105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
/* $NetBSD: clrtoeol.c,v 1.22 2007/01/21 13:25:36 jdc Exp $ */
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/*
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* Copyright (c) 1981, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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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[] = "@(#)clrtoeol.c 8.2 (Berkeley) 5/4/94";
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#else
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__RCSID("$NetBSD: clrtoeol.c,v 1.22 2007/01/21 13:25:36 jdc Exp $");
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#endif
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#endif /* not lint */
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#include "curses.h"
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#include "curses_private.h"
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#ifndef _CURSES_USE_MACROS
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/*
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* clrtoeol --
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* Clear up to the end of line.
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*/
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int
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clrtoeol(void)
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{
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return wclrtoeol(stdscr);
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}
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#endif
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/*
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* wclrtoeol --
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* Clear up to the end of line.
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*/
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int
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wclrtoeol(WINDOW *win)
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{
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int minx, x, y;
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__LDATA *end, *maxx, *sp;
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attr_t attr;
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y = win->cury;
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x = win->curx;
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if (win->lines[y]->flags & __ISPASTEOL) {
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if (y < win->maxy - 1) {
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win->lines[y]->flags &= ~__ISPASTEOL;
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y++;
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x = 0;
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win->cury = y;
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win->curx = x;
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} else
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return (OK);
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}
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end = &win->lines[y]->line[win->maxx];
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minx = -1;
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maxx = &win->lines[y]->line[x];
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if (__using_color && win != curscr)
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attr = win->battr & __COLOR;
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else
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attr = 0;
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for (sp = maxx; sp < end; sp++)
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if (sp->ch != win->bch || sp->attr != attr) {
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maxx = sp;
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if (minx == -1)
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minx = sp - win->lines[y]->line;
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sp->ch = win->bch;
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sp->attr = attr;
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}
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#ifdef DEBUG
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__CTRACE(__CTRACE_ERASE, "CLRTOEOL: minx = %d, maxx = %d, "
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"firstch = %d, lastch = %d\n",
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minx, (int) (maxx - win->lines[y]->line),
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*win->lines[y]->firstchp, *win->lines[y]->lastchp);
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#endif
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/* Update firstch and lastch for the line. */
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return (__touchline(win, y, x, (int) win->maxx - 1));
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}
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