Check buffer is non-empty before peeking

2009-11-16 21:01:03 +00:00 · 2009-11-16 21:01:03 +00:00 · e9721c7800
parent 6735e09903
commit e9721c7800
1 changed files with 1 additions and 1 deletions
--- a/tools/rxtools/src/rxtools/rxplot.py
+++ b/tools/rxtools/src/rxtools/rxplot.py
@ -332,7 +332,7 @@ class RxPlotFrame(wx.Frame):
                plot_datax.extend(datax)
                plot_datay.extend(datay)

-                if self.buffer_size > 0:
+                if len(plot_datax) > 0 and self.buffer_size > 0:
                    xcutoff = plot_datax[-1] - self.buffer_size
                    while len(plot_datax) > 0 and plot_datax[0] < xcutoff:
                        plot_datax.popleft()