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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkMultiGroupDataIterator.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 vtkMultiGroupDataIterator - iterator to access datasets in a vtkMultiGroupDataIterator
// .SECTION Description
// vtkMultiGroupDataIterator is a concrete implementation of
// vtkCompositeDataIterator for vtkMultiGroupDataSet. It allows flat
// and forward access to the datasets in the hierchical dataset.
#ifndef __vtkMultiGroupDataIterator_h
#define __vtkMultiGroupDataIterator_h
#include "vtkCompositeDataIterator.h"
class vtkInformation;
class vtkMultiGroupDataSet;
class vtkMultiGroupDataIteratorInternal;
class VTK_FILTERING_EXPORT vtkMultiGroupDataIterator : public vtkCompositeDataIterator
{
public:
static vtkMultiGroupDataIterator *New();
vtkTypeRevisionMacro(vtkMultiGroupDataIterator,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 information object associated with the current
// data object.
virtual vtkInformation* GetCurrentInformationObject();
// Description:
// Get the current item. Valid only when IsDoneWithTraversal()
// returns 1.
virtual vtkDataObject* GetCurrentDataObject();
// Description:
// Set the data object to iterator over.
void SetDataSet(vtkMultiGroupDataSet* dataset);
vtkMultiGroupDataSet* GetDataSet()
{
return this->DataSet;
}
protected:
vtkMultiGroupDataIterator();
virtual ~vtkMultiGroupDataIterator();
void GoToNextNonEmptyGroup();
vtkMultiGroupDataSet* DataSet;
vtkMultiGroupDataIteratorInternal* Internal;
private:
vtkMultiGroupDataIterator(const vtkMultiGroupDataIterator&); // Not implemented.
void operator=(const vtkMultiGroupDataIterator&); // Not implemented.
};
#endif
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