[Development] Why on Linux using FreeType engine fonts are rendered in 72 dpi instead of Screen DPI?

[Jason H]

+1. Make sure that you are accounting for the full font height, see QFontMetrics::ascent() and descent()


> Sent: Wednesday, October 17, 2018 at 1:23 PM
> From: "Allan Sandfeld Jensen" <kde at carewolf.com>
> To: development at qt-project.org
> Subject: Re: [Development] Why on Linux using FreeType engine fonts are rendered in 72 dpi instead of Screen DPI?
>
> On Mittwoch, 17. Oktober 2018 19:10:45 CEST Tomasz Olszak wrote:
> > Could you please try example I sent on Linux and explain why font size
> > doesn't match rectangle size? Maybe the ft font engine has bug?
> > 
> Try putting a capital Å or any other capital with accents in your example, and 
> you will see that it fits snugly.
> 
> Though it should be noted fonts are a bit inconsistent in what they consider 
> their heights, some use the capital-height as their height, some use the 
> maximum including accents. I believe we normally always render text with the 
> leading on top, so there is room for all the Latin-1 characters and the 
> results are always the same.
> 
> 'Allan
> 
> 
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