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: // graphicsresourcewrapper.cpp
sl@0: // 
sl@0: //
sl@0: 
sl@0: #ifndef __GRAPHICSRESOURCEWRAPPER_H__
sl@0: #define __GRAPHICSRESOURCEWRAPPER_H__
sl@0: 
sl@0: #include <e32base.h>
sl@0: #include <graphics/sgresource.h>
sl@0: 
sl@0: class CGraphicsResourceWrapper;
sl@0: 
sl@0: _LIT(KGraphicsResourceWrapperDll, "graphicsresourcewrapper.dll");
sl@0: 
sl@0: 
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: class CGraphicsResourceWrapperFactory : public CBase
sl@0: 	{
sl@0: public:
sl@0: 	inline ~CGraphicsResourceWrapperFactory();
sl@0: 	inline CGraphicsResourceWrapper* NewGraphicsResourceWrapper();
sl@0: 
sl@0: private:
sl@0: 	enum { EFactoryMethod = 1 };
sl@0: 	RLibrary iLibrary;
sl@0: 	TBool iLoaded;
sl@0: 	};
sl@0: 
sl@0: inline CGraphicsResourceWrapperFactory::~CGraphicsResourceWrapperFactory()
sl@0: 	{
sl@0: 	if (iLoaded)
sl@0: 		iLibrary.Close();
sl@0: 	}
sl@0: 
sl@0: inline CGraphicsResourceWrapper* CGraphicsResourceWrapperFactory::NewGraphicsResourceWrapper()
sl@0: 	{
sl@0: 	if (!iLoaded)
sl@0: 		{
sl@0: 		if (KErrNone == iLibrary.Load(KGraphicsResourceWrapperDll))
sl@0: 			iLoaded = ETrue;
sl@0: 		else
sl@0: 			return NULL;
sl@0: 		}
sl@0: 
sl@0: 	typedef CGraphicsResourceWrapper*(* TFactoryMethod)();
sl@0: 	TFactoryMethod f = reinterpret_cast<TFactoryMethod>(iLibrary.Lookup(EFactoryMethod));
sl@0: 	if (f)
sl@0: 		return f();
sl@0: 
sl@0: 	return NULL;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: A wrapper class around Graphics Resource so that Wserv doesn't need to link
sl@0: against graphics resource.
sl@0: 
sl@0: @internalComponent
sl@0: */
sl@0: class CGraphicsResourceWrapper : public CBase
sl@0: 	{
sl@0: public:
sl@0: 	virtual RSgDrawable* NewDrawableL() = 0;
sl@0: 	virtual TInt Open(RSgDrawable& aDrawable, const TSgDrawableId& aDrawableId) = 0;
sl@0: 	virtual void Close(RSgDrawable& aDrawable) = 0;
sl@0: 	virtual TBool IsNull(const RSgDrawable& aDrawable) = 0;
sl@0: 	virtual TSgDrawableId Id(const RSgDrawable& aDrawable) = 0;
sl@0: 	};
sl@0: 
sl@0: #endif //__GRAPHICSRESOURCEWRAPPER_H__