1 // ============================================================================
2 // Artsoft Retro-Game Library
3 // ----------------------------------------------------------------------------
4 // (c) 1995-2014 by Artsoft Entertainment
7 // http://www.artsoft.org/
8 // ----------------------------------------------------------------------------
10 // ============================================================================
20 /* values for DrawGadget() */
21 #define DG_UNPRESSED 0
27 #define GADGET_DEACTIVATED(g) ((g)->x < 0 || (g)->y < 0)
29 #define OPTION_TEXT_SELECTABLE(g, t) \
30 (t[0] != g->selectbox.char_unselectable && \
33 #define CURRENT_OPTION_SELECTABLE(g) \
34 OPTION_TEXT_SELECTABLE(g, g->selectbox.options[g->selectbox.current_index].text)
37 static struct GadgetInfo *gadget_list_first_entry = NULL;
38 static struct GadgetInfo *gadget_list_last_entry = NULL;
39 static struct GadgetInfo *last_info_gi = NULL;
40 static int next_free_gadget_id = 1;
41 static boolean gadget_id_wrapped = FALSE;
43 static void (*PlayGadgetSoundActivating)(void) = NULL;
44 static void (*PlayGadgetSoundSelecting)(void) = NULL;
47 void InitGadgetsSoundCallback(void (*activating_function)(void),
48 void (*selecting_function)(void))
50 PlayGadgetSoundActivating = activating_function;
51 PlayGadgetSoundSelecting = selecting_function;
54 static struct GadgetInfo *getGadgetInfoFromGadgetID(int id)
56 struct GadgetInfo *gi = gadget_list_first_entry;
58 while (gi && gi->id != id)
64 static int getNewGadgetID()
66 int id = next_free_gadget_id++;
68 if (next_free_gadget_id <= 0) /* counter overrun */
70 gadget_id_wrapped = TRUE; /* now we must check each ID */
71 next_free_gadget_id = 0;
74 if (gadget_id_wrapped)
76 next_free_gadget_id++;
77 while (getGadgetInfoFromGadgetID(next_free_gadget_id) != NULL)
78 next_free_gadget_id++;
81 if (next_free_gadget_id <= 0) /* cannot get new gadget id */
82 Error(ERR_EXIT, "too much gadgets -- this should not happen");
87 static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my,
90 struct GadgetInfo *gi;
92 /* first check for scrollbars in case of mouse scroll wheel button events */
93 if (IS_WHEEL_BUTTON(button))
95 /* real horizontal wheel or vertical wheel with modifier key pressed */
96 boolean check_horizontal = (IS_WHEEL_BUTTON_HORIZONTAL(button) ||
97 GetKeyModState() & KMOD_Shift);
99 /* check for the first active scrollbar directly under the mouse pointer */
100 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
102 if (gi->mapped && gi->active &&
103 (gi->type & GD_TYPE_SCROLLBAR) &&
104 mx >= gi->x && mx < gi->x + gi->width &&
105 my >= gi->y && my < gi->y + gi->height)
109 /* check for the first active scrollbar with matching mouse wheel area */
110 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
112 if (gi->mapped && gi->active &&
113 ((gi->type & GD_TYPE_SCROLLBAR_HORIZONTAL && check_horizontal) ||
114 (gi->type & GD_TYPE_SCROLLBAR_VERTICAL && !check_horizontal)) &&
115 mx >= gi->wheelarea.x && mx < gi->wheelarea.x + gi->wheelarea.width &&
116 my >= gi->wheelarea.y && my < gi->wheelarea.y + gi->wheelarea.height)
120 /* no active scrollbar found -- ignore this scroll wheel button event */
124 /* open selectboxes may overlap other active gadgets, so check them first */
125 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
127 if (gi->mapped && gi->active &&
128 gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
129 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
130 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
134 /* check all other gadgets */
135 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
137 if (gi->mapped && gi->active &&
138 mx >= gi->x && mx < gi->x + gi->width &&
139 my >= gi->y && my < gi->y + gi->height)
146 static void setTextAreaCursorExt(struct GadgetInfo *gi, boolean set_cursor_pos)
148 char *text = gi->textarea.value;
149 int area_xsize = gi->textarea.xsize;
150 int area_ysize = gi->textarea.ysize;
151 int cursor_position = gi->textarea.cursor_position;
152 int cursor_x = gi->textarea.cursor_x;
153 int cursor_y = gi->textarea.cursor_y;
160 if (set_cursor_pos) /* x/y => position */
162 if (y == cursor_y && (x == cursor_x || (x < cursor_x && *text == '\n')))
165 else /* position => x/y */
167 if (pos == cursor_position)
171 if (x + 1 >= area_xsize || *text == '\n')
173 if (y + 1 >= area_ysize)
186 gi->textarea.cursor_x = x;
187 gi->textarea.cursor_y = y;
188 gi->textarea.cursor_x_preferred = x;
189 gi->textarea.cursor_position = pos;
192 static void setTextAreaCursorXY(struct GadgetInfo *gi, int x, int y)
194 gi->textarea.cursor_x = x;
195 gi->textarea.cursor_y = y;
197 setTextAreaCursorExt(gi, TRUE);
200 static void setTextAreaCursorPosition(struct GadgetInfo *gi, int pos)
202 gi->textarea.cursor_position = pos;
204 setTextAreaCursorExt(gi, FALSE);
207 static void default_callback_info(void *ptr)
212 static void default_callback_action(void *ptr)
217 static void DrawGadget(struct GadgetInfo *gi, boolean pressed, boolean direct)
219 struct GadgetDesign *gd;
220 int state = (pressed ? GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
221 boolean redraw_selectbox = FALSE;
226 gd = (!gi->active ? &gi->alt_design[state] :
227 gi->checked ? &gi->alt_design[state] : &gi->design[state]);
231 case GD_TYPE_NORMAL_BUTTON:
232 case GD_TYPE_CHECK_BUTTON:
233 case GD_TYPE_RADIO_BUTTON:
234 BlitBitmapOnBackground(gd->bitmap, drawto,
235 gd->x, gd->y, gi->width, gi->height,
237 if (gi->deco.design.bitmap)
238 BlitBitmap(gi->deco.design.bitmap, drawto,
239 gi->deco.design.x, gi->deco.design.y,
240 gi->deco.width, gi->deco.height,
241 gi->x + gi->deco.x + (pressed ? gi->deco.xshift : 0),
242 gi->y + gi->deco.y + (pressed ? gi->deco.yshift : 0));
245 case GD_TYPE_TEXT_BUTTON:
248 int font_nr = (gi->active ? gi->font_active : gi->font);
249 int font_width = getFontWidth(font_nr);
250 int border_x = gi->border.xsize;
251 int border_y = gi->border.ysize;
252 int text_size = strlen(gi->textbutton.value);
253 int text_start = (gi->width - text_size * font_width) / 2;
255 /* left part of gadget */
256 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
257 border_x, gi->height, gi->x, gi->y);
259 /* middle part of gadget */
260 for (i=0; i < gi->textbutton.size; i++)
261 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
262 font_width, gi->height,
263 gi->x + border_x + i * font_width, gi->y);
265 /* right part of gadget */
266 BlitBitmapOnBackground(gd->bitmap, drawto,
267 gd->x + gi->border.width - border_x, gd->y,
268 border_x, gi->height,
269 gi->x + gi->width - border_x, gi->y);
271 /* gadget text value */
273 gi->x + text_start + (pressed ? gi->deco.xshift : 0),
274 gi->y + border_y + (pressed ? gi->deco.yshift : 0),
275 gi->textbutton.value, font_nr, BLIT_MASKED);
279 case GD_TYPE_TEXT_INPUT_ALPHANUMERIC:
280 case GD_TYPE_TEXT_INPUT_NUMERIC:
284 char cursor_string[2];
285 char text[MAX_GADGET_TEXTSIZE + 1];
286 int font_nr = (pressed ? gi->font_active : gi->font);
287 int font_width = getFontWidth(font_nr);
288 int border_x = gi->border.xsize;
289 int border_y = gi->border.ysize;
291 /* left part of gadget */
292 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
293 border_x, gi->height, gi->x, gi->y);
295 /* middle part of gadget */
296 for (i=0; i < gi->textinput.size + 1; i++)
297 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
298 font_width, gi->height,
299 gi->x + border_x + i * font_width, gi->y);
