolute value */
765 for (i = 10; i <= ABS(minmax_value); i *= 10)
768 /* if min/max value is negative, add one digit for minus sign */
769 if (minmax_value < 0)
775 static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
779 if (gi == NULL || gi->deactivated)
782 while (tag != GDI_END)
787 gi->image_id = va_arg(ap, int);
791 gi->custom_id = va_arg(ap, int);
794 case GDI_CUSTOM_TYPE_ID:
795 gi->custom_type_id = va_arg(ap, int);
800 int max_textsize = MAX_INFO_TEXTSIZE;
801 char *text = va_arg(ap, char *);
804 strncpy(gi->info_text, text, max_textsize);
808 gi->info_text[max_textsize] = '\0';
813 gi->x = va_arg(ap, int);
817 gi->y = va_arg(ap, int);
821 gi->width = va_arg(ap, int);
825 gi->height = va_arg(ap, int);
829 gi->type = va_arg(ap, unsigned int);
833 gi->state = va_arg(ap, unsigned int);
837 gi->active = (boolean)va_arg(ap, int);
840 case GDI_DIRECT_DRAW:
841 gi->direct_draw = (boolean)va_arg(ap, int);
845 gi->checked = (boolean)va_arg(ap, int);
849 gi->radio_nr = va_arg(ap, unsigned int);
852 case GDI_NUMBER_VALUE:
853 gi->textinput.number_value = va_arg(ap, int);
854 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
855 strcpy(gi->textinput.last_value, gi->textinput.value);
856 gi->textinput.cursor_position = strlen(gi->textinput.value);
860 gi->textinput.number_min = va_arg(ap, int);
861 if (gi->textinput.number_value < gi->textinput.number_min)
863 gi->textinput.number_value = gi->textinput.number_min;
864 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
865 strcpy(gi->textinput.last_value, gi->textinput.value);
870 gi->textinput.number_max = va_arg(ap, int);
871 if (gi->textinput.number_value > gi->textinput.number_max)
873 gi->textinput.number_value = gi->textinput.number_max;
874 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
875 strcpy(gi->textinput.last_value, gi->textinput.value);
881 int max_textsize = MAX_GADGET_TEXTSIZE;
883 if (gi->textinput.size)
884 max_textsize = MIN(gi->textinput.size, MAX_GADGET_TEXTSIZE);
886 strncpy(gi->textinput.value, va_arg(ap, char *), max_textsize);
887 strcpy(gi->textinput.last_value, gi->textinput.value);
889 gi->textinput.value[max_textsize] = '\0';
890 gi->textinput.cursor_position = strlen(gi->textinput.value);
892 /* same tag also used for other gadget definitions */
893 strcpy(gi->textbutton.value, gi->textinput.value);
894 strcpy(gi->textarea.value, gi->textinput.value);
895 strcpy(gi->textarea.last_value, gi->textinput.value);
901 int tag_value = va_arg(ap, int);
902 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE);
904 gi->textinput.size = max_textsize;
905 gi->textinput.value[max_textsize] = '\0';
906 strcpy(gi->textinput.last_value, gi->textinput.value);
908 /* same tag also used for other gadget definitions */
910 gi->textarea.size = max_textsize;
911 gi->textarea.value[max_textsize] = '\0';
912 strcpy(gi->textarea.last_value, gi->textinput.value);
914 gi->textbutton.size = max_textsize;
915 gi->textbutton.value[max_textsize] = '\0';
917 gi->selectbox.size = gi->textinput.size;
922 gi->font = va_arg(ap, int);
923 if (gi->font_active == 0)
924 gi->font_active = gi->font;
925 if (gi->font_unselectable == 0)
926 gi->font_unselectable = gi->font;
929 case GDI_TEXT_FONT_ACTIVE:
930 gi->font_active = va_arg(ap, int);
933 case GDI_TEXT_FONT_UNSELECTABLE:
934 gi->font_unselectable = va_arg(ap, int);
937 case GDI_SELECTBOX_OPTIONS:
938 gi->selectbox.options = va_arg(ap, struct ValueTextInfo *);
941 case GDI_SELECTBOX_INDEX:
942 gi->selectbox.index = va_arg(ap, int);
945 case GDI_SELECTBOX_CHAR_UNSELECTABLE:
946 gi->selectbox.char_unselectable = (char)va_arg(ap, int);
949 case GDI_DESIGN_UNPRESSED:
950 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
951 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
952 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
955 case GDI_DESIGN_PRESSED:
956 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
957 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
958 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
961 case GDI_ALT_DESIGN_UNPRESSED:
962 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
963 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
964 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
967 case GDI_ALT_DESIGN_PRESSED:
968 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
969 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
970 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
973 case GDI_BORDER_SIZE:
974 gi->border.xsize = va_arg(ap, int);
975 gi->border.ysize = va_arg(ap, int);
978 case GDI_BORDER_SIZE_SELECTBUTTON:
979 gi->border.xsize_selectbutton = va_arg(ap, int);
982 case GDI_DESIGN_WIDTH:
983 gi->border.width = va_arg(ap, int);
986 case GDI_DECORATION_DESIGN:
987 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
988 gi->deco.design.x = va_arg(ap, int);
989 gi->deco.design.y = va_arg(ap, int);
992 case GDI_DECORATION_POSITION:
993 gi->deco.x = va_arg(ap, int);
994 gi->deco.y = va_arg(ap, int);
997 case GDI_DECORATION_SIZE:
998 gi->deco.width = va_arg(ap, int);
999 gi->deco.height = va_arg(ap, int);
1002 case GDI_DECORATION_SHIFTING:
1003 gi->deco.xshift = va_arg(ap, int);
