[unix-history] / usr / src / lib / libcurses / clrtobot.c

# include	"curses.ext"

/*
 *	This routine erases everything on the window.
 *
 * %G% (Berkeley) @(#)clrtobot.c	1.1
 */
wclrtobot(win)
reg WINDOW	*win; {

	reg int		y;
	reg char	*sp, *end, *maxx;
	reg int		startx, minx;

	startx = win->_curx;
	for (y = win->_cury; y < win->_maxy; y++) {
		minx = _NOCHANGE;
		end = &win->_y[y][win->_maxx];
		for (sp = &win->_y[y][startx]; sp < end; sp++)
			if (*sp != ' ') {
				maxx = sp;
				if (minx == _NOCHANGE)
					minx = sp - win->_y[y];
				*sp = ' ';
			}
		if (minx != _NOCHANGE) {
			if (win->_firstch[y] > minx
			     || win->_firstch[y] == _NOCHANGE)
				win->_firstch[y] = minx;
			if (win->_lastch[y] < maxx - win->_y[y])
				win->_lastch[y] = maxx - win->_y[y];
		}
		startx = 0;
	}
	win->_curx = win->_cury = 0;
}
Commit	Line	Data
88f211d0 KA	1	# include "curses.ext"
	2
	3	/*
	4	* This routine erases everything on the window.
	5	*
	6	* %G% (Berkeley) @(#)clrtobot.c 1.1
	7	*/
	8	wclrtobot(win)
	9	reg WINDOW *win; {
	10
	11	reg int y;
	12	reg char sp, end, *maxx;
	13	reg int startx, minx;
	14
	15	startx = win->_curx;
	16	for (y = win->_cury; y < win->_maxy; y++) {
	17	minx = _NOCHANGE;
	18	end = &win->_y[y][win->_maxx];
	19	for (sp = &win->_y[y][startx]; sp < end; sp++)
	20	if (*sp != ' ') {
	21	maxx = sp;
	22	if (minx == _NOCHANGE)
	23	minx = sp - win->_y[y];
	24	*sp = ' ';
	25	}
	26	if (minx != _NOCHANGE) {
	27	if (win->_firstch[y] > minx
	28	\|\| win->_firstch[y] == _NOCHANGE)
	29	win->_firstch[y] = minx;
	30	if (win->_lastch[y] < maxx - win->_y[y])
	31	win->_lastch[y] = maxx - win->_y[y];
	32	}
	33	startx = 0;
	34	}
	35	win->_curx = win->_cury = 0;
	36	}