self.lines[1].SetDimensions(pos.x, pos.y, 2, size.height)
self.lines[2].SetDimensions(pos.x + size.width - 2, pos.y, 2, size.height)
self.lines[3].SetDimensions(pos.x, pos.y + size.height - 2, size.width, 2)
self.lines[1].SetDimensions(pos.x, pos.y, 2, size.height)
self.lines[2].SetDimensions(pos.x + size.width - 2, pos.y, 2, size.height)
self.lines[3].SetDimensions(pos.x, pos.y + size.height - 2, size.width, 2)