From 70b35690d96a1af9799ddf43ab9bd69abca448a1 Mon Sep 17 00:00:00 2001
From: Tom Rondeau <trondeau@vt.edu>
Date: Wed, 16 Sep 2009 10:03:29 -0400
Subject: Handling a few exceptions when no file is loaded.
---
gr-utils/src/python/gr_plot_qt.py | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
(limited to 'gr-utils/src/python/gr_plot_qt.py')
diff --git a/gr-utils/src/python/gr_plot_qt.py b/gr-utils/src/python/gr_plot_qt.py
index 267737fd0c..581dc6d332 100755
--- a/gr-utils/src/python/gr_plot_qt.py
+++ b/gr-utils/src/python/gr_plot_qt.py
@@ -64,9 +64,12 @@ class SpectrogramData(Qwt.QwtRasterData):
return Qwt.QwtDoubleInterval(self.sp.min(), self.sp.max())
def value(self, x, y):
- f = int(self.freq.searchsorted(x))
- t = int(self.time.searchsorted(y))
- return self.sp[f][t-1]
+ try:
+ f = int(self.freq.searchsorted(x))
+ t = int(self.time.searchsorted(y))
+ return self.sp[f][t-1]
+ except AttributeError: # if no file loaded yet
+ return 0
class gr_plot_qt(QtGui.QMainWindow):
@@ -451,7 +454,11 @@ class gr_plot_qt(QtGui.QMainWindow):
# If there's a non-digit character, reset box
else:
- self.set_file_pos_box(self.cur_start, self.cur_stop)
+ try:
+ self.set_file_pos_box(self.cur_start, self.cur_stop)
+ except AttributeError:
+ pass
+
def file_time_changed(self):
tstart = self.gui.fileTimeStartLineEdit.text().toDouble()
--
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