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 OPTION_TEXT_SELECTABLE(g, t) \
28 (t[0] != g->selectbox.char_unselectable && \
31 #define CURRENT_OPTION_SELECTABLE(g) \
32 OPTION_TEXT_SELECTABLE(g, g->selectbox.options[g->selectbox.current_index].text)
35 static struct GadgetInfo *gadget_list_first_entry = NULL;
36 static struct GadgetInfo *gadget_list_last_entry = NULL;
37 static struct GadgetInfo *last_info_gi = NULL;
38 static int next_free_gadget_id = 1;
39 static boolean gadget_id_wrapped = FALSE;
41 static void (*PlayGadgetSoundActivating)(void) = NULL;
42 static void (*PlayGadgetSoundSelecting)(void) = NULL;
45 void InitGadgetsSoundCallback(void (*activating_function)(void),
46 void (*selecting_function)(void))
48 PlayGadgetSoundActivating = activating_function;
49 PlayGadgetSoundSelecting = selecting_function;
52 static struct GadgetInfo *getGadgetInfoFromGadgetID(int id)
54 struct GadgetInfo *gi = gadget_list_first_entry;
56 while (gi && gi->id != id)
62 static int getNewGadgetID()
64 int id = next_free_gadget_id++;
66 if (next_free_gadget_id <= 0) /* counter overrun */
68 gadget_id_wrapped = TRUE; /* now we must check each ID */
69 next_free_gadget_id = 0;
72 if (gadget_id_wrapped)
74 next_free_gadget_id++;
75 while (getGadgetInfoFromGadgetID(next_free_gadget_id) != NULL)
76 next_free_gadget_id++;
79 if (next_free_gadget_id <= 0) /* cannot get new gadget id */
80 Error(ERR_EXIT, "too much gadgets -- this should not happen");
85 static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my,
88 struct GadgetInfo *gi;
90 /* first check for scrollbars in case of mouse scroll wheel button events */
91 if (IS_WHEEL_BUTTON(button))
93 /* real horizontal wheel or vertical wheel with modifier key pressed */
94 boolean check_horizontal = (IS_WHEEL_BUTTON_HORIZONTAL(button) ||
95 GetKeyModState() & KMOD_Shift);
97 /* check for the first active scrollbar directly under the mouse pointer */
98 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
100 if (gi->mapped && gi->active &&
101 (gi->type & GD_TYPE_SCROLLBAR) &&
102 mx >= gi->x && mx < gi->x + gi->width &&
103 my >= gi->y && my < gi->y + gi->height)
107 /* check for the first active scrollbar with matching mouse wheel area */
108 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
110 if (gi->mapped && gi->active &&
111 ((gi->type & GD_TYPE_SCROLLBAR_HORIZONTAL && check_horizontal) ||
112 (gi->type & GD_TYPE_SCROLLBAR_VERTICAL && !check_horizontal)) &&
113 mx >= gi->wheelarea.x && mx < gi->wheelarea.x + gi->wheelarea.width &&
114 my >= gi->wheelarea.y && my < gi->wheelarea.y + gi->wheelarea.height)
118 /* no active scrollbar found -- ignore this scroll wheel button event */
122 /* open selectboxes may overlap other active gadgets, so check them first */
123 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
125 if (gi->mapped && gi->active &&
126 gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
127 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
128 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
132 /* check all other gadgets */
133 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
135 if (gi->mapped && gi->active &&
136 mx >= gi->x && mx < gi->x + gi->width &&
137 my >= gi->y && my < gi->y + gi->height)
144 static void setTextAreaCursorExt(struct GadgetInfo *gi, boolean set_cursor_pos)
146 char *text = gi->textarea.value;
147 int area_xsize = gi->textarea.xsize;
148 int area_ysize = gi->textarea.ysize;
149 int cursor_position = gi->textarea.cursor_position;
150 int cursor_x = gi->textarea.cursor_x;
151 int cursor_y = gi->textarea.cursor_y;
158 if (set_cursor_pos) /* x/y => position */
160 if (y == cursor_y && (x == cursor_x || (x < cursor_x && *text == '\n')))
163 else /* position => x/y */
165 if (pos == cursor_position)
169 if (x + 1 >= area_xsize || *text == '\n')
171 if (y + 1 >= area_ysize)
184 gi->textarea.cursor_x = x;
185 gi->textarea.cursor_y = y;
186 gi->textarea.cursor_x_preferred = x;
187 gi->textarea.cursor_position = pos;
190 static void setTextAreaCursorXY(struct GadgetInfo *gi, int x, int y)
192 gi->textarea.cursor_x = x;
193 gi->textarea.cursor_y = y;
195 setTextAreaCursorExt(gi, TRUE);
198 static void setTextAreaCursorPosition(struct GadgetInfo *gi, int pos)
200 gi->textarea.cursor_position = pos;
202 setTextAreaCursorExt(gi, FALSE);
205 static void default_callback_info(void *ptr)
210 static void default_callback_action(void *ptr)
215 static void DrawGadget(struct GadgetInfo *gi, boolean pressed, boolean direct)
217 struct GadgetDesign *gd;
218 int state = (pressed ? GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
219 boolean redraw_selectbox = FALSE;
221 if (gi == NULL || gi->deactivated)
224 gd = (!gi->active ? &gi->alt_design[state] :
225 gi->checked ? &gi->alt_design[state] : &gi->design[state]);
229 case GD_TYPE_NORMAL_BUTTON:
230 case GD_TYPE_CHECK_BUTTON:
231 case GD_TYPE_RADIO_BUTTON:
233 BlitBitmapOnBackground(gd->bitmap, drawto,
234 gd->x, gd->y, gi->width, gi->height,
237 if (gi->deco.design.bitmap)
239 // make sure that decoration does not overlap gadget border
240 int deco_x = gi->deco.x + (pressed ? gi->deco.xshift : 0);
241 int deco_y = gi->deco.y + (pressed ? gi->deco.yshift : 0);
242 int deco_width = MIN(gi->deco.width, gi->width - deco_x);
243 int deco_height = MIN(gi->deco.height, gi->height - deco_y);
246 BlitBitmapMasked(gi->deco.design.bitmap, drawto,
247 gi->deco.design.x, gi->deco.design.y,
248 deco_width, deco_height,
249 gi->x + deco_x, gi->y + deco_y);
251 BlitBitmap(gi->deco.design.bitmap, drawto,
252 gi->deco.design.x, gi->deco.design.y,
253 deco_width, deco_height,
254 gi->x + deco_x, gi->y + deco_y);
259 case GD_TYPE_TEXT_BUTTON:
262 int font_nr = (gi->active ? gi->font_active : gi->font);
263 int font_width = getFontWidth(font_nr);
264 int border_x = gi->border.xsize;
265 int border_y = gi->border.ysize;
266 int text_size = strlen(gi->textbutton.value);
267 int text_start = (gi->width - text_size * font_width) / 2;
269 /* left part of gadget */
270 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
271 border_x, gi->height, gi->x, gi->y);
273 /* middle part of gadget */
274 for (i=0; i < gi->textbutton.size; i++)
275 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
276 font_width, gi->height,
277 gi->x + border_x + i * font_width, gi->y);
279 /* right part of gadget */
280 BlitBitmapOnBackground(gd->bitmap, drawto,
281 gd->x + gi->border.width - border_x, gd->y,
282 border_x, gi->height,
283 gi->x + gi->width - border_x, gi->y);
285 /* gadget text value */
287 gi->x + text_start + (pressed ? gi->deco.xshift : 0),
288 gi->y + border_y + (pressed ? gi->deco.yshift : 0),
289 gi->textbutton.value, font_nr, BLIT_MASKED);
293 case GD_TYPE_TEXT_INPUT_ALPHANUMERIC:
294 case GD_TYPE_TEXT_INPUT_NUMERIC:
298 char cursor_string[2];
299 char text[MAX_GADGET_TEXTSIZE + 1];
300 int font_nr = (pressed ? gi->font_active : gi->font);
301 int font_width = getFontWidth(font_nr);
302 int border_x = gi->border.xsize;
303 int border_y = gi->border.ysize;
305 /* left part of gadget */
306 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
307 border_x, gi->height, gi->x, gi->y);
309 /* middle part of gadget */
310 for (i=0; i < gi->textinput.size + 1; i++)
311 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
312 font_width, gi->height,
313 gi->x + border_x + i * font_width, gi->y);
315 /* right part of gadget */
316 BlitBitmapOnBackground(gd->bitmap, drawto,
317 gd->x + gi->border.width - border_x, gd->y,
318 border_x, gi->height,
319 gi->x + gi->width - border_x, gi->y);
