1 /***********************************************************
2 * Artsoft Retro-Game Library *
3 *----------------------------------------------------------*
4 * (c) 1994-2006 Artsoft Entertainment *
6 * Detmolder Strasse 189 *
9 * e-mail: info@artsoft.org *
10 *----------------------------------------------------------*
12 ***********************************************************/
22 /* values for DrawGadget() */
23 #define DG_UNPRESSED 0
29 static struct GadgetInfo *gadget_list_first_entry = NULL;
30 static struct GadgetInfo *gadget_list_last_entry = NULL;
31 static struct GadgetInfo *last_info_gi = NULL;
32 static int next_free_gadget_id = 1;
33 static boolean gadget_id_wrapped = FALSE;
35 static void (*PlayGadgetSoundActivating)(void) = NULL;
36 static void (*PlayGadgetSoundSelecting)(void) = NULL;
39 void InitGadgetsSoundCallback(void (*activating_function)(void),
40 void (*selecting_function)(void))
42 PlayGadgetSoundActivating = activating_function;
43 PlayGadgetSoundSelecting = selecting_function;
46 static struct GadgetInfo *getGadgetInfoFromGadgetID(int id)
48 struct GadgetInfo *gi = gadget_list_first_entry;
50 while (gi && gi->id != id)
56 static int getNewGadgetID()
58 int id = next_free_gadget_id++;
60 if (next_free_gadget_id <= 0) /* counter overrun */
62 gadget_id_wrapped = TRUE; /* now we must check each ID */
63 next_free_gadget_id = 0;
66 if (gadget_id_wrapped)
68 next_free_gadget_id++;
69 while (getGadgetInfoFromGadgetID(next_free_gadget_id) != NULL)
70 next_free_gadget_id++;
73 if (next_free_gadget_id <= 0) /* cannot get new gadget id */
74 Error(ERR_EXIT, "too much gadgets -- this should not happen");
79 static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my,
82 struct GadgetInfo *gi;
84 /* first check for scrollbars in case of mouse scroll wheel button events */
85 if (IS_WHEEL_BUTTON(button))
87 /* real horizontal wheel or vertical wheel with modifier key pressed */
88 boolean check_horizontal = (IS_WHEEL_BUTTON_HORIZONTAL(button) ||
89 GetKeyModState() & KMOD_Shift);
91 /* check for the first active scrollbar with matching mouse wheel area */
92 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
94 if (gi->mapped && gi->active &&
95 ((gi->type & GD_TYPE_SCROLLBAR_HORIZONTAL && check_horizontal) ||
96 (gi->type & GD_TYPE_SCROLLBAR_VERTICAL && !check_horizontal)) &&
97 mx >= gi->wheelarea.x && mx < gi->wheelarea.x + gi->wheelarea.width &&
98 my >= gi->wheelarea.y && my < gi->wheelarea.y + gi->wheelarea.height)
102 /* no active scrollbar found -- ignore this scroll wheel button event */
106 /* open selectboxes may overlap other active gadgets, so check them first */
107 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
109 if (gi->mapped && gi->active &&
110 gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
111 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
112 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
116 /* check all other gadgets */
117 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
119 if (gi->mapped && gi->active &&
120 mx >= gi->x && mx < gi->x + gi->width &&
121 my >= gi->y && my < gi->y + gi->height)
128 static void setTextAreaCursorExt(struct GadgetInfo *gi, boolean set_cursor_pos)
130 char *text = gi->textarea.value;
131 int area_xsize = gi->textarea.xsize;
132 int area_ysize = gi->textarea.ysize;
133 int cursor_position = gi->textarea.cursor_position;
134 int cursor_x = gi->textarea.cursor_x;
135 int cursor_y = gi->textarea.cursor_y;
142 if (set_cursor_pos) /* x/y => position */
144 if (y == cursor_y && (x == cursor_x || (x < cursor_x && *text == '\n')))
147 else /* position => x/y */
149 if (pos == cursor_position)
153 if (x + 1 >= area_xsize || *text == '\n')
155 if (y + 1 >= area_ysize)
168 gi->textarea.cursor_x = x;
169 gi->textarea.cursor_y = y;
170 gi->textarea.cursor_x_preferred = x;
171 gi->textarea.cursor_position = pos;
174 static void setTextAreaCursorXY(struct GadgetInfo *gi, int x, int y)
176 gi->textarea.cursor_x = x;
177 gi->textarea.cursor_y = y;
179 setTextAreaCursorExt(gi, TRUE);
182 static void setTextAreaCursorPosition(struct GadgetInfo *gi, int pos)
184 gi->textarea.cursor_position = pos;
186 setTextAreaCursorExt(gi, FALSE);
189 static void default_callback_info(void *ptr)
194 static void default_callback_action(void *ptr)
199 static void DrawGadget(struct GadgetInfo *gi, boolean pressed, boolean direct)
201 struct GadgetDesign *gd;
202 int state = (pressed ? GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
203 boolean redraw_selectbox = FALSE;
208 gd = (!gi->active ? &gi->alt_design[state] :
209 gi->checked ? &gi->alt_design[state] : &gi->design[state]);
213 case GD_TYPE_NORMAL_BUTTON:
214 case GD_TYPE_CHECK_BUTTON:
215 case GD_TYPE_RADIO_BUTTON:
216 BlitBitmapOnBackground(gd->bitmap, drawto,
217 gd->x, gd->y, gi->width, gi->height,
219 if (gi->deco.design.bitmap)
220 BlitBitmap(gi->deco.design.bitmap, drawto,
221 gi->deco.design.x, gi->deco.design.y,
222 gi->deco.width, gi->deco.height,
223 gi->x + gi->deco.x + (pressed ? gi->deco.xshift : 0),
224 gi->y + gi->deco.y + (pressed ? gi->deco.yshift : 0));
227 case GD_TYPE_TEXT_BUTTON:
230 int font_nr = (gi->active ? gi->font_active : gi->font);
231 int font_width = getFontWidth(font_nr);
232 int border_x = gi->border.xsize;
233 int border_y = gi->border.ysize;
234 int text_size = strlen(gi->textbutton.value);
235 int text_start = (gi->width - text_size * font_width) / 2;
237 /* left part of gadget */
238 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
239 border_x, gi->height, gi->x, gi->y);
241 /* middle part of gadget */
242 for (i=0; i < gi->textbutton.size; i++)
243 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
244 font_width, gi->height,
245 gi->x + border_x + i * font_width, gi->y);
247 /* right part of gadget */
248 BlitBitmapOnBackground(gd->bitmap, drawto,
249 gd->x + gi->border.width - border_x, gd->y,
250 border_x, gi->height,
251 gi->x + gi->width - border_x, gi->y);
253 /* gadget text value */
255 gi->x + text_start + (pressed ? gi->deco.xshift : 0),
256 gi->y + border_y + (pressed ? gi->deco.yshift : 0),
257 gi->textbutton.value, font_nr, BLIT_MASKED);
261 case GD_TYPE_TEXT_INPUT_ALPHANUMERIC:
262 case GD_TYPE_TEXT_INPUT_NUMERIC:
266 char cursor_string[2];
267 char text[MAX_GADGET_TEXTSIZE + 1];
268 int font_nr = (pressed ? gi->font_active : gi->font);
269 int font_width = getFontWidth(font_nr);
270 int border_x = gi->border.xsize;
271 int border_y = gi->border.ysize;
273 /* left part of gadget */
274 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
275 border_x, gi->height, gi->x, gi->y);
277 /* middle part of gadget */
278 for (i=0; i < gi->textinput.size + 1; i++)
279 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
280 font_width, gi->height,
281 gi->x + border_x + i * font_width, gi->y);
283 /* right part of gadget */
284 BlitBitmapOnBackground(gd->bitmap, drawto,
285 gd->x + gi->border.width - border_x, gd->y,
286 border_x, gi->height,
287 gi->x + gi->width - border_x, gi->y);
290 strcpy(text, gi->textinput.value);
293 /* gadget text value */
295 gi->x + border_x, gi->y + border_y, text,
296 font_nr, BLIT_MASKED);
298 cursor_letter = gi->textinput.value[gi->textinput.cursor_position];
299 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
300 cursor_string[1] = '\0';
302 /* draw cursor, if active */
306 gi->textinput.cursor_position * font_width,
