1 /***********************************************************
2 * Artsoft Retro-Game Library *
3 *----------------------------------------------------------*
4 * (c) 1994-2002 Artsoft Entertainment *
6 * Detmolder Strasse 189 *
9 * e-mail: info@artsoft.org *
10 *----------------------------------------------------------*
12 ***********************************************************/
22 /* values for DrawGadget() */
23 #define DG_UNPRESSED 0
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 struct GadgetInfo *getGadgetInfoFromGadgetID(int id)
37 struct GadgetInfo *gi = gadget_list_first_entry;
39 while (gi && gi->id != id)
45 static int getNewGadgetID()
47 int id = next_free_gadget_id++;
49 if (next_free_gadget_id <= 0) /* counter overrun */
51 gadget_id_wrapped = TRUE; /* now we must check each ID */
52 next_free_gadget_id = 0;
55 if (gadget_id_wrapped)
57 next_free_gadget_id++;
58 while (getGadgetInfoFromGadgetID(next_free_gadget_id) != NULL)
59 next_free_gadget_id++;
62 if (next_free_gadget_id <= 0) /* cannot get new gadget id */
63 Error(ERR_EXIT, "too much gadgets -- this should not happen");
68 static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my)
70 struct GadgetInfo *gi;
72 /* open selectboxes may overlap other active gadgets, so check them first */
73 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
75 if (gi->mapped && gi->active &&
76 gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
77 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
78 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
82 /* check all other gadgets */
83 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
85 if (gi->mapped && gi->active &&
86 mx >= gi->x && mx < gi->x + gi->width &&
87 my >= gi->y && my < gi->y + gi->height)
94 static void setTextAreaCursorExt(struct GadgetInfo *gi, boolean set_cursor_pos)
96 char *text = gi->textarea.value;
97 int area_xsize = gi->textarea.xsize;
98 int area_ysize = gi->textarea.ysize;
99 int cursor_position = gi->textarea.cursor_position;
100 int cursor_x = gi->textarea.cursor_x;
101 int cursor_y = gi->textarea.cursor_y;
108 if (set_cursor_pos) /* x/y => position */
110 if (y == cursor_y && (x == cursor_x || (x < cursor_x && *text == '\n')))
113 else /* position => x/y */
115 if (pos == cursor_position)
119 if (x + 1 >= area_xsize || *text == '\n')
121 if (y + 1 >= area_ysize)
134 gi->textarea.cursor_x = x;
135 gi->textarea.cursor_y = y;
136 gi->textarea.cursor_x_preferred = x;
137 gi->textarea.cursor_position = pos;
140 static void setTextAreaCursorXY(struct GadgetInfo *gi, int x, int y)
142 gi->textarea.cursor_x = x;
143 gi->textarea.cursor_y = y;
145 setTextAreaCursorExt(gi, TRUE);
148 static void setTextAreaCursorPosition(struct GadgetInfo *gi, int pos)
150 gi->textarea.cursor_position = pos;
152 setTextAreaCursorExt(gi, FALSE);
155 static void default_callback_info(void *ptr)
160 static void default_callback_action(void *ptr)
165 static void DrawGadget(struct GadgetInfo *gi, boolean pressed, boolean direct)
167 struct GadgetDesign *gd;
168 int state = (pressed ? GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
169 boolean redraw_selectbox = FALSE;
174 gd = (!gi->active ? &gi->alt_design[state] :
175 gi->checked ? &gi->alt_design[state] : &gi->design[state]);
179 case GD_TYPE_NORMAL_BUTTON:
180 case GD_TYPE_CHECK_BUTTON:
181 case GD_TYPE_RADIO_BUTTON:
182 BlitBitmapOnBackground(gd->bitmap, drawto,
183 gd->x, gd->y, gi->width, gi->height,
185 if (gi->deco.design.bitmap)
186 BlitBitmap(gi->deco.design.bitmap, drawto,
187 gi->deco.design.x, gi->deco.design.y,
188 gi->deco.width, gi->deco.height,
189 gi->x + gi->deco.x + (pressed ? gi->deco.xshift : 0),
190 gi->y + gi->deco.y + (pressed ? gi->deco.yshift : 0));
193 case GD_TYPE_TEXT_BUTTON:
196 int font_nr = (gi->active ? gi->font_active : gi->font);
197 int font_width = getFontWidth(font_nr);
198 int border_x = gi->border.xsize;
199 int border_y = gi->border.ysize;
200 int text_size = strlen(gi->textbutton.value);
201 int text_start = (gi->width - text_size * font_width) / 2;
203 /* left part of gadget */
204 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
205 border_x, gi->height, gi->x, gi->y);
207 /* middle part of gadget */
208 for (i=0; i < gi->textbutton.size; i++)
209 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
210 font_width, gi->height,
211 gi->x + border_x + i * font_width, gi->y);
213 /* right part of gadget */
214 BlitBitmapOnBackground(gd->bitmap, drawto,
215 gd->x + gi->border.width - border_x, gd->y,
216 border_x, gi->height,
217 gi->x + gi->width - border_x, gi->y);
219 /* gadget text value */
221 gi->x + text_start + (pressed ? gi->deco.xshift : 0),
222 gi->y + border_y + (pressed ? gi->deco.yshift : 0),
223 gi->textbutton.value, font_nr, BLIT_MASKED);
227 case GD_TYPE_TEXT_INPUT_ALPHANUMERIC:
228 case GD_TYPE_TEXT_INPUT_NUMERIC:
232 char cursor_string[2];
233 char text[MAX_GADGET_TEXTSIZE + 1];
234 int font_nr = (pressed ? gi->font_active : gi->font);
235 int font_width = getFontWidth(font_nr);
236 int border_x = gi->border.xsize;
237 int border_y = gi->border.ysize;
239 /* left part of gadget */
240 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
241 border_x, gi->height, gi->x, gi->y);
243 /* middle part of gadget */
244 for (i=0; i < gi->textinput.size + 1; i++)
245 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
246 font_width, gi->height,
247 gi->x + border_x + i * font_width, gi->y);
249 /* right part of gadget */
250 BlitBitmapOnBackground(gd->bitmap, drawto,
251 gd->x + gi->border.width - border_x, gd->y,
252 border_x, gi->height,
253 gi->x + gi->width - border_x, gi->y);
256 strcpy(text, gi->textinput.value);
259 /* gadget text value */
261 gi->x + border_x, gi->y + border_y, text,
262 font_nr, BLIT_MASKED);
264 cursor_letter = gi->textinput.value[gi->textinput.cursor_position];
265 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
266 cursor_string[1] = '\0';
268 /* draw cursor, if active */
272 gi->textinput.cursor_position * font_width,
273 gi->y + border_y, cursor_string,
274 font_nr, BLIT_INVERSE);
278 case GD_TYPE_TEXT_AREA:
282 char cursor_string[2];
283 int font_nr = (pressed ? gi->font_active : gi->font);
284 int font_width = getFontWidth(font_nr);
285 int font_height = getFontHeight(font_nr);
286 int border_x = gi->border.xsize;
287 int border_y = gi->border.ysize;
288 int gd_height = 2 * border_y + font_height;
290 /* top left part of gadget border */
291 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
292 border_x, border_y, gi->x, gi->y);
294 /* top middle part of gadget border */
295 for (i=0; i < gi->textarea.xsize; i++)
296 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
297 font_width, border_y,
