vtkInteractorStyleTrackballActor.h

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

  Program:   Visualization Toolkit
  Module:    vtkInteractorStyleTrackballActor.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 vtkInteractorStyleTrackballActor_h
#define vtkInteractorStyleTrackballActor_h

#include "vtkInteractionStyleModule.h" // For export macro
#include "vtkInteractorStyle.h"

class vtkCellPicker;

class VTKINTERACTIONSTYLE_EXPORT vtkInteractorStyleTrackballActor : public vtkInteractorStyle
{
public:
  static vtkInteractorStyleTrackballActor *New();
  vtkTypeMacro(vtkInteractorStyleTrackballActor,vtkInteractorStyle);
  void PrintSelf(ostream& os, vtkIndent indent);


  virtual void OnMouseMove();
  virtual void OnLeftButtonDown();
  virtual void OnLeftButtonUp();
  virtual void OnMiddleButtonDown();
  virtual void OnMiddleButtonUp();
  virtual void OnRightButtonDown();
  virtual void OnRightButtonUp();

  // These methods for the different interactions in different modes
  // are overridden in subclasses to perform the correct motion. Since
  // they might be called from OnTimer, they do not have mouse coord parameters
  // (use interactor's GetEventPosition and GetLastEventPosition)
  virtual void Rotate();
  virtual void Spin();
  virtual void Pan();
  virtual void Dolly();
  virtual void UniformScale();

protected:
  vtkInteractorStyleTrackballActor();
  ~vtkInteractorStyleTrackballActor();

  void FindPickedActor(int x, int y);

  void Prop3DTransform(vtkProp3D *prop3D,
                       double *boxCenter,
                       int NumRotation,
                       double **rotate,
                       double *scale);

  double MotionFactor;

  vtkProp3D *InteractionProp;
  vtkCellPicker *InteractionPicker;

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

#endif