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OverView.vala in libbirdfont

This file is a part of the Birdfont project.

Contributing

Send patches or pull requests to johan.mattsson.m@gmail.com.
Clone this repository: git clone https://github.com/johanmattssonm/birdfont.git

Revisions

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