1 /***********************************************************
2 * Artsoft Retro-Game Library *
3 *----------------------------------------------------------*
4 * (c) 1994-2002 Artsoft Entertainment *
6 * Detmolder Strasse 189 *
9 * e-mail: info@artsoft.org *
10 *----------------------------------------------------------*
12 ***********************************************************/
22 /* values for DrawGadget() */
23 #define DG_UNPRESSED 0
28 static struct GadgetInfo *gadget_list_first_entry = NULL;
29 static struct GadgetInfo *gadget_list_last_entry = NULL;
30 static int next_free_gadget_id = 1;
31 static boolean gadget_id_wrapped = FALSE;
33 static struct GadgetInfo *getGadgetInfoFromGadgetID(int id)
35 struct GadgetInfo *gi = gadget_list_first_entry;
37 while (gi && gi->id != id)
43 static int getNewGadgetID()
45 int id = next_free_gadget_id++;
47 if (next_free_gadget_id <= 0) /* counter overrun */
49 gadget_id_wrapped = TRUE; /* now we must check each ID */
50 next_free_gadget_id = 0;
53 if (gadget_id_wrapped)
55 next_free_gadget_id++;
56 while (getGadgetInfoFromGadgetID(next_free_gadget_id) != NULL)
57 next_free_gadget_id++;
60 if (next_free_gadget_id <= 0) /* cannot get new gadget id */
61 Error(ERR_EXIT, "too much gadgets -- this should not happen");
67 void DUMP_GADGET_MAP_STATE()
69 struct GadgetInfo *gi = gadget_list_first_entry;
73 printf("-XXX-1-> '%s': %s\n",
74 gi->info_text, (gi->mapped ? "mapped" : "not mapped"));
81 static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my)
83 struct GadgetInfo *gi = gadget_list_first_entry;
88 mx >= gi->x && mx < gi->x + gi->width &&
89 my >= gi->y && my < gi->y + gi->height)
98 static void default_callback_info(void *ptr)
103 static void default_callback_action(void *ptr)
108 static void DrawGadget(struct GadgetInfo *gi, boolean pressed, boolean direct)
110 int state = (pressed ? 1 : 0);
111 struct GadgetDesign *gd = (gi->checked ?
112 &gi->alt_design[state] :
117 case GD_TYPE_NORMAL_BUTTON:
118 case GD_TYPE_CHECK_BUTTON:
119 case GD_TYPE_RADIO_BUTTON:
120 BlitBitmapOnBackground(gd->bitmap, drawto,
121 gd->x, gd->y, gi->width, gi->height,
123 if (gi->deco.design.bitmap)
124 BlitBitmap(gi->deco.design.bitmap, drawto,
125 gi->deco.design.x, gi->deco.design.y,
126 gi->deco.width, gi->deco.height,
127 gi->x + gi->deco.x + (pressed ? gi->deco.xshift : 0),
128 gi->y + gi->deco.y + (pressed ? gi->deco.yshift : 0));
131 case GD_TYPE_TEXTINPUT_ALPHANUMERIC:
132 case GD_TYPE_TEXTINPUT_NUMERIC:
136 char cursor_string[3];
137 char text[MAX_GADGET_TEXTSIZE + 1];
138 int font_type = gi->text.font_type;
139 int font_width = getFontWidth(FS_SMALL, font_type);
140 int border = gi->border.size;
141 strcpy(text, gi->text.value);
144 /* left part of gadget */
145 BlitBitmap(gd->bitmap, drawto,
146 gd->x, gd->y, border, gi->height, gi->x, gi->y);
148 /* middle part of gadget */
149 for (i=0; i<=gi->text.size; i++)
150 BlitBitmap(gd->bitmap, drawto,
151 gd->x + border, gd->y, font_width, gi->height,
152 gi->x + border + i * font_width, gi->y);
154 /* right part of gadget */
155 BlitBitmap(gd->bitmap, drawto,
156 gd->x + gi->border.width - border, gd->y,
157 border, gi->height, gi->x + gi->width - border, gi->y);
159 /* gadget text value */
161 gi->x + border, gi->y + border, text,
162 FS_SMALL, font_type, FONT_OPAQUE);
164 cursor_letter = gi->text.value[gi->text.cursor_position];
165 cursor_string[0] = '~';
166 cursor_string[1] = (cursor_letter != '\0' ? cursor_letter : ' ');
167 cursor_string[2] = '\0';
169 /* draw cursor, if active */
172 gi->x + border + gi->text.cursor_position * font_width,
173 gi->y + border, cursor_string,
174 FS_SMALL, font_type, FONT_OPAQUE);
178 case GD_TYPE_SCROLLBAR_VERTICAL:
182 int ypos = gi->y + gi->scrollbar.position;
183 int design_full = gi->width;
184 int design_body = design_full - 2 * gi->border.size;
