6c8ac72df7
distributed in keith bostic's nvi (got his permission first). Most changes are cosmetic, but a few errors (mostly in tty..c) were cleared up. Reviewed by: Sean Eric Fagan
72 lines
2.4 KiB
C
72 lines
2.4 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[] = "@(#)scroll.c 8.3 (Berkeley) 5/4/94";
|
|
#endif /* not lint */
|
|
|
|
#include "curses.h"
|
|
|
|
/*
|
|
* scroll --
|
|
* Scroll the window up a line.
|
|
*/
|
|
int
|
|
scroll(win)
|
|
register WINDOW *win;
|
|
{
|
|
register int oy, ox;
|
|
|
|
#ifdef DEBUG
|
|
__CTRACE("scroll: (%0.2o)\n", win);
|
|
#endif
|
|
|
|
if (!(win->flags & __SCROLLOK))
|
|
return (ERR);
|
|
|
|
getyx(win, oy, ox);
|
|
wmove(win, 0, 0);
|
|
wdeleteln(win);
|
|
wmove(win, oy, ox);
|
|
|
|
if (win == curscr) {
|
|
putchar('\n');
|
|
if (!NONL)
|
|
win->curx = 0;
|
|
#ifdef DEBUG
|
|
__CTRACE("scroll: win == curscr\n");
|
|
#endif
|
|
}
|
|
return (OK);
|
|
}
|