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bug#52542: 29.0.50; Emoji makes lines taller
From: |
Rudolf Adamkovič |
Subject: |
bug#52542: 29.0.50; Emoji makes lines taller |
Date: |
Fri, 17 Dec 2021 22:57:54 +0100 |
Eli Zaretskii <eliz@gnu.org> writes:
> Emacs displays the line as tall as needed for the tallest character
> shown on that line. This is normal, and not a bug.
>
>> 3. delete the alien
>>
>> Actual: the line with "bar" becomes less tall
>>
>> Expected: all lines always have constant height
>
> Your expectations are unfounded, IMO. Emacs cannot possibly change
> the fonts you have on your system, and cannot truncate glyphs of the
> Emoji characters if they are taller than the font used for the default
> face. So it has no alternative but to make the line's height larger.
Interesting. I based my expectation on the built-in Terminal
application on macOS. It uses the same default font as Emacs, yet
emojis do not change the height of its lines.
> The only solution to that could be if you configure the fonts
> installed on your system to have a font which supports Emoji and whose
> height is not larger than that of the font used for the default face.
Cannot Emacs, when defaulting to "Apple Color Emoji", make the emojis a
bit smaller? Terminal seems to do that.
> Bottom line is: I don't see how this is an Emacs bug nor how to solve
> this in Emacs.
As Apple often says in their keynotes, "Only Apple can do that." :)
Rudy
--
"Logic is a science of the necessary laws of thought, without which no
employment of the understanding and the reason takes place." -- Immanuel
Kant, 1785
Rudolf Adamkovič <salutis@me.com> [he/him]
Studenohorská 25
84103 Bratislava
Slovakia