src/MDataStd/MDataStd_TreeNodeRetrievalDriver.cxx

   1 // File:        MDataStd_TreeNodeRetrievalDriver.cxx
   2 // Created:     Thu Jun 17 12:11:20 1999
   3 // Author:      Vladislav ROMASHKO
   4 //              <vro@flox.nnov.matra-dtv.fr>
   5
   6
   7 #include <MDataStd_TreeNodeRetrievalDriver.ixx>
   8 #include <PDataStd_TreeNode.hxx>
   9 #include <TDataStd_TreeNode.hxx>
  10 #include <Standard_NoSuchObject.hxx>
  11 #include <TDF_Label.hxx>
  12 #include <CDM_MessageDriver.hxx>
  13
  14 MDataStd_TreeNodeRetrievalDriver::MDataStd_TreeNodeRetrievalDriver(const Handle(CDM_MessageDriver)& theMsgDriver):MDF_ARDriver(theMsgDriver)
  15 {}
  16
  17 Standard_Integer MDataStd_TreeNodeRetrievalDriver::VersionNumber() const
  18 { return 0; }
  19
  20 Handle(Standard_Type) MDataStd_TreeNodeRetrievalDriver::SourceType() const
  21 { return STANDARD_TYPE(PDataStd_TreeNode);  }
  22
  23 Handle(TDF_Attribute) MDataStd_TreeNodeRetrievalDriver::NewEmpty() const
  24 { return new TDataStd_TreeNode(); }
  25
  26 void MDataStd_TreeNodeRetrievalDriver::Paste (const Handle(PDF_Attribute)&        Source,
  27                                               const Handle(TDF_Attribute)&        Target,
  28                                               const Handle(MDF_RRelocationTable)& RelocTable) const
  29 {
  30   Handle(PDataStd_TreeNode) S = Handle(PDataStd_TreeNode)::DownCast(Source);
  31   Handle(TDataStd_TreeNode) T = Handle(TDataStd_TreeNode)::DownCast(Target);
  32   T->SetTreeID(S->GetTreeID());
  33
  34    Handle(TDataStd_TreeNode) TFirst;
  35    Handle(PDataStd_TreeNode) PFirst = S->First();
  36    if (!PFirst.IsNull ()) {
  37      if (!RelocTable->HasRelocation(PFirst, TFirst)) {
  38        Standard_NoSuchObject::Raise("MDataStd_TreeNodeRetrievalDriver::Paste");
  39      }
  40      if (!TFirst.IsNull()) {
  41        TFirst->SetTreeID(S->GetTreeID());
  42        T->Append(TFirst);
  43        Handle(PDataStd_TreeNode) PNext = PFirst;
  44        Handle(TDataStd_TreeNode) TNext;
  45        while (!(PNext->Next()).IsNull() ) {
  46          PNext = PNext->Next();
  47          if (!RelocTable->HasRelocation(PNext, TNext)) {
  48            Standard_NoSuchObject::Raise("MDataStd_TreeNodeRetrievalDriver::Paste");
  49          }
  50          if (!TNext.IsNull()) {
  51            TNext->SetTreeID(S->GetTreeID());
  52            T->Append(TNext);
  53          }
  54        }
  55      }
  56    }
  57 }