94 lines
3.3 KiB
C++
94 lines
3.3 KiB
C++
/*
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* Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
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* Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
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* Copyright (C) 2018-2019 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "config.h"
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#include "SVGFEComponentTransferElement.h"
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#include "ElementIterator.h"
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#include "FilterEffect.h"
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#include "SVGFEFuncAElement.h"
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#include "SVGFEFuncBElement.h"
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#include "SVGFEFuncGElement.h"
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#include "SVGFEFuncRElement.h"
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#include "SVGFilterBuilder.h"
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#include "SVGNames.h"
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#include <wtf/IsoMallocInlines.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(SVGFEComponentTransferElement);
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inline SVGFEComponentTransferElement::SVGFEComponentTransferElement(const QualifiedName& tagName, Document& document)
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: SVGFilterPrimitiveStandardAttributes(tagName, document)
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{
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ASSERT(hasTagName(SVGNames::feComponentTransferTag));
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static std::once_flag onceFlag;
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std::call_once(onceFlag, [] {
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PropertyRegistry::registerProperty<SVGNames::inAttr, &SVGFEComponentTransferElement::m_in1>();
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});
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}
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Ref<SVGFEComponentTransferElement> SVGFEComponentTransferElement::create(const QualifiedName& tagName, Document& document)
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{
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return adoptRef(*new SVGFEComponentTransferElement(tagName, document));
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}
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void SVGFEComponentTransferElement::parseAttribute(const QualifiedName& name, const AtomString& value)
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{
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if (name == SVGNames::inAttr) {
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m_in1->setBaseValInternal(value);
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return;
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}
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SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
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}
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RefPtr<FilterEffect> SVGFEComponentTransferElement::build(SVGFilterBuilder* filterBuilder, Filter& filter) const
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{
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auto input1 = filterBuilder->getEffectById(in1());
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if (!input1)
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return nullptr;
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ComponentTransferFunction red;
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ComponentTransferFunction green;
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ComponentTransferFunction blue;
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ComponentTransferFunction alpha;
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for (auto& child : childrenOfType<SVGElement>(*this)) {
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if (is<SVGFEFuncRElement>(child))
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red = downcast<SVGFEFuncRElement>(child).transferFunction();
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else if (is<SVGFEFuncGElement>(child))
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green = downcast<SVGFEFuncGElement>(child).transferFunction();
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else if (is<SVGFEFuncBElement>(child))
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blue = downcast<SVGFEFuncBElement>(child).transferFunction();
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else if (is<SVGFEFuncAElement>(child))
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alpha = downcast<SVGFEFuncAElement>(child).transferFunction();
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}
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auto effect = FEComponentTransfer::create(filter, red, green, blue, alpha);
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effect->inputEffects() = { input1 };
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return effect;
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}
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}
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