/*

* Copyright (c) 2005 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:  Manipulates the panning of a Player in the stereo output mix.

*

*/

#ifndef CAMMSPANCONTROL_H

#define CAMMSPANCONTROL_H

//  INCLUDES

#include <e32base.h>

#include <midiclientutility.h>

#include "cammscontrol.h"

//EMC header

#include <BalanceControl.h>

#include <cmmaemcaudioplayer.h>

using multimedia :: MBalanceControl;

using multimedia :: KBalanceEffectControl;

// CONSTANTS

_LIT(KAMMSPanControl, "PanControl");

// CLASS DECLARATION

/**

*

*  Controls for the Panning effect.

*  This class delegates Pan effect method calls to CBalance.

*

*

*  @since 3.0

*/

NONSHARABLE_CLASS(CAMMSPanControl): public CAMMSControl

{

public:  // Constructors and destructor

    /**

    * Two-phased constructor.

    * @param aPlayer Player that has this control.

    */

    static CAMMSPanControl* NewLC(CMMAPlayer* aPlayer);

    /**

    * Destructor.

    */

    ~CAMMSPanControl();

public: // New functions

    /**

    * Gets the current panning set.

    *

    * @return The current balance or panning setting.

    */

    TInt PanL();

    /**

    * Sets the panning using a linear point scale with values between -100

    * and 100. 0 represents panning for both channels, -100 full panning to

    * the left and 100 full panning to the right. If the given panning

    * value is less than -100 or greater than 100, the panning will be set

    * to -100 or 100, respectively.

    *

    * @param aPan The new panning to be set.

    *

    * @return The panning that was actually set.

    */

    TInt SetPanL(TInt aPan);

public: // Functions from base classes

    const TDesC& ClassName() const;

private:

    /**

    * C++ constructor.

    * @param aPlayer Player that has this control.

    */

    CAMMSPanControl(CMMAPlayer* aPlayer);

    /**

     * 2nd phase constructor.

     */

    void ConstructL();

private:  // Data

    /** Client class to access Audio Play Device functionality, owned */

    RMMFAudioPlayDeviceCustomCommands* iRMMFAudioPlayDeviceCustomCommands;

    /** CMidiClientUtility, not owned. */

    CMidiClientUtility* iMidiClientUtility;

private:

    CMMAPlayer *iMMAPlayer;

    /**

    * EMC Pan Control

    */

    CMultimediaFactory* iFactory;

    MStreamControl* iStreamControl;

    MBalanceControl *iMBalanceControl;

};

#endif // CAMMSPANCONTROL_H