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/*
* Copyright (C) 2007 Eric Seidel <eric@webkit.org>
* Copyright (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2008 Eric Seidel <eric@webkit.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "SVGHKernElement.h"
#include "SVGElementInlines.h"
#include "SVGFontElement.h"
#include "SVGFontFaceElement.h"
#include "SVGNames.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(SVGHKernElement);
inline SVGHKernElement::SVGHKernElement(const QualifiedName& tagName, Document& document)
: SVGElement(tagName, document, makeUniqueRef<PropertyRegistry>(*this))
{
ASSERT(hasTagName(SVGNames::hkernTag));
}
Ref<SVGHKernElement> SVGHKernElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGHKernElement(tagName, document));
}
std::optional<SVGKerningPair> SVGHKernElement::buildHorizontalKerningPair() const
{
// FIXME: Can this be shared with SVGVKernElement::buildVerticalKerningPair?
auto& u1 = attributeWithoutSynchronization(SVGNames::u1Attr);
auto& g1 = attributeWithoutSynchronization(SVGNames::g1Attr);
if (u1.isEmpty() && g1.isEmpty())
return std::nullopt;
auto& u2 = attributeWithoutSynchronization(SVGNames::u2Attr);
auto& g2 = attributeWithoutSynchronization(SVGNames::g2Attr);
if (u2.isEmpty() && g2.isEmpty())
return std::nullopt;
auto glyphName1 = parseGlyphName(g1);
if (!glyphName1)
return std::nullopt;
auto glyphName2 = parseGlyphName(g2);
if (!glyphName2)
return std::nullopt;
auto unicodeString1 = parseKerningUnicodeString(u1);
if (!unicodeString1)
return std::nullopt;
auto unicodeString2 = parseKerningUnicodeString(u2);
if (!unicodeString2)
return std::nullopt;
bool ok = false;
auto kerning = attributeWithoutSynchronization(SVGNames::kAttr).string().toFloat(&ok);
if (!ok)
return std::nullopt;
return SVGKerningPair {
WTFMove(unicodeString1->first),
WTFMove(unicodeString1->second),
WTFMove(*glyphName1),
WTFMove(unicodeString2->first),
WTFMove(unicodeString2->second),
WTFMove(*glyphName2),
kerning
};
}
}
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