Refactored. Timer task memory leaks are to be fixed.

GazeWebSocketServer/Program.cs

@@ -16,18 +16,17 @@ namespace GazeWebSocketServer
             if (args.Length > 0 && args[0] == "-d")
             if (args.Length > 0 && args[0] == "-d")
             {
             {
                 tracker = new FakeTracker(600);
                 tracker = new FakeTracker(600);
-                tracker.GazeDataAvailable += OnGazeDataAvailable; //TODO: Extend interface usage
-                //tracker.GazeDataProcessor.OutputFrequency = config.OutputFrequency;
             }
             }
             else
             else
             {
             {
-                TobiiEyeTracker tobiiEyeTracker = new TobiiEyeTracker(config.TrackerSerialNumber);
-                tobiiEyeTracker.ConnectionEvent += OnConnectionEstablished;
-                tobiiEyeTracker.ConnectionTimeout += OnConnectionTimeout;
-                tobiiEyeTracker.GazeDataAvailable += OnGazeDataAvailable;
-                tobiiEyeTracker.Connect();
+                tracker = new TobiiEyeTracker(config.TrackerSerialNumber);
             }
             }
 
 
+            tracker.ConnectionEvent += OnConnectionEstablished;
+            tracker.ConnectionTimeout += OnConnectionTimeout;
+            tracker.GazeDataAvailable += OnGazeDataAvailable;
+            tracker.Connect();
+
             gazeServer = new GazeServer(config.WebSocketPort, config.WebSocketEndpoint);
             gazeServer = new GazeServer(config.WebSocketPort, config.WebSocketEndpoint);
             gazeServer.Start();
             gazeServer.Start();
             Console.ReadLine();
             Console.ReadLine();
@@ -52,7 +51,8 @@ namespace GazeWebSocketServer
         {
         {
             Console.WriteLine($"Tracker {sender.SerialNumber} connected.");
             Console.WriteLine($"Tracker {sender.SerialNumber} connected.");
             ConfigurationData config = ConfigurationData.ParseToObject();
             ConfigurationData config = ConfigurationData.ParseToObject();
-            sender.SetTrackingFrequency(config.TrackerFrequency);
+            sender.TrackingFrequency = config.TrackerFrequency;
+            sender.OutputFrequency = config.OutputFrequency;
         }
         }
     }
     }
 }
 }
\ No newline at end of file

TrackerBridge/DSP/GazeDecimator.cs

@@ -16,6 +16,7 @@ namespace TrackerBridge.DSP
         private readonly Object outputLock = new Object();
         private readonly Object outputLock = new Object();
         private readonly Object valueCountLock = new Object();
         private readonly Object valueCountLock = new Object();
         private Int64 valueCount;
         private Int64 valueCount;
+        private Task timerTask;
 
 
         private Int64 ValueCount {
         private Int64 ValueCount {
             get {
             get {
@@ -47,10 +48,10 @@ namespace TrackerBridge.DSP
             }
             }
         }
         }
 
 
-        public GazeDecimator(Single outputFrequency)
+        public GazeDecimator(GazeDataProcessor dataProcessor)
         {
         {
-            this.outputFrequency = outputFrequency;
-            Task.Run(() => TriggerOutput(outputFrequency));
+            outputFrequency = dataProcessor.OutputFrequency;
+            Task timerTask = Task.Run(() => TriggerOutput(outputFrequency));
         }
         }
         public void Input(GazeData input, Object sender = null)
         public void Input(GazeData input, Object sender = null)
         {
         {
@@ -89,5 +90,13 @@ namespace TrackerBridge.DSP
             timer.AutoReset = true;
             timer.AutoReset = true;
             timer.Start();
             timer.Start();
         }
         }
+
+        public void Update(GazeDataProcessor dataProcessor)
+        {
+            outputFrequency = dataProcessor.OutputFrequency;
+            //timerTask.Dispose(); //TODO: Implement proper cancellation
+            //TODO: Fix memory leak
+            timerTask = Task.Run(() => TriggerOutput(outputFrequency));
+        }
     }
     }
 }
 }

