Now uses screen address for all buffers.

[unix-history] / usr / src / usr.bin / window / wwmove.c

#ifndef lint
static  char *sccsid = "@(#)wwmove.c    3.2 83/09/15";
#endif

#include "ww.h"

/*
* Move a window.  Should be unattached.
*/
wwmove(w, row, col)
register struct ww *w;
{
       register dr, dc;
       register i;

       if (w->ww_forw != 0 || w->ww_back != 0)
               return;                         /* sanity */

       dr = row - w->ww_w.t;
       dc = col - w->ww_w.l;

       w->ww_w.t += dr;
       w->ww_w.b += dr;
       w->ww_w.l += dc;
       w->ww_w.r += dc;

       w->ww_b.t += dr;
       w->ww_b.b += dr;
       w->ww_b.l += dc;
       w->ww_b.r += dc;

       w->ww_i.t = MAX(w->ww_w.t, 0);
       w->ww_i.b = MIN(w->ww_w.b, wwnrow);
       w->ww_i.nr = w->ww_i.b - w->ww_i.t;
       w->ww_i.l = MAX(w->ww_w.l, 0);
       w->ww_i.r = MIN(w->ww_w.r, wwncol);
       w->ww_i.nc = w->ww_i.r - w->ww_i.l;

       w->ww_cur.r += dr;
       w->ww_cur.c += dc;

       w->ww_win -= dr;
       for (i = w->ww_w.t; i < w->ww_w.b; i++)
               w->ww_win[i] -= dc;
       w->ww_cov -= dr;
       for (i = w->ww_w.t; i < w->ww_w.b; i++)
               w->ww_cov[i] -= dc;
       if (w->ww_fmap != 0) {
               w->ww_fmap -= dr;
               for (i = w->ww_w.t; i < w->ww_w.b; i++)
                       w->ww_fmap[i] -= dc;
       }
       w->ww_nvis -= dr;
       w->ww_buf -= dr;
       for (i = w->ww_b.t; i < w->ww_b.b; i++)
               w->ww_buf[i] -= dc;
}