diff -r 4c4ed41530db -r 73f6c2762ffe locationsystemui/locationsysui/possettings/possettingsengine/inc/possettingsengine.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/locationsystemui/locationsysui/possettings/possettingsengine/inc/possettingsengine.h	Thu May 27 13:18:17 2010 +0300
@@ -0,0 +1,137 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Implementation of positioning settings engine class. 
+*
+*/
+
+#ifndef POSITIONINGSETTINGS_ENGINE_H
+#define POSITIONINGSETTINGS_ENGINE_H
+
+
+#include "possettingscommon.h"
+#include "possettingsengineprivate.h"
+#include <QObject.h>
+#include <qglobal.h>
+
+/**
+ * PositioningSettingsEngine class provides an interface that abstracts client
+ * from different GPS and wireless positioning techniques. This exposes methods 
+ * to perform operations on the positioning techniques.
+ */
+
+class PosSettingsEngine : public QObject,
+                               public PositionTechnologyChangeObserver
+    {
+    Q_OBJECT
+public:
+    /**
+     * Default constructor
+     * This throws an error if construction fails.
+     */
+    PosSettingsEngine();
+    
+    /**
+     * Destructor 
+     */
+    ~PosSettingsEngine();
+    
+    /**
+     * Returns whether specified position technology is available.
+     * @param[in] posTechnology Position technology of interest.
+     * @return true if specified position technology is available,
+     *         false if it is not available.
+     */
+    bool isPositionTechnologyAvailable( PositionTechnology posTechnology );
+    
+    /**
+     * Sets the state of position technology.
+     * @param[in] posTechnologyState Resultant state of the position technology 
+     * after this operation.
+     * @param[in] posTechnology State of position technology to be changed.
+     * @return KErrNone if successful,
+     *         KErrNotFound if specified position technology is not available
+     *         Otherwise, standard error code is returned,
+     *         KErrServerBusy, etc.. 
+     */
+    int setPositionTechnologyState( State posTechnologyState,
+                                    PositionTechnology posTechnology );
+    
+    /**
+     * Returns whether specified position technology is enabled. It is recemonded 
+     * to use this method after checking the availability of the position technology
+     * using isPositionTechnologyAvailable method.
+     * @param[in] posTechnology Position technology of interest.
+     * @return true if specified position technology is enabled,
+     *         false if it is disabled.
+     */
+    bool isPositionTechnologyEnabled( PositionTechnology posTechnology );
+
+    /**
+     * Sets the state of back ground positioning.
+     * @param[in] backGroundPosState Resultant state of back ground positioning.
+     * @return KErrNone if successful,
+     *         KErrNotSupported if none of the position type are available,
+     *         KErrArgument if none of the position type are enabled
+     *         otherwise, standard error code is returned,
+     *         KErrServerBusy, etc.. 
+     */
+    int setBackGroundPositioningState( State backGroundPosState );
+     
+    /**
+     * Returns whether back ground positioning is enabled. It is recemonded 
+     * to use this method after checking the availability of the position type
+     * using isPositionTypeAvailable method.
+     * @return true if back ground positioning is enabled,
+     *         false if it is disabled.
+     */
+    bool isBackGroundPositioningEnabled();
+    
+    /**
+     * It will set status of background positioning in CR key
+     * It is required to retain old status when checkbox is inserted/removed
+     * 
+     * status [in] - The status of the background positioning in CR key
+     */
+    void setCRBackgroundPositioningStatus(State backGroundPosState);
+  
+   /**
+    * It will return status of background positioning in CR key
+    * It is required to retain old status when checkbox is inserted/removed.
+    * 
+    * returns true if enabled or false if disabled
+    */
+    bool cRBackgroundPositioningStatus();
+
+public: // from PositionTechnologyChangeObserver
+    void handlePositionTechnologyChange();
+
+private:
+	  signals:
+    /**
+     * This signal is emitted when there is change in any of position
+     * technology wrt to its availabilty, state etc.. 
+     */
+    void positionTechnologyChange();
+    
+private:      
+    Q_DECLARE_PRIVATE_D(d_ptr, PosSettingsEngine)
+private: // data member
+    /**
+     * Pointer to private implementation.
+     * Own
+     */
+    PosSettingsEnginePrivate* d_ptr; 
+    };
+
+#endif /* POSITIONINGSETTINGS_ENGINE_H */