MODE_RECTANGLE = 1
MODE_ELLIPSE = 2
MODE_ROUNDED_RECTANGLE = 3

MODE = MODE_RECTANGLE

ELLIPSE = False

def rounded_rectangle(draw, box, radius, color):
    l, t, r, b = box
    x = radius * 2
    z = radius
    draw.ellipse((l, t, l + x, t + x), color)
    draw.ellipse((r - x, t, r, t + x), color)
    draw.ellipse((l, b - x, l + x, b), color)
    draw.ellipse((r - x, b - x, r, b), color)
    draw.rectangle((l, t + z, r, b - z), color)
    draw.rectangle((l + z, t, r - z, b), color)

            if ELLIPSE:

            if MODE == MODE_ELLIPSE:

            elif MODE == MODE_ROUNDED_RECTANGLE:
                radius = (r - l) / 4
                rounded_rectangle(draw, box, radius, quad.color)