1004 gi->deco.yshift = va_arg(ap, int);
1007 case GDI_DECORATION_MASKED:
1008 gi->deco.masked = (boolean)va_arg(ap, int);
1011 case GDI_EVENT_MASK:
1012 gi->event_mask = va_arg(ap, unsigned int);
1016 gi->drawing.area_xsize = va_arg(ap, int);
1017 gi->drawing.area_ysize = va_arg(ap, int);
1019 /* determine dependent values for drawing area gadget, if needed */
1020 if (gi->drawing.item_xsize != 0 && gi->drawing.item_ysize != 0)
1022 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
1023 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
1025 else if (gi->width != 0 && gi->height != 0)
1027 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
1028 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
1031 /* same tag also used for other gadget definitions */
1032 gi->textarea.xsize = gi->drawing.area_xsize;
1033 gi->textarea.ysize = gi->drawing.area_ysize;
1035 if (gi->type & GD_TYPE_TEXT_AREA) /* force recalculation */
1044 gi->drawing.item_xsize = va_arg(ap, int);
1045 gi->drawing.item_ysize = va_arg(ap, int);
1047 /* determine dependent values for drawing area gadget, if needed */
1048 if (gi->drawing.area_xsize != 0 && gi->drawing.area_ysize != 0)
1050 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
1051 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
1053 else if (gi->width != 0 && gi->height != 0)
1055 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
1056 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
1060 case GDI_SCROLLBAR_ITEMS_MAX:
1061 gi->scrollbar.items_max = va_arg(ap, int);
1064 case GDI_SCROLLBAR_ITEMS_VISIBLE:
1065 gi->scrollbar.items_visible = va_arg(ap, int);
1068 case GDI_SCROLLBAR_ITEM_POSITION:
1069 gi->scrollbar.item_position = va_arg(ap, int);
1072 case GDI_WHEEL_AREA_X:
1073 gi->wheelarea.x = va_arg(ap, int);
1076 case GDI_WHEEL_AREA_Y:
1077 gi->wheelarea.y = va_arg(ap, int);
1080 case GDI_WHEEL_AREA_WIDTH:
1081 gi->wheelarea.width = va_arg(ap, int);
1084 case GDI_WHEEL_AREA_HEIGHT:
1085 gi->wheelarea.height = va_arg(ap, int);
1088 case GDI_CALLBACK_INFO:
1089 gi->callback_info = va_arg(ap, gadget_function);
1092 case GDI_CALLBACK_ACTION:
1093 gi->callback_action = va_arg(ap, gadget_function);
1097 Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
1100 tag = va_arg(ap, int); /* read next tag */
1103 gi->deactivated = FALSE;
1105 /* check if gadget has undefined bitmaps */
1106 if (gi->type != GD_TYPE_DRAWING_AREA &&
1107 (gi->design[GD_BUTTON_UNPRESSED].bitmap == NULL ||
1108 gi->design[GD_BUTTON_PRESSED].bitmap == NULL))
1109 gi->deactivated = TRUE;
1111 /* check if gadget is placed off-screen */
1112 if (gi->x < 0 || gi->y < 0)
1113 gi->deactivated = TRUE;
1115 /* adjust gadget values in relation to other gadget values */
1117 if (gi->type & GD_TYPE_TEXT_INPUT)
1119 int font_nr = gi->font_active;
1120 int font_width = getFontWidth(font_nr);
1121 int font_height = getFontHeight(font_nr);
1122 int border_xsize = gi->border.xsize;
1123 int border_ysize = gi->border.ysize;
1125 if (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC)
1127 int number_min = gi->textinput.number_min;
1128 int number_max = gi->textinput.number_max;
1129 int min_size_min = get_minimal_size_for_numeric_input(number_min);
1130 int min_size_max = get_minimal_size_for_numeric_input(number_max);
1131 int min_size = MAX(min_size_min, min_size_max);
1133 /* expand gadget text input size, if maximal value is too large */
1134 if (gi->textinput.size < min_size)
1135 gi->textinput.size = min_size;
1138 gi->width = 2 * border_xsize + (gi->textinput.size + 1) * font_width;
1139 gi->height = 2 * border_ysize + font_height;
1142 if (gi->type & GD_TYPE_SELECTBOX)
1144 int font_nr = gi->font_active;
1145 int font_width = getFontWidth(font_nr);
1146 int font_height = getFontHeight(font_nr);
1147 int border_xsize = gi->border.xsize;
1148 int border_ysize = gi->border.ysize;
1149 int button_size = gi->border.xsize_selectbutton;
1150 int bottom_screen_border = gfx.sy + gfx.sysize - font_height;
1154 gi->width = 2 * border_xsize + gi->textinput.size*font_width +button_size;
1155 gi->height = 2 * border_ysize + font_height;
1157 if (gi->selectbox.options == NULL)
1158 Error(ERR_EXIT, "selectbox gadget incomplete (missing options array)");
1160 gi->selectbox.num_values = 0;
1161 while (gi->selectbox.options[gi->selectbox.num_values].text != NULL)
1162 gi->selectbox.num_values++;
1164 /* calculate values for open selectbox */
1165 gi->selectbox.width = gi->width;
1166 gi->selectbox.height =
1167 2 * border_ysize + gi->selectbox.num_values * font_height;
1169 gi->selectbox.x = gi->x;
1170 gi->selectbox.y = gi->y + gi->height;
1171 if (gi->selectbox.y + gi->selectbox.height > bottom_screen_border)
1172 gi->selectbox.y = gi->y - gi->selectbox.height;
1173 if (gi->selectbox.y < 0)
1174 gi->selectbox.y = bottom_screen_border - gi->selectbox.height;
1176 getFontCharSource(font_nr, FONT_ASCII_CURSOR, &src_bitmap, &src_x, &src_y);
1177 src_x += font_width / 2;
1178 src_y += font_height / 2;
1180 /* there may be esoteric cases with missing or too small font bitmap */
1181 if (src_bitmap != NULL &&
1182 src_x < src_bitmap->width && src_y < src_bitmap->height)
