/*

* Copyright (c) 2009-2010 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:

*

*/

#ifndef CXECAMERADEVICECONTROLSYMBIAN_H

#define CXECAMERADEVICECONTROLSYMBIAN_H

//  Include Files

#include <QTimer>

#include "cxecameradevicecontrol.h"

#include "cxecameradevice.h"

#include "cxestatemachine.h"

#include "cxeerror.h"

class CxeCameraDeviceControlSymbian : public CxeCameraDeviceControl,

                                      public CxeStateMachine,

                                      public MCameraObserver2

{

    Q_OBJECT

public:

    CxeCameraDeviceControlSymbian();

    virtual ~CxeCameraDeviceControlSymbian();

public: // from CxeCameraDeviceControl

    /**

    * Calls newCamera and emits initModeComplete() on error.

    * This is in a separate method and not in the constructor so that

    * newCamera() can be properly overridden in derived classes.

    */

    void init();

    Cxe::CameraMode mode() const;

    void setMode(Cxe::CameraMode mode);

    void reserve();

    void release();

    Cxe::CameraIndex cameraIndex() const;

    CxeError::Id switchCamera(Cxe::CameraIndex index);

    State state() const;

    CxeCameraDevice *cameraDevice();

protected: // from CxeStateMachine

    void handleStateChanged(int newStateId, CxeError::Id error);

protected:

    void initializeStates();

    void powerOn();

    void prepare(int mode);

    void releaseCurrentCamera();

    void doHandleEvent(const TECAMEvent &aEvent);

    void handleReserveComplete(int error);

    void handlePowerOnComplete(int error);

    void handleNoLongerReserved(int error);

protected: // from MCameraObserver2

    void HandleEvent(const TECAMEvent &aEvent);

    void ViewFinderReady(MCameraBuffer &aCameraBuffer, TInt aError);

    void ImageBufferReady(MCameraBuffer &aCameraBuffer, TInt aError);

    void VideoBufferReady(MCameraBuffer &aCameraBuffer, TInt aError);

signals:

    void cameraEvent(int eventUid, int error); // ECam events

    void imageBufferReady(MCameraBuffer* buffer, int error);

    void deviceReady(); // device is ready to prepared in either still or video mode

    void vfFrameReady(MCameraBuffer* buffer, int error);

private slots:

    void doReserve();

protected: // Protected data so that unit test cases can replace

           // mCameraDevice with a fake implementation.

    CxeCameraDevice *mCameraDevice; // own

protected: // data

    Cxe::CameraIndex mCameraIndex;

    Cxe::CameraMode  mCameraMode;

    QTimer mReserveTimer;

};

#endif  // CXECAMERADEVICECONTROLSYMBIAN_H