#ifndef __cpExtensions__Interaction__ImageSlicePointPlacer__h__
#define __cpExtensions__Interaction__ImageSlicePointPlacer__h__

#include <cpExtensions/Config.h>
#include <vtkPointPlacer.h>

class vtkBoundedPlanePointPlacer;
class vtkImageSlice;
class vtkRenderer;

namespace cpExtensions
{
  namespace Interaction
  {
    /**
     */
    class cpExtensions_EXPORT ImageSlicePointPlacer
      : public vtkPointPlacer
    {
    public:
      typedef ImageSlicePointPlacer Self;
      vtkTypeMacro( ImageSlicePointPlacer, vtkPointPlacer );

      vtkGetObjectMacro( ImageSlice, vtkImageSlice );
      vtkSetVector6Macro( Bounds, double );
      vtkGetVector6Macro( Bounds, double );

    public:
      static Self* New( );

      int ComputeWorldPosition(
        vtkRenderer* ren,
        double displayPos[ 2 ],
        double worldPos[ 3 ],
        double worldOrient[ 9 ]
        );
      int ComputeWorldPosition(
        vtkRenderer* ren,
        double displayPos[ 2 ],
        double refWorldPos[ 2 ],
        double worldPos[ 3 ],
        double worldOrient[ 9 ]
        );
      int ValidateWorldPosition( double worldPos[ 3 ] );
      int ValidateWorldPosition(
        double worldPos[ 3 ], double worldOrient[ 9 ]
        );
      int UpdateWorldPosition(
        vtkRenderer* ren, double worldPos[ 3 ], double worldOrient[ 9 ]
        );
      int UpdateInternalState( );

      void SetImageSlice( vtkImageSlice* slice );
      virtual void SetWorldTolerance( double tol );

    protected:
      ImageSlicePointPlacer( );
      virtual ~ImageSlicePointPlacer( );

    private:
      // Purposely not implemented
      ImageSlicePointPlacer( const Self& );
      Self& operator=( const Self& );

    protected:
      vtkImageSlice* ImageSlice;
      vtkBoundedPlanePointPlacer* Placer;
      double SavedBounds[ 6 ];
      double Bounds[ 6 ];
    };

  } // ecapseman

} // ecapseman

#endif // __cpExtensions__Interaction__ImageSlicePointPlacer__h__

// eof - $RCSfile$