1 // Created on: 1993-01-14 2 // Created by: Remi LEQUETTE 3 // Copyright (c) 1993-1999 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 #ifndef _TopTools_ShapeMapHasher_HeaderFile 18 #define _TopTools_ShapeMapHasher_HeaderFile 19 20 #include <Standard.hxx> 21 #include <Standard_DefineAlloc.hxx> 22 #include <Standard_Handle.hxx> 23 24 #include <Standard_Integer.hxx> 25 #include <Standard_Boolean.hxx> 26 class TopoDS_Shape; 27 28 29 //! Hash tool, used for generating maps of shapes in topology. 30 class TopTools_ShapeMapHasher 31 { 32 public: 33 34 DEFINE_STANDARD_ALLOC 35 36 //! Computes a hash code for the given shape, in the range [1, theUpperBound] 37 //! @param theShape the shape which hash code is to be computed 38 //! @param theUpperBound the upper bound of the range a computing hash code must be within 39 //! @return a computed hash code, in the range [1, theUpperBound] 40 static Standard_Integer HashCode (const TopoDS_Shape& theShape, Standard_Integer theUpperBound); 41 42 //! Returns True when the two keys are the same. Two 43 //! same keys must have the same hashcode, the 44 //! contrary is not necessary. 45 static Standard_Boolean IsEqual (const TopoDS_Shape& S1, const TopoDS_Shape& S2); 46 47 48 49 50 protected: 51 52 53 54 55 56 private: 57 58 59 60 61 62 }; 63 64 65 #include <TopTools_ShapeMapHasher.lxx> 66 67 68 69 70 71 #endif // _TopTools_ShapeMapHasher_HeaderFile 72