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/***************************************************************************
* COPYRIGHT NOTICE *
****************************************************************************
* ncurses is copyright (C) 1992-1995 *
* Zeyd M. Ben-Halim *
* zmbenhal@netcom.com *
* Eric S. Raymond *
* esr@snark.thyrsus.com *
* *
* Permission is hereby granted to reproduce and distribute ncurses *
* by any means and for any fee, whether alone or as part of a *
* larger distribution, in source or in binary form, PROVIDED *
* this notice is included with any such distribution, and is not *
* removed from any of its header files. Mention of ncurses in any *
* applications linked with it is highly appreciated. *
* *
* ncurses comes AS IS with no warranty, implied or expressed. *
* *
***************************************************************************/
/***************************************************************************
* Module menu_win *
* Menus window and subwindow association routines *
***************************************************************************/
#include "menu.priv.h"
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_menu_win(MENU *menu, WINDOW *win)
|
| Description : Sets the window of the menu.
|
| Return Values : E_OK - success
| E_POSTED - menu is already posted
+--------------------------------------------------------------------------*/
int set_menu_win(MENU *menu, WINDOW *win)
{
if (menu)
{
if ( menu->status & _POSTED )
RETURN(E_POSTED);
menu->userwin = win;
_nc_Calculate_Item_Length_and_Width(menu);
}
else
_nc_Default_Menu.userwin = win;
RETURN(E_OK);
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : WINDOW *menu_win(const MENU *)
|
| Description : Returns pointer to the window of the menu
|
| Return Values : NULL on error, otherwise pointer to window
+--------------------------------------------------------------------------*/
WINDOW *menu_win(const MENU *menu)
{
return Normalize_Menu(menu)->userwin;
}
/*---------------------------------------------------------------------------
| 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
+--------------------------------------------------------------------------*/
int set_menu_sub(MENU *menu, WINDOW *win)
{
if (menu)
{
if ( menu->status & _POSTED )
RETURN(E_POSTED);
menu->usersub = win;
_nc_Calculate_Item_Length_and_Width(menu);
}
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
+--------------------------------------------------------------------------*/
WINDOW *menu_sub(const MENU * menu)
{
return Normalize_Menu(menu)->usersub;
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int scale_menu(const MENU *menu)
|
| Description : Returns the minimum window size necessary for the
| subwindow of menu.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid menu pointer
| E_NOT_CONNECTED - no items are connected to menu
+--------------------------------------------------------------------------*/
int scale_menu(const MENU *menu, int *rows, int *cols)
{
if (!menu)
RETURN( E_BAD_ARGUMENT );
if (menu->items && *(menu->items))
{
if (rows)
*rows = menu->height;
if (cols)
*cols = menu->width;
RETURN(E_OK);
}
else
RETURN( E_NOT_CONNECTED );
}
/* m_win.c ends here */
|
