From: Eli Zaretskii <eliz@gnu.org>
To: Julius Pfrommer <julius.pfrommer@web.de>
Cc: emacs-devel@gnu.org
Subject: Re: Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY)
Date: Sun, 17 May 2020 21:45:50 +0300 [thread overview]
Message-ID: <831rnibdsx.fsf@gnu.org> (raw)
In-Reply-To: <20200517202802.00006646@web.de> (message from Julius Pfrommer on Sun, 17 May 2020 20:28:02 +0200)
> Date: Sun, 17 May 2020 20:28:02 +0200
> From: Julius Pfrommer <julius.pfrommer@web.de>
> Cc: emacs-devel@gnu.org
>
> Cairo is a vector-drawing library and only responsible for the "glass"
> of each frame (called the "canvas" in other communities). All the
> event-handling logic, menu-drawing, etc. is untouched by it.
Which is what I said. So Cairo alone will be unable to provide all
the GUI features we need, we will need something else. And that
something is done different on different platforms.
> Looking at xterm.c, it is littered with #ifdef USE_CAIRO.
Yes, because Cairo and Xlib are two quite different ways of doing GUI
display.
> A first step could be to assume Cairo on X-based platforms and remove
> duplicate code.
We are going there, but it takes time. We've just made Cairo the
default build on master; it couldn't be that previously because the
Cairo code had several grave bugs which took us time to fix.
> The second step could be to decouple the "glass" from
> the tookit "chrome" more thoroughly in xterm.c. That is easier to do
> when a Cairo-canvas can be assumed for drawing.
>
> Then, that entire "glass" could be reused by other platforms once they
> have a Cairo-canvas for drawing as well. (Modulo the XWidget support
> that depends on GTK.)
>
> Once a switchover is in reach, it can live separately to the existing
> platform-specific "glass" until all the kinks are worked out.
Sounds like a good plan for several years, maybe more, of extensive
development on several platforms. Can I interest you in doing this?
And meanwhile, we also need to come up with enough new features every
2 - 3 years to keep our users engaged and attract new ones.
next prev parent reply other threads:[~2020-05-17 18:45 UTC|newest]
Thread overview: 145+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-17 10:41 Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY) Julius Pfrommer
2020-05-17 14:09 ` Arthur Miller
2020-05-17 14:30 ` Eli Zaretskii
2020-05-17 15:06 ` Arthur Miller
2020-05-17 15:56 ` Eli Zaretskii
2020-05-17 16:50 ` Arthur Miller
2020-05-17 17:06 ` Eli Zaretskii
2020-05-17 14:35 ` Eli Zaretskii
2020-05-17 14:59 ` Julius Pfrommer
2020-05-17 15:55 ` Eli Zaretskii
2020-05-17 16:28 ` Pip Cet
2020-05-17 17:00 ` Eli Zaretskii
2020-05-17 18:50 ` Pip Cet
2020-05-17 19:17 ` Eli Zaretskii
2020-05-18 16:08 ` Ligatures (was: Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY)) Eli Zaretskii
