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Re: Other graphic issues


From: Germán Arias
Subject: Re: Other graphic issues
Date: Tue, 06 Sep 2011 18:39:54 -0600

I will check the gorm files. Anyway I'm thinking reimplement the panel.
If I will add more elements in each release, will be so difficult
maintain the gorm file. Thanks.

On mar, 2011-09-06 at 22:47 +0200, Fred Kiefer wrote:
> I think Eric is correct here. I checked the Grom file and the buttons 
> are positioned on half pixels. We need to change the code to get more 
> reliable results here, but for now it seems easier to adjust FisicaLab.
> 
> Fred
> 
> On 06.09.2011 20:44, Eric Wasylishen wrote:
> > I haven't had a look at Fisicalab yet, but something which may or may not 
> > be related is the artifacting I get in GSTest/ImageSelection-test. It 
> > happens when moving the sliders to adjust the image size; the image can 
> > leave lines as it's being resized, but the same code works fine on OS X.
> >
> > The artifacting seems to to come from calling [aView 
> > setNeedsDisplayInRect:] with a non-integral rect. I suspect at some point 
> > the rect coordinates are being floor()'ed, which would be incorrect. If we 
> > mark a (possibly non-integral) region of a view as needing to be redrawn, 
> > at some point we'll need to compute a pixel aligned version that completely 
> > encloses the original rect.
> >
> > -Eric
> >
> > On 2011-09-05, at 3:47 AM, Fred Kiefer wrote:
> >
> >> On 05.09.2011 02:26, Germán Arias wrote:
> >>> Currently when I select an element in FisicaLab an ugly lines appears.
> >>> See attached image. I'm using cairo backend.
> >>
> >> I tried to reproduce this behaviour with Fisicalab 0.2.1 and current SVN 
> >> GNUstep code and failed to get these artefacts. I am using the cairo 
> >> backend as well.
> >>
> >> Could you please give some more details on how to reproduce this?
> 
> 
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