/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */

/*

 * Copyright (c) 2007 INRIA

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation;

 *

 * 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

 *

 * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

 */

#ifndef MOBILITY_MODEL_NOTIFIER_H

#define MOBILITY_MODEL_NOTIFIER_H

#include "ns3/object.h"

#include "ns3/callback.h"

#include "ns3/callback-trace-source.h"

#include "mobility-model.h"

namespace ns3 {

/**

 * \brief notify listeners of position changes.

 */

class MobilityModelNotifier : public Object

{

public:

  /**

   * Create a new position notifier

   */

  MobilityModelNotifier ();

  /**

   * \param position the position which just changed.

   */

  void Notify (Ptr<const MobilityModel> position) const;

protected:

  virtual Ptr<TraceResolver> GetTraceResolver (void) const;

private:

  CallbackTraceSource<Ptr<const MobilityModel> > m_trace;

};

} // namespace ns3

#endif /* MOBILITY_MODEL_NOTIFIER_H */