xref: /freebsd/contrib/ncurses/panel/p_show.c (revision 640235e2c2ba32947f7c59d168437ffa1280f1e6)
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2  * Copyright (c) 1998-2005,2010 Free Software Foundation, Inc.              *
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28 
29 /****************************************************************************
30  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1995                    *
31  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
32  ****************************************************************************/
33 
34 /* p_show.c
35  * Place a panel on top of the stack; may already be in the stack
36  */
37 #include "panel.priv.h"
38 
39 MODULE_ID("$Id: p_show.c,v 1.13 2010/01/23 21:22:16 tom Exp $")
40 
41 NCURSES_EXPORT(int)
42 show_panel(PANEL * pan)
43 {
44   int err = ERR;
45 
46   T((T_CALLED("show_panel(%p)"), (void *)pan));
47 
48   if (pan)
49     {
50       GetHook(pan);
51 
52       if (Is_Top(pan))
53 	returnCode(OK);
54 
55       dBug(("--> show_panel %s", USER_PTR(pan->user)));
56 
57       HIDE_PANEL(pan, err, OK);
58 
59       dStack("<lt%d>", 1, pan);
60       assert(_nc_bottom_panel == _nc_stdscr_pseudo_panel);
61 
62       _nc_top_panel->above = pan;
63       pan->below = _nc_top_panel;
64       pan->above = (PANEL *) 0;
65       _nc_top_panel = pan;
66 
67       err = OK;
68 
69       dStack("<lt%d>", 9, pan);
70     }
71   returnCode(err);
72 }
73