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/*
*
* $Id: sourceheader,v 1.3 2005/01/19 13:03:46 trueg Exp $
* Copyright (C) 2005 Sebastian Trueg <trueg@k3b.org>
*
* This file is part of the K3b project.
* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.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.
* See the file "COPYING" for the exact licensing terms.
*/
#include "k3baudiodatasourceiterator.h"
#include "k3baudiodoc.h"
#include "k3baudiotrack.h"
#include "k3baudiodatasource.h"
K3bAudioDataSourceIterator::K3bAudioDataSourceIterator( K3bAudioDoc* doc )
: m_doc( doc )
{
first();
}
K3bAudioDataSource* K3bAudioDataSourceIterator::current() const
{
return m_currentSource;
}
K3bAudioDataSource* K3bAudioDataSourceIterator::next()
{
m_currentSource = m_currentSource->next();
if( !m_currentSource ) {
m_currentTrack = m_currentTrack->next();
if( m_currentTrack )
m_currentSource = m_currentTrack->firstSource();
}
return m_currentSource;
}
bool K3bAudioDataSourceIterator::hasNext() const
{
if( !m_currentSource )
return false;
if( m_currentSource->next() )
return true;
if( m_currentTrack->next() )
return true;
return false;
}
K3bAudioDataSource* K3bAudioDataSourceIterator::first()
{
m_currentTrack = m_doc->firstTrack();
if( m_currentTrack )
m_currentSource = m_currentTrack->firstSource();
else
m_currentSource = 0;
return m_currentSource;
}
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