2020-05-18 16:45 ` tomas
2020-05-18 16:49 ` Eli Zaretskii
2020-05-18 17:05 ` Ligatures Stefan Monnier
2020-05-18 17:18 ` Ligatures Eli Zaretskii
2020-05-18 19:19 ` Ligatures Pip Cet
2020-05-18 19:25 ` Ligatures tomas
2020-05-18 19:41 ` Ligatures Pip Cet
2020-05-18 20:20 ` Ligatures tomas
2020-05-18 19:33 ` Ligatures Eli Zaretskii
2020-05-18 19:44 ` Ligatures Clément Pit-Claudel
2020-05-19 2:25 ` Ligatures Eli Zaretskii
2020-05-19 2:44 ` Ligatures Clément Pit-Claudel
2020-05-19 13:59 ` Ligatures Eli Zaretskii
2020-05-19 14:35 ` Ligatures Clément Pit-Claudel
2020-05-19 15:21 ` Ligatures Eli Zaretskii
2020-05-19 15:44 ` Ligatures Clément Pit-Claudel
2020-05-19 16:15 ` Ligatures Eli Zaretskii
2020-05-19 15:36 ` Ligatures Tassilo Horn
2020-05-19 16:08 ` Ligatures Eli Zaretskii
2020-05-19 16:14 ` Ligatures Stefan Monnier
2020-05-19 3:47 ` Ligatures Stefan Monnier
2020-05-19 4:51 ` Ligatures Clément Pit-Claudel
2020-05-18 19:38 ` Ligatures Clément Pit-Claudel
2020-05-19 14:55 ` Ligatures Pip Cet
2020-05-19 15:30 ` Ligatures Clément Pit-Claudel
2020-05-19 15:52 ` Ligatures Pip Cet
2020-05-18 17:24 ` Ligatures tomas
2020-05-18 17:41 ` Ligatures Eli Zaretskii
2020-05-18 19:07 ` Ligatures tomas
2020-05-18 19:17 ` Ligatures Eli Zaretskii
2020-05-18 20:33 ` Ligatures Stefan Monnier
2020-05-18 17:31 ` Ligatures (was: Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY)) Clément Pit-Claudel
2020-05-18 17:39 ` Eli Zaretskii
2020-05-18 19:01 ` Clément Pit-Claudel
2020-05-18 19:15 ` Eli Zaretskii
2020-05-18 19:18 ` tomas
2020-05-18 20:37 ` Ligatures Stefan Monnier
2020-05-18 21:59 ` Ligatures (was: Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY)) Alan Third
2020-05-19 13:56 ` Eli Zaretskii
2020-05-19 14:39 ` Clément Pit-Claudel
2020-05-19 21:43 ` Pip Cet
2020-05-20 1:41 ` Clément Pit-Claudel
2020-05-20 2:07 ` Ligatures Stefan Monnier
2020-05-20 7:14 ` Ligatures (was: Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY)) tomas
2020-05-20 15:18 ` Eli Zaretskii
2020-05-20 17:31 ` Clément Pit-Claudel
2020-05-20 18:01 ` Eli Zaretskii
2020-05-20 18:33 ` Clément Pit-Claudel
2020-05-20 18:49 ` Eli Zaretskii
2020-05-20 18:53 ` Clément Pit-Claudel
2020-05-20 19:02 ` Eli Zaretskii
2020-05-20 23:19 ` Ligatures Stefan Monnier
2020-05-21 10:01 ` Ligatures (was: Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY)) Pip Cet
2020-05-21 14:11 ` Eli Zaretskii
2020-05-21 16:26 ` Pip Cet
2020-05-21 19:08 ` Eli Zaretskii
2020-05-21 20:51 ` Clément Pit-Claudel
2020-05-21 21:16 ` Pip Cet
2020-05-22 6:12 ` Eli Zaretskii
2020-05-22 9:25 ` Pip Cet
2020-05-22 11:23 ` Eli Zaretskii
2020-05-22 12:52 ` Pip Cet
2020-05-22 13:15 ` Eli Zaretskii
2020-05-22 13:29 ` Clément Pit-Claudel
2020-05-22 14:30 ` Eli Zaretskii
2020-05-22 14:34 ` Clément Pit-Claudel
