C++ GTK_MENU函数代码示例

static gboolean on_button_release(G_GNUC_UNUSED GtkWidget * widget, GdkEventButton * event,
		G_GNUC_UNUSED gpointer user_data)
{
	if (event->button == 3)
	{
		GtkTreeSelection *treesel;
		GtkTreeModel *model;
		GtkTreeIter iter;

		treesel = gtk_tree_view_get_selection(GTK_TREE_VIEW(s_file_view));

		if (!gtk_tree_selection_get_selected(treesel, &model, &iter))
			return FALSE;

		gtk_widget_set_sensitive(s_popup_menu.expand, gtk_tree_model_iter_has_child(model, &iter));
		gtk_widget_set_sensitive(s_popup_menu.remove_external_dir, topmost_selected(model, &iter, FALSE));

		gtk_menu_popup(GTK_MENU(s_popup_menu.widget), NULL, NULL, NULL, NULL,
						event->button, event->time);
		return TRUE;
	}

	return FALSE;
}

/* Keep track of the last menu item selected. (For the purposes
 * of the option menu */
int
clip_GTK_MENUGETACTIVE(ClipMachine * ClipMachineMemory)
{
   C_widget *cmnu = _fetch_cw_arg(ClipMachineMemory);

   GtkWidget *item;

   C_widget *citem;

   CHECKCWID(cmnu, GTK_IS_MENU);
   item = gtk_menu_get_active(GTK_MENU(cmnu->widget));
   citem = _list_get_cwidget(ClipMachineMemory, item);
   if (!citem)
      citem = _register_widget(ClipMachineMemory, item, NULL);
   if (citem)
    {
       ClipVar  *ret = RETPTR(ClipMachineMemory);

       _clip_mclone(ClipMachineMemory, ret, &citem->obj);
    }
   return 0;
 err:
   return 1;
}

void
panel_menu_button_set_menu_path (PanelMenuButton *button,
				 const char      *menu_uri)
{
	const char *menu_path;
	char       *scheme;

	g_return_if_fail (PANEL_IS_MENU_BUTTON (button));

	scheme    = NULL;
	menu_path = split_menu_uri (menu_uri, &scheme);

	if (!scheme)
		return;

	button->priv->path_root = panel_menu_scheme_to_path_root (scheme);
	g_free (scheme);

	if (!button->priv->menu_path && (!menu_path || !menu_path [0]))
		return;

	if (button->priv->menu_path && menu_path &&
	    !strcmp (button->priv->menu_path, menu_path))
		return;

	g_free (button->priv->menu_path);
	button->priv->menu_path = NULL;

	button->priv->menu_path = g_strdup (menu_path);

	if (button->priv->menu)
		gtk_menu_detach (GTK_MENU (button->priv->menu));
	button->priv->menu = NULL;

	panel_menu_button_set_icon (button);
}

void wxFrame::AttachMenuBar( wxMenuBar *menuBar )
{
    wxFrameBase::AttachMenuBar(menuBar);

    if (m_frameMenuBar)
    {
#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
        hildon_window_set_menu(HILDON_WINDOW(m_widget),
                               GTK_MENU(m_frameMenuBar->m_menubar));
#else // !wxUSE_LIBHILDON && !wxUSE_LIBHILDON2
        m_frameMenuBar->SetParent(this);

        // menubar goes into top of vbox (m_mainWidget)
        gtk_box_pack_start(
            GTK_BOX(m_mainWidget), menuBar->m_widget, false, false, 0);
        gtk_box_reorder_child(GTK_BOX(m_mainWidget), menuBar->m_widget, 0);

        // disconnect wxWindowGTK "size_request" handler,
        // it interferes with sizing of detached GtkHandleBox
        gulong handler_id = g_signal_handler_find(
            menuBar->m_widget,
            GSignalMatchType(G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DATA),
            g_signal_lookup("size_request", GTK_TYPE_WIDGET),
            0, NULL, NULL, menuBar);
        if (handler_id != 0)
            g_signal_handler_disconnect(menuBar->m_widget, handler_id);

