[Bug 568402] [NEW] Qt displays half width character as full width in some Japanese fonts

Daisuke Kameda daisuke at kde.gr.jp
Thu Apr 22 13:09:14 UTC 2010


Public bug reported:

Binary package hint: libqtgui4

There is the problem that Qt displays half width character
(e.g. alphabet) as full width in some Japanese fonts.
This problem was reported in #QTBUG-1726
<http://bugreports.qt.nokia.com/browse/QTBUG-1726>.

This occurs in the following fonts.
- Monospace font
- Selif font
- IPA font (Ver.0301)
- NSimSun

In Cario and fontconfig etc., the FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH
is specified as flag of FT_Load_Glyph function to solve this problem.

According to the document of freetype,
this flag exists to support buggy CJK fonts.
http://www.freetype.org/freetype2/docs/reference/ft2-base_interface.html#FT_LOAD_XXX

This patch is already merged in Qt4.7 branch.

** Affects: qt4-x11 (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Qt displays half width character as full width in some Japanese fonts
https://bugs.launchpad.net/bugs/568402
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