SVGMarkerElement.cpp [plain text]
#include "config.h"
#if ENABLE(SVG)
#include "SVGMarkerElement.h"
#include "PlatformString.h"
#include "RenderSVGViewportContainer.h"
#include "SVGAngle.h"
#include "SVGFitToViewBox.h"
#include "SVGLength.h"
#include "SVGNames.h"
#include "SVGPreserveAspectRatio.h"
#include "SVGSVGElement.h"
namespace WebCore {
char SVGOrientTypeAttrIdentifier[] = "SVGOrientTypeAttr";
char SVGOrientAngleAttrIdentifier[] = "SVGOrientAngleAttr";
SVGMarkerElement::SVGMarkerElement(const QualifiedName& tagName, Document* doc)
: SVGStyledElement(tagName, doc)
, SVGLangSpace()
, SVGExternalResourcesRequired()
, SVGFitToViewBox()
, m_refX(this, SVGNames::refXAttr, LengthModeWidth)
, m_refY(this, SVGNames::refYAttr, LengthModeHeight)
, m_markerWidth(this, SVGNames::markerWidthAttr, LengthModeWidth, "3")
, m_markerHeight(this, SVGNames::markerHeightAttr, LengthModeHeight, "3")
, m_markerUnits(this, SVGNames::markerUnitsAttr, SVG_MARKERUNITS_STROKEWIDTH)
, m_orientType(this, SVGNames::orientAttr, SVG_MARKER_ORIENT_ANGLE)
, m_orientAngle(this, SVGNames::orientAttr, SVGAngle::create())
{
}
SVGMarkerElement::~SVGMarkerElement()
{
if (renderer())
detach();
}
void SVGMarkerElement::parseMappedAttribute(MappedAttribute* attr)
{
if (attr->name() == SVGNames::markerUnitsAttr) {
if (attr->value() == "userSpaceOnUse")
setMarkerUnitsBaseValue(SVG_MARKERUNITS_USERSPACEONUSE);
else if (attr->value() == "strokeWidth")
setMarkerUnitsBaseValue(SVG_MARKERUNITS_STROKEWIDTH);
} else if (attr->name() == SVGNames::refXAttr)
setRefXBaseValue(SVGLength(LengthModeWidth, attr->value()));
else if (attr->name() == SVGNames::refYAttr)
setRefYBaseValue(SVGLength(LengthModeHeight, attr->value()));
else if (attr->name() == SVGNames::markerWidthAttr)
setMarkerWidthBaseValue(SVGLength(LengthModeWidth, attr->value()));
else if (attr->name() == SVGNames::markerHeightAttr)
setMarkerHeightBaseValue(SVGLength(LengthModeHeight, attr->value()));
else if (attr->name() == SVGNames::orientAttr) {
RefPtr<SVGAngle> angle = SVGAngle::create();
if (attr->value() == "auto")
setOrientTypeBaseValue(SVG_MARKER_ORIENT_AUTO);
else {
angle->setValueAsString(attr->value());
setOrientTypeBaseValue(SVG_MARKER_ORIENT_ANGLE);
}
setOrientAngleBaseValue(angle.get());
} 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 (!m_marker)
return;
if (renderer())
renderer()->setNeedsLayout(true);
m_marker->invalidate();
}
void SVGMarkerElement::setOrientToAuto()
{
setOrientTypeBaseValue(SVG_MARKER_ORIENT_AUTO);
RefPtr<SVGAngle> angle = SVGAngle::create();
setOrientAngleBaseValue(angle.get());
if (!m_marker)
return;
if (renderer())
renderer()->setNeedsLayout(true);
m_marker->invalidate();
}
void SVGMarkerElement::setOrientToAngle(PassRefPtr<SVGAngle> angle)
{
setOrientTypeBaseValue(SVG_MARKER_ORIENT_ANGLE);
setOrientAngleBaseValue(angle.get());
if (!m_marker)
return;
if (renderer())
renderer()->setNeedsLayout(true);
m_marker->invalidate();
}
SVGResource* SVGMarkerElement::canvasResource()
{
if (!m_marker)
m_marker = SVGResourceMarker::create();
m_marker->setMarker(static_cast<RenderSVGViewportContainer*>(renderer()));
if (orientType() == SVG_MARKER_ORIENT_ANGLE) {
if (orientAngle())
m_marker->setAngle(orientAngle()->value());
} else
m_marker->setAutoAngle();
m_marker->setRef(refX().value(this), refY().value(this));
m_marker->setUseStrokeWidth(markerUnits() == SVG_MARKERUNITS_STROKEWIDTH);
return m_marker.get();
}
RenderObject* SVGMarkerElement::createRenderer(RenderArena* arena, RenderStyle*)
{
RenderSVGViewportContainer* markerContainer = new (arena) RenderSVGViewportContainer(this);
markerContainer->setDrawsContents(false); return markerContainer;
}
}
#endif // ENABLE(SVG)