        // reset size request to allow native sizing to work
        gtk_widget_set_size_request(menuBar->m_widget, -1, -1);

        gtk_widget_show( m_frameMenuBar->m_widget );
#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2/!wxUSE_LIBHILDON && !wxUSE_LIBHILDON2
    }
    // make sure next size_allocate causes a wxSizeEvent
    m_oldClientWidth = 0;
}

void
glade_popup_simple_pop (GladeProject *project, GdkEventButton *event)
{
  GtkWidget *popup_menu;
  gint button;
  gint event_time;

  popup_menu = glade_popup_create_menu (NULL, NULL, project, FALSE);
  if (!popup_menu)
    return;

  if (event)
    {
      button = event->button;
      event_time = event->time;
    }
  else
    {
      button = 0;
      event_time = gtk_get_current_event_time ();
    }
  gtk_menu_popup (GTK_MENU (popup_menu), NULL, NULL,
                  NULL, NULL, button, event_time);
}

void on_trayicon_menu (GtkStatusIcon *status_icon,
		       guint          button,
		       guint          activate_time,
		       gpointer       user_data)
{
  GromitData *data = (GromitData *) user_data;
  if(data->debug)
    g_printerr("DEBUG: trayicon menu popup\n");

  /* create the menu */
  GtkWidget *menu = gtk_menu_new ();
  /* Create the menu items */
  //TODO option menu
  GtkWidget* sep_item = gtk_separator_menu_item_new();
  GtkWidget* quit_item = gtk_image_menu_item_new_from_stock(GTK_STOCK_QUIT, NULL);


  /* Add them to the menu */
  gtk_menu_shell_append (GTK_MENU_SHELL (menu), sep_item);
  gtk_menu_shell_append (GTK_MENU_SHELL (menu), quit_item);

  /* Attach the callback functions to the respective activate signal */
  g_signal_connect(G_OBJECT (quit_item), "activate",
		   G_CALLBACK (gtk_main_quit),
		   NULL);


  /* We do need to show menu items */
  gtk_widget_show (sep_item);
  gtk_widget_show (quit_item);


  /* show menu */
  gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL,
                  0, gtk_get_current_event_time());
}

static gboolean select_verse_button_press_callback(GtkWidget *widget,
						   GdkEventButton *event,
						   EDITOR *editor)
{
	GtkWidget *menu;

	menu =
	    main_versekey_drop_down_verse_menu(editor->navbar, NB_EDITOR,
					       NULL, editor);
	if (!menu)
		return 0;
	g_signal_connect(menu, "deactivate",
			 G_CALLBACK(menu_deactivate_callback), widget);
	if ((event->type == GDK_BUTTON_PRESS) && event->button == 1) {
		gtk_widget_grab_focus(widget);
		gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widget),
					     TRUE);
		gtk_menu_popup(GTK_MENU(menu), NULL, NULL,
			       menu_position_under, widget, event->button,
			       event->time);
		return TRUE;
	}
	return FALSE;
}

static GtkWidget *bmark_popup_menu(Tbfwin * bfwin, gboolean show_bmark_specific, gboolean show_file_specific) {
	GtkWidget *menu, *menu_item;

	menu = gtk_menu_new();
	if (show_bmark_specific) {
		menu_item = gtk_menu_item_new_with_label(_("Goto bookmark"));
		g_signal_connect(GTK_OBJECT(menu_item), "activate", G_CALLBACK(bmark_popup_menu_goto_lcb),
						 bfwin);
		gtk_menu_append(GTK_MENU(menu), menu_item);
	
		menu_item = gtk_separator_menu_item_new();
		gtk_menu_append(GTK_MENU(menu), menu_item);
	
		menu_item = gtk_menu_item_new_with_label(_("Edit"));
		g_signal_connect(GTK_OBJECT(menu_item), "activate", G_CALLBACK(bmark_popup_menu_rename_lcb),
						 bfwin);
		gtk_menu_append(GTK_MENU(menu), menu_item);
		menu_item = gtk_menu_item_new_with_label(_("Delete"));
		g_signal_connect(GTK_OBJECT(menu_item), "activate", G_CALLBACK(bmark_popup_menu_del_lcb),
						 bfwin);
		gtk_menu_append(GTK_MENU(menu), menu_item);
	}
	if (show_file_specific) {
		menu_item = gtk_menu_item_new_with_label(_("Delete all in document"));
		g_signal_connect(GTK_OBJECT(menu_item), "activate", G_CALLBACK(bmark_popup_menu_deldoc_lcb),
						 bfwin);
		gtk_menu_append(GTK_MENU(menu), menu_item);
	}
	menu_item = gtk_menu_item_new_with_label(_("Delete all"));
	g_signal_connect(GTK_OBJECT(menu_item), "activate", G_CALLBACK(bmark_popup_menu_delall_lcb),
					 bfwin);
	gtk_menu_append(GTK_MENU(menu), menu_item);

