pyobjc_appkit_macos_gui_window_with_clickable_button.py

1from Cocoa import (
2    NSApplication,
3    NSApp,
4    NSWindow,
5    NSWindowStyleMaskTitled,
6    NSWindowStyleMaskClosable,
7    NSWindowStyleMaskResizable,
8    NSBackingStoreTypeBuffered,
9    NSRect,
10    NSPoint,
11    NSSize,
12    NSButton,
13    NSBezelStyleRounded,
14    NSObject,
15)
16import objc
17
18class AppDelegate(NSObject):
19    def applicationDidFinishLaunching_(self, notification):
20        # Create a window
21        rect = NSRect(NSPoint(100, 100), NSSize(300, 200))
22        self.window = NSWindow.alloc().initWithContentRect_styleMask_backing_defer_(
23            rect,
24            NSWindowStyleMaskTitled | NSWindowStyleMaskClosable | NSWindowStyleMaskResizable,
25            NSBackingStoreTypeBuffered,
26            False
27        )
28        self.window.setTitle_("PyObjC Quickstart")
29        
30        # Create a button
31        button = NSButton.alloc().initWithFrame_(NSRect(NSPoint(100, 80), NSSize(100, 40)))
32        button.setTitle_("Click Me")
33        button.setBezelStyle_(NSBezelStyleRounded)
34        button.setTarget_(self)
35        button.setAction_(objc.selector(self.buttonClicked_, signature=b"v@:@"))
36        
37        self.window.contentView().addSubview_(button)
38        self.window.makeKeyAndOrderFront_(None)
39        print("Application launched!")
40
41    def buttonClicked_(self, sender):
42        print("Button was clicked!")
43
44def main():
45    app = NSApplication.sharedApplication()
46    delegate = AppDelegate.alloc().init()
47    app.setDelegate_(delegate)
48    app.run()
49
50if __name__ == "__main__":
51    main()