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 43 MODULE_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 +--------------------------------------------------------------------------*/ 56 MENU_EXPORT(MENU *) 57 NCURSES_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 108 MENU_EXPORT(MENU *) 109 new_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 +--------------------------------------------------------------------------*/ 126 MENU_EXPORT(int) 127 free_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