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 BlitBitmap(gd->bitmap, drawto,
121 gd->x, gd->y, gi->width, gi->height, gi->x, gi->y);
122 if (gi->deco.design.bitmap)
123 BlitBitmap(gi->deco.design.bitmap, drawto,
124 gi->deco.design.x, gi->deco.design.y,
125 gi->deco.width, gi->deco.height,
126 gi->x + gi->deco.x + (pressed ? gi->deco.xshift : 0),
127 gi->y + gi->deco.y + (pressed ? gi->deco.yshift : 0));
130 case GD_TYPE_TEXTINPUT_ALPHANUMERIC:
131 case GD_TYPE_TEXTINPUT_NUMERIC:
135 char cursor_string[3];
136 char text[MAX_GADGET_TEXTSIZE + 1];
137 int font_type = gi->text.font_type;
138 int font_width = getFontWidth(FS_SMALL, font_type);
139 int border = gi->border.size;
140 strcpy(text, gi->text.value);
143 /* left part of gadget */
144 BlitBitmap(gd->bitmap, drawto,
145 gd->x, gd->y, border, gi->height, gi->x, gi->y);
147 /* middle part of gadget */
148 for (i=0; i<=gi->text.size; i++)
149 BlitBitmap(gd->bitmap, drawto,
150 gd->x + border, gd->y, font_width, gi->height,
151 gi->x + border + i * font_width, gi->y);
153 /* right part of gadget */
154 BlitBitmap(gd->bitmap, drawto,
155 gd->x + gi->border.width - border, gd->y,
156 border, gi->height, gi->x + gi->width - border, gi->y);
158 /* gadget text value */
159 DrawText(gi->x + border, gi->y + border, text, FS_SMALL, font_type);
161 cursor_letter = gi->text.value[gi->text.cursor_position];
162 cursor_string[0] = '~';
163 cursor_string[1] = (cursor_letter != '\0' ? cursor_letter : ' ');
164 cursor_string[2] = '\0';
166 /* draw cursor, if active */
168 DrawText(gi->x + border + gi->text.cursor_position * font_width,
169 gi->y + border, cursor_string, FS_SMALL, font_type);
173 case GD_TYPE_SCROLLBAR_VERTICAL:
177 int ypos = gi->y + gi->scrollbar.position;
178 int design_full = gi->width;
179 int design_body = design_full - 2 * gi->border.size;
180 int size_full = gi->scrollbar.size;
181 int size_body = size_full - 2 * gi->border.size;
182 int num_steps = size_body / design_body;
183 int step_size_remain = size_body - num_steps * design_body;
185 /* clear scrollbar area */
186 ClearRectangle(backbuffer, gi->x, gi->y, gi->width, gi->height);
188 /* upper part of gadget */
189 BlitBitmap(gd->bitmap, drawto,
191 gi->width, gi->border.size,
194 /* middle part of gadget */
195 for (i=0; i<num_steps; i++)
196 BlitBitmap(gd->bitmap, drawto,
197 gd->x, gd->y + gi->border.size,
198 gi->width, design_body,
199 xpos, ypos + gi->border.size + i * design_body);
201 /* remaining middle part of gadget */
202 if (step_size_remain > 0)
203 BlitBitmap(gd->bitmap, drawto,
204 gd->x, gd->y + gi->border.size,
205 gi->width, step_size_remain,
206 xpos, ypos + gi->border.size + num_steps * design_body);
208 /* lower part of gadget */
209 BlitBitmap(gd->bitmap, drawto,
210 gd->x, gd->y + design_full - gi->border.size,
211 gi->width, gi->border.size,
212 xpos, ypos + size_full - gi->border.size);
216 case GD_TYPE_SCROLLBAR_HORIZONTAL:
219 int xpos = gi->x + gi->scrollbar.position;
221 int design_full = gi->height;
222 int design_body = design_full - 2 * gi->border.size;
223 int size_full = gi->scrollbar.size;
224 int size_body = size_full - 2 * gi->border.size;
225 int num_steps = size_body / design_body;
226 int step_size_remain = size_body - num_steps * design_body;
228 /* clear scrollbar area */
229 ClearRectangle(backbuffer, gi->x, gi->y, gi->width, gi->height);
231 /* left part of gadget */
232 BlitBitmap(gd->bitmap, drawto,
234 gi->border.size, gi->height,
237 /* middle part of gadget */
238 for (i=0; i<num_steps; i++)
239 BlitBitmap(gd->bitmap, drawto,
240 gd->x + gi->border.size, gd->y,
241 design_body, gi->height,
242 xpos + gi->border.size + i * design_body, ypos);
244 /* remaining middle part of gadget */
