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/***************************************************************************
* 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_clrbot.c
**
** The routine wclrtobot().
**
*/
#include "curses.priv.h"
int wclrtobot(WINDOW *win)
{
chtype *ptr, *end, *maxx = NULL;
short y, startx, minx;
T(("wclrtobot(%p) called", win));
startx = win->_curx;
if (win->_flags & _NEED_WRAP)
startx++;
T(("clearing from y = %d to y = %d with maxx = %d", win->_cury, win->_maxy, win->_maxx));
for (y = win->_cury; y <= win->_maxy; y++) {
minx = _NOCHANGE;
end = &win->_line[y].text[win->_maxx];
for (ptr = &win->_line[y].text[startx]; ptr <= end; ptr++) {
int blank = _nc_render(win, *ptr, BLANK);
if (*ptr != blank) {
maxx = ptr;
if (minx == _NOCHANGE)
minx = ptr - win->_line[y].text;
*ptr = blank;
}
}
if (minx != _NOCHANGE) {
if (win->_line[y].firstchar > minx
|| win->_line[y].firstchar == _NOCHANGE)
win->_line[y].firstchar = minx;
if (win->_line[y].lastchar < maxx - win->_line[y].text)
win->_line[y].lastchar = maxx - win->_line[y].text;
}
startx = 0;
}
_nc_synchook(win);
return OK;
}
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