307 gi->y + border_y, cursor_string,
308 font_nr, BLIT_INVERSE);
312 case GD_TYPE_TEXT_AREA:
316 char cursor_string[2];
317 int font_nr = (pressed ? gi->font_active : gi->font);
318 int font_width = getFontWidth(font_nr);
319 int font_height = getFontHeight(font_nr);
320 int border_x = gi->border.xsize;
321 int border_y = gi->border.ysize;
322 int gd_height = 2 * border_y + font_height;
324 /* top left part of gadget border */
325 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
326 border_x, border_y, gi->x, gi->y);
328 /* top middle part of gadget border */
329 for (i=0; i < gi->textarea.xsize; i++)
330 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
331 font_width, border_y,
332 gi->x + border_x + i * font_width, gi->y);
334 /* top right part of gadget border */
335 BlitBitmapOnBackground(gd->bitmap, drawto,
336 gd->x + gi->border.width - border_x, gd->y,
338 gi->x + gi->width - border_x, gi->y);
340 /* left and right part of gadget border for each row */
341 for (i=0; i < gi->textarea.ysize; i++)
343 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
344 border_x, font_height,
345 gi->x, gi->y + border_y + i * font_height);
346 BlitBitmapOnBackground(gd->bitmap, drawto,
347 gd->x + gi->border.width - border_x,
349 border_x, font_height,
350 gi->x + gi->width - border_x,
351 gi->y + border_y + i * font_height);
354 /* bottom left part of gadget border */
355 BlitBitmapOnBackground(gd->bitmap, drawto,
356 gd->x, gd->y + gd_height - border_y,
358 gi->x, gi->y + gi->height - border_y);
360 /* bottom middle part of gadget border */
361 for (i=0; i < gi->textarea.xsize; i++)
362 BlitBitmapOnBackground(gd->bitmap, drawto,
364 gd->y + gd_height - border_y,
365 font_width, border_y,
366 gi->x + border_x + i * font_width,
367 gi->y + gi->height - border_y);
369 /* bottom right part of gadget border */
370 BlitBitmapOnBackground(gd->bitmap, drawto,
371 gd->x + gi->border.width - border_x,
372 gd->y + gd_height - border_y,
374 gi->x + gi->width - border_x,
375 gi->y + gi->height - border_y);
377 ClearRectangleOnBackground(drawto,
380 gi->width - 2 * border_x,
381 gi->height - 2 * border_y);
383 /* 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 DrawTextToTextArea(gi->x + border_x, gi->y + border_y,
390 gi->textarea.value, font_nr, gi->textarea.xsize,
391 gi->textarea.xsize, gi->textarea.ysize,
395 cursor_letter = gi->textarea.value[gi->textarea.cursor_position];
396 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
397 cursor_string[1] = '\0';
399 /* draw cursor, if active */
402 gi->x + border_x + gi->textarea.cursor_x * font_width,
403 gi->y + border_y + gi->textarea.cursor_y * font_height,
405 font_nr, BLIT_INVERSE);
409 case GD_TYPE_SELECTBOX:
412 char text[MAX_GADGET_TEXTSIZE + 1];
413 int font_nr = (pressed ? gi->font_active : gi->font);
414 int font_width = getFontWidth(font_nr);
415 int font_height = getFontHeight(font_nr);
416 int border_x = gi->border.xsize;
417 int border_y = gi->border.ysize;
418 int button = gi->border.xsize_selectbutton;
419 int width_inner = gi->border.width - button - 2 * border_x;
420 int box_width = gi->selectbox.width;
421 int box_height = gi->selectbox.height;
423 /* left part of gadget */
424 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
425 border_x, gi->height, gi->x, gi->y);
427 /* middle part of gadget */
428 for (i=0; i < gi->selectbox.size; i++)
429 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
430 font_width, gi->height,
431 gi->x + border_x + i * font_width, gi->y);
433 /* button part of gadget */
434 BlitBitmapOnBackground(gd->bitmap, drawto,
435 gd->x + border_x + width_inner, gd->y,
437 gi->x + gi->width - border_x - button, gi->y);
439 /* right part of gadget */
440 BlitBitmapOnBackground(gd->bitmap, drawto,
441 gd->x + gi->border.width - border_x, gd->y,
442 border_x, gi->height,
443 gi->x + gi->width - border_x, gi->y);
446 strncpy(text, gi->selectbox.options[gi->selectbox.index].text,
448 text[gi->selectbox.size] = '\0';
450 /* gadget text value */
451 DrawTextExt(drawto, gi->x + border_x, gi->y + border_y, text,
452 font_nr, BLIT_MASKED);
456 if (!gi->selectbox.open)
458 gi->selectbox.open = TRUE;
459 gi->selectbox.stay_open = FALSE;
460 gi->selectbox.current_index = gi->selectbox.index;
462 /* save background under selectbox */
463 BlitBitmap(drawto, gfx.field_save_buffer,
464 gi->selectbox.x, gi->selectbox.y,
465 gi->selectbox.width, gi->selectbox.height,
466 gi->selectbox.x, gi->selectbox.y);
469 /* draw open selectbox */
471 /* top left part of gadget border */
472 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
474 gi->selectbox.x, gi->selectbox.y);
476 /* top middle part of gadget border */
477 for (i=0; i < gi->selectbox.size; i++)
478 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
479 font_width, border_y,
480 gi->selectbox.x + border_x + i * font_width,
483 /* top button part of gadget border */
484 BlitBitmapOnBackground(gd->bitmap, drawto,
485 gd->x + border_x + width_inner, gd->y,
487 gi->selectbox.x + box_width -border_x -button,
490 /* top right part of gadget border */
491 BlitBitmapOnBackground(gd->bitmap, drawto,
492 gd->x + gi->border.width - border_x, gd->y,
494 gi->selectbox.x + box_width - border_x,
497 /* left and right part of gadget border for each row */
498 for (i=0; i < gi->selectbox.num_values; i++)
500 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
501 border_x, font_height,
503 gi->selectbox.y + border_y + i*font_height);
504 BlitBitmapOnBackground(gd->bitmap, drawto,
505 gd->x + gi->border.width - border_x,
507 border_x, font_height,
508 gi->selectbox.x + box_width - border_x,
509 gi->selectbox.y + border_y + i*font_height);
512 /* bottom left part of gadget border */
513 BlitBitmapOnBackground(gd->bitmap, drawto,
514 gd->x, gd->y + gi->height - border_y,
517 gi->selectbox.y + box_height - border_y);
519 /* bottom middle part of gadget border */
520 for (i=0; i < gi->selectbox.size; i++)
521 BlitBitmapOnBackground(gd->bitmap, drawto,
523 gd->y + gi->height - border_y,
524 font_width, border_y,
525 gi->selectbox.x + border_x + i * font_width,
526 gi->selectbox.y + box_height - border_y);
528 /* bottom button part of gadget border */
529 BlitBitmapOnBackground(gd->bitmap, drawto,
530 gd->x + border_x + width_inner,
531 gd->y + gi->height - border_y,
533 gi->selectbox.x + box_width -border_x -button,
534 gi->selectbox.y + box_height - border_y);
536 /* bottom right part of gadget border */
537 BlitBitmapOnBackground(gd->bitmap, drawto,
538 gd->x + gi->border.width - border_x,
539 gd->y + gi->height - border_y,
541 gi->selectbox.x + box_width - border_x,
542 gi->selectbox.y + box_height - border_y);
544 ClearRectangleOnBackground(drawto,
545 gi->selectbox.x + border_x,
546 gi->selectbox.y + border_y,
547 gi->selectbox.width - 2 * border_x,
548 gi->selectbox.height - 2 * border_y);
550 /* selectbox text values */
551 for (i=0; i < gi->selectbox.num_values; i++)
553 int mask_mode = BLIT_MASKED;
555 strncpy(text, gi->selectbox.options[i].text, gi->selectbox.size);
556 text[gi->selectbox.size] = '\0';
558 if (i == gi->selectbox.current_index)
560 FillRectangle(drawto,
561 gi->selectbox.x + border_x,
562 gi->selectbox.y + border_y + i * font_height,
563 gi->selectbox.width - 2 * border_x, font_height,
564 gi->selectbox.inverse_color);
566 /* prevent use of cursor graphic by drawing at least two chars */
