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(font_type);
140 int border = gi->border.size;
142 strcpy(text, gi->text.value);
145 /* left part of gadget */
146 BlitBitmapOnBackground(gd->bitmap, drawto,
147 gd->x, gd->y, border, gi->height, gi->x, gi->y);
149 /* middle part of gadget */
150 for (i=0; i<=gi->text.size; i++)
151 BlitBitmapOnBackground(gd->bitmap, drawto,
152 gd->x + border, gd->y, font_width, gi->height,
153 gi->x + border + i * font_width, gi->y);
155 /* right part of gadget */
156 BlitBitmapOnBackground(gd->bitmap, drawto,
157 gd->x + gi->border.width -border, gd->y, border,
158 gi->height, gi->x + gi->width - border, gi->y);
160 /* gadget text value */
162 gi->x + border, gi->y + border, text,
163 font_type, FONT_MASKED);
165 cursor_letter = gi->text.value[gi->text.cursor_position];
166 cursor_string[0] = '~';
167 cursor_string[1] = (cursor_letter != '\0' ? cursor_letter : ' ');
168 cursor_string[2] = '\0';
170 /* draw cursor, if active */
173 gi->x + border + gi->text.cursor_position * font_width,
174 gi->y + border, cursor_string,
175 font_type, FONT_MASKED);
179 case GD_TYPE_SCROLLBAR_VERTICAL:
183 int ypos = gi->y + gi->scrollbar.position;
184 int design_full = gi->width;
185 int design_body = design_full - 2 * gi->border.size;
186 int size_full = gi->scrollbar.size;
187 int size_body = size_full - 2 * gi->border.size;
188 int num_steps = size_body / design_body;
189 int step_size_remain = size_body - num_steps * design_body;
191 /* clear scrollbar area */
192 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
193 gi->width, gi->height);
195 /* upper part of gadget */
196 BlitBitmapOnBackground(gd->bitmap, drawto,
198 gi->width, gi->border.size,
201 /* middle part of gadget */
202 for (i=0; i<num_steps; i++)
203 BlitBitmapOnBackground(gd->bitmap, drawto,
204 gd->x, gd->y + gi->border.size,
205 gi->width, design_body,
207 ypos + gi->border.size + i * design_body);
209 /* remaining middle part of gadget */
210 if (step_size_remain > 0)
211 BlitBitmapOnBackground(gd->bitmap, drawto,
212 gd->x, gd->y + gi->border.size,
213 gi->width, step_size_remain,
215 ypos + gi->border.size
216 + num_steps * design_body);
218 /* lower part of gadget */
219 BlitBitmapOnBackground(gd->bitmap, drawto,
220 gd->x, gd->y + design_full - gi->border.size,
221 gi->width, gi->border.size,
222 xpos, ypos + size_full - gi->border.size);
226 case GD_TYPE_SCROLLBAR_HORIZONTAL:
229 int xpos = gi->x + gi->scrollbar.position;
231 int design_full = gi->height;
232 int design_body = design_full - 2 * gi->border.size;
233 int size_full = gi->scrollbar.size;
234 int size_body = size_full - 2 * gi->border.size;
235 int num_steps = size_body / design_body;
236 int step_size_remain = size_body - num_steps * design_body;
238 /* clear scrollbar area */
239 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
240 gi->width, gi->height);
242 /* left part of gadget */
243 BlitBitmapOnBackground(gd->bitmap, drawto,
245 gi->border.size, gi->height,
248 /* middle part of gadget */
249 for (i=0; i<num_steps; i++)
250 BlitBitmapOnBackground(gd->bitmap, drawto,
251 gd->x + gi->border.size, gd->y,
252 design_body, gi->height,
253 xpos + gi->border.size + i * design_body,
256 /* remaining middle part of gadget */
257 if (step_size_remain > 0)
258 BlitBitmapOnBackground(gd->bitmap, drawto,
259 gd->x + gi->border.size, gd->y,
260 step_size_remain, gi->height,
261 xpos + gi->border.size
262 + num_steps * design_body,
265 /* right part of gadget */
266 BlitBitmapOnBackground(gd->bitmap, drawto,
267 gd->x + design_full - gi->border.size, gd->y,
268 gi->border.size, gi->height,
269 xpos + size_full - gi->border.size, ypos);
278 BlitBitmap(drawto, window,
279 gi->x, gi->y, gi->width, gi->height, gi->x, gi->y);
281 redraw_mask |= (gi->x < gfx.sx + gfx.sxsize ? REDRAW_FIELD :
282 gi->y < gfx.dy + gfx.dysize ? REDRAW_DOOR_1 :
283 gi->y > gfx.vy ? REDRAW_DOOR_2 : REDRAW_DOOR_3);
286 static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
290 while (tag != GDI_END)
295 gi->custom_id = va_arg(ap, int);
