1 /*
2 Copyright (C) 2012 2014 Johan Mattsson
3
4 This library is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as
6 published by the Free Software Foundation; either version 3 of the
7 License, or (at your option) any later version.
8
9 This library is distributed in the hope that it will be useful, but
10 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13 */
14
15 using Cairo;
16
17 namespace BirdFont {
18
19 /** A display with all glyphs present in this font. */
20 public class OverView : FontDisplay {
21 public WidgetAllocation allocation = new WidgetAllocation ();
22
23 OverViewItem selected_item = new OverViewItem (null, '\0', 0, 0);
24
25 public Gee.ArrayList<GlyphCollection> copied_glyphs = new Gee.ArrayList<GlyphCollection> ();
26 public Gee.ArrayList<GlyphCollection> selected_items = new Gee.ArrayList<GlyphCollection> ();
27
28 int selected = 0;
29 int first_visible = 0;
30 int rows = 0;
31 int items_per_row = 0;
32
33 double view_offset_y = 0;
34 double view_offset_x = 0;
35
36 public signal void open_new_glyph_signal (unichar c);
37 public signal void open_glyph_signal (GlyphCollection c);
38
39 public GlyphRange glyph_range;
40 string search_query = "";
41
42 Gee.ArrayList<OverViewItem> visible_items = new Gee.ArrayList<OverViewItem> ();
43
44 /** List of undo commands. */
45 Gee.ArrayList<OverViewUndoItem> undo_items = new Gee.ArrayList<OverViewUndoItem> ();
46 Gee.ArrayList<OverViewUndoItem> redo_items = new Gee.ArrayList<OverViewUndoItem> ();
47
48 /** Show all characters that has been drawn. */
49 public bool all_available = true;
50
51 /** Show unicode database info. */
52 CharacterInfo? character_info = null;
53
54 double scroll_size = 1;
55
56 public OverView (GlyphRange? range = null, bool open_selected = true) {
57 GlyphRange gr;
58
59 if (range == null) {
60 gr = new GlyphRange ();
61 set_glyph_range (gr);
62 }
63
64 if (open_selected) {
65 this.open_glyph_signal.connect ((glyph_collection) => {
66 TabBar tabs = MainWindow.get_tab_bar ();
67 string n = glyph_collection.get_current ().name;
68 bool selected = tabs.select_char (n);
69 GlyphCanvas canvas;
70 Glyph g = glyph_collection.get_current ();
71
72 if (!selected) {
73 canvas = MainWindow.get_glyph_canvas ();
74 tabs.add_tab (g, true, glyph_collection);
75 canvas.set_current_glyph_collection (glyph_collection);
76 set_initial_zoom ();
77 }
78 });
79
80 this.open_new_glyph_signal.connect ((character) => {
81 create_new_glyph (character);
82 });
83 }
84
85 IdleSource idle = new IdleSource ();
86
87 idle.set_callback (() => {
88 selected_canvas ();
89 return false;
90 });
91
92 idle.attach (null);
93
94 update_scrollbar ();
95 reset_zoom ();
96 }
97
98 public GlyphCollection create_new_glyph (unichar character) {
99 StringBuilder name = new StringBuilder ();
100 TabBar tabs = MainWindow.get_tab_bar ();
101 bool selected;
102 Glyph glyph;
103 GlyphCollection glyph_collection = MainWindow.get_current_glyph_collection ();
104 GlyphCanvas canvas;
105
106 name.append_unichar (character);
107 selected = tabs.select_char (name.str);
108
109 if (!selected) {
110 glyph_collection = add_character_to_font (character);
111
112 glyph = glyph_collection.get_current ();
113 tabs.add_tab (glyph, true, glyph_collection);
114
115 selected_items.add (glyph_collection);
116
117 canvas = MainWindow.get_glyph_canvas ();
118 canvas.set_current_glyph_collection (glyph_collection);
119
120 set_initial_zoom ();
121 } else {
122 warning ("Glyph is already open");
123 }
124
125 OverviewTools.update_overview_characterset ();
126 return glyph_collection;
127 }
128
129 public GlyphCollection add_empty_character_to_font (unichar character, bool unassigned, string name) {
130 return add_character_to_font (character, true, unassigned);
131 }
132
133 public GlyphCollection add_character_to_font (unichar character, bool empty = false,
134 bool unassigned = false, string glyph_name = "") {
135 StringBuilder name = new StringBuilder ();
136 Font font = BirdFont.get_current_font ();
137 GlyphCollection? fg;
138 Glyph glyph;
139 GlyphCollection glyph_collection;
140
141 if (glyph_name == "") {
142 name.append_unichar (character);
143 } else {
144 name.append (glyph_name);
145 }
146
147 if (all_available) {