185 int size_full = gi->scrollbar.size;
186 int size_body = size_full - 2 * gi->border.size;
187 int num_steps = size_body / design_body;
188 int step_size_remain = size_body - num_steps * design_body;
190 /* clear scrollbar area */
191 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
192 gi->width, gi->height);
194 /* upper part of gadget */
195 BlitBitmapOnBackground(gd->bitmap, drawto,
197 gi->width, gi->border.size,
200 /* middle part of gadget */
201 for (i=0; i<num_steps; i++)
202 BlitBitmapOnBackground(gd->bitmap, drawto,
203 gd->x, gd->y + gi->border.size,
204 gi->width, design_body,
205 xpos, ypos + gi->border.size
208 /* remaining middle part of gadget */
209 if (step_size_remain > 0)
210 BlitBitmapOnBackground(gd->bitmap, drawto,
211 gd->x, gd->y + gi->border.size,
212 gi->width, step_size_remain,
213 xpos, ypos + gi->border.size
214 + num_steps * design_body);
216 /* lower part of gadget */
217 BlitBitmapOnBackground(gd->bitmap, drawto,
218 gd->x, gd->y + design_full - gi->border.size,
219 gi->width, gi->border.size,
220 xpos, ypos + size_full - gi->border.size);
224 case GD_TYPE_SCROLLBAR_HORIZONTAL:
227 int xpos = gi->x + gi->scrollbar.position;
229 int design_full = gi->height;
230 int design_body = design_full - 2 * gi->border.size;
231 int size_full = gi->scrollbar.size;
232 int size_body = size_full - 2 * gi->border.size;
233 int num_steps = size_body / design_body;
234 int step_size_remain = size_body - num_steps * design_body;
236 /* clear scrollbar area */
237 ClearRectangle(backbuffer, gi->x, gi->y, gi->width, gi->height);
239 /* left part of gadget */
240 BlitBitmap(gd->bitmap, drawto,
242 gi->border.size, gi->height,
245 /* middle part of gadget */
246 for (i=0; i<num_steps; i++)
247 BlitBitmap(gd->bitmap, drawto,
248 gd->x + gi->border.size, gd->y,
249 design_body, gi->height,
250 xpos + gi->border.size + i * design_body, ypos);
252 /* remaining middle part of gadget */
253 if (step_size_remain > 0)
254 BlitBitmap(gd->bitmap, drawto,
255 gd->x + gi->border.size, gd->y,
256 step_size_remain, gi->height,
257 xpos + gi->border.size + num_steps * design_body, ypos);
259 /* right part of gadget */
260 BlitBitmap(gd->bitmap, drawto,
261 gd->x + design_full - gi->border.size, gd->y,
262 gi->border.size, gi->height,
263 xpos + size_full - gi->border.size, ypos);
272 BlitBitmap(drawto, window,
273 gi->x, gi->y, gi->width, gi->height, gi->x, gi->y);
275 redraw_mask |= (gi->x < gfx.sx + gfx.sxsize ? REDRAW_FIELD :
276 gi->y < gfx.dy + gfx.dysize ? REDRAW_DOOR_1 :
277 gi->y > gfx.vy ? REDRAW_DOOR_2 : REDRAW_DOOR_3);
280 static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
284 while (tag != GDI_END)
289 gi->custom_id = va_arg(ap, int);
292 case GDI_CUSTOM_TYPE_ID:
293 gi->custom_type_id = va_arg(ap, int);
298 int max_textsize = MAX_INFO_TEXTSIZE - 1;
299 char *text = va_arg(ap, char *);
302 strncpy(gi->info_text, text, max_textsize);
306 gi->info_text[max_textsize] = '\0';
311 gi->x = va_arg(ap, int);
315 gi->y = va_arg(ap, int);
319 gi->width = va_arg(ap, int);
323 gi->height = va_arg(ap, int);
327 gi->type = va_arg(ap, unsigned long);
331 gi->state = va_arg(ap, unsigned long);
335 /* take care here: "boolean" is typedef'ed as "unsigned char",
336 which gets promoted to "int" */
337 gi->checked = (boolean)va_arg(ap, int);
341 gi->radio_nr = va_arg(ap, unsigned long);
344 case GDI_NUMBER_VALUE:
345 gi->text.number_value = va_arg(ap, long);
346 sprintf(gi->text.value, "%d", gi->text.number_value);
347 gi->text.cursor_position = strlen(gi->text.value);
351 gi->text.number_min = va_arg(ap, long);
352 if (gi->text.number_value < gi->text.number_min)
354 gi->text.number_value = gi->text.number_min;
355 sprintf(gi->text.value, "%d", gi->text.number_value);
360 gi->text.number_max = va_arg(ap, long);
361 if (gi->text.number_value > gi->text.number_max)
363 gi->text.number_value = gi->text.number_max;
