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31 #ifndef FontPlatformDataHarfBuzz_h
32 #define FontPlatformDataHarfBuzz_h
35 #include "platform/SharedBuffer.h"
36 #include "platform/fonts/FontDescription.h"
37 #include "platform/fonts/FontOrientation.h"
38 #include "platform/fonts/FontRenderStyle.h"
39 #include "platform/fonts/opentype/OpenTypeVerticalData.h"
40 #include "wtf/Forward.h"
41 #include "wtf/HashTableDeletedValueType.h"
42 #include "wtf/RefPtr.h"
43 #include "wtf/text/CString.h"
44 #include "wtf/text/StringImpl.h"
47 typedef uint32_t SkFontID;
51 class GraphicsContext;
54 class PLATFORM_EXPORT FontPlatformData {
56 // Used for deleted values in the font cache's hash tables. The hash table
57 // will create us with this structure, and it will compare other values
58 // to this "Deleted" one. It expects the Deleted one to be differentiable
59 // from the 0 one (created with the empty constructor), so we can't just
60 // set everything to 0.
61 FontPlatformData(WTF::HashTableDeletedValueType);
63 FontPlatformData(float textSize, bool syntheticBold, bool syntheticItalic);
64 FontPlatformData(const FontPlatformData&);
65 FontPlatformData(PassRefPtr<SkTypeface>, const char* name, float textSize, bool syntheticBold, bool syntheticItalic, FontOrientation = Horizontal, bool subpixelTextPosition = defaultUseSubpixelPositioning());
66 FontPlatformData(const FontPlatformData& src, float textSize);
69 String fontFamilyName() const;
70 float size() const { return m_textSize; }
71 bool isFixedPitch() const;
73 SkTypeface* typeface() const { return m_typeface.get(); }
74 HarfBuzzFace* harfBuzzFace() const;
75 SkFontID uniqueID() const;
76 unsigned hash() const;
78 FontOrientation orientation() const { return m_orientation; }
79 void setOrientation(FontOrientation orientation) { m_orientation = orientation; }
80 void setSyntheticBold(bool syntheticBold) { m_syntheticBold = syntheticBold; }
81 void setSyntheticItalic(bool syntheticItalic) { m_syntheticItalic = syntheticItalic; }
82 bool operator==(const FontPlatformData&) const;
83 FontPlatformData& operator=(const FontPlatformData&);
84 bool isHashTableDeletedValue() const { return m_isHashTableDeletedValue; }
86 void setMinSizeForAntiAlias(unsigned size) { m_minSizeForAntiAlias = size; }
87 unsigned minSizeForAntiAlias() const { return m_minSizeForAntiAlias; }
88 void setHinting(SkPaint::Hinting style)
90 m_style.useAutoHint = 0;
91 m_style.hintStyle = style;
95 #if ENABLE(OPENTYPE_VERTICAL)
96 PassRefPtr<OpenTypeVerticalData> verticalData() const;
97 PassRefPtr<SharedBuffer> openTypeTable(uint32_t table) const;
101 String description() const;
104 // The returned styles are all actual styles without FontRenderStyle::NoPreference.
105 const FontRenderStyle& fontRenderStyle() const { return m_style; }
106 void setupPaint(SkPaint*, GraphicsContext* = 0) const;
109 int paintTextFlags() const { return m_paintTextFlags; }
111 static void setHinting(SkPaint::Hinting);
112 static void setAutoHint(bool);
113 static void setUseBitmaps(bool);
114 static void setAntiAlias(bool);
115 static void setSubpixelRendering(bool);
119 bool static defaultUseSubpixelPositioning();
120 void querySystemForRenderStyle(bool useSkiaSubpixelPositioning);
122 RefPtr<SkTypeface> m_typeface;
127 bool m_syntheticBold;
128 bool m_syntheticItalic;
129 FontOrientation m_orientation;
130 FontRenderStyle m_style;
131 mutable RefPtr<HarfBuzzFace> m_harfBuzzFace;
132 bool m_isHashTableDeletedValue;
134 int m_paintTextFlags;
135 bool m_useSubpixelPositioning;
136 unsigned m_minSizeForAntiAlias;
140 } // namespace WebCore
142 #endif // ifdef FontPlatformDataHarfBuzz_h