1183 gi->selectbox.inverse_color = GetPixel(src_bitmap, src_x, src_y);
1185 /* always start with closed selectbox */
1186 gi->selectbox.open = FALSE;
1189 if (gi->type & GD_TYPE_TEXT_INPUT_NUMERIC)
1191 struct GadgetTextInput *text = &gi->textinput;
1192 int value = text->number_value;
1194 text->number_value = (value < text->number_min ? text->number_min :
1195 value > text->number_max ? text->number_max :
1198 sprintf(text->value, "%d", text->number_value);
1201 if (gi->type & GD_TYPE_TEXT_BUTTON)
1203 int font_nr = gi->font_active;
1204 int font_width = getFontWidth(font_nr);
1205 int font_height = getFontHeight(font_nr);
1206 int border_xsize = gi->border.xsize;
1207 int border_ysize = gi->border.ysize;
1209 gi->width = 2 * border_xsize + gi->textbutton.size * font_width;
1210 gi->height = 2 * border_ysize + font_height;
1213 if (gi->type & GD_TYPE_SCROLLBAR)
1215 struct GadgetScrollbar *gs = &gi->scrollbar;
1216 int scrollbar_size_cmp;
1218 if (gi->width == 0 || gi->height == 0 ||
1219 gs->items_max == 0 || gs->items_visible == 0)
1220 Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
1222 /* calculate internal scrollbar values */
1223 gs->size_min = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1224 gi->width : gi->height);
1225 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1226 gi->height : gi->width);
1228 scrollbar_size_cmp = gs->size_max * gs->items_visible / gs->items_max;
1229 gs->size = MAX(scrollbar_size_cmp, gs->size_min);
1230 gs->size_max_cmp = (gs->size_max - (gs->size - scrollbar_size_cmp));
1232 gs->position = gs->size_max_cmp * gs->item_position / gs->items_max;
1233 gs->position_max = gs->size_max - gs->size;
1234 gs->correction = gs->size_max / gs->items_max / 2;
1236 /* finetuning for maximal right/bottom position */
1237 if (gs->item_position == gs->items_max - gs->items_visible)
1238 gs->position = gs->position_max;
1241 if (gi->type & GD_TYPE_TEXT_AREA)
1243 int font_nr = gi->font_active;
1244 int font_width = getFontWidth(font_nr);
1245 int font_height = getFontHeight(font_nr);
1246 int border_xsize = gi->border.xsize;
1247 int border_ysize = gi->border.ysize;
1249 if (gi->width == 0 || gi->height == 0)
1251 gi->width = 2 * border_xsize + gi->textarea.xsize * font_width;
1252 gi->height = 2 * border_ysize + gi->textarea.ysize * font_height;
1256 gi->textarea.xsize = (gi->width - 2 * border_xsize) / font_width;
1257 gi->textarea.ysize = (gi->height - 2 * border_ysize) / font_height;
1262 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
1266 va_start(ap, first_tag);
1267 HandleGadgetTags(gi, first_tag, ap);
1273 void RedrawGadget(struct GadgetInfo *gi)
1275 if (gi == NULL || gi->deactivated)
1279 DrawGadget(gi, gi->state, gi->direct_draw);
1282 struct GadgetInfo *CreateGadget(int first_tag, ...)
1284 struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
1287 /* always start with reliable default values */
1288 new_gadget->id = getNewGadgetID();
1289 new_gadget->image_id = -1;
1290 new_gadget->callback_info = default_callback_info;
1291 new_gadget->callback_action = default_callback_action;
1292 new_gadget->active = TRUE;
1293 new_gadget->direct_draw = TRUE;
1295 new_gadget->next = NULL;
1297 va_start(ap, first_tag);
1298 HandleGadgetTags(new_gadget, first_tag, ap);
1301 /* insert new gadget into global gadget list */
1302 if (gadget_list_last_entry)
1304 gadget_list_last_entry->next = new_gadget;
1305 gadget_list_last_entry = gadget_list_last_entry->next;
1308 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
1313 void FreeGadget(struct GadgetInfo *gi)
1315 struct GadgetInfo *gi_previous = gadget_list_first_entry;
1320 /* prevent "last_info_gi" from pointing to memory that will be freed */
1321 if (last_info_gi == gi)
1322 last_info_gi = NULL;
1324 while (gi_previous != NULL && gi_previous->next != gi)
1325 gi_previous = gi_previous->next;
1327 if (gi == gadget_list_first_entry)
1328 gadget_list_first_entry = gi->next;
1330 if (gi == gadget_list_last_entry)
1331 gadget_list_last_entry = gi_previous;
1333 if (gi_previous != NULL)
1334 gi_previous->next = gi->next;
1339 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
1341 if (gi->type != GD_TYPE_TEXT_INPUT_NUMERIC)
1344 gi->textinput.number_value = atoi(gi->textinput.value);
1346 if (gi->textinput.number_value < gi->textinput.number_min)
1347 gi->textinput.number_value = gi->textinput.number_min;
1348 if (gi->textinput.number_value > gi->textinput.number_max)
1349 gi->textinput.number_value = gi->textinput.number_max;
1351 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
1353 if (gi->textinput.cursor_position < 0)
1354 gi->textinput.cursor_position = 0;
1355 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1356 gi->textinput.cursor_position = strlen(gi->textinput.value);
1359 /* global pointer to gadget actually in use (when mouse button pressed) */
1360 static struct GadgetInfo *last_gi = NULL;
1362 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
1364 if (gi == NULL || gi->deactivated || gi->mapped)
1370 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
1373 void MapGadget(struct GadgetInfo *gi)
1375 MapGadgetExt(gi, TRUE);
1378 void UnmapGadget(struct GadgetInfo *gi)
