1/* 2 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> 3 * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org> 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21#include "config.h" 22 23#include "core/svg/SVGFECompositeElement.h" 24 25#include "core/SVGNames.h" 26#include "platform/graphics/filters/FilterEffect.h" 27#include "core/svg/graphics/filters/SVGFilterBuilder.h" 28 29namespace blink { 30 31template<> const SVGEnumerationStringEntries& getStaticStringEntries<CompositeOperationType>() 32{ 33 DEFINE_STATIC_LOCAL(SVGEnumerationStringEntries, entries, ()); 34 if (entries.isEmpty()) { 35 entries.append(std::make_pair(FECOMPOSITE_OPERATOR_OVER, "over")); 36 entries.append(std::make_pair(FECOMPOSITE_OPERATOR_IN, "in")); 37 entries.append(std::make_pair(FECOMPOSITE_OPERATOR_OUT, "out")); 38 entries.append(std::make_pair(FECOMPOSITE_OPERATOR_ATOP, "atop")); 39 entries.append(std::make_pair(FECOMPOSITE_OPERATOR_XOR, "xor")); 40 entries.append(std::make_pair(FECOMPOSITE_OPERATOR_ARITHMETIC, "arithmetic")); 41 } 42 return entries; 43} 44 45inline SVGFECompositeElement::SVGFECompositeElement(Document& document) 46 : SVGFilterPrimitiveStandardAttributes(SVGNames::feCompositeTag, document) 47 , m_k1(SVGAnimatedNumber::create(this, SVGNames::k1Attr, SVGNumber::create())) 48 , m_k2(SVGAnimatedNumber::create(this, SVGNames::k2Attr, SVGNumber::create())) 49 , m_k3(SVGAnimatedNumber::create(this, SVGNames::k3Attr, SVGNumber::create())) 50 , m_k4(SVGAnimatedNumber::create(this, SVGNames::k4Attr, SVGNumber::create())) 51 , m_in1(SVGAnimatedString::create(this, SVGNames::inAttr, SVGString::create())) 52 , m_in2(SVGAnimatedString::create(this, SVGNames::in2Attr, SVGString::create())) 53 , m_svgOperator(SVGAnimatedEnumeration<CompositeOperationType>::create(this, SVGNames::operatorAttr, FECOMPOSITE_OPERATOR_OVER)) 54{ 55 addToPropertyMap(m_k1); 56 addToPropertyMap(m_k2); 57 addToPropertyMap(m_k3); 58 addToPropertyMap(m_k4); 59 addToPropertyMap(m_in1); 60 addToPropertyMap(m_in2); 61 addToPropertyMap(m_svgOperator); 62} 63 64DEFINE_NODE_FACTORY(SVGFECompositeElement) 65 66bool SVGFECompositeElement::isSupportedAttribute(const QualifiedName& attrName) 67{ 68 DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ()); 69 if (supportedAttributes.isEmpty()) { 70 supportedAttributes.add(SVGNames::inAttr); 71 supportedAttributes.add(SVGNames::in2Attr); 72 supportedAttributes.add(SVGNames::operatorAttr); 73 supportedAttributes.add(SVGNames::k1Attr); 74 supportedAttributes.add(SVGNames::k2Attr); 75 supportedAttributes.add(SVGNames::k3Attr); 76 supportedAttributes.add(SVGNames::k4Attr); 77 } 78 return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName); 79} 80 81void SVGFECompositeElement::parseAttribute(const QualifiedName& name, const AtomicString& value) 82{ 83 if (!isSupportedAttribute(name)) { 84 SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value); 85 return; 86 } 87 88 SVGParsingError parseError = NoError; 89 90 if (name == SVGNames::inAttr) 91 m_in1->setBaseValueAsString(value, parseError); 92 else if (name == SVGNames::in2Attr) 93 m_in2->setBaseValueAsString(value, parseError); 94 else if (name == SVGNames::k1Attr) 95 m_k1->setBaseValueAsString(value, parseError); 96 else if (name == SVGNames::k2Attr) 97 m_k2->setBaseValueAsString(value, parseError); 98 else if (name == SVGNames::k3Attr) 99 m_k3->setBaseValueAsString(value, parseError); 100 else if (name == SVGNames::k4Attr) 101 m_k4->setBaseValueAsString(value, parseError); 102 else if (name == SVGNames::operatorAttr) 103 m_svgOperator->setBaseValueAsString(value, parseError); 104 else 105 ASSERT_NOT_REACHED(); 106 107 reportAttributeParsingError(parseError, name, value); 108} 109 110bool SVGFECompositeElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName) 111{ 112 FEComposite* composite = static_cast<FEComposite*>(effect); 113 if (attrName == SVGNames::operatorAttr) 114 return composite->setOperation(m_svgOperator->currentValue()->enumValue()); 115 if (attrName == SVGNames::k1Attr) 116 return composite->setK1(m_k1->currentValue()->value()); 117 if (attrName == SVGNames::k2Attr) 118 return composite->setK2(m_k2->currentValue()->value()); 119 if (attrName == SVGNames::k3Attr) 120 return composite->setK3(m_k3->currentValue()->value()); 121 if (attrName == SVGNames::k4Attr) 122 return composite->setK4(m_k4->currentValue()->value()); 123 124 ASSERT_NOT_REACHED(); 125 return false; 126} 127 128 129void SVGFECompositeElement::svgAttributeChanged(const QualifiedName& attrName) 130{ 131 if (!isSupportedAttribute(attrName)) { 132 SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName); 133 return; 134 } 135 136 SVGElement::InvalidationGuard invalidationGuard(this); 137 138 if (attrName == SVGNames::operatorAttr 139 || attrName == SVGNames::k1Attr 140 || attrName == SVGNames::k2Attr 141 || attrName == SVGNames::k3Attr 142 || attrName == SVGNames::k4Attr) { 143 primitiveAttributeChanged(attrName); 144 return; 145 } 146 147 if (attrName == SVGNames::inAttr || attrName == SVGNames::in2Attr) { 148 invalidate(); 149 return; 150 } 151 152 ASSERT_NOT_REACHED(); 153} 154 155PassRefPtr<FilterEffect> SVGFECompositeElement::build(SVGFilterBuilder* filterBuilder, Filter* filter) 156{ 157 FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value())); 158 FilterEffect* input2 = filterBuilder->getEffectById(AtomicString(m_in2->currentValue()->value())); 159 160 if (!input1 || !input2) 161 return nullptr; 162 163 RefPtr<FilterEffect> effect = FEComposite::create(filter, m_svgOperator->currentValue()->enumValue(), m_k1->currentValue()->value(), m_k2->currentValue()->value(), m_k3->currentValue()->value(), m_k4->currentValue()->value()); 164 FilterEffectVector& inputEffects = effect->inputEffects(); 165 inputEffects.reserveCapacity(2); 166 inputEffects.append(input1); 167 inputEffects.append(input2); 168 return effect.release(); 169} 170 171} // namespace blink 172