1 // Created by: DAUTRY Philippe
2 // Copyright (c) 1997-1999 Matra Datavision
3 // Copyright (c) 1999-2014 OPEN CASCADE SAS
5 // This file is part of Open CASCADE Technology software library.
7 // This library is free software; you can redistribute it and/or modify it under
8 // the terms of the GNU Lesser General Public License version 2.1 as published
9 // by the Free Software Foundation, with special exception defined in the file
10 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
11 // distribution for complete text of the license and disclaimer of any warranty.
13 // Alternatively, this file may be used under the terms of Open CASCADE
14 // commercial license or contractual agreement.
16 // ----------------------
18 //Version Date Purpose
19 // 0.0 Sep 15 1997 Creation
21 #include <Standard_NoMoreObject.hxx>
22 #include <TDF_Data.hxx>
23 #include <TDocStd_Document.hxx>
24 #include <TDocStd_XLink.hxx>
25 #include <TDocStd_XLinkIterator.hxx>
26 #include <TDocStd_XLinkRoot.hxx>
28 //=======================================================================
29 //function : TDocStd_XLinkIterator
31 //=======================================================================
32 TDocStd_XLinkIterator::TDocStd_XLinkIterator()
37 //=======================================================================
38 //function : TDocStd_XLinkIterator
40 //=======================================================================
42 TDocStd_XLinkIterator::TDocStd_XLinkIterator
43 (const Handle(TDocStd_Document)& DOC)
48 //=======================================================================
49 //function : Initialize
51 //=======================================================================
53 void TDocStd_XLinkIterator::Initialize(const Handle(TDocStd_Document)& DOC)
54 { myValue = NULL; Init(DOC); }
57 //=======================================================================
60 //=======================================================================
62 void TDocStd_XLinkIterator::Next()
64 if (myValue == NULL) throw Standard_NoMoreObject("");
65 else myValue = myValue->Next();
68 //=======================================================================
71 //=======================================================================
73 void TDocStd_XLinkIterator::Init(const Handle(TDocStd_Document)& DOC)
75 Handle(TDocStd_XLinkRoot) xRefRoot;
76 if (DOC->GetData()->Root().FindAttribute(TDocStd_XLinkRoot::GetID(),xRefRoot))
77 myValue = xRefRoot->First();