301 /* right part of gadget */
302 BlitBitmapOnBackground(gd->bitmap, drawto,
303 gd->x + gi->border.width - border_x, gd->y,
304 border_x, gi->height,
305 gi->x + gi->width - border_x, gi->y);
308 strcpy(text, gi->textinput.value);
311 /* gadget text value */
313 gi->x + border_x, gi->y + border_y, text,
314 font_nr, BLIT_MASKED);
316 cursor_letter = gi->textinput.value[gi->textinput.cursor_position];
317 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
318 cursor_string[1] = '\0';
320 /* draw cursor, if active */
324 gi->textinput.cursor_position * font_width,
325 gi->y + border_y, cursor_string,
326 font_nr, BLIT_INVERSE);
330 case GD_TYPE_TEXT_AREA:
334 char cursor_string[2];
335 int font_nr = (pressed ? gi->font_active : gi->font);
336 int font_width = getFontWidth(font_nr);
337 int font_height = getFontHeight(font_nr);
338 int border_x = gi->border.xsize;
339 int border_y = gi->border.ysize;
340 int gd_height = 2 * border_y + font_height;
342 /* top left part of gadget border */
343 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
344 border_x, border_y, gi->x, gi->y);
346 /* top middle part of gadget border */
347 for (i=0; i < gi->textarea.xsize; i++)
348 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
349 font_width, border_y,
350 gi->x + border_x + i * font_width, gi->y);
352 /* top right part of gadget border */
353 BlitBitmapOnBackground(gd->bitmap, drawto,
354 gd->x + gi->border.width - border_x, gd->y,
356 gi->x + gi->width - border_x, gi->y);
358 /* left and right part of gadget border for each row */
359 for (i=0; i < gi->textarea.ysize; i++)
361 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
362 border_x, font_height,
363 gi->x, gi->y + border_y + i * font_height);
364 BlitBitmapOnBackground(gd->bitmap, drawto,
365 gd->x + gi->border.width - border_x,
367 border_x, font_height,
368 gi->x + gi->width - border_x,
369 gi->y + border_y + i * font_height);
372 /* bottom left part of gadget border */
373 BlitBitmapOnBackground(gd->bitmap, drawto,
374 gd->x, gd->y + gd_height - border_y,
376 gi->x, gi->y + gi->height - border_y);
378 /* bottom middle part of gadget border */
379 for (i=0; i < gi->textarea.xsize; i++)
380 BlitBitmapOnBackground(gd->bitmap, drawto,
382 gd->y + gd_height - border_y,
383 font_width, border_y,
384 gi->x + border_x + i * font_width,
385 gi->y + gi->height - border_y);
387 /* bottom right part of gadget border */
388 BlitBitmapOnBackground(gd->bitmap, drawto,
389 gd->x + gi->border.width - border_x,
390 gd->y + gd_height - border_y,
392 gi->x + gi->width - border_x,
393 gi->y + gi->height - border_y);
395 ClearRectangleOnBackground(drawto,
398 gi->width - 2 * border_x,
399 gi->height - 2 * border_y);
401 /* gadget text value */
402 DrawTextBuffer(gi->x + border_x, gi->y + border_y, gi->textarea.value,
403 font_nr, gi->textarea.xsize, -1, gi->textarea.ysize, 0,
404 BLIT_ON_BACKGROUND, FALSE, FALSE, FALSE);
406 cursor_letter = gi->textarea.value[gi->textarea.cursor_position];
407 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
408 cursor_string[1] = '\0';
410 /* draw cursor, if active */
413 gi->x + border_x + gi->textarea.cursor_x * font_width,
414 gi->y + border_y + gi->textarea.cursor_y * font_height,
416 font_nr, BLIT_INVERSE);
420 case GD_TYPE_SELECTBOX:
423 char text[MAX_GADGET_TEXTSIZE + 1];
424 int font_nr_default = (pressed ? gi->font_active : gi->font);
425 int font_nr = font_nr_default;
426 int font_width = getFontWidth(font_nr);
427 int font_height = getFontHeight(font_nr);
428 int border_x = gi->border.xsize;
429 int border_y = gi->border.ysize;
430 int button = gi->border.xsize_selectbutton;
431 int width_inner = gi->border.width - button - 2 * border_x;
432 int box_width = gi->selectbox.width;
433 int box_height = gi->selectbox.height;
435 /* left part of gadget */
436 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
437 border_x, gi->height, gi->x, gi->y);
439 /* middle part of gadget */
440 for (i=0; i < gi->selectbox.size; i++)
441 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
442 font_width, gi->height,
443 gi->x + border_x + i * font_width, gi->y);
445 /* button part of gadget */
446 BlitBitmapOnBackground(gd->bitmap, drawto,
447 gd->x + border_x + width_inner, gd->y,
449 gi->x + gi->width - border_x - button, gi->y);
451 /* right part of gadget */
452 BlitBitmapOnBackground(gd->bitmap, drawto,
453 gd->x + gi->border.width - border_x, gd->y,
454 border_x, gi->height,
455 gi->x + gi->width - border_x, gi->y);
458 strncpy(text, gi->selectbox.options[gi->selectbox.index].text,
460 text[gi->selectbox.size] = '\0';
463 font_nr = (OPTION_TEXT_SELECTABLE(gi, text) ? font_nr_default :
464 gi->font_unselectable);
466 /* gadget text value */
467 DrawTextExt(drawto, gi->x + border_x, gi->y + border_y, text,
468 font_nr, BLIT_MASKED);
472 if (!gi->selectbox.open)
474 gi->selectbox.open = TRUE;
475 gi->selectbox.stay_open = FALSE;
476 gi->selectbox.current_index = gi->selectbox.index;
478 /* save background under selectbox */
479 BlitBitmap(drawto, gfx.field_save_buffer,
480 gi->selectbox.x, gi->selectbox.y,
481 gi->selectbox.width, gi->selectbox.height,
482 gi->selectbox.x, gi->selectbox.y);
485 /* draw open selectbox */
487 /* top left part of gadget border */
488 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
490 gi->selectbox.x, gi->selectbox.y);
492 /* top middle part of gadget border */
493 for (i=0; i < gi->selectbox.size; i++)
494 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
495 font_width, border_y,
496 gi->selectbox.x + border_x + i * font_width,
499 /* top button part of gadget border */
500 BlitBitmapOnBackground(gd->bitmap, drawto,
501 gd->x + border_x + width_inner, gd->y,
503 gi->selectbox.x + box_width -border_x -button,
506 /* top right part of gadget border */
507 BlitBitmapOnBackground(gd->bitmap, drawto,
508 gd->x + gi->border.width - border_x, gd->y,
510 gi->selectbox.x + box_width - border_x,
513 /* left and right part of gadget border for each row */
514 for (i=0; i < gi->selectbox.num_values; i++)
516 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
517 border_x, font_height,
519 gi->selectbox.y + border_y + i*font_height);
520 BlitBitmapOnBackground(gd->bitmap, drawto,
521 gd->x + gi->border.width - border_x,
523 border_x, font_height,
524 gi->selectbox.x + box_width - border_x,
525 gi->selectbox.y + border_y + i*font_height);
528 /* bottom left part of gadget border */
529 BlitBitmapOnBackground(gd->bitmap, drawto,
530 gd->x, gd->y + gi->height - border_y,
533 gi->selectbox.y + box_height - border_y);
535 /* bottom middle part of gadget border */
536 for (i=0; i < gi->selectbox.size; i++)
537 BlitBitmapOnBackground(gd->bitmap, drawto,
539 gd->y + gi->height - border_y,
540 font_width, border_y,
541 gi->selectbox.x + border_x + i * font_width,
542 gi->selectbox.y + box_height - border_y);
544 /* bottom button part of gadget border */
545 BlitBitmapOnBackground(gd->bitmap, drawto,
546 gd->x + border_x + width_inner,
547 gd->y + gi->height - border_y,
549 gi->selectbox.x + box_width -border_x -button,
550 gi->selectbox.y + box_height - border_y);
552 /* bottom right part of gadget border */
553 BlitBitmapOnBackground(gd->bitmap, drawto,
554 gd->x + gi->border.width - border_x,
555 gd->y + gi->height - border_y,
557 gi->selectbox.x + box_width - border_x,
558 gi->selectbox.y + box_height - border_y);
560 ClearRectangleOnBackground(drawto,
561 gi->selectbox.x + border_x,
562 gi->selectbox.y + border_y,