364 sprintf(gi->text.value, "%d", gi->text.number_value);
370 int max_textsize = MAX_GADGET_TEXTSIZE;
373 max_textsize = MIN(gi->text.size, MAX_GADGET_TEXTSIZE - 1);
375 strncpy(gi->text.value, va_arg(ap, char *), max_textsize);
376 gi->text.value[max_textsize] = '\0';
377 gi->text.cursor_position = strlen(gi->text.value);
383 int tag_value = va_arg(ap, int);
384 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE - 1);
386 gi->text.size = max_textsize;
387 gi->text.value[max_textsize] = '\0';
392 gi->text.font_type = va_arg(ap, int);
395 case GDI_DESIGN_UNPRESSED:
396 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
397 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
398 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
401 case GDI_DESIGN_PRESSED:
402 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
403 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
404 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
407 case GDI_ALT_DESIGN_UNPRESSED:
408 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
409 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
410 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
413 case GDI_ALT_DESIGN_PRESSED:
414 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
415 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
416 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
419 case GDI_BORDER_SIZE:
420 gi->border.size = va_arg(ap, int);
423 case GDI_TEXTINPUT_DESIGN_WIDTH:
424 gi->border.width = va_arg(ap, int);
427 case GDI_DECORATION_DESIGN:
428 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
429 gi->deco.design.x = va_arg(ap, int);
430 gi->deco.design.y = va_arg(ap, int);
433 case GDI_DECORATION_POSITION:
434 gi->deco.x = va_arg(ap, int);
435 gi->deco.y = va_arg(ap, int);
438 case GDI_DECORATION_SIZE:
439 gi->deco.width = va_arg(ap, int);
440 gi->deco.height = va_arg(ap, int);
443 case GDI_DECORATION_SHIFTING:
444 gi->deco.xshift = va_arg(ap, int);
445 gi->deco.yshift = va_arg(ap, int);
449 gi->event_mask = va_arg(ap, unsigned long);
453 gi->drawing.area_xsize = va_arg(ap, int);
454 gi->drawing.area_ysize = va_arg(ap, int);
456 /* determine dependent values for drawing area gadget, if needed */
457 if (gi->width == 0 && gi->height == 0 &&
458 gi->drawing.item_xsize !=0 && gi->drawing.item_ysize !=0)
460 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
461 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
463 else if (gi->drawing.item_xsize == 0 && gi->drawing.item_ysize == 0 &&
464 gi->width != 0 && gi->height != 0)
466 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
467 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
472 gi->drawing.item_xsize = va_arg(ap, int);
473 gi->drawing.item_ysize = va_arg(ap, int);
475 /* determine dependent values for drawing area gadget, if needed */
476 if (gi->width == 0 && gi->height == 0 &&
477 gi->drawing.area_xsize !=0 && gi->drawing.area_ysize !=0)
479 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
480 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
482 else if (gi->drawing.area_xsize == 0 && gi->drawing.area_ysize == 0 &&
483 gi->width != 0 && gi->height != 0)
485 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
486 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
490 case GDI_SCROLLBAR_ITEMS_MAX:
491 gi->scrollbar.items_max = va_arg(ap, int);
494 case GDI_SCROLLBAR_ITEMS_VISIBLE:
495 gi->scrollbar.items_visible = va_arg(ap, int);
498 case GDI_SCROLLBAR_ITEM_POSITION:
499 gi->scrollbar.item_position = va_arg(ap, int);
502 case GDI_CALLBACK_INFO:
503 gi->callback_info = va_arg(ap, gadget_function);
506 case GDI_CALLBACK_ACTION:
507 gi->callback_action = va_arg(ap, gadget_function);
511 Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
514 tag = va_arg(ap, int); /* read next tag */
517 /* check if gadget complete */
