khtml/svg/SVGCircleElement.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 "SVGCircleElement.h"
  28
  29 #include "FloatPoint.h"
  30 #include "RenderPath.h"
  31 #include "SVGNames.h"
  32
  33 namespace WebCore {
  34
  35 SVGCircleElement::SVGCircleElement(const QualifiedName& tagName, Document* doc)
  36     : SVGStyledTransformableElement(tagName, doc)
  37     , SVGTests()
  38     , SVGLangSpace()
  39     , SVGExternalResourcesRequired()
  40     , m_cx(SVGLength(this, LengthModeWidth))
  41     , m_cy(SVGLength(this, LengthModeHeight))
  42     , m_r(SVGLength(this, LengthModeOther))
  43 {
  44 }
  45
  46 SVGCircleElement::~SVGCircleElement()
  47 {
  48 }
  49
  50 ANIMATED_PROPERTY_DEFINITIONS(SVGCircleElement, SVGLength, Length, length, Cx, cx, SVGNames::cxAttr, m_cx)
  51 ANIMATED_PROPERTY_DEFINITIONS(SVGCircleElement, SVGLength, Length, length, Cy, cy, SVGNames::cyAttr, m_cy)
  52 ANIMATED_PROPERTY_DEFINITIONS(SVGCircleElement, SVGLength, Length, length, R, r, SVGNames::rAttr, m_r)
  53
  54 void SVGCircleElement::parseMappedAttribute(MappedAttribute* attr)
  55 {
  56     if (attr->name() == SVGNames::cxAttr)
  57         setCxBaseValue(SVGLength(this, LengthModeWidth, attr->value()));
  58     else if (attr->name() == SVGNames::cyAttr)
  59         setCyBaseValue(SVGLength(this, LengthModeHeight, attr->value()));
  60     else if (attr->name() == SVGNames::rAttr) {
  61         setRBaseValue(SVGLength(this, LengthModeOther, attr->value()));
  62         if (r().value() < 0.0)
  63             document()->accessSVGExtensions()->reportError("A negative value for circle <r> is not allowed");
  64     } else {
  65         if (SVGTests::parseMappedAttribute(attr))
  66             return;
  67         if (SVGLangSpace::parseMappedAttribute(attr))
  68             return;
  69         if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
  70             return;
  71         SVGStyledTransformableElement::parseMappedAttribute(attr);
  72     }
  73 }
  74
  75 void SVGCircleElement::svgAttributeChanged(const QualifiedName& attrName)
  76 {
  77     SVGStyledTransformableElement::svgAttributeChanged(attrName);
  78
  79     if (!renderer())
  80         return;
  81
  82     if (attrName == SVGNames::cxAttr || attrName == SVGNames::cyAttr ||
  83         attrName == SVGNames::rAttr ||
  84         SVGTests::isKnownAttribute(attrName) ||
  85         SVGLangSpace::isKnownAttribute(attrName) ||
  86         SVGExternalResourcesRequired::isKnownAttribute(attrName) ||
  87         SVGStyledTransformableElement::isKnownAttribute(attrName))
  88         renderer()->setNeedsLayout(true);
  89 }
  90
  91 Path SVGCircleElement::toPathData() const
  92 {
  93     return Path::createCircle(FloatPoint(cx().value(), cy().value()), r().value());
  94 }
  95
  96 bool SVGCircleElement::hasRelativeValues() const
  97 {
  98     return (cx().isRelative() || cy().isRelative() || r().isRelative());
  99 }
 100
 101 // KHTML ElementImpl pure virtual method
 102 quint32 SVGCircleElement::id() const
 103 {
 104     return SVGNames::circleTag.id();
 105 }
 106
 107 DOMString SVGCircleElement::tagName() const
 108 {
 109     return SVGNames::circleTag.tagName();
 110 }
 111
 112
 113 }
 114
 115 #endif // ENABLE(SVG)