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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1997 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#include <sys/types.h>
#include "curses_inc.h"
#include <ctype.h>
/* Insert a character at (curx, cury). */
int
winsch(WINDOW *win, chtype c)
{
short curx = win->_curx;
int n, cury = win->_cury;
chtype *wcp, a;
int rv;
a = _ATTR(c);
c &= A_CHARTEXT;
rv = OK;
win->_insmode = TRUE;
if (_scrmax > 1 && (rv = _mbvalid(win)) == ERR)
goto done;
/* take care of multi-byte characters */
if (_mbtrue && ISMBIT(c)) {
rv = _mbaddch(win, A_NORMAL, RBYTE(c));
goto done;
}
win->_nbyte = -1;
curx = win->_curx;
/* let waddch() worry about these */
if (c == '\r' || c == '\b')
return (waddch(win, c));
/* with \n, in contrast to waddch, we don't clear-to-eol */
if (c == '\n') {
if (cury >= (win->_maxy-1) || cury == win->_bmarg)
return (wscrl(win, 1));
else {
win->_cury++;
win->_curx = 0;
return (OK);
}
}
/* with tabs or control characters, we have to do more */
if (c == '\t') {
n = (TABSIZE - (curx % TABSIZE));
if ((curx + n) >= win->_maxx)
n = win->_maxx - curx;
c = ' ';
} else {
if (iscntrl((int) c) != 0) {
if (curx >= win->_maxx-1)
return (ERR);
n = 2;
} else
n = 1;
}
/* shift right */
wcp = win->_y[cury] + curx;
if ((rv = _mbinsshift(win, n)) == ERR)
goto done;
/* insert new control character */
if (c < ' ' || c == _CTRL('?')) {
*wcp++ = '^' | win->_attrs | a;
*wcp = _UNCTRL(c) | win->_attrs | a;
} else {
/* normal characters */
c = _WCHAR(win, c) | a;
for (; n > 0; --n)
*wcp++ = c;
}
done:
if (curx < win->_firstch[cury])
win->_firstch[cury] = curx;
win->_lastch[cury] = win->_maxx-1;
win->_flags |= _WINCHANGED;
if (win->_sync)
wsyncup(win);
return ((rv == OK && win->_immed) ? wrefresh(win) : rv);
}
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