/*

* 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: 

*

*/

#ifndef MUSHENGCAMERAHANDLER_H

#define MUSHENGCAMERAHANDLER_H

// USER

#include "musunittesting.h"

#include "mussettings.h"

// SYSTEM

#include <lccameracontrol.h>

#include <lcbrightnesscontrol.h>

#include <lczoomcontrol.h>

#include <ecam.h>

// FORWARD DECLARATIONS

class CMceCameraSource;

class CMceSession;

// CLASS

class TMusEngCameraHandler :    

    public MLcCameraControl,

    public MLcBrightnessControl,

    public MLcZoomControl

    {

    MUS_UNITTEST( UT_CMusEngOutSession )

    MUS_UNITTEST( UT_CMusEngLiveSession )

    MUS_UNITTEST( UT_CMusEngTwoWaySession )

    MUS_UNITTEST( UT_CMusEngTwoWayRecvSession )

    MUS_UNITTEST( UT_TMusEngCameraHandler )       

    public: // From MLcCameraControl

        TInt LcCameraCountL();

        TInt CurrentLcCameraIndex();

        void ToggleLcCameraL();       

    public: // From MLcBrightnessControl

        TInt MinLcBrightnessL();

        TInt MaxLcBrightnessL();

        TInt LcBrightnessL();

        void SetLcBrightnessL( TInt aValue );

        void IncreaseLcBrightnessL();

        void DecreaseLcBrightnessL();

    public: // From MLcZoomControl

        TInt MinLcZoomL();

        TInt MaxLcZoomL();

        TInt LcZoomValueL();

        void SetLcZoomValueL( TInt aValue );

        void LcZoomInL();

        void LcZoomOutL();     

    public:

        /**

        * Resumes previously paused session. 

        * Continues using viewfinder and enables streaming video.

        *

        */

        void PlayL();

        /**

        * Pauses session.

        * Holds display and disables streaming video to network.

        *

        */

        void PauseL();

        /**

        * Tells whether session is paused or not

        */

        TBool IsPlayingL();

    public:

        TMusEngCameraHandler();

        void SetSession( CMceSession* aSession );

        void InitializeL( CMceCameraSource& aCamera );

        void InitializeZoomStepSize();

        void ReadCameraUsageKeyL();

        TInt ZoomStepSize( TInt64& aTime );

    private:

        enum TCurrentCamera

            {

            ECameraNotAvailable = KErrNotFound,

            EBackCamera = 0, 

            EFrontCamera = 1

            };         

    private: // New functions

        TInt CamerasAvailableL( TCurrentCamera& aCurrentCamera );

        void ChangeCameraL( TCurrentCamera aCurrentCamera );

        void ChangeActiveCameraL( TCurrentCamera aNewCamera );

    private: // Data

        CMceSession* iSession; // Not owned

        TCameraInfo iCameraInfo;

        TInt iDefaultBrightness;

        TInt64 iZoomInTime;

        TInt64 iZoomOutTime;        

        TInt iSmallZoomStep;

        TInt iBigZoomStep;

        TCurrentCamera iCurrentCamera;

        MusSettingsKeys::TUseCamera iCameraUsage;    

    };

#endif