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/****************************************************************************
* Copyright (c) 1998-2009,2010 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. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* 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 *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/
/****************************************************************************
* Author: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
/***************************************************************************
* Module m_new *
* Creation and destruction of new menus *
***************************************************************************/
#include "menu.priv.h"
MODULE_ID("$Id: m_new.c,v 1.21 2010/01/23 21:20:11 tom Exp $")
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : MENU* _nc_new_menu(SCREEN*, ITEM **items)
|
| Description : Creates a new menu connected to the item pointer
| array items and returns a pointer to the new menu.
| The new menu is initialized with the values from the
| default menu.
|
| Return Values : NULL on error
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(MENU *)
NCURSES_SP_NAME(new_menu) (NCURSES_SP_DCLx ITEM ** items)
{
int err = E_SYSTEM_ERROR;
MENU *menu = typeCalloc(MENU, 1);
T((T_CALLED("new_menu(%p,%p)"), (void *)SP_PARM, (void *)items));
if (menu)
{
*menu = _nc_Default_Menu;
menu->status = 0;
menu->rows = menu->frows;
menu->cols = menu->fcols;
#if NCURSES_SP_FUNCS
/* This ensures userwin and usersub are always non-null,
so we can derive always the SCREEN that this menu is
running on. */
menu->userwin = SP_PARM->_stdscr;
menu->usersub = SP_PARM->_stdscr;
#endif
if (items && *items)
{
if (!_nc_Connect_Items(menu, items))
{
err = E_NOT_CONNECTED;
free(menu);
menu = (MENU *) 0;
}
else
err = E_OK;
}
}
if (!menu)
SET_ERROR(err);
returnMenu(menu);
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : MENU *new_menu(ITEM **items)
|
| Description : Creates a new menu connected to the item pointer
| array items and returns a pointer to the new menu.
| The new menu is initialized with the values from the
| default menu.
|
| Return Values : NULL on error
+--------------------------------------------------------------------------*/
#if NCURSES_SP_FUNCS
NCURSES_EXPORT(MENU *)
new_menu(ITEM ** items)
{
return NCURSES_SP_NAME(new_menu) (CURRENT_SCREEN, items);
}
#endif
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int free_menu(MENU *menu)
|
| Description : Disconnects menu from its associated item pointer
| array and frees the storage allocated for the menu.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - Invalid menu pointer passed
| E_POSTED - Menu is already posted
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
free_menu(MENU * menu)
{
T((T_CALLED("free_menu(%p)"), (void *)menu));
if (!menu)
RETURN(E_BAD_ARGUMENT);
if (menu->status & _POSTED)
RETURN(E_POSTED);
if (menu->items)
_nc_Disconnect_Items(menu);
if ((menu->status & _MARK_ALLOCATED) && menu->mark)
free(menu->mark);
free(menu);
RETURN(E_OK);
}
/* m_new.c ends here */
|
