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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include "ring.hxx"
Ring::Ring( Ring *pObj )
{
if( !pObj )
{
pNext = this, pPrev = this;
}
else
{
pNext = pObj;
pPrev = pObj->pPrev;
pObj->pPrev = this;
pPrev->pNext = this;
}
}
Ring::~Ring()
{
pNext->pPrev = pPrev;
pPrev->pNext = pNext;
}
void Ring::MoveTo(Ring *pDestRing)
{
// delete from "old"
pNext->pPrev = pPrev;
pPrev->pNext = pNext;
// insert into "new"
if( pDestRing )
{
pNext = pDestRing;
pPrev = pDestRing->pPrev;
pDestRing->pPrev = this;
pPrev->pNext = this;
}
else
{
pNext = pPrev = this;
}
}
void Ring::MoveRingTo(Ring *pDestRing)
{
// insert the whole ring into DestRing
Ring* pMyPrev = pPrev;
Ring* pDestPrev = pDestRing->pPrev;
pMyPrev->pNext = pDestRing;
pDestPrev->pNext = this;
pDestRing->pPrev = pMyPrev;
pPrev = pDestPrev;
}
sal_uInt32 Ring::numberOf() const
{
sal_uInt32 nRet = 1;
const Ring* pNxt = pNext;
while( pNxt != this )
{
++nRet;
pNxt = pNxt->GetNext();
}
return nRet;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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