Return to wwinsline.c CVS log

Up to [CSRG BSD Unix] / 43BSDReno / usr.bin / window

Annotation of 43BSDReno/usr.bin/window/wwinsline.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[] = "@(#)wwinsline.c        3.12 (Berkeley) 6/6/90";
                     25: #endif /* not lint */
                     26: 
                     27: #include "ww.h"
                     28: 
                     29: wwinsline(w, row)
                     30: register struct ww *w;
                     31: int row;
                     32: {
                     33:        register i;
                     34:        register union ww_char **cpp, **cqq;
                     35:        register union ww_char *cp;
                     36:        int row1, row2;
                     37:        char deleted;
                     38:        int visible;
                     39: 
                     40:        /*
                     41:         * Scroll first.
                     42:         */
                     43:        if ((row1 = row) < w->ww_i.t) {
                     44:                row1 = w->ww_i.t;
                     45:                visible = 0;
                     46:        } else
                     47:                visible = 1;
                     48:        if ((row2 = w->ww_b.b) > w->ww_i.b) {
                     49:                row2 = w->ww_i.b;
                     50:        }
                     51:        deleted = wwscroll1(w, row1, row2, -1, visible);
                     52: 
                     53:        /*
                     54:         * Fix the buffer.
                     55:         * But leave clearing the last line for wwclreol().
                     56:         */
                     57:        cpp = &w->ww_buf[w->ww_b.b];
                     58:        cqq = cpp - 1;
                     59:        cp = *cqq;
                     60:        for (i = w->ww_b.b - row; --i > 0;)
                     61:                *--cpp = *--cqq;
                     62:        *cqq = cp;
                     63: 
                     64:        /*
                     65:         * Now clear the last line.
                     66:         */
                     67:        if (visible)
                     68:                wwclreol1(w, row, w->ww_b.l, deleted);
                     69:        else {
                     70:                cp += w->ww_b.l;
                     71:                for (i = w->ww_b.nc; --i >= 0;)
                     72:                        cp++->c_w = ' ';
                     73:        }
                     74: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.