vmap/libs/moduleobservers.h
2020-11-17 12:16:16 +01:00

59 lines
1.8 KiB
C++

/*
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