// @(#)root/reflex:$Id: Callback.h 22729 2008-03-19 10:20:10Z pcanal $
// Author: Stefan Roiser 2004

// Copyright CERN, CH-1211 Geneva 23, 2004-2006, All rights reserved.
//
// Permission to use, copy, modify, and distribute this software for any
// purpose is hereby granted without fee, provided that this copyright and
// permissions notice appear in all copies and derivatives.
//
// This software is provided "as is" without express or implied warranty.

#ifndef Reflex_Callback
#define Reflex_Callback

// Include files
#include "Reflex/Kernel.h"


namespace Reflex {

   // forward declarations
   class Type;
   class Member;

   /** 
   * @class Callback Callback.h Reflex/Callback.h
   * @author Pere Mato
   * @date 12/11/2004
   * @ingroup Ref
   */
   class RFLX_API ICallback {

   public:

      /** constructor */
      ICallback() {}

      /** destructor */
      virtual ~ICallback() {}

      /**
      * operator call (virtual)
      */
      virtual void operator () ( const Type & ) = 0;
      virtual void operator () ( const Member & ) = 0;

   }; // class ICallback


   RFLX_API void InstallClassCallback( ICallback * cb );
   RFLX_API void UninstallClassCallback( ICallback * cb );
   RFLX_API void FireClassCallback( const Type & );
   RFLX_API void FireFunctionCallback( const Member & );

} // namespace Reflex

#endif // Reflex_Callback