Create QtMainwindow with ctrl-c and cmd-q exit signals

app/Pipfile

@@ -7,6 +7,7 @@ verify_ssl = true
 
 [packages]
 pyside2 = "*"
+pyserial = "*"
 
 [requires]
 python_version = "3.7"

app/app.py

@@ -1,15 +1,92 @@
 import sys
 import random
-from PySide2 import QtCore, QtWidgets, QtGui
+import signal
+from PySide2 import Qt, QtCore, QtWidgets, QtGui
+
+import serial
+from serial.tools import list_ports
+
+from tools import set_background_color
+
+FPS = 20
+
+class MainWindow(QtWidgets.QMainWindow):
+    """
+    Class docstring
+    """
+
+    def __init__(self):
+        super(MainWindow, self).__init__()
+
+        self._running = True
+        exitShortcut = QtWidgets.QShortcut("CTRL+Q", self)
+        exitShortcut.activated.connect(self.close) # calls closeEvent
+
+        self._setupView()
+
+        self.timer = QtCore.QTimer()
+        self.timer.timeout.connect(self._update)
+        self.timer.start(1000/FPS)
+
+        self.popup = None
+
+    def _setupView(self):
+        """Initialize Main Window"""
+        # self.setWindowIcon(QtGui.QIcon('assets/icon.png'))
+        self.setGeometry(50, 50, 1600, 900)
+        self.setWindowTitle("Serial Console")
+        set_background_color(self, 'white')
+
+        # self.setCentralWidget(self.terminal.view)
+        # self._center()
+        # self.raise_()
+        # self.activateWindow()
+
+    def closeEvent(self, event):
+        """Handle window close event"""
+        if event:
+            # self.terminal.close()
+            event.accept()
+            if not self._running:
+                return
+            print('shutting down..')
+            self._running = False
+
+    def quit(self, _signal=None, _=None):
+        """ Signal Handler to quit the program """
+        self.close()
+
+    def _error_popup(self, msg):
+        QtWidgets.QMessageBox.critical(self, "Unexpected Error", msg)
+
+    def _center(self):
+        """ Center Window on current display """
+        frameGm = self.frameGeometry()
+        screen = QtWidgets.QApplication.desktop().screenNumber(QtWidgets.QApplication.desktop().cursor().pos())
+        centerPoint = QtWidgets.QApplication.desktop().screenGeometry(screen).center()
+        frameGm.moveCenter(centerPoint)
+        self.move(frameGm.topLeft())
+
+    def _update(self):
+        """ Gui Thread poll """
+        if not self._running:
+            # not running, pass update
+            self.close()
+            return
+        pass
 
 class MyWidget(QtWidgets.QWidget):
     def __init__(self):
-        super().__init__()
+        super(MyWidget, self).__init__()
+
+        availablePorts = list_ports.comports()
+
+        portsString = ''.join([p.device + '\n' for p in availablePorts])
 
         self.hello = ["Hallo Welt", "Hei maailma", "Hola Mundo", "Привет мир"]
 
         self.button = QtWidgets.QPushButton("Click me!")
-        self.text = QtWidgets.QLabel("Hello World")
+        self.text = QtWidgets.QLabel(portsString)
         self.text.setAlignment(QtCore.Qt.AlignCenter)
 
         self.layout = QtWidgets.QVBoxLayout()
@@ -20,6 +97,8 @@ def __init__(self):
         self.button.clicked.connect(self.magic)
 
 
+
+
     def magic(self):
         self.text.setText(random.choice(self.hello))
 
@@ -28,7 +107,13 @@ def magic(self):
     app = QtWidgets.QApplication([])
 
     widget = MyWidget()
-    widget.resize(800, 600)
-    widget.show()
 
-    sys.exit(app.exec_())
+    window = MainWindow()
+    window.setCentralWidget(widget)
+
+    window.show()
+    signal.signal(signal.SIGINT, window.quit)
+    # signal.signal(signal.SIGINT, signal.SIG_DFL)
+
+    if sys.flags.interactive != 1:
+        sys.exit(app.exec_())