1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2021 Alfonso Sabato Siciliano 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <stdlib.h> 29 #include <string.h> 30 #include <unistd.h> 31 32 #ifdef PORTNCURSES 33 #include <ncurses/curses.h> 34 #else 35 #include <curses.h> 36 #endif 37 38 #include "bsddialog.h" 39 #include "lib_util.h" 40 #include "bsddialog_theme.h" 41 42 /* 43 * This file implements some public function not related to a specific widget. 44 * utils.h/c provides private functions to implement the library. 45 * theme.h/c is public API related to theme. 46 * Widgets implementation: 47 * infobox.c infobox 48 * messgebox.c msgbox - yesno 49 * menubox.c buildlist - checklist - menu - mixedlist - radiolist - treeview 50 * formbox.c inputbox - passwordbox - form - passwordform - mixedform 51 * editorbox.c editbox 52 * barbox.c gauge - mixedgauge - rangebox - pause 53 * timebox.c timebox - calendar 54 * commandbox.c prgbox - programbox - progressbox 55 * tailbox.c tailbox - tailboxbg - textbox 56 * filebox.c dselect - fselect 57 */ 58 59 extern struct bsddialog_theme t; 60 61 int bsddialog_init(void) 62 { 63 int i, j, c = 1, error = OK; 64 65 set_error_string(""); 66 67 if(initscr() == NULL) 68 RETURN_ERROR("Cannot init ncurses (initscr)"); 69 70 error += keypad(stdscr, TRUE); 71 nl(); 72 error += cbreak(); 73 error += noecho(); 74 curs_set(0); 75 if(error != OK) { 76 bsddialog_end(); 77 RETURN_ERROR("Cannot init ncurses (keypad and cursor)"); 78 } 79 80 error += start_color(); 81 for (i=0; i<8; i++) 82 for(j=0; j<8; j++) { 83 error += init_pair(c, i, j); 84 c++; 85 } 86 if(error != OK) { 87 bsddialog_end(); 88 RETURN_ERROR("Cannot init ncurses (colors)"); 89 } 90 91 if (bsddialog_set_default_theme(BSDDIALOG_THEME_DIALOG) != 0) 92 error = BSDDIALOG_ERROR; 93 94 return error; 95 } 96 97 int bsddialog_end(void) 98 { 99 100 if (endwin() != OK) 101 RETURN_ERROR("Cannot end ncurses (endwin)"); 102 103 return 0; 104 } 105 106 int bsddialog_backtitle(struct bsddialog_conf conf, char *backtitle) 107 { 108 109 mvaddstr(0, 1, backtitle); 110 if (conf.no_lines != true) 111 mvhline(1, 1, conf.ascii_lines ? '-' : ACS_HLINE, COLS-2); 112 113 refresh(); 114 115 return 0; 116 } 117 118 const char *bsddialog_geterror(void) 119 { 120 121 return get_error_string(); 122 } 123 124 int bsddialog_terminalheight(void) 125 { 126 127 return LINES; 128 } 129 130 int bsddialog_terminalwidth(void) 131 { 132 133 return COLS; 134 } 135 136 void bsddialog_initconf(struct bsddialog_conf *conf) 137 { 138 139 memset(conf, 0, sizeof(struct bsddialog_conf)); 140 conf->x = conf->y = BSDDIALOG_CENTER; 141 conf->shadow = true; 142 } 143