148 fg = font.get_glyph_collection_by_name (name.str);
149 } else {
150 fg = font.get_glyph_collection (name.str);
151 }
152
153 if (fg != null) {
154 glyph_collection = (!) fg;
155 } else {
156 glyph_collection = new GlyphCollection (character, name.str);
157
158 if (!empty) {
159 glyph = new Glyph (name.str, (!unassigned) ? character : '\0');
160 glyph_collection.insert_glyph (glyph, true);
161 }
162
163 font.add_glyph_collection (glyph_collection);
164 }
165
166 glyph_collection.set_unassigned (unassigned);
167
168 return glyph_collection;
169 }
170
171 public static void search () {
172 OverView ow = MainWindow.get_overview ();
173 TextListener listener = new TextListener (t_("Search"), ow.search_query, t_("Filter"));
174
175 listener.signal_text_input.connect ((text) => {
176 OverView o = MainWindow.get_overview ();
177 o.search_query = text;
178 });
179
180 listener.signal_submit.connect (() => {
181 OverView o = MainWindow.get_overview ();
182 GlyphRange r = CharDatabase.search (o.search_query);
183 o.set_glyph_range (r);
184 TabContent.hide_text_input ();
185 MainWindow.get_tab_bar ().select_tab_name ("Overview");
186 });
187
188 TabContent.show_text_input (listener);
189 }
190
191 public Glyph? get_current_glyph () {
192 OverViewItem oi = selected_item;
193 if (oi.glyphs != null) {
194 return ((!) oi.glyphs).get_current ();
195 }
196 return null;
197 }
198
199 private void set_initial_zoom () {
200 Toolbox tools = MainWindow.get_toolbox ();
201 ZoomTool z = (ZoomTool) tools.get_tool ("zoom_tool");
202 z.store_current_view ();
203 MainWindow.get_current_glyph ().default_zoom ();
204 z.store_current_view ();
205 }
206
207 public double get_height () {
208 double l;
209 Font f;
210
211 if (rows == 0) {
212 return 0;
213 }
214
215 if (all_available) {
216 f = BirdFont.get_current_font ();
217 l = f.length ();
218 } else {
219 l = glyph_range.length ();
220 }
221
222 return 2.0 * OverViewItem.height * (l / rows);
223 }
224
225 public bool selected_char_is_visible () {
226 return first_visible <= selected <= first_visible + items_per_row * rows;
227 }
228
229 public override bool has_scrollbar () {
230 return true;
231 }
232
233 public override void scroll_wheel_up (double x, double y) {
234 key_up ();
235 update_scrollbar ();
236 GlyphCanvas.redraw ();
237 hide_menu ();
238
239 selected_item = get_selected_item ();
240 selected_items.clear ();
241 if (selected_item.glyphs != null) {
242 selected_items.add ((!) selected_item.glyphs);
243 }
244 }
245
246 public override void scroll_wheel_down (double x, double y) {
247 key_down ();
248 update_scrollbar ();
249 GlyphCanvas.redraw ();
250 hide_menu ();
251
252 selected_item = get_selected_item ();
253 selected_items.clear ();
254 if (selected_item.glyphs != null) {
255 selected_items.add ((!) selected_item.glyphs);
256 }
257 }
258
259 public override void selected_canvas () {
260 OverviewTools.update_overview_characterset ();
261 KeyBindings.set_require_modifier (true);
262 update_scrollbar ();
263 update_zoom_bar ();
264 OverViewItem.glyph_scale = 1;
265 update_item_list ();
266 selected_item = get_selected_item ();
267 GlyphCanvas.redraw ();
268 }
269
270 public void update_zoom_bar () {
271 double z = OverViewItem.width / OverViewItem.DEFAULT_WIDTH - 0.5;
272 Toolbox.overview_tools.zoom_bar.set_zoom (z);
273 Toolbox.redraw_tool_box ();
274 update_item_list ();
275 }
276
277 public void set_zoom (double zoom) {
278 double z = zoom + 0.5;
279 OverViewItem.glyph_scale = 1;
280 OverViewItem.width = OverViewItem.DEFAULT_WIDTH * z;
281 OverViewItem.height = OverViewItem.DEFAULT_HEIGHT * z;
282 OverViewItem.margin = OverViewItem.DEFAULT_MARGIN * z;
283 GlyphCanvas.redraw ();
284 }
285
286 public override void zoom_min () {
287 OverViewItem.width = OverViewItem.DEFAULT_WIDTH * 0.5;
288 OverViewItem.height = OverViewItem.DEFAULT_HEIGHT * 0.5;
289 OverViewItem.margin = OverViewItem.DEFAULT_MARGIN * 0.5;
290 GlyphCanvas.redraw ();
291 update_zoom_bar ();
292 }
293
294 public override void reset_zoom () {
295 OverViewItem.width = OverViewItem.DEFAULT_WIDTH;
296 OverViewItem.height = OverViewItem.DEFAULT_HEIGHT;
297 OverViewItem.margin = OverViewItem.DEFAULT_MARGIN;
298 GlyphCanvas.redraw ();
299 update_zoom_bar ();
300 }
301
