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From: Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: Eli Zaretskii <eliz@gnu.org>,
	56691@debbugs.gnu.org, hello@paulwrankin.com
Subject: bug#56691: outline-minor-mode displays navigation arrow buttons as emojis
Date: Sat, 30 Jul 2022 22:12:12 +0800	[thread overview]
Message-ID: <87fsiik7ur.fsf@yahoo.com> (raw)
In-Reply-To: <877d3u25t3.fsf@gnus.org> (Lars Ingebrigtsen's message of "Sat, 30 Jul 2022 13:33:44 +0200")

Lars Ingebrigtsen <larsi@gnus.org> writes:

> The real fix would be to look at the actual glyph data produced, and see
> whether it's colourful or not, wouldn't it?  Is that possible?

Only if the font is already opened, and it's a fairly slow operation
that involves a roundtrip to the X server outside of Cairo.  One of the
Java X servers also supports color fonts, but they seem to be
implemented as an overlay, because if I draw some color glyphs to a
window and then use XGetImage, those glyphs do not show up in the
resulting image, even though they do show up on display.

> Or alternatively -- query the font whether it has colour glyphs, but I
> don't know whether that's easy, either.  Anybody know?

I think FC_COLOR gets you halfway there, but it says nothing about Emoji
specifically.

There is no equivalent on Haiku or NS AFAICT, and on MS Windows we
simply don't support color fonts.





  parent reply	other threads:[~2022-07-30 14:12 UTC|newest]

Thread overview: 86+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-22  4:57 bug#56691: outline-minor-mode displays navigation arrow buttons as emojis Paul W. Rankin via Bug reports for GNU Emacs, the Swiss army knife of text editors
     [not found] ` <handler.56691.B.16584658415826.ack@debbugs.gnu.org>
2022-07-22  5:00   ` Paul W. Rankin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-22  5:04     ` Paul W. Rankin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-22  5:19       ` Paul W. Rankin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-22  6:24       ` Gregory Heytings
2022-07-23  6:32         ` Lars Ingebrigtsen
2022-07-22  7:42     ` Eli Zaretskii
2022-07-23  6:35       ` Lars Ingebrigtsen
2022-07-23  7:07         ` Eli Zaretskii
2022-07-23  7:28           ` Lars Ingebrigtsen
2022-07-23  7:38             ` Eli Zaretskii
2022-07-23  7:41               ` Lars Ingebrigtsen
2022-07-23  8:51                 ` Eli Zaretskii
2022-07-24  9:10                   ` Lars Ingebrigtsen
2022-07-28 12:37                     ` Lars Ingebrigtsen
2022-07-28 14:23                       ` Eli Zaretskii
2022-07-29 11:32                         ` Lars Ingebrigtsen
2022-07-29 12:24                           ` Eli Zaretskii
2022-07-29 12:48                             ` Robert Pluim
2022-07-29 13:35                               ` Eli Zaretskii
2022-07-29 13:38                                 ` Lars Ingebrigtsen
2022-07-29 13:45                                   ` Eli Zaretskii
2022-07-29 13:50                                     ` Lars Ingebrigtsen
2022-07-29 13:48                                   ` Robert Pluim
2022-07-29 13:51                                     ` Eli Zaretskii
2022-07-29 13:47                                 ` Robert Pluim
2022-07-30 11:33                             ` Lars Ingebrigtsen
2022-07-30 11:44                               ` Eli Zaretskii
2022-07-30 14:12                               ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2022-07-30 14:17                                 ` Lars Ingebrigtsen
2022-07-31  0:51                                   ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-31 10:08                                     ` Robert Pluim
2022-07-31 11:45                                       ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-01 10:36                                         ` Lars Ingebrigtsen
2022-08-01 10:42                                           ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-01 10:50                                             ` Lars Ingebrigtsen
2022-08-01 11:40                                             ` Eli Zaretskii
2022-08-01 11:51                                               ` Lars Ingebrigtsen
2022-08-01 12:14                                                 ` Eli Zaretskii
2022-08-01 12:36                                                   ` Lars Ingebrigtsen
2022-08-01 13:12                                                     ` Eli Zaretskii
2022-08-02  9:54                                                       ` Lars Ingebrigtsen
2022-08-02 11:18                                                         ` Eli Zaretskii
2022-08-02 11:20                                                           ` Lars Ingebrigtsen
2022-08-02 11:35                                                             ` Eli Zaretskii
2022-08-02 11:57                                                               ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-02 12:02                                                                 ` Eli Zaretskii
2022-08-02 13:33                                                                   ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-03 11:05                                                                     ` Lars Ingebrigtsen
2022-08-03 11:33                                                                       ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-01 12:16                                               ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-01 13:02                                                 ` Eli Zaretskii
2022-08-01 13:20                                                   ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-01 13:34                                                     ` Eli Zaretskii
2022-08-01 13:47                                                       ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-01 13:53                                                         ` Eli Zaretskii
2022-08-01 14:04                                                           ` Robert Pluim
2022-08-10 11:39                                                             ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-10 11:52                                                               ` Lars Ingebrigtsen
2022-08-10 12:08                                                                 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-12 14:56                                                                   ` Lars Ingebrigtsen
2022-08-13  1:49                                                                     ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-11  4:30                                                               ` Jim Porter
2022-08-11  7:56                                                                 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-12 14:57                                                                 ` Lars Ingebrigtsen
2022-08-13  1:54                                                                   ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-13 11:56                                                                     ` Lars Ingebrigtsen
2022-08-13 12:16                                                                       ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-13 12:24                                                                         ` Lars Ingebrigtsen
2022-08-13 12:39                                                                           ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-13  5:53                                                                   ` Jim Porter
2022-08-13  7:01                                                                     ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-13 11:58                                                                       ` Lars Ingebrigtsen
2022-08-13 12:17                                                                         ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-13 12:25                                                                           ` Lars Ingebrigtsen
2022-08-13 12:34                                                                             ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-13 12:37                                                                               ` Lars Ingebrigtsen
2022-08-13 12:42                                                                                 ` Lars Ingebrigtsen
2022-08-13 11:59                                                                     ` Lars Ingebrigtsen
2022-08-13 12:18                                                                       ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-01 11:38                                           ` Eli Zaretskii
2022-07-23  9:05             ` Visuwesh
2022-07-22  7:05 ` Eli Zaretskii
2022-07-22  7:49 ` Juri Linkov
2022-07-24  4:45 ` bug#56691: reopen Paul W. Rankin via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-24  4:58   ` bug#56691: Better override Paul W. Rankin via Bug reports for GNU Emacs, the Swiss army knife of text editors

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