painter.py 文件源码

def __init__(self, master, image):
        Canvas.__init__(self, master, width=image.size[0], height=image.size[1])

        # fill the canvas
        self.tile = {}
        self.tilesize = tilesize = 32
        xsize, ysize = image.size
        for x in range(0, xsize, tilesize):
            for y in range(0, ysize, tilesize):
                box = x, y, min(xsize, x+tilesize), min(ysize, y+tilesize)
                tile = ImageTk.PhotoImage(image.crop(box))
                self.create_image(x, y, image=tile, anchor=NW)
                self.tile[(x, y)] = box, tile

        self.image = image

        self.bind("<B1-Motion>", self.paint)