backend_gtk: don't hide FileChooserDialog; closes matplotlib#1530

efiring · efiring · commit bb6e6a99a7a1 · 2013-05-23T11:27:06.000-10:00
Hiding the FileChooserDialog was pointless, because a
new one is created each time the Save Figure button is
clicked in the Toolbar.  Hiding seems to have prevented
the widget from being destroyed based on refcount, and this
led to heavy access to the recently-used.xbel file with
every subsequent keystroke.
diff --git a/lib/matplotlib/backends/backend_gtk.py b/lib/matplotlib/backends/backend_gtk.py
@@ -1083,7 +1083,6 @@ def get_filename_from_user (self):
             filename = self.get_filename()
             break
 
-        self.hide()
         return filename, self.ext
 
 class DialogLineprops:
