comparison layer/SpectrogramLayer.h @ 77:fd348f36c0d3

* Implement harmonic cursor in spectrogram
* Implement layer export.  This doesn't quite do the right thing for the SV
  XML layer export yet -- it doesn't include layer display information, so
  when imported, it only creates an invisible model.  Could also do with
  fixing CSV file import so as to work correctly for note and text layers.

     virtual const Model *getModel() const { return m_model; }
     virtual void paint(View *v, QPainter &paint, QRect rect) const;
 
     virtual int getVerticalScaleWidth(View *v, QPainter &) const;
     virtual void paintVerticalScale(View *v, QPainter &paint, QRect rect) const;
+
+    virtual bool getCrosshairExtents(View *, QPainter &, QPoint cursorPos,
+                                     std::vector<QRect> &extents) const;
+    virtual void paintCrosshairs(View *, QPainter &, QPoint) const;
 
     virtual QString getFeatureDescription(View *v, QPoint &) const;
 
     virtual bool snapToFeatureFrame(View *v, int &frame,
 				    size_t &resolution,

     int                 m_colourRotation;
     size_t              m_minFrequency;
     size_t              m_maxFrequency;
     ColourScale         m_colourScale;
     ColourScheme        m_colourScheme;
+    QColor              m_crosshairColour;
     FrequencyScale      m_frequencyScale;
     BinDisplay          m_binDisplay;
     bool                m_normalizeColumns;
 
     // At the moment we cache one unsigned char per bin for the