322 strcpy(text, gi->textinput.value);
325 /* gadget text value */
327 gi->x + border_x, gi->y + border_y, text,
328 font_nr, BLIT_MASKED);
330 cursor_letter = gi->textinput.value[gi->textinput.cursor_position];
331 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
332 cursor_string[1] = '\0';
334 /* draw cursor, if active */
338 gi->textinput.cursor_position * font_width,
339 gi->y + border_y, cursor_string,
340 font_nr, BLIT_INVERSE);
344 case GD_TYPE_TEXT_AREA:
348 char cursor_string[2];
349 int font_nr = (pressed ? gi->font_active : gi->font);
350 int font_width = getFontWidth(font_nr);
351 int font_height = getFontHeight(font_nr);
352 int border_x = gi->border.xsize;
353 int border_y = gi->border.ysize;
354 int gd_height = 2 * border_y + font_height;
356 /* top left part of gadget border */
357 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
358 border_x, border_y, gi->x, gi->y);
360 /* top middle part of gadget border */
361 for (i=0; i < gi->textarea.xsize; i++)
362 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
363 font_width, border_y,
364 gi->x + border_x + i * font_width, gi->y);
366 /* top right part of gadget border */
367 BlitBitmapOnBackground(gd->bitmap, drawto,
368 gd->x + gi->border.width - border_x, gd->y,
370 gi->x + gi->width - border_x, gi->y);
372 /* left and right part of gadget border for each row */
373 for (i=0; i < gi->textarea.ysize; i++)
375 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
376 border_x, font_height,
377 gi->x, gi->y + border_y + i * font_height);
378 BlitBitmapOnBackground(gd->bitmap, drawto,
379 gd->x + gi->border.width - border_x,
381 border_x, font_height,
382 gi->x + gi->width - border_x,
383 gi->y + border_y + i * font_height);
386 /* bottom left part of gadget border */
387 BlitBitmapOnBackground(gd->bitmap, drawto,
388 gd->x, gd->y + gd_height - border_y,
390 gi->x, gi->y + gi->height - border_y);
392 /* bottom middle part of gadget border */
393 for (i=0; i < gi->textarea.xsize; i++)
394 BlitBitmapOnBackground(gd->bitmap, drawto,
396 gd->y + gd_height - border_y,
397 font_width, border_y,
398 gi->x + border_x + i * font_width,
399 gi->y + gi->height - border_y);
401 /* bottom right part of gadget border */
402 BlitBitmapOnBackground(gd->bitmap, drawto,
403 gd->x + gi->border.width - border_x,
404 gd->y + gd_height - border_y,
406 gi->x + gi->width - border_x,
407 gi->y + gi->height - border_y);
409 ClearRectangleOnBackground(drawto,
412 gi->width - 2 * border_x,
413 gi->height - 2 * border_y);
415 /* gadget text value */
416 DrawTextBuffer(gi->x + border_x, gi->y + border_y, gi->textarea.value,
417 font_nr, gi->textarea.xsize, -1, gi->textarea.ysize, 0,
418 BLIT_ON_BACKGROUND, FALSE, FALSE, FALSE);
420 cursor_letter = gi->textarea.value[gi->textarea.cursor_position];
421 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
422 cursor_string[1] = '\0';
424 /* draw cursor, if active */
427 gi->x + border_x + gi->textarea.cursor_x * font_width,
428 gi->y + border_y + gi->textarea.cursor_y * font_height,
430 font_nr, BLIT_INVERSE);
434 case GD_TYPE_SELECTBOX:
437 char text[MAX_GADGET_TEXTSIZE + 1];
438 int font_nr_default = (pressed ? gi->font_active : gi->font);
439 int font_nr = font_nr_default;
440 int font_width = getFontWidth(font_nr);
441 int font_height = getFontHeight(font_nr);
442 int border_x = gi->border.xsize;
443 int border_y = gi->border.ysize;
444 int button = gi->border.xsize_selectbutton;
445 int width_inner = gi->border.width - button - 2 * border_x;
446 int box_width = gi->selectbox.width;
447 int box_height = gi->selectbox.height;
449 /* left part of gadget */
450 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
451 border_x, gi->height, gi->x, gi->y);
453 /* middle part of gadget */
454 for (i=0; i < gi->selectbox.size; i++)
455 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
456 font_width, gi->height,
457 gi->x + border_x + i * font_width, gi->y);
459 /* button part of gadget */
460 BlitBitmapOnBackground(gd->bitmap, drawto,
461 gd->x + border_x + width_inner, gd->y,
463 gi->x + gi->width - border_x - button, gi->y);
465 /* right part of gadget */
466 BlitBitmapOnBackground(gd->bitmap, drawto,
467 gd->x + gi->border.width - border_x, gd->y,
468 border_x, gi->height,
469 gi->x + gi->width - border_x, gi->y);
472 strncpy(text, gi->selectbox.options[gi->selectbox.index].text,
474 text[gi->selectbox.size] = '\0';
477 font_nr = (OPTION_TEXT_SELECTABLE(gi, text) ? font_nr_default :
478 gi->font_unselectable);
480 /* gadget text value */
481 DrawTextExt(drawto, gi->x + border_x, gi->y + border_y, text,
482 font_nr, BLIT_MASKED);
486 if (!gi->selectbox.open)
488 gi->selectbox.open = TRUE;
489 gi->selectbox.stay_open = FALSE;
490 gi->selectbox.current_index = gi->selectbox.index;
492 /* save background under selectbox */
493 BlitBitmap(drawto, gfx.field_save_buffer,
494 gi->selectbox.x, gi->selectbox.y,
495 gi->selectbox.width, gi->selectbox.height,
496 gi->selectbox.x, gi->selectbox.y);
499 /* draw open selectbox */
501 /* top left part of gadget border */
502 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
504 gi->selectbox.x, gi->selectbox.y);
506 /* top middle part of gadget border */
507 for (i=0; i < gi->selectbox.size; i++)
508 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
509 font_width, border_y,
510 gi->selectbox.x + border_x + i * font_width,
513 /* top button part of gadget border */
514 BlitBitmapOnBackground(gd->bitmap, drawto,
515 gd->x + border_x + width_inner, gd->y,
517 gi->selectbox.x + box_width -border_x -button,
520 /* top right part of gadget border */
521 BlitBitmapOnBackground(gd->bitmap, drawto,
522 gd->x + gi->border.width - border_x, gd->y,
524 gi->selectbox.x + box_width - border_x,
527 /* left and right part of gadget border for each row */
528 for (i=0; i < gi->selectbox.num_values; i++)
530 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
531 border_x, font_height,
533 gi->selectbox.y + border_y + i*font_height);
534 BlitBitmapOnBackground(gd->bitmap, drawto,
535 gd->x + gi->border.width - border_x,
537 border_x, font_height,
538 gi->selectbox.x + box_width - border_x,
539 gi->selectbox.y + border_y + i*font_height);
542 /* bottom left part of gadget border */
543 BlitBitmapOnBackground(gd->bitmap, drawto,
544 gd->x, gd->y + gi->height - border_y,
547 gi->selectbox.y + box_height - border_y);
549 /* bottom middle part of gadget border */
550 for (i=0; i < gi->selectbox.size; i++)
551 BlitBitmapOnBackground(gd->bitmap, drawto,
553 gd->y + gi->height - border_y,
554 font_width, border_y,
555 gi->selectbox.x + border_x + i * font_width,
556 gi->selectbox.y + box_height - border_y);
558 /* bottom button part of gadget border */
559 BlitBitmapOnBackground(gd->bitmap, drawto,
560 gd->x + border_x + width_inner,
561 gd->y + gi->height - border_y,
563 gi->selectbox.x + box_width -border_x -button,
564 gi->selectbox.y + box_height - border_y);
566 /* bottom right part of gadget border */
567 BlitBitmapOnBackground(gd->bitmap, drawto,
568 gd->x + gi->border.width - border_x,
569 gd->y + gi->height - border_y,
571 gi->selectbox.x + box_width - border_x,
572 gi->selectbox.y + box_height - border_y);
574 ClearRectangleOnBackground(drawto,
575 gi->selectbox.x + border_x,
576 gi->selectbox.y + border_y,
577 gi->selectbox.width - 2 * border_x,
578 gi->selectbox.height - 2 * border_y);
580 /* selectbox text values */
581 for (i=0; i < gi->selectbox.num_values; i++)
583 int mask_mode = BLIT_MASKED;
585 strncpy(text, gi->selectbox.options[i].text, gi->selectbox.size);
586 text[gi->selectbox.size] = '\0';
