00001 /*========================================================================= 00002 00003 Program: Visualization Toolkit 00004 Module: $RCSfile: vtkCollectionIterator.h,v $ 00005 Language: C++ 00006 00007 Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen 00008 All rights reserved. 00009 See Copyright.txt or http://www.kitware.com/Copyright.htm for details. 00010 00011 This software is distributed WITHOUT ANY WARRANTY; without even 00012 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 00013 PURPOSE. See the above copyright notice for more information. 00014 00015 =========================================================================*/ 00041 #ifndef __vtkCollectionIterator_h 00042 #define __vtkCollectionIterator_h 00043 00044 #include "vtkObject.h" 00045 00046 class vtkCollection; 00047 class vtkCollectionElement; 00048 00049 class VTK_COMMON_EXPORT vtkCollectionIterator : public vtkObject 00050 { 00051 public: 00052 vtkTypeRevisionMacro(vtkCollectionIterator,vtkObject); 00053 void PrintSelf(ostream& os, vtkIndent indent); 00054 static vtkCollectionIterator* New(); 00055 00057 00058 virtual void SetCollection(vtkCollection*); 00059 vtkGetObjectMacro(Collection, vtkCollection); 00061 00063 void InitTraversal() { this->GoToFirstItem(); } 00064 00066 void GoToFirstItem(); 00067 00069 void GoToNextItem(); 00070 00073 int IsDoneWithTraversal(); 00074 00077 vtkObject* GetObject(); 00078 00079 protected: 00080 vtkCollectionIterator(); 00081 ~vtkCollectionIterator(); 00082 00083 // The collection over which we are iterating. 00084 vtkCollection* Collection; 00085 00086 // The current iterator position. 00087 vtkCollectionElement* Element; 00088 00089 private: 00090 vtkCollectionIterator(const vtkCollectionIterator&); // Not implemented 00091 void operator=(const vtkCollectionIterator&); // Not implemented 00092 }; 00093 00094 #endif