Martin Vermeer wrote:
On Mon, 2005-11-28 at 10:47 +0100, Helge Hafting wrote:
...
Do you get any irregular scrolling behaviour, or page scrolls that you
"didn't ask for"?
Can you select and scroll with precision, without overshooting and
having to page scroll back?
Testing some more, I see that I often overshoot by one jump, sometimes two.
The problem then is that the jumps are so big - two jumps is a whole page,
while one jump too much is manageable without scrolling back.
If you were a faster human being, do you think you would still get these
overshoots? (What I am asking is, is there a remaining problem in the
software?)
Well, if I were faster, then I wouldn't get them. So slowing things down
would make it easier. But then, making a big selection would take forever.
I guess more delay would make it easier, but at the big price of
slowness when
selecting many pages. Big selections are slow enough as they are already.
Smaller jumps, such as 1/4 or 1/5 of a page would make it easier, even
if the
delay is reduced further to keep the same scrolling speed as now.
Yes... but hard to do within the current paradigm.
So, a distance shorter than 1/2 screen is hard then?
Actually scroll speed
dependence on where you keep the mouse would be best, but not doable in
my understanding without major change.
And a scrolling speed that starts out slow and increase after, say, 4
screenfulls is equally impossible?
(I actually tried to make the 200
ms delay into a variable that could be tuned at runtime, but failed
miserably. Does anyone know if that can be done, and how?)
Seeing where I am in the document is no problem with the current speed,
the problem is more one of reaction time. I have to move the mouse
a little up to stop the scrolling.
Yes, that's by design.
Sure. :-) After recognizing the desired
end of selection, one must stop the scrolling somehow. This takes time,
and overshoot happens. Slowness can fix that, but then fixed-speed
scrolling
will be too slow.
The reason I think a shorter jump would be better, is thatI then get a
chance
to look for the desired end of selection lower down on the screen. Now
I have
to monitor half of the main window - what I am looking for can appear
anywhere in the lower half. Monitoring a big area takes time. If I
could look only at the lowest
part of the main window then I can see what I'm looking for faster - and
thereby
stop the scrolling quicker.
But if speed is the only thing that isn't "very hard" to adjust, feel
free to
slow it down a bit to get 1.4 out. :-)
Helge Hafting
