Extremely fast scrolling bug - please confirm

[Laurence Tyler]

Hi,

I posted a message a couple of weeks ago about a problem with the scroll repeat rate in LyX 1.2.1, but no-one has replied to it. Please could someone confirm whether this is a general problem or is it somehow specific to my system?

The behaviour I see is that clicking in the scroll bar trough of a long document scrolls down by one window's worth immediately (as it should), but then the delay before starting to repeat the scrolling action is very short, and the repeat rate is very high. Most of the time, I cannot single-click fast enough to avoid the repeat scrolling action. To check this out, open (say) the user guide from the 'Help' menu and click in the trough below the scroll bar. Try different lengths of click.

This problem ALSO applies to some of the other controls, particularly value inputs in the preferences dialog. Trying to change the DPI setting using the single or double 'arrow' buttons is almost impossible on my system as it auto-repeats very quickly in the same way as the scroll bar. The value set zooms up quickly past where I want it to be, even if I am trying to single-click the single arrow button.

I don't know enough about the innards of LyX or Xforms at the moment to be able to see where the problem lies, but my guess is that it's something subtle to do with the event model used by Xforms. I just hope it's not CPU speed dependent! (I use a 1 GHz Celeron system).

Please could someone (or several someones preferably) just try this and post whether or not they see the same problem? If it's a known problem already or if it's fixed in a later version I won't spend any more time trying to track it down. Otherwise, it should get a Bugzilla entry I guess.

For information, my system has:

LyX 1.2.1-1
XForms 0.89-3
RedHat Linux 7.3 + updates
Glibc 2.2.5-40

Thanks folks!

--
Laurence Tyler | Email: [EMAIL PROTECTED]
PhD Researcher (Neural Nets & Robotics) | Web: www.cse.dmu.ac.uk/~lgt
Centre for Computational Intelligence | Tel: +44-(0)116-2078408
De Montfort University, Leicester, UK | Fax: +44-(0)116-2541891