添加了 消息列表弹窗(系统状态消息、预警消息)，以及存储消息的数据库

controller/main_controller.py

@@ -7,15 +7,23 @@ from .camera_controller import CameraController
 from .bottom_control_controller import BottomControlController
 from .hopper_controller import HopperController
 
+from service.msg_recorder import MessageRecorder
+
 class MainController:
     def __init__(self):
         # 主界面
         self.main_window = MainWindow()
+
+        self.msg_recorder = MessageRecorder()
+        self.msg_recorder.normal_record("开始自动智能浇筑系统")
         
         # 初始化子界面和控制器
         self._initSubViews()
         self._initSubControllers()
 
+        # 连接信号
+        self.__connectSignals()
+
     def showMainWindow(self):
         self.main_window.showFullScreen()
         # self.main_window.show()
@@ -44,4 +52,15 @@ class MainController:
 
 
     def _initSubViews(self):
-        pass
+        pass
+        
+
+    def __connectSignals(self):
+        self.main_window.about_to_close.connect(self.handleMainWindowClose) # 处理主界面关闭
+
+    def handleMainWindowClose(self):
+        """主界面关闭"""
+        self.msg_recorder.normal_record("关闭自动智能浇筑系统")
+        # 停止系统底部控制器中的线程
+        if hasattr(self, 'bottom_control_controller'):
+            self.bottom_control_controller.stop_threads()