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 "SVGFETurbulenceElement.h"
24
25#include "SVGNames.h"
26#include "SVGParserUtilities.h"
27#include <wtf/IsoMallocInlines.h>
28
29namespace WebCore {
30
31WTF_MAKE_ISO_ALLOCATED_IMPL(SVGFETurbulenceElement);
32
33inline SVGFETurbulenceElement::SVGFETurbulenceElement(const QualifiedName& tagName, Document& document)
34 : SVGFilterPrimitiveStandardAttributes(tagName, document)
35{
36 ASSERT(hasTagName(SVGNames::feTurbulenceTag));
37
38 static std::once_flag onceFlag;
39 std::call_once(onceFlag, [] {
40 PropertyRegistry::registerProperty<SVGNames::baseFrequencyAttr, &SVGFETurbulenceElement::m_baseFrequencyX, &SVGFETurbulenceElement::m_baseFrequencyY>();
41 PropertyRegistry::registerProperty<SVGNames::numOctavesAttr, &SVGFETurbulenceElement::m_numOctaves>();
42 PropertyRegistry::registerProperty<SVGNames::seedAttr, &SVGFETurbulenceElement::m_seed>();
43 PropertyRegistry::registerProperty<SVGNames::stitchTilesAttr, SVGStitchOptions, &SVGFETurbulenceElement::m_stitchTiles>();
44 PropertyRegistry::registerProperty<SVGNames::typeAttr, TurbulenceType, &SVGFETurbulenceElement::m_type>();
45 });
46}
47
48Ref<SVGFETurbulenceElement> SVGFETurbulenceElement::create(const QualifiedName& tagName, Document& document)
49{
50 return adoptRef(*new SVGFETurbulenceElement(tagName, document));
51}
52
53void SVGFETurbulenceElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
54{
55 if (name == SVGNames::typeAttr) {
56 TurbulenceType propertyValue = SVGPropertyTraits<TurbulenceType>::fromString(value);
57 if (propertyValue != TurbulenceType::Unknown)
58 m_type->setBaseValInternal<TurbulenceType>(propertyValue);
59 return;
60 }
61
62 if (name == SVGNames::stitchTilesAttr) {
63 SVGStitchOptions propertyValue = SVGPropertyTraits<SVGStitchOptions>::fromString(value);
64 if (propertyValue > 0)
65 m_stitchTiles->setBaseValInternal<SVGStitchOptions>(propertyValue);
66 return;
67 }
68
69 if (name == SVGNames::baseFrequencyAttr) {
70 float x, y;
71 if (parseNumberOptionalNumber(value, x, y)) {
72 m_baseFrequencyX->setBaseValInternal(x);
73 m_baseFrequencyY->setBaseValInternal(y);
74 }
75 return;
76 }
77
78 if (name == SVGNames::seedAttr) {
79 m_seed->setBaseValInternal(value.toFloat());
80 return;
81 }
82
83 if (name == SVGNames::numOctavesAttr) {
84 m_numOctaves->setBaseValInternal(value.string().toUIntStrict());
85 return;
86 }
87
88 SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
89}
90
91bool SVGFETurbulenceElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
92{
93 FETurbulence* turbulence = static_cast<FETurbulence*>(effect);
94 if (attrName == SVGNames::typeAttr)
95 return turbulence->setType(type());
96 if (attrName == SVGNames::stitchTilesAttr)
97 return turbulence->setStitchTiles(stitchTiles());
98 if (attrName == SVGNames::baseFrequencyAttr)
99 return (turbulence->setBaseFrequencyX(baseFrequencyX()) || turbulence->setBaseFrequencyY(baseFrequencyY()));
100 if (attrName == SVGNames::seedAttr)
101 return turbulence->setSeed(seed());
102 if (attrName == SVGNames::numOctavesAttr)
103 return turbulence->setNumOctaves(numOctaves());
104
105 ASSERT_NOT_REACHED();
106 return false;
107}
108
109void SVGFETurbulenceElement::svgAttributeChanged(const QualifiedName& attrName)
110{
111 if (PropertyRegistry::isKnownAttribute(attrName)) {
112 InstanceInvalidationGuard guard(*this);
113 primitiveAttributeChanged(attrName);
114 return;
115 }
116
117 SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
118}
119
120RefPtr<FilterEffect> SVGFETurbulenceElement::build(SVGFilterBuilder*, Filter& filter) const
121{
122 if (baseFrequencyX() < 0 || baseFrequencyY() < 0)
123 return nullptr;
124 return FETurbulence::create(filter, type(), baseFrequencyX(), baseFrequencyY(), numOctaves(), seed(), stitchTiles() == SVG_STITCHTYPE_STITCH);
125}
126
127}
128