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 #define COLSPERROW 10 /* Default conf.text.columns_per_row */ 38 39 int bsddialog_init_notheme(void) 40 { 41 int i, j, c, error; 42 43 set_error_string(""); 44 45 if (initscr() == NULL) 46 RETURN_ERROR("Cannot init curses (initscr)"); 47 48 error = OK; 49 error += keypad(stdscr, TRUE); 50 nl(); 51 error += cbreak(); 52 error += noecho(); 53 curs_set(0); 54 if (error != OK) { 55 bsddialog_end(); 56 RETURN_ERROR("Cannot init curses (keypad and cursor)"); 57 } 58 59 c = 1; 60 error += start_color(); 61 for (i = 0; i < 8; i++) { 62 for (j = 0; j < 8; j++) { 63 error += init_pair(c, i, j); 64 c++; 65 } 66 } 67 68 hastermcolors = (error == OK && has_colors()) ? true : false; 69 70 return (BSDDIALOG_OK); 71 } 72 73 int bsddialog_init(void) 74 { 75 enum bsddialog_default_theme theme; 76 77 bsddialog_init_notheme(); 78 79 if (bsddialog_hascolors()) 80 theme = BSDDIALOG_THEME_FLAT; 81 else 82 theme = BSDDIALOG_THEME_BLACKWHITE; 83 84 if (bsddialog_set_default_theme(theme) != 0) { 85 bsddialog_end(); 86 return (BSDDIALOG_ERROR); 87 } 88 89 return (BSDDIALOG_OK); 90 } 91 92 int bsddialog_end(void) 93 { 94 if (endwin() != OK) 95 RETURN_ERROR("Cannot end curses (endwin)"); 96 97 return (BSDDIALOG_OK); 98 } 99 100 int bsddialog_backtitle(struct bsddialog_conf *conf, const char *backtitle) 101 { 102 move(0, 1); 103 clrtoeol(); 104 addstr(backtitle); 105 if (conf->no_lines != true) 106 mvhline(1, 1, conf->ascii_lines ? '-' : ACS_HLINE, 107 SCREENCOLS - 2); 108 109 refresh(); 110 111 return (BSDDIALOG_OK); 112 } 113 114 const char *bsddialog_geterror(void) 115 { 116 return (get_error_string()); 117 } 118 119 int bsddialog_initconf(struct bsddialog_conf *conf) 120 { 121 if (conf == NULL) 122 RETURN_ERROR("conf is NULL"); 123 if (sizeof(*conf) != sizeof(struct bsddialog_conf)) 124 RETURN_ERROR("Bad conf size"); 125 126 memset(conf, 0, sizeof(struct bsddialog_conf)); 127 conf->y = BSDDIALOG_CENTER; 128 conf->x = BSDDIALOG_CENTER; 129 conf->shadow = true; 130 conf->text.cols_per_row = COLSPERROW; 131 132 return (BSDDIALOG_OK); 133 } 134 135 int bsddialog_clearterminal(void) 136 { 137 if (clear() != OK) 138 RETURN_ERROR("Cannot clear the terminal"); 139 refresh(); 140 141 return (BSDDIALOG_OK); 142 }