1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2021-2022 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 <curses.h> 29 #include <stdlib.h> 30 #include <string.h> 31 #include <unistd.h> 32 33 #include "bsddialog.h" 34 #include "bsddialog_theme.h" 35 #include "lib_util.h" 36 37 extern struct bsddialog_theme t; 38 39 int bsddialog_init(void) 40 { 41 int i, j, c, error; 42 enum bsddialog_default_theme theme; 43 44 set_error_string(""); 45 46 if (initscr() == NULL) 47 RETURN_ERROR("Cannot init curses (initscr)"); 48 49 error = OK; 50 error += keypad(stdscr, TRUE); 51 nl(); 52 error += cbreak(); 53 error += noecho(); 54 curs_set(0); 55 if (error != OK) { 56 bsddialog_end(); 57 RETURN_ERROR("Cannot init curses (keypad and cursor)"); 58 } 59 60 c = 1; 61 error += start_color(); 62 for (i = 0; i < 8; i++) 63 for (j = 0; j < 8; j++) { 64 error += init_pair(c, i, j); 65 c++; 66 } 67 68 if (error == OK) 69 theme = BSDDIALOG_THEME_DEFAULT; 70 else 71 theme = BSDDIALOG_THEME_BLACKWHITE; 72 73 if (bsddialog_set_default_theme(theme) != 0) { 74 bsddialog_end(); 75 return (BSDDIALOG_ERROR); 76 } 77 78 return (BSDDIALOG_OK); 79 } 80 81 int bsddialog_end(void) 82 { 83 if (endwin() != OK) 84 RETURN_ERROR("Cannot end curses (endwin)"); 85 86 return (BSDDIALOG_OK); 87 } 88 89 int bsddialog_backtitle(struct bsddialog_conf *conf, const char *backtitle) 90 { 91 mvaddstr(0, 1, backtitle); 92 if (conf->no_lines != true) 93 mvhline(1, 1, conf->ascii_lines ? '-' : ACS_HLINE, 94 SCREENCOLS - 2); 95 96 refresh(); 97 98 return (BSDDIALOG_OK); 99 } 100 101 const char *bsddialog_geterror(void) 102 { 103 return (get_error_string()); 104 } 105 106 int bsddialog_initconf(struct bsddialog_conf *conf) 107 { 108 if (conf == NULL) 109 RETURN_ERROR("conf is NULL"); 110 if (sizeof(*conf) != sizeof(struct bsddialog_conf)) 111 RETURN_ERROR("Bad conf size"); 112 113 memset(conf, 0, sizeof(struct bsddialog_conf)); 114 conf->y = BSDDIALOG_CENTER; 115 conf->x = BSDDIALOG_CENTER; 116 conf->shadow = true; 117 118 return (BSDDIALOG_OK); 119 } 120 121 int bsddialog_clearterminal(void) 122 { 123 if (clear() != OK) 124 RETURN_ERROR("Cannot clear the terminal"); 125 refresh(); 126 127 return (BSDDIALOG_OK); 128 }