/*

* Copyright (c) 2006-2007 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:  Image thumbnail provider plugin.

 *

*/

#ifndef THUMBNAILIMAGEPROVIDER_H

#define THUMBNAILIMAGEPROVIDER_H

#include "thumbnailprovider.h"

class CThumbnailImageDecoder;

class CThumbnailImageDecoderv2;

/**

 *  Image thumbnail provider plugin.

 *

 *  @since S60 v5.0

 */

class CThumbnailImageProvider: public CThumbnailProvider

    {

public:

    /**

     * Two-phased constructor.

     *

     * @since S60 v5.0

     * @return New image thumbnail provider instance.

     */

    static CThumbnailImageProvider* NewL();

    /**

     * Destructor

     *

     * @since S60 v5.0

     */

    virtual ~CThumbnailImageProvider();

    /**

     * Function that will provide thumbnail from given parameters.

     *

     * @since S60 v5.0

     * @param aFs File server session

     * @param aFile Source image file.

     * @param aMimeType MIME-type of the image file.

     * @param aFlags Flags for thumbnail creation.

     * @param aDisplayMode Used display mode.

     */

    void GetThumbnailL( RFs& aFs, RFile64& aFile, const TDataType& aMimeType,

        const CThumbnailManager::TThumbnailFlags aFlags, const TDisplayMode

        aDisplayMode, const CThumbnailManager::TThumbnailQualityPreference aQualityPreference  );

    /**

     * Function that will provide thumbnail from given parameters.

     *

     * @since S60 v5.0

     * @param aFs File server session

     * @param aBuffer Source image buffer.

     * @param aMimeType MIME-type of the image file.

     * @param aFlags Flags for thumbnail creation.

     * @param aDisplayMode Used display mode.

     */    

    void GetThumbnailL( RFs& aFs, TDesC8* aBuffer, const

        TDataType& aMimeType, const CThumbnailManager::TThumbnailFlags aFlags,

        const TDisplayMode aDisplayMode, const CThumbnailManager::TThumbnailQualityPreference aQualityPreference  );

    /**

     * Function that will provide thumbnail from given parameters.

     *

     * @since S60 v5.0

     * @param aFs File server session

     * @param aBuffer Source image buffer.

     */ 

    void GetThumbnailL( RFs& aFs, TDesC8& aBuffer);

    /**

     * Cancel a previous thumbnail request, if any.

     *

     * @since S60 5.0

     */

    void CancelGetThumbnail();

private:

    /**

     * C++ default constructor

     *

     * @since S60 v5.0

     * @return New image thumbnail provider instance.

     */

    CThumbnailImageProvider();

private:

    /**

     * Thumbnail decoder.

     */

    CThumbnailImageDecoder* iImageDecoder;

    /**

     * Thumbnail decoderv2.

    */

    CThumbnailImageDecoderv2* iImageDecoderv2;

   /**

     * File server session.

     * Not own.

     */

    RFs iFs;

    /**

     * Mime-type of image

     */

    TDataType iMimeType;

};

#include "thumbnailprovider.inl"

#endif // THUMBNAILIMAGEPROVIDER_H