SoPathSensor.h

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**=======================================================================*/
/*=======================================================================
** Author      : Paul Strauss (MMM yyyy)
**=======================================================================*/
/*=======================================================================
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**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifndef  _SO_PATH_SENSOR_
#define  _SO_PATH_SENSOR_
 
#include <Inventor/SoPath.h>
#include <Inventor/sensors/SoDataSensor.h>
 
class  SoPathSensor : public SoDataSensor {
 
 public:
  SoPathSensor();
  SoPathSensor(SoSensorCB *func, void *data);
 
  virtual ~SoPathSensor();
 
  void                attach(SoPath *path);
 
  void                detach();
 
  SoPath *            getAttachedPath() const         { return path; }
 
 private:
  virtual void notify(SoNotList *list);
 
 private:
  SoFullPath *        path;           // Path sensor is attached to
  SoNode *            head;           // Head of that path
 
  //Sensors are attached to these nodes and must be removed
  std::vector<SoNode*> m_forwardTraversedHeads;
  
  // Called by the attached path when it (the path) is about to be deleted
  virtual void        dyingReference();
 
  // unlocked calls used internally for correct Multithread management
  void detach(SoNode* head, SoPath* path, const std::vector<SoNode*>& forwardTraversedHeads);
};
 
#endif  /* _SO_PATH_SENSOR_ */