xref: /csrg-svn/lib/libcurses/clrtobot.c (revision 42653)
122654Sdist /*
234677Sbostic  * Copyright (c) 1981 Regents of the University of California.
334677Sbostic  * All rights reserved.
434677Sbostic  *
5*42653Sbostic  * %sccs.include.redist.c%
622654Sdist  */
722654Sdist 
822654Sdist #ifndef lint
9*42653Sbostic static char sccsid[] = "@(#)clrtobot.c	5.5 (Berkeley) 06/01/90";
1034677Sbostic #endif /* not lint */
1122654Sdist 
122240Sarnold # include	"curses.ext"
132240Sarnold 
142240Sarnold /*
152240Sarnold  *	This routine erases everything on the window.
162240Sarnold  *
172240Sarnold  */
182240Sarnold wclrtobot(win)
192240Sarnold reg WINDOW	*win; {
202240Sarnold 
212240Sarnold 	reg int		y;
222240Sarnold 	reg char	*sp, *end, *maxx;
232240Sarnold 	reg int		startx, minx;
242240Sarnold 
252240Sarnold 	startx = win->_curx;
262240Sarnold 	for (y = win->_cury; y < win->_maxy; y++) {
272240Sarnold 		minx = _NOCHANGE;
282240Sarnold 		end = &win->_y[y][win->_maxx];
292240Sarnold 		for (sp = &win->_y[y][startx]; sp < end; sp++)
302240Sarnold 			if (*sp != ' ') {
312240Sarnold 				maxx = sp;
322240Sarnold 				if (minx == _NOCHANGE)
332240Sarnold 					minx = sp - win->_y[y];
342240Sarnold 				*sp = ' ';
352240Sarnold 			}
3619872Sbloom 		if (minx != _NOCHANGE)
3725281Sbloom 			touchline(win, y, minx, maxx - &win->_y[y][0]);
382240Sarnold 		startx = 0;
392240Sarnold 	}
402240Sarnold }
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