1 // ============================================================================
2 // Artsoft Retro-Game Library
3 // ----------------------------------------------------------------------------
4 // (c) 1995-2014 by Artsoft Entertainment
7 // https://www.artsoft.org/
8 // ----------------------------------------------------------------------------
10 // ============================================================================
21 // values for DrawGadget()
22 #define DG_UNPRESSED 0
28 #define OPTION_TEXT_SELECTABLE(g, t) \
29 (t[0] != g->selectbox.char_unselectable && \
32 #define CURRENT_OPTION_SELECTABLE(g) \
33 OPTION_TEXT_SELECTABLE(g, g->selectbox.options[g->selectbox.current_index].text)
36 static struct GadgetInfo *gadget_list_first_entry = NULL;
37 static struct GadgetInfo *gadget_list_last_entry = NULL;
38 static struct GadgetInfo *last_info_gi = NULL;
39 static int next_free_gadget_id = 1;
40 static boolean gadget_id_wrapped = FALSE;
41 static int gadget_screen_border_right = -1;
42 static int gadget_screen_border_bottom = -1;
44 static void (*PlayGadgetSoundActivating)(void) = NULL;
45 static void (*PlayGadgetSoundSelecting)(void) = NULL;
48 void InitGadgetsSoundCallback(void (*activating_function)(void),
49 void (*selecting_function)(void))
51 PlayGadgetSoundActivating = activating_function;
52 PlayGadgetSoundSelecting = selecting_function;
55 void InitGadgetScreenBorders(int border_right, int border_bottom)
57 gadget_screen_border_right = border_right;
58 gadget_screen_border_bottom = border_bottom;
61 static int getGadgetScreenBorderRight(void)
63 if (gadget_screen_border_right < gfx.sx ||
64 gadget_screen_border_right > gfx.sx + gfx.sxsize)
65 return gfx.sx + gfx.sxsize;
67 return gadget_screen_border_right;
70 static int getGadgetScreenBorderBottom(void)
72 if (gadget_screen_border_bottom < gfx.sy ||
73 gadget_screen_border_bottom > gfx.sy + gfx.sysize)
74 return gfx.sy + gfx.sysize;
76 return gadget_screen_border_bottom;
79 static struct GadgetInfo *getGadgetInfoFromGadgetID(int id)
81 struct GadgetInfo *gi = gadget_list_first_entry;
83 while (gi && gi->id != id)
89 static int getNewGadgetID(void)
91 int id = next_free_gadget_id++;
93 if (next_free_gadget_id <= 0) // counter overrun
95 gadget_id_wrapped = TRUE; // now we must check each ID
96 next_free_gadget_id = 0;
99 if (gadget_id_wrapped)
101 next_free_gadget_id++;
102 while (getGadgetInfoFromGadgetID(next_free_gadget_id) != NULL)
103 next_free_gadget_id++;
106 if (next_free_gadget_id <= 0) // cannot get new gadget id
107 Fail("too much gadgets -- this should not happen");
112 static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my,
115 struct GadgetInfo *gi;
117 // first check for scrollbars in case of mouse scroll wheel button events
118 if (IS_WHEEL_BUTTON(button))
120 // real horizontal wheel or vertical wheel with modifier key pressed
121 boolean check_horizontal = (IS_WHEEL_BUTTON_HORIZONTAL(button) ||
122 GetKeyModState() & KMOD_Shift);
124 // check for the first active scrollbar directly under the mouse pointer
125 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
127 if (gi->mapped && gi->active &&
128 (gi->type & GD_TYPE_SCROLLBAR) &&
129 mx >= gi->x && mx < gi->x + gi->width &&
130 my >= gi->y && my < gi->y + gi->height)
134 // check for the first active scrollbar with matching mouse wheel area
135 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
137 if (gi->mapped && gi->active &&
138 ((gi->type & GD_TYPE_SCROLLBAR_HORIZONTAL && check_horizontal) ||
139 (gi->type & GD_TYPE_SCROLLBAR_VERTICAL && !check_horizontal)) &&
140 mx >= gi->wheelarea.x && mx < gi->wheelarea.x + gi->wheelarea.width &&
141 my >= gi->wheelarea.y && my < gi->wheelarea.y + gi->wheelarea.height)
145 // no active scrollbar found -- ignore this scroll wheel button event
149 // open selectboxes may overlap other active gadgets, so check them first
150 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
152 if (gi->mapped && gi->active &&
153 gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
154 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
155 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
159 // check all other gadgets
160 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
162 if (gi->mapped && gi->active &&
163 mx >= gi->x && mx < gi->x + gi->width &&
164 my >= gi->y && my < gi->y + gi->height)
171 static void setTextAreaCursorExt(struct GadgetInfo *gi, boolean set_cursor_pos)
173 char *text = gi->textarea.value;
174 int area_xsize = gi->textarea.xsize;
175 int area_ysize = gi->textarea.ysize;
176 int cursor_position = gi->textarea.cursor_position;
177 int cursor_x = gi->textarea.cursor_x;
178 int cursor_y = gi->textarea.cursor_y;
185 if (set_cursor_pos) // x/y => position
187 if (y == cursor_y && (x == cursor_x || (x < cursor_x && *text == '\n')))
190 else // position => x/y
192 if (pos == cursor_position)
196 if (x + 1 >= area_xsize || *text == '\n')
198 if (y + 1 >= area_ysize)
211 gi->textarea.cursor_x = x;
212 gi->textarea.cursor_y = y;
213 gi->textarea.cursor_x_preferred = x;
214 gi->textarea.cursor_position = pos;
217 static void setTextAreaCursorXY(struct GadgetInfo *gi, int x, int y)
219 gi->textarea.cursor_x = x;
220 gi->textarea.cursor_y = y;
222 setTextAreaCursorExt(gi, TRUE);
225 static void setTextAreaCursorPosition(struct GadgetInfo *gi, int pos)
227 gi->textarea.cursor_position = pos;
229 setTextAreaCursorExt(gi, FALSE);
232 static void default_callback_info(void *ptr)
237 static void default_callback_action(void *ptr)
242 static void DoGadgetCallbackAction(struct GadgetInfo *gi, boolean changed)
244 if (changed || gi->callback_action_always)
245 gi->callback_action(gi);
248 static void DrawGadget(struct GadgetInfo *gi, boolean pressed, boolean direct)
250 struct GadgetDesign *gd;
251 int state = (pressed ? GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
252 boolean redraw_selectbox = FALSE;
254 if (gi == NULL || gi->deactivated)
257 if (gi->overlay_touch_button) // will be drawn later (as texture)
260 gd = (!gi->active ? &gi->alt_design[state] :
261 gi->checked ? &gi->alt_design[state] : &gi->design[state]);
265 case GD_TYPE_NORMAL_BUTTON:
266 case GD_TYPE_CHECK_BUTTON:
267 case GD_TYPE_CHECK_BUTTON_2:
268 case GD_TYPE_RADIO_BUTTON:
270 BlitBitmapOnBackground(gd->bitmap, drawto,
271 gd->x, gd->y, gi->width, gi->height,
274 if (gi->deco.design.bitmap)
276 // make sure that decoration does not overlap gadget border
277 int deco_x = gi->deco.x + (pressed ? gi->deco.xshift : 0);
278 int deco_y = gi->deco.y + (pressed ? gi->deco.yshift : 0);
279 int deco_width = MIN(gi->deco.width, gi->width - deco_x);
280 int deco_height = MIN(gi->deco.height, gi->height - deco_y);
283 BlitBitmapMasked(gi->deco.design.bitmap, drawto,
284 gi->deco.design.x, gi->deco.design.y,
285 deco_width, deco_height,
286 gi->x + deco_x, gi->y + deco_y);
288 BlitBitmap(gi->deco.design.bitmap, drawto,
289 gi->deco.design.x, gi->deco.design.y,
290 deco_width, deco_height,
291 gi->x + deco_x, gi->y + deco_y);
296 case GD_TYPE_TEXT_BUTTON:
299 int font_nr = (gi->active ? gi->font_active : gi->font);
300 int font_width = getFontWidth(font_nr);
301 int border_x = gi->border.xsize;
302 int border_y = gi->border.ysize;
303 int text_size = strlen(gi->textbutton.value);
304 int text_start = (gi->width - text_size * font_width) / 2;
306 // left part of gadget
307 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
308 border_x, gi->height, gi->x, gi->y);
310 // middle part of gadget
311 for (i=0; i < gi->textbutton.size; i++)
312 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
313 font_width, gi->height,
314 gi->x + border_x + i * font_width, gi->y);
316 // right part of gadget
317 BlitBitmapOnBackground(gd->bitmap, drawto,
318 gd->x + gi->border.width - border_x, gd->y,
319 border_x, gi->height,
320 gi->x + gi->width - border_x, gi->y);
324 gi->x + text_start + (pressed ? gi->deco.xshift : 0),
325 gi->y + border_y + (pressed ? gi->deco.yshift : 0),
326 gi->textbutton.value, font_nr, BLIT_MASKED);
330 case GD_TYPE_TEXT_INPUT_ALPHANUMERIC:
331 case GD_TYPE_TEXT_INPUT_NUMERIC:
335 char cursor_string[2];