563 gi->selectbox.width - 2 * border_x,
564 gi->selectbox.height - 2 * border_y);
566 /* selectbox text values */
567 for (i=0; i < gi->selectbox.num_values; i++)
569 int mask_mode = BLIT_MASKED;
571 strncpy(text, gi->selectbox.options[i].text, gi->selectbox.size);
572 text[gi->selectbox.size] = '\0';
574 font_nr = (OPTION_TEXT_SELECTABLE(gi, text) ? font_nr_default :
575 gi->font_unselectable);
577 if (i == gi->selectbox.current_index &&
578 OPTION_TEXT_SELECTABLE(gi, text))
580 FillRectangle(drawto,
581 gi->selectbox.x + border_x,
582 gi->selectbox.y + border_y + i * font_height,
583 gi->selectbox.width - 2 * border_x, font_height,
584 gi->selectbox.inverse_color);
586 /* prevent use of cursor graphic by drawing at least two chars */
588 text[gi->selectbox.size] = '\0';
590 mask_mode = BLIT_INVERSE;
594 gi->selectbox.x + border_x,
595 gi->selectbox.y + border_y + i * font_height, text,
599 redraw_selectbox = TRUE;
601 else if (gi->selectbox.open)
603 gi->selectbox.open = FALSE;
605 /* restore background under selectbox */
606 BlitBitmap(gfx.field_save_buffer, drawto,
607 gi->selectbox.x, gi->selectbox.y,
608 gi->selectbox.width, gi->selectbox.height,
609 gi->selectbox.x, gi->selectbox.y);
611 /* redraw closed selectbox */
612 DrawGadget(gi, FALSE, FALSE);
614 redraw_selectbox = TRUE;
619 case GD_TYPE_SCROLLBAR_VERTICAL:
623 int ypos = gi->y + gi->scrollbar.position;
624 int design_full = gi->width;
625 int design_body = design_full - 2 * gi->border.ysize;
626 int size_full = gi->scrollbar.size;
627 int size_body = size_full - 2 * gi->border.ysize;
628 int num_steps = size_body / design_body;
629 int step_size_remain = size_body - num_steps * design_body;
631 /* clear scrollbar area */
632 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
633 gi->width, gi->height);
635 /* upper part of gadget */
636 BlitBitmapOnBackground(gd->bitmap, drawto,
638 gi->width, gi->border.ysize,
641 /* middle part of gadget */
642 for (i=0; i < num_steps; i++)
643 BlitBitmapOnBackground(gd->bitmap, drawto,
644 gd->x, gd->y + gi->border.ysize,
645 gi->width, design_body,
647 ypos + gi->border.ysize + i * design_body);
649 /* remaining middle part of gadget */
650 if (step_size_remain > 0)
651 BlitBitmapOnBackground(gd->bitmap, drawto,
652 gd->x, gd->y + gi->border.ysize,
653 gi->width, step_size_remain,
655 ypos + gi->border.ysize
656 + num_steps * design_body);
658 /* lower part of gadget */
659 BlitBitmapOnBackground(gd->bitmap, drawto,
660 gd->x, gd->y + design_full - gi->border.ysize,
661 gi->width, gi->border.ysize,
662 xpos, ypos + size_full - gi->border.ysize);
666 case GD_TYPE_SCROLLBAR_HORIZONTAL:
669 int xpos = gi->x + gi->scrollbar.position;
671 int design_full = gi->height;
672 int design_body = design_full - 2 * gi->border.xsize;
673 int size_full = gi->scrollbar.size;
674 int size_body = size_full - 2 * gi->border.xsize;
675 int num_steps = size_body / design_body;
676 int step_size_remain = size_body - num_steps * design_body;
678 /* clear scrollbar area */
679 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
680 gi->width, gi->height);
682 /* left part of gadget */
683 BlitBitmapOnBackground(gd->bitmap, drawto,
685 gi->border.xsize, gi->height,
688 /* middle part of gadget */
689 for (i=0; i < num_steps; i++)
690 BlitBitmapOnBackground(gd->bitmap, drawto,
691 gd->x + gi->border.xsize, gd->y,
692 design_body, gi->height,
693 xpos + gi->border.xsize + i * design_body,
696 /* remaining middle part of gadget */
697 if (step_size_remain > 0)
698 BlitBitmapOnBackground(gd->bitmap, drawto,
699 gd->x + gi->border.xsize, gd->y,
700 step_size_remain, gi->height,
701 xpos + gi->border.xsize
702 + num_steps * design_body,
705 /* right part of gadget */
706 BlitBitmapOnBackground(gd->bitmap, drawto,
707 gd->x + design_full - gi->border.xsize, gd->y,
708 gi->border.xsize, gi->height,
709 xpos + size_full - gi->border.xsize, ypos);
717 // do not use direct gadget drawing anymore; this worked as a speed-up once,
718 // but would slow things down a lot now the screen is always fully redrawn
723 BlitBitmap(drawto, window,
724 gi->x, gi->y, gi->width, gi->height, gi->x, gi->y);
726 if (gi->type == GD_TYPE_SELECTBOX && redraw_selectbox)
727 BlitBitmap(drawto, window,
728 gi->selectbox.x, gi->selectbox.y,
729 gi->selectbox.width, gi->selectbox.height,
730 gi->selectbox.x, gi->selectbox.y);
737 redraw_mask |= (IN_GFX_FIELD_FULL(x, y) ? REDRAW_FIELD :
738 IN_GFX_DOOR_1(x, y) ? REDRAW_DOOR_1 :
739 IN_GFX_DOOR_2(x, y) ? REDRAW_DOOR_2 :
740 IN_GFX_DOOR_3(x, y) ? REDRAW_DOOR_3 : REDRAW_ALL);
744 static int get_minimal_size_for_numeric_input(int minmax_value)
746 int min_size = 1; /* value needs at least one digit */
749 /* add number of digits needed for absolute value */
750 for (i = 10; i <= ABS(minmax_value); i *= 10)
753 /* if min/max value is negative, add one digit for minus sign */
754 if (minmax_value < 0)
760 static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
767 while (tag != GDI_END)
772 gi->custom_id = va_arg(ap, int);
775 case GDI_CUSTOM_TYPE_ID:
776 gi->custom_type_id = va_arg(ap, int);
781 int max_textsize = MAX_INFO_TEXTSIZE;
782 char *text = va_arg(ap, char *);
785 strncpy(gi->info_text, text, max_textsize);
789 gi->info_text[max_textsize] = '\0';
794 gi->x = va_arg(ap, int);
798 gi->y = va_arg(ap, int);
802 gi->width = va_arg(ap, int);
806 gi->height = va_arg(ap, int);
810 gi->type = va_arg(ap, unsigned int);
814 gi->state = va_arg(ap, unsigned int);
818 gi->active = (boolean)va_arg(ap, int);
821 case GDI_DIRECT_DRAW:
822 gi->direct_draw = (boolean)va_arg(ap, int);
826 gi->checked = (boolean)va_arg(ap, int);
830 gi->radio_nr = va_arg(ap, unsigned int);
833 case GDI_NUMBER_VALUE:
834 gi->textinput.number_value = va_arg(ap, int);
835 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
836 strcpy(gi->textinput.last_value, gi->textinput.value);
837 gi->textinput.cursor_position = strlen(gi->textinput.value);
841 gi->textinput.number_min = va_arg(ap, int);
842 if (gi->textinput.number_value < gi->textinput.number_min)
844 gi->textinput.number_value = gi->textinput.number_min;
845 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
846 strcpy(gi->textinput.last_value, gi->textinput.value);
851 gi->textinput.number_max = va_arg(ap, int);
852 if (gi->textinput.number_value > gi->textinput.number_max)
854 gi->textinput.number_value = gi->textinput.number_max;
855 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
856 strcpy(gi->textinput.last_value, gi->textinput.value);
862 int max_textsize = MAX_GADGET_TEXTSIZE;
864 if (gi->textinput.size)
865 max_textsize = MIN(gi->textinput.size, MAX_GADGET_TEXTSIZE);
867 strncpy(gi->textinput.value, va_arg(ap, char *), max_textsize);
868 strcpy(gi->textinput.last_value, gi->textinput.value);
870 gi->textinput.value[max_textsize] = '\0';
871 gi->textinput.cursor_position = strlen(gi->textinput.value);
873 /* same tag also used for other gadget definitions */
874 strcpy(gi->textbutton.value, gi->textinput.value);
875 strcpy(gi->textarea.value, gi->textinput.value);
876 strcpy(gi->textarea.last_value, gi->textinput.value);
882 int tag_value = va_arg(ap, int);
883 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE);
885 gi->textinput.size = max_textsize;
886 gi->textinput.value[max_textsize] = '\0';
887 strcpy(gi->textinput.last_value, gi->textinput.value);
889 /* same tag also used for other gadget definitions */
891 gi->textarea.size = max_textsize;
892 gi->textarea.value[max_textsize] = '\0';
