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 #ifdef PORTNCURSES 29 #include <ncurses/ncurses.h> 30 #else 31 #include <ncurses.h> 32 #endif 33 #include <stdlib.h> 34 #include <string.h> 35 #include <unistd.h> 36 37 #include "bsddialog.h" 38 #include "lib_util.h" 39 #include "bsddialog_theme.h" 40 41 /* 42 * This file implements public functions not related to a specific dialog. 43 * lib_utils.h/c: private functions to implement the library. 44 * theme.h/c: public API related to themes. 45 * Dialogs implementation: 46 * infobox.c infobox 47 * messgebox.c msgbox - yesno 48 * menubox.c buildlist - checklist - menu - mixedlist - radiolist 49 * formbox.c inputbox - passwordbox - form - passwordform - mixedform 50 * barbox.c gauge - mixedgauge - rangebox - pause - progressview 51 * textbox.c textbox 52 * timebox.c timebox - calendar 53 */ 54 55 extern struct bsddialog_theme t; 56 57 int bsddialog_init(void) 58 { 59 int i, j, c, error; 60 enum bsddialog_default_theme theme; 61 62 set_error_string(""); 63 64 if (initscr() == NULL) 65 RETURN_ERROR("Cannot init curses (initscr)"); 66 67 error = OK; 68 error += keypad(stdscr, TRUE); 69 nl(); 70 error += cbreak(); 71 error += noecho(); 72 curs_set(0); 73 if (error != OK) { 74 bsddialog_end(); 75 RETURN_ERROR("Cannot init curses (keypad and cursor)"); 76 } 77 78 c = 1; 79 error += start_color(); 80 for (i=0; i<8; i++) 81 for(j=0; j<8; j++) { 82 error += init_pair(c, i, j); 83 c++; 84 } 85 86 if (error == OK) 87 theme = BSDDIALOG_THEME_DEFAULT; 88 else 89 theme = BSDDIALOG_THEME_BLACKWHITE; 90 91 if (bsddialog_set_default_theme(theme) != 0) { 92 bsddialog_end(); 93 return (BSDDIALOG_ERROR); 94 } 95 96 return (BSDDIALOG_OK); 97 } 98 99 int bsddialog_end(void) 100 { 101 if (endwin() != OK) 102 RETURN_ERROR("Cannot end ncurses (endwin)"); 103 104 return (BSDDIALOG_OK); 105 } 106 107 int bsddialog_backtitle(struct bsddialog_conf *conf, char *backtitle) 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 (BSDDIALOG_OK); 116 } 117 118 const char *bsddialog_geterror(void) 119 { 120 return (get_error_string()); 121 } 122 123 int bsddialog_initconf(struct bsddialog_conf *conf) 124 { 125 if (conf == NULL) 126 RETURN_ERROR("conf is NULL"); 127 if (sizeof(*conf) != sizeof(struct bsddialog_conf)) 128 RETURN_ERROR("Bad conf size"); 129 130 memset(conf, 0, sizeof(struct bsddialog_conf)); 131 conf->y = BSDDIALOG_CENTER; 132 conf->x = BSDDIALOG_CENTER; 133 conf->shadow = true; 134 135 return (BSDDIALOG_OK); 136 } 137 138 int bsddialog_clearterminal(void) 139 { 140 if (clear() != OK) 141 RETURN_ERROR("Cannot clear the terminal"); 142 refresh(); 143 144 return (BSDDIALOG_OK); 145 } 146