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

  Program:   Visualization Toolkit
  Module:    vtkCompassWidget.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.

=========================================================================*/
/*-------------------------------------------------------------------------
  Copyright 2008 Sandia Corporation.
  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
  the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/


#ifndef vtkCompassWidget_h
#define vtkCompassWidget_h

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

class vtkCompassRepresentation;


class VTKGEOVISCORE_EXPORT vtkCompassWidget : public vtkAbstractWidget
{
public:
  static vtkCompassWidget *New();


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


  void SetRepresentation(vtkCompassRepresentation *r)
  {this->Superclass::SetWidgetRepresentation
     (reinterpret_cast<vtkWidgetRepresentation*>(r));}

  void CreateDefaultRepresentation();


  double GetHeading();
  void SetHeading(double v);
  double GetTilt();
  void SetTilt(double t);
  double GetDistance();
  void SetDistance(double t);

protected:
  vtkCompassWidget();
  ~vtkCompassWidget() {}

  // These are the events that are handled
  static void SelectAction(vtkAbstractWidget*);
  static void EndSelectAction(vtkAbstractWidget*);
  static void MoveAction(vtkAbstractWidget*);
  static void TimerAction(vtkAbstractWidget*);

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

  int TimerId;
  int TimerDuration;
  double StartTime;

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

#endif