from PIL import Image
class View:

    def __init__(self, parent, size, center, **kwargs):
        self.size = size
        self.center = center
        self.bkg_im = self._init_im()

        self.ui = None
        self.init_ui(parent)

        self.update_weight(0.0)

    
    def init_ui(self, parent):
        pass

    def _init_im(self):
        return Image.new('1', self.size, 'white')
    
    def update_weight(self,
                      weight: float) -> None:
        raise NotImplementedError()