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 1.10 2020/02/02 23:34:34 tom Exp $") 41 42 #if NCURSES_SP_FUNCS 43 NCURSES_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 NCURSES_EXPORT(PANEL *) 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