xref: /openbsd-src/lib/libpanel/p_show.c (revision 62a742911104f98b9185b2c6b6007d9b1c36396c)
1 /*	$OpenBSD: p_show.c,v 1.2 1998/07/24 17:08:15 millert Exp $	*/
2 
3 /****************************************************************************
4  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
5  *                                                                          *
6  * Permission is hereby granted, free of charge, to any person obtaining a  *
7  * copy of this software and associated documentation files (the            *
8  * "Software"), to deal in the Software without restriction, including      *
9  * without limitation the rights to use, copy, modify, merge, publish,      *
10  * distribute, distribute with modifications, sublicense, and/or sell       *
11  * copies of the Software, and to permit persons to whom the Software is    *
12  * furnished to do so, subject to the following conditions:                 *
13  *                                                                          *
14  * The above copyright notice and this permission notice shall be included  *
15  * in all copies or substantial portions of the Software.                   *
16  *                                                                          *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
20  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
21  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
22  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
23  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
24  *                                                                          *
25  * Except as contained in this notice, the name(s) of the above copyright   *
26  * holders shall not be used in advertising or otherwise to promote the     *
27  * sale, use or other dealings in this Software without prior written       *
28  * authorization.                                                           *
29  ****************************************************************************/
30 
31 /****************************************************************************
32  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1995                    *
33  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
34  ****************************************************************************/
35 
36 /* p_show.c
37  * Place a panel on top of the stack; may already be in the stack
38  */
39 #include "panel.priv.h"
40 
41 MODULE_ID("$From: p_show.c,v 1.2 1998/02/11 12:14:01 tom Exp $")
42 
43 static void
44 panel_link_top(PANEL *pan)
45 {
46 #ifdef TRACE
47   dStack("<lt%d>",1,pan);
48   if(_nc_panel_is_linked(pan))
49     return;
50 #endif
51 
52   pan->above = (PANEL *)0;
53   pan->below = (PANEL *)0;
54   if(_nc_top_panel)
55     {
56       _nc_top_panel->above = pan;
57       pan->below = _nc_top_panel;
58     }
59   _nc_top_panel = pan;
60   if(!_nc_bottom_panel)
61     _nc_bottom_panel = pan;
62   _nc_calculate_obscure();
63   dStack("<lt%d>",9,pan);
64 }
65 
66 int
67 show_panel(PANEL *pan)
68 {
69   if(!pan)
70     return(ERR);
71   if(pan == _nc_top_panel)
72     return(OK);
73   dBug(("--> show_panel %s", USER_PTR(pan->user)));
74   if(_nc_panel_is_linked(pan))
75     (void)hide_panel(pan);
76   panel_link_top(pan);
77   return(OK);
78 }
79