コード例 #1
0
ファイル: menu.c プロジェクト: ueno/emacs
widget_value *
digest_single_submenu (int start, int end, bool top_level_items)
{
  widget_value *wv, *prev_wv, *save_wv, *first_wv;
  int i;
  int submenu_depth = 0;
  widget_value **submenu_stack;
  bool panes_seen = 0;
  struct frame *f = XFRAME (Vmenu_updating_frame);
  USE_SAFE_ALLOCA;

  SAFE_NALLOCA (submenu_stack, 1, menu_items_used);
  wv = make_widget_value ("menu", NULL, true, Qnil);
  wv->button_type = BUTTON_TYPE_NONE;
  first_wv = wv;
  save_wv = 0;
  prev_wv = 0;

  /* Loop over all panes and items made by the preceding call
     to parse_single_submenu and construct a tree of widget_value objects.
     Ignore the panes and items used by previous calls to
     digest_single_submenu, even though those are also in menu_items.  */
  i = start;
  while (i < end)
    {
      if (EQ (AREF (menu_items, i), Qnil))
	{
	  submenu_stack[submenu_depth++] = save_wv;
	  save_wv = prev_wv;
	  prev_wv = 0;
	  i++;
	}
      else if (EQ (AREF (menu_items, i), Qlambda))
	{
	  prev_wv = save_wv;
	  save_wv = submenu_stack[--submenu_depth];
	  i++;
	}
      else if (EQ (AREF (menu_items, i), Qt)
	       && submenu_depth != 0)
	i += MENU_ITEMS_PANE_LENGTH;
      /* Ignore a nil in the item list.
	 It's meaningful only for dialog boxes.  */
      else if (EQ (AREF (menu_items, i), Qquote))
	i += 1;
      else if (EQ (AREF (menu_items, i), Qt))
	{
	  /* Create a new pane.  */
	  Lisp_Object pane_name;
	  const char *pane_string;

	  panes_seen = 1;

	  pane_name = AREF (menu_items, i + MENU_ITEMS_PANE_NAME);

	  /* TTY menus display menu items via tty_write_glyphs, which
	     will encode the strings as appropriate.  */
	  if (!FRAME_TERMCAP_P (f))
	    {
#ifdef HAVE_NTGUI
	      if (STRINGP (pane_name))
		{
		  if (unicode_append_menu)
		    /* Encode as UTF-8 for now.  */
		    pane_name = ENCODE_UTF_8 (pane_name);
		  else if (STRING_MULTIBYTE (pane_name))
		    pane_name = ENCODE_SYSTEM (pane_name);

		  ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
		}
#elif defined (USE_LUCID) && defined (HAVE_XFT)
	      if (STRINGP (pane_name))
		{
		  pane_name = ENCODE_UTF_8 (pane_name);
		  ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
		}
#elif !defined (HAVE_MULTILINGUAL_MENU)
	      if (STRINGP (pane_name) && STRING_MULTIBYTE (pane_name))
		{
		  pane_name = ENCODE_MENU_STRING (pane_name);
		  ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
		}
#endif
	    }

	  pane_string = (NILP (pane_name)
			 ? "" : SSDATA (pane_name));
	  /* If there is just one top-level pane, put all its items directly
	     under the top-level menu.  */
	  if (menu_items_n_panes == 1)
	    pane_string = "";

	  /* If the pane has a meaningful name,
	     make the pane a top-level menu item
	     with its items as a submenu beneath it.  */
	  if (strcmp (pane_string, ""))
	    {
	      /* Set value to 1 so update_submenu_strings can handle '@'.  */
	      wv = make_widget_value (NULL, (char *) 1, true, Qnil);
	      if (save_wv)
		save_wv->next = wv;
	      else
		first_wv->contents = wv;
	      wv->lname = pane_name;
	      wv->button_type = BUTTON_TYPE_NONE;
	      save_wv = wv;
	    }
	  else
	    save_wv = first_wv;

	  prev_wv = 0;
	  i += MENU_ITEMS_PANE_LENGTH;
	}
      else
	{
	  /* Create a new item within current pane.  */
	  Lisp_Object item_name, enable, descrip, def, type, selected;
	  Lisp_Object help;

