[Bf-committers] XIM improvement (non-latin support + connection recovery)

[IRIE Shinsuke]

Hi Kajiyama-san,

1. I confirmed the same error on Ubuntu 11.10 + VirtualBox 4.1.8, but
I also got this error without applying my patch when quitting Blender
by Control+Q + ENTER.  Maybe this error happens if XIM server attempts
to send the reply to already deleted window.  I think it's no problem
because the error handler ApplicationErrorHandler() in
GHOST_WindowX11.cpp simply display the message.

2. I'm using Ubuntu 11.10 amd64 on a real machine.  In my test
environment, the international font is properly displayed with no
specific font setting except in the text editor.  I guess the
unreadable blank text in VirtualBox is due to the graphic driver (not
for your font setting).

Currently Blender's text editor uses a hard-coded monospace font
defined in source/blender/editors/datafiles/bmonofont.ttf.c.  This
font doesn't have the Japanese glyphs and cannot be changed to another
one by any settings, unfortunately.  I tried making another patch that
uses international monospace font, but showing the cursor and the
word-wrapping didn't work correctly because the text editor doesn't
consider wide-characters at all.  Probably the text editor needs
drastic changes to use international font.

Anyway, thanks for the testing!

> Irie-san,
>
> The XIM support works fine on Ubuntu 10.04 x86_64 (running on VirtualBox
> 4.1.8) together with its default ibus input method framework.  Only Japanese
> text editing was tested using Anthy.  The text editor can create UTF-8 encoded
> text files as expected.
>
> A few issues were observed with the patched Blender as documented below:
>
> 1. When Blender is terminated, the following error message shows up on
> console.  The serial numbers vary every time the program quits.
>
>> X Error of failed request:  BadDrawable (invalid Pixmap or Window parameter)
>>    Major opcode of failed request:  14 (X_GetGeometry)
>>    Resource id in failed request:  0x4e00004
>>    Serial number of failed request:  2267
>>    Current serial number in output stream:  2267
>
> 2. Japanese characters are not displayed properly.  They appear as blank
> rectangles instead of glyphs.  This issue seems due to some missing setting
> related to fonts and not an issue of the patch.  Anyway, did you need a
> specific font setting in your test environment?
>
> Thanks,
>

-- 
IRIE Shinsuke