298 gi->x + border_x + i * font_width, gi->y);
300 /* top right part of gadget border */
301 BlitBitmapOnBackground(gd->bitmap, drawto,
302 gd->x + gi->border.width - border_x, gd->y,
304 gi->x + gi->width - border_x, gi->y);
306 /* left and right part of gadget border for each row */
307 for (i=0; i < gi->textarea.ysize; i++)
309 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
310 border_x, font_height,
311 gi->x, gi->y + border_y + i * font_height);
312 BlitBitmapOnBackground(gd->bitmap, drawto,
313 gd->x + gi->border.width - border_x,
315 border_x, font_height,
316 gi->x + gi->width - border_x,
317 gi->y + border_y + i * font_height);
320 /* bottom left part of gadget border */
321 BlitBitmapOnBackground(gd->bitmap, drawto,
322 gd->x, gd->y + gd_height - border_y,
324 gi->x, gi->y + gi->height - border_y);
326 /* bottom middle part of gadget border */
327 for (i=0; i < gi->textarea.xsize; i++)
328 BlitBitmapOnBackground(gd->bitmap, drawto,
330 gd->y + gd_height - border_y,
331 font_width, border_y,
332 gi->x + border_x + i * font_width,
333 gi->y + gi->height - border_y);
335 /* bottom right part of gadget border */
336 BlitBitmapOnBackground(gd->bitmap, drawto,
337 gd->x + gi->border.width - border_x,
338 gd->y + gd_height - border_y,
340 gi->x + gi->width - border_x,
341 gi->y + gi->height - border_y);
343 ClearRectangleOnBackground(drawto,
346 gi->width - 2 * border_x,
347 gi->height - 2 * border_y);
349 /* gadget text value */
350 DrawTextToTextArea(gi->x + border_x, gi->y + border_y,
351 gi->textarea.value, font_nr, gi->textarea.xsize,
352 gi->textarea.xsize, gi->textarea.ysize,
355 cursor_letter = gi->textarea.value[gi->textarea.cursor_position];
356 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
357 cursor_string[1] = '\0';
359 /* draw cursor, if active */
362 gi->x + border_x + gi->textarea.cursor_x * font_width,
363 gi->y + border_y + gi->textarea.cursor_y * font_height,
365 font_nr, BLIT_INVERSE);
369 case GD_TYPE_SELECTBOX:
372 char text[MAX_GADGET_TEXTSIZE + 1];
373 int font_nr = (pressed ? gi->font_active : gi->font);
374 int font_width = getFontWidth(font_nr);
375 int font_height = getFontHeight(font_nr);
376 int border_x = gi->border.xsize;
377 int border_y = gi->border.ysize;
378 int button = gi->border.xsize_selectbutton;
379 int width_inner = gi->border.width - button - 2 * border_x;
380 int box_width = gi->selectbox.width;
381 int box_height = gi->selectbox.height;
383 /* left part of gadget */
384 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
385 border_x, gi->height, gi->x, gi->y);
387 /* middle part of gadget */
388 for (i=0; i < gi->selectbox.size; i++)
389 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
390 font_width, gi->height,
391 gi->x + border_x + i * font_width, gi->y);
393 /* button part of gadget */
394 BlitBitmapOnBackground(gd->bitmap, drawto,
395 gd->x + border_x + width_inner, gd->y,
397 gi->x + gi->width - border_x - button, gi->y);
399 /* right part of gadget */
400 BlitBitmapOnBackground(gd->bitmap, drawto,
401 gd->x + gi->border.width - border_x, gd->y,
402 border_x, gi->height,
403 gi->x + gi->width - border_x, gi->y);
406 strncpy(text, gi->selectbox.options[gi->selectbox.index].text,
408 text[gi->selectbox.size] = '\0';
410 /* gadget text value */
411 DrawTextExt(drawto, gi->x + border_x, gi->y + border_y, text,
412 font_nr, BLIT_MASKED);
416 if (!gi->selectbox.open)
418 gi->selectbox.open = TRUE;
419 gi->selectbox.stay_open = FALSE;
420 gi->selectbox.current_index = gi->selectbox.index;
422 /* save background under selectbox */
423 BlitBitmap(drawto, gfx.field_save_buffer,
424 gi->selectbox.x, gi->selectbox.y,
425 gi->selectbox.width, gi->selectbox.height,
426 gi->selectbox.x, gi->selectbox.y);
429 /* draw open selectbox */
431 /* top left part of gadget border */
432 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
434 gi->selectbox.x, gi->selectbox.y);
436 /* top middle part of gadget border */
437 for (i=0; i < gi->selectbox.size; i++)
438 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
439 font_width, border_y,
440 gi->selectbox.x + border_x + i * font_width,
443 /* top button part of gadget border */
444 BlitBitmapOnBackground(gd->bitmap, drawto,
445 gd->x + border_x + width_inner, gd->y,
447 gi->selectbox.x + box_width -border_x -button,
450 /* top right part of gadget border */
451 BlitBitmapOnBackground(gd->bitmap, drawto,
452 gd->x + gi->border.width - border_x, gd->y,
454 gi->selectbox.x + box_width - border_x,
457 /* left and right part of gadget border for each row */
458 for (i=0; i < gi->selectbox.num_values; i++)
460 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
461 border_x, font_height,
463 gi->selectbox.y + border_y + i*font_height);
464 BlitBitmapOnBackground(gd->bitmap, drawto,
465 gd->x + gi->border.width - border_x,
467 border_x, font_height,
468 gi->selectbox.x + box_width - border_x,
469 gi->selectbox.y + border_y + i*font_height);
472 /* bottom left part of gadget border */
473 BlitBitmapOnBackground(gd->bitmap, drawto,
474 gd->x, gd->y + gi->height - border_y,
477 gi->selectbox.y + box_height - border_y);
479 /* bottom middle part of gadget border */
480 for (i=0; i < gi->selectbox.size; i++)
481 BlitBitmapOnBackground(gd->bitmap, drawto,
483 gd->y + gi->height - border_y,
484 font_width, border_y,
485 gi->selectbox.x + border_x + i * font_width,
486 gi->selectbox.y + box_height - border_y);
488 /* bottom button part of gadget border */
489 BlitBitmapOnBackground(gd->bitmap, drawto,
490 gd->x + border_x + width_inner,
491 gd->y + gi->height - border_y,
493 gi->selectbox.x + box_width -border_x -button,
494 gi->selectbox.y + box_height - border_y);
496 /* bottom right part of gadget border */
497 BlitBitmapOnBackground(gd->bitmap, drawto,
498 gd->x + gi->border.width - border_x,
499 gd->y + gi->height - border_y,
501 gi->selectbox.x + box_width - border_x,
502 gi->selectbox.y + box_height - border_y);
504 ClearRectangleOnBackground(drawto,
505 gi->selectbox.x + border_x,
506 gi->selectbox.y + border_y,
507 gi->selectbox.width - 2 * border_x,
508 gi->selectbox.height - 2 * border_y);
510 /* selectbox text values */
511 for (i=0; i < gi->selectbox.num_values; i++)
513 int mask_mode = BLIT_MASKED;
515 strncpy(text, gi->selectbox.options[i].text, gi->selectbox.size);
516 text[gi->selectbox.size] = '\0';
518 if (i == gi->selectbox.current_index)
520 FillRectangle(drawto,
521 gi->selectbox.x + border_x,
522 gi->selectbox.y + border_y + i * font_height,
523 gi->selectbox.width - 2 * border_x, font_height,
524 gi->selectbox.inverse_color);
526 /* prevent use of cursor graphic by drawing at least two chars */
528 text[gi->selectbox.size] = '\0';
530 mask_mode = BLIT_INVERSE;
