/*

* Copyright (c) 2005-2007 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:  Wrapper class for AknVolumeControl

*

*/

#ifndef _XNVOLUMECONTROL_H

#define _XNVOLUMECONTROL_H

//  INCLUDES

#include <e32base.h>

#include "xncomponent.h"

#include "mxncomponentinterface.h"

// FORWARD DECLARATIONS

class MXnVolumeControlObserver;

// CLASS DECLARATION

namespace XnVolumeControlInterface

{

_LIT8(KType, "volumecontrol");

class MXnVolumeControlInterface : public XnComponentInterface::MXnComponentInterface

   {

public:

    static inline const TDesC8& Type()

        {

        return KType;

        }

public: // New functions

	/**

	* Commented in xnvolumecontroladapter.h

	*/	

	virtual void SetValue( TInt aValue ) = 0;

	/**

	* Commented in xnvolumecontroladapter.h

	*/	

	virtual TInt Value() = 0;

	/**

	* Commented in xnvolumecontroladapter.h

	*/

	virtual void SetRange( TInt aMinimumValue, TInt aMaximumValue ) = 0;

	/**

	* Commented in xnvolumecontroladapter.h

	*/	

	virtual void GetRange( TInt& aMiminumValue, TInt& aMaximumValue ) = 0;

	/**

	* Commented in xnvolumecontroladapter.h

	*/

	virtual void SetObserver( MXnVolumeControlObserver* aObserver ) = 0;

private:

   };

 }   

/**

*  @ingroup group_xnvolumecontrolfactory

*  @lib xnvolumecontrol.lib

*  @since Series 60 3.2

*/

class CXnVolumeControl : public CXnComponent, public XnVolumeControlInterface::MXnVolumeControlInterface

   {

public:

	/**

	 * 2 phase construction.

	 */

	static CXnVolumeControl* NewL();

	/**

	 * Destructor.

	 */

	virtual ~CXnVolumeControl();

public: // New functions

	/**

	* Commented in xnvolumecontroladapter.h

	*/

	void SetValue( TInt aValue );

	/**

	* Commented in xnvolumecontroladapter.h

	*/

	TInt Value();

	/**

	* Commented in xnvolumecontroladapter.h

	*/

	void SetRange( TInt aMinimumValue, TInt aMaximumValue );

	/**

	* Commented in xnvolumecontroladapter.h

	*/

	void GetRange( TInt& aMiminumValue, TInt& aMaximumValue );

	/**

	* Commented in xnvolumecontroladapter.h

	*/

	void SetObserver( MXnVolumeControlObserver* aObserver );

public:

   	/**

      * Create a component interface according to the given type.

      * @param aType Type of the interface to create

      * @return Created interface or NULL if the provided type is not supported.

      */ 

    virtual XnComponentInterface::MXnComponentInterface* MakeInterfaceL(const TDesC8& aType);        

private:

	CXnVolumeControl();

	void ConstructL();

   };

#endif      // _XNVOLUMECONTROL_H

// End of File