588 font_nr = (OPTION_TEXT_SELECTABLE(gi, text) ? font_nr_default :
589 gi->font_unselectable);
591 if (i == gi->selectbox.current_index &&
592 OPTION_TEXT_SELECTABLE(gi, text))
594 FillRectangle(drawto,
595 gi->selectbox.x + border_x,
596 gi->selectbox.y + border_y + i * font_height,
597 gi->selectbox.width - 2 * border_x, font_height,
598 gi->selectbox.inverse_color);
600 /* prevent use of cursor graphic by drawing at least two chars */
602 text[gi->selectbox.size] = '\0';
604 mask_mode = BLIT_INVERSE;
608 gi->selectbox.x + border_x,
609 gi->selectbox.y + border_y + i * font_height, text,
613 redraw_selectbox = TRUE;
615 else if (gi->selectbox.open)
617 gi->selectbox.open = FALSE;
619 /* restore background under selectbox */
620 BlitBitmap(gfx.field_save_buffer, drawto,
621 gi->selectbox.x, gi->selectbox.y,
622 gi->selectbox.width, gi->selectbox.height,
623 gi->selectbox.x, gi->selectbox.y);
625 /* redraw closed selectbox */
626 DrawGadget(gi, FALSE, FALSE);
628 redraw_selectbox = TRUE;
633 case GD_TYPE_SCROLLBAR_VERTICAL:
637 int ypos = gi->y + gi->scrollbar.position;
638 int design_full = gi->width;
639 int design_body = design_full - 2 * gi->border.ysize;
640 int size_full = gi->scrollbar.size;
641 int size_body = size_full - 2 * gi->border.ysize;
642 int num_steps = size_body / design_body;
643 int step_size_remain = size_body - num_steps * design_body;
645 /* clear scrollbar area */
646 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
647 gi->width, gi->height);
649 /* upper part of gadget */
650 BlitBitmapOnBackground(gd->bitmap, drawto,
652 gi->width, gi->border.ysize,
655 /* middle part of gadget */
656 for (i=0; i < num_steps; i++)
657 BlitBitmapOnBackground(gd->bitmap, drawto,
658 gd->x, gd->y + gi->border.ysize,
659 gi->width, design_body,
661 ypos + gi->border.ysize + i * design_body);
663 /* remaining middle part of gadget */
664 if (step_size_remain > 0)
665 BlitBitmapOnBackground(gd->bitmap, drawto,
666 gd->x, gd->y + gi->border.ysize,
667 gi->width, step_size_remain,
669 ypos + gi->border.ysize
670 + num_steps * design_body);
672 /* lower part of gadget */
673 BlitBitmapOnBackground(gd->bitmap, drawto,
674 gd->x, gd->y + design_full - gi->border.ysize,
675 gi->width, gi->border.ysize,
676 xpos, ypos + size_full - gi->border.ysize);
680 case GD_TYPE_SCROLLBAR_HORIZONTAL:
683 int xpos = gi->x + gi->scrollbar.position;
685 int design_full = gi->height;
686 int design_body = design_full - 2 * gi->border.xsize;
687 int size_full = gi->scrollbar.size;
688 int size_body = size_full - 2 * gi->border.xsize;
689 int num_steps = size_body / design_body;
690 int step_size_remain = size_body - num_steps * design_body;
692 /* clear scrollbar area */
693 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
694 gi->width, gi->height);
696 /* left part of gadget */
697 BlitBitmapOnBackground(gd->bitmap, drawto,
699 gi->border.xsize, gi->height,
702 /* middle part of gadget */
703 for (i=0; i < num_steps; i++)
704 BlitBitmapOnBackground(gd->bitmap, drawto,
705 gd->x + gi->border.xsize, gd->y,
706 design_body, gi->height,
707 xpos + gi->border.xsize + i * design_body,
710 /* remaining middle part of gadget */
711 if (step_size_remain > 0)
712 BlitBitmapOnBackground(gd->bitmap, drawto,
713 gd->x + gi->border.xsize, gd->y,
714 step_size_remain, gi->height,
715 xpos + gi->border.xsize
716 + num_steps * design_body,
719 /* right part of gadget */
720 BlitBitmapOnBackground(gd->bitmap, drawto,
721 gd->x + design_full - gi->border.xsize, gd->y,
722 gi->border.xsize, gi->height,
723 xpos + size_full - gi->border.xsize, ypos);
731 // do not use direct gadget drawing anymore; this worked as a speed-up once,
732 // but would slow things down a lot now the screen is always fully redrawn
737 BlitBitmap(drawto, window,
738 gi->x, gi->y, gi->width, gi->height, gi->x, gi->y);
740 if (gi->type == GD_TYPE_SELECTBOX && redraw_selectbox)
741 BlitBitmap(drawto, window,
742 gi->selectbox.x, gi->selectbox.y,
743 gi->selectbox.width, gi->selectbox.height,
744 gi->selectbox.x, gi->selectbox.y);
751 redraw_mask |= (IN_GFX_FIELD_FULL(x, y) ? REDRAW_FIELD :
752 IN_GFX_DOOR_1(x, y) ? REDRAW_DOOR_1 :
753 IN_GFX_DOOR_2(x, y) ? REDRAW_DOOR_2 :
754 IN_GFX_DOOR_3(x, y) ? REDRAW_DOOR_3 : REDRAW_ALL);
758 static int get_minimal_size_for_numeric_input(int minmax_value)
760 int min_size = 1; /* value needs at least one digit */
763 /* add number of digits needed for absolute value */
764 for (i = 10; i <= ABS(minmax_value); i *= 10)
767 /* if min/max value is negative, add one digit for minus sign */
768 if (minmax_value < 0)
774 static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
778 if (gi == NULL || gi->deactivated)
781 while (tag != GDI_END)
786 gi->image_id = va_arg(ap, int);
790 gi->custom_id = va_arg(ap, int);
793 case GDI_CUSTOM_TYPE_ID:
794 gi->custom_type_id = va_arg(ap, int);
799 int max_textsize = MAX_INFO_TEXTSIZE;
800 char *text = va_arg(ap, char *);
803 strncpy(gi->info_text, text, max_textsize);
807 gi->info_text[max_textsize] = '\0';
812 gi->x = va_arg(ap, int);
816 gi->y = va_arg(ap, int);
820 gi->width = va_arg(ap, int);
824 gi->height = va_arg(ap, int);
828 gi->type = va_arg(ap, unsigned int);
832 gi->state = va_arg(ap, unsigned int);
836 gi->active = (boolean)va_arg(ap, int);
839 case GDI_DIRECT_DRAW:
840 gi->direct_draw = (boolean)va_arg(ap, int);
844 gi->checked = (boolean)va_arg(ap, int);
848 gi->radio_nr = va_arg(ap, unsigned int);
851 case GDI_NUMBER_VALUE:
852 gi->textinput.number_value = va_arg(ap, int);
853 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
854 strcpy(gi->textinput.last_value, gi->textinput.value);
855 gi->textinput.cursor_position = strlen(gi->textinput.value);
859 gi->textinput.number_min = va_arg(ap, int);
860 if (gi->textinput.number_value < gi->textinput.number_min)
862 gi->textinput.number_value = gi->textinput.number_min;
863 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
864 strcpy(gi->textinput.last_value, gi->textinput.value);
869 gi->textinput.number_max = va_arg(ap, int);
870 if (gi->textinput.number_value > gi->textinput.number_max)
872 gi->textinput.number_value = gi->textinput.number_max;
873 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
874 strcpy(gi->textinput.last_value, gi->textinput.value);
880 int max_textsize = MAX_GADGET_TEXTSIZE;
882 if (gi->textinput.size)
883 max_textsize = MIN(gi->textinput.size, MAX_GADGET_TEXTSIZE);
885 strncpy(gi->textinput.value, va_arg(ap, char *), max_textsize);
886 strcpy(gi->textinput.last_value, gi->textinput.value);
888 gi->textinput.value[max_textsize] = '\0';
889 gi->textinput.cursor_position = strlen(gi->textinput.value);
891 /* same tag also used for other gadget definitions */
892 strcpy(gi->textbutton.value, gi->textinput.value);
893 strcpy(gi->textarea.value, gi->textinput.value);
894 strcpy(gi->textarea.last_value, gi->textinput.value);
900 int tag_value = va_arg(ap, int);
901 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE);
903 gi->textinput.size = max_textsize;
904 gi->textinput.value[max_textsize] = '\0';
905 strcpy(gi->textinput.last_value, gi->textinput.value);
907 /* same tag also used for other gadget definitions */
909 gi->textarea.size = max_textsize;
910 gi->textarea.value[max_textsize] = '\0';
911 strcpy(gi->textarea.last_value, gi->textinput.value);
913 gi->textbutton.size = max_textsize;
914 gi->textbutton.value[max_textsize] = '\0';
916 gi->selectbox.size = gi->textinput.size;
921 gi->font = va_arg(ap, int);
922 if (gi->font_active == 0)
923 gi->font_active = gi->font;
