1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2021-2023 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 <string.h> 30 31 #include "bsddialog.h" 32 #include "bsddialog_theme.h" 33 #include "lib_util.h" 34 35 #define DEFAULT_COLS_PER_ROW 10 /* Default conf.text.columns_per_row */ 36 37 static bool in_bsddialog_mode = false; 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 in_bsddialog_mode = true; 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 69 hastermcolors = (error == OK && has_colors()) ? true : false; 70 71 return (BSDDIALOG_OK); 72 } 73 74 int bsddialog_init(void) 75 { 76 enum bsddialog_default_theme theme; 77 78 bsddialog_init_notheme(); 79 80 if (bsddialog_hascolors()) 81 theme = BSDDIALOG_THEME_FLAT; 82 else 83 theme = BSDDIALOG_THEME_BLACKWHITE; 84 85 if (bsddialog_set_default_theme(theme) != 0) { 86 bsddialog_end(); 87 in_bsddialog_mode = false; 88 return (BSDDIALOG_ERROR); 89 } 90 91 return (BSDDIALOG_OK); 92 } 93 94 int bsddialog_end(void) 95 { 96 if (endwin() != OK) 97 RETURN_ERROR("Cannot end curses (endwin)"); 98 in_bsddialog_mode = false; 99 100 return (BSDDIALOG_OK); 101 } 102 103 int bsddialog_backtitle(struct bsddialog_conf *conf, const char *backtitle) 104 { 105 CHECK_PTR(conf); 106 107 move(0, 1); 108 clrtoeol(); 109 addstr(CHECK_STR(backtitle)); 110 if (conf->no_lines != true) 111 mvhline(1, 1, conf->ascii_lines ? '-' : ACS_HLINE, 112 SCREENCOLS - 2); 113 114 refresh(); 115 116 return (BSDDIALOG_OK); 117 } 118 119 bool bsddialog_inmode(void) 120 { 121 return (in_bsddialog_mode); 122 } 123 124 const char *bsddialog_geterror(void) 125 { 126 return (get_error_string()); 127 } 128 129 int bsddialog_initconf(struct bsddialog_conf *conf) 130 { 131 CHECK_PTR(conf); 132 133 memset(conf, 0, sizeof(struct bsddialog_conf)); 134 conf->y = BSDDIALOG_CENTER; 135 conf->x = BSDDIALOG_CENTER; 136 conf->shadow = true; 137 conf->text.cols_per_row = DEFAULT_COLS_PER_ROW; 138 139 return (BSDDIALOG_OK); 140 } 141 142 void bsddialog_refresh(void) 143 { 144 refresh(); 145 } 146 147 void bsddialog_clear(unsigned int y) 148 { 149 move(y, 0); 150 clrtobot(); 151 refresh(); 152 }