comparison widgets/LevelPanWidget.h @ 1203:ff042979331b 3.0-integration

Merge from branch svg, and thus (in some subrepos) from levelpanwidget

 
 public:
     LevelPanWidget(QWidget *parent = 0);
     ~LevelPanWidget();
     
-    /// Return level as a gain value in the range [0,1]
+    /// Return level as a gain value. The basic level range is [0,1] but the
+    /// gain scale may go up to 4.0
     float getLevel() const; 
     
     /// Return pan as a value in the range [-1,1]
     float getPan() const;
 

     void renderTo(QPaintDevice *, QRectF, bool asIfEditable) const;
 
     QSize sizeHint() const;
                                                
 public slots:
-    /// Set level in the range [0,1] -- will be rounded
+    /// Set level. The basic level range is [0,1] but the scale may go
+    /// higher. The value will be rounded.
     void setLevel(float);
 
-    /// Set pan in the range [-1,1] -- will be rounded
+    /// Set pan in the range [-1,1]. The value will be rounded
     void setPan(float);
 
+    /// Set left and right peak monitoring levels in the range [0,1]
+    void setMonitoringLevels(float, float);
+    
     /// Specify whether the widget is editable or read-only (default editable)
     void setEditable(bool);
 
     /// Specify whether the level range should include muting or not
     void setIncludeMute(bool);
     
+    // public so it can be called from LevelPanToolButton (ew)
+    virtual void wheelEvent(QWheelEvent *ev);
+    
 signals:
-    void levelChanged(float);
-    void panChanged(float);
+    void levelChanged(float); // range [0,1]
+    void panChanged(float); // range [-1,1]
 
+    void mouseEntered();
+    void mouseLeft();
+    
 protected:
     virtual void mousePressEvent(QMouseEvent *ev);
     virtual void mouseMoveEvent(QMouseEvent *ev);
     virtual void mouseReleaseEvent(QMouseEvent *ev);
-    virtual void wheelEvent(QWheelEvent *ev);
     virtual void paintEvent(QPaintEvent *ev);
+    virtual void enterEvent(QEvent *);
+    virtual void leaveEvent(QEvent *);
 
     void emitLevelChanged();
     void emitPanChanged();
     
     int m_level;
     int m_pan;
+    float m_monitorLeft;
+    float m_monitorRight;
     bool m_editable;
     bool m_includeMute;
 
+    static int audioLevelToLevel(float audioLevel, bool withMute);
+    static float levelToAudioLevel(int level, bool withMute);
+
+    static int audioPanToPan(float audioPan);
+    static float panToAudioPan(int pan);
+    
     QSizeF cellSize(QRectF) const;
     QPointF cellCentre(QRectF, int level, int pan) const;
     QSizeF cellLightSize(QRectF) const;
     QRectF cellLightRect(QRectF, int level, int pan) const;
     double thinLineWidth(QRectF) const;