Subject_Observer.cpp

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/*
Copyright (C) 2002-2003 Jean-Francois Mercure Burroughs

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


Report problems and direct all questions to:

email: Jean-Francois Mercure Burroughs or richard.gourdeau@polymtl.ca
*/


static const char rcsid[] = "$Id: Subject_Observer.cpp,v 1.2 2004/09/06 21:04:53 gourdeau Exp $";

#include <list>

#include "Subject_Observer.h"

Subject::Subject()
{
}

Subject::~Subject()
{
}

void Subject::Attach(Observer* o)
{
  m_observers.push_back(o);
}

void Subject::Detach(Observer* o)
{
    m_observers.remove(o);

}

void Subject::Notify(Observer* o)
{
    list<Observer*>::iterator iter;
    for(iter=m_observers.begin();iter!=m_observers.end();iter++)
//    for(iter=m_observers.begin();iter!=m_observers.end();++iter)
    {
        if(o!=(*iter))  
            (*iter)->Update(this);      
    }
}

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

Observer::Observer()
{
}

Observer::~Observer()
{
}

void Observer::Update(Subject *theChangedSubject)
{
}

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