xref: /freebsd/contrib/ncurses/menu/m_win.c (revision 6be3386466ab79a84b48429ae66244f21526d3df)
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2  * Copyright 2020 Thomas E. Dickey                                          *
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29 
30 /****************************************************************************
31  *   Author:  Juergen Pfeifer, 1995,1997                                    *
32  ****************************************************************************/
33 
34 /***************************************************************************
35 * Module m_win                                                             *
36 * Menus window association routines                                        *
37 ***************************************************************************/
38 
39 #include "menu.priv.h"
40 
41 MODULE_ID("$Id: m_win.c,v 1.20 2020/12/12 00:38:14 tom Exp $")
42 
43 /*---------------------------------------------------------------------------
44 |   Facility      :  libnmenu
45 |   Function      :  int set_menu_win(MENU *menu, WINDOW *win)
46 |
47 |   Description   :  Sets the window of the menu.
48 |
49 |   Return Values :  E_OK               - success
50 |                    E_POSTED           - menu is already posted
51 +--------------------------------------------------------------------------*/
52 MENU_EXPORT(int)
53 set_menu_win(MENU *menu, WINDOW *win)
54 {
55   T((T_CALLED("set_menu_win(%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 userwin 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 userwin is the static
67 	     _nc_default_Menu.
68 	   */
69 	  SCREEN *sp = _nc_screen_of(menu->userwin);
70 
71 	  menu->userwin = win ? win : sp->_stdscr;
72 	  _nc_Calculate_Item_Length_and_Width(menu);
73 	}
74 #else
75 	menu->userwin = win;
76 #endif
77     }
78   else
79     _nc_Default_Menu.userwin = win;
80 
81   RETURN(E_OK);
82 }
83 
84 /*---------------------------------------------------------------------------
85 |   Facility      :  libnmenu
86 |   Function      :  WINDOW* menu_win(const MENU*)
87 |
88 |   Description   :  Returns pointer to the window of the menu
89 |
90 |   Return Values :  NULL on error, otherwise pointer to window
91 +--------------------------------------------------------------------------*/
92 MENU_EXPORT(WINDOW *)
93 menu_win(const MENU *menu)
94 {
95   const MENU *m = Normalize_Menu(menu);
96 
97   T((T_CALLED("menu_win(%p)"), (const void *)menu));
98   returnWin(Get_Menu_UserWin(m));
99 }
100 
101 /* m_win.c ends here */
102