Function on_activate

src/main.py:29–72

(app)

        print("overlay")

def on_activate(app):
    # Configure the complete surface before mapping it. Presenting the window
    # earlier lets GTK draw its default opaque background for the first frame
    # and means the initial 1x1 default size may be kept by the compositor.
    window = Gtk.Window(application=app, title="nyarchpet")
    LayerShell.init_for_window(window)
    LayerShell.set_layer(window, LayerShell.Layer.OVERLAY)
    window.set_decorated(False)

    # A user GTK stylesheet can contain a global `window` background at
    # GTK_STYLE_PROVIDER_PRIORITY_USER. Transparency is functional here, not
    # cosmetic, so install this narrowly-scoped rule just above that priority.
    css = Gtk.CssProvider()
    css.load_from_string(
        """
        window.main-window {
            background: transparent;
            background-color: transparent;
        }
        """
    )
    Gtk.StyleContext.add_provider_for_display(
        window.get_display(),
        css,
        Gtk.STYLE_PROVIDER_PRIORITY_USER + 1
    )
    window.add_css_class("main-window")

    # Create puppet
    model_manager = ModelManager(Live2DDesktopPuppet(), get_wm_interface())
    server = InteractionServer(model_manager, window)
    server.set_change_func(changefunc, window)
    widget = model_manager.get_gtk_widget()
    # Get monitor resolution
    dim = model_manager.get_monitor_dimensions() 
    w = dim[0] 
    h = dim[1]
    window.set_default_size(w, h)
    window.set_child(widget)
    window.present()

    # Remove input area until the model reports its visible bounds.
    surface = window.get_surface()
    if surface is None:
        return
    Gdk.Surface.set_input_region(surface, Region(RectangleInt(0, 0, 0, 0)))