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 int next_free_gadget_id = 1;
32 static boolean gadget_id_wrapped = FALSE;
34 static struct GadgetInfo *getGadgetInfoFromGadgetID(int id)
36 struct GadgetInfo *gi = gadget_list_first_entry;
38 while (gi && gi->id != id)
44 static int getNewGadgetID()
46 int id = next_free_gadget_id++;
48 if (next_free_gadget_id <= 0) /* counter overrun */
50 gadget_id_wrapped = TRUE; /* now we must check each ID */
51 next_free_gadget_id = 0;
54 if (gadget_id_wrapped)
56 next_free_gadget_id++;
57 while (getGadgetInfoFromGadgetID(next_free_gadget_id) != NULL)
58 next_free_gadget_id++;
61 if (next_free_gadget_id <= 0) /* cannot get new gadget id */
62 Error(ERR_EXIT, "too much gadgets -- this should not happen");
67 static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my)
69 struct GadgetInfo *gi;
71 /* open selectboxes may overlap other active gadgets, so check them first */
72 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
74 if (gi->mapped && gi->active &&
75 gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open &&
76 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
77 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
81 /* check all other gadgets */
82 for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
84 if (gi->mapped && gi->active &&
85 mx >= gi->x && mx < gi->x + gi->width &&
86 my >= gi->y && my < gi->y + gi->height)
93 static void setTextAreaCursorExt(struct GadgetInfo *gi, boolean set_cursor_pos)
95 char *text = gi->textarea.value;
96 int area_xsize = gi->textarea.xsize;
97 int area_ysize = gi->textarea.ysize;
98 int cursor_position = gi->textarea.cursor_position;
99 int cursor_x = gi->textarea.cursor_x;
100 int cursor_y = gi->textarea.cursor_y;
107 if (set_cursor_pos) /* x/y => position */
109 if (y == cursor_y && (x == cursor_x || (x < cursor_x && *text == '\n')))
112 else /* position => x/y */
114 if (pos == cursor_position)
118 if (x + 1 >= area_xsize || *text == '\n')
120 if (y + 1 >= area_ysize)
133 gi->textarea.cursor_x = x;
134 gi->textarea.cursor_y = y;
135 gi->textarea.cursor_x_preferred = x;
136 gi->textarea.cursor_position = pos;
139 static void setTextAreaCursorXY(struct GadgetInfo *gi, int x, int y)
141 gi->textarea.cursor_x = x;
142 gi->textarea.cursor_y = y;
144 setTextAreaCursorExt(gi, TRUE);
147 static void setTextAreaCursorPosition(struct GadgetInfo *gi, int pos)
149 gi->textarea.cursor_position = pos;
151 setTextAreaCursorExt(gi, FALSE);
154 static void default_callback_info(void *ptr)
159 static void default_callback_action(void *ptr)
164 static void DrawGadget(struct GadgetInfo *gi, boolean pressed, boolean direct)
166 struct GadgetDesign *gd;
167 int state = (pressed ? GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
168 boolean redraw_selectbox = FALSE;
173 gd = (!gi->active ? &gi->alt_design[state] :
174 gi->checked ? &gi->alt_design[state] : &gi->design[state]);
178 case GD_TYPE_NORMAL_BUTTON:
179 case GD_TYPE_CHECK_BUTTON:
180 case GD_TYPE_RADIO_BUTTON:
181 BlitBitmapOnBackground(gd->bitmap, drawto,
182 gd->x, gd->y, gi->width, gi->height,
184 if (gi->deco.design.bitmap)
185 BlitBitmap(gi->deco.design.bitmap, drawto,
186 gi->deco.design.x, gi->deco.design.y,
187 gi->deco.width, gi->deco.height,
188 gi->x + gi->deco.x + (pressed ? gi->deco.xshift : 0),
189 gi->y + gi->deco.y + (pressed ? gi->deco.yshift : 0));
192 case GD_TYPE_TEXT_BUTTON:
195 int font_nr = (gi->active ? gi->font_active : gi->font);
196 int font_width = getFontWidth(font_nr);
197 int border_x = gi->border.xsize;
198 int border_y = gi->border.ysize;
199 int text_size = strlen(gi->textbutton.value);
200 int text_start = (gi->width - text_size * font_width) / 2;
202 /* left part of gadget */
203 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
204 border_x, gi->height, gi->x, gi->y);
206 /* middle part of gadget */
207 for (i=0; i < gi->textbutton.size; i++)
208 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
209 font_width, gi->height,
210 gi->x + border_x + i * font_width, gi->y);
212 /* right part of gadget */
213 BlitBitmapOnBackground(gd->bitmap, drawto,
214 gd->x + gi->border.width - border_x, gd->y,
215 border_x, gi->height,
216 gi->x + gi->width - border_x, gi->y);
218 /* gadget text value */
220 gi->x + text_start + (pressed ? gi->deco.xshift : 0),
221 gi->y + border_y + (pressed ? gi->deco.yshift : 0),
222 gi->textbutton.value, font_nr, BLIT_MASKED);
226 case GD_TYPE_TEXT_INPUT_ALPHANUMERIC:
227 case GD_TYPE_TEXT_INPUT_NUMERIC:
231 char cursor_string[2];
232 char text[MAX_GADGET_TEXTSIZE + 1];
233 int font_nr = (pressed ? gi->font_active : gi->font);
234 int font_width = getFontWidth(font_nr);
235 int border_x = gi->border.xsize;
236 int border_y = gi->border.ysize;
238 /* left part of gadget */
239 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
240 border_x, gi->height, gi->x, gi->y);
242 /* middle part of gadget */
243 for (i=0; i < gi->textinput.size + 1; i++)
244 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
245 font_width, gi->height,
246 gi->x + border_x + i * font_width, gi->y);
248 /* right part of gadget */
249 BlitBitmapOnBackground(gd->bitmap, drawto,
250 gd->x + gi->border.width - border_x, gd->y,
251 border_x, gi->height,
252 gi->x + gi->width - border_x, gi->y);
255 strcpy(text, gi->textinput.value);
258 /* gadget text value */
260 gi->x + border_x, gi->y + border_y, text,
261 font_nr, BLIT_MASKED);
263 cursor_letter = gi->textinput.value[gi->textinput.cursor_position];
264 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
265 cursor_string[1] = '\0';
267 /* draw cursor, if active */
271 gi->textinput.cursor_position * font_width,
272 gi->y + border_y, cursor_string,
273 font_nr, BLIT_INVERSE);
277 case GD_TYPE_TEXT_AREA:
281 char cursor_string[2];
282 int font_nr = (pressed ? gi->font_active : gi->font);
283 int font_width = getFontWidth(font_nr);
284 int font_height = getFontHeight(font_nr);
285 int border_x = gi->border.xsize;
286 int border_y = gi->border.ysize;
287 int gd_height = 2 * border_y + font_height;
289 /* top left part of gadget border */
290 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
291 border_x, border_y, gi->x, gi->y);
293 /* top middle part of gadget border */
294 for (i=0; i < gi->textarea.xsize; i++)
295 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
296 font_width, border_y,
297 gi->x + border_x + i * font_width, gi->y);
299 /* top right part of gadget border */
300 BlitBitmapOnBackground(gd->bitmap, drawto,
301 gd->x + gi->border.width - border_x, gd->y,
303 gi->x + gi->width - border_x, gi->y);
305 /* left and right part of gadget border for each row */
