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 "SVGFEColorMatrixElement.h"
27
28 #include "MappedAttribute.h"
29 #include "SVGNames.h"
30 #include "SVGNumberList.h"
31 #include "SVGResourceFilter.h"
32
33 namespace WebCore {
34
SVGFEColorMatrixElement(const QualifiedName & tagName,Document * doc)35 SVGFEColorMatrixElement::SVGFEColorMatrixElement(const QualifiedName& tagName, Document* doc)
36 : SVGFilterPrimitiveStandardAttributes(tagName, doc)
37 , m_in1(this, SVGNames::inAttr)
38 , m_type(this, SVGNames::typeAttr, FECOLORMATRIX_TYPE_UNKNOWN)
39 , m_values(this, SVGNames::valuesAttr, SVGNumberList::create(SVGNames::valuesAttr))
40 {
41 }
42
~SVGFEColorMatrixElement()43 SVGFEColorMatrixElement::~SVGFEColorMatrixElement()
44 {
45 }
46
parseMappedAttribute(MappedAttribute * attr)47 void SVGFEColorMatrixElement::parseMappedAttribute(MappedAttribute* attr)
48 {
49 const String& value = attr->value();
50 if (attr->name() == SVGNames::typeAttr) {
51 if (value == "matrix")
52 setTypeBaseValue(FECOLORMATRIX_TYPE_MATRIX);
53 else if (value == "saturate")
54 setTypeBaseValue(FECOLORMATRIX_TYPE_SATURATE);
55 else if (value == "hueRotate")
56 setTypeBaseValue(FECOLORMATRIX_TYPE_HUEROTATE);
57 else if (value == "luminanceToAlpha")
58 setTypeBaseValue(FECOLORMATRIX_TYPE_LUMINANCETOALPHA);
59 }
60 else if (attr->name() == SVGNames::inAttr)
61 setIn1BaseValue(value);
62 else if (attr->name() == SVGNames::valuesAttr)
63 valuesBaseValue()->parse(value);
64 else
65 SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
66 }
67
build(SVGResourceFilter * filterResource)68 bool SVGFEColorMatrixElement::build(SVGResourceFilter* filterResource)
69 {
70 FilterEffect* input1 = filterResource->builder()->getEffectById(in1());
71
72 if (!input1)
73 return false;
74
75 Vector<float> _values;
76 SVGNumberList* numbers = values();
77
78 ExceptionCode ec = 0;
79 unsigned int nr = numbers->numberOfItems();
80 for (unsigned int i = 0;i < nr;i++)
81 _values.append(numbers->getItem(i, ec));
82
83 RefPtr<FilterEffect> effect = FEColorMatrix::create(input1, static_cast<ColorMatrixType>(type()), _values);
84 filterResource->addFilterEffect(this, effect.release());
85
86 return true;
87 }
88
89 } //namespace WebCore
90
91 #endif // ENABLE(SVG)
92