1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/graphite2/src/inc/GlyphCache.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,92 @@
1.4 +/* GRAPHITE2 LICENSING
1.5 +
1.6 + Copyright 2012, SIL International
1.7 + All rights reserved.
1.8 +
1.9 + This library is free software; you can redistribute it and/or modify
1.10 + it under the terms of the GNU Lesser General Public License as published
1.11 + by the Free Software Foundation; either version 2.1 of License, or
1.12 + (at your option) any later version.
1.13 +
1.14 + This program is distributed in the hope that it will be useful,
1.15 + but WITHOUT ANY WARRANTY; without even the implied warranty of
1.16 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1.17 + Lesser General Public License for more details.
1.18 +
1.19 + You should also have received a copy of the GNU Lesser General Public
1.20 + License along with this library in the file named "LICENSE".
1.21 + If not, write to the Free Software Foundation, 51 Franklin Street,
1.22 + Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
1.23 + internet at http://www.fsf.org/licenses/lgpl.html.
1.24 +
1.25 +Alternatively, the contents of this file may be used under the terms of the
1.26 +Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
1.27 +License, as published by the Free Software Foundation, either version 2
1.28 +of the License or (at your option) any later version.
1.29 +*/
1.30 +#pragma once
1.31 +
1.32 +
1.33 +#include "graphite2/Font.h"
1.34 +#include "inc/Main.h"
1.35 +
1.36 +namespace graphite2 {
1.37 +
1.38 +class Face;
1.39 +class FeatureVal;
1.40 +class GlyphFace;
1.41 +class Segment;
1.42 +
1.43 +class GlyphCache
1.44 +{
1.45 + class Loader;
1.46 +
1.47 + GlyphCache(const GlyphCache&);
1.48 + GlyphCache& operator=(const GlyphCache&);
1.49 +
1.50 +public:
1.51 + GlyphCache(const Face & face, const uint32 face_options);
1.52 + ~GlyphCache();
1.53 +
1.54 + unsigned short numGlyphs() const throw();
1.55 + unsigned short numAttrs() const throw();
1.56 + unsigned short unitsPerEm() const throw();
1.57 +
1.58 + const GlyphFace *glyph(unsigned short glyphid) const; //result may be changed by subsequent call with a different glyphid
1.59 + const GlyphFace *glyphSafe(unsigned short glyphid) const;
1.60 +
1.61 + CLASS_NEW_DELETE;
1.62 +
1.63 +private:
1.64 + const Loader * _glyph_loader;
1.65 + const GlyphFace * * _glyphs;
1.66 + unsigned short _num_glyphs,
1.67 + _num_attrs,
1.68 + _upem;
1.69 +};
1.70 +
1.71 +inline
1.72 +unsigned short GlyphCache::numGlyphs() const throw()
1.73 +{
1.74 + return _num_glyphs;
1.75 +}
1.76 +
1.77 +inline
1.78 +unsigned short GlyphCache::numAttrs() const throw()
1.79 +{
1.80 + return _num_attrs;
1.81 +}
1.82 +
1.83 +inline
1.84 +unsigned short GlyphCache::unitsPerEm() const throw()
1.85 +{
1.86 + return _upem;
1.87 +}
1.88 +
1.89 +inline
1.90 +const GlyphFace *GlyphCache::glyphSafe(unsigned short glyphid) const
1.91 +{
1.92 + return glyphid < _num_glyphs ? glyph(glyphid) : NULL;
1.93 +}
1.94 +
1.95 +} // namespace graphite2
