diff options
Diffstat (limited to 'ncurses/base/lib_delwin.c')
-rw-r--r-- | ncurses/base/lib_delwin.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/ncurses/base/lib_delwin.c b/ncurses/base/lib_delwin.c new file mode 100644 index 000000000000..ba5f180d5f3c --- /dev/null +++ b/ncurses/base/lib_delwin.c @@ -0,0 +1,89 @@ +/**************************************************************************** + * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. * + * * + * Permission is hereby granted, free of charge, to any person obtaining a * + * copy of this software and associated documentation files (the * + * "Software"), to deal in the Software without restriction, including * + * without limitation the rights to use, copy, modify, merge, publish, * + * distribute, distribute with modifications, sublicense, and/or sell * + * copies of the Software, and to permit persons to whom the Software is * + * furnished to do so, subject to the following conditions: * + * * + * The above copyright notice and this permission notice shall be included * + * in all copies or substantial portions of the Software. * + * * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * + * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * + * * + * Except as contained in this notice, the name(s) of the above copyright * + * holders shall not be used in advertising or otherwise to promote the * + * sale, use or other dealings in this Software without prior written * + * authorization. * + ****************************************************************************/ + +/**************************************************************************** + * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * + * and: Eric S. Raymond <esr@snark.thyrsus.com> * + ****************************************************************************/ + +/* +** lib_delwin.c +** +** The routine delwin(). +** +*/ + +#include <curses.priv.h> + +MODULE_ID("$Id: lib_delwin.c,v 1.16 2008/05/03 14:13:51 tom Exp $") + +static bool +cannot_delete(WINDOW *win) +{ + WINDOWLIST *p; + bool result = TRUE; + + for (each_window(p)) { + if (&(p->win) == win) { + result = FALSE; + } else if ((p->win._flags & _SUBWIN) != 0 + && p->win._parent == win) { + result = TRUE; + break; + } + } + return result; +} + +NCURSES_EXPORT(int) +delwin(WINDOW *win) +{ + int result = ERR; + + T((T_CALLED("delwin(%p)"), win)); + + if (_nc_try_global(windowlist) == 0) { + _nc_lock_window(win); + if (win == 0 + || cannot_delete(win)) { + result = ERR; + _nc_unlock_window(win); + } else { + + if (win->_flags & _SUBWIN) + touchwin(win->_parent); + else if (curscr != 0) + touchwin(curscr); + + _nc_unlock_window(win); + result = _nc_freewin(win); + } + _nc_unlock_global(windowlist); + } + returnCode(result); +} |