534 gi->selectbox.x + border_x,
535 gi->selectbox.y + border_y + i * font_height, text,
539 redraw_selectbox = TRUE;
541 else if (gi->selectbox.open)
543 gi->selectbox.open = FALSE;
545 /* restore background under selectbox */
546 BlitBitmap(gfx.field_save_buffer, drawto,
547 gi->selectbox.x, gi->selectbox.y,
548 gi->selectbox.width, gi->selectbox.height,
549 gi->selectbox.x, gi->selectbox.y);
551 /* redraw closed selectbox */
552 DrawGadget(gi, FALSE, FALSE);
554 redraw_selectbox = TRUE;
559 case GD_TYPE_SCROLLBAR_VERTICAL:
563 int ypos = gi->y + gi->scrollbar.position;
564 int design_full = gi->width;
565 int design_body = design_full - 2 * gi->border.ysize;
566 int size_full = gi->scrollbar.size;
567 int size_body = size_full - 2 * gi->border.ysize;
568 int num_steps = size_body / design_body;
569 int step_size_remain = size_body - num_steps * design_body;
571 /* clear scrollbar area */
572 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
573 gi->width, gi->height);
575 /* upper part of gadget */
576 BlitBitmapOnBackground(gd->bitmap, drawto,
578 gi->width, gi->border.ysize,
581 /* middle part of gadget */
582 for (i=0; i < num_steps; i++)
583 BlitBitmapOnBackground(gd->bitmap, drawto,
584 gd->x, gd->y + gi->border.ysize,
585 gi->width, design_body,
587 ypos + gi->border.ysize + i * design_body);
589 /* remaining middle part of gadget */
590 if (step_size_remain > 0)
591 BlitBitmapOnBackground(gd->bitmap, drawto,
592 gd->x, gd->y + gi->border.ysize,
593 gi->width, step_size_remain,
595 ypos + gi->border.ysize
596 + num_steps * design_body);
598 /* lower part of gadget */
599 BlitBitmapOnBackground(gd->bitmap, drawto,
600 gd->x, gd->y + design_full - gi->border.ysize,
601 gi->width, gi->border.ysize,
602 xpos, ypos + size_full - gi->border.ysize);
606 case GD_TYPE_SCROLLBAR_HORIZONTAL:
609 int xpos = gi->x + gi->scrollbar.position;
611 int design_full = gi->height;
612 int design_body = design_full - 2 * gi->border.xsize;
613 int size_full = gi->scrollbar.size;
614 int size_body = size_full - 2 * gi->border.xsize;
615 int num_steps = size_body / design_body;
616 int step_size_remain = size_body - num_steps * design_body;
618 /* clear scrollbar area */
619 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
620 gi->width, gi->height);
622 /* left part of gadget */
623 BlitBitmapOnBackground(gd->bitmap, drawto,
625 gi->border.xsize, gi->height,
628 /* middle part of gadget */
629 for (i=0; i < num_steps; i++)
630 BlitBitmapOnBackground(gd->bitmap, drawto,
631 gd->x + gi->border.xsize, gd->y,
632 design_body, gi->height,
633 xpos + gi->border.xsize + i * design_body,
636 /* remaining middle part of gadget */
637 if (step_size_remain > 0)
638 BlitBitmapOnBackground(gd->bitmap, drawto,
639 gd->x + gi->border.xsize, gd->y,
640 step_size_remain, gi->height,
641 xpos + gi->border.xsize
642 + num_steps * design_body,
645 /* right part of gadget */
646 BlitBitmapOnBackground(gd->bitmap, drawto,
647 gd->x + design_full - gi->border.xsize, gd->y,
648 gi->border.xsize, gi->height,
649 xpos + size_full - gi->border.xsize, ypos);
659 BlitBitmap(drawto, window,
660 gi->x, gi->y, gi->width, gi->height, gi->x, gi->y);
662 if (gi->type == GD_TYPE_SELECTBOX && redraw_selectbox)
663 BlitBitmap(drawto, window,
664 gi->selectbox.x, gi->selectbox.y,
665 gi->selectbox.width, gi->selectbox.height,
666 gi->selectbox.x, gi->selectbox.y);
669 redraw_mask |= (gi->x < gfx.sx + gfx.sxsize ? REDRAW_FIELD :
670 gi->y < gfx.dy + gfx.dysize ? REDRAW_DOOR_1 :
671 gi->y > gfx.vy ? REDRAW_DOOR_2 : REDRAW_DOOR_3);
674 static int get_minimal_size_for_numeric_input(int minmax_value)
676 int min_size = 1; /* value needs at least one digit */
679 /* add number of digits needed for absolute value */
680 for (i = 10; i <= ABS(minmax_value); i *= 10)
683 /* if min/max value is negative, add one digit for minus sign */
684 if (minmax_value < 0)
690 static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
697 while (tag != GDI_END)
702 gi->custom_id = va_arg(ap, int);
705 case GDI_CUSTOM_TYPE_ID:
706 gi->custom_type_id = va_arg(ap, int);
711 int max_textsize = MAX_INFO_TEXTSIZE - 1;
712 char *text = va_arg(ap, char *);
715 strncpy(gi->info_text, text, max_textsize);
719 gi->info_text[max_textsize] = '\0';
724 gi->x = va_arg(ap, int);
728 gi->y = va_arg(ap, int);
732 gi->width = va_arg(ap, int);
736 gi->height = va_arg(ap, int);
740 gi->type = va_arg(ap, unsigned int);
744 gi->state = va_arg(ap, unsigned int);
748 /* take care here: "boolean" is typedef'ed as "unsigned char",
749 which gets promoted to "int" */
750 gi->active = (boolean)va_arg(ap, int);
753 case GDI_DIRECT_DRAW:
754 /* take care here: "boolean" is typedef'ed as "unsigned char",
755 which gets promoted to "int" */
756 gi->direct_draw = (boolean)va_arg(ap, int);
760 /* take care here: "boolean" is typedef'ed as "unsigned char",
761 which gets promoted to "int" */
762 gi->checked = (boolean)va_arg(ap, int);
766 gi->radio_nr = va_arg(ap, unsigned int);
769 case GDI_NUMBER_VALUE:
770 gi->textinput.number_value = va_arg(ap, int);
771 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
772 strcpy(gi->textinput.last_value, gi->textinput.value);
773 gi->textinput.cursor_position = strlen(gi->textinput.value);
777 gi->textinput.number_min = va_arg(ap, int);
778 if (gi->textinput.number_value < gi->textinput.number_min)
780 gi->textinput.number_value = gi->textinput.number_min;
781 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
782 strcpy(gi->textinput.last_value, gi->textinput.value);
787 gi->textinput.number_max = va_arg(ap, int);
788 if (gi->textinput.number_value > gi->textinput.number_max)
790 gi->textinput.number_value = gi->textinput.number_max;
791 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
792 strcpy(gi->textinput.last_value, gi->textinput.value);
798 int max_textsize = MAX_GADGET_TEXTSIZE;
800 if (gi->textinput.size)
801 max_textsize = MIN(gi->textinput.size, MAX_GADGET_TEXTSIZE - 1);
803 strncpy(gi->textinput.value, va_arg(ap, char *), max_textsize);
804 strcpy(gi->textinput.last_value, gi->textinput.value);
806 gi->textinput.value[max_textsize] = '\0';
807 gi->textinput.cursor_position = strlen(gi->textinput.value);
809 /* same tag also used for other gadget definitions */
810 strcpy(gi->textbutton.value, gi->textinput.value);
811 strcpy(gi->textarea.value, gi->textinput.value);
812 strcpy(gi->textarea.last_value, gi->textinput.value);
818 int tag_value = va_arg(ap, int);
819 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE - 1);
821 gi->textinput.size = max_textsize;
822 gi->textinput.value[max_textsize] = '\0';
823 strcpy(gi->textinput.last_value, gi->textinput.value);
825 /* same tag also used for other gadget definitions */
