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From: Eli Zaretskii <eliz@gnu.org>
To: Eric Abrahamsen <eric@ericabrahamsen.net>
Cc: 33232@debbugs.gnu.org
Subject: bug#33232: `gnus-summary-line-format' padding doesn’t work in gui when there are multiple-column-width characters
Date: Fri, 02 Nov 2018 08:42:06 +0200	[thread overview]
Message-ID: <838t2cgev5.fsf@gnu.org> (raw)
In-Reply-To: <87lg6cjtr5.fsf@ericabrahamsen.net> (message from Eric Abrahamsen on Thu, 01 Nov 2018 15:52:14 -0700)

> From: Eric Abrahamsen <eric@ericabrahamsen.net>
> Date: Thu, 01 Nov 2018 15:52:14 -0700
> 
> Someone just reported something similar on the org list, that
> `string-width' doesn't return the actual width occupied by the string,
> which you'd think would be the whole point.

string-width does the best job it can, but you cannot hope to get
exact results when using variable-width fonts.  What string-width
returns should be correct on TTY frames, and only an approximation of
GUI frames, when you mix scripts and thus fonts in the same string.

For pixel-level accuracy on display, you must use display 'space' and
'align' properties.





  parent reply	other threads:[~2018-11-02  6:42 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-01 21:58 bug#33232: `gnus-summary-line-format' padding doesn’t work in gui when there are multiple-column-width characters Garreau, Alexandre
2018-11-01 22:52 ` Eric Abrahamsen
2018-11-01 23:26   ` Noam Postavsky
2018-11-01 23:52     ` Eric Abrahamsen
2018-11-02  6:36       ` Eli Zaretskii
2018-11-02 19:15         ` Eric Abrahamsen
2018-11-02  6:43       ` Eli Zaretskii
2018-11-02  6:42   ` Eli Zaretskii [this message]
2019-06-22 13:19 ` Lars Ingebrigtsen

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