internal void OnConnectionDragging(Point currentDragPoint, ConnectionViewModel connection)
{
var nearbyConnector = FindNearbyInputConnector(currentDragPoint);
connection.ToPosition = (nearbyConnector != null)
? nearbyConnector.Position
: currentDragPoint;
}
internal object OnConnectionDragStarted(OutputConnectorViewModel sourceConnector, Point currentDragPoint)
{
var connection = new ConnectionViewModel(sourceConnector)
{
FromPosition = currentDragPoint
};
Connections.Add(connection);
return(connection);
}
internal void OnConnectionDragCompleted(Point currentDragPoint, ConnectionViewModel newConnection, OutputConnectorViewModel sourceConnector)
{
var nearbyConnector = FindNearbyInputConnector(currentDragPoint);
if (nearbyConnector == null || sourceConnector.Owner == nearbyConnector.Owner)
{
Connections.Remove(newConnection);
return;
}
var existingConnection = nearbyConnector.Connection;
if (existingConnection != null)
{
Connections.Remove(existingConnection);
}
newConnection.To = nearbyConnector;
}
