/*

* 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: ThumbnailManager stub for testing MpPlaybackData

*

*/

#ifndef THUMBNAILMANAGER_QT_H

#define THUMBNAILMANAGER_QT_H

#include <qobject>

#include <QPixmap.h>

/** default priority value */

const int tnmWrapperPriorityIdle = -100;

class ThumbnailManager : public QObject

    {

    Q_OBJECT

public:

    /** Thumbnail size. */

    enum ThumbnailSize

    {

        /**

         * Small thumbnail

         */

        ThumbnailSmall = 0,

        /**

         * Medium thumbnail

         */

        ThumbnailMedium,

        /**

         * Large thumbnail

         */

        ThumbnailLarge

    };

    /** Mode of thumbnail creation. */

    enum ThumbnailMode

        {

        /**

         * Default mode. This means that:

         * - Thumbnail must be as large as requested (unless the actual object is smaller).

         * - Smaller thumbnails may be up scaled to desired resolution.

         * - Aspect ratio is maintained and thumbnails are not cropped. The

         *   resulting thumbnail may smaller in either width or height if

         *   the aspect ratio of the object does not match the aspect ratio

         *   of the requested size.

         */

        Default = 0,

        /**

         * Allow thumbnails which are smaller than requested are. Thumbnail

         * bitmaps are never up scaled if this flag is set.

         */

        AllowAnySize = 1,

        /**

         * New thumbnail images are not created if this flag is set. Only

         * existing thumbnails may be returned. If a requested thumbnail does

         * not exist null pixmap will be returned.

         */

        DoNotCreate = 2,

        /**

         * Thumbnail images are cropped to match requested aspect ratio. If

         * this mode is set, the size of the resulting thumbnail always

         * matches the requested size.

         */

        CropToAspectRatio = 4

    };

    /**  Quality versus speed preference setting */

    enum QualityPreference

    {

        /**

         * Prefer thumbnails in the highest quality possible disregarding

         * any negative impact on performance.

         */

        OptimizeForQuality,

        /**

         * Get thumbnails as fast as possible, even if

         * it means lower quality.

         */

        OptimizeForPerformance

    };

    // Test utility functions

    static int getInitCounter();

    static void resetInitCounter();

    // Stub functions

    ThumbnailManager( QObject* parentPtr = NULL );

    virtual ~ThumbnailManager();

    bool setMode( ThumbnailMode mode );

    bool setQualityPreference( QualityPreference qualityPreference );

    bool setThumbnailSize( ThumbnailSize thumbnailSize );

    int getThumbnail( const QString& fileName, void * clientData = NULL,

            int priority = tnmWrapperPriorityIdle );

    bool cancelRequest( int id );

signals:

    void thumbnailReady( QPixmap , void * , int , int );

public:

    bool    mGetThumbFails;

    int     mThumbnailReqCounter;

    int     mCancelCounter;

};

#endif // THUMBNAILMANAGER_QT