0603

gui.py

@@ -4,12 +4,16 @@ from tkinter import ttk
 from PIL import Image, ImageTk
 import numpy as np
 import subprocess
-from gesture_recognition import start_recognition, stop_recognition, release_camera, keep_running, reset_hand_detection
+from gesture_recognition import start_recognition, stop_recognition, release_camera, reset_hand_detection
 
 WINDOW_WIDTH = 800
 WINDOW_HEIGHT = 705
 main_launched = False
 status_label = None
+root = None
+popup_open = False
+paused = False
+ten_fingers_detected = False
 
 def main():
     """显示欢迎屏幕"""
@@ -83,11 +87,12 @@ def show_main_screen():
 
 def start_thread(root, canvas, status_label):
     """启动识别线程"""
-    global keep_running, paused, popup_open
+    global paused, popup_open, ten_fingers_detected
-    if not keep_running:
+    if not paused:
         status_label.config(text="正在识别...")
         paused = False
         popup_open = False
+        ten_fingers_detected = False
         threading.Thread(target=lambda: start_recognition(callback=lambda fingers, img: root.after(0, update_canvas, canvas, fingers, img))).start()
 
 def stop_recognition_with_label(status_label):
@@ -100,10 +105,14 @@ def exit_program():
     global window
     stop_recognition()
     release_camera()
-    window.destroy()
+    if window is not None:
+        window.destroy()
+    window = None
 
 def update_canvas(canvas, fingers, img):
     """更新画布显示图像或处理手指数"""
+    if root is None or not root.winfo_exists():
+        return
     if isinstance(img, np.ndarray):
         img = Image.fromarray(img)
         imgtk = ImageTk.PhotoImage(image=img)
@@ -114,15 +123,15 @@ def update_canvas(canvas, fingers, img):
 
 def handle_finger_detection(finger_count):
     """处理检测到的手指数"""
-    global paused, popup_open, main_launched
+    global paused, popup_open, main_launched, ten_fingers_detected
     if finger_count == 10 and not main_launched:
         main_launched = True
+        ten_fingers_detected = True
         launch_main_script()
-    elif not popup_open:
+    elif finger_count == 5 and not ten_fingers_detected and not popup_open:
-        if finger_count == 5:
+        paused = True
-            paused = True
+        popup_open = True
-            popup_open = True
+        show_stop_recognition_window()
-            show_stop_recognition_window()
 
 def launch_main_script():
     """启动 main.py 脚本"""
@@ -146,7 +155,7 @@ def show_stop_recognition_window():
         popup_open = False
         stop_window.destroy()
 
-    if root and root.winfo_exists():
+    if root is not None and root.winfo_exists():
         stop_window = Toplevel(root)
         stop_window.title("停止识别")