Re: GORM and NSCollectionView

[Alessandro Sangiuliano]

Il 19/03/2015 22:19, Fred Kiefer ha scritto:
> Am 17.03.2015 um 14:17 schrieb Alessandro Sangiuliano:
> > Il 17/03/2015 09:53, Riccardo Mottola ha scritto:
> > > Fred Kiefer wrote:
> > > > I just tried with 31 students and the flickering is horrible, but it
> > > > stops as soon as I let go of the window. Which Window manager are you
> > > > using?
> > > I am running windowmaker and I must say that flickering during resize
> > > is quite bad for may windows and different applications. This both
> > > with the art backend as with the cairo backend.
> > I'm using Window Maker too.
> > Did you tried with more than 31? For e.g. 100? The flickering will
> > become just worse.
> > However the flickering is happening with whatever window manager you wil
> > use. I also tried to make gnustep to handle windows but I don't remember
> > if it happens, I'll try as soon as I can again and report back (but I
> > strongly think that was yes, it was flickering too).
> >
> > Actually I'm on a train, can you suggest me what are the files that are
> > handling double buffering (X11 relative) in -back?
> Even with a lot more subelements the flickering stops as soon as I
> finish the resize. But with plenty of students I sometimes end up with a
> corrupted display that only gets fixed when I scroll in the window.


The same is happening here for the corrupted display... I just was 
testing and thinking on how to report back this problem. I mean, when I 
add  a lot of students, then resize the window , subelements overlaps on 
other subelements, corrupting the view, then scrolling, fix the 
corrupted view. I think you was talking about this behavior right?

The flickering also stops when I finish the resize; however the 
flickering during the resize should never happen, as it doesn't happen 
on other UI toolkit. I'd like to see and understand, as starting point, 
where the problem occurs.

I have no Windows/GNUstep env, to try if the flickering happens there too.
> Fred
>
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Alex.