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 42MODULE_ID("$Id: p_below.c,v 1.6 2023/10/17 09:52:10 nicm Exp $") 43 44#if NCURSES_SP_FUNCS 45PANEL_EXPORT(PANEL *) 46ceiling_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 66PANEL_EXPORT(PANEL *) 67panel_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