1380 if (gi == NULL || gi->deactivated || !gi->mapped)
1389 #define MAX_NUM_GADGETS 1024
1390 #define MULTIMAP_UNMAP (1 << 0)
1391 #define MULTIMAP_REMAP (1 << 1)
1392 #define MULTIMAP_REDRAW (1 << 2)
1393 #define MULTIMAP_PLAYFIELD (1 << 3)
1394 #define MULTIMAP_DOOR_1 (1 << 4)
1395 #define MULTIMAP_DOOR_2 (1 << 5)
1396 #define MULTIMAP_DOOR_3 (1 << 6)
1397 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
1402 static void MultiMapGadgets(int mode)
1404 struct GadgetInfo *gi = gadget_list_first_entry;
1405 static boolean map_state[MAX_NUM_GADGETS];
1413 if ((mode & MULTIMAP_PLAYFIELD && IN_GFX_FIELD_FULL(x, y)) ||
1414 (mode & MULTIMAP_DOOR_1 && IN_GFX_DOOR_1(x, y)) ||
1415 (mode & MULTIMAP_DOOR_2 && IN_GFX_DOOR_2(x, y)) ||
1416 (mode & MULTIMAP_DOOR_3 && IN_GFX_DOOR_3(x, y)) ||
1417 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
1419 if (mode & MULTIMAP_UNMAP)
1421 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
1426 if (map_state[map_count++ % MAX_NUM_GADGETS])
1427 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
1435 void UnmapAllGadgets(void)
1437 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
1440 void RemapAllGadgets(void)
1442 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
1445 boolean anyTextInputGadgetActive(void)
1447 return (last_gi && (last_gi->type & GD_TYPE_TEXT_INPUT) && last_gi->mapped);
1450 boolean anyTextAreaGadgetActive(void)
1452 return (last_gi && (last_gi->type & GD_TYPE_TEXT_AREA) && last_gi->mapped);
1455 boolean anySelectboxGadgetActive(void)
1457 return (last_gi && (last_gi->type & GD_TYPE_SELECTBOX) && last_gi->mapped);
1460 boolean anyScrollbarGadgetActive(void)
1462 return (last_gi && (last_gi->type & GD_TYPE_SCROLLBAR) && last_gi->mapped);
1465 boolean anyTextGadgetActive(void)
1467 return (anyTextInputGadgetActive() ||
1468 anyTextAreaGadgetActive() ||
1469 anySelectboxGadgetActive());
1472 static boolean insideSelectboxLine(struct GadgetInfo *gi, int mx, int my)
1474 return (gi != NULL &&
1475 gi->type & GD_TYPE_SELECTBOX &&
1476 mx >= gi->x && mx < gi->x + gi->width &&
1477 my >= gi->y && my < gi->y + gi->height);
1480 static boolean insideSelectboxArea(struct GadgetInfo *gi, int mx, int my)
1482 return (gi != NULL &&
1483 gi->type & GD_TYPE_SELECTBOX &&
1484 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
1485 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height);
1488 void ClickOnGadget(struct GadgetInfo *gi, int button)
1490 if (gi == NULL || gi->deactivated || !gi->mapped)
1493 /* simulate releasing mouse button over last gadget, if still pressed */
1495 HandleGadgets(-1, -1, 0);
1500 /* set cursor position to the end of the text for text input gadgets */
1501 if (gi->type & GD_TYPE_TEXT_INPUT)
1502 x = gi->x + gi->width - 1;
1504 /* simulate pressing mouse button over specified gadget */
1505 HandleGadgets(x, y, button);
1507 /* simulate releasing mouse button over specified gadget */
1508 HandleGadgets(x, y, 0);
1511 boolean HandleGadgets(int mx, int my, int button)
1513 static unsigned int pressed_delay = 0;
1514 static unsigned int pressed_delay_value = GADGET_FRAME_DELAY;
1515 static int last_button = 0;
1516 static int last_mx = 0, last_my = 0;
1517 static int pressed_mx = 0, pressed_my = 0;
1518 static boolean keep_selectbox_open = FALSE;
1519 static boolean gadget_stopped = FALSE;
1520 int scrollbar_mouse_pos = 0;
1521 struct GadgetInfo *new_gi, *gi;
1522 boolean press_event;
1523 boolean release_event;
1524 boolean mouse_moving;
1525 boolean mouse_inside_select_line;
1526 boolean mouse_inside_select_area;
1527 boolean mouse_released_where_pressed;
1528 boolean gadget_pressed;
1529 boolean gadget_pressed_repeated;
1530 boolean gadget_pressed_off_borders;
1531 boolean gadget_pressed_inside_select_line;
1532 boolean gadget_pressed_delay_reached;
1533 boolean gadget_moving;
1534 boolean gadget_moving_inside;
1535 boolean gadget_moving_off_borders;
1536 boolean gadget_draggable;
1537 boolean gadget_dragging;
1538 boolean gadget_released;
1539 boolean gadget_released_inside;
1540 boolean gadget_released_inside_select_area;
1541 boolean gadget_released_off_borders;
1542 boolean changed_position = FALSE;
1544 /* check if there are any gadgets defined */
1545 if (gadget_list_first_entry == NULL)
1548 /* simulated release of mouse button over last gadget */
1549 if (mx == -1 && my == -1 && button == 0)
1555 /* check which gadget is under the mouse pointer */
1556 new_gi = getGadgetInfoFromMousePosition(mx, my, button);
1558 /* check if button state has changed since last invocation */
1559 press_event = (button != 0 && last_button == 0);
1560 release_event = (button == 0 && last_button != 0);
1561 last_button = button;
1563 /* check if mouse has been moved since last invocation */
1564 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
1568 if (press_event && new_gi != last_gi)
1574 mouse_released_where_pressed =
1575 (release_event && mx == pressed_mx && my == pressed_my);
1577 mouse_inside_select_line = insideSelectboxLine(new_gi, mx, my);
1578 mouse_inside_select_area = insideSelectboxArea(new_gi, mx, my);
1580 gadget_pressed_off_borders = (press_event && new_gi != last_gi);
