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(SVG) && ENABLE(FILTERS)
24#include "SVGFEBlendElement.h"
25
26#include "Attribute.h"
27#include "FilterEffect.h"
28#include "SVGFilterBuilder.h"
29#include "SVGNames.h"
30
31namespace WebCore {
32
33// Animated property definitions
34DEFINE_ANIMATED_STRING(SVGFEBlendElement, SVGNames::inAttr, In1, in1)
35DEFINE_ANIMATED_STRING(SVGFEBlendElement, SVGNames::in2Attr, In2, in2)
36DEFINE_ANIMATED_ENUMERATION(SVGFEBlendElement, SVGNames::modeAttr, Mode, mode)
37
38inline SVGFEBlendElement::SVGFEBlendElement(const QualifiedName& tagName, Document* document)
39    : SVGFilterPrimitiveStandardAttributes(tagName, document)
40    , m_mode(FEBLEND_MODE_NORMAL)
41{
42}
43
44PassRefPtr<SVGFEBlendElement> SVGFEBlendElement::create(const QualifiedName& tagName, Document* document)
45{
46    return adoptRef(new SVGFEBlendElement(tagName, document));
47}
48
49void SVGFEBlendElement::parseMappedAttribute(Attribute* attr)
50{
51    const String& value = attr->value();
52    if (attr->name() == SVGNames::modeAttr) {
53        if (value == "normal")
54            setModeBaseValue(FEBLEND_MODE_NORMAL);
55        else if (value == "multiply")
56            setModeBaseValue(FEBLEND_MODE_MULTIPLY);
57        else if (value == "screen")
58            setModeBaseValue(FEBLEND_MODE_SCREEN);
59        else if (value == "darken")
60            setModeBaseValue(FEBLEND_MODE_DARKEN);
61        else if (value == "lighten")
62            setModeBaseValue(FEBLEND_MODE_LIGHTEN);
63    } else if (attr->name() == SVGNames::inAttr)
64        setIn1BaseValue(value);
65    else if (attr->name() == SVGNames::in2Attr)
66        setIn2BaseValue(value);
67    else
68        SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
69}
70
71bool SVGFEBlendElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
72{
73    FEBlend* blend = static_cast<FEBlend*>(effect);
74    if (attrName == SVGNames::modeAttr)
75        return blend->setBlendMode(static_cast<BlendModeType>(mode()));
76
77    ASSERT_NOT_REACHED();
78    return false;
79}
80
81void SVGFEBlendElement::svgAttributeChanged(const QualifiedName& attrName)
82{
83    SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
84
85    if (attrName == SVGNames::modeAttr)
86        primitiveAttributeChanged(attrName);
87
88    if (attrName == SVGNames::inAttr
89        || attrName == SVGNames::in2Attr)
90        invalidate();
91}
92
93void SVGFEBlendElement::synchronizeProperty(const QualifiedName& attrName)
94{
95    SVGFilterPrimitiveStandardAttributes::synchronizeProperty(attrName);
96
97    if (attrName == anyQName()) {
98        synchronizeMode();
99        synchronizeIn1();
100        synchronizeIn2();
101        return;
102    }
103
104    if (attrName == SVGNames::modeAttr)
105        synchronizeMode();
106    else if (attrName == SVGNames::inAttr)
107        synchronizeIn1();
108    else if (attrName == SVGNames::in2Attr)
109        synchronizeIn2();
110}
111
112AttributeToPropertyTypeMap& SVGFEBlendElement::attributeToPropertyTypeMap()
113{
114    DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, s_attributeToPropertyTypeMap, ());
115    return s_attributeToPropertyTypeMap;
116}
117
118void SVGFEBlendElement::fillAttributeToPropertyTypeMap()
119{
120    AttributeToPropertyTypeMap& attributeToPropertyTypeMap = this->attributeToPropertyTypeMap();
121
122    SVGFilterPrimitiveStandardAttributes::fillPassedAttributeToPropertyTypeMap(attributeToPropertyTypeMap);
123    attributeToPropertyTypeMap.set(SVGNames::inAttr, AnimatedString);
124    attributeToPropertyTypeMap.set(SVGNames::in2Attr, AnimatedString);
125    attributeToPropertyTypeMap.set(SVGNames::modeAttr, AnimatedEnumeration);
126}
127
128PassRefPtr<FilterEffect> SVGFEBlendElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
129{
130    FilterEffect* input1 = filterBuilder->getEffectById(in1());
131    FilterEffect* input2 = filterBuilder->getEffectById(in2());
132
133    if (!input1 || !input2)
134        return 0;
135
136    RefPtr<FilterEffect> effect = FEBlend::create(filter, static_cast<BlendModeType>(mode()));
137    FilterEffectVector& inputEffects = effect->inputEffects();
138    inputEffects.reserveCapacity(2);
139    inputEffects.append(input1);
140    inputEffects.append(input2);
141    return effect.release();
142}
143
144}
145
146#endif // ENABLE(SVG)
147
148// vim:ts=4:noet
149