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

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1983 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  */
        !            17: 
        !            18: #ifndef lint
        !            19: static char sccsid[] = "@(#)wwlabel.c  3.15 (Berkeley) 6/29/88";
        !            20: #endif /* not lint */
        !            21: 
        !            22: #include "ww.h"
        !            23: #include "char.h"
        !            24: 
        !            25: /*
        !            26:  * Label window w on f,
        !            27:  * at 1 line above w and 'where' columns from it's left edge.
        !            28:  * Gross, but it works.
        !            29:  */
        !            30: wwlabel(w, f, where, l, mode)
        !            31: struct ww *w;
        !            32: struct ww *f;
        !            33: char *l;
        !            34: {
        !            35:        int row;
        !            36:        register j;
        !            37:        int jj;
        !            38:        register char *win;
        !            39:        register union ww_char *buf;
        !            40:        register union ww_char *ns;
        !            41:        register char *fmap;
        !            42:        register char *smap;
        !            43:        char touched;
        !            44:        char *p;
        !            45: 
        !            46:        if (f->ww_fmap == 0)
        !            47:                return;
        !            48: 
        !            49:        row = w->ww_w.t - 1;
        !            50:        if (row < f->ww_i.t || row >= f->ww_i.b)
        !            51:                return;
        !            52:        win = f->ww_win[row];
        !            53:        buf = f->ww_buf[row];
        !            54:        fmap = f->ww_fmap[row];
        !            55:        ns = wwns[row];
        !            56:        smap = wwsmap[row];
        !            57:        touched = wwtouched[row];
        !            58:        mode <<= WWC_MSHIFT;
        !            59: 
        !            60:        jj = MIN(w->ww_i.r, f->ww_i.r);
        !            61:        j = w->ww_i.l + where;
        !            62:        while (j < jj && *l)
        !            63:                for (p = unctrl(*l++); j < jj && *p; j++, p++) {
        !            64:                        /* can't label if not already framed */
        !            65:                        if (win[j] & WWM_GLS)
        !            66:                                continue;
        !            67:                        if (smap[j] != f->ww_index)
        !            68:                                buf[j].c_w = mode | *p;
        !            69:                        else {
        !            70:                                ns[j].c_w = (buf[j].c_w = mode | *p)
        !            71:                                                ^ win[j] << WWC_MSHIFT;
        !            72:                                touched |= WWU_TOUCHED;
        !            73:                        }
        !            74:                        fmap[j] |= WWF_LABEL;
        !            75:                }
        !            76:        wwtouched[row] = touched;
        !            77: }

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