1/*
2    Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3                  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 "SVGFECompositeElement.h"
25
26#include "MappedAttribute.h"
27#include "SVGNames.h"
28#include "SVGResourceFilter.h"
29
30namespace WebCore {
31
32SVGFECompositeElement::SVGFECompositeElement(const QualifiedName& tagName, Document* doc)
33    : SVGFilterPrimitiveStandardAttributes(tagName, doc)
34    , m__operator(FECOMPOSITE_OPERATOR_OVER)
35{
36}
37
38SVGFECompositeElement::~SVGFECompositeElement()
39{
40}
41
42void SVGFECompositeElement::parseMappedAttribute(MappedAttribute *attr)
43{
44    const String& value = attr->value();
45    if (attr->name() == SVGNames::operatorAttr) {
46        if (value == "over")
47            set_operatorBaseValue(FECOMPOSITE_OPERATOR_OVER);
48        else if (value == "in")
49            set_operatorBaseValue(FECOMPOSITE_OPERATOR_IN);
50        else if (value == "out")
51            set_operatorBaseValue(FECOMPOSITE_OPERATOR_OUT);
52        else if (value == "atop")
53            set_operatorBaseValue(FECOMPOSITE_OPERATOR_ATOP);
54        else if (value == "xor")
55            set_operatorBaseValue(FECOMPOSITE_OPERATOR_XOR);
56        else if (value == "arithmetic")
57            set_operatorBaseValue(FECOMPOSITE_OPERATOR_ARITHMETIC);
58    } else if (attr->name() == SVGNames::inAttr)
59        setIn1BaseValue(value);
60    else if (attr->name() == SVGNames::in2Attr)
61        setIn2BaseValue(value);
62    else if (attr->name() == SVGNames::k1Attr)
63        setK1BaseValue(value.toFloat());
64    else if (attr->name() == SVGNames::k2Attr)
65        setK2BaseValue(value.toFloat());
66    else if (attr->name() == SVGNames::k3Attr)
67        setK3BaseValue(value.toFloat());
68    else if (attr->name() == SVGNames::k4Attr)
69        setK4BaseValue(value.toFloat());
70    else
71        SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
72}
73
74void SVGFECompositeElement::synchronizeProperty(const QualifiedName& attrName)
75{
76    SVGFilterPrimitiveStandardAttributes::synchronizeProperty(attrName);
77
78    if (attrName == anyQName()) {
79        synchronize_operator();
80        synchronizeIn1();
81        synchronizeIn2();
82        synchronizeK1();
83        synchronizeK2();
84        synchronizeK3();
85        synchronizeK4();
86        return;
87    }
88
89    if (attrName == SVGNames::operatorAttr)
90        synchronize_operator();
91    else if (attrName == SVGNames::inAttr)
92        synchronizeIn1();
93    else if (attrName == SVGNames::in2Attr)
94        synchronizeIn2();
95    else if (attrName == SVGNames::k1Attr)
96        synchronizeK1();
97    else if (attrName == SVGNames::k2Attr)
98        synchronizeK2();
99    else if (attrName == SVGNames::k3Attr)
100        synchronizeK3();
101    else if (attrName == SVGNames::k4Attr)
102        synchronizeK4();
103}
104
105bool SVGFECompositeElement::build(SVGResourceFilter* filterResource)
106{
107    FilterEffect* input1 = filterResource->builder()->getEffectById(in1());
108    FilterEffect* input2 = filterResource->builder()->getEffectById(in2());
109
110    if (!input1 || !input2)
111        return false;
112
113    RefPtr<FilterEffect> effect = FEComposite::create(input1, input2, static_cast<CompositeOperationType>(_operator()),
114                                        k1(), k2(), k3(), k4());
115    filterResource->addFilterEffect(this, effect.release());
116
117    return true;
118}
119
120}
121
122#endif // ENABLE(SVG)
123