	gtk_widget_show_all(menu);
	g_signal_connect_after(G_OBJECT(menu), "destroy", G_CALLBACK(destroy_disposable_menu_cb), menu);

	return menu;
}

void ptt_menu_show(GtkWidget *button) {
  ptt_menu_clear();
  ptt_menu_update();
  gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL, 0, 0);
}

static gboolean _on_click_item (GtkWidget *pWidget, GdkEventButton* pButton, CDQuickBrowserItem *pItem)
{
	g_return_val_if_fail (pItem != NULL, FALSE);
	GldiModuleInstance *myApplet = pItem->pApplet;
	CD_APPLET_ENTER;

	if (pButton->button == 3) // right click
	{
		gchar *cUri = g_filename_to_uri (pItem->cPath, NULL, NULL);
		g_return_val_if_fail (cUri != NULL, FALSE);

		GtkWidget *pMenu = gldi_menu_new (NULL);
		
		GList *pApps = cairo_dock_fm_list_apps_for_file (cUri);
		if (pApps != NULL)
		{
			GtkWidget *pSubMenu = CD_APPLET_ADD_SUB_MENU_WITH_IMAGE (D_("Open with"), pMenu, GLDI_ICON_NAME_OPEN);

			cd_quick_browser_free_apps_list (myApplet);

			GList *a;
			gchar **pAppInfo;
			gchar *cIconPath;
			for (a = pApps; a != NULL; a = a->next)
			{
				pAppInfo = a->data;

				if (pAppInfo[2] != NULL)
					cIconPath = cairo_dock_search_icon_s_path (pAppInfo[2], cairo_dock_search_icon_size (GTK_ICON_SIZE_MENU));
				else
					cIconPath = NULL;

				gpointer *data = g_new (gpointer, 2);
				data[0] = pItem;
				data[1] = pAppInfo[1];
				myData.pAppList = g_list_prepend (myData.pAppList, data); // to save the exec command

				CD_APPLET_ADD_IN_MENU_WITH_STOCK_AND_DATA (pAppInfo[0], cIconPath, _cd_launch_with, pSubMenu, data);

				g_free (cIconPath);
				g_free (pAppInfo[0]);
				g_free (pAppInfo[2]);
				g_free (pAppInfo);
			}
			g_list_free (pApps);
		}
		CD_APPLET_ADD_IN_MENU_WITH_STOCK_AND_DATA (D_("Open parent folder"), GLDI_ICON_NAME_DIRECTORY, _cd_open_parent, pMenu, pItem);
		
		CD_APPLET_ADD_IN_MENU_WITH_STOCK_AND_DATA (D_("Copy the location"), GLDI_ICON_NAME_COPY, _cd_copy_location, pMenu, pItem);
		
		gtk_widget_show_all (pMenu);
		gtk_menu_popup (GTK_MENU (pMenu),
			NULL,
			NULL,
			NULL,  // popup on mouse.
			NULL,
			1,
			gtk_get_current_event_time ());
		g_free (cUri);
		CD_APPLET_LEAVE (TRUE); // do not remove quick_browser menu now
	}

	CD_APPLET_LEAVE (FALSE);
}

nsSystemFontsGTK2::nsSystemFontsGTK2()
  : mDefaultFontName(NS_LITERAL_STRING("sans-serif"))
  , mButtonFontName(NS_LITERAL_STRING("sans-serif"))
  , mFieldFontName(NS_LITERAL_STRING("sans-serif"))
  , mMenuFontName(NS_LITERAL_STRING("sans-serif"))
{
    InitPangoLib();

    /*
     * Much of the widget creation code here is similar to the code in
     * nsLookAndFeel::InitColors().
     */

    // mDefaultFont
    GtkWidget *label = gtk_label_new("M");
    GtkWidget *parent = gtk_fixed_new();
    GtkWidget *window = gtk_window_new(GTK_WINDOW_POPUP);

    gtk_container_add(GTK_CONTAINER(parent), label);
    gtk_container_add(GTK_CONTAINER(window), parent);

    gtk_widget_ensure_style(label);

