public override void ElementAdded(ElementAddedEventArgs e)
{
ShapeElementContainsChildShapes con = e.ModelElement as ShapeElementContainsChildShapes;
if (con != null)
{
NodeShape childShape = con.ChildShape;
NodeShape parentShape = con.ParentShape;
if (childShape != null && parentShape != null)
{
if (childShape.IsDeleted)
{
return;
}
if (parentShape.IsDeleted)
{
return;
}
parentShape.AddToShapeMapping(childShape);
childShape.UpdateAbsoluteLocation();
if (childShape.Location == PointD.Empty)
{
childShape.SetAtFreePositionOnParent();
}
}
else
{
con.Delete();
}
}
}
/// <summary>
/// Called whenever a model element is added to the store.
/// </summary>
/// <param name="sender">ViewModelStore</param>
/// <param name="args">Event Arguments for notification of the creation of new model element.</param>
private void OnElementAdded(object sender, ElementAddedEventArgs args)
{
if (!ModelData.DoSendModelEvents)
{
return;
}
// update shape mapping (this is required, becauso undo/redo does not trigger events)
if (args.ModelElement is DiagramHasChildren)
{
DiagramHasChildren con = args.ModelElement as DiagramHasChildren;
if (con != null)
{
NodeShape nodeShape = con.ChildShape;
Diagram diagram = con.Diagram;
if (nodeShape != null && diagram != null)
{
if (nodeShape.IsDeleted)
{
return;
}
diagram.AddToShapeMapping(nodeShape);
}
}
}
else if (args.ModelElement is ShapeElementContainsChildShapes)
{
ShapeElementContainsChildShapes con = args.ModelElement as ShapeElementContainsChildShapes;
if (con != null)
{
NodeShape childShape = con.ChildShape;
NodeShape parentShape = con.ParentShape;
if (childShape != null && parentShape != null)
{
if (childShape.IsDeleted)
{
return;
}
if (parentShape.IsDeleted)
{
return;
}
parentShape.AddToShapeMapping(childShape);
}
}
}
}
public override void RolePlayerChanged(RolePlayerChangedEventArgs e)
{
ShapeElementContainsChildShapes con = e.ElementLink as ShapeElementContainsChildShapes;
if (con == null)
{
return;
}
if (e.DomainRole.Id == ShapeElementContainsChildShapes.DomainClassId)
{
NodeShape childShape = con.ChildShape;
NodeShape parentShapeOld = e.OldRolePlayer as NodeShape;
NodeShape parentShapeNew = e.NewRolePlayer as NodeShape;
// delete from old parent shape
if (childShape != null && parentShapeOld != null)
{
if (childShape.IsDeleted)
{
return;
}
parentShapeOld.RemoveFromShapeMapping(childShape);
}
// add to new parent shape
if (childShape != null && parentShapeNew != null)
{
if (childShape.IsDeleted)
{
return;
}
parentShapeNew.AddToShapeMapping(childShape);
if (childShape.IsRelativeChildShape && childShape.MovementBehaviour == ShapeMovementBehaviour.PositionOnEdgeOfParent)
{
childShape.CorrectLocation();
}
if (!childShape.IsRelativeChildShape)
{
childShape.ResizeParentIfRequired();
}
}
}
}
public override void ElementDeleted(ElementDeletedEventArgs e)
{
base.ElementDeleted(e);
ShapeElementContainsChildShapes con = e.ModelElement as ShapeElementContainsChildShapes;
if (con != null)
{
NodeShape childShape = con.ChildShape;
NodeShape parentShape = con.ParentShape;
if (childShape != null && parentShape != null)
{
parentShape.RemoveFromShapeMapping(childShape);
}
}
}
/// <summary>
/// Called whenever a model element is deleted from the store.
/// </summary>
/// <param name="sender">ViewModelStore</param>
/// <param name="args">Event Arguments for notification of the removal of an ModelElement.</param>
private void OnElementDeleted(object sender, ElementDeletedEventArgs args)
{
if (args.ModelElement is DiagramHasChildren)
{
DiagramHasChildren con = args.ModelElement as DiagramHasChildren;
if (con != null)
{
NodeShape nodeShape = con.ChildShape;
Diagram diagram = con.Diagram;
if (nodeShape != null && diagram != null)
{
if (nodeShape.Element != null)
{
diagram.RemoveFromShapeMapping(nodeShape);
}
}
}
}
else if (args.ModelElement is ShapeElementContainsChildShapes)
{
ShapeElementContainsChildShapes con = args.ModelElement as ShapeElementContainsChildShapes;
if (con != null)
{
NodeShape childShape = con.ChildShape;
NodeShape parentShape = con.ParentShape;
if (childShape != null && parentShape != null)
{
if (childShape.Element != null)
{
parentShape.RemoveFromShapeMapping(childShape);
}
}
}
}
}
