def find_display_size(display: GameDisplay, view: QGraphicsView,
target_size: QSize) -> QSize:
max_width = None
max_height = None
min_width = min_height = 1
display_width = display.width()
display_height = display.height()
while True:
scene_size = view.contentsRect().size()
if scene_size.width() == target_size.width():
min_width = max_width = display_width
elif scene_size.width() < target_size.width():
min_width = display_width + 1
else:
max_width = display_width - 1
if scene_size.height() == target_size.height():
min_height = max_height = display_height
elif scene_size.height() < target_size.height():
min_height = display_height + 1
else:
max_height = display_height - 1
if max_width is None:
display_width *= 2
else:
display_width = (min_width + max_width) // 2
if max_height is None:
display_height *= 2
else:
display_height = (min_height + max_height) // 2
if min_width == max_width and min_height == max_height:
return QSize(display_width, display_height)
display.resize(display_width, display_height)
view.grab() # Force layout recalculation.
