Unicode font support for window titles in Tabbed layout

[crocket]

Problem Description

When I watch japanese videos on youtube, the tab displays broken boxes.

This issue occurs on Gentoo Linux.
But, it doesn't occur on Manjaro Linux.

Configuration

import XMonad
import XMonad.Layout.Tabbed (tabbed, Theme(fontName))
import XMonad.Layout.SimpleDecoration (shrinkText)

main :: IO ()
main = do
  xmonad $ def
    { layoutHook = tabbed shrinkText def { fontName = "xft:Monospace-13" }
    }

[crocket]

dmenu doesn't have this issue on both Manjaro Linux and Gentoo Linux.

echo | dmenu -fn monospace-20 -p おはよう

[geekosaur]

Gentoo requires an explicit USE= to enable UTF8 string support in xmonad-contrib, IIRC.

…

On Tue, Aug 29, 2017 at 7:46 AM, crocket ***@***.***> wrote: Weirdly, this issue doesn't seem to occur on Manjaro Linux. It occurs on Gentoo Linux. I'm investigating. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#173 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AB8SoBTEAqsZ_OqAUfEA9gBzMBm7rIp-ks5sc_odgaJpZM4NMl5O> .

-- brandon s allbery kf8nh sine nomine associates [email protected] [email protected] unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net

[crocket]

I enabled xft USE flag globally in every gentoo package, but my xmonad configuration builds xmonad from source via stack. use_xft cabal flag is enabled by default in xmonad-contrib. Even if I bypass stack by using the sample config, the issue remains.

CKJ characters were drawn correctly on Manjaro Linux because the chosen font contained CKJ characters. On Gentoo Linux, the chosen font didn't contain CKJ characters. It seems xmonad-contrib doesn't detect a correct font for each character.

dmenu utilizes libXft to handle multiple languages with multiple fonts as below.

echo | dmenu -fn monospace-20 -p 'ایمان، اتحاد، نظم おはよう東方'

drw_text of dmenu chooses a correct font for each character.

[crocket]

If someone implemented something like drw_text from dmenu on top of Xft and substituted it for XMonad's current text drawing function, would it be merged?

[art-solopov]

I'm observing the same error. Ubuntu 16.04, Xmonad 0.12, Xmonad-contrib 0.12. I've tried to set the font theme to Noto Sans CJK, but the Japanese characters are displayed as squares. Cyrillic characters are displayed okay though.

[x-ji]

One can manually specify the font in the config, right? When I specify:

, fontName = "xft:Noto Sans CJK:size=10:antialias=true"

the tab titles (with CJK characters) are displayed correctly. I also originally encountered squares in the titles. I'm on Manjaro.

[x-ji]

However, the consequence of specifying such a CJK font is that other non-ASCII characters are not displayed correctly, such as ö. Guess if the issue #209 is solved then specifying a series of fonts should be the solution, just like what one does with xmobar.

[crocket]

fontconfig is the sane solution for choosing fonts.

[hanliinter]

Same issue on Gentoo, xmonad-contrib version 0.16 only with USE="+xft", google guided me here so I guess it might be the USE flag problem.

I re-emerged it with all USE flag "xft doc hscolour profile" and problem solved.

Maybe the key flag should be "profile" as it shows in the ebuild: https://gitweb.gentoo.org/repo/gentoo.git/tree/x11-wm/xmonad-contrib/xmonad-contrib-0.16.ebuild#n21

Hope it helps.

[hanliinter]

Same issue on Gentoo, xmonad-contrib version 0.16 only with USE="+xft", google guided me here so I guess it might be the USE flag problem.

I re-emerged it with all USE flag "xft doc hscolour profile" and problem solved.

Maybe the key flag should be "profile" as it shows in the ebuild: https://gitweb.gentoo.org/repo/gentoo.git/tree/x11-wm/xmonad-contrib/xmonad-contrib-0.16.ebuild#n21

Hope it helps.

[mikenrafter]

This should be closed. This is not XMonad's problem. You need to select the correct fonts to display your characters. The same is true of any program.

Though, perhaps the documentation should mention this in its examples.

[geekosaur]

Not necessarily. There also needs to be fallback font support, which I think is still missing in a bunch of places in contrib. This stuff doesn't just happen by itself, it needs to be coded.

[slotThe]

Font fallback is supported now, so I guess we can really close this now. I created #692 to track the documentation part