1 // ============================================================================
2 // Artsoft Retro-Game Library
3 // ----------------------------------------------------------------------------
4 // (c) 1995-2014 by Artsoft Entertainment
7 // http://www.artsoft.org/
8 // ----------------------------------------------------------------------------
10 // ============================================================================
20 /* values for DrawGadget() */
21 #define DG_UNPRESSED 0
27 #define GADGET_DEACTIVATED(g) ((g)->x < 0 || (g)->y < 0)
30 static struct GadgetInfo *gadget_list_first_entry = NULL;
31 static struct GadgetInfo *gadget_list_last_entry = NULL;
32 static struct GadgetInfo *last_info_gi = NULL;
33 static int next_free_gadget_id = 1;
34 static boolean gadget_id_wrapped = FALSE;
36 static void (*PlayGadgetSoundActivating)(void) = NULL;
37 static void (*PlayGadgetSoundSelecting)(void) = NULL;
40 void InitGadgetsSoundCallback(void (*activating_function)(void),
41 void (*selecting_function)(void))
43 PlayGadgetSoundActivating = activating_function;
44 PlayGadgetSoundSelecting = selecting_function;
47 static struct GadgetInfo *getGadgetInfoFromGadgetID(int id)
49 struct GadgetInfo *gi = gadget_list_first_entry;
51 while (gi && gi->id != id)
57 static int getNewGadgetID()
59 int id = next_free_gadget_id++;
61 if (next_free_gadget_id <= 0) /* counter overrun */
63 gadget_id_wrapped = TRUE; /* now we must check each ID */
64 next_free_gadget_id = 0;
67 if (gadget_id_wrapped)
69 next_free_gadget_id++;
70 while (getGadgetInfoFromGadgetID(next_free_gadget_id) != NULL)
71 next_free_gadget_id++;
74 if (next_free_gadget_id <= 0) /* cannot get new gadget id */
75 Error(ERR_EXIT, "too much gadgets -- this should not happen");
80 static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my,
83 struct GadgetInfo *gi;
85 /* first check for scrollbars in case of mouse scroll wheel button events */
86 if (IS_WHEEL_BUTTON(button))
88 /* real horizontal wheel or vertical wheel with modifier key pressed */
89 boolean check_horizontal = (IS_WHEEL_BUTTON_HORIZONTAL(button) ||
90 GetKeyModState() & KMOD_Shift);
92 /* check for the first active scrollbar with matching mouse wheel area */
93 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
95 if (gi->mapped && gi->active &&
96 ((gi->type & GD_TYPE_SCROLLBAR_HORIZONTAL && check_horizontal) ||
97 (gi->type & GD_TYPE_SCROLLBAR_VERTICAL && !check_horizontal)) &&
98 mx >= gi->wheelarea.x && mx < gi->wheelarea.x + gi->wheelarea.width &&
99 my >= gi->wheelarea.y && my < gi->wheelarea.y + gi->wheelarea.height)
103 /* no active scrollbar found -- ignore this scroll wheel button event */
107 /* open selectboxes may overlap other active gadgets, so check them first */
108 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
110 if (gi->mapped && gi->active &&
111 gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
112 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
113 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
117 /* check all other gadgets */
118 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
120 if (gi->mapped && gi->active &&
121 mx >= gi->x && mx < gi->x + gi->width &&
122 my >= gi->y && my < gi->y + gi->height)
129 static void setTextAreaCursorExt(struct GadgetInfo *gi, boolean set_cursor_pos)
131 char *text = gi->textarea.value;
132 int area_xsize = gi->textarea.xsize;
133 int area_ysize = gi->textarea.ysize;
134 int cursor_position = gi->textarea.cursor_position;
135 int cursor_x = gi->textarea.cursor_x;
136 int cursor_y = gi->textarea.cursor_y;
143 if (set_cursor_pos) /* x/y => position */
145 if (y == cursor_y && (x == cursor_x || (x < cursor_x && *text == '\n')))
148 else /* position => x/y */
150 if (pos == cursor_position)
154 if (x + 1 >= area_xsize || *text == '\n')
156 if (y + 1 >= area_ysize)
169 gi->textarea.cursor_x = x;
170 gi->textarea.cursor_y = y;
171 gi->textarea.cursor_x_preferred = x;
172 gi->textarea.cursor_position = pos;
175 static void setTextAreaCursorXY(struct GadgetInfo *gi, int x, int y)
177 gi->textarea.cursor_x = x;
178 gi->textarea.cursor_y = y;
180 setTextAreaCursorExt(gi, TRUE);
183 static void setTextAreaCursorPosition(struct GadgetInfo *gi, int pos)
185 gi->textarea.cursor_position = pos;
187 setTextAreaCursorExt(gi, FALSE);
190 static void default_callback_info(void *ptr)
195 static void default_callback_action(void *ptr)
200 static void DrawGadget(struct GadgetInfo *gi, boolean pressed, boolean direct)
202 struct GadgetDesign *gd;
203 int state = (pressed ? GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
204 boolean redraw_selectbox = FALSE;
209 gd = (!gi->active ? &gi->alt_design[state] :
210 gi->checked ? &gi->alt_design[state] : &gi->design[state]);
214 case GD_TYPE_NORMAL_BUTTON:
215 case GD_TYPE_CHECK_BUTTON:
216 case GD_TYPE_RADIO_BUTTON:
217 BlitBitmapOnBackground(gd->bitmap, drawto,
218 gd->x, gd->y, gi->width, gi->height,
220 if (gi->deco.design.bitmap)
221 BlitBitmap(gi->deco.design.bitmap, drawto,
222 gi->deco.design.x, gi->deco.design.y,
223 gi->deco.width, gi->deco.height,
224 gi->x + gi->deco.x + (pressed ? gi->deco.xshift : 0),
225 gi->y + gi->deco.y + (pressed ? gi->deco.yshift : 0));
228 case GD_TYPE_TEXT_BUTTON:
231 int font_nr = (gi->active ? gi->font_active : gi->font);
232 int font_width = getFontWidth(font_nr);
233 int border_x = gi->border.xsize;
234 int border_y = gi->border.ysize;
235 int text_size = strlen(gi->textbutton.value);
236 int text_start = (gi->width - text_size * font_width) / 2;
238 /* left part of gadget */
239 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
240 border_x, gi->height, gi->x, gi->y);
242 /* middle part of gadget */
243 for (i=0; i < gi->textbutton.size; i++)
244 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
245 font_width, gi->height,
246 gi->x + border_x + i * font_width, gi->y);
248 /* right part of gadget */
249 BlitBitmapOnBackground(gd->bitmap, drawto,
250 gd->x + gi->border.width - border_x, gd->y,
251 border_x, gi->height,
252 gi->x + gi->width - border_x, gi->y);
254 /* gadget text value */
256 gi->x + text_start + (pressed ? gi->deco.xshift : 0),
257 gi->y + border_y + (pressed ? gi->deco.yshift : 0),
258 gi->textbutton.value, font_nr, BLIT_MASKED);
262 case GD_TYPE_TEXT_INPUT_ALPHANUMERIC:
263 case GD_TYPE_TEXT_INPUT_NUMERIC:
267 char cursor_string[2];
268 char text[MAX_GADGET_TEXTSIZE + 1];
269 int font_nr = (pressed ? gi->font_active : gi->font);
270 int font_width = getFontWidth(font_nr);
271 int border_x = gi->border.xsize;
272 int border_y = gi->border.ysize;
274 /* left part of gadget */
275 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
276 border_x, gi->height, gi->x, gi->y);
278 /* middle part of gadget */
279 for (i=0; i < gi->textinput.size + 1; i++)
280 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
281 font_width, gi->height,
282 gi->x + border_x + i * font_width, gi->y);
284 /* right part of gadget */
285 BlitBitmapOnBackground(gd->bitmap, drawto,
286 gd->x + gi->border.width - border_x, gd->y,
287 border_x, gi->height,
288 gi->x + gi->width - border_x, gi->y);
291 strcpy(text, gi->textinput.value);
294 /* gadget text value */
296 gi->x + border_x, gi->y + border_y, text,
297 font_nr, BLIT_MASKED);
299 cursor_letter = gi->textinput.value[gi->textinput.cursor_position];
