Actual width of checkbox element

[Kai Uwe Broulik]

Hi there,

I got a bug report [1] about that the popup width might get so small that the 
PM checkbox doesn't fit entirely.
Is there a way to determin the actual width of the checkbox including its 
label?
So I could do minimumWidth: Math.max( currentminimumwidth, checkboxwidth)
Or should I just use a fixed, say, 250px minimum width?

Best,
Kai Uwe

[1] https://bugs.kde.org/show_bug.cgi?id=323530