Qt: Check for a sane window geometry.
On Windows (and probably X11) it's possible to set an offscreen window
geometry. Add a rect_on_screen function to qt_ui_utils and use it as a
sanity check in MainWindow::loadWindowGeometry.
If this doesn't work well (e.g. if we end up with dueling Qt and GTK+
geometries) we might want to create separate Qt and GTK+ preferences.
Bug: 11568
Change-Id: Icde1181671770356e87f07d584894ec3148e1bd2
Reviewed-on: https://code.wireshark.org/review/11584
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Gerald Combs <gerald@wireshark.org>