vtkPVInteractorStyle.h

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// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkPVInteractorStyle_h
#define vtkPVInteractorStyle_h

#include "vtkInteractorStyleTrackballCamera.h"
#include "vtkPVVTKExtensionsInteractionStyleModule.h" // needed for export macro

class vtkCameraManipulator;
class vtkCollection;

class VTKPVVTKEXTENSIONSINTERACTIONSTYLE_EXPORT vtkPVInteractorStyle
  : public vtkInteractorStyleTrackballCamera
{
public:
  static vtkPVInteractorStyle* New();
  vtkTypeMacro(vtkPVInteractorStyle, vtkInteractorStyleTrackballCamera);
  void PrintSelf(ostream& os, vtkIndent indent) override;


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


  void OnKeyDown() override;
  void OnKeyUp() override;

  void OnChar() override;

  void AddManipulator(vtkCameraManipulator* m);

  void RemoveAllManipulators();


  vtkGetObjectMacro(CameraManipulators, vtkCollection);


  vtkSetMacro(MouseWheelZoomsToCursor, bool);
  vtkGetMacro(MouseWheelZoomsToCursor, bool);


  vtkSetVector3Macro(CenterOfRotation, double);
  vtkGetVector3Macro(CenterOfRotation, double);


  vtkSetMacro(RotationFactor, double);
  vtkGetMacro(RotationFactor, double);

  virtual vtkCameraManipulator* FindManipulator(int button, int shift, int control);

  static void DollyToPosition(double fact, int* position, vtkRenderer* renderer);

  static void TranslateCamera(vtkRenderer* renderer, int toX, int toY, int fromX, int fromY);

  using vtkInteractorStyleTrackballCamera::Dolly;

protected:
  vtkPVInteractorStyle();
  ~vtkPVInteractorStyle() override;

  void Dolly(double factor) override;

  vtkCameraManipulator* CurrentManipulator;
  bool MouseWheelZoomsToCursor = false;
  double CenterOfRotation[3];
  double RotationFactor;

  // The CameraInteractors also store there button and modifier.
  vtkCollection* CameraManipulators;

  void OnButtonDown(int button, int shift, int control);
  void OnButtonUp(int button);
  void ResetLights();

  vtkPVInteractorStyle(const vtkPVInteractorStyle&) = delete;
  void operator=(const vtkPVInteractorStyle&) = delete;
};

#endif