1 /**************************************************************************** 2 * Copyright (c) 1998-2004,2006 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /**************************************************************************** 30 * Author: Juergen Pfeifer, 1995,1997 * 31 ****************************************************************************/ 32 33 /*************************************************************************** 34 * Module m_new * 35 * Creation and destruction of new menus * 36 ***************************************************************************/ 37 38 #include "menu.priv.h" 39 40 MODULE_ID("$Id: m_new.c,v 1.18 2006/11/04 19:04:06 tom Exp $") 41 42 /*--------------------------------------------------------------------------- 43 | Facility : libnmenu 44 | Function : MENU *new_menu(ITEM **items) 45 | 46 | Description : Creates a new menu connected to the item pointer 47 | array items and returns a pointer to the new menu. 48 | The new menu is initialized with the values from the 49 | default menu. 50 | 51 | Return Values : NULL on error 52 +--------------------------------------------------------------------------*/ 53 NCURSES_EXPORT(MENU *) 54 new_menu(ITEM ** items) 55 { 56 int err = E_SYSTEM_ERROR; 57 MENU *menu = (MENU *) calloc(1, sizeof(MENU)); 58 59 T((T_CALLED("new_menu(%p)"), items)); 60 if (menu) 61 { 62 *menu = _nc_Default_Menu; 63 menu->status = 0; 64 menu->rows = menu->frows; 65 menu->cols = menu->fcols; 66 if (items && *items) 67 { 68 if (!_nc_Connect_Items(menu, items)) 69 { 70 err = E_NOT_CONNECTED; 71 free(menu); 72 menu = (MENU *) 0; 73 } 74 } 75 } 76 77 if (!menu) 78 SET_ERROR(err); 79 80 returnMenu(menu); 81 } 82 83 /*--------------------------------------------------------------------------- 84 | Facility : libnmenu 85 | Function : int free_menu(MENU *menu) 86 | 87 | Description : Disconnects menu from its associated item pointer 88 | array and frees the storage allocated for the menu. 89 | 90 | Return Values : E_OK - success 91 | E_BAD_ARGUMENT - Invalid menu pointer passed 92 | E_POSTED - Menu is already posted 93 +--------------------------------------------------------------------------*/ 94 NCURSES_EXPORT(int) 95 free_menu(MENU * menu) 96 { 97 T((T_CALLED("free_menu(%p)"), menu)); 98 if (!menu) 99 RETURN(E_BAD_ARGUMENT); 100 101 if (menu->status & _POSTED) 102 RETURN(E_POSTED); 103 104 if (menu->items) 105 _nc_Disconnect_Items(menu); 106 107 if ((menu->status & _MARK_ALLOCATED) && menu->mark) 108 free(menu->mark); 109 110 free(menu); 111 RETURN(E_OK); 112 } 113 114 /* m_new.c ends here */ 115