827 gi->textarea.size = max_textsize;
828 gi->textarea.value[max_textsize] = '\0';
829 strcpy(gi->textarea.last_value, gi->textinput.value);
831 gi->textbutton.size = max_textsize;
832 gi->textbutton.value[max_textsize] = '\0';
834 gi->selectbox.size = gi->textinput.size;
839 gi->font = va_arg(ap, int);
840 if (gi->font_active == 0)
841 gi->font_active = gi->font;
844 case GDI_TEXT_FONT_ACTIVE:
845 gi->font_active = va_arg(ap, int);
848 case GDI_SELECTBOX_OPTIONS:
849 gi->selectbox.options = va_arg(ap, struct ValueTextInfo *);
852 case GDI_SELECTBOX_INDEX:
853 gi->selectbox.index = va_arg(ap, int);
856 case GDI_DESIGN_UNPRESSED:
857 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
858 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
859 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
862 case GDI_DESIGN_PRESSED:
863 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
864 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
865 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
868 case GDI_ALT_DESIGN_UNPRESSED:
869 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
870 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
871 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
874 case GDI_ALT_DESIGN_PRESSED:
875 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
876 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
877 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
880 case GDI_BORDER_SIZE:
881 gi->border.xsize = va_arg(ap, int);
882 gi->border.ysize = va_arg(ap, int);
885 case GDI_BORDER_SIZE_SELECTBUTTON:
886 gi->border.xsize_selectbutton = va_arg(ap, int);
889 case GDI_DESIGN_WIDTH:
890 gi->border.width = va_arg(ap, int);
893 case GDI_DECORATION_DESIGN:
894 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
895 gi->deco.design.x = va_arg(ap, int);
896 gi->deco.design.y = va_arg(ap, int);
899 case GDI_DECORATION_POSITION:
900 gi->deco.x = va_arg(ap, int);
901 gi->deco.y = va_arg(ap, int);
904 case GDI_DECORATION_SIZE:
905 gi->deco.width = va_arg(ap, int);
906 gi->deco.height = va_arg(ap, int);
909 case GDI_DECORATION_SHIFTING:
910 gi->deco.xshift = va_arg(ap, int);
911 gi->deco.yshift = va_arg(ap, int);
915 gi->event_mask = va_arg(ap, unsigned int);
919 gi->drawing.area_xsize = va_arg(ap, int);
920 gi->drawing.area_ysize = va_arg(ap, int);
922 /* determine dependent values for drawing area gadget, if needed */
923 if (gi->width == 0 && gi->height == 0 &&
924 gi->drawing.item_xsize !=0 && gi->drawing.item_ysize !=0)
926 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
927 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
929 else if (gi->drawing.item_xsize == 0 && gi->drawing.item_ysize == 0 &&
930 gi->width != 0 && gi->height != 0)
932 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
933 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
936 /* same tag also used for other gadget definitions */
937 gi->textarea.xsize = gi->drawing.area_xsize;
938 gi->textarea.ysize = gi->drawing.area_ysize;
940 if (gi->type & GD_TYPE_TEXT_AREA) /* force recalculation */
949 gi->drawing.item_xsize = va_arg(ap, int);
950 gi->drawing.item_ysize = va_arg(ap, int);
952 /* determine dependent values for drawing area gadget, if needed */
953 if (gi->width == 0 && gi->height == 0 &&
954 gi->drawing.area_xsize !=0 && gi->drawing.area_ysize !=0)
956 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
957 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
959 else if (gi->drawing.area_xsize == 0 && gi->drawing.area_ysize == 0 &&
960 gi->width != 0 && gi->height != 0)
962 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
963 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
967 case GDI_SCROLLBAR_ITEMS_MAX:
968 gi->scrollbar.items_max = va_arg(ap, int);
971 case GDI_SCROLLBAR_ITEMS_VISIBLE:
972 gi->scrollbar.items_visible = va_arg(ap, int);
975 case GDI_SCROLLBAR_ITEM_POSITION:
976 gi->scrollbar.item_position = va_arg(ap, int);
979 case GDI_CALLBACK_INFO:
980 gi->callback_info = va_arg(ap, gadget_function);
983 case GDI_CALLBACK_ACTION:
984 gi->callback_action = va_arg(ap, gadget_function);
988 Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
991 tag = va_arg(ap, int); /* read next tag */
994 /* check if gadget is complete */
995 if (gi->type != GD_TYPE_DRAWING_AREA &&
996 (!gi->design[GD_BUTTON_UNPRESSED].bitmap ||
997 !gi->design[GD_BUTTON_PRESSED].bitmap))
998 Error(ERR_EXIT, "gadget incomplete (missing Bitmap)");
1000 /* adjust gadget values in relation to other gadget values */
1002 if (gi->type & GD_TYPE_TEXT_INPUT)
1004 int font_nr = gi->font_active;
1005 int font_width = getFontWidth(font_nr);
1006 int font_height = getFontHeight(font_nr);
1007 int border_xsize = gi->border.xsize;
1008 int border_ysize = gi->border.ysize;
1010 if (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC)
1012 int number_min = gi->textinput.number_min;
1013 int number_max = gi->textinput.number_max;
1014 int min_size_min = get_minimal_size_for_numeric_input(number_min);
1015 int min_size_max = get_minimal_size_for_numeric_input(number_max);
1016 int min_size = MAX(min_size_min, min_size_max);
1018 /* expand gadget text input size, if maximal value is too large */
1019 if (gi->textinput.size < min_size)
1020 gi->textinput.size = min_size;
1023 gi->width = 2 * border_xsize + (gi->textinput.size + 1) * font_width;
1024 gi->height = 2 * border_ysize + font_height;
1027 if (gi->type & GD_TYPE_SELECTBOX)
1029 int font_nr = gi->font_active;
1030 int font_width = getFontWidth(font_nr);
1031 int font_height = getFontHeight(font_nr);
1032 int border_xsize = gi->border.xsize;
1033 int border_ysize = gi->border.ysize;
1034 int button_size = gi->border.xsize_selectbutton;
1035 int bottom_screen_border = gfx.sy + gfx.sysize - font_height;
1039 gi->width = 2 * border_xsize + gi->textinput.size*font_width +button_size;
1040 gi->height = 2 * border_ysize + font_height;
1042 if (gi->selectbox.options == NULL)
1043 Error(ERR_EXIT, "selectbox gadget incomplete (missing options array)");
1045 gi->selectbox.num_values = 0;
1046 while (gi->selectbox.options[gi->selectbox.num_values].text != NULL)
1047 gi->selectbox.num_values++;
1049 /* calculate values for open selectbox */
1050 gi->selectbox.width = gi->width;
1051 gi->selectbox.height =
1052 2 * border_ysize + gi->selectbox.num_values * font_height;
1054 gi->selectbox.x = gi->x;
1055 gi->selectbox.y = gi->y + gi->height;
1056 if (gi->selectbox.y + gi->selectbox.height > bottom_screen_border)
1057 gi->selectbox.y = gi->y - gi->selectbox.height;
1058 if (gi->selectbox.y < 0)
1059 gi->selectbox.y = bottom_screen_border - gi->selectbox.height;
1061 getFontCharSource(font_nr, FONT_ASCII_CURSOR, &src_bitmap, &src_x, &src_y);
