import tkinter as tk
from tkinter import colorchooser, simpledialog
import win32com.client
import pythoncom
from comtypes import COMError
import json
import os
# --- 配置文件管理 ---
CONFIG_FILE = "ppt_timer_config.json"
class ConfigManager:
def __init__(self):
self.default_config = {
"x": 200,
"y": 200,
"font_size": 48,
"font_color": "#FF0000",
"bg_color": "#000000",
"alpha": 0.85,
"duration_sec": 300
}
self.config = self.load()
def load(self):
if os.path.exists(CONFIG_FILE):
try:
with open(CONFIG_FILE, "r", encoding="utf-8") as f:
data = json.load(f)
# 合并配置，防止旧配置文件缺少新字段
return {**self.default_config, **data}
except Exception as e:
print(f"Config load error: {e}")
pass
return self.default_config.copy()
def save(self):
try:
with open(CONFIG_FILE, "w", encoding="utf-8") as f:
json.dump(self.config, f, indent=4)
except Exception as e:
print(f"Config save error: {e}")
# --- 主程序 ---
class PPTAutoTimer:
def __init__(self, root):
self.root = root
self.root.title("PPT Timer")
self.cfg = ConfigManager()
# --- 状态变量 ---
self.time_left = self.cfg.config["duration_sec"]
self.is_running = False
self.is_ppt_playing = False
self.is_overtime = False
self.overtime_seconds = 0
# --- COM 对象缓存 ---
self.ppt_app = None
# --- UI 初始化 ---
self.setup_window()
self.create_widgets()
# 初始调整窗口大小
self.root.after(100, self.adjust_window_size)
# --- 启动状态监测 (使用 after 代替 threading) ---
self.check_ppt_status()
def setup_window(self):
self.root.overrideredirect(True)
self.root.attributes('-topmost', True)
self.root.attributes('-alpha', self.cfg.config["alpha"])
self.root.configure(bg=self.cfg.config["bg_color"])
# 尝试设置初始位置
try:
self.root.geometry(f"+{self.cfg.config['x']}+{self.cfg.config['y']}")
except:
pass
self.root.bind("<ButtonPress-1>", self.start_move)
self.root.bind("<B1-Motion>", self.do_move)
self.root.bind("<Button-3>", self.show_menu)
def create_widgets(self):
self.label = tk.Label(
self.root,
text="00:00",
font=("Microsoft YaHei", self.cfg.config["font_size"], "bold"),
fg=self.cfg.config["font_color"],
bg=self.cfg.config["bg_color"],
bd=0,
padx=0,
pady=0
)
self.label.pack()
self.menu = tk.Menu(self.root, tearoff=0)
self.menu.add_command(label="设置时长 (分:秒)", command=self.set_duration)
self.menu.add_command(label="设置字体大小", command=self.set_font_size)
self.menu.add_command(label="设置字体颜色", command=self.pick_font_color)
self.menu.add_command(label="设置背景颜色", command=self.pick_bg_color)
self.menu.add_command(label="设置透明度", command=self.set_opacity)
self.menu.add_separator()
self.menu.add_command(label="退出", command=self.exit_app)
def exit_app(self):
# 保存当前窗口位置
try:
self.cfg.config['x'] = self.root.winfo_x()
self.cfg.config['y'] = self.root.winfo_y()
self.cfg.save()
except:
pass
self.root.destroy()
def set_opacity(self):
current_percent = int(self.cfg.config["alpha"] * 100)
val = simpledialog.askinteger("设置透明度", "请输入不透明度百分比 (10-100):", initialvalue=current_percent, minvalue=10, maxvalue=100, parent=self.root)
if val is not None:
alpha_value = val / 100.0
self.cfg.config["alpha"] = alpha_value
self.cfg.save()
self.root.attributes('-alpha', alpha_value)
# --- 核心逻辑：监测 PPT (优化版：单线程轮询) ---
def check_ppt_status(self):
is_playing_now = False
try:
# 1. 尝试获取或复用 PPT 对象
if self.ppt_app is None:
self.ppt_app = win32com.client.GetActiveObject("PowerPoint.Application")
# 2. 检查放映窗口数量
# 注意：这里需要确保 Count 属性存在，防止极罕见的竞态条件
if self.ppt_app.SlideShowWindows and self.ppt_app.SlideShowWindows.Count > 0:
is_playing_now = True
except (COMError, pythoncom.com_error, AttributeError):
# 如果 PPT 没开，或者 COM 连接断开，重置对象引用
self.ppt_app = None
is_playing_now = False
except Exception:
# 捕获其他未知错误，防止程序崩溃
is_playing_now = False
# --- 状态机逻辑 ---
if is_playing_now and not self.is_ppt_playing:
# 状态：从 "没播放" 变为 "正在播放" -> 启动计时
self.is_ppt_playing = True
