1 /**************************************************************************** 2 * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /**************************************************************************** 30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 31 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 32 ****************************************************************************/ 33 34 /* 35 ** lib_delwin.c 36 ** 37 ** The routine delwin(). 38 ** 39 */ 40 41 #include <curses.priv.h> 42 43 MODULE_ID("$Id: lib_delwin.c,v 1.17 2008/06/07 14:10:56 tom Exp $") 44 45 static bool 46 cannot_delete(WINDOW *win) 47 { 48 WINDOWLIST *p; 49 bool result = TRUE; 50 51 for (each_window(p)) { 52 if (&(p->win) == win) { 53 result = FALSE; 54 } else if ((p->win._flags & _SUBWIN) != 0 55 && p->win._parent == win) { 56 result = TRUE; 57 break; 58 } 59 } 60 return result; 61 } 62 63 NCURSES_EXPORT(int) 64 delwin(WINDOW *win) 65 { 66 int result = ERR; 67 68 T((T_CALLED("delwin(%p)"), win)); 69 70 if (_nc_try_global(curses) == 0) { 71 if (win == 0 72 || cannot_delete(win)) { 73 result = ERR; 74 } else { 75 76 if (win->_flags & _SUBWIN) 77 touchwin(win->_parent); 78 else if (curscr != 0) 79 touchwin(curscr); 80 81 result = _nc_freewin(win); 82 } 83 _nc_unlock_global(curses); 84 } 85 returnCode(result); 86 } 87