| /* |
| * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org> |
| * Copyright (C) 2018-2019 Apple Inc. All rights reserved. |
| * |
| * 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 "SVGFEColorMatrixElement.h" |
| |
| #include "FilterEffect.h" |
| #include "SVGFilterBuilder.h" |
| #include "SVGNames.h" |
| #include <wtf/IsoMallocInlines.h> |
| |
| namespace WebCore { |
| |
| WTF_MAKE_ISO_ALLOCATED_IMPL(SVGFEColorMatrixElement); |
| |
| inline SVGFEColorMatrixElement::SVGFEColorMatrixElement(const QualifiedName& tagName, Document& document) |
| : SVGFilterPrimitiveStandardAttributes(tagName, document) |
| { |
| ASSERT(hasTagName(SVGNames::feColorMatrixTag)); |
| |
| static std::once_flag onceFlag; |
| std::call_once(onceFlag, [] { |
| PropertyRegistry::registerProperty<SVGNames::inAttr, &SVGFEColorMatrixElement::m_in1>(); |
| PropertyRegistry::registerProperty<SVGNames::typeAttr, ColorMatrixType, &SVGFEColorMatrixElement::m_type>(); |
| PropertyRegistry::registerProperty<SVGNames::valuesAttr, &SVGFEColorMatrixElement::m_values>(); |
| }); |
| } |
| |
| Ref<SVGFEColorMatrixElement> SVGFEColorMatrixElement::create(const QualifiedName& tagName, Document& document) |
| { |
| return adoptRef(*new SVGFEColorMatrixElement(tagName, document)); |
| } |
| |
| void SVGFEColorMatrixElement::parseAttribute(const QualifiedName& name, const AtomString& value) |
| { |
| if (name == SVGNames::typeAttr) { |
| auto propertyValue = SVGPropertyTraits<ColorMatrixType>::fromString(value); |
| if (propertyValue > 0) |
| m_type->setBaseValInternal<ColorMatrixType>(propertyValue); |
| return; |
| } |
| |
| if (name == SVGNames::inAttr) { |
| m_in1->setBaseValInternal(value); |
| return; |
| } |
| |
| if (name == SVGNames::valuesAttr) { |
| m_values->baseVal()->parse(value); |
| return; |
| } |
| |
| SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value); |
| } |
| |
| bool SVGFEColorMatrixElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName) |
| { |
| FEColorMatrix* colorMatrix = static_cast<FEColorMatrix*>(effect); |
| if (attrName == SVGNames::typeAttr) |
| return colorMatrix->setType(type()); |
| if (attrName == SVGNames::valuesAttr) |
| return colorMatrix->setValues(values()); |
| |
| ASSERT_NOT_REACHED(); |
| return false; |
| } |
| |
| void SVGFEColorMatrixElement::svgAttributeChanged(const QualifiedName& attrName) |
| { |
| if (attrName == SVGNames::typeAttr || attrName == SVGNames::valuesAttr) { |
| InstanceInvalidationGuard guard(*this); |
| primitiveAttributeChanged(attrName); |
| return; |
| } |
| |
| if (attrName == SVGNames::inAttr) { |
| InstanceInvalidationGuard guard(*this); |
| invalidate(); |
| return; |
| } |
| |
| SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName); |
| } |
| |
| RefPtr<FilterEffect> SVGFEColorMatrixElement::build(SVGFilterBuilder* filterBuilder, Filter& filter) const |
| { |
| auto input1 = filterBuilder->getEffectById(in1()); |
| |
| if (!input1) |
| return nullptr; |
| |
| Vector<float> filterValues; |
| ColorMatrixType filterType = type(); |
| |
| // Use defaults if values is empty (SVG 1.1 15.10). |
| if (!hasAttribute(SVGNames::valuesAttr)) { |
| switch (filterType) { |
| case FECOLORMATRIX_TYPE_MATRIX: |
| for (size_t i = 0; i < 20; i++) |
| filterValues.append((i % 6) ? 0 : 1); |
| break; |
| case FECOLORMATRIX_TYPE_HUEROTATE: |
| filterValues.append(0); |
| break; |
| case FECOLORMATRIX_TYPE_SATURATE: |
| filterValues.append(1); |
| break; |
| default: |
| break; |
| } |
| } else { |
| unsigned size = values().size(); |
| |
| if ((filterType == FECOLORMATRIX_TYPE_MATRIX && size != 20) |
| || (filterType == FECOLORMATRIX_TYPE_HUEROTATE && size != 1) |
| || (filterType == FECOLORMATRIX_TYPE_SATURATE && size != 1)) |
| return nullptr; |
| |
| filterValues = values(); |
| } |
| |
| auto effect = FEColorMatrix::create(filter, filterType, filterValues); |
| effect->inputEffects().append(input1); |
| return effect; |
| } |
| |
| } // namespace WebCore |