| /* |
| * Copyright (C) Research In Motion Limited 2011. 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 "core/svg/SVGFEDropShadowElement.h" |
| |
| #include "core/SVGNames.h" |
| #include "core/rendering/style/RenderStyle.h" |
| #include "core/rendering/style/SVGRenderStyle.h" |
| #include "core/svg/SVGParserUtilities.h" |
| #include "core/svg/graphics/filters/SVGFilterBuilder.h" |
| |
| namespace blink { |
| |
| inline SVGFEDropShadowElement::SVGFEDropShadowElement(Document& document) |
| : SVGFilterPrimitiveStandardAttributes(SVGNames::feDropShadowTag, document) |
| , m_dx(SVGAnimatedNumber::create(this, SVGNames::dxAttr, SVGNumber::create(2))) |
| , m_dy(SVGAnimatedNumber::create(this, SVGNames::dyAttr, SVGNumber::create(2))) |
| , m_stdDeviation(SVGAnimatedNumberOptionalNumber::create(this, SVGNames::stdDeviationAttr, 2, 2)) |
| , m_in1(SVGAnimatedString::create(this, SVGNames::inAttr, SVGString::create())) |
| { |
| ScriptWrappable::init(this); |
| |
| addToPropertyMap(m_dx); |
| addToPropertyMap(m_dy); |
| addToPropertyMap(m_stdDeviation); |
| addToPropertyMap(m_in1); |
| } |
| |
| DEFINE_NODE_FACTORY(SVGFEDropShadowElement) |
| |
| void SVGFEDropShadowElement::setStdDeviation(float x, float y) |
| { |
| stdDeviationX()->baseValue()->setValue(x); |
| stdDeviationY()->baseValue()->setValue(y); |
| invalidate(); |
| } |
| |
| bool SVGFEDropShadowElement::isSupportedAttribute(const QualifiedName& attrName) |
| { |
| DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ()); |
| if (supportedAttributes.isEmpty()) { |
| supportedAttributes.add(SVGNames::inAttr); |
| supportedAttributes.add(SVGNames::dxAttr); |
| supportedAttributes.add(SVGNames::dyAttr); |
| supportedAttributes.add(SVGNames::stdDeviationAttr); |
| } |
| return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName); |
| } |
| |
| void SVGFEDropShadowElement::parseAttribute(const QualifiedName& name, const AtomicString& value) |
| { |
| if (!isSupportedAttribute(name)) { |
| SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value); |
| return; |
| } |
| |
| SVGParsingError parseError = NoError; |
| |
| if (name == SVGNames::inAttr) |
| m_in1->setBaseValueAsString(value, parseError); |
| else if (name == SVGNames::dxAttr) |
| m_dx->setBaseValueAsString(value, parseError); |
| else if (name == SVGNames::dyAttr) |
| m_dy->setBaseValueAsString(value, parseError); |
| else if (name == SVGNames::stdDeviationAttr) |
| m_stdDeviation->setBaseValueAsString(value, parseError); |
| else |
| ASSERT_NOT_REACHED(); |
| |
| reportAttributeParsingError(parseError, name, value); |
| } |
| |
| void SVGFEDropShadowElement::svgAttributeChanged(const QualifiedName& attrName) |
| { |
| if (!isSupportedAttribute(attrName)) { |
| SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName); |
| return; |
| } |
| |
| SVGElement::InvalidationGuard invalidationGuard(this); |
| |
| if (attrName == SVGNames::inAttr |
| || attrName == SVGNames::stdDeviationAttr |
| || attrName == SVGNames::dxAttr |
| || attrName == SVGNames::dyAttr) { |
| invalidate(); |
| return; |
| } |
| |
| ASSERT_NOT_REACHED(); |
| } |
| |
| PassRefPtr<FilterEffect> SVGFEDropShadowElement::build(SVGFilterBuilder* filterBuilder, Filter* filter) |
| { |
| RenderObject* renderer = this->renderer(); |
| if (!renderer) |
| return nullptr; |
| |
| if (stdDeviationX()->currentValue()->value() < 0 || stdDeviationY()->currentValue()->value() < 0) |
| return nullptr; |
| |
| ASSERT(renderer->style()); |
| const SVGRenderStyle& svgStyle = renderer->style()->svgStyle(); |
| |
| Color color = svgStyle.floodColor(); |
| float opacity = svgStyle.floodOpacity(); |
| |
| FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value())); |
| if (!input1) |
| return nullptr; |
| |
| RefPtr<FilterEffect> effect = FEDropShadow::create(filter, stdDeviationX()->currentValue()->value(), stdDeviationY()->currentValue()->value(), m_dx->currentValue()->value(), m_dy->currentValue()->value(), color, opacity); |
| effect->inputEffects().append(input1); |
| return effect.release(); |
| } |
| |
| } |