2 * Copyright (C) 2012 Koji Ishii <kojiishi@gmail.com>
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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8 * notice, this list of conditions and the following disclaimer.
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11 * documentation and/or other materials provided with the distribution.
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15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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25 #ifndef OpenTypeVerticalData_h
26 #define OpenTypeVerticalData_h
28 #if ENABLE(OPENTYPE_VERTICAL)
30 #include "platform/PlatformExport.h"
31 #include "platform/fonts/Glyph.h"
32 #include "wtf/HashMap.h"
33 #include "wtf/PassRefPtr.h"
34 #include "wtf/RefCounted.h"
35 #include "wtf/Vector.h"
39 class FontPlatformData;
43 class PLATFORM_EXPORT OpenTypeVerticalData : public RefCounted<OpenTypeVerticalData> {
45 static PassRefPtr<OpenTypeVerticalData> create(const FontPlatformData& platformData)
47 return adoptRef(new OpenTypeVerticalData(platformData));
50 bool isOpenType() const { return !m_advanceWidths.isEmpty(); }
51 bool hasVerticalMetrics() const { return !m_advanceHeights.isEmpty(); }
52 float advanceHeight(const SimpleFontData*, Glyph) const;
53 void getVerticalTranslationsForGlyphs(const SimpleFontData*, const Glyph*, size_t, float* outXYArray) const;
54 void substituteWithVerticalGlyphs(const SimpleFontData*, GlyphPage*, unsigned offset, unsigned length) const;
56 bool inFontCache() const { return m_inFontCache; }
57 void setInFontCache(bool inFontCache) { m_inFontCache = inFontCache; }
60 explicit OpenTypeVerticalData(const FontPlatformData&);
62 void loadMetrics(const FontPlatformData&);
63 void loadVerticalGlyphSubstitutions(const FontPlatformData&);
64 bool hasVORG() const { return !m_vertOriginY.isEmpty(); }
66 HashMap<Glyph, Glyph> m_verticalGlyphMap;
67 Vector<uint16_t> m_advanceWidths;
68 Vector<uint16_t> m_advanceHeights;
69 Vector<int16_t> m_topSideBearings;
70 int16_t m_defaultVertOriginY;
71 HashMap<Glyph, int16_t> m_vertOriginY;
73 bool m_inFontCache; // for mark & sweep in FontCache::purgeInactiveFontData()
78 #endif // ENABLE(OPENTYPE_VERTICAL)
80 #endif // OpenTypeVerticalData_h