void BeginShiftReconnections(Guid nodeId, int portIndex, PortType portType)
{
if (portType == PortType.Input)
{
return; //only handle multiple connections when the port selected is an output port
}
var node = CurrentWorkspace.GetModelInternal(nodeId) as NodeModel;
if (node == null)
{
return;
}
PortModel selectedPort = node.OutPorts[portIndex];
var connectorsForDeletion = new List <ModelBase>();
int numOfConnectors = selectedPort.Connectors.Count;
if (numOfConnectors == 0)
{
return;
}
activeStartPorts = new PortModel[numOfConnectors];
for (int i = 0; i < numOfConnectors; i++)
{
ConnectorModel connector = selectedPort.Connectors[i];
connectorsForDeletion.Add(connector);
activeStartPorts[i] = connector.End;
}
CurrentWorkspace.SaveModelsForUndo(connectorsForDeletion);
for (int i = 0; i < numOfConnectors; i++) //delete the connectors
{
selectedPort.Connectors[0].Delete();
}
return;
}
void BeginConnection(Guid nodeId, int portIndex, PortType portType)
{
bool isInPort = portType == PortType.Input;
activeStartPorts = null;
var node = CurrentWorkspace.GetModelInternal(nodeId) as NodeModel;
if (node == null)
{
return;
}
PortModel portModel = isInPort ? node.InPorts[portIndex] : node.OutPorts[portIndex];
// Test if port already has a connection, if so grab it and begin connecting
// to somewhere else (we don't allow the grabbing of the start connector).
if (portModel.Connectors.Count > 0 && portModel.Connectors[0].Start != portModel)
{
activeStartPorts = new PortModel[] { portModel.Connectors[0].Start };
// Disconnect the connector model from its start and end ports
// and remove it from the connectors collection. This will also
// remove the view model.
ConnectorModel connector = portModel.Connectors[0];
if (CurrentWorkspace.Connectors.Contains(connector))
{
var models = new List <ModelBase> {
connector
};
CurrentWorkspace.SaveModelsForUndo(models);
connector.Delete();
}
}
else
{
activeStartPorts = new PortModel[] { portModel };
}
}
