kicad-developers team mailing list archive

[Dick Hollenbeck <dick@...>]

jean-pierre.charras@... wrote:
> emmedics4 a écrit :
> > --- In kicad-devel@ yahoogroups. com 
> > <mailto:kicad-devel%40yahoogroups.com>, Vesa Solonen <vsolonen@.. .> 
> > wrote:
> > >
> > > It seems using wxAutoBufferedPaint DC in OnPaint event as a Windows 7
> > > compositor fix introduces regression on Linux. All gui controls 
> > flicker on
> > > zoom and the performance is much worse with or without compositing.
> I am not sure wxAutoBufferedPaint is the problem under Linux, because 
> recent GTK libs are double buffered
> and wxAutoBufferedPaint is defined as wxPaintDC in this case (like 
> under macOSX).
> (in fact forcing wxPaintDC instead of wxAutoBufferedPaint does not 
> change the problem)
>
> I believe AUI creates the problem when repositionning scrool bars in 
> DrawPanel (a wxScrolledWindow).
> (Redraw commands like F3 key that do not change scrool bars do not 
> create flicker)
>
> Currently i cannot test pcbnew without -DKICAD_AUIMANAGER=ON and 
> -DKICAD_AUITOOLBAR=ON options
> because in this case some tool bars are not displayed under my Ubuntu 
> 9.10 version since a recent update.
> This is a very recent problem and i do not know what happens.

My layer widget work is going to require AUI support, so I wonder if we 
should simply cross the bridge into wxAUI land now and not look back.

> From my limited understanding of the MAC, it seems these two AUI 
settings have been needed for a Mac for some time now.

Dick