/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkImageDataToUniformGrid.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
/**
 * @class   vtkImageDataToUniformGrid
 * @brief   convert vtkImageData to vtkUniformGrid
 *
 * Convert a vtkImageData to vtkUniformGrid and set blanking based on
 * specified by named arrays. By default, values of 0 in the named
 * array will result in the point or cell being blanked. Set Reverse
 * to 1 to indicate that values of 0 will result in the point or
 * cell to not be blanked.
 */

#ifndef vtkImageDataToUniformGrid_h
#define vtkImageDataToUniformGrid_h

#include "vtkDataObjectAlgorithm.h"
#include "vtkFiltersGeometryModule.h" // For export macro

class vtkDataArray;
class vtkFieldData;
class vtkImageData;
class vtkUniformGrid;

class VTKFILTERSGEOMETRY_EXPORT vtkImageDataToUniformGrid : public vtkDataObjectAlgorithm
{
public:
  static vtkImageDataToUniformGrid* New();
  vtkTypeMacro(vtkImageDataToUniformGrid, vtkDataObjectAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  ///@{
  /**
   * By default, values of 0 (i.e. Reverse = 0) in the array will
   * result in that point or cell to be blanked. Set Reverse to
   * 1 to make points or cells to not be blanked for array values
   * of 0.
   */
  vtkSetClampMacro(Reverse, vtkTypeBool, 0, 1);
  vtkGetMacro(Reverse, vtkTypeBool);
  vtkBooleanMacro(Reverse, vtkTypeBool);
  ///@}

protected:
  vtkImageDataToUniformGrid();
  ~vtkImageDataToUniformGrid() override;

  int RequestData(
    vtkInformation* req, vtkInformationVector** inV, vtkInformationVector* outV) override;
  int RequestDataObject(
    vtkInformation* req, vtkInformationVector** inV, vtkInformationVector* outV) override;

  int FillInputPortInformation(int port, vtkInformation* info) override;
  int FillOutputPortInformation(int port, vtkInformation* info) override;

  virtual int Process(
    vtkImageData* input, int association, const char* arrayName, vtkUniformGrid* output);

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

  vtkTypeBool Reverse;
};

#endif