298 case GDI_CUSTOM_TYPE_ID:
299 gi->custom_type_id = va_arg(ap, int);
304 int max_textsize = MAX_INFO_TEXTSIZE - 1;
305 char *text = va_arg(ap, char *);
308 strncpy(gi->info_text, text, max_textsize);
312 gi->info_text[max_textsize] = '\0';
317 gi->x = va_arg(ap, int);
321 gi->y = va_arg(ap, int);
325 gi->width = va_arg(ap, int);
329 gi->height = va_arg(ap, int);
333 gi->type = va_arg(ap, unsigned long);
337 gi->state = va_arg(ap, unsigned long);
341 /* take care here: "boolean" is typedef'ed as "unsigned char",
342 which gets promoted to "int" */
343 gi->checked = (boolean)va_arg(ap, int);
347 gi->radio_nr = va_arg(ap, unsigned long);
350 case GDI_NUMBER_VALUE:
351 gi->text.number_value = va_arg(ap, long);
352 sprintf(gi->text.value, "%d", gi->text.number_value);
353 gi->text.cursor_position = strlen(gi->text.value);
357 gi->text.number_min = va_arg(ap, long);
358 if (gi->text.number_value < gi->text.number_min)
360 gi->text.number_value = gi->text.number_min;
361 sprintf(gi->text.value, "%d", gi->text.number_value);
366 gi->text.number_max = va_arg(ap, long);
367 if (gi->text.number_value > gi->text.number_max)
369 gi->text.number_value = gi->text.number_max;
370 sprintf(gi->text.value, "%d", gi->text.number_value);
376 int max_textsize = MAX_GADGET_TEXTSIZE;
379 max_textsize = MIN(gi->text.size, MAX_GADGET_TEXTSIZE - 1);
381 strncpy(gi->text.value, va_arg(ap, char *), max_textsize);
382 gi->text.value[max_textsize] = '\0';
383 gi->text.cursor_position = strlen(gi->text.value);
389 int tag_value = va_arg(ap, int);
390 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE - 1);
392 gi->text.size = max_textsize;
393 gi->text.value[max_textsize] = '\0';
398 gi->text.font_type = va_arg(ap, int);
401 case GDI_DESIGN_UNPRESSED:
402 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
403 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
404 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
407 case GDI_DESIGN_PRESSED:
408 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
409 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
410 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
413 case GDI_ALT_DESIGN_UNPRESSED:
414 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
415 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
416 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
419 case GDI_ALT_DESIGN_PRESSED:
420 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
421 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
422 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
425 case GDI_BORDER_SIZE:
426 gi->border.size = va_arg(ap, int);
429 case GDI_TEXTINPUT_DESIGN_WIDTH:
430 gi->border.width = va_arg(ap, int);
433 case GDI_DECORATION_DESIGN:
434 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
435 gi->deco.design.x = va_arg(ap, int);
436 gi->deco.design.y = va_arg(ap, int);
439 case GDI_DECORATION_POSITION:
440 gi->deco.x = va_arg(ap, int);
441 gi->deco.y = va_arg(ap, int);
444 case GDI_DECORATION_SIZE:
445 gi->deco.width = va_arg(ap, int);
446 gi->deco.height = va_arg(ap, int);
449 case GDI_DECORATION_SHIFTING:
450 gi->deco.xshift = va_arg(ap, int);
451 gi->deco.yshift = va_arg(ap, int);
455 gi->event_mask = va_arg(ap, unsigned long);
459 gi->drawing.area_xsize = va_arg(ap, int);
460 gi->drawing.area_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.item_xsize !=0 && gi->drawing.item_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.item_xsize == 0 && gi->drawing.item_ysize == 0 &&
470 gi->width != 0 && gi->height != 0)
472 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
473 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
478 gi->drawing.item_xsize = va_arg(ap, int);
479 gi->drawing.item_ysize = va_arg(ap, int);
481 /* determine dependent values for drawing area gadget, if needed */
482 if (gi->width == 0 && gi->height == 0 &&
483 gi->drawing.area_xsize !=0 && gi->drawing.area_ysize !=0)
485 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
486 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
