[Interest] Qwt and upgrading to Qt 5

[Thiago Macieira]

On sexta-feira, 22 de março de 2013 11.39.16, K. Frank wrote:
> On Fri, Mar 22, 2013 at 10:34 AM, Uwe Rathmann <Uwe.Rathmann at tigertal.de> 
wrote:
> > On 03/21/2013 11:49 PM, K. Frank wrote:
> >> I am considering upgrading to Qt 5 (from Qt 4), but I also use qwt, and I
> >> am wondering whether I should expect any significant issues doing so.> 
> > On X11 you will see performance regressions as the X11 paint engine ( =
> > hardware accelerated rendering ) is gone. When working with remote
> > desktops Qt5 is almost a no-go.
> 
> I'm not using X11 at the moment, so it doesn't matter much to me,
> but this sounds like a significant issue.

Note that you will *not* see that regression if you're coming from Qt 4.8. The 
raster engine is the default in 4.8 already. The native engine was default in 
4.7 and before.

> > On QWS you might also run into regressions, but on all other platforms
> > Qt5/Widgets is more or less the same - meaning that you won't have many
> > problems ( and not much to win ).

There is no QWS in Qt 5. It's replaced with QPA.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center
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