comparison layer/Layer.h @ 589:7ebd5a21d74f sonification

Branch to handle audio feedback and metadata sonification interactively with the UI.

Piano keyboard audio feedback:
The midi pitch of a piano keyboard note is retrieved in SpectrogramLayer::processMouseEvent when a left click is made on the note in the Select tool mode (SpectrogramLayer with a log frequency scale). The same process should be applied to the Spectrum layer (log frequency scale) as well.

      * returned value is allocated on the heap and will be deleted by
      * the caller.
      */
     virtual RangeMapper *getNewVerticalZoomRangeMapper() const { return 0; }
 
+    //function to override in Layer subclasses in order to handle mouse events
+    //within the layer (e.g. audio feedback when clicking on the piano keyboard notes
+    //in SpectrogramLayer and SpectrumLayer)
+    virtual void processMouseEvent(const View *, QMouseEvent *, int) {}
+
 public slots:
     void showLayer(View *, bool show);
 
 signals:
     void modelChanged();