/// <summary>
/// Called when the user has finished dragging out the new connection.
/// </summary>
public void ConnectionDragCompleted(ConnectionViewModel newConnection, ConnectorViewModel connectorDraggedOut, ConnectorViewModel connectorDraggedOver)
{
if (connectorDraggedOver == null)
{
//
// The connection was unsuccessful.
// Maybe the user dragged it out and dropped it in empty space.
//
this.Network.Connections.Remove(newConnection);
return;
}
//
// Only allow connections from output connector to input connector (ie each
// connector must have a different type).
// Also only allocation from one node to another, never one node back to the same node.
//
bool connectionOk = connectorDraggedOut.ParentNode != connectorDraggedOver.ParentNode &&
connectorDraggedOut.Type != connectorDraggedOver.Type &&
connectorDraggedOver.AttachedConnections.Count == 0;
if (!connectionOk)
{
//
// Connections between connectors that have the same type,
// eg input -> input or output -> output, are not allowed,
// Remove the connection.
//
this.Network.Connections.Remove(newConnection);
return;
}
//
// The user has dragged the connection on top of another valid connector.
//
//
// Remove any existing connection between the same two connectors.
//
var existingConnection = FindConnection(connectorDraggedOut, connectorDraggedOver);
if (existingConnection != null)
{
this.Network.Connections.Remove(existingConnection);
}
//
// Finalize the connection by attaching it to the connector
// that the user dragged the mouse over.
//
if (newConnection.DestConnector == null)
{
newConnection.DestConnector = connectorDraggedOver;
}
else
{
newConnection.SourceConnector = connectorDraggedOver;
}
if (newConnection.DestConnector != null && newConnection.SourceConnector != null)
{
LibnoiseNode sourceNode = newConnection.SourceConnector.ParentNode.Module;
LibnoiseNode destinationNode = newConnection.DestConnector.ParentNode.Module;
ModuleBase sourceModule = newConnection.SourceConnector.ParentNode.Module.LibnoiseModule;
ModuleBase destinationModule = newConnection.DestConnector.ParentNode.Module.LibnoiseModule;
// get destination type, connector name, assign to correct module
if (newConnection.DestConnector.Name.Equals("Input"))
{
destinationModule.Modules[0] = sourceModule;
destinationNode.Inputs[0] = sourceNode;
}
else if (newConnection.DestConnector.Name.Equals("Left"))
{
destinationModule.Modules[0] = sourceModule;
destinationNode.Inputs[0] = sourceNode;
}
else if (newConnection.DestConnector.Name.Equals("Right"))
{
destinationModule.Modules[1] = sourceModule;
destinationNode.Inputs[1] = sourceNode;
}
else if (newConnection.DestConnector.Name.Equals("Operator"))
{
destinationModule.Modules[2] = sourceModule;
destinationNode.Inputs[2] = sourceNode;
}
else if (newConnection.DestConnector.Name.Equals("Primary"))
{
destinationModule.Modules[0] = sourceModule;
destinationNode.Inputs[0] = sourceNode;
}
else if (newConnection.DestConnector.Name.Equals("Secondary"))
{
destinationModule.Modules[1] = sourceModule;
destinationNode.Inputs[1] = sourceNode;
}
else if (newConnection.DestConnector.Name.Equals("Controller"))
{
destinationModule.Modules[2] = sourceModule;
destinationNode.Inputs[2] = sourceNode;
}
else if (newConnection.DestConnector.Name.Equals("X"))
{
destinationModule.Modules[1] = sourceModule;
destinationNode.Inputs[1] = sourceNode;
}
else if (newConnection.DestConnector.Name.Equals("Y"))
{
destinationModule.Modules[2] = sourceModule;
destinationNode.Inputs[2] = sourceNode;
}
else if (newConnection.DestConnector.Name.Equals("Z"))
{
destinationModule.Modules[3] = sourceModule;
destinationNode.Inputs[3] = sourceNode;
}
}
}
public NodeViewModel(LibnoiseNode module)
{
this.Module = module;
this.name = ModuleType;
}