300 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
301 cursor_string[1] = '\0';
303 /* draw cursor, if active */
307 gi->textinput.cursor_position * font_width,
308 gi->y + border_y, cursor_string,
309 font_nr, BLIT_INVERSE);
313 case GD_TYPE_TEXT_AREA:
317 char cursor_string[2];
318 int font_nr = (pressed ? gi->font_active : gi->font);
319 int font_width = getFontWidth(font_nr);
320 int font_height = getFontHeight(font_nr);
321 int border_x = gi->border.xsize;
322 int border_y = gi->border.ysize;
323 int gd_height = 2 * border_y + font_height;
325 /* top left part of gadget border */
326 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
327 border_x, border_y, gi->x, gi->y);
329 /* top middle part of gadget border */
330 for (i=0; i < gi->textarea.xsize; i++)
331 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
332 font_width, border_y,
333 gi->x + border_x + i * font_width, gi->y);
335 /* top right part of gadget border */
336 BlitBitmapOnBackground(gd->bitmap, drawto,
337 gd->x + gi->border.width - border_x, gd->y,
339 gi->x + gi->width - border_x, gi->y);
341 /* left and right part of gadget border for each row */
342 for (i=0; i < gi->textarea.ysize; i++)
344 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
345 border_x, font_height,
346 gi->x, gi->y + border_y + i * font_height);
347 BlitBitmapOnBackground(gd->bitmap, drawto,
348 gd->x + gi->border.width - border_x,
350 border_x, font_height,
351 gi->x + gi->width - border_x,
352 gi->y + border_y + i * font_height);
355 /* bottom left part of gadget border */
356 BlitBitmapOnBackground(gd->bitmap, drawto,
357 gd->x, gd->y + gd_height - border_y,
359 gi->x, gi->y + gi->height - border_y);
361 /* bottom middle part of gadget border */
362 for (i=0; i < gi->textarea.xsize; i++)
363 BlitBitmapOnBackground(gd->bitmap, drawto,
365 gd->y + gd_height - border_y,
366 font_width, border_y,
367 gi->x + border_x + i * font_width,
368 gi->y + gi->height - border_y);
370 /* bottom right part of gadget border */
371 BlitBitmapOnBackground(gd->bitmap, drawto,
372 gd->x + gi->border.width - border_x,
373 gd->y + gd_height - border_y,
375 gi->x + gi->width - border_x,
376 gi->y + gi->height - border_y);
378 ClearRectangleOnBackground(drawto,
381 gi->width - 2 * border_x,
382 gi->height - 2 * border_y);
384 /* gadget text value */
385 DrawTextBuffer(gi->x + border_x, gi->y + border_y, gi->textarea.value,
386 font_nr, gi->textarea.xsize, -1, gi->textarea.ysize, 0,
387 BLIT_ON_BACKGROUND, FALSE, FALSE, FALSE);
389 cursor_letter = gi->textarea.value[gi->textarea.cursor_position];
390 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
391 cursor_string[1] = '\0';
393 /* draw cursor, if active */
396 gi->x + border_x + gi->textarea.cursor_x * font_width,
397 gi->y + border_y + gi->textarea.cursor_y * font_height,
399 font_nr, BLIT_INVERSE);
403 case GD_TYPE_SELECTBOX:
406 char text[MAX_GADGET_TEXTSIZE + 1];
407 int font_nr = (pressed ? gi->font_active : gi->font);
408 int font_width = getFontWidth(font_nr);
409 int font_height = getFontHeight(font_nr);
410 int border_x = gi->border.xsize;
411 int border_y = gi->border.ysize;
412 int button = gi->border.xsize_selectbutton;
413 int width_inner = gi->border.width - button - 2 * border_x;
414 int box_width = gi->selectbox.width;
415 int box_height = gi->selectbox.height;
417 /* left part of gadget */
418 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
419 border_x, gi->height, gi->x, gi->y);
421 /* middle part of gadget */
422 for (i=0; i < gi->selectbox.size; i++)
423 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
424 font_width, gi->height,
425 gi->x + border_x + i * font_width, gi->y);
427 /* button part of gadget */
428 BlitBitmapOnBackground(gd->bitmap, drawto,
429 gd->x + border_x + width_inner, gd->y,
431 gi->x + gi->width - border_x - button, gi->y);
433 /* right part of gadget */
434 BlitBitmapOnBackground(gd->bitmap, drawto,
435 gd->x + gi->border.width - border_x, gd->y,
436 border_x, gi->height,
437 gi->x + gi->width - border_x, gi->y);
440 strncpy(text, gi->selectbox.options[gi->selectbox.index].text,
442 text[gi->selectbox.size] = '\0';
444 /* gadget text value */
445 DrawTextExt(drawto, gi->x + border_x, gi->y + border_y, text,
446 font_nr, BLIT_MASKED);
450 if (!gi->selectbox.open)
452 gi->selectbox.open = TRUE;
453 gi->selectbox.stay_open = FALSE;
454 gi->selectbox.current_index = gi->selectbox.index;
456 /* save background under selectbox */
457 BlitBitmap(drawto, gfx.field_save_buffer,
458 gi->selectbox.x, gi->selectbox.y,
459 gi->selectbox.width, gi->selectbox.height,
460 gi->selectbox.x, gi->selectbox.y);
463 /* draw open selectbox */
465 /* top left part of gadget border */
466 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
468 gi->selectbox.x, gi->selectbox.y);
470 /* top middle part of gadget border */
471 for (i=0; i < gi->selectbox.size; i++)
472 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
473 font_width, border_y,
474 gi->selectbox.x + border_x + i * font_width,
477 /* top button part of gadget border */
478 BlitBitmapOnBackground(gd->bitmap, drawto,
479 gd->x + border_x + width_inner, gd->y,
481 gi->selectbox.x + box_width -border_x -button,
484 /* top right part of gadget border */
485 BlitBitmapOnBackground(gd->bitmap, drawto,
486 gd->x + gi->border.width - border_x, gd->y,
488 gi->selectbox.x + box_width - border_x,
491 /* left and right part of gadget border for each row */
492 for (i=0; i < gi->selectbox.num_values; i++)
494 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
495 border_x, font_height,
497 gi->selectbox.y + border_y + i*font_height);
498 BlitBitmapOnBackground(gd->bitmap, drawto,
499 gd->x + gi->border.width - border_x,
501 border_x, font_height,
502 gi->selectbox.x + box_width - border_x,
503 gi->selectbox.y + border_y + i*font_height);
506 /* bottom left part of gadget border */
507 BlitBitmapOnBackground(gd->bitmap, drawto,
508 gd->x, gd->y + gi->height - border_y,
511 gi->selectbox.y + box_height - border_y);
513 /* bottom middle part of gadget border */
514 for (i=0; i < gi->selectbox.size; i++)
515 BlitBitmapOnBackground(gd->bitmap, drawto,
517 gd->y + gi->height - border_y,
518 font_width, border_y,
519 gi->selectbox.x + border_x + i * font_width,
520 gi->selectbox.y + box_height - border_y);
522 /* bottom button part of gadget border */
523 BlitBitmapOnBackground(gd->bitmap, drawto,
524 gd->x + border_x + width_inner,
525 gd->y + gi->height - border_y,
527 gi->selectbox.x + box_width -border_x -button,
528 gi->selectbox.y + box_height - border_y);
530 /* bottom right part of gadget border */
531 BlitBitmapOnBackground(gd->bitmap, drawto,
532 gd->x + gi->border.width - border_x,
533 gd->y + gi->height - border_y,
535 gi->selectbox.x + box_width - border_x,
536 gi->selectbox.y + box_height - border_y);
538 ClearRectangleOnBackground(drawto,
539 gi->selectbox.x + border_x,
540 gi->selectbox.y + border_y,
541 gi->selectbox.width - 2 * border_x,
542 gi->selectbox.height - 2 * border_y);
544 /* selectbox text values */
545 for (i=0; i < gi->selectbox.num_values; i++)
547 int mask_mode = BLIT_MASKED;
549 strncpy(text, gi->selectbox.options[i].text, gi->selectbox.size);
550 text[gi->selectbox.size] = '\0';
552 if (i == gi->selectbox.current_index)
554 FillRectangle(drawto,