245 if (step_size_remain > 0)
246 BlitBitmap(gd->bitmap, drawto,
247 gd->x + gi->border.size, gd->y,
248 step_size_remain, gi->height,
249 xpos + gi->border.size + num_steps * design_body, ypos);
251 /* right part of gadget */
252 BlitBitmap(gd->bitmap, drawto,
253 gd->x + design_full - gi->border.size, gd->y,
254 gi->border.size, gi->height,
255 xpos + size_full - gi->border.size, ypos);
264 BlitBitmap(drawto, window,
265 gi->x, gi->y, gi->width, gi->height, gi->x, gi->y);
267 redraw_mask |= (gi->x < gfx.sx + gfx.sxsize ? REDRAW_FIELD :
268 gi->y < gfx.dy + gfx.dysize ? REDRAW_DOOR_1 :
269 gi->y > gfx.vy ? REDRAW_DOOR_2 : REDRAW_DOOR_3);
272 static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
276 while (tag != GDI_END)
281 gi->custom_id = va_arg(ap, int);
284 case GDI_CUSTOM_TYPE_ID:
285 gi->custom_type_id = va_arg(ap, int);
290 int max_textsize = MAX_INFO_TEXTSIZE - 1;
291 char *text = va_arg(ap, char *);
294 strncpy(gi->info_text, text, max_textsize);
298 gi->info_text[max_textsize] = '\0';
303 gi->x = va_arg(ap, int);
307 gi->y = va_arg(ap, int);
311 gi->width = va_arg(ap, int);
315 gi->height = va_arg(ap, int);
319 gi->type = va_arg(ap, unsigned long);
323 gi->state = va_arg(ap, unsigned long);
327 /* take care here: "boolean" is typedef'ed as "unsigned char",
328 which gets promoted to "int" */
329 gi->checked = (boolean)va_arg(ap, int);
333 gi->radio_nr = va_arg(ap, unsigned long);
336 case GDI_NUMBER_VALUE:
337 gi->text.number_value = va_arg(ap, long);
338 sprintf(gi->text.value, "%d", gi->text.number_value);
339 gi->text.cursor_position = strlen(gi->text.value);
343 gi->text.number_min = va_arg(ap, long);
344 if (gi->text.number_value < gi->text.number_min)
346 gi->text.number_value = gi->text.number_min;
347 sprintf(gi->text.value, "%d", gi->text.number_value);
352 gi->text.number_max = va_arg(ap, long);
353 if (gi->text.number_value > gi->text.number_max)
355 gi->text.number_value = gi->text.number_max;
356 sprintf(gi->text.value, "%d", gi->text.number_value);
362 int max_textsize = MAX_GADGET_TEXTSIZE;
365 max_textsize = MIN(gi->text.size, MAX_GADGET_TEXTSIZE - 1);
367 strncpy(gi->text.value, va_arg(ap, char *), max_textsize);
368 gi->text.value[max_textsize] = '\0';
369 gi->text.cursor_position = strlen(gi->text.value);
375 int tag_value = va_arg(ap, int);
376 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE - 1);
378 gi->text.size = max_textsize;
379 gi->text.value[max_textsize] = '\0';
384 gi->text.font_type = va_arg(ap, int);
387 case GDI_DESIGN_UNPRESSED:
388 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
389 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
390 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
393 case GDI_DESIGN_PRESSED:
394 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
395 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
396 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
399 case GDI_ALT_DESIGN_UNPRESSED:
400 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
401 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
402 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
405 case GDI_ALT_DESIGN_PRESSED:
406 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
407 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
408 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
411 case GDI_BORDER_SIZE:
412 gi->border.size = va_arg(ap, int);
415 case GDI_TEXTINPUT_DESIGN_WIDTH:
416 gi->border.width = va_arg(ap, int);
419 case GDI_DECORATION_DESIGN:
420 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
421 gi->deco.design.x = va_arg(ap, int);
422 gi->deco.design.y = va_arg(ap, int);
425 case GDI_DECORATION_POSITION:
426 gi->deco.x = va_arg(ap, int);
