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common/vtkStack.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkStack.h,v $
00005   Language:  C++
00006 
00007 
00008 Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
00009 All rights reserved.
00010 
00011 Redistribution and use in source and binary forms, with or without
00012 modification, are permitted provided that the following conditions are met:
00013 
00014  * Redistributions of source code must retain the above copyright notice,
00015    this list of conditions and the following disclaimer.
00016 
00017  * Redistributions in binary form must reproduce the above copyright notice,
00018    this list of conditions and the following disclaimer in the documentation
00019    and/or other materials provided with the distribution.
00020 
00021  * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
00022    of any contributors may be used to endorse or promote products derived
00023    from this software without specific prior written permission.
00024 
00025  * Modified source versions must be plainly marked as such, and must not be
00026    misrepresented as being the original software.
00027 
00028 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
00029 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00030 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00031 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
00032 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00033 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00034 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00035 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00036 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00037 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00038 
00039 =========================================================================*/
00054 #ifndef __vtkStack_h
00055 #define __vtkStack_h
00056 
00057 #include "vtkObject.h"
00058 
00059 //BTX begin tcl exclude
00060 class vtkStackElement //;prevents pick-up by man page generator
00061 {
00062  public:
00063   vtkStackElement():Item(NULL),Next(NULL) {};
00064   vtkObject *Item;
00065   vtkStackElement *Next;
00066 };
00067 //ETX end tcl exclude
00068 
00069 class VTK_EXPORT vtkStack : public vtkObject
00070 {
00071 public:
00072   static vtkStack *New();
00073 
00074   vtkTypeMacro(vtkStack,vtkObject);
00075   void PrintSelf(ostream& os, vtkIndent indent);
00076 
00079   void Push(vtkObject *);
00080 
00082   vtkObject *Pop();
00083 
00085   vtkObject *GetTop();
00086 
00088   int  GetNumberOfItems();
00089 
00090 protected:
00091   vtkStack();
00092   ~vtkStack();
00093   vtkStack(const vtkStack&) {};
00094   void operator=(const vtkStack&) {};
00095 
00096   int NumberOfItems;
00097   vtkStackElement *Top;
00098   vtkStackElement *Bottom;
00099 };
00100 
00101 #endif

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