1/* 2 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> 3 * 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. 8 * 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. 13 * 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. 18 */ 19 20#include "config.h" 21 22#if ENABLE(SVG) && ENABLE(FILTERS) 23#include "SVGFEMorphologyElement.h" 24 25#include "Attribute.h" 26#include "FilterEffect.h" 27#include "SVGElementInstance.h" 28#include "SVGFilterBuilder.h" 29#include "SVGNames.h" 30#include "SVGParserUtilities.h" 31 32namespace WebCore { 33 34// Animated property definitions 35DEFINE_ANIMATED_STRING(SVGFEMorphologyElement, SVGNames::inAttr, In1, in1) 36DEFINE_ANIMATED_ENUMERATION(SVGFEMorphologyElement, SVGNames::operatorAttr, _operator, _operator, MorphologyOperatorType) 37DEFINE_ANIMATED_NUMBER_MULTIPLE_WRAPPERS(SVGFEMorphologyElement, SVGNames::radiusAttr, radiusXIdentifier(), RadiusX, radiusX) 38DEFINE_ANIMATED_NUMBER_MULTIPLE_WRAPPERS(SVGFEMorphologyElement, SVGNames::radiusAttr, radiusYIdentifier(), RadiusY, radiusY) 39 40BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFEMorphologyElement) 41 REGISTER_LOCAL_ANIMATED_PROPERTY(in1) 42 REGISTER_LOCAL_ANIMATED_PROPERTY(_operator) 43 REGISTER_LOCAL_ANIMATED_PROPERTY(radiusX) 44 REGISTER_LOCAL_ANIMATED_PROPERTY(radiusY) 45 REGISTER_PARENT_ANIMATED_PROPERTIES(SVGFilterPrimitiveStandardAttributes) 46END_REGISTER_ANIMATED_PROPERTIES 47 48inline SVGFEMorphologyElement::SVGFEMorphologyElement(const QualifiedName& tagName, Document* document) 49 : SVGFilterPrimitiveStandardAttributes(tagName, document) 50 , m__operator(FEMORPHOLOGY_OPERATOR_ERODE) 51{ 52 ASSERT(hasTagName(SVGNames::feMorphologyTag)); 53 registerAnimatedPropertiesForSVGFEMorphologyElement(); 54} 55 56PassRefPtr<SVGFEMorphologyElement> SVGFEMorphologyElement::create(const QualifiedName& tagName, Document* document) 57{ 58 return adoptRef(new SVGFEMorphologyElement(tagName, document)); 59} 60 61const AtomicString& SVGFEMorphologyElement::radiusXIdentifier() 62{ 63 DEFINE_STATIC_LOCAL(AtomicString, s_identifier, ("SVGRadiusX", AtomicString::ConstructFromLiteral)); 64 return s_identifier; 65} 66 67const AtomicString& SVGFEMorphologyElement::radiusYIdentifier() 68{ 69 DEFINE_STATIC_LOCAL(AtomicString, s_identifier, ("SVGRadiusY", AtomicString::ConstructFromLiteral)); 70 return s_identifier; 71} 72 73void SVGFEMorphologyElement::setRadius(float x, float y) 74{ 75 setRadiusXBaseValue(x); 76 setRadiusYBaseValue(y); 77 invalidate(); 78} 79 80bool SVGFEMorphologyElement::isSupportedAttribute(const QualifiedName& attrName) 81{ 82 DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ()); 83 if (supportedAttributes.isEmpty()) { 84 supportedAttributes.add(SVGNames::inAttr); 85 supportedAttributes.add(SVGNames::operatorAttr); 86 supportedAttributes.add(SVGNames::radiusAttr); 87 } 88 return supportedAttributes.contains<QualifiedName, SVGAttributeHashTranslator>(attrName); 89} 90 91void SVGFEMorphologyElement::parseAttribute(const QualifiedName& name, const AtomicString& value) 92{ 93 if (!isSupportedAttribute(name)) { 94 SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value); 95 return; 96 } 97 98 if (name == SVGNames::operatorAttr) { 99 MorphologyOperatorType propertyValue = SVGPropertyTraits<MorphologyOperatorType>::fromString(value); 100 if (propertyValue > 0) 101 set_operatorBaseValue(propertyValue); 102 return; 103 } 104 105 if (name == SVGNames::inAttr) { 106 setIn1BaseValue(value); 107 return; 108 } 109 110 if (name == SVGNames::radiusAttr) { 111 float x, y; 112 if (parseNumberOptionalNumber(value, x, y)) { 113 setRadiusXBaseValue(x); 114 setRadiusYBaseValue(y); 115 } 116 return; 117 } 118 119 ASSERT_NOT_REACHED(); 120} 121 122bool SVGFEMorphologyElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName) 123{ 124 FEMorphology* morphology = static_cast<FEMorphology*>(effect); 125 if (attrName == SVGNames::operatorAttr) 126 return morphology->setMorphologyOperator(_operator()); 127 if (attrName == SVGNames::radiusAttr) { 128 // Both setRadius functions should be evaluated separately. 129 bool isRadiusXChanged = morphology->setRadiusX(radiusX()); 130 bool isRadiusYChanged = morphology->setRadiusY(radiusY()); 131 return isRadiusXChanged || isRadiusYChanged; 132 } 133 134 ASSERT_NOT_REACHED(); 135 return false; 136} 137 138void SVGFEMorphologyElement::svgAttributeChanged(const QualifiedName& attrName) 139{ 140 if (!isSupportedAttribute(attrName)) { 141 SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName); 142 return; 143 } 144 145 SVGElementInstance::InvalidationGuard invalidationGuard(this); 146 147 if (attrName == SVGNames::operatorAttr || attrName == SVGNames::radiusAttr) { 148 primitiveAttributeChanged(attrName); 149 return; 150 } 151 152 if (attrName == SVGNames::inAttr) { 153 invalidate(); 154 return; 155 } 156 157 ASSERT_NOT_REACHED(); 158} 159 160PassRefPtr<FilterEffect> SVGFEMorphologyElement::build(SVGFilterBuilder* filterBuilder, Filter* filter) 161{ 162 FilterEffect* input1 = filterBuilder->getEffectById(in1()); 163 float xRadius = radiusX(); 164 float yRadius = radiusY(); 165 166 if (!input1) 167 return 0; 168 169 if (xRadius < 0 || yRadius < 0) 170 return 0; 171 172 RefPtr<FilterEffect> effect = FEMorphology::create(filter, _operator(), xRadius, yRadius); 173 effect->inputEffects().append(input1); 174 return effect.release(); 175} 176 177} // namespace WebCore 178 179#endif // ENABLE(SVG) 180