TrackerBridge/DSP/IGazeFilter.cs

@@ -11,5 +11,6 @@ namespace TrackerBridge.DSP
         event GazeDataHandler OutputAvailable;
         event GazeDataHandler OutputAvailable;
         void Input(GazeData input, Object sender = null);
         void Input(GazeData input, Object sender = null);
         void Reset();
         void Reset();
+        void Update(GazeDataProcessor dataProcessor);
     }
     }
 }
 }

TrackerBridge/FakeTracker.cs

@@ -8,30 +8,48 @@ namespace TrackerBridge
 {
 {
     public class FakeTracker : IBridgeTracker
     public class FakeTracker : IBridgeTracker
     {
     {
-
+        public event ConnectionEventHandler ConnectionEvent;
+        public event ConnectionEventHandler ConnectionTimeout;
         public event GazeDataHandler GazeDataAvailable {
         public event GazeDataHandler GazeDataAvailable {
             add {
             add {
-                GazeDataProcessor.GazeDataProcessed += value;
+                gazeDataProcessor.GazeDataProcessed += value;
             }
             }
             remove {
             remove {
-                GazeDataProcessor.GazeDataProcessed -= value;
+                gazeDataProcessor.GazeDataProcessed -= value;
             }
             }
         }
         }
-        public event EventHandler<Single> TrackingFrequencyChanged;
 
 
+        private readonly GazeDataProcessor gazeDataProcessor;
+        private Task timerTask;
         private Single trackerFrequency;
         private Single trackerFrequency;
-        public String SerialNumber => throw new NotImplementedException();
 
 
-        public GazeDataProcessor GazeDataProcessor { get; }
+        public Single OutputFrequency {
+            get => gazeDataProcessor.OutputFrequency;
+            set => gazeDataProcessor.OutputFrequency = value;
+        }
+        public String SerialNumber => "Fake";
+        public Single TrackingFrequency {
+            get {
+                return trackerFrequency;
+            }
+            set {
+                //timerTask.Dispose(); //TODO: Proper cancellation
+                //TODO: Fix memory leak
+                timerTask = Task.Run(() => SimulateGazeDataHz(value));
+            }
+        }
 
 
         public FakeTracker(Single frequency)
         public FakeTracker(Single frequency)
         {
         {
             trackerFrequency = frequency;
             trackerFrequency = frequency;
-            GazeDataProcessor = new GazeDataProcessor(this);
-            //GazeDataProcessor.OutputFrequency = 1;
-            Task.Run(() => SimulateGazeDataHz(frequency));
+            gazeDataProcessor = new GazeDataProcessor();
         }
         }
 
 
+        public void Connect()
+        {
+            timerTask = Task.Run(() => SimulateGazeDataHz(trackerFrequency));
+            ConnectionEvent?.Invoke(this);
+        }
         private void SimulateGazeDataHz(Single frequency)
         private void SimulateGazeDataHz(Single frequency)
         {
         {
             System.Timers.Timer timer = new System.Timers.Timer(1000.0 / frequency); //TODO: Implement Dispose
             System.Timers.Timer timer = new System.Timers.Timer(1000.0 / frequency); //TODO: Implement Dispose
@@ -39,19 +57,10 @@ namespace TrackerBridge
             {
             {
                 Point mousePosition = Control.MousePosition;
                 Point mousePosition = Control.MousePosition;
                 GazeData data = new GazeData(mousePosition.X, mousePosition.Y, mousePosition.X, mousePosition.Y, 0, 0);
                 GazeData data = new GazeData(mousePosition.X, mousePosition.Y, mousePosition.X, mousePosition.Y, 0, 0);
-                GazeDataProcessor.Process(this, data);
+                gazeDataProcessor.Process(this, data);
             };
             };
             timer.AutoReset = true;
             timer.AutoReset = true;
             timer.Start();
             timer.Start();
         }
         }
-
-        public Single GetTrackingFrequency()
-        {
-            return trackerFrequency;
-        }
-        public void SetTrackingFrequency(Single value)
-        {
-            throw new NotImplementedException();
-        }
     }
     }
 }
 }