427 gi->deco.y = va_arg(ap, int);
430 case GDI_DECORATION_SIZE:
431 gi->deco.width = va_arg(ap, int);
432 gi->deco.height = va_arg(ap, int);
435 case GDI_DECORATION_SHIFTING:
436 gi->deco.xshift = va_arg(ap, int);
437 gi->deco.yshift = va_arg(ap, int);
441 gi->event_mask = va_arg(ap, unsigned long);
445 gi->drawing.area_xsize = va_arg(ap, int);
446 gi->drawing.area_ysize = va_arg(ap, int);
448 /* determine dependent values for drawing area gadget, if needed */
449 if (gi->width == 0 && gi->height == 0 &&
450 gi->drawing.item_xsize !=0 && gi->drawing.item_ysize !=0)
452 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
453 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
455 else if (gi->drawing.item_xsize == 0 && gi->drawing.item_ysize == 0 &&
456 gi->width != 0 && gi->height != 0)
458 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
459 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
464 gi->drawing.item_xsize = va_arg(ap, int);
465 gi->drawing.item_ysize = va_arg(ap, int);
467 /* determine dependent values for drawing area gadget, if needed */
468 if (gi->width == 0 && gi->height == 0 &&
469 gi->drawing.area_xsize !=0 && gi->drawing.area_ysize !=0)
471 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
472 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
474 else if (gi->drawing.area_xsize == 0 && gi->drawing.area_ysize == 0 &&
475 gi->width != 0 && gi->height != 0)
477 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
478 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
482 case GDI_SCROLLBAR_ITEMS_MAX:
483 gi->scrollbar.items_max = va_arg(ap, int);
486 case GDI_SCROLLBAR_ITEMS_VISIBLE:
487 gi->scrollbar.items_visible = va_arg(ap, int);
490 case GDI_SCROLLBAR_ITEM_POSITION:
491 gi->scrollbar.item_position = va_arg(ap, int);
494 case GDI_CALLBACK_INFO:
495 gi->callback_info = va_arg(ap, gadget_function);
498 case GDI_CALLBACK_ACTION:
499 gi->callback_action = va_arg(ap, gadget_function);
503 Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
506 tag = va_arg(ap, int); /* read next tag */
509 /* check if gadget complete */
510 if (gi->type != GD_TYPE_DRAWING_AREA &&
511 (!gi->design[GD_BUTTON_UNPRESSED].bitmap ||
512 !gi->design[GD_BUTTON_PRESSED].bitmap))
513 Error(ERR_EXIT, "gadget incomplete (missing Bitmap)");
515 /* adjust gadget values in relation to other gadget values */
517 if (gi->type & GD_TYPE_TEXTINPUT)
519 int font_width = getFontWidth(FS_SMALL, gi->text.font_type);
520 int font_height = getFontHeight(FS_SMALL, gi->text.font_type);
522 gi->width = 2 * gi->border.size + (gi->text.size + 1) * font_width;
523 gi->height = 2 * gi->border.size + font_height;
526 if (gi->type & GD_TYPE_TEXTINPUT_NUMERIC)
528 struct GadgetTextInput *text = &gi->text;
529 int value = text->number_value;
531 text->number_value = (value < text->number_min ? text->number_min :
532 value > text->number_max ? text->number_max :
535 sprintf(text->value, "%d", text->number_value);
538 if (gi->type & GD_TYPE_SCROLLBAR)
540 struct GadgetScrollbar *gs = &gi->scrollbar;
542 if (gi->width == 0 || gi->height == 0 ||
543 gs->items_max == 0 || gs->items_visible == 0)
544 Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
546 /* calculate internal scrollbar values */
547 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
548 gi->height : gi->width);
549 gs->size = gs->size_max * gs->items_visible / gs->items_max;
550 gs->position = gs->size_max * gs->item_position / gs->items_max;
551 gs->position_max = gs->size_max - gs->size;
552 gs->correction = gs->size_max / gs->items_max / 2;
554 /* finetuning for maximal right/bottom position */
555 if (gs->item_position == gs->items_max - gs->items_visible)
556 gs->position = gs->position_max;
