1 /****************************************************************************
2 * Copyright 2020 Thomas E. Dickey *
3 * Copyright 1998-2016,2017 Free Software Foundation, Inc. *
4 * *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
8 * without limitation the rights to use, copy, modify, merge, publish, *
9 * distribute, distribute with modifications, sublicense, and/or sell *
10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
12 * *
13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
15 * *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * *
24 * Except as contained in this notice, the name(s) of the above copyright *
25 * holders shall not be used in advertising or otherwise to promote the *
26 * sale, use or other dealings in this Software without prior written *
27 * authorization. *
28 ****************************************************************************/
29
30 /****************************************************************************
31 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
32 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
33 * and: Sven Verdoolaege 2001 *
34 * and: Thomas E. Dickey 2005 *
35 ****************************************************************************/
36
37 /*
38 ** lib_chgat.c
39 **
40 ** The routine wchgat().
41 **
42 */
43
44 #include <curses.priv.h>
45
46 MODULE_ID("$Id: lib_chgat.c,v 1.13 2020/02/02 23:34:34 tom Exp $")
47
NCURSES_EXPORT(int)48 NCURSES_EXPORT(int)
49 wchgat(WINDOW *win,
50 int n,
51 attr_t attr,
52 NCURSES_PAIRS_T pair_arg,
53 const void *opts GCC_UNUSED)
54 {
55 int code = ERR;
56 int color_pair = pair_arg;
57
58 T((T_CALLED("wchgat(%p,%d,%s,%d)"),
59 (void *) win,
60 n,
61 _traceattr(attr),
62 color_pair));
63
64 set_extended_pair(opts, color_pair);
65 if (win) {
66 struct ldat *line = &(win->_line[win->_cury]);
67 int i;
68
69 toggle_attr_on(attr, ColorPair(color_pair));
70
71 for (i = win->_curx; i <= win->_maxx && (n == -1 || (n-- > 0)); i++) {
72 SetAttr(line->text[i], attr);
73 SetPair(line->text[i], color_pair);
74 CHANGED_CELL(line, i);
75 }
76
77 code = OK;
78 }
79 returnCode(code);
80 }
81