555 gi->selectbox.x + border_x,
556 gi->selectbox.y + border_y + i * font_height,
557 gi->selectbox.width - 2 * border_x, font_height,
558 gi->selectbox.inverse_color);
560 /* prevent use of cursor graphic by drawing at least two chars */
562 text[gi->selectbox.size] = '\0';
564 mask_mode = BLIT_INVERSE;
568 gi->selectbox.x + border_x,
569 gi->selectbox.y + border_y + i * font_height, text,
573 redraw_selectbox = TRUE;
575 else if (gi->selectbox.open)
577 gi->selectbox.open = FALSE;
579 /* restore background under selectbox */
580 BlitBitmap(gfx.field_save_buffer, drawto,
581 gi->selectbox.x, gi->selectbox.y,
582 gi->selectbox.width, gi->selectbox.height,
583 gi->selectbox.x, gi->selectbox.y);
585 /* redraw closed selectbox */
586 DrawGadget(gi, FALSE, FALSE);
588 redraw_selectbox = TRUE;
593 case GD_TYPE_SCROLLBAR_VERTICAL:
597 int ypos = gi->y + gi->scrollbar.position;
598 int design_full = gi->width;
599 int design_body = design_full - 2 * gi->border.ysize;
600 int size_full = gi->scrollbar.size;
601 int size_body = size_full - 2 * gi->border.ysize;
602 int num_steps = size_body / design_body;
603 int step_size_remain = size_body - num_steps * design_body;
605 /* clear scrollbar area */
606 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
607 gi->width, gi->height);
609 /* upper part of gadget */
610 BlitBitmapOnBackground(gd->bitmap, drawto,
612 gi->width, gi->border.ysize,
615 /* middle part of gadget */
616 for (i=0; i < num_steps; i++)
617 BlitBitmapOnBackground(gd->bitmap, drawto,
618 gd->x, gd->y + gi->border.ysize,
619 gi->width, design_body,
621 ypos + gi->border.ysize + i * design_body);
623 /* remaining middle part of gadget */
624 if (step_size_remain > 0)
625 BlitBitmapOnBackground(gd->bitmap, drawto,
626 gd->x, gd->y + gi->border.ysize,
627 gi->width, step_size_remain,
629 ypos + gi->border.ysize
630 + num_steps * design_body);
632 /* lower part of gadget */
633 BlitBitmapOnBackground(gd->bitmap, drawto,
634 gd->x, gd->y + design_full - gi->border.ysize,
635 gi->width, gi->border.ysize,
636 xpos, ypos + size_full - gi->border.ysize);
640 case GD_TYPE_SCROLLBAR_HORIZONTAL:
643 int xpos = gi->x + gi->scrollbar.position;
645 int design_full = gi->height;
646 int design_body = design_full - 2 * gi->border.xsize;
647 int size_full = gi->scrollbar.size;
648 int size_body = size_full - 2 * gi->border.xsize;
649 int num_steps = size_body / design_body;
650 int step_size_remain = size_body - num_steps * design_body;
652 /* clear scrollbar area */
653 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
654 gi->width, gi->height);
656 /* left part of gadget */
657 BlitBitmapOnBackground(gd->bitmap, drawto,
659 gi->border.xsize, gi->height,
662 /* middle part of gadget */
663 for (i=0; i < num_steps; i++)
664 BlitBitmapOnBackground(gd->bitmap, drawto,
665 gd->x + gi->border.xsize, gd->y,
666 design_body, gi->height,
667 xpos + gi->border.xsize + i * design_body,
670 /* remaining middle part of gadget */
671 if (step_size_remain > 0)
672 BlitBitmapOnBackground(gd->bitmap, drawto,
673 gd->x + gi->border.xsize, gd->y,
674 step_size_remain, gi->height,
675 xpos + gi->border.xsize
676 + num_steps * design_body,
679 /* right part of gadget */
680 BlitBitmapOnBackground(gd->bitmap, drawto,
681 gd->x + design_full - gi->border.xsize, gd->y,
682 gi->border.xsize, gi->height,
683 xpos + size_full - gi->border.xsize, ypos);
693 BlitBitmap(drawto, window,
694 gi->x, gi->y, gi->width, gi->height, gi->x, gi->y);
696 if (gi->type == GD_TYPE_SELECTBOX && redraw_selectbox)
697 BlitBitmap(drawto, window,
698 gi->selectbox.x, gi->selectbox.y,
699 gi->selectbox.width, gi->selectbox.height,
700 gi->selectbox.x, gi->selectbox.y);
707 redraw_mask |= (IN_GFX_FIELD_FULL(x, y) ? REDRAW_FIELD :
708 IN_GFX_DOOR_1(x, y) ? REDRAW_DOOR_1 :
709 IN_GFX_DOOR_2(x, y) ? REDRAW_DOOR_2 :
710 IN_GFX_DOOR_3(x, y) ? REDRAW_DOOR_3 : REDRAW_ALL);
714 static int get_minimal_size_for_numeric_input(int minmax_value)
716 int min_size = 1; /* value needs at least one digit */
719 /* add number of digits needed for absolute value */
720 for (i = 10; i <= ABS(minmax_value); i *= 10)
723 /* if min/max value is negative, add one digit for minus sign */
724 if (minmax_value < 0)
730 static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
737 while (tag != GDI_END)
742 gi->custom_id = va_arg(ap, int);
745 case GDI_CUSTOM_TYPE_ID:
746 gi->custom_type_id = va_arg(ap, int);
751 int max_textsize = MAX_INFO_TEXTSIZE;
752 char *text = va_arg(ap, char *);
755 strncpy(gi->info_text, text, max_textsize);
759 gi->info_text[max_textsize] = '\0';
764 gi->x = va_arg(ap, int);
768 gi->y = va_arg(ap, int);
772 gi->width = va_arg(ap, int);
776 gi->height = va_arg(ap, int);
780 gi->type = va_arg(ap, unsigned int);
784 gi->state = va_arg(ap, unsigned int);
788 gi->active = (boolean)va_arg(ap, int);
791 case GDI_DIRECT_DRAW:
792 gi->direct_draw = (boolean)va_arg(ap, int);
796 gi->checked = (boolean)va_arg(ap, int);
800 gi->radio_nr = va_arg(ap, unsigned int);
803 case GDI_NUMBER_VALUE:
804 gi->textinput.number_value = va_arg(ap, int);
805 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
806 strcpy(gi->textinput.last_value, gi->textinput.value);
807 gi->textinput.cursor_position = strlen(gi->textinput.value);
811 gi->textinput.number_min = va_arg(ap, int);
812 if (gi->textinput.number_value < gi->textinput.number_min)
814 gi->textinput.number_value = gi->textinput.number_min;
815 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
816 strcpy(gi->textinput.last_value, gi->textinput.value);
821 gi->textinput.number_max = va_arg(ap, int);
822 if (gi->textinput.number_value > gi->textinput.number_max)
824 gi->textinput.number_value = gi->textinput.number_max;
825 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
826 strcpy(gi->textinput.last_value, gi->textinput.value);
832 int max_textsize = MAX_GADGET_TEXTSIZE;
834 if (gi->textinput.size)
835 max_textsize = MIN(gi->textinput.size, MAX_GADGET_TEXTSIZE);
837 strncpy(gi->textinput.value, va_arg(ap, char *), max_textsize);
838 strcpy(gi->textinput.last_value, gi->textinput.value);
840 gi->textinput.value[max_textsize] = '\0';
841 gi->textinput.cursor_position = strlen(gi->textinput.value);
843 /* same tag also used for other gadget definitions */
844 strcpy(gi->textbutton.value, gi->textinput.value);
845 strcpy(gi->textarea.value, gi->textinput.value);
846 strcpy(gi->textarea.last_value, gi->textinput.value);
852 int tag_value = va_arg(ap, int);
853 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE);
855 gi->textinput.size = max_textsize;
856 gi->textinput.value[max_textsize] = '\0';
857 strcpy(gi->textinput.last_value, gi->textinput.value);
859 /* same tag also used for other gadget definitions */
861 gi->textarea.size = max_textsize;
862 gi->textarea.value[max_textsize] = '\0';
863 strcpy(gi->textarea.last_value, gi->textinput.value);
865 gi->textbutton.size = max_textsize;
866 gi->textbutton.value[max_textsize] = '\0';
868 gi->selectbox.size = gi->textinput.size;
873 gi->font = va_arg(ap, int);
874 if (gi->font_active == 0)
875 gi->font_active = gi->font;
878 case GDI_TEXT_FONT_ACTIVE:
879 gi->font_active = va_arg(ap, int);
882 case GDI_SELECTBOX_OPTIONS:
883 gi->selectbox.options = va_arg(ap, struct ValueTextInfo *);
886 case GDI_SELECTBOX_INDEX:
887 gi->selectbox.index = va_arg(ap, int);
890 case GDI_DESIGN_UNPRESSED:
891 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
892 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
893 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
896 case GDI_DESIGN_PRESSED:
897 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
898 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
899 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
902 case GDI_ALT_DESIGN_UNPRESSED:
903 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
904 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
905 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
908 case GDI_ALT_DESIGN_PRESSED:
909 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
910 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
911 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
914 case GDI_BORDER_SIZE:
915 gi->border.xsize = va_arg(ap, int);
916 gi->border.ysize = va_arg(ap, int);
919 case GDI_BORDER_SIZE_SELECTBUTTON:
920 gi->border.xsize_selectbutton = va_arg(ap, int);
923 case GDI_DESIGN_WIDTH:
924 gi->border.width = va_arg(ap, int);
927 case GDI_DECORATION_DESIGN:
928 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
929 gi->deco.design.x = va_arg(ap, int);
930 gi->deco.design.y = va_arg(ap, int);
933 case GDI_DECORATION_POSITION:
934 gi->deco.x = va_arg(ap, int);
935 gi->deco.y = va_arg(ap, int);
938 case GDI_DECORATION_SIZE:
939 gi->deco.width = va_arg(ap, int);
940 gi->deco.height = va_arg(ap, int);
943 case GDI_DECORATION_SHIFTING:
944 gi->deco.xshift = va_arg(ap, int);
945 gi->deco.yshift = va_arg(ap, int);
949 gi->event_mask = va_arg(ap, unsigned int);
953 gi->drawing.area_xsize = va_arg(ap, int);
954 gi->drawing.area_ysize = va_arg(ap, int);
956 /* determine dependent values for drawing area gadget, if needed */
957 if (gi->width == 0 && gi->height == 0 &&
958 gi->drawing.item_xsize !=0 && gi->drawing.item_ysize !=0)
960 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
961 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
963 else if (gi->drawing.item_xsize == 0 && gi->drawing.item_ysize == 0 &&
964 gi->width != 0 && gi->height != 0)
966 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
967 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
970 /* same tag also used for other gadget definitions */
971 gi->textarea.xsize = gi->drawing.area_xsize;
972 gi->textarea.ysize = gi->drawing.area_ysize;
974 if (gi->type & GD_TYPE_TEXT_AREA) /* force recalculation */
983 gi->drawing.item_xsize = va_arg(ap, int);
984 gi->drawing.item_ysize = va_arg(ap, int);
986 /* determine dependent values for drawing area gadget, if needed */
987 if (gi->width == 0 && gi->height == 0 &&
988 gi->drawing.area_xsize !=0 && gi->drawing.area_ysize !=0)
990 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
991 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
993 else if (gi->drawing.area_xsize == 0 && gi->drawing.area_ysize == 0 &&
994 gi->width != 0 && gi->height != 0)
996 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
997 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
1001 case GDI_SCROLLBAR_ITEMS_MAX:
1002 gi->scrollbar.items_max = va_arg(ap, int);
1005 case GDI_SCROLLBAR_ITEMS_VISIBLE:
1006 gi->scrollbar.items_visible = va_arg(ap, int);
1009 case GDI_SCROLLBAR_ITEM_POSITION:
1010 gi->scrollbar.item_position = va_arg(ap, int);
1013 case GDI_WHEEL_AREA_X:
1014 gi->wheelarea.x = va_arg(ap, int);
1017 case GDI_WHEEL_AREA_Y:
1018 gi->wheelarea.y = va_arg(ap, int);
1021 case GDI_WHEEL_AREA_WIDTH:
1022 gi->wheelarea.width = va_arg(ap, int);
1025 case GDI_WHEEL_AREA_HEIGHT:
1026 gi->wheelarea.height = va_arg(ap, int);
1029 case GDI_CALLBACK_INFO:
1030 gi->callback_info = va_arg(ap, gadget_function);
1033 case GDI_CALLBACK_ACTION:
1034 gi->callback_action = va_arg(ap, gadget_function);
1038 Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
1041 tag = va_arg(ap, int); /* read next tag */
1044 /* check if gadget is complete */
1045 if (gi->type != GD_TYPE_DRAWING_AREA &&
1046 (!gi->design[GD_BUTTON_UNPRESSED].bitmap ||
1047 !gi->design[GD_BUTTON_PRESSED].bitmap))
1048 Error(ERR_EXIT, "gadget incomplete (missing Bitmap)");
1050 /* adjust gadget values in relation to other gadget values */
1052 if (gi->type & GD_TYPE_TEXT_INPUT)
1054 int font_nr = gi->font_active;
1055 int font_width = getFontWidth(font_nr);
1056 int font_height = getFontHeight(font_nr);
1057 int border_xsize = gi->border.xsize;
1058 int border_ysize = gi->border.ysize;
1060 if (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC)
1062 int number_min = gi->textinput.number_min;
1063 int number_max = gi->textinput.number_max;
1064 int min_size_min = get_minimal_size_for_numeric_input(number_min);
1065 int min_size_max = get_minimal_size_for_numeric_input(number_max);
1066 int min_size = MAX(min_size_min, min_size_max);
1068 /* expand gadget text input size, if maximal value is too large */
1069 if (gi->textinput.size < min_size)
1070 gi->textinput.size = min_size;
1073 gi->width = 2 * border_xsize + (gi->textinput.size + 1) * font_width;
1074 gi->height = 2 * border_ysize + font_height;
1077 if (gi->type & GD_TYPE_SELECTBOX)
1079 int font_nr = gi->font_active;
1080 int font_width = getFontWidth(font_nr);
1081 int font_height = getFontHeight(font_nr);
1082 int border_xsize = gi->border.xsize;
1083 int border_ysize = gi->border.ysize;
1084 int button_size = gi->border.xsize_selectbutton;
1085 int bottom_screen_border = gfx.sy + gfx.sysize - font_height;
1089 gi->width = 2 * border_xsize + gi->textinput.size*font_width +button_size;
1090 gi->height = 2 * border_ysize + font_height;
1092 if (gi->selectbox.options == NULL)
1093 Error(ERR_EXIT, "selectbox gadget incomplete (missing options array)");
1095 gi->selectbox.num_values = 0;
1096 while (gi->selectbox.options[gi->selectbox.num_values].text != NULL)
1097 gi->selectbox.num_values++;
1099 /* calculate values for open selectbox */
1100 gi->selectbox.width = gi->width;
1101 gi->selectbox.height =
1102 2 * border_ysize + gi->selectbox.num_values * font_height;
1104 gi->selectbox.x = gi->x;
1105 gi->selectbox.y = gi->y + gi->height;
1106 if (gi->selectbox.y + gi->selectbox.height > bottom_screen_border)
1107 gi->selectbox.y = gi->y - gi->selectbox.height;
1108 if (gi->selectbox.y < 0)
1109 gi->selectbox.y = bottom_screen_border - gi->selectbox.height;
1111 getFontCharSource(font_nr, FONT_ASCII_CURSOR, &src_bitmap, &src_x, &src_y);
1112 src_x += font_width / 2;
1113 src_y += font_height / 2;
1115 /* there may be esoteric cases with missing or too small font bitmap */
1116 if (src_bitmap != NULL &&
1117 src_x < src_bitmap->width && src_y < src_bitmap->height)
1118 gi->selectbox.inverse_color = GetPixel(src_bitmap, src_x, src_y);
1120 /* always start with closed selectbox */
1121 gi->selectbox.open = FALSE;
1124 if (gi->type & GD_TYPE_TEXT_INPUT_NUMERIC)
1126 struct GadgetTextInput *text = &gi->textinput;
1127 int value = text->number_value;
1129 text->number_value = (value < text->number_min ? text->number_min :
1130 value > text->number_max ? text->number_max :
1133 sprintf(text->value, "%d", text->number_value);
1136 if (gi->type & GD_TYPE_TEXT_BUTTON)
1138 int font_nr = gi->font_active;
1139 int font_width = getFontWidth(font_nr);
1140 int font_height = getFontHeight(font_nr);