306 for (i=0; i < gi->textarea.ysize; i++)
308 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
309 border_x, font_height,
310 gi->x, gi->y + border_y + i * font_height);
311 BlitBitmapOnBackground(gd->bitmap, drawto,
312 gd->x + gi->border.width - border_x,
314 border_x, font_height,
315 gi->x + gi->width - border_x,
316 gi->y + border_y + i * font_height);
319 /* bottom left part of gadget border */
320 BlitBitmapOnBackground(gd->bitmap, drawto,
321 gd->x, gd->y + gd_height - border_y,
323 gi->x, gi->y + gi->height - border_y);
325 /* bottom middle part of gadget border */
326 for (i=0; i < gi->textarea.xsize; i++)
327 BlitBitmapOnBackground(gd->bitmap, drawto,
329 gd->y + gd_height - border_y,
330 font_width, border_y,
331 gi->x + border_x + i * font_width,
332 gi->y + gi->height - border_y);
334 /* bottom right part of gadget border */
335 BlitBitmapOnBackground(gd->bitmap, drawto,
336 gd->x + gi->border.width - border_x,
337 gd->y + gd_height - border_y,
339 gi->x + gi->width - border_x,
340 gi->y + gi->height - border_y);
342 ClearRectangleOnBackground(drawto,
345 gi->width - 2 * border_x,
346 gi->height - 2 * border_y);
348 /* gadget text value */
349 DrawTextToTextArea(gi->x + border_x, gi->y + border_y,
350 gi->textarea.value, font_nr, gi->textarea.xsize,
351 gi->textarea.xsize, gi->textarea.ysize,
354 cursor_letter = gi->textarea.value[gi->textarea.cursor_position];
355 cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
356 cursor_string[1] = '\0';
358 /* draw cursor, if active */
361 gi->x + border_x + gi->textarea.cursor_x * font_width,
362 gi->y + border_y + gi->textarea.cursor_y * font_height,
364 font_nr, BLIT_INVERSE);
368 case GD_TYPE_SELECTBOX:
371 char text[MAX_GADGET_TEXTSIZE + 1];
372 int font_nr = (pressed ? gi->font_active : gi->font);
373 int font_width = getFontWidth(font_nr);
374 int font_height = getFontHeight(font_nr);
375 int border_x = gi->border.xsize;
376 int border_y = gi->border.ysize;
377 int button = gi->border.xsize_selectbutton;
378 int width_inner = gi->border.width - button - 2 * border_x;
379 int box_width = gi->selectbox.width;
380 int box_height = gi->selectbox.height;
382 /* left part of gadget */
383 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
384 border_x, gi->height, gi->x, gi->y);
386 /* middle part of gadget */
387 for (i=0; i < gi->selectbox.size; i++)
388 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
389 font_width, gi->height,
390 gi->x + border_x + i * font_width, gi->y);
392 /* button part of gadget */
393 BlitBitmapOnBackground(gd->bitmap, drawto,
394 gd->x + border_x + width_inner, gd->y,
396 gi->x + gi->width - border_x - button, gi->y);
398 /* right part of gadget */
399 BlitBitmapOnBackground(gd->bitmap, drawto,
400 gd->x + gi->border.width - border_x, gd->y,
401 border_x, gi->height,
402 gi->x + gi->width - border_x, gi->y);
405 strncpy(text, gi->selectbox.options[gi->selectbox.index].text,
407 text[gi->selectbox.size] = '\0';
409 /* gadget text value */
410 DrawTextExt(drawto, gi->x + border_x, gi->y + border_y, text,
411 font_nr, BLIT_MASKED);
415 if (!gi->selectbox.open)
417 gi->selectbox.open = TRUE;
418 gi->selectbox.stay_open = FALSE;
419 gi->selectbox.current_index = gi->selectbox.index;
421 /* save background under selectbox */
422 BlitBitmap(drawto, gfx.field_save_buffer,
423 gi->selectbox.x, gi->selectbox.y,
424 gi->selectbox.width, gi->selectbox.height,
425 gi->selectbox.x, gi->selectbox.y);
428 /* draw open selectbox */
430 /* top left part of gadget border */
431 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y,
433 gi->selectbox.x, gi->selectbox.y);
435 /* top middle part of gadget border */
436 for (i=0; i < gi->selectbox.size; i++)
437 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x + border_x, gd->y,
438 font_width, border_y,
439 gi->selectbox.x + border_x + i * font_width,
442 /* top button part of gadget border */
443 BlitBitmapOnBackground(gd->bitmap, drawto,
444 gd->x + border_x + width_inner, gd->y,
446 gi->selectbox.x + box_width -border_x -button,
449 /* top right part of gadget border */
450 BlitBitmapOnBackground(gd->bitmap, drawto,
451 gd->x + gi->border.width - border_x, gd->y,
453 gi->selectbox.x + box_width - border_x,
456 /* left and right part of gadget border for each row */
457 for (i=0; i < gi->selectbox.num_values; i++)
459 BlitBitmapOnBackground(gd->bitmap, drawto, gd->x, gd->y + border_y,
460 border_x, font_height,
462 gi->selectbox.y + border_y + i*font_height);
463 BlitBitmapOnBackground(gd->bitmap, drawto,
464 gd->x + gi->border.width - border_x,
466 border_x, font_height,
467 gi->selectbox.x + box_width - border_x,
468 gi->selectbox.y + border_y + i*font_height);
471 /* bottom left part of gadget border */
472 BlitBitmapOnBackground(gd->bitmap, drawto,
473 gd->x, gd->y + gi->height - border_y,
476 gi->selectbox.y + box_height - border_y);
478 /* bottom middle part of gadget border */
479 for (i=0; i < gi->selectbox.size; i++)
480 BlitBitmapOnBackground(gd->bitmap, drawto,
482 gd->y + gi->height - border_y,
483 font_width, border_y,
484 gi->selectbox.x + border_x + i * font_width,
485 gi->selectbox.y + box_height - border_y);
487 /* bottom button part of gadget border */
488 BlitBitmapOnBackground(gd->bitmap, drawto,
489 gd->x + border_x + width_inner,
490 gd->y + gi->height - border_y,
492 gi->selectbox.x + box_width -border_x -button,
493 gi->selectbox.y + box_height - border_y);
495 /* bottom right part of gadget border */
496 BlitBitmapOnBackground(gd->bitmap, drawto,
497 gd->x + gi->border.width - border_x,
498 gd->y + gi->height - border_y,
500 gi->selectbox.x + box_width - border_x,
501 gi->selectbox.y + box_height - border_y);
503 ClearRectangleOnBackground(drawto,
504 gi->selectbox.x + border_x,
505 gi->selectbox.y + border_y,
506 gi->selectbox.width - 2 * border_x,
507 gi->selectbox.height - 2 * border_y);
509 /* selectbox text values */
510 for (i=0; i < gi->selectbox.num_values; i++)
512 int mask_mode = BLIT_MASKED;
514 strncpy(text, gi->selectbox.options[i].text, gi->selectbox.size);
515 text[gi->selectbox.size] = '\0';
517 if (i == gi->selectbox.current_index)
519 FillRectangle(drawto,
520 gi->selectbox.x + border_x,
521 gi->selectbox.y + border_y + i * font_height,
522 gi->selectbox.width - 2 * border_x, font_height,
523 gi->selectbox.inverse_color);
525 /* prevent use of cursor graphic by drawing at least two chars */
527 text[gi->selectbox.size] = '\0';
529 mask_mode = BLIT_INVERSE;
533 gi->selectbox.x + border_x,
534 gi->selectbox.y + border_y + i * font_height, text,
538 redraw_selectbox = TRUE;
540 else if (gi->selectbox.open)