518 if (gi->type != GD_TYPE_DRAWING_AREA &&
519 (!gi->design[GD_BUTTON_UNPRESSED].bitmap ||
520 !gi->design[GD_BUTTON_PRESSED].bitmap))
521 Error(ERR_EXIT, "gadget incomplete (missing Bitmap)");
523 /* adjust gadget values in relation to other gadget values */
525 if (gi->type & GD_TYPE_TEXTINPUT)
527 int font_width = getFontWidth(FS_SMALL, gi->text.font_type);
528 int font_height = getFontHeight(FS_SMALL, gi->text.font_type);
530 gi->width = 2 * gi->border.size + (gi->text.size + 1) * font_width;
531 gi->height = 2 * gi->border.size + font_height;
534 if (gi->type & GD_TYPE_TEXTINPUT_NUMERIC)
536 struct GadgetTextInput *text = &gi->text;
537 int value = text->number_value;
539 text->number_value = (value < text->number_min ? text->number_min :
540 value > text->number_max ? text->number_max :
543 sprintf(text->value, "%d", text->number_value);
546 if (gi->type & GD_TYPE_SCROLLBAR)
548 struct GadgetScrollbar *gs = &gi->scrollbar;
550 if (gi->width == 0 || gi->height == 0 ||
551 gs->items_max == 0 || gs->items_visible == 0)
552 Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
554 /* calculate internal scrollbar values */
555 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
556 gi->height : gi->width);
557 gs->size = gs->size_max * gs->items_visible / gs->items_max;
558 gs->position = gs->size_max * gs->item_position / gs->items_max;
559 gs->position_max = gs->size_max - gs->size;
560 gs->correction = gs->size_max / gs->items_max / 2;
562 /* finetuning for maximal right/bottom position */
563 if (gs->item_position == gs->items_max - gs->items_visible)
564 gs->position = gs->position_max;
568 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
572 va_start(ap, first_tag);
573 HandleGadgetTags(gi, first_tag, ap);
579 void RedrawGadget(struct GadgetInfo *gi)
582 DrawGadget(gi, gi->state, DG_DIRECT);
585 struct GadgetInfo *CreateGadget(int first_tag, ...)
587 struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
590 /* always start with reliable default values */
591 new_gadget->id = getNewGadgetID();
592 new_gadget->callback_info = default_callback_info;
593 new_gadget->callback_action = default_callback_action;
594 new_gadget->next = NULL;
596 va_start(ap, first_tag);
597 HandleGadgetTags(new_gadget, first_tag, ap);
600 /* insert new gadget into global gadget list */
601 if (gadget_list_last_entry)
603 gadget_list_last_entry->next = new_gadget;
604 gadget_list_last_entry = gadget_list_last_entry->next;
607 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
612 void FreeGadget(struct GadgetInfo *gi)
614 struct GadgetInfo *gi_previous = gadget_list_first_entry;
616 while (gi_previous && gi_previous->next != gi)
617 gi_previous = gi_previous->next;
619 if (gi == gadget_list_first_entry)
620 gadget_list_first_entry = gi->next;
622 if (gi == gadget_list_last_entry)
623 gadget_list_last_entry = gi_previous;
626 gi_previous->next = gi->next;
631 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
633 if (gi->type != GD_TYPE_TEXTINPUT_NUMERIC)
636 gi->text.number_value = atoi(gi->text.value);
638 if (gi->text.number_value < gi->text.number_min)
639 gi->text.number_value = gi->text.number_min;
640 if (gi->text.number_value > gi->text.number_max)
641 gi->text.number_value = gi->text.number_max;
643 sprintf(gi->text.value, "%d", gi->text.number_value);
645 if (gi->text.cursor_position < 0)
646 gi->text.cursor_position = 0;
647 else if (gi->text.cursor_position > strlen(gi->text.value))
648 gi->text.cursor_position = strlen(gi->text.value);
651 /* global pointer to gadget actually in use (when mouse button pressed) */
652 static struct GadgetInfo *last_gi = NULL;
654 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
656 if (gi == NULL || gi->mapped)
662 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
665 void MapGadget(struct GadgetInfo *gi)
667 MapGadgetExt(gi, TRUE);
