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| 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 "platform/fonts/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, PassRefPtr<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 bool isEntireRange() const { return !m_from && m_to >= 0x10ffff; } | |
| 47 PassRefPtr<SimpleFontData> fontData() const { return m_fontData; } | |
| 48 | |
| 49 private: | |
| 50 UChar32 m_from; | |
| 51 UChar32 m_to; | |
| 52 RefPtr<SimpleFontData> m_fontData; | |
| 53 }; | |
| 54 | |
| 55 class SegmentedFontData : public FontData { | |
| 56 public: | |
| 57 static PassRefPtr<SegmentedFontData> create() { return adoptRef(new Segmente
dFontData); } | |
| 58 | |
| 59 virtual ~SegmentedFontData(); | |
| 60 | |
| 61 void appendRange(const FontDataRange& range) { m_ranges.append(range); } | |
| 62 unsigned numRanges() const { return m_ranges.size(); } | |
| 63 const FontDataRange& rangeAt(unsigned i) const { return m_ranges[i]; } | |
| 64 | |
| 65 #ifndef NDEBUG | |
| 66 virtual String description() const; | |
| 67 #endif | |
| 68 | |
| 69 private: | |
| 70 SegmentedFontData() { } | |
| 71 | |
| 72 virtual const SimpleFontData* fontDataForCharacter(UChar32) const OVERRIDE; | |
| 73 virtual bool containsCharacters(const UChar*, int length) const OVERRIDE; | |
| 74 | |
| 75 virtual bool isCustomFont() const OVERRIDE; | |
| 76 virtual bool isLoading() const OVERRIDE; | |
| 77 virtual bool isLoadingFallback() const OVERRIDE; | |
| 78 virtual bool isSegmented() const OVERRIDE; | |
| 79 | |
| 80 bool containsCharacter(UChar32) const; | |
| 81 | |
| 82 Vector<FontDataRange, 1> m_ranges; | |
| 83 }; | |
| 84 | |
| 85 inline SegmentedFontData* toSegmentedFontData(FontData* fontData) | |
| 86 { | |
| 87 ASSERT_WITH_SECURITY_IMPLICATION(!fontData || fontData->isSegmented()); | |
| 88 return static_cast<SegmentedFontData*>(fontData); | |
| 89 } | |
| 90 | |
| 91 } // namespace WebCore | |
| 92 | |
| 93 #endif // SegmentedFontData_h | |
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Chromium Code Reviews
Issue 99103006:
Moving GraphicsContext and dependencies from core to platform. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk