0026961: Recover possibility to read files in old persistence format

[occt.git] / src / ShapePersistent / ShapePersistent_HSequence.hxx

diff --git a/src/ShapePersistent/ShapePersistent_HSequence.hxx b/src/ShapePersistent/ShapePersistent_HSequence.hxx
new file mode 100644 (file)
index 0000000..ad96e71
--- /dev/null
+++ b/src/ShapePersistent/ShapePersistent_HSequence.hxx
@@ -0,0 +1,75 @@
+// Copyright (c) 2015 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 _ShapePersistent_HSequence_HeaderFile
+#define _ShapePersistent_HSequence_HeaderFile
+
+#include <StdObjMgt_Persistent.hxx>
+#include <StdObject_gp.hxx>
+
+#include <TColgp_HSequenceOfXYZ.hxx>
+#include <TColgp_HSequenceOfPnt.hxx>
+#include <TColgp_HSequenceOfDir.hxx>
+#include <TColgp_HSequenceOfVec.hxx>
+
+
+class ShapePersistent_HSequence
+{
+  template <class SequenceClass>
+  class node : public StdObjMgt_Persistent
+  {
+  public:
+    typedef typename SequenceClass::value_type ItemType;
+
+  public:
+    //! Read persistent data from a file.
+    Standard_EXPORT virtual void Read (StdObjMgt_ReadData& theReadData);
+
+    const Handle(node)& Previuos() const  { return myPreviuos; } 
+    const Handle(node)& Next()     const  { return myNext; } 
+    const ItemType&     Item()     const  { return myItem; }
+
+  private:
+    Reference<node>                myPreviuos;
+    Reference<node>                myNext;
+    StdObject_gp::Object<ItemType> myItem;
+  };
+
+  template <class SequenceClass>
+  class instance : public StdObjMgt_Persistent
+  {
+  public:
+    typedef node<SequenceClass> Node;
+
+  public:
+    //! Read persistent data from a file.
+    Standard_EXPORT virtual void Read (StdObjMgt_ReadData& theReadData);
+
+    //! Import transient object from the persistent data.
+    Standard_EXPORT Handle(SequenceClass) Import() const;
+
+  private:
+    Reference<Node>         myFirst;
+    Reference<Node>         myLast;
+    Value<Standard_Integer> mySize;
+  };
+
+public:
+  typedef instance<TColgp_HSequenceOfXYZ> XYZ;
+  typedef instance<TColgp_HSequenceOfPnt> Pnt;
+  typedef instance<TColgp_HSequenceOfDir> Dir;
+  typedef instance<TColgp_HSequenceOfVec> Vec;
+};
+
+#endif