/****************************************************************************
 * Copyright 2020,2022 Thomas E. Dickey                                     *
 * Copyright 1998-2009,2010 Free Software Foundation, Inc.                  *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
 *                                                                          *
 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
 * sale, use or other dealings in this Software without prior written       *
 * authorization.                                                           *
 ****************************************************************************/

/****************************************************************************
 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
 *     and: Thomas E. Dickey                        1996-on                 *
 ****************************************************************************/

/*
**	lib_wattron.c
**
**	The routines wattr_on().
**
*/

#include <curses.priv.h>
#include <ctype.h>

MODULE_ID("$Id: lib_wattron.c,v 1.13 2022/04/15 22:34:38 tom Exp $")

NCURSES_EXPORT(int)
wattr_on(WINDOW *win, attr_t at, void *opts GCC_UNUSED)
{
    T((T_CALLED("wattr_on(%p,%s)"), (void *) win, _traceattr(at)));
    if (win != 0) {
	T(("... current %s (%d)",
	   _traceattr(WINDOW_ATTRS(win)),
	   GET_WINDOW_PAIR(win)));

	if_EXT_COLORS({
	    if (at & A_COLOR) {
		win->_color = PairNumber(at);
		set_extended_pair(opts, win->_color);
	    }
	});
	toggle_attr_on(WINDOW_ATTRS(win), at);
	returnCode(OK);
    } else
	returnCode(ERR);
}
