change the background color of a single window

change the background color of a single window

[Dieter Wilhelm]

Hi

is it possible to change the background color of a single window?
-- 
    Best wishes

    H. Dieter Wilhelm
    Darmstadt, Germany

Re: change the background color of a single window

[Johan Bockgård]

Dieter Wilhelm <dieter@duenenhof-wilhelm.de> writes:

> is it possible to change the background color of a single window?

No (if you mean the same thing by "window" as Emacs does). There are
no buffer/window local faces (yet[1]). Faces can be frame local
though.

[1] http://lists.gnu.org/archive/html/emacs-devel/2004-05/msg00137.html

-- 
Johan Bockgård

Re: change the background color of a single window

[Dieter Wilhelm]

bojohan+news@dd.chalmers.se (Johan Bockgård) writes:

> Dieter Wilhelm <dieter@duenenhof-wilhelm.de> writes:
>
>> is it possible to change the background color of a single window?
>
> No (if you mean the same thing by "window" as Emacs does). There are

Yes, sometimes I'm precise 8-).

> no buffer/window local faces (yet[1]). Faces can be frame local
> though.

Sigh, thank you anyway, you spared me the hassle to look further.

> [1] http://lists.gnu.org/archive/html/emacs-devel/2004-05/msg00137.html

Thank you Johan for the pointer but it's just a minor gripe for me (I
wanted to show a helper window in the frame with another background to
distinguish the windows better while saving the mode line space); I'll
stay with the stock (CVS) Emacs.

-- 
    Best wishes

    H. Dieter Wilhelm
    Darmstadt, Germany

Re: change the background color of a single window

[Juanma Barranquero]

On 12/19/06, Dieter Wilhelm <dieter@duenenhof-wilhelm.de> wrote:

> (I
> wanted to show a helper window in the frame with another background to
> distinguish the windows better while saving the mode line space);

With a little elisp programming you could try using overlays. You can
use one overlay over the whole buffer, and you could even limit the
overlay to only being visible in a particular window (so other windows
showing the same buffer would not display the overlay's effects).

 (let ((ov (make-overlay (point-min) (point-max) nil nil t)))
   (overlay-put ov 'window (get-buffer-window MY-BUFFER))
   (overlay-put ov 'face MY-BACKGROUND-FACE))

Be sure to have a \n at the end of the last line, and it should work
reasonably enough, I think.

                    /L/e/k/t/u

Re: change the background color of a single window

[Dieter Wilhelm]

"Juanma Barranquero" <lekktu@gmail.com> writes:

> On 12/19/06, Dieter Wilhelm <dieter@duenenhof-wilhelm.de> wrote:
>
>> (I
>> wanted to show a helper window in the frame with another background to
>> distinguish the windows better while saving the mode line space);
>
> With a little elisp programming you could try using overlays. You can
> use one overlay over the whole buffer, and you could even limit the
> overlay to only being visible in a particular window (so other windows
> showing the same buffer would not display the overlay's effects).
>
> (let ((ov (make-overlay (point-min) (point-max) nil nil t)))
>   (overlay-put ov 'window (get-buffer-window MY-BUFFER))
>   (overlay-put ov 'face MY-BACKGROUND-FACE))
>
> Be sure to have a \n at the end of the last line, and it should work
> reasonably enough, I think.
>

Good idea, this might be the way to proceed. I'll try it, thanks.

-- 
    Best wishes

    H. Dieter Wilhelm
    Darmstadt, Germany