1 /*
2 Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 2004, 2005, 2006 Rob Buis <buis@kde.org>
4
5 This file is part of the KDE project
6
7 This library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public
9 License as published by the Free Software Foundation; either
10 version 2 of the License, or (at your option) any later version.
11
12 This library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Library General Public License for more details.
16
17 You should have received a copy of the GNU Library General Public License
18 along with this library; see the file COPYING.LIB. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA.
21 */
22
23 #include "config.h"
24
25 #if ENABLE(SVG) && ENABLE(FILTERS)
26 #include "SVGFECompositeElement.h"
27
28 #include "MappedAttribute.h"
29 #include "SVGNames.h"
30 #include "SVGResourceFilter.h"
31
32 namespace WebCore {
33
SVGFECompositeElement(const QualifiedName & tagName,Document * doc)34 SVGFECompositeElement::SVGFECompositeElement(const QualifiedName& tagName, Document* doc)
35 : SVGFilterPrimitiveStandardAttributes(tagName, doc)
36 , m_in1(this, SVGNames::inAttr)
37 , m_in2(this, SVGNames::in2Attr)
38 , m__operator(this, SVGNames::operatorAttr, FECOMPOSITE_OPERATOR_OVER)
39 , m_k1(this, SVGNames::k1Attr)
40 , m_k2(this, SVGNames::k2Attr)
41 , m_k3(this, SVGNames::k3Attr)
42 , m_k4(this, SVGNames::k4Attr)
43 {
44 }
45
~SVGFECompositeElement()46 SVGFECompositeElement::~SVGFECompositeElement()
47 {
48 }
49
parseMappedAttribute(MappedAttribute * attr)50 void SVGFECompositeElement::parseMappedAttribute(MappedAttribute *attr)
51 {
52 const String& value = attr->value();
53 if (attr->name() == SVGNames::operatorAttr) {
54 if (value == "over")
55 set_operatorBaseValue(FECOMPOSITE_OPERATOR_OVER);
56 else if (value == "in")
57 set_operatorBaseValue(FECOMPOSITE_OPERATOR_IN);
58 else if (value == "out")
59 set_operatorBaseValue(FECOMPOSITE_OPERATOR_OUT);
60 else if (value == "atop")
61 set_operatorBaseValue(FECOMPOSITE_OPERATOR_ATOP);
62 else if (value == "xor")
63 set_operatorBaseValue(FECOMPOSITE_OPERATOR_XOR);
64 else if (value == "arithmetic")
65 set_operatorBaseValue(FECOMPOSITE_OPERATOR_ARITHMETIC);
66 }
67 else if (attr->name() == SVGNames::inAttr)
68 setIn1BaseValue(value);
69 else if (attr->name() == SVGNames::in2Attr)
70 setIn2BaseValue(value);
71 else if (attr->name() == SVGNames::k1Attr)
72 setK1BaseValue(value.toFloat());
73 else if (attr->name() == SVGNames::k2Attr)
74 setK2BaseValue(value.toFloat());
75 else if (attr->name() == SVGNames::k3Attr)
76 setK3BaseValue(value.toFloat());
77 else if (attr->name() == SVGNames::k4Attr)
78 setK4BaseValue(value.toFloat());
79 else
80 SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
81 }
82
build(SVGResourceFilter * filterResource)83 bool SVGFECompositeElement::build(SVGResourceFilter* filterResource)
84 {
85 FilterEffect* input1 = filterResource->builder()->getEffectById(in1());
86 FilterEffect* input2 = filterResource->builder()->getEffectById(in2());
87
88 if (!input1 || !input2)
89 return false;
90
91 RefPtr<FilterEffect> effect = FEComposite::create(input1, input2, static_cast<CompositeOperationType>(_operator()),
92 k1(), k2(), k3(), k4());
93 filterResource->addFilterEffect(this, effect.release());
94
95 return true;
96 }
97
98 }
99
100 #endif // ENABLE(SVG)
101