670 void UnmapGadget(struct GadgetInfo *gi)
672 if (gi == NULL || !gi->mapped)
681 #define MAX_NUM_GADGETS 1024
682 #define MULTIMAP_UNMAP (1 << 0)
683 #define MULTIMAP_REMAP (1 << 1)
684 #define MULTIMAP_REDRAW (1 << 2)
685 #define MULTIMAP_PLAYFIELD (1 << 3)
686 #define MULTIMAP_DOOR_1 (1 << 4)
687 #define MULTIMAP_DOOR_2 (1 << 5)
688 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
692 static void MultiMapGadgets(int mode)
694 struct GadgetInfo *gi = gadget_list_first_entry;
695 static boolean map_state[MAX_NUM_GADGETS];
700 if ((mode & MULTIMAP_PLAYFIELD &&
701 gi->x < gfx.sx + gfx.sxsize) ||
702 (mode & MULTIMAP_DOOR_1 &&
703 gi->x >= gfx.dx && gi->y < gfx.dy + gfx.dysize) ||
704 (mode & MULTIMAP_DOOR_2 &&
705 gi->x >= gfx.dx && gi->y > gfx.dy + gfx.dysize) ||
706 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
708 if (mode & MULTIMAP_UNMAP)
710 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
715 if (map_state[map_count++ % MAX_NUM_GADGETS])
716 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
724 void UnmapAllGadgets()
726 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
729 void RemapAllGadgets()
731 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
734 boolean anyTextGadgetActive()
736 return (last_gi && last_gi->type & GD_TYPE_TEXTINPUT && last_gi->mapped);
739 void ClickOnGadget(struct GadgetInfo *gi, int button)
741 /* simulate releasing mouse button over last gadget, if still pressed */
743 HandleGadgets(-1, -1, 0);
745 /* simulate pressing mouse button over specified gadget */
746 HandleGadgets(gi->x, gi->y, button);
748 /* simulate releasing mouse button over specified gadget */
749 HandleGadgets(gi->x, gi->y, 0);
752 void HandleGadgets(int mx, int my, int button)
754 static struct GadgetInfo *last_info_gi = NULL;
755 static unsigned long pressed_delay = 0;
756 static int last_button = 0;
757 static int last_mx = 0, last_my = 0;
758 int scrollbar_mouse_pos = 0;
759 struct GadgetInfo *new_gi, *gi;
761 boolean release_event;
762 boolean mouse_moving;
763 boolean gadget_pressed;
764 boolean gadget_pressed_repeated;
765 boolean gadget_moving;
766 boolean gadget_moving_inside;
767 boolean gadget_moving_off_borders;
768 boolean gadget_released;
769 boolean gadget_released_inside;
770 boolean gadget_released_off_borders;
771 boolean changed_position = FALSE;
773 /* check if there are any gadgets defined */
774 if (gadget_list_first_entry == NULL)
777 /* check which gadget is under the mouse pointer */
778 new_gi = getGadgetInfoFromMousePosition(mx, my);
780 /* check if button state has changed since last invocation */
781 press_event = (button != 0 && last_button == 0);
782 release_event = (button == 0 && last_button != 0);
783 last_button = button;
785 /* check if mouse has been moved since last invocation */
786 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
790 /* special treatment for text and number input gadgets */
791 if (anyTextGadgetActive() && button != 0 && !motion_status)
793 struct GadgetInfo *gi = last_gi;
795 if (new_gi == last_gi)
797 /* if mouse button pressed inside activated text gadget, set cursor */
798 gi->text.cursor_position =
799 (mx - gi->x - gi->border.size) /
800 getFontWidth(FS_SMALL, gi->text.font_type);
802 if (gi->text.cursor_position < 0)
803 gi->text.cursor_position = 0;
804 else if (gi->text.cursor_position > strlen(gi->text.value))
805 gi->text.cursor_position = strlen(gi->text.value);
807 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
811 /* if mouse button pressed outside text input gadget, deactivate it */
812 CheckRangeOfNumericInputGadget(gi);
813 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
815 gi->event.type = GD_EVENT_TEXT_LEAVING;
817 if (gi->event_mask & GD_EVENT_TEXT_LEAVING)
818 gi->callback_action(gi);
825 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
