From: "Clément Pit-Claudel" <cpitclaudel@gmail.com>
To: Emacs developers <emacs-devel@gnu.org>
Subject: What is the proper way to scale fringe-bitmaps for high-DPI displays?
Date: Wed, 20 Mar 2019 10:55:43 -0400 [thread overview]
Message-ID: <4be02093-6e31-bfde-7d11-5900c7e02668@gmail.com> (raw)
Hi all,
Users on Flycheck are complaining about poor readability of our fringe bitmaps on high-DPI monitors, as the bitmaps look tiny on such screens. An easy fix is to double the size of the bitmap, but it leaves users of low-DPI monitors in the cold. A trickier fix would be to dynamically detect the current monitor's density, and pick the appropriate bitmap accordingly, but I'm not entirely sure how to do detect these high-DPI monitors:
- x-display-monitor-attributes-list seems OK, but looks more complex than what we need (based on looking at the C code) — is it OK to call it repeatedly to figure out the current monitor's density for a given frame?
- x-display-pixel-width and x-display-pixel-mm seem simpler, but the documentation says 'On "multi-monitor" setups this refers to the pixel width for all
physical monitors associated with TERMINAL.'. What does this mean?
Also, how do applications typically deal with frames being moved from a low-DPI monitor to a high-DPI one? Is that an issue in practice?
Thanks!
Clément.
next reply other threads:[~2019-03-20 14:55 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-20 14:55 Clément Pit-Claudel [this message]
2019-03-20 17:32 ` What is the proper way to scale fringe-bitmaps for high-DPI displays? 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
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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