File indexing completed on 2024-04-28 11:39:15

 /*
     Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
                   2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org>
                   2006 Alexander Kellett <lypanov@kde.org>
 
     This file is part of the KDE project
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Library General Public License for more details.
 
     You should have received a copy of the GNU Library General Public License
     along with this library; see the file COPYING.LIB.  If not, write to
     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     Boston, MA 02110-1301, USA.
 */
 
 #if ENABLE(SVG)
 #include "SVGImageElement.h"
 
 #include "CSSPropertyNames.h"
 #include "RenderSVGImage.h"
 #include "SVGDocument.h"
 #include "SVGLength.h"
 #include "SVGNames.h"
 #include "SVGPreserveAspectRatio.h"
 #include "SVGSVGElement.h"
 #include "XLinkNames.h"
 
 namespace WebCore
 {
 
 SVGImageElement::SVGImageElement(const QualifiedName &tagName, Document *doc)
     : SVGStyledTransformableElement(tagName, doc)
     , SVGTests()
     , SVGLangSpace()
     , SVGExternalResourcesRequired()
     , SVGURIReference()
     , m_x(this, LengthModeWidth)
     , m_y(this, LengthModeHeight)
     , m_width(this, LengthModeWidth)
     , m_height(this, LengthModeHeight)
     , m_preserveAspectRatio(SVGPreserveAspectRatio::create())
     , m_imageLoader(this)
 {
 }
 
 SVGImageElement::~SVGImageElement()
 {
 }
 
 ANIMATED_PROPERTY_DEFINITIONS(SVGImageElement, SVGLength, Length, length, X, x, SVGNames::xAttr, m_x)
 ANIMATED_PROPERTY_DEFINITIONS(SVGImageElement, SVGLength, Length, length, Y, y, SVGNames::yAttr, m_y)
 ANIMATED_PROPERTY_DEFINITIONS(SVGImageElement, SVGLength, Length, length, Width, width, SVGNames::widthAttr, m_width)
 ANIMATED_PROPERTY_DEFINITIONS(SVGImageElement, SVGLength, Length, length, Height, height, SVGNames::heightAttr, m_height)
 ANIMATED_PROPERTY_DEFINITIONS(SVGImageElement, SVGPreserveAspectRatio *, PreserveAspectRatio, preserveAspectRatio, PreserveAspectRatio, preserveAspectRatio, SVGNames::preserveAspectRatioAttr, m_preserveAspectRatio.get())
 
 void SVGImageElement::parseMappedAttribute(MappedAttribute *attr)
 {
     if (attr->name() == SVGNames::xAttr) {
         setXBaseValue(SVGLength(this, LengthModeWidth, attr->value()));
     } else if (attr->name() == SVGNames::yAttr) {
         setYBaseValue(SVGLength(this, LengthModeHeight, attr->value()));
     } else if (attr->name() == SVGNames::preserveAspectRatioAttr) {
         const UChar *c = attr->value().characters();
         const UChar *end = c + attr->value().length();
         preserveAspectRatioBaseValue()->parsePreserveAspectRatio(c, end);
     } else if (attr->name() == SVGNames::widthAttr) {
         setWidthBaseValue(SVGLength(this, LengthModeWidth, attr->value()));
         addCSSProperty(attr, CSSPropertyWidth, attr->value());
         if (width().value() < 0.0) {
             document()->accessSVGExtensions()->reportError("A negative value for image attribute <width> is not allowed");
         }
     } else if (attr->name() == SVGNames::heightAttr) {
         setHeightBaseValue(SVGLength(this, LengthModeHeight, attr->value()));
         addCSSProperty(attr, CSSPropertyHeight, attr->value());
         if (height().value() < 0.0) {
             document()->accessSVGExtensions()->reportError("A negative value for image attribute <height> is not allowed");
         }
     } else {
         if (SVGTests::parseMappedAttribute(attr)) {
             return;
         }
         if (SVGLangSpace::parseMappedAttribute(attr)) {
             return;
         }
         if (SVGExternalResourcesRequired::parseMappedAttribute(attr)) {
             return;
         }
         if (SVGURIReference::parseMappedAttribute(attr)) {
             return;
         }
         SVGStyledTransformableElement::parseMappedAttribute(attr);
     }
 }
 
 void SVGImageElement::svgAttributeChanged(const QualifiedName &attrName)
 {
     SVGStyledTransformableElement::svgAttributeChanged(attrName);
 
     if (!renderer()) {
         return;
     }
 
     bool isURIAttribute = SVGURIReference::isKnownAttribute(attrName);
 
     if (attrName == SVGNames::xAttr || attrName == SVGNames::yAttr ||
             attrName == SVGNames::widthAttr || attrName == SVGNames::heightAttr ||
             SVGTests::isKnownAttribute(attrName) ||
             SVGLangSpace::isKnownAttribute(attrName) ||
             SVGExternalResourcesRequired::isKnownAttribute(attrName) ||
             isURIAttribute ||
             SVGStyledTransformableElement::isKnownAttribute(attrName)) {
         renderer()->setNeedsLayout(true);
 
         if (isURIAttribute) {
             m_imageLoader.updateFromElement();
         }
     }
 }
 
 bool SVGImageElement::hasRelativeValues() const
 {
     return (x().isRelative() || width().isRelative() ||
             y().isRelative() || height().isRelative());
 }
 
 RenderObject *SVGImageElement::createRenderer(RenderArena *arena, RenderStyle *style)
 {
     return new(arena) RenderSVGImage(this);
 }
 
 bool SVGImageElement::haveLoadedRequiredResources()
 {
     return !externalResourcesRequiredBaseValue() || m_imageLoader.haveFiredLoadEvent();
 }
 
 void SVGImageElement::attach()
 {
     SVGStyledTransformableElement::attach();
     m_imageLoader.updateFromElement();
     if (RenderSVGImage *imageObj = static_cast<RenderSVGImage *>(renderer())) {
         imageObj->setCachedImage(m_imageLoader.image());
     }
 }
 
 void SVGImageElement::getSubresourceAttributeStrings(Vector<String> &urls) const
 {
     urls.append(href());
 }
 
 }
 
 #endif // ENABLE(SVG)