Qmmp
/usr/src/RPM/BUILD/qmmp-0.11-svn/src/qmmp/volumecontrol_p.h
00001 /***************************************************************************
00002  *   Copyright (C) 2008-2015 by Ilya Kotov                                 *
00003  *   forkotov02@hotmail.ru                                                 *
00004  *                                                                         *
00005  *   This program is free software; you can redistribute it and/or modify  *
00006  *   it under the terms of the GNU General Public License as published by  *
00007  *   the Free Software Foundation; either version 2 of the License, or     *
00008  *   (at your option) any later version.                                   *
00009  *                                                                         *
00010  *   This program is distributed in the hope that it will be useful,       *
00011  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00012  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
00013  *   GNU General Public License for more details.                          *
00014  *                                                                         *
00015  *   You should have received a copy of the GNU General Public License     *
00016  *   along with this program; if not, write to the                         *
00017  *   Free Software Foundation, Inc.,                                       *
00018  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
00019  ***************************************************************************/
00020 #ifndef VOLUMECONTROL_P_H
00021 #define VOLUMECONTROL_P_H
00022 
00023 #include <QObject>
00024 #include "qmmp.h"
00025 #include "volume.h"
00026 #include "buffer.h"
00027 
00028 class QTimer;
00029 class SoftwareVolume;
00030 
00035 class VolumeControl : public QObject
00036 {
00037     Q_OBJECT
00038 public:
00043     VolumeControl(QObject *parent = 0);
00047     ~VolumeControl();
00054     void setVolume(int left, int right);
00058     void changeVolume(int delta);
00063     void setVolume(int volume);
00068     void setBalance(int balance);
00072     int left() const;
00076     int right() const;
00080     int volume() const;
00084     int balance() const;
00085 
00086 
00087 signals:
00093     void volumeChanged(int left, int right);
00098     void volumeChanged(int volume);
00103     void balanceChanged(int balance);
00104 
00105 public slots:
00109     void checkVolume();
00113     void reload();
00114 
00115 private:
00116     int m_left, m_right;
00117     bool m_prev_block;
00118     Volume *m_volume;
00119     QTimer *m_timer;
00120 
00121 };
00126 class SoftwareVolume : public Volume
00127 {
00128 public:
00129     SoftwareVolume();
00130     ~SoftwareVolume();
00131 
00132     void setVolume(const VolumeSettings &v);
00133     VolumeSettings volume() const;
00134     void changeVolume(Buffer *b, int chan);
00135 
00136     static SoftwareVolume *instance();
00137 
00138 private:
00139     int m_left, m_right;
00140     double m_scaleLeft, m_scaleRight;
00141     static SoftwareVolume *m_instance;
00142 };
00143 
00144 #endif
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