[BRLTTY] Russian braille tables and orca issue

[Alexander Epaneshnikov]

On Tue, Jan 18, 2022 at 12:58:39AM +0100, Samuel Thibault wrote:
> Alexander Epaneshnikov, le lun. 17 janv. 2022 00:12:37 +0300, a ecrit:
> > On Sun, Jan 16, 2022 at 03:09:04PM -0500, Dave Mielke wrote:
> > > [quoted lines by Alexander Epaneshnikov on 2022/01/16 at 22:45 +0300]
> > >
> > > >I think Dave, please correct me if this isn't the case - brltty doesn't
> > > >use an abbreviation table for brlapi clients.
> > >
> > > What are abbreviation tables? Do you mean contraction tables? If so, then, no, I don't think that the BrlAPI interface uses them.
> >
> > yes. contraction tables sorry.
> > should brlapi use contraction tables if just text is fed to brlapi? I think yes.
>
> Yes, but that won't fit orca's needs. For a start, Orca doesn't use
> writeText, it crafts a writeStruct, since it may have and/or masks
> to set. And that's for a reason: if it was brltty that were doing
> the contraction, Orca would have no idea how much text did fit on
> the display, and thus not be able to achieve proper text-window
> switching. This is just like text rendering on X: nobody uses the X
> server-based text rendering any more, and everybody uses e.g. pango
> to render on the client side with all sizing constraints information,
> then push the bitmap to the server. Similarly, for contracted text we
> should just let Orca perform the contraction and push the rendered dots
> to BrlAPI. Orca actually already supports that, you can enable it in
> its preference dialog. Possibly we'd want to synchronize options: when
> enabling contraction in brltty that'd enable it in Orca, and conversely
> and vice-versa. That's to be done on the Orca side.

this is exactly what does not work for me, nor for Vsevolod. and this problem
is now bypassed by updating the Russian table in brltty.

I also want to note that in our situation we are talking not so much about
contractid braille, few people use it in Russia, but about new tables of
ordinary Russian computer or literary braille.

> Samuel

--
Sincerely, Alexander