/*************************************************************************
 *
 *  OpenOffice.org - a multi-platform office productivity suite
 *
 *  $RCSfile: listener.hxx,v $
 *
 *  $Revision: 1.3 $
 *
 *  last change: $Author: rt $ $Date: 2005/09/08 09:53:22 $
 *
 *  The Contents of this file are made available subject to
 *  the terms of GNU Lesser General Public License Version 2.1.
 *
 *
 *    GNU Lesser General Public License Version 2.1
 *    =============================================
 *    Copyright 2005 by Sun Microsystems, Inc.
 *    901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License version 2.1, as published by the Free Software Foundation.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *    MA  02111-1307  USA
 *
 ************************************************************************/
#ifndef _SVT_LISTENER_HXX
#define _SVT_LISTENER_HXX

#ifndef INCLUDED_SVLDLLAPI_H
#include "svtools/svldllapi.h"
#endif

#ifndef _RTTI_HXX
#include <tools/rtti.hxx>
#endif

class SvtBroadcaster;
class SfxHint;
class SvtListenerBase;

//-------------------------------------------------------------------------

class SVL_DLLPUBLIC SvtListener
{
	friend class SvtListenerBase;
	SvtListenerBase *pBrdCastLst;

	const SvtListener&	operator=(const SvtListener &); // n.i., ist verboten

public:
	TYPEINFO();

						SvtListener();
						SvtListener( const SvtListener &rCopy );
	virtual 			~SvtListener();

	BOOL				StartListening( SvtBroadcaster& rBroadcaster );
	BOOL				EndListening( SvtBroadcaster& rBroadcaster );
	void				EndListeningAll();
	BOOL				IsListening( SvtBroadcaster& rBroadcaster ) const;

	BOOL 				HasBroadcaster() const { return 0 != pBrdCastLst; }

	virtual void		Notify( SvtBroadcaster& rBC, const SfxHint& rHint );
};

#endif

