1 /* $NetBSD: printw.c,v 1.22 2011/07/17 20:54:34 joerg Exp $ */
2
3 /*
4 * Copyright (c) 1981, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)printw.c 8.3 (Berkeley) 5/4/94";
36 #else
37 __RCSID("$NetBSD: printw.c,v 1.22 2011/07/17 20:54:34 joerg Exp $");
38 #endif
39 #endif /* not lint */
40
41 #include <stdarg.h>
42
43 #include "curses.h"
44 #include "curses_private.h"
45
46 /*
47 * printw and friends.
48 */
49
50 static int __winwrite __P((void *, const char *, int));
51
52 /*
53 * printw --
54 * Printf on the standard screen.
55 */
56 int
printw(const char * fmt,...)57 printw(const char *fmt,...)
58 {
59 va_list ap;
60 int ret;
61
62 va_start(ap, fmt);
63 ret = vw_printw(stdscr, fmt, ap);
64 va_end(ap);
65 return (ret);
66 }
67 /*
68 * wprintw --
69 * Printf on the given window.
70 */
71 int
wprintw(WINDOW * win,const char * fmt,...)72 wprintw(WINDOW *win, const char *fmt,...)
73 {
74 va_list ap;
75 int ret;
76
77 va_start(ap, fmt);
78 ret = vw_printw(win, fmt, ap);
79 va_end(ap);
80 return (ret);
81 }
82 /*
83 * mvprintw, mvwprintw --
84 * Implement the mvprintw commands. Due to the variable number of
85 * arguments, they cannot be macros. Sigh....
86 */
87 int
mvprintw(int y,int x,const char * fmt,...)88 mvprintw(int y, int x, const char *fmt,...)
89 {
90 va_list ap;
91 int ret;
92
93 if (move(y, x) != OK)
94 return (ERR);
95 va_start(ap, fmt);
96 ret = vw_printw(stdscr, fmt, ap);
97 va_end(ap);
98 return (ret);
99 }
100
101 int
mvwprintw(WINDOW * win,int y,int x,const char * fmt,...)102 mvwprintw(WINDOW * win, int y, int x, const char *fmt,...)
103 {
104 va_list ap;
105 int ret;
106
107 if (wmove(win, y, x) != OK)
108 return (ERR);
109
110 va_start(ap, fmt);
111 ret = vw_printw(win, fmt, ap);
112 va_end(ap);
113 return (ret);
114 }
115 /*
116 * Internal write-buffer-to-window function.
117 */
118 static int
__winwrite(cookie,buf,n)119 __winwrite(cookie, buf, n)
120 void *cookie;
121 const char *buf;
122 int n;
123 {
124 WINDOW *win;
125 int c;
126
127 for (c = n, win = cookie; --c >= 0;)
128 {
129 #ifdef DEBUG
130 __CTRACE(__CTRACE_MISC, "__winwrite: %c\n", *buf);
131 #endif
132 if (waddch(win, (chtype) (*buf++ & __CHARTEXT)) == ERR)
133 return (-1);
134 }
135 return (n);
136 }
137 /*
138 * vw_printw --
139 * This routine actually executes the printf and adds it to the window.
140 */
141 int
vw_printw(WINDOW * win,const char * fmt,va_list ap)142 vw_printw(WINDOW *win, const char *fmt, va_list ap)
143 {
144 FILE *f;
145
146 if ((f = funopen(win, NULL, __winwrite, NULL, NULL)) == NULL)
147 return (ERR);
148 (void) vfprintf(f, fmt, ap);
149 return (fclose(f) ? ERR : OK);
150 }
151
152 __strong_alias(vwprintw, vw_printw)
153