336 char text[MAX_GADGET_TEXTSIZE + 1];
337 int font_nr = (pressed ? gi->font_active : gi->font);
338 int font_width = getFontWidth(font_nr);
339 int border_x = gi->border.xsize;
340 int border_y = gi->border.ysize;
342 // left part of gadget
343 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
344 border_x, gi->height, gi->x, gi->y);
346 // middle part of gadget
347 for (i=0; i < gi->textinput.size + 1; i++)
348 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
349 font_width, gi->height,
350 gi->x + border_x + i * font_width, gi->y);
352 // right part of gadget
353 BlitBitmapOnBackground(gd->bitmap, drawto,
354 gd->x + gi->border.width - border_x, gd->y,
355 border_x, gi->height,
356 gi->x + gi->width - border_x, gi->y);
359 strcpy(text, gi->textinput.value);
364 gi->x + border_x, gi->y + border_y, text,
365 font_nr, BLIT_MASKED);
367 cursor_letter = gi->textinput.value[gi->textinput.cursor_position];
368 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
369 cursor_string[1] = '\0';
371 // draw cursor, if active
375 gi->textinput.cursor_position * font_width,
376 gi->y + border_y, cursor_string,
377 font_nr, BLIT_INVERSE);
381 case GD_TYPE_TEXT_AREA:
385 char cursor_string[2];
386 int font_nr = (pressed ? gi->font_active : gi->font);
387 int font_width = getFontWidth(font_nr);
388 int font_height = getFontHeight(font_nr);
389 int border_x = gi->border.xsize;
390 int border_y = gi->border.ysize;
391 int gd_height = 2 * border_y + font_height;
394 int width = gi->width;
395 int height = gi->height;
396 int xsize = gi->textarea.xsize;
397 int ysize = gi->textarea.ysize;
399 // top left part of gadget border
400 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
401 border_x, border_y, x, y);
403 // top middle part of gadget border
404 for (i=0; i < xsize; i++)
405 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
406 font_width, border_y,
407 x + border_x + i * font_width, y);
409 // top right part of gadget border
410 BlitBitmapOnBackground(gd->bitmap, drawto,
411 gd->x + gi->border.width - border_x, gd->y,
413 x + width - border_x, y);
415 // left and right part of gadget border for each row
416 for (i=0; i < ysize; i++)
418 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
419 border_x, font_height,
420 x, y + border_y + i * font_height);
421 BlitBitmapOnBackground(gd->bitmap, drawto,
422 gd->x + gi->border.width - border_x,
424 border_x, font_height,
425 x + width - border_x,
426 y + border_y + i * font_height);
429 // bottom left part of gadget border
430 BlitBitmapOnBackground(gd->bitmap, drawto,
431 gd->x, gd->y + gd_height - border_y,
433 x, y + height - border_y);
435 // bottom middle part of gadget border
436 for (i=0; i < xsize; i++)
437 BlitBitmapOnBackground(gd->bitmap, drawto,
439 gd->y + gd_height - border_y,
440 font_width, border_y,
441 x + border_x + i * font_width,
442 y + height - border_y);
444 // bottom right part of gadget border
445 BlitBitmapOnBackground(gd->bitmap, drawto,
446 gd->x + gi->border.width - border_x,
447 gd->y + gd_height - border_y,
449 x + width - border_x,
450 y + height - border_y);
452 ClearRectangleOnBackground(drawto,
455 width - 2 * border_x,
456 height - 2 * border_y);
459 DrawTextArea(x + border_x, y + border_y, gi->textarea.value,
460 font_nr, xsize, -1, ysize, 0,
461 BLIT_ON_BACKGROUND, FALSE, FALSE, FALSE);
463 cursor_letter = gi->textarea.value[gi->textarea.cursor_position];
464 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
465 cursor_string[1] = '\0';
467 // draw cursor, if active
470 x + border_x + gi->textarea.cursor_x * font_width,
471 y + border_y + gi->textarea.cursor_y * font_height,
473 font_nr, BLIT_INVERSE);
477 case GD_TYPE_SELECTBOX:
480 char text[MAX_GADGET_TEXTSIZE + 1];
481 int font_nr_default = (pressed ? gi->font_active : gi->font);
482 int font_nr = font_nr_default;
483 int font_width = getFontWidth(font_nr);
484 int font_height = getFontHeight(font_nr);
485 int border_x = gi->border.xsize;
486 int border_y = gi->border.ysize;
487 int button = gi->border.xsize_selectbutton;
488 int width_inner = gi->border.width - button - 2 * border_x;
489 int box_width = gi->selectbox.width;
490 int box_height = gi->selectbox.height;
492 // left part of gadget
493 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
494 border_x, gi->height, gi->x, gi->y);
496 // middle part of gadget
497 for (i=0; i < gi->selectbox.size; i++)
498 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
499 font_width, gi->height,
500 gi->x + border_x + i * font_width, gi->y);
502 // button part of gadget
503 BlitBitmapOnBackground(gd->bitmap, drawto,
504 gd->x + border_x + width_inner, gd->y,
506 gi->x + gi->width - border_x - button, gi->y);
508 // right part of gadget
509 BlitBitmapOnBackground(gd->bitmap, drawto,
510 gd->x + gi->border.width - border_x, gd->y,
511 border_x, gi->height,
512 gi->x + gi->width - border_x, gi->y);
515 strncpy(text, gi->selectbox.options[gi->selectbox.index].text,
517 text[gi->selectbox.size] = '\0';
520 font_nr = (OPTION_TEXT_SELECTABLE(gi, text) ? font_nr_default :
521 gi->font_unselectable);
524 DrawTextExt(drawto, gi->x + border_x, gi->y + border_y, text,
525 font_nr, BLIT_MASKED);
529 if (!gi->selectbox.open)
531 gi->selectbox.open = TRUE;
532 gi->selectbox.stay_open = FALSE;
533 gi->selectbox.current_index = gi->selectbox.index;
535 // save background under selectbox
536 BlitBitmap(drawto, gfx.field_save_buffer,
537 gi->selectbox.x, gi->selectbox.y,
538 gi->selectbox.width, gi->selectbox.height,
539 gi->selectbox.x, gi->selectbox.y);
542 // draw open selectbox
544 // top left part of gadget border
545 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
547 gi->selectbox.x, gi->selectbox.y);
549 // top middle part of gadget border
550 for (i=0; i < gi->selectbox.size; i++)
551 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
552 font_width, border_y,
553 gi->selectbox.x + border_x + i * font_width,
556 // top button part of gadget border
557 BlitBitmapOnBackground(gd->bitmap, drawto,
558 gd->x + border_x + width_inner, gd->y,
560 gi->selectbox.x + box_width -border_x -button,
563 // top right part of gadget border
564 BlitBitmapOnBackground(gd->bitmap, drawto,
565 gd->x + gi->border.width - border_x, gd->y,
567 gi->selectbox.x + box_width - border_x,
570 // left and right part of gadget border for each row
571 for (i=0; i < gi->selectbox.num_values; i++)
573 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
574 border_x, font_height,
576 gi->selectbox.y + border_y + i*font_height);
577 BlitBitmapOnBackground(gd->bitmap, drawto,
578 gd->x + gi->border.width - border_x,
580 border_x, font_height,
581 gi->selectbox.x + box_width - border_x,
582 gi->selectbox.y + border_y + i*font_height);
585 // bottom left part of gadget border
586 BlitBitmapOnBackground(gd->bitmap, drawto,
587 gd->x, gd->y + gi->height - border_y,
590 gi->selectbox.y + box_height - border_y);
592 // bottom middle part of gadget border
593 for (i=0; i < gi->selectbox.size; i++)
594 BlitBitmapOnBackground(gd->bitmap, drawto,
596 gd->y + gi->height - border_y,
597 font_width, border_y,
598 gi->selectbox.x + border_x + i * font_width,
599 gi->selectbox.y + box_height - border_y);
601 // bottom button part of gadget border
602 BlitBitmapOnBackground(gd->bitmap, drawto,
603 gd->x + border_x + width_inner,
604 gd->y + gi->height - border_y,
606 gi->selectbox.x + box_width -border_x -button,
607 gi->selectbox.y + box_height - border_y);
609 // bottom right part of gadget border
610 BlitBitmapOnBackground(gd->bitmap, drawto,
611 gd->x + gi->border.width - border_x,
612 gd->y + gi->height - border_y,
614 gi->selectbox.x + box_width - border_x,
615 gi->selectbox.y + box_height - border_y);
617 ClearRectangleOnBackground(drawto,
618 gi->selectbox.x + border_x,
619 gi->selectbox.y + border_y,
620 gi->selectbox.width - 2 * border_x,
621 gi->selectbox.height - 2 * border_y);
623 // selectbox text values
624 for (i=0; i < gi->selectbox.num_values; i++)
626 int mask_mode = BLIT_MASKED;
628 strncpy(text, gi->selectbox.options[i].text, gi->selectbox.size);
629 text[gi->selectbox.size] = '\0';