560 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
564 va_start(ap, first_tag);
565 HandleGadgetTags(gi, first_tag, ap);
571 void RedrawGadget(struct GadgetInfo *gi)
574 DrawGadget(gi, gi->state, DG_DIRECT);
577 struct GadgetInfo *CreateGadget(int first_tag, ...)
579 struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
582 /* always start with reliable default values */
583 new_gadget->id = getNewGadgetID();
584 new_gadget->callback_info = default_callback_info;
585 new_gadget->callback_action = default_callback_action;
586 new_gadget->next = NULL;
588 va_start(ap, first_tag);
589 HandleGadgetTags(new_gadget, first_tag, ap);
592 /* insert new gadget into global gadget list */
593 if (gadget_list_last_entry)
595 gadget_list_last_entry->next = new_gadget;
596 gadget_list_last_entry = gadget_list_last_entry->next;
599 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
604 void FreeGadget(struct GadgetInfo *gi)
606 struct GadgetInfo *gi_previous = gadget_list_first_entry;
608 while (gi_previous && gi_previous->next != gi)
609 gi_previous = gi_previous->next;
611 if (gi == gadget_list_first_entry)
612 gadget_list_first_entry = gi->next;
614 if (gi == gadget_list_last_entry)
615 gadget_list_last_entry = gi_previous;
618 gi_previous->next = gi->next;
623 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
625 if (gi->type != GD_TYPE_TEXTINPUT_NUMERIC)
628 gi->text.number_value = atoi(gi->text.value);
630 if (gi->text.number_value < gi->text.number_min)
631 gi->text.number_value = gi->text.number_min;
632 if (gi->text.number_value > gi->text.number_max)
633 gi->text.number_value = gi->text.number_max;
635 sprintf(gi->text.value, "%d", gi->text.number_value);
637 if (gi->text.cursor_position < 0)
638 gi->text.cursor_position = 0;
639 else if (gi->text.cursor_position > strlen(gi->text.value))
640 gi->text.cursor_position = strlen(gi->text.value);
643 /* global pointer to gadget actually in use (when mouse button pressed) */
644 static struct GadgetInfo *last_gi = NULL;
646 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
648 if (gi == NULL || gi->mapped)
654 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
657 void MapGadget(struct GadgetInfo *gi)
659 MapGadgetExt(gi, TRUE);
662 void UnmapGadget(struct GadgetInfo *gi)
664 if (gi == NULL || !gi->mapped)
673 #define MAX_NUM_GADGETS 1024
674 #define MULTIMAP_UNMAP (1 << 0)
675 #define MULTIMAP_REMAP (1 << 1)
676 #define MULTIMAP_REDRAW (1 << 2)
677 #define MULTIMAP_PLAYFIELD (1 << 3)
678 #define MULTIMAP_DOOR_1 (1 << 4)
679 #define MULTIMAP_DOOR_2 (1 << 5)
680 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
684 static void MultiMapGadgets(int mode)
686 struct GadgetInfo *gi = gadget_list_first_entry;
687 static boolean map_state[MAX_NUM_GADGETS];
692 if ((mode & MULTIMAP_PLAYFIELD &&
693 gi->x < gfx.sx + gfx.sxsize) ||
694 (mode & MULTIMAP_DOOR_1 &&
695 gi->x >= gfx.dx && gi->y < gfx.dy + gfx.dysize) ||
696 (mode & MULTIMAP_DOOR_2 &&
697 gi->x >= gfx.dx && gi->y > gfx.dy + gfx.dysize) ||
698 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
700 if (mode & MULTIMAP_UNMAP)
702 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
707 if (map_state[map_count++ % MAX_NUM_GADGETS])
708 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
716 void UnmapAllGadgets()
718 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
721 void RemapAllGadgets()
723 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
726 boolean anyTextGadgetActive()
728 return (last_gi && last_gi->type & GD_TYPE_TEXTINPUT && last_gi->mapped);
731 void ClickOnGadget(struct GadgetInfo *gi, int button)
733 /* simulate releasing mouse button over last gadget, if still pressed */
735 HandleGadgets(-1, -1, 0);
