private Label CreateOrRemoveLabel(ref Label currentLabel, LabelViewHelper viewHelper, string name, string cardinality, Action selectedChanged, Action <DragDeltaEventArgs> positionChanged, ContextMenu contextMenu, ConnectorPoint snapPoint = null, Connector snapConnector = null, EPlacementCenter placementCenter = EPlacementCenter.TopLeftCorner)
{
if (string.IsNullOrEmpty(name) && (cardinality == "1" || string.IsNullOrEmpty(cardinality)))
{
if (currentLabel != null)
{
if (selectedChanged != null)
{
currentLabel.SelectedChanged -= selectedChanged;
}
if (positionChanged != null)
{
currentLabel.PositionChanged -= positionChanged;
}
if (snapPoint != null)
{
currentLabel.UnSnap();
}
if (snapConnector != null)
{
currentLabel.UnSnap();
}
CreatedControls.Remove(currentLabel);
DiagramView.ExolutioCanvas.RemoveNode(currentLabel);
}
return(null);
}
if (currentLabel == null)
{
Point tmpPosition = viewHelper.Position;
currentLabel = new Label();
CreatedControls.Add(currentLabel);
DiagramView.ExolutioCanvas.AddNode(currentLabel);
currentLabel.PlacementCenter = placementCenter;
if (snapPoint != null)
{
currentLabel.SnapTo(snapPoint, true);
}
if (snapConnector != null)
{
snapConnector.SnapNodeToConnector(currentLabel);
}
currentLabel.X = viewHelper.X;
currentLabel.Y = viewHelper.Y;
if (selectedChanged != null)
{
currentLabel.SelectedChanged += selectedChanged;
}
if (positionChanged != null)
{
currentLabel.PositionChanged += positionChanged;
}
currentLabel.ContextMenu = contextMenu;
//UpdateView();
//viewHelper.SetPositionSilent(tmpPosition.X, tmpPosition.Y);
//currentLabel.X =
}
return(currentLabel);
}
public override void PutInDiagram(DiagramView diagramView, ViewHelper viewHelper)
{
base.PutInDiagram(diagramView, viewHelper);
if (parentChildUpdateBound)
{
PSMAssociation.PropertyChanged -= PSMAssociation_PropertyChanged_ForParentChildUpdate;
parentChildUpdateBound = false;
}
#if SILVERLIGHT
Connector = new Connector();
#else
Connector = new Connector()
{
EndCapStyle = EConnectorCapStyle.Arrow
};
#endif
NameLabel = new Label();
CardinalityLabel = new Label();
CreatedControls.Add(Connector);
CreatedControls.Add(NameLabel);
CreatedControls.Add(CardinalityLabel);
DiagramView.ExolutioCanvas.AddConnector(Connector);
Connector.Connect(SourceClassView.MainNode, TargetClassView.MainNode);
DiagramView.ExolutioCanvas.AddNode(NameLabel);
DiagramView.ExolutioCanvas.AddNode(CardinalityLabel);
NameLabel.PlacementCenter = EPlacementCenter.Center;
Connector.SnapNodeToConnector(NameLabel);
CardinalityLabel.SnapTo(Connector.EndPoint, true);
BindModelView();
NameLabel.SelectedChanged += NameLabel_SelectedChanged;
NameLabel.PositionChanged += NameLabel_PositionChanged;
CardinalityLabel.PositionChanged += CardinalityLabel_PositionChanged;
Connector.SelectedChanged += Connector_SelectedChanged;
Connector.MouseEnter += Connector_MouseEnter;
Connector.MouseLeave += Connector_MouseLeave;
}