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SVGEllipseElement.cpp

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00001 /*
00002     Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
00003                   2004, 2005, 2006, 2007 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 #include "wtf/Platform.h"
00025 
00026 #if ENABLE(SVG)
00027 #include "SVGEllipseElement.h"
00028 
00029 #include "FloatPoint.h"
00030 #include "RenderPath.h"
00031 #include "SVGLength.h"
00032 #include "SVGNames.h"
00033 
00034 namespace WebCore {
00035 
00036 SVGEllipseElement::SVGEllipseElement(const QualifiedName& tagName, Document* doc)
00037     : SVGStyledTransformableElement(tagName, doc)
00038     , SVGTests()
00039     , SVGLangSpace()
00040     , SVGExternalResourcesRequired()
00041     , m_cx(this, LengthModeWidth)
00042     , m_cy(this, LengthModeHeight)
00043     , m_rx(this, LengthModeWidth)
00044     , m_ry(this, LengthModeHeight)
00045 {
00046 }    
00047 
00048 SVGEllipseElement::~SVGEllipseElement()
00049 {
00050 }
00051 
00052 ANIMATED_PROPERTY_DEFINITIONS(SVGEllipseElement, SVGLength, Length, length, Cx, cx, SVGNames::cxAttr, m_cx)
00053 ANIMATED_PROPERTY_DEFINITIONS(SVGEllipseElement, SVGLength, Length, length, Cy, cy, SVGNames::cyAttr, m_cy)
00054 ANIMATED_PROPERTY_DEFINITIONS(SVGEllipseElement, SVGLength, Length, length, Rx, rx, SVGNames::rxAttr, m_rx)
00055 ANIMATED_PROPERTY_DEFINITIONS(SVGEllipseElement, SVGLength, Length, length, Ry, ry, SVGNames::ryAttr, m_ry)
00056 
00057 void SVGEllipseElement::parseMappedAttribute(MappedAttribute* attr)
00058 {
00059     if (attr->name() == SVGNames::cxAttr)
00060         setCxBaseValue(SVGLength(this, LengthModeWidth, attr->value()));
00061     else if (attr->name() == SVGNames::cyAttr)
00062         setCyBaseValue(SVGLength(this, LengthModeHeight, attr->value()));
00063     else if (attr->name() == SVGNames::rxAttr) {
00064         setRxBaseValue(SVGLength(this, LengthModeWidth, attr->value()));
00065         if (rx().value() < 0.0)
00066             document()->accessSVGExtensions()->reportError("A negative value for ellipse <rx> is not allowed");
00067     } else if (attr->name() == SVGNames::ryAttr) {
00068         setRyBaseValue(SVGLength(this, LengthModeHeight, attr->value()));
00069         if (ry().value() < 0.0)
00070             document()->accessSVGExtensions()->reportError("A negative value for ellipse <ry> is not allowed");
00071     } else {
00072         if (SVGTests::parseMappedAttribute(attr))
00073             return;
00074         if (SVGLangSpace::parseMappedAttribute(attr))
00075             return;
00076         if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
00077             return;
00078         SVGStyledTransformableElement::parseMappedAttribute(attr);
00079     }
00080 }
00081 
00082 void SVGEllipseElement::svgAttributeChanged(const QualifiedName& attrName)
00083 {
00084     SVGStyledTransformableElement::svgAttributeChanged(attrName);
00085 
00086     if (!renderer())
00087         return;
00088 
00089     if (attrName == SVGNames::cxAttr || attrName == SVGNames::cyAttr ||
00090         attrName == SVGNames::rxAttr || attrName == SVGNames::ryAttr ||
00091         SVGTests::isKnownAttribute(attrName) ||
00092         SVGLangSpace::isKnownAttribute(attrName) ||
00093         SVGExternalResourcesRequired::isKnownAttribute(attrName) ||
00094         SVGStyledTransformableElement::isKnownAttribute(attrName))
00095         renderer()->setNeedsLayout(true);
00096 }
00097 
00098 Path SVGEllipseElement::toPathData() const
00099 {
00100     return Path::createEllipse(FloatPoint(cx().value(), cy().value()),
00101                                rx().value(), ry().value());
00102 }
00103  
00104 bool SVGEllipseElement::hasRelativeValues() const
00105 {
00106     return (cx().isRelative() || cy().isRelative() ||
00107             rx().isRelative() || ry().isRelative());
00108 }
00109 
00110 // KHTML ElementImpl pure virtual method
00111 quint32 SVGEllipseElement::id() const
00112 {
00113     return SVGNames::ellipseTag.id();
00114 }
00115 
00116 DOMString SVGEllipseElement::tagName() const
00117 {
00118     return SVGNames::ellipseTag.tagName();
00119 }
00120 
00121 
00122 }
00123 
00124 #endif // ENABLE(SVG)

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