vtkCameraPathRepresentation.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkCameraPathRepresentation_h
#define vtkCameraPathRepresentation_h
 
#include "vtkAbstractSplineRepresentation.h"
#include "vtkInteractionWidgetsModule.h" // For export macro
 
VTK_ABI_NAMESPACE_BEGIN
class vtkCameraHandleSource;
class vtkCamera;
 
class VTKINTERACTIONWIDGETS_EXPORT vtkCameraPathRepresentation
  : public vtkAbstractSplineRepresentation
{
public:
  static vtkCameraPathRepresentation* New();
  vtkTypeMacro(vtkCameraPathRepresentation, vtkAbstractSplineRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void SetDirectional(bool val) override;
 
  void SetNumberOfHandles(int npts) override;
 
  void SetParametricSpline(vtkParametricSpline* spline) override;
 
  void InitializeHandles(vtkPoints* points) override;
 
  void BuildRepresentation() override;
 
  void AddCameraAt(vtkCamera* camera, int index);
 
  void DeleteCameraAt(int index);
 
protected:
  vtkCameraPathRepresentation();
  ~vtkCameraPathRepresentation() override = default;
 
  void SizeHandles() override;
 
  void ClearCameraHandles();
 
  void InsertCamera(vtkCamera* camera, int index);
 
  void CreateDefaultHandles(int npts);
 
  void ReconfigureHandles(int newNPts, int oldNPts);
 
  int InsertHandleOnLine(double* pos) override;
 
  void EraseHandle(const int&) override;
 
  // Specialized methods to access handles
  vtkActor* GetHandleActor(int index) override;
  vtkHandleSource* GetHandleSource(int index) override;
  int GetHandleIndex(vtkProp* prop) override;
 
private:
  vtkCameraPathRepresentation(const vtkCameraPathRepresentation&) = delete;
  void operator=(const vtkCameraPathRepresentation&) = delete;
 
  void RebuildRepresentation();
 
  void UpdateConfiguration(int npts);
 
  std::vector<vtkSmartPointer<vtkCameraHandleSource>> CameraHandles;
  std::vector<vtkSmartPointer<vtkActor>> HandleActors;
};
 
VTK_ABI_NAMESPACE_END
#endif