src/svg/SVGFEColorMatrixElement.cpp

0001 /*
0002     Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
0003                   2004, 2005, 2006 Rob Buis <buis@kde.org>
0004
0005     This file is part of the KDE project
0006
0007     This library is free software; you can redistribute it and/or
0008     modify it under the terms of the GNU Library General Public
0009     License as published by the Free Software Foundation; either
0010     version 2 of the License, or (at your option) any later version.
0011
0012     This library is distributed in the hope that it will be useful,
0013     but WITHOUT ANY WARRANTY; without even the implied warranty of
0014     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0015     Library General Public License for more details.
0016
0017     You should have received a copy of the GNU Library General Public License
0018     along with this library; see the file COPYING.LIB.  If not, write to
0019     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
0020     Boston, MA 02110-1301, USA.
0021 */
0022
0023 #if ENABLE(SVG) && ENABLE(SVG_FILTERS)
0024 #include "SVGFEColorMatrixElement.h"
0025
0026 #include "SVGNames.h"
0027 #include "SVGNumberList.h"
0028 #include "SVGResourceFilter.h"
0029
0030 namespace WebCore
0031 {
0032
0033 SVGFEColorMatrixElement::SVGFEColorMatrixElement(const QualifiedName &tagName, Document *doc)
0034     : SVGFilterPrimitiveStandardAttributes(tagName, doc)
0035     , m_type(SVG_FECOLORMATRIX_TYPE_UNKNOWN)
0036     , m_values(SVGNumberList::create(SVGNames::valuesAttr))
0037     , m_filterEffect(0)
0038 {
0039 }
0040
0041 SVGFEColorMatrixElement::~SVGFEColorMatrixElement()
0042 {
0043     delete m_filterEffect;
0044 }
0045
0046 ANIMATED_PROPERTY_DEFINITIONS(SVGFEColorMatrixElement, String, String, string, In1, in1, SVGNames::inAttr, m_in1)
0047 ANIMATED_PROPERTY_DEFINITIONS(SVGFEColorMatrixElement, int, Enumeration, enumeration, Type, type, SVGNames::typeAttr, m_type)
0048 ANIMATED_PROPERTY_DEFINITIONS(SVGFEColorMatrixElement, SVGNumberList *, NumberList, numberList, Values, values, SVGNames::valuesAttr, m_values.get())
0049
0050 void SVGFEColorMatrixElement::parseMappedAttribute(MappedAttribute *attr)
0051 {
0052     const String &value = attr->value();
0053     if (attr->name() == SVGNames::typeAttr) {
0054         if (value == "matrix") {
0055             setTypeBaseValue(SVG_FECOLORMATRIX_TYPE_MATRIX);
0056         } else if (value == "saturate") {
0057             setTypeBaseValue(SVG_FECOLORMATRIX_TYPE_SATURATE);
0058         } else if (value == "hueRotate") {
0059             setTypeBaseValue(SVG_FECOLORMATRIX_TYPE_HUEROTATE);
0060         } else if (value == "luminanceToAlpha") {
0061             setTypeBaseValue(SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA);
0062         }
0063     } else if (attr->name() == SVGNames::inAttr) {
0064         setIn1BaseValue(value);
0065     } else if (attr->name() == SVGNames::valuesAttr) {
0066         valuesBaseValue()->parse(value);
0067     } else {
0068         SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
0069     }
0070 }
0071
0072 SVGFEColorMatrix *SVGFEColorMatrixElement::filterEffect(SVGResourceFilter *filter) const
0073 {
0074     if (!m_filterEffect) {
0075         m_filterEffect = new SVGFEColorMatrix(filter);
0076     }
0077
0078     m_filterEffect->setIn(in1());
0079     setStandardAttributes(m_filterEffect);
0080
0081     Vector<float> _values;
0082     SVGNumberList *numbers = values();
0083
0084     ExceptionCode ec = 0;
0085     unsigned int nr = numbers->numberOfItems();
0086     for (unsigned int i = 0; i < nr; i++) {
0087         _values.append(numbers->getItem(i, ec));
0088     }
0089
0090     m_filterEffect->setValues(_values);
0091     m_filterEffect->setType((SVGColorMatrixType) type());
0092
0093     return m_filterEffect;
0094 }
0095
0096 }
0097
0098 #endif // ENABLE(SVG)
0099