    GetSystemFontInfo(label, &mDefaultFontName, &mDefaultFontStyle);

    gtk_widget_destroy(window);  // no unref, windows are different

    // mFieldFont
    GtkWidget *entry = gtk_entry_new();
    parent = gtk_fixed_new();
    window = gtk_window_new(GTK_WINDOW_POPUP);

    gtk_container_add(GTK_CONTAINER(parent), entry);
    gtk_container_add(GTK_CONTAINER(window), parent);
    gtk_widget_ensure_style(entry);

    GetSystemFontInfo(entry, &mFieldFontName, &mFieldFontStyle);

    gtk_widget_destroy(window);  // no unref, windows are different

    // mMenuFont
    GtkWidget *accel_label = gtk_accel_label_new("M");
    GtkWidget *menuitem = gtk_menu_item_new();
    GtkWidget *menu = gtk_menu_new();
    g_object_ref_sink(GTK_OBJECT(menu));

    gtk_container_add(GTK_CONTAINER(menuitem), accel_label);
    gtk_menu_shell_append((GtkMenuShell *)GTK_MENU(menu), menuitem);

    gtk_widget_ensure_style(accel_label);

    GetSystemFontInfo(accel_label, &mMenuFontName, &mMenuFontStyle);

    g_object_unref(menu);

    // mButtonFont
    parent = gtk_fixed_new();
    GtkWidget *button = gtk_button_new();
    label = gtk_label_new("M");
    window = gtk_window_new(GTK_WINDOW_POPUP);
          
    gtk_container_add(GTK_CONTAINER(button), label);
    gtk_container_add(GTK_CONTAINER(parent), button);
    gtk_container_add(GTK_CONTAINER(window), parent);

    gtk_widget_ensure_style(label);

    GetSystemFontInfo(label, &mButtonFontName, &mButtonFontStyle);

    gtk_widget_destroy(window);  // no unref, windows are different
}

void create_range_controls( void )
{
    GtkWidget *window;
    GtkWidget *box1, *box2, *box3;
    GtkWidget *button;
    GtkWidget *scrollbar;
    GtkWidget *separator;
    GtkWidget *opt, *menu, *item;
    GtkWidget *label;
    GtkWidget *scale;
    GtkObject *adj1, *adj2;

    /* Standard window-creating stuff */
    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_signal_connect (GTK_OBJECT (window), "destroy",
                        GTK_SIGNAL_FUNC(gtk_main_quit),
                        NULL);
    gtk_window_set_title (GTK_WINDOW (window), "range controls");

    box1 = gtk_vbox_new (FALSE, 0);
    gtk_container_add (GTK_CONTAINER (window), box1);
    gtk_widget_show (box1);

    box2 = gtk_hbox_new (FALSE, 10);
    gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
    gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0);
    gtk_widget_show (box2);

    /* value, lower, upper, step_increment, page_increment, page_size */
    /* Note that the page_size value only makes a difference for
     * scrollbar widgets, and the highest value you'll get is actually
     * (upper - page_size). */
    adj1 = gtk_adjustment_new (0.0, 0.0, 101.0, 0.1, 1.0, 1.0);
  
    vscale = gtk_vscale_new (GTK_ADJUSTMENT (adj1));
    scale_set_default_values (GTK_SCALE (vscale));
    gtk_box_pack_start (GTK_BOX (box2), vscale, TRUE, TRUE, 0);
    gtk_widget_show (vscale);

    box3 = gtk_vbox_new (FALSE, 10);
    gtk_box_pack_start (GTK_BOX (box2), box3, TRUE, TRUE, 0);
    gtk_widget_show (box3);

    /* Reuse the same adjustment */
    hscale = gtk_hscale_new (GTK_ADJUSTMENT (adj1));
    gtk_widget_set_usize (GTK_WIDGET (hscale), 200, 30);
    scale_set_default_values (GTK_SCALE (hscale));
    gtk_box_pack_start (GTK_BOX (box3), hscale, TRUE, TRUE, 0);
    gtk_widget_show (hscale);

    /* Reuse the same adjustment again */
    scrollbar = gtk_hscrollbar_new (GTK_ADJUSTMENT (adj1));
    /* Notice how this causes the scales to always be updated
     * continuously when the scrollbar is moved */
    gtk_range_set_update_policy (GTK_RANGE (scrollbar), 
                                 GTK_UPDATE_CONTINUOUS);
    gtk_box_pack_start (GTK_BOX (box3), scrollbar, TRUE, TRUE, 0);
    gtk_widget_show (scrollbar);

    box2 = gtk_hbox_new (FALSE, 10);
    gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
    gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0);
    gtk_widget_show (box2);

