125 lines
3.4 KiB
C
125 lines
3.4 KiB
C
/* $NetBSD: clrtoeol.c,v 1.35 2022/05/12 22:25:38 blymn Exp $ */
|
|
|
|
/*
|
|
* 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. 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)clrtoeol.c 8.2 (Berkeley) 5/4/94";
|
|
#else
|
|
__RCSID("$NetBSD: clrtoeol.c,v 1.35 2022/05/12 22:25:38 blymn Exp $");
|
|
#endif
|
|
#endif /* not lint */
|
|
|
|
#include <stdlib.h>
|
|
#include "curses.h"
|
|
#include "curses_private.h"
|
|
|
|
#ifndef _CURSES_USE_MACROS
|
|
|
|
/*
|
|
* clrtoeol --
|
|
* Clear up to the end of line.
|
|
*/
|
|
int
|
|
clrtoeol(void)
|
|
{
|
|
return wclrtoeol(stdscr);
|
|
}
|
|
|
|
#endif
|
|
|
|
/*
|
|
* wclrtoeol --
|
|
* Clear up to the end of line.
|
|
*/
|
|
int
|
|
wclrtoeol(WINDOW *win)
|
|
{
|
|
int minx, x, y;
|
|
__LDATA *end, *maxx, *sp;
|
|
wchar_t bch;
|
|
attr_t battr;
|
|
|
|
bch = win->bch;
|
|
if (win != curscr)
|
|
battr = win->battr & __ATTRIBUTES;
|
|
else
|
|
battr = 0;
|
|
|
|
y = win->cury;
|
|
x = win->curx;
|
|
if (win->alines[y]->flags & __ISPASTEOL) {
|
|
if (y < win->maxy - 1) {
|
|
win->alines[y]->flags &= ~__ISPASTEOL;
|
|
y++;
|
|
x = 0;
|
|
win->cury = y;
|
|
win->curx = x;
|
|
} else
|
|
return OK;
|
|
}
|
|
end = &win->alines[y]->line[win->maxx];
|
|
minx = -1;
|
|
maxx = &win->alines[y]->line[x];
|
|
|
|
for (sp = maxx; sp < end; sp++) {
|
|
/*
|
|
* It looks like ncurses makes the rest of line foreground
|
|
* when it is cleared - this doesn't seem right but it
|
|
* makes applicatins look right.
|
|
*/
|
|
sp->cflags &= ~CA_BACKGROUND;
|
|
if (!(__NEED_ERASE(sp, bch, battr)))
|
|
continue;
|
|
|
|
maxx = sp;
|
|
if (minx == -1)
|
|
minx = (int)(sp - win->alines[y]->line);
|
|
|
|
sp->ch = bch;
|
|
sp->attr = battr | (sp->attr & __ALTCHARSET);
|
|
#ifdef HAVE_WCHAR
|
|
if (_cursesi_copy_nsp(win->bnsp, sp) == ERR)
|
|
return ERR;
|
|
sp->wcols = 1;
|
|
#endif
|
|
}
|
|
|
|
__CTRACE(__CTRACE_ERASE, "CLRTOEOL: y = %d, minx = %d, maxx = %d, "
|
|
"firstch = %d, lastch = %d\n",
|
|
y, minx, (int)(maxx - win->alines[y]->line),
|
|
*win->alines[y]->firstchp, *win->alines[y]->lastchp);
|
|
/* Update firstch and lastch for the line. */
|
|
__touchline(win, y, x, (int)win->maxx - 1);
|
|
__sync(win);
|
|
return OK;
|
|
}
|