1 /* 2 * Copyright (C) 2008, 2009 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 COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef SegmentedFontData_h 27 #define SegmentedFontData_h 28 29 #include "FontData.h" 30 #include <wtf/Vector.h> 31 32 namespace WebCore { 33 34 class SimpleFontData; 35 36 struct FontDataRange { 37 FontDataRange(UChar32 from, UChar32 to, const SimpleFontData* fontData) 38 : m_from(from) 39 , m_to(to) 40 , m_fontData(fontData) 41 { 42 } 43 44 UChar32 from() const { return m_from; } 45 UChar32 to() const { return m_to; } 46 const SimpleFontData* fontData() const { return m_fontData; } 47 48 private: 49 UChar32 m_from; 50 UChar32 m_to; 51 const SimpleFontData* m_fontData; 52 }; 53 54 class SegmentedFontData : public FontData { 55 public: 56 virtual ~SegmentedFontData(); 57 58 void appendRange(const FontDataRange& range) { m_ranges.append(range); } 59 unsigned numRanges() const { return m_ranges.size(); } 60 const FontDataRange& rangeAt(unsigned i) const { return m_ranges[i]; } 61 62 #ifndef NDEBUG 63 virtual String description() const; 64 #endif 65 66 private: 67 virtual const SimpleFontData* fontDataForCharacter(UChar32) const; 68 virtual bool containsCharacters(const UChar*, int length) const; 69 70 virtual bool isCustomFont() const; 71 virtual bool isLoading() const; 72 virtual bool isSegmented() const; 73 74 bool containsCharacter(UChar32) const; 75 76 Vector<FontDataRange, 1> m_ranges; 77 }; 78 79 } // namespace WebCore 80 81 #endif // SegmentedFontData_h 82
