vtkLabelHierarchyIterator.h

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

  Program:   Visualization Toolkit
  Module:    vtkLabelHierarchyIterator.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 2008 Sandia Corporation.
  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
  the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#ifndef vtkLabelHierarchyIterator_h
#define vtkLabelHierarchyIterator_h

#include "vtkRenderingLabelModule.h" // For export macro
#include "vtkObject.h"
#include "vtkStdString.h" // for std string
#include "vtkUnicodeString.h" // for unicode string

class vtkIdTypeArray;
class vtkLabelHierarchy;
class vtkPolyData;

class VTKRENDERINGLABEL_EXPORT vtkLabelHierarchyIterator : public vtkObject
{
public:
  vtkTypeMacro(vtkLabelHierarchyIterator,vtkObject);
  void PrintSelf( ostream& os, vtkIndent indent ) override;

  virtual void Begin( vtkIdTypeArray* ) { }

  virtual void Next() { }

  virtual bool IsAtEnd() { return true; }

  virtual void GetPoint( double x[3] );

  virtual void GetSize( double sz[2] );

  virtual void GetBoundedSize( double sz[2] );

  virtual int GetType();

  virtual vtkStdString GetLabel();

  virtual vtkUnicodeString GetUnicodeLabel();

  virtual double GetOrientation();

  virtual vtkIdType GetLabelId() { return -1; }


  vtkGetObjectMacro(Hierarchy, vtkLabelHierarchy);

  virtual void SetTraversedBounds( vtkPolyData* );

  virtual void GetNodeGeometry( double ctr[3], double& size ) = 0;

  virtual void BoxNode();

  virtual void BoxAllNodes( vtkPolyData* );


  vtkSetMacro(AllBounds,int);
  vtkGetMacro(AllBounds,int);

protected:
  vtkLabelHierarchyIterator();
  ~vtkLabelHierarchyIterator() override;

  void BoxNodeInternal3( const double* ctr, double sz );
  void BoxNodeInternal2( const double* ctr, double sz );

  virtual void SetHierarchy( vtkLabelHierarchy* h );

  vtkLabelHierarchy* Hierarchy;
  vtkPolyData* TraversedBounds;
  double BoundsFactor;
  int AllBounds;
  int AllBoundsRecorded;

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

#endif // vtkLabelHierarchyIterator_h