893 strcpy(gi->textarea.last_value, gi->textinput.value);
895 gi->textbutton.size = max_textsize;
896 gi->textbutton.value[max_textsize] = '\0';
898 gi->selectbox.size = gi->textinput.size;
903 gi->font = va_arg(ap, int);
904 if (gi->font_active == 0)
905 gi->font_active = gi->font;
906 if (gi->font_unselectable == 0)
907 gi->font_unselectable = gi->font;
910 case GDI_TEXT_FONT_ACTIVE:
911 gi->font_active = va_arg(ap, int);
914 case GDI_TEXT_FONT_UNSELECTABLE:
915 gi->font_unselectable = va_arg(ap, int);
918 case GDI_SELECTBOX_OPTIONS:
919 gi->selectbox.options = va_arg(ap, struct ValueTextInfo *);
922 case GDI_SELECTBOX_INDEX:
923 gi->selectbox.index = va_arg(ap, int);
926 case GDI_SELECTBOX_CHAR_UNSELECTABLE:
927 gi->selectbox.char_unselectable = (char)va_arg(ap, int);
930 case GDI_DESIGN_UNPRESSED:
931 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
932 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
933 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
936 case GDI_DESIGN_PRESSED:
937 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
938 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
939 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
942 case GDI_ALT_DESIGN_UNPRESSED:
943 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
944 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
945 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
948 case GDI_ALT_DESIGN_PRESSED:
949 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
950 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
951 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
954 case GDI_BORDER_SIZE:
955 gi->border.xsize = va_arg(ap, int);
956 gi->border.ysize = va_arg(ap, int);
959 case GDI_BORDER_SIZE_SELECTBUTTON:
960 gi->border.xsize_selectbutton = va_arg(ap, int);
963 case GDI_DESIGN_WIDTH:
964 gi->border.width = va_arg(ap, int);
967 case GDI_DECORATION_DESIGN:
968 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
969 gi->deco.design.x = va_arg(ap, int);
970 gi->deco.design.y = va_arg(ap, int);
973 case GDI_DECORATION_POSITION:
974 gi->deco.x = va_arg(ap, int);
975 gi->deco.y = va_arg(ap, int);
978 case GDI_DECORATION_SIZE:
979 gi->deco.width = va_arg(ap, int);
980 gi->deco.height = va_arg(ap, int);
983 case GDI_DECORATION_SHIFTING:
984 gi->deco.xshift = va_arg(ap, int);
985 gi->deco.yshift = va_arg(ap, int);
989 gi->event_mask = va_arg(ap, unsigned int);
993 gi->drawing.area_xsize = va_arg(ap, int);
994 gi->drawing.area_ysize = va_arg(ap, int);
996 /* determine dependent values for drawing area gadget, if needed */
997 if (gi->drawing.item_xsize != 0 && gi->drawing.item_ysize != 0)
999 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
1000 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
1002 else if (gi->width != 0 && gi->height != 0)
1004 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
1005 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
1008 /* same tag also used for other gadget definitions */
1009 gi->textarea.xsize = gi->drawing.area_xsize;
1010 gi->textarea.ysize = gi->drawing.area_ysize;
1012 if (gi->type & GD_TYPE_TEXT_AREA) /* force recalculation */
1021 gi->drawing.item_xsize = va_arg(ap, int);
1022 gi->drawing.item_ysize = va_arg(ap, int);
1024 /* determine dependent values for drawing area gadget, if needed */
1025 if (gi->drawing.area_xsize != 0 && gi->drawing.area_ysize != 0)
1027 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
1028 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
1030 else if (gi->width != 0 && gi->height != 0)
1032 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
1033 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
1037 case GDI_SCROLLBAR_ITEMS_MAX:
1038 gi->scrollbar.items_max = va_arg(ap, int);
1041 case GDI_SCROLLBAR_ITEMS_VISIBLE:
1042 gi->scrollbar.items_visible = va_arg(ap, int);
1045 case GDI_SCROLLBAR_ITEM_POSITION:
1046 gi->scrollbar.item_position = va_arg(ap, int);
1049 case GDI_WHEEL_AREA_X:
1050 gi->wheelarea.x = va_arg(ap, int);
1053 case GDI_WHEEL_AREA_Y:
1054 gi->wheelarea.y = va_arg(ap, int);
1057 case GDI_WHEEL_AREA_WIDTH:
1058 gi->wheelarea.width = va_arg(ap, int);
1061 case GDI_WHEEL_AREA_HEIGHT:
1062 gi->wheelarea.height = va_arg(ap, int);
1065 case GDI_CALLBACK_INFO:
1066 gi->callback_info = va_arg(ap, gadget_function);
1069 case GDI_CALLBACK_ACTION:
1070 gi->callback_action = va_arg(ap, gadget_function);
1074 Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
1077 tag = va_arg(ap, int); /* read next tag */
1080 /* check if gadget is complete */
1081 if (gi->type != GD_TYPE_DRAWING_AREA &&
1082 (!gi->design[GD_BUTTON_UNPRESSED].bitmap ||
1083 !gi->design[GD_BUTTON_PRESSED].bitmap))
1084 Error(ERR_EXIT, "gadget incomplete (missing Bitmap)");
1086 /* adjust gadget values in relation to other gadget values */
1088 if (gi->type & GD_TYPE_TEXT_INPUT)
1090 int font_nr = gi->font_active;
1091 int font_width = getFontWidth(font_nr);
1092 int font_height = getFontHeight(font_nr);
1093 int border_xsize = gi->border.xsize;
1094 int border_ysize = gi->border.ysize;
1096 if (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC)
1098 int number_min = gi->textinput.number_min;
1099 int number_max = gi->textinput.number_max;
1100 int min_size_min = get_minimal_size_for_numeric_input(number_min);
1101 int min_size_max = get_minimal_size_for_numeric_input(number_max);
1102 int min_size = MAX(min_size_min, min_size_max);
1104 /* expand gadget text input size, if maximal value is too large */
1105 if (gi->textinput.size < min_size)
1106 gi->textinput.size = min_size;
1109 gi->width = 2 * border_xsize + (gi->textinput.size + 1) * font_width;
1110 gi->height = 2 * border_ysize + font_height;
1113 if (gi->type & GD_TYPE_SELECTBOX)
1115 int font_nr = gi->font_active;
1116 int font_width = getFontWidth(font_nr);
1117 int font_height = getFontHeight(font_nr);
1118 int border_xsize = gi->border.xsize;
1119 int border_ysize = gi->border.ysize;
1120 int button_size = gi->border.xsize_selectbutton;
1121 int bottom_screen_border = gfx.sy + gfx.sysize - font_height;
1125 gi->width = 2 * border_xsize + gi->textinput.size*font_width +button_size;
1126 gi->height = 2 * border_ysize + font_height;
1128 if (gi->selectbox.options == NULL)
1129 Error(ERR_EXIT, "selectbox gadget incomplete (missing options array)");
1131 gi->selectbox.num_values = 0;
1132 while (gi->selectbox.options[gi->selectbox.num_values].text != NULL)
1133 gi->selectbox.num_values++;
1135 /* calculate values for open selectbox */
1136 gi->selectbox.width = gi->width;
1137 gi->selectbox.height =
1138 2 * border_ysize + gi->selectbox.num_values * font_height;
1140 gi->selectbox.x = gi->x;
1141 gi->selectbox.y = gi->y + gi->height;
1142 if (gi->selectbox.y + gi->selectbox.height > bottom_screen_border)
1143 gi->selectbox.y = gi->y - gi->selectbox.height;
1144 if (gi->selectbox.y < 0)
1145 gi->selectbox.y = bottom_screen_border - gi->selectbox.height;
1147 getFontCharSource(font_nr, FONT_ASCII_CURSOR, &src_bitmap, &src_x, &src_y);
1148 src_x += font_width / 2;
1149 src_y += font_height / 2;
1151 /* there may be esoteric cases with missing or too small font bitmap */
1152 if (src_bitmap != NULL &&
1153 src_x < src_bitmap->width && src_y < src_bitmap->height)
1154 gi->selectbox.inverse_color = GetPixel(src_bitmap, src_x, src_y);
1156 /* always start with closed selectbox */
1157 gi->selectbox.open = FALSE;
1160 if (gi->type & GD_TYPE_TEXT_INPUT_NUMERIC)
