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Annotation of 43BSD/ucb/window/wwlabel.c, revision 1.1

1.1     ! root        1: #ifndef lint
        !             2: static char sccsid[] = "@(#)wwlabel.c  3.13 4/24/85";
        !             3: #endif
        !             4: 
        !             5: /*
        !             6:  * Copyright (c) 1983 Regents of the University of California,
        !             7:  * All rights reserved.  Redistribution permitted subject to
        !             8:  * the terms of the Berkeley Software License Agreement.
        !             9:  */
        !            10: 
        !            11: #include "ww.h"
        !            12: #include "char.h"
        !            13: 
        !            14: /*
        !            15:  * Label window w on f,
        !            16:  * at 1 line above w and 'where' columns from it's left edge.
        !            17:  * Gross, but it works.
        !            18:  */
        !            19: wwlabel(w, f, where, l, mode)
        !            20: struct ww *w;
        !            21: struct ww *f;
        !            22: char *l;
        !            23: {
        !            24:        int row;
        !            25:        register j;
        !            26:        int jj;
        !            27:        register char *win;
        !            28:        register union ww_char *buf;
        !            29:        register union ww_char *ns;
        !            30:        register char *fmap;
        !            31:        register char *smap;
        !            32:        char touched;
        !            33:        char *p;
        !            34: 
        !            35:        if (f->ww_fmap == 0)
        !            36:                return;
        !            37: 
        !            38:        row = w->ww_w.t - 1;
        !            39:        if (row < f->ww_i.t || row >= f->ww_i.b)
        !            40:                return;
        !            41:        win = f->ww_win[row];
        !            42:        buf = f->ww_buf[row];
        !            43:        fmap = f->ww_fmap[row];
        !            44:        ns = wwns[row];
        !            45:        smap = wwsmap[row];
        !            46:        touched = wwtouched[row];
        !            47:        mode <<= WWC_MSHIFT;
        !            48: 
        !            49:        jj = MIN(w->ww_i.r, f->ww_i.r);
        !            50:        j = w->ww_i.l + where;
        !            51:        while (j < jj && *l)
        !            52:                for (p = unctrl(*l++); j < jj && *p; j++, p++) {
        !            53:                        /* can't label if not already framed */
        !            54:                        if (win[j] & WWM_GLS)
        !            55:                                continue;
        !            56:                        if (smap[j] != f->ww_index)
        !            57:                                buf[j].c_w = mode | *p;
        !            58:                        else {
        !            59:                                ns[j].c_w = (buf[j].c_w = mode | *p)
        !            60:                                                ^ win[j] << WWC_MSHIFT;
        !            61:                                touched |= WWU_TOUCHED;
        !            62:                        }
        !            63:                        fmap[j] |= WWF_LABEL;
        !            64:                }
        !            65:        wwtouched[row] = touched;
        !            66: }

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