737 /* simulate pressing mouse button over specified gadget */
738 HandleGadgets(gi->x, gi->y, button);
740 /* simulate releasing mouse button over specified gadget */
741 HandleGadgets(gi->x, gi->y, 0);
744 void HandleGadgets(int mx, int my, int button)
746 static struct GadgetInfo *last_info_gi = NULL;
747 static unsigned long pressed_delay = 0;
748 static int last_button = 0;
749 static int last_mx = 0, last_my = 0;
750 int scrollbar_mouse_pos = 0;
751 struct GadgetInfo *new_gi, *gi;
753 boolean release_event;
754 boolean mouse_moving;
755 boolean gadget_pressed;
756 boolean gadget_pressed_repeated;
757 boolean gadget_moving;
758 boolean gadget_moving_inside;
759 boolean gadget_moving_off_borders;
760 boolean gadget_released;
761 boolean gadget_released_inside;
762 boolean gadget_released_off_borders;
763 boolean changed_position = FALSE;
765 /* check if there are any gadgets defined */
766 if (gadget_list_first_entry == NULL)
769 /* check which gadget is under the mouse pointer */
770 new_gi = getGadgetInfoFromMousePosition(mx, my);
772 /* check if button state has changed since last invocation */
773 press_event = (button != 0 && last_button == 0);
774 release_event = (button == 0 && last_button != 0);
775 last_button = button;
777 /* check if mouse has been moved since last invocation */
778 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
782 /* special treatment for text and number input gadgets */
783 if (anyTextGadgetActive() && button != 0 && !motion_status)
785 struct GadgetInfo *gi = last_gi;
787 if (new_gi == last_gi)
789 /* if mouse button pressed inside activated text gadget, set cursor */
790 gi->text.cursor_position =
791 (mx - gi->x - gi->border.size) /
792 getFontWidth(FS_SMALL, gi->text.font_type);
794 if (gi->text.cursor_position < 0)
795 gi->text.cursor_position = 0;
796 else if (gi->text.cursor_position > strlen(gi->text.value))
797 gi->text.cursor_position = strlen(gi->text.value);
799 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
803 /* if mouse button pressed outside text input gadget, deactivate it */
804 CheckRangeOfNumericInputGadget(gi);
805 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
807 gi->event.type = GD_EVENT_TEXT_LEAVING;
809 if (gi->event_mask & GD_EVENT_TEXT_LEAVING)
810 gi->callback_action(gi);
817 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
818 gadget_pressed_repeated =
819 (button != 0 && last_gi != NULL && new_gi == last_gi);
821 gadget_released = (release_event && last_gi != NULL);
822 gadget_released_inside = (gadget_released && new_gi == last_gi);
823 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
825 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
826 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
827 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
829 /* if new gadget pressed, store this gadget */
833 /* 'gi' is actually handled gadget */
836 /* if gadget is scrollbar, choose mouse position value */
837 if (gi && gi->type & GD_TYPE_SCROLLBAR)
838 scrollbar_mouse_pos =
839 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
841 /* if mouse button released, no gadget needs to be handled anymore */
842 if (button == 0 && last_gi && !(last_gi->type & GD_TYPE_TEXTINPUT))
845 /* modify event position values even if no gadget is pressed */
846 if (button == 0 && !release_event)
851 int last_x = gi->event.x;
852 int last_y = gi->event.y;
854 gi->event.x = mx - gi->x;
855 gi->event.y = my - gi->y;
857 if (gi->type == GD_TYPE_DRAWING_AREA)
859 gi->event.x /= gi->drawing.item_xsize;
860 gi->event.y /= gi->drawing.item_ysize;
862 if (last_x != gi->event.x || last_y != gi->event.y)
863 changed_position = TRUE;
867 /* handle gadget popup info text */
