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tdegraphics/kpovmodeler/pmrecursiveobjectiterator.cpp

63 lines
2.0 KiB

/*
**************************************************************************
description
--------------------
copyright : (C) 2000-2001 by Andreas Zehender
email : zehender@kde.org
**************************************************************************
**************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
**************************************************************************/
#include "pmobject.h"
#include "pmrecursiveobjectiterator.h"
PMRecursiveObjectIterator::PMRecursiveObjectIterator( PMObject* obj )
{
m_pObject = obj;
m_pCurrent = obj;
}
PMObject* PMRecursiveObjectIterator::operator++( )
{
if( m_pCurrent )
{
if( m_pCurrent->firstChild( ) )
m_pCurrent = m_pCurrent->firstChild( );
else if( m_pCurrent == m_pObject )
m_pCurrent = 0;
else if( m_pCurrent->nextSibling( ) )
m_pCurrent = m_pCurrent->nextSibling( );
else
{
bool stop = false;
do
{
m_pCurrent = m_pCurrent->parent( );
if( !m_pCurrent )
stop = true;
else if( m_pCurrent == m_pObject )
{
// finished
stop = true;
m_pCurrent = 0;
}
else if( m_pCurrent->nextSibling( ) )
{
m_pCurrent = m_pCurrent->nextSibling( );
stop = true;
}
}
while( !stop );
}
}
return m_pCurrent;
}