826 gadget_pressed_repeated =
827 (button != 0 && last_gi != NULL && new_gi == last_gi);
829 gadget_released = (release_event && last_gi != NULL);
830 gadget_released_inside = (gadget_released && new_gi == last_gi);
831 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
833 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
834 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
835 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
837 /* if new gadget pressed, store this gadget */
841 /* 'gi' is actually handled gadget */
844 /* if gadget is scrollbar, choose mouse position value */
845 if (gi && gi->type & GD_TYPE_SCROLLBAR)
846 scrollbar_mouse_pos =
847 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
849 /* if mouse button released, no gadget needs to be handled anymore */
850 if (button == 0 && last_gi && !(last_gi->type & GD_TYPE_TEXTINPUT))
853 /* modify event position values even if no gadget is pressed */
854 if (button == 0 && !release_event)
859 int last_x = gi->event.x;
860 int last_y = gi->event.y;
862 gi->event.x = mx - gi->x;
863 gi->event.y = my - gi->y;
865 if (gi->type == GD_TYPE_DRAWING_AREA)
867 gi->event.x /= gi->drawing.item_xsize;
868 gi->event.y /= gi->drawing.item_ysize;
870 if (last_x != gi->event.x || last_y != gi->event.y)
871 changed_position = TRUE;
875 /* handle gadget popup info text */
876 if (last_info_gi != new_gi ||
877 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
879 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
881 new_gi->event.type = GD_EVENT_INFO_ENTERING;
882 new_gi->callback_info(new_gi);
884 else if (last_info_gi != NULL)
886 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
887 last_info_gi->callback_info(last_info_gi);
890 default_callback_info(NULL);
892 printf("It seems that we are leaving gadget [%s]!\n",
893 (last_info_gi != NULL &&
894 last_info_gi->info_text != NULL ?
895 last_info_gi->info_text : ""));
899 last_info_gi = new_gi;
904 if (gi->type == GD_TYPE_CHECK_BUTTON)
906 gi->checked = !gi->checked;
908 else if (gi->type == GD_TYPE_RADIO_BUTTON)
910 struct GadgetInfo *rgi = gadget_list_first_entry;
915 rgi->type == GD_TYPE_RADIO_BUTTON &&
916 rgi->radio_nr == gi->radio_nr &&
919 rgi->checked = FALSE;
920 DrawGadget(rgi, DG_UNPRESSED, DG_DIRECT);
928 else if (gi->type & GD_TYPE_SCROLLBAR)
932 if (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL)
943 if (mpos >= gpos + gi->scrollbar.position &&
944 mpos < gpos + gi->scrollbar.position + gi->scrollbar.size)
947 gi->scrollbar.drag_position =
948 scrollbar_mouse_pos - gi->scrollbar.position;
952 /* click scrollbar one scrollbar length up/left or down/right */
954 struct GadgetScrollbar *gs = &gi->scrollbar;
955 int old_item_position = gs->item_position;
957 changed_position = FALSE;
960 gs->items_visible * (mpos < gpos + gi->scrollbar.position ? -1 : +1);
962 if (gs->item_position < 0)
963 gs->item_position = 0;
964 if (gs->item_position > gs->items_max - gs->items_visible)
965 gs->item_position = gs->items_max - gs->items_visible;
967 if (old_item_position != gs->item_position)
969 gi->event.item_position = gs->item_position;
970 changed_position = TRUE;
973 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
976 gi->state = GD_BUTTON_UNPRESSED;
977 gi->event.type = GD_EVENT_MOVING;
978 gi->event.off_borders = FALSE;
980 if (gi->event_mask & GD_EVENT_MOVING && changed_position)
981 gi->callback_action(gi);
983 /* don't handle this scrollbar anymore while mouse button pressed */
990 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
992 gi->state = GD_BUTTON_PRESSED;
993 gi->event.type = GD_EVENT_PRESSED;
994 gi->event.button = button;
995 gi->event.off_borders = FALSE;
997 /* initialize delay counter */
998 DelayReached(&pressed_delay, 0);
1000 if (gi->event_mask & GD_EVENT_PRESSED)
1001 gi->callback_action(gi);
1004 if (gadget_pressed_repeated)
