From: martin rudalics <rudalics@gmx.at>
To: Joe Corneli <holtzermann17@gmail.com>, 19194@debbugs.gnu.org
Subject: bug#19194: 24.4.50; `window-body-width' is not dynamic relative to font size changes
Date: Thu, 27 Nov 2014 10:44:56 +0100 [thread overview]
Message-ID: <5476F298.5000205@gmx.at> (raw)
In-Reply-To: <87h9xm6plp.fsf@gmail.com>
> Adjusting the font size, I would expect that the window's "body width"
> would change -- more characters can be fit into the same amount of
> screen space. Current behaviour does not match this expectation.
>
> M-: (window-body-width) RET [Note result.]
> C-x C--
> M-: (window-body-width) RET [Result is the same.]
>
> The function is described:
>
> "This function returns the width, in columns, of the body of window
> window."
>
> If for some reason the "nominal" number of columns needs to calculated
> with reference to the default font, then there should be another
> function to return the "actual" number of columns.
The doc-string of `text-scale-adjust' is slightly misleading.
(defun text-scale-adjust (inc)
"Adjust the height of the default face by INC.
AFAICT this does not change the height of the default face - it affects
how the display engine calculates the height of text when displaying a
buffer current at the time `text-scale-adjust' was called.
I'm not sure whether we want to define the size of a window in terms of
the buffer displayed in that window. One consequence of such a change
would be that the sum of the total height of two windows might no more
equal the total height of their parent window.
If we did, we'd need a way to conveniently specify a buffer's default
character width/height. Then we should probably redefine a number of
functions like `shrink-window' or `split-window' to work in terms of
that value. And maybe specify a mode to control that behavior.
> ( I note one practical implication of the underlying issue here:
> https://github.com/kiwanami/emacs-calfw/issues/45 )
If you told me how you get the "adjusted font size", I could tell you
how to scale the value returned by `window-body-width' accordingly.
martin
next prev parent reply other threads:[~2014-11-27 9:44 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-26 13:47 bug#19194: 24.4.50; `window-body-width' is not dynamic relative to font size changes Joe Corneli
2014-11-26 15:55 ` Stefan Monnier
2014-11-26 16:34 ` Joe Corneli
2014-11-26 17:06 ` Eli Zaretskii
2014-11-26 16:04 ` Eli Zaretskii
2014-11-27 9:44 ` martin rudalics [this message]
2014-11-27 10:54 ` Joe Corneli
2014-11-27 18:35 ` martin rudalics
2014-11-27 18:52 ` Eli Zaretskii
2014-11-27 19:58 ` martin rudalics
2014-11-27 20:43 ` Eli Zaretskii
2014-11-28 7:29 ` martin rudalics
2014-11-28 8:49 ` Eli Zaretskii
2014-11-28 18:38 ` martin rudalics
2014-11-28 19:20 ` Eli Zaretskii
2014-12-19 19:40 ` Eli Zaretskii
2014-12-20 10:10 ` martin rudalics
2014-12-20 11:52 ` Joe Corneli
2014-12-20 14:49 ` martin rudalics
2014-12-20 16:18 ` Eli Zaretskii
2014-12-20 16:31 ` martin rudalics
2014-12-20 16:47 ` Eli Zaretskii
2014-12-20 17:51 ` martin rudalics
2014-12-20 18:29 ` Eli Zaretskii
2014-11-27 20:23 ` Joe Corneli
2014-11-28 7:27 ` martin rudalics
2014-11-27 16:17 ` Eli Zaretskii
2014-11-27 18:35 ` martin rudalics
2014-11-27 18:46 ` Eli Zaretskii
2014-11-27 19:58 ` martin rudalics
2014-11-27 20:37 ` Eli Zaretskii
2014-11-28 7:27 ` martin rudalics
2014-11-28 8:42 ` Eli Zaretskii
2022-02-10 8:16 ` bug#19194: bug#20022: 24.4.90; window-body-height, window-body-width wrong value after text-scale-adjust Lars Ingebrigtsen
2022-02-10 17:39 ` bug#19194: [External] : " Drew Adams
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