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1 /* | 1 /* |
2 * Copyright (C) 2006, 2010 Apple Inc. All rights reserved. | 2 * Copyright (C) 2006, 2010 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * This library is free software; you can redistribute it and/or | 4 * This library is free software; you can redistribute it and/or |
5 * modify it under the terms of the GNU Library General Public | 5 * modify it under the terms of the GNU Library General Public |
6 * License as published by the Free Software Foundation; either | 6 * License as published by the Free Software Foundation; either |
7 * version 2 of the License, or (at your option) any later version. | 7 * version 2 of the License, or (at your option) any later version. |
8 * | 8 * |
9 * This library is distributed in the hope that it will be useful, | 9 * This library is distributed in the hope that it will be useful, |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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66 }; | 66 }; |
67 | 67 |
68 static PassRefPtr<FontFallbackList> create() { return adoptRef(new FontFallb
ackList()); } | 68 static PassRefPtr<FontFallbackList> create() { return adoptRef(new FontFallb
ackList()); } |
69 | 69 |
70 ~FontFallbackList() { releaseFontData(); } | 70 ~FontFallbackList() { releaseFontData(); } |
71 void invalidate(PassRefPtr<FontSelector>); | 71 void invalidate(PassRefPtr<FontSelector>); |
72 | 72 |
73 bool isFixedPitch(const Font* f) const { if (m_pitch == UnknownPitch) determ
inePitch(f); return m_pitch == FixedPitch; }; | 73 bool isFixedPitch(const Font* f) const { if (m_pitch == UnknownPitch) determ
inePitch(f); return m_pitch == FixedPitch; }; |
74 void determinePitch(const Font*) const; | 74 void determinePitch(const Font*) const; |
75 | 75 |
76 bool loadingCustomFonts() const { return m_loadingCustomFonts; } | 76 bool loadingCustomFonts() const; |
77 | 77 |
78 FontSelector* fontSelector() const { return m_fontSelector.get(); } | 78 FontSelector* fontSelector() const { return m_fontSelector.get(); } |
79 // FIXME: It should be possible to combine fontSelectorVersion and generatio
n. | 79 // FIXME: It should be possible to combine fontSelectorVersion and generatio
n. |
80 unsigned fontSelectorVersion() const { return m_fontSelectorVersion; } | 80 unsigned fontSelectorVersion() const { return m_fontSelectorVersion; } |
81 unsigned generation() const { return m_generation; } | 81 unsigned generation() const { return m_generation; } |
82 | 82 |
83 WidthCache& widthCache() const { return m_widthCache; } | 83 WidthCache& widthCache() const { return m_widthCache; } |
84 | 84 |
85 private: | 85 private: |
86 FontFallbackList(); | 86 FontFallbackList(); |
87 | 87 |
88 const SimpleFontData* primarySimpleFontData(const Font* f) | 88 const SimpleFontData* primarySimpleFontData(const Font* f) |
89 { | 89 { |
90 ASSERT(isMainThread()); | 90 ASSERT(isMainThread()); |
91 if (!m_cachedPrimarySimpleFontData) | 91 if (!m_cachedPrimarySimpleFontData) { |
92 m_cachedPrimarySimpleFontData = primaryFontData(f)->fontDataForChara
cter(' '); | 92 m_cachedPrimarySimpleFontData = primaryFontData(f)->fontDataForChara
cter(' '); |
| 93 if (m_cachedPrimarySimpleFontData) |
| 94 m_cachedPrimarySimpleFontData->beginLoadIfNeeded(); |
| 95 } |
93 return m_cachedPrimarySimpleFontData; | 96 return m_cachedPrimarySimpleFontData; |
94 } | 97 } |
95 | 98 |
96 const FontData* primaryFontData(const Font* f) const { return fontDataAt(f,
0); } | 99 const FontData* primaryFontData(const Font* f) const { return fontDataAt(f,
0); } |
97 const FontData* fontDataAt(const Font*, unsigned index) const; | 100 const FontData* fontDataAt(const Font*, unsigned index) const; |
98 | 101 |
99 void setPlatformFont(const FontPlatformData&); | 102 void setPlatformFont(const FontPlatformData&); |
100 | 103 |
101 void releaseFontData(); | 104 void releaseFontData(); |
102 | 105 |
103 mutable Vector<RefPtr<FontData>, 1> m_fontList; | 106 mutable Vector<RefPtr<FontData>, 1> m_fontList; |
104 mutable GlyphPages m_pages; | 107 mutable GlyphPages m_pages; |
105 mutable GlyphPageTreeNode* m_pageZero; | 108 mutable GlyphPageTreeNode* m_pageZero; |
106 mutable const SimpleFontData* m_cachedPrimarySimpleFontData; | 109 mutable const SimpleFontData* m_cachedPrimarySimpleFontData; |
107 RefPtr<FontSelector> m_fontSelector; | 110 RefPtr<FontSelector> m_fontSelector; |
108 mutable WidthCache m_widthCache; | 111 mutable WidthCache m_widthCache; |
109 unsigned m_fontSelectorVersion; | 112 unsigned m_fontSelectorVersion; |
110 mutable int m_familyIndex; | 113 mutable int m_familyIndex; |
111 unsigned short m_generation; | 114 unsigned short m_generation; |
112 mutable unsigned m_pitch : 3; // Pitch | 115 mutable unsigned m_pitch : 3; // Pitch |
113 mutable bool m_loadingCustomFonts : 1; | 116 mutable bool m_loadingCustomFonts : 1; |
114 | 117 |
115 friend class Font; | 118 friend class Font; |
116 }; | 119 }; |
117 | 120 |
118 } | 121 } |
119 | 122 |
120 #endif | 123 #endif |
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