568 text[gi->selectbox.size] = '\0';
570 mask_mode = BLIT_INVERSE;
574 gi->selectbox.x + border_x,
575 gi->selectbox.y + border_y + i * font_height, text,
579 redraw_selectbox = TRUE;
581 else if (gi->selectbox.open)
583 gi->selectbox.open = FALSE;
585 /* restore background under selectbox */
586 BlitBitmap(gfx.field_save_buffer, drawto,
587 gi->selectbox.x, gi->selectbox.y,
588 gi->selectbox.width, gi->selectbox.height,
589 gi->selectbox.x, gi->selectbox.y);
591 /* redraw closed selectbox */
592 DrawGadget(gi, FALSE, FALSE);
594 redraw_selectbox = TRUE;
599 case GD_TYPE_SCROLLBAR_VERTICAL:
603 int ypos = gi->y + gi->scrollbar.position;
604 int design_full = gi->width;
605 int design_body = design_full - 2 * gi->border.ysize;
606 int size_full = gi->scrollbar.size;
607 int size_body = size_full - 2 * gi->border.ysize;
608 int num_steps = size_body / design_body;
609 int step_size_remain = size_body - num_steps * design_body;
611 /* clear scrollbar area */
612 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
613 gi->width, gi->height);
615 /* upper part of gadget */
616 BlitBitmapOnBackground(gd->bitmap, drawto,
618 gi->width, gi->border.ysize,
621 /* middle part of gadget */
622 for (i=0; i < num_steps; i++)
623 BlitBitmapOnBackground(gd->bitmap, drawto,
624 gd->x, gd->y + gi->border.ysize,
625 gi->width, design_body,
627 ypos + gi->border.ysize + i * design_body);
629 /* remaining middle part of gadget */
630 if (step_size_remain > 0)
631 BlitBitmapOnBackground(gd->bitmap, drawto,
632 gd->x, gd->y + gi->border.ysize,
633 gi->width, step_size_remain,
635 ypos + gi->border.ysize
636 + num_steps * design_body);
638 /* lower part of gadget */
639 BlitBitmapOnBackground(gd->bitmap, drawto,
640 gd->x, gd->y + design_full - gi->border.ysize,
641 gi->width, gi->border.ysize,
642 xpos, ypos + size_full - gi->border.ysize);
646 case GD_TYPE_SCROLLBAR_HORIZONTAL:
649 int xpos = gi->x + gi->scrollbar.position;
651 int design_full = gi->height;
652 int design_body = design_full - 2 * gi->border.xsize;
653 int size_full = gi->scrollbar.size;
654 int size_body = size_full - 2 * gi->border.xsize;
655 int num_steps = size_body / design_body;
656 int step_size_remain = size_body - num_steps * design_body;
658 /* clear scrollbar area */
659 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
660 gi->width, gi->height);
662 /* left part of gadget */
663 BlitBitmapOnBackground(gd->bitmap, drawto,
665 gi->border.xsize, gi->height,
668 /* middle part of gadget */
669 for (i=0; i < num_steps; i++)
670 BlitBitmapOnBackground(gd->bitmap, drawto,
671 gd->x + gi->border.xsize, gd->y,
672 design_body, gi->height,
673 xpos + gi->border.xsize + i * design_body,
676 /* remaining middle part of gadget */
677 if (step_size_remain > 0)
678 BlitBitmapOnBackground(gd->bitmap, drawto,
679 gd->x + gi->border.xsize, gd->y,
680 step_size_remain, gi->height,
681 xpos + gi->border.xsize
682 + num_steps * design_body,
685 /* right part of gadget */
686 BlitBitmapOnBackground(gd->bitmap, drawto,
687 gd->x + design_full - gi->border.xsize, gd->y,
688 gi->border.xsize, gi->height,
689 xpos + size_full - gi->border.xsize, ypos);
699 BlitBitmap(drawto, window,
700 gi->x, gi->y, gi->width, gi->height, gi->x, gi->y);
702 if (gi->type == GD_TYPE_SELECTBOX && redraw_selectbox)
703 BlitBitmap(drawto, window,
704 gi->selectbox.x, gi->selectbox.y,
705 gi->selectbox.width, gi->selectbox.height,
706 gi->selectbox.x, gi->selectbox.y);
714 redraw_mask |= (IN_GFX_FIELD_FULL(x, y) ? REDRAW_FIELD :
715 IN_GFX_DOOR_1(x, y) ? REDRAW_DOOR_1 :
716 IN_GFX_DOOR_2(x, y) ? REDRAW_DOOR_2 :
717 IN_GFX_DOOR_3(x, y) ? REDRAW_DOOR_3 : REDRAW_ALL);
719 redraw_mask |= (gi->x < gfx.sx + gfx.sxsize ? REDRAW_FIELD :
720 gi->y < gfx.dy + gfx.dysize ? REDRAW_DOOR_1 :
721 gi->y > gfx.vy ? REDRAW_DOOR_2 : REDRAW_DOOR_3);
726 static int get_minimal_size_for_numeric_input(int minmax_value)
728 int min_size = 1; /* value needs at least one digit */
731 /* add number of digits needed for absolute value */
732 for (i = 10; i <= ABS(minmax_value); i *= 10)
735 /* if min/max value is negative, add one digit for minus sign */
736 if (minmax_value < 0)
742 static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
749 while (tag != GDI_END)
754 gi->custom_id = va_arg(ap, int);
757 case GDI_CUSTOM_TYPE_ID:
758 gi->custom_type_id = va_arg(ap, int);
763 int max_textsize = MAX_INFO_TEXTSIZE;
764 char *text = va_arg(ap, char *);
767 strncpy(gi->info_text, text, max_textsize);
771 gi->info_text[max_textsize] = '\0';
776 gi->x = va_arg(ap, int);
780 gi->y = va_arg(ap, int);
784 gi->width = va_arg(ap, int);
788 gi->height = va_arg(ap, int);
792 gi->type = va_arg(ap, unsigned int);
796 gi->state = va_arg(ap, unsigned int);
800 gi->active = (boolean)va_arg(ap, int);
803 case GDI_DIRECT_DRAW:
804 gi->direct_draw = (boolean)va_arg(ap, int);
808 gi->checked = (boolean)va_arg(ap, int);
812 gi->radio_nr = va_arg(ap, unsigned int);
815 case GDI_NUMBER_VALUE:
816 gi->textinput.number_value = va_arg(ap, int);
817 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
818 strcpy(gi->textinput.last_value, gi->textinput.value);
819 gi->textinput.cursor_position = strlen(gi->textinput.value);
823 gi->textinput.number_min = va_arg(ap, int);
824 if (gi->textinput.number_value < gi->textinput.number_min)
826 gi->textinput.number_value = gi->textinput.number_min;
827 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
828 strcpy(gi->textinput.last_value, gi->textinput.value);
833 gi->textinput.number_max = va_arg(ap, int);
834 if (gi->textinput.number_value > gi->textinput.number_max)
836 gi->textinput.number_value = gi->textinput.number_max;
837 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
838 strcpy(gi->textinput.last_value, gi->textinput.value);
844 int max_textsize = MAX_GADGET_TEXTSIZE;
846 if (gi->textinput.size)
847 max_textsize = MIN(gi->textinput.size, MAX_GADGET_TEXTSIZE);
849 strncpy(gi->textinput.value, va_arg(ap, char *), max_textsize);
850 strcpy(gi->textinput.last_value, gi->textinput.value);
852 gi->textinput.value[max_textsize] = '\0';
853 gi->textinput.cursor_position = strlen(gi->textinput.value);
855 /* same tag also used for other gadget definitions */
856 strcpy(gi->textbutton.value, gi->textinput.value);
857 strcpy(gi->textarea.value, gi->textinput.value);
858 strcpy(gi->textarea.last_value, gi->textinput.value);
864 int tag_value = va_arg(ap, int);
865 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE);
867 gi->textinput.size = max_textsize;
868 gi->textinput.value[max_textsize] = '\0';
869 strcpy(gi->textinput.last_value, gi->textinput.value);
871 /* same tag also used for other gadget definitions */
873 gi->textarea.size = max_textsize;
874 gi->textarea.value[max_textsize] = '\0';
875 strcpy(gi->textarea.last_value, gi->textinput.value);
877 gi->textbutton.size = max_textsize;
878 gi->textbutton.value[max_textsize] = '\0';
880 gi->selectbox.size = gi->textinput.size;
885 gi->font = va_arg(ap, int);
886 if (gi->font_active == 0)
887 gi->font_active = gi->font;
890 case GDI_TEXT_FONT_ACTIVE:
891 gi->font_active = va_arg(ap, int);
894 case GDI_SELECTBOX_OPTIONS:
895 gi->selectbox.options = va_arg(ap, struct ValueTextInfo *);
898 case GDI_SELECTBOX_INDEX:
899 gi->selectbox.index = va_arg(ap, int);
902 case GDI_DESIGN_UNPRESSED:
903 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
904 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
