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;
292 strncpy(gi->info_text, va_arg(ap, char *), max_textsize);
293 gi->info_text[max_textsize] = '\0';
298 gi->x = va_arg(ap, int);
302 gi->y = va_arg(ap, int);
306 gi->width = va_arg(ap, int);
310 gi->height = va_arg(ap, int);
314 gi->type = va_arg(ap, unsigned long);
318 gi->state = va_arg(ap, unsigned long);
322 /* take care here: "boolean" is typedef'ed as "unsigned char",
323 which gets promoted to "int" */
324 gi->checked = (boolean)va_arg(ap, int);
328 gi->radio_nr = va_arg(ap, unsigned long);
331 case GDI_NUMBER_VALUE:
332 gi->text.number_value = va_arg(ap, long);
333 sprintf(gi->text.value, "%d", gi->text.number_value);
334 gi->text.cursor_position = strlen(gi->text.value);
338 gi->text.number_min = va_arg(ap, long);
339 if (gi->text.number_value < gi->text.number_min)
341 gi->text.number_value = gi->text.number_min;
342 sprintf(gi->text.value, "%d", gi->text.number_value);
347 gi->text.number_max = va_arg(ap, long);
348 if (gi->text.number_value > gi->text.number_max)
350 gi->text.number_value = gi->text.number_max;
351 sprintf(gi->text.value, "%d", gi->text.number_value);
357 int max_textsize = MAX_GADGET_TEXTSIZE;
360 max_textsize = MIN(gi->text.size, MAX_GADGET_TEXTSIZE - 1);
362 strncpy(gi->text.value, va_arg(ap, char *), max_textsize);
363 gi->text.value[max_textsize] = '\0';
364 gi->text.cursor_position = strlen(gi->text.value);
370 int tag_value = va_arg(ap, int);
371 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE - 1);
373 gi->text.size = max_textsize;
374 gi->text.value[max_textsize] = '\0';
379 gi->text.font_type = va_arg(ap, int);
382 case GDI_DESIGN_UNPRESSED:
383 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
384 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
385 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
388 case GDI_DESIGN_PRESSED:
389 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
390 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
391 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
394 case GDI_ALT_DESIGN_UNPRESSED:
395 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
396 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
397 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
400 case GDI_ALT_DESIGN_PRESSED:
401 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
402 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
403 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
406 case GDI_BORDER_SIZE:
407 gi->border.size = va_arg(ap, int);
410 case GDI_TEXTINPUT_DESIGN_WIDTH:
411 gi->border.width = va_arg(ap, int);
414 case GDI_DECORATION_DESIGN:
415 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
416 gi->deco.design.x = va_arg(ap, int);
417 gi->deco.design.y = va_arg(ap, int);
420 case GDI_DECORATION_POSITION:
421 gi->deco.x = va_arg(ap, int);
422 gi->deco.y = va_arg(ap, int);
425 case GDI_DECORATION_SIZE:
426 gi->deco.width = va_arg(ap, int);
427 gi->deco.height = va_arg(ap, int);
430 case GDI_DECORATION_SHIFTING:
431 gi->deco.xshift = va_arg(ap, int);
432 gi->deco.yshift = va_arg(ap, int);
436 gi->event_mask = va_arg(ap, unsigned long);
440 gi->drawing.area_xsize = va_arg(ap, int);
441 gi->drawing.area_ysize = va_arg(ap, int);
443 /* determine dependent values for drawing area gadget, if needed */
444 if (gi->width == 0 && gi->height == 0 &&
445 gi->drawing.item_xsize !=0 && gi->drawing.item_ysize !=0)
447 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
448 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
450 else if (gi->drawing.item_xsize == 0 && gi->drawing.item_ysize == 0 &&
451 gi->width != 0 && gi->height != 0)
453 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
454 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
459 gi->drawing.item_xsize = va_arg(ap, int);
460 gi->drawing.item_ysize = va_arg(ap, int);
462 /* determine dependent values for drawing area gadget, if needed */
463 if (gi->width == 0 && gi->height == 0 &&
464 gi->drawing.area_xsize !=0 && gi->drawing.area_ysize !=0)
466 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
