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144 lines
4.8 KiB
C++
144 lines
4.8 KiB
C++
// Created on: 2004-11-24
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// Created by: Edward AGAPOV
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// Copyright (c) 2004-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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// The original implementation Copyright: (C) RINA S.p.A
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#include <Message_Messenger.hxx>
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#include <BinObjMgt_Persistent.hxx>
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#include <TDF_Tool.hxx>
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#include <BinTObjDrivers_ObjectDriver.hxx>
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#include <TObj_Assistant.hxx>
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#include <TObj_TObject.hxx>
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#include <TObj_Persistence.hxx>
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IMPLEMENT_STANDARD_RTTIEXT(BinTObjDrivers_ObjectDriver,BinMDF_ADriver)
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//=======================================================================
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//function : BinTObjDrivers_ObjectDriver
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//purpose : constructor
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//=======================================================================
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BinTObjDrivers_ObjectDriver::BinTObjDrivers_ObjectDriver
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(const Handle(Message_Messenger)& theMessageDriver)
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: BinMDF_ADriver( theMessageDriver, NULL)
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{
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}
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//=======================================================================
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//function : NewEmpty
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//purpose : Creates a new attribute
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//=======================================================================
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Handle(TDF_Attribute) BinTObjDrivers_ObjectDriver::NewEmpty() const
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{
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return new TObj_TObject;
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}
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//=======================================================================
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//function : Paste
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//purpose : Translate the contents of <theSource> and put it
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// into <theTarget>.
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//=======================================================================
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Standard_Boolean BinTObjDrivers_ObjectDriver::Paste
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(const BinObjMgt_Persistent& theSource,
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const Handle(TDF_Attribute)& theTarget,
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BinObjMgt_RRelocationTable&) const
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{
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Standard_Integer aSavedPos = theSource.Position();
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// first try to get the type as an integer ID
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Standard_Integer anID;
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if (! (theSource >> anID)) return Standard_False;
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Handle(TObj_Object) anObject;
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if ( (unsigned)anID > 0xffff)
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{
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// if we are here it means that the type was stored as an ascii string,
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// so rewind theSource and reget
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theSource.SetPosition(aSavedPos);
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TCollection_AsciiString aName;
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if (! (theSource >> aName)) return Standard_False;
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anObject =
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TObj_Persistence::CreateNewObject(aName.ToCString(),theTarget->Label());
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if (anObject.IsNull())
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{
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TCollection_AsciiString anEntry;
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TDF_Tool::Entry (theTarget->Label(), anEntry);
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myMessageDriver->Send (TCollection_ExtendedString
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("TObj_TObject retrieval: wrong object type name ") +
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aName + ", entry " + anEntry, Message_Fail);
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TObj_Assistant::BindType(0);
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return Standard_False;
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}
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// register the type
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TObj_Assistant::BindType(anObject->DynamicType());
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}
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else
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{
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// use anID to get the type from earlier registered ones
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Handle(Standard_Type) aType = TObj_Assistant::FindType(anID);
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if(!aType.IsNull())
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anObject =
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TObj_Persistence::CreateNewObject(aType->Name(), theTarget->Label());
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else
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{
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return Standard_False;
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}
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}
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Handle(TObj_TObject)::DownCast (theTarget) ->Set( anObject );
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return Standard_True;
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}
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//=======================================================================
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//function : Paste
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//purpose : Translate the contents of <theSource> and put it
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// into <theTarget>.
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// anObject is stored as a Name of class derived from TObj_Object
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//=======================================================================
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void BinTObjDrivers_ObjectDriver::Paste
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(const Handle(TDF_Attribute)& theSource,
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BinObjMgt_Persistent& theTarget,
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BinObjMgt_SRelocationTable&) const
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{
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Handle(TObj_TObject) aTObj =
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Handle(TObj_TObject)::DownCast( theSource );
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Handle(TObj_Object) anIObject = aTObj->Get();
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if (anIObject.IsNull()) return;
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Handle(Standard_Type) aType = anIObject->DynamicType();
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Standard_Integer anID = TObj_Assistant::FindTypeIndex(anIObject->DynamicType());
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if(anID == 0)
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{
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// we first meet this type;
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// register a type and store a type name as a string
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TObj_Assistant::BindType(aType);
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TCollection_AsciiString aName = aType->Name();
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theTarget << aName;
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}
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else
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{
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// store the integer type ID
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theTarget << anID;
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}
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}
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