1 /* 2 Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) 3 Copyright (C) 2008 Holger Hans Peter Freyther 4 Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/ 5 6 This library is free software; you can redistribute it and/or 7 modify it under the terms of the GNU Library General Public 8 License as published by the Free Software Foundation; either 9 version 2 of the License, or (at your option) any later version. 10 11 This library is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 Library General Public License for more details. 15 16 You should have received a copy of the GNU Library General Public License 17 along with this library; see the file COPYING.LIB. If not, write to 18 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 Boston, MA 02110-1301, USA. 20 21 This class provides all functionality needed for loading images, style sheets and html 22 pages from the web. It has a memory cache for these objects. 23 */ 24 #ifndef FontPlatformData_h 25 #define FontPlatformData_h 26 27 #include "FontDescription.h" 28 #include "FontOrientation.h" 29 #include <QFont> 30 #include <QHash> 31 #include <wtf/Forward.h> 32 #include <wtf/RefCounted.h> 33 34 namespace WebCore { 35 36 class FontPlatformDataPrivate : public RefCounted<FontPlatformDataPrivate> { 37 WTF_MAKE_NONCOPYABLE(FontPlatformDataPrivate); WTF_MAKE_FAST_ALLOCATED; 38 public: 39 FontPlatformDataPrivate() 40 : size(font.pixelSize()) 41 , bold(font.bold()) 42 , oblique(false) 43 , isDeletedValue(false) 44 { } 45 FontPlatformDataPrivate(const float size, const bool bold, const bool oblique) 46 : size(size) 47 , bold(bold) 48 , oblique(oblique) 49 , isDeletedValue(false) 50 { } 51 FontPlatformDataPrivate(const QFont& font) 52 : font(font) 53 , size(font.pixelSize()) 54 , bold(font.bold()) 55 , oblique(false) 56 , isDeletedValue(false) 57 { } 58 FontPlatformDataPrivate(WTF::HashTableDeletedValueType) 59 : isDeletedValue(true) 60 { } 61 62 QFont font; 63 float size; 64 bool bold : 1; 65 bool oblique : 1; 66 bool isDeletedValue : 1; 67 }; 68 69 class FontPlatformData { 70 WTF_MAKE_FAST_ALLOCATED; 71 public: 72 FontPlatformData(float size, bool bold, bool oblique); 73 FontPlatformData(const FontDescription&, const AtomicString& familyName, int wordSpacing = 0, int letterSpacing = 0); 74 FontPlatformData(const QFont& font) 75 : m_data(adoptRef(new FontPlatformDataPrivate(font))) 76 { } 77 FontPlatformData(WTF::HashTableDeletedValueType) 78 : m_data(adoptRef(new FontPlatformDataPrivate())) 79 { 80 m_data->isDeletedValue = true; 81 } 82 83 bool operator==(const FontPlatformData&) const; 84 85 bool isHashTableDeletedValue() const 86 { 87 return m_data && m_data->isDeletedValue; 88 } 89 90 QFont font() const 91 { 92 Q_ASSERT(!isHashTableDeletedValue()); 93 if (!m_data) 94 return QFont(); 95 return m_data->font; 96 } 97 float size() const 98 { 99 Q_ASSERT(!isHashTableDeletedValue()); 100 if (!m_data) 101 return 0; 102 return m_data->size; 103 } 104 QString family() const 105 { 106 Q_ASSERT(!isHashTableDeletedValue()); 107 if (!m_data) 108 return QString(); 109 return m_data->font.family(); 110 } 111 bool bold() const 112 { 113 Q_ASSERT(!isHashTableDeletedValue()); 114 if (!m_data) 115 return false; 116 return m_data->bold; 117 } 118 bool italic() const 119 { 120 Q_ASSERT(!isHashTableDeletedValue()); 121 if (!m_data) 122 return false; 123 return m_data->font.italic(); 124 } 125 bool smallCaps() const 126 { 127 Q_ASSERT(!isHashTableDeletedValue()); 128 if (!m_data) 129 return false; 130 return m_data->font.capitalization() == QFont::SmallCaps; 131 } 132 int pixelSize() const 133 { 134 Q_ASSERT(!isHashTableDeletedValue()); 135 if (!m_data) 136 return 0; 137 // WebCore allows a font size of zero, but QFont does not. 138 if (!m_data->size) 139 return 0; 140 return m_data->font.pixelSize(); 141 } 142 143 FontOrientation orientation() const { return Horizontal; } // FIXME: Implement. 144 void setOrientation(FontOrientation) { } // FIXME: Implement. 145 146 unsigned hash() const; 147 148 #ifndef NDEBUG 149 String description() const; 150 #endif 151 private: 152 RefPtr<FontPlatformDataPrivate> m_data; 153 }; 154 155 } // namespace WebCore 156 157 #endif // FontPlatformData_h 158
