[Lazarus] [BIDI] TGrid and many bugs if i add Right To Left

[Zaher Dirkey]

On Mon, Apr 12, 2010 at 11:11 AM, Hans-Peter Diettrich <DrDiettrich1 at aol.com
> wrote:


> One problem may be the extent of BiDi support, that is unknown to most
> (western) developers. E.g. I even don't know how to enter RTL text, so that
> all related code should be implemented and checked by people that are
> familiar with RTL applications and environment.
>
> Does there exist a list of things that should change in RTL mode?
>
> Newer Windows systems have an API for rendering full Unicode text,
> including an mix of LTR and RTL parts. Do there exist similar libraries for
> other platforms or widgetsets (Qt???)? If yes, these libraries should be
> explored and a compatible wrapper (class) should be constructed, for
> immediate use in most components (SynEdit may be an exception). If not, an
> API must be defined first, and then the platform specific libraries must be
> implemented accordingly.
>
>
Win32, GTK2 and QT support RTL(Right To Left reading), but i am not
expiration with GTK2 and QT

But there seem to exist more issues with RTL, like the rows in a grid
> running from right to left? Such behaviour can be tested by everybody, at
> least by faking RTL mode to make the different appearance occur.
>
>
Most native controls like grid will work on all widgetsets except draw the
string inside the cell, so if it done for TLabel for GTK/QT this issue will
resolved.
TGrid in my svn draw its columns right to left, for that i opened this
thread.


>  Sorry for my poor English, i am writing in English as like writing
>> programming code :)
>>
>
> Does there exist a Wiki (Wikipedia?) entry, that describes *all* required
> changes in BiDi/RTL mode?
>
>
http://wiki.lazarus.freepascal.org/BidiMode#References

Thanks
-- 
Zaher Dirkey
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