| /* |
| * Copyright (C) 2005 Oliver Hunt <ojh16@student.canterbury.ac.nz> |
| * |
| * 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 "core/svg/SVGFEDiffuseLightingElement.h" |
| |
| #include "core/layout/LayoutObject.h" |
| #include "core/style/ComputedStyle.h" |
| #include "core/svg/graphics/filters/SVGFilterBuilder.h" |
| #include "platform/graphics/filters/FEDiffuseLighting.h" |
| #include "platform/graphics/filters/Filter.h" |
| |
| namespace blink { |
| |
| inline SVGFEDiffuseLightingElement::SVGFEDiffuseLightingElement(Document& document) |
| : SVGFilterPrimitiveStandardAttributes(SVGNames::feDiffuseLightingTag, document) |
| , m_diffuseConstant(SVGAnimatedNumber::create(this, SVGNames::diffuseConstantAttr, SVGNumber::create(1))) |
| , m_surfaceScale(SVGAnimatedNumber::create(this, SVGNames::surfaceScaleAttr, SVGNumber::create(1))) |
| , m_kernelUnitLength(SVGAnimatedNumberOptionalNumber::create(this, SVGNames::kernelUnitLengthAttr)) |
| , m_in1(SVGAnimatedString::create(this, SVGNames::inAttr, SVGString::create())) |
| { |
| addToPropertyMap(m_diffuseConstant); |
| addToPropertyMap(m_surfaceScale); |
| addToPropertyMap(m_kernelUnitLength); |
| addToPropertyMap(m_in1); |
| } |
| |
| DEFINE_TRACE(SVGFEDiffuseLightingElement) |
| { |
| visitor->trace(m_diffuseConstant); |
| visitor->trace(m_surfaceScale); |
| visitor->trace(m_kernelUnitLength); |
| visitor->trace(m_in1); |
| SVGFilterPrimitiveStandardAttributes::trace(visitor); |
| } |
| |
| DEFINE_NODE_FACTORY(SVGFEDiffuseLightingElement) |
| |
| bool SVGFEDiffuseLightingElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName) |
| { |
| FEDiffuseLighting* diffuseLighting = static_cast<FEDiffuseLighting*>(effect); |
| |
| if (attrName == SVGNames::lighting_colorAttr) { |
| LayoutObject* layoutObject = this->layoutObject(); |
| ASSERT(layoutObject); |
| ASSERT(layoutObject->style()); |
| return diffuseLighting->setLightingColor(layoutObject->style()->svgStyle().lightingColor()); |
| } |
| if (attrName == SVGNames::surfaceScaleAttr) |
| return diffuseLighting->setSurfaceScale(m_surfaceScale->currentValue()->value()); |
| if (attrName == SVGNames::diffuseConstantAttr) |
| return diffuseLighting->setDiffuseConstant(m_diffuseConstant->currentValue()->value()); |
| |
| LightSource* lightSource = const_cast<LightSource*>(diffuseLighting->lightSource()); |
| const SVGFELightElement* lightElement = SVGFELightElement::findLightElement(*this); |
| ASSERT(lightSource); |
| ASSERT(lightElement); |
| ASSERT(effect->getFilter()); |
| |
| if (attrName == SVGNames::azimuthAttr) |
| return lightSource->setAzimuth(lightElement->azimuth()->currentValue()->value()); |
| if (attrName == SVGNames::elevationAttr) |
| return lightSource->setElevation(lightElement->elevation()->currentValue()->value()); |
| if (attrName == SVGNames::xAttr || attrName == SVGNames::yAttr || attrName == SVGNames::zAttr) |
| return lightSource->setPosition(effect->getFilter()->resolve3dPoint(lightElement->position())); |
| if (attrName == SVGNames::pointsAtXAttr || attrName == SVGNames::pointsAtYAttr || attrName == SVGNames::pointsAtZAttr) |
| return lightSource->setPointsAt(effect->getFilter()->resolve3dPoint(lightElement->pointsAt())); |
| if (attrName == SVGNames::specularExponentAttr) |
| return lightSource->setSpecularExponent(lightElement->specularExponent()->currentValue()->value()); |
| if (attrName == SVGNames::limitingConeAngleAttr) |
| return lightSource->setLimitingConeAngle(lightElement->limitingConeAngle()->currentValue()->value()); |
| |
| return SVGFilterPrimitiveStandardAttributes::setFilterEffectAttribute(effect, attrName); |
| } |
| |
| void SVGFEDiffuseLightingElement::svgAttributeChanged(const QualifiedName& attrName) |
| { |
| if (attrName == SVGNames::surfaceScaleAttr |
| || attrName == SVGNames::diffuseConstantAttr |
| || attrName == SVGNames::lighting_colorAttr) { |
| SVGElement::InvalidationGuard invalidationGuard(this); |
| primitiveAttributeChanged(attrName); |
| return; |
| } |
| |
| if (attrName == SVGNames::inAttr) { |
| SVGElement::InvalidationGuard invalidationGuard(this); |
| invalidate(); |
| return; |
| } |
| |
| SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName); |
| } |
| |
| void SVGFEDiffuseLightingElement::lightElementAttributeChanged(const SVGFELightElement* lightElement, const QualifiedName& attrName) |
| { |
| if (SVGFELightElement::findLightElement(*this) != lightElement) |
| return; |
| |
| // The light element has different attribute names. |
| primitiveAttributeChanged(attrName); |
| } |
| |
| FilterEffect* SVGFEDiffuseLightingElement::build(SVGFilterBuilder* filterBuilder, Filter* filter) |
| { |
| FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value())); |
| ASSERT(input1); |
| |
| LayoutObject* layoutObject = this->layoutObject(); |
| if (!layoutObject) |
| return nullptr; |
| |
| ASSERT(layoutObject->style()); |
| Color color = layoutObject->style()->svgStyle().lightingColor(); |
| |
| const SVGFELightElement* lightNode = SVGFELightElement::findLightElement(*this); |
| RefPtr<LightSource> lightSource = lightNode ? lightNode->lightSource(filter) : nullptr; |
| |
| FilterEffect* effect = FEDiffuseLighting::create(filter, |
| color, |
| m_surfaceScale->currentValue()->value(), |
| m_diffuseConstant->currentValue()->value(), |
| lightSource.release()); |
| effect->inputEffects().append(input1); |
| return effect; |
| } |
| |
| } // namespace blink |