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