albaEventBroadcaster.h

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/*=========================================================================
 
 Program: ALBA (Agile Library for Biomedical Applications)
 Module: albaEventBroadcaster
 Authors: Marco Petrone, Gianluigi Crimi
 
 Copyright (c) BIC
 All rights reserved. See Copyright.txt or
 
 
 This software is distributed WITHOUT ANY WARRANTY; without even
 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
#ifndef __albaEventBroadcaster_h
#define __albaEventBroadcaster_h
//----------------------------------------------------------------------------
// includes :
//----------------------------------------------------------------------------
#include "albaEventSender.h"
#include <vector>
#include <list>
 
//------------------------------------------------------------------------------
// Forward declarations
//------------------------------------------------------------------------------
class albaObserver;
class albaObserversList;
class albaEventBase;
class albaObserverCallback;
 
//------------------------------------------------------------------------------
// albaEventBroadcaster
//------------------------------------------------------------------------------
class ALBA_EXPORT albaEventBroadcaster : public albaEventSender
{
public:
  albaEventBroadcaster(void *owner=NULL);
  virtual ~albaEventBroadcaster();
 
  albaEventBroadcaster(const albaEventBroadcaster& c) {}
 
  void AddObserver(albaObserver *obj);
 
  void AddObserver(albaObserver &obj);
 
  albaObserverCallback *AddObserverCallback(void (*f)(void *sender,  albaID eid, void *clientdata, void *calldata));
 
  bool RemoveObserver(albaObserver *obj);
 
  void RemoveAllObservers();
 
  bool IsObserver(albaObserver *obj);
 
  bool HasObservers();
 
  void GetObservers(std::vector<albaObserver *> &olist);
 
  void InvokeEvent(albaEventBase &e);
 
  void InvokeEvent(albaEventBase *e);
 
   void InvokeEvent(void *sender,albaID id = ID_NO_EVENT, void *data = NULL);
    
  void SetChannel(albaID ch);
 
  albaID GetChannel();
 
   virtual void SetListener(albaObserver *o);
 
protected:
   typedef std::list<albaObserver *> albaObserversList;
 
  albaObserversList  m_Observers;  
  albaID             m_Channel;     
private:
  
};
 
#endif /* __albaEventBroadcaster_h */