gno/lib/libcurses/printw.c
1997-10-01 02:57:29 +00:00

201 lines
4.3 KiB
C

/*
* Copyright (c) 1981, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char sccsid[] = "@(#)printw.c 8.3 (Berkeley) 5/4/94";
#endif /* not lint */
#ifdef __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#include "curses.h"
/*
* printw and friends.
*
* These routines make nonportable assumptions about varargs if __STDC__
* is not in effect.
*/
static int __winwrite __P((void *, const char *, int));
/*
* printw --
* Printf on the standard screen.
*/
int
#ifdef __STDC__
printw(const char *fmt, ...)
#else
printw(fmt, va_alist)
char *fmt;
va_dcl
#endif
{
va_list ap;
int ret;
#ifdef __STDC__
va_start(ap, fmt);
#else
va_start(ap);
#endif
ret = vwprintw(stdscr, fmt, ap);
va_end(ap);
return (ret);
}
/*
* wprintw --
* Printf on the given window.
*/
int
#ifdef __STDC__
wprintw(WINDOW * win, const char *fmt, ...)
#else
wprintw(win, fmt, va_alist)
WINDOW *win;
char *fmt;
va_dcl
#endif
{
va_list ap;
int ret;
#ifdef __STDC__
va_start(ap, fmt);
#else
va_start(ap);
#endif
ret = vwprintw(win, fmt, ap);
va_end(ap);
return (ret);
}
/*
* mvprintw, mvwprintw --
* Implement the mvprintw commands. Due to the variable number of
* arguments, they cannot be macros. Sigh....
*/
int
#ifdef __STDC__
mvprintw(register int y, register int x, const char *fmt, ...)
#else
mvprintw(y, x, fmt, va_alist)
register int y, x;
char *fmt;
va_dcl
#endif
{
va_list ap;
int ret;
#ifdef __STDC__
va_start(ap, fmt);
#else
va_start(ap);
#endif
if (move(y, x) != OK)
return (ERR);
ret = vwprintw(stdscr, fmt, ap);
va_end(ap);
return (ret);
}
int
#ifdef __STDC__
mvwprintw(register WINDOW * win, register int y, register int x,
const char *fmt, ...)
#else
mvwprintw(win, y, x, fmt, va_alist)
register WINDOW *win;
register int y, x;
char *fmt;
va_dcl
#endif
{
va_list ap;
int ret;
#ifdef __STDC__
va_start(ap, fmt);
#else
va_start(ap);
#endif
if (wmove(win, y, x) != OK)
return (ERR);
ret = vwprintw(win, fmt, ap);
va_end(ap);
return (ret);
}
/*
* Internal write-buffer-to-window function.
*/
static int
__winwrite(cookie, buf, n)
void *cookie;
register const char *buf;
int n;
{
register WINDOW *win;
register int c;
for (c = n, win = cookie; --c >= 0;)
if (waddch(win, *buf++) == ERR)
return (-1);
return (n);
}
/*
* vwprintw --
* This routine actually executes the printf and adds it to the window.
*/
int
vwprintw(win, fmt, ap)
WINDOW *win;
const char *fmt;
va_list ap;
{
FILE *f;
if ((f = funopen(win, NULL, __winwrite, NULL, NULL)) == NULL)
return (ERR);
(void)vfprintf(f, fmt, ap);
return (fclose(f) ? ERR : OK);
}