488 else if (gi->drawing.area_xsize == 0 && gi->drawing.area_ysize == 0 &&
489 gi->width != 0 && gi->height != 0)
491 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
492 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
496 case GDI_SCROLLBAR_ITEMS_MAX:
497 gi->scrollbar.items_max = va_arg(ap, int);
500 case GDI_SCROLLBAR_ITEMS_VISIBLE:
501 gi->scrollbar.items_visible = va_arg(ap, int);
504 case GDI_SCROLLBAR_ITEM_POSITION:
505 gi->scrollbar.item_position = va_arg(ap, int);
508 case GDI_CALLBACK_INFO:
509 gi->callback_info = va_arg(ap, gadget_function);
512 case GDI_CALLBACK_ACTION:
513 gi->callback_action = va_arg(ap, gadget_function);
517 Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
520 tag = va_arg(ap, int); /* read next tag */
523 /* check if gadget complete */
524 if (gi->type != GD_TYPE_DRAWING_AREA &&
525 (!gi->design[GD_BUTTON_UNPRESSED].bitmap ||
526 !gi->design[GD_BUTTON_PRESSED].bitmap))
527 Error(ERR_EXIT, "gadget incomplete (missing Bitmap)");
529 /* adjust gadget values in relation to other gadget values */
531 if (gi->type & GD_TYPE_TEXTINPUT)
533 int font_width = getFontWidth(gi->text.font_type);
534 int font_height = getFontHeight(gi->text.font_type);
536 gi->width = 2 * gi->border.size + (gi->text.size + 1) * font_width;
537 gi->height = 2 * gi->border.size + font_height;
540 if (gi->type & GD_TYPE_TEXTINPUT_NUMERIC)
542 struct GadgetTextInput *text = &gi->text;
543 int value = text->number_value;
545 text->number_value = (value < text->number_min ? text->number_min :
546 value > text->number_max ? text->number_max :
549 sprintf(text->value, "%d", text->number_value);
552 if (gi->type & GD_TYPE_SCROLLBAR)
554 struct GadgetScrollbar *gs = &gi->scrollbar;
556 if (gi->width == 0 || gi->height == 0 ||
557 gs->items_max == 0 || gs->items_visible == 0)
558 Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
560 /* calculate internal scrollbar values */
561 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
562 gi->height : gi->width);
563 gs->size = gs->size_max * gs->items_visible / gs->items_max;
564 gs->position = gs->size_max * gs->item_position / gs->items_max;
565 gs->position_max = gs->size_max - gs->size;
566 gs->correction = gs->size_max / gs->items_max / 2;
568 /* finetuning for maximal right/bottom position */
569 if (gs->item_position == gs->items_max - gs->items_visible)
570 gs->position = gs->position_max;
574 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
578 va_start(ap, first_tag);
579 HandleGadgetTags(gi, first_tag, ap);
585 void RedrawGadget(struct GadgetInfo *gi)
588 DrawGadget(gi, gi->state, DG_DIRECT);
591 struct GadgetInfo *CreateGadget(int first_tag, ...)
593 struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
596 /* always start with reliable default values */
597 new_gadget->id = getNewGadgetID();
598 new_gadget->callback_info = default_callback_info;
599 new_gadget->callback_action = default_callback_action;
600 new_gadget->next = NULL;
602 va_start(ap, first_tag);
603 HandleGadgetTags(new_gadget, first_tag, ap);
606 /* insert new gadget into global gadget list */
607 if (gadget_list_last_entry)
609 gadget_list_last_entry->next = new_gadget;
610 gadget_list_last_entry = gadget_list_last_entry->next;
613 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
618 void FreeGadget(struct GadgetInfo *gi)
620 struct GadgetInfo *gi_previous = gadget_list_first_entry;
622 while (gi_previous != NULL && gi_previous->next != gi)
623 gi_previous = gi_previous->next;
625 if (gi == gadget_list_first_entry)
626 gadget_list_first_entry = gi->next;
628 if (gi == gadget_list_last_entry)
629 gadget_list_last_entry = gi_previous;
631 if (gi_previous != NULL)
632 gi_previous->next = gi->next;
637 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
639 if (gi->type != GD_TYPE_TEXTINPUT_NUMERIC)
642 gi->text.number_value = atoi(gi->text.value);
644 if (gi->text.number_value < gi->text.number_min)
645 gi->text.number_value = gi->text.number_min;
646 if (gi->text.number_value > gi->text.number_max)
647 gi->text.number_value = gi->text.number_max;
