Re: gtk arabic colorings

[Behdad Esfahbod <behdad at cs dot toronto dot edu>]

On Sun, 14 Aug 2005, Meor Ridzuan Meor Yahaya wrote:

> Dear Ahmed, Mete,
>
> I think Ahmed is trying out to do it differently from what I did. If I
> understood correctly, you are trying to create and application that
> will highlight tajweed rule under gnome, right?
>
> What I idi is something very basic. I just create an html page so that
> each character will have different colors, nothing to do with tajweed
> rules. However, if we encode the text to correcpond to tajweed rules,
> we will have the correct colors for it.
>
> Anyway, it only works under IE. I use the <span> tag for each
> character. Under firefox, this will lead to the characters to take the
> isolated forms only, thus not very usefull. I did not try it under
> konq.


That's a bug in Mozilla that has been reported several times on
bugzilla.mozilla.org.

behdad



> Regards.
>
> On 8/11/05, Mete Kural <metek at touchtonecorp dot com> wrote:
> > Hello Ahmed,
> >
> > Meor might be able to provide some insight for you. He has been experimenting this feature with some rendering engines and I think Pango is one of them too. Meor, did you get the seperate coloring to work in Pango also or was it just uniscribe?
> >
> > Thanks,
> > Mete
> >
> > ---------- Original Message ----------------------------------
> > From: Ahmed El-Helw <ahmed at piousity dot net>
> > Reply-To: Development Discussions <developer at arabeyes dot org>
> > Date:  Tue, 9 Aug 2005 21:44:56 -0400
> >
> > >alsalam 3ala man itaba3 al huda -
> > >hope everyone is doing well.  i have been stuck for a while on this
> > >issue
> > >and was wondering if anyone could suggest how to get this to work.  i am
> > >trying to write a tajweed highlighting engine... in order to do so, i
> > >need to
> > >be able to color certain letters in an ayah a different color.
> > >
> > >the problem i am having is getting this to properly render in gtk.
> > >i've tried two different approaches:
> > >
> > >1. making two identical TextTags with nothing differing except the
> > >colors,
> > >2. playing around with pango_parse_markup() and, for instance,
> > >GtkLabels to
> > >     see if i could get anything to work.
> > >
> > >with the first, i had total failure - the letters would come out
> > >separated [ie the shaping
> > >would break].
> > >
> > >with the second, it depends on what i did - if, for instance, i just
> > >did color span of the
> > >first half the string to be blue and that's it, it appeared to
> > >perhaps work fine [i say it
> > >"appeared to work fine" b/c at that size, its hard to really tell
> > >whether they are two
> > >separate letters or are connected to each other, but they seem
> > >connected but am not
> > >totally sure on that] -- but when i tried making the font larger, you
> > >could clearly see shaping broken.
> > >
> > >i tried to email owen and ask him, and his response a few months ago
> > >was that it was
> > >working as far as he knew and if i could write a c demo showing it to
> > >submit a bug to
> > >bugzilla - i've done so recently and emailed him, but i take it he's
> > >really busy and so
> > >hasn't gotten a chance to write back.  in addition, ppl on the gtk-
> > >app-devel list didn't
> > >answer either.
> > >
> > >if anyone can give me any sort of tip would be greatly appreciated.
> > >thanks,
> > >-ahmed
> > >
> > >
> >
> > --
> > Mete Kural
> > Touchtone Corporation
> > 714-755-2810
> > --
> >
> >
> > _______________________________________________
> > Developer mailing list
> > Developer at arabeyes dot org
> > http://lists.arabeyes.org/mailman/listinfo/developer
> >
>

--behdad
http://behdad.org/