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

1.1     ! root        1: #ifndef lint
        !             2: static char sccsid[] = "@(#)wwredrawwin.c      3.10 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: 
        !            13: wwredrawwin1(w, row1, row2, offset)
        !            14: register struct ww *w;
        !            15: int row1, row2, offset;
        !            16: {
        !            17:        int row;
        !            18:        register col;
        !            19:        register char *smap;
        !            20:        register union ww_char *buf;
        !            21:        register char *win;
        !            22:        register union ww_char *ns;
        !            23:        int nchanged;
        !            24: 
        !            25:        for (row = row1; row < row2; row++) {
        !            26:                col = w->ww_i.l;
        !            27:                ns = wwns[row];
        !            28:                smap = &wwsmap[row][col];
        !            29:                buf = w->ww_buf[row + offset];
        !            30:                win = w->ww_win[row];
        !            31:                nchanged = 0;
        !            32:                for (; col < w->ww_i.r; col++)
        !            33:                        if (*smap++ == w->ww_index) {
        !            34:                                nchanged++;
        !            35:                                ns[col].c_w =
        !            36:                                        buf[col].c_w ^ win[col] << WWC_MSHIFT;
        !            37:                        }
        !            38:                if (nchanged > 4)
        !            39:                        wwtouched[row] |= WWU_MAJOR|WWU_TOUCHED;
        !            40:                else if (nchanged > 0)
        !            41:                        wwtouched[row] |= WWU_TOUCHED;
        !            42:        }
        !            43: }

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