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SVGComponentTransferFunctionElement.cpp

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00001 /*
00002     Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
00003                   2004, 2005, 2006 Rob Buis <buis@kde.org>
00004 
00005     This file is part of the KDE project
00006 
00007     This library is free software; you can redistribute it and/or
00008     modify it under the terms of the GNU Library General Public
00009     License as published by the Free Software Foundation; either
00010     version 2 of the License, or (at your option) any later version.
00011 
00012     This library is distributed in the hope that it will be useful,
00013     but WITHOUT ANY WARRANTY; without even the implied warranty of
00014     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015     Library General Public License for more details.
00016 
00017     You should have received a copy of the GNU Library General Public License
00018     along with this library; see the file COPYING.LIB.  If not, write to
00019     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00020     Boston, MA 02110-1301, USA.
00021 */
00022 
00023 #include "config.h"
00024 
00025 #if ENABLE(SVG) && ENABLE(SVG_FILTERS)
00026 #include "SVGComponentTransferFunctionElement.h"
00027 
00028 #include "SVGFEComponentTransferElement.h"
00029 #include "SVGNames.h"
00030 #include "SVGNumberList.h"
00031 
00032 namespace WebCore {
00033 
00034 SVGComponentTransferFunctionElement::SVGComponentTransferFunctionElement(const QualifiedName& tagName, Document* doc)
00035     : SVGElement(tagName, doc)
00036     , m_type(SVG_FECOMPONENTTRANSFER_TYPE_UNKNOWN)
00037     , m_tableValues(SVGNumberList::create(SVGNames::tableValuesAttr))
00038     , m_slope(1.0f)
00039     , m_intercept(0.0f)
00040     , m_amplitude(1.0f)
00041     , m_exponent(1.0f)
00042     , m_offset(0.0f)
00043 {
00044 }
00045 
00046 SVGComponentTransferFunctionElement::~SVGComponentTransferFunctionElement()
00047 {
00048 }
00049 
00050 ANIMATED_PROPERTY_DEFINITIONS(SVGComponentTransferFunctionElement, int, Enumeration, enumeration, Type, type, SVGNames::typeAttr, m_type)
00051 ANIMATED_PROPERTY_DEFINITIONS(SVGComponentTransferFunctionElement, SVGNumberList*, NumberList, numberList, TableValues, tableValues, SVGNames::tableValuesAttr, m_tableValues.get())
00052 ANIMATED_PROPERTY_DEFINITIONS(SVGComponentTransferFunctionElement, float, Number, number, Slope, slope, SVGNames::slopeAttr, m_slope)
00053 ANIMATED_PROPERTY_DEFINITIONS(SVGComponentTransferFunctionElement, float, Number, number, Intercept, intercept, SVGNames::interceptAttr, m_intercept)
00054 ANIMATED_PROPERTY_DEFINITIONS(SVGComponentTransferFunctionElement, float, Number, number, Amplitude, amplitude, SVGNames::amplitudeAttr, m_amplitude)
00055 ANIMATED_PROPERTY_DEFINITIONS(SVGComponentTransferFunctionElement, float, Number, number, Exponent, exponent, SVGNames::exponentAttr, m_exponent)
00056 ANIMATED_PROPERTY_DEFINITIONS(SVGComponentTransferFunctionElement, float, Number, number, Offset, offset, SVGNames::offsetAttr, m_offset)
00057 
00058 void SVGComponentTransferFunctionElement::parseMappedAttribute(MappedAttribute* attr)
00059 {
00060     const String& value = attr->value();
00061     if (attr->name() == SVGNames::typeAttr)
00062     {
00063         if (value == "identity")
00064             setTypeBaseValue(SVG_FECOMPONENTTRANSFER_TYPE_IDENTITY);
00065         else if (value == "table")
00066             setTypeBaseValue(SVG_FECOMPONENTTRANSFER_TYPE_TABLE);
00067         else if (value == "discrete")
00068             setTypeBaseValue(SVG_FECOMPONENTTRANSFER_TYPE_DISCRETE);
00069         else if (value == "linear")
00070             setTypeBaseValue(SVG_FECOMPONENTTRANSFER_TYPE_LINEAR);
00071         else if (value == "gamma")
00072             setTypeBaseValue(SVG_FECOMPONENTTRANSFER_TYPE_GAMMA);
00073     }
00074     else if (attr->name() == SVGNames::tableValuesAttr)
00075         tableValuesBaseValue()->parse(value);
00076     else if (attr->name() == SVGNames::slopeAttr)
00077         setSlopeBaseValue(value.toFloat());
00078     else if (attr->name() == SVGNames::interceptAttr)
00079         setInterceptBaseValue(value.toFloat());
00080     else if (attr->name() == SVGNames::amplitudeAttr)
00081         setAmplitudeBaseValue(value.toFloat());
00082     else if (attr->name() == SVGNames::exponentAttr)
00083         setExponentBaseValue(value.toFloat());
00084     else if (attr->name() == SVGNames::offsetAttr)
00085         setOffsetBaseValue(value.toFloat());
00086     else
00087         SVGElement::parseMappedAttribute(attr);
00088 }
00089 
00090 SVGComponentTransferFunction SVGComponentTransferFunctionElement::transferFunction() const
00091 {
00092     SVGComponentTransferFunction func;
00093     func.type = (SVGComponentTransferType) type();
00094     func.slope = slope();
00095     func.intercept = intercept();
00096     func.amplitude = amplitude();
00097     func.exponent = exponent();
00098     func.offset = offset();
00099     SVGNumberList* numbers = tableValues();
00100 
00101     ExceptionCode ec = 0;
00102     unsigned int nr = numbers->numberOfItems();
00103     for (unsigned int i = 0; i < nr; i++)
00104         func.tableValues.append(numbers->getItem(i, ec));
00105     return func;
00106 }
00107 
00108 }
00109 
00110 // vim:ts=4:noet
00111 #endif // ENABLE(SVG)
00112 

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