1 /****************************************************************************
2  * Copyright 2020 Thomas E. Dickey                                          *
3  * Copyright 1998-2009,2010 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            *
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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  *
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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               *
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22  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
23  *                                                                          *
24  * Except as contained in this notice, the name(s) of the above copyright   *
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29 
30 /****************************************************************************
31  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
32  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
33  *     and: Thomas E. Dickey                        1996-on                 *
34  ****************************************************************************/
35 
36 /*
37 **	lib_wattron.c
38 **
39 **	The routines wattr_on().
40 **
41 */
42 
43 #include <curses.priv.h>
44 #include <ctype.h>
45 
46 MODULE_ID("$Id: lib_wattron.c,v 1.12 2020/02/02 23:34:34 tom Exp $")
47 
48 NCURSES_EXPORT(int)
49 wattr_on(WINDOW *win, attr_t at, void *opts GCC_UNUSED)
50 {
51     T((T_CALLED("wattr_on(%p,%s)"), (void *) win, _traceattr(at)));
52     if (win != 0) {
53 	T(("... current %s (%d)",
54 	   _traceattr(WINDOW_ATTRS(win)),
55 	   GET_WINDOW_PAIR(win)));
56 
57 	if_EXT_COLORS({
58 	    if (at & A_COLOR)
59 		win->_color = PairNumber(at);
60 	});
61 	toggle_attr_on(WINDOW_ATTRS(win), at);
62 	returnCode(OK);
63     } else
64 	returnCode(ERR);
65 }
66