#ifndef _vtkImageTracerWidgetCallback_h_
#define _vtkImageTracerWidgetCallback_h_

#include "vtkCommand.h"
#include "vtkPolyData.h"
#include "vtkObject.h"

class vtkViewImage2DWithTracer;

class vtkImageTracerWidgetCallback : public vtkCommand
{

 public:
  
  static vtkImageTracerWidgetCallback *New()
  { return new vtkImageTracerWidgetCallback; }

  
  virtual void Execute (vtkObject* caller, unsigned long, void*);
  
  void SetView ( vtkViewImage2DWithTracer* view);
  
  vtkViewImage2DWithTracer* GetView (void) const
  {
    return this->View;
  }

  vtkPolyData* GetPolyData (void) const
  {
    return this->PathPoly;
  }
  
  

 protected:
 
  vtkImageTracerWidgetCallback();
  ~vtkImageTracerWidgetCallback();
  
  void OnEndInteractionEvent(vtkObject* caller);
  void OnKeyPressEvent (vtkObject* caller, unsigned char);

 
 private:
  vtkImageTracerWidgetCallback (const vtkImageTracerWidgetCallback&);
  void operator=(const vtkImageTracerWidgetCallback&);
  
  
  vtkPolyData*               PathPoly;
  vtkViewImage2DWithTracer*  View;
  
  
};



#endif