649 sprintf(gi->text.value, "%d", gi->text.number_value);
651 if (gi->text.cursor_position < 0)
652 gi->text.cursor_position = 0;
653 else if (gi->text.cursor_position > strlen(gi->text.value))
654 gi->text.cursor_position = strlen(gi->text.value);
657 /* global pointer to gadget actually in use (when mouse button pressed) */
658 static struct GadgetInfo *last_gi = NULL;
660 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
662 if (gi == NULL || gi->mapped)
668 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
671 void MapGadget(struct GadgetInfo *gi)
673 MapGadgetExt(gi, TRUE);
676 void UnmapGadget(struct GadgetInfo *gi)
678 if (gi == NULL || !gi->mapped)
687 #define MAX_NUM_GADGETS 1024
688 #define MULTIMAP_UNMAP (1 << 0)
689 #define MULTIMAP_REMAP (1 << 1)
690 #define MULTIMAP_REDRAW (1 << 2)
691 #define MULTIMAP_PLAYFIELD (1 << 3)
692 #define MULTIMAP_DOOR_1 (1 << 4)
693 #define MULTIMAP_DOOR_2 (1 << 5)
694 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
698 static void MultiMapGadgets(int mode)
700 struct GadgetInfo *gi = gadget_list_first_entry;
701 static boolean map_state[MAX_NUM_GADGETS];
706 if ((mode & MULTIMAP_PLAYFIELD &&
707 gi->x < gfx.sx + gfx.sxsize) ||
708 (mode & MULTIMAP_DOOR_1 &&
709 gi->x >= gfx.dx && gi->y < gfx.dy + gfx.dysize) ||
710 (mode & MULTIMAP_DOOR_2 &&
711 gi->x >= gfx.dx && gi->y > gfx.dy + gfx.dysize) ||
712 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
714 if (mode & MULTIMAP_UNMAP)
716 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
721 if (map_state[map_count++ % MAX_NUM_GADGETS])
722 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
730 void UnmapAllGadgets()
732 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
735 void RemapAllGadgets()
737 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
740 boolean anyTextGadgetActive()
742 return (last_gi && last_gi->type & GD_TYPE_TEXTINPUT && last_gi->mapped);
745 void ClickOnGadget(struct GadgetInfo *gi, int button)
747 /* simulate releasing mouse button over last gadget, if still pressed */
749 HandleGadgets(-1, -1, 0);
751 /* simulate pressing mouse button over specified gadget */
752 HandleGadgets(gi->x, gi->y, button);
754 /* simulate releasing mouse button over specified gadget */
755 HandleGadgets(gi->x, gi->y, 0);
758 void HandleGadgets(int mx, int my, int button)
760 static struct GadgetInfo *last_info_gi = NULL;
761 static unsigned long pressed_delay = 0;
762 static int last_button = 0;
763 static int last_mx = 0, last_my = 0;
764 int scrollbar_mouse_pos = 0;
765 struct GadgetInfo *new_gi, *gi;
767 boolean release_event;
768 boolean mouse_moving;
769 boolean gadget_pressed;
770 boolean gadget_pressed_repeated;
771 boolean gadget_moving;
772 boolean gadget_moving_inside;
773 boolean gadget_moving_off_borders;
774 boolean gadget_released;
775 boolean gadget_released_inside;
776 boolean gadget_released_off_borders;
777 boolean changed_position = FALSE;
779 /* check if there are any gadgets defined */
780 if (gadget_list_first_entry == NULL)
783 /* check which gadget is under the mouse pointer */
784 new_gi = getGadgetInfoFromMousePosition(mx, my);
786 /* check if button state has changed since last invocation */
787 press_event = (button != 0 && last_button == 0);
788 release_event = (button == 0 && last_button != 0);
789 last_button = button;
791 /* check if mouse has been moved since last invocation */
792 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
796 /* special treatment for text and number input gadgets */
797 if (anyTextGadgetActive() && button != 0 && !motion_status)
799 struct GadgetInfo *gi = last_gi;
801 if (new_gi == last_gi)
803 /* if mouse button pressed inside activated text gadget, set cursor */
804 gi->text.cursor_position =
805 (mx - gi->x - gi->border.size) /
806 getFontWidth(gi->text.font_type);
808 if (gi->text.cursor_position < 0)
809 gi->text.cursor_position = 0;
810 else if (gi->text.cursor_position > strlen(gi->text.value))
811 gi->text.cursor_position = strlen(gi->text.value);
