public override void ElementAdded(ElementAddedEventArgs e)
{
base.ElementAdded(e);
DiagramHasLinkShapes con = e.ModelElement as DiagramHasLinkShapes;
if (con != null)
{
LinkShape linkShape = con.LinkShape;
Diagram diagram = con.Diagram;
if (linkShape != null && diagram != null)
{
if (linkShape.IsDeleted)
{
return;
}
if (linkShape.SourceAnchor == null || linkShape.TargetAnchor == null)
{
throw new InvalidOperationException("LinkShape needs to have from and to anchors.");
}
if (linkShape.SourceAnchor.FromShape == null || linkShape.TargetAnchor.ToShape == null)
{
throw new InvalidOperationException("LinkShape anchors need to have from and to shape.");
}
diagram.AddToShapeMapping(linkShape);
if (linkShape.EdgePoints.Count == 0)
{
linkShape.Layout(FixedGeometryPoints.None);
}
else
{
linkShape.UpdateLinkPlacement();
if (!con.Store.InSerializationTransaction)
{
linkShape.Layout(FixedGeometryPoints.SourceAndTarget);
}
}
}
}
}
