Adds 'double-click to re-center' to usrp_fft.py

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6832 221aa14e-8319-0410-a670-987f0aec2ac5

diff --git a/gr-utils/src/python/usrp_fft.py b/gr-utils/src/python/usrp_fft.py
index 6ffeb1f0304a00bf52c33c16c829ab0aa24dfed8..5aee24fe6e63ad6e1c35fb9e4b09f0b18babc7a4 100755 (executable)
--- a/gr-utils/src/python/usrp_fft.py
+++ b/gr-utils/src/python/usrp_fft.py
@@ -109,7 +109,8 @@ class app_top_block(stdgui2.std_top_block):
         self.connect(self.u, self.scope)
 
         self._build_gui(vbox)
-
+       self._setup_events()
+       
         # set initial values
 
         if options.gain is None:
@@ -254,6 +255,15 @@ class app_top_block(stdgui2.std_top_block):
             self.myform['fs@usb'].set_value(self.u.adc_freq() / self.u.decim_rate())
         return ok
 
+    def _setup_events(self):
+       if not self.options.waterfall and not self.options.oscilloscope:
+           self.scope.win.Bind(wx.EVT_LEFT_DCLICK, self.evt_left_dclick)
+           
+    def evt_left_dclick(self, event):
+       (ux, uy) = self.scope.win.GetXY(event)
+       target_freq = ux/self.scope.win._scale_factor
+       self.set_freq(target_freq)
+       
 def main ():
     app = stdgui2.stdapp(app_top_block, "USRP FFT", nstatus=1)
     app.MainLoop()