Re: scrollbar (once more)

[Luc Teirlinck]

Richard Stallman wrote:

       The thumb now covers nearly the entire length of the scrollbar,
       because the inaccessible portion all of a sudden starts "counting".

   I'd call it a bug.  Could you try to figure out what causes it?

Somehow, with the narrowed buffer completely out of view above the
window and point just after the final newline, the computation of the
thumb length seems to count the entire inaccessible portion after point
as "present" in the window.  Apparently, (- (buffer-size) (point))
characters get counted as present in the window.

Does the thumb size of the (native) scrollbar get adjusted in the Lisp
or in the C code?  At first view, I have the impression that it is in
the C code.  (Although I am not sure.)  While I know C, I am not
really familiar with Emacs' C code and while I intend to sooner or
later familiarize myself with it, I do not have the time to start
studying it at present.

Sincerely,

Luc.