addchnstr.c revision 1.3 
1/*	$NetBSD: addchnstr.c,v 1.3 2007/01/21 13:25:36 jdc Exp $	*/
2
3/*
4 * Copyright (c) 2003 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Douwe Kiela (virtus@wanadoo.nl).
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 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *        This product includes software developed by the NetBSD
21 *        Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 *    contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39#include <sys/cdefs.h>
40#ifndef lint
41__RCSID("$NetBSD: addchnstr.c,v 1.3 2007/01/21 13:25:36 jdc Exp $");
42#endif				/* not lint */
43
44#include <stdlib.h>
45
46#include "curses.h"
47#include "curses_private.h"
48
49#ifndef _CURSES_USE_MACROS
50
51/*
52 * addchstr --
53 *      Add a string to stdscr starting at (_cury, _curx).
54 */
55int
56addchstr(const chtype *chstr)
57{
58	return waddchnstr(stdscr, chstr, -1);
59}
60
61/*
62 * waddchstr --
63 *      Add a string to the given window starting at (_cury, _curx).
64 */
65int
66waddchstr(WINDOW *win, const chtype *chstr)
67{
68	return waddchnstr(win, chstr, -1);
69}
70
71/*
72 * addchnstr --
73 *      Add a string (at most n characters) to stdscr starting
74 *	at (_cury, _curx).  If n is negative, add the entire string.
75 */
76int
77addchnstr(const chtype *chstr, int n)
78{
79	return waddchnstr(stdscr, chstr, n);
80}
81
82/*
83 * mvaddchstr --
84 *      Add a string to stdscr starting at (y, x)
85 */
86int
87mvaddchstr(int y, int x, const chtype *chstr)
88{
89	return mvwaddchnstr(stdscr, y, x, chstr, -1);
90}
91
92/*
93 * mvwaddchstr --
94 *      Add a string to the given window starting at (y, x)
95 */
96int
97mvwaddchstr(WINDOW *win, int y, int x, const chtype *chstr)
98{
99	return mvwaddchnstr(win, y, x, chstr, -1);
100}
101
102/*
103 * mvaddchnstr --
104 *      Add a string of at most n characters to stdscr
105 *      starting at (y, x).
106 */
107int
108mvaddchnstr(int y, int x, const chtype *chstr, int n)
109{
110	return mvwaddchnstr(stdscr, y, x, chstr, n);
111}
112
113/*
114 * mvwaddchnstr --
115 *      Add a string of at most n characters to the given window
116 *      starting at (y, x).
117 */
118int
119mvwaddchnstr(WINDOW *win, int y, int x, const chtype *chstr, int n)
120{
121	if (wmove(win, y, x) == ERR)
122		return ERR;
123
124	return waddchnstr(win, chstr, n);
125}
126
127#endif
128
129/*
130 * waddchnstr --
131 *	Add a string (at most n characters) to the given window
132 *	starting at (_cury, _curx).  If n is negative, add the
133 *	entire string.
134 */
135int
136waddchnstr(WINDOW *win, const chtype *chstr, int n)
137{
138	size_t  len;
139	const chtype *chp;
140	attr_t	attr;
141	char	*ocp, *cp, *start;
142	int i, ret;
143
144#ifdef DEBUG
145	__CTRACE(__CTRACE_INPUT, "waddchnstr: win = %p, chstr = %p, n = %d\n",
146	    win, chstr, n);
147#endif
148
149	if (n >= 0)
150		for (chp = chstr, len = 0; n-- && *chp++; ++len);
151	else
152		for (chp = chstr, len = 0; *chp++; ++len);
153
154	if ((ocp = malloc(len + 1)) == NULL)
155		return ERR;
156	chp = chstr;
157	cp = ocp;
158	start = ocp;
159	i = 0;
160	attr = (*chp) & __ATTRIBUTES;
161	while (len) {
162		*cp = (*chp) & __CHARTEXT;
163		cp++;
164		chp++;
165		i++;
166		len--;
167		if (((*chp) & __ATTRIBUTES) != attr) {
168			*cp = '\0';
169			if (__waddbytes(win, start, i, attr) == ERR) {
170				free(ocp);
171				return ERR;
172			}
173			attr = (*chp) & __ATTRIBUTES;
174			start = cp;
175			i = 0;
176		}
177	}
178	*cp = '\0';
179	ret = __waddbytes(win, start, i, attr);
180	free(ocp);
181	return ret;
182}
183