631 font_nr = (OPTION_TEXT_SELECTABLE(gi, text) ? font_nr_default :
632 gi->font_unselectable);
634 if (i == gi->selectbox.current_index &&
635 OPTION_TEXT_SELECTABLE(gi, text))
637 FillRectangle(drawto,
638 gi->selectbox.x + border_x,
639 gi->selectbox.y + border_y + i * font_height,
640 gi->selectbox.width - 2 * border_x, font_height,
641 gi->selectbox.inverse_color);
643 // prevent use of cursor graphic by drawing at least two chars
645 text[gi->selectbox.size] = '\0';
647 mask_mode = BLIT_INVERSE;
651 gi->selectbox.x + border_x,
652 gi->selectbox.y + border_y + i * font_height, text,
656 redraw_selectbox = TRUE;
658 else if (gi->selectbox.open)
660 gi->selectbox.open = FALSE;
662 // restore background under selectbox
663 BlitBitmap(gfx.field_save_buffer, drawto,
664 gi->selectbox.x, gi->selectbox.y,
665 gi->selectbox.width, gi->selectbox.height,
666 gi->selectbox.x, gi->selectbox.y);
668 // redraw closed selectbox
669 DrawGadget(gi, FALSE, FALSE);
671 redraw_selectbox = TRUE;
676 case GD_TYPE_SCROLLBAR_VERTICAL:
680 int ypos = gi->y + gi->scrollbar.position;
681 int design_full = gi->width;
682 int design_body = design_full - 2 * gi->border.ysize;
683 int size_full = gi->scrollbar.size;
684 int size_body = size_full - 2 * gi->border.ysize;
685 int num_steps = size_body / design_body;
686 int step_size_remain = size_body - num_steps * design_body;
688 // clear scrollbar area
689 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
690 gi->width, gi->height);
692 // upper part of gadget
693 BlitBitmapOnBackground(gd->bitmap, drawto,
695 gi->width, gi->border.ysize,
698 // middle part of gadget
699 for (i=0; i < num_steps; i++)
700 BlitBitmapOnBackground(gd->bitmap, drawto,
701 gd->x, gd->y + gi->border.ysize,
702 gi->width, design_body,
704 ypos + gi->border.ysize + i * design_body);
706 // remaining middle part of gadget
707 if (step_size_remain > 0)
708 BlitBitmapOnBackground(gd->bitmap, drawto,
709 gd->x, gd->y + gi->border.ysize,
710 gi->width, step_size_remain,
712 ypos + gi->border.ysize
713 + num_steps * design_body);
715 // lower part of gadget
716 BlitBitmapOnBackground(gd->bitmap, drawto,
717 gd->x, gd->y + design_full - gi->border.ysize,
718 gi->width, gi->border.ysize,
719 xpos, ypos + size_full - gi->border.ysize);
723 case GD_TYPE_SCROLLBAR_HORIZONTAL:
726 int xpos = gi->x + gi->scrollbar.position;
728 int design_full = gi->height;
729 int design_body = design_full - 2 * gi->border.xsize;
730 int size_full = gi->scrollbar.size;
731 int size_body = size_full - 2 * gi->border.xsize;
732 int num_steps = size_body / design_body;
733 int step_size_remain = size_body - num_steps * design_body;
735 // clear scrollbar area
736 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
737 gi->width, gi->height);
739 // left part of gadget
740 BlitBitmapOnBackground(gd->bitmap, drawto,
742 gi->border.xsize, gi->height,
745 // middle part of gadget
746 for (i=0; i < num_steps; i++)
747 BlitBitmapOnBackground(gd->bitmap, drawto,
748 gd->x + gi->border.xsize, gd->y,
749 design_body, gi->height,
750 xpos + gi->border.xsize + i * design_body,
753 // remaining middle part of gadget
754 if (step_size_remain > 0)
755 BlitBitmapOnBackground(gd->bitmap, drawto,
756 gd->x + gi->border.xsize, gd->y,
757 step_size_remain, gi->height,
758 xpos + gi->border.xsize
759 + num_steps * design_body,
762 // right part of gadget
763 BlitBitmapOnBackground(gd->bitmap, drawto,
764 gd->x + design_full - gi->border.xsize, gd->y,
765 gi->border.xsize, gi->height,
766 xpos + size_full - gi->border.xsize, ypos);
774 // do not use direct gadget drawing anymore; this worked as a speed-up once,
775 // but would slow things down a lot now the screen is always fully redrawn
780 BlitBitmap(drawto, window,
781 gi->x, gi->y, gi->width, gi->height, gi->x, gi->y);
783 if (gi->type == GD_TYPE_SELECTBOX && redraw_selectbox)
784 BlitBitmap(drawto, window,
785 gi->selectbox.x, gi->selectbox.y,
786 gi->selectbox.width, gi->selectbox.height,
787 gi->selectbox.x, gi->selectbox.y);
794 redraw_mask |= (IN_GFX_FIELD_FULL(x, y) ? REDRAW_FIELD :
795 IN_GFX_DOOR_1(x, y) ? REDRAW_DOOR_1 :
796 IN_GFX_DOOR_2(x, y) ? REDRAW_DOOR_2 :
797 IN_GFX_DOOR_3(x, y) ? REDRAW_DOOR_3 : REDRAW_ALL);
801 static void SetGadgetPosition_OverlayTouchButton(struct GadgetInfo *gi)
807 gi->x += video.screen_width;
809 gi->y += video.screen_height;
811 gi->x -= video.screen_xoffset;
812 gi->y -= video.screen_yoffset;
815 void SetGadgetsPosition_OverlayTouchButtons(void)
817 struct GadgetInfo *gi;
819 if (gadget_list_first_entry == NULL)
822 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
823 if (gi->overlay_touch_button)
824 SetGadgetPosition_OverlayTouchButton(gi);
827 static void DrawGadget_OverlayTouchButton(struct GadgetInfo *gi)
829 struct GadgetDesign *gd;
830 int state = (gi->state ? GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
832 if (gi == NULL || gi->deactivated)
835 gd = (!gi->active ? &gi->alt_design[state] :
836 gi->checked ? &gi->alt_design[state] : &gi->design[state]);
838 int x = gi->x + video.screen_xoffset;
839 int y = gi->y + video.screen_yoffset;
840 int alpha = gi->overlay_touch_button_alpha;
841 int alpha_max = SDL_ALPHA_OPAQUE;
842 int alpha_step = ALPHA_FADING_STEPSIZE(alpha_max);
844 // only show mapped overlay touch buttons if touch screen is really used
845 if (gi->mapped && runtime.uses_touch_device)
847 if (alpha < alpha_max)
848 alpha = MIN(alpha + alpha_step, alpha_max);
852 alpha = MAX(0, alpha - alpha_step);
855 gi->overlay_touch_button_alpha = alpha;
862 case GD_TYPE_NORMAL_BUTTON:
863 case GD_TYPE_CHECK_BUTTON:
864 case GD_TYPE_CHECK_BUTTON_2:
865 case GD_TYPE_RADIO_BUTTON:
866 SDL_SetTextureAlphaMod(gd->bitmap->texture_masked, alpha);
867 SDL_SetTextureBlendMode(gd->bitmap->texture_masked, SDL_BLENDMODE_BLEND);
869 BlitToScreenMasked(gd->bitmap, gd->x, gd->y, gi->width, gi->height, x, y);
877 void DrawGadgets_OverlayTouchButtons(void)
879 struct GadgetInfo *gi;
881 if (gadget_list_first_entry == NULL)
884 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
885 if (gi->overlay_touch_button)
886 DrawGadget_OverlayTouchButton(gi);
889 boolean CheckPosition_OverlayTouchButtons(int mx, int my, int button)
891 struct GadgetInfo *gi = getGadgetInfoFromMousePosition(mx, my, button);
893 return (gi != NULL && gi->overlay_touch_button);
896 static int get_minimal_size_for_numeric_input(int minmax_value)
898 int min_size = 1; // value needs at least one digit
901 // add number of digits needed for absolute value
902 for (i = 10; i <= ABS(minmax_value); i *= 10)
905 // if min/max value is negative, add one digit for minus sign
906 if (minmax_value < 0)
912 static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
919 while (tag != GDI_END)
924 gi->image_id = va_arg(ap, int);
928 gi->custom_id = va_arg(ap, int);
931 case GDI_CUSTOM_TYPE_ID:
932 gi->custom_type_id = va_arg(ap, int);
937 int max_textsize = MAX_INFO_TEXTSIZE;
938 char *text = va_arg(ap, char *);
941 strncpy(gi->info_text, text, max_textsize);
945 gi->info_text[max_textsize] = '\0';
950 gi->x = gi->orig_x = va_arg(ap, int);
954 gi->y = gi->orig_y = va_arg(ap, int);
958 gi->width = va_arg(ap, int);
962 gi->height = va_arg(ap, int);
966 gi->type = va_arg(ap, unsigned int);
970 gi->state = va_arg(ap, unsigned int);
974 gi->active = (boolean)va_arg(ap, int);
977 case GDI_DIRECT_DRAW:
978 gi->direct_draw = (boolean)va_arg(ap, int);
981 case GDI_OVERLAY_TOUCH_BUTTON:
982 gi->overlay_touch_button = (boolean)va_arg(ap, int);
983 if (gi->overlay_touch_button)
984 SetGadgetPosition_OverlayTouchButton(gi);
987 case GDI_CALLBACK_ACTION_ALWAYS:
988 gi->callback_action_always = (boolean)va_arg(ap, int);
992 gi->checked = (boolean)va_arg(ap, int);
996 gi->radio_nr = va_arg(ap, unsigned int);
999 case GDI_NUMBER_VALUE:
1000 gi->textinput.number_value = va_arg(ap, int);
1001 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
1002 strcpy(gi->textinput.last_value, gi->textinput.value);
1003 gi->textinput.cursor_position = strlen(gi->textinput.value);
1006 case GDI_NUMBER_MIN:
1007 gi->textinput.number_min = va_arg(ap, int);
1008 if (gi->textinput.number_value < gi->textinput.number_min)