TrackerBridge/GazeDataProcessor.cs

@@ -33,13 +33,13 @@ namespace TrackerBridge
             }
             }
         }
         }
 
 
-        public GazeDataProcessor(IBridgeTracker tracker)
+        public GazeDataProcessor()
         {
         {
-            tracker.TrackingFrequencyChanged += OnTrackingFrequencyChanged;
+            outputFrequency = 60; //Default
             screenHeight = Convert.ToSingle(SystemParameters.PrimaryScreenHeight);
             screenHeight = Convert.ToSingle(SystemParameters.PrimaryScreenHeight);
             screenWidth = Convert.ToSingle(SystemParameters.PrimaryScreenWidth);
             screenWidth = Convert.ToSingle(SystemParameters.PrimaryScreenWidth);
             gazeFilters = new IGazeFilter[1];
             gazeFilters = new IGazeFilter[1];
-            gazeFilters[0] = new GazeDecimator(60); //TODO: Refactor frequency passthrough
+            gazeFilters[0] = new GazeDecimator(this); //TODO: Refactor frequency passthrough
 
 
             //Chain filters
             //Chain filters
             for(Int32 index= 0; index < gazeFilters.Length-1; index++)
             for(Int32 index= 0; index < gazeFilters.Length-1; index++)
@@ -52,6 +52,7 @@ namespace TrackerBridge
         {
         {
             foreach (IGazeFilter filter in gazeFilters)
             foreach (IGazeFilter filter in gazeFilters)
             {
             {
+                filter.Update(this);
                 filter.Reset();
                 filter.Reset();
             }
             }
         }
         }
@@ -71,16 +72,5 @@ namespace TrackerBridge
         {
         {
             gazeFilters[0].Input(input);
             gazeFilters[0].Input(input);
         }
         }
-        private void OnTrackingFrequencyChanged(Object sender, Single frequency)
-        {
-            foreach(IGazeFilter filter in gazeFilters)
-            {
-                if(filter.GetType() == typeof(GazeDecimator))
-                {
-                    GazeDecimator decimator = (GazeDecimator)filter;
-                    throw new NotImplementedException();
-                }
-            }
-        }
     }
     }
 }
 }

TrackerBridge/IBridgeTracker.cs

@@ -11,12 +11,14 @@ namespace TrackerBridge
 
 
     public interface IBridgeTracker
     public interface IBridgeTracker
     {
     {
+        event ConnectionEventHandler ConnectionEvent;
+        event ConnectionEventHandler ConnectionTimeout;
         event GazeDataHandler GazeDataAvailable;
         event GazeDataHandler GazeDataAvailable;
-        event EventHandler<Single> TrackingFrequencyChanged;
-        GazeDataProcessor GazeDataProcessor { get;}
+
+        Single OutputFrequency { get; set; }
         String SerialNumber { get; }
         String SerialNumber { get; }
+        Single TrackingFrequency { get; set; } 
 
 
-        Single GetTrackingFrequency();
-        void SetTrackingFrequency(Single value);
+        void Connect();
     }
     }
 }
 }

TrackerBridge/TobiiEyeTracker.cs

@@ -13,55 +13,55 @@ namespace TrackerBridge
         public event ConnectionEventHandler ConnectionTimeout;
         public event ConnectionEventHandler ConnectionTimeout;
         public event GazeDataHandler GazeDataAvailable {
         public event GazeDataHandler GazeDataAvailable {
             add {
             add {
-                GazeDataProcessor.GazeDataProcessed += value;
+                gazeDataProcessor.GazeDataProcessed += value;
             }
             }
             remove {
             remove {
-                GazeDataProcessor.GazeDataProcessed -= value;
+                gazeDataProcessor.GazeDataProcessed -= value;
             }
             }
         }
         }
-        public event EventHandler<Single> TrackingFrequencyChanged;
 