1162 struct GadgetTextInput *text = &gi->textinput;
1163 int value = text->number_value;
1165 text->number_value = (value < text->number_min ? text->number_min :
1166 value > text->number_max ? text->number_max :
1169 sprintf(text->value, "%d", text->number_value);
1172 if (gi->type & GD_TYPE_TEXT_BUTTON)
1174 int font_nr = gi->font_active;
1175 int font_width = getFontWidth(font_nr);
1176 int font_height = getFontHeight(font_nr);
1177 int border_xsize = gi->border.xsize;
1178 int border_ysize = gi->border.ysize;
1180 gi->width = 2 * border_xsize + gi->textbutton.size * font_width;
1181 gi->height = 2 * border_ysize + font_height;
1184 if (gi->type & GD_TYPE_SCROLLBAR)
1186 struct GadgetScrollbar *gs = &gi->scrollbar;
1187 int scrollbar_size_cmp;
1189 if (gi->width == 0 || gi->height == 0 ||
1190 gs->items_max == 0 || gs->items_visible == 0)
1191 Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
1193 /* calculate internal scrollbar values */
1194 gs->size_min = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1195 gi->width : gi->height);
1196 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1197 gi->height : gi->width);
1199 scrollbar_size_cmp = gs->size_max * gs->items_visible / gs->items_max;
1200 gs->size = MAX(scrollbar_size_cmp, gs->size_min);
1201 gs->size_max_cmp = (gs->size_max - (gs->size - scrollbar_size_cmp));
1203 gs->position = gs->size_max_cmp * gs->item_position / gs->items_max;
1204 gs->position_max = gs->size_max - gs->size;
1205 gs->correction = gs->size_max / gs->items_max / 2;
1207 /* finetuning for maximal right/bottom position */
1208 if (gs->item_position == gs->items_max - gs->items_visible)
1209 gs->position = gs->position_max;
1212 if (gi->type & GD_TYPE_TEXT_AREA)
1214 int font_nr = gi->font_active;
1215 int font_width = getFontWidth(font_nr);
1216 int font_height = getFontHeight(font_nr);
1217 int border_xsize = gi->border.xsize;
1218 int border_ysize = gi->border.ysize;
1220 if (gi->width == 0 || gi->height == 0)
1222 gi->width = 2 * border_xsize + gi->textarea.xsize * font_width;
1223 gi->height = 2 * border_ysize + gi->textarea.ysize * font_height;
1227 gi->textarea.xsize = (gi->width - 2 * border_xsize) / font_width;
1228 gi->textarea.ysize = (gi->height - 2 * border_ysize) / font_height;
1233 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
1237 va_start(ap, first_tag);
1238 HandleGadgetTags(gi, first_tag, ap);
1244 void RedrawGadget(struct GadgetInfo *gi)
1250 DrawGadget(gi, gi->state, gi->direct_draw);
1253 struct GadgetInfo *CreateGadget(int first_tag, ...)
1255 struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
1258 /* always start with reliable default values */
1259 new_gadget->id = getNewGadgetID();
1260 new_gadget->callback_info = default_callback_info;
1261 new_gadget->callback_action = default_callback_action;
1262 new_gadget->active = TRUE;
1263 new_gadget->direct_draw = TRUE;
1265 new_gadget->next = NULL;
1267 va_start(ap, first_tag);
1268 HandleGadgetTags(new_gadget, first_tag, ap);
1271 /* insert new gadget into global gadget list */
1272 if (gadget_list_last_entry)
1274 gadget_list_last_entry->next = new_gadget;
1275 gadget_list_last_entry = gadget_list_last_entry->next;
1278 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
1283 void FreeGadget(struct GadgetInfo *gi)
1285 struct GadgetInfo *gi_previous = gadget_list_first_entry;
1290 /* prevent "last_info_gi" from pointing to memory that will be freed */
1291 if (last_info_gi == gi)
1292 last_info_gi = NULL;
1294 while (gi_previous != NULL && gi_previous->next != gi)
1295 gi_previous = gi_previous->next;
1297 if (gi == gadget_list_first_entry)
1298 gadget_list_first_entry = gi->next;
1300 if (gi == gadget_list_last_entry)
1301 gadget_list_last_entry = gi_previous;
1303 if (gi_previous != NULL)
1304 gi_previous->next = gi->next;
1309 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
1311 if (gi->type != GD_TYPE_TEXT_INPUT_NUMERIC)
1314 gi->textinput.number_value = atoi(gi->textinput.value);
1316 if (gi->textinput.number_value < gi->textinput.number_min)
1317 gi->textinput.number_value = gi->textinput.number_min;
1318 if (gi->textinput.number_value > gi->textinput.number_max)
1319 gi->textinput.number_value = gi->textinput.number_max;
1321 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
1323 if (gi->textinput.cursor_position < 0)
1324 gi->textinput.cursor_position = 0;
1325 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1326 gi->textinput.cursor_position = strlen(gi->textinput.value);
1329 /* global pointer to gadget actually in use (when mouse button pressed) */
1330 static struct GadgetInfo *last_gi = NULL;
1332 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
1334 if (gi == NULL || gi->mapped || GADGET_DEACTIVATED(gi))
1340 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
1343 void MapGadget(struct GadgetInfo *gi)
1345 MapGadgetExt(gi, TRUE);
1348 void UnmapGadget(struct GadgetInfo *gi)
1350 if (gi == NULL || !gi->mapped)
1359 #define MAX_NUM_GADGETS 1024
1360 #define MULTIMAP_UNMAP (1 << 0)
1361 #define MULTIMAP_REMAP (1 << 1)
1362 #define MULTIMAP_REDRAW (1 << 2)
1363 #define MULTIMAP_PLAYFIELD (1 << 3)
1364 #define MULTIMAP_DOOR_1 (1 << 4)
1365 #define MULTIMAP_DOOR_2 (1 << 5)
1366 #define MULTIMAP_DOOR_3 (1 << 6)
1367 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
1372 static void MultiMapGadgets(int mode)
1374 struct GadgetInfo *gi = gadget_list_first_entry;
1375 static boolean map_state[MAX_NUM_GADGETS];
1383 if ((mode & MULTIMAP_PLAYFIELD && IN_GFX_FIELD_FULL(x, y)) ||
1384 (mode & MULTIMAP_DOOR_1 && IN_GFX_DOOR_1(x, y)) ||
1385 (mode & MULTIMAP_DOOR_2 && IN_GFX_DOOR_2(x, y)) ||
1386 (mode & MULTIMAP_DOOR_3 && IN_GFX_DOOR_3(x, y)) ||
1387 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
1389 if (mode & MULTIMAP_UNMAP)
1391 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
1396 if (map_state[map_count++ % MAX_NUM_GADGETS])
1397 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
1405 void UnmapAllGadgets()
1407 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
1410 void RemapAllGadgets()
1412 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
1415 boolean anyTextInputGadgetActive()
1417 return (last_gi && (last_gi->type & GD_TYPE_TEXT_INPUT) && last_gi->mapped);
1420 boolean anyTextAreaGadgetActive()
1422 return (last_gi && (last_gi->type & GD_TYPE_TEXT_AREA) && last_gi->mapped);
1425 boolean anySelectboxGadgetActive()
1427 return (last_gi && (last_gi->type & GD_TYPE_SELECTBOX) && last_gi->mapped);
1430 boolean anyScrollbarGadgetActive()
1432 return (last_gi && (last_gi->type & GD_TYPE_SCROLLBAR) && last_gi->mapped);
1435 boolean anyTextGadgetActive()
1437 return (anyTextInputGadgetActive() ||
1438 anyTextAreaGadgetActive() ||
1439 anySelectboxGadgetActive());
1442 static boolean insideSelectboxLine(struct GadgetInfo *gi, int mx, int my)
1444 return (gi != NULL &&
1445 gi->type & GD_TYPE_SELECTBOX &&
1446 mx >= gi->x && mx < gi->x + gi->width &&
1447 my >= gi->y && my < gi->y + gi->height);
1450 static boolean insideSelectboxArea(struct GadgetInfo *gi, int mx, int my)
1452 return (gi != NULL &&
1453 gi->type & GD_TYPE_SELECTBOX &&
1454 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
1455 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height);
1458 void ClickOnGadget(struct GadgetInfo *gi, int button)
1463 /* simulate releasing mouse button over last gadget, if still pressed */
1465 HandleGadgets(-1, -1, 0);