813 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
817 /* if mouse button pressed outside text input gadget, deactivate it */
818 CheckRangeOfNumericInputGadget(gi);
819 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
821 gi->event.type = GD_EVENT_TEXT_LEAVING;
823 if (gi->event_mask & GD_EVENT_TEXT_LEAVING)
824 gi->callback_action(gi);
831 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
832 gadget_pressed_repeated =
833 (button != 0 && last_gi != NULL && new_gi == last_gi);
835 gadget_released = (release_event && last_gi != NULL);
836 gadget_released_inside = (gadget_released && new_gi == last_gi);
837 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
839 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
840 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
841 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
843 /* if new gadget pressed, store this gadget */
847 /* 'gi' is actually handled gadget */
850 /* if gadget is scrollbar, choose mouse position value */
851 if (gi && gi->type & GD_TYPE_SCROLLBAR)
852 scrollbar_mouse_pos =
853 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
855 /* if mouse button released, no gadget needs to be handled anymore */
856 if (button == 0 && last_gi && !(last_gi->type & GD_TYPE_TEXTINPUT))
859 /* modify event position values even if no gadget is pressed */
860 if (button == 0 && !release_event)
865 int last_x = gi->event.x;
866 int last_y = gi->event.y;
868 gi->event.x = mx - gi->x;
869 gi->event.y = my - gi->y;
871 if (gi->type == GD_TYPE_DRAWING_AREA)
873 gi->event.x /= gi->drawing.item_xsize;
874 gi->event.y /= gi->drawing.item_ysize;
876 if (last_x != gi->event.x || last_y != gi->event.y)
877 changed_position = TRUE;
881 /* handle gadget popup info text */
882 if (last_info_gi != new_gi ||
883 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
885 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
887 new_gi->event.type = GD_EVENT_INFO_ENTERING;
888 new_gi->callback_info(new_gi);
890 else if (last_info_gi != NULL)
892 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
893 last_info_gi->callback_info(last_info_gi);
896 default_callback_info(NULL);
898 printf("It seems that we are leaving gadget [%s]!\n",
899 (last_info_gi != NULL &&
900 last_info_gi->info_text != NULL ?
901 last_info_gi->info_text : ""));
905 last_info_gi = new_gi;
910 if (gi->type == GD_TYPE_CHECK_BUTTON)
912 gi->checked = !gi->checked;
914 else if (gi->type == GD_TYPE_RADIO_BUTTON)
916 struct GadgetInfo *rgi = gadget_list_first_entry;
921 rgi->type == GD_TYPE_RADIO_BUTTON &&
922 rgi->radio_nr == gi->radio_nr &&
925 rgi->checked = FALSE;
926 DrawGadget(rgi, DG_UNPRESSED, DG_DIRECT);
934 else if (gi->type & GD_TYPE_SCROLLBAR)
938 if (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL)
949 if (mpos >= gpos + gi->scrollbar.position &&
950 mpos < gpos + gi->scrollbar.position + gi->scrollbar.size)
953 gi->scrollbar.drag_position =
954 scrollbar_mouse_pos - gi->scrollbar.position;
958 /* click scrollbar one scrollbar length up/left or down/right */
960 struct GadgetScrollbar *gs = &gi->scrollbar;
961 int old_item_position = gs->item_position;
963 changed_position = FALSE;
966 gs->items_visible * (mpos < gpos + gi->scrollbar.position ? -1 : +1);
968 if (gs->item_position < 0)
969 gs->item_position = 0;
970 if (gs->item_position > gs->items_max - gs->items_visible)
971 gs->item_position = gs->items_max - gs->items_visible;
973 if (old_item_position != gs->item_position)
975 gi->event.item_position = gs->item_position;
976 changed_position = TRUE;
979 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
982 gi->state = GD_BUTTON_UNPRESSED;
983 gi->event.type = GD_EVENT_MOVING;
984 gi->event.off_borders = FALSE;
986 if (gi->event_mask & GD_EVENT_MOVING && changed_position)
987 gi->callback_action(gi);
989 /* don't handle this scrollbar anymore while mouse button pressed */
996 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
998 gi->state = GD_BUTTON_PRESSED;
999 gi->event.type = GD_EVENT_PRESSED;
1000 gi->event.button = button;
