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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkHierarchicalDataIterator.h,v $
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.
=========================================================================*/
// .NAME vtkHierarchicalDataIterator - iterator to access datasets in a vtkHierarchicalDataIterator
// .SECTION Description
// vtkHierarchicalDataIterator is a concrete implementation of
// vtkCompositeDataIterator for vtkHierarchicalDataSet. It allows flat
// and forward access to the datasets in the hierchical dataset.
#ifndef __vtkHierarchicalDataIterator_h
#define __vtkHierarchicalDataIterator_h
#include "vtkCompositeDataIterator.h"
class vtkHierarchicalDataSet;
class vtkHierarchicalDataIteratorInternal;
class VTK_FILTERING_EXPORT vtkHierarchicalDataIterator : public vtkCompositeDataIterator
{
public:
static vtkHierarchicalDataIterator *New();
vtkTypeRevisionMacro(vtkHierarchicalDataIterator,vtkCompositeDataIterator);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Move the iterator to the beginning of the collection.
virtual void GoToFirstItem();
// Description:
// Move the iterator to the next item in the collection.
virtual void GoToNextItem();
// Description:
// Test whether the iterator is currently pointing to a valid
// item. Returns 1 for yes, 0 for no.
virtual int IsDoneWithTraversal();
// Description:
// Get the current item. Valid only when IsDoneWithTraversal()
// returns 1.
virtual vtkDataObject* GetCurrentDataObject();
// Description:
// Set the data object to iterator over.
void SetDataSet(vtkHierarchicalDataSet* dataset);
vtkGetObjectMacro(DataSet, vtkHierarchicalDataSet);
protected:
vtkHierarchicalDataIterator();
virtual ~vtkHierarchicalDataIterator();
void GoToNextNonEmptyLevel();
vtkHierarchicalDataSet* DataSet;
vtkHierarchicalDataIteratorInternal* Internal;
private:
vtkHierarchicalDataIterator(const vtkHierarchicalDataIterator&); // Not implemented.
void operator=(const vtkHierarchicalDataIterator&); // Not implemented.
};
#endif
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