/// <summary>
/// Delete the node from the view-model.
/// Also deletes any connections to or from the node.
/// </summary>
public void DeleteNode(Block node)
{
//
// Remove all connections attached to the node.
//
this.Network.Connections.RemoveRange(node.AttachedConnections);
//
// Remove the node from the network.
//
this.Network.Nodes.Remove(node);
}
/// <summary>
/// Create a node and add it to the view-model.
/// </summary>
public Block CreateNode(string name, Point nodeLocation)
{
var node = new Block(name);
node.X = nodeLocation.X;
node.Y = nodeLocation.Y;
//
// Create the default set of four connectors.
//
node.Connectors.Add(new ConnectorViewModel());
node.Connectors.Add(new ConnectorViewModel());
node.Connectors.Add(new ConnectorViewModel());
node.Connectors.Add(new ConnectorViewModel());
//
// Add the new node to the view-model.
//
this.Network.Nodes.Add(node);
return node;
}