    /* A checkbutton to control whether the value is displayed or not */
    button = gtk_check_button_new_with_label("Display value on scale widgets");
    gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
    gtk_signal_connect (GTK_OBJECT (button), "toggled",
                        GTK_SIGNAL_FUNC(cb_draw_value), NULL);
    gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
    gtk_widget_show (button);
  
    box2 = gtk_hbox_new (FALSE, 10);
    gtk_container_set_border_width (GTK_CONTAINER (box2), 10);

    /* An option menu to change the position of the value */
    label = gtk_label_new ("Scale Value Position:");
    gtk_box_pack_start (GTK_BOX (box2), label, FALSE, FALSE, 0);
    gtk_widget_show (label);
  
    opt = gtk_option_menu_new();
    menu = gtk_menu_new();

    item = make_menu_item ("Top",
                           GTK_SIGNAL_FUNC(cb_pos_menu_select),
                           GINT_TO_POINTER (GTK_POS_TOP));
    gtk_menu_append (GTK_MENU (menu), item);
  
    item = make_menu_item ("Bottom", GTK_SIGNAL_FUNC (cb_pos_menu_select), 
                           GINT_TO_POINTER (GTK_POS_BOTTOM));
    gtk_menu_append (GTK_MENU (menu), item);
  
    item = make_menu_item ("Left", GTK_SIGNAL_FUNC (cb_pos_menu_select),
                           GINT_TO_POINTER (GTK_POS_LEFT));
    gtk_menu_append (GTK_MENU (menu), item);
  
    item = make_menu_item ("Right", GTK_SIGNAL_FUNC (cb_pos_menu_select),
                            GINT_TO_POINTER (GTK_POS_RIGHT));
    gtk_menu_append (GTK_MENU (menu), item);
  
//.........这里部分代码省略.........

void tray_icon_on_menu(GtkStatusIcon *status_icon, guint button, 
        guint activate_time, gpointer user_data)
{
    gtk_menu_popup(GTK_MENU(menu), NULL, NULL, gtk_status_icon_position_menu, status_icon, button, activate_time);
}

void PopupMenu::show(const IntRect& rect, FrameView* view, int index)
{
    ASSERT(client());

    if (!m_popup) {
        m_popup = GTK_MENU(gtk_menu_new());
#if GLIB_CHECK_VERSION(2,10,0)
        g_object_ref_sink(G_OBJECT(m_popup));
#else
        g_object_ref(G_OBJECT(m_popup));
        gtk_object_sink(GTK_OBJECT(m_popup));
#endif
        g_signal_connect(m_popup, "unmap", G_CALLBACK(menuUnmapped), this);
    } else
        gtk_container_foreach(GTK_CONTAINER(m_popup), reinterpret_cast<GtkCallback>(menuRemoveItem), this);

    int x, y;
    gdk_window_get_origin(GTK_WIDGET(view->containingWindow())->window, &x, &y);
    m_menuPosition = view->contentsToWindow(rect.location());
    m_menuPosition = IntPoint(m_menuPosition.x() + x, m_menuPosition.y() + y + rect.height());
    m_indexMap.clear();

    const int size = client()->listSize();
    for (int i = 0; i < size; ++i) {
        GtkWidget* item;
        if (client()->itemIsSeparator(i))
            item = gtk_separator_menu_item_new();
        else
            item = gtk_menu_item_new_with_label(client()->itemText(i).utf8().data());

        m_indexMap.add(item, i);
        g_signal_connect(item, "activate", G_CALLBACK(menuItemActivated), this);

        // FIXME: Apply the RenderStyle from client()->itemStyle(i)
        gtk_widget_set_sensitive(item, client()->itemIsEnabled(i));
        gtk_menu_shell_append(GTK_MENU_SHELL(m_popup), item);
        gtk_widget_show(item);
    }

    gtk_menu_set_active(m_popup, index);


    // The size calls are directly copied from gtkcombobox.c which is LGPL
    GtkRequisition requisition;
    gtk_widget_set_size_request(GTK_WIDGET(m_popup), -1, -1);
    gtk_widget_size_request(GTK_WIDGET(m_popup), &requisition);
    gtk_widget_set_size_request(GTK_WIDGET(m_popup), MAX(rect.width(), requisition.width), -1);

