0028691: Storage of Ocaf documents in XML file format in old document version

[occt.git] / src / XmlMDataStd / XmlMDataStd_TreeNodeDriver.cxx

diff --git a/src/XmlMDataStd/XmlMDataStd_TreeNodeDriver.cxx b/src/XmlMDataStd/XmlMDataStd_TreeNodeDriver.cxx
old mode 100755 (executable)
new mode 100644 (file)
index 8960845..f81b0e5
--- a/src/XmlMDataStd/XmlMDataStd_TreeNodeDriver.cxx
+++ b/src/XmlMDataStd/XmlMDataStd_TreeNodeDriver.cxx
@@ -1,13 +1,30 @@
-// File:        XmlMDataStd_TreeNodeDriver.cxx
-// Created:     Fri Aug 24 20:46:58 2001
-// Author:      Alexnder GRIGORIEV
-// Copyright:   Open Cascade 2001
-// History:
-
-#include <XmlMDataStd_TreeNodeDriver.ixx>
+// Created on: 2001-08-24
+// Created by: Alexnder GRIGORIEV
+// Copyright (c) 2001-2014 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.
+
+
+#include <CDM_MessageDriver.hxx>
+#include <NCollection_LocalArray.hxx>
+#include <Standard_Type.hxx>
 #include <TDataStd_TreeNode.hxx>
+#include <TDF_Attribute.hxx>
+#include <XmlMDataStd_TreeNodeDriver.hxx>
 #include <XmlObjMgt.hxx>
+#include <XmlObjMgt_Persistent.hxx>
+#include <XmlLDrivers.hxx>
 
+IMPLEMENT_STANDARD_RTTIEXT(XmlMDataStd_TreeNodeDriver,XmlMDF_ADriver)
 IMPLEMENT_DOMSTRING (TreeIdString,   "treeid")
 IMPLEMENT_DOMSTRING (ChildrenString, "children")
 
@@ -43,8 +60,12 @@ Standard_Boolean XmlMDataStd_TreeNodeDriver::Paste
   const XmlObjMgt_Element& anElement = theSource;
 
   // tree id
+  Standard_GUID aGUID;
   XmlObjMgt_DOMString aGUIDStr = anElement.getAttribute(::TreeIdString());
-  Standard_GUID aGUID (Standard_CString(aGUIDStr.GetString()));
+  if (aGUIDStr.Type() == XmlObjMgt_DOMString::LDOM_NULL)
+    aGUID = TDataStd_TreeNode::GetDefaultTreeID();
+  else
+    aGUID = Standard_GUID(Standard_CString(aGUIDStr.GetString()));
   aT->SetTreeID(aGUID);
 
   // children
@@ -94,35 +115,45 @@ void XmlMDataStd_TreeNodeDriver::Paste
 {
   Handle(TDataStd_TreeNode) aS = Handle(TDataStd_TreeNode)::DownCast(theSource);
 
-  Standard_Integer aNb;
-
-  TCollection_AsciiString aChildrenStr;
-
   // tree id
-  Standard_Character aGuidStr [40];
-  Standard_PCharacter pGuidStr=aGuidStr;
-  aS->ID().ToCString (pGuidStr);
-  theTarget.Element().setAttribute(::TreeIdString(), aGuidStr);
+  // A not default ID is skipped for storage version 8 and newer.
+  if (aS->ID() != TDataStd_TreeNode::GetDefaultTreeID() ||
+      XmlLDrivers::StorageVersion() < 8)
+  {
+    Standard_Character aGuidStr [40];
+    Standard_PCharacter pGuidStr=aGuidStr;
+    aS->ID().ToCString (pGuidStr);
+    theTarget.Element().setAttribute(::TreeIdString(), aGuidStr);
+  }
 
-  // first child
-  Handle(TDataStd_TreeNode) aF = aS->First();
+  // Find number of children.
+  int nbChildren = aS->NbChildren();
+  
+  // Allocate 11 digits for each ID (an integer) of the child + a space.
+  Standard_Integer iChar = 0;
+  NCollection_LocalArray<Standard_Character> str;
+  if (nbChildren)
+    str.Allocate(11 * nbChildren + 1);
 
   // form the string of numbers for the list of children
+  Handle(TDataStd_TreeNode) aF = aS->First();
   while (!aF.IsNull())
   {
-    aNb = theRelocTable.FindIndex(aF);
+    Standard_Integer aNb = theRelocTable.FindIndex(aF);
     if (aNb == 0)
     {
       aNb = theRelocTable.Add(aF);
     }
-    TCollection_AsciiString aNbStr (aNb);
-    aChildrenStr += aNbStr + " ";
+
+    // Add number to the long string.
+    iChar += Sprintf(&(str[iChar]), "%d ", aNb);
 
     // next child
     aF = aF->Next();
   }
 
-  if (aChildrenStr.Length() > 0)
-    theTarget.Element().setAttribute(::ChildrenString(),
-                                      aChildrenStr.ToCString());
+  if (nbChildren)
+  {
+    theTarget.Element().setAttribute(::ChildrenString(), (Standard_Character*)str);
+  }
 }