// Copyright (c) 2005-2009 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:

 // Server-side base-classes for graphic drawer plugins

 // 

 //

 #ifndef __WSPLUGIN_H__

 #define __WSPLUGIN_H__

 #include <e32base.h>

 #include <e32std.h>

 #include <graphics/wsgraphicdrawerinterface.h>

 /**

 Window Server interface to the Window Server plugin API.

 @publishedPartner

 @prototype

 */

 class CWsPlugin : public CBase, public MWsObjectProvider

 	{

 private:

 	class CPimpl;

 	friend class CPimpl;

 public:

 	/**

 	This function should be overriden by all derived classes.  The first

 	call the implementation of this function should make is to BaseConstructL().

 	@param aEnv 	the environment this drawer exists in

 	@param aData 	arbitrary data for constructing this instance, sent from

 					the client.

 	*/

 	virtual void ConstructL(MWsGraphicDrawerEnvironment& aEnv,const TDesC8& aData) = 0;

 	IMPORT_C ~CWsPlugin();

 	IMPORT_C virtual const TDesC & PluginName() const;

 	static TInt DtorIDKeyOffset() { return _FOFF(CWsPlugin,iDtor_ID_Key); }

 protected:

 	IMPORT_C CWsPlugin();

 	IMPORT_C void BaseConstructL(MWsGraphicDrawerEnvironment& aEnv);

 	IMPORT_C MWsGraphicDrawerEnvironment& Env();

 	IMPORT_C const MWsGraphicDrawerEnvironment& Env() const;

 private:

 	CWsPlugin(const CWsPlugin &); // no implementation

 	CWsPlugin & operator=(const CWsPlugin &); // no implementation

 private:

 	TUid iDtor_ID_Key;

 	CPimpl* iPimpl;

 	};

 #endif //#ifndef __WSPLUGIN_H__