2 * Copyright (C) 2006 Oliver Hunt <oliver@nerget.com>
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/SVGFEDisplacementMapElement.h"
25 #include "platform/graphics/filters/FilterEffect.h"
26 #include "core/svg/SVGElementInstance.h"
27 #include "core/svg/graphics/filters/SVGFilterBuilder.h"
31 template<> const SVGEnumerationStringEntries& getStaticStringEntries<ChannelSelectorType>()
33 DEFINE_STATIC_LOCAL(SVGEnumerationStringEntries, entries, ());
34 if (entries.isEmpty()) {
35 entries.append(std::make_pair(CHANNEL_R, "R"));
36 entries.append(std::make_pair(CHANNEL_G, "G"));
37 entries.append(std::make_pair(CHANNEL_B, "B"));
38 entries.append(std::make_pair(CHANNEL_A, "A"));
43 inline SVGFEDisplacementMapElement::SVGFEDisplacementMapElement(Document& document)
44 : SVGFilterPrimitiveStandardAttributes(SVGNames::feDisplacementMapTag, document)
45 , m_scale(SVGAnimatedNumber::create(this, SVGNames::scaleAttr, SVGNumber::create(0)))
46 , m_in1(SVGAnimatedString::create(this, SVGNames::inAttr, SVGString::create()))
47 , m_in2(SVGAnimatedString::create(this, SVGNames::in2Attr, SVGString::create()))
48 , m_xChannelSelector(SVGAnimatedEnumeration<ChannelSelectorType>::create(this, SVGNames::xChannelSelectorAttr, CHANNEL_A))
49 , m_yChannelSelector(SVGAnimatedEnumeration<ChannelSelectorType>::create(this, SVGNames::yChannelSelectorAttr, CHANNEL_A))
51 ScriptWrappable::init(this);
53 addToPropertyMap(m_scale);
54 addToPropertyMap(m_in1);
55 addToPropertyMap(m_in2);
56 addToPropertyMap(m_xChannelSelector);
57 addToPropertyMap(m_yChannelSelector);
60 PassRefPtr<SVGFEDisplacementMapElement> SVGFEDisplacementMapElement::create(Document& document)
62 return adoptRef(new SVGFEDisplacementMapElement(document));
65 bool SVGFEDisplacementMapElement::isSupportedAttribute(const QualifiedName& attrName)
67 DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
68 if (supportedAttributes.isEmpty()) {
69 supportedAttributes.add(SVGNames::inAttr);
70 supportedAttributes.add(SVGNames::in2Attr);
71 supportedAttributes.add(SVGNames::xChannelSelectorAttr);
72 supportedAttributes.add(SVGNames::yChannelSelectorAttr);
73 supportedAttributes.add(SVGNames::scaleAttr);
75 return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
78 void SVGFEDisplacementMapElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
80 if (!isSupportedAttribute(name)) {
81 SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
85 SVGParsingError parseError = NoError;
87 if (name == SVGNames::inAttr)
88 m_in1->setBaseValueAsString(value, parseError);
89 else if (name == SVGNames::in2Attr)
90 m_in2->setBaseValueAsString(value, parseError);
91 else if (name == SVGNames::scaleAttr)
92 m_scale->setBaseValueAsString(value, parseError);
93 else if (name == SVGNames::xChannelSelectorAttr)
94 m_xChannelSelector->setBaseValueAsString(value, parseError);
95 else if (name == SVGNames::yChannelSelectorAttr)
96 m_yChannelSelector->setBaseValueAsString(value, parseError);
100 reportAttributeParsingError(parseError, name, value);
103 bool SVGFEDisplacementMapElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
105 FEDisplacementMap* displacementMap = static_cast<FEDisplacementMap*>(effect);
106 if (attrName == SVGNames::xChannelSelectorAttr)
107 return displacementMap->setXChannelSelector(m_xChannelSelector->currentValue()->enumValue());
108 if (attrName == SVGNames::yChannelSelectorAttr)
109 return displacementMap->setYChannelSelector(m_yChannelSelector->currentValue()->enumValue());
110 if (attrName == SVGNames::scaleAttr)
111 return displacementMap->setScale(m_scale->currentValue()->value());
113 ASSERT_NOT_REACHED();
117 void SVGFEDisplacementMapElement::svgAttributeChanged(const QualifiedName& attrName)
119 if (!isSupportedAttribute(attrName)) {
120 SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
124 SVGElementInstance::InvalidationGuard invalidationGuard(this);
126 if (attrName == SVGNames::xChannelSelectorAttr || attrName == SVGNames::yChannelSelectorAttr || attrName == SVGNames::scaleAttr) {
127 primitiveAttributeChanged(attrName);
131 if (attrName == SVGNames::inAttr || attrName == SVGNames::in2Attr) {
136 ASSERT_NOT_REACHED();
139 PassRefPtr<FilterEffect> SVGFEDisplacementMapElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
141 FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value()));
142 FilterEffect* input2 = filterBuilder->getEffectById(AtomicString(m_in2->currentValue()->value()));
144 if (!input1 || !input2)
147 RefPtr<FilterEffect> effect = FEDisplacementMap::create(filter, m_xChannelSelector->currentValue()->enumValue(), m_yChannelSelector->currentValue()->enumValue(), m_scale->currentValue()->value());
148 FilterEffectVector& inputEffects = effect->inputEffects();
149 inputEffects.reserveCapacity(2);
150 inputEffects.append(input1);
151 inputEffects.append(input2);
152 return effect.release();