[Bug 16325] New: incorrect font rendering for CJK programs

http://bugs.winehq.org/show_bug.cgi?id=16325

Summary: incorrect font rendering for CJK programs
           Product: Wine
           Version: CVS/GIT
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: gdi32
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
                CC: [e-mail]

Created an attachment (id=17630)
 --> (http://bugs.winehq.org/attachment.cgi?id=17630)
patches, in a tar.bz archive

If a CJK program uses "ANSI_CHARSET" to create font instance, text is not
correctly rendered, the result is that 
some text in the affected programs are not correctly displayed.  This is not a
"critical" problem but I consider
it a "blocker" for most Chinese Wine users as it happens massively.

This problem is reported and fixed here:

http://bugs.winehq.org/show_bug.cgi?id=4065

However, the fix only dealt with a particular program (picasa) and is not a
universal fix.  A hack specifically designed for 
Chinese user (codepage 936) is proposed, but not accepted because it is not
"universal".  This patch is based on the
cp936 hack proposed in bug #4065.

The patch has two flavor, the first one uses GetACP() to obtain correct
codepage to use, which is preferred.  The second
will use environment variable WINE_DEFAULT_CODEPAGE, if not defined, will NOT
affect original code flow.  The 2nd
method added a little bit inconvenience for CJK users, but maintains maximum
compatibility, because as discussed
on the Ubuntu Chinese forum, there are better solutions, which is out of my
ability to change:

http://forum.ubuntu.org.cn/viewtopic.php?f=121&t=169647 (Chinese)