NetBSD/lib/libcurses/getch.c

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/* $NetBSD: getch.c,v 1.8 1997/07/22 07:36:42 mikel Exp $ */
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/*
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* Copyright (c) 1981, 1993, 1994
* The Regents of the University of California. All rights reserved.
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*
* 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.
*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)getch.c 8.2 (Berkeley) 5/4/94";
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#else
__RCSID("$NetBSD: getch.c,v 1.8 1997/07/22 07:36:42 mikel Exp $");
#endif
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#endif /* not lint */
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#include "curses.h"
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/*
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* wgetch --
* Read in a character from the window.
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*/
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int
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wgetch(win)
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register WINDOW *win;
{
register int inp, weset;
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if (!(win->flags & __SCROLLOK) && (win->flags & __FULLWIN)
&& win->curx == win->maxx - 1 && win->cury == win->maxy - 1)
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return (ERR);
#ifdef DEBUG
__CTRACE("wgetch: __echoit = %d, __rawmode = %d\n",
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__echoit, __rawmode);
#endif
if (__echoit && !__rawmode) {
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cbreak();
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weset = 1;
} else
weset = 0;
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inp = getchar();
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#ifdef DEBUG
__CTRACE("wgetch got '%s'\n", unctrl(inp));
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#endif
if (__echoit) {
mvwaddch(curscr,
win->cury + win->begy, win->curx + win->begx, inp);
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waddch(win, inp);
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}
if (weset)
nocbreak();
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return (inp);
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}