Add About window and basic commands to MenuBar (#113)

* Initial commit for about_window.py

* Add some basic actions to the MenuBar

* Fix keyboard shortcuts

* Fix path to icon for Windows

src/ui/widgets/menubar.py

@@ -1,5 +1,8 @@
 ''' app/ui/widgets/menubar.py '''
-from PyQt6.QtWidgets import QMenuBar
+import sys
+
+from PyQt6.QtGui import QAction
+from PyQt6.QtWidgets import QMenuBar, QApplication
 
 
 class MenuBar(QMenuBar):
@@ -12,12 +15,43 @@ class MenuBar(QMenuBar):
 
     def __init__(self, parent=None) -> None:
         super().__init__(parent)
+
+        # setup menus
         file_menu = self.addMenu("File")
         # edit_menu = self.addMenu("Edit")
         # view_menu = self.addMenu("View")
-        # help_menu = self.addMenu("Help")
+        help_menu = self.addMenu("Help")
 
-        # Add actions to the menus
-        # file_menu.addAction(self.parent().topbar.actions_call["Open"]) # type: ignore
-        # file_menu.addAction(self.parent().topbar.actions_call["Save"]) # type: ignore
-        # file_menu.addAction(self.parent().topbar.actions_call["Exit"]) # type: ignore
+        # --file menu--
+        # new job
+        new_job_action = QAction("New Job...", self)
+        new_job_action.setShortcut(f'Ctrl+N')
+        new_job_action.triggered.connect(self.new_job)
+        file_menu.addAction(new_job_action)
+        # settings
+        settings_action = QAction("Settings...", self)
+        settings_action.triggered.connect(self.show_settings)
+        settings_action.setShortcut(f'Ctrl+,')
+        # file_menu.addAction(settings_action)  # todo: enable once we have a setting screen
+        # exit
+        exit_action = QAction('&Exit', self)
+        exit_action.setShortcut('Ctrl+Q')
+        exit_action.triggered.connect(QApplication.instance().quit)
+        file_menu.addAction(exit_action)
+
+        # --help menu--
+        about_action = QAction("About", self)
+        about_action.triggered.connect(self.show_about)
+        help_menu.addAction(about_action)
+
+    def new_job(self):
+        self.parent().new_job()
+
+    def show_settings(self):
+        pass
+
+    @staticmethod
+    def show_about():
+        from src.ui.about_window import AboutDialog
+        dialog = AboutDialog()
+        dialog.exec()