2 * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
4 * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
5 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
6 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public License
19 * along with this library; see the file COPYING.LIB. If not, write to
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
26 #include "core/svg/SVGFilterElement.h"
28 #include "XLinkNames.h"
29 #include "core/rendering/svg/RenderSVGResourceFilter.h"
30 #include "core/svg/SVGElementInstance.h"
31 #include "core/svg/SVGParserUtilities.h"
35 // Animated property definitions
36 DEFINE_ANIMATED_ENUMERATION(SVGFilterElement, SVGNames::filterUnitsAttr, FilterUnits, filterUnits, SVGUnitTypes::SVGUnitType)
37 DEFINE_ANIMATED_ENUMERATION(SVGFilterElement, SVGNames::primitiveUnitsAttr, PrimitiveUnits, primitiveUnits, SVGUnitTypes::SVGUnitType)
39 BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFilterElement)
40 REGISTER_LOCAL_ANIMATED_PROPERTY(filterUnits)
41 REGISTER_LOCAL_ANIMATED_PROPERTY(primitiveUnits)
42 END_REGISTER_ANIMATED_PROPERTIES
44 inline SVGFilterElement::SVGFilterElement(Document& document)
45 : SVGElement(SVGNames::filterTag, document)
46 , SVGURIReference(this)
47 , m_x(SVGAnimatedLength::create(this, SVGNames::xAttr, SVGLength::create(LengthModeWidth)))
48 , m_y(SVGAnimatedLength::create(this, SVGNames::yAttr, SVGLength::create(LengthModeHeight)))
49 , m_width(SVGAnimatedLength::create(this, SVGNames::widthAttr, SVGLength::create(LengthModeWidth)))
50 , m_height(SVGAnimatedLength::create(this, SVGNames::heightAttr, SVGLength::create(LengthModeHeight)))
51 , m_filterRes(SVGAnimatedIntegerOptionalInteger::create(this, SVGNames::filterResAttr))
52 , m_filterUnits(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
53 , m_primitiveUnits(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE)
55 ScriptWrappable::init(this);
57 // Spec: If the x/y attribute is not specified, the effect is as if a value of "-10%" were specified.
58 // Spec: If the width/height attribute is not specified, the effect is as if a value of "120%" were specified.
59 m_x->setDefaultValueAsString("-10%");
60 m_y->setDefaultValueAsString("-10%");
61 m_width->setDefaultValueAsString("120%");
62 m_height->setDefaultValueAsString("120%");
64 addToPropertyMap(m_x);
65 addToPropertyMap(m_y);
66 addToPropertyMap(m_width);
67 addToPropertyMap(m_height);
68 addToPropertyMap(m_filterRes);
69 registerAnimatedPropertiesForSVGFilterElement();
72 PassRefPtr<SVGFilterElement> SVGFilterElement::create(Document& document)
74 return adoptRef(new SVGFilterElement(document));
77 void SVGFilterElement::setFilterRes(unsigned x, unsigned y)
79 filterResX()->baseValue()->setValue(x);
80 filterResY()->baseValue()->setValue(y);
82 invalidateSVGAttributes();
83 svgAttributeChanged(SVGNames::filterResAttr);
86 bool SVGFilterElement::isSupportedAttribute(const QualifiedName& attrName)
88 DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
89 if (supportedAttributes.isEmpty()) {
90 SVGURIReference::addSupportedAttributes(supportedAttributes);
91 supportedAttributes.add(SVGNames::filterUnitsAttr);
92 supportedAttributes.add(SVGNames::primitiveUnitsAttr);
93 supportedAttributes.add(SVGNames::xAttr);
94 supportedAttributes.add(SVGNames::yAttr);
95 supportedAttributes.add(SVGNames::widthAttr);
96 supportedAttributes.add(SVGNames::heightAttr);
97 supportedAttributes.add(SVGNames::filterResAttr);
99 return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
102 void SVGFilterElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
104 SVGParsingError parseError = NoError;
106 if (!isSupportedAttribute(name)) {
107 SVGElement::parseAttribute(name, value);
108 } else if (name == SVGNames::filterUnitsAttr) {
109 SVGUnitTypes::SVGUnitType propertyValue = SVGPropertyTraits<SVGUnitTypes::SVGUnitType>::fromString(value);
110 if (propertyValue > 0)
111 setFilterUnitsBaseValue(propertyValue);
112 } else if (name == SVGNames::primitiveUnitsAttr) {
113 SVGUnitTypes::SVGUnitType propertyValue = SVGPropertyTraits<SVGUnitTypes::SVGUnitType>::fromString(value);
114 if (propertyValue > 0)
115 setPrimitiveUnitsBaseValue(propertyValue);
116 } else if (name == SVGNames::xAttr) {
117 m_x->setBaseValueAsString(value, AllowNegativeLengths, parseError);
118 } else if (name == SVGNames::yAttr) {
119 m_y->setBaseValueAsString(value, AllowNegativeLengths, parseError);
120 } else if (name == SVGNames::widthAttr) {
121 m_width->setBaseValueAsString(value, ForbidNegativeLengths, parseError);
122 } else if (name == SVGNames::heightAttr) {
123 m_height->setBaseValueAsString(value, ForbidNegativeLengths, parseError);
124 } else if (name == SVGNames::filterResAttr) {
125 m_filterRes->setBaseValueAsString(value, parseError);
126 } else if (SVGURIReference::parseAttribute(name, value, parseError)) {
128 ASSERT_NOT_REACHED();
131 reportAttributeParsingError(parseError, name, value);
134 void SVGFilterElement::svgAttributeChanged(const QualifiedName& attrName)
136 if (!isSupportedAttribute(attrName)) {
137 SVGElement::svgAttributeChanged(attrName);
141 SVGElementInstance::InvalidationGuard invalidationGuard(this);
143 if (attrName == SVGNames::xAttr
144 || attrName == SVGNames::yAttr
145 || attrName == SVGNames::widthAttr
146 || attrName == SVGNames::heightAttr)
147 updateRelativeLengthsInformation();
149 RenderSVGResourceContainer* renderer = toRenderSVGResourceContainer(this->renderer());
151 renderer->invalidateCacheAndMarkForLayout();
154 void SVGFilterElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
156 SVGElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
161 if (RenderObject* object = renderer())
162 object->setNeedsLayout();
165 RenderObject* SVGFilterElement::createRenderer(RenderStyle*)
167 RenderSVGResourceFilter* renderer = new RenderSVGResourceFilter(this);
169 HashSet<RefPtr<Node> >::iterator layerEnd = m_clientsToAdd.end();
170 for (HashSet<RefPtr<Node> >::iterator it = m_clientsToAdd.begin(); it != layerEnd; ++it)
171 renderer->addClientRenderLayer((*it).get());
172 m_clientsToAdd.clear();
177 bool SVGFilterElement::selfHasRelativeLengths() const
179 return m_x->currentValue()->isRelative()
180 || m_y->currentValue()->isRelative()
181 || m_width->currentValue()->isRelative()
182 || m_height->currentValue()->isRelative();
185 void SVGFilterElement::addClient(Node* client)
188 m_clientsToAdd.add(client);
191 void SVGFilterElement::removeClient(Node* client)
194 m_clientsToAdd.remove(client);