keyobservers.h

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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_KEYOBSERVERS_H)
#define INCLUDED_KEYOBSERVERS_H

#include "entitylib.h"
#include <map>

class KeyObserverMap: public Entity::Observer
{
        typedef std::multimap<const std::string, KeyObserver, RawStringLess> KeyObservers;
        KeyObservers m_keyObservers;
    public:
        void insert (const std::string& key, const KeyObserver& observer)
        {
            m_keyObservers.insert(KeyObservers::value_type(key, observer));
        }
        void insert (const std::string& key, EntityKeyValue& value)
        {
            for (KeyObservers::const_iterator i = m_keyObservers.find(key); i != m_keyObservers.end() && string_equal(
                    (*i).first, key); ++i) {
                value.attach((*i).second);
            }
        }
        void erase (const std::string& key, EntityKeyValue& value)
        {
            for (KeyObservers::const_iterator i = m_keyObservers.find(key); i != m_keyObservers.end() && string_equal(
                    (*i).first, key); ++i) {
                value.detach((*i).second);
            }
        }
};

#endif