542 gi->selectbox.open = FALSE;
544 /* restore background under selectbox */
545 BlitBitmap(gfx.field_save_buffer, drawto,
546 gi->selectbox.x, gi->selectbox.y,
547 gi->selectbox.width, gi->selectbox.height,
548 gi->selectbox.x, gi->selectbox.y);
550 /* redraw closed selectbox */
551 DrawGadget(gi, FALSE, FALSE);
553 redraw_selectbox = TRUE;
558 case GD_TYPE_SCROLLBAR_VERTICAL:
562 int ypos = gi->y + gi->scrollbar.position;
563 int design_full = gi->width;
564 int design_body = design_full - 2 * gi->border.ysize;
565 int size_full = gi->scrollbar.size;
566 int size_body = size_full - 2 * gi->border.ysize;
567 int num_steps = size_body / design_body;
568 int step_size_remain = size_body - num_steps * design_body;
570 /* clear scrollbar area */
571 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
572 gi->width, gi->height);
574 /* upper part of gadget */
575 BlitBitmapOnBackground(gd->bitmap, drawto,
577 gi->width, gi->border.ysize,
580 /* middle part of gadget */
581 for (i=0; i < num_steps; i++)
582 BlitBitmapOnBackground(gd->bitmap, drawto,
583 gd->x, gd->y + gi->border.ysize,
584 gi->width, design_body,
586 ypos + gi->border.ysize + i * design_body);
588 /* remaining middle part of gadget */
589 if (step_size_remain > 0)
590 BlitBitmapOnBackground(gd->bitmap, drawto,
591 gd->x, gd->y + gi->border.ysize,
592 gi->width, step_size_remain,
594 ypos + gi->border.ysize
595 + num_steps * design_body);
597 /* lower part of gadget */
598 BlitBitmapOnBackground(gd->bitmap, drawto,
599 gd->x, gd->y + design_full - gi->border.ysize,
600 gi->width, gi->border.ysize,
601 xpos, ypos + size_full - gi->border.ysize);
605 case GD_TYPE_SCROLLBAR_HORIZONTAL:
608 int xpos = gi->x + gi->scrollbar.position;
610 int design_full = gi->height;
611 int design_body = design_full - 2 * gi->border.xsize;
612 int size_full = gi->scrollbar.size;
613 int size_body = size_full - 2 * gi->border.xsize;
614 int num_steps = size_body / design_body;
615 int step_size_remain = size_body - num_steps * design_body;
617 /* clear scrollbar area */
618 ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
619 gi->width, gi->height);
621 /* left part of gadget */
622 BlitBitmapOnBackground(gd->bitmap, drawto,
624 gi->border.xsize, gi->height,
627 /* middle part of gadget */
628 for (i=0; i < num_steps; i++)
629 BlitBitmapOnBackground(gd->bitmap, drawto,
630 gd->x + gi->border.xsize, gd->y,
631 design_body, gi->height,
632 xpos + gi->border.xsize + i * design_body,
635 /* remaining middle part of gadget */
636 if (step_size_remain > 0)
637 BlitBitmapOnBackground(gd->bitmap, drawto,
638 gd->x + gi->border.xsize, gd->y,
639 step_size_remain, gi->height,
640 xpos + gi->border.xsize
641 + num_steps * design_body,
644 /* right part of gadget */
645 BlitBitmapOnBackground(gd->bitmap, drawto,
646 gd->x + design_full - gi->border.xsize, gd->y,
647 gi->border.xsize, gi->height,
648 xpos + size_full - gi->border.xsize, ypos);
658 BlitBitmap(drawto, window,
659 gi->x, gi->y, gi->width, gi->height, gi->x, gi->y);
661 if (gi->type == GD_TYPE_SELECTBOX && redraw_selectbox)
662 BlitBitmap(drawto, window,
663 gi->selectbox.x, gi->selectbox.y,
664 gi->selectbox.width, gi->selectbox.height,
665 gi->selectbox.x, gi->selectbox.y);
668 redraw_mask |= (gi->x < gfx.sx + gfx.sxsize ? REDRAW_FIELD :
669 gi->y < gfx.dy + gfx.dysize ? REDRAW_DOOR_1 :
670 gi->y > gfx.vy ? REDRAW_DOOR_2 : REDRAW_DOOR_3);
673 static int get_minimal_size_for_numeric_input(int minmax_value)
675 int min_size = 1; /* value needs at least one digit */
678 /* add number of digits needed for absolute value */
679 for (i = 10; i <= ABS(minmax_value); i *= 10)
682 /* if min/max value is negative, add one digit for minus sign */
683 if (minmax_value < 0)
689 static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
696 while (tag != GDI_END)
701 gi->custom_id = va_arg(ap, int);
704 case GDI_CUSTOM_TYPE_ID:
705 gi->custom_type_id = va_arg(ap, int);
710 int max_textsize = MAX_INFO_TEXTSIZE - 1;
711 char *text = va_arg(ap, char *);
714 strncpy(gi->info_text, text, max_textsize);
718 gi->info_text[max_textsize] = '\0';
723 gi->x = va_arg(ap, int);
727 gi->y = va_arg(ap, int);
731 gi->width = va_arg(ap, int);
735 gi->height = va_arg(ap, int);
739 gi->type = va_arg(ap, unsigned int);
743 gi->state = va_arg(ap, unsigned int);
747 /* take care here: "boolean" is typedef'ed as "unsigned char",
748 which gets promoted to "int" */
749 gi->active = (boolean)va_arg(ap, int);
752 case GDI_DIRECT_DRAW:
753 /* take care here: "boolean" is typedef'ed as "unsigned char",
754 which gets promoted to "int" */
755 gi->direct_draw = (boolean)va_arg(ap, int);
759 /* take care here: "boolean" is typedef'ed as "unsigned char",
760 which gets promoted to "int" */
761 gi->checked = (boolean)va_arg(ap, int);
765 gi->radio_nr = va_arg(ap, unsigned int);
768 case GDI_NUMBER_VALUE:
769 gi->textinput.number_value = va_arg(ap, int);
770 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
771 strcpy(gi->textinput.last_value, gi->textinput.value);
772 gi->textinput.cursor_position = strlen(gi->textinput.value);
776 gi->textinput.number_min = va_arg(ap, int);
777 if (gi->textinput.number_value < gi->textinput.number_min)
779 gi->textinput.number_value = gi->textinput.number_min;
780 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
781 strcpy(gi->textinput.last_value, gi->textinput.value);
786 gi->textinput.number_max = va_arg(ap, int);
787 if (gi->textinput.number_value > gi->textinput.number_max)
789 gi->textinput.number_value = gi->textinput.number_max;
790 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
791 strcpy(gi->textinput.last_value, gi->textinput.value);
797 int max_textsize = MAX_GADGET_TEXTSIZE;
799 if (gi->textinput.size)
800 max_textsize = MIN(gi->textinput.size, MAX_GADGET_TEXTSIZE - 1);
802 strncpy(gi->textinput.value, va_arg(ap, char *), max_textsize);
803 strcpy(gi->textinput.last_value, gi->textinput.value);
805 gi->textinput.value[max_textsize] = '\0';
806 gi->textinput.cursor_position = strlen(gi->textinput.value);
808 /* same tag also used for other gadget definitions */
809 strcpy(gi->textbutton.value, gi->textinput.value);
810 strcpy(gi->textarea.value, gi->textinput.value);
811 strcpy(gi->textarea.last_value, gi->textinput.value);
817 int tag_value = va_arg(ap, int);
818 int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE - 1);
820 gi->textinput.size = max_textsize;
821 gi->textinput.value[max_textsize] = '\0';
822 strcpy(gi->textinput.last_value, gi->textinput.value);
824 /* same tag also used for other gadget definitions */
826 gi->textarea.size = max_textsize;
827 gi->textarea.value[max_textsize] = '\0';
