unofficial mirror of emacs-devel@gnu.org 
 help / color / mirror / code / Atom feed
From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: Cursor drawing
Date: Thu, 20 Dec 2018 14:58:57 -0500	[thread overview]
Message-ID: <jwvr2ecynxh.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <83zht0at4d.fsf@gnu.org> (Eli Zaretskii's message of "Thu, 20 Dec 2018 21:35:46 +0200")

> Then this can be done today, without any changes in the architecture
> of the display engine.

That's the intention, yes.

> The disadvantage of this is, of course, that the code that draw the
> face cursors will be needed to be implemented 4 times, one each for
> every terminal-specific backend we support.

Indeed.  Tho, we could try and use some existing "standard" drawing
library so as to share most of the code for the GUIs (we'd likely still
need to hand-code the non-GUI case).

>> >> The advantage would be mostly that the overlay data structure could be
>> >> designed completely differently from glyph-matrices
>> > Like what, for example?
>> Maybe more like an SVG canvas?
> You got me here: I have no idea how that works.

I don't either.  I meant some kind of vector graphics.  This might allow
us to offer new features such as drawing arrows going from one buffer
position to another.


        Stefan



  reply	other threads:[~2018-12-20 19:58 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-20  4:11 Process: Determining the origin of a command loop Keith David Bershatsky
2018-12-20 14:11 ` Eli Zaretskii
2018-12-20 15:39   ` Cursor drawing (was: Process: Determining the origin of a command loop) Stefan Monnier
2018-12-20 19:07     ` Cursor drawing Eli Zaretskii
2018-12-20 19:18       ` Stefan Monnier
2018-12-20 19:35         ` Eli Zaretskii
2018-12-20 19:58           ` Stefan Monnier [this message]
2018-12-21  4:03             ` Elias Mårtenson
2018-12-21  7:09               ` Eli Zaretskii
2018-12-21 16:36                 ` Elias Mårtenson
2018-12-21 20:05                   ` Eli Zaretskii
2018-12-21 20:27                     ` Clément Pit-Claudel
2018-12-21 20:37                       ` Eli Zaretskii
2018-12-21 20:41                         ` Eli Zaretskii
2018-12-22 16:43                         ` Stefan Monnier
2018-12-22 17:03                           ` Eli Zaretskii

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=jwvr2ecynxh.fsf-monnier+emacs@gnu.org \
    --to=monnier@iro.umontreal.ca \
    --cc=eliz@gnu.org \
    --cc=emacs-devel@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).