302 public override void zoom_max () {
303 OverViewItem.width = allocation.width;
304 OverViewItem.height = allocation.height;
305 GlyphCanvas.redraw ();
306 }
307
308 public override void zoom_in () {
309 OverViewItem.width *= 1.1;
310 OverViewItem.height *= 1.1;
311 OverViewItem.margin *= 1.1;
312 GlyphCanvas.redraw ();
313 update_zoom_bar ();
314 }
315
316 public override void zoom_out () {
317 OverViewItem.width *= 0.9;
318 OverViewItem.height *= 0.9;
319 OverViewItem.margin *= 0.9;
320 GlyphCanvas.redraw ();
321 update_zoom_bar ();
322 }
323
324 public override void store_current_view () {
325 }
326
327 public override void restore_last_view () {
328 }
329
330 public override void next_view () {
331 }
332
333 public override string get_label () {
334 return t_("Overview");
335 }
336
337 public override string get_name () {
338 return "Overview";
339 }
340
341 public void display_all_available_glyphs () {
342 all_available = true;
343
344 first_visible = 0;
345 selected = 0;
346
347 selected_item = get_selected_item ();
348 GlyphCanvas.redraw ();
349 }
350
351 OverViewItem get_selected_item () {
352 if (visible_items.size == 0) {
353 return new OverViewItem (null, '\0', 0, 0);
354 }
355
356 if (unlikely (!(0 <= selected < visible_items.size))) {
357 warning (@"0 <= $selected < $(visible_items.size)");
358 return new OverViewItem (null, '\0', 0, 0);
359 }
360
361 return visible_items.get (selected);
362 }
363
364 int get_items_per_row () {
365 int i = 1;
366 OverViewItem.margin = OverViewItem.width * 0.1;
367 double l = OverViewItem.margin + OverViewItem.full_width ();
368 while (l <= allocation.width) {
369 l += OverViewItem.full_width ();
370 i++;
371 }
372 return i - 1;
373 }
374
375 public void update_item_list (int item_list_length = -1) {
376 string character_string;
377 Font f = BirdFont.get_current_font ();
378 GlyphCollection? glyphs = null;
379 uint32 index;
380 OverViewItem item;
381 double x, y;
382 unichar character;
383 Glyph glyph;
384
385 items_per_row = get_items_per_row ();
386 rows = (int) (allocation.height / OverViewItem.full_height ()) + 2;
387
388 if (item_list_length == -1) {
389 item_list_length = items_per_row * rows;
390 }
391
392 visible_items.clear ();
393 visible_items = new Gee.ArrayList<OverViewItem> ();
394
395 // update item list
396 index = (uint32) first_visible;
397 x = OverViewItem.margin;
398 y = OverViewItem.margin;
399 for (int i = 0; i < item_list_length; i++) {
400 if (all_available) {
401 if (! (0 <= index < f.length ())) {
402 break;
403 }
404
405 glyphs = f.get_glyph_collection_indice ((uint32) index);
406 return_if_fail (glyphs != null);
407
408 glyph = ((!) glyphs).get_current ();
409 character_string = glyph.name;
410 character = glyph.unichar_code;
411 } else {
412 if (!(0 <= index < glyph_range.get_length ())) {
413 break;
414 }
415
416 character_string = glyph_range.get_char ((uint32) index);
417 glyphs = f.get_glyph_collection_by_name (character_string);
418 character = character_string.get_char (0);
419 }
420
421 item = new OverViewItem (glyphs, character, x, y);
422 item.adjust_scale ();
423
424 x += OverViewItem.full_width ();
425
426 if (x + OverViewItem.full_width () >= allocation.width) {
427 x = OverViewItem.margin;
428 y += OverViewItem.full_height ();
429 }
430
431 item.selected = (i == selected);
432
433 if (glyphs != null) {
434 item.selected |= selected_items.index_of ((!) glyphs) != -1;
435 }
436
437 visible_items.add (item);
438 index++;
439 }
440
441 // offset
442 item = get_selected_item ();
443 if (item.y + OverViewItem.height > allocation.height) {
444 view_offset_y = allocation.height - (item.y + OverViewItem.height);
445 }
446
447 if (item.y + view_offset_y < 0) {
448 view_offset_y = 0;
449 }
450
451 foreach (OverViewItem i in visible_items) {
452 i.y += view_offset_y;
453 i.x += view_offset_x;
454 }
455 }
456
457 public override void draw (WidgetAllocation allocation, Context cr) {
458 this.allocation = allocation;
459
460 // clear canvas
461 cr.save ();
462 Theme.color (cr, "Background 1");
463 cr.rectangle (0, 0, allocation.width, allocation.height);
464 cr.fill ();
465 cr.restore ();
466
467 foreach (OverViewItem i in visible_items) {
468 i.draw (allocation, cr);
469 }
470
471 if (visible_items.size == 0) {
