Re: [orca-list] Color name support just added to Orca master

[Christopher Chaltain <chaltain gmail com>]

Wow, I'm curious how you did this. I gave it some thought a few years 
ago, and I did find a table mapping RGB values to color names, but I 
couldn't find an algorithm on line and I couldn't come up with one 
myself. I didn't spend that much time on it though, and I'm not the 
smartest guy in the world, so it doesn't surprise me that someone else 
cracked this nut, but I am curious how you did it. Feel free to ignore 
this question or respond to me privately if you don't want to discuss it 
or take up any list traffic on it. I'm just curious.

On 05/11/2014 03:59 AM, Joanmarie Diggs wrote:
> Hey all.
>
> I have just committed color name support to Orca. This support
> translates the RGB numbers Orca reports for text foreground and
> background color into names that are hopefully more understandable.
>
> In my testing thus far, the following are working as I would expect:
> * LibreOffice Writer
> * Firefox and Thunderbird
> * Gtk+ 2, Gtk+ 3, and VTE where color is set ahead of time
>
> But I have found a number of cases where the RGB value we get via
> AT-SPI2 is incorrect. Not sure why yet. Regardless, as a result, Orca is
> translating the bogus value into a correspondingly-bogus name. Garbage
> in, garbage out.
>
> The apps/toolkits where I am aware of these issues are:
> * Epiphany/WebKitGtk
> * GNOME Shell
> * Gtk+ 2, Gtk+ 3 , and VTE where color is changed based on context
>
> What I mean by changed based on context are things like viewing code in
> Gedit where Gedit displays comments in a different color because they
> happen to be comments.
>
> I'll do some triaging and bug filing for the above issues soon.
>
> The last thing I'll mention is that right now, this is not a
> GUI-configurable option. I'll worry about that another time. But for
> those of you who use Orca master want RGB values and not names, you can
> set useColorNames to False in your orca-customizations.py.
>
> Take care.
> --joanie
> _______________________________________________
> orca-list mailing list
> orca-list gnome org
> https://mail.gnome.org/mailman/listinfo/orca-list
> Visit http://live.gnome.org/Orca for more information on Orca.
> The manual is at http://library.gnome.org/users/gnome-access-guide/nightly/ats-2.html
> The FAQ is at http://live.gnome.org/Orca/FrequentlyAskedQuestions
> Log bugs and feature requests at http://bugzilla.gnome.org
> Find out how to help at http://live.gnome.org/Orca/HowCanIHelp

--
Christopher (CJ)
chaltain at Gmail