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      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/SVGEllipseElement.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(SVGEllipseElement, SVGNames::cxAttr, Cx, cx)
     35 DEFINE_ANIMATED_LENGTH(SVGEllipseElement, SVGNames::cyAttr, Cy, cy)
     36 DEFINE_ANIMATED_LENGTH(SVGEllipseElement, SVGNames::rxAttr, Rx, rx)
     37 DEFINE_ANIMATED_LENGTH(SVGEllipseElement, SVGNames::ryAttr, Ry, ry)
     38 DEFINE_ANIMATED_BOOLEAN(SVGEllipseElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
     39 
     40 BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGEllipseElement)
     41     REGISTER_LOCAL_ANIMATED_PROPERTY(cx)
     42     REGISTER_LOCAL_ANIMATED_PROPERTY(cy)
     43     REGISTER_LOCAL_ANIMATED_PROPERTY(rx)
     44     REGISTER_LOCAL_ANIMATED_PROPERTY(ry)
     45     REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired)
     46     REGISTER_PARENT_ANIMATED_PROPERTIES(SVGGraphicsElement)
     47 END_REGISTER_ANIMATED_PROPERTIES
     48 
     49 inline SVGEllipseElement::SVGEllipseElement(const QualifiedName& tagName, Document* document)
     50     : SVGGraphicsElement(tagName, document)
     51     , m_cx(LengthModeWidth)
     52     , m_cy(LengthModeHeight)
     53     , m_rx(LengthModeWidth)
     54     , m_ry(LengthModeHeight)
     55 {
     56     ASSERT(hasTagName(SVGNames::ellipseTag));
     57     ScriptWrappable::init(this);
     58     registerAnimatedPropertiesForSVGEllipseElement();
     59 }
     60 
     61 PassRefPtr<SVGEllipseElement> SVGEllipseElement::create(const QualifiedName& tagName, Document* document)
     62 {
     63     return adoptRef(new SVGEllipseElement(tagName, document));
     64 }
     65 
     66 bool SVGEllipseElement::isSupportedAttribute(const QualifiedName& attrName)
     67 {
     68     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
     69     if (supportedAttributes.isEmpty()) {
     70         SVGLangSpace::addSupportedAttributes(supportedAttributes);
     71         SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
     72         supportedAttributes.add(SVGNames::cxAttr);
     73         supportedAttributes.add(SVGNames::cyAttr);
     74         supportedAttributes.add(SVGNames::rxAttr);
     75         supportedAttributes.add(SVGNames::ryAttr);
     76     }
     77     return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
     78 }
     79 
     80 void SVGEllipseElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
     81 {
     82     SVGParsingError parseError = NoError;
     83 
     84     if (!isSupportedAttribute(name))
     85         SVGGraphicsElement::parseAttribute(name, value);
     86     else if (name == SVGNames::cxAttr)
     87         setCxBaseValue(SVGLength::construct(LengthModeWidth, value, parseError));
     88     else if (name == SVGNames::cyAttr)
     89         setCyBaseValue(SVGLength::construct(LengthModeHeight, value, parseError));
     90     else if (name == SVGNames::rxAttr)
     91         setRxBaseValue(SVGLength::construct(LengthModeWidth, value, parseError, ForbidNegativeLengths));
     92     else if (name == SVGNames::ryAttr)
     93         setRyBaseValue(SVGLength::construct(LengthModeHeight, value, parseError, ForbidNegativeLengths));
     94     else if (SVGLangSpace::parseAttribute(name, value)
     95              || SVGExternalResourcesRequired::parseAttribute(name, value)) {
     96     } else
     97         ASSERT_NOT_REACHED();
     98 
     99     reportAttributeParsingError(parseError, name, value);
    100 }
    101 
    102 void SVGEllipseElement::svgAttributeChanged(const QualifiedName& attrName)
    103 {
    104     if (!isSupportedAttribute(attrName)) {
    105         SVGGraphicsElement::svgAttributeChanged(attrName);
    106         return;
    107     }
    108 
    109     SVGElementInstance::InvalidationGuard invalidationGuard(this);
    110 
    111     bool isLengthAttribute = attrName == SVGNames::cxAttr
    112                           || attrName == SVGNames::cyAttr
    113                           || attrName == SVGNames::rxAttr
    114                           || attrName == SVGNames::ryAttr;
    115 
    116     if (isLengthAttribute)
    117         updateRelativeLengthsInformation();
    118 
    119     RenderSVGShape* renderer = toRenderSVGShape(this->renderer());
    120     if (!renderer)
    121         return;
    122 
    123     if (isLengthAttribute) {
    124         renderer->setNeedsShapeUpdate();
    125         RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
    126         return;
    127     }
    128 
    129     if (SVGLangSpace::isKnownAttribute(attrName) || SVGExternalResourcesRequired::isKnownAttribute(attrName)) {
    130         RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
    131         return;
    132     }
    133 
    134     ASSERT_NOT_REACHED();
    135 }
    136 
    137 bool SVGEllipseElement::selfHasRelativeLengths() const
    138 {
    139     return cxCurrentValue().isRelative()
    140         || cyCurrentValue().isRelative()
    141         || rxCurrentValue().isRelative()
    142         || ryCurrentValue().isRelative();
    143 }
    144 
    145 RenderObject* SVGEllipseElement::createRenderer(RenderStyle*)
    146 {
    147     return new RenderSVGEllipse(this);
    148 }
    149 
    150 }
    151