1 /* $NetBSD: post.c,v 1.4 1999/12/22 14:38:12 kleink 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 withough 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 <menu.h> 30 #include <stdlib.h> 31 #include "internals.h" 32 33 /* 34 * Post the menu to the screen. Call any defined init routines and then 35 * draw the menu on the screen. 36 */ 37 int 38 post_menu(menu) 39 MENU *menu; 40 { 41 int maxx, maxy, i; 42 43 if (menu == NULL) 44 return E_BAD_ARGUMENT; 45 if (menu->posted == 1) 46 return E_POSTED; 47 if (menu->in_init == 1) 48 return E_BAD_STATE; 49 if (menu->items == NULL) 50 return E_NOT_CONNECTED; 51 if (*menu->items == NULL) 52 return E_NOT_CONNECTED; 53 if (menu->menu_win == NULL) 54 return E_BAD_ARGUMENT; 55 56 getmaxyx(menu->menu_subwin, maxy, maxx); 57 if ((maxx == ERR) || (maxy == ERR)) return E_SYSTEM_ERROR; 58 59 menu->in_init = 1; 60 menu->cur_item = 0; /* reset current item in case it was set before */ 61 menu->top_row = 0; /* and the top row too */ 62 if (menu->pattern != NULL) { /* and the pattern buffer....sigh */ 63 free(menu->pattern); 64 menu->plen = 0; 65 menu->match_len = 0; 66 } 67 68 if (menu->menu_init != NULL) 69 menu->menu_init(menu); 70 if (menu->item_init != NULL) 71 menu->item_init(menu); 72 73 menu->in_init = 0; 74 75 if (menu->menu_subwin == NULL) { 76 menu->we_created = 1; 77 menu->menu_subwin = subwin(menu->menu_win, menu->rows, 78 menu->cols * menu->max_item_width, 79 0, 0); 80 if (menu->menu_subwin == NULL) { 81 menu->we_created = 0; 82 return E_SYSTEM_ERROR; 83 } 84 } 85 86 if ((menu->cols * menu->max_item_width + menu->cols - 1) > maxx) 87 return E_NO_ROOM; 88 89 for (i = 0; i < menu->item_count; i++) { 90 menu->items[i]->selected = 0; 91 } 92 93 menu->posted = 1; 94 return _menui_draw_menu(menu); 95 96 } 97 98 /* 99 * Unpost the menu. Call any defined termination routines and remove the 100 * menu from the screen. 101 */ 102 int 103 unpost_menu(menu) 104 MENU *menu; 105 { 106 if (menu == NULL) 107 return E_BAD_ARGUMENT; 108 if (menu->posted != 1) 109 return E_NOT_POSTED; 110 if (menu->in_init == 1) 111 return E_BAD_STATE; 112 if (menu->menu_subwin == NULL) 113 return E_SYSTEM_ERROR; 114 if (menu->menu_win == NULL) 115 return E_SYSTEM_ERROR; 116 117 if (menu->item_term != NULL) 118 menu->item_term(menu); 119 120 if (menu->menu_term != NULL) 121 menu->menu_term(menu); 122 123 menu->posted = 0; 124 werase(menu->menu_subwin); 125 wrefresh(menu->menu_subwin); 126 delwin(menu->menu_subwin); 127 if (menu->we_created == 1) menu->menu_subwin = NULL; 128 wrefresh(menu->menu_win); 129 return E_OK; 130 } 131 132 133