1 /* $OpenBSD: lib_delwin.c,v 1.3 2010/01/12 23:22:05 nicm Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 33 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 34 ****************************************************************************/ 35 36 /* 37 ** lib_delwin.c 38 ** 39 ** The routine delwin(). 40 ** 41 */ 42 43 #include <curses.priv.h> 44 45 MODULE_ID("$Id: lib_delwin.c,v 1.3 2010/01/12 23:22:05 nicm Exp $") 46 47 static bool 48 cannot_delete(WINDOW *win) 49 { 50 WINDOWLIST *p; 51 bool result = TRUE; 52 53 for (each_window(p)) { 54 if (&(p->win) == win) { 55 result = FALSE; 56 } else if ((p->win._flags & _SUBWIN) != 0 57 && p->win._parent == win) { 58 result = TRUE; 59 break; 60 } 61 } 62 return result; 63 } 64 65 NCURSES_EXPORT(int) 66 delwin(WINDOW *win) 67 { 68 int result = ERR; 69 70 T((T_CALLED("delwin(%p)"), win)); 71 72 if (_nc_try_global(curses) == 0) { 73 if (win == 0 74 || cannot_delete(win)) { 75 result = ERR; 76 } else { 77 78 if (win->_flags & _SUBWIN) 79 touchwin(win->_parent); 80 else if (curscr != 0) 81 touchwin(curscr); 82 83 result = _nc_freewin(win); 84 } 85 _nc_unlock_global(curses); 86 } 87 returnCode(result); 88 } 89