4.3BSD - /usr/src/ucb/window/wwredrawwin.c

   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: }

Defined functions

Defined variables