C++ GTK_APPLICATION函數代碼示例

void
initialize_app_menubar (GApplication *application)
{
	GtkBuilder *builder;
	GSettings  *settings;

	g_action_map_add_action_entries (G_ACTION_MAP (application),
					 app_menu_entries,
					 G_N_ELEMENTS (app_menu_entries),
					 application);

	builder = _gtk_builder_new_from_resource ("app-menubar.ui");
	gtk_application_set_menubar (GTK_APPLICATION (application),
				     G_MENU_MODEL (gtk_builder_get_object (builder, "app-menubar")));
	g_object_unref (builder);

	settings = fr_application_get_settings (FR_APPLICATION (application), FILE_ROLLER_SCHEMA_UI);
	g_simple_action_set_state (GET_ACTION (PREF_UI_VIEW_SIDEBAR),
				   g_variant_new_boolean (g_settings_get_boolean (settings, PREF_UI_VIEW_SIDEBAR)));

	settings = fr_application_get_settings (FR_APPLICATION (application), FILE_ROLLER_SCHEMA_LISTING);
	g_simple_action_set_state (GET_ACTION (PREF_LISTING_LIST_MODE),
				   g_variant_new_string (_g_enum_type_get_value (FR_TYPE_WINDOW_LIST_MODE,
						   	 g_settings_get_enum (settings, PREF_LISTING_LIST_MODE))->value_nick));

	g_signal_connect (fr_application_get_settings (FR_APPLICATION (application), FILE_ROLLER_SCHEMA_UI),
			  "changed::" PREF_UI_VIEW_SIDEBAR,
			  G_CALLBACK (pref_view_sidebar_changed),
			  application);
	g_signal_connect (fr_application_get_settings (FR_APPLICATION (application), FILE_ROLLER_SCHEMA_LISTING),
			  "changed::" PREF_LISTING_LIST_MODE,
			  G_CALLBACK (pref_list_mode_changed),
			  application);
}

void
gw_application_set_win_menubar (GwApplication *application, GMenuModel *menumodel)
{
    //Sanity checks
    g_return_if_fail (application != NULL);
    g_return_if_fail (menumodel != NULL);
    if (g_menu_model_get_n_items (menumodel) == 0) return;

    //Declarations
    GMenuModel *menubar;
    gint length;

    //Initializations
    menubar = gtk_application_get_menubar (GTK_APPLICATION (application));
    g_return_if_fail (menubar != NULL);
    length = g_menu_model_get_n_items (menubar);

    //Clear the menubar
    while (length-- > 0) g_menu_remove (G_MENU (menubar), 0);

    //Add the menuitem linking the menus 
    {
      GMenuItem *menuitem = g_menu_item_new_section (NULL, menumodel);
      if (menuitem != NULL)
      {
        g_menu_append_item (G_MENU (menubar), menuitem);
        g_object_unref (menuitem); menuitem = NULL;
      }
      gw_application_add_accelerators (application, menubar);
    }
}

static void
gw_application_load_menubar (GwApplication *application)
{
    GMenuModel *menumodel;
    menumodel = G_MENU_MODEL (g_menu_new ());
    gtk_application_set_menubar (GTK_APPLICATION (application), menumodel);
}

static int
trg_gtk_app_command_line(GApplication * application,
                         GApplicationCommandLine * cmdline)
{
    GList *windows =
        gtk_application_get_windows(GTK_APPLICATION(application));
    TrgMainWindow *window;
    gchar **argv;

    if (!windows || !windows->data)
        return 1;

    window = TRG_MAIN_WINDOW(windows->data);
    argv = g_application_command_line_get_arguments(cmdline, NULL);

    if (g_application_command_line_get_is_remote(cmdline)) {
        if (!argv[0]) {
            gtk_window_present(GTK_WINDOW(window));
            g_strfreev(argv);
        } else {
            return trg_add_from_filename(window, argv);
        }
    } else {
        trg_main_window_set_start_args(window, argv);
        auto_connect_if_required(TRG_MAIN_WINDOW(windows->data));
    }