1062 src_x += font_width / 2;
1063 src_y += font_height / 2;
1065 /* there may be esoteric cases with missing or too small font bitmap */
1066 if (src_bitmap != NULL &&
1067 src_x < src_bitmap->width && src_y < src_bitmap->height)
1068 gi->selectbox.inverse_color = GetPixel(src_bitmap, src_x, src_y);
1070 /* always start with closed selectbox */
1071 gi->selectbox.open = FALSE;
1074 if (gi->type & GD_TYPE_TEXT_INPUT_NUMERIC)
1076 struct GadgetTextInput *text = &gi->textinput;
1077 int value = text->number_value;
1079 text->number_value = (value < text->number_min ? text->number_min :
1080 value > text->number_max ? text->number_max :
1083 sprintf(text->value, "%d", text->number_value);
1086 if (gi->type & GD_TYPE_TEXT_BUTTON)
1088 int font_nr = gi->font_active;
1089 int font_width = getFontWidth(font_nr);
1090 int font_height = getFontHeight(font_nr);
1091 int border_xsize = gi->border.xsize;
1092 int border_ysize = gi->border.ysize;
1094 gi->width = 2 * border_xsize + gi->textbutton.size * font_width;
1095 gi->height = 2 * border_ysize + font_height;
1098 if (gi->type & GD_TYPE_SCROLLBAR)
1100 struct GadgetScrollbar *gs = &gi->scrollbar;
1101 int scrollbar_size_cmp;
1103 if (gi->width == 0 || gi->height == 0 ||
1104 gs->items_max == 0 || gs->items_visible == 0)
1105 Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
1107 /* calculate internal scrollbar values */
1108 gs->size_min = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1109 gi->width : gi->height);
1110 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1111 gi->height : gi->width);
1113 scrollbar_size_cmp = gs->size_max * gs->items_visible / gs->items_max;
1114 gs->size = MAX(scrollbar_size_cmp, gs->size_min);
1115 gs->size_max_cmp = (gs->size_max - (gs->size - scrollbar_size_cmp));
1117 gs->position = gs->size_max_cmp * gs->item_position / gs->items_max;
1118 gs->position_max = gs->size_max - gs->size;
1119 gs->correction = gs->size_max / gs->items_max / 2;
1121 /* finetuning for maximal right/bottom position */
1122 if (gs->item_position == gs->items_max - gs->items_visible)
1123 gs->position = gs->position_max;
1126 if (gi->type & GD_TYPE_TEXT_AREA)
1128 int font_nr = gi->font_active;
1129 int font_width = getFontWidth(font_nr);
1130 int font_height = getFontHeight(font_nr);
1131 int border_xsize = gi->border.xsize;
1132 int border_ysize = gi->border.ysize;
1134 if (gi->width == 0 || gi->height == 0)
1136 gi->width = 2 * border_xsize + gi->textarea.xsize * font_width;
1137 gi->height = 2 * border_ysize + gi->textarea.ysize * font_height;
1141 gi->textarea.xsize = (gi->width - 2 * border_xsize) / font_width;
1142 gi->textarea.ysize = (gi->height - 2 * border_ysize) / font_height;
1147 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
1151 va_start(ap, first_tag);
1152 HandleGadgetTags(gi, first_tag, ap);
1158 void RedrawGadget(struct GadgetInfo *gi)
1164 DrawGadget(gi, gi->state, gi->direct_draw);
1167 struct GadgetInfo *CreateGadget(int first_tag, ...)
1169 struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
1172 /* always start with reliable default values */
1173 new_gadget->id = getNewGadgetID();
1174 new_gadget->callback_info = default_callback_info;
1175 new_gadget->callback_action = default_callback_action;
1176 new_gadget->active = TRUE;
1177 new_gadget->direct_draw = TRUE;
1179 new_gadget->next = NULL;
1181 va_start(ap, first_tag);
1182 HandleGadgetTags(new_gadget, first_tag, ap);
1185 /* insert new gadget into global gadget list */
1186 if (gadget_list_last_entry)
1188 gadget_list_last_entry->next = new_gadget;
1189 gadget_list_last_entry = gadget_list_last_entry->next;
1192 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
1197 void FreeGadget(struct GadgetInfo *gi)
1199 struct GadgetInfo *gi_previous = gadget_list_first_entry;
1201 /* prevent "last_info_gi" from pointing to memory that will be freed */
1202 if (last_info_gi == gi)
1203 last_info_gi = NULL;
1205 while (gi_previous != NULL && gi_previous->next != gi)
1206 gi_previous = gi_previous->next;
1208 if (gi == gadget_list_first_entry)
1209 gadget_list_first_entry = gi->next;
1211 if (gi == gadget_list_last_entry)
1212 gadget_list_last_entry = gi_previous;
1214 if (gi_previous != NULL)
1215 gi_previous->next = gi->next;
1220 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
1222 if (gi->type != GD_TYPE_TEXT_INPUT_NUMERIC)
1225 gi->textinput.number_value = atoi(gi->textinput.value);
1227 if (gi->textinput.number_value < gi->textinput.number_min)
1228 gi->textinput.number_value = gi->textinput.number_min;
1229 if (gi->textinput.number_value > gi->textinput.number_max)
1230 gi->textinput.number_value = gi->textinput.number_max;
1232 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
1234 if (gi->textinput.cursor_position < 0)
1235 gi->textinput.cursor_position = 0;
1236 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1237 gi->textinput.cursor_position = strlen(gi->textinput.value);
1240 /* global pointer to gadget actually in use (when mouse button pressed) */
1241 static struct GadgetInfo *last_gi = NULL;
1243 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
1245 if (gi == NULL || gi->mapped)
1251 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
1254 void MapGadget(struct GadgetInfo *gi)
1256 MapGadgetExt(gi, TRUE);
1259 void UnmapGadget(struct GadgetInfo *gi)
1261 if (gi == NULL || !gi->mapped)
1270 #define MAX_NUM_GADGETS 1024
1271 #define MULTIMAP_UNMAP (1 << 0)
1272 #define MULTIMAP_REMAP (1 << 1)
1273 #define MULTIMAP_REDRAW (1 << 2)
1274 #define MULTIMAP_PLAYFIELD (1 << 3)
1275 #define MULTIMAP_DOOR_1 (1 << 4)
1276 #define MULTIMAP_DOOR_2 (1 << 5)
1277 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
1281 static void MultiMapGadgets(int mode)
1283 struct GadgetInfo *gi = gadget_list_first_entry;
1284 static boolean map_state[MAX_NUM_GADGETS];
1289 if ((mode & MULTIMAP_PLAYFIELD &&
1290 gi->x < gfx.sx + gfx.sxsize) ||
1291 (mode & MULTIMAP_DOOR_1 &&
1292 gi->x >= gfx.dx && gi->y < gfx.dy + gfx.dysize) ||
1293 (mode & MULTIMAP_DOOR_2 &&
1294 gi->x >= gfx.dx && gi->y > gfx.dy + gfx.dysize) ||
1295 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
1297 if (mode & MULTIMAP_UNMAP)
1299 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
1304 if (map_state[map_count++ % MAX_NUM_GADGETS])
1305 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
1313 void UnmapAllGadgets()
1315 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
1318 void RemapAllGadgets()
1320 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
1323 boolean anyTextInputGadgetActive()
1325 return (last_gi && (last_gi->type & GD_TYPE_TEXT_INPUT) && last_gi->mapped);
1328 boolean anyTextAreaGadgetActive()
