// 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__