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KHTML

SVGCircleElement.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 "SVGCircleElement.h"
00028 
00029 #include "FloatPoint.h"
00030 #include "RenderPath.h"
00031 #include "SVGNames.h"
00032 
00033 namespace WebCore {
00034 
00035 SVGCircleElement::SVGCircleElement(const QualifiedName& tagName, Document* doc)
00036     : SVGStyledTransformableElement(tagName, doc)
00037     , SVGTests()
00038     , SVGLangSpace()
00039     , SVGExternalResourcesRequired()
00040     , m_cx(SVGLength(this, LengthModeWidth))
00041     , m_cy(SVGLength(this, LengthModeHeight))
00042     , m_r(SVGLength(this, LengthModeOther))
00043 {
00044 }
00045 
00046 SVGCircleElement::~SVGCircleElement()
00047 {
00048 }
00049 
00050 ANIMATED_PROPERTY_DEFINITIONS(SVGCircleElement, SVGLength, Length, length, Cx, cx, SVGNames::cxAttr, m_cx)
00051 ANIMATED_PROPERTY_DEFINITIONS(SVGCircleElement, SVGLength, Length, length, Cy, cy, SVGNames::cyAttr, m_cy)
00052 ANIMATED_PROPERTY_DEFINITIONS(SVGCircleElement, SVGLength, Length, length, R, r, SVGNames::rAttr, m_r)
00053 
00054 void SVGCircleElement::parseMappedAttribute(MappedAttribute* attr)
00055 {
00056     if (attr->name() == SVGNames::cxAttr)
00057         setCxBaseValue(SVGLength(this, LengthModeWidth, attr->value()));       
00058     else if (attr->name() == SVGNames::cyAttr)
00059         setCyBaseValue(SVGLength(this, LengthModeHeight, attr->value()));
00060     else if (attr->name() == SVGNames::rAttr) {
00061         setRBaseValue(SVGLength(this, LengthModeOther, attr->value()));
00062         if (r().value() < 0.0)
00063             document()->accessSVGExtensions()->reportError("A negative value for circle <r> is not allowed");
00064     } else {
00065         if (SVGTests::parseMappedAttribute(attr))
00066             return;
00067         if (SVGLangSpace::parseMappedAttribute(attr))
00068             return;
00069         if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
00070             return;
00071         SVGStyledTransformableElement::parseMappedAttribute(attr);
00072     }
00073 }
00074 
00075 void SVGCircleElement::svgAttributeChanged(const QualifiedName& attrName)
00076 {
00077     SVGStyledTransformableElement::svgAttributeChanged(attrName);
00078 
00079     if (!renderer())
00080         return;
00081 
00082     if (attrName == SVGNames::cxAttr || attrName == SVGNames::cyAttr ||
00083         attrName == SVGNames::rAttr ||
00084         SVGTests::isKnownAttribute(attrName) ||
00085         SVGLangSpace::isKnownAttribute(attrName) ||
00086         SVGExternalResourcesRequired::isKnownAttribute(attrName) ||
00087         SVGStyledTransformableElement::isKnownAttribute(attrName))
00088         renderer()->setNeedsLayout(true);
00089 }
00090 
00091 Path SVGCircleElement::toPathData() const
00092 {
00093     return Path::createCircle(FloatPoint(cx().value(), cy().value()), r().value());
00094 }
00095 
00096 bool SVGCircleElement::hasRelativeValues() const
00097 {
00098     return (cx().isRelative() || cy().isRelative() || r().isRelative());
00099 }
00100 
00101 // KHTML ElementImpl pure virtual method
00102 quint32 SVGCircleElement::id() const
00103 {
00104     return SVGNames::circleTag.id();
00105 }
00106 
00107 DOMString SVGCircleElement::tagName() const
00108 {
00109     return SVGNames::circleTag.tagName();
00110 }
00111 
00112 
00113 }
00114 
00115 #endif // ENABLE(SVG)

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