Hi all,
there seems to be a bug in MapControl::paintEvent(QPaintEvent evnt). If you put MapControl into a QScrollArea the shown map will be streched into evnt size.
I think it sould be doubleBuffer->size().
Please heve a look into uploaded patch. It seems do work correctly at my mashine (qt5).
Greetings
Mattes
fixed in latest rev 61
cheers!