/usr/include/paraview/vtkInteractorStyleDrawPolygon.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  | /*=========================================================================
  Program:   Visualization Toolkit
  Module:    vtkInteractorStyleDrawPolygon.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 vtkInteractorStyleDrawPolygon - draw polygon during mouse move
// .SECTION Description
// This interactor style allows the user to draw a polygon in the render
// window using the left mouse button while mouse is moving.
// When the mouse button is released, a SelectionChangedEvent will be fired.
#ifndef vtkInteractorStyleDrawPolygon_h
#define vtkInteractorStyleDrawPolygon_h
#include "vtkInteractionStyleModule.h" // For export macro
#include "vtkInteractorStyle.h"
#include <vector>      // For returning Polygon Points
#include "vtkVector.h" // For Polygon Points
class vtkUnsignedCharArray;
class VTKINTERACTIONSTYLE_EXPORT vtkInteractorStyleDrawPolygon : public vtkInteractorStyle
{
public:
  static vtkInteractorStyleDrawPolygon *New();
  vtkTypeMacro(vtkInteractorStyleDrawPolygon, vtkInteractorStyle);
  void PrintSelf(ostream& os, vtkIndent indent);
  // Description:
  // Event bindings
  virtual void OnMouseMove();
  virtual void OnLeftButtonDown();
  virtual void OnLeftButtonUp();
  // Description:
  // Whether to draw polygon in screen pixels. Default is ON
  vtkSetMacro(DrawPolygonPixels, bool);
  vtkGetMacro(DrawPolygonPixels, bool);
  vtkBooleanMacro(DrawPolygonPixels, bool);
  // Description:
  // Get the current polygon points in display units
  std::vector<vtkVector2i> GetPolygonPoints();
protected:
  vtkInteractorStyleDrawPolygon();
  ~vtkInteractorStyleDrawPolygon();
  virtual void DrawPolygon();
  int StartPosition[2];
  int EndPosition[2];
  int Moving;
  bool DrawPolygonPixels;
  vtkUnsignedCharArray *PixelArray;
private:
  vtkInteractorStyleDrawPolygon(const vtkInteractorStyleDrawPolygon&);  // Not implemented
  void operator=(const vtkInteractorStyleDrawPolygon&);  // Not implemented
  class vtkInternal;
  vtkInternal* Internal;
};
#endif
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