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1 /* | 1 /* |
2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) |
3 * (C) 2000 Antti Koivisto (koivisto@kde.org) | 3 * (C) 2000 Antti Koivisto (koivisto@kde.org) |
4 * (C) 2000 Dirk Mueller (mueller@kde.org) | 4 * (C) 2000 Dirk Mueller (mueller@kde.org) |
5 * Copyright (C) 2003, 2006, 2007, 2010, 2011 Apple Inc. All rights reserved. | 5 * Copyright (C) 2003, 2006, 2007, 2010, 2011 Apple Inc. All rights reserved. |
6 * Copyright (C) 2008 Holger Hans Peter Freyther | 6 * Copyright (C) 2008 Holger Hans Peter Freyther |
7 * | 7 * |
8 * This library is free software; you can redistribute it and/or | 8 * This library is free software; you can redistribute it and/or |
9 * modify it under the terms of the GNU Library General Public | 9 * modify it under the terms of the GNU Library General Public |
10 * License as published by the Free Software Foundation; either | 10 * License as published by the Free Software Foundation; either |
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94 CustomFontNotReadyAction, | 94 CustomFontNotReadyAction, |
95 float deviceScaleFactor, | 95 float deviceScaleFactor, |
96 const SkPaint&) const; | 96 const SkPaint&) const; |
97 void drawEmphasisMarks(SkCanvas*, | 97 void drawEmphasisMarks(SkCanvas*, |
98 const TextRunPaintInfo&, | 98 const TextRunPaintInfo&, |
99 const AtomicString& mark, | 99 const AtomicString& mark, |
100 const FloatPoint&, | 100 const FloatPoint&, |
101 float deviceScaleFactor, | 101 float deviceScaleFactor, |
102 const SkPaint&) const; | 102 const SkPaint&) const; |
103 | 103 |
104 // Glyph bounds will be the minimum rect containing all glyph strokes, in coor
dinates using | 104 // Glyph bounds will be the minimum rect containing all glyph strokes, in |
105 // (<text run x position>, <baseline position>) as the origin. | 105 // coordinates using (<text run x position>, <baseline position>) as the |
| 106 // origin. |
106 float width(const TextRun&, | 107 float width(const TextRun&, |
107 HashSet<const SimpleFontData*>* fallbackFonts = nullptr, | 108 HashSet<const SimpleFontData*>* fallbackFonts = nullptr, |
108 FloatRect* glyphBounds = nullptr) const; | 109 FloatRect* glyphBounds = nullptr) const; |
109 | 110 |
110 int offsetForPosition(const TextRun&, | 111 int offsetForPosition(const TextRun&, |
111 float position, | 112 float position, |
112 bool includePartialGlyphs) const; | 113 bool includePartialGlyphs) const; |
113 FloatRect selectionRectForText(const TextRun&, | 114 FloatRect selectionRectForText(const TextRun&, |
114 const FloatPoint&, | 115 const FloatPoint&, |
115 int h, | 116 int h, |
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215 private: | 216 private: |
216 bool shouldSkipDrawing() const { | 217 bool shouldSkipDrawing() const { |
217 return m_fontFallbackList && m_fontFallbackList->shouldSkipDrawing(); | 218 return m_fontFallbackList && m_fontFallbackList->shouldSkipDrawing(); |
218 } | 219 } |
219 | 220 |
220 FontDescription m_fontDescription; | 221 FontDescription m_fontDescription; |
221 mutable RefPtr<FontFallbackList> m_fontFallbackList; | 222 mutable RefPtr<FontFallbackList> m_fontFallbackList; |
222 mutable unsigned m_canShapeWordByWord : 1; | 223 mutable unsigned m_canShapeWordByWord : 1; |
223 mutable unsigned m_shapeWordByWordComputed : 1; | 224 mutable unsigned m_shapeWordByWordComputed : 1; |
224 | 225 |
225 // For accessing buildGlyphBuffer and retrieving fonts used in rendering a nod
e. | 226 // For accessing buildGlyphBuffer and retrieving fonts used in rendering a |
| 227 // node. |
226 friend class InspectorCSSAgent; | 228 friend class InspectorCSSAgent; |
227 }; | 229 }; |
228 | 230 |
229 inline Font::~Font() {} | 231 inline Font::~Font() {} |
230 | 232 |
231 inline const SimpleFontData* Font::primaryFont() const { | 233 inline const SimpleFontData* Font::primaryFont() const { |
232 ASSERT(m_fontFallbackList); | 234 ASSERT(m_fontFallbackList); |
233 return m_fontFallbackList->primarySimpleFontData(m_fontDescription); | 235 return m_fontFallbackList->primarySimpleFontData(m_fontDescription); |
234 } | 236 } |
235 | 237 |
236 inline const FontData* Font::fontDataAt(unsigned index) const { | 238 inline const FontData* Font::fontDataAt(unsigned index) const { |
237 ASSERT(m_fontFallbackList); | 239 ASSERT(m_fontFallbackList); |
238 return m_fontFallbackList->fontDataAt(m_fontDescription, index); | 240 return m_fontFallbackList->fontDataAt(m_fontDescription, index); |
239 } | 241 } |
240 | 242 |
241 inline FontSelector* Font::getFontSelector() const { | 243 inline FontSelector* Font::getFontSelector() const { |
242 return m_fontFallbackList ? m_fontFallbackList->getFontSelector() : 0; | 244 return m_fontFallbackList ? m_fontFallbackList->getFontSelector() : 0; |
243 } | 245 } |
244 | 246 |
245 inline float Font::tabWidth(const SimpleFontData& fontData, | 247 inline float Font::tabWidth(const SimpleFontData& fontData, |
246 const TabSize& tabSize, | 248 const TabSize& tabSize, |
247 float position) const { | 249 float position) const { |
248 float baseTabWidth = tabSize.getPixelSize(fontData.spaceWidth()); | 250 float baseTabWidth = tabSize.getPixelSize(fontData.spaceWidth()); |
249 if (!baseTabWidth) | 251 if (!baseTabWidth) |
250 return getFontDescription().letterSpacing(); | 252 return getFontDescription().letterSpacing(); |
251 float distanceToTabStop = baseTabWidth - fmodf(position, baseTabWidth); | 253 float distanceToTabStop = baseTabWidth - fmodf(position, baseTabWidth); |
252 | 254 |
253 // Let the minimum width be the half of the space width so that it's always re
cognizable. | 255 // Let the minimum width be the half of the space width so that it's always |
254 // if the distance to the next tab stop is less than that, advance an addition
al tab stop. | 256 // recognizable. if the distance to the next tab stop is less than that, |
| 257 // advance an additional tab stop. |
255 if (distanceToTabStop < fontData.spaceWidth() / 2) | 258 if (distanceToTabStop < fontData.spaceWidth() / 2) |
256 distanceToTabStop += baseTabWidth; | 259 distanceToTabStop += baseTabWidth; |
257 | 260 |
258 return distanceToTabStop; | 261 return distanceToTabStop; |
259 } | 262 } |
260 | 263 |
261 } // namespace blink | 264 } // namespace blink |
262 | 265 |
263 #endif | 266 #endif |
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