// File generated by CPPExt (Value)
//
//                     Copyright (C) 1991 - 2000 by  
//                      Matra Datavision SA.  All rights reserved.
//  
//                     Copyright (C) 2001 - 2004 by
//                     Open CASCADE SA.  All rights reserved.
// 
// This file is part of the Open CASCADE Technology software.
//
// This software may be distributed and/or modified under the terms and
// conditions of the Open CASCADE Public License as defined by Open CASCADE SA
// and appearing in the file LICENSE included in the packaging of this file.
//  
// This software is distributed on an "AS IS" basis, without warranty of any
// kind, and Open CASCADE SA hereby disclaims all such warranties,
// including without limitation, any warranties of merchantability, fitness
// for a particular purpose or non-infringement. Please see the License for
// the specific terms and conditions governing rights and limitations under the
// License.

#ifndef _TNaming_Iterator_HeaderFile
#define _TNaming_Iterator_HeaderFile

#ifndef _TNaming_PtrNode_HeaderFile
#include <TNaming_PtrNode.hxx>
#endif
#ifndef _Standard_Integer_HeaderFile
#include <Standard_Integer.hxx>
#endif
#ifndef _Handle_TNaming_NamedShape_HeaderFile
#include <Handle_TNaming_NamedShape.hxx>
#endif
#ifndef _Standard_Boolean_HeaderFile
#include <Standard_Boolean.hxx>
#endif
#ifndef _TNaming_Evolution_HeaderFile
#include <TNaming_Evolution.hxx>
#endif
class Standard_NoMoreObject;
class Standard_NoSuchObject;
class TNaming_NewShapeIterator;
class TNaming_OldShapeIterator;
class TNaming_NamedShape;
class TDF_Label;
class TopoDS_Shape;


#ifndef _Standard_HeaderFile
#include <Standard.hxx>
#endif
#ifndef _Standard_Macro_HeaderFile
#include <Standard_Macro.hxx>
#endif

//! A tool to visit the contents of a named shape attribute. <br>
//! Pairs of shapes in the attribute are iterated, one <br>
//! being the pre-modification or the old shape, and <br>
//! the other the post-modification or the new shape. <br>
//! This allows you to have a full access to all <br>
//! contents of an attribute. If, on the other hand, you <br>
//! are only interested in topological entities stored <br>
//! in the attribute, you can use the functions <br>
//! GetShape and CurrentShape in TNaming_Tool. <br>
class TNaming_Iterator  {

public:

    void* operator new(size_t,void* anAddress) 
      {
        return anAddress;
      }
    void* operator new(size_t size) 
      { 
        return Standard::Allocate(size); 
      }
    void  operator delete(void *anAddress) 
      { 
        if (anAddress) Standard::Free((Standard_Address&)anAddress); 
      }
 // Methods PUBLIC
 // 

//! Iterates on all  the history records in <br>
//!          <anAtt>. <br>
Standard_EXPORT TNaming_Iterator(const Handle(TNaming_NamedShape)& anAtt);

//! Iterates on all  the history records in <br>
//!          the current transaction <br>
Standard_EXPORT TNaming_Iterator(const TDF_Label& aLabel);

//! Iterates on all  the history records in <br>
//!          the transaction <aTrans> <br>
Standard_EXPORT TNaming_Iterator(const TDF_Label& aLabel,const Standard_Integer aTrans);
//! Returns True if there is a current Item in <br>
//!          the iteration. <br>
  Standard_Boolean More() const;

//! Moves the iteration to the next Item <br>
Standard_EXPORT   void Next() ;

//! Returns the old shape in this iterator object. <br>
//! This shape can be a null one. <br>
Standard_EXPORT  const TopoDS_Shape& OldShape() const;

//! Returns the new shape in this iterator object. <br>
Standard_EXPORT  const TopoDS_Shape& NewShape() const;

//! Returns true if the  new  shape is a modification  (split, <br>
//!          fuse,etc...) of the old shape. <br>
//! <br>
Standard_EXPORT   Standard_Boolean IsModification() const;


Standard_EXPORT   TNaming_Evolution Evolution() const;


friend class TNaming_NewShapeIterator;
friend class TNaming_OldShapeIterator;



protected:

 // Methods PROTECTED
 // 


 // Fields PROTECTED
 //


private: 

 // Methods PRIVATE
 // 


 // Fields PRIVATE
 //
TNaming_PtrNode myNode;
Standard_Integer myTrans;


};


#include <TNaming_Iterator.lxx>



// other Inline functions and methods (like "C++: function call" methods)
//


#endif
