/*

* Copyright (c) 2009 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 CXEENGINE_H

#define CXEENGINE_H

#include <QObject> 

#include "cxenamespace.h"

class CxeCameraDeviceControl;

class CxeViewfinderControl;

class CxeStillCaptureControl;

class CxeVideoCaptureControl;

class CxeAutoFocusControl;

class CxeZoomControl;

class CxeImageDataQueue;

class CxeFeatureManager;

class CxeSettings;

/**

 * CxeEngine provides the the entry point into CameraX engine. This is the

 * first class the client needs to initialize. CxeEngine then provides

 * references to other CameraX engine objects. 

 */

class CxeEngine : public QObject

{

    Q_OBJECT

public:

    /**

     * Create a new engine instance. This is the first call the client needs to

     * do when using CxeEngine.

     */

    IMPORT_C static CxeEngine* createEngine();

    virtual ~CxeEngine();

    /**

     * Access the camera device control.

     */

    virtual CxeCameraDeviceControl &cameraDeviceControl() = 0;

    /**

     * Access the viewfinder control.

     */

    virtual CxeViewfinderControl &viewfinderControl() = 0;

    /**

     * Access the still capture control.

     */

    virtual CxeStillCaptureControl &stillCaptureControl() = 0;

    /**

     * Access the video capture control.

     */

    virtual CxeVideoCaptureControl &videoCaptureControl() = 0;

    /**

     * Access the auto-focus control.

     */

    virtual CxeAutoFocusControl &autoFocusControl() = 0;

    /**

     * Access the zoom control.

     */

    virtual CxeZoomControl &zoomControl() = 0;

    /**

     * Access the settings model.

     */

    virtual CxeSettings &settings() = 0;

    virtual CxeFeatureManager &featureManager() = 0;

    /**

     * Get current camera mode.

     */

    virtual Cxe::CameraMode mode() const = 0;

    /**

     * Initialize the camera in either still or video mode. This method is also

     * used to switch between modes.

     */

    virtual void initMode( Cxe::CameraMode cameraMode ) = 0;

    //! returns if the engine is ready or not

    virtual bool isEngineReady() = 0;

protected:

    CxeEngine();

private:

    Q_DISABLE_COPY( CxeEngine )

};

#endif // CXEENGINE_H