1 /* $NetBSD: inch.c,v 1.15 2024/12/23 02:58:03 blymn Exp $ */
2
3 /*-
4 * Copyright (c) 1999 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Julian Coleman.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef lint
34 __RCSID("$NetBSD: inch.c,v 1.15 2024/12/23 02:58:03 blymn Exp $");
35 #endif /* not lint */
36
37 #include "curses.h"
38 #include "curses_private.h"
39
40 #ifndef _CURSES_USE_MACROS
41
42 /*
43 * inch --
44 * Return character at cursor position from stdscr.
45 */
46 chtype
inch(void)47 inch(void)
48 {
49
50 return winch(stdscr);
51 }
52
53 /*
54 * mvinch --
55 * Return character at position (y, x) from stdscr.
56 */
57 chtype
mvinch(int y,int x)58 mvinch(int y, int x)
59 {
60
61 return mvwinch(stdscr, y, x);
62 }
63
64 /*
65 * mvwinch --
66 * Return character at position (y, x) from the given window.
67 */
68 chtype
mvwinch(WINDOW * win,int y,int x)69 mvwinch(WINDOW *win, int y, int x)
70 {
71
72 if (wmove(win, y, x) == ERR)
73 return ERR;
74
75 return winch(win);
76 }
77
78 #endif
79
80 /*
81 * winch --
82 * Return character at cursor position.
83 */
84 chtype
winch(WINDOW * win)85 winch(WINDOW *win)
86 {
87 chtype ch;
88 attr_t attr;
89
90 if (__predict_false(win == NULL))
91 return ERR;
92
93 ch = (chtype) ((win)->alines[(win)->cury]->line[(win)->curx].ch &
94 __CHARTEXT);
95 attr = (attr_t) ((win)->alines[(win)->cury]->line[(win)->curx].attr &
96 __ATTRIBUTES);
97 if (__using_color && ((attr & __COLOR) == __default_color))
98 attr &= ~__COLOR;
99 return (ch | attr);
100 }
101