--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugin/poi/landmarks/overlay/inc/Magnetometer.h	Fri Jun 25 12:50:05 2010 +0200
@@ -0,0 +1,79 @@
+/*
+ * Name        : Magnetometer.h
+ * Description : Magnetometer helper class
+ * Project     : This file is part of OpenMAR, an Open Mobile Augmented Reality browser
+ * Website     : http://OpenMAR.org
+ *
+ * Copyright (c) 2010 David Caabeiro
+ *
+ * All rights reserved. This program and the accompanying materials are made available 
+ * under the terms of the Eclipse Public License v1.0 which accompanies this 
+ * distribution, and is available at http://www.eclipse.org/legal/epl-v10.html
+ *
+ */
+
+#ifndef MAGNETOMETER_H_
+#define MAGNETOMETER_H_
+
+#include "Vector3d.h"
+
+#include <SensrvDataListener.h>
+#include <SensrvPropertyListener.h>
+
+class CSensrvChannel;
+
+/**
+ * @brief Wrapper class over sensor channel to retrieve data from 3-axis magnetometer
+ * 
+ * This class also implements a simple lowpass filter
+ */
+class CMagnetometer : public CBase,
+            public MSensrvDataListener,
+            public MSensrvPropertyListener
+{
+public:
+    static CMagnetometer* NewL();
+    ~CMagnetometer();
+
+protected:
+    CMagnetometer();
+    void ConstructL();
+
+public:
+    void StartL();
+    void Stop();
+
+    const Vector3d GetValue() const { return Vector3d(iX, iY, iZ); }
+
+    enum TCalibration {
+        ENone,
+        ELow,
+        EModerate,
+        EHigh
+    };
+
+    TCalibration Calibration() const { return iCalibration; }
+
+protected:
+    // From MSensrvDataListener
+    void DataReceived(CSensrvChannel& aChannel, TInt aCount, TInt aDataLost);
+    void DataError(CSensrvChannel& aChannel, TSensrvErrorSeverity aError);
+    void GetDataListenerInterfaceL(TUid aInterfaceUid, TAny*& aInterface);
+
+    // From MSensrvPropertyListener
+    void PropertyChanged(CSensrvChannel& aChannel, const TSensrvProperty& aChangedProperty);
+    void PropertyError(CSensrvChannel& aChannel, TSensrvErrorSeverity aError);
+    void SetPropertySuccessIndicationChanged(TSetPropertySuccessIndicator aIndication);
+    void GetPropertyListenerInterfaceL(TUid aInterfaceUid, TAny*& aInterface);
+
+private:
+    CSensrvChannel* iSensorChannel;
+
+    TReal iX;
+    TReal iY;
+    TReal iZ;
+
+    TCalibration iCalibration;
+};
+
+#endif