1 /* 2 * Copyright (C) 2013 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 GenericFontFamilySettings_h 32 #define GenericFontFamilySettings_h 33 34 #include "platform/PlatformExport.h" 35 #include "wtf/HashMap.h" 36 #include "wtf/text/AtomicString.h" 37 #include "wtf/text/AtomicStringHash.h" 38 39 40 namespace WebCore { 41 42 class PLATFORM_EXPORT GenericFontFamilySettings { 43 WTF_MAKE_FAST_ALLOCATED; 44 45 public: 46 GenericFontFamilySettings() 47 { 48 } 49 50 explicit GenericFontFamilySettings(const GenericFontFamilySettings&); 51 52 void setStandard(const AtomicString&, UScriptCode = USCRIPT_COMMON); 53 const AtomicString& standard(UScriptCode = USCRIPT_COMMON) const; 54 55 void setFixed(const AtomicString&, UScriptCode = USCRIPT_COMMON); 56 const AtomicString& fixed(UScriptCode = USCRIPT_COMMON) const; 57 58 void setSerif(const AtomicString&, UScriptCode = USCRIPT_COMMON); 59 const AtomicString& serif(UScriptCode = USCRIPT_COMMON) const; 60 61 void setSansSerif(const AtomicString&, UScriptCode = USCRIPT_COMMON); 62 const AtomicString& sansSerif(UScriptCode = USCRIPT_COMMON) const; 63 64 void setCursive(const AtomicString&, UScriptCode = USCRIPT_COMMON); 65 const AtomicString& cursive(UScriptCode = USCRIPT_COMMON) const; 66 67 void setFantasy(const AtomicString&, UScriptCode = USCRIPT_COMMON); 68 const AtomicString& fantasy(UScriptCode = USCRIPT_COMMON) const; 69 70 void setPictograph(const AtomicString&, UScriptCode = USCRIPT_COMMON); 71 const AtomicString& pictograph(UScriptCode = USCRIPT_COMMON) const; 72 73 // Only called by InternalSettings to clear font family maps. 74 void reset(); 75 76 private: 77 GenericFontFamilySettings& operator=(const GenericFontFamilySettings&) WTF_DELETED_FUNCTION; 78 79 // UScriptCode uses -1 and 0 for UScriptInvalidCode and UScriptCommon. 80 // We need to use -2 and -3 for empty value and deleted value. 81 struct UScriptCodeHashTraits : WTF::GenericHashTraits<int> { 82 static const bool emptyValueIsZero = false; 83 static int emptyValue() { return -2; } 84 static void constructDeletedValue(int& slot) { slot = -3; } 85 static bool isDeletedValue(int value) { return value == -3; } 86 }; 87 88 typedef HashMap<int, AtomicString, DefaultHash<int>::Hash, UScriptCodeHashTraits> ScriptFontFamilyMap; 89 90 void setGenericFontFamilyMap(ScriptFontFamilyMap&, const AtomicString&, UScriptCode); 91 const AtomicString& genericFontFamilyForScript(const ScriptFontFamilyMap&, UScriptCode) const; 92 93 ScriptFontFamilyMap m_standardFontFamilyMap; 94 ScriptFontFamilyMap m_serifFontFamilyMap; 95 ScriptFontFamilyMap m_fixedFontFamilyMap; 96 ScriptFontFamilyMap m_sansSerifFontFamilyMap; 97 ScriptFontFamilyMap m_cursiveFontFamilyMap; 98 ScriptFontFamilyMap m_fantasyFontFamilyMap; 99 ScriptFontFamilyMap m_pictographFontFamilyMap; 100 }; 101 102 } 103 104 #endif 105