828 strcpy(gi->textarea.last_value, gi->textinput.value);
830 gi->textbutton.size = max_textsize;
831 gi->textbutton.value[max_textsize] = '\0';
833 gi->selectbox.size = gi->textinput.size;
838 gi->font = va_arg(ap, int);
839 if (gi->font_active == 0)
840 gi->font_active = gi->font;
843 case GDI_TEXT_FONT_ACTIVE:
844 gi->font_active = va_arg(ap, int);
847 case GDI_SELECTBOX_OPTIONS:
848 gi->selectbox.options = va_arg(ap, struct ValueTextInfo *);
851 case GDI_SELECTBOX_INDEX:
852 gi->selectbox.index = va_arg(ap, int);
855 case GDI_DESIGN_UNPRESSED:
856 gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
857 gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
858 gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
861 case GDI_DESIGN_PRESSED:
862 gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
863 gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
864 gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
867 case GDI_ALT_DESIGN_UNPRESSED:
868 gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
869 gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
870 gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
873 case GDI_ALT_DESIGN_PRESSED:
874 gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
875 gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
876 gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
879 case GDI_BORDER_SIZE:
880 gi->border.xsize = va_arg(ap, int);
881 gi->border.ysize = va_arg(ap, int);
884 case GDI_BORDER_SIZE_SELECTBUTTON:
885 gi->border.xsize_selectbutton = va_arg(ap, int);
888 case GDI_DESIGN_WIDTH:
889 gi->border.width = va_arg(ap, int);
892 case GDI_DECORATION_DESIGN:
893 gi->deco.design.bitmap = va_arg(ap, Bitmap *);
894 gi->deco.design.x = va_arg(ap, int);
895 gi->deco.design.y = va_arg(ap, int);
898 case GDI_DECORATION_POSITION:
899 gi->deco.x = va_arg(ap, int);
900 gi->deco.y = va_arg(ap, int);
903 case GDI_DECORATION_SIZE:
904 gi->deco.width = va_arg(ap, int);
905 gi->deco.height = va_arg(ap, int);
908 case GDI_DECORATION_SHIFTING:
909 gi->deco.xshift = va_arg(ap, int);
910 gi->deco.yshift = va_arg(ap, int);
914 gi->event_mask = va_arg(ap, unsigned int);
918 gi->drawing.area_xsize = va_arg(ap, int);
919 gi->drawing.area_ysize = va_arg(ap, int);
921 /* determine dependent values for drawing area gadget, if needed */
922 if (gi->width == 0 && gi->height == 0 &&
923 gi->drawing.item_xsize !=0 && gi->drawing.item_ysize !=0)
925 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
926 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
928 else if (gi->drawing.item_xsize == 0 && gi->drawing.item_ysize == 0 &&
929 gi->width != 0 && gi->height != 0)
931 gi->drawing.item_xsize = gi->width / gi->drawing.area_xsize;
932 gi->drawing.item_ysize = gi->height / gi->drawing.area_ysize;
935 /* same tag also used for other gadget definitions */
936 gi->textarea.xsize = gi->drawing.area_xsize;
937 gi->textarea.ysize = gi->drawing.area_ysize;
939 if (gi->type & GD_TYPE_TEXT_AREA) /* force recalculation */
948 gi->drawing.item_xsize = va_arg(ap, int);
949 gi->drawing.item_ysize = va_arg(ap, int);
951 /* determine dependent values for drawing area gadget, if needed */
952 if (gi->width == 0 && gi->height == 0 &&
953 gi->drawing.area_xsize !=0 && gi->drawing.area_ysize !=0)
955 gi->width = gi->drawing.area_xsize * gi->drawing.item_xsize;
956 gi->height = gi->drawing.area_ysize * gi->drawing.item_ysize;
958 else if (gi->drawing.area_xsize == 0 && gi->drawing.area_ysize == 0 &&
959 gi->width != 0 && gi->height != 0)
961 gi->drawing.area_xsize = gi->width / gi->drawing.item_xsize;
962 gi->drawing.area_ysize = gi->height / gi->drawing.item_ysize;
966 case GDI_SCROLLBAR_ITEMS_MAX:
967 gi->scrollbar.items_max = va_arg(ap, int);
970 case GDI_SCROLLBAR_ITEMS_VISIBLE:
971 gi->scrollbar.items_visible = va_arg(ap, int);
974 case GDI_SCROLLBAR_ITEM_POSITION:
975 gi->scrollbar.item_position = va_arg(ap, int);
978 case GDI_CALLBACK_INFO:
979 gi->callback_info = va_arg(ap, gadget_function);
982 case GDI_CALLBACK_ACTION:
983 gi->callback_action = va_arg(ap, gadget_function);
987 Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
990 tag = va_arg(ap, int); /* read next tag */
993 /* check if gadget is complete */
994 if (gi->type != GD_TYPE_DRAWING_AREA &&
995 (!gi->design[GD_BUTTON_UNPRESSED].bitmap ||
996 !gi->design[GD_BUTTON_PRESSED].bitmap))
997 Error(ERR_EXIT, "gadget incomplete (missing Bitmap)");
999 /* adjust gadget values in relation to other gadget values */
1001 if (gi->type & GD_TYPE_TEXT_INPUT)
1003 int font_nr = gi->font_active;
1004 int font_width = getFontWidth(font_nr);
1005 int font_height = getFontHeight(font_nr);
1006 int border_xsize = gi->border.xsize;
1007 int border_ysize = gi->border.ysize;
1009 if (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC)
1011 int number_min = gi->textinput.number_min;
1012 int number_max = gi->textinput.number_max;
1013 int min_size_min = get_minimal_size_for_numeric_input(number_min);
1014 int min_size_max = get_minimal_size_for_numeric_input(number_max);
1015 int min_size = MAX(min_size_min, min_size_max);
1017 /* expand gadget text input size, if maximal value is too large */
1018 if (gi->textinput.size < min_size)
1019 gi->textinput.size = min_size;
1022 gi->width = 2 * border_xsize + (gi->textinput.size + 1) * font_width;
1023 gi->height = 2 * border_ysize + font_height;
1026 if (gi->type & GD_TYPE_SELECTBOX)
1028 int font_nr = gi->font_active;
1029 int font_width = getFontWidth(font_nr);
1030 int font_height = getFontHeight(font_nr);
1031 int border_xsize = gi->border.xsize;
1032 int border_ysize = gi->border.ysize;
1033 int button_size = gi->border.xsize_selectbutton;
1034 int bottom_screen_border = gfx.sy + gfx.sysize - font_height;
1038 gi->width = 2 * border_xsize + gi->textinput.size*font_width +button_size;
1039 gi->height = 2 * border_ysize + font_height;
1041 if (gi->selectbox.options == NULL)
1042 Error(ERR_EXIT, "selectbox gadget incomplete (missing options array)");
1044 gi->selectbox.num_values = 0;
1045 while (gi->selectbox.options[gi->selectbox.num_values].text != NULL)
1046 gi->selectbox.num_values++;
1048 /* calculate values for open selectbox */
1049 gi->selectbox.width = gi->width;
1050 gi->selectbox.height =
1051 2 * border_ysize + gi->selectbox.num_values * font_height;
1053 gi->selectbox.x = gi->x;
1054 gi->selectbox.y = gi->y + gi->height;
1055 if (gi->selectbox.y + gi->selectbox.height > bottom_screen_border)
1056 gi->selectbox.y = gi->y - gi->selectbox.height;
1057 if (gi->selectbox.y < 0)
1058 gi->selectbox.y = bottom_screen_border - gi->selectbox.height;
