1 /****************************************************************************
2 * Copyright 2020 Thomas E. Dickey *
3 * Copyright 1998-2010,2012 Free Software Foundation, Inc. *
4 * *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
8 * without limitation the rights to use, copy, modify, merge, publish, *
9 * distribute, distribute with modifications, sublicense, and/or sell *
10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
12 * *
13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
15 * *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * *
24 * Except as contained in this notice, the name(s) of the above copyright *
25 * holders shall not be used in advertising or otherwise to promote the *
26 * sale, use or other dealings in this Software without prior written *
27 * authorization. *
28 ****************************************************************************/
29
30 /****************************************************************************
31 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1995 *
32 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
33 * and: Juergen Pfeifer 1997-1999,2008 *
34 ****************************************************************************/
35
36 /* p_below.c
37 */
38 #include "panel.priv.h"
39
40 MODULE_ID("$Id: p_below.c,v 1.11 2020/05/24 01:40:20 anonymous.maarten Exp $")
41
42 #if NCURSES_SP_FUNCS
PANEL_EXPORT(PANEL *)43 PANEL_EXPORT(PANEL *)
44 ceiling_panel(SCREEN * sp)
45 {
46 T((T_CALLED("ceiling_panel(%p)"), (void *)sp));
47 if (sp)
48 {
49 struct panelhook *ph = NCURSES_SP_NAME(_nc_panelhook) (sp);
50
51 /* if top and bottom are equal, we have no or only the pseudo panel */
52 returnPanel(EMPTY_STACK()? (PANEL *) 0 : _nc_top_panel);
53 }
54 else
55 {
56 if (0 == CURRENT_SCREEN)
57 returnPanel(0);
58 else
59 returnPanel(ceiling_panel(CURRENT_SCREEN));
60 }
61 }
62 #endif
63
64 PANEL_EXPORT(PANEL *)
panel_below(const PANEL * pan)65 panel_below(const PANEL * pan)
66 {
67 PANEL *result;
68
69 T((T_CALLED("panel_below(%p)"), (const void *)pan));
70 if (pan)
71 {
72 GetHook(pan);
73 /* we must not return the pseudo panel */
74 result = Is_Pseudo(pan->below) ? (PANEL *) 0 : pan->below;
75 }
76 else
77 {
78 #if NCURSES_SP_FUNCS
79 result = ceiling_panel(CURRENT_SCREEN);
80 #else
81 /* if top and bottom are equal, we have no or only the pseudo panel */
82 result = EMPTY_STACK()? (PANEL *) 0 : _nc_top_panel;
83 #endif
84 }
85 returnPanel(result);
86 }
87