/***************************************************************
 * Name:      TFunctor
 * Purpose:   Call_Back Functions
 * Author:    Diego CACERES (diego.caceres[AT]creatis.insa-lyon.fr)
 * Modified:  2011-05-09
 * Copyright: Diego CACERES (http://www.creatis.insa-lyon.fr/~caceres/)
 * License:
 **************************************************************/

#ifndef TFUNCTOR_H_
#define TFUNCTOR_H_

#include <string>

namespace creaButtonContainer
{
	namespace model
	{
		typedef std::string ButtonIDType;
		// abstract base class
		class TFunctor
		{
			public:
				// two possible functions to call member function. virtual cause derived
				// classes will use a pointer to an object and a pointer to a member function
				// to make the function call
				virtual void
				operator()( const ButtonIDType &buttonName )=0; // call using operator
				virtual void
				Call( const ButtonIDType &buttonName )=0;
				// call using function
		};

		// derived template class
		template< typename TClass >
			class TConcreteFunctor : public TFunctor
			{
				public:
					// constructor - takes pointer to an object and pointer to a member and stores
					// them in two private variables
					TConcreteFunctor( TClass* _pt2Object, void
					(TClass::*_fpt)( const ButtonIDType &buttonName ) );
					// override operator "()" // execute member function
					virtual void
					operator()( const ButtonIDType &buttonName );
					// override function "Call" // execute member function
					virtual void
					Call( const ButtonIDType &buttonName );
				private:
					void
					(TClass::*fpt)( const ButtonIDType &buttonName );
					// pointer to member function
					TClass* pt2Object;
					// pointer to object
			};

	}//ecapseman
}//ecapseman

#include "functor.txx"

#endif /* TFUNCTOR_H_ */