1/* 2 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> 3 * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org> 4 * Copyright (C) 2005 Oliver Hunt <oliver@nerget.com> 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22#include "config.h" 23 24#if ENABLE(SVG) && ENABLE(FILTERS) 25#include "SVGFESpecularLightingElement.h" 26 27#include "Attribute.h" 28#include "FilterEffect.h" 29#include "RenderStyle.h" 30#include "SVGColor.h" 31#include "SVGElementInstance.h" 32#include "SVGFELightElement.h" 33#include "SVGFilterBuilder.h" 34#include "SVGNames.h" 35#include "SVGParserUtilities.h" 36 37namespace WebCore { 38 39// Animated property definitions 40DEFINE_ANIMATED_STRING(SVGFESpecularLightingElement, SVGNames::inAttr, In1, in1) 41DEFINE_ANIMATED_NUMBER(SVGFESpecularLightingElement, SVGNames::specularConstantAttr, SpecularConstant, specularConstant) 42DEFINE_ANIMATED_NUMBER(SVGFESpecularLightingElement, SVGNames::specularExponentAttr, SpecularExponent, specularExponent) 43DEFINE_ANIMATED_NUMBER(SVGFESpecularLightingElement, SVGNames::surfaceScaleAttr, SurfaceScale, surfaceScale) 44DEFINE_ANIMATED_NUMBER_MULTIPLE_WRAPPERS(SVGFESpecularLightingElement, SVGNames::kernelUnitLengthAttr, kernelUnitLengthXIdentifier(), KernelUnitLengthX, kernelUnitLengthX) 45DEFINE_ANIMATED_NUMBER_MULTIPLE_WRAPPERS(SVGFESpecularLightingElement, SVGNames::kernelUnitLengthAttr, kernelUnitLengthYIdentifier(), KernelUnitLengthY, kernelUnitLengthY) 46 47BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFESpecularLightingElement) 48 REGISTER_LOCAL_ANIMATED_PROPERTY(in1) 49 REGISTER_LOCAL_ANIMATED_PROPERTY(specularConstant) 50 REGISTER_LOCAL_ANIMATED_PROPERTY(specularExponent) 51 REGISTER_LOCAL_ANIMATED_PROPERTY(surfaceScale) 52 REGISTER_LOCAL_ANIMATED_PROPERTY(kernelUnitLengthX) 53 REGISTER_LOCAL_ANIMATED_PROPERTY(kernelUnitLengthY) 54 REGISTER_PARENT_ANIMATED_PROPERTIES(SVGFilterPrimitiveStandardAttributes) 55END_REGISTER_ANIMATED_PROPERTIES 56 57inline SVGFESpecularLightingElement::SVGFESpecularLightingElement(const QualifiedName& tagName, Document* document) 58 : SVGFilterPrimitiveStandardAttributes(tagName, document) 59 , m_specularConstant(1) 60 , m_specularExponent(1) 61 , m_surfaceScale(1) 62{ 63 ASSERT(hasTagName(SVGNames::feSpecularLightingTag)); 64 registerAnimatedPropertiesForSVGFESpecularLightingElement(); 65} 66 67PassRefPtr<SVGFESpecularLightingElement> SVGFESpecularLightingElement::create(const QualifiedName& tagName, Document* document) 68{ 69 return adoptRef(new SVGFESpecularLightingElement(tagName, document)); 70} 71 72const AtomicString& SVGFESpecularLightingElement::kernelUnitLengthXIdentifier() 73{ 74 DEFINE_STATIC_LOCAL(AtomicString, s_identifier, ("SVGKernelUnitLengthX", AtomicString::ConstructFromLiteral)); 75 return s_identifier; 76} 77 78const AtomicString& SVGFESpecularLightingElement::kernelUnitLengthYIdentifier() 79{ 80 DEFINE_STATIC_LOCAL(AtomicString, s_identifier, ("SVGKernelUnitLengthY", AtomicString::ConstructFromLiteral)); 81 return s_identifier; 82} 83 84bool SVGFESpecularLightingElement::isSupportedAttribute(const QualifiedName& attrName) 85{ 86 DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ()); 87 if (supportedAttributes.isEmpty()) { 88 supportedAttributes.add(SVGNames::inAttr); 89 supportedAttributes.add(SVGNames::specularConstantAttr); 90 supportedAttributes.add(SVGNames::specularExponentAttr); 91 supportedAttributes.add(SVGNames::surfaceScaleAttr); 92 supportedAttributes.add(SVGNames::kernelUnitLengthAttr); 93 } 94 return supportedAttributes.contains<QualifiedName, SVGAttributeHashTranslator>(attrName); 95} 96 97void SVGFESpecularLightingElement::parseAttribute(const QualifiedName& name, const AtomicString& value) 98{ 99 if (!isSupportedAttribute(name)) { 100 SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value); 101 return; 102 } 103 104 if (name == SVGNames::inAttr) { 105 setIn1BaseValue(value); 106 return; 107 } 108 109 if (name == SVGNames::surfaceScaleAttr) { 110 setSurfaceScaleBaseValue(value.toFloat()); 111 return; 112 } 113 114 if (name == SVGNames::specularConstantAttr) { 115 setSpecularConstantBaseValue(value.toFloat()); 116 return; 117 } 118 119 if (name == SVGNames::specularExponentAttr) { 120 setSpecularExponentBaseValue(value.toFloat()); 121 return; 122 } 123 124 if (name == SVGNames::kernelUnitLengthAttr) { 125 float x, y; 126 if (parseNumberOptionalNumber(value, x, y)) { 127 setKernelUnitLengthXBaseValue(x); 128 setKernelUnitLengthYBaseValue(y); 129 } 130 return; 131 } 132 133 ASSERT_NOT_REACHED(); 134} 135 136bool SVGFESpecularLightingElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName) 137{ 138 FESpecularLighting* specularLighting = static_cast<FESpecularLighting*>(effect); 139 140 if (attrName == SVGNames::lighting_colorAttr) { 141 RenderObject* renderer = this->renderer(); 142 ASSERT(renderer); 143 ASSERT(renderer->style()); 144 return specularLighting->setLightingColor(renderer->style()->svgStyle()->lightingColor()); 145 } 146 if (attrName == SVGNames::surfaceScaleAttr) 147 return specularLighting->setSurfaceScale(surfaceScale()); 148 if (attrName == SVGNames::specularConstantAttr) 149 return specularLighting->setSpecularConstant(specularConstant()); 150 if (attrName == SVGNames::specularExponentAttr) 151 return specularLighting->setSpecularExponent(specularExponent()); 152 153 LightSource* lightSource = const_cast<LightSource*>(specularLighting->lightSource()); 154 const SVGFELightElement* lightElement = SVGFELightElement::findLightElement(this); 155 ASSERT(lightSource); 156 ASSERT(lightElement); 157 158 if (attrName == SVGNames::azimuthAttr) 159 return lightSource->setAzimuth(lightElement->azimuth()); 160 if (attrName == SVGNames::elevationAttr) 161 return lightSource->setElevation(lightElement->elevation()); 162 if (attrName == SVGNames::xAttr) 163 return lightSource->setX(lightElement->x()); 164 if (attrName == SVGNames::yAttr) 165 return lightSource->setY(lightElement->y()); 166 if (attrName == SVGNames::zAttr) 167 return lightSource->setZ(lightElement->z()); 168 if (attrName == SVGNames::pointsAtXAttr) 169 return lightSource->setPointsAtX(lightElement->pointsAtX()); 170 if (attrName == SVGNames::pointsAtYAttr) 171 return lightSource->setPointsAtY(lightElement->pointsAtY()); 172 if (attrName == SVGNames::pointsAtZAttr) 173 return lightSource->setPointsAtZ(lightElement->pointsAtZ()); 174 if (attrName == SVGNames::specularExponentAttr) 175 return lightSource->setSpecularExponent(lightElement->specularExponent()); 176 if (attrName == SVGNames::limitingConeAngleAttr) 177 return lightSource->setLimitingConeAngle(lightElement->limitingConeAngle()); 178 179 ASSERT_NOT_REACHED(); 180 return false; 181} 182 183void SVGFESpecularLightingElement::svgAttributeChanged(const QualifiedName& attrName) 184{ 185 if (!isSupportedAttribute(attrName)) { 186 SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName); 187 return; 188 } 189 190 SVGElementInstance::InvalidationGuard invalidationGuard(this); 191 192 if (attrName == SVGNames::surfaceScaleAttr 193 || attrName == SVGNames::specularConstantAttr 194 || attrName == SVGNames::specularExponentAttr 195 || attrName == SVGNames::kernelUnitLengthAttr) { 196 primitiveAttributeChanged(attrName); 197 return; 198 } 199 200 if (attrName == SVGNames::inAttr) { 201 invalidate(); 202 return; 203 } 204 205 ASSERT_NOT_REACHED(); 206} 207 208void SVGFESpecularLightingElement::lightElementAttributeChanged(const SVGFELightElement* lightElement, const QualifiedName& attrName) 209{ 210 if (SVGFELightElement::findLightElement(this) != lightElement) 211 return; 212 213 // The light element has different attribute names so attrName can identify the requested attribute. 214 primitiveAttributeChanged(attrName); 215} 216 217PassRefPtr<FilterEffect> SVGFESpecularLightingElement::build(SVGFilterBuilder* filterBuilder, Filter* filter) 218{ 219 FilterEffect* input1 = filterBuilder->getEffectById(in1()); 220 221 if (!input1) 222 return 0; 223 224 RefPtr<LightSource> lightSource = SVGFELightElement::findLightSource(this); 225 if (!lightSource) 226 return 0; 227 228 RenderObject* renderer = this->renderer(); 229 if (!renderer) 230 return 0; 231 232 ASSERT(renderer->style()); 233 Color color = renderer->style()->svgStyle()->lightingColor(); 234 235 RefPtr<FilterEffect> effect = FESpecularLighting::create(filter, color, surfaceScale(), specularConstant(), 236 specularExponent(), kernelUnitLengthX(), kernelUnitLengthY(), lightSource.release()); 237 effect->inputEffects().append(input1); 238 return effect.release(); 239} 240 241} 242 243#endif // ENABLE(SVG) 244