1 /* $OpenBSD: p_below.c,v 1.6 2023/10/17 09:52:10 nicm Exp $ */
2
3 /****************************************************************************
4 * Copyright 2020 Thomas E. Dickey *
5 * Copyright 1998-2010,2012 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 *
28 * sale, use or other dealings in this Software without prior written *
29 * authorization. *
30 ****************************************************************************/
31
32 /****************************************************************************
33 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1995 *
34 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
35 * and: Juergen Pfeifer 1997-1999,2008 *
36 ****************************************************************************/
37
38 /* p_below.c
39 */
40 #include "panel.priv.h"
41
42 MODULE_ID("$Id: p_below.c,v 1.6 2023/10/17 09:52:10 nicm Exp $")
43
44 #if NCURSES_SP_FUNCS
PANEL_EXPORT(PANEL *)45 PANEL_EXPORT(PANEL *)
46 ceiling_panel(SCREEN * sp)
47 {
48 T((T_CALLED("ceiling_panel(%p)"), (void *)sp));
49 if (sp)
50 {
51 struct panelhook *ph = NCURSES_SP_NAME(_nc_panelhook) (sp);
52
53 /* if top and bottom are equal, we have no or only the pseudo panel */
54 returnPanel(EMPTY_STACK()? (PANEL *) 0 : _nc_top_panel);
55 }
56 else
57 {
58 if (0 == CURRENT_SCREEN)
59 returnPanel(0);
60 else
61 returnPanel(ceiling_panel(CURRENT_SCREEN));
62 }
63 }
64 #endif
65
66 PANEL_EXPORT(PANEL *)
panel_below(const PANEL * pan)67 panel_below(const PANEL * pan)
68 {
69 PANEL *result;
70
71 T((T_CALLED("panel_below(%p)"), (const void *)pan));
72 if (pan)
73 {
74 GetHook(pan);
75 /* we must not return the pseudo panel */
76 result = Is_Pseudo(pan->below) ? (PANEL *) 0 : pan->below;
77 }
78 else
79 {
80 #if NCURSES_SP_FUNCS
81 result = ceiling_panel(CURRENT_SCREEN);
82 #else
83 /* if top and bottom are equal, we have no or only the pseudo panel */
84 result = EMPTY_STACK()? (PANEL *) 0 : _nc_top_panel;
85 #endif
86 }
87 returnPanel(result);
88 }
89