vtkSplineRepresentation.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkSplineRepresentation_h
#define vtkSplineRepresentation_h

#include "vtkAbstractSplineRepresentation.h"
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkWrappingHints.h"            // For VTK_MARSHALAUTO

VTK_ABI_NAMESPACE_BEGIN
class vtkPointHandleSource;

class VTKINTERACTIONWIDGETS_EXPORT VTK_MARSHALAUTO vtkSplineRepresentation
  : public vtkAbstractSplineRepresentation
{
public:
  static vtkSplineRepresentation* New();
  vtkTypeMacro(vtkSplineRepresentation, vtkAbstractSplineRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void SetNumberOfHandles(int npts) override;

  void SetParametricSpline(vtkParametricSpline* spline) override;

  void InitializeHandles(vtkPoints* points) override;

  void BuildRepresentation() override;

protected:
  vtkSplineRepresentation();
  ~vtkSplineRepresentation() override;

  int InsertHandleOnLine(double* pos) override;

  void ClearHandles();

  void AllocateHandles(int npts);

  void CreateDefaultHandles(int npts);

  void ReconfigureHandles(int npts);

  // Specialized methods to access handles
  vtkActor* GetHandleActor(int index) override;
  vtkHandleSource* GetHandleSource(int index) override;
  int GetHandleIndex(vtkProp* prop) override;

private:
  vtkSplineRepresentation(const vtkSplineRepresentation&) = delete;
  void operator=(const vtkSplineRepresentation&) = delete;

  void RebuildRepresentation();

  // Glyphs representing hot spots (e.g., handles)
  std::vector<vtkSmartPointer<vtkPointHandleSource>> PointHandles;
  std::vector<vtkSmartPointer<vtkActor>> HandleActors;
};

VTK_ABI_NAMESPACE_END
#endif