vtkCellGridMapper.h

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

#include "vtkMapper.h"
#include "vtkRenderingCoreModule.h" // For export macro.
#include "vtkUnsignedCharArray.h"   // For API.

VTK_ABI_NAMESPACE_BEGIN
class vtkCellGrid;
class vtkCellAttribute;
class vtkDataObject;
class vtkRenderer;

class VTKRENDERINGCORE_EXPORT vtkCellGridMapper : public vtkMapper
{
public:
  static vtkCellGridMapper* New();
  vtkTypeMacro(vtkCellGridMapper, vtkMapper);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  vtkSetMacro(VisualizePCoords, int);
  vtkGetMacro(VisualizePCoords, int);

  vtkSetMacro(VisualizeBasisFunction, int);
  vtkGetMacro(VisualizeBasisFunction, int);

  void Render(vtkRenderer*, vtkActor*) override {}


  void SetInputData(vtkCellGrid* in);
  vtkCellGrid* GetInput();


  bool Update(int port) override;
  bool Update() override;
  vtkTypeBool Update(int port, vtkInformationVector* requests) override;
  vtkTypeBool Update(vtkInformation* requests) override;

  void PrepareColormap(vtkScalarsToColors* cmap = nullptr);

  double* GetBounds() VTK_SIZEHINT(6) override;
  void GetBounds(double bounds[6]) override { this->Superclass::GetBounds(bounds); }

  bool HasTranslucentPolygonalGeometry() override;

protected:
  vtkCellGridMapper();
  ~vtkCellGridMapper() override = default;

  void ComputeBounds();
  int FillInputPortInformation(int, vtkInformation*) override;

  void CreateColormapTexture();

  virtual vtkCellAttribute* GetColorAttribute(vtkCellGrid* input) const;

  int VisualizePCoords = -1;
  int VisualizeBasisFunction = -1;

private:
  vtkCellGridMapper(const vtkCellGridMapper&) = delete;
  void operator=(const vtkCellGridMapper&) = delete;
};

VTK_ABI_NAMESPACE_END
#endif // vtkCellGridMapper_h