0031918: Application Framework - New binary format for fast reading part of OCAF...
[occt.git] / src / BinTools / BinTools_ShapeReader.hxx
diff --git a/src/BinTools/BinTools_ShapeReader.hxx b/src/BinTools/BinTools_ShapeReader.hxx
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+// Copyright (c) 2021 OPEN CASCADE SAS
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#ifndef _BinTools_ShapeReader_HeaderFile
+#define _BinTools_ShapeReader_HeaderFile
+
+#include <BinTools_ShapeSetBase.hxx>
+#include <BinTools_IStream.hxx>
+#include <NCollection_DataMap.hxx>
+
+class TopLoc_Location;
+class Geom_Curve;
+class Geom2d_Curve;
+class Geom_Surface;
+class Poly_Polygon3D;
+class Poly_PolygonOnTriangulation;
+class Poly_Triangulation;
+
+//! Reads topology from IStream in binary format without grouping of objects by types
+//! and using relative positions in a file as references.
+class BinTools_ShapeReader : public BinTools_ShapeSetBase
+{
+public:
+
+  DEFINE_STANDARD_ALLOC
+  
+  //! Initializes a shape reader.
+  Standard_EXPORT BinTools_ShapeReader();
+  
+  Standard_EXPORT virtual ~BinTools_ShapeReader();
+
+  //! Clears the content of the set.
+  Standard_EXPORT virtual void Clear() Standard_OVERRIDE;
+  
+  //! Reads the shape from stream using previously restored shapes and objects by references.
+  Standard_EXPORT void Read (Standard_IStream& theStream, TopoDS_Shape& theShape) Standard_OVERRIDE;
+
+  //! Reads location from the stream.
+  Standard_EXPORT const TopLoc_Location* ReadLocation (BinTools_IStream& theStream);
+
+private:
+  //! Reads the shape from stream using previously restored shapes and objects by references.
+  TopoDS_Shape ReadShape (BinTools_IStream& theStream);
+  //! Reads curve from the stream.
+  Handle(Geom_Curve) ReadCurve (BinTools_IStream& theStream);
+  //! Reads curve2d from the stream.
+  Handle(Geom2d_Curve) ReadCurve2d (BinTools_IStream& theStream);
+  //! Reads surface from the stream.
+  Handle(Geom_Surface) ReadSurface (BinTools_IStream& theStream);
+  //! Reads ploygon3d from the stream.
+  Handle(Poly_Polygon3D) ReadPolygon3d (BinTools_IStream& theStream);
+  //! Reads polygon on triangulation from the stream.
+  Handle(Poly_PolygonOnTriangulation) ReadPolygon (BinTools_IStream& theStream);
+  //! Reads triangulation from the stream.
+  Handle(Poly_Triangulation) ReadTriangulation (BinTools_IStream& theStream);
+
+  /// position of the shape previously restored
+  NCollection_DataMap<uint64_t, TopoDS_Shape> myShapePos;
+  NCollection_DataMap<uint64_t, TopLoc_Location> myLocationPos;
+  NCollection_DataMap<uint64_t, Handle(Geom_Curve)> myCurvePos;
+  NCollection_DataMap<uint64_t, Handle(Geom2d_Curve)> myCurve2dPos;
+  NCollection_DataMap<uint64_t, Handle(Geom_Surface)> mySurfacePos;
+  NCollection_DataMap<uint64_t, Handle(Poly_Polygon3D)> myPolygon3dPos;
+  NCollection_DataMap<uint64_t, Handle(Poly_PolygonOnTriangulation)> myPolygonPos;
+  NCollection_DataMap<uint64_t, Handle(Poly_Triangulation)> myTriangulationPos;
+};
+
+#endif // _BinTools_ShapeReader_HeaderFile