render.py 文件源码

def _init_cairo(self):
        '''
        Initialize context and image
        '''
        sur = cairo.ImageSurface(cairo.FORMAT_ARGB32, SIZE, SIZE)
        ctx = cairo.Context(sur)
        ctx.scale(SIZE, SIZE)
        ctx.set_source_rgb(BACK, BACK, BACK)
        ctx.rectangle(0, 0, 1, 1)
        ctx.fill()

        self.sur = sur
        self.ctx = ctx