905 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
908 case GDI_DESIGN_PRESSED:
909 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
910 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
911 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
914 case GDI_ALT_DESIGN_UNPRESSED:
915 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
916 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
917 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
920 case GDI_ALT_DESIGN_PRESSED:
921 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
922 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
923 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
926 case GDI_BORDER_SIZE:
927 gi->border.xsize = va_arg(ap, int);
928 gi->border.ysize = va_arg(ap, int);
931 case GDI_BORDER_SIZE_SELECTBUTTON:
932 gi->border.xsize_selectbutton = va_arg(ap, int);
935 case GDI_DESIGN_WIDTH:
936 gi->border.width = va_arg(ap, int);
939 case GDI_DECORATION_DESIGN:
940 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
941 gi->deco.design.x = va_arg(ap, int);
942 gi->deco.design.y = va_arg(ap, int);
945 case GDI_DECORATION_POSITION:
946 gi->deco.x = va_arg(ap, int);
947 gi->deco.y = va_arg(ap, int);
950 case GDI_DECORATION_SIZE:
951 gi->deco.width = va_arg(ap, int);
952 gi->deco.height = va_arg(ap, int);
955 case GDI_DECORATION_SHIFTING:
956 gi->deco.xshift = va_arg(ap, int);
957 gi->deco.yshift = va_arg(ap, int);
961 gi->event_mask = va_arg(ap, unsigned int);
965 gi->drawing.area_xsize = va_arg(ap, int);
966 gi->drawing.area_ysize = va_arg(ap, int);
968 /* determine dependent values for drawing area gadget, if needed */
969 if (gi->width == 0 && gi->height == 0 &&
970 gi->drawing.item_xsize !=0 && gi->drawing.item_ysize !=0)
972 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
973 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
975 else if (gi->drawing.item_xsize == 0 && gi->drawing.item_ysize == 0 &&
976 gi->width != 0 && gi->height != 0)
978 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
979 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
982 /* same tag also used for other gadget definitions */
983 gi->textarea.xsize = gi->drawing.area_xsize;
984 gi->textarea.ysize = gi->drawing.area_ysize;
986 if (gi->type & GD_TYPE_TEXT_AREA) /* force recalculation */
995 gi->drawing.item_xsize = va_arg(ap, int);
996 gi->drawing.item_ysize = va_arg(ap, int);
998 /* determine dependent values for drawing area gadget, if needed */
999 if (gi->width == 0 && gi->height == 0 &&
1000 gi->drawing.area_xsize !=0 && gi->drawing.area_ysize !=0)
1002 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
1003 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
1005 else if (gi->drawing.area_xsize == 0 && gi->drawing.area_ysize == 0 &&
1006 gi->width != 0 && gi->height != 0)
1008 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
1009 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
1013 case GDI_SCROLLBAR_ITEMS_MAX:
1014 gi->scrollbar.items_max = va_arg(ap, int);
1017 case GDI_SCROLLBAR_ITEMS_VISIBLE:
1018 gi->scrollbar.items_visible = va_arg(ap, int);
1021 case GDI_SCROLLBAR_ITEM_POSITION:
1022 gi->scrollbar.item_position = va_arg(ap, int);
1025 case GDI_WHEEL_AREA_X:
1026 gi->wheelarea.x = va_arg(ap, int);
1029 case GDI_WHEEL_AREA_Y:
1030 gi->wheelarea.y = va_arg(ap, int);
1033 case GDI_WHEEL_AREA_WIDTH:
1034 gi->wheelarea.width = va_arg(ap, int);
1037 case GDI_WHEEL_AREA_HEIGHT:
1038 gi->wheelarea.height = va_arg(ap, int);
1041 case GDI_CALLBACK_INFO:
1042 gi->callback_info = va_arg(ap, gadget_function);
1045 case GDI_CALLBACK_ACTION:
1046 gi->callback_action = va_arg(ap, gadget_function);
1050 Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
1053 tag = va_arg(ap, int); /* read next tag */
1056 /* check if gadget is complete */
1057 if (gi->type != GD_TYPE_DRAWING_AREA &&
1058 (!gi->design[GD_BUTTON_UNPRESSED].bitmap ||
1059 !gi->design[GD_BUTTON_PRESSED].bitmap))
1060 Error(ERR_EXIT, "gadget incomplete (missing Bitmap)");
1062 /* adjust gadget values in relation to other gadget values */
1064 if (gi->type & GD_TYPE_TEXT_INPUT)
1066 int font_nr = gi->font_active;
1067 int font_width = getFontWidth(font_nr);
1068 int font_height = getFontHeight(font_nr);
1069 int border_xsize = gi->border.xsize;
1070 int border_ysize = gi->border.ysize;
1072 if (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC)
1074 int number_min = gi->textinput.number_min;
1075 int number_max = gi->textinput.number_max;
1076 int min_size_min = get_minimal_size_for_numeric_input(number_min);
1077 int min_size_max = get_minimal_size_for_numeric_input(number_max);
1078 int min_size = MAX(min_size_min, min_size_max);
1080 /* expand gadget text input size, if maximal value is too large */
1081 if (gi->textinput.size < min_size)
1082 gi->textinput.size = min_size;
1085 gi->width = 2 * border_xsize + (gi->textinput.size + 1) * font_width;
1086 gi->height = 2 * border_ysize + font_height;
1089 if (gi->type & GD_TYPE_SELECTBOX)
1091 int font_nr = gi->font_active;
1092 int font_width = getFontWidth(font_nr);
1093 int font_height = getFontHeight(font_nr);
1094 int border_xsize = gi->border.xsize;
1095 int border_ysize = gi->border.ysize;
1096 int button_size = gi->border.xsize_selectbutton;
1097 int bottom_screen_border = gfx.sy + gfx.sysize - font_height;
1101 gi->width = 2 * border_xsize + gi->textinput.size*font_width +button_size;
1102 gi->height = 2 * border_ysize + font_height;
1104 if (gi->selectbox.options == NULL)
1105 Error(ERR_EXIT, "selectbox gadget incomplete (missing options array)");
1107 gi->selectbox.num_values = 0;
1108 while (gi->selectbox.options[gi->selectbox.num_values].text != NULL)
1109 gi->selectbox.num_values++;
1111 /* calculate values for open selectbox */
1112 gi->selectbox.width = gi->width;
1113 gi->selectbox.height =
1114 2 * border_ysize + gi->selectbox.num_values * font_height;
1116 gi->selectbox.x = gi->x;
1117 gi->selectbox.y = gi->y + gi->height;
1118 if (gi->selectbox.y + gi->selectbox.height > bottom_screen_border)
1119 gi->selectbox.y = gi->y - gi->selectbox.height;
1120 if (gi->selectbox.y < 0)
1121 gi->selectbox.y = bottom_screen_border - gi->selectbox.height;
1123 getFontCharSource(font_nr, FONT_ASCII_CURSOR, &src_bitmap, &src_x, &src_y);
1124 src_x += font_width / 2;
1125 src_y += font_height / 2;
1127 /* there may be esoteric cases with missing or too small font bitmap */
1128 if (src_bitmap != NULL &&
1129 src_x < src_bitmap->width && src_y < src_bitmap->height)
1130 gi->selectbox.inverse_color = GetPixel(src_bitmap, src_x, src_y);
1132 /* always start with closed selectbox */
1133 gi->selectbox.open = FALSE;
1136 if (gi->type & GD_TYPE_TEXT_INPUT_NUMERIC)
1138 struct GadgetTextInput *text = &gi->textinput;
1139 int value = text->number_value;
1141 text->number_value = (value < text->number_min ? text->number_min :
1142 value > text->number_max ? text->number_max :
1145 sprintf(text->value, "%d", text->number_value);
1148 if (gi->type & GD_TYPE_TEXT_BUTTON)
1150 int font_nr = gi->font_active;
1151 int font_width = getFontWidth(font_nr);
1152 int font_height = getFontHeight(font_nr);
1153 int border_xsize = gi->border.xsize;
1154 int border_ysize = gi->border.ysize;
1156 gi->width = 2 * border_xsize + gi->textbutton.size * font_width;
1157 gi->height = 2 * border_ysize + font_height;