1330 return (last_gi && (last_gi->type & GD_TYPE_TEXT_AREA) && last_gi->mapped);
1333 boolean anySelectboxGadgetActive()
1335 return (last_gi && (last_gi->type & GD_TYPE_SELECTBOX) && last_gi->mapped);
1338 boolean anyScrollbarGadgetActive()
1340 return (last_gi && (last_gi->type & GD_TYPE_SCROLLBAR) && last_gi->mapped);
1343 boolean anyTextGadgetActive()
1345 return (anyTextInputGadgetActive() ||
1346 anyTextAreaGadgetActive() ||
1347 anySelectboxGadgetActive());
1350 static boolean insideSelectboxLine(struct GadgetInfo *gi, int mx, int my)
1352 return(gi != NULL &&
1353 gi->type & GD_TYPE_SELECTBOX &&
1354 mx >= gi->x && mx < gi->x + gi->width &&
1355 my >= gi->y && my < gi->y + gi->height);
1358 static boolean insideSelectboxArea(struct GadgetInfo *gi, int mx, int my)
1360 return(gi != NULL &&
1361 gi->type & GD_TYPE_SELECTBOX &&
1362 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
1363 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height);
1366 void ClickOnGadget(struct GadgetInfo *gi, int button)
1371 /* simulate releasing mouse button over last gadget, if still pressed */
1373 HandleGadgets(-1, -1, 0);
1375 /* simulate pressing mouse button over specified gadget */
1376 HandleGadgets(gi->x, gi->y, button);
1378 /* simulate releasing mouse button over specified gadget */
1379 HandleGadgets(gi->x, gi->y, 0);
1382 boolean HandleGadgets(int mx, int my, int button)
1384 static unsigned long pressed_delay = 0;
1385 static int last_button = 0;
1386 static int last_mx = 0, last_my = 0;
1387 static int pressed_mx = 0, pressed_my = 0;
1388 static boolean keep_selectbox_open = FALSE;
1389 int scrollbar_mouse_pos = 0;
1390 struct GadgetInfo *new_gi, *gi;
1391 boolean press_event;
1392 boolean release_event;
1393 boolean mouse_moving;
1394 boolean mouse_inside_select_line;
1395 boolean mouse_inside_select_area;
1396 boolean mouse_released_where_pressed;
1397 boolean gadget_pressed;
1398 boolean gadget_pressed_repeated;
1399 boolean gadget_pressed_off_borders;
1400 boolean gadget_pressed_inside_select_line;
1401 boolean gadget_moving;
1402 boolean gadget_moving_inside;
1403 boolean gadget_moving_off_borders;
1404 boolean gadget_released;
1405 boolean gadget_released_inside;
1406 boolean gadget_released_inside_select_line;
1407 boolean gadget_released_inside_select_area;
1408 boolean gadget_released_off_borders;
1409 boolean changed_position = FALSE;
1411 /* check if there are any gadgets defined */
1412 if (gadget_list_first_entry == NULL)
1415 /* simulated release of mouse button over last gadget */
1416 if (mx == -1 && my == -1 && button == 0)
1422 /* check which gadget is under the mouse pointer */
1423 new_gi = getGadgetInfoFromMousePosition(mx, my);
1425 /* check if button state has changed since last invocation */
1426 press_event = (button != 0 && last_button == 0);
1427 release_event = (button == 0 && last_button != 0);
1428 last_button = button;
1430 /* check if mouse has been moved since last invocation */
1431 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
1435 if (press_event && new_gi != last_gi)
1441 mouse_released_where_pressed =
1442 (release_event && mx == pressed_mx && my == pressed_my);
1444 mouse_inside_select_line = insideSelectboxLine(new_gi, mx, my);
1445 mouse_inside_select_area = insideSelectboxArea(new_gi, mx, my);
1447 gadget_pressed_off_borders = (press_event && new_gi != last_gi);
1449 gadget_pressed_inside_select_line =
1450 (press_event && new_gi != NULL &&
1451 new_gi->type & GD_TYPE_SELECTBOX && new_gi->selectbox.open &&
1452 insideSelectboxLine(new_gi, mx, my));
1454 /* if mouse button pressed outside text or selectbox gadget, deactivate it */
1455 if (anyTextGadgetActive() &&
1456 (gadget_pressed_off_borders ||
1457 (gadget_pressed_inside_select_line && !mouse_inside_select_area)))
1459 struct GadgetInfo *gi = last_gi;
1460 boolean gadget_changed = (gi->event_mask & GD_EVENT_TEXT_LEAVING);
1462 /* check if text gadget has changed its value */
1463 if (gi->type & GD_TYPE_TEXT_INPUT)
1465 CheckRangeOfNumericInputGadget(gi);
1467 if (!strEqual(gi->textinput.last_value, gi->textinput.value))
1468 strcpy(gi->textinput.last_value, gi->textinput.value);
1470 gadget_changed = FALSE;
1473 /* selectbox does not change its value when closed by clicking outside */
1474 if (gi->type & GD_TYPE_SELECTBOX)
1475 gadget_changed = FALSE;
1477 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1479 gi->event.type = GD_EVENT_TEXT_LEAVING;
1481 if (gadget_changed && !(gi->type & GD_TYPE_SELECTBOX))
1482 gi->callback_action(gi);
1486 if (gadget_pressed_inside_select_line)
1491 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
1492 gadget_pressed_repeated =
1493 (button != 0 && last_gi != NULL && new_gi == last_gi);
1495 gadget_released = (release_event && last_gi != NULL);
1496 gadget_released_inside = (gadget_released && new_gi == last_gi);
1497 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
1499 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
1500 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
1501 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
1503 /* when handling selectbox, set additional state values */
1504 if (gadget_released_inside && (last_gi->type & GD_TYPE_SELECTBOX))
1506 gadget_released_inside_select_line = insideSelectboxLine(last_gi, mx, my);
1507 gadget_released_inside_select_area = insideSelectboxArea(last_gi, mx, my);
1511 gadget_released_inside_select_line = FALSE;
1512 gadget_released_inside_select_area = FALSE;
1515 /* setting state for handling over-large selectbox */
1516 if (keep_selectbox_open && (press_event || !mouse_inside_select_line))
1517 keep_selectbox_open = FALSE;
1519 /* if new gadget pressed, store this gadget */
1523 /* 'gi' is actually handled gadget */
1526 /* if gadget is scrollbar, choose mouse position value */
1527 if (gi && gi->type & GD_TYPE_SCROLLBAR)
1528 scrollbar_mouse_pos =
1529 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
1531 /* if mouse button released, no gadget needs to be handled anymore */
1532 if (gadget_released)
1534 if (gi->type & GD_TYPE_SELECTBOX &&
1535 (keep_selectbox_open ||
1536 mouse_released_where_pressed ||
1537 !gadget_released_inside_select_area)) /* selectbox stays open */
1539 gi->selectbox.stay_open = TRUE;
1543 else if (!(gi->type & GD_TYPE_TEXT_INPUT ||
1544 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1548 /* modify event position values even if no gadget is pressed */
1549 if (button == 0 && !release_event)
1554 int last_x = gi->event.x;
1555 int last_y = gi->event.y;
1557 gi->event.x = mx - gi->x;
1558 gi->event.y = my - gi->y;
1560 if (gi->type == GD_TYPE_DRAWING_AREA)
1562 gi->event.x /= gi->drawing.item_xsize;
1563 gi->event.y /= gi->drawing.item_ysize;