1010 gi->textinput.number_value = gi->textinput.number_min;
1011 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
1012 strcpy(gi->textinput.last_value, gi->textinput.value);
1016 case GDI_NUMBER_MAX:
1017 gi->textinput.number_max = va_arg(ap, int);
1018 if (gi->textinput.number_value > gi->textinput.number_max)
1020 gi->textinput.number_value = gi->textinput.number_max;
1021 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
1022 strcpy(gi->textinput.last_value, gi->textinput.value);
1026 case GDI_TEXT_VALUE:
1028 int max_textsize = MAX_GADGET_TEXTSIZE;
1030 if (gi->textinput.size)
1031 max_textsize = MIN(gi->textinput.size, MAX_GADGET_TEXTSIZE);
1033 strncpy(gi->textinput.value, va_arg(ap, char *), max_textsize);
1034 strcpy(gi->textinput.last_value, gi->textinput.value);
1036 gi->textinput.value[max_textsize] = '\0';
1037 gi->textinput.cursor_position = strlen(gi->textinput.value);
1039 // same tag also used for other gadget definitions
1040 strcpy(gi->textbutton.value, gi->textinput.value);
1041 strcpy(gi->textarea.value, gi->textinput.value);
1042 strcpy(gi->textarea.last_value, gi->textinput.value);
1048 int tag_value = va_arg(ap, int);
1049 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE);
1051 gi->textinput.size = max_textsize;
1052 gi->textinput.value[max_textsize] = '\0';
1053 strcpy(gi->textinput.last_value, gi->textinput.value);
1055 // same tag also used for other gadget definitions
1057 gi->textarea.size = max_textsize;
1058 gi->textarea.value[max_textsize] = '\0';
1059 strcpy(gi->textarea.last_value, gi->textinput.value);
1061 gi->textbutton.size = max_textsize;
1062 gi->textbutton.value[max_textsize] = '\0';
1064 gi->selectbox.size = gi->textinput.size;
1069 gi->font = va_arg(ap, int);
1070 if (gi->font_active == 0)
1071 gi->font_active = gi->font;
1072 if (gi->font_unselectable == 0)
1073 gi->font_unselectable = gi->font;
1076 case GDI_TEXT_FONT_ACTIVE:
1077 gi->font_active = va_arg(ap, int);
1080 case GDI_TEXT_FONT_UNSELECTABLE:
1081 gi->font_unselectable = va_arg(ap, int);
1084 case GDI_SELECTBOX_OPTIONS:
1085 gi->selectbox.options = va_arg(ap, struct ValueTextInfo *);
1088 case GDI_SELECTBOX_INDEX:
1089 gi->selectbox.index = va_arg(ap, int);
1092 case GDI_SELECTBOX_CHAR_UNSELECTABLE:
1093 gi->selectbox.char_unselectable = (char)va_arg(ap, int);
1096 case GDI_DESIGN_UNPRESSED:
1097 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
1098 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
1099 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
1102 case GDI_DESIGN_PRESSED:
1103 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
1104 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
1105 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
1108 case GDI_ALT_DESIGN_UNPRESSED:
1109 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
1110 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
1111 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
1114 case GDI_ALT_DESIGN_PRESSED:
1115 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
1116 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
1117 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
1120 case GDI_BORDER_SIZE:
1121 gi->border.xsize = va_arg(ap, int);
1122 gi->border.ysize = va_arg(ap, int);
1125 case GDI_BORDER_SIZE_SELECTBUTTON:
1126 gi->border.xsize_selectbutton = va_arg(ap, int);
1129 case GDI_DESIGN_WIDTH:
1130 gi->border.width = va_arg(ap, int);
1133 case GDI_DECORATION_DESIGN:
1134 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
1135 gi->deco.design.x = va_arg(ap, int);
1136 gi->deco.design.y = va_arg(ap, int);
1139 case GDI_DECORATION_POSITION:
1140 gi->deco.x = va_arg(ap, int);
1141 gi->deco.y = va_arg(ap, int);
1144 case GDI_DECORATION_SIZE:
1145 gi->deco.width = va_arg(ap, int);
1146 gi->deco.height = va_arg(ap, int);
1149 case GDI_DECORATION_SHIFTING:
1150 gi->deco.xshift = va_arg(ap, int);
1151 gi->deco.yshift = va_arg(ap, int);
1154 case GDI_DECORATION_MASKED:
1155 gi->deco.masked = (boolean)va_arg(ap, int);
1158 case GDI_EVENT_MASK:
1159 gi->event_mask = va_arg(ap, unsigned int);
1163 gi->drawing.area_xsize = va_arg(ap, int);
1164 gi->drawing.area_ysize = va_arg(ap, int);
1166 // determine dependent values for drawing area gadget, if needed
1167 if (gi->drawing.item_xsize != 0 && gi->drawing.item_ysize != 0)
1169 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
1170 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
1172 else if (gi->width != 0 && gi->height != 0)
1174 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
1175 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
1178 // same tag also used for other gadget definitions
1179 gi->textarea.xsize = gi->drawing.area_xsize;
1180 gi->textarea.ysize = gi->drawing.area_ysize;
1182 if (gi->type & GD_TYPE_TEXT_AREA) // force recalculation
1191 gi->drawing.item_xsize = va_arg(ap, int);
1192 gi->drawing.item_ysize = va_arg(ap, int);
1194 // determine dependent values for drawing area gadget, if needed
1195 if (gi->drawing.area_xsize != 0 && gi->drawing.area_ysize != 0)
1197 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
1198 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
1200 else if (gi->width != 0 && gi->height != 0)
1202 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
1203 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
1207 case GDI_SCROLLBAR_ITEMS_MAX:
1208 gi->scrollbar.items_max = va_arg(ap, int);
1211 case GDI_SCROLLBAR_ITEMS_VISIBLE:
1212 gi->scrollbar.items_visible = va_arg(ap, int);
1215 case GDI_SCROLLBAR_ITEM_POSITION:
1216 gi->scrollbar.item_position = va_arg(ap, int);
1219 case GDI_WHEEL_AREA_X:
1220 gi->wheelarea.x = va_arg(ap, int);
1223 case GDI_WHEEL_AREA_Y:
1224 gi->wheelarea.y = va_arg(ap, int);
1227 case GDI_WHEEL_AREA_WIDTH:
1228 gi->wheelarea.width = va_arg(ap, int);
1231 case GDI_WHEEL_AREA_HEIGHT:
1232 gi->wheelarea.height = va_arg(ap, int);
1235 case GDI_CALLBACK_INFO:
1236 gi->callback_info = va_arg(ap, gadget_function);
1239 case GDI_CALLBACK_ACTION:
1240 gi->callback_action = va_arg(ap, gadget_function);
1244 Fail("HandleGadgetTags(): unknown tag %d", tag);
1247 tag = va_arg(ap, int); // read next tag
1250 gi->deactivated = FALSE;
1252 // check if gadget has undefined bitmaps
1253 if (gi->type != GD_TYPE_DRAWING_AREA &&
1254 (gi->design[GD_BUTTON_UNPRESSED].bitmap == NULL ||
1255 gi->design[GD_BUTTON_PRESSED].bitmap == NULL))
1256 gi->deactivated = TRUE;
1258 // check if gadget is placed off-screen (and is no overlay touch button)
1259 if ((gi->x < 0 || gi->y < 0) && !gi->overlay_touch_button)
1260 gi->deactivated = TRUE;
1262 // adjust gadget values in relation to other gadget values
1264 if (gi->type & GD_TYPE_TEXT_INPUT)
1266 int font_nr = gi->font_active;
1267 int font_width = getFontWidth(font_nr);
1268 int font_height = getFontHeight(font_nr);
1269 int border_xsize = gi->border.xsize;
1270 int border_ysize = gi->border.ysize;
1272 if (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC)
1274 int number_min = gi->textinput.number_min;
1275 int number_max = gi->textinput.number_max;
1276 int min_size_min = get_minimal_size_for_numeric_input(number_min);
1277 int min_size_max = get_minimal_size_for_numeric_input(number_max);
1278 int min_size = MAX(min_size_min, min_size_max);
1280 // expand gadget text input size, if maximal value is too large
1281 if (gi->textinput.size < min_size)
1282 gi->textinput.size = min_size;
1285 gi->width = 2 * border_xsize + (gi->textinput.size + 1) * font_width;
1286 gi->height = 2 * border_ysize + font_height;
1289 if (gi->type & GD_TYPE_SELECTBOX)
1291 int font_nr = gi->font_active;
1292 int font_width = getFontWidth(font_nr);
1293 int font_height = getFontHeight(font_nr);
1294 int border_xsize = gi->border.xsize;
1295 int border_ysize = gi->border.ysize;
1296 int button_size = gi->border.xsize_selectbutton;
1297 int bottom_screen_border = getGadgetScreenBorderBottom();
1301 gi->width = 2 * border_xsize + gi->textinput.size*font_width +button_size;
1302 gi->height = 2 * border_ysize + font_height;
1304 if (gi->selectbox.options == NULL)
1305 Fail("selectbox gadget incomplete (missing options array)");
