def focusInEvent(self, event):
"""work around a qt bug. See https://bugreports.qt-project.org/browse/QTBUG-32890
This can be reproduced as follows:
./kajongg.py --game=whatever --autoplay=SomeRuleset
such that the human player is the first one to discard a tile.
wait until the main screen has been built
click with the mouse into the middle of that window
press left arrow key
this will violate the assertion in GraphicsTileItem.keyPressEvent """
prev = self.focusItem()
QGraphicsScene.focusInEvent(self, event)
if prev and bool(prev.flags() & QGraphicsItem.ItemIsFocusable) and prev != self.focusItem():
self.setFocusItem(prev)
