freebsd-skq/contrib/ncurses/menu/m_sub.c
2014-02-28 23:48:13 +00:00

101 lines
4.4 KiB
C

/****************************************************************************
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* "Software"), to deal in the Software without restriction, including *
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****************************************************************************/
/****************************************************************************
* Author: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
/***************************************************************************
* Module m_sub *
* Menus subwindow association routines *
***************************************************************************/
#include "menu.priv.h"
MODULE_ID("$Id: m_sub.c,v 1.12 2010/01/23 21:20:11 tom Exp $")
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_menu_sub(MENU *menu, WINDOW *win)
|
| Description : Sets the subwindow of the menu.
|
| Return Values : E_OK - success
| E_POSTED - menu is already posted
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
set_menu_sub(MENU * menu, WINDOW *win)
{
T((T_CALLED("set_menu_sub(%p,%p)"), (void *)menu, (void *)win));
if (menu)
{
if (menu->status & _POSTED)
RETURN(E_POSTED);
else
#if NCURSES_SP_FUNCS
{
/* We ensure that usersub is never null. So even if a null
WINDOW parameter is passed, we store the SCREENS stdscr.
The only MENU that can have a null usersub is the static
_nc_default_Menu.
*/
SCREEN *sp = _nc_screen_of(menu->usersub);
menu->usersub = win ? win : sp->_stdscr;
_nc_Calculate_Item_Length_and_Width(menu);
}
#else
menu->usersub = win;
#endif
}
else
_nc_Default_Menu.usersub = win;
RETURN(E_OK);
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : WINDOW* menu_sub(const MENU *menu)
|
| Description : Returns a pointer to the subwindow of the menu
|
| Return Values : NULL on error, otherwise a pointer to the window
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(WINDOW *)
menu_sub(const MENU * menu)
{
const MENU *m = Normalize_Menu(menu);
T((T_CALLED("menu_sub(%p)"), (const void *)menu));
returnWin(Get_Menu_Window(m));
}
/* m_sub.c ends here */