924 if (gi->font_unselectable == 0)
925 gi->font_unselectable = gi->font;
928 case GDI_TEXT_FONT_ACTIVE:
929 gi->font_active = va_arg(ap, int);
932 case GDI_TEXT_FONT_UNSELECTABLE:
933 gi->font_unselectable = va_arg(ap, int);
936 case GDI_SELECTBOX_OPTIONS:
937 gi->selectbox.options = va_arg(ap, struct ValueTextInfo *);
940 case GDI_SELECTBOX_INDEX:
941 gi->selectbox.index = va_arg(ap, int);
944 case GDI_SELECTBOX_CHAR_UNSELECTABLE:
945 gi->selectbox.char_unselectable = (char)va_arg(ap, int);
948 case GDI_DESIGN_UNPRESSED:
949 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
950 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
951 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
954 case GDI_DESIGN_PRESSED:
955 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
956 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
957 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
960 case GDI_ALT_DESIGN_UNPRESSED:
961 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
962 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
963 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
966 case GDI_ALT_DESIGN_PRESSED:
967 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
968 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
969 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
972 case GDI_BORDER_SIZE:
973 gi->border.xsize = va_arg(ap, int);
974 gi->border.ysize = va_arg(ap, int);
977 case GDI_BORDER_SIZE_SELECTBUTTON:
978 gi->border.xsize_selectbutton = va_arg(ap, int);
981 case GDI_DESIGN_WIDTH:
982 gi->border.width = va_arg(ap, int);
985 case GDI_DECORATION_DESIGN:
986 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
987 gi->deco.design.x = va_arg(ap, int);
988 gi->deco.design.y = va_arg(ap, int);
991 case GDI_DECORATION_POSITION:
992 gi->deco.x = va_arg(ap, int);
993 gi->deco.y = va_arg(ap, int);
996 case GDI_DECORATION_SIZE:
997 gi->deco.width = va_arg(ap, int);
998 gi->deco.height = va_arg(ap, int);
1001 case GDI_DECORATION_SHIFTING:
1002 gi->deco.xshift = va_arg(ap, int);
1003 gi->deco.yshift = va_arg(ap, int);
1006 case GDI_DECORATION_MASKED:
1007 gi->deco.masked = (boolean)va_arg(ap, int);
1010 case GDI_EVENT_MASK:
1011 gi->event_mask = va_arg(ap, unsigned int);
1015 gi->drawing.area_xsize = va_arg(ap, int);
1016 gi->drawing.area_ysize = va_arg(ap, int);
1018 /* determine dependent values for drawing area gadget, if needed */
1019 if (gi->drawing.item_xsize != 0 && gi->drawing.item_ysize != 0)
1021 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
1022 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
1024 else if (gi->width != 0 && gi->height != 0)
1026 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
1027 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
1030 /* same tag also used for other gadget definitions */
1031 gi->textarea.xsize = gi->drawing.area_xsize;
1032 gi->textarea.ysize = gi->drawing.area_ysize;
1034 if (gi->type & GD_TYPE_TEXT_AREA) /* force recalculation */
1043 gi->drawing.item_xsize = va_arg(ap, int);
1044 gi->drawing.item_ysize = va_arg(ap, int);
1046 /* determine dependent values for drawing area gadget, if needed */
1047 if (gi->drawing.area_xsize != 0 && gi->drawing.area_ysize != 0)
1049 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
1050 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
1052 else if (gi->width != 0 && gi->height != 0)
1054 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
1055 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
1059 case GDI_SCROLLBAR_ITEMS_MAX:
1060 gi->scrollbar.items_max = va_arg(ap, int);
1063 case GDI_SCROLLBAR_ITEMS_VISIBLE:
1064 gi->scrollbar.items_visible = va_arg(ap, int);
1067 case GDI_SCROLLBAR_ITEM_POSITION:
1068 gi->scrollbar.item_position = va_arg(ap, int);
1071 case GDI_WHEEL_AREA_X:
1072 gi->wheelarea.x = va_arg(ap, int);
1075 case GDI_WHEEL_AREA_Y:
1076 gi->wheelarea.y = va_arg(ap, int);
1079 case GDI_WHEEL_AREA_WIDTH:
1080 gi->wheelarea.width = va_arg(ap, int);
1083 case GDI_WHEEL_AREA_HEIGHT:
1084 gi->wheelarea.height = va_arg(ap, int);
1087 case GDI_CALLBACK_INFO:
1088 gi->callback_info = va_arg(ap, gadget_function);
1091 case GDI_CALLBACK_ACTION:
1092 gi->callback_action = va_arg(ap, gadget_function);
1096 Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
1099 tag = va_arg(ap, int); /* read next tag */
1102 gi->deactivated = FALSE;
1104 /* check if gadget has undefined bitmaps */
1105 if (gi->type != GD_TYPE_DRAWING_AREA &&
1106 (gi->design[GD_BUTTON_UNPRESSED].bitmap == NULL ||
1107 gi->design[GD_BUTTON_PRESSED].bitmap == NULL))
1108 gi->deactivated = TRUE;
1110 /* check if gadget is placed off-screen */
1111 if (gi->x < 0 || gi->y < 0)
1112 gi->deactivated = TRUE;
1114 /* adjust gadget values in relation to other gadget values */
1116 if (gi->type & GD_TYPE_TEXT_INPUT)
1118 int font_nr = gi->font_active;
1119 int font_width = getFontWidth(font_nr);
1120 int font_height = getFontHeight(font_nr);
1121 int border_xsize = gi->border.xsize;
1122 int border_ysize = gi->border.ysize;
1124 if (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC)
1126 int number_min = gi->textinput.number_min;
1127 int number_max = gi->textinput.number_max;
1128 int min_size_min = get_minimal_size_for_numeric_input(number_min);
1129 int min_size_max = get_minimal_size_for_numeric_input(number_max);
1130 int min_size = MAX(min_size_min, min_size_max);
1132 /* expand gadget text input size, if maximal value is too large */
1133 if (gi->textinput.size < min_size)
1134 gi->textinput.size = min_size;
1137 gi->width = 2 * border_xsize + (gi->textinput.size + 1) * font_width;
1138 gi->height = 2 * border_ysize + font_height;
1141 if (gi->type & GD_TYPE_SELECTBOX)
1143 int font_nr = gi->font_active;
1144 int font_width = getFontWidth(font_nr);
1145 int font_height = getFontHeight(font_nr);
1146 int border_xsize = gi->border.xsize;
1147 int border_ysize = gi->border.ysize;
1148 int button_size = gi->border.xsize_selectbutton;
1149 int bottom_screen_border = gfx.sy + gfx.sysize - font_height;
1153 gi->width = 2 * border_xsize + gi->textinput.size*font_width +button_size;
1154 gi->height = 2 * border_ysize + font_height;
1156 if (gi->selectbox.options == NULL)
1157 Error(ERR_EXIT, "selectbox gadget incomplete (missing options array)");
1159 gi->selectbox.num_values = 0;
1160 while (gi->selectbox.options[gi->selectbox.num_values].text != NULL)
1161 gi->selectbox.num_values++;
1163 /* calculate values for open selectbox */
1164 gi->selectbox.width = gi->width;
1165 gi->selectbox.height =
1166 2 * border_ysize + gi->selectbox.num_values * font_height;
1168 gi->selectbox.x = gi->x;
1169 gi->selectbox.y = gi->y + gi->height;
1170 if (gi->selectbox.y + gi->selectbox.height > bottom_screen_border)
1171 gi->selectbox.y = gi->y - gi->selectbox.height;
1172 if (gi->selectbox.y < 0)
1173 gi->selectbox.y = bottom_screen_border - gi->selectbox.height;
1175 getFontCharSource(font_nr, FONT_ASCII_CURSOR, &src_bitmap, &src_x, &src_y);
1176 src_x += font_width / 2;
1177 src_y += font_height / 2;
1179 /* there may be esoteric cases with missing or too small font bitmap */
1180 if (src_bitmap != NULL &&
1181 src_x < src_bitmap->width && src_y < src_bitmap->height)
1182 gi->selectbox.inverse_color = GetPixel(src_bitmap, src_x, src_y);
1184 /* always start with closed selectbox */
1185 gi->selectbox.open = FALSE;
1188 if (gi->type & GD_TYPE_TEXT_INPUT_NUMERIC)
1190 struct GadgetTextInput *text = &gi->textinput;
1191 int value = text->number_value;
1193 text->number_value = (value < text->number_min ? text->number_min :
