/*

* Copyright (c) 2002 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:   

*

*/

#ifndef AKN_ICON_SRV_CACHE_H

#define AKN_ICON_SRV_CACHE_H

//  INCLUDES

#include <e32base.h>

#include <AknsSrvClient.h>

// CONSTANTS

// FORWARD DECLARATIONS

class CAknIconServer;

class CAknIconSrvIconItem;

class CAknIconSrvPrecacheItem;

class TResourceReader;

class CAknsBitmapItemDef;

// FUNCTION PROTOTYPES

GLREF_C TInt PrecacheThreadFunction( TAny* aParameters );

// CLASS DECLARATION

/**

* Icon cache configuration (static and dynamic).

*/

NONSHARABLE_CLASS(CAknIconSrvCache) : public CBase

    { 

    public:  // Constructors and destructor

        static CAknIconSrvCache* NewL( CAknIconServer& aServer );

        virtual ~CAknIconSrvCache();

    public:  // New methods

        // Dynamic bitmap caching

        TBool CacheUnusedIcon( CAknIconSrvIconItem& aItem );

        void RemoveIfCached( CAknIconSrvIconItem& aItem );

        void DynamicToPrecache( CAknIconSrvIconItem& aItem );

        // Other utility methods

        inline RThread PrecacheThread();

        inline RPointerArray<CAknIconSrvPrecacheItem>& PrecacheItems();

        void EnableCache( TBool aEnable );

        // For debug only

        void ResetDynamicCache();

    private: // New methods

        static TInt IconDataSize( CAknIconSrvIconItem& aItem );

        CAknIconSrvCache( CAknIconServer& aServer );

        void ConstructL();

        void UpdateDynamicCacheSize();        

    private:     // data

        TInt iConfiguredMaxDynamicCacheSize;

        TInt iMaxDynamicCacheSize;

        // Dynamic cache info

        TInt iDynamicCacheSize;

        RPointerArray<CAknIconSrvIconItem> iDynamicallyCached;

        // Precache info

        // size of all items in precache

        TInt iPrecacheSize;

        // items marked to be precached

        RPointerArray<CAknIconSrvIconItem> iPrecache;

        CAknIconServer& iServer;

#ifdef PRECACHE2

        RThread iPrecacheThread2;

#endif

    };

#endif // AKN_ICON_SRV_CACHE_H

// Enf of File