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80 lines
2.9 KiB
C++
80 lines
2.9 KiB
C++
// Copyright (c) 2015 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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#include <StdLPersistent_TreeNode.hxx>
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//=======================================================================
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//function : Read
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//purpose : Read persistent data from a file
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//=======================================================================
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void StdLPersistent_TreeNode::Read (StdObjMgt_ReadData& theReadData)
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{
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myDynamicData = new dynamic;
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theReadData >> myDynamicData->First >> myNext >> myDynamicData->TreeID;
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}
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//=======================================================================
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//function : Write
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//purpose : Write persistent data to a file
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//=======================================================================
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void StdLPersistent_TreeNode::Write (StdObjMgt_WriteData& theWriteData) const
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{
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theWriteData << myDynamicData->First << myNext << myDynamicData->TreeID;
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}
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//=======================================================================
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//function : PChildren
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//purpose : Gets persistent child objects
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//=======================================================================
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void StdLPersistent_TreeNode::PChildren
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(StdObjMgt_Persistent::SequenceOfPersistent& theChildren) const
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{
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theChildren.Append(myNext);
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if (!myDynamicData.IsNull())
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theChildren.Append(myDynamicData->First);
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}
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//=======================================================================
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//function : CreateAttribute
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//purpose : Create an empty transient attribute
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//=======================================================================
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Handle(TDF_Attribute) StdLPersistent_TreeNode::CreateAttribute()
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{
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Static::CreateAttribute();
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myTransient->SetTreeID (myDynamicData->TreeID);
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return myTransient;
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}
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//=======================================================================
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//function : ImportAttribute
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//purpose : Import transient attribute from the persistent data
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//=======================================================================
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void StdLPersistent_TreeNode::ImportAttribute()
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{
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if (myDynamicData)
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{
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Handle(StdLPersistent_TreeNode) aChild = myDynamicData->First;
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while (aChild)
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{
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if (aChild->myTransient)
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myTransient->Append(aChild->myTransient);
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StdLPersistent_TreeNode* aCurr = aChild.get();
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aChild = aChild->myNext;
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aCurr->myNext.Nullify(); // this reference is no longer needed
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}
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myDynamicData.Nullify();
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}
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}
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