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bug#9366: Display geometry change hook
From: |
Lars Ingebrigtsen |
Subject: |
bug#9366: Display geometry change hook |
Date: |
Sat, 19 Sep 2020 17:28:48 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
David De La Harpe Golden <david@harpegolden.net> writes:
> Attached is an initial x11-only stab at an implementation that calls
> window-configuration-change-hook when display geometry changes, though
> a separate hook would be another design option.
>
> For ns, Edward also mentioned:
>
> "On GNUStep and Mac OS X, applications can listen for
> NSApplicationDidChangeScreenParametersNotification for this sort of
> thing"
>
> Dunno about w32 as yet, but presumably it has something similar.
This was nine years ago, but this didn't get much attention at the time.
[...]
> +if test "${HAVE_X11}" = "yes"; then
> + if test "${with_xrandr}" != "no"; then
> + PKG_CHECK_MODULES(XRANDR, xrandr > 1.0, HAVE_XRANDR=yes, HAVE_XRANDR=no)
> + if test "${HAVE_XRANDR}" = "yes"; then
> + AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the Xrandr library
> (-lXrandr).])
> + fi
Emacs is now built with xrandr support by default (on the relevant
systems)...
[...]
> +#ifdef HAVE_XRANDR
> + /* xrandr extension may or may not be present on a display =>
> + can't check for it as a constant C "case" arg, hence "if" here */
> + if (dpyinfo->xrandr_present &&
> + (event.type == (dpyinfo->xrandr_event_base + RRScreenChangeNotify)))
> + {
> + /* FIXME: is XRRUpdateConfiguration actually called by the
> toolkit/gtk+?
But looking through the code, it doesn't seem like Emacs has grown this
capability over the years? But I may be looking in the wrong places.
In any case, it sounds useful? I haven't tried applying the patch,
though, so I don't know how much work that would be to bring it up to
date.
Anybody got any opinions here?
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
- bug#9366: Display geometry change hook,
Lars Ingebrigtsen <=
- bug#9366: Display geometry change hook, Eli Zaretskii, 2020/09/19
- bug#9366: Display geometry change hook, martin rudalics, 2020/09/20
- bug#9366: Display geometry change hook, Lars Ingebrigtsen, 2020/09/20
- bug#9366: Display geometry change hook, Eli Zaretskii, 2020/09/20
- bug#9366: Display geometry change hook, martin rudalics, 2020/09/20
- bug#9366: Display geometry change hook, Eli Zaretskii, 2020/09/20
- bug#9366: Display geometry change hook, martin rudalics, 2020/09/21
- bug#9366: Display geometry change hook, Eli Zaretskii, 2020/09/21
- bug#9366: Display geometry change hook, martin rudalics, 2020/09/22
- bug#9366: Display geometry change hook, Eli Zaretskii, 2020/09/22