/// <summary>
/// Remove a {@link TETCSharpClient.IGazeListener} from the TET C# client.
/// </summary>
/// <returns>True if succesfully removed, false otherwise</returns>
/// <param name="listener"/>The {@link TETCSharpClient.IGazeListener} instance to remove</param>
public bool RemoveGazeListener(IGazeListener listener)
{
bool result = false;
lock (((ICollection)gazeListeners).SyncRoot)
{
if (gazeListeners.Contains(listener))
{
result = gazeListeners.Remove(listener);
}
if (gazeListeners.Count == 0)
{
if (null != gazeBroadcaster)
{
gazeBroadcaster.Stop();
gazeBroadcaster = null;
}
lock (((ICollection)queueGazeData).SyncRoot)
{
queueGazeData.Clear();
}
}
}
return(result);
}
/// <summary>
/// Clear all attached listeners, clears GazeData queue and stop broadcating
/// </summary>
public void ClearListeners()
{
lock (((ICollection)gazeListeners).SyncRoot)
{
gazeListeners.Clear();
}
lock (((ICollection)calibrationStateListeners).SyncRoot)
{
calibrationStateListeners.Clear();
}
lock (((ICollection)trackerStateListeners).SyncRoot)
{
trackerStateListeners.Clear();
}
lock (((ICollection)queueGazeData).SyncRoot)
{
queueGazeData.Clear();
}
if (null != gazeBroadcaster)
{
gazeBroadcaster.Stop();
gazeBroadcaster = null;
}
}
/// <summary>
/// Adds a {@link TETCSharpClient.IGazeListener} to the TET C# client. This listener
/// will recieve {@link TETCSharpClient.Data.GazeData} updates when available
/// </summary>
/// <param name="listener"/>The {@link TETCSharpClient.IGazeListener} instance to add</param>
public void AddGazeListener(IGazeListener listener)
{
if (null != listener)
{
lock (((ICollection)gazeListeners).SyncRoot)
{
if (gazeListeners.Count == 0)
{
//init wait handles
events = new WaitHandleWrap();
//init broadcasting routines,
gazeBroadcaster = new GazeBroadcaster(queueGazeData, gazeListeners, events);
gazeBroadcaster.Start();
}
if (!gazeListeners.Contains(listener))
{
gazeListeners.Add(listener);
}
}
}
}
