[Urwid] Scrolling trouble

Andreas Klöckner lists at informa.tiker.net
Wed Dec 3 16:24:03 EST 2008

On Dienstag 02 Dezember 2008, Ian Ward wrote:
> Andreas Klöckner wrote:
> > Hi Ian, all,
> >
> > If you run the attached script with 'python pudb.py pudb.py' and hit 'h',
> > you'll see a help screen that's supposed to be scrollable. For me, it
> > scrolls just a little bit, but doesn't show all the text it's supposed to
> > show.
> >
> > Looks like a ListBox bug...
> >
> > Andreas
> >
> > PS: I'm attaching a bunch of fixes I've made against the hg version. This
> > includes the prior patch.
> Andreas,
> pudb.py looks exactly like something I was hoping to have time to write
> myself.  Would you like me to distribute it with Urwid?

It's far from done. Feel free to distribute it as is, though. If I get some 
time to work more on it, I'll send updates.

> I have had some issues with scrolling long unselectable widgets that I
> haven't fixed yet, this is likely what you're running into.  A simple
> workaround is to break your text into multiple widgets, but the proper
> thing to do is to add a test case to test_urwid.py with a really long
> widget.  There are lots and lots of listbox test cases, but this looks
> like one I missed.

Ok--I'll add that test once I get back to working on pudb. (no ETA, though) Of 
course, don't let that keep you from fixing the bug... :)


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