comparison base/PlayParameters.h @ 29:8460b3bf8f04

* Implement play mute, level and pan controls and a layer visibility control
* Handle swapping the buffers in AudioCallbackPlaySource more gracefully, so
  that in many cases it can be done inaudibly.  Still gets it wrong when
  playing in a noncontiguous selection.
* Fix to SV file save for non-2d sparse models
* Fixes to LED button drawing and AudioDial mouse functionality
* Add progress bar for Ogg file import
* Reshuffle PropertyContainer and its subclasses so it can be a QObject
* Add layer dormancy (invisible layer permitted to free its cache space)
* Optimisations to SpectrogramLayer, removing locks when reading/writing
  individual pixels in the cache (should be unnecessary there) -- there's
  still an issue here as we need a lock when reading from the model in
  case the model is replaced, and we don't currently have one
* Several munlock() calls to make it harder to exhaust real memory if
  running in an RT mode with mlockall() active

 #ifndef _PLAY_PARAMETERS_H_
 #define _PLAY_PARAMETERS_H_
 
 #include <QObject>
 
-class PlayParameters : virtual public QObject
+class PlayParameters : public QObject
 {
     Q_OBJECT
 
 public:
     PlayParameters() : m_playMuted(false), m_playPan(0.0), m_playGain(1.0) { }
 
     virtual bool isPlayMuted() const { return m_playMuted; }
-    virtual void setPlayMuted(bool muted);
-    
     virtual float getPlayPan() const { return m_playPan; } // -1.0 -> 1.0
-    virtual void setPlayPan(float pan);
-    
     virtual float getPlayGain() const { return m_playGain; }
-    virtual void setPlayGain(float gain);
 
 signals:
     void playParametersChanged();
+    void playMutedChanged(bool);
+    void playPanChanged(float);
+    void playGainChanged(float);
+
+public slots:
+    virtual void setPlayMuted(bool muted);
+    virtual void setPlayAudible(bool nonMuted);
+    virtual void setPlayPan(float pan);
+    virtual void setPlayGain(float gain);
 
 protected:
     bool m_playMuted;
     float m_playPan;
     float m_playGain;