Mail Archives: geda-user/2017/08/15/09:38:03
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> On Aug 15, 2017, at 4:37 AM, Roland Lutz <rlutz AT hedmen DOT org> wrote:
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> Hi Evan,
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> 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.
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> AFAICT, this is rendered correctly except for the background color =
which has been replaced with #dcdad5 in some areas.
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> 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.
>=20
> 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.
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> 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.
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> Roland
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>=20
John Doty Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd AT noqsi DOT com
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><br class=3D""><div><blockquote type=3D"cite" class=3D""><div =
class=3D"">On Aug 15, 2017, at 4:37 AM, Roland Lutz <<a =
href=3D"mailto:rlutz AT hedmen DOT org" class=3D"">rlutz AT hedmen DOT org</a>> =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><div =
class=3D"">Hi Evan,<br class=3D""><br class=3D"">On Tue, 15 Aug 2017, =
Evan Foss (<a href=3D"mailto:evanfoss AT gmail DOT com" =
class=3D"">evanfoss AT gmail DOT com</a>) [via <a =
href=3D"mailto:geda-user AT delorie DOT com" =
class=3D"">geda-user AT delorie DOT com</a>] wrote:<br class=3D""><blockquote =
type=3D"cite" class=3D"">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.<br class=3D""></blockquote><br =
class=3D"">AFAICT, this is rendered correctly except for the background =
color which has been replaced with #dcdad5 in some areas.<br =
class=3D""><br class=3D"">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.<br class=3D""><br class=3D"">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.<br =
class=3D""></div></div></blockquote><div><br class=3D""></div>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.</div><div><br class=3D""><blockquote type=3D"cite" =
class=3D""><div class=3D""><div class=3D""><br class=3D"">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.<br class=3D""><br =
class=3D"">Roland<br class=3D""><br class=3D""><br =
class=3D""></div></div></blockquote></div><br class=3D""><div class=3D"">
<span class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><span =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><p style=3D"margin: =
0.0px 0.0px 0.0px 0.0px" class=3D""><font face=3D"Helvetica" size=3D"3" =
style=3D"font: 12.0px Helvetica" class=3D"">John Doty<span =
class=3D"Apple-converted-space"> <span =
class=3D"Apple-converted-space"> </span><span =
class=3D"Apple-converted-tab"> <span =
class=3D"Apple-converted-space"> </span></span></span>Noqsi =
Aerospace, Ltd.</font></p><p style=3D"margin: 0.0px 0.0px 0.0px 0.0px" =
class=3D""><a href=3D"http://www.noqsi.com/" =
class=3D"">http://www.noqsi.com/</a></p><p style=3D"margin: 0.0px 0.0px =
0.0px 0.0px" class=3D""><font face=3D"Helvetica" size=3D"3" style=3D"font:=
12.0px Helvetica" class=3D""><a href=3D"mailto:jpd AT noqsi DOT com" =
class=3D"">jpd AT noqsi DOT com</a></font></p><br =
class=3D"Apple-interchange-newline"></span></span>
</div>
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