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1 /* | 1 /* |
2 * Copyright (c) 2006, 2007, 2008, Google Inc. All rights reserved. | 2 * Copyright (c) 2006, 2007, 2008, Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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44 #include "wtf/text/StringImpl.h" | 44 #include "wtf/text/StringImpl.h" |
45 | 45 |
46 class SkTypeface; | 46 class SkTypeface; |
47 typedef uint32_t SkFontID; | 47 typedef uint32_t SkFontID; |
48 | 48 |
49 namespace WebCore { | 49 namespace WebCore { |
50 | 50 |
51 class GraphicsContext; | 51 class GraphicsContext; |
52 class HarfBuzzFace; | 52 class HarfBuzzFace; |
53 | 53 |
54 // ----------------------------------------------------------------------------- | |
55 // FontPlatformData is the handle which WebKit has on a specific face. A face | |
56 // is the tuple of (font, size, ...etc). Here we are just wrapping a Skia | |
57 // SkTypeface pointer and dealing with the reference counting etc. | |
58 // ----------------------------------------------------------------------------- | |
59 class PLATFORM_EXPORT FontPlatformData { | 54 class PLATFORM_EXPORT FontPlatformData { |
60 public: | 55 public: |
61 // Used for deleted values in the font cache's hash tables. The hash table | 56 // Used for deleted values in the font cache's hash tables. The hash table |
62 // will create us with this structure, and it will compare other values | 57 // will create us with this structure, and it will compare other values |
63 // to this "Deleted" one. It expects the Deleted one to be differentiable | 58 // to this "Deleted" one. It expects the Deleted one to be differentiable |
64 // from the 0 one (created with the empty constructor), so we can't just | 59 // from the 0 one (created with the empty constructor), so we can't just |
65 // set everything to 0. | 60 // set everything to 0. |
66 FontPlatformData(WTF::HashTableDeletedValueType); | 61 FontPlatformData(WTF::HashTableDeletedValueType); |
67 FontPlatformData(); | 62 FontPlatformData(); |
68 FontPlatformData(float textSize, bool syntheticBold, bool syntheticItalic); | 63 FontPlatformData(float textSize, bool syntheticBold, bool syntheticItalic); |
69 FontPlatformData(const FontPlatformData&); | 64 FontPlatformData(const FontPlatformData&); |
70 FontPlatformData(PassRefPtr<SkTypeface>, const char* name, float textSize, b
ool syntheticBold, bool syntheticItalic, FontOrientation = Horizontal, bool subp
ixelTextPosition = FontDescription::subpixelPositioning()); | 65 FontPlatformData(PassRefPtr<SkTypeface>, const char* name, float textSize, b
ool syntheticBold, bool syntheticItalic, FontOrientation = Horizontal, bool subp
ixelTextPosition = defaultUseSubpixelPositioning()); |
71 FontPlatformData(const FontPlatformData& src, float textSize); | 66 FontPlatformData(const FontPlatformData& src, float textSize); |
72 ~FontPlatformData(); | 67 ~FontPlatformData(); |
73 | 68 |
74 String fontFamilyName() const; | 69 String fontFamilyName() const; |
75 | 70 float size() const { return m_textSize; } |
76 // ------------------------------------------------------------------------- | |
77 // Return true iff this font is monospaced (i.e. every glyph has an equal x | |
78 // advance) | |
79 // ------------------------------------------------------------------------- | |
80 bool isFixedPitch() const; | 71 bool isFixedPitch() const; |
81 | 72 |
82 // ------------------------------------------------------------------------- | 73 SkTypeface* typeface() const { return m_typeface.get(); } |
83 // Setup a Skia painting context to use this font. | 74 HarfBuzzFace* harfBuzzFace() const; |
84 // ------------------------------------------------------------------------- | |
85 void setupPaint(SkPaint*, GraphicsContext* = 0) const; | |
86 | |
87 // ------------------------------------------------------------------------- | |
88 // Return Skia's unique id for this font. This encodes both the style and | |
89 // the font's file name so refers to a single face. | |
90 // ------------------------------------------------------------------------- | |
91 SkFontID uniqueID() const; | 75 SkFontID uniqueID() const; |
92 SkTypeface* typeface() const { return m_typeface.get(); } | |