    return 0;
}

static void
get_network_available (GNetworkMonitor *monitor,
		       gboolean         available,
		       GeditApp        *app)
{
	gboolean enable;
	GList *windows, *w;

	enable = g_network_monitor_get_network_available (monitor);

	windows = gtk_application_get_windows (GTK_APPLICATION (app));

	for (w = windows; w != NULL; w = w->next)
	{
		GeditWindow *window = GEDIT_WINDOW (w->data);

		if (GEDIT_IS_WINDOW (window))
		{
			GList *tabs, *t;

			tabs = _gedit_window_get_all_tabs (window);

			for (t = tabs; t != NULL; t = t->next)
			{
				_gedit_tab_set_network_available (GEDIT_TAB (t->data),
					                          enable);
			}

			g_list_free (tabs);
		}
	}
}

static void
openoffice_missing_unoconv (NemoPreviewPdfLoader *self)
{
  GApplication *app = g_application_get_default ();
  GtkWidget *widget = GTK_WIDGET (gtk_application_get_active_window (GTK_APPLICATION (app)));
  GDBusConnection *connection = g_application_get_dbus_connection (app);
  guint xid = 0;
  GdkWindow *gdk_window;
  const gchar *unoconv_path[2];

  gdk_window = gtk_widget_get_window (widget);
  if (gdk_window != NULL)
    xid = GDK_WINDOW_XID (gdk_window);

  unoconv_path[0] = "/usr/bin/unoconv";
  unoconv_path[1] = NULL;

  g_dbus_connection_call (connection,
                          "org.freedesktop.PackageKit",
                          "/org/freedesktop/PackageKit",
                          "org.freedesktop.PackageKit.Modify",
                          "InstallProvideFiles",
                          g_variant_new ("(u^ass)",
                                         xid,
                                         unoconv_path,
                                         "hide-confirm-deps"),
                          NULL, G_DBUS_CALL_FLAGS_NONE,
                          G_MAXINT, NULL,
                          openoffice_missing_unoconv_ready_cb,
                          self);
}

static void
activate_wizard(GApplication *app,
                gpointer user_data)
{
    create_assistant(GTK_APPLICATION(app), *(int *)user_data);
    update_gui_state_from_problem_data(UPDATE_SELECTED_EVENT);
}

static gboolean
maybe_open_with_existing_workspace (IdeApplication *self,
                                    GFile          *file,
                                    const gchar    *hint,
                                    GCancellable   *cancellable)
{
  GList *windows;
  GList *iter;

  g_assert (IDE_IS_APPLICATION (self));
  g_assert (G_IS_FILE (file));

  windows = gtk_application_get_windows (GTK_APPLICATION (self));

  for (iter = windows; iter != NULL; iter = iter->next)
    {
      GtkWindow *window = iter->data;

      if (IDE_IS_WORKBENCH (window) &&
          workbench_manages_file (IDE_WORKBENCH (window), file))
        {
          ide_workbench_open_files_async (IDE_WORKBENCH (window),
                                          &file,
                                          1,
                                          hint,
                                          0,
                                          cancellable,
                                          NULL,
                                          NULL);
          return TRUE;
        }
    }

  return FALSE;
}

/* Startup function for the menu we are creating in this sample */
static void
startup (GApplication *app,
         gpointer      user_data)
{
  GMenu *menu;
  GSimpleAction *quit_action;

  /* Initialize the GMenu, and add a menu item with label "About" and action 
   * "win.about". Also add another menu item with label "Quit" and action 
   * "app.quit" 
   */
  menu = g_menu_new ();
  g_menu_append (menu, "About", "win.about");
  g_menu_append (menu, "Quit", "app.quit");

  /* Create a new simple action for the application. (In this case it is the 
   * "quit" action.
   */
  quit_action = g_simple_action_new ("quit", NULL);