1307 gi->selectbox.num_values = 0;
1308 while (gi->selectbox.options[gi->selectbox.num_values].text != NULL)
1309 gi->selectbox.num_values++;
1311 // calculate values for open selectbox
1312 gi->selectbox.width = gi->width;
1313 gi->selectbox.height =
1314 2 * border_ysize + gi->selectbox.num_values * font_height;
1316 gi->selectbox.x = gi->x;
1317 gi->selectbox.y = gi->y + gi->height;
1318 if (gi->selectbox.y + gi->selectbox.height > bottom_screen_border)
1319 gi->selectbox.y = gi->y - gi->selectbox.height;
1320 if (gi->selectbox.y < 0)
1321 gi->selectbox.y = bottom_screen_border - gi->selectbox.height;
1323 getFontCharSource(font_nr, FONT_ASCII_CURSOR, &src_bitmap, &src_x, &src_y);
1324 src_x += font_width / 2;
1325 src_y += font_height / 2;
1327 // there may be esoteric cases with missing or too small font bitmap
1328 if (src_bitmap != NULL &&
1329 src_x < src_bitmap->width && src_y < src_bitmap->height)
1330 gi->selectbox.inverse_color = GetPixel(src_bitmap, src_x, src_y);
1332 // always start with closed selectbox
1333 gi->selectbox.open = FALSE;
1336 if (gi->type & GD_TYPE_TEXT_INPUT_NUMERIC)
1338 struct GadgetTextInput *text = &gi->textinput;
1339 int value = text->number_value;
1341 text->number_value = (value < text->number_min ? text->number_min :
1342 value > text->number_max ? text->number_max :
1345 sprintf(text->value, "%d", text->number_value);
1348 if (gi->type & GD_TYPE_TEXT_BUTTON)
1350 int font_nr = gi->font_active;
1351 int font_width = getFontWidth(font_nr);
1352 int font_height = getFontHeight(font_nr);
1353 int border_xsize = gi->border.xsize;
1354 int border_ysize = gi->border.ysize;
1356 gi->width = 2 * border_xsize + gi->textbutton.size * font_width;
1357 gi->height = 2 * border_ysize + font_height;
1360 if (gi->type & GD_TYPE_SCROLLBAR)
1362 struct GadgetScrollbar *gs = &gi->scrollbar;
1363 int scrollbar_size_cmp;
1365 if (gi->width == 0 || gi->height == 0 ||
1366 gs->items_max == 0 || gs->items_visible == 0)
1367 Fail("scrollbar gadget incomplete (missing tags)");
1369 // calculate internal scrollbar values
1370 gs->size_min = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1371 gi->width : gi->height);
1372 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1373 gi->height : gi->width);
1375 scrollbar_size_cmp = gs->size_max * gs->items_visible / gs->items_max;
1376 gs->size = MAX(scrollbar_size_cmp, gs->size_min);
1377 gs->size_max_cmp = (gs->size_max - (gs->size - scrollbar_size_cmp));
1379 gs->position = gs->size_max_cmp * gs->item_position / gs->items_max;
1380 gs->position_max = gs->size_max - gs->size;
1381 gs->correction = gs->size_max / gs->items_max / 2;
1383 // finetuning for maximal right/bottom position
1384 if (gs->item_position == gs->items_max - gs->items_visible)
1385 gs->position = gs->position_max;
1388 if (gi->type & GD_TYPE_TEXT_AREA)
1390 int font_nr = gi->font_active;
1391 int font_width = getFontWidth(font_nr);
1392 int font_height = getFontHeight(font_nr);
1393 int border_xsize = gi->border.xsize;
1394 int border_ysize = gi->border.ysize;
1396 if (gi->width == 0 || gi->height == 0)
1398 gi->width = 2 * border_xsize + gi->textarea.xsize * font_width;
1399 gi->height = 2 * border_ysize + gi->textarea.ysize * font_height;
1403 gi->textarea.xsize = (gi->width - 2 * border_xsize) / font_width;
1404 gi->textarea.ysize = (gi->height - 2 * border_ysize) / font_height;
1409 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
1413 va_start(ap, first_tag);
1414 HandleGadgetTags(gi, first_tag, ap);
1420 void RedrawGadget(struct GadgetInfo *gi)
1422 if (gi == NULL || gi->deactivated)
1426 DrawGadget(gi, gi->state, gi->direct_draw);
1429 struct GadgetInfo *CreateGadget(int first_tag, ...)
1431 struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
1434 // always start with reliable default values
1435 new_gadget->id = getNewGadgetID();
1436 new_gadget->image_id = -1;
1437 new_gadget->callback_info = default_callback_info;
1438 new_gadget->callback_action = default_callback_action;
1439 new_gadget->active = TRUE;
1440 new_gadget->direct_draw = TRUE;
1441 new_gadget->overlay_touch_button = FALSE;
1442 new_gadget->overlay_touch_button_alpha = 0;
1444 new_gadget->next = NULL;
1446 va_start(ap, first_tag);
1447 HandleGadgetTags(new_gadget, first_tag, ap);
1450 // insert new gadget into global gadget list
1451 if (gadget_list_last_entry)
1453 gadget_list_last_entry->next = new_gadget;
1454 gadget_list_last_entry = gadget_list_last_entry->next;
1457 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
1462 void FreeGadget(struct GadgetInfo *gi)
1464 struct GadgetInfo *gi_previous = gadget_list_first_entry;
1469 // prevent "last_info_gi" from pointing to memory that will be freed
1470 if (last_info_gi == gi)
1471 last_info_gi = NULL;
1473 while (gi_previous != NULL && gi_previous->next != gi)
1474 gi_previous = gi_previous->next;
1476 if (gi == gadget_list_first_entry)
1477 gadget_list_first_entry = gi->next;
1479 if (gi == gadget_list_last_entry)
1480 gadget_list_last_entry = gi_previous;
1482 if (gi_previous != NULL)
1483 gi_previous->next = gi->next;
1488 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
1490 if (gi->type != GD_TYPE_TEXT_INPUT_NUMERIC)
1493 gi->textinput.number_value = atoi(gi->textinput.value);
1495 if (gi->textinput.number_value < gi->textinput.number_min)
1496 gi->textinput.number_value = gi->textinput.number_min;
1497 if (gi->textinput.number_value > gi->textinput.number_max)
1498 gi->textinput.number_value = gi->textinput.number_max;
1500 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
1502 if (gi->textinput.cursor_position < 0)
1503 gi->textinput.cursor_position = 0;
1504 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1505 gi->textinput.cursor_position = strlen(gi->textinput.value);
1508 // global pointer to gadget actually in use (when mouse button pressed)
1509 static struct GadgetInfo *last_gi = NULL;
1511 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
1513 if (gi == NULL || gi->deactivated || gi->mapped)
1516 // do not map overlay touch buttons if touch screen is not used
1517 if (gi->overlay_touch_button && !runtime.uses_touch_device)
1523 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
1526 void MapGadget(struct GadgetInfo *gi)
1528 MapGadgetExt(gi, TRUE);
1531 void UnmapGadget(struct GadgetInfo *gi)
1533 if (gi == NULL || gi->deactivated || !gi->mapped)
1542 #define MAX_NUM_GADGETS 1024
1543 #define MULTIMAP_UNMAP (1 << 0)
1544 #define MULTIMAP_REMAP (1 << 1)
1545 #define MULTIMAP_REDRAW (1 << 2)
1546 #define MULTIMAP_PLAYFIELD (1 << 3)
1547 #define MULTIMAP_DOOR_1 (1 << 4)
1548 #define MULTIMAP_DOOR_2 (1 << 5)
1549 #define MULTIMAP_DOOR_3 (1 << 6)
1550 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
1555 static void MultiMapGadgets(int mode)
1557 struct GadgetInfo *gi = gadget_list_first_entry;
1558 static boolean map_state[MAX_NUM_GADGETS];
1566 if ((mode & MULTIMAP_PLAYFIELD && IN_GFX_FIELD_FULL(x, y)) ||
1567 (mode & MULTIMAP_DOOR_1 && IN_GFX_DOOR_1(x, y)) ||
1568 (mode & MULTIMAP_DOOR_2 && IN_GFX_DOOR_2(x, y)) ||
1569 (mode & MULTIMAP_DOOR_3 && IN_GFX_DOOR_3(x, y)) ||
1570 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
1572 if (mode & MULTIMAP_UNMAP)
1574 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
1579 if (map_state[map_count++ % MAX_NUM_GADGETS])
1580 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
1588 void UnmapAllGadgets(void)
1590 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
1593 void RemapAllGadgets(void)
1595 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
1598 boolean anyTextInputGadgetActive(void)
1600 return (last_gi && (last_gi->type & GD_TYPE_TEXT_INPUT) && last_gi->mapped);
1603 boolean anyTextAreaGadgetActive(void)
1605 return (last_gi && (last_gi->type & GD_TYPE_TEXT_AREA) && last_gi->mapped);
1608 boolean anySelectboxGadgetActive(void)
1610 return (last_gi && (last_gi->type & GD_TYPE_SELECTBOX) && last_gi->mapped);
1613 boolean anyScrollbarGadgetActive(void)
1615 return (last_gi && (last_gi->type & GD_TYPE_SCROLLBAR) && last_gi->mapped);
1618 boolean anyTextGadgetActive(void)
1620 return (anyTextInputGadgetActive() ||
