comparison view/ViewManager.h @ 133:9e6b3e239b9d

* Add zoom thumbwheels to Pane.  Implement horizontal thumbwheel, and
  vertical depending on layer type (supported for waveform and spectrogram,
  though wrong for log-scale spectrogram at the moment).
* Add bare bones of a spectrum layer.
* Add window icon
* Add shortcut for "insert time instant" on laptops without keypad enter (";")
* Delete FFT processing thread when it exits (at least, next time we're asked
  for something interesting)
* Get audio file extensions from the file readers, and thus from libsndfile for
  the wave file reader -- leads to rather a wide combo box in file dialog though
* Better refresh order for spectrogram (redraw centre section first)

         AllOverlays
     };
     void setOverlayMode(OverlayMode mode);
     OverlayMode getOverlayMode() const { return m_overlayMode; }
 
+    void setZoomWheelsEnabled(bool enable);
+    bool getZoomWheelsEnabled() const { return m_zoomWheelsEnabled; }
+
 signals:
     /** Emitted when a widget pans.  The originator identifies the widget. */
     void centreFrameChanged(void *originator, unsigned long frame, bool locked);
 
     /** Emitted when a widget zooms.  The originator identifies the widget. */
     void zoomLevelChanged(void *originator, unsigned long zoom, bool locked);
+
+    /** Emitted when a widget zooms. */
+    void zoomLevelChanged();
 
     /** Emitted when the playback frame changes. */
     void playbackFrameChanged(unsigned long frame);
 
     /** Emitted when the output levels change. Values in range 0.0 -> 1.0. */

     /** Emitted when the play selection mode has been changed. */
     void playSelectionModeChanged();
 
     /** Emitted when the overlay mode has been changed. */
     void overlayModeChanged();
+
+    /** Emitted when the zoom wheels have been toggled. */
+    void zoomWheelsEnabledChanged();
 
 protected slots:
     void checkPlayStatus();
     void playStatusChanged(bool playing);
     void considerSeek(void *, unsigned long, bool);

 	MultiSelection m_oldSelection;
 	MultiSelection m_newSelection;
     };
 
     OverlayMode m_overlayMode;
+    bool m_zoomWheelsEnabled;
 };
 
 #endif