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
bsddialog_init_notheme(void)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
bsddialog_init(void)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
bsddialog_end(void)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
bsddialog_backtitle(struct bsddialog_conf * conf,const char * backtitle)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 if (conf->ascii_lines)
112 mvhline(1, 1, '-', SCREENCOLS - 2);
113 else
114 mvhline_set(1, 1, WACS_HLINE, SCREENCOLS - 2);
115 }
116
117 refresh();
118
119 return (BSDDIALOG_OK);
120 }
121
bsddialog_inmode(void)122 bool bsddialog_inmode(void)
123 {
124 return (in_bsddialog_mode);
125 }
126
bsddialog_geterror(void)127 const char *bsddialog_geterror(void)
128 {
129 return (get_error_string());
130 }
131
bsddialog_initconf(struct bsddialog_conf * conf)132 int bsddialog_initconf(struct bsddialog_conf *conf)
133 {
134 CHECK_PTR(conf);
135
136 memset(conf, 0, sizeof(struct bsddialog_conf));
137 conf->y = BSDDIALOG_CENTER;
138 conf->x = BSDDIALOG_CENTER;
139 conf->shadow = true;
140 conf->text.cols_per_row = DEFAULT_COLS_PER_ROW;
141
142 return (BSDDIALOG_OK);
143 }
144
bsddialog_refresh(void)145 void bsddialog_refresh(void)
146 {
147 refresh();
148 }
149
bsddialog_clear(unsigned int y)150 void bsddialog_clear(unsigned int y)
151 {
152 move(y, 0);
153 clrtobot();
154 refresh();
155 }