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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_erase.c
**
** The routine werase().
**
*/
#include "curses.priv.h"
#include "terminfo.h"
int werase(WINDOW *win)
{
int y;
chtype *sp, *end, *start, *maxx = NULL;
int minx;
T(("werase(%x) called", win));
for (y = win->_regtop; y <= win->_regbottom; y++) {
minx = _NOCHANGE;
start = win->_line[y];
end = &start[win->_maxx];
maxx = start;
for (sp = start; sp <= end; sp++) {
maxx = sp;
if (minx == _NOCHANGE)
minx = sp - start;
*sp = _nc_background(win);
}
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];
}
}
win->_curx = win->_cury = 0;
return OK;
}
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