Common/vtkObjectBase.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkObjectBase.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.

=========================================================================*/
#ifndef __vtkObjectBase_h
#define __vtkObjectBase_h

#include "vtkIndent.h"
#include "vtkSystemIncludes.h"

class VTK_COMMON_EXPORT vtkObjectBase 
{
public:
  virtual const char *GetClassName() const {return "vtkObjectBase";};

  static int IsTypeOf(const char *name);

  virtual int IsA(const char *name);

  virtual void Delete();


  static vtkObjectBase *New() 
    {return new vtkObjectBase;}
  
#ifdef _WIN32
  // avoid dll boundary problems
  void* operator new( size_t tSize );
  void operator delete( void* p );
#endif 
  
  void Print(ostream& os);


  virtual void PrintSelf(ostream& os, vtkIndent indent);
  virtual void PrintHeader(ostream& os, vtkIndent indent);
  virtual void PrintTrailer(ostream& os, vtkIndent indent);

  void Register(vtkObjectBase* o);

  virtual void UnRegister(vtkObjectBase* o);


  int  GetReferenceCount() 
    {return this->ReferenceCount;}

  void SetReferenceCount(int);
  
  void PrintRevisions(ostream& os);
  
protected:
  vtkObjectBase(); 
  virtual ~vtkObjectBase(); 

  virtual void CollectRevisions(ostream& os);
  
  int ReferenceCount;      // Number of uses of this object by other objects

private:
  //BTX
  friend VTK_COMMON_EXPORT ostream& operator<<(ostream& os, vtkObjectBase& o);
  //ETX

protected:
//BTX
  vtkObjectBase(const vtkObjectBase&) {}
  void operator=(const vtkObjectBase&) {}
//ETX
};

#endif

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