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- /*
- * Copyright (c) 1981 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)touchwin.c 5.3 (Berkeley) 6/30/88";
- #endif /* not lint */
-
- # include "curses.ext"
-
- /*
- * make it look like the whole window has been changed.
- *
- */
- void touchwin(win)
- register WINDOW *win;
- {
- register int y, maxy;
-
- # ifdef DEBUG
- fprintf(outf, "TOUCHWIN(%0.2o)\n", win);
- # endif
- maxy = win->_maxy;
- for (y = 0; y < maxy; y++)
- touchline(win, y, 0, win->_maxx - 1);
- }
-
- /*
- * touch a given line
- */
- void touchline(win, y, sx, ex)
- register WINDOW *win;
- register int y, sx, ex;
- {
- # ifdef DEBUG
- fprintf(outf, "TOUCHLINE(%0.2o, %d, %d, %d)\n", win, y, sx, ex);
- fprintf(outf, "TOUCHLINE:first = %d, last = %d\n", win->_firstch[y], win->_lastch[y]);
- # endif
- sx += win->_ch_off;
- ex += win->_ch_off;
- if (win->_firstch[y] == _NOCHANGE) {
- win->_firstch[y] = sx;
- win->_lastch[y] = ex;
- }
- else {
- if (win->_firstch[y] > sx)
- win->_firstch[y] = sx;
- if (win->_lastch[y] < ex)
- win->_lastch[y] = ex;
- }
- # ifdef DEBUG
- fprintf(outf, "TOUCHLINE:first = %d, last = %d\n", win->_firstch[y], win->_lastch[y]);
- # endif
- }
-