include/opencascade/IFSelect_SelectionIterator.hxx

0001 // Created on: 1992-11-17
0002 // Created by: Christian CAILLET
0003 // Copyright (c) 1992-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _IFSelect_SelectionIterator_HeaderFile
0018 #define _IFSelect_SelectionIterator_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <Standard_Integer.hxx>
0025 #include <IFSelect_HSeqOfSelection.hxx>
0026 #include <IFSelect_TSeqOfSelection.hxx>
0027 class IFSelect_Selection;
0028
0029 //! Defines an Iterator on a list of Selections
0030 class IFSelect_SelectionIterator
0031 {
0032 public:
0033
0034   DEFINE_STANDARD_ALLOC
0035
0036   //! Creates an empty iterator, ready to be filled
0037   Standard_EXPORT IFSelect_SelectionIterator();
0038
0039   //! Creates an iterator from a Selection : it lists the Selections
0040   //! from which <sel> depends (given by its method FillIterator)
0041   Standard_EXPORT IFSelect_SelectionIterator(const Handle(IFSelect_Selection)& sel);
0042
0043   //! Adds to an iterator the content of another one
0044   //! (each selection is present only once in the result)
0045   Standard_EXPORT void AddFromIter (IFSelect_SelectionIterator& iter);
0046
0047   //! Adds a Selection to an iterator (if not yet noted)
0048   Standard_EXPORT void AddItem (const Handle(IFSelect_Selection)& sel);
0049
0050   //! Adds a list of Selections to an iterator (this list comes
0051   //! from the description of a Selection or a Dispatch, etc...)
0052   Standard_EXPORT void AddList (const IFSelect_TSeqOfSelection& list);
0053
0054   //! Returns True if there are more Selections to get
0055   Standard_EXPORT Standard_Boolean More() const;
0056
0057   //! Sets iterator to the next item
0058   Standard_EXPORT void Next();
0059
0060   //! Returns the current Selection being iterated
0061   //! Error if count of Selection has been passed
0062   Standard_EXPORT const Handle(IFSelect_Selection)& Value() const;
0063
0064 private:
0065
0066   Standard_Integer thecurr;
0067   Handle(IFSelect_HSeqOfSelection) thelist;
0068
0069 };
0070
0071 #endif // _IFSelect_SelectionIterator_HeaderFile