p_above.c revision 302408 
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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 *     and: Juergen Pfeifer                         1997-1999,2008          *
33 ****************************************************************************/
34
35/* p_above.c
36 */
37#include "panel.priv.h"
38
39MODULE_ID("$Id: p_above.c,v 1.9 2012/03/10 23:43:41 tom Exp $")
40
41#if NCURSES_SP_FUNCS
42NCURSES_EXPORT(PANEL *)
43ground_panel(SCREEN * sp)
44{
45  T((T_CALLED("ground_panel(%p)"), (void *)sp));
46  if (sp)
47    {
48      struct panelhook *ph = NCURSES_SP_NAME(_nc_panelhook) (sp);
49
50      if (_nc_bottom_panel)	/* this is the pseudo panel */
51	returnPanel(_nc_bottom_panel->above);
52      else
53	returnPanel(0);
54    }
55  else
56    {
57      if (0 == CURRENT_SCREEN)
58	returnPanel(0);
59      else
60	returnPanel(ground_panel(CURRENT_SCREEN));
61    }
62}
63#endif
64
65NCURSES_EXPORT(PANEL *)
66panel_above(const PANEL * pan)
67{
68  PANEL *result;
69
70  T((T_CALLED("panel_above(%p)"), (const void *)pan));
71  if (pan)
72    result = pan->above;
73  else
74    {
75#if NCURSES_SP_FUNCS
76      result = ground_panel(CURRENT_SCREEN);
77#else
78      /* if top and bottom are equal, we have no or only the pseudo panel;
79         if not, we return the panel above the pseudo panel */
80      result = EMPTY_STACK()? (PANEL *) 0 : _nc_bottom_panel->above;
81#endif
82    }
83  returnPanel(result);
84}
85