1/* $OpenBSD: m_new.c,v 1.9 2023/10/17 09:52:10 nicm Exp $ */ 2 3/**************************************************************************** 4 * Copyright 2020,2021 Thomas E. Dickey * 5 * Copyright 1998-2009,2010 Free Software Foundation, Inc. * 6 * * 7 * Permission is hereby granted, free of charge, to any person obtaining a * 8 * copy of this software and associated documentation files (the * 9 * "Software"), to deal in the Software without restriction, including * 10 * without limitation the rights to use, copy, modify, merge, publish, * 11 * distribute, distribute with modifications, sublicense, and/or sell * 12 * copies of the Software, and to permit persons to whom the Software is * 13 * furnished to do so, subject to the following conditions: * 14 * * 15 * The above copyright notice and this permission notice shall be included * 16 * in all copies or substantial portions of the Software. * 17 * * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 25 * * 26 * Except as contained in this notice, the name(s) of the above copyright * 27 * holders shall not be used in advertising or otherwise to promote the * 28 * sale, use or other dealings in this Software without prior written * 29 * authorization. * 30 ****************************************************************************/ 31 32/**************************************************************************** 33 * Author: Juergen Pfeifer, 1995,1997 * 34 ****************************************************************************/ 35 36/*************************************************************************** 37* Module m_new * 38* Creation and destruction of new menus * 39***************************************************************************/ 40 41#include "menu.priv.h" 42 43MODULE_ID("$Id: m_new.c,v 1.9 2023/10/17 09:52:10 nicm Exp $") 44 45/*--------------------------------------------------------------------------- 46| Facility : libnmenu 47| Function : MENU* _nc_new_menu(SCREEN*, ITEM **items) 48| 49| Description : Creates a new menu connected to the item pointer 50| array items and returns a pointer to the new menu. 51| The new menu is initialized with the values from the 52| default menu. 53| 54| Return Values : NULL on error 55+--------------------------------------------------------------------------*/ 56MENU_EXPORT(MENU *) 57NCURSES_SP_NAME(new_menu) (NCURSES_SP_DCLx ITEM **items) 58{ 59 int err = E_SYSTEM_ERROR; 60 MENU *menu = typeCalloc(MENU, 1); 61 62 T((T_CALLED("new_menu(%p,%p)"), (void *)SP_PARM, (void *)items)); 63 if (menu) 64 { 65 T((T_CREATE("menu %p"), (void *)menu)); 66 *menu = _nc_Default_Menu; 67 menu->status = 0; 68 menu->rows = menu->frows; 69 menu->cols = menu->fcols; 70#if NCURSES_SP_FUNCS 71 /* This ensures userwin and usersub are always non-null, 72 so we can derive always the SCREEN that this menu is 73 running on. */ 74 menu->userwin = SP_PARM->_stdscr; 75 menu->usersub = SP_PARM->_stdscr; 76#endif 77 if (items && *items) 78 { 79 if (!_nc_Connect_Items(menu, items)) 80 { 81 err = E_NOT_CONNECTED; 82 free(menu); 83 menu = (MENU *)0; 84 } 85 else 86 err = E_OK; 87 } 88 } 89 90 if (!menu) 91 SET_ERROR(err); 92 93 returnMenu(menu); 94} 95 96/*--------------------------------------------------------------------------- 97| Facility : libnmenu 98| Function : MENU *new_menu(ITEM **items) 99| 100| Description : Creates a new menu connected to the item pointer 101| array items and returns a pointer to the new menu. 102| The new menu is initialized with the values from the 103| default menu. 104| 105| Return Values : NULL on error 106+--------------------------------------------------------------------------*/ 107#if NCURSES_SP_FUNCS 108MENU_EXPORT(MENU *) 109new_menu(ITEM **items) 110{ 111 return NCURSES_SP_NAME(new_menu) (CURRENT_SCREEN, items); 112} 113#endif 114 115/*--------------------------------------------------------------------------- 116| Facility : libnmenu 117| Function : int free_menu(MENU *menu) 118| 119| Description : Disconnects menu from its associated item pointer 120| array and frees the storage allocated for the menu. 121| 122| Return Values : E_OK - success 123| E_BAD_ARGUMENT - Invalid menu pointer passed 124| E_POSTED - Menu is already posted 125+--------------------------------------------------------------------------*/ 126MENU_EXPORT(int) 127free_menu(MENU *menu) 128{ 129 T((T_CALLED("free_menu(%p)"), (void *)menu)); 130 if (!menu) 131 RETURN(E_BAD_ARGUMENT); 132 133 if (menu->status & _POSTED) 134 RETURN(E_POSTED); 135 136 if (menu->items) 137 _nc_Disconnect_Items(menu); 138 139 if ((menu->status & _MARK_ALLOCATED) && menu->mark) 140 free(menu->mark); 141 142 free(menu); 143 RETURN(E_OK); 144} 145 146/* m_new.c ends here */ 147