1/****************************************************************************
2 * Copyright 2020,2021 Thomas E. Dickey                                     *
3 * Copyright 1998-2009,2010 Free Software Foundation, Inc.                  *
4 *                                                                          *
5 * Permission is hereby granted, free of charge, to any person obtaining a  *
6 * copy of this software and associated documentation files (the            *
7 * "Software"), to deal in the Software without restriction, including      *
8 * without limitation the rights to use, copy, modify, merge, publish,      *
9 * distribute, distribute with modifications, sublicense, and/or sell       *
10 * copies of the Software, and to permit persons to whom the Software is    *
11 * furnished to do so, subject to the following conditions:                 *
12 *                                                                          *
13 * The above copyright notice and this permission notice shall be included  *
14 * in all copies or substantial portions of the Software.                   *
15 *                                                                          *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
23 *                                                                          *
24 * Except as contained in this notice, the name(s) of the above copyright   *
25 * holders shall not be used in advertising or otherwise to promote the     *
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27 * authorization.                                                           *
28 ****************************************************************************/
29
30/****************************************************************************
31 *   Author:  Juergen Pfeifer, 1995,1997                                    *
32 ****************************************************************************/
33
34/***************************************************************************
35* Module m_sub                                                             *
36* Menus subwindow association routines                                     *
37***************************************************************************/
38
39#include "menu.priv.h"
40
41MODULE_ID("$Id: m_sub.c,v 1.16 2021/06/17 21:20:30 tom Exp $")
42
43/*---------------------------------------------------------------------------
44|   Facility      :  libnmenu
45|   Function      :  int set_menu_sub(MENU *menu, WINDOW *win)
46|
47|   Description   :  Sets the subwindow of the menu.
48|
49|   Return Values :  E_OK           - success
50|                    E_POSTED       - menu is already posted
51+--------------------------------------------------------------------------*/
52MENU_EXPORT(int)
53set_menu_sub(MENU *menu, WINDOW *win)
54{
55  T((T_CALLED("set_menu_sub(%p,%p)"), (void *)menu, (void *)win));
56
57  if (menu)
58    {
59      if (menu->status & _POSTED)
60	RETURN(E_POSTED);
61      else
62#if NCURSES_SP_FUNCS
63	{
64	  /* We ensure that usersub is never null. So even if a null
65	     WINDOW parameter is passed, we store the SCREENS stdscr.
66	     The only MENU that can have a null usersub is the static
67	     _nc_default_Menu.
68	   */
69	  SCREEN *sp = _nc_screen_of(menu->usersub);
70
71	  menu->usersub = win ? win : sp->_stdscr;
72	  _nc_Calculate_Item_Length_and_Width(menu);
73	}
74#else
75	menu->usersub = win;
76#endif
77    }
78  else
79    _nc_Default_Menu.usersub = win;
80
81  RETURN(E_OK);
82}
83
84/*---------------------------------------------------------------------------
85|   Facility      :  libnmenu
86|   Function      :  WINDOW* menu_sub(const MENU *menu)
87|
88|   Description   :  Returns a pointer to the subwindow of the menu
89|
90|   Return Values :  NULL on error, otherwise a pointer to the window
91+--------------------------------------------------------------------------*/
92MENU_EXPORT(WINDOW *)
93menu_sub(const MENU *menu)
94{
95  const MENU *m = Normalize_Menu(menu);
96
97  T((T_CALLED("menu_sub(%p)"), (const void *)menu));
98  returnWin(Get_Menu_Window(m));
99}
100
101/* m_sub.c ends here */
102