472 draw_empty_canvas (allocation, cr);
473 }
474
475 if (character_info != null) {
476 draw_character_info (cr);
477 }
478 }
479
480 void draw_empty_canvas (WidgetAllocation allocation, Context cr) {
481 Text t;
482
483 cr.save ();
484 t = new Text (t_("No glyphs in this view."), 24);
485 Theme.text_color (t, "Text Foreground");
486 t.widget_x = 40;
487 t.widget_y = 30;
488 t.draw (cr);
489 cr.restore ();
490 }
491
492 public void scroll_rows (int row_adjustment) {
493 for (int i = 0; i < row_adjustment; i++) {
494 scroll (-OverViewItem.height);
495 }
496
497 for (int i = 0; i > row_adjustment; i--) {
498 scroll (OverViewItem.height);
499 }
500 }
501
502 public void scroll_adjustment (double pixel_adjustment) {
503 double l;
504 Font f;
505
506 if (all_available) {
507 f = BirdFont.get_current_font ();
508 l = f.length ();
509 } else {
510 l = glyph_range.length ();
511 }
512
513 if (first_visible <= 0) {
514 return;
515 }
516
517 if (first_visible + rows * items_per_row >= l) {
518 return;
519 }
520
521 scroll ((int64) pixel_adjustment);
522 }
523
524 void default_position () {
525 scroll_top ();
526 scroll_rows (1);
527 }
528
529 void scroll_to_position (int64 r) {
530 if (r < 0) {
531 scroll_top ();
532 return;
533 }
534
535 default_position ();
536
537 first_visible = (int) r;
538 }
539
540 public override void scroll_to (double position) requires (items_per_row > 0) {
541 double r;
542 int nrows;
543 Font f;
544
545 if (all_available) {
546 f = BirdFont.get_current_font ();
547 nrows = (int) (f.length () / items_per_row);
548 } else {
549 nrows = (int) (glyph_range.length () / items_per_row);
550 }
551
552 view_offset_y = 0;
553 r = (int64) (position * (nrows - rows + 3)); // 3 invisible rows
554 r *= items_per_row;
555
556 scroll_to_position ((int64) r);
557
558 GlyphCanvas.redraw ();
559 }
560
561 private void scroll (double pixel_adjustment) {
562 if (first_visible < 0 && pixel_adjustment < 0) {
563 scroll_top ();
564 return;
565 }
566
567 view_offset_y += pixel_adjustment;
568
569 if (view_offset_y >= 0) {
570 while (view_offset_y > OverViewItem.height) {
571 view_offset_y -= OverViewItem.height;
572 first_visible -= items_per_row;
573 }
574
575 first_visible -= items_per_row;
576 view_offset_y -= OverViewItem.height;
577 } else if (view_offset_y < -OverViewItem.height) {
578 view_offset_y = 0;
579 first_visible += items_per_row;
580 }
581 }
582
583 public void scroll_top () {
584 selected = 0;
585 first_visible = 0;
586
587 if (visible_items.size != 0) {
588 selected_item = get_selected_item ();
589 }
590 }
591
592 /** Returns true if the selected glyph is at the last row. */
593 private bool last_row () {
594 return visible_items.size - selected <= items_per_row;
595 }
596
597 public void key_down () {
598 Font f = BirdFont.get_current_font ();
599 int64 len = (all_available) ? f.length () : glyph_range.length ();
600
601 if (at_bottom () && last_row ()) {
602 return;
603 }
604
605 selected += items_per_row;
606
607 if (selected >= items_per_row * rows) {
608 first_visible += items_per_row;
609 selected -= items_per_row;
610 }
611
612 if (first_visible + selected >= len) {
613 selected = (int) (len - first_visible - 1);
614
615 if (selected < items_per_row * (rows - 1)) {
616 first_visible -= items_per_row;
617 selected += items_per_row;
618 }
619 }
620
621 if (selected >= visible_items.size) {
622 selected = (int) (visible_items.size - 1);
623 }
624
625 selected_item = get_selected_item ();
626 }
627
628 public void key_right () {
629 Font f = BirdFont.get_current_font ();
630 int64 len = (all_available) ? f.length () : glyph_range.length ();
631
632 if (at_bottom () && first_visible + selected + 1 >= len) {
633 selected = (int) (visible_items.size - 1);
634 selected_item = get_selected_item ();
635 return;
636 }
637
638 selected += 1;
639
640 if (selected >= items_per_row * rows) {
641 first_visible += items_per_row;
642 selected -= items_per_row;
643 selected -= 1;
644 }
645
646 if (first_visible + selected > len) {
647 first_visible -= items_per_row;
648 selected = (int) (len - first_visible - 1);
649 selected_item = get_selected_item ();
650 }
651 }
652
653 public void key_up () {
654 selected -= items_per_row;
655
656 if (selected < 0) {