1160 if (gi->type & GD_TYPE_SCROLLBAR)
1162 struct GadgetScrollbar *gs = &gi->scrollbar;
1163 int scrollbar_size_cmp;
1165 if (gi->width == 0 || gi->height == 0 ||
1166 gs->items_max == 0 || gs->items_visible == 0)
1167 Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
1169 /* calculate internal scrollbar values */
1170 gs->size_min = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1171 gi->width : gi->height);
1172 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1173 gi->height : gi->width);
1175 scrollbar_size_cmp = gs->size_max * gs->items_visible / gs->items_max;
1176 gs->size = MAX(scrollbar_size_cmp, gs->size_min);
1177 gs->size_max_cmp = (gs->size_max - (gs->size - scrollbar_size_cmp));
1179 gs->position = gs->size_max_cmp * gs->item_position / gs->items_max;
1180 gs->position_max = gs->size_max - gs->size;
1181 gs->correction = gs->size_max / gs->items_max / 2;
1183 /* finetuning for maximal right/bottom position */
1184 if (gs->item_position == gs->items_max - gs->items_visible)
1185 gs->position = gs->position_max;
1188 if (gi->type & GD_TYPE_TEXT_AREA)
1190 int font_nr = gi->font_active;
1191 int font_width = getFontWidth(font_nr);
1192 int font_height = getFontHeight(font_nr);
1193 int border_xsize = gi->border.xsize;
1194 int border_ysize = gi->border.ysize;
1196 if (gi->width == 0 || gi->height == 0)
1198 gi->width = 2 * border_xsize + gi->textarea.xsize * font_width;
1199 gi->height = 2 * border_ysize + gi->textarea.ysize * font_height;
1203 gi->textarea.xsize = (gi->width - 2 * border_xsize) / font_width;
1204 gi->textarea.ysize = (gi->height - 2 * border_ysize) / font_height;
1209 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
1213 va_start(ap, first_tag);
1214 HandleGadgetTags(gi, first_tag, ap);
1220 void RedrawGadget(struct GadgetInfo *gi)
1226 DrawGadget(gi, gi->state, gi->direct_draw);
1229 struct GadgetInfo *CreateGadget(int first_tag, ...)
1231 struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
1234 /* always start with reliable default values */
1235 new_gadget->id = getNewGadgetID();
1236 new_gadget->callback_info = default_callback_info;
1237 new_gadget->callback_action = default_callback_action;
1238 new_gadget->active = TRUE;
1239 new_gadget->direct_draw = TRUE;
1241 new_gadget->next = NULL;
1243 va_start(ap, first_tag);
1244 HandleGadgetTags(new_gadget, first_tag, ap);
1247 /* insert new gadget into global gadget list */
1248 if (gadget_list_last_entry)
1250 gadget_list_last_entry->next = new_gadget;
1251 gadget_list_last_entry = gadget_list_last_entry->next;
1254 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
1259 void FreeGadget(struct GadgetInfo *gi)
1261 struct GadgetInfo *gi_previous = gadget_list_first_entry;
1263 /* prevent "last_info_gi" from pointing to memory that will be freed */
1264 if (last_info_gi == gi)
1265 last_info_gi = NULL;
1267 while (gi_previous != NULL && gi_previous->next != gi)
1268 gi_previous = gi_previous->next;
1270 if (gi == gadget_list_first_entry)
1271 gadget_list_first_entry = gi->next;
1273 if (gi == gadget_list_last_entry)
1274 gadget_list_last_entry = gi_previous;
1276 if (gi_previous != NULL)
1277 gi_previous->next = gi->next;
1282 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
1284 if (gi->type != GD_TYPE_TEXT_INPUT_NUMERIC)
1287 gi->textinput.number_value = atoi(gi->textinput.value);
1289 if (gi->textinput.number_value < gi->textinput.number_min)
1290 gi->textinput.number_value = gi->textinput.number_min;
1291 if (gi->textinput.number_value > gi->textinput.number_max)
1292 gi->textinput.number_value = gi->textinput.number_max;
1294 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
1296 if (gi->textinput.cursor_position < 0)
1297 gi->textinput.cursor_position = 0;
1298 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1299 gi->textinput.cursor_position = strlen(gi->textinput.value);
1302 /* global pointer to gadget actually in use (when mouse button pressed) */
1303 static struct GadgetInfo *last_gi = NULL;
1305 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
1307 if (gi == NULL || gi->mapped)
1313 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
1316 void MapGadget(struct GadgetInfo *gi)
1318 MapGadgetExt(gi, TRUE);
1321 void UnmapGadget(struct GadgetInfo *gi)
1323 if (gi == NULL || !gi->mapped)
1332 #define MAX_NUM_GADGETS 1024
1333 #define MULTIMAP_UNMAP (1 << 0)
1334 #define MULTIMAP_REMAP (1 << 1)
1335 #define MULTIMAP_REDRAW (1 << 2)
1336 #define MULTIMAP_PLAYFIELD (1 << 3)
1337 #define MULTIMAP_DOOR_1 (1 << 4)
1338 #define MULTIMAP_DOOR_2 (1 << 5)
1339 #define MULTIMAP_DOOR_3 (1 << 6)
1340 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
1345 static void MultiMapGadgets(int mode)
1347 struct GadgetInfo *gi = gadget_list_first_entry;
1348 static boolean map_state[MAX_NUM_GADGETS];
1357 if ((mode & MULTIMAP_PLAYFIELD && IN_GFX_FIELD_FULL(x, y)) ||
1358 (mode & MULTIMAP_DOOR_1 && IN_GFX_DOOR_1(x, y)) ||
1359 (mode & MULTIMAP_DOOR_2 && IN_GFX_DOOR_2(x, y)) ||
1360 (mode & MULTIMAP_DOOR_3 && IN_GFX_DOOR_3(x, y)) ||
1361 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
1363 if ((mode & MULTIMAP_PLAYFIELD &&
1364 gi->x < gfx.sx + gfx.sxsize) ||
1365 (mode & MULTIMAP_DOOR_1 &&
1366 gi->x >= gfx.dx && gi->y < gfx.dy + gfx.dysize) ||
1367 (mode & MULTIMAP_DOOR_2 &&
1368 gi->x >= gfx.dx && gi->y > gfx.dy + gfx.dysize) ||
1369 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
1372 if (mode & MULTIMAP_UNMAP)
1374 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
1379 if (map_state[map_count++ % MAX_NUM_GADGETS])
1380 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
1388 void UnmapAllGadgets()
1390 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
1393 void RemapAllGadgets()
1395 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
1398 boolean anyTextInputGadgetActive()
1400 return (last_gi && (last_gi->type & GD_TYPE_TEXT_INPUT) && last_gi->mapped);
1403 boolean anyTextAreaGadgetActive()
1405 return (last_gi && (last_gi->type & GD_TYPE_TEXT_AREA) && last_gi->mapped);
1408 boolean anySelectboxGadgetActive()
1410 return (last_gi && (last_gi->type & GD_TYPE_SELECTBOX) && last_gi->mapped);
1413 boolean anyScrollbarGadgetActive()
1415 return (last_gi && (last_gi->type & GD_TYPE_SCROLLBAR) && last_gi->mapped);
1418 boolean anyTextGadgetActive()
1420 return (anyTextInputGadgetActive() ||
1421 anyTextAreaGadgetActive() ||
1422 anySelectboxGadgetActive());
1425 static boolean insideSelectboxLine(struct GadgetInfo *gi, int mx, int my)
1427 return (gi != NULL &&
1428 gi->type & GD_TYPE_SELECTBOX &&
1429 mx >= gi->x && mx < gi->x + gi->width &&
1430 my >= gi->y && my < gi->y + gi->height);
1433 static boolean insideSelectboxArea(struct GadgetInfo *gi, int mx, int my)
1435 return (gi != NULL &&
1436 gi->type & GD_TYPE_SELECTBOX &&
1437 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
1438 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height);
1441 void ClickOnGadget(struct GadgetInfo *gi, int button)
1446 /* simulate releasing mouse button over last gadget, if still pressed */
1448 HandleGadgets(-1, -1, 0);
1450 /* simulate pressing mouse button over specified gadget */
1451 HandleGadgets(gi->x, gi->y, button);
1453 /* simulate releasing mouse button over specified gadget */
1454 HandleGadgets(gi->x, gi->y, 0);
1457 boolean HandleGadgets(int mx, int my, int button)
1459 static unsigned int pressed_delay = 0;
