/****************************************************************************
* Copyright 2020 Thomas E. Dickey *
* Copyright 1998-2009,2010 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: Thomas E. Dickey <dickey@clark.net> 1997 *
****************************************************************************/
/*
* lib_redrawln.c
*
* The routine wredrawln().
*
*/
#include <curses.priv.h>
MODULE_ID("$Id: lib_redrawln.c,v 1.18 2020/02/02 23:34:34 tom Exp $")
NCURSES_EXPORT(int)
wredrawln(WINDOW *win, int beg, int num)
{
int i;
int end;
size_t len;
SCREEN *sp;
T((T_CALLED("wredrawln(%p,%d,%d)"), (void *) win, beg, num));
if (win == 0)
returnCode(ERR);
sp = _nc_screen_of(win);
if (beg < 0)
beg = 0;
if (touchline(win, beg, num) == ERR)
returnCode(ERR);
if (touchline(CurScreen(sp), beg + win->_begy, num) == ERR)
returnCode(ERR);
end = beg + num;
if (end > CurScreen(sp)->_maxy + 1 - win->_begy)
end = CurScreen(sp)->_maxy + 1 - win->_begy;
if (end > win->_maxy + 1)
end = win->_maxy + 1;
len = (size_t) (win->_maxx + 1);
if (len > (size_t) (CurScreen(sp)->_maxx + 1 - win->_begx))
len = (size_t) (CurScreen(sp)->_maxx + 1 - win->_begx);
len *= sizeof(CurScreen(sp)->_line[0].text[0]);
for (i = beg; i < end; i++) {
int crow = i + win->_begy;
memset(CurScreen(sp)->_line[crow].text + win->_begx, 0, len);
NCURSES_SP_NAME(_nc_make_oldhash) (NCURSES_SP_ARGx crow);
}
returnCode(OK);
}
