void UpdateAttachPointOrder()
{
foreach (var direction in AttachPoints)
{
List <Tuple <AttachPoint, NodeBaseViewModel> > apByPositionOfConnectedTo =
new List <Tuple <AttachPoint, NodeBaseViewModel> >();
foreach (var ap in direction.Value)
{
ConnectionViewModel cvm = ap.Connection;
if (cvm != null)
{
NodeBaseViewModel connTo = (cvm.AttachPointFrom == ap) ? cvm.To : cvm.From;
apByPositionOfConnectedTo.Add(Tuple.Create(ap, connTo));
}
}
int n = 0;
if (direction.Key == AttachDirection.Left || direction.Key == AttachDirection.Right)
{
foreach (var tuple in apByPositionOfConnectedTo.OrderBy(a => a.Item2.Location.Y))
{
tuple.Item1.Order = n++;
}
}
else if (direction.Key == AttachDirection.Top || direction.Key == AttachDirection.Bottom)
{
foreach (var tuple in apByPositionOfConnectedTo.OrderBy(a => a.Item2.Location.X))
{
tuple.Item1.Order = n++;
}
}
}
}
public void SelectConnection(ConnectionViewModel edge)
{
SelectedCommand.HandleConnectionClick(edge);
if (ConnectionSelected != null)
{
ConnectionSelected(this, edge);
}
}
internal virtual void RaiseConnectionRemoved(ConnectionViewModel connection)
{
Connections.Remove(connection);
if (isInitialized)
{
OnConnectionRemoved(connection);
}
}
internal void RaiseConnectionAdded(ConnectionViewModel connection)
{
Connections.Add(connection);
if (isInitialized)
{
OnConnectionAdded(connection);
}
}
public AttachPoint Attach(AttachDirection direction, ConnectionViewModel connection, NodeBaseViewModel associatedControl)
{
AttachPoint attachPoint = new AttachPoint(direction, connection, associatedControl);
attachPoint.DirectionChanging += attachPoint_DirectionChanging;
AttachPoints[direction].Add(attachPoint);
UpdateAttachPoints();
return(attachPoint);
}
public void RemoveConnection(ConnectionViewModel edge)
{
edge.Dispose();
if (edge.FromDescriptor != null)
{
AttachDescriptors.Remove(edge.FromDescriptor);
}
if (edge.ToDescriptor != null)
{
AttachDescriptors.Remove(edge.ToDescriptor);
}
Edges.Remove(edge);
edge.From.RaiseConnectionRemoved(edge);
edge.To.RaiseConnectionRemoved(edge);
}
protected virtual void OnConnectionRemoved(ConnectionViewModel connection)
{
}
protected virtual void OnConnectionAdded(ConnectionViewModel connection)
{
}
public AttachPoint Attach(AttachDirection direction, ConnectionViewModel connection, NodeBaseViewModel node)
{
return(AttachPlacement.Attach(direction, connection, node));
}
public AttachPoint(AttachDirection direction, ConnectionViewModel connection, NodeBaseViewModel associatedControl)
{
Side = direction;
this.Connection = connection;
this.Control = associatedControl;
}
