Observable.h

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/*=========================================================================                                                                               
Program:   bbtk
Module:    $RCSfile: Observable.h,v $
Language:  C++
Date:      $Date: 2010/06/22 09:17:27 $
Version:   $Revision: 1.7 $
=========================================================================*/

/* ---------------------------------------------------------------------

* Copyright (c) CREATIS-LRMN (Centre de Recherche en Imagerie Medicale)
* Authors : Eduardo Davila, Laurent Guigues, Jean-Pierre Roux
*
*  This software is governed by the CeCILL-B license under French law and 
*  abiding by the rules of distribution of free software. You can  use, 
*  modify and/ or redistribute the software under the terms of the CeCILL-B 
*  license as circulated by CEA, CNRS and INRIA at the following URL 
*  http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html 
*  or in the file LICENSE.txt.
*
*  As a counterpart to the access to the source code and  rights to copy,
*  modify and redistribute granted by the license, users are provided only
*  with a limited warranty  and the software's author,  the holder of the
*  economic rights,  and the successive licensors  have only  limited
*  liability. 
*
*  The fact that you are presently reading this means that you have had
*  knowledge of the CeCILL-B license and that you accept its terms.
* ------------------------------------------------------------------------ */                                                                         



/****
* Design and Developpement of BBTK GEditor
* Ricardo A Corredor J <ra.corredor67@uniandes.edu.co>
* RaC - 2010
****/

#ifndef __Observable_h__
#define __Observable_h__

//Includes same project

#include "Observer.h"

//Includes same project
#include "GlobalConstants.h"

//Includes std
#include <iostream>
#include <vector>

namespace bbtk
{

        class Observable 
        {

        public: 

                //Constructors
                Observable();
                ~Observable();
                
                //Public methods
                void addObserver(Observer *observer);

                // It is possible to notify the observers with an specific command (See GlobalConstants.h), for example, 
                // to initialize the contour creation INIT_CREATION_CONTOUR
                void notifyObservers(int idCaller,int command=NO_COMMAND);

        private:

                //Private Attributes            
                std::vector<Observer*>  _observers;
                
                //Private Methods

        protected:
                
                //Protected Attributes
                
                //Protected methods
                
        };


}
// namespace bbtk
#endif