MultiTrackReader.h

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/***************************************************************************
      MultiTrackReader.h - reader for multi-track signals
                             -------------------
    begin                : Sat Jun 30 2001
    copyright            : (C) 2001 by Thomas Eschenbacher
    email                : Thomas Eschenbacher <thomas.eschenbacher@gmx.de>

 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef MULTI_TRACK_READER_H
#define MULTI_TRACK_READER_H

#include "config.h"

#include <QtGlobal>
#include <QList>
#include <QObject>

#include "libkwave/MultiTrackSource.h"
#include "libkwave/SampleReader.h"

namespace Kwave
{

    class SignalManager;

    class Q_DECL_EXPORT MultiTrackReader
        :public Kwave::MultiTrackSource<Kwave::SampleReader, false>
    {
        Q_OBJECT
    private:

        MultiTrackReader();

    public:

        MultiTrackReader(Kwave::ReaderMode mode,
                        Kwave::SignalManager &signal_manager,
                        const QList<unsigned int> &track_list,
                        sample_index_t first, sample_index_t last);

        virtual ~MultiTrackReader() Q_DECL_OVERRIDE;

        virtual sample_index_t first() const;

        virtual sample_index_t last() const;

        virtual bool eof() const;

        inline virtual bool isEmpty() const {
            return
                (Kwave::MultiTrackSource<Kwave::SampleReader, false>::tracks() < 1);
        }

        inline bool isCanceled() const { return m_canceled; }

        virtual bool insert(unsigned int track, Kwave::SampleReader *reader)
            Q_DECL_OVERRIDE;

        virtual void skip(sample_index_t count);

        virtual void seek(sample_index_t pos);

    signals:

        void progress(qreal percent);

    public slots:

        void cancel();

        void reset();

    private slots:

        void proceeded();

    protected:

        sample_index_t m_first;

        sample_index_t m_last;

        bool m_canceled;

    };
}

#endif /* MULTI_TRACK_READER_H */

//***************************************************************************
//***************************************************************************