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ContextualLigatureCollection.vala in libbirdfont/OpenFontFormat

This file is a part of the Birdfont project.

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View the latest version of libbirdfont/OpenFontFormat/ContextualLigatureCollection.vala.
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1 /* 2 Copyright (C) 2015 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 using Math; 15 16 namespace BirdFont { 17 18 public class ContextualLigatureCollection : GLib.Object { 19 20 public Gee.ArrayList<ContextualLigature> ligature_context; 21 public Gee.ArrayList<LigatureCollection> ligatures; 22 23 public ContextualLigatureCollection (GlyfTable glyf_table) { 24 ligature_context = new Gee.ArrayList<ContextualLigature> (); 25 ligatures = new Gee.ArrayList<LigatureCollection> (); 26 add_contextual_ligatures (glyf_table); 27 } 28 29 public int16 get_size () { 30 if (ligatures.size != ligature_context.size) { 31 warning ("Expecting one substitution table per contextual ligature"); 32 } 33 34 return (int16) ligature_context.size; 35 } 36 37 public bool has_ligatures () { 38 return ligature_context.size > 0; 39 } 40 41 void add_contextual_ligatures (GlyfTable glyf_table) { 42 Font font = BirdFont.get_current_font (); 43 44 foreach (ContextualLigature c in font.ligature_substitution.contextual_ligatures) { 45 ligature_context.add (c); 46 ligatures.add (new LigatureCollection.contextual (glyf_table, c)); 47 } 48 } 49 } 50 51 } 52