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From: Eli Zaretskii <eliz@is.elta.co.il>
Cc: lektu@terra.es, emacs-devel@gnu.org
Subject: Re: list-colors-display shows only one color
Date: Tue, 12 Feb 2002 13:05:54 +0200 (IST)	[thread overview]
Message-ID: <Pine.SUN.3.91.1020212130253.6065A-100000@is> (raw)
In-Reply-To: <jepu3bm0a7.fsf@suse.de>


On Tue, 12 Feb 2002, Andreas Schwab wrote:

> |> I'm not sure I understand what are you saying.  Are you saying that 256 
> |> is an incorrect value?  On X, x-display-color-cells returns what 
> |> DisplayCells returns, so Emacs isn't ``guilty'' ;-)
> 
> What I want to say is that DisplayCells might not be the right function
> in this context.  But then, I don't know what "default colormap" is
> supposed to mean.

I'm not a great expert on X, but AFAIK a colormap is where X looks up 
the color given its RGB values.  The default colormap is a colormap used 
for an X application unless it sets up its own colormap.

If my interpretation is correct, you cannot have more distinct colors 
than the number of cells in a colormap.

> |> The number of colors you have on a 24-bit display is much larger than 
> |> what rgb.txt shows, but the number of colors that are available in the 
> |> colormap is typically smaller, so 256 doesn't sound very wrong to me.
> 
> Why shouldn't Emacs be able to display all colors as well?

Because some of them will be identical.

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  reply	other threads:[~2002-02-12 11:05 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-02-11 18:12 list-colors-display shows only one color Juanma Barranquero
2002-02-11 19:48 ` Eli Zaretskii
2002-02-11 20:44   ` Andreas Schwab
2002-02-12  5:41     ` Eli Zaretskii
2002-02-12 11:01       ` Andreas Schwab
2002-02-12 11:05         ` Eli Zaretskii [this message]
2002-02-13 15:37     ` Richard Stallman
2002-02-13 16:25       ` Andreas Schwab
2002-02-12  9:00   ` Juanma Barranquero
2002-02-12 12:18     ` Juanma Barranquero
2002-02-13 13:31       ` Andreas Schwab
2002-02-13 14:13         ` Juanma Barranquero
2002-02-13 14:39           ` Andreas Schwab
2002-02-13 15:39       ` Richard Stallman
2002-02-13 17:07         ` Juanma Barranquero

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