/usr/include/paraview/vtkInteractorStyleJoystickCamera.h is in paraview-dev 5.0.1+dfsg1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79  | /*=========================================================================
  Program:   Visualization Toolkit
  Module:    vtkInteractorStyleJoystickCamera.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.
=========================================================================*/
// .NAME vtkInteractorStyleJoystickCamera - interactive manipulation of the camera
// .SECTION Description
// vtkInteractorStyleJoystickCamera allows the user to move (rotate, pan,
// etc.) the camera, the point of view for the scene.  The position of the
// mouse relative to the center of the scene determines the speed at which
// the camera moves, and the speed of the mouse movement determines the
// acceleration of the camera, so the camera continues to move even if the
// mouse if not moving.
// For a 3-button mouse, the left button is for rotation, the right button
// for zooming, the middle button for panning, and ctrl + left button for
// spinning.  (With fewer mouse buttons, ctrl + shift + left button is
// for zooming, and shift + left button is for panning.)
// .SECTION See Also
// vtkInteractorStyleJoystickActor vtkInteractorStyleTrackballCamera
// vtkInteractorStyleTrackballActor
#ifndef vtkInteractorStyleJoystickCamera_h
#define vtkInteractorStyleJoystickCamera_h
#include "vtkInteractionStyleModule.h" // For export macro
#include "vtkInteractorStyle.h"
class VTKINTERACTIONSTYLE_EXPORT vtkInteractorStyleJoystickCamera : public vtkInteractorStyle
{
public:
  static vtkInteractorStyleJoystickCamera *New();
  vtkTypeMacro(vtkInteractorStyleJoystickCamera,vtkInteractorStyle);
  void PrintSelf(ostream& os, vtkIndent indent);
  // Description:
  // Event bindings controlling the effects of pressing mouse buttons
  // or moving the mouse.
  virtual void OnMouseMove();
  virtual void OnLeftButtonDown();
  virtual void OnLeftButtonUp();
  virtual void OnMiddleButtonDown();
  virtual void OnMiddleButtonUp();
  virtual void OnRightButtonDown();
  virtual void OnRightButtonUp();
  virtual void OnMouseWheelForward();
  virtual void OnMouseWheelBackward();
  // These methods for the different interactions in different modes
  // are overridden in subclasses to perform the correct motion. Since
  // they are called by 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();
protected:
  vtkInteractorStyleJoystickCamera();
  ~vtkInteractorStyleJoystickCamera();
  virtual void Dolly(double factor);
private:
  vtkInteractorStyleJoystickCamera(const vtkInteractorStyleJoystickCamera&);  // Not implemented.
  void operator=(const vtkInteractorStyleJoystickCamera&);  // Not implemented.
};
#endif
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