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_above.c
37 */
38 #include "panel.priv.h"
39
40 MODULE_ID("$Id: p_above.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 ground_panel(SCREEN * sp)
45 {
46 T((T_CALLED("ground_panel(%p)"), (void *)sp));
47 if (sp)
48 {
49 struct panelhook *ph = NCURSES_SP_NAME(_nc_panelhook) (sp);
50
51 if (_nc_bottom_panel) /* this is the pseudo panel */
52 returnPanel(_nc_bottom_panel->above);
53 else
54 returnPanel(0);
55 }
56 else
57 {
58 if (0 == CURRENT_SCREEN)
59 returnPanel(0);
60 else
61 returnPanel(ground_panel(CURRENT_SCREEN));
62 }
63 }
64 #endif
65
66 PANEL_EXPORT(PANEL *)
panel_above(const PANEL * pan)67 panel_above(const PANEL * pan)
68 {
69 PANEL *result;
70
71 T((T_CALLED("panel_above(%p)"), (const void *)pan));
72 if (pan)
73 result = pan->above;
74 else
75 {
76 #if NCURSES_SP_FUNCS
77 result = ground_panel(CURRENT_SCREEN);
78 #else
79 /* if top and bottom are equal, we have no or only the pseudo panel;
80 if not, we return the panel above the pseudo panel */
81 result = EMPTY_STACK()? (PANEL *) 0 : _nc_bottom_panel->above;
82 #endif
83 }
84 returnPanel(result);
85 }
86