mirror of
https://github.com/Apress/foundations-of-pygtk-development.git
synced 2025-07-21 03:41:10 +02:00
134 lines
4.8 KiB
Python
134 lines
4.8 KiB
Python
#!/usr/bin/python3
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import sys
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import gi
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gi.require_version('Gtk', '3.0')
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from gi.repository import GLib, Gio, Gtk
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# This would typically be its own file
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MENU_XML="""
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<?xml version="1.0" encoding="UTF-8"?>
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<interface>
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<menu id="app-menu">
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<section>
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<attribute name="label" translatable="yes">Change label</attribute>
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<item>
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<attribute name="action">win.change_label</attribute>
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<attribute name="target">String 1</attribute>
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<attribute name="label" translatable="yes">String 1</attribute>
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</item>
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<item>
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<attribute name="action">win.change_label</attribute>
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<attribute name="target">String 2</attribute>
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<attribute name="label" translatable="yes">String 2</attribute>
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</item>
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<item>
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<attribute name="action">win.change_label</attribute>
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<attribute name="target">String 3</attribute>
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<attribute name="label" translatable="yes">String 3</attribute>
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</item>
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</section>
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<section>
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<item>
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<attribute name="action">win.maximize</attribute>
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<attribute name="label" translatable="yes">Maximize</attribute>
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</item>
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</section>
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<section>
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<item>
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<attribute name="action">app.about</attribute>
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<attribute name="label" translatable="yes">_About</attribute>
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</item>
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<item>
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<attribute name="action">app.quit</attribute>
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<attribute name="label" translatable="yes">_Quit</attribute>
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<attribute name="accel"><Primary>q</attribute>
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</item>
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</section>
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</menu>
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</interface>
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"""
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class AppWindow(Gtk.ApplicationWindow):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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# This will be in the windows group and have the "win" prefix
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max_action = Gio.SimpleAction.new_stateful("maximize", None,
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GLib.Variant.new_boolean(False))
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max_action.connect("change-state", self.on_maximize_toggle)
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self.add_action(max_action)
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# Keep it in sync with the actual state
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self.connect("notify::is-maximized",
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lambda obj, pspec: max_action.set_state(
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GLib.Variant.new_boolean(obj.props.is_maximized)))
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lbl_variant = GLib.Variant.new_string("String 1")
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lbl_action = Gio.SimpleAction.new_stateful("change_label",
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lbl_variant.get_type(),
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lbl_variant)
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lbl_action.connect("change-state", self.on_change_label_state)
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self.add_action(lbl_action)
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self.label = Gtk.Label(label=lbl_variant.get_string(),
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margin=30)
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self.add(self.label)
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def on_change_label_state(self, action, value):
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action.set_state(value)
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self.label.set_text(value.get_string())
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def on_maximize_toggle(self, action, value):
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action.set_state(value)
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if value.get_boolean():
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self.maximize()
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else:
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self.unmaximize()
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class Application(Gtk.Application):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, application_id="org.example.myapp",
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flags=Gio.ApplicationFlags.HANDLES_COMMAND_LINE,
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**kwargs)
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self.window = None
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self.add_main_option("test", ord("t"), GLib.OptionFlags.NONE,
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GLib.OptionArg.NONE, "Command line test", None)
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def do_startup(self):
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Gtk.Application.do_startup(self)
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action = Gio.SimpleAction.new("about", None)
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action.connect("activate", self.on_about)
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self.add_action(action)
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action = Gio.SimpleAction.new("quit", None)
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action.connect("activate", self.on_quit)
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self.add_action(action)
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builder = Gtk.Builder.new_from_string(MENU_XML, -1)
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self.set_app_menu(builder.get_object("app-menu"))
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def do_activate(self):
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# We only allow a single window and raise any existing ones
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if not self.window:
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# Windows are associated with the application
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# when the last one is closed the application shuts down
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self.window = AppWindow(application=self, title="Main Window")
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self.window.present()
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def do_command_line(self, command_line):
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options = command_line.get_options_dict()
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if options.contains("test"):
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# This is printed on the main instance
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print("Test argument recieved")
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self.activate()
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return 0
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def on_about(self, action, param):
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about_dialog = Gtk.AboutDialog(transient_for=self.window, modal=True)
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about_dialog.present()
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def on_quit(self, action, param):
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self.quit()
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if __name__ == "__main__":
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app = Application()
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app.run(sys.argv)
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