2 * Copyright (C) 2005 Oliver Hunt <ojh16@student.canterbury.ac.nz>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
22 #include "core/svg/SVGFEDiffuseLightingElement.h"
24 #include "core/rendering/style/RenderStyle.h"
25 #include "core/svg/SVGElementInstance.h"
26 #include "core/svg/SVGParserUtilities.h"
27 #include "core/svg/graphics/filters/SVGFilterBuilder.h"
28 #include "platform/graphics/filters/FEDiffuseLighting.h"
29 #include "platform/graphics/filters/FilterEffect.h"
33 // Animated property definitions
35 BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFEDiffuseLightingElement)
36 REGISTER_PARENT_ANIMATED_PROPERTIES(SVGFilterPrimitiveStandardAttributes)
37 END_REGISTER_ANIMATED_PROPERTIES
39 inline SVGFEDiffuseLightingElement::SVGFEDiffuseLightingElement(Document& document)
40 : SVGFilterPrimitiveStandardAttributes(SVGNames::feDiffuseLightingTag, document)
41 , m_diffuseConstant(SVGAnimatedNumber::create(this, SVGNames::diffuseConstantAttr, SVGNumber::create(1)))
42 , m_surfaceScale(SVGAnimatedNumber::create(this, SVGNames::surfaceScaleAttr, SVGNumber::create(1)))
43 , m_kernelUnitLength(SVGAnimatedNumberOptionalNumber::create(this, SVGNames::kernelUnitLengthAttr))
44 , m_in1(SVGAnimatedString::create(this, SVGNames::inAttr, SVGString::create()))
46 ScriptWrappable::init(this);
48 addToPropertyMap(m_diffuseConstant);
49 addToPropertyMap(m_surfaceScale);
50 addToPropertyMap(m_kernelUnitLength);
51 addToPropertyMap(m_in1);
52 registerAnimatedPropertiesForSVGFEDiffuseLightingElement();
55 PassRefPtr<SVGFEDiffuseLightingElement> SVGFEDiffuseLightingElement::create(Document& document)
57 return adoptRef(new SVGFEDiffuseLightingElement(document));
60 bool SVGFEDiffuseLightingElement::isSupportedAttribute(const QualifiedName& attrName)
62 DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
63 if (supportedAttributes.isEmpty()) {
64 supportedAttributes.add(SVGNames::inAttr);
65 supportedAttributes.add(SVGNames::diffuseConstantAttr);
66 supportedAttributes.add(SVGNames::surfaceScaleAttr);
67 supportedAttributes.add(SVGNames::kernelUnitLengthAttr);
68 supportedAttributes.add(SVGNames::lighting_colorAttr); // Even though it's a SVG-CSS property, we override its handling here.
70 return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
73 void SVGFEDiffuseLightingElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
75 if (!isSupportedAttribute(name) || name == SVGNames::lighting_colorAttr) {
76 SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
80 SVGParsingError parseError = NoError;
82 if (name == SVGNames::inAttr)
83 m_in1->setBaseValueAsString(value, parseError);
84 else if (name == SVGNames::diffuseConstantAttr)
85 m_diffuseConstant->setBaseValueAsString(value, parseError);
86 else if (name == SVGNames::surfaceScaleAttr)
87 m_surfaceScale->setBaseValueAsString(value, parseError);
88 else if (name == SVGNames::kernelUnitLengthAttr)
89 m_kernelUnitLength->setBaseValueAsString(value, parseError);
93 reportAttributeParsingError(parseError, name, value);
96 bool SVGFEDiffuseLightingElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
98 FEDiffuseLighting* diffuseLighting = static_cast<FEDiffuseLighting*>(effect);
100 if (attrName == SVGNames::lighting_colorAttr) {
101 RenderObject* renderer = this->renderer();
103 ASSERT(renderer->style());
104 return diffuseLighting->setLightingColor(renderer->style()->svgStyle()->lightingColor());
106 if (attrName == SVGNames::surfaceScaleAttr)
107 return diffuseLighting->setSurfaceScale(m_surfaceScale->currentValue()->value());
108 if (attrName == SVGNames::diffuseConstantAttr)
109 return diffuseLighting->setDiffuseConstant(m_diffuseConstant->currentValue()->value());
111 LightSource* lightSource = const_cast<LightSource*>(diffuseLighting->lightSource());
112 const SVGFELightElement* lightElement = SVGFELightElement::findLightElement(this);
114 ASSERT(lightElement);
116 if (attrName == SVGNames::azimuthAttr)
117 return lightSource->setAzimuth(lightElement->azimuth()->currentValue()->value());
118 if (attrName == SVGNames::elevationAttr)
119 return lightSource->setElevation(lightElement->elevation()->currentValue()->value());
120 if (attrName == SVGNames::xAttr)
121 return lightSource->setX(lightElement->x()->currentValue()->value());
122 if (attrName == SVGNames::yAttr)
123 return lightSource->setY(lightElement->y()->currentValue()->value());
124 if (attrName == SVGNames::zAttr)
125 return lightSource->setZ(lightElement->z()->currentValue()->value());
126 if (attrName == SVGNames::pointsAtXAttr)
127 return lightSource->setPointsAtX(lightElement->pointsAtX()->currentValue()->value());
128 if (attrName == SVGNames::pointsAtYAttr)
129 return lightSource->setPointsAtY(lightElement->pointsAtY()->currentValue()->value());
130 if (attrName == SVGNames::pointsAtZAttr)
131 return lightSource->setPointsAtZ(lightElement->pointsAtZ()->currentValue()->value());
132 if (attrName == SVGNames::specularExponentAttr)
133 return lightSource->setSpecularExponent(lightElement->specularExponent()->currentValue()->value());
134 if (attrName == SVGNames::limitingConeAngleAttr)
135 return lightSource->setLimitingConeAngle(lightElement->limitingConeAngle()->currentValue()->value());
137 ASSERT_NOT_REACHED();
141 void SVGFEDiffuseLightingElement::svgAttributeChanged(const QualifiedName& attrName)
143 if (!isSupportedAttribute(attrName)) {
144 SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
148 SVGElementInstance::InvalidationGuard invalidationGuard(this);
150 if (attrName == SVGNames::surfaceScaleAttr
151 || attrName == SVGNames::diffuseConstantAttr
152 || attrName == SVGNames::kernelUnitLengthAttr
153 || attrName == SVGNames::lighting_colorAttr) {
154 primitiveAttributeChanged(attrName);
158 if (attrName == SVGNames::inAttr) {
163 ASSERT_NOT_REACHED();
166 void SVGFEDiffuseLightingElement::lightElementAttributeChanged(const SVGFELightElement* lightElement, const QualifiedName& attrName)
168 if (SVGFELightElement::findLightElement(this) != lightElement)
171 // The light element has different attribute names.
172 primitiveAttributeChanged(attrName);
175 PassRefPtr<FilterEffect> SVGFEDiffuseLightingElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
177 FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value()));
182 RefPtr<LightSource> lightSource = SVGFELightElement::findLightSource(this);
186 RenderObject* renderer = this->renderer();
190 ASSERT(renderer->style());
191 Color color = renderer->style()->svgStyle()->lightingColor();
193 RefPtr<FilterEffect> effect = FEDiffuseLighting::create(filter, color, m_surfaceScale->currentValue()->value(), m_diffuseConstant->currentValue()->value(),
194 kernelUnitLengthX()->currentValue()->value(), kernelUnitLengthY()->currentValue()->value(), lightSource.release());
195 effect->inputEffects().append(input1);
196 return effect.release();