	  /* All items should be contained in panes.  */
	  if (! panes_seen)
	    emacs_abort ();

	  item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME);
	  enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE);
	  descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY);
	  def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION);
	  type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE);
	  selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED);
	  help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP);

	  /* TTY menu items and their descriptions will be encoded by
	     tty_write_glyphs.  */
	  if (!FRAME_TERMCAP_P (f))
	    {
#ifdef HAVE_NTGUI
	      if (STRINGP (item_name))
		{
		  if (unicode_append_menu)
		    item_name = ENCODE_UTF_8 (item_name);
		  else if (STRING_MULTIBYTE (item_name))
		    item_name = ENCODE_SYSTEM (item_name);

		  ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
		}

	      if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
		{
		  descrip = ENCODE_SYSTEM (descrip);
		  ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
		}
#elif USE_LUCID
	      if (STRINGP (item_name))
		{
		  item_name = ENCODE_UTF_8 (item_name);
		  ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
		}

	      if (STRINGP (descrip))
		{
		  descrip = ENCODE_UTF_8 (descrip);
		  ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
		}
#elif !defined (HAVE_MULTILINGUAL_MENU)
	      if (STRING_MULTIBYTE (item_name))
		{
		  item_name = ENCODE_MENU_STRING (item_name);
		  ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
		}

	      if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
		{
		  descrip = ENCODE_MENU_STRING (descrip);
		  ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
		}
#endif
	    }

	  wv = make_widget_value (NULL, NULL, !NILP (enable),
				  STRINGP (help) ? help : Qnil);
	  if (prev_wv)
	    prev_wv->next = wv;
	  else
	    save_wv->contents = wv;

	  wv->lname = item_name;
	  if (!NILP (descrip))
	    wv->lkey = descrip;
	  /* The intptr_t cast avoids a warning.  There's no problem
	     as long as pointers have enough bits to hold small integers.  */
	  wv->call_data = (!NILP (def) ? (void *) (intptr_t) i : 0);

	  if (NILP (type))
	    wv->button_type = BUTTON_TYPE_NONE;
	  else if (EQ (type, QCradio))
	    wv->button_type = BUTTON_TYPE_RADIO;
	  else if (EQ (type, QCtoggle))
	    wv->button_type = BUTTON_TYPE_TOGGLE;
	  else
	    emacs_abort ();

	  wv->selected = !NILP (selected);

	  prev_wv = wv;

	  i += MENU_ITEMS_ITEM_LENGTH;
	}
    }

  /* If we have just one "menu item"
     that was originally a button, return it by itself.  */
  if (top_level_items && first_wv->contents && first_wv->contents->next == 0)
    {
      wv = first_wv;
      first_wv = first_wv->contents;
      xfree (wv);
    }

  SAFE_FREE ();
  return first_wv;
}
コード例 #2
0
ファイル: w32menu.c プロジェクト: 0xAX/emacs
static Lisp_Object
simple_dialog_show (struct frame *f, Lisp_Object contents, Lisp_Object header)
{
  int answer;
  UINT type;
  Lisp_Object lispy_answer = Qnil, temp = XCAR (contents);

  type = MB_YESNO;

  /* Since we only handle Yes/No dialogs, and we already checked
     is_simple_dialog, we don't need to worry about checking contents
     to see what type of dialog to use.  */

  /* Use Unicode if possible, so any language can be displayed.  */
  if (unicode_message_box)
    {
      WCHAR *text;
      const WCHAR *title;
      USE_SAFE_ALLOCA;

      if (STRINGP (temp))
	{
	  char *utf8_text = SSDATA (ENCODE_UTF_8 (temp));
	  /* Be pessimistic about the number of characters needed.
	     Remember characters outside the BMP will take more than
	     one utf16 word, so we cannot simply use the character
	     length of temp.  */
	  int utf8_len = strlen (utf8_text);
	  text = SAFE_ALLOCA ((utf8_len + 1) * sizeof (WCHAR));
	  utf8to16 ((unsigned char *)utf8_text, utf8_len, text);
	}
      else
	{
	  text = (WCHAR *)L"";
	}

      if (NILP (header))
	{
	  title = L"Question";
	  type |= MB_ICONQUESTION;
	}
      else
	{
	  title = L"Information";
	  type |= MB_ICONINFORMATION;
	}

      answer = unicode_message_box (FRAME_W32_WINDOW (f), text, title, type);
      SAFE_FREE ();
    }
  else
    {
      const char *text, *title;

