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// File: XmlMDataStd_TreeNodeDriver.cxx
// Created: Fri Aug 24 20:46:58 2001
// Author: Alexnder GRIGORIEV
// Copyright: Open Cascade 2001
// History:
#include <XmlMDataStd_TreeNodeDriver.ixx>
#include <TDataStd_TreeNode.hxx>
#include <XmlObjMgt.hxx>
IMPLEMENT_DOMSTRING (TreeIdString, "treeid")
IMPLEMENT_DOMSTRING (ChildrenString, "children")
//=======================================================================
//function : XmlMDataStd_TreeNodeDriver
//purpose : Constructor
//=======================================================================
XmlMDataStd_TreeNodeDriver::XmlMDataStd_TreeNodeDriver
(const Handle(CDM_MessageDriver)& theMsgDriver)
: XmlMDF_ADriver (theMsgDriver, NULL)
{}
//=======================================================================
//function : NewEmpty
//purpose :
//=======================================================================
Handle(TDF_Attribute) XmlMDataStd_TreeNodeDriver::NewEmpty() const
{
return (new TDataStd_TreeNode());
}
//=======================================================================
//function : Paste
//purpose :
//=======================================================================
Standard_Boolean XmlMDataStd_TreeNodeDriver::Paste
(const XmlObjMgt_Persistent& theSource,
const Handle(TDF_Attribute)& theTarget,
XmlObjMgt_RRelocationTable& theRelocTable) const
{
Handle(TDataStd_TreeNode) aT = Handle(TDataStd_TreeNode)::DownCast(theTarget);
const XmlObjMgt_Element& anElement = theSource;
// tree id
XmlObjMgt_DOMString aGUIDStr = anElement.getAttribute(::TreeIdString());
Standard_GUID aGUID (Standard_CString(aGUIDStr.GetString()));
aT->SetTreeID(aGUID);
// children
Handle(TDataStd_TreeNode) aTChild;
XmlObjMgt_DOMString aChildrenStr = anElement.getAttribute(::ChildrenString());
if (aChildrenStr != NULL) // void list is allowed
{
Standard_CString aChildren = Standard_CString(aChildrenStr.GetString());
Standard_Integer aNb = 0;
if (!XmlObjMgt::GetInteger(aChildren, aNb)) return Standard_False;
while (aNb > 0)
{
// Find or create TreeNode attribute with the given ID
if (theRelocTable.IsBound(aNb))
{
aTChild = Handle(TDataStd_TreeNode)::DownCast(theRelocTable.Find(aNb));
if (aTChild.IsNull())
return Standard_False;
}
else
{
aTChild = new TDataStd_TreeNode;
theRelocTable.Bind(aNb, aTChild);
}
// Add the child to the current tree
aTChild->SetTreeID(aGUID);
aT->Append(aTChild);
// Get next child ID
if (!XmlObjMgt::GetInteger(aChildren, aNb)) aNb = 0;
}
}
return Standard_True;
}
//=======================================================================
//function : Paste
//purpose :
//=======================================================================
void XmlMDataStd_TreeNodeDriver::Paste
(const Handle(TDF_Attribute)& theSource,
XmlObjMgt_Persistent& theTarget,
XmlObjMgt_SRelocationTable& theRelocTable) const
{
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);
// first child
Handle(TDataStd_TreeNode) aF = aS->First();
// form the string of numbers for the list of children
while (!aF.IsNull())
{
aNb = theRelocTable.FindIndex(aF);
if (aNb == 0)
{
aNb = theRelocTable.Add(aF);
}
TCollection_AsciiString aNbStr (aNb);
aChildrenStr += aNbStr + " ";
// next child
aF = aF->Next();
}
if (aChildrenStr.Length() > 0)
theTarget.Element().setAttribute(::ChildrenString(),
aChildrenStr.ToCString());
}
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