1194 value > text->number_max ? text->number_max :
1197 sprintf(text->value, "%d", text->number_value);
1200 if (gi->type & GD_TYPE_TEXT_BUTTON)
1202 int font_nr = gi->font_active;
1203 int font_width = getFontWidth(font_nr);
1204 int font_height = getFontHeight(font_nr);
1205 int border_xsize = gi->border.xsize;
1206 int border_ysize = gi->border.ysize;
1208 gi->width = 2 * border_xsize + gi->textbutton.size * font_width;
1209 gi->height = 2 * border_ysize + font_height;
1212 if (gi->type & GD_TYPE_SCROLLBAR)
1214 struct GadgetScrollbar *gs = &gi->scrollbar;
1215 int scrollbar_size_cmp;
1217 if (gi->width == 0 || gi->height == 0 ||
1218 gs->items_max == 0 || gs->items_visible == 0)
1219 Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
1221 /* calculate internal scrollbar values */
1222 gs->size_min = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1223 gi->width : gi->height);
1224 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1225 gi->height : gi->width);
1227 scrollbar_size_cmp = gs->size_max * gs->items_visible / gs->items_max;
1228 gs->size = MAX(scrollbar_size_cmp, gs->size_min);
1229 gs->size_max_cmp = (gs->size_max - (gs->size - scrollbar_size_cmp));
1231 gs->position = gs->size_max_cmp * gs->item_position / gs->items_max;
1232 gs->position_max = gs->size_max - gs->size;
1233 gs->correction = gs->size_max / gs->items_max / 2;
1235 /* finetuning for maximal right/bottom position */
1236 if (gs->item_position == gs->items_max - gs->items_visible)
1237 gs->position = gs->position_max;
1240 if (gi->type & GD_TYPE_TEXT_AREA)
1242 int font_nr = gi->font_active;
1243 int font_width = getFontWidth(font_nr);
1244 int font_height = getFontHeight(font_nr);
1245 int border_xsize = gi->border.xsize;
1246 int border_ysize = gi->border.ysize;
1248 if (gi->width == 0 || gi->height == 0)
1250 gi->width = 2 * border_xsize + gi->textarea.xsize * font_width;
1251 gi->height = 2 * border_ysize + gi->textarea.ysize * font_height;
1255 gi->textarea.xsize = (gi->width - 2 * border_xsize) / font_width;
1256 gi->textarea.ysize = (gi->height - 2 * border_ysize) / font_height;
1261 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
1265 va_start(ap, first_tag);
1266 HandleGadgetTags(gi, first_tag, ap);
1272 void RedrawGadget(struct GadgetInfo *gi)
1274 if (gi == NULL || gi->deactivated)
1278 DrawGadget(gi, gi->state, gi->direct_draw);
1281 struct GadgetInfo *CreateGadget(int first_tag, ...)
1283 struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
1286 /* always start with reliable default values */
1287 new_gadget->id = getNewGadgetID();
1288 new_gadget->image_id = -1;
1289 new_gadget->callback_info = default_callback_info;
1290 new_gadget->callback_action = default_callback_action;
1291 new_gadget->active = TRUE;
1292 new_gadget->direct_draw = TRUE;
1294 new_gadget->next = NULL;
1296 va_start(ap, first_tag);
1297 HandleGadgetTags(new_gadget, first_tag, ap);
1300 /* insert new gadget into global gadget list */
1301 if (gadget_list_last_entry)
1303 gadget_list_last_entry->next = new_gadget;
1304 gadget_list_last_entry = gadget_list_last_entry->next;
1307 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
1312 void FreeGadget(struct GadgetInfo *gi)
1314 struct GadgetInfo *gi_previous = gadget_list_first_entry;
1319 /* prevent "last_info_gi" from pointing to memory that will be freed */
1320 if (last_info_gi == gi)
1321 last_info_gi = NULL;
1323 while (gi_previous != NULL && gi_previous->next != gi)
1324 gi_previous = gi_previous->next;
1326 if (gi == gadget_list_first_entry)
1327 gadget_list_first_entry = gi->next;
1329 if (gi == gadget_list_last_entry)
1330 gadget_list_last_entry = gi_previous;
1332 if (gi_previous != NULL)
1333 gi_previous->next = gi->next;
1338 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
1340 if (gi->type != GD_TYPE_TEXT_INPUT_NUMERIC)
1343 gi->textinput.number_value = atoi(gi->textinput.value);
1345 if (gi->textinput.number_value < gi->textinput.number_min)
1346 gi->textinput.number_value = gi->textinput.number_min;
1347 if (gi->textinput.number_value > gi->textinput.number_max)
1348 gi->textinput.number_value = gi->textinput.number_max;
1350 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
1352 if (gi->textinput.cursor_position < 0)
1353 gi->textinput.cursor_position = 0;
1354 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1355 gi->textinput.cursor_position = strlen(gi->textinput.value);
1358 /* global pointer to gadget actually in use (when mouse button pressed) */
1359 static struct GadgetInfo *last_gi = NULL;
1361 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
1363 if (gi == NULL || gi->deactivated || gi->mapped)
1369 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
1372 void MapGadget(struct GadgetInfo *gi)
1374 MapGadgetExt(gi, TRUE);
1377 void UnmapGadget(struct GadgetInfo *gi)
1379 if (gi == NULL || gi->deactivated || !gi->mapped)
1388 #define MAX_NUM_GADGETS 1024
1389 #define MULTIMAP_UNMAP (1 << 0)
1390 #define MULTIMAP_REMAP (1 << 1)
1391 #define MULTIMAP_REDRAW (1 << 2)
1392 #define MULTIMAP_PLAYFIELD (1 << 3)
1393 #define MULTIMAP_DOOR_1 (1 << 4)
1394 #define MULTIMAP_DOOR_2 (1 << 5)
1395 #define MULTIMAP_DOOR_3 (1 << 6)
1396 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
1401 static void MultiMapGadgets(int mode)
1403 struct GadgetInfo *gi = gadget_list_first_entry;
1404 static boolean map_state[MAX_NUM_GADGETS];
1412 if ((mode & MULTIMAP_PLAYFIELD && IN_GFX_FIELD_FULL(x, y)) ||
1413 (mode & MULTIMAP_DOOR_1 && IN_GFX_DOOR_1(x, y)) ||
1414 (mode & MULTIMAP_DOOR_2 && IN_GFX_DOOR_2(x, y)) ||
1415 (mode & MULTIMAP_DOOR_3 && IN_GFX_DOOR_3(x, y)) ||
1416 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
1418 if (mode & MULTIMAP_UNMAP)
1420 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
1425 if (map_state[map_count++ % MAX_NUM_GADGETS])
1426 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
1434 void UnmapAllGadgets()
1436 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
1439 void RemapAllGadgets()
1441 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
1444 boolean anyTextInputGadgetActive()
1446 return (last_gi && (last_gi->type & GD_TYPE_TEXT_INPUT) && last_gi->mapped);
1449 boolean anyTextAreaGadgetActive()
1451 return (last_gi && (last_gi->type & GD_TYPE_TEXT_AREA) && last_gi->mapped);
1454 boolean anySelectboxGadgetActive()
1456 return (last_gi && (last_gi->type & GD_TYPE_SELECTBOX) && last_gi->mapped);
1459 boolean anyScrollbarGadgetActive()
1461 return (last_gi && (last_gi->type & GD_TYPE_SCROLLBAR) && last_gi->mapped);
1464 boolean anyTextGadgetActive()
1466 return (anyTextInputGadgetActive() ||
1467 anyTextAreaGadgetActive() ||
1468 anySelectboxGadgetActive());
1471 static boolean insideSelectboxLine(struct GadgetInfo *gi, int mx, int my)
1473 return (gi != NULL &&
1474 gi->type & GD_TYPE_SELECTBOX &&
1475 mx >= gi->x && mx < gi->x + gi->width &&
1476 my >= gi->y && my < gi->y + gi->height);
1479 static boolean insideSelectboxArea(struct GadgetInfo *gi, int mx, int my)
1481 return (gi != NULL &&
1482 gi->type & GD_TYPE_SELECTBOX &&
1483 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
1484 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height);
1487 void ClickOnGadget(struct GadgetInfo *gi, int button)
1489 if (gi == NULL || gi->deactivated || !gi->mapped)
1492 /* simulate releasing mouse button over last gadget, if still pressed */
1494 HandleGadgets(-1, -1, 0);
1496 /* simulate pressing mouse button over specified gadget */
1497 HandleGadgets(gi->x, gi->y, button);
1499 /* simulate releasing mouse button over specified gadget */
