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

  Program:   Visualization Toolkit
  Module:    vtkImageStack.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.

=========================================================================*/
#ifndef vtkImageStack_h
#define vtkImageStack_h

#include "vtkRenderingImageModule.h" // For export macro
#include "vtkImageSlice.h"

class vtkImageSliceCollection;
class vtkImageProperty;
class vtkImageMapper3D;
class vtkCollection;

class VTKRENDERINGIMAGE_EXPORT vtkImageStack : public vtkImageSlice
{
public:
  vtkTypeMacro(vtkImageStack,vtkImageSlice);
  void PrintSelf(ostream& os, vtkIndent indent);
  static vtkImageStack *New();

  void AddImage(vtkImageSlice *prop);

  void RemoveImage(vtkImageSlice *prop);

  int HasImage(vtkImageSlice *prop);

  vtkImageSliceCollection *GetImages() { return this->Images; }


  vtkSetMacro(ActiveLayer, int);
  int GetActiveLayer() { return this->ActiveLayer; }

  vtkImageSlice *GetActiveImage();

  vtkImageMapper3D *GetMapper();

  vtkImageProperty *GetProperty();


  double *GetBounds();
  void GetBounds(double bounds[6]) { this->vtkProp3D::GetBounds( bounds ); };

  unsigned long int GetMTime();

  unsigned long GetRedrawMTime();

  void ShallowCopy(vtkProp *prop);

  void GetImages(vtkPropCollection *);


  virtual int RenderOverlay(vtkViewport *viewport);
  virtual int RenderOpaqueGeometry(vtkViewport *viewport);
  virtual int RenderTranslucentPolygonalGeometry(vtkViewport *viewport);

  virtual int HasTranslucentPolygonalGeometry();

  void ReleaseGraphicsResources(vtkWindow *win);


  void InitPathTraversal();
  vtkAssemblyPath *GetNextPath();
  int GetNumberOfPaths();

  void BuildPaths(vtkAssemblyPaths *paths, vtkAssemblyPath *path);

protected:
  vtkImageStack();
  ~vtkImageStack();

  void SetMapper(vtkImageMapper3D *mapper);
  void SetProperty(vtkImageProperty *property);

  void PokeMatrices(vtkMatrix4x4 *matrix);
  void UpdatePaths();

  vtkTimeStamp PathTime;
  vtkCollection *ImageMatrices;
  vtkImageSliceCollection *Images;
  int ActiveLayer;

private:
  vtkImageStack(const vtkImageStack&);  // Not implemented.
  void operator=(const vtkImageStack&);  // Not implemented.
};

#endif