1621 anyTextAreaGadgetActive() ||
1622 anySelectboxGadgetActive());
1625 static boolean insideSelectboxLine(struct GadgetInfo *gi, int mx, int my)
1627 return (gi != NULL &&
1628 gi->type & GD_TYPE_SELECTBOX &&
1629 mx >= gi->x && mx < gi->x + gi->width &&
1630 my >= gi->y && my < gi->y + gi->height);
1633 static boolean insideSelectboxArea(struct GadgetInfo *gi, int mx, int my)
1635 return (gi != NULL &&
1636 gi->type & GD_TYPE_SELECTBOX &&
1637 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
1638 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height);
1641 void ClickOnGadget(struct GadgetInfo *gi, int button)
1643 if (gi == NULL || gi->deactivated || !gi->mapped)
1646 // simulate releasing mouse button over last gadget, if still pressed
1648 HandleGadgets(-1, -1, 0);
1653 // set cursor position to the end of the text for text input gadgets
1654 if (gi->type & GD_TYPE_TEXT_INPUT)
1655 x = gi->x + gi->width - 1;
1657 // simulate pressing mouse button over specified gadget
1658 HandleGadgets(x, y, button);
1660 // simulate releasing mouse button over specified gadget
1661 HandleGadgets(x, y, 0);
1664 boolean HandleGadgets(int mx, int my, int button)
1666 static DelayCounter pressed_delay = { GADGET_FRAME_DELAY };
1667 static int last_button = 0;
1668 static int last_mx = 0, last_my = 0;
1669 static int pressed_mx = 0, pressed_my = 0;
1670 static boolean keep_selectbox_open = FALSE;
1671 static boolean gadget_stopped = FALSE;
1672 int scrollbar_mouse_pos = 0;
1673 struct GadgetInfo *new_gi, *gi;
1674 boolean press_event;
1675 boolean release_event;
1676 boolean mouse_moving;
1677 boolean mouse_inside_select_line;
1678 boolean mouse_inside_select_area;
1679 boolean mouse_released_where_pressed;
1680 boolean gadget_pressed;
1681 boolean gadget_pressed_repeated;
1682 boolean gadget_pressed_off_borders;
1683 boolean gadget_pressed_inside_select_line;
1684 boolean gadget_pressed_delay_reached;
1685 boolean gadget_moving;
1686 boolean gadget_moving_inside;
1687 boolean gadget_moving_off_borders;
1688 boolean gadget_draggable;
1689 boolean gadget_dragging;
1690 boolean gadget_released;
1691 boolean gadget_released_inside;
1692 boolean gadget_released_inside_select_area;
1693 boolean gadget_released_off_borders;
1694 boolean changed_position = FALSE;
1696 // check if there are any gadgets defined
1697 if (gadget_list_first_entry == NULL)
1700 // simulated release of mouse button over last gadget
1701 if (mx == -1 && my == -1 && button == 0)
1707 // check which gadget is under the mouse pointer
1708 new_gi = getGadgetInfoFromMousePosition(mx, my, button);
1710 // check if button state has changed since last invocation
1711 press_event = (button != 0 && last_button == 0);
1712 release_event = (button == 0 && last_button != 0);
1713 last_button = button;
1715 // check if mouse has been moved since last invocation
1716 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
1720 if (press_event && new_gi != last_gi)
1726 mouse_released_where_pressed =
1727 (release_event && mx == pressed_mx && my == pressed_my);
1729 mouse_inside_select_line = insideSelectboxLine(new_gi, mx, my);
1730 mouse_inside_select_area = insideSelectboxArea(new_gi, mx, my);
1732 gadget_pressed_off_borders = (press_event && new_gi != last_gi);
1734 gadget_pressed_inside_select_line =
1735 (press_event && new_gi != NULL &&
1736 new_gi->type & GD_TYPE_SELECTBOX && new_gi->selectbox.open &&
1737 insideSelectboxLine(new_gi, mx, my));
1739 // if mouse button pressed outside text or selectbox gadget, deactivate it
1740 if (anyTextGadgetActive() &&
1741 (gadget_pressed_off_borders ||
1742 (gadget_pressed_inside_select_line && !mouse_inside_select_area)))
1744 struct GadgetInfo *gi = last_gi;
1745 boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_LEAVING) != 0);
1747 // check if text input gadget has changed its value
1748 if (gi->type & GD_TYPE_TEXT_INPUT)
1750 CheckRangeOfNumericInputGadget(gi);
1752 if (!strEqual(gi->textinput.last_value, gi->textinput.value))
1753 strcpy(gi->textinput.last_value, gi->textinput.value);
1755 gadget_changed = FALSE;
1758 // check if text area gadget has changed its value
1759 if (gi->type & GD_TYPE_TEXT_AREA)
1761 if (!strEqual(gi->textarea.last_value, gi->textarea.value))
1762 strcpy(gi->textarea.last_value, gi->textarea.value);
1764 gadget_changed = FALSE;
1767 // selectbox does not change its value when closed by clicking outside
1768 if (gi->type & GD_TYPE_SELECTBOX)
1769 gadget_changed = FALSE;
1771 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1773 gi->event.type = GD_EVENT_TEXT_LEAVING;
1775 if (!(gi->type & GD_TYPE_SELECTBOX))
1776 DoGadgetCallbackAction(gi, gadget_changed);
1780 if (gadget_pressed_inside_select_line)
1787 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
1788 gadget_pressed_repeated =
1789 (button != 0 && last_gi != NULL && new_gi == last_gi);
1791 gadget_pressed_delay_reached =
1792 DelayReached(&pressed_delay);
1794 gadget_released = (release_event && last_gi != NULL);
1795 gadget_released_inside = (gadget_released && new_gi == last_gi);
1796 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
1798 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
1799 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
1800 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
1802 // when handling selectbox, set additional state values
1803 if (gadget_released_inside && (last_gi->type & GD_TYPE_SELECTBOX))
1804 gadget_released_inside_select_area = insideSelectboxArea(last_gi, mx, my);
1806 gadget_released_inside_select_area = FALSE;
1808 // setting state for handling over-large selectbox
1809 if (keep_selectbox_open && (press_event || !mouse_inside_select_line))
1810 keep_selectbox_open = FALSE;
1812 // if new gadget pressed, store this gadget
1816 // 'gi' is actually handled gadget
1819 // if gadget is scrollbar, choose mouse position value
1820 if (gi && gi->type & GD_TYPE_SCROLLBAR)
1821 scrollbar_mouse_pos =
1822 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
1824 // if mouse button released, no gadget needs to be handled anymore
1825 if (gadget_released)
1827 if (gi->type & GD_TYPE_SELECTBOX &&
1828 (keep_selectbox_open ||
1829 mouse_released_where_pressed ||
1830 !gadget_released_inside_select_area ||
1831 !CURRENT_OPTION_SELECTABLE(gi))) // selectbox stays open
1833 gi->selectbox.stay_open = TRUE;
1837 else if (!(gi->type & GD_TYPE_TEXT_INPUT ||
1838 gi->type & GD_TYPE_TEXT_AREA)) // text input stays open
1842 // modify event position values even if no gadget is pressed
1843 if (button == 0 && !release_event)
1846 // if new gadget or if no gadget was pressed, release stopped processing
1847 if (gadget_pressed || new_gi == NULL)
1848 gadget_stopped = FALSE;
1850 // if gadget was stopped while being handled, stop gadget processing here
1856 int last_x = gi->event.x;
1857 int last_y = gi->event.y;
1858 int last_mx = gi->event.mx;
1859 int last_my = gi->event.my;
1861 gi->event.x = gi->event.mx = mx - gi->x;
1862 gi->event.y = gi->event.my = my - gi->y;
1864 if (gi->type == GD_TYPE_DRAWING_AREA)
1866 gi->event.x /= gi->drawing.item_xsize;
1867 gi->event.y /= gi->drawing.item_ysize;
1869 if (last_x != gi->event.x || last_y != gi->event.y ||
1870 ((last_mx != gi->event.mx || last_my != gi->event.my) &&
1871 gi->event_mask & GD_EVENT_PIXEL_PRECISE))
1872 changed_position = TRUE;
1874 else if (gi->type & GD_TYPE_TEXT_INPUT && button != 0 && !motion_status)
1876 int old_cursor_position = gi->textinput.cursor_position;
1878 // if mouse button pressed inside activated text gadget, set cursor
1879 gi->textinput.cursor_position =
1880 (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1882 if (gi->textinput.cursor_position < 0)
1883 gi->textinput.cursor_position = 0;
1884 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1885 gi->textinput.cursor_position = strlen(gi->textinput.value);
1887 if (gi->textinput.cursor_position != old_cursor_position)
1888 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1891 StartTextInput(gi->x, gi->y, gi->width, gi->height);
1893 else if (gi->type & GD_TYPE_TEXT_AREA && button != 0 && !motion_status)
