xref: /openbsd/lib/libpanel/p_show.c (revision c7ef0cfc)
1 /* $OpenBSD: p_show.c,v 1.7 2023/10/17 09:52:10 nicm Exp $ */
2 
3 /****************************************************************************
4  * Copyright 2020,2021 Thomas E. Dickey                                     *
5  * Copyright 1998-2009,2010 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     *
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30  ****************************************************************************/
31 
32 /****************************************************************************
33  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1995                    *
34  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
35  ****************************************************************************/
36 
37 /* p_show.c
38  * Place a panel on top of the stack; may already be in the stack
39  */
40 #include "panel.priv.h"
41 
42 MODULE_ID("$Id: p_show.c,v 1.7 2023/10/17 09:52:10 nicm Exp $")
43 
PANEL_EXPORT(int)44 PANEL_EXPORT(int)
45 show_panel(PANEL * pan)
46 {
47   int err = ERR;
48 
49   T((T_CALLED("show_panel(%p)"), (void *)pan));
50 
51   if (pan)
52     {
53       GetHook(pan);
54 
55       if (Is_Top(pan))
56 	returnCode(OK);
57 
58       dBug(("--> show_panel %s", USER_PTR(pan->user, 1)));
59 
60       HIDE_PANEL(pan, err, OK);
61 
62       dStack("<lt%d>", 1, pan);
63       assert(_nc_bottom_panel == _nc_stdscr_pseudo_panel);
64 
65       _nc_top_panel->above = pan;
66       pan->below = _nc_top_panel;
67       pan->above = (PANEL *) 0;
68       _nc_top_panel = pan;
69 
70       err = OK;
71 
72       dStack("<lt%d>", 9, pan);
73     }
74   returnCode(err);
75 }
76