1500 HandleGadgets(gi->x, gi->y, 0);
1503 boolean HandleGadgets(int mx, int my, int button)
1505 static unsigned int pressed_delay = 0;
1506 static unsigned int pressed_delay_value = GADGET_FRAME_DELAY;
1507 static int last_button = 0;
1508 static int last_mx = 0, last_my = 0;
1509 static int pressed_mx = 0, pressed_my = 0;
1510 static boolean keep_selectbox_open = FALSE;
1511 static boolean gadget_stopped = FALSE;
1512 int scrollbar_mouse_pos = 0;
1513 struct GadgetInfo *new_gi, *gi;
1514 boolean press_event;
1515 boolean release_event;
1516 boolean mouse_moving;
1517 boolean mouse_inside_select_line;
1518 boolean mouse_inside_select_area;
1519 boolean mouse_released_where_pressed;
1520 boolean gadget_pressed;
1521 boolean gadget_pressed_repeated;
1522 boolean gadget_pressed_off_borders;
1523 boolean gadget_pressed_inside_select_line;
1524 boolean gadget_pressed_delay_reached;
1525 boolean gadget_moving;
1526 boolean gadget_moving_inside;
1527 boolean gadget_moving_off_borders;
1528 boolean gadget_draggable;
1529 boolean gadget_dragging;
1530 boolean gadget_released;
1531 boolean gadget_released_inside;
1532 boolean gadget_released_inside_select_area;
1533 boolean gadget_released_off_borders;
1534 boolean changed_position = FALSE;
1536 /* check if there are any gadgets defined */
1537 if (gadget_list_first_entry == NULL)
1540 /* simulated release of mouse button over last gadget */
1541 if (mx == -1 && my == -1 && button == 0)
1547 /* check which gadget is under the mouse pointer */
1548 new_gi = getGadgetInfoFromMousePosition(mx, my, button);
1550 /* check if button state has changed since last invocation */
1551 press_event = (button != 0 && last_button == 0);
1552 release_event = (button == 0 && last_button != 0);
1553 last_button = button;
1555 /* check if mouse has been moved since last invocation */
1556 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
1560 if (press_event && new_gi != last_gi)
1566 mouse_released_where_pressed =
1567 (release_event && mx == pressed_mx && my == pressed_my);
1569 mouse_inside_select_line = insideSelectboxLine(new_gi, mx, my);
1570 mouse_inside_select_area = insideSelectboxArea(new_gi, mx, my);
1572 gadget_pressed_off_borders = (press_event && new_gi != last_gi);
1574 gadget_pressed_inside_select_line =
1575 (press_event && new_gi != NULL &&
1576 new_gi->type & GD_TYPE_SELECTBOX && new_gi->selectbox.open &&
1577 insideSelectboxLine(new_gi, mx, my));
1579 /* if mouse button pressed outside text or selectbox gadget, deactivate it */
1580 if (anyTextGadgetActive() &&
1581 (gadget_pressed_off_borders ||
1582 (gadget_pressed_inside_select_line && !mouse_inside_select_area)))
1584 struct GadgetInfo *gi = last_gi;
1585 boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_LEAVING) != 0);
1587 /* check if text gadget has changed its value */
1588 if (gi->type & GD_TYPE_TEXT_INPUT)
1590 CheckRangeOfNumericInputGadget(gi);
1592 if (!strEqual(gi->textinput.last_value, gi->textinput.value))
1593 strcpy(gi->textinput.last_value, gi->textinput.value);
1595 gadget_changed = FALSE;
1598 /* selectbox does not change its value when closed by clicking outside */
1599 if (gi->type & GD_TYPE_SELECTBOX)
1600 gadget_changed = FALSE;
1602 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1604 gi->event.type = GD_EVENT_TEXT_LEAVING;
1606 if (gadget_changed && !(gi->type & GD_TYPE_SELECTBOX))
1607 gi->callback_action(gi);
1611 if (gadget_pressed_inside_select_line)
1618 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
1619 gadget_pressed_repeated =
1620 (button != 0 && last_gi != NULL && new_gi == last_gi);
1622 gadget_pressed_delay_reached =
1623 DelayReached(&pressed_delay, pressed_delay_value);
1625 gadget_released = (release_event && last_gi != NULL);
1626 gadget_released_inside = (gadget_released && new_gi == last_gi);
1627 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
1629 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
1630 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
1631 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
1633 /* when handling selectbox, set additional state values */
1634 if (gadget_released_inside && (last_gi->type & GD_TYPE_SELECTBOX))
1635 gadget_released_inside_select_area = insideSelectboxArea(last_gi, mx, my);
1637 gadget_released_inside_select_area = FALSE;
1639 /* setting state for handling over-large selectbox */
1640 if (keep_selectbox_open && (press_event || !mouse_inside_select_line))
1641 keep_selectbox_open = FALSE;
1643 /* if new gadget pressed, store this gadget */
1647 /* 'gi' is actually handled gadget */
1650 /* if gadget is scrollbar, choose mouse position value */
1651 if (gi && gi->type & GD_TYPE_SCROLLBAR)
1652 scrollbar_mouse_pos =
1653 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
1655 /* if mouse button released, no gadget needs to be handled anymore */
1656 if (gadget_released)
1658 if (gi->type & GD_TYPE_SELECTBOX &&
1659 (keep_selectbox_open ||
1660 mouse_released_where_pressed ||
1661 !gadget_released_inside_select_area ||
1662 !CURRENT_OPTION_SELECTABLE(gi))) /* selectbox stays open */
1664 gi->selectbox.stay_open = TRUE;
1668 else if (!(gi->type & GD_TYPE_TEXT_INPUT ||
1669 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1673 /* modify event position values even if no gadget is pressed */
1674 if (button == 0 && !release_event)
1677 /* if new gadget or if no gadget was pressed, release stopped processing */
1678 if (gadget_pressed || new_gi == NULL)
1679 gadget_stopped = FALSE;
1681 /* if gadget was stopped while being handled, stop gadget processing here */
1687 int last_x = gi->event.x;
1688 int last_y = gi->event.y;
1689 int last_mx = gi->event.mx;
1690 int last_my = gi->event.my;
1692 gi->event.x = gi->event.mx = mx - gi->x;
1693 gi->event.y = gi->event.my = my - gi->y;
1695 if (gi->type == GD_TYPE_DRAWING_AREA)
1697 gi->event.x /= gi->drawing.item_xsize;
1698 gi->event.y /= gi->drawing.item_ysize;
1700 if (last_x != gi->event.x || last_y != gi->event.y ||
1701 ((last_mx != gi->event.mx || last_my != gi->event.my) &&
1702 gi->event_mask & GD_EVENT_PIXEL_PRECISE))
1703 changed_position = TRUE;
1705 else if (gi->type & GD_TYPE_TEXT_INPUT && button != 0 && !motion_status)
1707 int old_cursor_position = gi->textinput.cursor_position;
1709 /* if mouse button pressed inside activated text gadget, set cursor */
1710 gi->textinput.cursor_position =
1711 (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1713 if (gi->textinput.cursor_position < 0)
1714 gi->textinput.cursor_position = 0;
1715 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1716 gi->textinput.cursor_position = strlen(gi->textinput.value);
1718 if (gi->textinput.cursor_position != old_cursor_position)
1719 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1722 StartTextInput(gi->x, gi->y, gi->width, gi->height);
1724 else if (gi->type & GD_TYPE_TEXT_AREA && button != 0 && !motion_status)
1726 int old_cursor_position = gi->textarea.cursor_position;
1727 int x = (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1728 int y = (my - gi->y - gi->border.ysize) / getFontHeight(gi->font);
1730 x = (x < 0 ? 0 : x >= gi->textarea.xsize ? gi->textarea.xsize - 1 : x);
1731 y = (y < 0 ? 0 : y >= gi->textarea.ysize ? gi->textarea.ysize - 1 : y);
1733 setTextAreaCursorXY(gi, x, y);
1735 if (gi->textarea.cursor_position != old_cursor_position)
1736 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1739 StartTextInput(gi->x, gi->y, gi->width, gi->height);
1741 else if (gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
