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102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkInformationIterator.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkInformationIterator
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* @brief Iterates over keys of an information object
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*
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* vtkInformationIterator can be used to iterate over the keys of an
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* information object. The corresponding values can then be directly
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* obtained from the information object using the keys.
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*
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* @sa
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* vtkInformation vtkInformationKey
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*/
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#ifndef vtkInformationIterator_h
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#define vtkInformationIterator_h
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#include "vtkCommonCoreModule.h" // For export macro
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#include "vtkObject.h"
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class vtkInformation;
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class vtkInformationKey;
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class vtkInformationIteratorInternals;
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class VTKCOMMONCORE_EXPORT vtkInformationIterator : public vtkObject
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{
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public:
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static vtkInformationIterator *New();
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vtkTypeMacro(vtkInformationIterator,vtkObject);
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void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
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//@{
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/**
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* Set/Get the information to iterator over.
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*/
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void SetInformation(vtkInformation*);
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vtkGetObjectMacro(Information, vtkInformation);
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//@}
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/**
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* Set the function to iterate over. The iterator
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* will not hold a reference to the information object.
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* Can be used to optimize certain places by avoiding
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* garbage collection.
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*/
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void SetInformationWeak(vtkInformation*);
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/**
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* Move the iterator to the beginning of the collection.
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*/
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void InitTraversal() { this->GoToFirstItem(); }
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/**
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* Move the iterator to the beginning of the collection.
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*/
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virtual void GoToFirstItem();
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/**
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* Move the iterator to the next item in the collection.
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*/
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virtual void GoToNextItem();
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/**
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* Test whether the iterator is currently pointing to a valid
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* item. Returns 1 for yes, 0 for no.
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*/
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virtual int IsDoneWithTraversal();
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/**
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* Get the current item. Valid only when IsDoneWithTraversal()
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* returns 1.
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*/
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virtual vtkInformationKey* GetCurrentKey();
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protected:
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vtkInformationIterator();
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~vtkInformationIterator() VTK_OVERRIDE;
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vtkInformation* Information;
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vtkInformationIteratorInternals* Internal;
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bool ReferenceIsWeak;
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private:
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vtkInformationIterator(const vtkInformationIterator&) VTK_DELETE_FUNCTION;
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void operator=(const vtkInformationIterator&) VTK_DELETE_FUNCTION;
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};
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#endif
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