657 first_visible -= items_per_row;
658 selected += items_per_row;
659 }
660
661 if (first_visible < 0) {
662 first_visible = 0;
663 }
664 }
665
666 public void key_left () {
667 selected -= 1;
668
669 if (selected < 0) {
670 first_visible -= items_per_row;
671 selected += items_per_row;
672 selected += 1;
673 }
674
675 if (first_visible < 0) {
676 scroll_top ();
677 }
678 }
679
680 public string get_selected_char () {
681 Font f;
682 Glyph? g;
683
684 if (all_available) {
685 f = BirdFont.get_current_font ();
686 g = f.get_glyph_indice (selected);
687 return_val_if_fail (g != null, "".dup ());
688 return ((!) g).get_name ();
689 }
690
691 return glyph_range.get_char (selected);
692 }
693
694 public override void key_press (uint keyval) {
695 hide_menu ();
696 GlyphCanvas.redraw ();
697
698 if (KeyBindings.modifier == CTRL) {
699 return;
700 }
701
702 switch (keyval) {
703 case Key.ENTER:
704 open_current_glyph ();
705 return;
706
707 case Key.UP:
708 key_up ();
709 selected_item = get_selected_item ();
710
711 selected_items.clear ();
712 if (selected_item.glyphs != null) {
713 selected_items.add ((!) selected_item.glyphs);
714 }
715 return;
716
717 case Key.RIGHT:
718 key_right ();
719 selected_item = get_selected_item ();
720
721 selected_items.clear ();
722 if (selected_item.glyphs != null) {
723 selected_items.add ((!) selected_item.glyphs);
724 }
725 return;
726
727 case Key.LEFT:
728 key_left ();
729 selected_item = get_selected_item ();
730
731 selected_items.clear ();
732 if (selected_item.glyphs != null) {
733 selected_items.add ((!) selected_item.glyphs);
734 }
735 return;
736
737 case Key.DOWN:
738 key_down ();
739 selected_item = get_selected_item ();
740
741 selected_items.clear ();
742 if (selected_item.glyphs != null) {
743 selected_items.add ((!) selected_item.glyphs);
744 }
745 return;
746
747 case Key.PG_UP:
748 for (int i = 0; i < rows; i++) {
749 key_up ();
750 }
751 selected_item = get_selected_item ();
752
753 selected_items.clear ();
754 if (selected_item.glyphs != null) {
755 selected_items.add ((!) selected_item.glyphs);
756 }
757 return;
758
759 case Key.PG_DOWN:
760 for (int i = 0; i < rows; i++) {
761 key_down ();
762 }
763 selected_item = get_selected_item ();
764
765 selected_items.clear ();
766 if (selected_item.glyphs != null) {
767 selected_items.add ((!) selected_item.glyphs);
768 }
769 return;
770
771 case Key.DEL:
772 delete_selected_glyph ();
773 selected_item = get_selected_item ();
774 return;
775
776 case Key.BACK_SPACE:
777 delete_selected_glyph ();
778 selected_item = get_selected_item ();
779 return;
780 }
781
782 scroll_to_char (keyval);
783 selected_item = get_selected_item ();
784
785 selected_items.clear ();
786 if (selected_item.glyphs != null) {
787 selected_items.add ((!) selected_item.glyphs);
788 }
789 }
790
791 public void delete_selected_glyph () {
792 Font font = BirdFont.get_current_font ();
793 OverViewUndoItem undo_item = new OverViewUndoItem ();
794
795 foreach (GlyphCollection g in selected_items) {
796 undo_item.glyphs.add (g.copy ());
797 }
798 store_undo_items (undo_item);
799
800 foreach (GlyphCollection gc in selected_items) {
801 font.delete_glyph (gc);
802 }
803 }
804
805 public override void undo () {
806 Font font = BirdFont.get_current_font ();
807 OverViewUndoItem previous_collection;
808
809 if (undo_items.size == 0) {
810 return;
811 }
812
813 previous_collection = undo_items.get (undo_items.size - 1);
814 redo_items.add (get_current_state (previous_collection));
815
816 // remove the old glyph and add the new one
817 foreach (GlyphCollection g in previous_collection.glyphs) {
818 font.delete_glyph (g);
819
820 if (g.length () > 0) {
821 font.add_glyph_collection (g);
822 }
823 }
824
825 undo_items.remove_at (undo_items.size - 1);
826 GlyphCanvas.redraw ();
827 }
828
829 public override void redo () {
830 Font font = BirdFont.get_current_font ();
831 OverViewUndoItem previous_collection;
832
833 if (redo_items.size == 0) {
834 return;
835 }
836
837 previous_collection = redo_items.get (redo_items.size - 1);
838 undo_items.add (get_current_state (previous_collection));
839
840 // remove the old glyph and add the new one
841 foreach (GlyphCollection g in previous_collection.glyphs) {
