When the QPrinter is initalized then it will set up page margins based
on the default paper size. If the paper size is changed to be a custom
one then it should disregard the margins for the default paper size.
If the page margins are set explicitly beforehand then it will use these
page margins.
Change-Id: Ic535c3a80b8b217dbd5eb5f4fb2cbc0ab1354563
Reviewed-by: Titta Heikkala <titta.heikkala@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>