use Qt signals to connect to gui

src/pyside6/gui_pyside6.py

@@ -4,6 +4,7 @@ from src.data import Message, compile_regex
 from src.pyside6.trade_widget import TradeCollection
 from PySide6 import QtCore
 from PySide6.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QTabWidget
+import qdarktheme
 
 
 class MainWindow(QMainWindow):
@@ -22,6 +23,7 @@ class MainWindow(QMainWindow):
         self.main_widget.tabCloseRequested.connect(self.del_tab)
         self.setCentralWidget(self.main_widget)
 
+    @QtCore.Slot()
     def new_trade(self, message: Message):
         if message.trade:
             unique_item = message.trade.unique_item()
@@ -48,6 +50,14 @@ class MainWindow(QMainWindow):
             self.hide()
 
 
+def start_app():
+    app = QApplication(sys.argv)
+    qdarktheme.setup_theme()
+    app.setStyle('Material')
+
+    window = MainWindow()
+    return app, window
+
 if __name__ == "__main__":
     conf = config.read_config(r'config.yaml')
     compile_regex(conf)
@@ -60,16 +70,13 @@ if __name__ == "__main__":
     message = Message.from_text(text)
     message2 = Message.from_text(text2)
     message3 = Message.from_text(text3)
-    app = QApplication(sys.argv)
-    app.setStyle('Material')
-
-    window = MainWindow()
     assert message
     assert message2
     assert message3
+    app, window = start_app()
     window.new_trade(message)
     window.new_trade(message)
     window.new_trade(message2)
     window.new_trade(message3)
-
     app.exec()
+