1460 static unsigned int pressed_delay_value = GADGET_FRAME_DELAY;
1461 static int last_button = 0;
1462 static int last_mx = 0, last_my = 0;
1463 static int pressed_mx = 0, pressed_my = 0;
1464 static boolean keep_selectbox_open = FALSE;
1465 static boolean gadget_stopped = FALSE;
1466 int scrollbar_mouse_pos = 0;
1467 struct GadgetInfo *new_gi, *gi;
1468 boolean press_event;
1469 boolean release_event;
1470 boolean mouse_moving;
1471 boolean mouse_inside_select_line;
1472 boolean mouse_inside_select_area;
1473 boolean mouse_released_where_pressed;
1474 boolean gadget_pressed;
1475 boolean gadget_pressed_repeated;
1476 boolean gadget_pressed_off_borders;
1477 boolean gadget_pressed_inside_select_line;
1478 boolean gadget_pressed_delay_reached;
1479 boolean gadget_moving;
1480 boolean gadget_moving_inside;
1481 boolean gadget_moving_off_borders;
1482 boolean gadget_draggable;
1483 boolean gadget_dragging;
1484 boolean gadget_released;
1485 boolean gadget_released_inside;
1487 boolean gadget_released_inside_select_line;
1489 boolean gadget_released_inside_select_area;
1490 boolean gadget_released_off_borders;
1491 boolean changed_position = FALSE;
1493 /* check if there are any gadgets defined */
1494 if (gadget_list_first_entry == NULL)
1497 /* simulated release of mouse button over last gadget */
1498 if (mx == -1 && my == -1 && button == 0)
1504 /* check which gadget is under the mouse pointer */
1505 new_gi = getGadgetInfoFromMousePosition(mx, my, button);
1507 /* check if button state has changed since last invocation */
1508 press_event = (button != 0 && last_button == 0);
1509 release_event = (button == 0 && last_button != 0);
1510 last_button = button;
1512 /* check if mouse has been moved since last invocation */
1513 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
1517 if (press_event && new_gi != last_gi)
1523 mouse_released_where_pressed =
1524 (release_event && mx == pressed_mx && my == pressed_my);
1526 mouse_inside_select_line = insideSelectboxLine(new_gi, mx, my);
1527 mouse_inside_select_area = insideSelectboxArea(new_gi, mx, my);
1529 gadget_pressed_off_borders = (press_event && new_gi != last_gi);
1531 gadget_pressed_inside_select_line =
1532 (press_event && new_gi != NULL &&
1533 new_gi->type & GD_TYPE_SELECTBOX && new_gi->selectbox.open &&
1534 insideSelectboxLine(new_gi, mx, my));
1536 /* if mouse button pressed outside text or selectbox gadget, deactivate it */
1537 if (anyTextGadgetActive() &&
1538 (gadget_pressed_off_borders ||
1539 (gadget_pressed_inside_select_line && !mouse_inside_select_area)))
1541 struct GadgetInfo *gi = last_gi;
1542 boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_LEAVING) != 0);
1544 /* check if text gadget has changed its value */
1545 if (gi->type & GD_TYPE_TEXT_INPUT)
1547 CheckRangeOfNumericInputGadget(gi);
1549 if (!strEqual(gi->textinput.last_value, gi->textinput.value))
1550 strcpy(gi->textinput.last_value, gi->textinput.value);
1552 gadget_changed = FALSE;
1555 /* selectbox does not change its value when closed by clicking outside */
1556 if (gi->type & GD_TYPE_SELECTBOX)
1557 gadget_changed = FALSE;
1559 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1561 gi->event.type = GD_EVENT_TEXT_LEAVING;
1563 if (gadget_changed && !(gi->type & GD_TYPE_SELECTBOX))
1564 gi->callback_action(gi);
1568 if (gadget_pressed_inside_select_line)
1573 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
1574 gadget_pressed_repeated =
1575 (button != 0 && last_gi != NULL && new_gi == last_gi);
1577 gadget_pressed_delay_reached =
1578 DelayReached(&pressed_delay, pressed_delay_value);
1580 gadget_released = (release_event && last_gi != NULL);
1581 gadget_released_inside = (gadget_released && new_gi == last_gi);
1582 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
1584 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
1585 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
1586 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
1588 /* when handling selectbox, set additional state values */
1589 if (gadget_released_inside && (last_gi->type & GD_TYPE_SELECTBOX))
1592 gadget_released_inside_select_line = insideSelectboxLine(last_gi, mx, my);
1594 gadget_released_inside_select_area = insideSelectboxArea(last_gi, mx, my);
1599 gadget_released_inside_select_line = FALSE;
1601 gadget_released_inside_select_area = FALSE;
1604 /* setting state for handling over-large selectbox */
1605 if (keep_selectbox_open && (press_event || !mouse_inside_select_line))
1606 keep_selectbox_open = FALSE;
1608 /* if new gadget pressed, store this gadget */
1612 /* 'gi' is actually handled gadget */
1615 /* if gadget is scrollbar, choose mouse position value */
1616 if (gi && gi->type & GD_TYPE_SCROLLBAR)
1617 scrollbar_mouse_pos =
1618 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
1620 /* if mouse button released, no gadget needs to be handled anymore */
1621 if (gadget_released)
1623 if (gi->type & GD_TYPE_SELECTBOX &&
1624 (keep_selectbox_open ||
1625 mouse_released_where_pressed ||
1626 !gadget_released_inside_select_area)) /* selectbox stays open */
1628 gi->selectbox.stay_open = TRUE;
1632 else if (!(gi->type & GD_TYPE_TEXT_INPUT ||
1633 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1637 /* modify event position values even if no gadget is pressed */
1638 if (button == 0 && !release_event)
1641 /* if new gadget or if no gadget was pressed, release stopped processing */
1642 if (gadget_pressed || new_gi == NULL)
1643 gadget_stopped = FALSE;
1645 /* if gadget was stopped while being handled, stop gadget processing here */
1651 int last_x = gi->event.x;
1652 int last_y = gi->event.y;
1654 gi->event.x = mx - gi->x;
1655 gi->event.y = my - gi->y;
1657 if (gi->type == GD_TYPE_DRAWING_AREA)
1659 gi->event.x /= gi->drawing.item_xsize;
1660 gi->event.y /= gi->drawing.item_ysize;
1662 if (last_x != gi->event.x || last_y != gi->event.y)
1663 changed_position = TRUE;
1665 else if (gi->type & GD_TYPE_TEXT_INPUT && button != 0 && !motion_status)
1667 int old_cursor_position = gi->textinput.cursor_position;
1669 /* if mouse button pressed inside activated text gadget, set cursor */
1670 gi->textinput.cursor_position =
1671 (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1673 if (gi->textinput.cursor_position < 0)
1674 gi->textinput.cursor_position = 0;
1675 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1676 gi->textinput.cursor_position = strlen(gi->textinput.value);
1678 if (gi->textinput.cursor_position != old_cursor_position)
1679 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1681 else if (gi->type & GD_TYPE_TEXT_AREA && button != 0 && !motion_status)
1683 int old_cursor_position = gi->textarea.cursor_position;
1684 int x = (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1685 int y = (my - gi->y - gi->border.ysize) / getFontHeight(gi->font);
1687 x = (x < 0 ? 0 : x >= gi->textarea.xsize ? gi->textarea.xsize - 1 : x);
1688 y = (y < 0 ? 0 : y >= gi->textarea.ysize ? gi->textarea.ysize - 1 : y);
1690 setTextAreaCursorXY(gi, x, y);
1692 if (gi->textarea.cursor_position != old_cursor_position)
1693 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1695 else if (gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
1696 !keep_selectbox_open)
1698 int old_index = gi->selectbox.current_index;
1700 /* if mouse moving inside activated selectbox, select value */
