1 /* $NetBSD: post.c,v 1.12 2003/04/19 12:52:39 blymn Exp $ */ 2 3 /*- 4 * Copyright (c) 1998-1999 Brett Lymn (blymn@baea.com.au, brett_lymn@yahoo.com.au) 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * 27 */ 28 29 #include <sys/cdefs.h> 30 __RCSID("$NetBSD: post.c,v 1.12 2003/04/19 12:52:39 blymn Exp $"); 31 32 #include <menu.h> 33 #include <stdlib.h> 34 #include "internals.h" 35 36 /* 37 * Post the menu to the screen. Call any defined init routines and then 38 * draw the menu on the screen. 39 */ 40 int 41 post_menu(MENU *menu) 42 { 43 int maxx, maxy, i; 44 45 if (menu == NULL) 46 return E_BAD_ARGUMENT; 47 if (menu->posted == 1) 48 return E_POSTED; 49 if (menu->in_init == 1) 50 return E_BAD_STATE; 51 if (menu->items == NULL) 52 return E_NOT_CONNECTED; 53 if (*menu->items == NULL) 54 return E_NOT_CONNECTED; 55 56 menu->in_init = 1; 57 58 if (menu->menu_init != NULL) 59 menu->menu_init(menu); 60 if (menu->item_init != NULL) 61 menu->item_init(menu); 62 63 menu->in_init = 0; 64 65 getmaxyx(menu->scrwin, maxy, maxx); 66 if ((maxx == ERR) || (maxy == ERR)) return E_SYSTEM_ERROR; 67 68 if ((menu->cols * menu->max_item_width + menu->cols - 1) > maxx) 69 return E_NO_ROOM; 70 71 if ((menu->opts & O_RADIO) != O_RADIO) { 72 for (i = 0; i < menu->item_count; i++) { 73 menu->items[i]->selected = 0; 74 } 75 } 76 77 menu->posted = 1; 78 return _menui_draw_menu(menu); 79 80 } 81 82 /* 83 * Unpost the menu. Call any defined termination routines and remove the 84 * menu from the screen. 85 */ 86 int 87 unpost_menu(MENU *menu) 88 { 89 if (menu == NULL) 90 return E_BAD_ARGUMENT; 91 if (menu->posted != 1) 92 return E_NOT_POSTED; 93 if (menu->in_init == 1) 94 return E_BAD_STATE; 95 if (menu->item_term != NULL) 96 menu->item_term(menu); 97 98 if (menu->menu_term != NULL) 99 menu->menu_term(menu); 100 101 menu->posted = 0; 102 werase(menu->scrwin); 103 wrefresh(menu->scrwin); 104 return E_OK; 105 } 106 107 108