gdi32: Implement automatic font substitution

[Liu Qishuai]

No.

1. In Windows XP, I deleted the FontLink register key and rebooted,
and the Chinese characters are still displaying correctly.

2. I moved simsun.ttc (The default font in Simplified Chinese) to
another directory and rebooted. Windows XP automatically uses
simhei.ttf (another Chinese font) to display Chinese characters. There
is no register key for this font.



2008/7/2 Huang, Zhangrong <hzhrong at gmail.com>:
> Hi,
>>     * Append all fonts on child_list so that if a character is not available in the font,
>>     * other fonts will be automatically used. This is how Windows does to get a CJK character
>>     * when a latin font is specified.
>
> That's not correct, actually Windows does this by using FontLink
> registry, so does wine now. Your patch seems to break FontLink.
> "Automatic font substitution" often means wine will choose the CJK
> replacement font which user doesn't prefer to.
>
> On CJK env, if a latin font doesn't not have a FontLink, it will
> fallback to use the FontLink of "Microsoft Sans Serif", so user can
> set preferred font there.
>
> 2008/7/2 Liu Qishuai <lqs.buaa at gmail.com>:
>> 2008/7/2 Dan Kegel <dank at kegel.com>:
>>> Can you write a conformance test that verifies this behavior?
>>
>> Sorry, I don't know how to write a test yet. Maybe I will write a test later.
>>
>>> Also, can you identify a bug in bugzilla this will fix?
>>
>> Such as bug 4065, 10864, 14151.
>
> Please set the following registry key, it should fix those bugs:
>
> [Software\\Microsoft\\Windows
> NT\\CurrentVersion\\FontLink\\SystemLink] 1208451304
> "Microsoft Sans
> Serif"=str(7):"simsun.ttc,SimSun\0gulim.ttc,Gulim\0msgothic.ttc,MS UI
> Gothic\0mingliu.ttc,PMingLiU\0"
> "Tahoma"=str(7):"simsun.ttc,SimSun\0gulim.ttc,Gulim\0msgothic.ttc,MS
> UI Gothic\0mingliu.ttc,PMingLiU\0"
>
> Maybe we need a patch to set up the default FontLink of "Microsoft
> Sans Serif" and "Tahoma" now, since FontLink works fine on WIne.
>
> --
> $ apt-get moo
>  (__)
>  (oo)
>  /------\/
>  / | ||
>  * /\---/\
>  ~~ ~~
> ...."Have you mooed today?"...
>