1 /* 2 * Copyright (c) 2010, Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef FontTranscoder_h 32 #define FontTranscoder_h 33 34 #include "wtf/HashMap.h" 35 #include "wtf/Noncopyable.h" 36 #include "wtf/text/AtomicStringHash.h" 37 38 namespace WTF{ 39 class TextEncoding; 40 } 41 42 namespace WebCore { 43 44 class FontDescription; 45 46 class FontTranscoder { 47 WTF_MAKE_NONCOPYABLE(FontTranscoder); WTF_MAKE_FAST_ALLOCATED; 48 public: 49 void convert(String& text, const FontDescription&, const WTF::TextEncoding* = 0) const; 50 bool needsTranscoding(const FontDescription&, const WTF::TextEncoding* = 0) const; 51 52 private: 53 FontTranscoder(); 54 ~FontTranscoder(); // Not implemented to make sure nobody accidentally calls delete -- WebCore does not delete singletons. 55 56 enum ConverterType { 57 NoConversion, BackslashToYenSign, 58 }; 59 60 ConverterType converterType(const FontDescription&, const WTF::TextEncoding*) const; 61 62 HashMap<AtomicString, ConverterType> m_converterTypes; 63 64 friend FontTranscoder& fontTranscoder(); 65 }; 66 67 FontTranscoder& fontTranscoder(); 68 69 } // namespace WebCore 70 71 #endif // FontTranscoder_h 72