1060 getFontCharSource(font_nr, FONT_ASCII_CURSOR, &src_bitmap, &src_x, &src_y);
1061 src_x += font_width / 2;
1062 src_y += font_height / 2;
1064 /* there may be esoteric cases with missing or too small font bitmap */
1065 if (src_bitmap != NULL &&
1066 src_x < src_bitmap->width && src_y < src_bitmap->height)
1067 gi->selectbox.inverse_color = GetPixel(src_bitmap, src_x, src_y);
1069 /* always start with closed selectbox */
1070 gi->selectbox.open = FALSE;
1073 if (gi->type & GD_TYPE_TEXT_INPUT_NUMERIC)
1075 struct GadgetTextInput *text = &gi->textinput;
1076 int value = text->number_value;
1078 text->number_value = (value < text->number_min ? text->number_min :
1079 value > text->number_max ? text->number_max :
1082 sprintf(text->value, "%d", text->number_value);
1085 if (gi->type & GD_TYPE_TEXT_BUTTON)
1087 int font_nr = gi->font_active;
1088 int font_width = getFontWidth(font_nr);
1089 int font_height = getFontHeight(font_nr);
1090 int border_xsize = gi->border.xsize;
1091 int border_ysize = gi->border.ysize;
1093 gi->width = 2 * border_xsize + gi->textbutton.size * font_width;
1094 gi->height = 2 * border_ysize + font_height;
1097 if (gi->type & GD_TYPE_SCROLLBAR)
1099 struct GadgetScrollbar *gs = &gi->scrollbar;
1100 int scrollbar_size_cmp;
1102 if (gi->width == 0 || gi->height == 0 ||
1103 gs->items_max == 0 || gs->items_visible == 0)
1104 Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
1106 /* calculate internal scrollbar values */
1107 gs->size_min = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1108 gi->width : gi->height);
1109 gs->size_max = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
1110 gi->height : gi->width);
1112 scrollbar_size_cmp = gs->size_max * gs->items_visible / gs->items_max;
1113 gs->size = MAX(scrollbar_size_cmp, gs->size_min);
1114 gs->size_max_cmp = (gs->size_max - (gs->size - scrollbar_size_cmp));
1116 gs->position = gs->size_max_cmp * gs->item_position / gs->items_max;
1117 gs->position_max = gs->size_max - gs->size;
1118 gs->correction = gs->size_max / gs->items_max / 2;
1120 /* finetuning for maximal right/bottom position */
1121 if (gs->item_position == gs->items_max - gs->items_visible)
1122 gs->position = gs->position_max;
1125 if (gi->type & GD_TYPE_TEXT_AREA)
1127 int font_nr = gi->font_active;
1128 int font_width = getFontWidth(font_nr);
1129 int font_height = getFontHeight(font_nr);
1130 int border_xsize = gi->border.xsize;
1131 int border_ysize = gi->border.ysize;
1133 if (gi->width == 0 || gi->height == 0)
1135 gi->width = 2 * border_xsize + gi->textarea.xsize * font_width;
1136 gi->height = 2 * border_ysize + gi->textarea.ysize * font_height;
1140 gi->textarea.xsize = (gi->width - 2 * border_xsize) / font_width;
1141 gi->textarea.ysize = (gi->height - 2 * border_ysize) / font_height;
1146 void ModifyGadget(struct GadgetInfo *gi, int first_tag, ...)
1150 va_start(ap, first_tag);
1151 HandleGadgetTags(gi, first_tag, ap);
1157 void RedrawGadget(struct GadgetInfo *gi)
1163 DrawGadget(gi, gi->state, gi->direct_draw);
1166 struct GadgetInfo *CreateGadget(int first_tag, ...)
1168 struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
1171 /* always start with reliable default values */
1172 new_gadget->id = getNewGadgetID();
1173 new_gadget->callback_info = default_callback_info;
1174 new_gadget->callback_action = default_callback_action;
1175 new_gadget->active = TRUE;
1176 new_gadget->direct_draw = TRUE;
1178 new_gadget->next = NULL;
1180 va_start(ap, first_tag);
1181 HandleGadgetTags(new_gadget, first_tag, ap);
1184 /* insert new gadget into global gadget list */
1185 if (gadget_list_last_entry)
1187 gadget_list_last_entry->next = new_gadget;
1188 gadget_list_last_entry = gadget_list_last_entry->next;
1191 gadget_list_first_entry = gadget_list_last_entry = new_gadget;
1196 void FreeGadget(struct GadgetInfo *gi)
1198 struct GadgetInfo *gi_previous = gadget_list_first_entry;
1200 while (gi_previous != NULL && gi_previous->next != gi)
1201 gi_previous = gi_previous->next;
1203 if (gi == gadget_list_first_entry)
1204 gadget_list_first_entry = gi->next;
1206 if (gi == gadget_list_last_entry)
1207 gadget_list_last_entry = gi_previous;
1209 if (gi_previous != NULL)
1210 gi_previous->next = gi->next;
1215 static void CheckRangeOfNumericInputGadget(struct GadgetInfo *gi)
1217 if (gi->type != GD_TYPE_TEXT_INPUT_NUMERIC)
1220 gi->textinput.number_value = atoi(gi->textinput.value);
1222 if (gi->textinput.number_value < gi->textinput.number_min)
1223 gi->textinput.number_value = gi->textinput.number_min;
1224 if (gi->textinput.number_value > gi->textinput.number_max)
1225 gi->textinput.number_value = gi->textinput.number_max;
1227 sprintf(gi->textinput.value, "%d", gi->textinput.number_value);
1229 if (gi->textinput.cursor_position < 0)
1230 gi->textinput.cursor_position = 0;
1231 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1232 gi->textinput.cursor_position = strlen(gi->textinput.value);
1235 /* global pointer to gadget actually in use (when mouse button pressed) */
1236 static struct GadgetInfo *last_gi = NULL;
1238 static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
1240 if (gi == NULL || gi->mapped)
1246 DrawGadget(gi, DG_UNPRESSED, DG_BUFFERED);
1249 void MapGadget(struct GadgetInfo *gi)
1251 MapGadgetExt(gi, TRUE);
1254 void UnmapGadget(struct GadgetInfo *gi)
1256 if (gi == NULL || !gi->mapped)
1265 #define MAX_NUM_GADGETS 1024
1266 #define MULTIMAP_UNMAP (1 << 0)
1267 #define MULTIMAP_REMAP (1 << 1)
1268 #define MULTIMAP_REDRAW (1 << 2)
1269 #define MULTIMAP_PLAYFIELD (1 << 3)
1270 #define MULTIMAP_DOOR_1 (1 << 4)
1271 #define MULTIMAP_DOOR_2 (1 << 5)
1272 #define MULTIMAP_ALL (MULTIMAP_PLAYFIELD | \
1276 static void MultiMapGadgets(int mode)
1278 struct GadgetInfo *gi = gadget_list_first_entry;
1279 static boolean map_state[MAX_NUM_GADGETS];
1284 if ((mode & MULTIMAP_PLAYFIELD &&
1285 gi->x < gfx.sx + gfx.sxsize) ||
1286 (mode & MULTIMAP_DOOR_1 &&
1287 gi->x >= gfx.dx && gi->y < gfx.dy + gfx.dysize) ||
1288 (mode & MULTIMAP_DOOR_2 &&
1289 gi->x >= gfx.dx && gi->y > gfx.dy + gfx.dysize) ||
1290 (mode & MULTIMAP_ALL) == MULTIMAP_ALL)
1292 if (mode & MULTIMAP_UNMAP)
1294 map_state[map_count++ % MAX_NUM_GADGETS] = gi->mapped;
1299 if (map_state[map_count++ % MAX_NUM_GADGETS])
1300 MapGadgetExt(gi, (mode & MULTIMAP_REDRAW));
1308 void UnmapAllGadgets()
1310 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_UNMAP);
1313 void RemapAllGadgets()
1315 MultiMapGadgets(MULTIMAP_ALL | MULTIMAP_REMAP);
1318 boolean anyTextInputGadgetActive()
1320 return (last_gi && (last_gi->type & GD_TYPE_TEXT_INPUT) && last_gi->mapped);
