Re: [NonGNU ELPA] New packages: corfu-doc and corfu-doc-terminal

[Akib Azmain Turja <akib@disroot.org>]

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Eli Zaretskii <eliz@gnu.org> writes:

>> From: Akib Azmain Turja <akib@disroot.org>
>> Cc: emacs-devel@gnu.org, Yuwei Tian <ibluefocus@outlook.com>
>> Date: Sat, 28 May 2022 22:30:46 +0600
>> 
>> I think the best solution will be to implement child frames in terminal.
>> AFAIK, ncurses has a concept of floating window, which we can use to
>> render the frame.
>
> The difficulty in implementing child frames on TTY are not because
> Emacs cannot draw on TTY at arbitrary coordinates, it's because there
> are fundamental design principles on which TTY display is based.  I'd
> actually recommend to implement child frames on TTY as a special kind
> of window that is free of the "normal" window geometry restrictions.

I can't understand.  Emacs uses ncurses, and ncurses uses a single type
for both root window (the ncurses window covering the whole terminal; I
can't remember the name ncurses uses for this) and other windows.  Does
Emacs assume while render a frame that its drawing on the root window or
is it impossible to tell ncurses precisely which window to draw above?

-- 
Akib Azmain Turja

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