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"
24 #include "core/SVGNames.h"
25 #include "platform/graphics/filters/FilterEffect.h"
26 #include "core/svg/graphics/filters/SVGFilterBuilder.h"
30 template<> const SVGEnumerationStringEntries& getStaticStringEntries<ChannelSelectorType>()
32 DEFINE_STATIC_LOCAL(SVGEnumerationStringEntries, entries, ());
33 if (entries.isEmpty()) {
34 entries.append(std::make_pair(CHANNEL_R, "R"));
35 entries.append(std::make_pair(CHANNEL_G, "G"));
36 entries.append(std::make_pair(CHANNEL_B, "B"));
37 entries.append(std::make_pair(CHANNEL_A, "A"));
42 inline SVGFEDisplacementMapElement::SVGFEDisplacementMapElement(Document& document)
43 : SVGFilterPrimitiveStandardAttributes(SVGNames::feDisplacementMapTag, document)
44 , m_scale(SVGAnimatedNumber::create(this, SVGNames::scaleAttr, SVGNumber::create(0)))
45 , m_in1(SVGAnimatedString::create(this, SVGNames::inAttr, SVGString::create()))
46 , m_in2(SVGAnimatedString::create(this, SVGNames::in2Attr, SVGString::create()))
47 , m_xChannelSelector(SVGAnimatedEnumeration<ChannelSelectorType>::create(this, SVGNames::xChannelSelectorAttr, CHANNEL_A))
48 , m_yChannelSelector(SVGAnimatedEnumeration<ChannelSelectorType>::create(this, SVGNames::yChannelSelectorAttr, CHANNEL_A))
50 ScriptWrappable::init(this);
52 addToPropertyMap(m_scale);
53 addToPropertyMap(m_in1);
54 addToPropertyMap(m_in2);
55 addToPropertyMap(m_xChannelSelector);
56 addToPropertyMap(m_yChannelSelector);
59 DEFINE_NODE_FACTORY(SVGFEDisplacementMapElement)
61 bool SVGFEDisplacementMapElement::isSupportedAttribute(const QualifiedName& attrName)
63 DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
64 if (supportedAttributes.isEmpty()) {
65 supportedAttributes.add(SVGNames::inAttr);
66 supportedAttributes.add(SVGNames::in2Attr);
67 supportedAttributes.add(SVGNames::xChannelSelectorAttr);
68 supportedAttributes.add(SVGNames::yChannelSelectorAttr);
69 supportedAttributes.add(SVGNames::scaleAttr);
71 return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
74 void SVGFEDisplacementMapElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
76 if (!isSupportedAttribute(name)) {
77 SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
81 SVGParsingError parseError = NoError;
83 if (name == SVGNames::inAttr)
84 m_in1->setBaseValueAsString(value, parseError);
85 else if (name == SVGNames::in2Attr)
86 m_in2->setBaseValueAsString(value, parseError);
87 else if (name == SVGNames::scaleAttr)
88 m_scale->setBaseValueAsString(value, parseError);
89 else if (name == SVGNames::xChannelSelectorAttr)
90 m_xChannelSelector->setBaseValueAsString(value, parseError);
91 else if (name == SVGNames::yChannelSelectorAttr)
92 m_yChannelSelector->setBaseValueAsString(value, parseError);
96 reportAttributeParsingError(parseError, name, value);
99 bool SVGFEDisplacementMapElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
101 FEDisplacementMap* displacementMap = static_cast<FEDisplacementMap*>(effect);
102 if (attrName == SVGNames::xChannelSelectorAttr)
103 return displacementMap->setXChannelSelector(m_xChannelSelector->currentValue()->enumValue());
104 if (attrName == SVGNames::yChannelSelectorAttr)
105 return displacementMap->setYChannelSelector(m_yChannelSelector->currentValue()->enumValue());
106 if (attrName == SVGNames::scaleAttr)
107 return displacementMap->setScale(m_scale->currentValue()->value());
109 ASSERT_NOT_REACHED();
113 void SVGFEDisplacementMapElement::svgAttributeChanged(const QualifiedName& attrName)
115 if (!isSupportedAttribute(attrName)) {
116 SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
120 SVGElement::InvalidationGuard invalidationGuard(this);
122 if (attrName == SVGNames::xChannelSelectorAttr || attrName == SVGNames::yChannelSelectorAttr || attrName == SVGNames::scaleAttr) {
123 primitiveAttributeChanged(attrName);
127 if (attrName == SVGNames::inAttr || attrName == SVGNames::in2Attr) {
132 ASSERT_NOT_REACHED();
135 PassRefPtr<FilterEffect> SVGFEDisplacementMapElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
137 FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value()));
138 FilterEffect* input2 = filterBuilder->getEffectById(AtomicString(m_in2->currentValue()->value()));
140 if (!input1 || !input2)
143 RefPtr<FilterEffect> effect = FEDisplacementMap::create(filter, m_xChannelSelector->currentValue()->enumValue(), m_yChannelSelector->currentValue()->enumValue(), m_scale->currentValue()->value());
144 FilterEffectVector& inputEffects = effect->inputEffects();
145 inputEffects.reserveCapacity(2);
146 inputEffects.append(input1);
147 inputEffects.append(input2);
148 return effect.release();