menu/screensavers.py

#!/usr/bin/env python3

from time import strftime
from typing import Tuple

import pygame

from iboard import IBoard


class Screensaver(IBoard):
    def handle_event(self, _):
        pass


class ClockScreensaver(Screensaver):
    def __init__(self):
        self.font = pygame.freetype.SysFont(name="Sans", size=40)
        self.dx = 1
        self.dy = 1
        self.text_xy: Tuple[int, int] = (0, 0)

    def draw(self, screen: pygame.Surface, _):
        text = strftime("%H:%M:%S")
        screen.fill("black")
        pygame.Rect(0, 0, screen.get_width(), screen.get_height())
        text_rect = self.font.get_rect(text)
        if ((self.text_xy[0] + self.dx + text_rect.width) > screen.get_width()) or \
                ((self.text_xy[0] + self.dx) < 0):
            self.dx *= -1
        if ((self.text_xy[1] + self.dy + text_rect.height) > screen.get_height()) or \
                ((self.text_xy[1] + self.dy) < 0):
            self.dy *= -1
        self.text_xy = (self.text_xy[0] + self.dx, self.text_xy[1] + self.dy)
        text_pos = pygame.Rect(self.text_xy[0], self.text_xy[1],
                               text_rect.width, text_rect.height)
        self.font.render_to(screen, text_pos, text, fgcolor="pink")