[Qt-interest] bounding box of rendered text

[Alessandro Portale]

Hi,

in order to get the pixel size of strings, rendered in a particular 
font, you can use QFontMetrics::size()
    http://doc.qt.nokia.com/latest/qfontmetrics.html#size

If you do not specify a font when calling GLWidget::renderText(), you 
get the right font metrics object from QApplication
    http://doc.qt.nokia.com/latest/qapplication.html#fontMetrics

If you specify a font, you need to use your font as parameter for the 
QFontMetrics constructor.
    http://doc.qt.nokia.com/latest/qfontmetrics.html#QFontMetrics

Alessandro

Yifei Li schrieb:
> Hi all,
> 
> I use GLWidget::renderText to display strings in a glwidget, and I want to get the size (in pixels) of a rendered string.
> 
> How should I do that?
> 
> Thanks
> 
> Yifei