467 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
469 else if (gi->drawing.area_xsize == 0 && gi->drawing.area_ysize == 0 &&
470 gi->width != 0 && gi->height != 0)
472 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
473 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
477 case GDI_SCROLLBAR_ITEMS_MAX:
478 gi->scrollbar.items_max = va_arg(ap, int);
481 case GDI_SCROLLBAR_ITEMS_VISIBLE:
482 gi->scrollbar.items_visible = va_arg(ap, int);
485 case GDI_SCROLLBAR_ITEM_POSITION:
486 gi->scrollbar.item_position = va_arg(ap, int);
489 case GDI_CALLBACK_INFO:
490 gi->callback_info = va_arg(ap, gadget_function);
493 case GDI_CALLBACK_ACTION:
494 gi->callback_action = va_arg(ap, gadget_function);
498 Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
501 tag = va_arg(ap, int); /* read next tag */
504 /* check if gadget complete */
505 if (gi->type != GD_TYPE_DRAWING_AREA &&
506 (!gi->design[GD_BUTTON_UNPRESSED].bitmap ||
507 !gi->design[GD_BUTTON_PRESSED].bitmap))
508 Error(ERR_EXIT, "gadget incomplete (missing Bitmap)");
510 /* adjust gadget values in relation to other gadget values */
512 if (gi->type & GD_TYPE_TEXTINPUT)
514 int font_width = getFontWidth(FS_SMALL, gi->text.font_type);
515 int font_height = getFontHeight(FS_SMALL, gi->text.font_type);
517 gi->width = 2 * gi->border.size + (gi->text.size + 1) * font_width;
518 gi->height = 2 * gi->border.size + font_height;
521 if (gi->type & GD_TYPE_TEXTINPUT_NUMERIC)
523 struct GadgetTextInput *text = &gi->text;
524 int value = text->number_value;
526 text->number_value = (value < text->number_min ? text->number_min :
527 value > text->number_max ? text->number_max :
530 sprintf(text->value, "%d", text->number_value);
533 if (gi->type & GD_TYPE_SCROLLBAR)
535 struct GadgetScrollbar *gs = &gi->scrollbar;
537 if (gi->width == 0 || gi->height == 0 ||
538 gs->items_max == 0 || gs->items_visible == 0)
539 Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
541 /* calculate internal scrollbar values */
542 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
543 gi->height : gi->width);
544 gs->size = gs->size_max * gs->items_visible / gs->items_max;
545 gs->position = gs->size_max * gs->item_position / gs->items_max;
546 gs->position_max = gs->size_max - gs->size;
547 gs->correction = gs->size_max / gs->items_max / 2;
549 /* finetuning for maximal right/bottom position */
550 if (gs->item_position == gs->items_max - gs->items_visible)
551 gs->position = gs->position_max;
555 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
559 va_start(ap, first_tag);
560 HandleGadgetTags(gi, first_tag, ap);
566 void RedrawGadget(struct GadgetInfo *gi)
569 DrawGadget(gi, gi->state, DG_DIRECT);
572 struct GadgetInfo *CreateGadget(int first_tag, ...)
574 struct GadgetInfo *new_gadget = checked_malloc(sizeof(struct GadgetInfo));
577 /* always start with reliable default values */
578 memset(new_gadget, 0, sizeof(struct GadgetInfo)); /* zero all fields */
579 new_gadget->id = getNewGadgetID();
580 new_gadget->callback_info = default_callback_info;
581 new_gadget->callback_action = default_callback_action;
583 va_start(ap, first_tag);
584 HandleGadgetTags(new_gadget, first_tag, ap);
587 /* insert new gadget into global gadget list */
588 if (gadget_list_last_entry)
590 gadget_list_last_entry->next = new_gadget;
591 gadget_list_last_entry = gadget_list_last_entry->next;
594 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
599 void FreeGadget(struct GadgetInfo *gi)
601 struct GadgetInfo *gi_previous = gadget_list_first_entry;
603 while (gi_previous && gi_previous->next != gi)
604 gi_previous = gi_previous->next;
606 if (gi == gadget_list_first_entry)
607 gadget_list_first_entry = gi->next;
609 if (gi == gadget_list_last_entry)
610 gadget_list_last_entry = gi_previous;
612 gi_previous->next = gi->next;
616 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
618 if (gi->type != GD_TYPE_TEXTINPUT_NUMERIC)
621 gi->text.number_value = atoi(gi->text.value);
623 if (gi->text.number_value < gi->text.number_min)
624 gi->text.number_value = gi->text.number_min;
