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/* This work is copyrighted. See COPYRIGHT.OLD & COPYRIGHT.NEW for *
* details. If they are missing then this copy is in violation of *
* the copyright conditions. */
/*
** lib_clrbot.c
**
** The routine wclrtobot().
**
*/
#include "curses.priv.h"
int wclrtobot(WINDOW *win)
{
chtype *ptr, *end, *maxx = NULL;
int y, startx, minx;
T(("wclrtobot(%x) called", win));
startx = win->_curx;
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][win->_maxx];
for (ptr = &win->_line[y][startx]; ptr <= end; ptr++) {
chtype blank = _nc_background(win);
if (*ptr != blank) {
maxx = ptr;
if (minx == _NOCHANGE)
minx = ptr - win->_line[y];
*ptr = blank;
}
}
if (minx != _NOCHANGE) {
if (win->_firstchar[y] > minx
|| win->_firstchar[y] == _NOCHANGE)
win->_firstchar[y] = minx;
if (win->_lastchar[y] < maxx - win->_line[y])
win->_lastchar[y] = maxx - win->_line[y];
}
startx = 0;
}
return OK;
}
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