statehandler.h

/***************************************************************************
 *   Copyright (C) 2008-2019 by Ilya Kotov                                 *
 *   forkotov02@ya.ru                                                      *
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
 ***************************************************************************/
#ifndef STATEHANDLER_H
#define STATEHANDLER_H
 
#include <QObject>
#include <QMap>
#include <QHash>
#include <QMutex>
#include "abstractengine.h"
#include "audioparameters.h"
#include "qmmp.h"
 
class QMMP_EXPORT StateHandler : public QObject
{
    Q_OBJECT
public:
    StateHandler(QObject *parent = 0);
    ~StateHandler();
    void dispatch(qint64 elapsed, int bitrate);
    void dispatch(const AudioParameters &p);
    void dispatch(qint64 duration);
    bool dispatch(const TrackInfo &info);
    void dispatch(const QHash<QString, QString> &info);
    void dispatch(Qmmp::State state);
    void dispatchBuffer(int percent);
    qint64 elapsed() const;
    qint64 duration() const;
    int bitrate() const;
    AudioParameters audioParameters() const;
    Qmmp::State state() const;
    void sendNextTrackRequest();
    void sendFinished();
    static StateHandler* instance();
 
signals:
    void elapsedChanged(qint64 time);
    void bitrateChanged(int bitrate);
    void audioParametersChanged(const AudioParameters &p);
    void bufferingProgress(int progress);
 
 
private:
    qint64 m_elapsed;
    qint64 m_duration;
    bool m_sendAboutToFinish;
    int m_bitrate;
    static StateHandler* m_instance;
    QMap <Qmmp::MetaData, QString> m_metaData;
    TrackInfo m_info;
    QHash <QString, QString> m_streamInfo;
    Qmmp::State m_state;
    AudioParameters m_audioParameters;
    mutable QMutex m_mutex;
};
 
#endif