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/*=========================================================================
Program: Visualization Toolkit
Module: vtkUniformGridAMRDataIterator.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.
=========================================================================*/
// .NAME vtkUniformGridAMRDataIterator - subclass of vtkCompositeDataIterator
// with API to get current level and dataset index.
// .SECTION Description
#ifndef vtkUniformGridAMRDataIterator_h
#define vtkUniformGridAMRDataIterator_h
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkCompositeDataIterator.h"
#include "vtkSmartPointer.h" //for member variable Information
class vtkInformation;
class vtkAMRInformation;
class vtkAMRDataInternals;
class vtkUniformGridAMR;
class AMRIndexIterator;
class VTKCOMMONDATAMODEL_EXPORT vtkUniformGridAMRDataIterator :
public vtkCompositeDataIterator
{
public:
static vtkUniformGridAMRDataIterator* New();
vtkTypeMacro(vtkUniformGridAMRDataIterator, vtkCompositeDataIterator);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Returns the meta-data associated with the current item.
// Note that this points to a single instance of vtkInformation object
// allocated by the iterator and will be changed as soon as GoToNextItem is
// called.
virtual vtkInformation* GetCurrentMetaData();
// Description:
virtual int HasCurrentMetaData() { return 1;}
// Description:
// Returns the current item. Valid only when IsDoneWithTraversal() returns 0.
virtual vtkDataObject* GetCurrentDataObject();
// Description:
// Flat index is an index obtained by traversing the tree in preorder.
// This can be used to uniquely identify nodes in the tree.
// Not valid if IsDoneWithTraversal() returns true.
unsigned int GetCurrentFlatIndex();
// Description:
// Returns the level for the current dataset.
virtual unsigned int GetCurrentLevel();
// Description:
// Returns the dataset index for the current data object. Valid only if the
// current data is a leaf node i.e. no a composite dataset.
virtual unsigned int GetCurrentIndex();
// 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 finished with the traversal.
// Returns 1 for yes, and 0 for no.
// It is safe to call any of the GetCurrent...() methods only when
// IsDoneWithTraversal() returns 0.
virtual int IsDoneWithTraversal();
//BTX
protected:
vtkUniformGridAMRDataIterator();
~vtkUniformGridAMRDataIterator();
vtkSmartPointer<AMRIndexIterator> Iter;
private:
vtkUniformGridAMRDataIterator(const vtkUniformGridAMRDataIterator&); // Not implemented.
void operator=(const vtkUniformGridAMRDataIterator&); // Not implemented.
vtkSmartPointer<vtkInformation> Information;
vtkSmartPointer<vtkUniformGridAMR> AMR;
vtkAMRInformation* AMRInfo;
vtkAMRDataInternals* AMRData;
void GetCurrentIndexPair(unsigned int& level, unsigned int& id);
//ETX
};
#endif
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