      /* Fall back on ANSI message box, but at least use system
	 encoding so questions representable by the system codepage
	 are encoded properly.  */
      if (STRINGP (temp))
	text = SSDATA (ENCODE_SYSTEM (temp));
      else
	text = "";

      if (NILP (header))
	{
	  title = "Question";
	  type |= MB_ICONQUESTION;
	}
      else
	{
	  title = "Information";
	  type |= MB_ICONINFORMATION;
	}

      answer = MessageBox (FRAME_W32_WINDOW (f), text, title, type);
    }

  if (answer == IDYES)
    lispy_answer = build_string ("Yes");
  else if (answer == IDNO)
    lispy_answer = build_string ("No");
  else
    Fsignal (Qquit, Qnil);

  for (temp = XCDR (contents); CONSP (temp); temp = XCDR (temp))
    {
      Lisp_Object item, name, value;
      item = XCAR (temp);
      if (CONSP (item))
	{
	  name = XCAR (item);
	  value = XCDR (item);
	}
      else
	{
	  name = item;
	  value = Qnil;
	}

      if (!NILP (Fstring_equal (name, lispy_answer)))
	{
	  return value;
	}
    }
  Fsignal (Qquit, Qnil);
  return Qnil;
}
コード例 #3
0
ファイル: w32menu.c プロジェクト: 0xAX/emacs
Lisp_Object
w32_menu_show (struct frame *f, int x, int y, int menuflags,
	       Lisp_Object title, const char **error)
{
  int i;
  int menu_item_selection;
  HMENU menu;
  POINT pos;
  widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0;
  widget_value **submenu_stack
    = (widget_value **) alloca (menu_items_used * sizeof (widget_value *));
  Lisp_Object *subprefix_stack
    = (Lisp_Object *) alloca (menu_items_used * word_size);
  int submenu_depth = 0;
  bool first_pane;

  *error = NULL;

  if (menu_items_n_panes == 0)
    return Qnil;

  if (menu_items_used <= MENU_ITEMS_PANE_LENGTH)
    {
      *error = "Empty menu";
      return Qnil;
    }

  block_input ();

  /* Create a tree of widget_value objects
     representing the panes and their items.  */
  wv = make_widget_value ("menu", NULL, true, Qnil);
  wv->button_type = BUTTON_TYPE_NONE;
  first_wv = wv;
  first_pane = true;

  /* Loop over all panes and items, filling in the tree.  */
  i = 0;
  while (i < menu_items_used)
    {
      if (EQ (AREF (menu_items, i), Qnil))
	{
	  submenu_stack[submenu_depth++] = save_wv;
	  save_wv = prev_wv;
	  prev_wv = 0;
	  first_pane = false;
	  i++;
	}
      else if (EQ (AREF (menu_items, i), Qlambda))
	{
	  prev_wv = save_wv;
	  save_wv = submenu_stack[--submenu_depth];
	  first_pane = false;
	  i++;
	}
      else if (EQ (AREF (menu_items, i), Qt)
	       && submenu_depth != 0)
	i += MENU_ITEMS_PANE_LENGTH;
      /* Ignore a nil in the item list.
	 It's meaningful only for dialog boxes.  */
      else if (EQ (AREF (menu_items, i), Qquote))
	i += 1;
      else if (EQ (AREF (menu_items, i), Qt))
	{
	  /* Create a new pane.  */
	  Lisp_Object pane_name, prefix;
	  const char *pane_string;
	  pane_name = AREF (menu_items, i + MENU_ITEMS_PANE_NAME);
	  prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX);

	  if (STRINGP (pane_name))
	    {
	      if (unicode_append_menu)
		pane_name = ENCODE_UTF_8 (pane_name);
	      else if (STRING_MULTIBYTE (pane_name))
		pane_name = ENCODE_SYSTEM (pane_name);

	      ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
	    }

	  pane_string = (NILP (pane_name)
			 ? "" : SSDATA (pane_name));
	  /* If there is just one top-level pane, put all its items directly
	     under the top-level menu.  */
	  if (menu_items_n_panes == 1)
	    pane_string = "";