1895 int old_cursor_position = gi->textarea.cursor_position;
1896 int x = (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1897 int y = (my - gi->y - gi->border.ysize) / getFontHeight(gi->font);
1899 x = (x < 0 ? 0 : x >= gi->textarea.xsize ? gi->textarea.xsize - 1 : x);
1900 y = (y < 0 ? 0 : y >= gi->textarea.ysize ? gi->textarea.ysize - 1 : y);
1902 setTextAreaCursorXY(gi, x, y);
1904 if (gi->textarea.cursor_position != old_cursor_position)
1905 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1908 StartTextInput(gi->x, gi->y, gi->width, gi->height);
1910 else if (gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
1911 !keep_selectbox_open)
1913 int old_index = gi->selectbox.current_index;
1915 // if mouse moving inside activated selectbox, select value
1916 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1917 gi->selectbox.current_index =
1918 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1920 if (gi->selectbox.current_index < 0)
1921 gi->selectbox.current_index = 0;
1922 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1923 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1925 if (gi->selectbox.current_index != old_index)
1926 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1930 // handle gadget popup info text
1931 if (last_info_gi != new_gi ||
1932 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
1934 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
1936 new_gi->event.type = GD_EVENT_INFO_ENTERING;
1937 new_gi->callback_info(new_gi);
1939 else if (last_info_gi != NULL && last_info_gi->mapped)
1941 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
1942 last_info_gi->callback_info(last_info_gi);
1945 last_info_gi = new_gi;
1948 gadget_draggable = (gi && gi->type & GD_TYPE_SCROLLBAR);
1950 // reset drag position for newly pressed scrollbar to "not dragging"
1951 if (gadget_pressed && gadget_draggable)
1952 gi->scrollbar.drag_position = -1;
1954 gadget_dragging = (gadget_draggable && gi->scrollbar.drag_position != -1);
1956 // clicking next to a scrollbar to move it is not considered "moving"
1957 if (gadget_draggable && !gadget_dragging)
1958 gadget_moving = FALSE;
1960 // when leaving scrollbar area when jump-scrolling, stop gadget processing
1961 if (gadget_draggable && !gadget_dragging && gadget_moving_off_borders)
1962 gadget_stopped = TRUE;
1964 if ((gadget_pressed) ||
1965 (gadget_pressed_repeated && gadget_pressed_delay_reached))
1967 if (gadget_pressed) // gadget pressed the first time
1969 // initialize delay counter
1970 ResetDelayCounter(&pressed_delay);
1972 // start gadget delay with longer delay after first click on gadget
1973 pressed_delay.value = GADGET_FRAME_DELAY_FIRST;
1975 else // gadget hold pressed for some time
1977 // after first repeated gadget click, continue with shorter delay value
1978 pressed_delay.value = GADGET_FRAME_DELAY;
1981 if (gi->type & GD_TYPE_SCROLLBAR && !gadget_dragging)
1983 int mpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx : my);
1984 int gpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? gi->x : gi->y);
1985 int slider_start = gpos + gi->scrollbar.position;
1986 int slider_end = gpos + gi->scrollbar.position + gi->scrollbar.size - 1;
1987 boolean inside_slider = (mpos >= slider_start && mpos <= slider_end);
1989 if (IS_WHEEL_BUTTON(button) || !inside_slider)
1991 // click scrollbar one scrollbar length up/left or down/right
1993 struct GadgetScrollbar *gs = &gi->scrollbar;
1994 int old_item_position = gs->item_position;
1995 int item_steps = gs->items_visible - 1;
1996 int item_direction = (mpos < gpos + gi->scrollbar.position ? -1 : +1);
1998 if (IS_WHEEL_BUTTON(button))
2000 boolean scroll_single_step = ((GetKeyModState() & KMOD_Alt) != 0);
2002 item_steps = (scroll_single_step ? 1 : wheel_steps);
2003 item_direction = (button == MB_WHEEL_UP ||
2004 button == MB_WHEEL_LEFT ? -1 : +1);
2007 changed_position = FALSE;
2009 gs->item_position += item_steps * item_direction;
2011 if (gs->item_position < 0)
2012 gs->item_position = 0;
2013 else if (gs->item_position > gs->items_max - gs->items_visible)
2014 gs->item_position = gs->items_max - gs->items_visible;
2016 if (old_item_position != gs->item_position)
2018 gi->event.item_position = gs->item_position;
2019 changed_position = TRUE;
2022 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
2025 gi->state = GD_BUTTON_UNPRESSED;
2026 gi->event.type = GD_EVENT_MOVING;
2027 gi->event.off_borders = FALSE;
2029 if (gi->event_mask & GD_EVENT_MOVING)
2030 DoGadgetCallbackAction(gi, changed_position);
2036 // don't handle this scrollbar anymore when mouse position reached
2037 if (gadget_pressed_repeated)
2039 gadget_stopped = TRUE;
2049 PlayGadgetSoundActivating();
2051 if (gi->type == GD_TYPE_CHECK_BUTTON)
2053 gi->checked = !gi->checked;
2055 else if (gi->type == GD_TYPE_RADIO_BUTTON)
2057 struct GadgetInfo *rgi = gadget_list_first_entry;
2062 rgi->type == GD_TYPE_RADIO_BUTTON &&
2063 rgi->radio_nr == gi->radio_nr &&
2066 rgi->checked = FALSE;
2067 DrawGadget(rgi, DG_UNPRESSED, rgi->direct_draw);
2075 else if (gi->type & GD_TYPE_SCROLLBAR)
2077 int mpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx : my);
2078 int gpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? gi->x : gi->y);
2079 int slider_start = gpos + gi->scrollbar.position;
2080 int slider_end = gpos + gi->scrollbar.position + gi->scrollbar.size - 1;
2081 boolean inside_slider = (mpos >= slider_start && mpos <= slider_end);
2083 if (!IS_WHEEL_BUTTON(button) && inside_slider)
2085 // start dragging scrollbar
2086 gi->scrollbar.drag_position =
2087 scrollbar_mouse_pos - gi->scrollbar.position;
2090 else if (gi->type & GD_TYPE_SELECTBOX)
2092 // keep selectbox open in case of over-large selectbox
2093 keep_selectbox_open = (mouse_inside_select_line &&
2094 mouse_inside_select_area);
2097 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2099 gi->state = GD_BUTTON_PRESSED;
2100 gi->event.type = GD_EVENT_PRESSED;
2101 gi->event.button = button;
2102 gi->event.off_borders = FALSE;
2104 if (gi->event_mask & GD_EVENT_PRESSED)
2105 gi->callback_action(gi);
2108 if (gadget_pressed_repeated)
2110 gi->event.type = GD_EVENT_PRESSED;
2112 if (gi->event_mask & GD_EVENT_REPEATED && gadget_pressed_delay_reached)
2113 gi->callback_action(gi);
2118 if (gi->type & GD_TYPE_BUTTON)
2120 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
2121 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2122 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
2123 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2125 else if (gi->type & GD_TYPE_SELECTBOX && !keep_selectbox_open)
2127 int old_index = gi->selectbox.current_index;
2129 // if mouse moving inside activated selectbox, select value
2130 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
2131 gi->selectbox.current_index =
2132 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
2134 if (gi->selectbox.current_index < 0)
2135 gi->selectbox.current_index = 0;
2136 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
2137 gi->selectbox.current_index = gi->selectbox.num_values - 1;
2139 if (gi->selectbox.current_index != old_index)
2140 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2142 else if (gi->type & GD_TYPE_SCROLLBAR)
2144 struct GadgetScrollbar *gs = &gi->scrollbar;
2145 int old_item_position = gs->item_position;
2147 gs->position = scrollbar_mouse_pos - gs->drag_position;
2149 // make sure to always precisely reach end positions when dragging
2150 if (gs->position <= 0)
2153 gs->item_position = 0;
2155 else if (gs->position >= gs->position_max)
2157 gs->position = gs->position_max;
2158 gs->item_position = gs->items_max - gs->items_visible;
2163 gs->items_max * (gs->position + gs->correction) / gs->size_max_cmp;
2166 if (gs->item_position < 0)
2167 gs->item_position = 0;
2168 if (gs->item_position > gs->items_max - 1)
2169 gs->item_position = gs->items_max - 1;
2171 if (old_item_position != gs->item_position)
2173 gi->event.item_position = gs->item_position;
2174 changed_position = TRUE;
2177 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2180 gi->state = (gadget_moving_inside || gadget_draggable ?
