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Annotation of 43BSDReno/usr.bin/window/wwlabel.c, revision 1.1.1.1

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[] = "@(#)wwlabel.c  3.17 (Berkeley) 6/6/90";
                     25: #endif /* not lint */
                     26: 
                     27: #include "ww.h"
                     28: #include "char.h"
                     29: 
                     30: /*
                     31:  * Label window w on f,
                     32:  * at 1 line above w and 'where' columns from it's left edge.
                     33:  * Gross, but it works.
                     34:  */
                     35: wwlabel(w, f, where, l, mode)
                     36: struct ww *w;
                     37: struct ww *f;
                     38: char *l;
                     39: {
                     40:        int row;
                     41:        register j;
                     42:        int jj;
                     43:        register char *win;
                     44:        register union ww_char *buf;
                     45:        register union ww_char *ns;
                     46:        register char *fmap;
                     47:        register char *smap;
                     48:        char touched;
                     49:        char *p;
                     50: 
                     51:        if (f->ww_fmap == 0)
                     52:                return;
                     53: 
                     54:        row = w->ww_w.t - 1;
                     55:        if (row < f->ww_i.t || row >= f->ww_i.b)
                     56:                return;
                     57:        win = f->ww_win[row];
                     58:        buf = f->ww_buf[row];
                     59:        fmap = f->ww_fmap[row];
                     60:        ns = wwns[row];
                     61:        smap = wwsmap[row];
                     62:        touched = wwtouched[row];
                     63:        mode <<= WWC_MSHIFT;
                     64: 
                     65:        jj = MIN(w->ww_i.r, f->ww_i.r);
                     66:        j = w->ww_i.l + where;
                     67:        while (j < jj && *l)
                     68:                for (p = unctrl(*l++); j < jj && *p; j++, p++) {
                     69:                        /* can't label if not already framed */
                     70:                        if (win[j] & WWM_GLS)
                     71:                                continue;
                     72:                        if (smap[j] != f->ww_index)
                     73:                                buf[j].c_w = mode | *p;
                     74:                        else {
                     75:                                ns[j].c_w = (buf[j].c_w = mode | *p)
                     76:                                                ^ win[j] << WWC_MSHIFT;
                     77:                                touched |= WWU_TOUCHED;
                     78:                        }
                     79:                        fmap[j] |= WWF_LABEL;
                     80:                }
                     81:        wwtouched[row] = touched;
                     82: }

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