842 font.delete_glyph (g);
843 font.add_glyph_collection (g);
844 }
845
846 redo_items.remove_at (redo_items.size - 1);
847 GlyphCanvas.redraw ();
848 }
849
850 public OverViewUndoItem get_current_state (OverViewUndoItem previous_collection) {
851 GlyphCollection? gc;
852 OverViewUndoItem ui = new OverViewUndoItem ();
853 Font font = BirdFont.get_current_font ();
854
855 foreach (GlyphCollection g in previous_collection.glyphs) {
856 gc = font.get_glyph_collection (g.get_name ());
857
858 if (gc != null) {
859 ui.glyphs.add (((!) gc).copy ());
860 } else {
861 ui.glyphs.add (new GlyphCollection (g.get_unicode_character (), g.get_name ()));
862 }
863 }
864
865 return ui;
866 }
867
868 public void store_undo_state (GlyphCollection gc) {
869 OverViewUndoItem i = new OverViewUndoItem ();
870 i.glyphs.add (gc);
871 store_undo_items (i);
872 }
873
874 public void store_undo_items (OverViewUndoItem i) {
875 undo_items.add (i);
876 redo_items.clear ();
877 }
878
879 bool select_visible_glyph (string name) {
880 int i = 0;
881
882 foreach (OverViewItem o in visible_items) {
883 if (o.get_name () == name) {
884 selected = i;
885 selected_item = get_selected_item ();
886 return true;
887 }
888
889 if (i > 1000) {
890 warning ("selected character not found");
891 return true;
892 }
893
894 i++;
895 }
896
897 return false;
898 }
899
900 public void scroll_to_char (unichar c) {
901 StringBuilder s = new StringBuilder ();
902
903 if (is_modifier_key (c)) {
904 return;
905 }
906
907 s.append_unichar (c);
908 scroll_to_glyph (s.str);
909 }
910
911 public void scroll_to_glyph (string name) {
912 GlyphRange gr = glyph_range;
913 int i, r, index;
914 string ch;
915 Font font = BirdFont.get_current_font ();
916 GlyphCollection? glyphs = null;
917 Glyph glyph;
918
919 index = -1;
920
921 if (items_per_row <= 0) {
922 return;
923 }
924
925 ch = name;
926
927 // selected char is visible
928 if (select_visible_glyph (ch)) {
929 return;
930 }
931
932 // scroll to char
933 if (all_available) {
934
935 // don't search for glyphs in huge CJK fonts
936 if (font.length () > 300) {
937 r = 0;
938 } else {
939 // FIXME: too slow
940 for (r = 0; r < font.length (); r += items_per_row) {
941 for (i = 0; i < items_per_row; i++) {
942 glyphs = font.get_glyph_collection_indice ((uint32) r + i);
943 return_if_fail (glyphs != null);
944 glyph = ((!) glyphs).get_current ();
945
946 if (glyph.name == ch) {
947 index = i;
948 }
949 }
950
951 if (index > -1) {
952 break;
953 }
954 }
955 }
956 } else {
957
958 if (ch.char_count () > 1) {
959 warning ("Can't scroll to ligature in this view");
960 return;
961 }
962
963 for (r = 0; r < gr.length (); r += items_per_row) {
964 for (i = 0; i < items_per_row; i++) {
965 if (gr.get_char (r + i) == ch) {
966 index = i;
967 }
968 }
969
970 if (index > -1) {
971 break;
972 }
973 }
974 }
975
976 if (index > -1) {
977 first_visible = r;
978 update_item_list ();
979 select_visible_glyph (ch);
980 }
981 }
982
983 public override void double_click (uint button, double ex, double ey)
984 requires (!is_null (visible_items) && !is_null (allocation)) {
985
986 return_if_fail (!is_null (this));
987
988 foreach (OverViewItem i in visible_items) {
989 if (i.double_click (button, ex, ey)) {
990 open_overview_item (i);
991 }
992 }
993
994 GlyphCanvas.redraw ();
995 }
996
997 public void open_overview_item (OverViewItem i) {
998 if (i.glyphs != null) {
999 open_glyph_signal ((!) i.glyphs);
1000 ((!) i.glyphs).get_current ().close_path ();
1001 } else {
1002 open_new_glyph_signal (i.character);
1003 }
1004 }
1005
1006 public void set_character_info (CharacterInfo i) {
1007 character_info = i;
1008 }
1009
1010 public int get_selected_index () {
1011 GlyphCollection gc;
1012 int index = 0;
1013
1014 if (selected_items.size == 0) {
1015 return 0;
1016 }
1017
1018 gc = selected_items.get (0);
1019
1020 foreach (OverViewItem i in visible_items) {
1021
1022 if (i.glyphs != null && gc == ((!) i.glyphs)) {
1023 break;
1024 }
1025
1026 index++;
1027 }
1028
1029 return index;
1030 }
1031
1032 public void hide_menu () {
1033 foreach (OverViewItem i in visible_items) {
1034 i.hide_menu ();
1035 }
1036 }
1037
1038 public override void button_press (uint button, double x, double y) {
1039 int index = 0;
