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1 /* | 1 /* |
2 * This file is part of the internal font implementation. | 2 * This file is part of the internal font implementation. |
3 * | 3 * |
4 * Copyright (C) 2006, 2008, 2010 Apple Inc. All rights reserved. | 4 * Copyright (C) 2006, 2008, 2010 Apple Inc. All rights reserved. |
5 * Copyright (C) 2007-2008 Torch Mobile, Inc. | 5 * Copyright (C) 2007-2008 Torch Mobile, Inc. |
6 * | 6 * |
7 * This library is free software; you can redistribute it and/or | 7 * This library is free software; you can redistribute it and/or |
8 * modify it under the terms of the GNU Library General Public | 8 * modify it under the terms of the GNU Library General Public |
9 * License as published by the Free Software Foundation; either | 9 * License as published by the Free Software Foundation; either |
10 * version 2 of the License, or (at your option) any later version. | 10 * version 2 of the License, or (at your option) any later version. |
11 * | 11 * |
12 * This library is distributed in the hope that it will be useful, | 12 * This library is distributed in the hope that it will be useful, |
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 * Library General Public License for more details. | 15 * Library General Public License for more details. |
16 * | 16 * |
17 * You should have received a copy of the GNU Library General Public License | 17 * You should have received a copy of the GNU Library General Public License |
18 * along with this library; see the file COPYING.LIB. If not, write to | 18 * along with this library; see the file COPYING.LIB. If not, write to |
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 * Boston, MA 02110-1301, USA. | 20 * Boston, MA 02110-1301, USA. |
21 * | 21 * |
22 */ | 22 */ |
23 | 23 |
24 #ifndef SimpleFontData_h | 24 #ifndef SimpleFontData_h |
25 #define SimpleFontData_h | 25 #define SimpleFontData_h |
26 | 26 |
27 #include "platform/PlatformExport.h" | 27 #include "platform/PlatformExport.h" |
28 #include "platform/fonts/CustomFontData.h" | 28 #include "platform/fonts/CustomFontData.h" |
| 29 #include "platform/fonts/FixedPitchFontType.h" |
29 #include "platform/fonts/FontBaseline.h" | 30 #include "platform/fonts/FontBaseline.h" |
30 #include "platform/fonts/FontData.h" | 31 #include "platform/fonts/FontData.h" |
31 #include "platform/fonts/FontMetrics.h" | 32 #include "platform/fonts/FontMetrics.h" |
32 #include "platform/fonts/FontPlatformData.h" | 33 #include "platform/fonts/FontPlatformData.h" |
33 #include "platform/fonts/GlyphMetricsMap.h" | 34 #include "platform/fonts/GlyphMetricsMap.h" |
34 #include "platform/fonts/GlyphPageTreeNode.h" | 35 #include "platform/fonts/GlyphPageTreeNode.h" |
35 #include "platform/fonts/TypesettingFeatures.h" | 36 #include "platform/fonts/TypesettingFeatures.h" |
36 #include "platform/fonts/opentype/OpenTypeVerticalData.h" | 37 #include "platform/fonts/opentype/OpenTypeVerticalData.h" |
37 #include "platform/geometry/FloatRect.h" | 38 #include "platform/geometry/FloatRect.h" |
38 #include "wtf/OwnPtr.h" | 39 #include "wtf/OwnPtr.h" |
39 #include "wtf/PassOwnPtr.h" | 40 #include "wtf/PassOwnPtr.h" |
40 #include "wtf/text/StringHash.h" | 41 #include "wtf/text/StringHash.h" |
41 | 42 |
42 #if OS(MACOSX) | 43 #if OS(MACOSX) |
43 #include "wtf/RetainPtr.h" | 44 #include "wtf/RetainPtr.h" |
44 #endif | 45 #endif |
45 | 46 |
46 namespace blink { | 47 namespace blink { |
47 | 48 |
48 class FontDescription; | 49 class FontDescription; |
49 | 50 |
50 enum FontDataVariant { AutoVariant, NormalVariant, SmallCapsVariant, EmphasisMar
kVariant, BrokenIdeographVariant }; | 51 enum FontDataVariant { AutoVariant, NormalVariant, SmallCapsVariant, EmphasisMar
kVariant, BrokenIdeographVariant }; |
51 enum Pitch { UnknownPitch, FixedPitch, VariablePitch }; | |
52 | 52 |
53 class PLATFORM_EXPORT SimpleFontData : public FontData { | 53 class PLATFORM_EXPORT SimpleFontData : public FontData { |
54 public: | 54 public: |
55 // Used to create platform fonts. | 55 // Used to create platform fonts. |
56 static PassRefPtr<SimpleFontData> create(const FontPlatformData& platformDat
a, PassRefPtr<CustomFontData> customData = nullptr, bool isTextOrientationFallba
ck = false) | 56 static PassRefPtr<SimpleFontData> create(const FontPlatformData& platformDat
a, PassRefPtr<CustomFontData> customData = nullptr, bool isTextOrientationFallba
ck = false) |
57 { | 57 { |
58 return adoptRef(new SimpleFontData(platformData, customData, isTextOrien
