[Fedora-i18n-bugs] [Bug 568613] Plan to change wqy-microhei-fonts and wqy-zenhei-fonts fontconfig conf files.

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https://bugzilla.redhat.com/show_bug.cgi?id=568613

--- Comment #6 from Qianqian Fang <fangqq at gmail.com> 2010-03-05 11:54:30 EST ---
I responded by email last night, but it did not show up, so I paste my response
again.

> --- Comment #5 from Peng Wu<pwu at redhat.com>  2010-03-04 21:19:09 EST ---
> Actually what we want to change is as following:
> 1. Make wqy-zenhei as default for Simplified Chinese users,
>     Make UMing as default for Traditional Chinese users.
>    

I am not sure which language did you use in
the past, but I do see a couple of problems here:

First of all, Zen Hei and UMing are fonts of different styles.
one is Sans, one is Serif (let's ignore the embedded bitmaps
for a second). They are more like Dejavu Sans vs. Dejavu Serif,
than like Droid Sans Fallback vs. Droid Sans Japanese.
They mean to represent different types of visual elements
in the text layout (and used simultaneously), and not
meant to represent the same information for different languages.

Second, UMing/UKai are not "consistently" traditional
Chinese styled. For most glyphs, they are rather mainland
Chinese styled. It does contain traditional Chinese styled
characters as merged from AR PL Mingti2L Big5, but they
are not consistent, for example, all the components
with "角" are SC-styled (唃嘝嘴嶰廨懈斛桷槲檞澥确繲薢角觙
觚觛觜觞觟觠解觥觧觫觭觯觲觳觺觻邂鵤); many "骨" components
are TC, but several are SC, such as "骶骺髅髋髌鹘"; all
the "今" components are SC, such as in "今仱侺吟妗岑岒庈
忴扲昑枔棽涔琌琴矜笒紟耹肣芩蚙衿軡鈐钤霒霠黔"; almost
all chars with radical "黑" are SC, except "黓" is TC.
I can not give all of the examples, there are so many
inconsistencies. If you are interested, you can download a copy of
Unicode code chart (second column) and compare with Uming glyphs:
http://unicode.org/charts/PDF/U4E00.pdf


> When user choose "Sans" / "Serif" / "MonoSpace":
> 1.  In zh_CN locale, it will use "Zen Hei" as default,
> 2.  In zh_TW locale, it will use "UMing" as default.
>    

Personally, I like the way Ubuntu handles this: Zen Hei is
the default CJK Sans font, and UMing is the default Serif font.
On LiveCDs where space is limited, only one font is installed,
before 9.10, it was UMing, after 9.10, it was ZenHei.


> If you installed both zenhei and Uming/Ukai, I think it will show in font list
> when querying with fontconfig.
>
> In brief, we just want to change the default fonts for SC and TC users. The
> font styles is still available when the fonts is installed.
>    

At this point, there is no TC-shaped fonts available. So,
you can't really solve this by splitting zenhei/uming,
as both of them are mostly SC-styled Unicode fonts. I do have the plan
to create TC variant of ZenHei, and Arne also split the font
names to UMing CN/UMing TW, but there are lot of things
need to be done to make them TC consistent.

> Currently I am trying to change font conf to achieving this, but meet some
> problems. Maybe you could help me on this.
>    

As I said, set zenhei/microhei for sans, set uming for serif, that's
probably the best we can do. In addition, giving users an easy
way to switch between bitmaps and anti-aliased glyphs is probabily
a much useful feature than setting SC/TC with separate default fonts.

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