1040 int selected_index = -1;
1041
1042 if (character_info != null) {
1043 character_info = null;
1044 GlyphCanvas.redraw ();
1045 return;
1046 }
1047
1048 foreach (OverViewItem i in visible_items) {
1049 if (i.click (button, x, y)) {
1050 selected = index;
1051 selected_item = get_selected_item ();
1052
1053 if (KeyBindings.has_shift ()) {
1054 if (selected_item.glyphs != null) {
1055
1056 selected_index = selected_items.index_of ((!) selected_item.glyphs);
1057 if (selected_index == -1) {
1058 selected_items.add ((!) selected_item.glyphs);
1059 } else {
1060 return_if_fail (0 <= selected_index < selected_items.size);
1061 selected_items.remove_at (selected_index);
1062 selected = get_selected_index ();
1063 selected_item = get_selected_item ();
1064 }
1065 }
1066 } else {
1067 selected_items.clear ();
1068 if (selected_item.glyphs != null) {
1069 selected_items.add ((!) selected_item.glyphs);
1070 }
1071 }
1072 }
1073 index++;
1074 }
1075
1076 // FIXME: update_item_list ();
1077 GlyphCanvas.redraw ();
1078 }
1079
1080 /** Returns true if overview shows the last character. */
1081 private bool at_bottom () {
1082 Font f;
1083 double t = rows * items_per_row + first_visible;
1084
1085 if (all_available) {
1086 f = BirdFont.get_current_font ();
1087 return t >= f.length ();
1088 }
1089
1090 return t >= glyph_range.length ();
1091 }
1092
1093 public void set_glyph_range (GlyphRange range) {
1094 GlyphRange? current = glyph_range;
1095 string c;
1096
1097 if (current != null) {
1098 c = glyph_range.get_char (selected);
1099 }
1100
1101 all_available = false;
1102
1103 glyph_range = range;
1104 scroll_top ();
1105
1106 // TODO: scroll down to c
1107 update_item_list ();
1108 selected_item = get_selected_item ();
1109
1110 GlyphCanvas.redraw ();
1111 }
1112
1113 public void select_next_glyph () {
1114 key_right ();
1115 }
1116
1117 public void open_current_glyph () {
1118 open_overview_item (selected_item);
1119 }
1120
1121 public override void update_scrollbar () {
1122 Font f;
1123 double nrows = 0;
1124 double pos = 0;
1125 double size;
1126 double visible_rows;
1127
1128 if (rows == 0) {
1129 MainWindow.set_scrollbar_size (0);
1130 MainWindow.set_scrollbar_position (0);
1131 } else {
1132 if (all_available) {
1133 f = BirdFont.get_current_font ();
1134 nrows = Math.floor ((f.length ()) / rows);
1135 size = f.length ();
1136 } else {
1137 nrows = Math.floor ((glyph_range.length ()) / rows);
1138 size = glyph_range.length ();
1139 }
1140
1141 if (nrows <= 0) {
1142 nrows = 1;
1143 }
1144
1145 // FIXME: this is not correct
1146 visible_rows = allocation.height / OverViewItem.height;
1147 scroll_size = visible_rows / nrows;
1148 MainWindow.set_scrollbar_size (scroll_size);
1149 pos = first_visible / (nrows * items_per_row - visible_rows * items_per_row);
1150 MainWindow.set_scrollbar_position (pos);
1151 }
1152 }
1153
1154 /** Display one entry from the Unicode Character Database. */
1155 void draw_character_info (Context cr)
1156 requires (character_info != null) {
1157 double x, y, w, h;
1158 int i;
1159 string unicode_value, unicode_description;
1160 string[] column;
1161 string entry;
1162 int len = 0;
1163 int length = 0;
1164 bool see_also = false;
1165 WidgetAllocation allocation = MainWindow.get_overview ().allocation;
1166 string name;
1167
1168 entry = ((!)character_info).get_entry ();
1169
1170 foreach (string line in entry.split ("\n")) {
1171 len = line.char_count ();
1172 if (len > length) {
1173 length = len;
1174 }
1175 }
1176
1177 x = allocation.width * 0.1;
1178 y = allocation.height * 0.1;
1179 w = allocation.width * 0.9 - x;
1180 h = allocation.height * 0.9 - y;
1181
1182 if (w < 8 * length) {
1183 w = 8 * length;
1184 x = (allocation.width - w) / 2.0;
1185 }
1186
1187 if (x < 0) {
1188 x = 2;
1189 }
1190
1191 // background
1192 cr.save ();
1193 Theme.color_opacity (cr, "Background 1", 0.98);
1194 cr.rectangle (x, y, w, h);
1195 cr.fill ();
1196 cr.restore ();
1197
1198 cr.save ();
1199 Theme.color_opacity (cr, "Foreground 1", 0.98);
1200 cr.set_line_width (2);
1201 cr.rectangle (x, y, w, h);
1202 cr.stroke ();
1203 cr.restore ();
1204
1205 // database entry
1206
1207 if (((!)character_info).is_ligature ()) {
1208 name = ((!)character_info).get_name ();
