private ControlledObserver<double> GetControlledObserverBrightness(IReceivesBrightness device)
{
ControlledObserver<double> observer;
if (!this.deviceObserversBrightness.TryGetValue(device, out observer))
{
//FIXME
//observer = device.GetBrightnessObserver();
//this.deviceObserversBrightness.Add(device, observer);
}
return observer;
}