File indexing completed on 2024-04-28 15:24:35

 /*
     Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
                   2004, 2005, 2006, 2007 Rob Buis <buis@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 "SVGMarkerElement.h"
 
 #include "PlatformString.h"
 #include "RenderSVGViewportContainer.h"
 #include "SVGAngle.h"
 #include "SVGLength.h"
 #include "SVGNames.h"
 #include "SVGPreserveAspectRatio.h"
 #include "SVGSVGElement.h"
 
 namespace WebCore
 {
 
 SVGMarkerElement::SVGMarkerElement(const QualifiedName &tagName, Document *doc)
     : SVGStyledElement(tagName, doc)
     , SVGLangSpace()
     , SVGExternalResourcesRequired()
     , SVGFitToViewBox()
     , m_refX(this, LengthModeWidth)
     , m_refY(this, LengthModeHeight)
     , m_markerWidth(this, LengthModeWidth)
     , m_markerHeight(this, LengthModeHeight)
     , m_markerUnits(SVG_MARKERUNITS_STROKEWIDTH)
     , m_orientType(0)
     , m_orientAngle(new SVGAngle())
 {
     // Spec: If the attribute is not specified, the effect is as if a value of "3" were specified.
     setMarkerWidthBaseValue(SVGLength(this, LengthModeWidth, "3"));
     setMarkerHeightBaseValue(SVGLength(this, LengthModeHeight, "3"));
 }
 
 SVGMarkerElement::~SVGMarkerElement()
 {
 }
 
 ANIMATED_PROPERTY_DEFINITIONS(SVGMarkerElement, SVGLength, Length, length, RefX, refX, SVGNames::refXAttr, m_refX)
 ANIMATED_PROPERTY_DEFINITIONS(SVGMarkerElement, SVGLength, Length, length, RefY, refY, SVGNames::refYAttr, m_refY)
 ANIMATED_PROPERTY_DEFINITIONS(SVGMarkerElement, int, Enumeration, enumeration, MarkerUnits, markerUnits, SVGNames::markerUnitsAttr, m_markerUnits)
 ANIMATED_PROPERTY_DEFINITIONS(SVGMarkerElement, SVGLength, Length, length, MarkerWidth, markerWidth, SVGNames::markerWidthAttr, m_markerWidth)
 ANIMATED_PROPERTY_DEFINITIONS(SVGMarkerElement, SVGLength, Length, length, MarkerHeight, markerHeight, SVGNames::markerHeightAttr, m_markerHeight)
 ANIMATED_PROPERTY_DEFINITIONS_WITH_CUSTOM_IDENTIFIER(SVGMarkerElement, int, Enumeration, enumeration, OrientType, orientType, SVGNames::orientAttr, "orientType", m_orientType)
 ANIMATED_PROPERTY_DEFINITIONS_WITH_CUSTOM_IDENTIFIER(SVGMarkerElement, SVGAngle *, Angle, angle, OrientAngle, orientAngle, SVGNames::orientAttr, "orientAngle", m_orientAngle.get())
 
 void SVGMarkerElement::parseMappedAttribute(MappedAttribute *attr)
 {
     if (attr->name() == SVGNames::markerUnitsAttr) {
         if (attr->value() == "userSpaceOnUse") {
             setMarkerUnitsBaseValue(SVG_MARKERUNITS_USERSPACEONUSE);
         }
     } else if (attr->name() == SVGNames::refXAttr) {
         setRefXBaseValue(SVGLength(this, LengthModeWidth, attr->value()));
     } else if (attr->name() == SVGNames::refYAttr) {
         setRefYBaseValue(SVGLength(this, LengthModeHeight, attr->value()));
     } else if (attr->name() == SVGNames::markerWidthAttr) {
         setMarkerWidthBaseValue(SVGLength(this, LengthModeWidth, attr->value()));
     } else if (attr->name() == SVGNames::markerHeightAttr) {
         setMarkerHeightBaseValue(SVGLength(this, LengthModeHeight, attr->value()));
     } else if (attr->name() == SVGNames::orientAttr) {
         if (attr->value() == "auto") {
             setOrientToAuto();
         } else {
             SVGAngle *angle = new SVGAngle();
             angle->setValueAsString(attr->value());
             setOrientToAngle(angle);
         }
     } else {
         if (SVGLangSpace::parseMappedAttribute(attr)) {
             return;
         }
         if (SVGExternalResourcesRequired::parseMappedAttribute(attr)) {
             return;
         }
         if (SVGFitToViewBox::parseMappedAttribute(attr)) {
             return;
         }
 
         SVGStyledElement::parseMappedAttribute(attr);
     }
 }
 
 void SVGMarkerElement::svgAttributeChanged(const QualifiedName &attrName)
 {
     SVGStyledElement::svgAttributeChanged(attrName);
 
     if (!m_marker) {
         return;
     }
 
     if (attrName == SVGNames::markerUnitsAttr || attrName == SVGNames::refXAttr ||
             attrName == SVGNames::refYAttr || attrName == SVGNames::markerWidthAttr ||
             attrName == SVGNames::markerHeightAttr || attrName == SVGNames::orientAttr ||
             SVGLangSpace::isKnownAttribute(attrName) ||
             SVGExternalResourcesRequired::isKnownAttribute(attrName) ||
             SVGFitToViewBox::isKnownAttribute(attrName) ||
             SVGStyledElement::isKnownAttribute(attrName)) {
         if (renderer()) {
             renderer()->setNeedsLayout(true);
         }
 
         m_marker->invalidate();
     }
 }
 
 void SVGMarkerElement::childrenChanged(bool changedByParser, Node *beforeChange, Node *afterChange, int childCountDelta)
 {
     SVGStyledElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
 
     if (renderer()) {
         renderer()->setNeedsLayout(true);
     }
 
     if (m_marker) {
         m_marker->invalidate();
     }
 }
 
 void SVGMarkerElement::setOrientToAuto()
 {
     setOrientTypeBaseValue(SVG_MARKER_ORIENT_AUTO);
 }
 
 void SVGMarkerElement::setOrientToAngle(SVGAngle *angle)
 {
     setOrientTypeBaseValue(SVG_MARKER_ORIENT_ANGLE);
     setOrientAngleBaseValue(angle);
 }
 
 SVGResource *SVGMarkerElement::canvasResource()
 {
     if (!m_marker) {
         m_marker = SVGResourceMarker::create();
     }
 
     m_marker->setMarker(static_cast<RenderSVGViewportContainer *>(renderer()));
 
     // Spec: If the attribute is not specified, the effect is as if a
     // value of "0" were specified.
     if (!m_orientType) {
         setOrientToAngle(SVGSVGElement::createSVGAngle());
     }
 
     if (orientType() == SVG_MARKER_ORIENT_ANGLE) {
         m_marker->setAngle(orientAngle()->value());
     } else {
         m_marker->setAutoAngle();
     }
 
     m_marker->setRef(refX().value(), refY().value());
     m_marker->setUseStrokeWidth(markerUnits() == SVG_MARKERUNITS_STROKEWIDTH);
 
     return m_marker.get();
 }
 
 RenderObject *SVGMarkerElement::createRenderer(RenderArena *arena, RenderStyle *style)
 {
     RenderSVGViewportContainer *markerContainer = new(arena) RenderSVGViewportContainer(this);
     markerContainer->setDrawsContents(false); // Marker contents will be explicitly drawn.
     return markerContainer;
 }
 
 }
 
 #endif // ENABLE(SVG)