private void AutoConnectShapes()
{
IShapeBase outputShape = null;
foreach (var inputShape in this.SelectedShapes)
{
// If there is an outputShape and the relevant pins are enabled, connect them.
if (outputShape != null && inputShape.IsInputPinEnabled && outputShape.IsOutputPinEnabled)
{
ConnectionShape connectionShape = new ConnectionShape(inputShape, outputShape);
if (this.ConnectEBCs(connectionShape))
{
this.SetConnectionShapes(connectionShape);
this.AddShape(connectionShape);
}
else
{
this.IsMultiSelect = false;
}
}
outputShape = inputShape;
}
this.Out_PaintRequest();
}
private bool ConnectEBCs(ConnectionShape connection)
{
try
{
IShapeBase outputShape = connection.OutputShape;
IShapeBase inputShape = connection.InputShape;
IEBCBase outputEBC = this.ShapeToEBC[outputShape.ID];
IEBCBase inputEBC = this.ShapeToEBC[inputShape.ID];
this.Out_ConnectEBCs(new ConnectEBCMessage(outputEBC, inputEBC));
return true;
}
catch (ShapeConnectionException shapeConnectionException)
{
this.CancelConnection();
this.OnOut_ReportError(shapeConnectionException);
return false;
}
catch (CircularConnectionException circularConnectionException)
{
this.CancelConnection();
this.OnOut_ReportError(circularConnectionException);
return false;
}
}
private void DisconnectEBCs(ConnectionShape connectionShape)
{
IShapeBase outputShape = connectionShape.OutputShape;
IShapeBase inputShape = connectionShape.InputShape;
IEBCBase outputEBC = this.ShapeToEBC[outputShape.ID];
IEBCBase inputEBC = this.ShapeToEBC[inputShape.ID];
this.Out_DisconnectEBCs(new DisconnectEBCMessage(outputEBC, inputEBC));
}
private void SetConnectionShapes(ConnectionShape connectionShape)
{
// All start-connections: They are the start of an ebc message.
if (!this.ConnectionStartShapes.ContainsKey(connectionShape.OutputShape))
{
List<ConnectionShape> connections = new List<ConnectionShape>();
connections.Add(connectionShape);
this.ConnectionStartShapes.Add(connectionShape.OutputShape, connections);
}
else
{
this.ConnectionStartShapes[connectionShape.OutputShape].Add(connectionShape);
}
// All end-connections: They are the target of an ebc message.
if (!this.ConnectionEndShapes.ContainsKey(connectionShape.InputShape))
{
List<ConnectionShape> connections = new List<ConnectionShape>();
connections.Add(connectionShape);
this.ConnectionEndShapes.Add(connectionShape.InputShape, connections);
}
else
{
this.ConnectionEndShapes[connectionShape.InputShape].Add(connectionShape);
}
}