1209 draw_info_line (t_("Ligature") + ": " + name, cr, x, y, 0);
1210 } else {
1211 i = 0;
1212 foreach (string line in entry.split ("\n")) {
1213 if (i == 0) {
1214 column = line.split ("\t");
1215 return_if_fail (column.length == 2);
1216 unicode_value = "U+" + column[0];
1217 unicode_description = column[1];
1218
1219 draw_info_line (unicode_description, cr, x, y, i);
1220 i++;
1221
1222 draw_info_line (unicode_value, cr, x, y, i);
1223 i++;
1224 } else {
1225
1226 if (line.has_prefix ("\t*")) {
1227 draw_info_line (line.replace ("\t*", "•"), cr, x, y, i);
1228 i++;
1229 } else if (line.has_prefix ("\tx (")) {
1230 if (!see_also) {
1231 i++;
1232 draw_info_line (t_("See also:"), cr, x, y, i);
1233 i++;
1234 see_also = true;
1235 }
1236
1237 draw_info_line (line.replace ("\tx (", "•").replace (")", ""), cr, x, y, i);
1238 i++;
1239 } else {
1240
1241 i++;
1242 }
1243 }
1244 }
1245 }
1246 }
1247
1248 void draw_info_line (string line, Context cr, double x, double y, int row) {
1249 cr.save ();
1250 cr.set_font_size (12);
1251 Theme.color (cr, "Foreground 1");
1252 cr.move_to (x + 10, y + 28 + row * 18 * 1.2);
1253 cr.show_text (line);
1254 cr.restore ();
1255 }
1256
1257 public void paste () {
1258 GlyphCollection gc = new GlyphCollection ('\0', "");
1259 GlyphCollection? c;
1260 Glyph glyph;
1261 uint32 index;
1262 int i;
1263 int skip = 0;
1264 int s;
1265 string character_string;
1266 Gee.ArrayList<GlyphCollection> glyps = new Gee.ArrayList<GlyphCollection> ();
1267 Font f = BirdFont.get_current_font ();
1268 OverViewUndoItem undo_item;
1269
1270 copied_glyphs.sort ((a, b) => {
1271 return (int) ((GlyphCollection) a).get_unicode_character ()
1272 - (int) ((GlyphCollection) b).get_unicode_character ();
1273 });
1274
1275 index = (uint32) first_visible + selected;
1276 for (i = 0; i < copied_glyphs.size; i++) {
1277 if (all_available) {
1278 if (f.length () == 0) {
1279 c = add_empty_character_to_font (copied_glyphs.get (i).get_unicode_character (),
1280 copied_glyphs.get (i).is_unassigned (),
1281 copied_glyphs.get (i).get_name ());
1282 } else if (index >= f.length ()) {
1283 // FIXME: duplicated unicodes?
1284 c = add_empty_character_to_font (copied_glyphs.get (i).get_unicode_character (),
1285 copied_glyphs.get (i).is_unassigned (),
1286 copied_glyphs.get (i).get_name ());
1287 } else {
1288 c = f.get_glyph_collection_indice ((uint32) index);
1289 }
1290
1291 if (c == null) {
1292 c = add_empty_character_to_font (copied_glyphs.get (i).get_unicode_character (),
1293 copied_glyphs.get (i).is_unassigned (),
1294 copied_glyphs.get (i).get_name ());
1295 }
1296
1297 return_if_fail (c != null);
1298 gc = (!) c;
1299 } else {
1300 if (i != 0) {
1301 s = (int) copied_glyphs.get (i).get_unicode_character ();
1302 s -= (int) copied_glyphs.get (i - 1).get_unicode_character ();
1303 s -= 1;
1304 skip += s;
1305 }
1306
1307 character_string = glyph_range.get_char ((uint32) (index + skip));
1308 c = f.get_glyph_collection_by_name (character_string);
1309
1310 if (c == null) {
1311 gc = add_empty_character_to_font (character_string.get_char (),
1312 copied_glyphs.get (i).is_unassigned (),
1313 copied_glyphs.get (i).get_name ());
1314 } else {
1315 gc = (!) c;
1316 }
1317 }
1318
1319 glyps.add (gc);
1320 index++;
1321 }
1322
1323 undo_item = new OverViewUndoItem ();
1324 foreach (GlyphCollection g in glyps) {
1325 undo_item.glyphs.add (g.copy ());
1326 }
1327 store_undo_items (undo_item);
1328
1329 if (glyps.size != copied_glyphs.size) {
1330 warning ("glyps.size != copied_glyphs.size");
1331 return;
1332 }
1333
1334 i = 0;
1335 foreach (GlyphCollection g in glyps) {
1336 glyph = copied_glyphs.get (i).get_current ().copy ();
1337 glyph.version_id = (glyph.version_id == -1 || g.length () == 0) ? 1 : g.get_last_id () + 1;
1338 glyph.unichar_code = g.get_unicode_character ();
1339
1340 if (!g.is_unassigned ()) {
1341 glyph.name = (!) glyph.unichar_code.to_string ();
1342 } else {
1343 glyph.name = g.get_name ();
1344 }
1345
1346 g.insert_glyph (glyph, true);
1347 i++;
1348 }
1349
1350 f.touch ();
1351 }
1352
1353 public class OverViewUndoItem {
1354 public Gee.ArrayList<GlyphCollection> glyphs = new Gee.ArrayList<GlyphCollection> ();
1355 }
1356 }
1357
1358 }
1359