// 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 _Interface_EntityIterator_HeaderFile
#define _Interface_EntityIterator_HeaderFile

#ifndef _Handle_Interface_IntVal_HeaderFile
#include <Handle_Interface_IntVal.hxx>
#endif
#ifndef _Handle_TColStd_HSequenceOfTransient_HeaderFile
#include <Handle_TColStd_HSequenceOfTransient.hxx>
#endif
#ifndef _Handle_Standard_Transient_HeaderFile
#include <Handle_Standard_Transient.hxx>
#endif
#ifndef _Handle_Standard_Type_HeaderFile
#include <Handle_Standard_Type.hxx>
#endif
#ifndef _Standard_Boolean_HeaderFile
#include <Standard_Boolean.hxx>
#endif
#ifndef _Standard_Integer_HeaderFile
#include <Standard_Integer.hxx>
#endif
class Interface_IntVal;
class TColStd_HSequenceOfTransient;
class Standard_NoMoreObject;
class Standard_NoSuchObject;
class Standard_Transient;
class Standard_Type;


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

//! Defines an Iterator on Entities, complying with GraphTools <br>
//!           needs. Allows considering of various criteria <br>
class Interface_EntityIterator  {

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
 // 

//! Defines an empty iterator (see AddList & AddItem) <br>
Standard_EXPORT Interface_EntityIterator();

//! Defines an iterator on a list, directly i.e. without copying it <br>
Standard_EXPORT Interface_EntityIterator(const Handle(TColStd_HSequenceOfTransient)& list);

//! Gets a list of entities and adds its to the iteration list <br>
Standard_EXPORT   void AddList(const Handle(TColStd_HSequenceOfTransient)& list) ;

//! Adds to the iteration list a defined entity <br>
Standard_EXPORT   void AddItem(const Handle(Standard_Transient)& anentity) ;

//! same as AddItem (kept for compatibility) <br>
Standard_EXPORT   void GetOneItem(const Handle(Standard_Transient)& anentity) ;

//! Selects entities with are Kind of a given type,  keep only <br>
//!           them (is keep is True) or reject only them (if keep is False) <br>
Standard_EXPORT   void SelectType(const Handle(Standard_Type)& atype,const Standard_Boolean keep) ;

//! Returns count of entities which will be iterated on <br>
//!           Calls Start if not yet done <br>
Standard_EXPORT   Standard_Integer NbEntities() const;

//! Returns count of entities of a given type (kind of) <br>
Standard_EXPORT   Standard_Integer NbTyped(const Handle(Standard_Type)& type) const;

//! Returns the list of entities of a given type (kind of) <br>
Standard_EXPORT   Interface_EntityIterator Typed(const Handle(Standard_Type)& type) const;

//! Allows re-iteration (useless for the first iteration) <br>
Standard_EXPORT virtual  void Start() const;

//! Says if there are other entities (vertices) to iterate <br>
//!           the first time, calls Start <br>
Standard_EXPORT   Standard_Boolean More() const;

//! Sets iteration to the next entity (vertex) to give <br>
Standard_EXPORT   void Next() const;

//! Returns the current Entity iterated, to be used by Interface <br>
//!           tools or by GraphTools (where Entity is a Vertex) <br>
Standard_EXPORT  const Handle_Standard_Transient& Value() const;

//! Returns the content of the Iterator, accessed through a Handle <br>
//!           to be used by a frontal-engine logic <br>
//!           Returns an empty Sequence if the Iterator is empty <br>
//!           Calls Start if not yet done <br>
Standard_EXPORT   Handle_TColStd_HSequenceOfTransient Content() const;

//! Clears data of iteration <br>
Standard_EXPORT virtual  void Destroy() ;
Standard_EXPORT virtual ~Interface_EntityIterator() { Destroy();}





protected:

 // Methods PROTECTED
 // 

//! Allows subclasses of EntityIterator to reevaluate an iteration <br>
Standard_EXPORT   void Reset() ;


 // Fields PROTECTED
 //


private: 

 // Methods PRIVATE
 // 


 // Fields PRIVATE
 //
Handle_Interface_IntVal thecurr;
Handle_TColStd_HSequenceOfTransient thelist;


};





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


#endif
