From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#56691: outline-minor-mode displays navigation arrow buttons as emojis Date: Sat, 30 Jul 2022 14:44:12 +0300 Message-ID: <83h72y6d0z.fsf@gnu.org> References: <15cd39ee8fe919a8656095fbfa5ae85e@purelymail.com> <83k085lhj1.fsf@gnu.org> <87o7xg5ob9.fsf@gnus.org> <83tu78i9xz.fsf@gnu.org> <875yjo47a8.fsf@gnus.org> <83pmhwi8i7.fsf@gnu.org> <87k0842s4s.fsf@gnus.org> <83o7xgi53z.fsf@gnu.org> <87zggyyiy3.fsf@gnus.org> <874jz1wgzm.fsf@gnus.org> <83sfml8gez.fsf@gnu.org> <87czdom9w6.fsf@gnus.org> <83wnbw6r9o.fsf@gnu.org> <877d3u25t3.fsf@gnus.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="17714"; mail-complaints-to="usenet@ciao.gmane.io" Cc: hello@paulwrankin.com, 56691@debbugs.gnu.org To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Jul 30 13:45:17 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oHkuC-0004PC-QJ for geb-bug-gnu-emacs@m.gmane-mx.org; 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Original-Received: from [87.69.77.57] (port=2726 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oHktH-0001mX-Es; Sat, 30 Jul 2022 07:44:19 -0400 In-Reply-To: <877d3u25t3.fsf@gnus.org> (message from Lars Ingebrigtsen on Sat, 30 Jul 2022 13:33:44 +0200) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:238259 Archived-At: > From: Lars Ingebrigtsen > Cc: hello@paulwrankin.com, 56691@debbugs.gnu.org > Date: Sat, 30 Jul 2022 13:33:44 +0200 > > Eli Zaretskii writes: > > > I think we can currently only do that by looking at the details of the > > build. Currently, color Emoji are supported only by builds with Cairo > > and HarfBuzz on Unix and by macOS builds. > > We don't support colour emojis on Windows? I didn't know that. We don't. The APIs used on Windows to display characters don't support that, and more sophisticated APIs which do can only be called from C++. > Symbola doesn't have support for LARGE ORANGE CIRCLE "🟠", so we could > try that instead. I know, it's brittle, but so is listing all known > colour emoji fonts. Maybe. It doesn't take care of issues raised by Robert, though. > 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? I don't know how to do that. I don't think these aspects of the glyphs are exposed to Emacs, but maybe I'm wrong. > Or alternatively -- query the font whether it has colour glyphs, but > I don't know whether that's easy, either. Anybody know? Not me.