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Published 20 hours ago • verified publisher icon BoostIO

Display incorrect kanji gryph when interface language is Japanese

Open Meiryo7743 opened this issue 4 years ago • 5 comments

Current behavior

App does not display correct kanji gryph when display language setting is Japanese, except editing area and markdown preview, which are able to change font family.

I don't know how this behavior expresses in English but in Japanese, it is called "中華フォント現象".

I think the font family seems to be prioritized Chinese over Japanese.

Here are screenshots:

Click to show images

Screenshot_editing Screenshot_settings

I marked the problem as yellow lines.

Expected behavior

App should display correct kanji gryph like below images.

Click to show images

改善_Screenshot (197) - Copy 改善_Screenshot (200) - Copy

Steps to reproduce

  1. Open settings
  2. Set Interface Language to Japanese

Environment

Desktop

  • Boost Note.next version: 0.5.0
  • OS version and name: Windows 10 version 1909 (OS Build 18363.836)

Meiryo7743 avatar May 31 '20 09:05 Meiryo7743

i had the same problem with Google Chrome. As a work around i set font priority system wide. it did not work with firefox, though.

arcturus140 avatar May 31 '20 10:05 arcturus140

@Meiryo7743 Thanks for the reporting! Apparently the bug is from electron but I think we could do something by ourselves.

Could you tell me which font are you using in the expected screenshot? I think I should apply it when users select Japanese locale.

Also I think I should let users choose UI font.

Rokt33r avatar Jun 01 '20 06:06 Rokt33r

The font that is used in the expected screenshots is Meiryo (メイリオ), one of pre-installed Japanese fonts on Windows Vista and later. Also Source Han Sans (Noto Sans CJK) is better choice, but unfortunately it is not pre-installed.

Moreover, there is a need to consider Mac users though the same bug have been occured on macOS or not.

Considering these things, I suggest that the best order of Japanese UI fonts:

"Source Han Sans", "Hiragino Sans", "Meiryo", sans-serif

Also I think I should let users choose UI font.

I think it is good idea!

Meiryo7743 avatar Jun 01 '20 15:06 Meiryo7743

Thanks for the answer. AFAIK, the problem happens in Windows only. I've checked macOS 10.15.x and Pop! OS 19.x(Linux).

Rokt33r avatar Jun 05 '20 08:06 Rokt33r

Thanks for replying.

I probably figured out what makes kanji gryph incorrect displaying.

The bug occurs only when system language on Windows is not Japanese.

I verified as to whether or not that is true.

Here is the results:

Lang Japanese English (en-US)
SS
Gryph Correct Wrong (underlined in yellow)

Thus I guess that changeable UI font is only way of fixing the bug ...

Meiryo7743 avatar Jun 09 '20 13:06 Meiryo7743