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From: "Clément Pit-Claudel" <cpitclaudel@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: What is the proper way to scale fringe-bitmaps for high-DPI displays?
Date: Wed, 20 Mar 2019 16:05:48 -0400	[thread overview]
Message-ID: <dee32efb-672a-0d62-910f-51aa8ebe32e2@gmail.com> (raw)
In-Reply-To: <83h8bxs53y.fsf@gnu.org>

On 2019-03-20 15:44, Eli Zaretskii wrote:
>> Cc: emacs-devel@gnu.org
>> From: Clément Pit-Claudel <cpitclaudel@gmail.com>
>> Date: Wed, 20 Mar 2019 15:34:26 -0400
>>
>>> Instead, I think when a frame is created, we should record its
>>> high-DPI state in the frame structure, or maybe in the frame's
>>> parameters, and then use that when we prepare the fringe bitmaps for
>>> display.
>>
>> That would be nice.  In fact, we already have code to detect high-DPI displays in C, in x_get_scale_factor in xterm.c (used to scale wavy underlines).  Would the way to go be to record the value returned by this function in the frame's parameters?
>
> The frame's parameters is a better way if we think such a parameter
> will be useful to Lisp programs, and calling a function for that is
> too much overhead.  Otherwise, a simple field of 'struct frame' will
> be somewhat less hassle, because you don't need to mess with the likes
> of frame-parameter to teach them about this new parameter.  But either
> way, the job is not hard.

Oh, so Emacs' C code would scale the bitmaps? I expected the Lisp code would do that.




  reply	other threads:[~2019-03-20 20:05 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-20 14:55 What is the proper way to scale fringe-bitmaps for high-DPI displays? Clément Pit-Claudel
2019-03-20 17:32 ` Eli Zaretskii
2019-03-20 19:34   ` Clément Pit-Claudel
2019-03-20 19:44     ` Eli Zaretskii
2019-03-20 20:05       ` Clément Pit-Claudel [this message]
2019-03-20 20:17         ` Eli Zaretskii
2019-03-20 21:17           ` Clément Pit-Claudel
2019-03-21  3:32             ` Eli Zaretskii
2019-03-21 11:43               ` Daniel Pittman
2019-03-21 13:33                 ` Yuri Khan
2019-03-21 14:32                   ` Eli Zaretskii
2019-03-21 17:32                     ` Alex
2019-03-21 18:31                       ` Eli Zaretskii
2019-03-21 17:38                     ` Clément Pit-Claudel
2019-03-21 18:33                       ` Eli Zaretskii
2019-03-21 17:40               ` Clément Pit-Claudel
2019-03-20 19:37   ` Clément Pit-Claudel
2019-03-21 15:24   ` Dmitry Gutov
2019-03-21 16:02     ` Eli Zaretskii

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