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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 Sonic Visualiser
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5 An audio file viewer and annotation editor.
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6 Centre for Digital Music, Queen Mary, University of London.
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7 This file copyright 2006 Chris Cannam.
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8
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9 This program is free software; you can redistribute it and/or
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10 modify it under the terms of the GNU General Public License as
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11 published by the Free Software Foundation; either version 2 of the
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12 License, or (at your option) any later version. See the file
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13 COPYING included with this distribution for more information.
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14 */
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15
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16 #ifndef _PLAY_PARAMETERS_H_
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17 #define _PLAY_PARAMETERS_H_
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18
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19 #include <QObject>
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20
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21 #include "XmlExportable.h"
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22
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23 class PlayParameters : public QObject, public XmlExportable
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24 {
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25 Q_OBJECT
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26
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27 public:
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28 PlayParameters() : m_playMuted(false), m_playPan(0.0), m_playGain(1.0) { }
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29
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30 virtual bool isPlayMuted() const { return m_playMuted; }
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31 virtual bool isPlayAudible() const { return !m_playMuted; }
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32 virtual float getPlayPan() const { return m_playPan; } // -1.0 -> 1.0
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33 virtual float getPlayGain() const { return m_playGain; }
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34
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35 virtual QString getPlayPluginId() const { return m_playPluginId; }
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36 virtual QString getPlayPluginConfiguration() const { return m_playPluginConfiguration; }
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37
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38 virtual void copyFrom(const PlayParameters *);
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39
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40 virtual void toXml(QTextStream &stream,
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41 QString indent = "",
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42 QString extraAttributes = "") const;
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43
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44 public slots:
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45 virtual void setPlayMuted(bool muted);
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46 virtual void setPlayAudible(bool nonMuted);
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47 virtual void setPlayPan(float pan);
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48 virtual void setPlayGain(float gain);
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49 virtual void setPlayPluginId(QString id);
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50 virtual void setPlayPluginConfiguration(QString configuration);
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51
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52 signals:
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53 void playParametersChanged();
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54 void playMutedChanged(bool);
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55 void playAudibleChanged(bool);
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56 void playPanChanged(float);
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57 void playGainChanged(float);
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58 void playPluginIdChanged(QString);
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59 void playPluginConfigurationChanged(QString);
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60
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61 protected:
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62 bool m_playMuted;
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63 float m_playPan;
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64 float m_playGain;
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65 QString m_playPluginId;
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66 QString m_playPluginConfiguration;
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67
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68 private:
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69 PlayParameters(const PlayParameters &);
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70 PlayParameters &operator=(const PlayParameters &);
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71 };
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72
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73 #endif
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74
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75
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76
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77
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