MainWindow.py

# -*- coding: utf-8 -*-
"""Python - PyGObject - GTK."""

import pathlib
import sys

import gi

gi.require_version(namespace="Gtk", version="4.0")
gi.require_version(namespace="Adw", version="1")

from gi.repository import Adw, Gio, Gtk

BASE_DIR = pathlib.Path(__file__).resolve().parent
sys.path.append(str(BASE_DIR.parent.parent.parent / "scripts"))

from blp import blp_to_ui

UI_FILE = BASE_DIR / "MainWindow.ui"
BLP_FILE = BASE_DIR / "MainWindow.blp"
blp_to_ui(file=BLP_FILE)


Adw.init()


@Gtk.Template(filename=UI_FILE)
class ExampleWindow(Adw.ApplicationWindow):
    __gtype_name__ = "ExampleWindow"

    def __init__(self, **kwargs):
        super().__init__(**kwargs)


class ExampleApplication(Adw.Application):
    def __init__(self):
        super().__init__(
            application_id="br.com.justcode.Gtk",
            flags=Gio.ApplicationFlags.DEFAULT_FLAGS,
        )

        self.create_action("quit", self.exit_app, ["<primary>q"])

    def do_activate(self):
        win = self.props.active_window
        if not win:
            win = ExampleWindow(application=self)
        win.present()

    def do_startup(self):
        Gtk.Application.do_startup(self)

    def do_shutdown(self):
        Gtk.Application.do_shutdown(self)

    def exit_app(self, action, param):
        self.quit()

    def create_action(self, name, callback, shortcuts=None):
        action = Gio.SimpleAction.new(name=name, parameter_type=None)
        action.connect("activate", callback)
        self.add_action(action=action)
        if shortcuts:
            self.set_accels_for_action(
                detailed_action_name=f"app.{name}",
                accels=shortcuts,
            )


if __name__ == "__main__":
    app = ExampleApplication()
    app.run(sys.argv)