625 if (gi->text.number_value > gi->text.number_max)
626 gi->text.number_value = gi->text.number_max;
628 sprintf(gi->text.value, "%d", gi->text.number_value);
630 if (gi->text.cursor_position < 0)
631 gi->text.cursor_position = 0;
632 else if (gi->text.cursor_position > strlen(gi->text.value))
633 gi->text.cursor_position = strlen(gi->text.value);
636 /* global pointer to gadget actually in use (when mouse button pressed) */
637 static struct GadgetInfo *last_gi = NULL;
639 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
641 if (gi == NULL || gi->mapped)
647 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
650 void MapGadget(struct GadgetInfo *gi)
652 MapGadgetExt(gi, TRUE);
655 void UnmapGadget(struct GadgetInfo *gi)
657 if (gi == NULL || !gi->mapped)
666 #define MAX_NUM_GADGETS 1024
667 #define MULTIMAP_UNMAP (1 << 0)
668 #define MULTIMAP_REMAP (1 << 1)
669 #define MULTIMAP_REDRAW (1 << 2)
670 #define MULTIMAP_PLAYFIELD (1 << 3)
671 #define MULTIMAP_DOOR_1 (1 << 4)
672 #define MULTIMAP_DOOR_2 (1 << 5)
673 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
677 static void MultiMapGadgets(int mode)
679 struct GadgetInfo *gi = gadget_list_first_entry;
680 static boolean map_state[MAX_NUM_GADGETS];
685 if ((mode & MULTIMAP_PLAYFIELD &&
686 gi->x < gfx.sx + gfx.sxsize) ||
687 (mode & MULTIMAP_DOOR_1 &&
688 gi->x >= gfx.dx && gi->y < gfx.dy + gfx.dysize) ||
689 (mode & MULTIMAP_DOOR_2 &&
690 gi->x >= gfx.dx && gi->y > gfx.dy + gfx.dysize) ||
691 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
693 if (mode & MULTIMAP_UNMAP)
695 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
700 if (map_state[map_count++ % MAX_NUM_GADGETS])
701 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
709 void UnmapAllGadgets()
711 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
714 void RemapAllGadgets()
716 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
719 boolean anyTextGadgetActive()
721 return (last_gi && last_gi->type & GD_TYPE_TEXTINPUT && last_gi->mapped);
724 void ClickOnGadget(struct GadgetInfo *gi, int button)
726 /* simulate releasing mouse button over last gadget, if still pressed */
728 HandleGadgets(-1, -1, 0);
730 /* simulate pressing mouse button over specified gadget */
731 HandleGadgets(gi->x, gi->y, button);
733 /* simulate releasing mouse button over specified gadget */
734 HandleGadgets(gi->x, gi->y, 0);
737 void HandleGadgets(int mx, int my, int button)
739 static struct GadgetInfo *last_info_gi = NULL;
740 static unsigned long pressed_delay = 0;
741 static int last_button = 0;
742 static int last_mx = 0, last_my = 0;
743 int scrollbar_mouse_pos = 0;
744 struct GadgetInfo *new_gi, *gi;
746 boolean release_event;
747 boolean mouse_moving;
748 boolean gadget_pressed;
749 boolean gadget_pressed_repeated;
750 boolean gadget_moving;
751 boolean gadget_moving_inside;
752 boolean gadget_moving_off_borders;
753 boolean gadget_released;
754 boolean gadget_released_inside;
755 boolean gadget_released_off_borders;
756 boolean changed_position = FALSE;
758 /* check if there are any gadgets defined */
759 if (gadget_list_first_entry == NULL)
762 /* check which gadget is under the mouse pointer */
763 new_gi = getGadgetInfoFromMousePosition(mx, my);
765 /* check if button state has changed since last invocation */
766 press_event = (button != 0 && last_button == 0);
767 release_event = (button == 0 && last_button != 0);
768 last_button = button;
770 /* check if mouse has been moved since last invocation */
771 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
775 /* special treatment for text and number input gadgets */
776 if (anyTextGadgetActive() && button != 0 && !motion_status)
778 struct GadgetInfo *gi = last_gi;
780 if (new_gi == last_gi)
782 /* if mouse button pressed inside activated text gadget, set cursor */
783 gi->text.cursor_position =
784 (mx - gi->x - gi->border.size) /
785 getFontWidth(FS_SMALL, gi->text.font_type);
787 if (gi->text.cursor_position < 0)
788 gi->text.cursor_position = 0;
789 else if (gi->text.cursor_position > strlen(gi->text.value))