1141 int border_xsize = gi->border.xsize;
1142 int border_ysize = gi->border.ysize;
1144 gi->width = 2 * border_xsize + gi->textbutton.size * font_width;
1145 gi->height = 2 * border_ysize + font_height;
1148 if (gi->type & GD_TYPE_SCROLLBAR)
1150 struct GadgetScrollbar *gs = &gi->scrollbar;
1151 int scrollbar_size_cmp;
1153 if (gi->width == 0 || gi->height == 0 ||
1154 gs->items_max == 0 || gs->items_visible == 0)
1155 Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
1157 /* calculate internal scrollbar values */
1158 gs->size_min = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1159 gi->width : gi->height);
1160 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1161 gi->height : gi->width);
1163 scrollbar_size_cmp = gs->size_max * gs->items_visible / gs->items_max;
1164 gs->size = MAX(scrollbar_size_cmp, gs->size_min);
1165 gs->size_max_cmp = (gs->size_max - (gs->size - scrollbar_size_cmp));
1167 gs->position = gs->size_max_cmp * gs->item_position / gs->items_max;
1168 gs->position_max = gs->size_max - gs->size;
1169 gs->correction = gs->size_max / gs->items_max / 2;
1171 /* finetuning for maximal right/bottom position */
1172 if (gs->item_position == gs->items_max - gs->items_visible)
1173 gs->position = gs->position_max;
1176 if (gi->type & GD_TYPE_TEXT_AREA)
1178 int font_nr = gi->font_active;
1179 int font_width = getFontWidth(font_nr);
1180 int font_height = getFontHeight(font_nr);
1181 int border_xsize = gi->border.xsize;
1182 int border_ysize = gi->border.ysize;
1184 if (gi->width == 0 || gi->height == 0)
1186 gi->width = 2 * border_xsize + gi->textarea.xsize * font_width;
1187 gi->height = 2 * border_ysize + gi->textarea.ysize * font_height;
1191 gi->textarea.xsize = (gi->width - 2 * border_xsize) / font_width;
1192 gi->textarea.ysize = (gi->height - 2 * border_ysize) / font_height;
1197 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
1201 va_start(ap, first_tag);
1202 HandleGadgetTags(gi, first_tag, ap);
1208 void RedrawGadget(struct GadgetInfo *gi)
1214 DrawGadget(gi, gi->state, gi->direct_draw);
1217 struct GadgetInfo *CreateGadget(int first_tag, ...)
1219 struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
1222 /* always start with reliable default values */
1223 new_gadget->id = getNewGadgetID();
1224 new_gadget->callback_info = default_callback_info;
1225 new_gadget->callback_action = default_callback_action;
1226 new_gadget->active = TRUE;
1227 new_gadget->direct_draw = TRUE;
1229 new_gadget->next = NULL;
1231 va_start(ap, first_tag);
1232 HandleGadgetTags(new_gadget, first_tag, ap);
1235 /* insert new gadget into global gadget list */
1236 if (gadget_list_last_entry)
1238 gadget_list_last_entry->next = new_gadget;
1239 gadget_list_last_entry = gadget_list_last_entry->next;
1242 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
1247 void FreeGadget(struct GadgetInfo *gi)
1249 struct GadgetInfo *gi_previous = gadget_list_first_entry;
1254 /* prevent "last_info_gi" from pointing to memory that will be freed */
1255 if (last_info_gi == gi)
1256 last_info_gi = NULL;
1258 while (gi_previous != NULL && gi_previous->next != gi)
1259 gi_previous = gi_previous->next;
1261 if (gi == gadget_list_first_entry)
1262 gadget_list_first_entry = gi->next;
1264 if (gi == gadget_list_last_entry)
1265 gadget_list_last_entry = gi_previous;
1267 if (gi_previous != NULL)
1268 gi_previous->next = gi->next;
1273 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
1275 if (gi->type != GD_TYPE_TEXT_INPUT_NUMERIC)
1278 gi->textinput.number_value = atoi(gi->textinput.value);
1280 if (gi->textinput.number_value < gi->textinput.number_min)
1281 gi->textinput.number_value = gi->textinput.number_min;
1282 if (gi->textinput.number_value > gi->textinput.number_max)
1283 gi->textinput.number_value = gi->textinput.number_max;
1285 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
1287 if (gi->textinput.cursor_position < 0)
1288 gi->textinput.cursor_position = 0;
1289 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1290 gi->textinput.cursor_position = strlen(gi->textinput.value);
1293 /* global pointer to gadget actually in use (when mouse button pressed) */
1294 static struct GadgetInfo *last_gi = NULL;
1296 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
1298 if (gi == NULL || gi->mapped || GADGET_DEACTIVATED(gi))
1304 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
1307 void MapGadget(struct GadgetInfo *gi)
1309 MapGadgetExt(gi, TRUE);
1312 void UnmapGadget(struct GadgetInfo *gi)
1314 if (gi == NULL || !gi->mapped)
1323 #define MAX_NUM_GADGETS 1024
1324 #define MULTIMAP_UNMAP (1 << 0)
1325 #define MULTIMAP_REMAP (1 << 1)
1326 #define MULTIMAP_REDRAW (1 << 2)
1327 #define MULTIMAP_PLAYFIELD (1 << 3)
1328 #define MULTIMAP_DOOR_1 (1 << 4)
1329 #define MULTIMAP_DOOR_2 (1 << 5)
1330 #define MULTIMAP_DOOR_3 (1 << 6)
1331 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
1336 static void MultiMapGadgets(int mode)
1338 struct GadgetInfo *gi = gadget_list_first_entry;
1339 static boolean map_state[MAX_NUM_GADGETS];
1347 if ((mode & MULTIMAP_PLAYFIELD && IN_GFX_FIELD_FULL(x, y)) ||
1348 (mode & MULTIMAP_DOOR_1 && IN_GFX_DOOR_1(x, y)) ||
1349 (mode & MULTIMAP_DOOR_2 && IN_GFX_DOOR_2(x, y)) ||
1350 (mode & MULTIMAP_DOOR_3 && IN_GFX_DOOR_3(x, y)) ||
1351 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
1353 if (mode & MULTIMAP_UNMAP)
1355 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
1360 if (map_state[map_count++ % MAX_NUM_GADGETS])
1361 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
1369 void UnmapAllGadgets()
1371 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
1374 void RemapAllGadgets()
1376 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
1379 boolean anyTextInputGadgetActive()
1381 return (last_gi && (last_gi->type & GD_TYPE_TEXT_INPUT) && last_gi->mapped);
1384 boolean anyTextAreaGadgetActive()
1386 return (last_gi && (last_gi->type & GD_TYPE_TEXT_AREA) && last_gi->mapped);
1389 boolean anySelectboxGadgetActive()
1391 return (last_gi && (last_gi->type & GD_TYPE_SELECTBOX) && last_gi->mapped);
1394 boolean anyScrollbarGadgetActive()
1396 return (last_gi && (last_gi->type & GD_TYPE_SCROLLBAR) && last_gi->mapped);
1399 boolean anyTextGadgetActive()
1401 return (anyTextInputGadgetActive() ||
1402 anyTextAreaGadgetActive() ||
1403 anySelectboxGadgetActive());
1406 static boolean insideSelectboxLine(struct GadgetInfo *gi, int mx, int my)
1408 return (gi != NULL &&
1409 gi->type & GD_TYPE_SELECTBOX &&
1410 mx >= gi->x && mx < gi->x + gi->width &&
1411 my >= gi->y && my < gi->y + gi->height);
1414 static boolean insideSelectboxArea(struct GadgetInfo *gi, int mx, int my)
1416 return (gi != NULL &&
1417 gi->type & GD_TYPE_SELECTBOX &&
1418 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
1419 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height);
1422 void ClickOnGadget(struct GadgetInfo *gi, int button)
1427 /* simulate releasing mouse button over last gadget, if still pressed */
1429 HandleGadgets(-1, -1, 0);
1431 /* simulate pressing mouse button over specified gadget */
1432 HandleGadgets(gi->x, gi->y, button);
1434 /* simulate releasing mouse button over specified gadget */
1435 HandleGadgets(gi->x, gi->y, 0);
1438 boolean HandleGadgets(int mx, int my, int button)
