src/STEPSelections/STEPSelections_SelectGSCurves.cxx

   1 // Created on: 1999-03-22
   2 // Created by: data exchange team
   3 // Copyright (c) 1999-1999 Matra Datavision
   4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
   5 //
   6 // This file is part of Open CASCADE Technology software library.
   7 //
   8 // This library is free software; you can redistribute it and/or modify it under
   9 // the terms of the GNU Lesser General Public License version 2.1 as published
  10 // by the Free Software Foundation, with special exception defined in the file
  11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
  12 // distribution for complete text of the license and disclaimer of any warranty.
  13 //
  14 // Alternatively, this file may be used under the terms of Open CASCADE
  15 // commercial license or contractual agreement.
  16
  17
  18 #include <Interface_EntityIterator.hxx>
  19 #include <Interface_Graph.hxx>
  20 #include <Standard_Transient.hxx>
  21 #include <Standard_Type.hxx>
  22 #include <StepGeom_CompositeCurve.hxx>
  23 #include <StepGeom_CompositeCurveSegment.hxx>
  24 #include <StepGeom_Curve.hxx>
  25 #include <STEPSelections_SelectGSCurves.hxx>
  26 #include <StepShape_GeometricSet.hxx>
  27 #include <TCollection_AsciiString.hxx>
  28
  29 IMPLEMENT_STANDARD_RTTIEXT(STEPSelections_SelectGSCurves,IFSelect_SelectExplore)
  30
  31 static Standard_Integer flag;
  32
  33 STEPSelections_SelectGSCurves::STEPSelections_SelectGSCurves():IFSelect_SelectExplore (-1){ flag = 1;}
  34
  35 Standard_Boolean STEPSelections_SelectGSCurves::Explore(const Standard_Integer /*level*/,
  36                                                        const Handle(Standard_Transient)& start,
  37                                                        const Interface_Graph& G,
  38                                                        Interface_EntityIterator& explored) const
  39 {
  40   if(start.IsNull()) return Standard_False;
  41
  42   if (start->IsKind(STANDARD_TYPE(StepGeom_Curve))) {
  43     if(start->IsKind(STANDARD_TYPE(StepGeom_CompositeCurve))) {
  44       Interface_EntityIterator subs = G.Sharings(start);
  45       Standard_Boolean isInGeomSet = Standard_False;
  46       for (subs.Start(); subs.More()&&!isInGeomSet; subs.Next())
  47         if(subs.Value()->IsKind(STANDARD_TYPE(StepShape_GeometricSet))){
  48           if(flag) {
  49             explored.AddItem (subs.Value());
  50             flag =0;
  51           }
  52           isInGeomSet = Standard_True;
  53         }
  54       if(isInGeomSet) {
  55         Interface_EntityIterator aSubsShareds = G.Shareds(start);
  56         aSubsShareds.Start();
  57         Standard_Boolean isSome = aSubsShareds.More();
  58         for (; aSubsShareds.More(); aSubsShareds.Next())
  59           explored.AddItem (aSubsShareds.Value());
  60         return isSome;
  61       } else
  62         return Standard_False;
  63     } else {
  64       Interface_EntityIterator subs = G.Sharings(start);
  65       for (subs.Start(); subs.More(); subs.Next()) {
  66         if(subs.Value()->IsKind(STANDARD_TYPE(StepShape_GeometricSet))||
  67            subs.Value()->IsKind(STANDARD_TYPE(StepGeom_CompositeCurveSegment)))
  68           return Standard_True;
  69       }
  70     }
  71   }
  72
  73   Interface_EntityIterator subs = G.Shareds(start);
  74   subs.Start();
  75   Standard_Boolean isSome = subs.More();
  76   for (; subs.More(); subs.Next())
  77     explored.AddItem (subs.Value());
  78
  79   return isSome;
  80 }
  81
  82 TCollection_AsciiString STEPSelections_SelectGSCurves::ExploreLabel() const
  83 {
  84   return TCollection_AsciiString ("Curves in GS");
  85 }