1467 /* simulate pressing mouse button over specified gadget */
1468 HandleGadgets(gi->x, gi->y, button);
1470 /* simulate releasing mouse button over specified gadget */
1471 HandleGadgets(gi->x, gi->y, 0);
1474 boolean HandleGadgets(int mx, int my, int button)
1476 static unsigned int pressed_delay = 0;
1477 static unsigned int pressed_delay_value = GADGET_FRAME_DELAY;
1478 static int last_button = 0;
1479 static int last_mx = 0, last_my = 0;
1480 static int pressed_mx = 0, pressed_my = 0;
1481 static boolean keep_selectbox_open = FALSE;
1482 static boolean gadget_stopped = FALSE;
1483 int scrollbar_mouse_pos = 0;
1484 struct GadgetInfo *new_gi, *gi;
1485 boolean press_event;
1486 boolean release_event;
1487 boolean mouse_moving;
1488 boolean mouse_inside_select_line;
1489 boolean mouse_inside_select_area;
1490 boolean mouse_released_where_pressed;
1491 boolean gadget_pressed;
1492 boolean gadget_pressed_repeated;
1493 boolean gadget_pressed_off_borders;
1494 boolean gadget_pressed_inside_select_line;
1495 boolean gadget_pressed_delay_reached;
1496 boolean gadget_moving;
1497 boolean gadget_moving_inside;
1498 boolean gadget_moving_off_borders;
1499 boolean gadget_draggable;
1500 boolean gadget_dragging;
1501 boolean gadget_released;
1502 boolean gadget_released_inside;
1503 boolean gadget_released_inside_select_area;
1504 boolean gadget_released_off_borders;
1505 boolean changed_position = FALSE;
1507 /* check if there are any gadgets defined */
1508 if (gadget_list_first_entry == NULL)
1511 /* simulated release of mouse button over last gadget */
1512 if (mx == -1 && my == -1 && button == 0)
1518 /* check which gadget is under the mouse pointer */
1519 new_gi = getGadgetInfoFromMousePosition(mx, my, button);
1521 /* check if button state has changed since last invocation */
1522 press_event = (button != 0 && last_button == 0);
1523 release_event = (button == 0 && last_button != 0);
1524 last_button = button;
1526 /* check if mouse has been moved since last invocation */
1527 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
1531 if (press_event && new_gi != last_gi)
1537 mouse_released_where_pressed =
1538 (release_event && mx == pressed_mx && my == pressed_my);
1540 mouse_inside_select_line = insideSelectboxLine(new_gi, mx, my);
1541 mouse_inside_select_area = insideSelectboxArea(new_gi, mx, my);
1543 gadget_pressed_off_borders = (press_event && new_gi != last_gi);
1545 gadget_pressed_inside_select_line =
1546 (press_event && new_gi != NULL &&
1547 new_gi->type & GD_TYPE_SELECTBOX && new_gi->selectbox.open &&
1548 insideSelectboxLine(new_gi, mx, my));
1550 /* if mouse button pressed outside text or selectbox gadget, deactivate it */
1551 if (anyTextGadgetActive() &&
1552 (gadget_pressed_off_borders ||
1553 (gadget_pressed_inside_select_line && !mouse_inside_select_area)))
1555 struct GadgetInfo *gi = last_gi;
1556 boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_LEAVING) != 0);
1558 /* check if text gadget has changed its value */
1559 if (gi->type & GD_TYPE_TEXT_INPUT)
1561 CheckRangeOfNumericInputGadget(gi);
1563 if (!strEqual(gi->textinput.last_value, gi->textinput.value))
1564 strcpy(gi->textinput.last_value, gi->textinput.value);
1566 gadget_changed = FALSE;
1569 /* selectbox does not change its value when closed by clicking outside */
1570 if (gi->type & GD_TYPE_SELECTBOX)
1571 gadget_changed = FALSE;
1573 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1575 gi->event.type = GD_EVENT_TEXT_LEAVING;
1577 if (gadget_changed && !(gi->type & GD_TYPE_SELECTBOX))
1578 gi->callback_action(gi);
1582 if (gadget_pressed_inside_select_line)
1587 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
1588 gadget_pressed_repeated =
1589 (button != 0 && last_gi != NULL && new_gi == last_gi);
1591 gadget_pressed_delay_reached =
1592 DelayReached(&pressed_delay, pressed_delay_value);
1594 gadget_released = (release_event && last_gi != NULL);
1595 gadget_released_inside = (gadget_released && new_gi == last_gi);
1596 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
1598 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
1599 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
1600 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
1602 /* when handling selectbox, set additional state values */
1603 if (gadget_released_inside && (last_gi->type & GD_TYPE_SELECTBOX))
1604 gadget_released_inside_select_area = insideSelectboxArea(last_gi, mx, my);
1606 gadget_released_inside_select_area = FALSE;
1608 /* setting state for handling over-large selectbox */
1609 if (keep_selectbox_open && (press_event || !mouse_inside_select_line))
1610 keep_selectbox_open = FALSE;
1612 /* if new gadget pressed, store this gadget */
1616 /* 'gi' is actually handled gadget */
1619 /* if gadget is scrollbar, choose mouse position value */
1620 if (gi && gi->type & GD_TYPE_SCROLLBAR)
1621 scrollbar_mouse_pos =
1622 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
1624 /* if mouse button released, no gadget needs to be handled anymore */
1625 if (gadget_released)
1627 if (gi->type & GD_TYPE_SELECTBOX &&
1628 (keep_selectbox_open ||
1629 mouse_released_where_pressed ||
1630 !gadget_released_inside_select_area ||
1631 !CURRENT_OPTION_SELECTABLE(gi))) /* selectbox stays open */
1633 gi->selectbox.stay_open = TRUE;
1637 else if (!(gi->type & GD_TYPE_TEXT_INPUT ||
1638 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1642 /* modify event position values even if no gadget is pressed */
1643 if (button == 0 && !release_event)
1646 /* if new gadget or if no gadget was pressed, release stopped processing */
1647 if (gadget_pressed || new_gi == NULL)
1648 gadget_stopped = FALSE;
1650 /* if gadget was stopped while being handled, stop gadget processing here */
1656 int last_x = gi->event.x;
1657 int last_y = gi->event.y;
1659 gi->event.x = mx - gi->x;
1660 gi->event.y = my - gi->y;
1662 if (gi->type == GD_TYPE_DRAWING_AREA)
1664 gi->event.x /= gi->drawing.item_xsize;
1665 gi->event.y /= gi->drawing.item_ysize;
1667 if (last_x != gi->event.x || last_y != gi->event.y)
1668 changed_position = TRUE;
1670 else if (gi->type & GD_TYPE_TEXT_INPUT && button != 0 && !motion_status)
1672 int old_cursor_position = gi->textinput.cursor_position;
1674 /* if mouse button pressed inside activated text gadget, set cursor */
1675 gi->textinput.cursor_position =
1676 (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1678 if (gi->textinput.cursor_position < 0)
1679 gi->textinput.cursor_position = 0;
1680 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1681 gi->textinput.cursor_position = strlen(gi->textinput.value);
1683 if (gi->textinput.cursor_position != old_cursor_position)
1684 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1686 else if (gi->type & GD_TYPE_TEXT_AREA && button != 0 && !motion_status)
1688 int old_cursor_position = gi->textarea.cursor_position;
1689 int x = (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1690 int y = (my - gi->y - gi->border.ysize) / getFontHeight(gi->font);
1692 x = (x < 0 ? 0 : x >= gi->textarea.xsize ? gi->textarea.xsize - 1 : x);
1693 y = (y < 0 ? 0 : y >= gi->textarea.ysize ? gi->textarea.ysize - 1 : y);
1695 setTextAreaCursorXY(gi, x, y);
1697 if (gi->textarea.cursor_position != old_cursor_position)
1698 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1700 else if (gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
1701 !keep_selectbox_open)
1703 int old_index = gi->selectbox.current_index;