790 gi->text.cursor_position = strlen(gi->text.value);
792 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
796 /* if mouse button pressed outside text input gadget, deactivate it */
797 CheckRangeOfNumericInputGadget(gi);
798 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
800 gi->event.type = GD_EVENT_TEXT_LEAVING;
802 if (gi->event_mask & GD_EVENT_TEXT_LEAVING)
803 gi->callback_action(gi);
810 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
811 gadget_pressed_repeated =
812 (button != 0 && last_gi != NULL && new_gi == last_gi);
814 gadget_released = (release_event && last_gi != NULL);
815 gadget_released_inside = (gadget_released && new_gi == last_gi);
816 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
818 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
819 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
820 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
822 /* if new gadget pressed, store this gadget */
826 /* 'gi' is actually handled gadget */
829 /* if gadget is scrollbar, choose mouse position value */
830 if (gi && gi->type & GD_TYPE_SCROLLBAR)
831 scrollbar_mouse_pos =
832 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
834 /* if mouse button released, no gadget needs to be handled anymore */
835 if (button == 0 && last_gi && !(last_gi->type & GD_TYPE_TEXTINPUT))
838 /* modify event position values even if no gadget is pressed */
839 if (button == 0 && !release_event)
844 int last_x = gi->event.x;
845 int last_y = gi->event.y;
847 gi->event.x = mx - gi->x;
848 gi->event.y = my - gi->y;
850 if (gi->type == GD_TYPE_DRAWING_AREA)
852 gi->event.x /= gi->drawing.item_xsize;
853 gi->event.y /= gi->drawing.item_ysize;
855 if (last_x != gi->event.x || last_y != gi->event.y)
856 changed_position = TRUE;
860 /* handle gadget popup info text */
861 if (last_info_gi != new_gi ||
862 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
864 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
866 new_gi->event.type = GD_EVENT_INFO_ENTERING;
867 new_gi->callback_info(new_gi);
869 else if (last_info_gi != NULL)
871 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
872 last_info_gi->callback_info(last_info_gi);
875 default_callback_info(NULL);
877 printf("It seems that we are leaving gadget [%s]!\n",
878 (last_info_gi != NULL &&
879 last_info_gi->info_text != NULL ?
880 last_info_gi->info_text : ""));
884 last_info_gi = new_gi;
889 if (gi->type == GD_TYPE_CHECK_BUTTON)
891 gi->checked = !gi->checked;
893 else if (gi->type == GD_TYPE_RADIO_BUTTON)
895 struct GadgetInfo *rgi = gadget_list_first_entry;
900 rgi->type == GD_TYPE_RADIO_BUTTON &&
901 rgi->radio_nr == gi->radio_nr &&
904 rgi->checked = FALSE;
905 DrawGadget(rgi, DG_UNPRESSED, DG_DIRECT);
913 else if (gi->type & GD_TYPE_SCROLLBAR)
917 if (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL)
928 if (mpos >= gpos + gi->scrollbar.position &&
929 mpos < gpos + gi->scrollbar.position + gi->scrollbar.size)
932 gi->scrollbar.drag_position =
933 scrollbar_mouse_pos - gi->scrollbar.position;
937 /* click scrollbar one scrollbar length up/left or down/right */
939 struct GadgetScrollbar *gs = &gi->scrollbar;
940 int old_item_position = gs->item_position;
942 changed_position = FALSE;
945 gs->items_visible * (mpos < gpos + gi->scrollbar.position ? -1 : +1);
947 if (gs->item_position < 0)
948 gs->item_position = 0;
949 if (gs->item_position > gs->items_max - gs->items_visible)
950 gs->item_position = gs->items_max - gs->items_visible;
952 if (old_item_position != gs->item_position)
954 gi->event.item_position = gs->item_position;
955 changed_position = TRUE;
958 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
961 gi->state = GD_BUTTON_UNPRESSED;
962 gi->event.type = GD_EVENT_MOVING;
963 gi->event.off_borders = FALSE;
965 if (gi->event_mask & GD_EVENT_MOVING && changed_position)
966 gi->callback_action(gi);
968 /* don't handle this scrollbar anymore while mouse button pressed */
975 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
977 gi->state = GD_BUTTON_PRESSED;
978 gi->event.type = GD_EVENT_PRESSED;
