0022769: Optimization of sewing algorithm

src/BRepBuilderAPI/BRepBuilderAPI_BndBoxTreeSelector.hxx

@@ -0,0 +1,77 @@
+// File:        BRepBuilderAPI_BndBoxTreeSelector.hxx
+// Created:     Nov 29 17:47:12 2011
+// Author:      ANNA MASALSKAYA
+// Copyright:   Open CASCADE SAS 2011
+
+#ifndef _BRepBuilderAPI_BndBoxTreeSelector_Header
+#define _BRepBuilderAPI_BndBoxTreeSelector_Header
+
+#ifndef _TColStd_ListOfInteger_HeaderFile
+#include <TColStd_ListOfInteger.hxx>
+#endif
+#ifndef _Bnd_Box_HeaderFile
+#include <Bnd_Box.hxx>
+#endif
+#ifndef NCollection_UBTree_HeaderFile
+#include <NCollection_UBTree.hxx>
+#endif
+
+typedef NCollection_UBTree <Standard_Integer, Bnd_Box> BRepBuilderAPI_BndBoxTree;
+
+//=======================================================================
+//! Class BRepBuilderAPI_BndBoxTreeSelector 
+//!   derived from UBTree::Selector
+//!   This class is used to select overlapping boxes, stored in 
+//!   NCollection::UBTree; contains methods to maintain the selection
+//!   condition and to retrieve selected objects after search.
+//=======================================================================
+
+class BRepBuilderAPI_BndBoxTreeSelector : public BRepBuilderAPI_BndBoxTree::Selector
+{
+public:
+  //! Constructor; calls the base class constructor
+  BRepBuilderAPI_BndBoxTreeSelector() : BRepBuilderAPI_BndBoxTree::Selector() {}
+
+  //! Implementation of rejection method
+  //! @return
+  //!   True if the bounding box does not intersect with the current 
+  Standard_Boolean Reject (const Bnd_Box& theBox) const
+  {
+    return (myBox.IsOut (theBox));
+  }
+
+  //! Implementation of acceptance method
+  //!   This method is called when the bounding box intersect with the current.
+  //!   It stores the object - the index of box in the list of accepted objects.
+  //! @return
+  //!   True, because the object is accepted
+  Standard_Boolean Accept (const Standard_Integer& theObj)
+  {
+    myResInd.Append (theObj);
+    return Standard_True;
+  }
+
+  //! Clear the list of intersecting boxes
+  void ClearResList()
+  {
+    myResInd.Clear();
+  }
+
+  //! Set current box to search for overlapping with him
+  void SetCurrent (const Bnd_Box& theBox) 
+  { 
+    myBox = theBox;
+  }
+
+  //! Get list of indexes of boxes intersecting with the current box
+  const TColStd_ListOfInteger& ResInd()
+  {
+    return myResInd;
+  }
+
+private:
+  TColStd_ListOfInteger myResInd;
+  Bnd_Box myBox;
+};
+
+#endif