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122 lines
3.7 KiB
C++
122 lines
3.7 KiB
C++
// Created on: 1992-02-03
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// Created by: Christian CAILLET
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// Copyright (c) 1992-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Interface_EntityIterator_HeaderFile
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#define _Interface_EntityIterator_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <TColStd_HSequenceOfTransient.hxx>
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#include <Standard_Type.hxx>
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#include <Standard_Boolean.hxx>
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#include <Standard_Integer.hxx>
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class Interface_IntVal;
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class Standard_Transient;
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//! Defines an Iterator on Entities.
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//! Allows considering of various criteria
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class Interface_EntityIterator
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Defines an empty iterator (see AddList & AddItem)
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Standard_EXPORT Interface_EntityIterator();
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//! Defines an iterator on a list, directly i.e. without copying it
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Standard_EXPORT Interface_EntityIterator(const Handle(TColStd_HSequenceOfTransient)& list);
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//! Gets a list of entities and adds its to the iteration list
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Standard_EXPORT void AddList (const Handle(TColStd_HSequenceOfTransient)& list);
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//! Adds to the iteration list a defined entity
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Standard_EXPORT void AddItem (const Handle(Standard_Transient)& anentity);
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//! same as AddItem (kept for compatibility)
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Standard_EXPORT void GetOneItem (const Handle(Standard_Transient)& anentity);
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//! Selects entities with are Kind of a given type, keep only
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//! them (is keep is True) or reject only them (if keep is False)
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Standard_EXPORT void SelectType (const Handle(Standard_Type)& atype, const Standard_Boolean keep);
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//! Returns count of entities which will be iterated on
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//! Calls Start if not yet done
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Standard_EXPORT Standard_Integer NbEntities() const;
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//! Returns count of entities of a given type (kind of)
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Standard_EXPORT Standard_Integer NbTyped (const Handle(Standard_Type)& type) const;
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//! Returns the list of entities of a given type (kind of)
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Standard_EXPORT Interface_EntityIterator Typed (const Handle(Standard_Type)& type) const;
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//! Allows re-iteration (useless for the first iteration)
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Standard_EXPORT virtual void Start() const;
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//! Says if there are other entities (vertices) to iterate
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//! the first time, calls Start
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Standard_EXPORT Standard_Boolean More() const;
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//! Sets iteration to the next entity (vertex) to give
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Standard_EXPORT void Next() const;
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//! Returns the current Entity iterated, to be used by Interface
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//! tools
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Standard_EXPORT const Handle(Standard_Transient)& Value() const;
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//! Returns the content of the Iterator, accessed through a Handle
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//! to be used by a frontal-engine logic
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//! Returns an empty Sequence if the Iterator is empty
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//! Calls Start if not yet done
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Standard_EXPORT Handle(TColStd_HSequenceOfTransient) Content() const;
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//! Clears data of iteration
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Standard_EXPORT void Destroy();
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//! Destructor
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Standard_EXPORT virtual ~Interface_EntityIterator();
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protected:
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//! Allows subclasses of EntityIterator to reevaluate an iteration
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Standard_EXPORT void Reset();
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private:
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Handle(Interface_IntVal) thecurr;
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Handle(TColStd_HSequenceOfTransient) thelist;
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};
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#endif // _Interface_EntityIterator_HeaderFile
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