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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 <tools/debug.hxx>
#include "listenerbase.hxx"
#include "listeneriter.hxx"
#include "broadcast.hxx"
#include "listener.hxx"
namespace binfilter
{
SvtListenerIter* SvtListenerIter::pListenerIters = 0;
SvtListenerIter::SvtListenerIter( SvtBroadcaster& rBrdcst )
: rRoot( rBrdcst )
{
// hinten einketten!
pNxtIter = 0;
if( pListenerIters )
{
SvtListenerIter* pTmp = pListenerIters;
while( pTmp->pNxtIter )
pTmp = pTmp->pNxtIter;
pTmp->pNxtIter = this;
}
else
pListenerIters = this;
pAkt = rRoot.pRoot;
pDelNext = pAkt;
}
SvtListenerIter::~SvtListenerIter()
{
if( pListenerIters )
{
if( pListenerIters == this )
pListenerIters = pNxtIter;
else
{
SvtListenerIter* pTmp = pListenerIters;
while( pTmp->pNxtIter != this )
if( 0 == ( pTmp = pTmp->pNxtIter ) )
return ;
pTmp->pNxtIter = pNxtIter;
}
}
}
void SvtListenerIter::RemoveListener( SvtListenerBase& rDel,
SvtListenerBase* pNext )
{
// Update the ListenerIter
SvtListenerIter* pTmp = pListenerIters;
while( pTmp )
{
if( pTmp->pAkt == &rDel || pTmp->pDelNext == &rDel )
pTmp->pDelNext = pNext;
pTmp = pTmp->pNxtIter;
}
}
SvtListener* SvtListenerIter::GoNext()
{
if( pDelNext == pAkt )
{
pAkt = pAkt->GetRight();
pDelNext = pAkt;
}
else
pAkt = pDelNext;
return pAkt ? pAkt->GetListener() : 0;
}
SvtListener* SvtListenerIter::GoStart() // zum Anfang des Baums
{
pAkt = rRoot.pRoot;
if( pAkt )
while( pAkt->GetLeft() )
pAkt = pAkt->GetLeft();
pDelNext = pAkt;
return pAkt ? pAkt->GetListener() : 0;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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