QLabel: Resize font to contentsRect

[Ghal_Maraz]

I finally found the reason for this behavior in the function QLabelPrivate::documentRect in qlabel.cpp:

int m = indent;
if (m < 0 && q->frameWidth()) // no indent, but we do have a frame
    m = q->fontMetrics().width(QLatin1Char('x')) / 2 - margin;

int m = indent;
if (m < 0 && q->frameWidth()) // no indent, but we do have a frame
    m = q->fontMetrics().width(QLatin1Char('x')) / 2 - margin;

To copy to clipboard, switch view to plain text mode 

When the label's frameShape is set to StyledPanel, frameWidth returns 1.