[Qt-interest] Qt does not provide a way to get a font's "em" size?

[Nikos Chantziaras]

AFAIK, the x-height of a font has nothing to do with the em size.  A 
fall-back for the em size would actually be pixelSize().  But it's only 
a fall-back.

On 03/04/2010 04:14 PM, Dan White wrote:
> How about using xHeight ?
>
> <http://doc.trolltech.com/4.6/qfontmetrics.html#xHeight>
>
> “Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us.”
> Bill Waterson (Calvin&  Hobbes)
>
> ----- Nikos Chantziaras<realnc at arcor.de>  wrote:
>> I need to get the "em" size of fonts.  This is a design property of
>> scalable fonts.  QFontInfo and QFontMetrics don't seem to offer this
>> information and I would have to use FreeType directly to query it
>> (QFont::freetypeFace()).  That's not a good solution here since the
>> application needs to stay cross platform and still be able to get the em
>> size.
>>
>> Is there any portable solution within Qt to get to that information?
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