self.start_timer()
elif not is_playing_now and self.is_ppt_playing:
# 状态：从 "正在播放" 变为 "没播放" -> 停止/重置
self.is_ppt_playing = False
self.reset_timer()
# 无论状态如何，1秒后再次检查 (1000ms)
self.root.after(1000, self.check_ppt_status)
def start_timer(self):
self.is_running = True
self.is_overtime = False
self.overtime_seconds = 0
self.time_left = self.cfg.config["duration_sec"]
self.update_display()
self.run_timer_step()
def run_timer_step(self):
if self.is_running:
# 只有当 PPT 还在播放时才继续计时
if self.is_ppt_playing:
if self.time_left > 0:
# --- 倒计时阶段 ---
self.time_left -= 1
self.is_overtime = False
else:
# --- 超时阶段 ---
self.is_overtime = True
self.overtime_seconds += 1
self.update_display()
# 1秒后继续下一步
self.root.after(1000, self.run_timer_step)
else:
# 如果计时器还在运行但 PPT 停止了（通过菜单强制停止等情况）
pass
def reset_timer(self):
self.is_running = False
self.overtime_seconds = 0
# 这里的 update_display 是为了让界面立即变回 00:00 或初始状态
# 如果希望 PPT 退出后保留最后的时间，可以去掉下面这行
self.update_display()
def update_display(self):
if self.is_overtime:
# --- 超时显示逻辑 ---
mins, secs = divmod(self.overtime_seconds, 60)
time_str = f"+{mins:02d}:{secs:02d}"
else:
# --- 倒计时显示逻辑 ---
mins, secs = divmod(self.time_left, 60)
time_str = f"{mins:02d}:{secs:02d}"
self.label.config(text=time_str, fg=self.cfg.config["font_color"])
self.adjust_window_size()
def adjust_window_size(self):
try:
self.label.update_idletasks()
text_width = self.label.winfo_reqwidth()
text_height = self.label.winfo_reqheight()
padding_x = 20
padding_y = 10
final_width = text_width + padding_x
final_height = text_height + padding_y
# 获取当前坐标以保持位置不变
x = self.root.winfo_x()
y = self.root.winfo_y()
final_width = max(final_width, 50)
final_height = max(final_height, 30)
self.root.geometry(f"{final_width}x{final_height}+{x}+{y}")
except:
pass
# --- 交互功能 ---
def set_duration(self):
input_str = simpledialog.askstring("设置时长", "请输入倒计时时长 (支持格式 MM:SS 或纯秒数):", initialvalue=str(self.cfg.config["duration_sec"]), parent=self.root)
if input_str:
try:
input_str = input_str.replace("：", ":")
if ":" in input_str:
m, s = map(int, input_str.split(":"))
total_seconds = m * 60 + s
else:
total_seconds = int(input_str)
if total_seconds > 0:
self.cfg.config["duration_sec"] = total_seconds
self.cfg.save()
# 如果当前没有在运行，立即更新显示
if not self.is_running:
self.time_left = total_seconds
self.is_overtime = False
self.overtime_seconds = 0
self.update_display()
except ValueError:
pass
def set_font_size(self):
val = simpledialog.askinteger("字体大小", "输入字体大小 (像素):", initialvalue=self.cfg.config["font_size"], minvalue=10, maxvalue=200, parent=self.root)
if val:
self.cfg.config["font_size"] = val
self.label.config(font=("Microsoft YaHei", val, "bold"))
self.cfg.save()
self.adjust_window_size()
def pick_font_color(self):
color = colorchooser.askcolor(color=self.cfg.config["font_color"], parent=self.root)[1]
if color:
self.cfg.config["font_color"] = color
self.label.config(fg=color)
self.cfg.save()
def pick_bg_color(self):
color = colorchooser.askcolor(color=self.cfg.config["bg_color"], parent=self.root)[1]
if color:
self.cfg.config["bg_color"] = color
self.root.configure(bg=color)
self.label.config(bg=color)
self.cfg.save()
def show_menu(self, event):
self.menu.tk_popup(event.x_root, event.y_root)
def start_move(self, event):
self.x = event.x
self.y = event.y
def do_move(self, event):
deltax = event.x - self.x
deltay = event.y - self.y
x = self.root.winfo_x() + deltax
y = self.root.winfo_y() + deltay
self.root.geometry(f"+{x}+{y}")
if __name__ == "__main__":
# 尝试处理 DPI 设置 (兼容 Win7/10/11)
try:
from ctypes import windll
# SetProcessDpiAwareness(1) -> SYSTEM_DPI_AWARE
windll.shcore.SetProcessDpiAwareness(1)
except Exception:
# Win7 可能没有 shcore 或者权限不足，忽略错误
pass
root = tk.Tk()
app = PPTAutoTimer(root)
root.mainloop()