1 /**************************************************************************** 2 * Copyright (c) 1998-2008,2009 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 * and: Thomas E. Dickey 1996-on * 33 * and: Juergen Pfeifer 2008 * 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 1.20 2009/10/24 22:02:14 tom Exp $") 46 47 static bool 48 cannot_delete(WINDOW *win) 49 { 50 WINDOWLIST *p; 51 bool result = TRUE; 52 #ifdef USE_SP_WINDOWLIST 53 SCREEN *sp = _nc_screen_of(win); 54 #endif 55 56 for (each_window(SP_PARM, p)) { 57 if (&(p->win) == win) { 58 result = FALSE; 59 } else if ((p->win._flags & _SUBWIN) != 0 60 && p->win._parent == win) { 61 result = TRUE; 62 break; 63 } 64 } 65 return result; 66 } 67 68 NCURSES_EXPORT(int) 69 delwin(WINDOW *win) 70 { 71 int result = ERR; 72 73 T((T_CALLED("delwin(%p)"), (void *) win)); 74 75 if (_nc_try_global(curses) == 0) { 76 if (win == 0 77 || cannot_delete(win)) { 78 result = ERR; 79 } else { 80 #if NCURSES_SP_FUNCS 81 SCREEN *sp = _nc_screen_of(win); 82 #endif 83 if (win->_flags & _SUBWIN) 84 touchwin(win->_parent); 85 else if (CurScreen(SP_PARM) != 0) 86 touchwin(CurScreen(SP_PARM)); 87 88 result = _nc_freewin(win); 89 } 90 _nc_unlock_global(curses); 91 } 92 returnCode(result); 93 } 94