132 lines
4.3 KiB
C++
132 lines
4.3 KiB
C++
/*
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* Copyright (C) 2007 Nicholas Shanks <contact@nickshanks.com>
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* Copyright (C) 2008, 2013 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "FontCascadeDescription.h"
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#include <wtf/text/StringHash.h>
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namespace WebCore {
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struct SameSizeAsFontCascadeDescription {
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Vector<void*> vector;
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Vector<void*> vector2;
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AtomString string;
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AtomString string2;
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int16_t fontSelectionRequest[3];
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float size;
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unsigned bitfields1;
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unsigned bitfields2 : 22;
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void* array;
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float size2;
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unsigned bitfields3 : 10;
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};
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COMPILE_ASSERT(sizeof(FontCascadeDescription) == sizeof(SameSizeAsFontCascadeDescription), FontCascadeDescription_should_stay_small);
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FontCascadeDescription::FontCascadeDescription()
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: m_isAbsoluteSize(false)
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, m_kerning(static_cast<unsigned>(Kerning::Auto))
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, m_keywordSize(0)
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, m_fontSmoothing(static_cast<unsigned>(FontSmoothingMode::AutoSmoothing))
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, m_isSpecifiedFont(false)
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{
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}
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FontSelectionValue FontCascadeDescription::lighterWeight(FontSelectionValue weight)
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{
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if (weight < FontSelectionValue(100))
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return weight;
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if (weight < FontSelectionValue(550))
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return FontSelectionValue(100);
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if (weight < FontSelectionValue(750))
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return FontSelectionValue(400);
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return FontSelectionValue(700);
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}
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FontSelectionValue FontCascadeDescription::bolderWeight(FontSelectionValue weight)
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{
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if (weight < FontSelectionValue(350))
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return FontSelectionValue(400);
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if (weight < FontSelectionValue(550))
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return FontSelectionValue(700);
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if (weight < FontSelectionValue(900))
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return FontSelectionValue(900);
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return weight;
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}
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#if ENABLE(TEXT_AUTOSIZING)
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bool FontCascadeDescription::familiesEqualForTextAutoSizing(const FontCascadeDescription& other) const
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{
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unsigned thisFamilyCount = familyCount();
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unsigned otherFamilyCount = other.familyCount();
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if (thisFamilyCount != otherFamilyCount)
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return false;
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for (unsigned i = 0; i < thisFamilyCount; ++i) {
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if (!familyNamesAreEqual(familyAt(i), other.familyAt(i)))
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return false;
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}
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return true;
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}
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#endif // ENABLE(TEXT_AUTOSIZING)
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bool FontCascadeDescription::familyNamesAreEqual(const AtomString& family1, const AtomString& family2)
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{
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#if PLATFORM(COCOA)
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if (family1.startsWith('.'))
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return family1 == family2;
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#endif
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return ASCIICaseInsensitiveHash::equal(family1, family2);
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}
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unsigned FontCascadeDescription::familyNameHash(const AtomString& family)
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{
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#if PLATFORM(COCOA)
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if (family.startsWith('.'))
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return family.existingHash();
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#endif
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return ASCIICaseInsensitiveHash::hash(family);
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}
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String FontCascadeDescription::foldedFamilyName(const String& family)
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{
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#if PLATFORM(COCOA)
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if (family.startsWith('.'))
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return family;
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#endif
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return family.convertToASCIILowercase();
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}
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} // namespace WebCore
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