/****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc. *
+ * 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 *
#include <curses.priv.h>
-MODULE_ID("$Id: lib_redrawln.c,v 1.7 1998/09/19 20:09:50 Alexander.V.Lukyanov Exp $")
+MODULE_ID("$Id: lib_redrawln.c,v 1.18 2020/02/02 23:34:34 tom Exp $")
-int wredrawln(WINDOW *win, int beg, int num)
+NCURSES_EXPORT(int)
+wredrawln(WINDOW *win, int beg, int num)
{
- int i;
- int end;
- size_t len = (win->_maxx + 1) * sizeof(chtype);
+ int i;
+ int end;
+ size_t len;
+ SCREEN *sp;
- T((T_CALLED("wredrawln(%p,%d,%d)"), win, beg, num));
+ T((T_CALLED("wredrawln(%p,%d,%d)"), (void *) win, beg, num));
- if (beg < 0)
- beg = 0;
+ if (win == 0)
+ returnCode(ERR);
- if (touchline (win, beg, num) == ERR)
- returnCode(ERR);
+ sp = _nc_screen_of(win);
- end = beg + num;
- if (end > win->_maxy + 1)
- end = win->_maxy + 1;
+ if (beg < 0)
+ beg = 0;
- for (i = beg; i < end; i++)
- {
- memset (curscr->_line[i+win->_begy].text+win->_begx, 0, len);
- _nc_make_oldhash(i+win->_begy);
- }
+ if (touchline(win, beg, num) == ERR)
+ returnCode(ERR);
- returnCode(OK);
+ 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);
}