1 files changed, 11 insertions, 0 deletions
diff --git a/gr-qtgui/include/gnuradio/qtgui/waterfalldisplayform.h b/gr-qtgui/include/gnuradio/qtgui/waterfalldisplayform.h
index 1ac1cf428f..5af2680b8a 100644
--- a/gr-qtgui/include/gnuradio/qtgui/waterfalldisplayform.h
+++ b/gr-qtgui/include/gnuradio/qtgui/waterfalldisplayform.h
@@ -56,6 +56,12 @@ class WaterfallDisplayForm : public DisplayForm
 
   void clearData();
 
+  // returns the frequency that was last double-clicked on by the user
+  float getClickedFreq() const;
+
+  // checks if there was a double-click event; reset if there was
+  bool checkClicked();
+
 public slots:
   void customEvent(QEvent *e);
 
@@ -81,6 +87,7 @@ public slots:
 
 private slots:
   void newData(const QEvent *updateEvent);
+  void onPlotPointSelected(const QPointF p);
 
 private:
   QIntValidator* d_int_validator;
@@ -89,6 +96,10 @@ private:
   int d_fftsize;
   float d_fftavg;
   gr::filter::firdes::win_type d_fftwintype;
+  double d_units;
+
+  bool d_clicked;
+  double d_clicked_freq;
 
   double d_min_val;
   double d_max_val;