/// <summary>
/// Constructor used when only the start and end <see cref="PortModel"/> are known.
/// </summary>
/// <param name="start">The start <see cref="PortModel"/>.</param>
/// <param name="end">The end <see cref="PortModel"/>.</param>
/// <param name="guid">The unique identifier for the <see cref="ConnectorModel"/>.</param>
public ConnectorModel(PortModel start, PortModel end, Guid guid)
{
Start = start;
Start.Connect(this);
Connect(end);
GUID = guid;
}
private void Connect(PortModel p)
{
//test if the port that you are connecting too is not the start port or the end port
//of the current connector
if (p.Equals(Start) || p.Equals(End))
{
return;
}
//if the selected connector is also an output connector, return false
//output ports can't be connected to eachother
if (p.PortType == PortType.Output)
{
return;
}
//test if the port that you are connecting to is an input and
//already has other connectors
if (p.PortType == PortType.Input && p.Connectors.Count > 0)
{
p.Disconnect(p.Connectors[0]);
}
//turn the line solid
End = p;
if (End != null)
{
p.Connect(this);
}
return;
}