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117 lines
4.1 KiB
C++
117 lines
4.1 KiB
C++
// Created on: 1996-09-25
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// Created by: Christian CAILLET
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// Copyright (c) 1996-1999 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 _IFSelect_SelectExplore_HeaderFile
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#define _IFSelect_SelectExplore_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <Standard_Integer.hxx>
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#include <IFSelect_SelectDeduct.hxx>
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#include <Standard_Boolean.hxx>
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class Interface_EntityIterator;
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class Interface_Graph;
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class Standard_Transient;
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class TCollection_AsciiString;
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class IFSelect_SelectExplore;
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DEFINE_STANDARD_HANDLE(IFSelect_SelectExplore, IFSelect_SelectDeduct)
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//! A SelectExplore determines from an input list of Entities,
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//! a list obtained by a way of exploration. This implies the
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//! possibility of recursive exploration : the output list is
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//! itself reused as input, etc...
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//! Examples : Shared Entities, can be considered at one level
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//! (immediate shared) or more, or max level
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//!
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//! Then, for each input entity, if it is not rejected, it can be
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//! either taken itself, or explored : it then produces a list.
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//! According to a level, either the produced lists or taken
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//! entities give the result (level one), or lists are themselves
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//! considered and for each item, is it taken or explored.
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//!
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//! Remark that rejection is just a safety : normally, an input
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//! entity is, either taken itself, or explored
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//! A maximum level can be specified. Else, the process continues
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//! until all entities have been either taken or rejected
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class IFSelect_SelectExplore : public IFSelect_SelectDeduct
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{
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public:
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//! Returns the required exploring level
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Standard_EXPORT Standard_Integer Level() const;
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//! Returns the list of selected entities. Works by calling the
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//! method Explore on each input entity : it can be rejected,
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//! taken for output, or to explore. If the maximum level has not
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//! yet been attained, or if no max level is specified, entities
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//! to be explored are themselves used as if they were input
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Standard_EXPORT Interface_EntityIterator RootResult (const Interface_Graph& G) const Standard_OVERRIDE;
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//! Analyses and, if required, Explores an entity, as follows :
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//! The explored list starts as empty, it has to be filled by this
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//! method.
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//! If it returns False, <ent> is rejected for result (this is to
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//! be used only as safety)
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//! If it returns True and <explored> remains empty, <ent> is
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//! taken itself for result, not explored
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//! If it returns True and <explored> is not empty, the content
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//! of this list is considered :
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//! If maximum level is attained, it is taken for result
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//! Else (or no max), each of its entity will be itself explored
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Standard_EXPORT virtual Standard_Boolean Explore (const Standard_Integer level, const Handle(Standard_Transient)& ent, const Interface_Graph& G, Interface_EntityIterator& explored) const = 0;
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//! Returns a text saying "(Recursive)" or "(Level nn)" plus
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//! specific criterium returned by ExploreLabel (see below)
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Standard_EXPORT TCollection_AsciiString Label() const Standard_OVERRIDE;
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//! Returns a text defining the way of exploration
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Standard_EXPORT virtual TCollection_AsciiString ExploreLabel() const = 0;
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DEFINE_STANDARD_RTTIEXT(IFSelect_SelectExplore,IFSelect_SelectDeduct)
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protected:
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//! Initializes a SelectExplore : the level must be specified on
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//! starting. 0 means all levels, 1 means level one only, etc...
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Standard_EXPORT IFSelect_SelectExplore(const Standard_Integer level);
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private:
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Standard_Integer thelevel;
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};
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#endif // _IFSelect_SelectExplore_HeaderFile
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