1582 gadget_pressed_inside_select_line =
1583 (press_event && new_gi != NULL &&
1584 new_gi->type & GD_TYPE_SELECTBOX && new_gi->selectbox.open &&
1585 insideSelectboxLine(new_gi, mx, my));
1587 /* if mouse button pressed outside text or selectbox gadget, deactivate it */
1588 if (anyTextGadgetActive() &&
1589 (gadget_pressed_off_borders ||
1590 (gadget_pressed_inside_select_line && !mouse_inside_select_area)))
1592 struct GadgetInfo *gi = last_gi;
1593 boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_LEAVING) != 0);
1595 /* check if text gadget has changed its value */
1596 if (gi->type & GD_TYPE_TEXT_INPUT)
1598 CheckRangeOfNumericInputGadget(gi);
1600 if (!strEqual(gi->textinput.last_value, gi->textinput.value))
1601 strcpy(gi->textinput.last_value, gi->textinput.value);
1603 gadget_changed = FALSE;
1606 /* selectbox does not change its value when closed by clicking outside */
1607 if (gi->type & GD_TYPE_SELECTBOX)
1608 gadget_changed = FALSE;
1610 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1612 gi->event.type = GD_EVENT_TEXT_LEAVING;
1614 if (gadget_changed && !(gi->type & GD_TYPE_SELECTBOX))
1615 gi->callback_action(gi);
1619 if (gadget_pressed_inside_select_line)
1626 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
1627 gadget_pressed_repeated =
1628 (button != 0 && last_gi != NULL && new_gi == last_gi);
1630 gadget_pressed_delay_reached =
1631 DelayReached(&pressed_delay, pressed_delay_value);
1633 gadget_released = (release_event && last_gi != NULL);
1634 gadget_released_inside = (gadget_released && new_gi == last_gi);
1635 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
1637 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
1638 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
1639 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
1641 /* when handling selectbox, set additional state values */
1642 if (gadget_released_inside && (last_gi->type & GD_TYPE_SELECTBOX))
1643 gadget_released_inside_select_area = insideSelectboxArea(last_gi, mx, my);
1645 gadget_released_inside_select_area = FALSE;
1647 /* setting state for handling over-large selectbox */
1648 if (keep_selectbox_open && (press_event || !mouse_inside_select_line))
1649 keep_selectbox_open = FALSE;
1651 /* if new gadget pressed, store this gadget */
1655 /* 'gi' is actually handled gadget */
1658 /* if gadget is scrollbar, choose mouse position value */
1659 if (gi && gi->type & GD_TYPE_SCROLLBAR)
1660 scrollbar_mouse_pos =
1661 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
1663 /* if mouse button released, no gadget needs to be handled anymore */
1664 if (gadget_released)
1666 if (gi->type & GD_TYPE_SELECTBOX &&
1667 (keep_selectbox_open ||
1668 mouse_released_where_pressed ||
1669 !gadget_released_inside_select_area ||
1670 !CURRENT_OPTION_SELECTABLE(gi))) /* selectbox stays open */
1672 gi->selectbox.stay_open = TRUE;
1676 else if (!(gi->type & GD_TYPE_TEXT_INPUT ||
1677 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1681 /* modify event position values even if no gadget is pressed */
1682 if (button == 0 && !release_event)
1685 /* if new gadget or if no gadget was pressed, release stopped processing */
1686 if (gadget_pressed || new_gi == NULL)
1687 gadget_stopped = FALSE;
1689 /* if gadget was stopped while being handled, stop gadget processing here */
1695 int last_x = gi->event.x;
1696 int last_y = gi->event.y;
1697 int last_mx = gi->event.mx;
1698 int last_my = gi->event.my;
1700 gi->event.x = gi->event.mx = mx - gi->x;
1701 gi->event.y = gi->event.my = my - gi->y;
1703 if (gi->type == GD_TYPE_DRAWING_AREA)
1705 gi->event.x /= gi->drawing.item_xsize;
1706 gi->event.y /= gi->drawing.item_ysize;
1708 if (last_x != gi->event.x || last_y != gi->event.y ||
1709 ((last_mx != gi->event.mx || last_my != gi->event.my) &&
1710 gi->event_mask & GD_EVENT_PIXEL_PRECISE))
1711 changed_position = TRUE;
1713 else if (gi->type & GD_TYPE_TEXT_INPUT && button != 0 && !motion_status)
1715 int old_cursor_position = gi->textinput.cursor_position;
1717 /* if mouse button pressed inside activated text gadget, set cursor */
1718 gi->textinput.cursor_position =
1719 (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1721 if (gi->textinput.cursor_position < 0)
1722 gi->textinput.cursor_position = 0;
1723 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1724 gi->textinput.cursor_position = strlen(gi->textinput.value);
1726 if (gi->textinput.cursor_position != old_cursor_position)
1727 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1730 StartTextInput(gi->x, gi->y, gi->width, gi->height);
1732 else if (gi->type & GD_TYPE_TEXT_AREA && button != 0 && !motion_status)
1734 int old_cursor_position = gi->textarea.cursor_position;
1735 int x = (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1736 int y = (my - gi->y - gi->border.ysize) / getFontHeight(gi->font);
1738 x = (x < 0 ? 0 : x >= gi->textarea.xsize ? gi->textarea.xsize - 1 : x);
1739 y = (y < 0 ? 0 : y >= gi->textarea.ysize ? gi->textarea.ysize - 1 : y);
1741 setTextAreaCursorXY(gi, x, y);
1743 if (gi->textarea.cursor_position != old_cursor_position)