tationFallback)); | 58 return adoptRef(new SimpleFontData(platformData, customData, isTextOrien
tationFallback)); |
59 } | 59 } |
60 | 60 |
61 virtual ~SimpleFontData(); | 61 virtual ~SimpleFontData(); |
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114 void setZeroWidthSpaceGlyph(Glyph spaceGlyph) { m_zeroWidthSpaceGlyph = spac
eGlyph; } | 114 void setZeroWidthSpaceGlyph(Glyph spaceGlyph) { m_zeroWidthSpaceGlyph = spac
eGlyph; } |
115 bool isZeroWidthSpaceGlyph(Glyph glyph) const { return glyph == m_zeroWidthS
paceGlyph && glyph; } | 115 bool isZeroWidthSpaceGlyph(Glyph glyph) const { return glyph == m_zeroWidthS
paceGlyph && glyph; } |
116 Glyph zeroGlyph() const { return m_zeroGlyph; } | 116 Glyph zeroGlyph() const { return m_zeroGlyph; } |
117 void setZeroGlyph(Glyph zeroGlyph) { m_zeroGlyph = zeroGlyph; } | 117 void setZeroGlyph(Glyph zeroGlyph) { m_zeroGlyph = zeroGlyph; } |
118 | 118 |
119 virtual const SimpleFontData* fontDataForCharacter(UChar32) const override; | 119 virtual const SimpleFontData* fontDataForCharacter(UChar32) const override; |
120 | 120 |
121 Glyph glyphForCharacter(UChar32) const; | 121 Glyph glyphForCharacter(UChar32) const; |
122 | 122 |
123 void determinePitch(); | 123 void determinePitch(); |
124 Pitch pitch() const { return m_treatAsFixedPitch ? FixedPitch : VariablePitc
h; } | 124 FixedPitchFontType pitch() const { return m_pitch; } |
125 | 125 |
126 virtual bool isCustomFont() const override { return m_customFontData; } | 126 virtual bool isCustomFont() const override { return m_customFontData; } |
127 virtual bool isLoading() const override { return m_customFontData ? m_custom
FontData->isLoading() : false; } | 127 virtual bool isLoading() const override { return m_customFontData ? m_custom
FontData->isLoading() : false; } |
128 virtual bool isLoadingFallback() const override { return m_customFontData ?
m_customFontData->isLoadingFallback() : false; } | 128 virtual bool isLoadingFallback() const override { return m_customFontData ?
m_customFontData->isLoadingFallback() : false; } |
129 virtual bool isSegmented() const override; | 129 virtual bool isSegmented() const override; |
130 virtual bool shouldSkipDrawing() const override { return m_customFontData &&
m_customFontData->shouldSkipDrawing(); } | 130 virtual bool shouldSkipDrawing() const override { return m_customFontData &&
m_customFontData->shouldSkipDrawing(); } |
131 | 131 |
132 const GlyphData& missingGlyphData() const { return m_missingGlyphData; } | 132 const GlyphData& missingGlyphData() const { return m_missingGlyphData; } |
133 void setMissingGlyphData(const GlyphData& glyphData) { m_missingGlyphData =
glyphData; } | 133 void setMissingGlyphData(const GlyphData& glyphData) { m_missingGlyphData =
glyphData; } |
134 | 134 |
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157 | 157 |
158 FontMetrics m_fontMetrics; | 158 FontMetrics m_fontMetrics; |
159 float m_maxCharWidth; | 159 float m_maxCharWidth; |
160 float m_avgCharWidth; | 160 float m_avgCharWidth; |
161 | 161 |
162 FontPlatformData m_platformData; | 162 FontPlatformData m_platformData; |
163 | 163 |
164 mutable OwnPtr<GlyphMetricsMap<FloatRect>> m_glyphToBoundsMap; | 164 mutable OwnPtr<GlyphMetricsMap<FloatRect>> m_glyphToBoundsMap; |
165 mutable GlyphMetricsMap<float> m_glyphToWidthMap; | 165 mutable GlyphMetricsMap<float> m_glyphToWidthMap; |
166 | 166 |
167 bool m_treatAsFixedPitch; | 167 FixedPitchFontType m_pitch; |
168 | 168 |
169 bool m_isTextOrientationFallback; | 169 bool m_isTextOrientationFallback; |
170 bool m_isBrokenIdeographFallback; | 170 bool m_isBrokenIdeographFallback; |
171 RefPtr<OpenTypeVerticalData> m_verticalData; | 171 RefPtr<OpenTypeVerticalData> m_verticalData; |
172 bool m_hasVerticalGlyphs; | 172 bool m_hasVerticalGlyphs; |
173 | 173 |
174 Glyph m_spaceGlyph; | 174 Glyph m_spaceGlyph; |
175 float m_spaceWidth; | 175 float m_spaceWidth; |
176 Glyph m_zeroGlyph; | 176 Glyph m_zeroGlyph; |
177 | 177 |
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234 width = platformWidthForGlyph(glyph); | 234 width = platformWidthForGlyph(glyph); |
235 | 235 |
236 m_glyphToWidthMap.setMetricsForGlyph(glyph, width); | 236 m_glyphToWidthMap.setMetricsForGlyph(glyph, width); |
237 return width; | 237 return width; |
238 } | 238 } |
239 | 239 |
240 DEFINE_FONT_DATA_TYPE_CASTS(SimpleFontData, false); | 240 DEFINE_FONT_DATA_TYPE_CASTS(SimpleFontData, false); |
241 | 241 |
242 } // namespace blink | 242 } // namespace blink |
243 #endif // SimpleFontData_h | 243 #endif // SimpleFontData_h |
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