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