/****************************************************************************
* Copyright 2020 Thomas E. Dickey *
* Copyright 1998-2004,2010 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
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****************************************************************************/
/****************************************************************************
* Author: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
/***************************************************************************
* Module m_opts *
* Menus option routines *
***************************************************************************/
#include "menu.priv.h"
MODULE_ID("$Id: m_opts.c,v 1.21 2020/02/02 23:34:34 tom Exp $")
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_menu_opts(MENU *menu, Menu_Options opts)
|
| Description : Set the options for this menu. If the new settings
| end up in a change of the geometry of the menu, it
| will be recalculated. This operation is forbidden if
| the menu is already posted.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid menu options
| E_POSTED - menu is already posted
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
set_menu_opts(MENU * menu, Menu_Options opts)
{
T((T_CALLED("set_menu_opts(%p,%d)"), (void *)menu, opts));
opts &= ALL_MENU_OPTS;
if (opts & ~ALL_MENU_OPTS)
RETURN(E_BAD_ARGUMENT);
if (menu)
{
if (menu->status & _POSTED)
RETURN(E_POSTED);
if ((opts & O_ROWMAJOR) != (menu->opt & O_ROWMAJOR))
{
/* we need this only if the layout really changed ... */
if (menu->items && menu->items[0])
{
menu->toprow = 0;
menu->curitem = menu->items[0];
assert(menu->curitem);
set_menu_format(menu, menu->frows, menu->fcols);
}
}
menu->opt = opts;
if (opts & O_ONEVALUE)
{
ITEM **item;
if (((item = menu->items) != (ITEM **) 0))
for (; *item; item++)
(*item)->value = FALSE;
}
if (opts & O_SHOWDESC) /* this also changes the geometry */
_nc_Calculate_Item_Length_and_Width(menu);
}
else
_nc_Default_Menu.opt = opts;
RETURN(E_OK);
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int menu_opts_off(MENU *menu, Menu_Options opts)
|
| Description : Switch off the options for this menu. If the new settings
| end up in a change of the geometry of the menu, it
| will be recalculated. This operation is forbidden if
| the menu is already posted.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid options
| E_POSTED - menu is already posted
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
menu_opts_off(MENU * menu, Menu_Options opts)
{
MENU *cmenu = menu; /* use a copy because set_menu_opts must detect
NULL menu itself to adjust its behavior */
T((T_CALLED("menu_opts_off(%p,%d)"), (void *)menu, opts));
opts &= ALL_MENU_OPTS;
if (opts & ~ALL_MENU_OPTS)
RETURN(E_BAD_ARGUMENT);
else
{
Normalize_Menu(cmenu);
opts = cmenu->opt & ~opts;
returnCode(set_menu_opts(menu, opts));
}
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int menu_opts_on(MENU *menu, Menu_Options opts)
|
| Description : Switch on the options for this menu. If the new settings
| end up in a change of the geometry of the menu, it
| will be recalculated. This operation is forbidden if
| the menu is already posted.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid menu options
| E_POSTED - menu is already posted
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
menu_opts_on(MENU * menu, Menu_Options opts)
{
MENU *cmenu = menu; /* use a copy because set_menu_opts must detect
NULL menu itself to adjust its behavior */
T((T_CALLED("menu_opts_on(%p,%d)"), (void *)menu, opts));
opts &= ALL_MENU_OPTS;
if (opts & ~ALL_MENU_OPTS)
RETURN(E_BAD_ARGUMENT);
else
{
Normalize_Menu(cmenu);
opts = cmenu->opt | opts;
returnCode(set_menu_opts(menu, opts));
}
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : Menu_Options menu_opts(const MENU *menu)
|
| Description : Return the options for this menu.
|
| Return Values : Menu options
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(Menu_Options)
menu_opts(const MENU * menu)
{
T((T_CALLED("menu_opts(%p)"), (const void *)menu));
returnMenuOpts(ALL_MENU_OPTS & Normalize_Menu(menu)->opt);
}
/* m_opts.c ends here */