

def __init__(self, viewer):
    self.viewer = viewer
    viewer.cr = CvHelp.CvContext(self.viewer.get_surface())
    self.pen = None
    self.brush = None
    self.font = None

dataset/ETHPy150Open ejeschke/ginga/ginga/cvw/CanvasRenderCv.py RenderContext.__init__/VarMisuse@18/20 `self`->`viewer`