/*

* Copyright (c) 2008-2008 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:  Observer interface for the image converter

*

*/

#ifndef M_MIRIMAGECONVERTEROBSERVER_H

#define M_MIRIMAGECONVERTEROBSERVER_H

#include <e32def.h>

/**

 * Observer interface for the image converter.

 */

class MIRImageConverterObserver

    {

public:

    /**

     * Supported image conversion events.

     */

    enum TIRImageConversionEvent

        {

        /**

         * Frame has been converted successfully; this means that the converter will continue

         * processing the data and sending out call backs as more frames are completed.

         */

        EIRFrameConversionCompleted,

        /**

         * Image has been completely converter; no further call backs will occur.

         */

        EIRImageConversionCompleted

        };

public:

    /**

     * Call back method that is called when an image converion event occurs.

     * 

     * @param   aEvent          The event that occurred.

     * @param   aId             Identifier for the conversion.

     * @param   aError          One of the standard system error codes.

     */

    virtual void HandleImageConversionEventL( MIRImageConverterObserver::

    										TIRImageConversionEvent aEvent,

    										TInt aId, TInt aError ) = 0;

    };

#endif // M_MIRIMAGECONVERTEROBSERVER_H