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| 1 /* | |
| 2 * Copyright (C) 2007, 2008, 2009, 2010 Apple Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' | |
| 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
| 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS | |
| 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
| 23 * THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #ifndef UniscribeController_h | |
| 27 #define UniscribeController_h | |
| 28 | |
| 29 #include <usp10.h> | |
| 30 #include "Font.h" | |
| 31 #include "GlyphBuffer.h" | |
| 32 #include <wtf/Vector.h> | |
| 33 | |
| 34 namespace WebCore { | |
| 35 | |
| 36 class UniscribeController { | |
| 37 public: | |
| 38 UniscribeController(const Font*, const TextRun&, HashSet<const SimpleFontDat
a*>* fallbackFonts = 0); | |
| 39 | |
| 40 // Advance and measure/place up to the specified character. | |
| 41 void advance(unsigned to, GlyphBuffer* = 0); | |
| 42 | |
| 43 // Compute the character offset for a given x coordinate. | |
| 44 int offsetForPosition(int x, bool includePartialGlyphs); | |
| 45 | |
| 46 // Returns the width of everything we've consumed so far. | |
| 47 float runWidthSoFar() const { return m_runWidthSoFar; } | |
| 48 | |
| 49 float minGlyphBoundingBoxX() const { return m_minGlyphBoundingBoxX; } | |
| 50 float maxGlyphBoundingBoxX() const { return m_maxGlyphBoundingBoxX; } | |
| 51 float minGlyphBoundingBoxY() const { return m_minGlyphBoundingBoxY; } | |
| 52 float maxGlyphBoundingBoxY() const { return m_maxGlyphBoundingBoxY; } | |
| 53 | |
| 54 private: | |
| 55 void resetControlAndState(); | |
| 56 | |
| 57 void itemizeShapeAndPlace(const UChar*, unsigned length, const SimpleFontDat
a*, GlyphBuffer*); | |
| 58 bool shapeAndPlaceItem(const UChar*, unsigned index, const SimpleFontData*,
GlyphBuffer*); | |
| 59 bool shape(const UChar* str, int len, SCRIPT_ITEM item, const SimpleFontData
* fontData, | |
| 60 Vector<WORD>& glyphs, Vector<WORD>& clusters, | |
| 61 Vector<SCRIPT_VISATTR>& visualAttributes); | |
| 62 | |
| 63 const Font& m_font; | |
| 64 const TextRun& m_run; | |
| 65 HashSet<const SimpleFontData*>* m_fallbackFonts; | |
| 66 FloatPoint m_glyphOrigin; | |
| 67 float m_minGlyphBoundingBoxX; | |
| 68 float m_maxGlyphBoundingBoxX; | |
| 69 float m_minGlyphBoundingBoxY; | |
| 70 float m_maxGlyphBoundingBoxY; | |
| 71 | |
| 72 SCRIPT_CONTROL m_control; | |
| 73 SCRIPT_STATE m_state; | |
| 74 Vector<SCRIPT_ITEM> m_items; | |
| 75 | |
| 76 unsigned m_currentCharacter; | |
| 77 int m_end; | |
| 78 | |
| 79 float m_runWidthSoFar; | |
| 80 float m_padding; | |
| 81 float m_padPerSpace; | |
| 82 | |
| 83 bool m_computingOffsetPosition; | |
| 84 bool m_includePartialGlyphs; | |
| 85 float m_offsetX; | |
| 86 int m_offsetPosition; | |
| 87 }; | |
| 88 | |
| 89 } | |
| 90 #endif | |
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Chromium Code Reviews
Issue 13642009:
WebCore: Remove PLATFORM(WIN) files we do not use. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk