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62 lines
1.6 KiB
62 lines
1.6 KiB
15 years ago
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/*
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*
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* $Id: sourceheader,v 1.3 2005/01/19 13:03:46 trueg Exp $
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* Copyright (C) 2005 Sebastian Trueg <trueg@k3b.org>
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*
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* This file is part of the K3b project.
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* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* See the file "COPYING" for the exact licensing terms.
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*/
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#ifndef _K3B_AUDIO_DATA_SOURCE_ITERATOR_H_
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#define _K3B_AUDIO_DATA_SOURCE_ITERATOR_H_
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#include "k3b_export.h"
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class K3bAudioDataSource;
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class K3bAudioTrack;
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class K3bAudioDoc;
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/**
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* This Iterator iterates over the sources in an audio project
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*
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* Be aware that this iterator does not properly update when the doc
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* changes. A manual update can be issued with first(). This is becasue
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* an update would either involve slots (this being a QObject) which is
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* too much overhead or the AudioDoc would need to have knowledge of all
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* the iterators which is also overhead that would be overkill.
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*/
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class LIBK3B_EXPORT K3bAudioDataSourceIterator
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{
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public:
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/**
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* This will place the iterator on the first source just like first() does.
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*/
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explicit K3bAudioDataSourceIterator( K3bAudioDoc* );
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K3bAudioDataSource* current() const;
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bool hasNext() const;
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/**
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* \return the next source or 0 if at end.
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*/
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K3bAudioDataSource* next();
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/**
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* Reset the iterator
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*/
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K3bAudioDataSource* first();
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private:
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K3bAudioDoc* m_doc;
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K3bAudioTrack* m_currentTrack;
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K3bAudioDataSource* m_currentSource;
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};
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#endif
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