1/*
2 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
4 * Copyright (C) 2018-2019 Apple Inc. All rights reserved.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 */
21
22#include "config.h"
23#include "SVGFECompositeElement.h"
24
25#include "FilterEffect.h"
26#include "SVGFilterBuilder.h"
27#include "SVGNames.h"
28#include <wtf/IsoMallocInlines.h>
29
30namespace WebCore {
31
32WTF_MAKE_ISO_ALLOCATED_IMPL(SVGFECompositeElement);
33
34inline SVGFECompositeElement::SVGFECompositeElement(const QualifiedName& tagName, Document& document)
35 : SVGFilterPrimitiveStandardAttributes(tagName, document)
36{
37 ASSERT(hasTagName(SVGNames::feCompositeTag));
38
39 static std::once_flag onceFlag;
40 std::call_once(onceFlag, [] {
41 PropertyRegistry::registerProperty<SVGNames::inAttr, &SVGFECompositeElement::m_in1>();
42 PropertyRegistry::registerProperty<SVGNames::in2Attr, &SVGFECompositeElement::m_in2>();
43 PropertyRegistry::registerProperty<SVGNames::operatorAttr, CompositeOperationType, &SVGFECompositeElement::m_svgOperator>();
44 PropertyRegistry::registerProperty<SVGNames::k1Attr, &SVGFECompositeElement::m_k1>();
45 PropertyRegistry::registerProperty<SVGNames::k2Attr, &SVGFECompositeElement::m_k2>();
46 PropertyRegistry::registerProperty<SVGNames::k3Attr, &SVGFECompositeElement::m_k3>();
47 PropertyRegistry::registerProperty<SVGNames::k4Attr, &SVGFECompositeElement::m_k4>();
48 });
49}
50
51Ref<SVGFECompositeElement> SVGFECompositeElement::create(const QualifiedName& tagName, Document& document)
52{
53 return adoptRef(*new SVGFECompositeElement(tagName, document));
54}
55
56void SVGFECompositeElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
57{
58 if (name == SVGNames::operatorAttr) {
59 CompositeOperationType propertyValue = SVGPropertyTraits<CompositeOperationType>::fromString(value);
60 if (propertyValue > 0)
61 m_svgOperator->setBaseValInternal<CompositeOperationType>(propertyValue);
62 return;
63 }
64
65 if (name == SVGNames::inAttr) {
66 m_in1->setBaseValInternal(value);
67 return;
68 }
69
70 if (name == SVGNames::in2Attr) {
71 m_in2->setBaseValInternal(value);
72 return;
73 }
74
75 if (name == SVGNames::k1Attr) {
76 m_k1->setBaseValInternal(value.toFloat());
77 return;
78 }
79
80 if (name == SVGNames::k2Attr) {
81 m_k2->setBaseValInternal(value.toFloat());
82 return;
83 }
84
85 if (name == SVGNames::k3Attr) {
86 m_k3->setBaseValInternal(value.toFloat());
87 return;
88 }
89
90 if (name == SVGNames::k4Attr) {
91 m_k4->setBaseValInternal(value.toFloat());
92 return;
93 }
94
95 SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
96}
97
98bool SVGFECompositeElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
99{
100 FEComposite* composite = static_cast<FEComposite*>(effect);
101 if (attrName == SVGNames::operatorAttr)
102 return composite->setOperation(svgOperator());
103 if (attrName == SVGNames::k1Attr)
104 return composite->setK1(k1());
105 if (attrName == SVGNames::k2Attr)
106 return composite->setK2(k2());
107 if (attrName == SVGNames::k3Attr)
108 return composite->setK3(k3());
109 if (attrName == SVGNames::k4Attr)
110 return composite->setK4(k4());
111
112 ASSERT_NOT_REACHED();
113 return false;
114}
115
116
117void SVGFECompositeElement::svgAttributeChanged(const QualifiedName& attrName)
118{
119 if (attrName == SVGNames::operatorAttr || attrName == SVGNames::k1Attr || attrName == SVGNames::k2Attr || attrName == SVGNames::k3Attr || attrName == SVGNames::k4Attr) {
120 InstanceInvalidationGuard guard(*this);
121 primitiveAttributeChanged(attrName);
122 return;
123 }
124
125 if (attrName == SVGNames::inAttr || attrName == SVGNames::in2Attr) {
126 InstanceInvalidationGuard guard(*this);
127 invalidate();
128 return;
129 }
130
131 SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
132}
133
134RefPtr<FilterEffect> SVGFECompositeElement::build(SVGFilterBuilder* filterBuilder, Filter& filter) const
135{
136 auto input1 = filterBuilder->getEffectById(in1());
137 auto input2 = filterBuilder->getEffectById(in2());
138
139 if (!input1 || !input2)
140 return nullptr;
141
142 auto effect = FEComposite::create(filter, svgOperator(), k1(), k2(), k3(), k4());
143 FilterEffectVector& inputEffects = effect->inputEffects();
144 inputEffects.reserveCapacity(2);
145 inputEffects.append(input1);
146 inputEffects.append(input2);
147 return effect;
148}
149
150}
151