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qs-raven 08-10-2005 10:40 AM

GTK1 not understanging UTF8?, LANG=pl_PL.UTF-8

I have the following problem: Applications that use GTK1 have problems with input and output of text.
Variable LANG=pl_PL.UTF-8
(which is polish in UTF-8), but I believe, that this issue concerns every system with UTF-8 (not only with polish language).
I'm using UTF-8 wherever possible (also in filesystems).
The symptoms:
1. when entering polish character in e.g. one of Gnome-Commander's edit boxes: two characters show instead of one.
2. when browsing filesystem: if filename has polish characters ( probably any non-latin character, actually ), one letter is displayed as two weird characters. Also all GUI elements with non-latin letters have the same problem.
3. When in e.g. Gnome-Commander I choose a font with iso 10646-1 encoding (which is related to Unicode, i believe): The font selection dialog informs me: "this two-byte font may not be displayed correctly" (actually it is in polish but I translated it to English). Indeed the font is not shown correctly! Instead of letters i see rectangles wherever the new font is used.

QT, KDE and GTK2 don't have any trouble (and never had) and work perfectly (both input and output). So the problem must be in GTK1 or its configuration.
The apps, with which I experience problems, are: Gnome-Commander, Gentoo (file manager), Cine Paint.

I've experimented with various GTK - related configuration files in /etc/ but with no good results.
I've also searched on the Internet but didn't find a solution to my specific problem.
My questions are:

1. does GTK1 support Unicode at all? UTF8?
2. if yes: how do i tell it that i am using Unicode?
3. if no: is there any workaround?

I'm using simplyMepis 3.3.1 ( based on Debian ).
Please help :-), TIA

PS I'm a novice Linux user.

qs-raven 08-15-2005 08:01 AM

Hey. Noone is answering...
I've recently thought: Maybe the problem isn't in the GTK1 itself but in X Windows' input methods and text rendering? Maybe Xs don't know about Unicode in these applications?

Valhalla 08-15-2005 08:47 AM

I do not beleive that GTK1 is unicode aware, though the 2.x series is.

qs-raven 08-15-2005 08:54 AM

So is there a way to force encoding upon an application? I would like to force ISO8859-2 in some UTF-incompatible applications. Then at least I would have proper handling of polish letters in them ( i think :-) ).

PS Yes. I know that GTK2.x supports Unicode :-) And it apparently does it very well :-)
What about other toolkits? ( Xaw, Motif, ... )

Valhalla 08-15-2005 02:37 PM

I think motif support unicode, not sure about xaw. I do not beleive there is anyway to force unicode on gtk1 unless you want to get very deep into the source code. What exactly rae you doing that you have the option of using all these different toolkits?

Ygrex 12-03-2006 08:31 AM

Heh, a good question was a year ago

dillo uses gtk1 yet
dillo itself supports UTF8 well, but gtk1 does not
I investigated it alittle, there is a trick to force some codepage typing an appropriate font into /etc/gtk/gtkrc.utf-8 (i.e. iso8859 fonts or smth like it)
It is good, but I'd like to use unicode

does anyone found solution?

Thanks in advance,


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