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
31 namespace WebCore {
32
33 // Animated property definitions
DEFINE_ANIMATED_STRING(SVGFEBlendElement,SVGNames::inAttr,In1,in1)34 DEFINE_ANIMATED_STRING(SVGFEBlendElement, SVGNames::inAttr, In1, in1)
35 DEFINE_ANIMATED_STRING(SVGFEBlendElement, SVGNames::in2Attr, In2, in2)
36 DEFINE_ANIMATED_ENUMERATION(SVGFEBlendElement, SVGNames::modeAttr, Mode, mode)
37
38 inline SVGFEBlendElement::SVGFEBlendElement(const QualifiedName& tagName, Document* document)
39 : SVGFilterPrimitiveStandardAttributes(tagName, document)
40 , m_mode(FEBLEND_MODE_NORMAL)
41 {
42 }
43
create(const QualifiedName & tagName,Document * document)44 PassRefPtr<SVGFEBlendElement> SVGFEBlendElement::create(const QualifiedName& tagName, Document* document)
45 {
46 return adoptRef(new SVGFEBlendElement(tagName, document));
47 }
48
parseMappedAttribute(Attribute * attr)49 void 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
setFilterEffectAttribute(FilterEffect * effect,const QualifiedName & attrName)71 bool 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
svgAttributeChanged(const QualifiedName & attrName)81 void 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
synchronizeProperty(const QualifiedName & attrName)93 void 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
attributeToPropertyTypeMap()112 AttributeToPropertyTypeMap& SVGFEBlendElement::attributeToPropertyTypeMap()
113 {
114 DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, s_attributeToPropertyTypeMap, ());
115 return s_attributeToPropertyTypeMap;
116 }
117
fillAttributeToPropertyTypeMap()118 void 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
build(SVGFilterBuilder * filterBuilder,Filter * filter)128 PassRefPtr<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