[Development] Updated high-DPI support for Qt 5.14

[Morten Sørvig]

> On 1 Oct 2019, at 23:18, Christoph Cullmann <christoph at cullmann.io> wrote:
> 
> Hi,
> 
> actually, unrelated to how one can configure the stuff, at the moment,
> I see still a lot of Qt internal rendering artifacts for fractional scaling.
> 
> See https://bugreports.qt.io/browse/QTBUG-66036
> 
> For some I made now hacky workarounds in KTextEditor, see https://bugs.kde.org/show_bug.cgi?id=390451
> 
> Some still remain for factors like 1.1 and text selections...
> 
> And one should think about if it is really a good idea to accept factors like 1.1
> and not round them to some at least 1 / 2^x factor that doesn't lead to interesting
> accumulating rounding errors. (in addition to the opt-out of fractional scaling at all)

I think we can do so, if needed. Which factor, and what is the trade-off between a small
or large factor?

Morten


> 
> Greetings
> Christoph
> 
> -- 
> Ignorance is bliss...
> https://cullmann.io | https://kate-editor.org
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