Re: Customizable tool bars

[Reiner Steib <reinersteib+gmane@imap.cc>]

On Wed, Mar 01 2006, Katsumi Yamaoka wrote:

> Emacs 21.1, 21.2 and 21.4
>  => 256
> Emacs 22.0.50 and 23.0.0
>  => 16777216
> XEmacs 21.4.19 and 21.5-b25 (using `device-color-cells')
>  => 256
>
> Are 256 colors insufficient to display Gnome icons?

Assuming that those values were correct: Yes, 256 colors (8 bit color
depth) is insufficient.  I didn't count the number of colors in the
icons [1], but 256 colors get exhausted *very* soon.

You can try it with...

X :1 -depth 8 &
twm -display :1 &
xterm -display :1 &
emacs -display :1  &

Set `gmm-tool-bar-style' to 'gnome, start gnus-slave.  Already here
the colors in the icons are reduced AFAICS.

Then start e.g. gv:

Warning: Cannot allocate colormap entry for "AntiqueWhite3"
Warning: Cannot allocate colormap entry for "AntiqueWhite2"
Warning: Cannot allocate colormap entry for "AntiqueWhite4"
Warning: Cannot allocate colormap entry for "gray40"
Warning: Cannot allocate colormap entry for "gray78"
Warning: Cannot allocate colormap entry for "#D3B5B5"

Close gv, start firefox.  You'll see that it uses a private colormap
for it's windows.

BTW, both Emacs 21 and Emacs 22 reported 256 (correct) on the 8-bit
display.  I don't know how to get the correct information for > 8-bit
from Emacs 21.  (I didn't follow the URL given by Romain yet -- I'm
offline).  But even if there is no technical possibility in Emacs 21,
the user can simply customize a single variable `gmm-tool-bar-style'
to get Gnome icons (this was one of the main reasons why I introduced
it).

Bye, Reiner.

[1] Just some approximate values:

etc/images$ grep -h '^".*#[0-9]*",$' *.xpm|sort -k3,3 -u|wc -l
296

etc/images/mail$ grep -h '^".*#[0-9]*",$' *.xpm|sort -k3,3 -u|wc -l
181
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      (o o)
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