Re: 21.1: mh-e folder mode displayed incorrectly

[Gerd Moellmann]

Peter S Galbraith <GalbraithP@dfo-mpo.gc.ca> writes:

> For example, when mh-summary-height is set to 6 or 8 or 10, the
> recenter puts the cursor one line too high (whereas pre-patched
> emacs21.1 would put it one line too low).  So your patches
> overcompensates a little.  Will my font size affect the result?
> Or was that accounted for?  (I'm using 9x15)

The problem is that recenter in 21 really has to work pixel-based
(consider variable-height lines), whereas it was line-based in 20.  To
get the same results in 21 compared to 20 is not really easy because
of this difference.

Could you please try, in the patch I sent you to increase/decrease
the right side of the comparison in

          /* This is heuristic.  In a window that's 3 lines high, with
             a line height of 13 pixels each, recentering with point
             on the bottom line will try to move -39/2 = 19 pixels
             backward.  Try to avoid moving into the first line.  */
          && it->current_y - target_y > line_height / 2

and see what a good value is?