/// <summary>
/// Makes sure child and link shapes are visible
/// </summary>
public virtual void FixupShapeVisibility()
{
ReadOnlyCollection <NodeShapeReferencesNestedChildren> linksN = NodeShapeReferencesNestedChildren.GetLinksToNestedChildren(this.ShapeElement);
foreach (NodeShapeReferencesNestedChildren link in linksN)
{
OnNestedChildShapeElementAdded(link);
}
ReadOnlyCollection <NodeShapeReferencesRelativeChildren> linksR = NodeShapeReferencesRelativeChildren.GetLinksToRelativeChildren(this.ShapeElement);
foreach (NodeShapeReferencesRelativeChildren link in linksR)
{
OnRelativeChildShapeElementAdded(link);
}
foreach (BaseDiagramItemElementViewModel vm in this.NestedChildren)
{
vm.FixupShapeVisibility();
}
foreach (BaseDiagramItemElementViewModel vm in this.RelativeChildren)
{
vm.FixupShapeVisibility();
}
}
/// <summary>
/// Called whenever a relationship of type NodeShapeReferencesRelativeChildren is added and
/// the element hosted by this model is the source.
/// </summary>
/// <param name="con"></param>
protected virtual void OnRelativeChildShapeElementAdded(NodeShapeReferencesRelativeChildren con)
{
if (IsDisplayingNodeShape(con.ChildShape))
{
return;
}
DiagramItemElementViewModel vm = this.ViewModelStore.Factory.CreateDiagramItemViewModel(con.ChildShape.GetDomainClassId(), this.Diagram, con.ChildShape);
this.AddRelativeChild(vm);
}
/// <summary>
/// Called whenever a relationship of type NodeShapeReferencesRelativeChildren is removed and
/// the element hosted by this model is the source.
/// </summary>
/// <param name="args"></param>
protected virtual void OnRelativeChildShapeElementRemoved(ElementDeletedEventArgs args)
{
NodeShapeReferencesRelativeChildren con = args.ModelElement as NodeShapeReferencesRelativeChildren;
NodeShape nodeShape = con.ChildShape;
if (nodeShape != null)
{
for (int i = this.relativeChildItems.Count - 1; i >= 0; i--)
{
if (this.relativeChildItems[i].ShapeElement.Id == nodeShape.Id)
{
BaseDiagramItemElementViewModel vm = this.relativeChildItems[i];
this.RemoveRelativeChild(vm);
vm.Dispose();
}
}
}
}
public override void ElementAdded(ElementAddedEventArgs e)
{
NodeShapeReferencesRelativeChildren con = e.ModelElement as NodeShapeReferencesRelativeChildren;
if (con != null)
{
NodeShape childShape = con.ChildShape;
NodeShape parentShape = con.ParentShape;
if (childShape != null && parentShape != null)
{
if (childShape.MovementBehaviour == ShapeMovementBehaviour.PositionOnEdgeOfParent)
{
childShape.CorrectLocation();
}
}
else
{
con.Delete();
}
}
}
/// <summary>
///
/// </summary>
/// <param name="con"></param>
protected override void OnRelativeChildShapeElementAdded(NodeShapeReferencesRelativeChildren con)
{
throw new NotSupportedException();
}