First version upload

src/main.py

@@ -0,0 +1,68 @@
+# main.py
+#
+# Copyright 2024 Unknown
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+import sys
+import gi
+
+gi.require_version('Gtk', '4.0')
+gi.require_version('Adw', '1')
+
+from gi.repository import Gtk, Gio, Adw
+from .window import AlpacaWindow
+
+class AlpacaApplication(Adw.Application):
+    """The main application singleton class."""
+
+    def __init__(self):
+        super().__init__(application_id='com.jeffser.Alpaca',
+                         flags=Gio.ApplicationFlags.DEFAULT_FLAGS)
+        self.create_action('quit', lambda *_: self.quit(), ['<primary>q'])
+        self.create_action('about', self.on_about_action)
+        self.create_action('preferences', self.on_preferences_action)
+
+    def do_activate(self):
+        win = self.props.active_window
+        if not win:
+            win = AlpacaWindow(application=self)
+        win.present()
+
+    def on_about_action(self, widget, _):
+        about = Adw.AboutWindow(transient_for=self.props.active_window,
+            application_name='Alpaca',
+            application_icon='com.jeffser.Alpaca',
+            developer_name='Jeffry Samuel Eduarte Rojas',
+            version='0.1.0',
+            developers=['Jeffser'],
+            copyright='© 2024 Jeffser')
+        about.present()
+
+    def on_preferences_action(self, widget, _):
+        print('app.preferences action activated')
+
+    def create_action(self, name, callback, shortcuts=None):
+        action = Gio.SimpleAction.new(name, None)
+        action.connect("activate", callback)
+        self.add_action(action)
+        if shortcuts:
+            self.set_accels_for_action(f"app.{name}", shortcuts)
+
+
+def main(version):
+    app = AlpacaApplication()
+    return app.run(sys.argv)