1705 /* if mouse moving inside activated selectbox, select value */
1706 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1707 gi->selectbox.current_index =
1708 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1710 if (gi->selectbox.current_index < 0)
1711 gi->selectbox.current_index = 0;
1712 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1713 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1715 if (gi->selectbox.current_index != old_index)
1716 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1720 /* handle gadget popup info text */
1721 if (last_info_gi != new_gi ||
1722 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
1724 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
1726 new_gi->event.type = GD_EVENT_INFO_ENTERING;
1727 new_gi->callback_info(new_gi);
1729 else if (last_info_gi != NULL)
1731 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
1732 last_info_gi->callback_info(last_info_gi);
1735 last_info_gi = new_gi;
1738 gadget_draggable = (gi && gi->type & GD_TYPE_SCROLLBAR);
1740 /* reset drag position for newly pressed scrollbar to "not dragging" */
1741 if (gadget_pressed && gadget_draggable)
1742 gi->scrollbar.drag_position = -1;
1744 gadget_dragging = (gadget_draggable && gi->scrollbar.drag_position != -1);
1746 /* clicking next to a scrollbar to move it is not considered "moving" */
1747 if (gadget_draggable && !gadget_dragging)
1748 gadget_moving = FALSE;
1750 /* when leaving scrollbar area when jump-scrolling, stop gadget processing */
1751 if (gadget_draggable && !gadget_dragging && gadget_moving_off_borders)
1752 gadget_stopped = TRUE;
1754 if ((gadget_pressed) ||
1755 (gadget_pressed_repeated && gadget_pressed_delay_reached))
1757 if (gadget_pressed) /* gadget pressed the first time */
1759 /* initialize delay counter */
1760 DelayReached(&pressed_delay, 0);
1762 /* start gadget delay with longer delay after first click on gadget */
1763 pressed_delay_value = GADGET_FRAME_DELAY_FIRST;
1765 else /* gadget hold pressed for some time */
1767 /* after first repeated gadget click, continue with shorter delay value */
1768 pressed_delay_value = GADGET_FRAME_DELAY;
1771 if (gi->type & GD_TYPE_SCROLLBAR && !gadget_dragging)
1773 int mpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx : my);
1774 int gpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? gi->x : gi->y);
1775 int slider_start = gpos + gi->scrollbar.position;
1776 int slider_end = gpos + gi->scrollbar.position + gi->scrollbar.size - 1;
1777 boolean inside_slider = (mpos >= slider_start && mpos <= slider_end);
1779 if (IS_WHEEL_BUTTON(button) || !inside_slider)
1781 /* click scrollbar one scrollbar length up/left or down/right */
1783 struct GadgetScrollbar *gs = &gi->scrollbar;
1784 int old_item_position = gs->item_position;
1785 int item_steps = gs->items_visible - 1;
1786 int item_direction = (mpos < gpos + gi->scrollbar.position ? -1 : +1);
1788 if (IS_WHEEL_BUTTON(button))
1790 boolean scroll_single_step = ((GetKeyModState() & KMOD_Alt) != 0);
1792 item_steps = (scroll_single_step ? 1 : wheel_steps);
1793 item_direction = (button == MB_WHEEL_UP ||
1794 button == MB_WHEEL_LEFT ? -1 : +1);
1797 changed_position = FALSE;
1799 gs->item_position += item_steps * item_direction;
1801 if (gs->item_position < 0)
1802 gs->item_position = 0;
1803 else if (gs->item_position > gs->items_max - gs->items_visible)
1804 gs->item_position = gs->items_max - gs->items_visible;
1806 if (old_item_position != gs->item_position)
1808 gi->event.item_position = gs->item_position;
1809 changed_position = TRUE;
1812 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
1815 gi->state = GD_BUTTON_UNPRESSED;
1816 gi->event.type = GD_EVENT_MOVING;
1817 gi->event.off_borders = FALSE;
1819 if (gi->event_mask & GD_EVENT_MOVING && changed_position)
1820 gi->callback_action(gi);
1826 /* don't handle this scrollbar anymore when mouse position reached */
1827 if (gadget_pressed_repeated)
1829 gadget_stopped = TRUE;
1839 PlayGadgetSoundActivating();
1841 if (gi->type == GD_TYPE_CHECK_BUTTON)
1843 gi->checked = !gi->checked;
1845 else if (gi->type == GD_TYPE_RADIO_BUTTON)
1847 struct GadgetInfo *rgi = gadget_list_first_entry;
1852 rgi->type == GD_TYPE_RADIO_BUTTON &&
1853 rgi->radio_nr == gi->radio_nr &&
1856 rgi->checked = FALSE;
1857 DrawGadget(rgi, DG_UNPRESSED, rgi->direct_draw);
1865 else if (gi->type & GD_TYPE_SCROLLBAR)
1867 int mpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx : my);
1868 int gpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? gi->x : gi->y);
1869 int slider_start = gpos + gi->scrollbar.position;
1870 int slider_end = gpos + gi->scrollbar.position + gi->scrollbar.size - 1;
1871 boolean inside_slider = (mpos >= slider_start && mpos <= slider_end);
1873 if (!IS_WHEEL_BUTTON(button) && inside_slider)
1875 /* start dragging scrollbar */
1876 gi->scrollbar.drag_position =
1877 scrollbar_mouse_pos - gi->scrollbar.position;
1880 else if (gi->type & GD_TYPE_SELECTBOX)
1882 /* keep selectbox open in case of over-large selectbox */
1883 keep_selectbox_open = (mouse_inside_select_line &&
1884 mouse_inside_select_area);
1887 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1889 gi->state = GD_BUTTON_PRESSED;
1890 gi->event.type = GD_EVENT_PRESSED;
1891 gi->event.button = button;
1892 gi->event.off_borders = FALSE;
1894 if (gi->event_mask & GD_EVENT_PRESSED)
1895 gi->callback_action(gi);
1898 if (gadget_pressed_repeated)
1900 gi->event.type = GD_EVENT_PRESSED;
1902 if (gi->event_mask & GD_EVENT_REPEATED && gadget_pressed_delay_reached)
1903 gi->callback_action(gi);
1908 if (gi->type & GD_TYPE_BUTTON)
1910 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
1911 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1912 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
1913 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1915 else if (gi->type & GD_TYPE_SELECTBOX && !keep_selectbox_open)
1917 int old_index = gi->selectbox.current_index;
1919 /* if mouse moving inside activated selectbox, select value */
1920 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1921 gi->selectbox.current_index =
1922 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1924 if (gi->selectbox.current_index < 0)
1925 gi->selectbox.current_index = 0;
1926 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1927 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1929 if (gi->selectbox.current_index != old_index)
1930 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1932 else if (gi->type & GD_TYPE_SCROLLBAR)
1934 struct GadgetScrollbar *gs = &gi->scrollbar;
1935 int old_item_position = gs->item_position;
1937 gs->position = scrollbar_mouse_pos - gs->drag_position;
1939 /* make sure to always precisely reach end positions when dragging */
1940 if (gs->position <= 0)
1943 gs->item_position = 0;
1945 else if (gs->position >= gs->position_max)
1947 gs->position = gs->position_max;
1948 gs->item_position = gs->items_max - gs->items_visible;
1953 gs->items_max * (gs->position + gs->correction) / gs->size_max_cmp;
1956 if (gs->item_position < 0)
1957 gs->item_position = 0;
1958 if (gs->item_position > gs->items_max - 1)
1959 gs->item_position = gs->items_max - 1;
1961 if (old_item_position != gs->item_position)
1963 gi->event.item_position = gs->item_position;
1964 changed_position = TRUE;
1967 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1970 gi->state = (gadget_moving_inside || gadget_draggable ?