868 if (last_info_gi != new_gi ||
869 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
871 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
873 new_gi->event.type = GD_EVENT_INFO_ENTERING;
874 new_gi->callback_info(new_gi);
876 else if (last_info_gi != NULL)
878 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
879 last_info_gi->callback_info(last_info_gi);
882 default_callback_info(NULL);
884 printf("It seems that we are leaving gadget [%s]!\n",
885 (last_info_gi != NULL &&
886 last_info_gi->info_text != NULL ?
887 last_info_gi->info_text : ""));
891 last_info_gi = new_gi;
896 if (gi->type == GD_TYPE_CHECK_BUTTON)
898 gi->checked = !gi->checked;
900 else if (gi->type == GD_TYPE_RADIO_BUTTON)
902 struct GadgetInfo *rgi = gadget_list_first_entry;
907 rgi->type == GD_TYPE_RADIO_BUTTON &&
908 rgi->radio_nr == gi->radio_nr &&
911 rgi->checked = FALSE;
912 DrawGadget(rgi, DG_UNPRESSED, DG_DIRECT);
920 else if (gi->type & GD_TYPE_SCROLLBAR)
924 if (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL)
935 if (mpos >= gpos + gi->scrollbar.position &&
936 mpos < gpos + gi->scrollbar.position + gi->scrollbar.size)
939 gi->scrollbar.drag_position =
940 scrollbar_mouse_pos - gi->scrollbar.position;
944 /* click scrollbar one scrollbar length up/left or down/right */
946 struct GadgetScrollbar *gs = &gi->scrollbar;
947 int old_item_position = gs->item_position;
949 changed_position = FALSE;
952 gs->items_visible * (mpos < gpos + gi->scrollbar.position ? -1 : +1);
954 if (gs->item_position < 0)
955 gs->item_position = 0;
956 if (gs->item_position > gs->items_max - gs->items_visible)
957 gs->item_position = gs->items_max - gs->items_visible;
959 if (old_item_position != gs->item_position)
961 gi->event.item_position = gs->item_position;
962 changed_position = TRUE;
965 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
968 gi->state = GD_BUTTON_UNPRESSED;
969 gi->event.type = GD_EVENT_MOVING;
970 gi->event.off_borders = FALSE;
972 if (gi->event_mask & GD_EVENT_MOVING && changed_position)
973 gi->callback_action(gi);
975 /* don't handle this scrollbar anymore while mouse button pressed */
982 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
984 gi->state = GD_BUTTON_PRESSED;
985 gi->event.type = GD_EVENT_PRESSED;
986 gi->event.button = button;
987 gi->event.off_borders = FALSE;
989 /* initialize delay counter */
990 DelayReached(&pressed_delay, 0);
992 if (gi->event_mask & GD_EVENT_PRESSED)
993 gi->callback_action(gi);
996 if (gadget_pressed_repeated)
998 gi->event.type = GD_EVENT_PRESSED;
1000 if (gi->event_mask & GD_EVENT_REPEATED &&
1001 DelayReached(&pressed_delay, GADGET_FRAME_DELAY))
1002 gi->callback_action(gi);
1007 if (gi->type & GD_TYPE_BUTTON)
1009 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
1010 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1011 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
1012 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1015 if (gi->type & GD_TYPE_SCROLLBAR)
1017 struct GadgetScrollbar *gs = &gi->scrollbar;
1018 int old_item_position = gs->item_position;
1020 gs->position = scrollbar_mouse_pos - gs->drag_position;
1022 if (gs->position < 0)
1024 if (gs->position > gs->position_max)
1025 gs->position = gs->position_max;
1028 gs->items_max * (gs->position + gs->correction) / gs->size_max;
1030 if (gs->item_position < 0)
1031 gs->item_position = 0;
1032 if (gs->item_position > gs->items_max - 1)
1033 gs->item_position = gs->items_max - 1;
1035 if (old_item_position != gs->item_position)
1037 gi->event.item_position = gs->item_position;
1038 changed_position = TRUE;
1041 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1044 gi->state = (gadget_moving_inside || gi->type & GD_TYPE_SCROLLBAR ?
