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

  Program:   Visualization Toolkit
  Module:    vtkOrderedCompositeDistributor.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.

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

/*
 * Copyright 2005 Sandia Corporation.
 * Under the terms of Contract DE-AC04-94AL85000, there is a non-exclusive
 * license for use of this work by or on behalf of the
 * U.S. Government. Redistribution and use in source and binary forms, with
 * or without modification, are permitted provided that this Notice and any
 * statement of authorship are reproduced on all copies.
 */

/**
 * @class   vtkOrderedCompositeDistributor
 *
 *
 *
 * This class distributes data for use with ordered compositing (i.e. with
 * IceT).  The composite distributor takes the same vtkPKdTree
 * that IceT and will use that to distribute the data.
 *
 * Input poly data will be converted back to poly data on the output.
 *
 * This class also has an optional pass through mode to make it easy to
 * turn ordered compositing on and off.
 *
*/

#ifndef vtkOrderedCompositeDistributor_h
#define vtkOrderedCompositeDistributor_h

#include "vtkPVVTKExtensionsFiltersRenderingModule.h" // needed for export macro
#include "vtkPointSetAlgorithm.h"

class vtkBSPCuts;
class vtkDataSet;
class vtkDataSetSurfaceFilter;
class vtkDistributedDataFilter;
class vtkMultiProcessController;
class vtkPKdTree;

class VTKPVVTKEXTENSIONSFILTERSRENDERING_EXPORT vtkOrderedCompositeDistributor
  : public vtkPointSetAlgorithm
{
public:
  vtkTypeMacro(vtkOrderedCompositeDistributor, vtkPointSetAlgorithm);
  static vtkOrderedCompositeDistributor* New();
  void PrintSelf(ostream& os, vtkIndent indent) override;

  //@{
  /**
   * Set the vtkPKdTree to distribute with.
   */
  virtual void SetPKdTree(vtkPKdTree*);
  vtkGetObjectMacro(PKdTree, vtkPKdTree);
  //@}

  //@{
  /**
   * Set/get the controller to distribute with.
   */
  virtual void SetController(vtkMultiProcessController*);
  vtkGetObjectMacro(Controller, vtkMultiProcessController);
  //@}

  //@{
  /**
   * When on, data is passed through without compositing.
   */
  vtkSetMacro(PassThrough, bool);
  vtkGetMacro(PassThrough, bool);
  vtkBooleanMacro(PassThrough, bool);
  //@}

  //@{
  /**
   * When non-null, the output will be converted to the given type.
   */
  vtkSetStringMacro(OutputType);
  vtkGetStringMacro(OutputType);
  //@}

  /**
   * Boundary mode values. Note, the deliberately match
   * vtkDistributedDataFilter. However we can't include vtkDistributedDataFilter
   * here here it's not available in non-MPI builds.
   */
  enum BoundaryModes
  {
    ASSIGN_TO_ONE_REGION = 0,
    ASSIGN_TO_ALL_INTERSECTING_REGIONS = 1,
    SPLIT_BOUNDARY_CELLS = 2
  };

  //@{
  /**
   * Get/Set the mode to use to handle cells on the boundary of the KdTree.
   * Default is SPLIT_BOUNDARY_CELLS.
   */
  vtkSetClampMacro(BoundaryMode, int, ASSIGN_TO_ONE_REGION, SPLIT_BOUNDARY_CELLS);
  vtkGetMacro(BoundaryMode, int);
  //@}

protected:
  vtkOrderedCompositeDistributor();
  ~vtkOrderedCompositeDistributor() override;

  int BoundaryMode;
  char* OutputType;
  bool PassThrough;
  vtkPKdTree* PKdTree;
  vtkMultiProcessController* Controller;

  int FillInputPortInformation(int port, vtkInformation* info) override;
  int RequestDataObject(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;

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

#endif // vtkOrderedCompositeDistributor_h
