/*

* 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 CXEVIEWFINDERCONTROL_H_

#define CXEVIEWFINDERCONTROL_H_

#include <QObject> 

#include <QWidget> // for WId

#include <QMetaType>

#include "cxeerror.h"

class CxeViewfinderControl : public QObject

{

    Q_OBJECT

public:

    enum State

        {

        Uninitialized = 0x01, // VF not yet initialized

        Ready         = 0x02, // VF initialized but not running

        Running       = 0x04, // VF running

        };

    virtual void setWindow(WId windowId) = 0;

    /*!

    * Start viewfinder 

    * @return CxeEngine specific error code

    */

    virtual CxeError::Id start() = 0;

    /*!

    * Stop viewfinder 

    */

    virtual void stop() = 0;

    /*!

    * Current viewfinder state

    */

    virtual State state() const = 0;

    /*!

    * Returns Device's Display resolution

    */

    virtual QSize deviceDisplayResolution() const = 0;

signals:

    void stateChanged(CxeViewfinderControl::State newState, CxeError::Id error);

protected:

    CxeViewfinderControl() {}

private:

    Q_DISABLE_COPY(CxeViewfinderControl)

};

Q_DECLARE_METATYPE(CxeViewfinderControl::State)

#endif /*CXEVIEWFINDERCONTROL_H_*/