add part 1

part1.py

@@ -0,0 +1,69 @@
+import sys
+import gi
+
+gi.require_version('Gtk', '4.0')
+gi.require_version('Adw', '1')
+from gi.repository import Gtk, Adw
+
+
+class MainWindow(Gtk.ApplicationWindow):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+        self.set_default_size(600, 250)
+        self.set_title("MyApp")
+
+        # Main layout containers
+        self.box1 = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
+        self.box2 = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
+        self.box3 = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
+
+        self.set_child(self.box1)  # Horizontal box to window
+        self.box1.append(self.box2)  # Put vert box in that box
+        self.box1.append(self.box3)  # And another one, empty for now
+
+        # Add a button
+        self.button = Gtk.Button(label="Hello")
+        self.button.connect('clicked', self.hello)
+        self.box2.append(self.button)  # But button in the first of the two vertical boxes
+
+        # Add a check button
+        self.check = Gtk.CheckButton(label="And goodbye?")
+        self.box2.append(self.check)
+
+        # Add a box containing a switch and label
+        self.switch_box = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
+        self.switch_box.set_spacing(5)
+
+        self.switch = Gtk.Switch()
+        self.switch.set_active(True)  # Let's default it to on
+        self.switch.connect("state-set", self.switch_switched)  # Lets trigger a function on state change
+
+        self.label = Gtk.Label(label="A switch")
+
+        self.switch_box.append(self.switch)
+        self.switch_box.append(self.label)
+        self.box2.append(self.switch_box)
+
+    def switch_switched(self, switch, state):
+        print(f"The switch has been switched {'on' if state else 'off'}")
+
+    def hello(self, button):
+        print("Hello world")
+        if self.check.get_active():
+            print("Goodbye world!")
+            self.close()
+
+
+class MyApp(Adw.Application):
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+        self.connect('activate', self.on_activate)
+
+    def on_activate(self, app):
+        self.win = MainWindow(application=app)
+        self.win.present()
+
+
+app = MyApp(application_id="com.example.GtkApplication")
+app.run(sys.argv)