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comparison: gfx/graphite2/src/inc/GlyphCache.h
gfx/graphite2/src/inc/GlyphCache.h
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| 1 /* GRAPHITE2 LICENSING | |
| 2 | |
| 3 Copyright 2012, SIL International | |
| 4 All rights reserved. | |
| 5 | |
| 6 This library is free software; you can redistribute it and/or modify | |
| 7 it under the terms of the GNU Lesser General Public License as published | |
| 8 by the Free Software Foundation; either version 2.1 of License, or | |
| 9 (at your option) any later version. | |
| 10 | |
| 11 This program is distributed in the hope that it will be useful, | |
| 12 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 Lesser General Public License for more details. | |
| 15 | |
| 16 You should also have received a copy of the GNU Lesser General Public | |
| 17 License along with this library in the file named "LICENSE". | |
| 18 If not, write to the Free Software Foundation, 51 Franklin Street, | |
| 19 Suite 500, Boston, MA 02110-1335, USA or visit their web page on the | |
| 20 internet at http://www.fsf.org/licenses/lgpl.html. | |
| 21 | |
| 22 Alternatively, the contents of this file may be used under the terms of the | |
| 23 Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public | |
| 24 License, as published by the Free Software Foundation, either version 2 | |
| 25 of the License or (at your option) any later version. | |
| 26 */ | |
| 27 #pragma once | |
| 28 | |
| 29 | |
| 30 #include "graphite2/Font.h" | |
| 31 #include "inc/Main.h" | |
| 32 | |
| 33 namespace graphite2 { | |
| 34 | |
| 35 class Face; | |
| 36 class FeatureVal; | |
| 37 class GlyphFace; | |
| 38 class Segment; | |
| 39 | |
| 40 class GlyphCache | |
| 41 { | |
| 42 class Loader; | |
| 43 | |
| 44 GlyphCache(const GlyphCache&); | |
| 45 GlyphCache& operator=(const GlyphCache&); | |
| 46 | |
| 47 public: | |
| 48 GlyphCache(const Face & face, const uint32 face_options); | |
| 49 ~GlyphCache(); | |
| 50 | |
| 51 unsigned short numGlyphs() const throw(); | |
| 52 unsigned short numAttrs() const throw(); | |
| 53 unsigned short unitsPerEm() const throw(); | |
| 54 | |
| 55 const GlyphFace *glyph(unsigned short glyphid) const; //result may be changed by subsequent call with a different glyphid | |
| 56 const GlyphFace *glyphSafe(unsigned short glyphid) const; | |
| 57 | |
| 58 CLASS_NEW_DELETE; | |
| 59 | |
| 60 private: | |
| 61 const Loader * _glyph_loader; | |
| 62 const GlyphFace * * _glyphs; | |
| 63 unsigned short _num_glyphs, | |
| 64 _num_attrs, | |
| 65 _upem; | |
| 66 }; | |
| 67 | |
| 68 inline | |
| 69 unsigned short GlyphCache::numGlyphs() const throw() | |
| 70 { | |
| 71 return _num_glyphs; | |
| 72 } | |
| 73 | |
| 74 inline | |
| 75 unsigned short GlyphCache::numAttrs() const throw() | |
| 76 { | |
| 77 return _num_attrs; | |
| 78 } | |
| 79 | |
| 80 inline | |
| 81 unsigned short GlyphCache::unitsPerEm() const throw() | |
| 82 { | |
| 83 return _upem; | |
| 84 } | |
| 85 | |
| 86 inline | |
| 87 const GlyphFace *GlyphCache::glyphSafe(unsigned short glyphid) const | |
| 88 { | |
| 89 return glyphid < _num_glyphs ? glyph(glyphid) : NULL; | |
| 90 } | |
| 91 | |
| 92 } // namespace graphite2 |