	  /* If the pane has a meaningful name,
	     make the pane a top-level menu item
	     with its items as a submenu beneath it.  */
	  if (!(menuflags & MENU_KEYMAPS) && strcmp (pane_string, ""))
	    {
	      wv = make_widget_value (pane_string, NULL, true, Qnil);
	      if (save_wv)
		save_wv->next = wv;
	      else
		first_wv->contents = wv;
	      if ((menuflags & MENU_KEYMAPS) && !NILP (prefix))
		wv->name++;
	      wv->button_type = BUTTON_TYPE_NONE;
	      save_wv = wv;
	      prev_wv = 0;
	    }
	  else if (first_pane)
	    {
	      save_wv = wv;
	      prev_wv = 0;
	    }
	  first_pane = false;
	  i += MENU_ITEMS_PANE_LENGTH;
	}
      else
	{
	  /* Create a new item within current pane.  */
	  Lisp_Object item_name, enable, descrip, def, type, selected, help;

	  item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME);
	  enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE);
	  descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY);
	  def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION);
	  type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE);
	  selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED);
          help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP);

          if (STRINGP (item_name))
	    {
	      if (unicode_append_menu)
		item_name = ENCODE_UTF_8 (item_name);
	      else if (STRING_MULTIBYTE (item_name))
		item_name = ENCODE_SYSTEM (item_name);

	      ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
	    }

	  if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
            {
	      descrip = ENCODE_SYSTEM (descrip);
	      ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
	    }

	  wv = make_widget_value (SSDATA (item_name), NULL, !NILP (enable),
				  STRINGP (help) ? help : Qnil);
	  if (prev_wv)
	    prev_wv->next = wv;
	  else
	    save_wv->contents = wv;
	  if (!NILP (descrip))
	    wv->key = SSDATA (descrip);
	  /* Use the contents index as call_data, since we are
             restricted to 16-bits.  */
	  wv->call_data = !NILP (def) ? (void *) (UINT_PTR) i : 0;

	  if (NILP (type))
	    wv->button_type = BUTTON_TYPE_NONE;
	  else if (EQ (type, QCtoggle))
	    wv->button_type = BUTTON_TYPE_TOGGLE;
	  else if (EQ (type, QCradio))
	    wv->button_type = BUTTON_TYPE_RADIO;
	  else
	    emacs_abort ();

	  wv->selected = !NILP (selected);

	  prev_wv = wv;

	  i += MENU_ITEMS_ITEM_LENGTH;
	}
    }

  /* Deal with the title, if it is non-nil.  */
  if (!NILP (title))
    {
      widget_value *wv_title;
      widget_value *wv_sep = make_widget_value ("--", NULL, false, Qnil);

      /* Maybe replace this separator with a bitmap or owner-draw item
	 so that it looks better.  Having two separators looks odd.  */
      wv_sep->next = first_wv->contents;

      if (unicode_append_menu)
	title = ENCODE_UTF_8 (title);
      else if (STRING_MULTIBYTE (title))
	title = ENCODE_SYSTEM (title);

      wv_title = make_widget_value (SSDATA (title), NULL, true, Qnil);
      wv_title->title = TRUE;
      wv_title->button_type = BUTTON_TYPE_NONE;
      wv_title->next = wv_sep;
      first_wv->contents = wv_title;
    }

  /* No selection has been chosen yet.  */
  menu_item_selection = 0;

  /* Actually create the menu.  */
  current_popup_menu = menu = CreatePopupMenu ();
  fill_in_menu (menu, first_wv->contents);

  /* Adjust coordinates to be root-window-relative.  */
  pos.x = x;
  pos.y = y;
  ClientToScreen (FRAME_W32_WINDOW (f), &pos);

  /* Display the menu.  */
  menu_item_selection = SendMessage (FRAME_W32_WINDOW (f),
				     WM_EMACS_TRACKPOPUPMENU,
				     (WPARAM)menu, (LPARAM)&pos);

  /* Clean up extraneous mouse events which might have been generated
     during the call. */
  discard_mouse_events ();
  FRAME_DISPLAY_INFO (f)->grabbed = 0;

  /* Free the widget_value objects we used to specify the contents.  */
  free_menubar_widget_value_tree (first_wv);

  DestroyMenu (menu);

  /* Free the owner-drawn and help-echo menu strings.  */
  w32_free_menu_strings (FRAME_W32_WINDOW (f));
  f->output_data.w32->menubar_active = 0;

