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From:	"Evan Foss (evanfoss AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Date:	Tue, 15 Aug 2017 14:11:50 +0000
Message-ID:	<CAM2RGhR1s9TcL9=4BRCvh1ApfLmnWmXu6mh5MVWSDVLhwODsAQ@mail.gmail.com>
Subject:	Re: [geda-user] bugreport gschem on OS-X 12.6 graphics plotz
To:	gEDA users mailing list <geda-user AT delorie DOT com>
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On Tue, Aug 15, 2017 at 1:36 PM, John Doty <jpd AT noqsi DOT com> wrote:
>
> On Aug 15, 2017, at 4:37 AM, Roland Lutz <rlutz AT hedmen DOT org> wrote:
>
> Hi Evan,
>
> On Tue, 15 Aug 2017, Evan Foss (evanfoss AT gmail DOT com) [via
> geda-user AT delorie DOT com] wrote:
>
> I work with someone who is trying to migrate over to gEDA and is trying to
> use it on a mac. He installed via brew with geda-gaf-1.8.2 and is seeing
> some strange graphical errors. Has anyone seen this kind of issue before?
> Attached is an example of what happens when you try to draw a netline.
>
>
> AFAICT, this is rendered correctly except for the background color which has
> been replaced with #dcdad5 in some areas.
>
> This color is not defined in gEDA/gaf, so my guess is that it's the user
> interface's default color, and for some reason, an area which is requested
> to be redrawn which gschem assumes to be unchanged has actually been filled
> with the default color by the toolkit.
>
> This looks like an issue with Cairo/GTK on Mac.  Someone with access to Mac
> hardware would have to validate that this is actually the problem, and find
> a way to request that area not to be filled.
>
>
> This happened when GTK on the Mac switched from X11 to native rendering. My
> workaround is to run gschem under Ubuntu in a Vagrant virtual environment.
> Annoying.

Ok thanks John.

> Simply filling the area with gschem's background color won't do the trick as
> it would cause unwanted visual flickering; you'd have to actually prevent it
> from being filled with the wrong color in the first place.
>
> Roland
>
>
>
> John Doty              Noqsi Aerospace, Ltd.
>
> http://www.noqsi.com/
>
> jpd AT noqsi DOT com
>
>
>



-- 
Home
http://evanfoss.googlepages.com/
Work
http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/

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