#ifndef __cpExtensions__Interaction__ImageSliceStyle__h__
#define __cpExtensions__Interaction__ImageSliceStyle__h__

#include <cpExtensions/Config.h>
#include <vtkInteractorStyleImage.h>
#include <vtkSmartPointer.h>

// -------------------------------------------------------------------------
class vtkPropPicker;
class vtkTextActor;

// -------------------------------------------------------------------------
namespace cpExtensions
{
  namespace Visualization
  {
    class CursorActors;
    class LUTImageActor;
    class WindowLevelImageActor;
  }
  namespace Interaction
  {
    /**
     */
    class cpExtensions_EXPORT ImageSliceStyle
      : public vtkInteractorStyleImage
    {
    public:
      typedef ImageSliceStyle Self;
      typedef cpExtensions::Visualization::CursorActors          TCursor;
      typedef cpExtensions::Visualization::LUTImageActor         TLUTActor;
      typedef cpExtensions::Visualization::WindowLevelImageActor TWLActor;

    public:
      vtkTypeMacro( ImageSliceStyle, vtkInteractorStyleImage );
      typedef vtkInteractorStyleImage::Superclass Overclass;

    public:
      static Self* New( );

      int GetSliceNumber( ) const;
      int GetOrientation( ) const;

      virtual void OnMouseMove( ) cpExtensions_OVERRIDE;
      virtual void OnMouseWheelForward( ) cpExtensions_OVERRIDE;
      virtual void OnMouseWheelBackward( ) cpExtensions_OVERRIDE;
      virtual void OnChar( ) cpExtensions_OVERRIDE;


      /* TODO
         cpExtensions::Visualization::ImageViewerActors* GetActors( );
         const cpExtensions::Visualization::ImageViewerActors* GetActors( ) const;
         void SetActors( cpExtensions::Visualization::ImageViewerActors* actors );

         // Events
         virtual void OnMouseMove( ) cpExtensions_OVERRIDE;
         virtual void OnChar( ) cpExtensions_OVERRIDE;
      */

    protected:
      ImageSliceStyle( );
      virtual ~ImageSliceStyle( );

      bool _PickPointOnImageActor( int idx[ 2 ], double pnt[ 3 ] );
      void _CorrectPosition( double pos[ 3 ], int ijk[ 3 ] );
      void _ShowText( double pos[ 3 ] );

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

    protected:
      vtkSmartPointer< vtkPropPicker > m_PropPicker;
      vtkSmartPointer< TLUTActor >     m_LUTActor;
      vtkSmartPointer< TWLActor >      m_WLActor;
      vtkSmartPointer< TCursor >       m_Cursor;
      vtkSmartPointer< vtkTextActor >  m_Text;
      char m_TextBuffer[ 1024 ];
    };

  } // ecapseman

} // ecapseman

#endif // __cpExtensions__Interaction__ImageSliceStyle__h__

// eof - $RCSfile$