Wobbling effect in a QLabel

[JulienMaille]

I have a problem with a QLabel displaying the processing time of my program. When the times changes between a 2 or 3 numbers values, it produce a wobbling label.
@Processing time 95 msec.
Processing time 105 msec.@
I tried to use tab and also padding with spaces:
@QString("Processing took\t%1\tmsec.").arg(elapsedTime)
QString("Processing took %1 msec.").arg(elapsedTime, -3)@
But it is still wobbling. I would avoid using a constant width font, so is there any way to avoid this wobbling effect?

[HuXiKa]

I would put the "XY msec" text in another label, and set it's alignment to Qt::AlignRight.

[JulienMaille]

I had this idea in mind but found it a bit dirty :p