93 | |
94 unsigned hash() const; | 76 unsigned hash() const; |
95 float size() const { return m_textSize; } | |
96 | 77 |
97 FontOrientation orientation() const { return m_orientation; } | 78 FontOrientation orientation() const { return m_orientation; } |
98 void setOrientation(FontOrientation orientation) { m_orientation = orientati
on; } | 79 void setOrientation(FontOrientation orientation) { m_orientation = orientati
on; } |
99 void setSyntheticBold(bool syntheticBold) { m_syntheticBold = syntheticBold;
} | 80 void setSyntheticBold(bool syntheticBold) { m_syntheticBold = syntheticBold;
} |
100 void setSyntheticItalic(bool syntheticItalic) { m_syntheticItalic = syntheti
cItalic; } | 81 void setSyntheticItalic(bool syntheticItalic) { m_syntheticItalic = syntheti
cItalic; } |
101 bool operator==(const FontPlatformData&) const; | 82 bool operator==(const FontPlatformData&) const; |
102 FontPlatformData& operator=(const FontPlatformData&); | 83 FontPlatformData& operator=(const FontPlatformData&); |
103 bool isHashTableDeletedValue() const { return m_isHashTableDeletedValue; } | 84 bool isHashTableDeletedValue() const { return m_isHashTableDeletedValue; } |
104 | 85 |
105 #if ENABLE(OPENTYPE_VERTICAL) | 86 #if ENABLE(OPENTYPE_VERTICAL) |
106 PassRefPtr<OpenTypeVerticalData> verticalData() const; | 87 PassRefPtr<OpenTypeVerticalData> verticalData() const; |
107 PassRefPtr<SharedBuffer> openTypeTable(uint32_t table) const; | 88 PassRefPtr<SharedBuffer> openTypeTable(uint32_t table) const; |
108 #endif | 89 #endif |
109 | 90 |
110 #ifndef NDEBUG | 91 #ifndef NDEBUG |
111 String description() const; | 92 String description() const; |
112 #endif | 93 #endif |
113 | 94 |
114 HarfBuzzFace* harfBuzzFace() const; | |
115 | |
116 // The returned styles are all actual styles without FontRenderStyle::NoPref
erence. | 95 // The returned styles are all actual styles without FontRenderStyle::NoPref
erence. |
117 const FontRenderStyle& fontRenderStyle() const { return m_style; } | 96 const FontRenderStyle& fontRenderStyle() const { return m_style; } |
| 97 void setupPaint(SkPaint*, GraphicsContext* = 0) const; |
118 | 98 |
119 // ------------------------------------------------------------------------- | 99 #if OS(WIN) |
120 // Global font preferences... | 100 int paintTextFlags() const { return m_paintTextFlags; } |
121 | 101 #else |
122 static void setHinting(SkPaint::Hinting); | 102 static void setHinting(SkPaint::Hinting); |
123 static void setAutoHint(bool); | 103 static void setAutoHint(bool); |
124 static void setUseBitmaps(bool); | 104 static void setUseBitmaps(bool); |
125 static void setAntiAlias(bool); | 105 static void setAntiAlias(bool); |
126 static void setSubpixelRendering(bool); | 106 static void setSubpixelRendering(bool); |
| 107 #endif |
127 | 108 |
128 private: | 109 private: |
| 110 bool static defaultUseSubpixelPositioning(); |
| 111 #if !OS(WIN) |
129 void getRenderStyleForStrike(const char*, int); | 112 void getRenderStyleForStrike(const char*, int); |
130 void querySystemForRenderStyle(bool useSkiaSubpixelPositioning); | 113 void querySystemForRenderStyle(bool useSkiaSubpixelPositioning); |
| 114 #endif |
131 | 115 |
132 RefPtr<SkTypeface> m_typeface; | 116 RefPtr<SkTypeface> m_typeface; |
| 117 #if !OS(WIN) |
133 CString m_family; | 118 CString m_family; |
| 119 #endif |
134 float m_textSize; | 120 float m_textSize; |
135 bool m_syntheticBold; | 121 bool m_syntheticBold; |
136 bool m_syntheticItalic; | 122 bool m_syntheticItalic; |
137 FontOrientation m_orientation; | 123 FontOrientation m_orientation; |
138 FontRenderStyle m_style; | 124 FontRenderStyle m_style; |
139 mutable RefPtr<HarfBuzzFace> m_harfBuzzFace; | 125 mutable RefPtr<HarfBuzzFace> m_harfBuzzFace; |
140 bool m_isHashTableDeletedValue; | 126 bool m_isHashTableDeletedValue; |
| 127 #if OS(WIN) |
| 128 int m_paintTextFlags; |
| 129 bool m_useSubpixelPositioning; |
| 130 #endif |
141 }; | 131 }; |
142 | 132 |
143 } // namespace WebCore | 133 } // namespace WebCore |
144 | 134 |
145 #endif // ifdef FontPlatformDataHarfBuzz_h | 135 #endif // ifdef FontPlatformDataHarfBuzz_h |
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