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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkImplicitPlaneWidget2.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkImplicitPlaneWidget2_h
#define vtkImplicitPlaneWidget2_h

#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkAbstractWidget.h"

class vtkImplicitPlaneRepresentation;
class vtkInteractionCallback;

class VTKINTERACTIONWIDGETS_EXPORT vtkImplicitPlaneWidget2 : public vtkAbstractWidget
{
  friend class vtkInteractionCallback;

public:
  static vtkImplicitPlaneWidget2 *New();


  vtkTypeMacro(vtkImplicitPlaneWidget2,vtkAbstractWidget);
  void PrintSelf(ostream& os, vtkIndent indent);

  void SetRepresentation( vtkImplicitPlaneRepresentation *rep );

  // Descritpion:
  // Disable/Enable the widget if needed.
  // Unobserved the camera if the widget is disabled.
  void SetEnabled(int enabling);

  void SetLockNormalToCamera(int lock);


  vtkImplicitPlaneRepresentation *GetImplicitPlaneRepresentation()
    {return reinterpret_cast<vtkImplicitPlaneRepresentation*>(this->WidgetRep);}

  void CreateDefaultRepresentation();

protected:
  vtkImplicitPlaneWidget2();
  ~vtkImplicitPlaneWidget2();

//BTX - manage the state of the widget
  int WidgetState;
  enum _WidgetState {Start=0,Active};
//ETX

  // These methods handle events
  static void SelectAction(vtkAbstractWidget*);
  static void TranslateAction(vtkAbstractWidget*);
  static void ScaleAction(vtkAbstractWidget*);
  static void EndSelectAction(vtkAbstractWidget*);
  static void MoveAction(vtkAbstractWidget*);
  static void MovePlaneAction(vtkAbstractWidget*);

  int UpdateCursorShape( int interactionState );


  vtkInteractionCallback *InteractionCallback;
  void InvokeInteractionCallback();

private:
  vtkImplicitPlaneWidget2(const vtkImplicitPlaneWidget2&);  //Not implemented
  void operator=(const vtkImplicitPlaneWidget2&);  //Not implemented
};

#endif