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| 1 /* | 1 /* |
| 2 * Copyright (C) 2003, 2006, 2008, 2011 Apple Inc. All rights reserved. | 2 * Copyright (C) 2003, 2006, 2008, 2011 Apple Inc. All rights reserved. |
| 3 * Copyright (C) 2008 Holger Hans Peter Freyther | 3 * Copyright (C) 2008 Holger Hans Peter Freyther |
| 4 * Copyright (C) 2014 Google Inc. All rights reserved. | 4 * Copyright (C) 2014 Google Inc. All rights reserved. |
| 5 * | 5 * |
| 6 * This library is free software; you can redistribute it and/or | 6 * This library is free software; you can redistribute it and/or |
| 7 * modify it under the terms of the GNU Library General Public | 7 * modify it under the terms of the GNU Library General Public |
| 8 * License as published by the Free Software Foundation; either | 8 * License as published by the Free Software Foundation; either |
| 9 * version 2 of the License, or (at your option) any later version. | 9 * version 2 of the License, or (at your option) any later version. |
| 10 * | 10 * |
| 11 * This library is distributed in the hope that it will be useful, | 11 * This library is distributed in the hope that it will be useful, |
| 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 * Library General Public License for more details. | 14 * Library General Public License for more details. |
| 15 * | 15 * |
| 16 * You should have received a copy of the GNU Library General Public License | 16 * You should have received a copy of the GNU Library General Public License |
| 17 * along with this library; see the file COPYING.LIB. If not, write to | 17 * along with this library; see the file COPYING.LIB. If not, write to |
| 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 19 * Boston, MA 02110-1301, USA. | 19 * Boston, MA 02110-1301, USA. |
| 20 * | 20 * |
| 21 */ | 21 */ |
| 22 | 22 |
| 23 #ifndef SimpleShaper_h | 23 #ifndef SimpleShaper_h |
| 24 #define SimpleShaper_h | 24 #define SimpleShaper_h |
| 25 | 25 |
| 26 #include "platform/PlatformExport.h" | 26 #include "platform/PlatformExport.h" |
| 27 #include "platform/fonts/SVGGlyph.h" | |
| 28 #include "platform/text/TextRun.h" | 27 #include "platform/text/TextRun.h" |
| 29 #include "wtf/HashSet.h" | 28 #include "wtf/HashSet.h" |
| 30 #include "wtf/Vector.h" | 29 #include "wtf/Vector.h" |
| 31 #include "wtf/unicode/Unicode.h" | 30 #include "wtf/unicode/Unicode.h" |
| 32 | 31 |
| 33 namespace blink { | 32 namespace blink { |
| 34 | 33 |
| 35 class Font; | 34 class Font; |
| 36 class GlyphBuffer; | 35 class GlyphBuffer; |
| 37 class SimpleFontData; | 36 class SimpleFontData; |
| (...skipping 20 matching lines...) Expand all Loading... |
| 58 | 57 |
| 59 SimpleShaper(const Font*, const TextRun&, HashSet<const SimpleFontData*>* fa
llbackFonts = 0, GlyphBounds* = 0, bool forTextEmphasis = false); | 58 SimpleShaper(const Font*, const TextRun&, HashSet<const SimpleFontData*>* fa
llbackFonts = 0, GlyphBounds* = 0, bool forTextEmphasis = false); |
| 60 | 59 |
| 61 unsigned advance(unsigned to, GlyphBuffer* = 0); | 60 unsigned advance(unsigned to, GlyphBuffer* = 0); |
| 62 bool advanceOneCharacter(float& width); | 61 bool advanceOneCharacter(float& width); |
| 63 | 62 |
| 64 const TextRun& run() const { return m_run; } | 63 const TextRun& run() const { return m_run; } |
| 65 float runWidthSoFar() const { return m_runWidthSoFar; } | 64 float runWidthSoFar() const { return m_runWidthSoFar; } |
| 66 unsigned currentOffset() { return m_currentCharacter; } | 65 unsigned currentOffset() { return m_currentCharacter; } |
| 67 | 66 |
| 68 #if ENABLE(SVG_FONTS) | |
| 69 Vector<SVGGlyph::ArabicForm>& arabicForms() { return m_arabicForms; } | |
| 70 #endif | |
| 71 | |
| 72 private: | 67 private: |
| 73 const Font* m_font; | 68 const Font* m_font; |
| 74 const TextRun& m_run; | 69 const TextRun& m_run; |
| 75 unsigned m_currentCharacter; | 70 unsigned m_currentCharacter; |
| 76 float m_runWidthSoFar; | 71 float m_runWidthSoFar; |
| 77 float m_expansion; | 72 float m_expansion; |
| 78 float m_expansionPerOpportunity; | 73 float m_expansionPerOpportunity; |
| 79 bool m_isAfterExpansion; | 74 bool m_isAfterExpansion; |
| 80 | 75 |
| 81 #if ENABLE(SVG_FONTS) | |
| 82 Vector<SVGGlyph::ArabicForm> m_arabicForms; | |
| 83 #endif | |
| 84 struct CharacterData { | 76 struct CharacterData { |
| 85 UChar32 character; | 77 UChar32 character; |
| 86 unsigned clusterLength; | 78 unsigned clusterLength; |
| 87 int characterOffset; | 79 int characterOffset; |
| 88 }; | 80 }; |
| 89 | 81 |
| 90 GlyphData glyphDataForCharacter(CharacterData&, bool normalizeSpace = false)
; | 82 GlyphData glyphDataForCharacter(CharacterData&, bool normalizeSpace = false)
; |
| 91 float characterWidth(UChar32, const GlyphData&) const; | 83 float characterWidth(UChar32, const GlyphData&) const; |
| 92 void cacheFallbackFont(const SimpleFontData*, const SimpleFontData* primaryF
ont); | 84 void cacheFallbackFont(const SimpleFontData*, const SimpleFontData* primaryF
ont); |
| 93 float adjustSpacing(float, const CharacterData&, const SimpleFontData&, Glyp
hBuffer*); | 85 float adjustSpacing(float, const CharacterData&, const SimpleFontData&, Glyp
hBuffer*); |
| 94 void updateGlyphBounds(const GlyphData&, float width, bool firstCharacter); | 86 void updateGlyphBounds(const GlyphData&, float width, bool firstCharacter); |
| 95 | 87 |
| 96 template <typename TextIterator> | 88 template <typename TextIterator> |
| 97 unsigned advanceInternal(TextIterator&, GlyphBuffer*); | 89 unsigned advanceInternal(TextIterator&, GlyphBuffer*); |
| 98 | 90 |
| 99 HashSet<const SimpleFontData*>* m_fallbackFonts; | 91 HashSet<const SimpleFontData*>* m_fallbackFonts; |
| 100 GlyphBounds* m_bounds; | 92 GlyphBounds* m_bounds; |
| 101 bool m_forTextEmphasis : 1; | 93 bool m_forTextEmphasis : 1; |
| 102 }; | 94 }; |
| 103 | 95 |
| 104 } // namespace blink | 96 } // namespace blink |
| 105 | 97 |
| 106 #endif | 98 #endif |
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