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calendar-set-mode-line doesn't center STR properly

From: Bertil Askelid
Subject: calendar-set-mode-line doesn't center STR properly
Date: Tue, 4 Jun 2002 13:33:51 -0700

This bug report will be sent to the Free Software Foundation,
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Please write in English, because the Emacs maintainers do not have
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In GNU Emacs 21.2.1 (i386-redhat-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2002-04-08 on porky.devel.redhat.com
configured using `configure  i386-redhat-linux --prefix=/usr --exec-prefix=/usr 
--bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share 
--includedir=/usr/include --libdir=/usr/lib --libexecdir=/usr/libexec 
--localstatedir=/var --sharedstatedir=/usr/com --mandir=/usr/share/man 
--infodir=/usr/share/info --with-gcc --with-pop --with-sound'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.iso885915
  locale-coding-system: iso-latin-9
  default-enable-multibyte-characters: nil

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

   `calendar-set-mode-line' doesn't center the STR properly. It looks
   at `frame-width' to decide the number of padding "-" to use. However,
   it then splits the frame in two horizontal windows. Better to use:

      (defun calendar-set-mode-line (str)
        "Set mode line to STR, centered, surrounded by dashes."
        (setq mode-line-format
              (calendar-string-spread (list str) ?- (/ (frame-width) 2))))

   Best would be to use the actual `window-width', but at the time
   `calendar-set-mode-line' is called it only sees the frame with one

Recent input:
<C-down-mouse-1> <C-mouse-1> M-3 <switch-frame> C-y
C-n C-e <switch-frame> <C-down-mouse-1> <C-mouse-1>
M-3 <switch-frame> C-y C-e <switch-frame> <C-down-mouse-1>
<C-mouse-1> C-a M-" M-w <switch-frame> C-y <f14> M-"
C-y C-z C-c <switch-frame> C-z C-k <switch-frame> <switch-frame>
<switch-frame> <switch-frame> <help-echo> <down-mouse-2>
<mouse-2> y <f14> C-z C-k D y g = y C-z C-k <switch-frame>
<switch-frame> <switch-frame> <switch-frame> C-z C-k
<switch-frame> <switch-frame> C-z RET <switch-frame>
<switch-frame> <switch-frame> <switch-frame> <switch-frame>
<switch-frame> C-a / C-d C-z \ <switch-frame> <switch-frame>
M-x M-p M-p M-p M-p M-p M-p M-p M-p M-p M-p M-p M-p
M-p M-p M-n M-n M-n M-n M-p M-p M-p M-p M-3 C-x x x
C-e <return>

Recent messages:

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