145 lines
5.7 KiB
C
145 lines
5.7 KiB
C
/****************************************************************************
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* Copyright 2020,2021 Thomas E. Dickey *
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* Copyright 1998-2009,2010 Free Software Foundation, Inc. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/****************************************************************************
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* Author: Juergen Pfeifer, 1995,1997 *
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****************************************************************************/
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/***************************************************************************
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* Module m_new *
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* Creation and destruction of new menus *
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***************************************************************************/
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#include "menu.priv.h"
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MODULE_ID("$Id: m_new.c,v 1.26 2021/02/13 19:43:10 tom Exp $")
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/*---------------------------------------------------------------------------
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| Facility : libnmenu
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| Function : MENU* _nc_new_menu(SCREEN*, ITEM **items)
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| Description : Creates a new menu connected to the item pointer
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| array items and returns a pointer to the new menu.
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| The new menu is initialized with the values from the
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| default menu.
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| Return Values : NULL on error
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+--------------------------------------------------------------------------*/
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MENU_EXPORT(MENU *)
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NCURSES_SP_NAME(new_menu) (NCURSES_SP_DCLx ITEM **items)
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{
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int err = E_SYSTEM_ERROR;
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MENU *menu = typeCalloc(MENU, 1);
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T((T_CALLED("new_menu(%p,%p)"), (void *)SP_PARM, (void *)items));
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if (menu)
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{
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T((T_CREATE("menu %p"), (void *)menu));
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*menu = _nc_Default_Menu;
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menu->status = 0;
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menu->rows = menu->frows;
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menu->cols = menu->fcols;
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#if NCURSES_SP_FUNCS
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/* This ensures userwin and usersub are always non-null,
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so we can derive always the SCREEN that this menu is
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running on. */
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menu->userwin = SP_PARM->_stdscr;
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menu->usersub = SP_PARM->_stdscr;
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#endif
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if (items && *items)
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{
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if (!_nc_Connect_Items(menu, items))
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{
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err = E_NOT_CONNECTED;
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free(menu);
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menu = (MENU *)0;
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}
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else
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err = E_OK;
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}
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}
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if (!menu)
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SET_ERROR(err);
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returnMenu(menu);
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}
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/*---------------------------------------------------------------------------
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| Facility : libnmenu
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| Function : MENU *new_menu(ITEM **items)
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| Description : Creates a new menu connected to the item pointer
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| array items and returns a pointer to the new menu.
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| The new menu is initialized with the values from the
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| default menu.
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| Return Values : NULL on error
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+--------------------------------------------------------------------------*/
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#if NCURSES_SP_FUNCS
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MENU_EXPORT(MENU *)
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new_menu(ITEM **items)
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{
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return NCURSES_SP_NAME(new_menu) (CURRENT_SCREEN, items);
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}
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#endif
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/*---------------------------------------------------------------------------
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| Facility : libnmenu
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| Function : int free_menu(MENU *menu)
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| Description : Disconnects menu from its associated item pointer
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| array and frees the storage allocated for the menu.
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| Return Values : E_OK - success
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| E_BAD_ARGUMENT - Invalid menu pointer passed
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| E_POSTED - Menu is already posted
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+--------------------------------------------------------------------------*/
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MENU_EXPORT(int)
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free_menu(MENU *menu)
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{
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T((T_CALLED("free_menu(%p)"), (void *)menu));
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if (!menu)
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RETURN(E_BAD_ARGUMENT);
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if (menu->status & _POSTED)
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RETURN(E_POSTED);
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if (menu->items)
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_nc_Disconnect_Items(menu);
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if ((menu->status & _MARK_ALLOCATED) && menu->mark)
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free(menu->mark);
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free(menu);
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RETURN(E_OK);
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}
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/* m_new.c ends here */
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