/* GRAPHITE2 LICENSING Copyright 2010, SIL International All rights reserved. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should also have received a copy of the GNU Lesser General Public License along with this library in the file named "LICENSE". If not, write to the Free Software Foundation, 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA or visit their web page on the internet at http://www.fsf.org/licenses/lgpl.html. Alternatively, the contents of this file may be used under the terms of the Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public License, as published by the Free Software Foundation, either version 2 of the License or (at your option) any later version. */ #pragma once #include "graphite2/Font.h" #include "inc/Main.h" namespace graphite2 { class Face; class FeatureVal; class GlyphFace; class Segment; class GlyphCache { class Loader; GlyphCache(const GlyphCache&); GlyphCache& operator=(const GlyphCache&); public: GlyphCache(const Face & face, const uint32 face_options); ~GlyphCache(); unsigned short numGlyphs() const throw(); unsigned short numAttrs() const throw(); unsigned short unitsPerEm() const throw(); const GlyphFace *glyph(unsigned short glyphid) const; //result may be changed by subsequent call with a different glyphid const GlyphFace *glyphSafe(unsigned short glyphid) const; CLASS_NEW_DELETE; private: const Loader * _glyph_loader; const GlyphFace * * _glyphs; unsigned short _num_glyphs, _num_attrs, _upem; }; inline unsigned short GlyphCache::numGlyphs() const throw() { return _num_glyphs; } inline unsigned short GlyphCache::numAttrs() const throw() { return _num_attrs; } inline unsigned short GlyphCache::unitsPerEm() const throw() { return _upem; } inline const GlyphFace *GlyphCache::glyphSafe(unsigned short glyphid) const { return glyphid < _num_glyphs ? glyph(glyphid) : NULL; } } // namespace graphite2