Re: The unwarranted scrolling assumption

[Lennart Borgman <lennart.borgman@gmail.com>]

On Mon, Jun 21, 2010 at 7:01 PM, Eli Zaretskii <eliz@gnu.org> wrote:
>> From: Lennart Borgman <lennart.borgman@gmail.com>
>> Date: Mon, 21 Jun 2010 11:31:17 +0200
>> Cc: emacs-devel@gnu.org
>>
>> - The original "jumping scrolling" is still there (this was expected by me).
>
> What exactly is this "jumping scrolling"?  The problem that I'm trying
> to solve is that Emacs recenters the display, i.e. displays the line
> with the cursor in the middle of the window.  If that is not what you
> see, we are talking about two different issues; in that case, please
> describe in more detail what you see.


This is exactly what I mean when I say "jumping scrolling".


>> - The problems around line 702 in window.c (concerning
>> visual-line-mode), which I thought you have tried to address are also
>> still there.
> Maybe I didn't do everything that's needed to reproduce this.  It
> would help if you could find an easier recipe, one that didn't involve
> loading nxhtml, resizing the frame, etc.


If you do not want to test with nxhtml I can try to find another way
and check before sending it, but I do not have time right now.

What is the problem with using nXhtml for the test? You load it with
just one line. (You have to download it to and unzip it.)

Finding a clear example of this situation took me quite some time, but
I believe I understand what is happening. If I am wrong it might be
difficult to find it again if some more changes are mixed in. That is
why I sent you the exact width for the two errors I investigated
there. (I am sure more can go wrong there, but I thought that what I
sent was enough to start digging into it.)


>> Can you please tell me what you think is the best to do now?
>
> I'm trying to reproduce the problem on my machine.  That seems to be
> the only efficient way for me to study this problem.  Please be
> patient.


I understand from Stephen's message that we do indeed work very
differently. I think that is good if we find a way to cooperate.

You say that the only efficient way is for you to reproduce the
problem on your machine. I can understand it is the way you mostly
work and I do that too.

However here I do think I have a piece of information that you can not
discover easily that way. That is why I am trying to communicate my
understanding of the problem to you. I think it could save time
starting there. (But there are surely more problems.)

Maybe you are too involved in other parts of the problem at the moment
to be able to take that communication, but as soon as you can and want
please tell me.