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bug#19990: 24.4; Bad resizing interaction when WM ignores size hints
From: |
Jan D. |
Subject: |
bug#19990: 24.4; Bad resizing interaction when WM ignores size hints |
Date: |
Fri, 6 Mar 2015 18:00:14 +0100 |
> 6 mar 2015 kl. 10:21 skrev martin rudalics <rudalics@gmx.at>:
>
> > The window manager can resize the window, for example when you drag on
> > its corners, or when you maximize it. Or it can intercept Emacs
> > resize request and modify it, so it is consistent with size hints. In
> > both cases a ConfigureNotify is sent. Gtk+ does receive it.
>
> In gtk_window_configure_event?
No, in the Gtk+ event handler.
>
> > The
> > problem is that Gtk+ then tries to apply size hints also.
>
> Via gtk_window_move_resize? Which, in principle, is not entirely wrong.
Yes it is. They are called window manager hints for a reason.
> Emacs gets what it asked for. Can't we reset the size hints in between?
> That's what I earlier meant by "interception".
I don't follow.
>
> > Focus events does not contain any information about width/height and
> > can't be taken as a resize request. That would be kind of perverse,
> > focus has nothing to do with resize.
>
> Didn't the OP mention that during a focus event a resize also took
> place? That's what he said:
>
> However, when receiving a FocusIn event (just by cycling focus),
> emacs properly aligns the minibuffer to the bottom, and displays a
> partially-visible line just above the minibuffer (test_after.png).
Emacs must have received a ConfigureNotify to adjust its size. It is possible
the OP missed it.
>
> >> Apparently no such measure is needed for fullheight/-width frames.
> >
> > The bug report that lead to the change mentioned no such problems.
>
> The OP said that:
>
> I force the emacs frame to take the height of the entire screen.
>
> So this looks like a fullheight frame to me without, apparently,
> explicitly specifying it as such.
I meant the bug report that prompted our resetting size hints for fullscreen.
I think he said that he used a tiling window manager, so it is not a fullheight
frame.
>
> > The window manager is what does the fullscreen happen, so it is free
> > to ignore any hints, i.e. hints should not matter, fullscreen takes
> > precedence. But in principle hints during fullscreen may not reflect
> > the "true" state of affairs.
>
> Maybe the OP's problem is that the Window manager conceptually gives
> Emacs the full height of the screen and Gtk+ is not aware of that.
> Maybe also Gtk+ doesn't even understand fullheight. At least I can't
> detect an entry for it in GtkWindowPrivate which OTOH has a 'tiled'
> entry.
It is none of Gtk+ business to know about fullscreen. It is something between
Emacs and the window manager. Gtk+ gets sizes from the X server and the window
manager via ConfigureNotify and should just accept what it gets.
Jan D.
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints, (continued)
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints, Jan D., 2015/03/04
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints, martin rudalics, 2015/03/05
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints, Jan D., 2015/03/05
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints, martin rudalics, 2015/03/05
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints, Jan D., 2015/03/06
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints, martin rudalics, 2015/03/06
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints, Yuri D'Elia, 2015/03/06
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints, Jan D., 2015/03/06
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints, Yuri D'Elia, 2015/03/06
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints, martin rudalics, 2015/03/06
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints,
Jan D. <=
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints, martin rudalics, 2015/03/06
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints, Jan D., 2015/03/07
- bug#19990: 24.4; Bad resizing interaction when WM ignores size hints, martin rudalics, 2015/03/05