buff-menu.el header line

[Robert J. Chassell]

Today's GNU Emacs CVS snapshot, Thu, 2004 Nov 18  15:43 UTC
GNU Emacs 21.3.50.9 (i686-pc-linux-gnu, GTK+ Version 2.4.13)
started with

    /usr/local/src/emacs/src/emacs -Q

When `Buffer-menu-use-header-line' is nil, the header line generated
by `list-buffers' fails to line up with the underlines.  (The default
is that `Buffer-menu-use-header-line' is t.)

The misalignment can be fixed by deleting the space before the `CRM'
in `list-buffers-noselect' on line 648 of emacs/lisp/buff-menu.el

Change
         (header (concat " " (propertize "CRM " 'face 'fixed-pitch)
to
         (header (concat (propertize "CRM " 'face 'fixed-pitch)

Also, the header line has two different height faces.  The difference
is small, but can be seen.

The `C' of `CRM' uses

    -Adobe-Courier-Medium-R-Normal--17-120-100-100-M-100-ISO8859-1 (0x43)

and the `B' of `Buffer' uses

    -ETL-Fixed-Medium-R-Normal--16-160-72-72-C-80-ISO8859-1 (0x42)

I determined this by commenting out line 674 of
`list-buffers-noselect' in emacs/lisp/buff-menu.el

;;      (put-text-property 1 (point) 'intangible t)
        )

Do others see the same problems as I?  (I don't know for sure whether
the issues result from my display or are general.)

If others see the same problems, then 

 1. I expect no argument over deleting the extraneous white space on
    line 648.

 2. The issue of different sized faces is one of sensitivity and
    practicality.  I do not have any same-sized faces with the same
    looks.  The faces chosen have the closest size.

    The problem does not appear to occur when
    `Buffer-menu-use-header-line' is set to t, the default.  I suspect
    most people use the default.  Perhaps nothing should be done.

 3. There may be more argument about deleting the line providing an
    intangible text property.  I always comment it out because its
    existence means I cannot use `C-n' (next-line) when point is in
    the header.  On the other hand, others may prefer only to use
    `C-f' (forward-char), which leaves the header line and its
    underlining.

-- 
    Robert J. Chassell                         
    address@hidden                         GnuPG Key ID: 004B4AC8
    http://www.rattlesnake.com                  http://www.teak.cc