* 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: 

 *

 */

/**

 * Class Description

 * Medialist wrapper private class to acess the media property and thumbnail data

 * To use first call GlxMLWrapperPrivate::Instance then set the mode by calling GlxMLWrapperPrivate::SetContextMode()

 */

class GlxMLWrapperPrivate: public QObject, public MGlxTitleFetcherObserver

    /**

    static GlxMLWrapperPrivate* Instance( GlxMLWrapper* aMLWrapper, int aCollectionId,

        int aHierarchyId, TGlxFilterItemType aFilterType, QString uri,

        GlxFetcherFilterType fetcherFilterType );

    ~GlxMLWrapperPrivate();

    void SetContextMode( GlxContextMode aContextMode );

    /**

     * For removing the contect used

     */

    void RemoveContextMode( GlxContextMode aContextMode );

    /**

    int GetItemCount();

    /**

     * for retrieving the focus Index

     */

    int GetFocusIndex() const;

    /**

     * for setting the focus Index

     */

    void SetFocusIndex( int aItemIndex );

    /**

     * for setting the focus Index

     */

    void SetSelectedIndex( int aItemIndex );

    /**

     * for retrieving the visible window Index

     */

    int GetVisibleWindowIndex();

    /**

     * for setting the visible window Index

     */

    void SetVisibleWindowIndex( int aItemIndex );

public:

    // From MGlxTitleFetcherObserver

    IMPORT_C void HandleTitleAvailableL( const TDesC& aTitle );

    void HandleAttributesAvailableL( TInt aItemIndex, const RArray<TMPXAttribute>& aAttributes,

        MGlxMediaList* aList );

    void HandleFocusChangedL( NGlxListDefs::TFocusChangeType aType, TInt aNewIndex, TInt aOldIndex,

        MGlxMediaList* aList );

    void HandleItemSelectedL( TInt aIndex, TBool aSelected, MGlxMediaList* aList );

    //todo remove comment  void HandleCommandCompleteL( CMPXCommand* aCommandResult, TInt aError,MGlxMediaList* aList );

    void HandlePopulatedL( MGlxMediaList* aList );

    /**

     * RetrieveItemIcon() -  To retreive the full screen and grid thumbnail

     */

    HbIcon* RetrieveItemIcon( int index, GlxTBContextType aTBContextType );    

    QImage RetrieveItemImage( int index, GlxTBContextType aTBContextType );

    QString RetrieveListTitle( int index );

    QString RetrieveListDesc( int index );

    QString RetrieveListSubTitle( int index );

    QString RetrieveItemUri( int index );

    QSize RetrieveItemDimension( int index );

    int RetrieveItemSize( int index );

    QDate RetrieveItemDate( int index );

    QTime RetrieveItemTime( int index );

    int RetrieveItemFrameCount( int aItemIndex );

    CFbsBitmap* RetrieveBitmap( int aItemIndex );

    int RetrieveListItemCount( int aItemIndex );

    bool isSystemItem( int aItemIndex );

    /*

     *Sets the context for fetcing comments

     */

    void SetDescontextL();

    QString RetrieveViewTitle();

    bool IsPopulated();

    bool IsDrmProtected( int index );

    bool IsDrmValid( int index );

    void setDrmValid( int index, bool valid );

    bool IsCorruptedImage( int aItemIndex );

    GlxMLWrapperPrivate( GlxMLWrapper* aMLWrapper );

    void ConstructL( int aCollectionId, 

                          int aHierarchyId, 

                          TGlxFilterItemType aFilterType,

                          QString uri = NULL, 

                          GlxFetcherFilterType fetcherFilterType = EGlxFetcherFilterNone );