1701 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1702 gi->selectbox.current_index =
1703 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1705 if (gi->selectbox.current_index < 0)
1706 gi->selectbox.current_index = 0;
1707 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1708 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1710 if (gi->selectbox.current_index != old_index)
1711 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1715 /* handle gadget popup info text */
1716 if (last_info_gi != new_gi ||
1717 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
1719 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
1721 new_gi->event.type = GD_EVENT_INFO_ENTERING;
1722 new_gi->callback_info(new_gi);
1724 else if (last_info_gi != NULL)
1726 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
1727 last_info_gi->callback_info(last_info_gi);
1730 last_info_gi = new_gi;
1733 gadget_draggable = (gi && gi->type & GD_TYPE_SCROLLBAR);
1735 /* reset drag position for newly pressed scrollbar to "not dragging" */
1736 if (gadget_pressed && gadget_draggable)
1737 gi->scrollbar.drag_position = -1;
1739 gadget_dragging = (gadget_draggable && gi->scrollbar.drag_position != -1);
1741 /* clicking next to a scrollbar to move it is not considered "moving" */
1742 if (gadget_draggable && !gadget_dragging)
1743 gadget_moving = FALSE;
1745 /* when leaving scrollbar area when jump-scrolling, stop gadget processing */
1746 if (gadget_draggable && !gadget_dragging && gadget_moving_off_borders)
1747 gadget_stopped = TRUE;
1749 if ((gadget_pressed) ||
1750 (gadget_pressed_repeated && gadget_pressed_delay_reached))
1752 if (gadget_pressed) /* gadget pressed the first time */
1754 /* initialize delay counter */
1755 DelayReached(&pressed_delay, 0);
1757 /* start gadget delay with longer delay after first click on gadget */
1758 pressed_delay_value = GADGET_FRAME_DELAY_FIRST;
1760 else /* gadget hold pressed for some time */
1762 /* after first repeated gadget click, continue with shorter delay value */
1763 pressed_delay_value = GADGET_FRAME_DELAY;
1766 if (gi->type & GD_TYPE_SCROLLBAR && !gadget_dragging)
1768 int mpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx : my);
1769 int gpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? gi->x : gi->y);
1770 int slider_start = gpos + gi->scrollbar.position;
1771 int slider_end = gpos + gi->scrollbar.position + gi->scrollbar.size - 1;
1772 boolean inside_slider = (mpos >= slider_start && mpos <= slider_end);
1774 if (IS_WHEEL_BUTTON(button) || !inside_slider)
1776 /* click scrollbar one scrollbar length up/left or down/right */
1778 struct GadgetScrollbar *gs = &gi->scrollbar;
1779 int old_item_position = gs->item_position;
1780 int item_steps = gs->items_visible - 1;
1781 int item_direction = (mpos < gpos + gi->scrollbar.position ? -1 : +1);
1783 if (IS_WHEEL_BUTTON(button))
1785 boolean scroll_single_step = ((GetKeyModState() & KMOD_Alt) != 0);
1787 item_steps = (scroll_single_step ? 1 : DEFAULT_WHEEL_STEPS);
1788 item_direction = (button == MB_WHEEL_UP ||
1789 button == MB_WHEEL_LEFT ? -1 : +1);
1792 changed_position = FALSE;
1794 gs->item_position += item_steps * item_direction;
1796 if (gs->item_position < 0)
1797 gs->item_position = 0;
1798 else if (gs->item_position > gs->items_max - gs->items_visible)
1799 gs->item_position = gs->items_max - gs->items_visible;
1801 if (old_item_position != gs->item_position)
1803 gi->event.item_position = gs->item_position;
1804 changed_position = TRUE;
1807 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
1810 gi->state = GD_BUTTON_UNPRESSED;
1811 gi->event.type = GD_EVENT_MOVING;
1812 gi->event.off_borders = FALSE;
1814 if (gi->event_mask & GD_EVENT_MOVING && changed_position)
1815 gi->callback_action(gi);
1821 /* don't handle this scrollbar anymore when mouse position reached */
1822 if (gadget_pressed_repeated)
1824 gadget_stopped = TRUE;
1834 PlayGadgetSoundActivating();
1836 if (gi->type == GD_TYPE_CHECK_BUTTON)
1838 gi->checked = !gi->checked;
1840 else if (gi->type == GD_TYPE_RADIO_BUTTON)
1842 struct GadgetInfo *rgi = gadget_list_first_entry;
1847 rgi->type == GD_TYPE_RADIO_BUTTON &&
1848 rgi->radio_nr == gi->radio_nr &&
1851 rgi->checked = FALSE;
1852 DrawGadget(rgi, DG_UNPRESSED, rgi->direct_draw);
1860 else if (gi->type & GD_TYPE_SCROLLBAR)
1862 int mpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx : my);
1863 int gpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? gi->x : gi->y);
1864 int slider_start = gpos + gi->scrollbar.position;
1865 int slider_end = gpos + gi->scrollbar.position + gi->scrollbar.size - 1;
1866 boolean inside_slider = (mpos >= slider_start && mpos <= slider_end);
1868 if (!IS_WHEEL_BUTTON(button) && inside_slider)
1870 /* start dragging scrollbar */
1871 gi->scrollbar.drag_position =
1872 scrollbar_mouse_pos - gi->scrollbar.position;
1875 else if (gi->type & GD_TYPE_SELECTBOX)
1877 /* keep selectbox open in case of over-large selectbox */
1878 keep_selectbox_open = (mouse_inside_select_line &&
1879 mouse_inside_select_area);
1882 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1884 gi->state = GD_BUTTON_PRESSED;
1885 gi->event.type = GD_EVENT_PRESSED;
1886 gi->event.button = button;
1887 gi->event.off_borders = FALSE;
1889 if (gi->event_mask & GD_EVENT_PRESSED)
1890 gi->callback_action(gi);
1893 if (gadget_pressed_repeated)
1895 gi->event.type = GD_EVENT_PRESSED;
1897 if (gi->event_mask & GD_EVENT_REPEATED && gadget_pressed_delay_reached)
1898 gi->callback_action(gi);
1903 if (gi->type & GD_TYPE_BUTTON)
1905 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
1906 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1907 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
1908 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1910 else if (gi->type & GD_TYPE_SELECTBOX && !keep_selectbox_open)
1912 int old_index = gi->selectbox.current_index;
1914 /* if mouse moving inside activated selectbox, select value */
1915 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1916 gi->selectbox.current_index =
1917 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1919 if (gi->selectbox.current_index < 0)
1920 gi->selectbox.current_index = 0;
1921 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1922 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1924 if (gi->selectbox.current_index != old_index)
1925 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1927 else if (gi->type & GD_TYPE_SCROLLBAR)
1929 struct GadgetScrollbar *gs = &gi->scrollbar;
1930 int old_item_position = gs->item_position;
1932 gs->position = scrollbar_mouse_pos - gs->drag_position;
1934 /* make sure to always precisely reach end positions when dragging */
1935 if (gs->position <= 0)
1938 gs->item_position = 0;
1940 else if (gs->position >= gs->position_max)
1942 gs->position = gs->position_max;
1943 gs->item_position = gs->items_max - gs->items_visible;
1948 gs->items_max * (gs->position + gs->correction) / gs->size_max_cmp;
1951 if (gs->item_position < 0)
1952 gs->item_position = 0;
1953 if (gs->item_position > gs->items_max - 1)
1954 gs->item_position = gs->items_max - 1;
1956 if (old_item_position != gs->item_position)
1958 gi->event.item_position = gs->item_position;
1959 changed_position = TRUE;
1962 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1965 gi->state = (gadget_moving_inside || gadget_draggable ?
