GtkRadiant/plugins/entity/keyobservers.h

/*
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 EntityKeyValues::Observer
{
  typedef std::multimap<const char*, KeyObserver, RawStringLess> KeyObservers;
  KeyObservers m_keyObservers;
public:
  void insert(const char* key, const KeyObserver& observer)
  {
    m_keyObservers.insert(KeyObservers::value_type(key, observer));
  }
  void insert(const char* key, EntityKeyValues::Value& 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 char* key, EntityKeyValues::Value& 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