1 /* $OpenBSD: lib_hline.c,v 1.6 2023/10/17 09:52:08 nicm Exp $ */
2
3 /****************************************************************************
4 * Copyright 2020 Thomas E. Dickey *
5 * Copyright 1998-2016,2017 Free Software Foundation, Inc. *
6 * *
7 * Permission is hereby granted, free of charge, to any person obtaining a *
8 * copy of this software and associated documentation files (the *
9 * "Software"), to deal in the Software without restriction, including *
10 * without limitation the rights to use, copy, modify, merge, publish, *
11 * distribute, distribute with modifications, sublicense, and/or sell *
12 * copies of the Software, and to permit persons to whom the Software is *
13 * furnished to do so, subject to the following conditions: *
14 * *
15 * The above copyright notice and this permission notice shall be included *
16 * in all copies or substantial portions of the Software. *
17 * *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
25 * *
26 * Except as contained in this notice, the name(s) of the above copyright *
27 * holders shall not be used in advertising or otherwise to promote the *
28 * sale, use or other dealings in this Software without prior written *
29 * authorization. *
30 ****************************************************************************/
31
32 /****************************************************************************
33 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
34 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
35 * and: Thomas E. Dickey 1996-on *
36 * and: Sven Verdoolaege 2001 *
37 ****************************************************************************/
38
39 /*
40 ** lib_hline.c
41 **
42 ** The routine whline().
43 **
44 */
45
46 #include <curses.priv.h>
47
48 MODULE_ID("$Id: lib_hline.c,v 1.6 2023/10/17 09:52:08 nicm Exp $")
49
NCURSES_EXPORT(int)50 NCURSES_EXPORT(int)
51 whline(WINDOW *win, chtype ch, int n)
52 {
53 int code = ERR;
54
55 T((T_CALLED("whline(%p,%s,%d)"), (void *) win, _tracechtype(ch), n));
56
57 if (win) {
58 struct ldat *line = &(win->_line[win->_cury]);
59 NCURSES_CH_T wch;
60 int start = win->_curx;
61 int end = start + n - 1;
62
63 if (end > win->_maxx)
64 end = win->_maxx;
65
66 CHANGED_RANGE(line, start, end);
67
68 if (ch == 0)
69 SetChar2(wch, ACS_HLINE);
70 else
71 SetChar2(wch, ch);
72 wch = _nc_render(win, wch);
73
74 #if USE_WIDEC_SUPPORT
75 if (start > 0 && isWidecExt(line->text[start])) {
76 SetChar2(line->text[start - 1], ' ');
77 }
78 if (end < win->_maxx && isWidecExt(line->text[end + 1])) {
79 SetChar2(line->text[end + 1], ' ');
80 }
81 #endif
82 while (end >= start) {
83 line->text[end] = wch;
84 end--;
85 }
86
87 _nc_synchook(win);
88 code = OK;
89 }
90 returnCode(code);
91 }
92