  /* Find the selected item, and its pane, to return
     the proper value.  */
  if (menu_item_selection != 0)
    {
      Lisp_Object prefix, entry;

      prefix = entry = Qnil;
      i = 0;
      while (i < menu_items_used)
	{
	  if (EQ (AREF (menu_items, i), Qnil))
	    {
	      subprefix_stack[submenu_depth++] = prefix;
	      prefix = entry;
	      i++;
	    }
	  else if (EQ (AREF (menu_items, i), Qlambda))
	    {
	      prefix = subprefix_stack[--submenu_depth];
	      i++;
	    }
	  else if (EQ (AREF (menu_items, i), Qt))
	    {
	      prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX);
	      i += MENU_ITEMS_PANE_LENGTH;
	    }
	  /* Ignore a nil in the item list.
	     It's meaningful only for dialog boxes.  */
	  else if (EQ (AREF (menu_items, i), Qquote))
	    i += 1;
	  else
	    {
	      entry = AREF (menu_items, i + MENU_ITEMS_ITEM_VALUE);
	      if (menu_item_selection == i)
		{
		  if (menuflags & MENU_KEYMAPS)
		    {
		      int j;

		      entry = Fcons (entry, Qnil);
		      if (!NILP (prefix))
			entry = Fcons (prefix, entry);
		      for (j = submenu_depth - 1; j >= 0; j--)
			if (!NILP (subprefix_stack[j]))
			  entry = Fcons (subprefix_stack[j], entry);
		    }
		  unblock_input ();
		  return entry;
		}
	      i += MENU_ITEMS_ITEM_LENGTH;
	    }
	}
    }
  else if (!(menuflags & MENU_FOR_CLICK))
    {
      unblock_input ();
      /* Make "Cancel" equivalent to C-g.  */
      Fsignal (Qquit, Qnil);
    }

  unblock_input ();
  return Qnil;
}
コード例 #4
0
ファイル: menu.c プロジェクト: stanis/emacs
widget_value *
digest_single_submenu (int start, int end, int top_level_items)
{
  widget_value *wv, *prev_wv, *save_wv, *first_wv;
  int i;
  int submenu_depth = 0;
  widget_value **submenu_stack;
  int panes_seen = 0;

  submenu_stack
    = (widget_value **) alloca (menu_items_used * sizeof (widget_value *));
  wv = xmalloc_widget_value ();
  wv->name = "menu";
  wv->value = 0;
  wv->enabled = 1;
  wv->button_type = BUTTON_TYPE_NONE;
  wv->help = Qnil;
  first_wv = wv;
  save_wv = 0;
  prev_wv = 0;

  /* Loop over all panes and items made by the preceding call
     to parse_single_submenu and construct a tree of widget_value objects.
     Ignore the panes and items used by previous calls to
     digest_single_submenu, even though those are also in menu_items.  */
  i = start;
  while (i < end)
    {
      if (EQ (XVECTOR (menu_items)->contents[i], Qnil))
	{
	  submenu_stack[submenu_depth++] = save_wv;
	  save_wv = prev_wv;
	  prev_wv = 0;
	  i++;
	}
      else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda))
	{
	  prev_wv = save_wv;
	  save_wv = submenu_stack[--submenu_depth];
	  i++;
	}
      else if (EQ (XVECTOR (menu_items)->contents[i], Qt)
	       && submenu_depth != 0)
	i += MENU_ITEMS_PANE_LENGTH;
      /* Ignore a nil in the item list.
	 It's meaningful only for dialog boxes.  */
      else if (EQ (XVECTOR (menu_items)->contents[i], Qquote))
	i += 1;
      else if (EQ (XVECTOR (menu_items)->contents[i], Qt))
	{
	  /* Create a new pane.  */
	  Lisp_Object pane_name, prefix;
	  const char *pane_string;

	  panes_seen++;

	  pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME];
	  prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];

#ifdef HAVE_NTGUI
	  if (STRINGP (pane_name))
	    {
	      if (unicode_append_menu)
		/* Encode as UTF-8 for now.  */
		pane_name = ENCODE_UTF_8 (pane_name);
	      else if (STRING_MULTIBYTE (pane_name))
		pane_name = ENCODE_SYSTEM (pane_name);