1440 static unsigned int pressed_delay = 0;
1441 static unsigned int pressed_delay_value = GADGET_FRAME_DELAY;
1442 static int last_button = 0;
1443 static int last_mx = 0, last_my = 0;
1444 static int pressed_mx = 0, pressed_my = 0;
1445 static boolean keep_selectbox_open = FALSE;
1446 static boolean gadget_stopped = FALSE;
1447 int scrollbar_mouse_pos = 0;
1448 struct GadgetInfo *new_gi, *gi;
1449 boolean press_event;
1450 boolean release_event;
1451 boolean mouse_moving;
1452 boolean mouse_inside_select_line;
1453 boolean mouse_inside_select_area;
1454 boolean mouse_released_where_pressed;
1455 boolean gadget_pressed;
1456 boolean gadget_pressed_repeated;
1457 boolean gadget_pressed_off_borders;
1458 boolean gadget_pressed_inside_select_line;
1459 boolean gadget_pressed_delay_reached;
1460 boolean gadget_moving;
1461 boolean gadget_moving_inside;
1462 boolean gadget_moving_off_borders;
1463 boolean gadget_draggable;
1464 boolean gadget_dragging;
1465 boolean gadget_released;
1466 boolean gadget_released_inside;
1467 boolean gadget_released_inside_select_area;
1468 boolean gadget_released_off_borders;
1469 boolean changed_position = FALSE;
1471 /* check if there are any gadgets defined */
1472 if (gadget_list_first_entry == NULL)
1475 /* simulated release of mouse button over last gadget */
1476 if (mx == -1 && my == -1 && button == 0)
1482 /* check which gadget is under the mouse pointer */
1483 new_gi = getGadgetInfoFromMousePosition(mx, my, button);
1485 /* check if button state has changed since last invocation */
1486 press_event = (button != 0 && last_button == 0);
1487 release_event = (button == 0 && last_button != 0);
1488 last_button = button;
1490 /* check if mouse has been moved since last invocation */
1491 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
1495 if (press_event && new_gi != last_gi)
1501 mouse_released_where_pressed =
1502 (release_event && mx == pressed_mx && my == pressed_my);
1504 mouse_inside_select_line = insideSelectboxLine(new_gi, mx, my);
1505 mouse_inside_select_area = insideSelectboxArea(new_gi, mx, my);
1507 gadget_pressed_off_borders = (press_event && new_gi != last_gi);
1509 gadget_pressed_inside_select_line =
1510 (press_event && new_gi != NULL &&
1511 new_gi->type & GD_TYPE_SELECTBOX && new_gi->selectbox.open &&
1512 insideSelectboxLine(new_gi, mx, my));
1514 /* if mouse button pressed outside text or selectbox gadget, deactivate it */
1515 if (anyTextGadgetActive() &&
1516 (gadget_pressed_off_borders ||
1517 (gadget_pressed_inside_select_line && !mouse_inside_select_area)))
1519 struct GadgetInfo *gi = last_gi;
1520 boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_LEAVING) != 0);
1522 /* check if text gadget has changed its value */
1523 if (gi->type & GD_TYPE_TEXT_INPUT)
1525 CheckRangeOfNumericInputGadget(gi);
1527 if (!strEqual(gi->textinput.last_value, gi->textinput.value))
1528 strcpy(gi->textinput.last_value, gi->textinput.value);
1530 gadget_changed = FALSE;
1533 /* selectbox does not change its value when closed by clicking outside */
1534 if (gi->type & GD_TYPE_SELECTBOX)
1535 gadget_changed = FALSE;
1537 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1539 gi->event.type = GD_EVENT_TEXT_LEAVING;
1541 if (gadget_changed && !(gi->type & GD_TYPE_SELECTBOX))
1542 gi->callback_action(gi);
1546 if (gadget_pressed_inside_select_line)
1551 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
1552 gadget_pressed_repeated =
1553 (button != 0 && last_gi != NULL && new_gi == last_gi);
1555 gadget_pressed_delay_reached =
1556 DelayReached(&pressed_delay, pressed_delay_value);
1558 gadget_released = (release_event && last_gi != NULL);
1559 gadget_released_inside = (gadget_released && new_gi == last_gi);
1560 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
1562 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
1563 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
1564 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
1566 /* when handling selectbox, set additional state values */
1567 if (gadget_released_inside && (last_gi->type & GD_TYPE_SELECTBOX))
1568 gadget_released_inside_select_area = insideSelectboxArea(last_gi, mx, my);
1570 gadget_released_inside_select_area = FALSE;
1572 /* setting state for handling over-large selectbox */
1573 if (keep_selectbox_open && (press_event || !mouse_inside_select_line))
1574 keep_selectbox_open = FALSE;
1576 /* if new gadget pressed, store this gadget */
1580 /* 'gi' is actually handled gadget */
1583 /* if gadget is scrollbar, choose mouse position value */
1584 if (gi && gi->type & GD_TYPE_SCROLLBAR)
1585 scrollbar_mouse_pos =
1586 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
1588 /* if mouse button released, no gadget needs to be handled anymore */
1589 if (gadget_released)
1591 if (gi->type & GD_TYPE_SELECTBOX &&
1592 (keep_selectbox_open ||
1593 mouse_released_where_pressed ||
1594 !gadget_released_inside_select_area)) /* selectbox stays open */
1596 gi->selectbox.stay_open = TRUE;
1600 else if (!(gi->type & GD_TYPE_TEXT_INPUT ||
1601 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1605 /* modify event position values even if no gadget is pressed */
1606 if (button == 0 && !release_event)
1609 /* if new gadget or if no gadget was pressed, release stopped processing */
1610 if (gadget_pressed || new_gi == NULL)
1611 gadget_stopped = FALSE;
1613 /* if gadget was stopped while being handled, stop gadget processing here */
1619 int last_x = gi->event.x;
1620 int last_y = gi->event.y;
1622 gi->event.x = mx - gi->x;
1623 gi->event.y = my - gi->y;
1625 if (gi->type == GD_TYPE_DRAWING_AREA)
1627 gi->event.x /= gi->drawing.item_xsize;
1628 gi->event.y /= gi->drawing.item_ysize;
1630 if (last_x != gi->event.x || last_y != gi->event.y)
1631 changed_position = TRUE;
1633 else if (gi->type & GD_TYPE_TEXT_INPUT && button != 0 && !motion_status)
1635 int old_cursor_position = gi->textinput.cursor_position;
1637 /* if mouse button pressed inside activated text gadget, set cursor */
1638 gi->textinput.cursor_position =
1639 (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1641 if (gi->textinput.cursor_position < 0)
1642 gi->textinput.cursor_position = 0;
1643 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1644 gi->textinput.cursor_position = strlen(gi->textinput.value);
1646 if (gi->textinput.cursor_position != old_cursor_position)
1647 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1649 else if (gi->type & GD_TYPE_TEXT_AREA && button != 0 && !motion_status)
1651 int old_cursor_position = gi->textarea.cursor_position;
1652 int x = (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1653 int y = (my - gi->y - gi->border.ysize) / getFontHeight(gi->font);
1655 x = (x < 0 ? 0 : x >= gi->textarea.xsize ? gi->textarea.xsize - 1 : x);
1656 y = (y < 0 ? 0 : y >= gi->textarea.ysize ? gi->textarea.ysize - 1 : y);
1658 setTextAreaCursorXY(gi, x, y);
1660 if (gi->textarea.cursor_position != old_cursor_position)
1661 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1663 else if (gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
1664 !keep_selectbox_open)
1666 int old_index = gi->selectbox.current_index;
1668 /* if mouse moving inside activated selectbox, select value */
1669 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1670 gi->selectbox.current_index =