2181 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
2182 gi->event.type = GD_EVENT_MOVING;
2183 gi->event.off_borders = gadget_moving_off_borders;
2185 if (gi->event_mask & GD_EVENT_MOVING &&
2186 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
2187 DoGadgetCallbackAction(gi, changed_position);
2190 if (gadget_released_inside)
2192 boolean deactivate_gadget = TRUE;
2193 boolean gadget_changed = TRUE;
2195 if (gi->type == GD_TYPE_CHECK_BUTTON_2)
2197 gi->checked = !gi->checked;
2199 else if (gi->type & GD_TYPE_SELECTBOX)
2201 if (keep_selectbox_open ||
2202 mouse_released_where_pressed ||
2203 !gadget_released_inside_select_area ||
2204 !CURRENT_OPTION_SELECTABLE(gi)) // selectbox stays open
2206 deactivate_gadget = FALSE;
2207 gadget_changed = FALSE;
2209 else if (gi->selectbox.index != gi->selectbox.current_index)
2210 gi->selectbox.index = gi->selectbox.current_index;
2212 gadget_changed = FALSE;
2215 if (deactivate_gadget &&
2216 !(gi->type & GD_TYPE_TEXT_INPUT ||
2217 gi->type & GD_TYPE_TEXT_AREA)) // text input stays open
2218 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2220 gi->state = GD_BUTTON_UNPRESSED;
2221 gi->event.type = GD_EVENT_RELEASED;
2223 if ((gi->event_mask & GD_EVENT_RELEASED))
2224 DoGadgetCallbackAction(gi, gadget_changed);
2227 if (gadget_released_off_borders)
2229 if (gi->type & GD_TYPE_SCROLLBAR)
2230 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2232 gi->state = GD_BUTTON_UNPRESSED;
2233 gi->event.type = GD_EVENT_RELEASED;
2235 if (gi->event_mask & GD_EVENT_RELEASED &&
2236 gi->event_mask & GD_EVENT_OFF_BORDERS)
2237 gi->callback_action(gi);
2240 // handle gadgets unmapped/mapped between pressing and releasing
2241 if (release_event && !gadget_released && new_gi)
2242 new_gi->state = GD_BUTTON_UNPRESSED;
2244 return (gadget_pressed || gadget_pressed_repeated ||
2245 gadget_released || gadget_moving);
2248 static void insertCharIntoTextArea(struct GadgetInfo *gi, char c)
2250 char text[MAX_GADGET_TEXTSIZE + 1];
2251 int cursor_position = gi->textarea.cursor_position;
2253 if (strlen(gi->textarea.value) >= MAX_GADGET_TEXTSIZE) // no space left
2256 strcpy(text, gi->textarea.value);
2257 strcpy(&gi->textarea.value[cursor_position + 1], &text[cursor_position]);
2258 gi->textarea.value[cursor_position] = c;
2260 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2263 boolean HandleGadgetsKeyInput(Key key)
2265 struct GadgetInfo *gi = last_gi;
2267 if (gi == NULL || gi->deactivated || !gi->mapped ||
2268 !(gi->type & GD_TYPE_TEXT_INPUT ||
2269 gi->type & GD_TYPE_TEXT_AREA ||
2270 gi->type & GD_TYPE_SELECTBOX))
2273 if (key == KSYM_Escape)
2275 if (anyTextGadgetActive())
2277 boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_LEAVING) != 0);
2279 // restore previous text (before activating text gadget)
2280 if (gi->type & GD_TYPE_TEXT_INPUT)
2282 strcpy(gi->textinput.value, gi->textinput.last_value);
2284 CheckRangeOfNumericInputGadget(gi);
2287 // store current text for text area gadgets when pressing "Escape" key
2288 if (gi->type & GD_TYPE_TEXT_AREA)
2290 if (!strEqual(gi->textarea.last_value, gi->textarea.value))
2291 strcpy(gi->textarea.last_value, gi->textarea.value);
2293 gadget_changed = FALSE;
2296 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2298 if (gi->type & GD_TYPE_TEXT_AREA)
2300 gi->event.type = GD_EVENT_TEXT_LEAVING;
2302 DoGadgetCallbackAction(gi, gadget_changed);
2310 else if (key == KSYM_Return) // valid for both text input and selectbox
2312 boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_RETURN) != 0);
2314 if (gi->type & GD_TYPE_TEXT_INPUT)
2316 CheckRangeOfNumericInputGadget(gi);
2318 if (!strEqual(gi->textinput.last_value, gi->textinput.value))
2319 strcpy(gi->textinput.last_value, gi->textinput.value);
2321 gadget_changed = FALSE;
2325 else if (gi->type & GD_TYPE_SELECTBOX)
2327 if (gi->selectbox.index != gi->selectbox.current_index)
2328 gi->selectbox.index = gi->selectbox.current_index;
2330 gadget_changed = FALSE;
2333 if (gi->type & GD_TYPE_TEXT_AREA)
2335 insertCharIntoTextArea(gi, '\n');
2337 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2341 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2343 gi->event.type = GD_EVENT_TEXT_RETURN;
2348 DoGadgetCallbackAction(gi, gadget_changed);
2350 else if (gi->type & GD_TYPE_TEXT_INPUT) // only valid for text input
2352 char text[MAX_GADGET_TEXTSIZE + 1];
2353 int text_length = strlen(gi->textinput.value);
2354 int cursor_pos = gi->textinput.cursor_position;
2355 char letter = getCharFromKey(key);
2356 boolean legal_letter = (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC ?
2357 letter >= '0' && letter <= '9' :
2360 if (legal_letter && text_length < gi->textinput.size)
2362 strcpy(text, gi->textinput.value);
2363 strcpy(&gi->textinput.value[cursor_pos + 1], &text[cursor_pos]);
2364 gi->textinput.value[cursor_pos] = letter;
2365 gi->textinput.cursor_position++;
2367 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2369 else if (key == KSYM_Left && cursor_pos > 0)
2371 gi->textinput.cursor_position--;
2373 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2375 else if (key == KSYM_Right && cursor_pos < text_length)
2377 gi->textinput.cursor_position++;
2379 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2381 else if (key == KSYM_BackSpace && cursor_pos > 0)
2383 strcpy(text, gi->textinput.value);
2384 strcpy(&gi->textinput.value[cursor_pos - 1], &text[cursor_pos]);
2385 gi->textinput.cursor_position--;
2387 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2389 else if (key == KSYM_Delete && cursor_pos < text_length)
2391 strcpy(text, gi->textinput.value);
2392 strcpy(&gi->textinput.value[cursor_pos], &text[cursor_pos + 1]);
2394 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2396 else if (key == KSYM_Home && cursor_pos > 0)
2398 gi->textinput.cursor_position = 0;
2400 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2402 else if (key == KSYM_End && cursor_pos < text_length)
2404 gi->textinput.cursor_position = text_length;
2406 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2409 else if (gi->type & GD_TYPE_TEXT_AREA) // only valid for text area
2411 char text[MAX_GADGET_TEXTSIZE + 1];
2412 int text_length = strlen(gi->textarea.value);
2413 int area_ysize = gi->textarea.ysize;
2414 int cursor_x_pref = gi->textarea.cursor_x_preferred;
2415 int cursor_x = gi->textarea.cursor_x;
2416 int cursor_y = gi->textarea.cursor_y;
2417 int cursor_pos = gi->textarea.cursor_position;
2418 char letter = getCharFromKey(key);
2419 boolean legal_letter = (letter != 0);
2423 insertCharIntoTextArea(gi, letter);
2425 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2427 else if (key == KSYM_Left && cursor_pos > 0)
2429 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2431 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2433 else if (key == KSYM_Right && cursor_pos < text_length)
2435 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2437 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2439 else if (key == KSYM_Up && cursor_y > 0)
2441 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y - 1);
2442 gi->textarea.cursor_x_preferred = cursor_x_pref;
2444 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2446 else if (key == KSYM_Down && cursor_y < area_ysize - 1)
2448 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y + 1);
2449 gi->textarea.cursor_x_preferred = cursor_x_pref;
2451 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2453 else if (key == KSYM_BackSpace && cursor_pos > 0)
2455 strcpy(text, gi->textarea.value);
2456 strcpy(&gi->textarea.value[cursor_pos - 1], &text[cursor_pos]);
2458 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2460 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2462 else if (key == KSYM_Delete && cursor_pos < text_length)
2464 strcpy(text, gi->textarea.value);
2465 strcpy(&gi->textarea.value[cursor_pos], &text[cursor_pos + 1]);
2467 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2469 else if (key == KSYM_Home && cursor_x > 0)
2471 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - cursor_x);
2473 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2475 else if (key == KSYM_End && cursor_pos < text_length)
2477 int last_cursor_pos = cursor_pos;
2479 while (gi->textarea.value[cursor_pos] != '\0' &&
2480 gi->textarea.value[cursor_pos] != '\n')
2483 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + cursor_pos -
2486 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2489 else if (gi->type & GD_TYPE_SELECTBOX) // only valid for selectbox
2491 int index = gi->selectbox.current_index;
2492 int num_values = gi->selectbox.num_values;
2494 if (key == KSYM_Up && index > 0)
2496 gi->selectbox.current_index--;
2498 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2500 else if (key == KSYM_Down && index < num_values - 1)
2502 gi->selectbox.current_index++;
2504 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2511 void DumpGadgetIdentifiers(void)
2513 struct GadgetInfo *gi;
2515 Print("Gadgets on current screen:\n");
2517 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
2519 if (gi->mapped && gi->image_id != -1)
2521 char *token = getTokenFromImageID(gi->image_id);
2522 char *prefix = "gfx.";
2524 if (strPrefix(token, prefix))
2525 token = &token[strlen(prefix)];
2527 Print("- '%s'\n", token);
2534 boolean DoGadgetAction(int image_id)
2536 struct GadgetInfo *gi;
2538 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
2540 if (gi->mapped && gi->image_id == image_id)
2542 gi->callback_action(gi);