1001 gi->event.off_borders = FALSE;
1003 /* initialize delay counter */
1004 DelayReached(&pressed_delay, 0);
1006 if (gi->event_mask & GD_EVENT_PRESSED)
1007 gi->callback_action(gi);
1010 if (gadget_pressed_repeated)
1012 gi->event.type = GD_EVENT_PRESSED;
1014 if (gi->event_mask & GD_EVENT_REPEATED &&
1015 DelayReached(&pressed_delay, GADGET_FRAME_DELAY))
1016 gi->callback_action(gi);
1021 if (gi->type & GD_TYPE_BUTTON)
1023 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
1024 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1025 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
1026 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1029 if (gi->type & GD_TYPE_SCROLLBAR)
1031 struct GadgetScrollbar *gs = &gi->scrollbar;
1032 int old_item_position = gs->item_position;
1034 gs->position = scrollbar_mouse_pos - gs->drag_position;
1036 if (gs->position < 0)
1038 if (gs->position > gs->position_max)
1039 gs->position = gs->position_max;
1042 gs->items_max * (gs->position + gs->correction) / gs->size_max;
1044 if (gs->item_position < 0)
1045 gs->item_position = 0;
1046 if (gs->item_position > gs->items_max - 1)
1047 gs->item_position = gs->items_max - 1;
1049 if (old_item_position != gs->item_position)
1051 gi->event.item_position = gs->item_position;
1052 changed_position = TRUE;
1055 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1058 gi->state = (gadget_moving_inside || gi->type & GD_TYPE_SCROLLBAR ?
1059 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
1060 gi->event.type = GD_EVENT_MOVING;
1061 gi->event.off_borders = gadget_moving_off_borders;
1063 if (gi->event_mask & GD_EVENT_MOVING && changed_position &&
1064 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
1065 gi->callback_action(gi);
1068 if (gadget_released_inside)
1070 if (!(gi->type & GD_TYPE_TEXTINPUT))
1071 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1073 gi->state = GD_BUTTON_UNPRESSED;
1074 gi->event.type = GD_EVENT_RELEASED;
1076 if (gi->event_mask & GD_EVENT_RELEASED)
1077 gi->callback_action(gi);
1080 if (gadget_released_off_borders)
1082 if (gi->type & GD_TYPE_SCROLLBAR)
1083 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1085 gi->event.type = GD_EVENT_RELEASED;
1087 if (gi->event_mask & GD_EVENT_RELEASED &&
1088 gi->event_mask & GD_EVENT_OFF_BORDERS)
1089 gi->callback_action(gi);
1093 void HandleGadgetsKeyInput(Key key)
1095 struct GadgetInfo *gi = last_gi;
1096 char text[MAX_GADGET_TEXTSIZE];
1100 boolean legal_letter;
1102 if (gi == NULL || !(gi->type & GD_TYPE_TEXTINPUT) || !gi->mapped)
1105 text_length = strlen(gi->text.value);
1106 cursor_pos = gi->text.cursor_position;
1107 letter = getCharFromKey(key);
1108 legal_letter = (gi->type == GD_TYPE_TEXTINPUT_NUMERIC ?
1109 letter >= '0' && letter <= '9' :
1112 if (legal_letter && text_length < gi->text.size)
1114 strcpy(text, gi->text.value);
1115 strcpy(&gi->text.value[cursor_pos + 1], &text[cursor_pos]);
1116 gi->text.value[cursor_pos] = letter;
1117 gi->text.cursor_position++;
1118 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1120 else if (key == KSYM_Left && cursor_pos > 0)
1122 gi->text.cursor_position--;
1123 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1125 else if (key == KSYM_Right && cursor_pos < text_length)
1127 gi->text.cursor_position++;
1128 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1130 else if (key == KSYM_BackSpace && cursor_pos > 0)
1132 strcpy(text, gi->text.value);
1133 strcpy(&gi->text.value[cursor_pos - 1], &text[cursor_pos]);
1134 gi->text.cursor_position--;
1135 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1137 else if (key == KSYM_Delete && cursor_pos < text_length)
1139 strcpy(text, gi->text.value);
1140 strcpy(&gi->text.value[cursor_pos], &text[cursor_pos + 1]);
1141 DrawGadget(gi, DG_PRESSED, DG_DIRECT);
1143 else if (key == KSYM_Return)
1145 CheckRangeOfNumericInputGadget(gi);
1146 DrawGadget(gi, DG_UNPRESSED, DG_DIRECT);
1148 gi->event.type = GD_EVENT_TEXT_RETURN;
1150 if (gi->event_mask & GD_EVENT_TEXT_RETURN)
1151 gi->callback_action(gi);