xref: /freebsd/contrib/ncurses/menu/m_win.c (revision f39bffc62c1395bde25d152c7f68fdf7cbaab414)
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28 
29 /****************************************************************************
30  *   Author:  Juergen Pfeifer, 1995,1997                                    *
31  ****************************************************************************/
32 
33 /***************************************************************************
34 * Module m_win                                                             *
35 * Menus window association routines                                        *
36 ***************************************************************************/
37 
38 #include "menu.priv.h"
39 
40 MODULE_ID("$Id: m_win.c,v 1.17 2010/01/23 21:20:11 tom Exp $")
41 
42 /*---------------------------------------------------------------------------
43 |   Facility      :  libnmenu
44 |   Function      :  int set_menu_win(MENU *menu, WINDOW *win)
45 |
46 |   Description   :  Sets the window of the menu.
47 |
48 |   Return Values :  E_OK               - success
49 |                    E_POSTED           - menu is already posted
50 +--------------------------------------------------------------------------*/
51 NCURSES_EXPORT(int)
52 set_menu_win(MENU * menu, WINDOW *win)
53 {
54   T((T_CALLED("set_menu_win(%p,%p)"), (void *)menu, (void *)win));
55 
56   if (menu)
57     {
58       if (menu->status & _POSTED)
59 	RETURN(E_POSTED);
60       else
61 #if NCURSES_SP_FUNCS
62 	{
63 	  /* We ensure that userwin is never null. So even if a null
64 	     WINDOW parameter is passed, we store the SCREENS stdscr.
65 	     The only MENU that can have a null userwin is the static
66 	     _nc_default_Menu.
67 	   */
68 	  SCREEN *sp = _nc_screen_of(menu->userwin);
69 
70 	  menu->userwin = win ? win : sp->_stdscr;
71 	  _nc_Calculate_Item_Length_and_Width(menu);
72 	}
73 #else
74 	menu->userwin = win;
75 #endif
76     }
77   else
78     _nc_Default_Menu.userwin = win;
79 
80   RETURN(E_OK);
81 }
82 
83 /*---------------------------------------------------------------------------
84 |   Facility      :  libnmenu
85 |   Function      :  WINDOW* menu_win(const MENU*)
86 |
87 |   Description   :  Returns pointer to the window of the menu
88 |
89 |   Return Values :  NULL on error, otherwise pointer to window
90 +--------------------------------------------------------------------------*/
91 NCURSES_EXPORT(WINDOW *)
92 menu_win(const MENU * menu)
93 {
94   const MENU *m = Normalize_Menu(menu);
95 
96   T((T_CALLED("menu_win(%p)"), (const void *)menu));
97   returnWin(Get_Menu_UserWin(m));
98 }
99 
100 /* m_win.c ends here */
101