//
//  Vrml 97 library
//  Copyright (C) 1998 Chris Morley
//
//  %W% %G%
//  VrmlEvent.h

#ifndef  _VRMLEVENT_
#define  _VRMLEVENT_

#include "VrmlField.h"


class VrmlEvent {

public:

  VrmlEvent(double timeStamp, const char *eventName, const VrmlField *value) :
    d_timeStamp(timeStamp),
    d_eventName(new char[strlen(eventName)+1]),
    d_value(value->clone()),
    d_refCount(1)
  { strcpy(d_eventName, eventName); }

  ~VrmlEvent() { delete [] d_eventName; delete d_value; }

  // VrmlEvents are reference counted.
  // The reference counting is manual (that is, each user of a
  // VrmlEvent, such as the VrmlNode class, calls reference()
  // and dereference() explicitly). Should make it internal...

  // Add/remove references to a VrmlEvent. This is silly, as it
  // requires the users of VrmlEvent to do the reference/derefs...
  VrmlEvent *reference() { ++d_refCount; return this; }
  void dereference() { if (--d_refCount == 0) delete this; }

  double timeStamp() { return d_timeStamp; }

protected:

  double d_timeStamp;
  char *d_eventName;
  VrmlField *d_value;
  int d_refCount;

};

#endif // _VRMLEVENT_