1971 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
1972 gi->event.type = GD_EVENT_MOVING;
1973 gi->event.off_borders = gadget_moving_off_borders;
1975 if (gi->event_mask & GD_EVENT_MOVING && changed_position &&
1976 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
1977 gi->callback_action(gi);
1980 if (gadget_released_inside)
1982 boolean deactivate_gadget = TRUE;
1983 boolean gadget_changed = TRUE;
1985 if (gi->type & GD_TYPE_SELECTBOX)
1987 if (keep_selectbox_open ||
1988 mouse_released_where_pressed ||
1989 !gadget_released_inside_select_area ||
1990 !CURRENT_OPTION_SELECTABLE(gi)) /* selectbox stays open */
1992 deactivate_gadget = FALSE;
1993 gadget_changed = FALSE;
1995 else if (gi->selectbox.index != gi->selectbox.current_index)
1996 gi->selectbox.index = gi->selectbox.current_index;
1998 gadget_changed = FALSE;
2001 if (deactivate_gadget &&
2002 !(gi->type & GD_TYPE_TEXT_INPUT ||
2003 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
2004 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2006 gi->state = GD_BUTTON_UNPRESSED;
2007 gi->event.type = GD_EVENT_RELEASED;
2009 if ((gi->event_mask & GD_EVENT_RELEASED) && gadget_changed)
2011 gi->callback_action(gi);
2015 if (gadget_released_off_borders)
2017 if (gi->type & GD_TYPE_SCROLLBAR)
2018 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2020 gi->state = GD_BUTTON_UNPRESSED;
2021 gi->event.type = GD_EVENT_RELEASED;
2023 if (gi->event_mask & GD_EVENT_RELEASED &&
2024 gi->event_mask & GD_EVENT_OFF_BORDERS)
2025 gi->callback_action(gi);
2028 /* handle gadgets unmapped/mapped between pressing and releasing */
2029 if (release_event && !gadget_released && new_gi)
2030 new_gi->state = GD_BUTTON_UNPRESSED;
2032 return (gadget_pressed || gadget_pressed_repeated ||
2033 gadget_released || gadget_moving);
2036 static void insertCharIntoTextArea(struct GadgetInfo *gi, char c)
2038 char text[MAX_GADGET_TEXTSIZE + 1];
2039 int cursor_position = gi->textarea.cursor_position;
2041 if (strlen(gi->textarea.value) >= MAX_GADGET_TEXTSIZE) /* no space left */
2044 strcpy(text, gi->textarea.value);
2045 strcpy(&gi->textarea.value[cursor_position + 1], &text[cursor_position]);
2046 gi->textarea.value[cursor_position] = c;
2048 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2051 boolean HandleGadgetsKeyInput(Key key)
2053 struct GadgetInfo *gi = last_gi;
2055 if (gi == NULL || !gi->mapped ||
2056 !(gi->type & GD_TYPE_TEXT_INPUT ||
2057 gi->type & GD_TYPE_TEXT_AREA ||
2058 gi->type & GD_TYPE_SELECTBOX))
2061 if (key == KSYM_Return) /* valid for both text input and selectbox */
2063 boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_RETURN) != 0);
2065 if (gi->type & GD_TYPE_TEXT_INPUT)
2067 CheckRangeOfNumericInputGadget(gi);
2069 if (!strEqual(gi->textinput.last_value, gi->textinput.value))
2070 strcpy(gi->textinput.last_value, gi->textinput.value);
2072 gadget_changed = FALSE;
2074 else if (gi->type & GD_TYPE_SELECTBOX)
2076 if (gi->selectbox.index != gi->selectbox.current_index)
2077 gi->selectbox.index = gi->selectbox.current_index;
2079 gadget_changed = FALSE;
2082 if (gi->type & GD_TYPE_TEXT_AREA)
2084 insertCharIntoTextArea(gi, '\n');
2086 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2090 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2092 gi->event.type = GD_EVENT_TEXT_RETURN;
2098 gi->callback_action(gi);
2100 else if (gi->type & GD_TYPE_TEXT_INPUT) /* only valid for text input */
2102 char text[MAX_GADGET_TEXTSIZE + 1];
2103 int text_length = strlen(gi->textinput.value);
2104 int cursor_pos = gi->textinput.cursor_position;
2105 char letter = getCharFromKey(key);
2106 boolean legal_letter = (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC ?
2107 letter >= '0' && letter <= '9' :
2110 if (legal_letter && text_length < gi->textinput.size)
2112 strcpy(text, gi->textinput.value);
2113 strcpy(&gi->textinput.value[cursor_pos + 1], &text[cursor_pos]);
2114 gi->textinput.value[cursor_pos] = letter;
2115 gi->textinput.cursor_position++;
2117 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2119 else if (key == KSYM_Left && cursor_pos > 0)
2121 gi->textinput.cursor_position--;
2123 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2125 else if (key == KSYM_Right && cursor_pos < text_length)
2127 gi->textinput.cursor_position++;
2129 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2131 else if (key == KSYM_BackSpace && cursor_pos > 0)
2133 strcpy(text, gi->textinput.value);
2134 strcpy(&gi->textinput.value[cursor_pos - 1], &text[cursor_pos]);
2135 gi->textinput.cursor_position--;
2137 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2139 else if (key == KSYM_Delete && cursor_pos < text_length)
2141 strcpy(text, gi->textinput.value);
2142 strcpy(&gi->textinput.value[cursor_pos], &text[cursor_pos + 1]);
2144 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2147 else if (gi->type & GD_TYPE_TEXT_AREA) /* only valid for text area */
2149 char text[MAX_GADGET_TEXTSIZE + 1];
2150 int text_length = strlen(gi->textarea.value);
2151 int area_ysize = gi->textarea.ysize;
2152 int cursor_x_pref = gi->textarea.cursor_x_preferred;
2153 int cursor_y = gi->textarea.cursor_y;
2154 int cursor_pos = gi->textarea.cursor_position;
2155 char letter = getCharFromKey(key);
2156 boolean legal_letter = (letter != 0);
2160 insertCharIntoTextArea(gi, letter);
2162 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2164 else if (key == KSYM_Left && cursor_pos > 0)
2166 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2168 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2170 else if (key == KSYM_Right && cursor_pos < text_length)
2172 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2174 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2176 else if (key == KSYM_Up && cursor_y > 0)
2178 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y - 1);
2179 gi->textarea.cursor_x_preferred = cursor_x_pref;
2181 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2183 else if (key == KSYM_Down && cursor_y < area_ysize - 1)
2185 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y + 1);
2186 gi->textarea.cursor_x_preferred = cursor_x_pref;
2188 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2190 else if (key == KSYM_BackSpace && cursor_pos > 0)
2192 strcpy(text, gi->textarea.value);
2193 strcpy(&gi->textarea.value[cursor_pos - 1], &text[cursor_pos]);
2195 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2197 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2199 else if (key == KSYM_Delete && cursor_pos < text_length)
2201 strcpy(text, gi->textarea.value);
2202 strcpy(&gi->textarea.value[cursor_pos], &text[cursor_pos + 1]);
2204 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2207 else if (gi->type & GD_TYPE_SELECTBOX) /* only valid for selectbox */
2209 int index = gi->selectbox.current_index;
2210 int num_values = gi->selectbox.num_values;
2212 if (key == KSYM_Up && index > 0)
2214 gi->selectbox.current_index--;
2216 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2218 else if (key == KSYM_Down && index < num_values - 1)
2220 gi->selectbox.current_index++;
2222 DrawGadget(gi, DG_PRESSED, gi->direct_draw);