  /* Ensure that the menu we have just created is set for the overall application */
  gtk_application_set_app_menu (GTK_APPLICATION (app), G_MENU_MODEL (menu));

  g_signal_connect (quit_action, 
                    "activate", 
                    G_CALLBACK (quit_cb), 
                    app);

  g_action_map_add_action (G_ACTION_MAP (app), G_ACTION (quit_action));

}

static void
impl_deactivate	(PeasActivatable *plugin)
{
	XplayerScreensaverPlugin *pi = XPLAYER_SCREENSAVER_PLUGIN (plugin);

	g_object_unref (pi->priv->settings);

	if (pi->priv->handler_id_playing != 0) {
		XplayerObject *xplayer;
		xplayer = g_object_get_data (G_OBJECT (plugin), "object");
		g_signal_handler_disconnect (G_OBJECT (xplayer), pi->priv->handler_id_playing);
		pi->priv->handler_id_playing = 0;
	}
	if (pi->priv->handler_id_metadata != 0) {
		g_signal_handler_disconnect (G_OBJECT (pi->priv->bvw), pi->priv->handler_id_metadata);
		pi->priv->handler_id_metadata = 0;
	}

	if (pi->priv->inhibit_cookie != 0) {
		gtk_application_uninhibit (GTK_APPLICATION (pi->priv->xplayer), pi->priv->inhibit_cookie);
		pi->priv->inhibit_cookie = 0;
	}

	g_object_unref (pi->priv->xplayer);
	g_object_unref (pi->priv->bvw);
}

static void 
gw_window_constructed (GObject *object)
{
    GwWindow *window;
    GwWindowPrivate *priv;
    gboolean os_shows_app_menu;
    GtkSettings *settings;

    //Chain the parent class
    {
      G_OBJECT_CLASS (gw_window_parent_class)->constructed (object);
    }

    window = GW_WINDOW (object);
    priv = window->priv;
    settings = gtk_settings_get_default ();
    g_object_get (settings, "gtk-shell-shows-app-menu", &os_shows_app_menu, NULL);
    gtk_widget_add_events (GTK_WIDGET (window), GDK_FOCUS_CHANGE_MASK);

    gtk_application_window_set_show_menubar (GTK_APPLICATION_WINDOW (window), FALSE);

    priv->accelgroup = gtk_accel_group_new ();
    gtk_window_add_accel_group (GTK_WINDOW (window), priv->accelgroup);
    gtk_window_set_application (GTK_WINDOW (window), GTK_APPLICATION (priv->application));
    priv->builder = gtk_builder_new ();
    gw_window_load_ui_xml (window, priv->ui_xml);
    priv->toplevel = GTK_WIDGET (gw_window_get_object (GW_WINDOW (window), "toplevel"));

    g_signal_connect (G_OBJECT (window), "configure-event", G_CALLBACK (gw_window_configure_event_cb), NULL);
    g_signal_connect (window, "focus-in-event", G_CALLBACK (gw_window_focus_in_event_cb), NULL);
}

static void refimpl_app_startup(GApplication* application) {
    RefImplApp* app = REFIMPL_APP(application);

    G_APPLICATION_CLASS(refimpl_app_parent_class)->startup(application);

    g_action_map_add_action_entries(G_ACTION_MAP(app), app_entries, G_N_ELEMENTS(app_entries), app);

    if (refimpl_app_has_app_menu(app)) {
	GtkBuilder* builder;
	GError* error = NULL;

	builder = gtk_builder_new();
	if (!gtk_builder_add_from_resource(builder,
					   "/com/bobtacoindustries/N3888_RefImpl/refimpl_menu.ui",
					   &error)) {
	    g_warning("Loading menu builder file failed. Message: %s", error->message);
	    g_error_free(error);
	}
	else {
	    GMenuModel* appMenu;
	    appMenu = G_MENU_MODEL(gtk_builder_get_object(builder, "app_menu"));
	    gtk_application_set_app_menu(GTK_APPLICATION(application), appMenu);
	}