1565 if (last_x != gi->event.x || last_y != gi->event.y)
1566 changed_position = TRUE;
1568 else if (gi->type & GD_TYPE_TEXT_INPUT && button != 0 && !motion_status)
1570 int old_cursor_position = gi->textinput.cursor_position;
1572 /* if mouse button pressed inside activated text gadget, set cursor */
1573 gi->textinput.cursor_position =
1574 (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1576 if (gi->textinput.cursor_position < 0)
1577 gi->textinput.cursor_position = 0;
1578 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1579 gi->textinput.cursor_position = strlen(gi->textinput.value);
1581 if (gi->textinput.cursor_position != old_cursor_position)
1582 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1584 else if (gi->type & GD_TYPE_TEXT_AREA && button != 0 && !motion_status)
1586 int old_cursor_position = gi->textarea.cursor_position;
1587 int x = (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1588 int y = (my - gi->y - gi->border.ysize) / getFontHeight(gi->font);
1590 x = (x < 0 ? 0 : x >= gi->textarea.xsize ? gi->textarea.xsize - 1 : x);
1591 y = (y < 0 ? 0 : y >= gi->textarea.ysize ? gi->textarea.ysize - 1 : y);
1593 setTextAreaCursorXY(gi, x, y);
1595 if (gi->textarea.cursor_position != old_cursor_position)
1596 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1598 else if (gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
1599 !keep_selectbox_open)
1601 int old_index = gi->selectbox.current_index;
1603 /* if mouse moving inside activated selectbox, select value */
1604 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1605 gi->selectbox.current_index =
1606 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1608 if (gi->selectbox.current_index < 0)
1609 gi->selectbox.current_index = 0;
1610 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1611 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1613 if (gi->selectbox.current_index != old_index)
1614 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1618 /* handle gadget popup info text */
1619 if (last_info_gi != new_gi ||
1620 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
1622 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
1624 new_gi->event.type = GD_EVENT_INFO_ENTERING;
1625 new_gi->callback_info(new_gi);
1627 else if (last_info_gi != NULL)
1629 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
1630 last_info_gi->callback_info(last_info_gi);
1633 last_info_gi = new_gi;
1638 if (gi->type == GD_TYPE_CHECK_BUTTON)
1640 gi->checked = !gi->checked;
1642 else if (gi->type == GD_TYPE_RADIO_BUTTON)
1644 struct GadgetInfo *rgi = gadget_list_first_entry;
1649 rgi->type == GD_TYPE_RADIO_BUTTON &&
1650 rgi->radio_nr == gi->radio_nr &&
1653 rgi->checked = FALSE;
1654 DrawGadget(rgi, DG_UNPRESSED, rgi->direct_draw);
1662 else if (gi->type & GD_TYPE_SCROLLBAR)
1666 if (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL)
1677 if (mpos >= gpos + gi->scrollbar.position &&
1678 mpos < gpos + gi->scrollbar.position + gi->scrollbar.size)
1680 /* drag scrollbar */
1681 gi->scrollbar.drag_position =
1682 scrollbar_mouse_pos - gi->scrollbar.position;
1686 /* click scrollbar one scrollbar length up/left or down/right */
1688 struct GadgetScrollbar *gs = &gi->scrollbar;
1689 int old_item_position = gs->item_position;
1691 changed_position = FALSE;
1693 gs->item_position +=
1694 gs->items_visible * (mpos < gpos + gi->scrollbar.position ? -1 : +1);
1696 if (gs->item_position < 0)
1697 gs->item_position = 0;
1698 else if (gs->item_position > gs->items_max - gs->items_visible)
1699 gs->item_position = gs->items_max - gs->items_visible;
1701 if (old_item_position != gs->item_position)
1703 gi->event.item_position = gs->item_position;
1704 changed_position = TRUE;
1707 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
1710 gi->state = GD_BUTTON_UNPRESSED;
1711 gi->event.type = GD_EVENT_MOVING;
1712 gi->event.off_borders = FALSE;
1714 if (gi->event_mask & GD_EVENT_MOVING && changed_position)
1715 gi->callback_action(gi);
1717 /* don't handle this scrollbar anymore while mouse button pressed */
1723 else if (gi->type & GD_TYPE_SELECTBOX)
1725 /* keep selectbox open in case of over-large selectbox */
1726 keep_selectbox_open = (mouse_inside_select_line &&
1727 mouse_inside_select_area);
1730 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1732 gi->state = GD_BUTTON_PRESSED;
1733 gi->event.type = GD_EVENT_PRESSED;
1734 gi->event.button = button;
1735 gi->event.off_borders = FALSE;
1737 /* initialize delay counter */
1738 DelayReached(&pressed_delay, 0);
1740 if (gi->event_mask & GD_EVENT_PRESSED)
1741 gi->callback_action(gi);
1744 if (gadget_pressed_repeated)
1746 gi->event.type = GD_EVENT_PRESSED;
1748 if (gi->event_mask & GD_EVENT_REPEATED &&
1749 DelayReached(&pressed_delay, GADGET_FRAME_DELAY))
1750 gi->callback_action(gi);
1755 if (gi->type & GD_TYPE_BUTTON)
1757 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
1758 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1759 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
1760 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1762 else if (gi->type & GD_TYPE_SELECTBOX && !keep_selectbox_open)
1764 int old_index = gi->selectbox.current_index;
1766 /* if mouse moving inside activated selectbox, select value */
1767 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1768 gi->selectbox.current_index =
1769 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1771 if (gi->selectbox.current_index < 0)
1772 gi->selectbox.current_index = 0;
1773 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1774 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1776 if (gi->selectbox.current_index != old_index)
1777 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1779 else if (gi->type & GD_TYPE_SCROLLBAR)
1781 struct GadgetScrollbar *gs = &gi->scrollbar;
1782 int old_item_position = gs->item_position;
1784 gs->position = scrollbar_mouse_pos - gs->drag_position;
1786 /* make sure to always precisely reach end positions when dragging */
1787 if (gs->position <= 0)
1790 gs->item_position = 0;
1792 else if (gs->position >= gs->position_max)
1794 gs->position = gs->position_max;
1795 gs->item_position = gs->items_max - gs->items_visible;
1800 gs->items_max * (gs->position + gs->correction) / gs->size_max_cmp;
1803 if (gs->item_position < 0)
1804 gs->item_position = 0;
1805 if (gs->item_position > gs->items_max - 1)
1806 gs->item_position = gs->items_max - 1;
1808 if (old_item_position != gs->item_position)
1810 gi->event.item_position = gs->item_position;
1811 changed_position = TRUE;
1814 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1817 gi->state = (gadget_moving_inside || gi->type & GD_TYPE_SCROLLBAR ?
