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From: Eli Zaretskii <eliz@gnu.org>
To: "Clément Pit--Claudel" <clement.pit@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: Status of multicolor fonts?
Date: Wed, 16 Dec 2015 20:54:42 +0200	[thread overview]
Message-ID: <83twniz0jx.fsf@gnu.org> (raw)
In-Reply-To: <5671ADE8.7020508@gmail.com> (message from Clément Pit--Claudel on Wed, 16 Dec 2015 13:31:04 -0500)

> From: Clément Pit--Claudel <clement.pit@gmail.com>
> Date: Wed, 16 Dec 2015 13:31:04 -0500
> 
> > I'm quite sure you know that Emacs displays character glyphs by 
> > drawing the background and foreground separately, and it sets the 
> > colors of each one according to the attributes of the current face. 
> > How, then, will the full-color image be displayed, if we override
> > the colors it might specify?
> 
> We wouldn't override the colors of the image; we would just display it, without modifications. The background color of the face is still relevant, but the foreground would not be (except for underlines, for example).

I understand the theory, but that's not how the code currently works,
AFAIU.  It will have to be modified to support this.  I also suspect
that some support from the font back-end (a.k.a. "shaping engine")
will be required, perhaps in using special APIs or activating some
special options, in order to get all this working as expected.



  reply	other threads:[~2015-12-16 18:54 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-16 13:40 Status of multicolor fonts? Clément Pit--Claudel
2015-12-16 14:10 ` Eli Zaretskii
2015-12-16 15:54   ` Clément Pit--Claudel
2015-12-16 22:20   ` Clément Pit--Claudel
2015-12-17  2:47     ` Yuri Khan
2015-12-17  3:14       ` Clément Pit--Claudel
2015-12-17 16:11         ` Eli Zaretskii
2015-12-19  9:43         ` Rüdiger Sonderfeld
2016-01-06  3:51     ` YAMAMOTO Mitsuharu
2016-01-06  6:23       ` John Wiegley
2016-04-11 22:34         ` YAMAMOTO Mitsuharu
2016-04-11 23:19           ` John Wiegley
2016-04-11 23:34             ` YAMAMOTO Mitsuharu
2019-04-24  3:45               ` YAMAMOTO Mitsuharu
2019-04-24  6:34                 ` Eli Zaretskii
2019-04-27  8:13                   ` mituharu
2019-04-27  8:45                     ` Eli Zaretskii
2019-05-03  9:59                       ` landing harfbuzz branch (Re: Status of multicolor fonts?) mituharu
2019-05-03 20:56                         ` Alan Third
2019-05-03 21:46                           ` mituharu
2019-05-04  8:54                         ` Eli Zaretskii
2019-05-04 23:42                           ` mituharu
2019-05-05 16:02                             ` Eli Zaretskii
2019-04-24 15:03                 ` Status of multicolor fonts? Stefan Monnier
2015-12-16 14:37 ` Yuri Khan
2015-12-16 15:32   ` Elias Mårtenson
2015-12-16 15:48     ` Eli Zaretskii
2015-12-16 16:03       ` Clément Pit--Claudel
2015-12-16 17:10         ` Eli Zaretskii
2015-12-16 18:22           ` Clément Pit--Claudel
2015-12-16 16:10       ` Elias Mårtenson
2015-12-16 16:41       ` Random832
2015-12-16 16:56         ` David Kastrup
2015-12-17  4:58           ` Richard Stallman
2015-12-17 17:25             ` John Wiegley
2015-12-16 17:17         ` Eli Zaretskii
2015-12-16 18:31           ` Clément Pit--Claudel
2015-12-16 18:54             ` Eli Zaretskii [this message]
2015-12-16 18:31           ` Random832
2015-12-16 16:00   ` Clément Pit--Claudel
2015-12-16 17:08     ` Eli Zaretskii
2015-12-22  0:59   ` David De La Harpe Golden

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