uigraphics/AknIcon/srvinc/AknIconFileNameCache.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 09:14:12 +0200
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/*
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* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:   
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*
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*/
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#ifndef AKN_ICON_FILE_NAME_CACHE_H
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#define AKN_ICON_FILE_NAME_CACHE_H
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// INCLUDES
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#include <e32base.h>
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// FORWARD DECLARATIONS
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class CAknIconFileNameItem;
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// CONSTANTS
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// CLASS DEFINITIONS
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NONSHARABLE_CLASS(CAknIconFileNameCache) : public CBase
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    {
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    public: // Constructor and destructor
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        static CAknIconFileNameCache* NewL();
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        ~CAknIconFileNameCache();
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    public: // New functions
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        /*
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        * Caches the icon file name if it is not already in the cache and returns
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        * a pointer to the cached file name object.
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        *        
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        * @param aFileName file name to be cached
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        * @return reference to an HBufC object containing a copy of the icon file.
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        *         Note: The returned object is owned by the file name cache object and
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        *         it is never NULL.
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        */        
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        HBufC* CacheIconFileNameL( const TDesC& aFileName );   
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    private: // Private constructors
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        CAknIconFileNameCache();
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    private: // New functions    
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        /*
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        * Gets cached icon file name if found.
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        *
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        * @param aFileName file name to be found
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        * @return HBufC object containing the icon file name if the file name
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        *         is found otherwise NULL
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        */        
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        HBufC* GetIconFileName( const TDesC& aFileName ) const;   
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        /*
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        * Stores icon file name in icon file name cache.
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        * @param aFileName file name to be stored.
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        * @return HBufC object of the stored the icon file name.
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        */           
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        HBufC* StoreIconFileNameL( const TDesC& aFileName );
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    private: // Data
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        // Cached information of icon file names
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        RPointerArray<CAknIconFileNameItem> iFileNameItems;        
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    };
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#endif // AKN_ICON_FILE_NAME_CACHE_H
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// End of File