khtml/svg/SVGEllipseElement.cpp

   1 /*
   2     Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
   3                   2004, 2005, 2006, 2007 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 #include "wtf/Platform.h"
  25
  26 #if ENABLE(SVG)
  27 #include "SVGEllipseElement.h"
  28
  29 #include "FloatPoint.h"
  30 #include "RenderPath.h"
  31 #include "SVGLength.h"
  32 #include "SVGNames.h"
  33
  34 namespace WebCore {
  35
  36 SVGEllipseElement::SVGEllipseElement(const QualifiedName& tagName, Document* doc)
  37     : SVGStyledTransformableElement(tagName, doc)
  38     , SVGTests()
  39     , SVGLangSpace()
  40     , SVGExternalResourcesRequired()
  41     , m_cx(this, LengthModeWidth)
  42     , m_cy(this, LengthModeHeight)
  43     , m_rx(this, LengthModeWidth)
  44     , m_ry(this, LengthModeHeight)
  45 {
  46 }
  47
  48 SVGEllipseElement::~SVGEllipseElement()
  49 {
  50 }
  51
  52 ANIMATED_PROPERTY_DEFINITIONS(SVGEllipseElement, SVGLength, Length, length, Cx, cx, SVGNames::cxAttr, m_cx)
  53 ANIMATED_PROPERTY_DEFINITIONS(SVGEllipseElement, SVGLength, Length, length, Cy, cy, SVGNames::cyAttr, m_cy)
  54 ANIMATED_PROPERTY_DEFINITIONS(SVGEllipseElement, SVGLength, Length, length, Rx, rx, SVGNames::rxAttr, m_rx)
  55 ANIMATED_PROPERTY_DEFINITIONS(SVGEllipseElement, SVGLength, Length, length, Ry, ry, SVGNames::ryAttr, m_ry)
  56
  57 void SVGEllipseElement::parseMappedAttribute(MappedAttribute* attr)
  58 {
  59     if (attr->name() == SVGNames::cxAttr)
  60         setCxBaseValue(SVGLength(this, LengthModeWidth, attr->value()));
  61     else if (attr->name() == SVGNames::cyAttr)
  62         setCyBaseValue(SVGLength(this, LengthModeHeight, attr->value()));
  63     else if (attr->name() == SVGNames::rxAttr) {
  64         setRxBaseValue(SVGLength(this, LengthModeWidth, attr->value()));
  65         if (rx().value() < 0.0)
  66             document()->accessSVGExtensions()->reportError("A negative value for ellipse <rx> is not allowed");
  67     } else if (attr->name() == SVGNames::ryAttr) {
  68         setRyBaseValue(SVGLength(this, LengthModeHeight, attr->value()));
  69         if (ry().value() < 0.0)
  70             document()->accessSVGExtensions()->reportError("A negative value for ellipse <ry> is not allowed");
  71     } else {
  72         if (SVGTests::parseMappedAttribute(attr))
  73             return;
  74         if (SVGLangSpace::parseMappedAttribute(attr))
  75             return;
  76         if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
  77             return;
  78         SVGStyledTransformableElement::parseMappedAttribute(attr);
  79     }
  80 }
  81
  82 void SVGEllipseElement::svgAttributeChanged(const QualifiedName& attrName)
  83 {
  84     SVGStyledTransformableElement::svgAttributeChanged(attrName);
  85
  86     if (!renderer())
  87         return;
  88
  89     if (attrName == SVGNames::cxAttr || attrName == SVGNames::cyAttr ||
  90         attrName == SVGNames::rxAttr || attrName == SVGNames::ryAttr ||
  91         SVGTests::isKnownAttribute(attrName) ||
  92         SVGLangSpace::isKnownAttribute(attrName) ||
  93         SVGExternalResourcesRequired::isKnownAttribute(attrName) ||
  94         SVGStyledTransformableElement::isKnownAttribute(attrName))
  95         renderer()->setNeedsLayout(true);
  96 }
  97
  98 Path SVGEllipseElement::toPathData() const
  99 {
 100     return Path::createEllipse(FloatPoint(cx().value(), cy().value()),
 101                                rx().value(), ry().value());
 102 }
 103
 104 bool SVGEllipseElement::hasRelativeValues() const
 105 {
 106     return (cx().isRelative() || cy().isRelative() ||
 107             rx().isRelative() || ry().isRelative());
 108 }
 109
 110 // KHTML ElementImpl pure virtual method
 111 quint32 SVGEllipseElement::id() const
 112 {
 113     return SVGNames::ellipseTag.id();
 114 }
 115
 116 DOMString SVGEllipseElement::tagName() const
 117 {
 118     return SVGNames::ellipseTag.tagName();
 119 }
 120
 121
 122 }
 123
 124 #endif // ENABLE(SVG)