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102 lines
3.7 KiB
C
102 lines
3.7 KiB
C
/****************************************************************************
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* Copyright 2020,2021 Thomas E. Dickey *
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* Copyright 1998-2008,2009 Free Software Foundation, Inc. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/****************************************************************************
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* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
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* and: Eric S. Raymond <esr@snark.thyrsus.com> *
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* and: Thomas E. Dickey 1996-on *
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* and: Juergen Pfeifer 2008 *
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****************************************************************************/
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/*
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** lib_delwin.c
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**
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** The routine delwin().
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**
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*/
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#include "curses.priv.h"
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MODULE_ID("$Id: lib_delwin.c,v 1.24 2021/12/11 23:56:25 tom Exp $")
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static bool
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cannot_delete(WINDOW *win)
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{
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bool result = TRUE;
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if (IS_PAD(win)) {
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result = FALSE;
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} else {
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WINDOWLIST *p;
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#ifdef USE_SP_WINDOWLIST
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SCREEN *sp = _nc_screen_of(win);
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#endif
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for (each_window(SP_PARM, p)) {
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if (&(p->win) == win) {
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result = FALSE;
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} else if (IS_SUBWIN(&(p->win))
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&& p->win._parent == win) {
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result = TRUE;
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break;
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}
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}
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}
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return result;
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}
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NCURSES_EXPORT(int)
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delwin(WINDOW *win)
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{
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int result = ERR;
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T((T_CALLED("delwin(%p)"), (void *) win));
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if (_nc_try_global(curses) == 0) {
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if (win == 0
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|| cannot_delete(win)) {
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result = ERR;
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} else if (IS_PAD(win)) {
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win->_parent = NULL;
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result = _nc_freewin(win);
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} else {
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#if NCURSES_SP_FUNCS
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SCREEN *sp = _nc_screen_of(win);
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#endif
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if (IS_SUBWIN(win)) {
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touchwin(win->_parent);
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} else if (CurScreen(SP_PARM) != 0) {
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touchwin(CurScreen(SP_PARM));
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}
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result = _nc_freewin(win);
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}
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_nc_unlock_global(curses);
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}
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returnCode(result);
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}
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