557 /**

   558  * TGlxScrollingDirectionIterator

   559  * 

   560  * Ordered that returns the index of the visible window item based on ScrollDirection

   561  */	

   562 class TGlxScrollingDirectionIterator : public MGlxMediaListIterator

   563 	{

   564 	

   565 public:

   566     

   567 	 IMPORT_C ~TGlxScrollingDirectionIterator( );

   568 	 IMPORT_C TGlxScrollingDirectionIterator( );

   569 	

   570 	/**

   571 	 * Set the range offsets

   572 	 */

   573      IMPORT_C void SetRangeOffsets(TInt aRearOffset, TInt aFrontOffset);

   574     

   575     // From MGlxMediaListIterator

   576 	virtual void SetToFirst(const MGlxMediaList* aList);

   577 	virtual TInt operator++(TInt);

   578 	virtual TBool InRange(TInt aIndex) const;

   579 

   580 private:

   581     

   582     enum TMovingDirection

   583         {

   584         EForward,

   585         EBackward,

   586         EIdle

   587         };

   588     

   589 	/**	

   590 	 * The count or ordinal of the item that is currently "selected"

   591 	 * This translates to how many times ++ has been called

   592 	 */

   593 	TInt iCurrentItem;

   594 

   595 	/**

   596 	 * Number of items within range after visible index

   597 	 */

   598 	TInt iFrontOffset;

   599 

   600 	/**

   601 	 * Number of items within range before visible index

   602 	 */

   603 	TInt iRearOffset;

   604     

   605 	TInt iDefaultVisItems;

   606 	TMovingDirection iMovingDirection;

   607 	TInt iExVisindex;

   608 	

   609 protected:	

   610 	/**

   611 	 * List being traversed

   612 	 */

   613 	const MGlxMediaList* iList;

   614 	};

   615