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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/SVGRectElement.h"
     24 
     25 #include "core/rendering/svg/RenderSVGRect.h"
     26 #include "core/rendering/svg/RenderSVGResource.h"
     27 #include "core/svg/SVGLength.h"
     28 
     29 namespace blink {
     30 
     31 inline SVGRectElement::SVGRectElement(Document& document)
     32     : SVGGeometryElement(SVGNames::rectTag, document)
     33     , m_x(SVGAnimatedLength::create(this, SVGNames::xAttr, SVGLength::create(LengthModeWidth), AllowNegativeLengths))
     34     , m_y(SVGAnimatedLength::create(this, SVGNames::yAttr, SVGLength::create(LengthModeHeight), AllowNegativeLengths))
     35     , m_width(SVGAnimatedLength::create(this, SVGNames::widthAttr, SVGLength::create(LengthModeWidth), ForbidNegativeLengths))
     36     , m_height(SVGAnimatedLength::create(this, SVGNames::heightAttr, SVGLength::create(LengthModeHeight), ForbidNegativeLengths))
     37     , m_rx(SVGAnimatedLength::create(this, SVGNames::rxAttr, SVGLength::create(LengthModeWidth), ForbidNegativeLengths))
     38     , m_ry(SVGAnimatedLength::create(this, SVGNames::ryAttr, SVGLength::create(LengthModeHeight), ForbidNegativeLengths))
     39 {
     40     addToPropertyMap(m_x);
     41     addToPropertyMap(m_y);
     42     addToPropertyMap(m_width);
     43     addToPropertyMap(m_height);
     44     addToPropertyMap(m_rx);
     45     addToPropertyMap(m_ry);
     46 }
     47 
     48 DEFINE_NODE_FACTORY(SVGRectElement)
     49 
     50 bool SVGRectElement::isSupportedAttribute(const QualifiedName& attrName)
     51 {
     52     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
     53     if (supportedAttributes.isEmpty()) {
     54         supportedAttributes.add(SVGNames::xAttr);
     55         supportedAttributes.add(SVGNames::yAttr);
     56         supportedAttributes.add(SVGNames::widthAttr);
     57         supportedAttributes.add(SVGNames::heightAttr);
     58         supportedAttributes.add(SVGNames::rxAttr);
     59         supportedAttributes.add(SVGNames::ryAttr);
     60     }
     61     return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
     62 }
     63 
     64 void SVGRectElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
     65 {
     66     parseAttributeNew(name, value);
     67 }
     68 
     69 void SVGRectElement::svgAttributeChanged(const QualifiedName& attrName)
     70 {
     71     if (!isSupportedAttribute(attrName)) {
     72         SVGGeometryElement::svgAttributeChanged(attrName);
     73         return;
     74     }
     75 
     76     SVGElement::InvalidationGuard invalidationGuard(this);
     77 
     78     bool isLengthAttribute = attrName == SVGNames::xAttr
     79                           || attrName == SVGNames::yAttr
     80                           || attrName == SVGNames::widthAttr
     81                           || attrName == SVGNames::heightAttr
     82                           || attrName == SVGNames::rxAttr
     83                           || attrName == SVGNames::ryAttr;
     84 
     85     if (isLengthAttribute)
     86         updateRelativeLengthsInformation();
     87 
     88     RenderSVGShape* renderer = toRenderSVGShape(this->renderer());
     89     if (!renderer)
     90         return;
     91 
     92     if (isLengthAttribute) {
     93         renderer->setNeedsShapeUpdate();
     94         RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
     95         return;
     96     }
     97 
     98     ASSERT_NOT_REACHED();
     99 }
    100 
    101 bool SVGRectElement::selfHasRelativeLengths() const
    102 {
    103     return m_x->currentValue()->isRelative()
    104         || m_y->currentValue()->isRelative()
    105         || m_width->currentValue()->isRelative()
    106         || m_height->currentValue()->isRelative()
    107         || m_rx->currentValue()->isRelative()
    108         || m_ry->currentValue()->isRelative();
    109 }
    110 
    111 RenderObject* SVGRectElement::createRenderer(RenderStyle*)
    112 {
    113     return new RenderSVGRect(this);
    114 }
    115 
    116 } // namespace blink
    117