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

  Program:   Visualization Toolkit
  Module:    vtkImageChangeInformation.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   vtkImageChangeInformation
 * @brief   modify spacing, origin and extent.
 *
 * vtkImageChangeInformation  modify the spacing, origin, or extent of
 * the data without changing the data itself.  The data is not resampled
 * by this filter, only the information accompanying the data is modified.
*/

#ifndef vtkImageChangeInformation_h
#define vtkImageChangeInformation_h

#include "vtkImagingCoreModule.h" // For export macro
#include "vtkImageAlgorithm.h"

class vtkImageData;

class VTKIMAGINGCORE_EXPORT vtkImageChangeInformation : public vtkImageAlgorithm
{
public:
  static vtkImageChangeInformation *New();
  vtkTypeMacro(vtkImageChangeInformation, vtkImageAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  //@{
  /**
   * Copy the information from another data set.  By default,
   * the information is copied from the input.
   */
  virtual void SetInformationInputData(vtkImageData*);
  virtual vtkImageData *GetInformationInput();
  //@}

  //@{
  /**
   * Specify new starting values for the extent explicitly.
   * These values are used as WholeExtent[0], WholeExtent[2] and
   * WholeExtent[4] of the output.  The default is to the
   * use the extent start of the Input, or of the InformationInput
   * if InformationInput is set.
   */
  vtkSetVector3Macro(OutputExtentStart, int);
  vtkGetVector3Macro(OutputExtentStart, int);
  //@}

  //@{
  /**
   * Specify a new data spacing explicitly.  The default is to
   * use the spacing of the Input, or of the InformationInput
   * if InformationInput is set.
   */
  vtkSetVector3Macro(OutputSpacing, double);
  vtkGetVector3Macro(OutputSpacing, double);
  //@}

  //@{
  /**
   * Specify a new data origin explicitly.  The default is to
   * use the origin of the Input, or of the InformationInput
   * if InformationInput is set.
   */
  vtkSetVector3Macro(OutputOrigin, double);
  vtkGetVector3Macro(OutputOrigin, double);
  //@}

  //@{
  /**
   * Set the Origin of the output so that image coordinate (0,0,0)
   * lies at the Center of the data set.  This will override
   * SetOutputOrigin.  This is often a useful operation to apply
   * before using vtkImageReslice to apply a transformation to an image.
   */
  vtkSetMacro(CenterImage, int);
  vtkBooleanMacro(CenterImage, int);
  vtkGetMacro(CenterImage, int);
  //@}

  //@{
  /**
   * Apply a translation to the extent.
   */
  vtkSetVector3Macro(ExtentTranslation, int);
  vtkGetVector3Macro(ExtentTranslation, int);
  //@}

  //@{
  /**
   * Apply a scale factor to the spacing.
   */
  vtkSetVector3Macro(SpacingScale, double);
  vtkGetVector3Macro(SpacingScale, double);
  //@}

  //@{
  /**
   * Apply a translation to the origin.
   */
  vtkSetVector3Macro(OriginTranslation, double);
  vtkGetVector3Macro(OriginTranslation, double);
  //@}

  //@{
  /**
   * Apply a scale to the origin.  The scale is applied
   * before the translation.
   */
  vtkSetVector3Macro(OriginScale, double);
  vtkGetVector3Macro(OriginScale, double);
  //@}

protected:
  vtkImageChangeInformation();
  ~vtkImageChangeInformation() override;

  int CenterImage;

  int OutputExtentStart[3];
  int ExtentTranslation[3];
  int FinalExtentTranslation[3];

  double OutputSpacing[3];
  double SpacingScale[3];

  double OutputOrigin[3];
  double OriginScale[3];
  double OriginTranslation[3];

  int RequestUpdateExtent (vtkInformation *,
                                   vtkInformationVector **,
                                   vtkInformationVector *) override;
  int RequestInformation (vtkInformation *,
                                  vtkInformationVector **,
                                  vtkInformationVector *) override;

  int RequestData(vtkInformation *,
                          vtkInformationVector **,
                          vtkInformationVector *) override;

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

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



#endif



