public void changeEdgeDirection(AbstractEdge item, bool selected)
{
if (this.edges.Contains(item))
{
AbstractEdge edge = null;
if (item is EdgePositionTransition)
{
Transition endTransition = (Transition)item.End;
if (!TransitionType.SINK.Equals(endTransition.TransitionType))
{
edge = new EdgeTransitionPosition(item.Name, item.Unid, item.ShowAnnotation, item.Weight, endTransition, (Position)item.Start, item.CurveMiddlePointOffset, EdgeType.NORMAL);
}
}
else if (item is EdgeTransitionPosition)
{
Transition startTransition = (Transition)item.Start;
if (!TransitionType.SOURCE.Equals(startTransition.TransitionType))
{
edge = new EdgePositionTransition(item.Name, item.Unid, item.ShowAnnotation, item.Weight, (Position)item.End, startTransition, item.CurveMiddlePointOffset, item.EdgeType);
}
}
if (edge != null)
{
this.deleteEdge(item);
this.addEdge(edge);
if (selected)
{
this.selectItem(edge);
}
}
}
}
public static AbstractEdge openFromXml(XmlNode node, List<AbstractNetworkItem> items)
{
long positionUnid = 0;
long transitionUnid = 0;
bool isStartPosition = false;
PointF curveMiddlePoint = new PointF(0, 0);
XmlNodeList list = node.ChildNodes;
foreach (XmlNode childNode in list)
{
string namespaceUri = childNode.NamespaceURI;
string localName = childNode.LocalName;
switch (namespaceUri)
{
case PetriXmlHelper.XML_EDGE_NAMESPACE:
string reftype = AbstractEdge.openRefTypeAttrFromNode(childNode);
switch (localName)
{
case "Start":
if ("TRANSITION".Equals(reftype))
{
transitionUnid = Convert.ToInt64(childNode.InnerText);
}
else if ("POSITION".Equals(reftype))
{
positionUnid = Convert.ToInt64(childNode.InnerText);
isStartPosition = true;
}
break;
case "End":
if ("TRANSITION".Equals(reftype))
{
isStartPosition = true;
transitionUnid = Convert.ToInt64(childNode.InnerText);
}
else if ("POSITION".Equals(reftype))
{
positionUnid = Convert.ToInt64(childNode.InnerText);
}
break;
}
break;
case PetriXmlHelper.XML_POINTF_NAMESPACE:
if ("CurveMiddlePointOffset".Equals(localName))
{
curveMiddlePoint = PetriXmlHelper.openPointF(childNode);
}
break;
}
}
Position position = (Position)AbstractNetworkItem.findItemByUnid(items, positionUnid);
Transition transition = (Transition)AbstractNetworkItem.findItemByUnid(items, transitionUnid); ;
int weight = AbstractEdge.openWeightAttrFromNode(node);
EdgeType edgeType = AbstractEdge.openEdgeTypeFromXml(node);
string name = AbstractItem.openNameAttrFromNode(node);
long unid = AbstractItem.openUnidAttrFromNode(node);
bool showAnnotation = AbstractItem.openShowAnnotationAttrFromNode(node);
AbstractEdge ret = null;
if (isStartPosition)
{
ret = new EdgePositionTransition(name, unid, showAnnotation, weight, position, transition, curveMiddlePoint, edgeType);
}
else
{
ret = new EdgeTransitionPosition(name, unid, showAnnotation, weight, transition, position, curveMiddlePoint, edgeType);
}
return ret;
}