1671 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1673 if (gi->selectbox.current_index < 0)
1674 gi->selectbox.current_index = 0;
1675 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1676 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1678 if (gi->selectbox.current_index != old_index)
1679 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1683 /* handle gadget popup info text */
1684 if (last_info_gi != new_gi ||
1685 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
1687 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
1689 new_gi->event.type = GD_EVENT_INFO_ENTERING;
1690 new_gi->callback_info(new_gi);
1692 else if (last_info_gi != NULL)
1694 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
1695 last_info_gi->callback_info(last_info_gi);
1698 last_info_gi = new_gi;
1701 gadget_draggable = (gi && gi->type & GD_TYPE_SCROLLBAR);
1703 /* reset drag position for newly pressed scrollbar to "not dragging" */
1704 if (gadget_pressed && gadget_draggable)
1705 gi->scrollbar.drag_position = -1;
1707 gadget_dragging = (gadget_draggable && gi->scrollbar.drag_position != -1);
1709 /* clicking next to a scrollbar to move it is not considered "moving" */
1710 if (gadget_draggable && !gadget_dragging)
1711 gadget_moving = FALSE;
1713 /* when leaving scrollbar area when jump-scrolling, stop gadget processing */
1714 if (gadget_draggable && !gadget_dragging && gadget_moving_off_borders)
1715 gadget_stopped = TRUE;
1717 if ((gadget_pressed) ||
1718 (gadget_pressed_repeated && gadget_pressed_delay_reached))
1720 if (gadget_pressed) /* gadget pressed the first time */
1722 /* initialize delay counter */
1723 DelayReached(&pressed_delay, 0);
1725 /* start gadget delay with longer delay after first click on gadget */
1726 pressed_delay_value = GADGET_FRAME_DELAY_FIRST;
1728 else /* gadget hold pressed for some time */
1730 /* after first repeated gadget click, continue with shorter delay value */
1731 pressed_delay_value = GADGET_FRAME_DELAY;
1734 if (gi->type & GD_TYPE_SCROLLBAR && !gadget_dragging)
1736 int mpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx : my);
1737 int gpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? gi->x : gi->y);
1738 int slider_start = gpos + gi->scrollbar.position;
1739 int slider_end = gpos + gi->scrollbar.position + gi->scrollbar.size - 1;
1740 boolean inside_slider = (mpos >= slider_start && mpos <= slider_end);
1742 if (IS_WHEEL_BUTTON(button) || !inside_slider)
1744 /* click scrollbar one scrollbar length up/left or down/right */
1746 struct GadgetScrollbar *gs = &gi->scrollbar;
1747 int old_item_position = gs->item_position;
1748 int item_steps = gs->items_visible - 1;
1749 int item_direction = (mpos < gpos + gi->scrollbar.position ? -1 : +1);
1751 if (IS_WHEEL_BUTTON(button))
1753 boolean scroll_single_step = ((GetKeyModState() & KMOD_Alt) != 0);
1755 item_steps = (scroll_single_step ? 1 : DEFAULT_WHEEL_STEPS);
1756 item_direction = (button == MB_WHEEL_UP ||
1757 button == MB_WHEEL_LEFT ? -1 : +1);
1760 changed_position = FALSE;
1762 gs->item_position += item_steps * item_direction;
1764 if (gs->item_position < 0)
1765 gs->item_position = 0;
1766 else if (gs->item_position > gs->items_max - gs->items_visible)
1767 gs->item_position = gs->items_max - gs->items_visible;
1769 if (old_item_position != gs->item_position)
1771 gi->event.item_position = gs->item_position;
1772 changed_position = TRUE;
1775 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
1778 gi->state = GD_BUTTON_UNPRESSED;
1779 gi->event.type = GD_EVENT_MOVING;
1780 gi->event.off_borders = FALSE;
1782 if (gi->event_mask & GD_EVENT_MOVING && changed_position)
1783 gi->callback_action(gi);
1789 /* don't handle this scrollbar anymore when mouse position reached */
1790 if (gadget_pressed_repeated)
1792 gadget_stopped = TRUE;
1802 PlayGadgetSoundActivating();
1804 if (gi->type == GD_TYPE_CHECK_BUTTON)
1806 gi->checked = !gi->checked;
1808 else if (gi->type == GD_TYPE_RADIO_BUTTON)
1810 struct GadgetInfo *rgi = gadget_list_first_entry;
1815 rgi->type == GD_TYPE_RADIO_BUTTON &&
1816 rgi->radio_nr == gi->radio_nr &&
1819 rgi->checked = FALSE;
1820 DrawGadget(rgi, DG_UNPRESSED, rgi->direct_draw);
1828 else if (gi->type & GD_TYPE_SCROLLBAR)
1830 int mpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx : my);
1831 int gpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? gi->x : gi->y);
1832 int slider_start = gpos + gi->scrollbar.position;
1833 int slider_end = gpos + gi->scrollbar.position + gi->scrollbar.size - 1;
1834 boolean inside_slider = (mpos >= slider_start && mpos <= slider_end);
1836 if (!IS_WHEEL_BUTTON(button) && inside_slider)
1838 /* start dragging scrollbar */
1839 gi->scrollbar.drag_position =
1840 scrollbar_mouse_pos - gi->scrollbar.position;
1843 else if (gi->type & GD_TYPE_SELECTBOX)
1845 /* keep selectbox open in case of over-large selectbox */
1846 keep_selectbox_open = (mouse_inside_select_line &&
1847 mouse_inside_select_area);
1850 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1852 gi->state = GD_BUTTON_PRESSED;
1853 gi->event.type = GD_EVENT_PRESSED;
1854 gi->event.button = button;
1855 gi->event.off_borders = FALSE;
1857 if (gi->event_mask & GD_EVENT_PRESSED)
1858 gi->callback_action(gi);
1861 if (gadget_pressed_repeated)
1863 gi->event.type = GD_EVENT_PRESSED;
1865 if (gi->event_mask & GD_EVENT_REPEATED && gadget_pressed_delay_reached)
1866 gi->callback_action(gi);
1871 if (gi->type & GD_TYPE_BUTTON)
1873 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
1874 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1875 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
1876 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1878 else if (gi->type & GD_TYPE_SELECTBOX && !keep_selectbox_open)
1880 int old_index = gi->selectbox.current_index;
1882 /* if mouse moving inside activated selectbox, select value */
1883 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1884 gi->selectbox.current_index =
1885 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1887 if (gi->selectbox.current_index < 0)
1888 gi->selectbox.current_index = 0;
1889 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1890 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1892 if (gi->selectbox.current_index != old_index)
1893 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1895 else if (gi->type & GD_TYPE_SCROLLBAR)
1897 struct GadgetScrollbar *gs = &gi->scrollbar;
1898 int old_item_position = gs->item_position;
1900 gs->position = scrollbar_mouse_pos - gs->drag_position;
1902 /* make sure to always precisely reach end positions when dragging */
1903 if (gs->position <= 0)
1906 gs->item_position = 0;
1908 else if (gs->position >= gs->position_max)
1910 gs->position = gs->position_max;
1911 gs->item_position = gs->items_max - gs->items_visible;
1916 gs->items_max * (gs->position + gs->correction) / gs->size_max_cmp;
1919 if (gs->item_position < 0)
1920 gs->item_position = 0;
1921 if (gs->item_position > gs->items_max - 1)
1922 gs->item_position = gs->items_max - 1;
1924 if (old_item_position != gs->item_position)
1926 gi->event.item_position = gs->item_position;
1927 changed_position = TRUE;
1930 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1933 gi->state = (gadget_moving_inside || gadget_draggable ?