	      ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
	    }
#elif defined (USE_LUCID) && defined (HAVE_XFT)
	  if (STRINGP (pane_name))
            {
              pane_name = ENCODE_UTF_8 (pane_name);
	      ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
            }
#elif !defined (HAVE_MULTILINGUAL_MENU)
	  if (STRINGP (pane_name) && STRING_MULTIBYTE (pane_name))
	    {
	      pane_name = ENCODE_MENU_STRING (pane_name);
	      ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
	    }
#endif

	  pane_string = (NILP (pane_name)
			 ? "" : (char *) SDATA (pane_name));
	  /* If there is just one top-level pane, put all its items directly
	     under the top-level menu.  */
	  if (menu_items_n_panes == 1)
	    pane_string = "";

	  /* If the pane has a meaningful name,
	     make the pane a top-level menu item
	     with its items as a submenu beneath it.  */
	  if (strcmp (pane_string, ""))
	    {
	      wv = xmalloc_widget_value ();
	      if (save_wv)
		save_wv->next = wv;
	      else
		first_wv->contents = wv;
	      wv->lname = pane_name;
              /* Set value to 1 so update_submenu_strings can handle '@'  */
	      wv->value = (char *)1;
	      wv->enabled = 1;
	      wv->button_type = BUTTON_TYPE_NONE;
	      wv->help = Qnil;
	      save_wv = wv;
	    }
	  else
	    save_wv = first_wv;

	  prev_wv = 0;
	  i += MENU_ITEMS_PANE_LENGTH;
	}
      else
	{
	  /* Create a new item within current pane.  */
	  Lisp_Object item_name, enable, descrip, def, type, selected;
	  Lisp_Object help;

	  /* All items should be contained in panes.  */
	  if (panes_seen == 0)
	    abort ();

	  item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME);
	  enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE);
	  descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY);
	  def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION);
	  type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE);
	  selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED);
	  help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP);

#ifdef HAVE_NTGUI
	  if (STRINGP (item_name))
	    {
	      if (unicode_append_menu)
		item_name = ENCODE_UTF_8 (item_name);
	      else if (STRING_MULTIBYTE (item_name))
		item_name = ENCODE_SYSTEM (item_name);

	      ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
	    }

	  if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
	    {
	      descrip = ENCODE_SYSTEM (descrip);
	      ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
	    }
#elif USE_LUCID
	  if (STRINGP (item_name))
	    {
              item_name = ENCODE_UTF_8 (item_name);
	      ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
	    }

	  if (STRINGP (descrip))
	    {
	      descrip = ENCODE_UTF_8 (descrip);
	      ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
	    }
#elif !defined (HAVE_MULTILINGUAL_MENU)
          if (STRING_MULTIBYTE (item_name))
	    {
	      item_name = ENCODE_MENU_STRING (item_name);
	      ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
	    }

          if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
	    {
	      descrip = ENCODE_MENU_STRING (descrip);
	      ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
	    }
#endif

	  wv = xmalloc_widget_value ();
	  if (prev_wv)
	    prev_wv->next = wv;
	  else
	    save_wv->contents = wv;

	  wv->lname = item_name;
	  if (!NILP (descrip))
	    wv->lkey = descrip;
	  wv->value = 0;
	  /* The EMACS_INT cast avoids a warning.  There's no problem
	     as long as pointers have enough bits to hold small integers.  */
	  wv->call_data = (!NILP (def) ? (void *) (EMACS_INT) i : 0);
	  wv->enabled = !NILP (enable);

	  if (NILP (type))
	    wv->button_type = BUTTON_TYPE_NONE;
	  else if (EQ (type, QCradio))
	    wv->button_type = BUTTON_TYPE_RADIO;
	  else if (EQ (type, QCtoggle))
	    wv->button_type = BUTTON_TYPE_TOGGLE;
	  else
	    abort ();

	  wv->selected = !NILP (selected);
	  if (! STRINGP (help))
	    help = Qnil;

	  wv->help = help;

	  prev_wv = wv;

	  i += MENU_ITEMS_ITEM_LENGTH;
	}
    }

  /* If we have just one "menu item"
     that was originally a button, return it by itself.  */
  if (top_level_items && first_wv->contents && first_wv->contents->next == 0)
    {
      wv = first_wv->contents;
      free_widget_value (first_wv);
      return wv;
    }

  return first_wv;
}