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23.0.50; tool bar icons disappear


From: Reiner Steib
Subject: 23.0.50; tool bar icons disappear
Date: Sat, 08 Dec 2007 12:56:42 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.50 (gnu/linux)

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

emacs -Q

M-x customize-variable RET savehist-mode RET

==> All tool bar icons disappear.  The tool bar area and thus the
    whole frame shrinks.

,----[ <f1> v tool-bar-map RET ]
| tool-bar-map is a variable defined in `[...]/emacs/lisp/tool-bar.elc'.
| Its value is shown below.
| 
| Documentation:
| Keymap for the tool bar.
| Define this locally to override the global tool bar.
| 
| Value: nil
| Local in buffer *Customize Option: Savehist Mode*; global value is 
| (keymap
|  (new-file menu-item "Visit New File..." find-file
| [...]
`----

,----[ <f1> v tool-bar-mode RET ]
| tool-bar-mode is a variable defined in `[...]/emacs/lisp/tool-bar.elc'.
| Its value is t
| 
| Documentation:
| Non-nil if Tool-Bar mode is enabled.
| See the command `tool-bar-mode' for a description of this minor mode.
| Setting this variable directly does not take effect;
| either customize it (see the info node `Easy Customization')
| or call the function `tool-bar-mode'.
| 
| You can customize this variable.
`----

I'd guess that the following changes might be relevant:

,----[ lisp/ChangeLog ]
| 2007-07-05  Chong Yidong  <address@hidden>
| 
|       * cus-edit.el (custom-commands): New variable.
|       (custom-tool-bar-map): New variable.  Initialize using
|       `custom-commands'.
|       (custom-mode): Use `custom-tool-bar-map'.
|       [...]
`----

Is the following code in `cus-edit.el' correct?  Is this code
evaluated at compile time (when `display-graphic-p' returns nil?)?

--8<---------------cut here---------------start------------->8---
(defvar tool-bar-map)
(defvar custom-tool-bar-map
  (if (display-graphic-p)
      (let ((map (make-sparse-keymap)))
        (mapc
         (lambda (arg)
           (tool-bar-local-item-from-menu
            (nth 1 arg) (nth 4 arg) map custom-mode-map))
         custom-commands)
        map)))
--8<---------------cut here---------------end--------------->8---

[BTW, using `when' would make the code more readable.  Shouldn't the
variable have a doc string?]

,----[ <f1> v custom-tool-bar-map RET ]
| custom-tool-bar-map is a variable defined in `[...]/emacs/lisp/cus-edit.elc'.
| Its value is nil
| 
| Documentation:
| Not documented as a variable.
`----

The problem doesn't exist neither in Emacs 22.1 nor in EMACS_22_BASE.

> In GNU Emacs 23.0.50.7 (i686-pc-linux-gnu, GTK+ Version 2.10.6)
>  of 2007-12-08 on viandante
> Windowing system distributor `The X.Org Foundation', version 11.0.70199902
> configured using `configure '--prefix=/import/xtra/emacs/HEAD'
>   '--with-gtk' '--exec-prefix=/import/xtra/emacs/HEAD-i686'
>   'CFLAGS=-Wno-pointer-sign -O0 -fno-crossjumping -gdwarf-2 -g3''

> 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.UTF-8
>   locale-coding-system: utf-8
>   default-enable-multibyte-characters: t

> Major mode: Custom

> Minor modes in effect:
>   tooltip-mode: t
>   tool-bar-mode: t
>   mouse-wheel-mode: t
>   menu-bar-mode: t
>   file-name-shadow-mode: t
>   global-font-lock-mode: t
>   font-lock-mode: t
>   blink-cursor-mode: t
>   unify-8859-on-encoding-mode: t
>   utf-translate-cjk-mode: t
>   auto-compression-mode: t
>   line-number-mode: t

> Recent input:
> M-x c u s t o m i z w <backspace> e - v a r i a b e 
> l <backspace> <backspace> l e <return> s a v e h i 
> s t - m o d e <return> <f1> v t o o l 0 <backspace> 
> - b a r - m a <tab> <return> C-x 2 <f1> v t o o l - 
> b a r - m o d e <return> <help-echo> <help-echo> <down-mouse-2> 
> <mouse-2> M-x r e p o <tab> r <tab> <return>

> Recent messages:
> For information about GNU Emacs and the GNU system, type C-h C-a.
> Creating customization items...
> Loading savehist...done
> Creating customization items ...done
> Resetting customization items...done
> Creating customization setup...done
> Type C-x 1 to delete the help window, C-M-v to scroll help.
> Making completion list...

Bye, Reiner.
-- 
       ,,,
      (o o)
---ooO-(_)-Ooo---  |  PGP key available  |  http://rsteib.home.pages.de/





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