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Annotation of 43BSDReno/usr.bin/window/wwmisc.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1983 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * This code is derived from software contributed to Berkeley by
        !             6:  * Edward Wang at The University of California, Berkeley.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms are permitted provided
        !             9:  * that: (1) source distributions retain this entire copyright notice and
        !            10:  * comment, and (2) distributions including binaries display the following
        !            11:  * acknowledgement:  ``This product includes software developed by the
        !            12:  * University of California, Berkeley and its contributors'' in the
        !            13:  * documentation or other materials provided with the distribution and in
        !            14:  * all advertising materials mentioning features or use of this software.
        !            15:  * Neither the name of the University nor the names of its contributors may
        !            16:  * be used to endorse or promote products derived from this software without
        !            17:  * specific prior written permission.
        !            18:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            19:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            20:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            21:  */
        !            22: 
        !            23: #ifndef lint
        !            24: static char sccsid[] = "@(#)wwmisc.c   3.14 (Berkeley) 6/6/90";
        !            25: #endif /* not lint */
        !            26: 
        !            27: #include "ww.h"
        !            28: #include "tt.h"
        !            29: #include "char.h"
        !            30: 
        !            31: /*
        !            32:  * Sufficient but not necessary test for total visibility.
        !            33:  */
        !            34: wwvisible(w)
        !            35: register struct ww *w;
        !            36: {
        !            37:        register i;
        !            38:        register nvis = 0;
        !            39: 
        !            40:        for (i = w->ww_i.t; i < w->ww_i.b; i++)
        !            41:                nvis += w->ww_nvis[i];
        !            42:        if (w->ww_hascursor
        !            43:            && w->ww_cur.r >= w->ww_i.t && w->ww_cur.r < w->ww_i.b
        !            44:            && w->ww_cur.c >= w->ww_i.l && w->ww_cur.c < w->ww_i.r
        !            45:            && wwsmap[w->ww_cur.r][w->ww_cur.c] == w->ww_index)
        !            46:                nvis++;
        !            47:        return nvis == w->ww_i.nr * w->ww_i.nc;
        !            48: }
        !            49: 
        !            50: wwbell()
        !            51: {
        !            52:        ttputc(ctrl('g'));
        !            53: }

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