1744 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1747 StartTextInput(gi->x, gi->y, gi->width, gi->height);
1749 else if (gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
1750 !keep_selectbox_open)
1752 int old_index = gi->selectbox.current_index;
1754 /* if mouse moving inside activated selectbox, select value */
1755 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1756 gi->selectbox.current_index =
1757 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1759 if (gi->selectbox.current_index < 0)
1760 gi->selectbox.current_index = 0;
1761 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1762 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1764 if (gi->selectbox.current_index != old_index)
1765 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1769 /* handle gadget popup info text */
1770 if (last_info_gi != new_gi ||
1771 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
1773 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
1775 new_gi->event.type = GD_EVENT_INFO_ENTERING;
1776 new_gi->callback_info(new_gi);
1778 else if (last_info_gi != NULL && last_info_gi->mapped)
1780 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
1781 last_info_gi->callback_info(last_info_gi);
1784 last_info_gi = new_gi;
1787 gadget_draggable = (gi && gi->type & GD_TYPE_SCROLLBAR);
1789 /* reset drag position for newly pressed scrollbar to "not dragging" */
1790 if (gadget_pressed && gadget_draggable)
1791 gi->scrollbar.drag_position = -1;
1793 gadget_dragging = (gadget_draggable && gi->scrollbar.drag_position != -1);
1795 /* clicking next to a scrollbar to move it is not considered "moving" */
1796 if (gadget_draggable && !gadget_dragging)
1797 gadget_moving = FALSE;
1799 /* when leaving scrollbar area when jump-scrolling, stop gadget processing */
1800 if (gadget_draggable && !gadget_dragging && gadget_moving_off_borders)
1801 gadget_stopped = TRUE;
1803 if ((gadget_pressed) ||
1804 (gadget_pressed_repeated && gadget_pressed_delay_reached))
1806 if (gadget_pressed) /* gadget pressed the first time */
1808 /* initialize delay counter */
1809 DelayReached(&pressed_delay, 0);
1811 /* start gadget delay with longer delay after first click on gadget */
1812 pressed_delay_value = GADGET_FRAME_DELAY_FIRST;
1814 else /* gadget hold pressed for some time */
1816 /* after first repeated gadget click, continue with shorter delay value */
1817 pressed_delay_value = GADGET_FRAME_DELAY;
1820 if (gi->type & GD_TYPE_SCROLLBAR && !gadget_dragging)
1822 int mpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx : my);
1823 int gpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? gi->x : gi->y);
1824 int slider_start = gpos + gi->scrollbar.position;
1825 int slider_end = gpos + gi->scrollbar.position + gi->scrollbar.size - 1;
1826 boolean inside_slider = (mpos >= slider_start && mpos <= slider_end);
1828 if (IS_WHEEL_BUTTON(button) || !inside_slider)
1830 /* click scrollbar one scrollbar length up/left or down/right */
1832 struct GadgetScrollbar *gs = &gi->scrollbar;
1833 int old_item_position = gs->item_position;
1834 int item_steps = gs->items_visible - 1;
1835 int item_direction = (mpos < gpos + gi->scrollbar.position ? -1 : +1);
1837 if (IS_WHEEL_BUTTON(button))
1839 boolean scroll_single_step = ((GetKeyModState() & KMOD_Alt) != 0);
1841 item_steps = (scroll_single_step ? 1 : wheel_steps);
1842 item_direction = (button == MB_WHEEL_UP ||
1843 button == MB_WHEEL_LEFT ? -1 : +1);
1846 changed_position = FALSE;
1848 gs->item_position += item_steps * item_direction;
1850 if (gs->item_position < 0)
1851 gs->item_position = 0;
1852 else if (gs->item_position > gs->items_max - gs->items_visible)
1853 gs->item_position = gs->items_max - gs->items_visible;
1855 if (old_item_position != gs->item_position)
1857 gi->event.item_position = gs->item_position;
1858 changed_position = TRUE;
1861 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
1864 gi->state = GD_BUTTON_UNPRESSED;
1865 gi->event.type = GD_EVENT_MOVING;
1866 gi->event.off_borders = FALSE;
1868 if (gi->event_mask & GD_EVENT_MOVING && changed_position)
1869 gi->callback_action(gi);
1875 /* don't handle this scrollbar anymore when mouse position reached */
1876 if (gadget_pressed_repeated)
1878 gadget_stopped = TRUE;
1888 PlayGadgetSoundActivating();
1890 if (gi->type == GD_TYPE_CHECK_BUTTON)
1892 gi->checked = !gi->checked;
1894 else if (gi->type == GD_TYPE_RADIO_BUTTON)
1896 struct GadgetInfo *rgi = gadget_list_first_entry;
1901 rgi->type == GD_TYPE_RADIO_BUTTON &&
1902 rgi->radio_nr == gi->radio_nr &&
1905 rgi->checked = FALSE;
1906 DrawGadget(rgi, DG_UNPRESSED, rgi->direct_draw);
1914 else if (gi->type & GD_TYPE_SCROLLBAR)
1916 int mpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx : my);
1917 int gpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? gi->x : gi->y);
1918 int slider_start = gpos + gi->scrollbar.position;
1919 int slider_end = gpos + gi->scrollbar.position + gi->scrollbar.size - 1;
1920 boolean inside_slider = (mpos >= slider_start && mpos <= slider_end);
1922 if (!IS_WHEEL_BUTTON(button) && inside_slider)
1924 /* start dragging scrollbar */
1925 gi->scrollbar.drag_position =
1926 scrollbar_mouse_pos - gi->scrollbar.position;
