+ bool _channel_visible[MAX_AUDIO_CHANNELS];
+ bool _type_visible[AudioPoint::COUNT];
+ /** gain to apply in dB */
+ float _gain;
+ int _smoothing;
+ std::vector<wxColour> _colours;
+
+ void plot_peak (wxGraphicsPath &, int) const;
+ void plot_rms (wxGraphicsPath &, int) const;
+ float y_for_linear (float) const;
+
+ double _db_label_width;
+ int _height;
+ int _y_origin;
+ float _x_scale;
+ float _y_scale;
+
+ wxString _message;
+
+ static const int _minimum;