2 * Copyright (C) Research In Motion Limited 2011. All rights reserved.
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/SVGFEDropShadowElement.h"
25 #include "core/rendering/style/RenderStyle.h"
26 #include "core/rendering/style/SVGRenderStyle.h"
27 #include "core/svg/SVGElementInstance.h"
28 #include "core/svg/SVGParserUtilities.h"
29 #include "core/svg/graphics/filters/SVGFilterBuilder.h"
33 // Animated property definitions
35 BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFEDropShadowElement)
36 REGISTER_PARENT_ANIMATED_PROPERTIES(SVGFilterPrimitiveStandardAttributes)
37 END_REGISTER_ANIMATED_PROPERTIES
39 inline SVGFEDropShadowElement::SVGFEDropShadowElement(Document& document)
40 : SVGFilterPrimitiveStandardAttributes(SVGNames::feDropShadowTag, document)
41 , m_dx(SVGAnimatedNumber::create(this, SVGNames::dxAttr, SVGNumber::create(2)))
42 , m_dy(SVGAnimatedNumber::create(this, SVGNames::dyAttr, SVGNumber::create(2)))
43 , m_stdDeviation(SVGAnimatedNumberOptionalNumber::create(this, SVGNames::stdDeviationAttr, 2, 2))
44 , m_in1(SVGAnimatedString::create(this, SVGNames::inAttr, SVGString::create()))
46 ScriptWrappable::init(this);
48 addToPropertyMap(m_dx);
49 addToPropertyMap(m_dy);
50 addToPropertyMap(m_stdDeviation);
51 addToPropertyMap(m_in1);
52 registerAnimatedPropertiesForSVGFEDropShadowElement();
55 PassRefPtr<SVGFEDropShadowElement> SVGFEDropShadowElement::create(Document& document)
57 return adoptRef(new SVGFEDropShadowElement(document));
60 void SVGFEDropShadowElement::setStdDeviation(float x, float y)
62 stdDeviationX()->baseValue()->setValue(x);
63 stdDeviationY()->baseValue()->setValue(y);
67 bool SVGFEDropShadowElement::isSupportedAttribute(const QualifiedName& attrName)
69 DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
70 if (supportedAttributes.isEmpty()) {
71 supportedAttributes.add(SVGNames::inAttr);
72 supportedAttributes.add(SVGNames::dxAttr);
73 supportedAttributes.add(SVGNames::dyAttr);
74 supportedAttributes.add(SVGNames::stdDeviationAttr);
76 return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
79 void SVGFEDropShadowElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
81 if (!isSupportedAttribute(name)) {
82 SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
86 SVGParsingError parseError = NoError;
88 if (name == SVGNames::inAttr)
89 m_in1->setBaseValueAsString(value, parseError);
90 else if (name == SVGNames::dxAttr)
91 m_dx->setBaseValueAsString(value, parseError);
92 else if (name == SVGNames::dyAttr)
93 m_dy->setBaseValueAsString(value, parseError);
94 else if (name == SVGNames::stdDeviationAttr)
95 m_stdDeviation->setBaseValueAsString(value, parseError);
99 reportAttributeParsingError(parseError, name, value);
102 void SVGFEDropShadowElement::svgAttributeChanged(const QualifiedName& attrName)
104 if (!isSupportedAttribute(attrName)) {
105 SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
109 SVGElementInstance::InvalidationGuard invalidationGuard(this);
111 if (attrName == SVGNames::inAttr
112 || attrName == SVGNames::stdDeviationAttr
113 || attrName == SVGNames::dxAttr
114 || attrName == SVGNames::dyAttr) {
119 ASSERT_NOT_REACHED();
122 PassRefPtr<FilterEffect> SVGFEDropShadowElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
124 RenderObject* renderer = this->renderer();
128 if (stdDeviationX()->currentValue()->value() < 0 || stdDeviationY()->currentValue()->value() < 0)
131 ASSERT(renderer->style());
132 const SVGRenderStyle* svgStyle = renderer->style()->svgStyle();
134 Color color = svgStyle->floodColor();
135 float opacity = svgStyle->floodOpacity();
137 FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value()));
141 RefPtr<FilterEffect> effect = FEDropShadow::create(filter, stdDeviationX()->currentValue()->value(), stdDeviationY()->currentValue()->value(), m_dx->currentValue()->value(), m_dy->currentValue()->value(), color, opacity);
142 effect->inputEffects().append(input1);
143 return effect.release();