1929 else if (gi->type & GD_TYPE_SELECTBOX)
1931 /* keep selectbox open in case of over-large selectbox */
1932 keep_selectbox_open = (mouse_inside_select_line &&
1933 mouse_inside_select_area);
1936 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1938 gi->state = GD_BUTTON_PRESSED;
1939 gi->event.type = GD_EVENT_PRESSED;
1940 gi->event.button = button;
1941 gi->event.off_borders = FALSE;
1943 if (gi->event_mask & GD_EVENT_PRESSED)
1944 gi->callback_action(gi);
1947 if (gadget_pressed_repeated)
1949 gi->event.type = GD_EVENT_PRESSED;
1951 if (gi->event_mask & GD_EVENT_REPEATED && gadget_pressed_delay_reached)
1952 gi->callback_action(gi);
1957 if (gi->type & GD_TYPE_BUTTON)
1959 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
1960 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1961 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
1962 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1964 else if (gi->type & GD_TYPE_SELECTBOX && !keep_selectbox_open)
1966 int old_index = gi->selectbox.current_index;
1968 /* if mouse moving inside activated selectbox, select value */
1969 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1970 gi->selectbox.current_index =
1971 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1973 if (gi->selectbox.current_index < 0)
1974 gi->selectbox.current_index = 0;
1975 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1976 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1978 if (gi->selectbox.current_index != old_index)
1979 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1981 else if (gi->type & GD_TYPE_SCROLLBAR)
1983 struct GadgetScrollbar *gs = &gi->scrollbar;
1984 int old_item_position = gs->item_position;
1986 gs->position = scrollbar_mouse_pos - gs->drag_position;
1988 /* make sure to always precisely reach end positions when dragging */
1989 if (gs->position <= 0)
1992 gs->item_position = 0;
1994 else if (gs->position >= gs->position_max)
1996 gs->position = gs->position_max;
1997 gs->item_position = gs->items_max - gs->items_visible;
2002 gs->items_max * (gs->position + gs->correction) / gs->size_max_cmp;
2005 if (gs->item_position < 0)
2006 gs->item_position = 0;
2007 if (gs->item_position > gs->items_max - 1)
2008 gs->item_position = gs->items_max - 1;
2010 if (old_item_position != gs->item_position)
2012 gi->event.item_position = gs->item_position;
2013 changed_position = TRUE;
2016 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2019 gi->state = (gadget_moving_inside || gadget_draggable ?
2020 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
2021 gi->event.type = GD_EVENT_MOVING;
2022 gi->event.off_borders = gadget_moving_off_borders;
2024 if (gi->event_mask & GD_EVENT_MOVING && changed_position &&
2025 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
2026 gi->callback_action(gi);
2029 if (gadget_released_inside)
2031 boolean deactivate_gadget = TRUE;
2032 boolean gadget_changed = TRUE;
2034 if (gi->type & GD_TYPE_SELECTBOX)
2036 if (keep_selectbox_open ||
2037 mouse_released_where_pressed ||
2038 !gadget_released_inside_select_area ||
2039 !CURRENT_OPTION_SELECTABLE(gi)) /* selectbox stays open */
2041 deactivate_gadget = FALSE;
2042 gadget_changed = FALSE;
2044 else if (gi->selectbox.index != gi->selectbox.current_index)
2045 gi->selectbox.index = gi->selectbox.current_index;
2047 gadget_changed = FALSE;
2050 if (deactivate_gadget &&
2051 !(gi->type & GD_TYPE_TEXT_INPUT ||
2052 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
2053 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2055 gi->state = GD_BUTTON_UNPRESSED;
2056 gi->event.type = GD_EVENT_RELEASED;
2058 if ((gi->event_mask & GD_EVENT_RELEASED) && gadget_changed)
2060 gi->callback_action(gi);
2064 if (gadget_released_off_borders)
2066 if (gi->type & GD_TYPE_SCROLLBAR)
2067 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2069 gi->state = GD_BUTTON_UNPRESSED;
2070 gi->event.type = GD_EVENT_RELEASED;
2072 if (gi->event_mask & GD_EVENT_RELEASED &&
2073 gi->event_mask & GD_EVENT_OFF_BORDERS)
2074 gi->callback_action(gi);
2077 /* handle gadgets unmapped/mapped between pressing and releasing */
2078 if (release_event && !gadget_released && new_gi)
2079 new_gi->state = GD_BUTTON_UNPRESSED;
2081 return (gadget_pressed || gadget_pressed_repeated ||
2082 gadget_released || gadget_moving);
2085 static void insertCharIntoTextArea(struct GadgetInfo *gi, char c)
2087 char text[MAX_GADGET_TEXTSIZE + 1];
2088 int cursor_position = gi->textarea.cursor_position;
2090 if (strlen(gi->textarea.value) >= MAX_GADGET_TEXTSIZE) /* no space left */
2093 strcpy(text, gi->textarea.value);
2094 strcpy(&gi->textarea.value[cursor_position + 1], &text[cursor_position]);
2095 gi->textarea.value[cursor_position] = c;
2097 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2100 boolean HandleGadgetsKeyInput(Key key)
2102 struct GadgetInfo *gi = last_gi;
2104 if (gi == NULL || gi->deactivated || !gi->mapped ||
2105 !(gi->type & GD_TYPE_TEXT_INPUT ||
2106 gi->type & GD_TYPE_TEXT_AREA ||
2107 gi->type & GD_TYPE_SELECTBOX))
2110 if (key == KSYM_Escape)
2114 else if (key == KSYM_Return) /* valid for both text input and selectbox */