1966 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
1967 gi->event.type = GD_EVENT_MOVING;
1968 gi->event.off_borders = gadget_moving_off_borders;
1970 if (gi->event_mask & GD_EVENT_MOVING && changed_position &&
1971 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
1972 gi->callback_action(gi);
1975 if (gadget_released_inside)
1977 boolean deactivate_gadget = TRUE;
1978 boolean gadget_changed = TRUE;
1980 if (gi->type & GD_TYPE_SELECTBOX)
1982 if (keep_selectbox_open ||
1983 mouse_released_where_pressed ||
1984 !gadget_released_inside_select_area) /* selectbox stays open */
1986 deactivate_gadget = FALSE;
1987 gadget_changed = FALSE;
1989 else if (gi->selectbox.index != gi->selectbox.current_index)
1990 gi->selectbox.index = gi->selectbox.current_index;
1992 gadget_changed = FALSE;
1995 if (deactivate_gadget &&
1996 !(gi->type & GD_TYPE_TEXT_INPUT ||
1997 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1998 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2000 gi->state = GD_BUTTON_UNPRESSED;
2001 gi->event.type = GD_EVENT_RELEASED;
2003 if ((gi->event_mask & GD_EVENT_RELEASED) && gadget_changed)
2005 gi->callback_action(gi);
2009 if (gadget_released_off_borders)
2011 if (gi->type & GD_TYPE_SCROLLBAR)
2012 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2014 gi->state = GD_BUTTON_UNPRESSED;
2015 gi->event.type = GD_EVENT_RELEASED;
2017 if (gi->event_mask & GD_EVENT_RELEASED &&
2018 gi->event_mask & GD_EVENT_OFF_BORDERS)
2019 gi->callback_action(gi);
2022 /* handle gadgets unmapped/mapped between pressing and releasing */
2023 if (release_event && !gadget_released && new_gi)
2024 new_gi->state = GD_BUTTON_UNPRESSED;
2026 return (gadget_pressed || gadget_pressed_repeated ||
2027 gadget_released || gadget_moving);
2030 static void insertCharIntoTextArea(struct GadgetInfo *gi, char c)
2032 char text[MAX_GADGET_TEXTSIZE + 1];
2033 int cursor_position = gi->textarea.cursor_position;
2035 if (strlen(gi->textarea.value) >= MAX_GADGET_TEXTSIZE) /* no space left */
2038 strcpy(text, gi->textarea.value);
2039 strcpy(&gi->textarea.value[cursor_position + 1], &text[cursor_position]);
2040 gi->textarea.value[cursor_position] = c;
2042 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2045 boolean HandleGadgetsKeyInput(Key key)
2047 struct GadgetInfo *gi = last_gi;
2049 if (gi == NULL || !gi->mapped ||
2050 !(gi->type & GD_TYPE_TEXT_INPUT ||
2051 gi->type & GD_TYPE_TEXT_AREA ||
2052 gi->type & GD_TYPE_SELECTBOX))
2055 if (key == KSYM_Return) /* valid for both text input and selectbox */
2057 boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_RETURN) != 0);
2059 if (gi->type & GD_TYPE_TEXT_INPUT)
2061 CheckRangeOfNumericInputGadget(gi);
2063 if (!strEqual(gi->textinput.last_value, gi->textinput.value))
2064 strcpy(gi->textinput.last_value, gi->textinput.value);
2066 gadget_changed = FALSE;
2068 else if (gi->type & GD_TYPE_SELECTBOX)
2070 if (gi->selectbox.index != gi->selectbox.current_index)
2071 gi->selectbox.index = gi->selectbox.current_index;
2073 gadget_changed = FALSE;
2076 if (gi->type & GD_TYPE_TEXT_AREA)
2078 insertCharIntoTextArea(gi, '\n');
2080 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2084 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
2086 gi->event.type = GD_EVENT_TEXT_RETURN;
2092 gi->callback_action(gi);
2094 else if (gi->type & GD_TYPE_TEXT_INPUT) /* only valid for text input */
2096 char text[MAX_GADGET_TEXTSIZE + 1];
2097 int text_length = strlen(gi->textinput.value);
2098 int cursor_pos = gi->textinput.cursor_position;
2099 char letter = getCharFromKey(key);
2100 boolean legal_letter = (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC ?
2101 letter >= '0' && letter <= '9' :
2104 if (legal_letter && text_length < gi->textinput.size)
2106 strcpy(text, gi->textinput.value);
2107 strcpy(&gi->textinput.value[cursor_pos + 1], &text[cursor_pos]);
2108 gi->textinput.value[cursor_pos] = letter;
2109 gi->textinput.cursor_position++;
2111 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2113 else if (key == KSYM_Left && cursor_pos > 0)
2115 gi->textinput.cursor_position--;
2117 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2119 else if (key == KSYM_Right && cursor_pos < text_length)
2121 gi->textinput.cursor_position++;
2123 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2125 else if (key == KSYM_BackSpace && cursor_pos > 0)
2127 strcpy(text, gi->textinput.value);
2128 strcpy(&gi->textinput.value[cursor_pos - 1], &text[cursor_pos]);
2129 gi->textinput.cursor_position--;
2131 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2133 else if (key == KSYM_Delete && cursor_pos < text_length)
2135 strcpy(text, gi->textinput.value);
2136 strcpy(&gi->textinput.value[cursor_pos], &text[cursor_pos + 1]);
2138 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2141 else if (gi->type & GD_TYPE_TEXT_AREA) /* only valid for text area */
2143 char text[MAX_GADGET_TEXTSIZE + 1];
2144 int text_length = strlen(gi->textarea.value);
2145 int area_ysize = gi->textarea.ysize;
2146 int cursor_x_pref = gi->textarea.cursor_x_preferred;
2147 int cursor_y = gi->textarea.cursor_y;
2148 int cursor_pos = gi->textarea.cursor_position;
2149 char letter = getCharFromKey(key);
2150 boolean legal_letter = (letter != 0);
2154 insertCharIntoTextArea(gi, letter);
2156 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2158 else if (key == KSYM_Left && cursor_pos > 0)
2160 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2162 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2164 else if (key == KSYM_Right && cursor_pos < text_length)
2166 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2168 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2170 else if (key == KSYM_Up && cursor_y > 0)
2172 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y - 1);
2173 gi->textarea.cursor_x_preferred = cursor_x_pref;
2175 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2177 else if (key == KSYM_Down && cursor_y < area_ysize - 1)
2179 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y + 1);
2180 gi->textarea.cursor_x_preferred = cursor_x_pref;
2182 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2184 else if (key == KSYM_BackSpace && cursor_pos > 0)
2186 strcpy(text, gi->textarea.value);
2187 strcpy(&gi->textarea.value[cursor_pos - 1], &text[cursor_pos]);
2189 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2191 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2193 else if (key == KSYM_Delete && cursor_pos < text_length)
2195 strcpy(text, gi->textarea.value);
2196 strcpy(&gi->textarea.value[cursor_pos], &text[cursor_pos + 1]);
2198 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2201 else if (gi->type & GD_TYPE_SELECTBOX) /* only valid for selectbox */
2203 int index = gi->selectbox.current_index;
2204 int num_values = gi->selectbox.num_values;
2206 if (key == KSYM_Up && index > 0)
2208 gi->selectbox.current_index--;
2210 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2212 else if (key == KSYM_Down && index < num_values - 1)
2214 gi->selectbox.current_index++;
2216 DrawGadget(gi, DG_PRESSED, gi->direct_draw);