2020-05-22 19:01 ` Eli Zaretskii
2020-05-22 19:33 ` Clément Pit-Claudel
2020-05-22 19:44 ` Eli Zaretskii
2020-05-22 20:02 ` Clément Pit-Claudel
[not found] ` <83mu5z171j.fsf@gnu.org>
2020-05-23 14:34 ` Clément Pit-Claudel
2020-05-23 16:18 ` Eli Zaretskii
2020-05-23 16:37 ` Clément Pit-Claudel
2020-05-22 13:56 ` Pip Cet
[not found] ` <83lflj16jn.fsf@gnu.org>
[not found] ` <AF222EA0-FE05-4224-8459-2BF82CE27266@vasilij.de>
[not found] ` <834ks7110w.fsf@gnu.org>
2020-05-23 11:24 ` Vasilij Schneidermann
2020-05-23 13:04 ` Eli Zaretskii
[not found] ` <83eerb145r.fsf@gnu.org>
[not found] ` <CAOqdjBeef8Fa596raEyBUwv0Zr+41LSiYvHW39EdoaXpyxCXVw@mail.gmail.com>
[not found] ` <831rnb0zld.fsf@gnu.org>
2020-05-23 12:36 ` Pip Cet
2020-05-23 14:08 ` Eli Zaretskii
2020-05-23 15:13 ` Pip Cet
2020-05-23 16:34 ` Eli Zaretskii
2020-05-23 22:38 ` Pip Cet
2020-05-24 15:33 ` Eli Zaretskii
2020-05-26 18:13 ` Pip Cet
2020-05-26 19:46 ` Eli Zaretskii
2020-05-27 9:36 ` Pip Cet
2020-05-27 17:13 ` Eli Zaretskii
2020-05-27 18:42 ` Pip Cet
2020-05-27 19:19 ` Eli Zaretskii
2020-05-23 17:32 ` Eli Zaretskii
2020-05-23 21:29 ` Pip Cet
2020-05-24 15:19 ` Eli Zaretskii
2020-05-23 12:47 ` Ligatures Stefan Monnier
2020-05-23 13:10 ` Ligatures Eli Zaretskii
2020-05-23 13:45 ` Ligatures Stefan Monnier
2020-05-23 14:12 ` Ligatures Eli Zaretskii
2020-05-23 13:36 ` Ligatures 조성빈
2020-05-23 14:15 ` Ligatures Stefan Monnier
2020-05-23 14:37 ` Ligatures Pip Cet
2020-05-22 11:44 ` Ligatures (was: Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY)) Eli Zaretskii
2020-05-22 13:26 ` Clément Pit-Claudel
2020-05-22 14:29 ` Eli Zaretskii
2020-05-22 14:32 ` Clément Pit-Claudel
2020-05-22 19:00 ` Eli Zaretskii
2020-05-21 21:06 ` Pip Cet
2020-05-22 6:06 ` Eli Zaretskii
2020-05-22 9:34 ` Pip Cet
2020-05-22 11:33 ` Eli Zaretskii
2020-05-19 20:26 ` Alan Third
2020-05-19 10:09 ` Trevor Spiteri
2020-05-19 14:22 ` Eli Zaretskii
2020-05-19 5:43 ` Ligatures ASSI
2020-05-19 7:22 ` Ligatures tomas
2020-05-19 7:55 ` Ligatures Joost Kremers
2020-05-19 8:07 ` Ligatures tomas
2020-05-19 10:17 ` Ligatures Yuri Khan
2020-05-19 14:26 ` Ligatures Eli Zaretskii
2020-05-19 19:00 ` Ligatures Yuri Khan
2020-05-19 10:43 ` Ligatures Werner LEMBERG
2020-05-19 10:48 ` Ligatures tomas
2020-05-19 14:18 ` Ligatures Eli Zaretskii
2020-05-19 14:52 ` Ligatures Eli Zaretskii
2020-05-19 15:11 ` Ligatures Pip Cet
2020-05-19 15:36 ` Ligatures Eli Zaretskii
2020-05-19 16:16 ` Ligatures Pip Cet
2020-05-19 16:41 ` Ligatures Eli Zaretskii
2020-05-19 17:00 ` Ligatures Eli Zaretskii
2020-05-17 18:28 ` Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY) Julius Pfrommer
2020-05-17 18:45 ` Eli Zaretskii [this message]
2020-05-17 22:28 ` chad
2020-05-18 22:08 ` Alan Third
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