/*

* Copyright (c) 2006-2006 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:  Updates the signal level control in status pane. 

*

*/

#ifndef C_AKNSTATUSPANESIGNALOBSERVER_H

#define C_AKNSTATUSPANESIGNALOBSERVER_H

#include <bacntf.h>

#include <coecntrl.h>

#include <AknControl.h>

#include "aknstatuspanedata.h"

#include "aknstatuspanedataobserver.h"

class CBase;

class CAknSignalPane;

class CAknStatusPaneDataSubscriber;

/**

* This internal Avkon class updates the signal level control in status pane.

*

* @since S60 3.2

* @lib Avkon

* 

*/

NONSHARABLE_CLASS(CAknSignalDataObserver) : public CBase, public MAknStatusPaneDataObserver

	{

public:

    /**

    * Standard constructor

    */

    CAknSignalDataObserver(CAknSignalPane* aSignalPane);

    /**

    * Destructor

    */

    ~CAknSignalDataObserver();

    /**

    * From MAknStatusPaneDataObserver

    */

	void HandleUpdateL(const TAknStatusPaneStateData& aData);

private:

	  // Not owned. Pointer to Signal pane. 

    CAknSignalPane* iSignalPane;

    // Not owned. Pointer to data subscriber.

    CAknStatusPaneDataSubscriber*  iDataSubscriber;

    };

#endif // AKNSTATUSPANESIGNALOBSERVER