Home | History | Annotate | Download | only in svg 
      1 /*
      2  * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann (at) kde.org>
      3  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis (at) kde.org>
      4  *
      5  * This library is free software; you can redistribute it and/or
      6  * modify it under the terms of the GNU Library General Public
      7  * License as published by the Free Software Foundation; either
      8  * version 2 of the License, or (at your option) any later version.
      9  *
     10  * This library is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13  * Library General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU Library General Public License
     16  * along with this library; see the file COPYING.LIB.  If not, write to
     17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     18  * Boston, MA 02110-1301, USA.
     19  */
     20 
     21 #include "config.h"
     22 
     23 #include "core/svg/SVGCircleElement.h"
     24 
     25 #include "SVGNames.h"
     26 #include "core/rendering/svg/RenderSVGEllipse.h"
     27 #include "core/rendering/svg/RenderSVGResource.h"
     28 #include "core/svg/SVGElementInstance.h"
     29 #include "core/svg/SVGLength.h"
     30 
     31 namespace WebCore {
     32 
     33 // Animated property definitions
     34 DEFINE_ANIMATED_LENGTH(SVGCircleElement, SVGNames::cxAttr, Cx, cx)
     35 DEFINE_ANIMATED_LENGTH(SVGCircleElement, SVGNames::cyAttr, Cy, cy)
     36 DEFINE_ANIMATED_LENGTH(SVGCircleElement, SVGNames::rAttr, R, r)
     37 DEFINE_ANIMATED_BOOLEAN(SVGCircleElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
     38 
     39 BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGCircleElement)
     40     REGISTER_LOCAL_ANIMATED_PROPERTY(cx)
     41     REGISTER_LOCAL_ANIMATED_PROPERTY(cy)
     42     REGISTER_LOCAL_ANIMATED_PROPERTY(r)
     43     REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired)
     44     REGISTER_PARENT_ANIMATED_PROPERTIES(SVGGraphicsElement)
     45 END_REGISTER_ANIMATED_PROPERTIES
     46 
     47 inline SVGCircleElement::SVGCircleElement(const QualifiedName& tagName, Document* document)
     48     : SVGGraphicsElement(tagName, document)
     49     , m_cx(LengthModeWidth)
     50     , m_cy(LengthModeHeight)
     51     , m_r(LengthModeOther)
     52 {
     53     ASSERT(hasTagName(SVGNames::circleTag));
     54     ScriptWrappable::init(this);
     55     registerAnimatedPropertiesForSVGCircleElement();
     56 }
     57 
     58 PassRefPtr<SVGCircleElement> SVGCircleElement::create(const QualifiedName& tagName, Document* document)
     59 {
     60     return adoptRef(new SVGCircleElement(tagName, document));
     61 }
     62 
     63 bool SVGCircleElement::isSupportedAttribute(const QualifiedName& attrName)
     64 {
     65     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
     66     if (supportedAttributes.isEmpty()) {
     67         SVGLangSpace::addSupportedAttributes(supportedAttributes);
     68         SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
     69         supportedAttributes.add(SVGNames::cxAttr);
     70         supportedAttributes.add(SVGNames::cyAttr);
     71         supportedAttributes.add(SVGNames::rAttr);
     72     }
     73     return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
     74 }
     75 
     76 void SVGCircleElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
     77 {
     78     SVGParsingError parseError = NoError;
     79 
     80     if (!isSupportedAttribute(name))
     81         SVGGraphicsElement::parseAttribute(name, value);
     82     else if (name == SVGNames::cxAttr)
     83         setCxBaseValue(SVGLength::construct(LengthModeWidth, value, parseError));
     84     else if (name == SVGNames::cyAttr)
     85         setCyBaseValue(SVGLength::construct(LengthModeHeight, value, parseError));
     86     else if (name == SVGNames::rAttr)
     87         setRBaseValue(SVGLength::construct(LengthModeOther, value, parseError, ForbidNegativeLengths));
     88     else if (SVGLangSpace::parseAttribute(name, value)
     89              || SVGExternalResourcesRequired::parseAttribute(name, value)) {
     90     } else
     91         ASSERT_NOT_REACHED();
     92 
     93     reportAttributeParsingError(parseError, name, value);
     94 }
     95 
     96 void SVGCircleElement::svgAttributeChanged(const QualifiedName& attrName)
     97 {
     98     if (!isSupportedAttribute(attrName)) {
     99         SVGGraphicsElement::svgAttributeChanged(attrName);
    100         return;
    101     }
    102 
    103     SVGElementInstance::InvalidationGuard invalidationGuard(this);
    104 
    105     bool isLengthAttribute = attrName == SVGNames::cxAttr
    106                           || attrName == SVGNames::cyAttr
    107                           || attrName == SVGNames::rAttr;
    108 
    109     if (isLengthAttribute)
    110         updateRelativeLengthsInformation();
    111 
    112     RenderSVGShape* renderer = toRenderSVGShape(this->renderer());
    113     if (!renderer)
    114         return;
    115 
    116     if (isLengthAttribute) {
    117         renderer->setNeedsShapeUpdate();
    118         RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
    119         return;
    120     }
    121 
    122     if (SVGLangSpace::isKnownAttribute(attrName) || SVGExternalResourcesRequired::isKnownAttribute(attrName)) {
    123         RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
    124         return;
    125     }
    126 
    127     ASSERT_NOT_REACHED();
    128 }
    129 
    130 bool SVGCircleElement::selfHasRelativeLengths() const
    131 {
    132     return cxCurrentValue().isRelative()
    133         || cyCurrentValue().isRelative()
    134         || rCurrentValue().isRelative();
    135 }
    136 
    137 RenderObject* SVGCircleElement::createRenderer(RenderStyle*)
    138 {
    139     return new RenderSVGEllipse(this);
    140 }
    141 
    142 }
    143