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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 WebCore {
     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     ScriptWrappable::init(this);
     41 
     42     addToPropertyMap(m_x);
     43     addToPropertyMap(m_y);
     44     addToPropertyMap(m_width);
     45     addToPropertyMap(m_height);
     46     addToPropertyMap(m_rx);
     47     addToPropertyMap(m_ry);
     48 }
     49 
     50 DEFINE_NODE_FACTORY(SVGRectElement)
     51 
     52 bool SVGRectElement::isSupportedAttribute(const QualifiedName& attrName)
     53 {
     54     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
     55     if (supportedAttributes.isEmpty()) {
     56         supportedAttributes.add(SVGNames::xAttr);
     57         supportedAttributes.add(SVGNames::yAttr);
     58         supportedAttributes.add(SVGNames::widthAttr);
     59         supportedAttributes.add(SVGNames::heightAttr);
     60         supportedAttributes.add(SVGNames::rxAttr);
     61         supportedAttributes.add(SVGNames::ryAttr);
     62     }
     63     return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
     64 }
     65 
     66 void SVGRectElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
     67 {
     68     SVGParsingError parseError = NoError;
     69 
     70     if (!isSupportedAttribute(name))
     71         SVGGeometryElement::parseAttribute(name, value);
     72     else if (name == SVGNames::xAttr)
     73         m_x->setBaseValueAsString(value, parseError);
     74     else if (name == SVGNames::yAttr)
     75         m_y->setBaseValueAsString(value, parseError);
     76     else if (name == SVGNames::rxAttr)
     77         m_rx->setBaseValueAsString(value, parseError);
     78     else if (name == SVGNames::ryAttr)
     79         m_ry->setBaseValueAsString(value, parseError);
     80     else if (name == SVGNames::widthAttr)
     81         m_width->setBaseValueAsString(value, parseError);
     82     else if (name == SVGNames::heightAttr)
     83         m_height->setBaseValueAsString(value, parseError);
     84     else
     85         ASSERT_NOT_REACHED();
     86 
     87     reportAttributeParsingError(parseError, name, value);
     88 }
     89 
     90 void SVGRectElement::svgAttributeChanged(const QualifiedName& attrName)
     91 {
     92     if (!isSupportedAttribute(attrName)) {
     93         SVGGeometryElement::svgAttributeChanged(attrName);
     94         return;
     95     }
     96 
     97     SVGElement::InvalidationGuard invalidationGuard(this);
     98 
     99     bool isLengthAttribute = attrName == SVGNames::xAttr
    100                           || attrName == SVGNames::yAttr
    101                           || attrName == SVGNames::widthAttr
    102                           || attrName == SVGNames::heightAttr
    103                           || attrName == SVGNames::rxAttr
    104                           || attrName == SVGNames::ryAttr;
    105 
    106     if (isLengthAttribute)
    107         updateRelativeLengthsInformation();
    108 
    109     RenderSVGShape* renderer = toRenderSVGShape(this->renderer());
    110     if (!renderer)
    111         return;
    112 
    113     if (isLengthAttribute) {
    114         renderer->setNeedsShapeUpdate();
    115         RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
    116         return;
    117     }
    118 
    119     ASSERT_NOT_REACHED();
    120 }
    121 
    122 bool SVGRectElement::selfHasRelativeLengths() const
    123 {
    124     return m_x->currentValue()->isRelative()
    125         || m_y->currentValue()->isRelative()
    126         || m_width->currentValue()->isRelative()
    127         || m_height->currentValue()->isRelative()
    128         || m_rx->currentValue()->isRelative()
    129         || m_ry->currentValue()->isRelative();
    130 }
    131 
    132 RenderObject* SVGRectElement::createRenderer(RenderStyle*)
    133 {
    134     return new RenderSVGRect(this);
    135 }
    136 
    137 }
    138