1934 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
1935 gi->event.type = GD_EVENT_MOVING;
1936 gi->event.off_borders = gadget_moving_off_borders;
1938 if (gi->event_mask & GD_EVENT_MOVING && changed_position &&
1939 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
1940 gi->callback_action(gi);
1943 if (gadget_released_inside)
1945 boolean deactivate_gadget = TRUE;
1946 boolean gadget_changed = TRUE;
1948 if (gi->type & GD_TYPE_SELECTBOX)
1950 if (keep_selectbox_open ||
1951 mouse_released_where_pressed ||
1952 !gadget_released_inside_select_area) /* selectbox stays open */
1954 deactivate_gadget = FALSE;
1955 gadget_changed = FALSE;
1957 else if (gi->selectbox.index != gi->selectbox.current_index)
1958 gi->selectbox.index = gi->selectbox.current_index;
1960 gadget_changed = FALSE;
1963 if (deactivate_gadget &&
1964 !(gi->type & GD_TYPE_TEXT_INPUT ||
1965 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1966 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1968 gi->state = GD_BUTTON_UNPRESSED;
1969 gi->event.type = GD_EVENT_RELEASED;
1971 if ((gi->event_mask & GD_EVENT_RELEASED) && gadget_changed)
1973 gi->callback_action(gi);
1977 if (gadget_released_off_borders)
1979 if (gi->type & GD_TYPE_SCROLLBAR)
1980 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1982 gi->state = GD_BUTTON_UNPRESSED;
1983 gi->event.type = GD_EVENT_RELEASED;
1985 if (gi->event_mask & GD_EVENT_RELEASED &&
1986 gi->event_mask & GD_EVENT_OFF_BORDERS)
1987 gi->callback_action(gi);
1990 /* handle gadgets unmapped/mapped between pressing and releasing */
1991 if (release_event && !gadget_released && new_gi)
1992 new_gi->state = GD_BUTTON_UNPRESSED;
1994 return (gadget_pressed || gadget_pressed_repeated ||
1995 gadget_released || gadget_moving);
1998 static void insertCharIntoTextArea(struct GadgetInfo *gi, char c)
2000 char text[MAX_GADGET_TEXTSIZE + 1];
2001 int cursor_position = gi->textarea.cursor_position;
2003 if (strlen(gi->textarea.value) >= MAX_GADGET_TEXTSIZE) /* no space left */
2006 strcpy(text, gi->textarea.value);
2007 strcpy(&gi->textarea.value[cursor_position + 1], &text[cursor_position]);
2008 gi->textarea.value[cursor_position] = c;
2010 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2013 boolean HandleGadgetsKeyInput(Key key)
2015 struct GadgetInfo *gi = last_gi;
2017 if (gi == NULL || !gi->mapped ||
2018 !(gi->type & GD_TYPE_TEXT_INPUT ||
2019 gi->type & GD_TYPE_TEXT_AREA ||
2020 gi->type & GD_TYPE_SELECTBOX))
2023 if (key == KSYM_Return) /* valid for both text input and selectbox */
2025 boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_RETURN) != 0);
2027 if (gi->type & GD_TYPE_TEXT_INPUT)
2029 CheckRangeOfNumericInputGadget(gi);
2031 if (!strEqual(gi->textinput.last_value, gi->textinput.value))
2032 strcpy(gi->textinput.last_value, gi->textinput.value);
2034 gadget_changed = FALSE;
2036 else if (gi->type & GD_TYPE_SELECTBOX)
2038 if (gi->selectbox.index != gi->selectbox.current_index)
2039 gi->selectbox.index = gi->selectbox.current_index;
2041 gadget_changed = FALSE;
2044 if (gi->type & GD_TYPE_TEXT_AREA)
2046 insertCharIntoTextArea(gi, '\n');
2048 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2052 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2054 gi->event.type = GD_EVENT_TEXT_RETURN;
2060 gi->callback_action(gi);
2062 else if (gi->type & GD_TYPE_TEXT_INPUT) /* only valid for text input */
2064 char text[MAX_GADGET_TEXTSIZE + 1];
2065 int text_length = strlen(gi->textinput.value);
2066 int cursor_pos = gi->textinput.cursor_position;
2067 char letter = getCharFromKey(key);
2068 boolean legal_letter = (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC ?
2069 letter >= '0' && letter <= '9' :
2072 if (legal_letter && text_length < gi->textinput.size)
2074 strcpy(text, gi->textinput.value);
2075 strcpy(&gi->textinput.value[cursor_pos + 1], &text[cursor_pos]);
2076 gi->textinput.value[cursor_pos] = letter;
2077 gi->textinput.cursor_position++;
2079 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2081 else if (key == KSYM_Left && cursor_pos > 0)
2083 gi->textinput.cursor_position--;
2085 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2087 else if (key == KSYM_Right && cursor_pos < text_length)
2089 gi->textinput.cursor_position++;
2091 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2093 else if (key == KSYM_BackSpace && cursor_pos > 0)
2095 strcpy(text, gi->textinput.value);
2096 strcpy(&gi->textinput.value[cursor_pos - 1], &text[cursor_pos]);
2097 gi->textinput.cursor_position--;
2099 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2101 else if (key == KSYM_Delete && cursor_pos < text_length)
2103 strcpy(text, gi->textinput.value);
2104 strcpy(&gi->textinput.value[cursor_pos], &text[cursor_pos + 1]);
2106 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2109 else if (gi->type & GD_TYPE_TEXT_AREA) /* only valid for text area */
2111 char text[MAX_GADGET_TEXTSIZE + 1];
2112 int text_length = strlen(gi->textarea.value);
2113 int area_ysize = gi->textarea.ysize;
2114 int cursor_x_pref = gi->textarea.cursor_x_preferred;
2115 int cursor_y = gi->textarea.cursor_y;
2116 int cursor_pos = gi->textarea.cursor_position;
2117 char letter = getCharFromKey(key);
2118 boolean legal_letter = (letter != 0);
2122 insertCharIntoTextArea(gi, letter);
2124 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2126 else if (key == KSYM_Left && cursor_pos > 0)
2128 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2130 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2132 else if (key == KSYM_Right && cursor_pos < text_length)
2134 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2136 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2138 else if (key == KSYM_Up && cursor_y > 0)
2140 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y - 1);
2141 gi->textarea.cursor_x_preferred = cursor_x_pref;
2143 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2145 else if (key == KSYM_Down && cursor_y < area_ysize - 1)
2147 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y + 1);
2148 gi->textarea.cursor_x_preferred = cursor_x_pref;
2150 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2152 else if (key == KSYM_BackSpace && cursor_pos > 0)
2154 strcpy(text, gi->textarea.value);
2155 strcpy(&gi->textarea.value[cursor_pos - 1], &text[cursor_pos]);
2157 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2159 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2161 else if (key == KSYM_Delete && cursor_pos < text_length)
2163 strcpy(text, gi->textarea.value);
2164 strcpy(&gi->textarea.value[cursor_pos], &text[cursor_pos + 1]);
2166 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2169 else if (gi->type & GD_TYPE_SELECTBOX) /* only valid for selectbox */
2171 int index = gi->selectbox.current_index;
2172 int num_values = gi->selectbox.num_values;
2174 if (key == KSYM_Up && index > 0)
2176 gi->selectbox.current_index--;
2178 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2180 else if (key == KSYM_Down && index < num_values - 1)
2182 gi->selectbox.current_index++;
2184 DrawGadget(gi, DG_PRESSED, gi->direct_draw);