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/*
Copyright (C) 2001-2006, William Joseph.
All Rights Reserved.
This file is part of GtkRadiant.
GtkRadiant 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.
GtkRadiant 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 GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#if !defined(INCLUDED_MODULEOBSERVERS_H)
#define INCLUDED_MODULEOBSERVERS_H
#include "debugging/debugging.h"
#include <set>
#include "moduleobserver.h"
class ModuleObservers
{
typedef std::set<ModuleObserver*> Observers;
Observers m_observers;
public:
~ModuleObservers()
{
ASSERT_MESSAGE(m_observers.empty(), "ModuleObservers::~ModuleObservers: observers still attached");
}
void attach(ModuleObserver& observer)
{
ASSERT_MESSAGE(m_observers.find(&observer) == m_observers.end(), "ModuleObservers::attach: cannot attach observer");
m_observers.insert(&observer);
}
void detach(ModuleObserver& observer)
{
ASSERT_MESSAGE(m_observers.find(&observer) != m_observers.end(), "ModuleObservers::detach: cannot detach observer");
m_observers.erase(&observer);
}
void realise()
{
for(Observers::iterator i = m_observers.begin(); i != m_observers.end(); ++i)
{
(*i)->realise();
}
}
void unrealise()
{
for(Observers::reverse_iterator i = m_observers.rbegin(); i != m_observers.rend(); ++i)
{
(*i)->unrealise();
}
}
};
#endif
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