File indexing completed on 2024-04-28 15:24:31
0001 /* 0002 Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> 0003 2004, 2005, 2006 Rob Buis <buis@kde.org> 0004 2005 Oliver Hunt <oliver@nerget.com> 0005 0006 This library is free software; you can redistribute it and/or 0007 modify it under the terms of the GNU Library General Public 0008 License as published by the Free Software Foundation; either 0009 version 2 of the License, or (at your option) any later version. 0010 0011 This library is distributed in the hope that it will be useful, 0012 but WITHOUT ANY WARRANTY; without even the implied warranty of 0013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 0014 Library General Public License for more details. 0015 0016 You should have received a copy of the GNU Library General Public License 0017 along with this library; see the file COPYING.LIB. If not, write to 0018 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 0019 Boston, MA 02110-1301, USA. 0020 */ 0021 0022 #if ENABLE(SVG) && ENABLE(SVG_FILTERS) 0023 #include "SVGFESpecularLightingElement.h" 0024 0025 #include "RenderObject.h" 0026 #include "SVGColor.h" 0027 #include "SVGNames.h" 0028 #include "SVGFELightElement.h" 0029 #include "SVGParserUtilities.h" 0030 #include "SVGResourceFilter.h" 0031 0032 namespace WebCore 0033 { 0034 0035 SVGFESpecularLightingElement::SVGFESpecularLightingElement(const QualifiedName &tagName, Document *doc) 0036 : SVGFilterPrimitiveStandardAttributes(tagName, doc) 0037 , m_specularConstant(1.0f) 0038 , m_specularExponent(1.0f) 0039 , m_surfaceScale(1.0f) 0040 , m_kernelUnitLengthX(0.0f) 0041 , m_kernelUnitLengthY(0.0f) 0042 , m_filterEffect(0) 0043 { 0044 } 0045 0046 SVGFESpecularLightingElement::~SVGFESpecularLightingElement() 0047 { 0048 delete m_filterEffect; 0049 } 0050 0051 ANIMATED_PROPERTY_DEFINITIONS(SVGFESpecularLightingElement, String, String, string, In1, in1, SVGNames::inAttr, m_in1) 0052 ANIMATED_PROPERTY_DEFINITIONS(SVGFESpecularLightingElement, float, Number, number, SpecularConstant, specularConstant, SVGNames::specularConstantAttr, m_specularConstant) 0053 ANIMATED_PROPERTY_DEFINITIONS(SVGFESpecularLightingElement, float, Number, number, SpecularExponent, specularExponent, SVGNames::specularExponentAttr, m_specularExponent) 0054 ANIMATED_PROPERTY_DEFINITIONS(SVGFESpecularLightingElement, float, Number, number, SurfaceScale, surfaceScale, SVGNames::surfaceScaleAttr, m_surfaceScale) 0055 ANIMATED_PROPERTY_DEFINITIONS_WITH_CUSTOM_IDENTIFIER(SVGFESpecularLightingElement, float, Number, number, KernelUnitLengthX, kernelUnitLengthX, SVGNames::kernelUnitLengthAttr, "kernelUnitLengthX", m_kernelUnitLengthX) 0056 ANIMATED_PROPERTY_DEFINITIONS_WITH_CUSTOM_IDENTIFIER(SVGFESpecularLightingElement, float, Number, number, KernelUnitLengthY, kernelUnitLengthY, SVGNames::kernelUnitLengthAttr, "kernelUnitLengthY", m_kernelUnitLengthY) 0057 0058 void SVGFESpecularLightingElement::parseMappedAttribute(MappedAttribute *attr) 0059 { 0060 const String &value = attr->value(); 0061 if (attr->name() == SVGNames::inAttr) { 0062 setIn1BaseValue(value); 0063 } else if (attr->name() == SVGNames::surfaceScaleAttr) { 0064 setSurfaceScaleBaseValue(value.toFloat()); 0065 } else if (attr->name() == SVGNames::specularConstantAttr) { 0066 setSpecularConstantBaseValue(value.toFloat()); 0067 } else if (attr->name() == SVGNames::specularExponentAttr) { 0068 setSpecularExponentBaseValue(value.toFloat()); 0069 } else if (attr->name() == SVGNames::kernelUnitLengthAttr) { 0070 float x, y; 0071 if (parseNumberOptionalNumber(value, x, y)) { 0072 setKernelUnitLengthXBaseValue(x); 0073 setKernelUnitLengthYBaseValue(y); 0074 } 0075 } else { 0076 SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr); 0077 } 0078 } 0079 0080 SVGFESpecularLighting *SVGFESpecularLightingElement::filterEffect(SVGResourceFilter *filter) const 0081 { 0082 if (!m_filterEffect) { 0083 m_filterEffect = new SVGFESpecularLighting(filter); 0084 } 0085 0086 m_filterEffect->setIn(in1()); 0087 m_filterEffect->setSpecularConstant((specularConstant())); 0088 m_filterEffect->setSpecularExponent((specularExponent())); 0089 m_filterEffect->setSurfaceScale((surfaceScale())); 0090 m_filterEffect->setKernelUnitLengthX((kernelUnitLengthX())); 0091 m_filterEffect->setKernelUnitLengthY((kernelUnitLengthY())); 0092 0093 SVGFESpecularLightingElement *nonConstThis = const_cast<SVGFESpecularLightingElement *>(this); 0094 0095 RenderStyle *parentStyle = nonConstThis->styleForRenderer(parent()->renderer()); 0096 RenderStyle *filterStyle = nonConstThis->resolveStyle(parentStyle); 0097 0098 m_filterEffect->setLightingColor(filterStyle->svgStyle()->lightingColor()); 0099 0100 parentStyle->deref(document()->renderArena()); 0101 filterStyle->deref(document()->renderArena()); 0102 0103 setStandardAttributes(m_filterEffect); 0104 0105 updateLights(); 0106 return m_filterEffect; 0107 } 0108 0109 void SVGFESpecularLightingElement::updateLights() const 0110 { 0111 if (!m_filterEffect) { 0112 return; 0113 } 0114 0115 SVGLightSource *light = 0; 0116 for (Node *n = firstChild(); n; n = n->nextSibling()) { 0117 if (n->hasTagName(SVGNames::feDistantLightTag) || 0118 n->hasTagName(SVGNames::fePointLightTag) || 0119 n->hasTagName(SVGNames::feSpotLightTag)) { 0120 SVGFELightElement *lightNode = static_cast<SVGFELightElement *>(n); 0121 light = lightNode->lightSource(); 0122 break; 0123 } 0124 } 0125 0126 m_filterEffect->setLightSource(light); 0127 } 0128 0129 } 0130 0131 #endif // ENABLE(SVG) 0132