1818 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
1819 gi->event.type = GD_EVENT_MOVING;
1820 gi->event.off_borders = gadget_moving_off_borders;
1822 if (gi->event_mask & GD_EVENT_MOVING && changed_position &&
1823 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
1824 gi->callback_action(gi);
1827 if (gadget_released_inside)
1829 boolean deactivate_gadget = TRUE;
1830 boolean gadget_changed = TRUE;
1832 if (gi->type & GD_TYPE_SELECTBOX)
1834 if (keep_selectbox_open ||
1835 mouse_released_where_pressed ||
1836 !gadget_released_inside_select_area) /* selectbox stays open */
1838 deactivate_gadget = FALSE;
1839 gadget_changed = FALSE;
1841 else if (gi->selectbox.index != gi->selectbox.current_index)
1842 gi->selectbox.index = gi->selectbox.current_index;
1844 gadget_changed = FALSE;
1847 if (deactivate_gadget &&
1848 !(gi->type & GD_TYPE_TEXT_INPUT ||
1849 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1850 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1852 gi->state = GD_BUTTON_UNPRESSED;
1853 gi->event.type = GD_EVENT_RELEASED;
1855 if ((gi->event_mask & GD_EVENT_RELEASED) && gadget_changed)
1857 gi->callback_action(gi);
1861 if (gadget_released_off_borders)
1863 if (gi->type & GD_TYPE_SCROLLBAR)
1864 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1866 gi->event.type = GD_EVENT_RELEASED;
1868 if (gi->event_mask & GD_EVENT_RELEASED &&
1869 gi->event_mask & GD_EVENT_OFF_BORDERS)
1870 gi->callback_action(gi);
1873 /* handle gadgets unmapped/mapped between pressing and releasing */
1874 if (release_event && !gadget_released && new_gi)
1875 new_gi->state = GD_BUTTON_UNPRESSED;
1877 return (gadget_pressed || gadget_pressed_repeated ||
1878 gadget_released || gadget_moving);
1881 static void insertCharIntoTextArea(struct GadgetInfo *gi, char c)
1883 char text[MAX_GADGET_TEXTSIZE];
1884 int cursor_position = gi->textarea.cursor_position;
1886 if (strlen(gi->textarea.value) == MAX_GADGET_TEXTSIZE) /* no space left */
1889 strcpy(text, gi->textarea.value);
1890 strcpy(&gi->textarea.value[cursor_position + 1], &text[cursor_position]);
1891 gi->textarea.value[cursor_position] = c;
1893 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
1896 boolean HandleGadgetsKeyInput(Key key)
1898 struct GadgetInfo *gi = last_gi;
1900 if (gi == NULL || !gi->mapped ||
1901 !(gi->type & GD_TYPE_TEXT_INPUT ||
1902 gi->type & GD_TYPE_TEXT_AREA ||
1903 gi->type & GD_TYPE_SELECTBOX))
1906 if (key == KSYM_Return) /* valid for both text input and selectbox */
1908 boolean gadget_changed = (gi->event_mask & GD_EVENT_TEXT_RETURN);
1910 if (gi->type & GD_TYPE_TEXT_INPUT)
1912 CheckRangeOfNumericInputGadget(gi);
1914 if (!strEqual(gi->textinput.last_value, gi->textinput.value))
1915 strcpy(gi->textinput.last_value, gi->textinput.value);
1917 gadget_changed = FALSE;
1919 else if (gi->type & GD_TYPE_SELECTBOX)
1921 if (gi->selectbox.index != gi->selectbox.current_index)
1922 gi->selectbox.index = gi->selectbox.current_index;
1924 gadget_changed = FALSE;
1927 if (gi->type & GD_TYPE_TEXT_AREA)
1929 insertCharIntoTextArea(gi, '\n');
1931 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1935 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1937 gi->event.type = GD_EVENT_TEXT_RETURN;
1943 gi->callback_action(gi);
1945 else if (gi->type & GD_TYPE_TEXT_INPUT) /* only valid for text input */
1947 char text[MAX_GADGET_TEXTSIZE];
1948 int text_length = strlen(gi->textinput.value);
1949 int cursor_pos = gi->textinput.cursor_position;
1950 char letter = getCharFromKey(key);
1951 boolean legal_letter = (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC ?
1952 letter >= '0' && letter <= '9' :
1955 if (legal_letter && text_length < gi->textinput.size)
1957 strcpy(text, gi->textinput.value);
1958 strcpy(&gi->textinput.value[cursor_pos + 1], &text[cursor_pos]);
1959 gi->textinput.value[cursor_pos] = letter;
1960 gi->textinput.cursor_position++;
1962 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1964 else if (key == KSYM_Left && cursor_pos > 0)
1966 gi->textinput.cursor_position--;
1968 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1970 else if (key == KSYM_Right && cursor_pos < text_length)
1972 gi->textinput.cursor_position++;
1974 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1976 else if (key == KSYM_BackSpace && cursor_pos > 0)
1978 strcpy(text, gi->textinput.value);
1979 strcpy(&gi->textinput.value[cursor_pos - 1], &text[cursor_pos]);
1980 gi->textinput.cursor_position--;
1982 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1984 else if (key == KSYM_Delete && cursor_pos < text_length)
1986 strcpy(text, gi->textinput.value);
1987 strcpy(&gi->textinput.value[cursor_pos], &text[cursor_pos + 1]);
1989 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1992 else if (gi->type & GD_TYPE_TEXT_AREA) /* only valid for text area */
1994 char text[MAX_GADGET_TEXTSIZE];
1995 int text_length = strlen(gi->textarea.value);
1996 int area_ysize = gi->textarea.ysize;
1997 int cursor_x_pref = gi->textarea.cursor_x_preferred;
1998 int cursor_y = gi->textarea.cursor_y;
1999 int cursor_pos = gi->textarea.cursor_position;
2000 char letter = getCharFromKey(key);
2001 boolean legal_letter = (letter != 0);
2005 insertCharIntoTextArea(gi, letter);
2007 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2009 else if (key == KSYM_Left && cursor_pos > 0)
2011 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2013 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2015 else if (key == KSYM_Right && cursor_pos < text_length)
2017 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2019 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2021 else if (key == KSYM_Up && cursor_y > 0)
2023 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y - 1);
2024 gi->textarea.cursor_x_preferred = cursor_x_pref;
2026 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2028 else if (key == KSYM_Down && cursor_y < area_ysize - 1)
2030 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y + 1);
2031 gi->textarea.cursor_x_preferred = cursor_x_pref;
2033 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2035 else if (key == KSYM_BackSpace && cursor_pos > 0)
2037 strcpy(text, gi->textarea.value);
2038 strcpy(&gi->textarea.value[cursor_pos - 1], &text[cursor_pos]);
2040 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2042 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2044 else if (key == KSYM_Delete && cursor_pos < text_length)
2046 strcpy(text, gi->textarea.value);
2047 strcpy(&gi->textarea.value[cursor_pos], &text[cursor_pos + 1]);
2049 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2052 else if (gi->type & GD_TYPE_SELECTBOX) /* only valid for selectbox */
2054 int index = gi->selectbox.current_index;
2055 int num_values = gi->selectbox.num_values;
2057 if (key == KSYM_Up && index > 0)
2059 gi->selectbox.current_index--;
2061 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2063 else if (key == KSYM_Down && index < num_values - 1)
2065 gi->selectbox.current_index++;
2067 DrawGadget(gi, DG_PRESSED, gi->direct_draw);