1*c7ef0cfcSnicm /* $OpenBSD: lib_touch.c,v 1.4 2023/10/17 09:52:09 nicm Exp $ */
292dd1ec0Smillert
392dd1ec0Smillert /****************************************************************************
4*c7ef0cfcSnicm * Copyright 2020 Thomas E. Dickey *
5*c7ef0cfcSnicm * Copyright 1998-2016,2017 Free Software Foundation, Inc. *
692dd1ec0Smillert * *
792dd1ec0Smillert * Permission is hereby granted, free of charge, to any person obtaining a *
892dd1ec0Smillert * copy of this software and associated documentation files (the *
992dd1ec0Smillert * "Software"), to deal in the Software without restriction, including *
1092dd1ec0Smillert * without limitation the rights to use, copy, modify, merge, publish, *
1192dd1ec0Smillert * distribute, distribute with modifications, sublicense, and/or sell *
1292dd1ec0Smillert * copies of the Software, and to permit persons to whom the Software is *
1392dd1ec0Smillert * furnished to do so, subject to the following conditions: *
1492dd1ec0Smillert * *
1592dd1ec0Smillert * The above copyright notice and this permission notice shall be included *
1692dd1ec0Smillert * in all copies or substantial portions of the Software. *
1792dd1ec0Smillert * *
1892dd1ec0Smillert * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
1992dd1ec0Smillert * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
2092dd1ec0Smillert * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
2192dd1ec0Smillert * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
2292dd1ec0Smillert * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
2392dd1ec0Smillert * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
2492dd1ec0Smillert * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
2592dd1ec0Smillert * *
2692dd1ec0Smillert * Except as contained in this notice, the name(s) of the above copyright *
2792dd1ec0Smillert * holders shall not be used in advertising or otherwise to promote the *
2892dd1ec0Smillert * sale, use or other dealings in this Software without prior written *
2992dd1ec0Smillert * authorization. *
3092dd1ec0Smillert ****************************************************************************/
3192dd1ec0Smillert
3292dd1ec0Smillert /****************************************************************************
3392dd1ec0Smillert * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
3492dd1ec0Smillert * and: Eric S. Raymond <esr@snark.thyrsus.com> *
3592dd1ec0Smillert ****************************************************************************/
3692dd1ec0Smillert
3792dd1ec0Smillert /*
3892dd1ec0Smillert ** lib_touch.c
3992dd1ec0Smillert **
4092dd1ec0Smillert ** The routines untouchwin(),
4192dd1ec0Smillert ** wtouchln(),
4292dd1ec0Smillert ** is_linetouched()
4392dd1ec0Smillert ** is_wintouched().
4492dd1ec0Smillert **
4592dd1ec0Smillert */
4692dd1ec0Smillert
4792dd1ec0Smillert #include <curses.priv.h>
4892dd1ec0Smillert
49*c7ef0cfcSnicm MODULE_ID("$Id: lib_touch.c,v 1.4 2023/10/17 09:52:09 nicm Exp $")
50*c7ef0cfcSnicm
51*c7ef0cfcSnicm #undef is_linetouched
5292dd1ec0Smillert
NCURSES_EXPORT(bool)5384af20ceSmillert NCURSES_EXPORT(bool)
5484af20ceSmillert is_linetouched(WINDOW *win, int line)
5592dd1ec0Smillert {
56*c7ef0cfcSnicm T((T_CALLED("is_linetouched(%p,%d)"), (void *) win, line));
5792dd1ec0Smillert
58*c7ef0cfcSnicm /* XSI doesn't define any error, and gcc ultimately made it impossible */
59*c7ef0cfcSnicm if (!win || (line > win->_maxy) || (line < 0)) {
60*c7ef0cfcSnicm returnCode(FALSE);
61*c7ef0cfcSnicm }
6292dd1ec0Smillert
6392dd1ec0Smillert returnCode(win->_line[line].firstchar != _NOCHANGE ? TRUE : FALSE);
6492dd1ec0Smillert }
6592dd1ec0Smillert
6684af20ceSmillert NCURSES_EXPORT(bool)
is_wintouched(WINDOW * win)6784af20ceSmillert is_wintouched(WINDOW *win)
6892dd1ec0Smillert {
69*c7ef0cfcSnicm T((T_CALLED("is_wintouched(%p)"), (void *) win));
70*c7ef0cfcSnicm
71*c7ef0cfcSnicm if (win) {
7292dd1ec0Smillert int i;
7392dd1ec0Smillert
7492dd1ec0Smillert for (i = 0; i <= win->_maxy; i++)
7592dd1ec0Smillert if (win->_line[i].firstchar != _NOCHANGE)
7692dd1ec0Smillert returnCode(TRUE);
77*c7ef0cfcSnicm }
7892dd1ec0Smillert returnCode(FALSE);
7992dd1ec0Smillert }
8092dd1ec0Smillert
8184af20ceSmillert NCURSES_EXPORT(int)
wtouchln(WINDOW * win,int y,int n,int changed)8284af20ceSmillert wtouchln(WINDOW *win, int y, int n, int changed)
8392dd1ec0Smillert {
8492dd1ec0Smillert int i;
8592dd1ec0Smillert
86*c7ef0cfcSnicm T((T_CALLED("wtouchln(%p,%d,%d,%d)"), (void *) win, y, n, changed));
8792dd1ec0Smillert
8892dd1ec0Smillert if (!win || (n < 0) || (y < 0) || (y > win->_maxy))
8992dd1ec0Smillert returnCode(ERR);
9092dd1ec0Smillert
9192dd1ec0Smillert for (i = y; i < y + n; i++) {
9284af20ceSmillert if (i > win->_maxy)
9384af20ceSmillert break;
94*c7ef0cfcSnicm win->_line[i].firstchar = (NCURSES_SIZE_T) (changed ? 0 : _NOCHANGE);
95*c7ef0cfcSnicm win->_line[i].lastchar = (NCURSES_SIZE_T) (changed
96*c7ef0cfcSnicm ? win->_maxx
97*c7ef0cfcSnicm : _NOCHANGE);
9892dd1ec0Smillert }
9992dd1ec0Smillert returnCode(OK);
10092dd1ec0Smillert }
101