1323 boolean anyTextAreaGadgetActive()
1325 return (last_gi && (last_gi->type & GD_TYPE_TEXT_AREA) && last_gi->mapped);
1328 boolean anySelectboxGadgetActive()
1330 return (last_gi && (last_gi->type & GD_TYPE_SELECTBOX) && last_gi->mapped);
1333 boolean anyScrollbarGadgetActive()
1335 return (last_gi && (last_gi->type & GD_TYPE_SCROLLBAR) && last_gi->mapped);
1338 boolean anyTextGadgetActive()
1340 return (anyTextInputGadgetActive() ||
1341 anyTextAreaGadgetActive() ||
1342 anySelectboxGadgetActive());
1345 static boolean insideSelectboxLine(struct GadgetInfo *gi, int mx, int my)
1347 return(gi != NULL &&
1348 gi->type & GD_TYPE_SELECTBOX &&
1349 mx >= gi->x && mx < gi->x + gi->width &&
1350 my >= gi->y && my < gi->y + gi->height);
1353 static boolean insideSelectboxArea(struct GadgetInfo *gi, int mx, int my)
1355 return(gi != NULL &&
1356 gi->type & GD_TYPE_SELECTBOX &&
1357 mx >= gi->selectbox.x && mx < gi->selectbox.x + gi->selectbox.width &&
1358 my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height);
1361 void ClickOnGadget(struct GadgetInfo *gi, int button)
1366 /* simulate releasing mouse button over last gadget, if still pressed */
1368 HandleGadgets(-1, -1, 0);
1370 /* simulate pressing mouse button over specified gadget */
1371 HandleGadgets(gi->x, gi->y, button);
1373 /* simulate releasing mouse button over specified gadget */
1374 HandleGadgets(gi->x, gi->y, 0);
1377 boolean HandleGadgets(int mx, int my, int button)
1379 static struct GadgetInfo *last_info_gi = NULL;
1380 static unsigned long pressed_delay = 0;
1381 static int last_button = 0;
1382 static int last_mx = 0, last_my = 0;
1383 static int pressed_mx = 0, pressed_my = 0;
1384 int scrollbar_mouse_pos = 0;
1385 struct GadgetInfo *new_gi, *gi;
1386 boolean press_event;
1387 boolean release_event;
1388 boolean mouse_moving;
1389 boolean mouse_inside_select_line;
1390 boolean mouse_inside_select_area;
1391 boolean mouse_released_where_pressed;
1392 boolean gadget_pressed;
1393 boolean gadget_pressed_repeated;
1394 boolean gadget_pressed_off_borders;
1395 boolean gadget_pressed_inside_select_line;
1396 boolean gadget_moving;
1397 boolean gadget_moving_inside;
1398 boolean gadget_moving_off_borders;
1399 boolean gadget_released;
1400 boolean gadget_released_inside;
1401 boolean gadget_released_inside_select_line;
1402 boolean gadget_released_inside_select_area;
1403 boolean gadget_released_off_borders;
1404 boolean changed_position = FALSE;
1406 /* check if there are any gadgets defined */
1407 if (gadget_list_first_entry == NULL)
1410 /* simulated release of mouse button over last gadget */
1411 if (mx == -1 && my == -1 && button == 0)
1417 /* check which gadget is under the mouse pointer */
1418 new_gi = getGadgetInfoFromMousePosition(mx, my);
1420 /* check if button state has changed since last invocation */
1421 press_event = (button != 0 && last_button == 0);
1422 release_event = (button == 0 && last_button != 0);
1423 last_button = button;
1425 /* check if mouse has been moved since last invocation */
1426 mouse_moving = ((mx != last_mx || my != last_my) && motion_status);
1430 if (press_event && new_gi != last_gi)
1436 mouse_released_where_pressed =
1437 (release_event && mx == pressed_mx && my == pressed_my);
1439 mouse_inside_select_line = insideSelectboxLine(new_gi, mx, my);
1440 mouse_inside_select_area = insideSelectboxArea(new_gi, mx, my);
1442 gadget_pressed_off_borders = (press_event && new_gi != last_gi);
1444 gadget_pressed_inside_select_line =
1445 (press_event && new_gi != NULL &&
1446 new_gi->type & GD_TYPE_SELECTBOX && new_gi->selectbox.open &&
1447 insideSelectboxLine(new_gi, mx, my));
1449 /* if mouse button pressed outside text or selectbox gadget, deactivate it */
1450 if (anyTextGadgetActive() &&
1451 (gadget_pressed_off_borders ||
1452 (gadget_pressed_inside_select_line && !mouse_inside_select_area)))
1454 struct GadgetInfo *gi = last_gi;
1455 boolean gadget_changed = (gi->event_mask & GD_EVENT_TEXT_LEAVING);
1457 /* check if text gadget has changed its value */
1458 if (gi->type & GD_TYPE_TEXT_INPUT)
1460 CheckRangeOfNumericInputGadget(gi);
1462 if (strcmp(gi->textinput.value, gi->textinput.last_value) != 0)
1463 strcpy(gi->textinput.last_value, gi->textinput.value);
1465 gadget_changed = FALSE;
1468 /* selectbox does not change its value when closed by clicking outside */
1469 if (gi->type & GD_TYPE_SELECTBOX)
1470 gadget_changed = FALSE;
1472 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1474 gi->event.type = GD_EVENT_TEXT_LEAVING;
1476 if (gadget_changed && !(gi->type & GD_TYPE_SELECTBOX))
1477 gi->callback_action(gi);
1481 if (gadget_pressed_inside_select_line)
1486 (button != 0 && last_gi == NULL && new_gi != NULL && press_event);
1487 gadget_pressed_repeated =
1488 (button != 0 && last_gi != NULL && new_gi == last_gi);
1490 gadget_released = (release_event && last_gi != NULL);
1491 gadget_released_inside = (gadget_released && new_gi == last_gi);
1492 gadget_released_off_borders = (gadget_released && new_gi != last_gi);
1494 gadget_moving = (button != 0 && last_gi != NULL && mouse_moving);
1495 gadget_moving_inside = (gadget_moving && new_gi == last_gi);
1496 gadget_moving_off_borders = (gadget_moving && new_gi != last_gi);
1498 /* when handling selectbox, set additional state values */
1499 if (gadget_released_inside && (last_gi->type & GD_TYPE_SELECTBOX))
1501 gadget_released_inside_select_line = insideSelectboxLine(last_gi, mx, my);
1502 gadget_released_inside_select_area = insideSelectboxArea(last_gi, mx, my);
1506 gadget_released_inside_select_line = FALSE;
1507 gadget_released_inside_select_area = FALSE;
1510 /* if new gadget pressed, store this gadget */
1514 /* 'gi' is actually handled gadget */
1517 /* if gadget is scrollbar, choose mouse position value */
1518 if (gi && gi->type & GD_TYPE_SCROLLBAR)
1519 scrollbar_mouse_pos =
1520 (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx - gi->x : my - gi->y);
1522 /* if mouse button released, no gadget needs to be handled anymore */
1523 if (gadget_released)
1525 if (gi->type & GD_TYPE_SELECTBOX &&
1526 (mouse_released_where_pressed ||
1527 !gadget_released_inside_select_area)) /* selectbox stays open */
1529 gi->selectbox.stay_open = TRUE;
1533 else if (!(gi->type & GD_TYPE_TEXT_INPUT ||
1534 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1538 /* modify event position values even if no gadget is pressed */
1539 if (button == 0 && !release_event)
1544 int last_x = gi->event.x;
1545 int last_y = gi->event.y;
1547 gi->event.x = mx - gi->x;
1548 gi->event.y = my - gi->y;
1550 if (gi->type == GD_TYPE_DRAWING_AREA)
1552 gi->event.x /= gi->drawing.item_xsize;
