1/* 2 * Copyright (C) 2007 Nicholas Shanks <contact@nickshanks.com> 3 * Copyright (C) 2008, 2013 Apple Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 15 * its contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30#include "config.h" 31#include "FontDescription.h" 32 33namespace WebCore { 34 35struct SameSizeAsFontDescription { 36 Vector<AtomicString, 1> families; 37 RefPtr<FontFeatureSettings> m_featureSettings; 38 float sizes[2]; 39 // FXIME: Make them fit into one word. 40 uint32_t bitfields; 41 uint32_t bitfields2 : 8; 42}; 43 44COMPILE_ASSERT(sizeof(FontDescription) == sizeof(SameSizeAsFontDescription), FontDescription_should_stay_small); 45 46FontWeight FontDescription::lighterWeight(void) const 47{ 48 // FIXME: Should actually return the CSS weight corresponding to next lightest 49 // weight of the currently used font family. 50 switch (m_weight) { 51 case FontWeight100: 52 case FontWeight200: 53 return FontWeight100; 54 55 case FontWeight300: 56 return FontWeight200; 57 58 case FontWeight400: 59 case FontWeight500: 60 return FontWeight300; 61 62 case FontWeight600: 63 case FontWeight700: 64 return FontWeight400; 65 66 case FontWeight800: 67 return FontWeight500; 68 69 case FontWeight900: 70 return FontWeight700; 71 } 72 ASSERT_NOT_REACHED(); 73 return FontWeightNormal; 74} 75 76FontWeight FontDescription::bolderWeight(void) const 77{ 78 // FIXME: Should actually return the CSS weight corresponding to next heaviest 79 // weight of the currently used font family. 80 switch (m_weight) { 81 case FontWeight100: 82 case FontWeight200: 83 return FontWeight300; 84 85 case FontWeight300: 86 return FontWeight400; 87 88 case FontWeight400: 89 case FontWeight500: 90 return FontWeight700; 91 92 case FontWeight600: 93 case FontWeight700: 94 return FontWeight800; 95 96 case FontWeight800: 97 case FontWeight900: 98 return FontWeight900; 99 } 100 ASSERT_NOT_REACHED(); 101 return FontWeightNormal; 102} 103 104FontTraitsMask FontDescription::traitsMask() const 105{ 106 return static_cast<FontTraitsMask>((m_italic ? FontStyleItalicMask : FontStyleNormalMask) 107 | (m_smallCaps ? FontVariantSmallCapsMask : FontVariantNormalMask) 108 | (FontWeight100Mask << (m_weight - FontWeight100))); 109 110} 111 112FontDescription FontDescription::makeNormalFeatureSettings() const 113{ 114 FontDescription normalDescription(*this); 115 normalDescription.setFeatureSettings(0); 116 return normalDescription; 117} 118 119} // namespace WebCore 120