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/*
* Copyright (C) 2007 Nicholas Shanks <contact@nickshanks.com>
* Copyright (C) 2008, 2013 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "FontDescription.h"
namespace WebCore {
struct SameSizeAsFontDescription {
void* pointers[2];
float sizes[2];
// FXIME: Make them fit into one word.
uint32_t bitfields;
uint32_t bitfields2 : 8;
};
COMPILE_ASSERT(sizeof(FontDescription) == sizeof(SameSizeAsFontDescription), FontDescription_should_stay_small);
FontWeight FontDescription::lighterWeight(void) const
{
// FIXME: Should actually return the CSS weight corresponding to next lightest
// weight of the currently used font family.
switch (m_weight) {
case FontWeight100:
case FontWeight200:
return FontWeight100;
case FontWeight300:
return FontWeight200;
case FontWeight400:
case FontWeight500:
return FontWeight300;
case FontWeight600:
case FontWeight700:
return FontWeight400;
case FontWeight800:
return FontWeight500;
case FontWeight900:
return FontWeight700;
}
ASSERT_NOT_REACHED();
return FontWeightNormal;
}
FontWeight FontDescription::bolderWeight(void) const
{
// FIXME: Should actually return the CSS weight corresponding to next heaviest
// weight of the currently used font family.
switch (m_weight) {
case FontWeight100:
case FontWeight200:
return FontWeight300;
case FontWeight300:
return FontWeight400;
case FontWeight400:
case FontWeight500:
return FontWeight700;
case FontWeight600:
case FontWeight700:
return FontWeight800;
case FontWeight800:
case FontWeight900:
return FontWeight900;
}
ASSERT_NOT_REACHED();
return FontWeightNormal;
}
FontTraitsMask FontDescription::traitsMask() const
{
return static_cast<FontTraitsMask>((m_italic ? FontStyleItalicMask : FontStyleNormalMask)
| (m_smallCaps ? FontVariantSmallCapsMask : FontVariantNormalMask)
| (FontWeight100Mask << (m_weight - FontWeight100)));
}
FontDescription FontDescription::makeNormalFeatureSettings() const
{
FontDescription normalDescription(*this);
normalDescription.setFeatureSettings(0);
return normalDescription;
}
#if ENABLE(IOS_TEXT_AUTOSIZING)
bool FontDescription::familiesEqualForTextAutoSizing(const FontDescription& other) const
{
unsigned thisFamilyCount = familyCount();
unsigned otherFamilyCount = other.familyCount();
if (thisFamilyCount != otherFamilyCount)
return false;
for (unsigned i = 0; i < thisFamilyCount; ++i) {
if (!equalIgnoringCase(familyAt(i), other.familyAt(i)))
return false;
}
return true;
}
#endif // ENABLE(IOS_TEXT_AUTOSIZING)
} // namespace WebCore
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