sl@0: // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #ifndef __DRAWABLECACHE_H__
sl@0: #define __DRAWABLECACHE_H__
sl@0: 
sl@0: #include <e32cmn.h>
sl@0: #include <graphics/sgresource.h>
sl@0: 
sl@0: #include "W32STD.H"
sl@0: 
sl@0: /**
sl@0: @file
sl@0: @internalComponent
sl@0: Provides functionality which is used by RemoteGc.
sl@0: */
sl@0: 
sl@0: class RWsDrawableSource;
sl@0: class MWsDrawableSourceProvider;
sl@0: class CGraphicsResourceWrapperFactory;
sl@0: class CGraphicsResourceWrapper;
sl@0: 
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: NONSHARABLE_CLASS(CDrawableCacheBase): public CBase
sl@0: 	{
sl@0: public:
sl@0: 	virtual TInt UseL(const TSgDrawableId& aDrawableId, TInt aScreenNumber) = 0;
sl@0: 	const TAny* Resolve(const TSgDrawableId& aDrawableId, TInt aScreenNumber) const;
sl@0: protected:
sl@0: 	class TCacheEntry
sl@0: 		{
sl@0: 	public:
sl@0: 		TCacheEntry(const TSgDrawableId& aDrawableId, TInt aScreenNumber)
sl@0: 			: iDrawableId(aDrawableId), iScreenNumber(aScreenNumber), iCachedItem(NULL)
sl@0: 			{}
sl@0: 	public:
sl@0: 		TSgDrawableId iDrawableId;
sl@0: 		TInt iScreenNumber;
sl@0: 		TAny* iCachedItem;
sl@0: 		};
sl@0: protected:
sl@0: 	static TInt Compare(const TCacheEntry &aFirstEntry, const TCacheEntry &aSecondEntry);
sl@0: protected:
sl@0: 	RArray<TCacheEntry> iCachedItems;
sl@0: 	};
sl@0: 
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: NONSHARABLE_CLASS(CWindowDrawableCache): public CDrawableCacheBase
sl@0: 	{
sl@0: public:
sl@0: 	CWindowDrawableCache(RWsSession& aSession);
sl@0: 	~CWindowDrawableCache();
sl@0: 	TInt UseL(const TSgDrawableId& aDrawableId, TInt aScreenNumber);
sl@0: private:
sl@0: 	RWsSession& iWsSession;
sl@0: 	CGraphicsResourceWrapperFactory* iGrwFactory;
sl@0: 	CGraphicsResourceWrapper* iGraphicsResource;
sl@0: 	};
sl@0: 
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: NONSHARABLE_CLASS(CRenderStageDrawableCache): public CDrawableCacheBase
sl@0: 	{
sl@0: public:
sl@0: 	CRenderStageDrawableCache(MWsDrawableSourceProvider* aDrawResource);
sl@0: 	~CRenderStageDrawableCache();
sl@0: 	TInt UseL(const TSgDrawableId& aDrawableId, TInt aScreenNumber);
sl@0: private:
sl@0: 	MWsDrawableSourceProvider* iDrawResource;
sl@0: 	};
sl@0: 
sl@0: #endif //__DRAWABLECACHE_H__