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/* $OpenBSD: lib_touch.c,v 1.3 1997/12/03 05:21:35 millert Exp $ */
/***************************************************************************
* COPYRIGHT NOTICE *
****************************************************************************
* ncurses is copyright (C) 1992-1995 *
* Zeyd M. Ben-Halim *
* zmbenhal@netcom.com *
* Eric S. Raymond *
* esr@snark.thyrsus.com *
* *
* Permission is hereby granted to reproduce and distribute ncurses *
* by any means and for any fee, whether alone or as part of a *
* larger distribution, in source or in binary form, PROVIDED *
* this notice is included with any such distribution, and is not *
* removed from any of its header files. Mention of ncurses in any *
* applications linked with it is highly appreciated. *
* *
* ncurses comes AS IS with no warranty, implied or expressed. *
* *
***************************************************************************/
/*
** lib_touch.c
**
** The routines untouchwin(),
** wtouchln(),
** is_linetouched()
** is_wintouched().
**
*/
#include <curses.priv.h>
MODULE_ID("Id: lib_touch.c,v 1.4 1997/09/19 22:16:33 juergen Exp $")
int is_linetouched(WINDOW *win, int line)
{
T((T_CALLED("is_linetouched(%p,%d)"), win, line));
/* XSI doesn't define any error */
if (!win || (line > win->_maxy) || (line < 0))
returnCode(ERR);
returnCode(win->_line[line].firstchar != _NOCHANGE ? TRUE : FALSE);
}
int is_wintouched(WINDOW *win)
{
int i;
T((T_CALLED("is_wintouched(%p)"), win));
if (win)
for (i = 0; i <= win->_maxy; i++)
if (win->_line[i].firstchar != _NOCHANGE)
returnCode(TRUE);
returnCode(FALSE);
}
int wtouchln(WINDOW *win, int y, int n, int changed)
{
int i;
T((T_CALLED("wtouchln(%p,%d,%d,%d)"), win, y, n, changed));
if (!win || (n<0) || (y<0) || (y>win->_maxy))
returnCode(ERR);
for (i = y; i < y+n; i++) {
if (i>win->_maxy) break;
win->_line[i].firstchar = changed ? 0 : _NOCHANGE;
win->_line[i].lastchar = changed ? win->_maxx : _NOCHANGE;
}
returnCode(OK);
}
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