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 addToPropertyMap(m_scale);
51 addToPropertyMap(m_in1);
52 addToPropertyMap(m_in2);
53 addToPropertyMap(m_xChannelSelector);
54 addToPropertyMap(m_yChannelSelector);
57 DEFINE_NODE_FACTORY(SVGFEDisplacementMapElement)
59 bool SVGFEDisplacementMapElement::isSupportedAttribute(const QualifiedName& attrName)
61 DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
62 if (supportedAttributes.isEmpty()) {
63 supportedAttributes.add(SVGNames::inAttr);
64 supportedAttributes.add(SVGNames::in2Attr);
65 supportedAttributes.add(SVGNames::xChannelSelectorAttr);
66 supportedAttributes.add(SVGNames::yChannelSelectorAttr);
67 supportedAttributes.add(SVGNames::scaleAttr);
69 return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
72 void SVGFEDisplacementMapElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
74 parseAttributeNew(name, value);
77 bool SVGFEDisplacementMapElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
79 FEDisplacementMap* displacementMap = static_cast<FEDisplacementMap*>(effect);
80 if (attrName == SVGNames::xChannelSelectorAttr)
81 return displacementMap->setXChannelSelector(m_xChannelSelector->currentValue()->enumValue());
82 if (attrName == SVGNames::yChannelSelectorAttr)
83 return displacementMap->setYChannelSelector(m_yChannelSelector->currentValue()->enumValue());
84 if (attrName == SVGNames::scaleAttr)
85 return displacementMap->setScale(m_scale->currentValue()->value());
91 void SVGFEDisplacementMapElement::svgAttributeChanged(const QualifiedName& attrName)
93 if (!isSupportedAttribute(attrName)) {
94 SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
98 SVGElement::InvalidationGuard invalidationGuard(this);
100 if (attrName == SVGNames::xChannelSelectorAttr || attrName == SVGNames::yChannelSelectorAttr || attrName == SVGNames::scaleAttr) {
101 primitiveAttributeChanged(attrName);
105 if (attrName == SVGNames::inAttr || attrName == SVGNames::in2Attr) {
110 ASSERT_NOT_REACHED();
113 PassRefPtr<FilterEffect> SVGFEDisplacementMapElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
115 FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value()));
116 FilterEffect* input2 = filterBuilder->getEffectById(AtomicString(m_in2->currentValue()->value()));
118 if (!input1 || !input2)
121 RefPtr<FilterEffect> effect = FEDisplacementMap::create(filter, m_xChannelSelector->currentValue()->enumValue(), m_yChannelSelector->currentValue()->enumValue(), m_scale->currentValue()->value());
122 FilterEffectVector& inputEffects = effect->inputEffects();
123 inputEffects.reserveCapacity(2);
124 inputEffects.append(input1);
125 inputEffects.append(input2);
126 return effect.release();