1 /****************************************************************************
2 * Copyright 2020 Thomas E. Dickey *
3 * Copyright 1998-2009,2010 Free Software Foundation, Inc. *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
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28 ****************************************************************************/
30 /****************************************************************************
31 * Author: Thomas E. Dickey <dickey@clark.net> 1997 *
32 ****************************************************************************/
37 * The routine wredrawln().
41 #include <curses.priv.h>
43 MODULE_ID("$Id: lib_redrawln.c,v 1.18 2020/02/02 23:34:34 tom Exp $")
46 wredrawln(WINDOW *win, int beg, int num)
53 T((T_CALLED("wredrawln(%p,%d,%d)"), (void *) win, beg, num));
58 sp = _nc_screen_of(win);
63 if (touchline(win, beg, num) == ERR)
66 if (touchline(CurScreen(sp), beg + win->_begy, num) == ERR)
70 if (end > CurScreen(sp)->_maxy + 1 - win->_begy)
71 end = CurScreen(sp)->_maxy + 1 - win->_begy;
72 if (end > win->_maxy + 1)
75 len = (size_t) (win->_maxx + 1);
76 if (len > (size_t) (CurScreen(sp)->_maxx + 1 - win->_begx))
77 len = (size_t) (CurScreen(sp)->_maxx + 1 - win->_begx);
78 len *= sizeof(CurScreen(sp)->_line[0].text[0]);
80 for (i = beg; i < end; i++) {
81 int crow = i + win->_begy;
83 memset(CurScreen(sp)->_line[crow].text + win->_begx, 0, len);
84 NCURSES_SP_NAME(_nc_make_oldhash) (NCURSES_SP_ARGx crow);