2116 boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_RETURN) != 0);
2118 if (gi->type & GD_TYPE_TEXT_INPUT)
2120 CheckRangeOfNumericInputGadget(gi);
2122 if (!strEqual(gi->textinput.last_value, gi->textinput.value))
2123 strcpy(gi->textinput.last_value, gi->textinput.value);
2125 gadget_changed = FALSE;
2129 else if (gi->type & GD_TYPE_SELECTBOX)
2131 if (gi->selectbox.index != gi->selectbox.current_index)
2132 gi->selectbox.index = gi->selectbox.current_index;
2134 gadget_changed = FALSE;
2137 if (gi->type & GD_TYPE_TEXT_AREA)
2139 insertCharIntoTextArea(gi, '\n');
2141 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2145 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2147 gi->event.type = GD_EVENT_TEXT_RETURN;
2153 gi->callback_action(gi);
2155 else if (gi->type & GD_TYPE_TEXT_INPUT) /* only valid for text input */
2157 char text[MAX_GADGET_TEXTSIZE + 1];
2158 int text_length = strlen(gi->textinput.value);
2159 int cursor_pos = gi->textinput.cursor_position;
2160 char letter = getCharFromKey(key);
2161 boolean legal_letter = (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC ?
2162 letter >= '0' && letter <= '9' :
2165 if (legal_letter && text_length < gi->textinput.size)
2167 strcpy(text, gi->textinput.value);
2168 strcpy(&gi->textinput.value[cursor_pos + 1], &text[cursor_pos]);
2169 gi->textinput.value[cursor_pos] = letter;
2170 gi->textinput.cursor_position++;
2172 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2174 else if (key == KSYM_Left && cursor_pos > 0)
2176 gi->textinput.cursor_position--;
2178 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2180 else if (key == KSYM_Right && cursor_pos < text_length)
2182 gi->textinput.cursor_position++;
2184 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2186 else if (key == KSYM_BackSpace && cursor_pos > 0)
2188 strcpy(text, gi->textinput.value);
2189 strcpy(&gi->textinput.value[cursor_pos - 1], &text[cursor_pos]);
2190 gi->textinput.cursor_position--;
2192 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2194 else if (key == KSYM_Delete && cursor_pos < text_length)
2196 strcpy(text, gi->textinput.value);
2197 strcpy(&gi->textinput.value[cursor_pos], &text[cursor_pos + 1]);
2199 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2202 else if (gi->type & GD_TYPE_TEXT_AREA) /* only valid for text area */
2204 char text[MAX_GADGET_TEXTSIZE + 1];
2205 int text_length = strlen(gi->textarea.value);
2206 int area_ysize = gi->textarea.ysize;
2207 int cursor_x_pref = gi->textarea.cursor_x_preferred;
2208 int cursor_y = gi->textarea.cursor_y;
2209 int cursor_pos = gi->textarea.cursor_position;
2210 char letter = getCharFromKey(key);
2211 boolean legal_letter = (letter != 0);
2215 insertCharIntoTextArea(gi, letter);
2217 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2219 else if (key == KSYM_Left && cursor_pos > 0)
2221 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2223 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2225 else if (key == KSYM_Right && cursor_pos < text_length)
2227 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2229 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2231 else if (key == KSYM_Up && cursor_y > 0)
2233 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y - 1);
2234 gi->textarea.cursor_x_preferred = cursor_x_pref;
2236 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2238 else if (key == KSYM_Down && cursor_y < area_ysize - 1)
2240 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y + 1);
2241 gi->textarea.cursor_x_preferred = cursor_x_pref;
2243 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2245 else if (key == KSYM_BackSpace && cursor_pos > 0)
2247 strcpy(text, gi->textarea.value);
2248 strcpy(&gi->textarea.value[cursor_pos - 1], &text[cursor_pos]);
2250 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2252 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2254 else if (key == KSYM_Delete && cursor_pos < text_length)
2256 strcpy(text, gi->textarea.value);
2257 strcpy(&gi->textarea.value[cursor_pos], &text[cursor_pos + 1]);
2259 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2262 else if (gi->type & GD_TYPE_SELECTBOX) /* only valid for selectbox */
2264 int index = gi->selectbox.current_index;
2265 int num_values = gi->selectbox.num_values;
2267 if (key == KSYM_Up && index > 0)
2269 gi->selectbox.current_index--;
2271 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2273 else if (key == KSYM_Down && index < num_values - 1)
2275 gi->selectbox.current_index++;
2277 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2284 void DumpGadgetIdentifiers(void)
2286 struct GadgetInfo *gi;
2288 Print("Gadgets on current screen:\n");
2290 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
2292 if (gi->mapped && gi->image_id != -1)
2294 char *token = getTokenFromImageID(gi->image_id);
2295 char *prefix = "gfx.";
2297 if (strPrefix(token, prefix))
2298 token = &token[strlen(prefix)];
2300 Print("- '%s'\n", token);
2307 boolean DoGadgetAction(int image_id)
2309 struct GadgetInfo *gi;
2311 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
2313 if (gi->mapped && gi->image_id == image_id)
2315 gi->callback_action(gi);