mirror of
https://github.com/darlinghq/darling-WebCore.git
synced 2024-11-23 12:29:39 +00:00
114 lines
3.9 KiB
C++
114 lines
3.9 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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* 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 "SVGFEGaussianBlurElement.h"
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#include "FilterEffect.h"
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#include "SVGFilterBuilder.h"
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#include "SVGNames.h"
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#include "SVGParserUtilities.h"
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#include <wtf/IsoMallocInlines.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(SVGFEGaussianBlurElement);
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inline SVGFEGaussianBlurElement::SVGFEGaussianBlurElement(const QualifiedName& tagName, Document& document)
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: SVGFilterPrimitiveStandardAttributes(tagName, document)
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{
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ASSERT(hasTagName(SVGNames::feGaussianBlurTag));
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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, &SVGFEGaussianBlurElement::m_in1>();
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PropertyRegistry::registerProperty<SVGNames::stdDeviationAttr, &SVGFEGaussianBlurElement::m_stdDeviationX, &SVGFEGaussianBlurElement::m_stdDeviationY>();
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PropertyRegistry::registerProperty<SVGNames::edgeModeAttr, EdgeModeType, &SVGFEGaussianBlurElement::m_edgeMode>();
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});
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}
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Ref<SVGFEGaussianBlurElement> SVGFEGaussianBlurElement::create(const QualifiedName& tagName, Document& document)
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{
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return adoptRef(*new SVGFEGaussianBlurElement(tagName, document));
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}
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void SVGFEGaussianBlurElement::setStdDeviation(float x, float y)
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{
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m_stdDeviationX->setBaseValInternal(x);
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m_stdDeviationY->setBaseValInternal(y);
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invalidate();
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}
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void SVGFEGaussianBlurElement::parseAttribute(const QualifiedName& name, const AtomString& value)
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{
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if (name == SVGNames::stdDeviationAttr) {
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if (auto result = parseNumberOptionalNumber(value)) {
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m_stdDeviationX->setBaseValInternal(result->first);
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m_stdDeviationY->setBaseValInternal(result->second);
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}
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return;
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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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if (name == SVGNames::edgeModeAttr) {
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auto propertyValue = SVGPropertyTraits<EdgeModeType>::fromString(value);
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if (propertyValue > 0)
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m_edgeMode->setBaseValInternal<EdgeModeType>(propertyValue);
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else
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document().accessSVGExtensions().reportWarning("feGaussianBlur: problem parsing edgeMode=\"" + value + "\". Filtered element will not be displayed.");
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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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void SVGFEGaussianBlurElement::svgAttributeChanged(const QualifiedName& attrName)
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{
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if (PropertyRegistry::isKnownAttribute(attrName)) {
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InstanceInvalidationGuard guard(*this);
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invalidate();
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return;
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}
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SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
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}
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RefPtr<FilterEffect> SVGFEGaussianBlurElement::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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if (stdDeviationX() < 0 || stdDeviationY() < 0)
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return nullptr;
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auto effect = FEGaussianBlur::create(filter, stdDeviationX(), stdDeviationY(), edgeMode());
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effect->inputEffects().append(input1);
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return effect;
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}
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}
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