1553 gi->event.y /= gi->drawing.item_ysize;
1555 if (last_x != gi->event.x || last_y != gi->event.y)
1556 changed_position = TRUE;
1558 else if (gi->type & GD_TYPE_TEXT_INPUT && button != 0 && !motion_status)
1560 int old_cursor_position = gi->textinput.cursor_position;
1562 /* if mouse button pressed inside activated text gadget, set cursor */
1563 gi->textinput.cursor_position =
1564 (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1566 if (gi->textinput.cursor_position < 0)
1567 gi->textinput.cursor_position = 0;
1568 else if (gi->textinput.cursor_position > strlen(gi->textinput.value))
1569 gi->textinput.cursor_position = strlen(gi->textinput.value);
1571 if (gi->textinput.cursor_position != old_cursor_position)
1572 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1574 else if (gi->type & GD_TYPE_TEXT_AREA && button != 0 && !motion_status)
1576 int old_cursor_position = gi->textarea.cursor_position;
1577 int x = (mx - gi->x - gi->border.xsize) / getFontWidth(gi->font);
1578 int y = (my - gi->y - gi->border.ysize) / getFontHeight(gi->font);
1580 x = (x < 0 ? 0 : x >= gi->textarea.xsize ? gi->textarea.xsize - 1 : x);
1581 y = (y < 0 ? 0 : y >= gi->textarea.ysize ? gi->textarea.ysize - 1 : y);
1583 setTextAreaCursorXY(gi, x, y);
1585 if (gi->textarea.cursor_position != old_cursor_position)
1586 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1588 else if (gi->type & GD_TYPE_SELECTBOX && gi->selectbox.open)
1590 int old_index = gi->selectbox.current_index;
1592 /* if mouse moving inside activated selectbox, select value */
1593 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1594 gi->selectbox.current_index =
1595 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1597 if (gi->selectbox.current_index < 0)
1598 gi->selectbox.current_index = 0;
1599 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1600 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1602 if (gi->selectbox.current_index != old_index)
1603 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1607 /* handle gadget popup info text */
1608 if (last_info_gi != new_gi ||
1609 (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
1611 if (new_gi != NULL && (button == 0 || new_gi == last_gi))
1613 new_gi->event.type = GD_EVENT_INFO_ENTERING;
1614 new_gi->callback_info(new_gi);
1616 else if (last_info_gi != NULL)
1618 last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
1619 last_info_gi->callback_info(last_info_gi);
1622 last_info_gi = new_gi;
1627 if (gi->type == GD_TYPE_CHECK_BUTTON)
1629 gi->checked = !gi->checked;
1631 else if (gi->type == GD_TYPE_RADIO_BUTTON)
1633 struct GadgetInfo *rgi = gadget_list_first_entry;
1638 rgi->type == GD_TYPE_RADIO_BUTTON &&
1639 rgi->radio_nr == gi->radio_nr &&
1642 rgi->checked = FALSE;
1643 DrawGadget(rgi, DG_UNPRESSED, rgi->direct_draw);
1651 else if (gi->type & GD_TYPE_SCROLLBAR)
1655 if (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL)
1666 if (mpos >= gpos + gi->scrollbar.position &&
1667 mpos < gpos + gi->scrollbar.position + gi->scrollbar.size)
1669 /* drag scrollbar */
1670 gi->scrollbar.drag_position =
1671 scrollbar_mouse_pos - gi->scrollbar.position;
1675 /* click scrollbar one scrollbar length up/left or down/right */
1677 struct GadgetScrollbar *gs = &gi->scrollbar;
1678 int old_item_position = gs->item_position;
1680 changed_position = FALSE;
1682 gs->item_position +=
1683 gs->items_visible * (mpos < gpos + gi->scrollbar.position ? -1 : +1);
1685 if (gs->item_position < 0)
1686 gs->item_position = 0;
1687 else if (gs->item_position > gs->items_max - gs->items_visible)
1688 gs->item_position = gs->items_max - gs->items_visible;
1690 if (old_item_position != gs->item_position)
1692 gi->event.item_position = gs->item_position;
1693 changed_position = TRUE;
1696 ModifyGadget(gi, GDI_SCROLLBAR_ITEM_POSITION, gs->item_position,
1699 gi->state = GD_BUTTON_UNPRESSED;
1700 gi->event.type = GD_EVENT_MOVING;
1701 gi->event.off_borders = FALSE;
1703 if (gi->event_mask & GD_EVENT_MOVING && changed_position)
1704 gi->callback_action(gi);
1706 /* don't handle this scrollbar anymore while mouse button pressed */
1713 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1715 gi->state = GD_BUTTON_PRESSED;
1716 gi->event.type = GD_EVENT_PRESSED;
1717 gi->event.button = button;
1718 gi->event.off_borders = FALSE;
1720 /* initialize delay counter */
1721 DelayReached(&pressed_delay, 0);
1723 if (gi->event_mask & GD_EVENT_PRESSED)
1724 gi->callback_action(gi);
1727 if (gadget_pressed_repeated)
1729 gi->event.type = GD_EVENT_PRESSED;
1731 if (gi->event_mask & GD_EVENT_REPEATED &&
1732 DelayReached(&pressed_delay, GADGET_FRAME_DELAY))
1733 gi->callback_action(gi);
1738 if (gi->type & GD_TYPE_BUTTON)
1740 if (gadget_moving_inside && gi->state == GD_BUTTON_UNPRESSED)
1741 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1742 else if (gadget_moving_off_borders && gi->state == GD_BUTTON_PRESSED)
1743 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1745 else if (gi->type & GD_TYPE_SELECTBOX)
1747 int old_index = gi->selectbox.current_index;
1749 /* if mouse moving inside activated selectbox, select value */
1750 if (my >= gi->selectbox.y && my < gi->selectbox.y + gi->selectbox.height)
1751 gi->selectbox.current_index =
1752 (my - gi->selectbox.y - gi->border.ysize) / getFontHeight(gi->font);
1754 if (gi->selectbox.current_index < 0)
1755 gi->selectbox.current_index = 0;
1756 else if (gi->selectbox.current_index > gi->selectbox.num_values - 1)
1757 gi->selectbox.current_index = gi->selectbox.num_values - 1;
1759 if (gi->selectbox.current_index != old_index)
1760 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1762 else if (gi->type & GD_TYPE_SCROLLBAR)
1764 struct GadgetScrollbar *gs = &gi->scrollbar;
1765 int old_item_position = gs->item_position;
1767 gs->position = scrollbar_mouse_pos - gs->drag_position;
1769 /* make sure to always precisely reach end positions when dragging */
1770 if (gs->position <= 0)
1773 gs->item_position = 0;
1775 else if (gs->position >= gs->position_max)
1777 gs->position = gs->position_max;
1778 gs->item_position = gs->items_max - gs->items_visible;
1783 gs->items_max * (gs->position + gs->correction) / gs->size_max_cmp;
1786 if (gs->item_position < 0)
1787 gs->item_position = 0;
1788 if (gs->item_position > gs->items_max - 1)
1789 gs->item_position = gs->items_max - 1;
1791 if (old_item_position != gs->item_position)
1793 gi->event.item_position = gs->item_position;
1794 changed_position = TRUE;
1797 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1800 gi->state = (gadget_moving_inside || gi->type & GD_TYPE_SCROLLBAR ?