    /**

    void CreateMediaListL( int aCollectionId, 

                              int aHierarchyId, 

                              TGlxFilterItemType aFilterType,

                              GlxFetcherFilterType fetcherFilterType = EGlxFetcherFilterNone );

    void CreateMediaListAlbumItemL( int aCollectionId, 

                                      int aHierarchyId,

                                      TGlxFilterItemType aFilterType, GlxFetcherFilterType fetcherFilterType );

    void CreateMediaListFavoritesItemL( int aCollectionId, int aHierarchyId, TGlxFilterItemType aFilterType, QString uri );

    void SetThumbnailContextL( GlxContextMode aContextMode );

    void SetListContextL( GlxContextMode aContextMode );

    void SetFavouriteContextL();

    void CreateGridContextL();

    void CreateLsFsContextL();

    void CreatePtFsContextL();

    void RemoveGridContext();

    void RemoveLsFsContext();

    void RemovePtFsContext();

    void RemoveListContext();

    void RemoveFavouriteContext();

    void RemoveDescContext();

    //for the attribute filtering

    TInt CheckTBAttributesPresenceandSanity( TInt aItemIndex, const RArray<TMPXAttribute>& aAttributes, TMPXAttribute aThumbnailAttribute );

    void CheckGridTBAttribute( TInt aItemIndex, const RArray<TMPXAttribute>& aAttributes );

    void CheckPtFsTBAttribute( TInt aItemIndex, const RArray<TMPXAttribute>& aAttributes );

    void CheckLsFsTBAttribute( TInt aItemIndex, const RArray<TMPXAttribute>& aAttributes );

    void CheckListAttributes( TInt aItemIndex, const RArray<TMPXAttribute>& aAttributes );

    /*

     * to check the attributes returned for details view is present

     */

    void CheckDetailsAttributes( TInt aItemIndex, const RArray<TMPXAttribute>& aAttributes );

    /**

     * convertFBSBitmapToHbIcon() - convert the CFbsbitmap to HbIcon

     * @param - bitmap of media

     * @return - Hbicon of the modia.

     */

    HbIcon *convertFBSBitmapToHbIcon( CFbsBitmap* aBitmap );

    /*

     * convertFBSBitmapToHbIcon() - convert the CFbsbitmap to HbIcon and scale down upto itemWidth and itemHeight

     * @param - bitmap of media

     * @param - expected HbIcon width

     * @param - expected HbIcon height

     * @param - aspect ratio parameter in the case of scaling the thumbnail

     * @return - Hbicon of the modia.

     */

    HbIcon * convertFBSBitmapToHbIcon( CFbsBitmap* aBitmap, TInt itemWidth, TInt itemHeight, Qt::AspectRatioMode aspectRatio = Qt::KeepAspectRatio );

    //observer for ML

    CGlxMLGenericObserver* iMLGenericObserver;

    GlxContextMode iContextMode;

    //Parent QT based Wrapper

    GlxMLWrapper* iMLWrapper;

    //contexts

    // Thumbnail context

    CGlxThumbnailContext* iGridThumbnailContext;

    // FS related thumbnail contexts

    CGlxDefaultThumbnailContext* iPtFsThumbnailContext;

    CGlxDefaultThumbnailContext* iLsFsThumbnailContext;

    CGlxDefaultThumbnailContext* iFocusFsThumbnailContext;

    CGlxDefaultThumbnailContext* iFocusGridThumbnailContext;

    //List related contexts

    // Fetch context for retrieving title attribute

    CGlxDefaultAttributeContext *iFavouriteContext;

    //To fetch the details

    // Iterators for Grid and FS

    //Variables for checking the active contexts

    //todo merge all these variables into 1 and have bitwise operation on them

    TBool iGridContextActivated;

    TBool iLsFsContextActivated;

    TBool iPtFsContextActivated;

    TBool iLsListContextActivated; //currently not used as we have not implemented the logic for 3 thumbnails

    TBool iPtListContextActivated;

    TBool iDetailsContextActivated; //this is to fetch the comments attributes

    TBool iSelectionListContextActivated;

    CGlxTitleFetcher* iTitleFetcher;

    QImage iCorruptImage;

    QString iViewTitle;

    CGlxDRMUtility * iDrmUtility;