1045 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
1046 gi->event.type = GD_EVENT_MOVING;
1047 gi->event.off_borders = gadget_moving_off_borders;
1049 if (gi->event_mask & GD_EVENT_MOVING && changed_position &&
1050 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
1051 gi->callback_action(gi);
1054 if (gadget_released_inside)
1056 if (!(gi->type & GD_TYPE_TEXTINPUT))
1057 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1059 gi->state = GD_BUTTON_UNPRESSED;
1060 gi->event.type = GD_EVENT_RELEASED;
1062 if (gi->event_mask & GD_EVENT_RELEASED)
1063 gi->callback_action(gi);
1066 if (gadget_released_off_borders)
1068 if (gi->type & GD_TYPE_SCROLLBAR)
1069 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1071 gi->event.type = GD_EVENT_RELEASED;
1073 if (gi->event_mask & GD_EVENT_RELEASED &&
1074 gi->event_mask & GD_EVENT_OFF_BORDERS)
1075 gi->callback_action(gi);
1079 void HandleGadgetsKeyInput(Key key)
1081 struct GadgetInfo *gi = last_gi;
1082 char text[MAX_GADGET_TEXTSIZE];
1086 boolean legal_letter;
1088 if (gi == NULL || !(gi->type & GD_TYPE_TEXTINPUT) || !gi->mapped)
1091 text_length = strlen(gi->text.value);
1092 cursor_pos = gi->text.cursor_position;
1093 letter = getCharFromKey(key);
1094 legal_letter = (gi->type == GD_TYPE_TEXTINPUT_NUMERIC ?
1095 letter >= '0' && letter <= '9' :
1098 if (legal_letter && text_length < gi->text.size)
1100 strcpy(text, gi->text.value);
1101 strcpy(&gi->text.value[cursor_pos + 1], &text[cursor_pos]);
1102 gi->text.value[cursor_pos] = letter;
1103 gi->text.cursor_position++;
1104 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1106 else if (key == KSYM_Left && cursor_pos > 0)
1108 gi->text.cursor_position--;
1109 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1111 else if (key == KSYM_Right && cursor_pos < text_length)
1113 gi->text.cursor_position++;
1114 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1116 else if (key == KSYM_BackSpace && cursor_pos > 0)
1118 strcpy(text, gi->text.value);
1119 strcpy(&gi->text.value[cursor_pos - 1], &text[cursor_pos]);
1120 gi->text.cursor_position--;
1121 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1123 else if (key == KSYM_Delete && cursor_pos < text_length)
1125 strcpy(text, gi->text.value);
1126 strcpy(&gi->text.value[cursor_pos], &text[cursor_pos + 1]);
1127 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1129 else if (key == KSYM_Return)
1131 CheckRangeOfNumericInputGadget(gi);
1132 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1134 gi->event.type = GD_EVENT_TEXT_RETURN;
1136 if (gi->event_mask & GD_EVENT_TEXT_RETURN)
1137 gi->callback_action(gi);