1 /* 2 * Copyright (C) 2008 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 FontData_h 27 #define FontData_h 28 29 #include <wtf/FastAllocBase.h> 30 #include <wtf/Forward.h> 31 #include <wtf/Noncopyable.h> 32 #include <wtf/unicode/Unicode.h> 33 34 namespace WebCore { 35 36 class SimpleFontData; 37 38 class FontData { 39 WTF_MAKE_NONCOPYABLE(FontData); WTF_MAKE_FAST_ALLOCATED; 40 public: 41 FontData() 42 : m_maxGlyphPageTreeLevel(0) 43 { 44 } 45 46 virtual ~FontData(); 47 48 virtual const SimpleFontData* fontDataForCharacter(UChar32) const = 0; 49 virtual bool containsCharacters(const UChar*, int length) const = 0; 50 virtual bool isCustomFont() const = 0; 51 virtual bool isLoading() const = 0; 52 virtual bool isSegmented() const = 0; 53 54 void setMaxGlyphPageTreeLevel(unsigned level) const { m_maxGlyphPageTreeLevel = level; } 55 unsigned maxGlyphPageTreeLevel() const { return m_maxGlyphPageTreeLevel; } 56 57 #ifndef NDEBUG 58 virtual String description() const = 0; 59 #endif 60 61 private: 62 mutable unsigned m_maxGlyphPageTreeLevel; 63 }; 64 65 } // namespace WebCore 66 67 #endif // FontData_h 68
