| OLD | NEW |
|---|
| (Empty) |
| 1 /* | |
| 2 * Copyright (C) 2003, 2006, 2008, 2011 Apple Inc. All rights reserved. | |
| 3 * Copyright (C) 2008 Holger Hans Peter Freyther | |
| 4 * | |
| 5 * This library is free software; you can redistribute it and/or | |
| 6 * modify it under the terms of the GNU Library General Public | |
| 7 * License as published by the Free Software Foundation; either | |
| 8 * version 2 of the License, or (at your option) any later version. | |
| 9 * | |
| 10 * This library is distributed in the hope that it will be useful, | |
| 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 * Library General Public License for more details. | |
| 14 * | |
| 15 * You should have received a copy of the GNU Library General Public License | |
| 16 * along with this library; see the file COPYING.LIB. If not, write to | |
| 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
| 18 * Boston, MA 02110-1301, USA. | |
| 19 * | |
| 20 */ | |
| 21 | |
| 22 #ifndef WidthIterator_h | |
| 23 #define WidthIterator_h | |
| 24 | |
| 25 #include "core/platform/graphics/Font.h" | |
| 26 #include "core/platform/graphics/SVGGlyph.h" | |
| 27 #include "platform/graphics/TextRun.h" | |
| 28 #include "wtf/HashSet.h" | |
| 29 #include "wtf/unicode/Unicode.h" | |
| 30 #include "wtf/Vector.h" | |
| 31 | |
| 32 namespace WebCore { | |
| 33 | |
| 34 class Font; | |
| 35 class GlyphBuffer; | |
| 36 class SimpleFontData; | |
| 37 class TextRun; | |
| 38 struct GlyphData; | |
| 39 | |
| 40 struct WidthIterator { | |
| 41 WTF_MAKE_FAST_ALLOCATED; | |
| 42 public: | |
| 43 WidthIterator(const Font*, const TextRun&, HashSet<const SimpleFontData*>* f
allbackFonts = 0, bool accountForGlyphBounds = false, bool forTextEmphasis = fal
se); | |
| 44 | |
| 45 unsigned advance(int to, GlyphBuffer*); | |
| 46 bool advanceOneCharacter(float& width, GlyphBuffer&); | |
| 47 | |
| 48 float maxGlyphBoundingBoxY() const { ASSERT(m_accountForGlyphBounds); return
m_maxGlyphBoundingBoxY; } | |
| 49 float minGlyphBoundingBoxY() const { ASSERT(m_accountForGlyphBounds); return
m_minGlyphBoundingBoxY; } | |
| 50 float firstGlyphOverflow() const { ASSERT(m_accountForGlyphBounds); return m
_firstGlyphOverflow; } | |
| 51 float lastGlyphOverflow() const { ASSERT(m_accountForGlyphBounds); return m_
lastGlyphOverflow; } | |
| 52 | |
| 53 const TextRun& run() const { return m_run; } | |
| 54 float runWidthSoFar() const { return m_runWidthSoFar; } | |
| 55 | |
| 56 #if ENABLE(SVG_FONTS) | |
| 57 String lastGlyphName() const { return m_lastGlyphName; } | |
| 58 void setLastGlyphName(const String& name) { m_lastGlyphName = name; } | |
| 59 Vector<SVGGlyph::ArabicForm>& arabicForms() { return m_arabicForms; } | |
| 60 #endif | |
| 61 | |
| 62 static bool supportsTypesettingFeatures(const Font& font) | |
| 63 { | |
| 64 | |
| 65 return !font.typesettingFeatures(); | |
| 66 } | |
| 67 | |
| 68 const Font* m_font; | |
| 69 | |
| 70 const TextRun& m_run; | |
| 71 | |
| 72 unsigned m_currentCharacter; | |
| 73 float m_runWidthSoFar; | |
| 74 float m_expansion; | |
| 75 float m_expansionPerOpportunity; | |
| 76 bool m_isAfterExpansion; | |
| 77 float m_finalRoundingWidth; | |
| 78 | |
| 79 #if ENABLE(SVG_FONTS) | |
| 80 String m_lastGlyphName; | |
| 81 Vector<SVGGlyph::ArabicForm> m_arabicForms; | |
| 82 #endif | |
| 83 | |
| 84 private: | |
| 85 GlyphData glyphDataForCharacter(UChar32, bool mirror, int currentCharacter,
unsigned& advanceLength); | |
| 86 template <typename TextIterator> | |
| 87 inline unsigned advanceInternal(TextIterator&, GlyphBuffer*); | |
| 88 | |
| 89 bool shouldApplyFontTransforms() const { return m_run.length() > 1 && (m_typ
esettingFeatures & (Kerning | Ligatures)); } | |
| 90 | |
| 91 TypesettingFeatures m_typesettingFeatures; | |
| 92 HashSet<const SimpleFontData*>* m_fallbackFonts; | |
| 93 bool m_accountForGlyphBounds; | |
| 94 float m_maxGlyphBoundingBoxY; | |
| 95 float m_minGlyphBoundingBoxY; | |
| 96 float m_firstGlyphOverflow; | |
| 97 float m_lastGlyphOverflow; | |
| 98 bool m_forTextEmphasis; | |
| 99 }; | |
| 100 | |
| 101 } | |
| 102 | |
| 103 #endif | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 99103006:
Moving GraphicsContext and dependencies from core to platform. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk