9term

9term

[James]

    Has anyone else noticed scrollbar flicker with 9term?
    
I have!  ;-)

Yes, the scrollbar gets set on each key stroke.  One thing I've been
meaning to do for a while is fix it to only draw it when the scroll
bar _changes_.  Things pile up 'though.

					Matty.

9term

[Byron]

I am looking at putting my own klugey hack in to fix this by caching
the previous value of the scrollbar parameters. I'll send it to you
if I get it working, and you can decide if you want to incorporate
or not.

9term

[Arnold]

I've noticed the flicker. It is only a problem in a new 9term. As the amount
of buffered text grows, the flicker rapidly decreases...

I think somewhat earlier versions of 9term didn't do this, but I never
bothered to complain when it first started happening.

Arnold

9term

[Byron]

Has anyone else noticed scrollbar flicker with 9term?

I haven't looked at the source yet, but I imagine it arises from the
X server actually painting the scrollbar grey and then white one
time for each keystroke.

I don't want to guess at a solution, other than that it could be done
right in 9term by erasing and redrawing a smaller portion of the
scrollbar.

My own window system avoided this problem by having the server do double
buffering -- it gave everything a very smooth feel.

I find the flicker pretty annoying, actually. I'll see what I can do
to fix it, but I thought I'd look around to see what interest there
was for a solution.