1801 GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
1802 gi->event.type = GD_EVENT_MOVING;
1803 gi->event.off_borders = gadget_moving_off_borders;
1805 if (gi->event_mask & GD_EVENT_MOVING && changed_position &&
1806 (gadget_moving_inside || gi->event_mask & GD_EVENT_OFF_BORDERS))
1807 gi->callback_action(gi);
1810 if (gadget_released_inside)
1812 boolean deactivate_gadget = TRUE;
1813 boolean gadget_changed = TRUE;
1815 if (gi->type & GD_TYPE_SELECTBOX)
1817 if (mouse_released_where_pressed ||
1818 !gadget_released_inside_select_area) /* selectbox stays open */
1820 deactivate_gadget = FALSE;
1821 gadget_changed = FALSE;
1823 else if (gi->selectbox.index != gi->selectbox.current_index)
1824 gi->selectbox.index = gi->selectbox.current_index;
1826 gadget_changed = FALSE;
1829 if (deactivate_gadget &&
1830 !(gi->type & GD_TYPE_TEXT_INPUT ||
1831 gi->type & GD_TYPE_TEXT_AREA)) /* text input stays open */
1832 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1834 gi->state = GD_BUTTON_UNPRESSED;
1835 gi->event.type = GD_EVENT_RELEASED;
1837 if ((gi->event_mask & GD_EVENT_RELEASED) && gadget_changed)
1839 gi->callback_action(gi);
1843 if (gadget_released_off_borders)
1845 if (gi->type & GD_TYPE_SCROLLBAR)
1846 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1848 gi->event.type = GD_EVENT_RELEASED;
1850 if (gi->event_mask & GD_EVENT_RELEASED &&
1851 gi->event_mask & GD_EVENT_OFF_BORDERS)
1852 gi->callback_action(gi);
1855 /* handle gadgets unmapped/mapped between pressing and releasing */
1856 if (release_event && !gadget_released && new_gi)
1857 new_gi->state = GD_BUTTON_UNPRESSED;
1859 return (gadget_pressed || gadget_pressed_repeated ||
1860 gadget_released || gadget_moving);
1863 static void insertCharIntoTextArea(struct GadgetInfo *gi, char c)
1865 char text[MAX_GADGET_TEXTSIZE];
1866 int cursor_position = gi->textarea.cursor_position;
1868 if (strlen(gi->textarea.value) == MAX_GADGET_TEXTSIZE) /* no space left */
1871 strcpy(text, gi->textarea.value);
1872 strcpy(&gi->textarea.value[cursor_position + 1], &text[cursor_position]);
1873 gi->textarea.value[cursor_position] = c;
1875 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
1878 boolean HandleGadgetsKeyInput(Key key)
1880 struct GadgetInfo *gi = last_gi;
1882 if (gi == NULL || !gi->mapped ||
1883 !(gi->type & GD_TYPE_TEXT_INPUT ||
1884 gi->type & GD_TYPE_TEXT_AREA ||
1885 gi->type & GD_TYPE_SELECTBOX))
1888 if (key == KSYM_Return) /* valid for both text input and selectbox */
1890 boolean gadget_changed = (gi->event_mask & GD_EVENT_TEXT_RETURN);
1892 if (gi->type & GD_TYPE_TEXT_INPUT)
1894 CheckRangeOfNumericInputGadget(gi);
1896 if (strcmp(gi->textinput.value, gi->textinput.last_value) != 0)
1897 strcpy(gi->textinput.last_value, gi->textinput.value);
1899 gadget_changed = FALSE;
1901 else if (gi->type & GD_TYPE_SELECTBOX)
1903 if (gi->selectbox.index != gi->selectbox.current_index)
1904 gi->selectbox.index = gi->selectbox.current_index;
1906 gadget_changed = FALSE;
1909 if (gi->type & GD_TYPE_TEXT_AREA)
1911 insertCharIntoTextArea(gi, '\n');
1913 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1917 DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
1919 gi->event.type = GD_EVENT_TEXT_RETURN;
1925 gi->callback_action(gi);
1927 else if (gi->type & GD_TYPE_TEXT_INPUT) /* only valid for text input */
1929 char text[MAX_GADGET_TEXTSIZE];
1930 int text_length = strlen(gi->textinput.value);
1931 int cursor_pos = gi->textinput.cursor_position;
1932 char letter = getCharFromKey(key);
1933 boolean legal_letter = (gi->type == GD_TYPE_TEXT_INPUT_NUMERIC ?
1934 letter >= '0' && letter <= '9' :
1937 if (legal_letter && text_length < gi->textinput.size)
1939 strcpy(text, gi->textinput.value);
1940 strcpy(&gi->textinput.value[cursor_pos + 1], &text[cursor_pos]);
1941 gi->textinput.value[cursor_pos] = letter;
1942 gi->textinput.cursor_position++;
1944 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1946 else if (key == KSYM_Left && cursor_pos > 0)
1948 gi->textinput.cursor_position--;
1950 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1952 else if (key == KSYM_Right && cursor_pos < text_length)
1954 gi->textinput.cursor_position++;
1956 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1958 else if (key == KSYM_BackSpace && cursor_pos > 0)
1960 strcpy(text, gi->textinput.value);
1961 strcpy(&gi->textinput.value[cursor_pos - 1], &text[cursor_pos]);
1962 gi->textinput.cursor_position--;
1964 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1966 else if (key == KSYM_Delete && cursor_pos < text_length)
1968 strcpy(text, gi->textinput.value);
1969 strcpy(&gi->textinput.value[cursor_pos], &text[cursor_pos + 1]);
1971 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1974 else if (gi->type & GD_TYPE_TEXT_AREA) /* only valid for text area */
1976 char text[MAX_GADGET_TEXTSIZE];
1977 int text_length = strlen(gi->textarea.value);
1978 int area_ysize = gi->textarea.ysize;
1979 int cursor_x_pref = gi->textarea.cursor_x_preferred;
1980 int cursor_y = gi->textarea.cursor_y;
1981 int cursor_pos = gi->textarea.cursor_position;
1982 char letter = getCharFromKey(key);
1983 boolean legal_letter = (letter != 0);
1987 insertCharIntoTextArea(gi, letter);
1989 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1991 else if (key == KSYM_Left && cursor_pos > 0)
1993 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
1995 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
1997 else if (key == KSYM_Right && cursor_pos < text_length)
1999 setTextAreaCursorPosition(gi, gi->textarea.cursor_position + 1);
2001 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2003 else if (key == KSYM_Up && cursor_y > 0)
2005 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y - 1);
2006 gi->textarea.cursor_x_preferred = cursor_x_pref;
2008 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2010 else if (key == KSYM_Down && cursor_y < area_ysize - 1)
2012 setTextAreaCursorXY(gi, cursor_x_pref, cursor_y + 1);
2013 gi->textarea.cursor_x_preferred = cursor_x_pref;
2015 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2017 else if (key == KSYM_BackSpace && cursor_pos > 0)
2019 strcpy(text, gi->textarea.value);
2020 strcpy(&gi->textarea.value[cursor_pos - 1], &text[cursor_pos]);
2022 setTextAreaCursorPosition(gi, gi->textarea.cursor_position - 1);
2024 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2026 else if (key == KSYM_Delete && cursor_pos < text_length)
2028 strcpy(text, gi->textarea.value);
2029 strcpy(&gi->textarea.value[cursor_pos], &text[cursor_pos + 1]);
2031 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2034 else if (gi->type & GD_TYPE_SELECTBOX) /* only valid for selectbox */
2036 int index = gi->selectbox.current_index;
2037 int num_values = gi->selectbox.num_values;
2039 if (key == KSYM_Up && index > 0)
2041 gi->selectbox.current_index--;
2043 DrawGadget(gi, DG_PRESSED, gi->direct_draw);
2045 else if (key == KSYM_Down && index < num_values - 1)
2047 gi->selectbox.current_index++;
2049 DrawGadget(gi, DG_PRESSED, gi->direct_draw);