vtkPVTrackballZoom.h

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#pragma once
 
#include "qPCL.h"  // needed for export macro
#include "vtkCameraManipulator.h"
 
class QPCL_ENGINE_LIB_API vtkPVTrackballZoom : public vtkCameraManipulator {
public:
    static vtkPVTrackballZoom* New();
    vtkTypeMacro(vtkPVTrackballZoom, vtkCameraManipulator);
    void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
    void OnMouseMove(int x,
                     int y,
                     vtkRenderer* ren,
                     vtkRenderWindowInteractor* rwi) override;
    void OnButtonDown(int x,
                      int y,
                      vtkRenderer* ren,
                      vtkRenderWindowInteractor* rwi) override;
    void OnButtonUp(int x,
                    int y,
                    vtkRenderer* ren,
                    vtkRenderWindowInteractor* rwi) override;
 
    vtkSetMacro(UseDollyForPerspectiveProjection, bool);
    vtkGetMacro(UseDollyForPerspectiveProjection, bool);
    vtkBooleanMacro(UseDollyForPerspectiveProjection, bool);
 
protected:
    vtkPVTrackballZoom();
    ~vtkPVTrackballZoom() override;
 
    bool UseDollyForPerspectiveProjection;
    double ZoomScale;
 
    vtkPVTrackballZoom(const vtkPVTrackballZoom&) = delete;
    void operator=(const vtkPVTrackballZoom&) = delete;
};