vtkInteractorStyleRubberBandZoom.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkInteractorStyleRubberBandZoom.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 vtkInteractorStyleRubberBandZoom_h
#define vtkInteractorStyleRubberBandZoom_h
 
#include "vtkInteractionStyleModule.h" // For export macro
#include "vtkInteractorStyle.h"
#include "vtkRect.h" // for vtkRecti
 
class vtkUnsignedCharArray;
 
class VTKINTERACTIONSTYLE_EXPORT vtkInteractorStyleRubberBandZoom : public vtkInteractorStyle
{
public:
  static vtkInteractorStyleRubberBandZoom* New();
  vtkTypeMacro(vtkInteractorStyleRubberBandZoom, vtkInteractorStyle);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  vtkSetMacro(LockAspectToViewport, bool);
  vtkGetMacro(LockAspectToViewport, bool);
  vtkBooleanMacro(LockAspectToViewport, bool);
 
 
  vtkSetMacro(CenterAtStartPosition, bool);
  vtkGetMacro(CenterAtStartPosition, bool);
  vtkBooleanMacro(CenterAtStartPosition, bool);
 
 
  vtkSetMacro(UseDollyForPerspectiveProjection, bool);
  vtkGetMacro(UseDollyForPerspectiveProjection, bool);
  vtkBooleanMacro(UseDollyForPerspectiveProjection, bool);
 
 
  void OnMouseMove() override;
  void OnLeftButtonDown() override;
  void OnLeftButtonUp() override;
 
protected:
  vtkInteractorStyleRubberBandZoom();
  ~vtkInteractorStyleRubberBandZoom() override;
 
  void Zoom() override;
 
  virtual void ZoomTraditional(const vtkRecti& box);
 
  virtual vtkVector3d CalculatePerspectiveZoomFocalPoint(const vtkRecti& box) const;
 
  int StartPosition[2];
  int EndPosition[2];
  int Moving;
  bool LockAspectToViewport;
  bool CenterAtStartPosition;
  bool UseDollyForPerspectiveProjection;
  vtkUnsignedCharArray* PixelArray;
 
private:
  vtkInteractorStyleRubberBandZoom(const vtkInteractorStyleRubberBandZoom&) = delete;
  void operator=(const vtkInteractorStyleRubberBandZoom&) = delete;
 
  void AdjustBox(int startPosition[2], int endPosition[2]) const;
};
 
#endif