inch.c revision 1.12 
1/*	$NetBSD: inch.c,v 1.12 2018/11/18 22:34:32 uwe 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 1.12 2018/11/18 22:34:32 uwe 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 */
46chtype
47inch(void)
48{
49
50	return winch(stdscr);
51}
52
53/*
54 * mvinch --
55 *      Return character at position (y, x) from stdscr.
56 */
57chtype
58mvinch(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 */
68chtype
69mvwinch(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 */
84chtype
85winch(WINDOW *win)
86{
87	chtype	ch;
88	attr_t	attr;
89
90	ch = (chtype) ((win)->alines[(win)->cury]->line[(win)->curx].ch &
91	    __CHARTEXT);
92	attr = (attr_t) ((win)->alines[(win)->cury]->line[(win)->curx].attr &
93	    __ATTRIBUTES);
94	if (__using_color && ((attr & __COLOR) == __default_color))
95		attr &= ~__COLOR;
96	return (ch | attr);
97}
98