def roundCorners(rectangle, radius):
'''Get region for setting round edges mask'''
region = QRegion()
region += rectangle.adjusted(radius,0,-radius,0)
region += rectangle.adjusted(0,radius,-0,-radius)
corner = QRect(rectangle.topLeft(), QSize(radius*2,radius*2))
region += QRegion(corner, QRegion.Ellipse)
corner.moveTopRight(rectangle.topRight())
region += QRegion(corner, QRegion.Ellipse)
corner.moveBottomLeft(rectangle.bottomLeft())
region += QRegion(corner, QRegion.Ellipse)
corner.moveBottomRight(rectangle.bottomRight())
region += QRegion(corner, QRegion.Ellipse)
return region
