68 lines
2.1 KiB
C++
68 lines
2.1 KiB
C++
/*
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* Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
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* Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
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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 "SVGFEMergeElement.h"
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#include "ElementIterator.h"
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#include "FEMerge.h"
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#include "FilterEffect.h"
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#include "SVGFEMergeNodeElement.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(SVGFEMergeElement);
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inline SVGFEMergeElement::SVGFEMergeElement(const QualifiedName& tagName, Document& document)
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: SVGFilterPrimitiveStandardAttributes(tagName, document)
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{
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ASSERT(hasTagName(SVGNames::feMergeTag));
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}
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Ref<SVGFEMergeElement> SVGFEMergeElement::create(const QualifiedName& tagName, Document& document)
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{
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return adoptRef(*new SVGFEMergeElement(tagName, document));
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}
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RefPtr<FilterEffect> SVGFEMergeElement::build(SVGFilterBuilder* filterBuilder, Filter& filter) const
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{
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auto effect = FEMerge::create(filter);
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auto& mergeInputs = effect->inputEffects();
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for (auto& mergeNode : childrenOfType<SVGFEMergeNodeElement>(*this)) {
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auto mergeEffect = filterBuilder->getEffectById(mergeNode.in1());
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if (!mergeEffect)
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return nullptr;
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mergeInputs.append(WTFMove(mergeEffect));
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}
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mergeInputs.shrinkToFit();
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if (mergeInputs.isEmpty())
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return nullptr;
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return effect;
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}
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}
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