1742 !keep_selectbox_open)
1744 int old_index = gi->selectbox.current_index;
1746 /* if mouse moving inside activated selectbox, select value */
1747 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1748 gi->selectbox.current_index =
1749 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1751 if (gi->selectbox.current_index < 0)
1752 gi->selectbox.current_index = 0;
1753 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1754 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1756 if (gi->selectbox.current_index != old_index)
1757 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1761 /* handle gadget popup info text */
1762 if (last_info_gi != new_gi ||
1763 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
1765 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
1767 new_gi->event.type = GD_EVENT_INFO_ENTERING;
1768 new_gi->callback_info(new_gi);
1770 else if (last_info_gi != NULL && last_info_gi->mapped)
1772 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
1773 last_info_gi->callback_info(last_info_gi);
1776 last_info_gi = new_gi;
1779 gadget_draggable = (gi && gi->type & GD_TYPE_SCROLLBAR);
1781 /* reset drag position for newly pressed scrollbar to "not dragging" */
1782 if (gadget_pressed && gadget_draggable)
1783 gi->scrollbar.drag_position = -1;
1785 gadget_dragging = (gadget_draggable && gi->scrollbar.drag_position != -1);
1787 /* clicking next to a scrollbar to move it is not considered "moving" */
1788 if (gadget_draggable && !gadget_dragging)
1789 gadget_moving = FALSE;
1791 /* when leaving scrollbar area when jump-scrolling, stop gadget processing */
1792 if (gadget_draggable && !gadget_dragging && gadget_moving_off_borders)
1793 gadget_stopped = TRUE;
1795 if ((gadget_pressed) ||
1796 (gadget_pressed_repeated && gadget_pressed_delay_reached))
1798 if (gadget_pressed) /* gadget pressed the first time */
1800 /* initialize delay counter */
1801 DelayReached(&pressed_delay, 0);
1803 /* start gadget delay with longer delay after first click on gadget */
1804 pressed_delay_value = GADGET_FRAME_DELAY_FIRST;
1806 else /* gadget hold pressed for some time */
1808 /* after first repeated gadget click, continue with shorter delay value */
1809 pressed_delay_value = GADGET_FRAME_DELAY;
1812 if (gi->type & GD_TYPE_SCROLLBAR && !gadget_dragging)
1814 int mpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx : my);
1815 int gpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? gi->x : gi->y);
1816 int slider_start = gpos + gi->scrollbar.position;
1817 int slider_end = gpos + gi->scrollbar.position + gi->scrollbar.size - 1;
1818 boolean inside_slider = (mpos >= slider_start && mpos <= slider_end);
1820 if (IS_WHEEL_BUTTON(button) || !inside_slider)
1822 /* click scrollbar one scrollbar length up/left or down/right */
1824 struct GadgetScrollbar *gs = &gi->scrollbar;
1825 int old_item_position = gs->item_position;
1826 int item_steps = gs->items_visible - 1;
1827 int item_direction = (mpos < gpos + gi->scrollbar.position ? -1 : +1);
1829 if (IS_WHEEL_BUTTON(button))
1831 boolean scroll_single_step = ((GetKeyModState() & KMOD_Alt) != 0);
1833 item_steps = (scroll_single_step ? 1 : wheel_steps);
1834 item_direction = (button == MB_WHEEL_UP ||
1835 button == MB_WHEEL_LEFT ? -1 : +1);
1838 changed_position = FALSE;
1840 gs->item_position += item_steps * item_direction;
1842 if (gs->item_position < 0)
1843 gs->item_position = 0;
1844 else if (gs->item_position > gs->items_max - gs->items_visible)
1845 gs->item_position = gs->items_max - gs->items_visible;
1847 if (old_item_position != gs->item_position)
1849 gi->event.item_position = gs->item_position;
1850 changed_position = TRUE;
1853 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
1856 gi->state = GD_BUTTON_UNPRESSED;
1857 gi->event.type = GD_EVENT_MOVING;
1858 gi->event.off_borders = FALSE;
1860 if (gi->event_mask & GD_EVENT_MOVING && changed_position)
1861 gi->callback_action(gi);
1867 /* don't handle this scrollbar anymore when mouse position reached */
1868 if (gadget_pressed_repeated)
1870 gadget_stopped = TRUE;
1880 PlayGadgetSoundActivating();
1882 if (gi->type == GD_TYPE_CHECK_BUTTON)
1884 gi->checked = !gi->checked;
1886 else if (gi->type == GD_TYPE_RADIO_BUTTON)
1888 struct GadgetInfo *rgi = gadget_list_first_entry;
1893 rgi->type == GD_TYPE_RADIO_BUTTON &&
1894 rgi->radio_nr == gi->radio_nr &&
1897 rgi->checked = FALSE;
1898 DrawGadget(rgi, DG_UNPRESSED, rgi->direct_draw);
1906 else if (gi->type & GD_TYPE_SCROLLBAR)
1908 int mpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx : my);
1909 int gpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? gi->x : gi->y);
1910 int slider_start = gpos + gi->scrollbar.position;
1911 int slider_end = gpos + gi->scrollbar.position + gi->scrollbar.size - 1;
1912 boolean inside_slider = (mpos >= slider_start && mpos <= slider_end);
1914 if (!IS_WHEEL_BUTTON(button) && inside_slider)
1916 /* start dragging scrollbar */
1917 gi->scrollbar.drag_position =
1918 scrollbar_mouse_pos - gi->scrollbar.position;
1921 else if (gi->type & GD_TYPE_SELECTBOX)
1923 /* keep selectbox open in case of over-large selectbox */
1924 keep_selectbox_open = (mouse_inside_select_line &&
1925 mouse_inside_select_area);
1928 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1930 gi->state = GD_BUTTON_PRESSED;
1931 gi->event.type = GD_EVENT_PRESSED;
1932 gi->event.button = button;
1933 gi->event.off_borders = FALSE;
1935 if (gi->event_mask & GD_EVENT_PRESSED)
1936 gi->callback_action(gi);
1939 if (gadget_pressed_repeated)
1941 gi->event.type = GD_EVENT_PRESSED;
1943 if (gi->event_mask & GD_EVENT_REPEATED && gadget_pressed_delay_reached)
1944 gi->callback_action(gi);
1949 if (gi->type & GD_TYPE_BUTTON)
1951 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
1952 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1953 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
1954 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1956 else if (gi->type & GD_TYPE_SELECTBOX && !keep_selectbox_open)
1958 int old_index = gi->selectbox.current_index;
1960 /* if mouse moving inside activated selectbox, select value */
1961 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1962 gi->selectbox.current_index =
1963 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1965 if (gi->selectbox.current_index < 0)
1966 gi->selectbox.current_index = 0;
1967 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1968 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1970 if (gi->selectbox.current_index != old_index)
1971 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1973 else if (gi->type & GD_TYPE_SCROLLBAR)
1975 struct GadgetScrollbar *gs = &gi->scrollbar;
1976 int old_item_position = gs->item_position;
1978 gs->position = scrollbar_mouse_pos - gs->drag_position;
1980 /* make sure to always precisely reach end positions when dragging */
1981 if (gs->position <= 0)
1984 gs->item_position = 0;
1986 else if (gs->position >= gs->position_max)
1988 gs->position = gs->position_max;
1989 gs->item_position = gs->items_max - gs->items_visible;
1994 gs->items_max * (gs->position + gs->correction) / gs->size_max_cmp;
1997 if (gs->item_position < 0)
1998 gs->item_position = 0;
1999 if (gs->item_position > gs->items_max - 1)
2000 gs->item_position = gs->items_max - 1;
2002 if (old_item_position != gs->item_position)
2004 gi->event.item_position = gs->item_position;
2005 changed_position = TRUE;
2008 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2011 gi->state = (gadget_moving_inside || gadget_draggable ?
