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      1 /*	$NetBSD: below.c,v 1.2 2015/11/01 01:40:23 uwe Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2015 Valery Ushakov
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include <sys/cdefs.h>
     29 __RCSID("$NetBSD: below.c,v 1.2 2015/11/01 01:40:23 uwe Exp $");
     30 
     31 #include "panel_impl.h"
     32 
     33 
     34 PANEL *
     35 panel_below(PANEL *p)
     36 {
     37 	PANEL *below;
     38 
     39 	if (p == NULL)
     40 		below = TAILQ_LAST(&_deck, deck);
     41 	else if (__predict_true(!PANEL_HIDDEN(p)))
     42 		below = PANEL_BELOW(p);
     43 	else
     44 		return NULL;
     45 
     46 	if (below == &_stdscr_panel)
     47 		return NULL;
     48 	else
     49 		return below;
     50 }
     51