freebsd-skq/contrib/ncurses/panel/p_below.c
2021-02-25 19:26:56 +01:00

87 lines
3.6 KiB
C

/****************************************************************************
* Copyright 2020 Thomas E. Dickey *
* Copyright 1998-2010,2012 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
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****************************************************************************/
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
* and: Juergen Pfeifer 1997-1999,2008 *
****************************************************************************/
/* p_below.c
*/
#include "panel.priv.h"
MODULE_ID("$Id: p_below.c,v 1.11 2020/05/24 01:40:20 anonymous.maarten Exp $")
#if NCURSES_SP_FUNCS
PANEL_EXPORT(PANEL *)
ceiling_panel(SCREEN * sp)
{
T((T_CALLED("ceiling_panel(%p)"), (void *)sp));
if (sp)
{
struct panelhook *ph = NCURSES_SP_NAME(_nc_panelhook) (sp);
/* if top and bottom are equal, we have no or only the pseudo panel */
returnPanel(EMPTY_STACK()? (PANEL *) 0 : _nc_top_panel);
}
else
{
if (0 == CURRENT_SCREEN)
returnPanel(0);
else
returnPanel(ceiling_panel(CURRENT_SCREEN));
}
}
#endif
PANEL_EXPORT(PANEL *)
panel_below(const PANEL * pan)
{
PANEL *result;
T((T_CALLED("panel_below(%p)"), (const void *)pan));
if (pan)
{
GetHook(pan);
/* we must not return the pseudo panel */
result = Is_Pseudo(pan->below) ? (PANEL *) 0 : pan->below;
}
else
{
#if NCURSES_SP_FUNCS
result = ceiling_panel(CURRENT_SCREEN);
#else
/* if top and bottom are equal, we have no or only the pseudo panel */
result = EMPTY_STACK()? (PANEL *) 0 : _nc_top_panel;
#endif
}
returnPanel(result);
}