    GList* children = GTK_MENU_SHELL(m_popup)->children;
    if (size)
        for (int i = 0; i < size; i++) {
            if (i > index)
              break;

            GtkWidget* item = reinterpret_cast<GtkWidget*>(children->data);
            GtkRequisition itemRequisition;
            gtk_widget_get_child_requisition(item, &itemRequisition);
            m_menuPosition.setY(m_menuPosition.y() - itemRequisition.height);

            children = g_list_next(children);
        }
    else
        // Center vertically the empty popup in the combo box area
        m_menuPosition.setY(m_menuPosition.y() - rect.height() / 2);

    gtk_menu_popup(m_popup, NULL, NULL, reinterpret_cast<GtkMenuPositionFunc>(menuPositionFunction), this, 0, gtk_get_current_event_time());
}

//.........这里部分代码省略.........
      screen_width = wnck_screen_get_width (screen);
      screen_height = wnck_screen_get_height (screen);

      if (window_x >= screen_width)
        gtk_widget_show (priv->left_item);
      else
        gtk_widget_hide (priv->left_item);

      if (window_x < viewport_width - screen_width)
        gtk_widget_show (priv->right_item);
      else
        gtk_widget_hide (priv->right_item);

      if (window_y >= screen_height)
        gtk_widget_show (priv->up_item);
      else
        gtk_widget_hide (priv->up_item);

      if (window_y < viewport_height - screen_height)
        gtk_widget_show (priv->down_item);
      else
        gtk_widget_hide (priv->down_item);
    }
  else if (!viewport_mode && workspace && !wnck_window_is_pinned (priv->window))
    {
      if (wnck_workspace_get_neighbor (workspace, WNCK_MOTION_LEFT))
        gtk_widget_show (priv->left_item);
      else
        gtk_widget_hide (priv->left_item);

      if (wnck_workspace_get_neighbor (workspace, WNCK_MOTION_RIGHT))
        gtk_widget_show (priv->right_item);
      else
        gtk_widget_hide (priv->right_item);

      if (wnck_workspace_get_neighbor (workspace, WNCK_MOTION_UP))
        gtk_widget_show (priv->up_item);
      else
        gtk_widget_hide (priv->up_item);

      if (wnck_workspace_get_neighbor (workspace, WNCK_MOTION_DOWN))
        gtk_widget_show (priv->down_item);
      else
        gtk_widget_hide (priv->down_item);
    }
  else
    {
      gtk_widget_hide (priv->left_item);
      gtk_widget_hide (priv->right_item);
      gtk_widget_hide (priv->up_item);
      gtk_widget_hide (priv->down_item);
    }

  if (viewport_mode)
    {
      int viewport_width, viewport_height;
      int screen_width, screen_height;

      viewport_width = wnck_workspace_get_width (workspace);
      viewport_height = wnck_workspace_get_height (workspace);

      screen_width = wnck_screen_get_width (screen);
      screen_height = wnck_screen_get_height (screen);

      gtk_widget_show (priv->workspace_separator);
      gtk_widget_show (priv->pin_item);
      gtk_widget_show (priv->unpin_item);
      if (viewport_width  >= 2 * screen_width ||
          viewport_height >= 2 * screen_height)
        {
          gtk_widget_show (priv->workspace_item);
          refill_submenu_viewport (menu);
        }
      else
        {
          gtk_widget_hide (priv->workspace_item);
          gtk_menu_popdown (GTK_MENU (gtk_menu_item_get_submenu (GTK_MENU_ITEM (priv->workspace_item))));
        }
    }
  else if (wnck_screen_get_workspace_count (screen) > 1)
    {
      gtk_widget_show (priv->workspace_separator);
      gtk_widget_show (priv->pin_item);
      gtk_widget_show (priv->unpin_item);
      gtk_widget_show (priv->workspace_item);
      refill_submenu_workspace (menu);
    }
  else
    {
      gtk_widget_hide (priv->workspace_separator);
      gtk_widget_hide (priv->pin_item);
      gtk_widget_hide (priv->unpin_item);
      gtk_widget_hide (priv->workspace_item);
      gtk_menu_popdown (GTK_MENU (gtk_menu_item_get_submenu (GTK_MENU_ITEM (priv->workspace_item))));
    }

  gtk_menu_reposition (GTK_MENU (menu));

  return FALSE;
}