6 files changed, 34 insertions, 1 deletions
diff --git a/gr-qtgui/lib/FrequencyDisplayPlot.cc b/gr-qtgui/lib/FrequencyDisplayPlot.cc
index aef975d332..233c786d0a 100644
--- a/gr-qtgui/lib/FrequencyDisplayPlot.cc
+++ b/gr-qtgui/lib/FrequencyDisplayPlot.cc
@@ -97,7 +97,7 @@ FrequencyDisplayPlot::FrequencyDisplayPlot(int nplots, QWidget* parent)
   d_ymax = 10;
   setAxisScaleEngine(QwtPlot::yLeft, new QwtLinearScaleEngine);
   setAxisScale(QwtPlot::yLeft, d_ymin, d_ymax);
-  setAxisTitle(QwtPlot::yLeft, "Power (dB)");
+  setAxisTitle(QwtPlot::yLeft, "Relative Gain (dB)");
 
   QList<QColor> default_colors;
   default_colors << QColor(Qt::blue) << QColor(Qt::red) << QColor(Qt::green)
@@ -600,6 +600,17 @@ FrequencyDisplayPlot::onPickerPointSelected6(const QPointF & p)
 }
 
 void
+FrequencyDisplayPlot::setYLabel(const std::string &label,
+                                const std::string &unit)
+{
+  std::string l = label;
+  if(unit.length() > 0)
+    l += " (" + unit + ")";
+  setAxisTitle(QwtPlot::yLeft, QString(l.c_str()));
+  ((FreqDisplayZoomer*)d_zoomer)->setUnitType(unit);
+}
+
+void
 FrequencyDisplayPlot::setMinFFTColor (QColor c)
 {
   d_min_fft_color = c;
diff --git a/gr-qtgui/lib/freq_sink_c_impl.cc b/gr-qtgui/lib/freq_sink_c_impl.cc
index 7dc0b2cf89..b667ccaee4 100644
--- a/gr-qtgui/lib/freq_sink_c_impl.cc
+++ b/gr-qtgui/lib/freq_sink_c_impl.cc
@@ -266,6 +266,13 @@ namespace gr {
     }
 
     void
+    freq_sink_c_impl::set_y_label(const std::string &label,
+                                  const std::string &unit)
+    {
+        d_main_gui->setYLabel(label, unit);
+    }
+
+    void
     freq_sink_c_impl::set_update_time(double t)
     {
       //convert update time to ticks
diff --git a/gr-qtgui/lib/freq_sink_c_impl.h b/gr-qtgui/lib/freq_sink_c_impl.h
index 8da193bf29..7eec1ba10c 100644
--- a/gr-qtgui/lib/freq_sink_c_impl.h
+++ b/gr-qtgui/lib/freq_sink_c_impl.h
@@ -123,6 +123,7 @@ namespace gr {
       void set_update_time(double t);
 
       void set_title(const std::string &title);
+      void set_y_label(const std::string &label, const std::string &unit);
       void set_line_label(int which, const std::string &label);
       void set_line_color(int which, const std::string &color);
       void set_line_width(int which, int width);
diff --git a/gr-qtgui/lib/freq_sink_f_impl.cc b/gr-qtgui/lib/freq_sink_f_impl.cc
index 5418eca9ec..359854593a 100644
--- a/gr-qtgui/lib/freq_sink_f_impl.cc
+++ b/gr-qtgui/lib/freq_sink_f_impl.cc
@@ -265,6 +265,13 @@ namespace gr {
     }
 
     void
+    freq_sink_f_impl::set_y_label(const std::string &label,
+                                  const std::string &unit)
+    {
+        d_main_gui->setYLabel(label, unit);
+    }
+
+    void
     freq_sink_f_impl::set_update_time(double t)
     {
       //convert update time to ticks
diff --git a/gr-qtgui/lib/freq_sink_f_impl.h b/gr-qtgui/lib/freq_sink_f_impl.h
index 39e5c92eac..e52da7fb94 100644
--- a/gr-qtgui/lib/freq_sink_f_impl.h
+++ b/gr-qtgui/lib/freq_sink_f_impl.h
@@ -122,6 +122,7 @@ namespace gr {
 
       void set_update_time(double t);
       void set_title(const std::string &title);
+      void set_y_label(const std::string &label, const std::string &unit);
       void set_line_label(int which, const std::string &label);
       void set_line_color(int which, const std::string &color);
       void set_line_width(int which, int width);
diff --git a/gr-qtgui/lib/freqdisplayform.cc b/gr-qtgui/lib/freqdisplayform.cc
index a51da3f35d..141df5475c 100644
--- a/gr-qtgui/lib/freqdisplayform.cc
+++ b/gr-qtgui/lib/freqdisplayform.cc
@@ -323,6 +323,12 @@ FreqDisplayForm::setYaxis(double min, double max)
   getPlot()->setYaxis(min, max);
 }
 
+void FreqDisplayForm::setYLabel(const std::string &label,
+                                const std::string &unit)
+{
+  getPlot()->setYLabel(label, unit);
+}
+
 void
 FreqDisplayForm::setYMax(const QString &m)
 {