2012 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
2013 gi->event.type = GD_EVENT_MOVING;
2014 gi->event.off_borders = gadget_moving_off_borders;
2016 if (gi->event_mask & GD_EVENT_MOVING && changed_position &&
2017 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
2018 gi->callback_action(gi);
2021 if (gadget_released_inside)
2023 boolean deactivate_gadget = TRUE;
2024 boolean gadget_changed = TRUE;
2026 if (gi->type & GD_TYPE_SELECTBOX)
2028 if (keep_selectbox_open ||
2029 mouse_released_where_pressed ||
2030 !gadget_released_inside_select_area ||
2031 !CURRENT_OPTION_SELECTABLE(gi)) /* selectbox stays open */
2033 deactivate_gadget = FALSE;
2034 gadget_changed = FALSE;
2036 else if (gi->selectbox.index != gi->selectbox.current_index)
2037 gi->selectbox.index = gi->selectbox.current_index;
2039 gadget_changed = FALSE;
2042 if (deactivate_gadget &&
2043 !(gi->type & GD_TYPE_TEXT_INPUT ||
2044 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
2045 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2047 gi->state = GD_BUTTON_UNPRESSED;
2048 gi->event.type = GD_EVENT_RELEASED;
2050 if ((gi->event_mask & GD_EVENT_RELEASED) && gadget_changed)
2052 gi->callback_action(gi);
2056 if (gadget_released_off_borders)
2058 if (gi->type & GD_TYPE_SCROLLBAR)
2059 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2061 gi->state = GD_BUTTON_UNPRESSED;
2062 gi->event.type = GD_EVENT_RELEASED;
2064 if (gi->event_mask & GD_EVENT_RELEASED &&
2065 gi->event_mask & GD_EVENT_OFF_BORDERS)
2066 gi->callback_action(gi);
2069 /* handle gadgets unmapped/mapped between pressing and releasing */
2070 if (release_event && !gadget_released && new_gi)
2071 new_gi->state = GD_BUTTON_UNPRESSED;
2073 return (gadget_pressed || gadget_pressed_repeated ||
2074 gadget_released || gadget_moving);
2077 static void insertCharIntoTextArea(struct GadgetInfo *gi, char c)
2079 char text[MAX_GADGET_TEXTSIZE + 1];
2080 int cursor_position = gi->textarea.cursor_position;
2082 if (strlen(gi->textarea.value) >= MAX_GADGET_TEXTSIZE) /* no space left */
2085 strcpy(text, gi->textarea.value);
2086 strcpy(&gi->textarea.value[cursor_position + 1], &text[cursor_position]);
2087 gi->textarea.value[cursor_position] = c;
2089 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2092 boolean HandleGadgetsKeyInput(Key key)
2094 struct GadgetInfo *gi = last_gi;
2096 if (gi == NULL || gi->deactivated || !gi->mapped ||
2097 !(gi->type & GD_TYPE_TEXT_INPUT ||
2098 gi->type & GD_TYPE_TEXT_AREA ||
2099 gi->type & GD_TYPE_SELECTBOX))
2102 if (key == KSYM_Escape)
2106 else if (key == KSYM_Return) /* valid for both text input and selectbox */
2108 boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_RETURN) != 0);
2110 if (gi->type & GD_TYPE_TEXT_INPUT)
2112 CheckRangeOfNumericInputGadget(gi);
2114 if (!strEqual(gi->textinput.last_value, gi->textinput.value))
2115 strcpy(gi->textinput.last_value, gi->textinput.value);
2117 gadget_changed = FALSE;
2121 else if (gi->type & GD_TYPE_SELECTBOX)
2123 if (gi->selectbox.index != gi->selectbox.current_index)
2124 gi->selectbox.index = gi->selectbox.current_index;
2126 gadget_changed = FALSE;
2129 if (gi->type & GD_TYPE_TEXT_AREA)
2131 insertCharIntoTextArea(gi, '\n');
2133 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2137 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2139 gi->event.type = GD_EVENT_TEXT_RETURN;
2145 gi->callback_action(gi);
2147 else if (gi->type & GD_TYPE_TEXT_INPUT) /* only valid for text input */
2149 char text[MAX_GADGET_TEXTSIZE + 1];
2150 int text_length = strlen(gi->textinput.value);
2151 int cursor_pos = gi->textinput.cursor_position;
2152 char letter = getCharFromKey(key);
2153 boolean legal_letter = (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC ?
2154 letter >= '0' && letter <= '9' :
2157 if (legal_letter && text_length < gi->textinput.size)
2159 strcpy(text, gi->textinput.value);
2160 strcpy(&gi->textinput.value[cursor_pos + 1], &text[cursor_pos]);
2161 gi->textinput.value[cursor_pos] = letter;
2162 gi->textinput.cursor_position++;
2164 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2166 else if (key == KSYM_Left && cursor_pos > 0)
2168 gi->textinput.cursor_position--;
2170 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2172 else if (key == KSYM_Right && cursor_pos < text_length)
2174 gi->textinput.cursor_position++;
2176 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2178 else if (key == KSYM_BackSpace && cursor_pos > 0)
2180 strcpy(text, gi->textinput.value);
2181 strcpy(&gi->textinput.value[cursor_pos - 1], &text[cursor_pos]);
2182 gi->textinput.cursor_position--;
2184 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2186 else if (key == KSYM_Delete && cursor_pos < text_length)
2188 strcpy(text, gi->textinput.value);
2189 strcpy(&gi->textinput.value[cursor_pos], &text[cursor_pos + 1]);
2191 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2194 else if (gi->type & GD_TYPE_TEXT_AREA) /* only valid for text area */
2196 char text[MAX_GADGET_TEXTSIZE + 1];
2197 int text_length = strlen(gi->textarea.value);
2198 int area_ysize = gi->textarea.ysize;
2199 int cursor_x_pref = gi->textarea.cursor_x_preferred;
2200 int cursor_y = gi->textarea.cursor_y;
2201 int cursor_pos = gi->textarea.cursor_position;
2202 char letter = getCharFromKey(key);
2203 boolean legal_letter = (letter != 0);
2207 insertCharIntoTextArea(gi, letter);
2209 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2211 else if (key == KSYM_Left && cursor_pos > 0)
2213 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2215 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2217 else if (key == KSYM_Right && cursor_pos < text_length)
2219 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2221 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2223 else if (key == KSYM_Up && cursor_y > 0)
2225 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y - 1);
2226 gi->textarea.cursor_x_preferred = cursor_x_pref;
2228 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2230 else if (key == KSYM_Down && cursor_y < area_ysize - 1)
2232 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y + 1);
2233 gi->textarea.cursor_x_preferred = cursor_x_pref;
2235 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2237 else if (key == KSYM_BackSpace && cursor_pos > 0)
2239 strcpy(text, gi->textarea.value);
2240 strcpy(&gi->textarea.value[cursor_pos - 1], &text[cursor_pos]);
2242 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2244 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2246 else if (key == KSYM_Delete && cursor_pos < text_length)
2248 strcpy(text, gi->textarea.value);
2249 strcpy(&gi->textarea.value[cursor_pos], &text[cursor_pos + 1]);
2251 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2254 else if (gi->type & GD_TYPE_SELECTBOX) /* only valid for selectbox */
2256 int index = gi->selectbox.current_index;
2257 int num_values = gi->selectbox.num_values;
2259 if (key == KSYM_Up && index > 0)
2261 gi->selectbox.current_index--;
2263 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2265 else if (key == KSYM_Down && index < num_values - 1)
2267 gi->selectbox.current_index++;
2269 DrawGadget(gi, DG_PRESSED, gi->direct_draw);