1/*
2 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB.  If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20
21#include "config.h"
22
23#if ENABLE(FILTERS)
24#include "SVGComponentTransferFunctionElement.h"
25
26#include "Attribute.h"
27#include "SVGElementInstance.h"
28#include "SVGFEComponentTransferElement.h"
29#include "SVGNames.h"
30#include "SVGNumberList.h"
31#include <wtf/NeverDestroyed.h>
32
33namespace WebCore {
34
35// Animated property definitions
36DEFINE_ANIMATED_ENUMERATION(SVGComponentTransferFunctionElement, SVGNames::typeAttr, Type, type, ComponentTransferType)
37DEFINE_ANIMATED_NUMBER_LIST(SVGComponentTransferFunctionElement, SVGNames::tableValuesAttr, TableValues, tableValues)
38DEFINE_ANIMATED_NUMBER(SVGComponentTransferFunctionElement, SVGNames::slopeAttr, Slope, slope)
39DEFINE_ANIMATED_NUMBER(SVGComponentTransferFunctionElement, SVGNames::interceptAttr, Intercept, intercept)
40DEFINE_ANIMATED_NUMBER(SVGComponentTransferFunctionElement, SVGNames::amplitudeAttr, Amplitude, amplitude)
41DEFINE_ANIMATED_NUMBER(SVGComponentTransferFunctionElement, SVGNames::exponentAttr, Exponent, exponent)
42DEFINE_ANIMATED_NUMBER(SVGComponentTransferFunctionElement, SVGNames::offsetAttr, Offset, offset)
43
44BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGComponentTransferFunctionElement)
45    REGISTER_LOCAL_ANIMATED_PROPERTY(type)
46    REGISTER_LOCAL_ANIMATED_PROPERTY(tableValues)
47    REGISTER_LOCAL_ANIMATED_PROPERTY(slope)
48    REGISTER_LOCAL_ANIMATED_PROPERTY(intercept)
49    REGISTER_LOCAL_ANIMATED_PROPERTY(amplitude)
50    REGISTER_LOCAL_ANIMATED_PROPERTY(exponent)
51    REGISTER_LOCAL_ANIMATED_PROPERTY(offset)
52END_REGISTER_ANIMATED_PROPERTIES
53
54SVGComponentTransferFunctionElement::SVGComponentTransferFunctionElement(const QualifiedName& tagName, Document& document)
55    : SVGElement(tagName, document)
56    , m_type(FECOMPONENTTRANSFER_TYPE_IDENTITY)
57    , m_slope(1)
58    , m_amplitude(1)
59    , m_exponent(1)
60{
61    registerAnimatedPropertiesForSVGComponentTransferFunctionElement();
62}
63
64bool SVGComponentTransferFunctionElement::isSupportedAttribute(const QualifiedName& attrName)
65{
66    static NeverDestroyed<HashSet<QualifiedName>> supportedAttributes;
67    if (supportedAttributes.get().isEmpty()) {
68        supportedAttributes.get().add(SVGNames::typeAttr);
69        supportedAttributes.get().add(SVGNames::tableValuesAttr);
70        supportedAttributes.get().add(SVGNames::slopeAttr);
71        supportedAttributes.get().add(SVGNames::interceptAttr);
72        supportedAttributes.get().add(SVGNames::amplitudeAttr);
73        supportedAttributes.get().add(SVGNames::exponentAttr);
74        supportedAttributes.get().add(SVGNames::offsetAttr);
75    }
76    return supportedAttributes.get().contains<SVGAttributeHashTranslator>(attrName);
77}
78
79void SVGComponentTransferFunctionElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
80{
81    if (!isSupportedAttribute(name)) {
82        SVGElement::parseAttribute(name, value);
83        return;
84    }
85
86    if (name == SVGNames::typeAttr) {
87        ComponentTransferType propertyValue = SVGPropertyTraits<ComponentTransferType>::fromString(value);
88        if (propertyValue > 0)
89            setTypeBaseValue(propertyValue);
90        return;
91    }
92
93    if (name == SVGNames::tableValuesAttr) {
94        SVGNumberList newList;
95        newList.parse(value);
96        detachAnimatedTableValuesListWrappers(newList.size());
97        setTableValuesBaseValue(newList);
98        return;
99    }
100
101    if (name == SVGNames::slopeAttr) {
102        setSlopeBaseValue(value.toFloat());
103        return;
104    }
105
106    if (name == SVGNames::interceptAttr) {
107        setInterceptBaseValue(value.toFloat());
108        return;
109    }
110
111    if (name == SVGNames::amplitudeAttr) {
112        setAmplitudeBaseValue(value.toFloat());
113        return;
114    }
115
116    if (name == SVGNames::exponentAttr) {
117        setExponentBaseValue(value.toFloat());
118        return;
119    }
120
121    if (name == SVGNames::offsetAttr) {
122        setOffsetBaseValue(value.toFloat());
123        return;
124    }
125
126    ASSERT_NOT_REACHED();
127}
128
129void SVGComponentTransferFunctionElement::svgAttributeChanged(const QualifiedName& attrName)
130{
131    if (!isSupportedAttribute(attrName)) {
132        SVGElement::svgAttributeChanged(attrName);
133        return;
134    }
135
136    SVGElementInstance::InvalidationGuard invalidationGuard(this);
137
138    invalidateFilterPrimitiveParent(this);
139}
140
141ComponentTransferFunction SVGComponentTransferFunctionElement::transferFunction() const
142{
143    ComponentTransferFunction func;
144    func.type = type();
145    func.slope = slope();
146    func.intercept = intercept();
147    func.amplitude = amplitude();
148    func.exponent = exponent();
149    func.offset = offset();
150    func.tableValues = tableValues();
151    return func;
152}
153
154}
155
156#endif
157