#!/usr/bin/env python3

# -*- coding: utf-8 -*-

__author__ = 'ipetrash'

# SOURCE: Design Patterns: Bridge — Мост

# SOURCE: https://ru.wikipedia.org/wiki/Мост_(шаблон_проектирования)

from abc import ABC, abstractmethod

class Drawer(ABC):

@abstractmethod

def draw_circle(self, x: int, y: int, radius: int):

pass

class SmallCircleDrawer(Drawer):

RADIUS_MULTIPLIER = 0.25

def draw_circle(self, x: int, y: int, radius: int):

print(f"Small circle center = {x},{y} radius = {radius * self.RADIUS_MULTIPLIER}")

class LargeCircleDrawer(Drawer):

RADIUS_MULTIPLIER = 10

def draw_circle(self, x: int, y: int, radius: int):

print(f"Large circle center = {x},{y} radius = {radius * self.RADIUS_MULTIPLIER}")

class Shape(ABC):

def __init__(self, drawer: Drawer):

self._drawer = drawer

@abstractmethod

def draw(self):

pass

@abstractmethod

def enlarge_radius(self, multiplier: int):

pass

class Circle(Shape):

def __init__(self, x: int, y: int, radius: int, drawer: Drawer):

super().__init__(drawer)

self._x = x

self._y = y

self._radius = radius

def draw(self):

self._drawer.draw_circle(self._x, self._y, self._radius)

def enlarge_radius(self, multiplier: int):

self._radius *= multiplier

def get_x(self) -> int:

return self._x

def get_y(self) -> int:

return self._y

def get_radius(self) -> int:

return self._radius

def set_x(self, x: int):

self._x = x

def set_y(self, y: int):

self._y = y

def set_radius(self, radius: int):

self._radius = radius

if __name__ == '__main__':

shapes = [

Circle(5, 10, 10, LargeCircleDrawer()),

Circle(20, 30, 100, SmallCircleDrawer()),

]

for x in shapes:

x.draw()

# Output

# Large circle center = 5,10 radius = 100

# Small circle center = 20,30 radius = 25.0