	g_object_unref(builder);
    }

    //setup_accelerators(app);
}

static void
shell_action_new_window_cb (GSimpleAction *action,
                            GVariant *parameter,
                            EShell *shell)
{
	GtkApplication *application;
	GList *list;
	const gchar *view_name;

	application = GTK_APPLICATION (shell);
	list = gtk_application_get_windows (application);

	view_name = g_variant_get_string (parameter, NULL);

	/* Present the first EShellWindow showing 'view_name'. */
	while (list != NULL) {
		GtkWindow *window = GTK_WINDOW (list->data);

		if (E_IS_SHELL_WINDOW (window)) {
			const gchar *active_view;

			active_view = e_shell_window_get_active_view (
				E_SHELL_WINDOW (window));
			if (g_strcmp0 (active_view, view_name) == 0) {
				gtk_window_present (window);
				return;
			}
		}

		list = g_list_next (list);
	}

	/* No suitable EShellWindow found, so create one. */
	e_shell_create_shell_window (shell, view_name);
}

/************************************************************ APP Main Window */
static void
bmd_activate (GtkApplication *app, gpointer data)
{
	bmd_widgets *a = (bmd_widgets *) data;


	/* create a window with title, default size, icon and a box container */
	a->window = gtk_application_window_new (app);
	gtk_window_set_application (GTK_WINDOW (a->window), GTK_APPLICATION (app));
	gtk_window_set_position (GTK_WINDOW (a->window), GTK_WIN_POS_CENTER);
	gtk_window_set_title (GTK_WINDOW (a->window), "Book Management Demo");
	gtk_window_set_default_size (GTK_WINDOW (a->window), XSIZE, YSIZE);
	gtk_window_set_default_icon_from_file ("bmd_icon.png", NULL);
	a->box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
	gtk_container_add (GTK_CONTAINER (a->window), a->box);

	/* moved the creation of the menu to a dedicated function */
	bmd_construct_menu (app, (gpointer) a);
	a->paned = gtk_paned_new (GTK_ORIENTATION_VERTICAL);
	gtk_box_pack_start (GTK_BOX (a->box), a->paned, TRUE, TRUE, 0);
	bmd_construct_editablecells (app, (gpointer) a);
	bmd_construct_imagedemo (app, (gpointer) a);

	gtk_widget_show_all (GTK_WIDGET (a->window));
}

static void
terminal_app_startup (GApplication *application)
{
  const GActionEntry app_menu_actions[] = {
    { "preferences", app_menu_preferences_cb,   NULL, NULL, NULL },
    { "help",        app_menu_help_cb,          NULL, NULL, NULL },
    { "about",       app_menu_about_cb,         NULL, NULL, NULL },
    { "quit",        app_menu_quit_cb,          NULL, NULL, NULL }
  };

  gs_unref_object GtkBuilder *builder;
  GError *error = NULL;

  G_APPLICATION_CLASS (terminal_app_parent_class)->startup (application);

  /* Need to set the WM class (bug #685742) */
  gdk_set_program_class("Gnome-terminal");

  g_action_map_add_action_entries (G_ACTION_MAP (application),
                                   app_menu_actions, G_N_ELEMENTS (app_menu_actions),
                                   application);

  builder = gtk_builder_new ();
  gtk_builder_add_from_resource (builder,
                                 TERMINAL_RESOURCES_PATH_PREFIX "ui/terminal-appmenu.ui",
                                 &error);
  g_assert_no_error (error);

  gtk_application_set_app_menu (GTK_APPLICATION (application),
                                G_MENU_MODEL (gtk_builder_get_object (builder, "appmenu")));

  _terminal_debug_print (TERMINAL_DEBUG_SERVER, "Startup complete\n");
}