1006 gi->event.type = GD_EVENT_PRESSED;
1008 if (gi->event_mask & GD_EVENT_REPEATED &&
1009 DelayReached(&pressed_delay, GADGET_FRAME_DELAY))
1010 gi->callback_action(gi);
1015 if (gi->type & GD_TYPE_BUTTON)
1017 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
1018 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1019 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
1020 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1023 if (gi->type & GD_TYPE_SCROLLBAR)
1025 struct GadgetScrollbar *gs = &gi->scrollbar;
1026 int old_item_position = gs->item_position;
1028 gs->position = scrollbar_mouse_pos - gs->drag_position;
1030 if (gs->position < 0)
1032 if (gs->position > gs->position_max)
1033 gs->position = gs->position_max;
1036 gs->items_max * (gs->position + gs->correction) / gs->size_max;
1038 if (gs->item_position < 0)
1039 gs->item_position = 0;
1040 if (gs->item_position > gs->items_max - 1)
1041 gs->item_position = gs->items_max - 1;
1043 if (old_item_position != gs->item_position)
1045 gi->event.item_position = gs->item_position;
1046 changed_position = TRUE;
1049 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1052 gi->state = (gadget_moving_inside || gi->type & GD_TYPE_SCROLLBAR ?
1053 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
1054 gi->event.type = GD_EVENT_MOVING;
1055 gi->event.off_borders = gadget_moving_off_borders;
1057 if (gi->event_mask & GD_EVENT_MOVING && changed_position &&
1058 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
1059 gi->callback_action(gi);
1062 if (gadget_released_inside)
1064 if (!(gi->type & GD_TYPE_TEXTINPUT))
1065 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1067 gi->state = GD_BUTTON_UNPRESSED;
1068 gi->event.type = GD_EVENT_RELEASED;
1070 if (gi->event_mask & GD_EVENT_RELEASED)
1071 gi->callback_action(gi);
1074 if (gadget_released_off_borders)
1076 if (gi->type & GD_TYPE_SCROLLBAR)
1077 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1079 gi->event.type = GD_EVENT_RELEASED;
1081 if (gi->event_mask & GD_EVENT_RELEASED &&
1082 gi->event_mask & GD_EVENT_OFF_BORDERS)
1083 gi->callback_action(gi);
1087 void HandleGadgetsKeyInput(Key key)
1089 struct GadgetInfo *gi = last_gi;
1090 char text[MAX_GADGET_TEXTSIZE];
1094 boolean legal_letter;
1096 if (gi == NULL || !(gi->type & GD_TYPE_TEXTINPUT) || !gi->mapped)
1099 text_length = strlen(gi->text.value);
1100 cursor_pos = gi->text.cursor_position;
1101 letter = getCharFromKey(key);
1102 legal_letter = (gi->type == GD_TYPE_TEXTINPUT_NUMERIC ?
1103 letter >= '0' && letter <= '9' :
1106 if (legal_letter && text_length < gi->text.size)
1108 strcpy(text, gi->text.value);
1109 strcpy(&gi->text.value[cursor_pos + 1], &text[cursor_pos]);
1110 gi->text.value[cursor_pos] = letter;
1111 gi->text.cursor_position++;
1112 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1114 else if (key == KSYM_Left && cursor_pos > 0)
1116 gi->text.cursor_position--;
1117 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1119 else if (key == KSYM_Right && cursor_pos < text_length)
1121 gi->text.cursor_position++;
1122 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1124 else if (key == KSYM_BackSpace && cursor_pos > 0)
1126 strcpy(text, gi->text.value);
1127 strcpy(&gi->text.value[cursor_pos - 1], &text[cursor_pos]);
1128 gi->text.cursor_position--;
1129 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1131 else if (key == KSYM_Delete && cursor_pos < text_length)
1133 strcpy(text, gi->text.value);
1134 strcpy(&gi->text.value[cursor_pos], &text[cursor_pos + 1]);
1135 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1137 else if (key == KSYM_Return)
1139 CheckRangeOfNumericInputGadget(gi);
1140 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1142 gi->event.type = GD_EVENT_TEXT_RETURN;
1144 if (gi->event_mask & GD_EVENT_TEXT_RETURN)
1145 gi->callback_action(gi);