SoNodeSensor.h

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**=======================================================================*/
/*=======================================================================
** Author      : Nick Thompson (MMM yyyy)
** Modified by : Paul Strauss (MMM yyyy)
**=======================================================================*/
/*=======================================================================
 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.),            ***
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**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifndef  _SO_NODE_SENSOR_
#define  _SO_NODE_SENSOR_
 
#include <Inventor/sensors/SoDataSensor.h>

class  SoNodeSensor : public SoDataSensor {
 
 public:
  SoNodeSensor();
  SoNodeSensor(SoSensorCB *func, void *data);

  virtual ~SoNodeSensor();

  void attach(SoNode *node);

  void detach();

  SoNode *getAttachedNode() const { return node; }
 
 private:
  SoNode *node;               // Node sensor is attached to
 
  // Propagates modification notification through an instance. This
  // checks to see if the node that triggered notification matches
  // the node we are attached to.
  virtual void notify(SoNotList *list);
 
  // Called by the attached node when it (the node) is about to be deleted
  virtual void dyingReference();
 
  // unlocked calls used internally for correct Multithread management
  void detach(SoNode* node);
};
 
#endif  /* _SO_NODE_SENSOR_ */