bug#40521: closed (28.0.50; :box attribute in header-line truncates header-line-format text)

[GNU bug Tracking System]

Your message dated Sat, 25 Apr 2020 16:16:28 +0200
with message-id <CADwFkm=address@hidden>
and subject line Re: bug#40521: 28.0.50; :box attribute in header-line 
truncates header-line-format text
has caused the debbugs.gnu.org bug report #40521,
regarding 28.0.50; :box attribute in header-line truncates header-line-format 
text
to be marked as done.

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40521: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=40521
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--- Begin Message --- Subject: 28.0.50; :box attribute in header-line truncates header-line-format text Date: Thu, 9 Apr 2020 14:50:17 +0300

Some days ago I've noticed that my custom header-line for

Treemacs lacks one character for some reason:

I've checked some of my older screenshots and there was nothing

like that, "Treemacs" was fully visible. After a bit of digging I've

figured out that that's the :box attribute causing this.

Minimal recipe:

    emacs -q --eval "(progn (setq header-line-format \"1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16\") (face-remap-add-relative 'header-line :box '(:line-width 20)))"

Emacs should appear with pretty huge header-line at the top. Try to
resize the frame. Notice that amount of dots changes. Without the :box
dots are being truncated by the edge of the window as those should.
With :box it happens somewhere at the middle of the window.

Screenshots:

Without :box all numbers can be seen up to window edge:

In GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.13, cairo version 1.16.0)
 of 2020-04-01 built on toolbox
Repository revision: 953b5b4a6d2b47bd762df4edfc4764b3d518dda9
Repository branch: master
Windowing system distributor 'Fedora Project', version 11.0.12006000
System Description: Fedora 31 (Workstation Edition)

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
funcall-interactively: End of buffer [13 times]

Configured features:
XPM JPEG TIFF GIF PNG RSVG CAIRO SOUND DBUS GSETTINGS GLIB NOTIFY
INOTIFY LIBSELINUX GNUTLS LIBXML2 FREETYPE HARFBUZZ ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM MODULES THREADS JSON PDUMPER LCMS2
GMP

Important settings:
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message rmc puny dired dired-loaddefs
format-spec rfc822 mml easymenu mml-sec password-cache epa derived epg
epg-config gnus-util rmail rmail-loaddefs text-property-search seq
byte-opt gv bytecomp byte-compile cconv mm-decode mm-bodies mm-encode
mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047
rfc2045 ietf-drums mm-util mail-prsvr mail-utils time-date subr-x
cl-loaddefs cl-lib face-remap tooltip eldoc electric uniquify ediff-hook
vc-hooks lisp-float-type mwheel term/x-win x-win term/common-win x-dnd
tool-bar dnd fontset image regexp-opt fringe tabulated-list replace
newcomment text-mode elisp-mode lisp-mode prog-mode register page
tab-bar menu-bar rfn-eshadow isearch timer select scroll-bar mouse
jit-lock font-lock syntax facemenu font-core term/tty-colors frame
minibuffer cl-generic cham georgian utf-8-lang misc-lang vietnamese
tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek
romanian slovak czech european ethiopic indian cyrillic chinese
composite charscript charprop case-table epa-hook jka-cmpr-hook help
simple abbrev obarray cl-preloaded nadvice loaddefs button faces
cus-face macroexp files text-properties overlay sha1 md5 base64 format
env code-pages mule custom widget hashtable-print-readable backquote
threads dbusbind inotify lcms2 dynamic-setting system-font-setting
font-render-setting cairo move-toolbar gtk x-toolkit x multi-tty
make-network-process emacs)

Memory information:
((conses 16 44584 10639)
 (symbols 48 6025 1)
 (strings 32 15561 1892)
 (string-bytes 1 511454)
 (vectors 16 9348)
 (vector-slots 8 126328 9916)
 (floats 8 21 38)
 (intervals 56 186 7)
 (buffers 992 10))

--

Best regards,
Andrey Orst

--- End Message ---

> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#40521: 28.0.50; :box attribute in header-line truncates header-line-format text
>
>
>
>
> Date: 
>
> Sat, 25 Apr 2020 16:16:28 +0200
>
>
>
>
> Eli Zaretskii <address@hidden> writes:
>
> > > I've checked some of my older screenshots and there was nothing
> > > like that, "Treemacs" was fully visible. After a bit of digging I've
> > > figured out that that's the :box attribute causing this.
> > >
> > > Minimal recipe:
> > >
> > >     emacs -q --eval "(progn (setq header-line-format \"1 2 3 4 5 6 7 8 9 10 
> > > 11 12 13 14 15 16\")
> > > (face-remap-add-relative 'header-line :box '(:line-width 20)))"
> > >
> > > Emacs should appear with pretty huge header-line at the top. Try to
> > > resize the frame. Notice that amount of dots changes. Without the :box
> > > dots are being truncated by the edge of the window as those should.
> > > With :box it happens somewhere at the middle of the window.
> >
> > Thanks, I think I fixed that now.
>
> Seems to work now; I can't reproduce it.  Closing the bug.
>
> Best regards,
> Stefan Kangas
>
>
> --- End Message ---