Re: font substitution

[Yen-Ju Chen]

Thanx. I can confirm it work.
I am also surprised that it depends on the environment.
Where does this number '1114112' come from ?
I thought each plane on unicode is 2^16,
and it can have 4 planes ?
Maybe I got this wrong...

Yen-Ju

On 8/15/07, Fred Kiefer <fredkiefer@gmx.de> wrote:
> After switching from KDE to Gnome, I was able to reproduce your
> character set problem and hacked in a fix for it. Could you please give
> it a try?
>
> Cheers,
> Fred
>
> Yen-Ju Chen wrote:
> > On 8/12/07, Fred Kiefer <fredkiefer@gmx.de> wrote:
> >> Yen-Ju Chen wrote:
> >>> On 8/12/07, Fred Kiefer <fredkiefer@gmx.de> wrote:
> >>>> Yen-Ju Chen wrote:
> >>>>> On 8/12/07, Yen-Ju Chen <yjchenx@gmail.com> wrote:
> >>>>>> On 8/12/07, Fred Kiefer <fredkiefer@gmx.de> wrote:
> >>>>>>> I tried both the AR PL fonts and they seem to work for me. The problem
> >>>>>>> you reported in the other mail was when creating the character set, 
> >>>>>>> not
> >>>>>>> when checking if a character was included. Perhaps you could send me
> >>>>>>> your test file. At the moment I am not able to reproduce the problem.
> >>>>>>>
> >>>>>>> Excluding some fonts from the check wont be an option as people may 
> >>>>>>> want
> >>>>>>> to use this fonts anyway and then we have the same problem. We really
> >>>>>>> need to find out, what is going wrong here.
> >>>>>>>
> >>>>>>> And GNUstep should be able to support all Unicode characters, if not 
> >>>>>>> we
> >>>>>>> need to change this. From looking at the code I see no limitation.
> >>>>>>   Here is the text I used. It is in UTF-8 encoding.
> >>>>>>   You need a Chinese font (AR PL...)
> >>>>>>   and another font which has better coverage than usual,
> >>>>>>   probably one of the DejaVu font for a row of symbol in the bottom.
> >>>>>   I check the fonts again.
> >>>>>   The one in question is "AR PL ZenKai Uni.nfont".
> >>>>>   It shows a "Critical Error" of NSCharacterSet panel and
> >>>>>   and an exception in terminal:
> >>>>>   " NSImage: compositeToPoint:fromRect:operation: failed due to
> >>>>>     NSInternalInconsistencyException: Cannot find stored representation"
> >>>>>
> >>>>>   If you want to try, there is an application in Etoile:
> >>>>>   Etoile/Services/User/Typewriter/
> >>>>>   (Well, you also need Etoile/Frameworks/OgreKit, which need oniguruma 
> >>>>> library).
> >>>>>   You can create a new document, choose "Edit"->"Characters...".
> >>>>>   It is a panel allowing you to see all of the glyphs from a chosen 
> >>>>> font.
> >>>>>   When you choose "ZenKai", the exception raises.
> >>>>>   Or you can use Etoile/Services/User/FontManager/ (no dependency).
> >>>>>   It has the same result.
> >>>>>   I have to say a bad font can be anywhere.
> >>>>>
> >>>> Thank you for all these advices. I was able to reproduce and understand
> >>>> the flipping of the font. It happens when a font without an explicit set
> >>>> matrix gets replaced by an explicit matrix. This is rather strange and
> >>>> most likely wrong. To work around this problem I now use a font manager
> >>>> method, which in the end does exactly what you suggested. This way has
> >>>> the benefit that when ever we improve the code in NSFontManager the font
> >>>> substitution will also improve.
> >>>   That sounds great !!
> >>>
> >>>> Even with all your help I was not able to reproduce the NSCharacterSet
> >>>> problem. Is it possible that this only happens with a certain version of
> >>>> Freetype? I seem to have libfreetype.so.6.3.16 on my SuSE 10.2 system.
> >>>   Hmm... It is possible. I use Ubuntu 6.10/PPC.
> >>>   I have to check what version of freetype on the system.
> >>>   But what surprises me is that NSFont can get the correct numberOfGlyphs.
> >>>   So it may be something unrelated to NSFont, but glyph rendering.
> >>>
> >>>   By the way, could you add a user default for -gui or -back,
> >>>   such as NSPreferredFonts,
> >>>   so that users can easily specify their preferred fonts ?
> >> Oops, I thought I did that already. It should be NSPreferredFonts, but I
> >> never tried it myself :-(
> >>
> >
> >   O.K. NSPreferredFonts in user defaults works.
> >   My freetype is 6.3.10.
> >   Well, before Ubuntu update freetype2,
> >   I have to temporarily remove the bad font.
> >
> >   Yen-Ju
> >
>
>