 
+        private readonly GazeDataProcessor gazeDataProcessor;
         private IEyeTracker eyeTracker = null;
         private IEyeTracker eyeTracker = null;
 
 
-        public GazeDataProcessor GazeDataProcessor { get; }
         public Boolean IsConnected { get; private set; } = false;
         public Boolean IsConnected { get; private set; } = false;
-        public String SerialNumber { get; private set; } = null;
-
-        public TobiiEyeTracker()
-        {
-            GazeDataProcessor = new GazeDataProcessor(this);
-        }
-
-        public TobiiEyeTracker(String serialNumber) : this()
-        {
-            SerialNumber = serialNumber;
+        public Single OutputFrequency {
+            get => gazeDataProcessor.OutputFrequency;
+            set => gazeDataProcessor.OutputFrequency = value;
         }
         }
-        public void Connect()
-        {
-            Task task = new Task(() => InitiateConnection());
-            task.Start();
-        }
-
-        public Single GetTrackingFrequency()
-        {
+        public String SerialNumber { get; private set; } = null;
+        public Single TrackingFrequency {
+            get {
                 if (eyeTracker != null)
                 if (eyeTracker != null)
                 {
                 {
                     return eyeTracker.GetGazeOutputFrequency();
                     return eyeTracker.GetGazeOutputFrequency();
                 }
                 }
                 else
                 else
                 {
                 {
-                throw new NullReferenceException();
+                    return 0f;
                 }
                 }
             }
             }
-
-        public void SetTrackingFrequency(float value)
-        {
+            set {
                 if (eyeTracker != null && eyeTracker.GetAllGazeOutputFrequencies().Contains(value))
                 if (eyeTracker != null && eyeTracker.GetAllGazeOutputFrequencies().Contains(value))
                 {
                 {
                     eyeTracker.SetGazeOutputFrequency(value);
                     eyeTracker.SetGazeOutputFrequency(value);
                 }
                 }
             }
             }
+        }
+
+        public TobiiEyeTracker()
+        {
+            gazeDataProcessor = new GazeDataProcessor();
+        }
+        public TobiiEyeTracker(String serialNumber) : this()
+        {
+            SerialNumber = serialNumber;
+        }
 
 
+        public void Connect()
+        {
+            Task task = new Task(() => InitiateConnection());
+            task.Start();
+        }
         private void InitiateConnection()
         private void InitiateConnection()
         {
         {
             DateTime time = DateTime.Now;
             DateTime time = DateTime.Now;
@@ -98,16 +98,10 @@ namespace TrackerBridge
                     ConnectionTimeout?.Invoke(this);
                     ConnectionTimeout?.Invoke(this);
                 }
                 }
             }
             }
-            eyeTracker.GazeDataReceived += GazeDataProcessor.Process;
-            eyeTracker.GazeOutputFrequencyChanged += OnGazeOutputFrequencyChanged;
+            eyeTracker.GazeDataReceived += gazeDataProcessor.Process;
             SerialNumber = eyeTracker.SerialNumber;
             SerialNumber = eyeTracker.SerialNumber;
-            SetTrackingFrequency(600f);
+            TrackingFrequency = 600f;
             ConnectionEvent?.Invoke(this);
             ConnectionEvent?.Invoke(this);
         }
         }
-
-        private void OnGazeOutputFrequencyChanged(Object sender, GazeOutputFrequencyEventArgs e)
-        {
-            TrackingFrequencyChanged?.Invoke(this, e.GazeOutputFrequency);
-        }
     }
     }
 }
 }
\ No newline at end of file