【教程】Python制作桌面时钟屏保

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目录

背景说明

运行效果

参考代码

背景说明

        有一个空闲的jetson和13.3寸的屏幕，闲着也是闲着，拿来显示时钟好了。浏览器显示在线时钟的方式直接占用80%的CPU，所以为了降低资源占用所以用Python写了个。

运行效果

        有待添加更多内容（本来想想把魔镜加进来，但发现jetson有很多包装不上，就放弃了）。按esc按键可以退出全屏。

参考代码

import pygame
import pygame.freetype
import time
import locale
from lunarcalendar import Converter, Solar

# 设置中国时间和语言环境
locale.setlocale(locale.LC_TIME, 'zh_CN.utf8')

# 初始化 Pygame
pygame.init()
screen = pygame.display.set_mode((0, 0), pygame.FULLSCREEN)
pygame.display.set_caption('Flip Clock with Date, Day, and Lunar Calendar')

# 使用支持中文的字体文件
font_path = 'SimHei.ttf'  # 确保将字体文件路径设置为正确的位置
date_font = pygame.freetype.Font(font_path, 50)
time_font = pygame.freetype.Font(font_path, 180)
lunar_font = pygame.freetype.Font(font_path, 30)
digit_font = pygame.freetype.Font(font_path, 180)

# 颜色和布局参数
background_color = (0, 0, 0)
digit_color = (200, 200, 200)
frame_color = (50, 50, 50)
frame_padding = 10
width, height = screen.get_width(), screen.get_height()
digit_width, digit_height = 150, 200
margin = 20
x_start = (width - 8 * digit_width - 7 * margin) // 2
y_start = (height - digit_height) // 2 + 50

# 初始化时钟
clock = pygame.time.Clock()
rendered_text_cache = {}

def draw_flip_clock(screen, current_time, current_date, lunar_date):
    screen.fill(background_color)

    # 渲染公历日期和星期几
    date_surface, date_rect = get_rendered_text(date_font, current_date, (255, 255, 255))
    date_rect.center = (screen.get_width() // 2, screen.get_height() // 4 - 50)
    screen.blit(date_surface, date_rect)

    # 渲染农历日期
    lunar_surface, lunar_rect = get_rendered_text(lunar_font, lunar_date, (255, 255, 255))
    lunar_rect.center = (screen.get_width() // 2, screen.get_height() // 4)
    screen.blit(lunar_surface, lunar_rect)

    # 渲染翻页时钟
    draw_flip_numbers(screen, current_time)

def draw_flip_numbers(screen, current_time):
    for i, char in enumerate(current_time):
        if char.isdigit():
            # 绘制背景框
            rect_x = x_start + i * (digit_width + margin)
            rect_y = y_start - frame_padding
            pygame.draw.rect(screen, frame_color, (rect_x, rect_y, digit_width, digit_height + 2 * frame_padding), border_radius=10)
            
            # 绘制数字
            digit_surface, digit_rect = get_rendered_text(digit_font, char, digit_color)
            digit_rect.center = (rect_x + digit_width // 2, y_start + digit_height // 2)
            screen.blit(digit_surface, digit_rect)
        else:
            # 绘制冒号，不加背景框
            colon_surface, colon_rect = get_rendered_text(digit_font, char, digit_color)
            colon_rect.center = (x_start + i * (digit_width + margin) + digit_width // 2, y_start + digit_height // 2)
            screen.blit(colon_surface, colon_rect)

def get_rendered_text(font, text, color):
    if text not in rendered_text_cache:
        rendered_text_cache[text] = font.render(text, color)
    return rendered_text_cache[text]

def get_time_strings():
    now = time.localtime()
    current_time = time.strftime('%H:%M:%S', now)
    current_date = time.strftime('%Y-%m-%d %A', now)
    solar = Solar(now.tm_year, now.tm_mon, now.tm_mday)
    lunar = Converter.Solar2Lunar(solar)
    lunar_date = f"农历 {lunar.year}年{lunar.month}月{lunar.day}日"
    return current_time, current_date, lunar_date

def main():
    running = True
    while running:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                running = False
            elif event.type == pygame.KEYDOWN:
                if event.key == pygame.K_ESCAPE:
                    running = False

        current_time, current_date, lunar_date = get_time_strings()
        draw_flip_clock(screen, current_time, current_date, lunar_date)
        pygame.display.flip()

        time.sleep(0.5)

    pygame.quit()

if __name__ == '__main__':
    main()