1 /****************************************************************************
2 * Copyright (c) 1998,2000,2001 Free Software Foundation, Inc. *
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 *
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9 * copies of the Software, and to permit persons to whom the Software is *
10 * furnished to do so, subject to the following conditions: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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27 ****************************************************************************/
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 ****************************************************************************/
38 ** The routine werase().
42 #include <curses.priv.h>
44 MODULE_ID("$Id: lib_erase.c,v 1.16 2005/10/30 00:36:36 tom Exp $")
52 NCURSES_CH_T *sp, *end, *start;
54 T((T_CALLED("werase(%p)"), win));
57 blank = win->_nc_bkgd;
58 for (y = 0; y <= win->_maxy; y++) {
59 start = win->_line[y].text;
60 end = &start[win->_maxx];
63 * If this is a derived window, we have to handle the case where
64 * a multicolumn character extends into the window that we are
68 if (isWidecExt(start[0])) {
69 int x = (win->_parent != 0) ? (win->_begx) : 0;
71 if (isWidecBase(start[-1])) {
80 for (sp = start; sp <= end; sp++)
83 win->_line[y].firstchar = 0;
84 win->_line[y].lastchar = win->_maxx;
86 win->_curx = win->_cury = 0;
87 win->_flags &= ~_WRAPPED;