979 gi->event.button = button;
980 gi->event.off_borders = FALSE;
982 /* initialize delay counter */
983 DelayReached(&pressed_delay, 0);
985 if (gi->event_mask & GD_EVENT_PRESSED)
986 gi->callback_action(gi);
989 if (gadget_pressed_repeated)
991 gi->event.type = GD_EVENT_PRESSED;
993 if (gi->event_mask & GD_EVENT_REPEATED &&
994 DelayReached(&pressed_delay, GADGET_FRAME_DELAY))
995 gi->callback_action(gi);
1000 if (gi->type & GD_TYPE_BUTTON)
1002 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
1003 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1004 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
1005 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1008 if (gi->type & GD_TYPE_SCROLLBAR)
1010 struct GadgetScrollbar *gs = &gi->scrollbar;
1011 int old_item_position = gs->item_position;
1013 gs->position = scrollbar_mouse_pos - gs->drag_position;
1015 if (gs->position < 0)
1017 if (gs->position > gs->position_max)
1018 gs->position = gs->position_max;
1021 gs->items_max * (gs->position + gs->correction) / gs->size_max;
1023 if (gs->item_position < 0)
1024 gs->item_position = 0;
1025 if (gs->item_position > gs->items_max - 1)
1026 gs->item_position = gs->items_max - 1;
1028 if (old_item_position != gs->item_position)
1030 gi->event.item_position = gs->item_position;
1031 changed_position = TRUE;
1034 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1037 gi->state = (gadget_moving_inside || gi->type & GD_TYPE_SCROLLBAR ?
1038 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
1039 gi->event.type = GD_EVENT_MOVING;
1040 gi->event.off_borders = gadget_moving_off_borders;
1042 if (gi->event_mask & GD_EVENT_MOVING && changed_position &&
1043 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
1044 gi->callback_action(gi);
1047 if (gadget_released_inside)
1049 if (!(gi->type & GD_TYPE_TEXTINPUT))
1050 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1052 gi->state = GD_BUTTON_UNPRESSED;
1053 gi->event.type = GD_EVENT_RELEASED;
1055 if (gi->event_mask & GD_EVENT_RELEASED)
1056 gi->callback_action(gi);
1059 if (gadget_released_off_borders)
1061 if (gi->type & GD_TYPE_SCROLLBAR)
1062 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1064 gi->event.type = GD_EVENT_RELEASED;
1066 if (gi->event_mask & GD_EVENT_RELEASED &&
1067 gi->event_mask & GD_EVENT_OFF_BORDERS)
1068 gi->callback_action(gi);
1072 void HandleGadgetsKeyInput(Key key)
1074 struct GadgetInfo *gi = last_gi;
1075 char text[MAX_GADGET_TEXTSIZE];
1079 boolean legal_letter;
1081 if (gi == NULL || !(gi->type & GD_TYPE_TEXTINPUT) || !gi->mapped)
1084 text_length = strlen(gi->text.value);
1085 cursor_pos = gi->text.cursor_position;
1086 letter = getCharFromKey(key);
1087 legal_letter = (gi->type == GD_TYPE_TEXTINPUT_NUMERIC ?
1088 letter >= '0' && letter <= '9' :
1091 if (legal_letter && text_length < gi->text.size)
1093 strcpy(text, gi->text.value);
1094 strcpy(&gi->text.value[cursor_pos + 1], &text[cursor_pos]);
1095 gi->text.value[cursor_pos] = letter;
1096 gi->text.cursor_position++;
1097 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1099 else if (key == KSYM_Left && cursor_pos > 0)
1101 gi->text.cursor_position--;
1102 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1104 else if (key == KSYM_Right && cursor_pos < text_length)
1106 gi->text.cursor_position++;
1107 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1109 else if (key == KSYM_BackSpace && cursor_pos > 0)
1111 strcpy(text, gi->text.value);
1112 strcpy(&gi->text.value[cursor_pos - 1], &text[cursor_pos]);
1113 gi->text.cursor_position--;
1114 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1116 else if (key == KSYM_Delete && cursor_pos < text_length)
1118 strcpy(text, gi->text.value);
1119 strcpy(&gi->text.value[cursor_pos], &text[cursor_pos + 1]);
1120 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1122 else if (key == KSYM_Return)
1124 CheckRangeOfNumericInputGadget(gi);
1125 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1127 gi->event.type = GD_EVENT_TEXT_RETURN;
1129 if (gi->event_mask & GD_EVENT_TEXT_RETURN)
1130 gi->callback_action(gi);