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Annotation of 43BSDTahoe/ucb/window/wwcursor.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:  * 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[] = "@(#)wwcursor.c 3.10 (Berkeley) 6/29/88";
                     20: #endif /* not lint */
                     21: 
                     22: #include "ww.h"
                     23: 
                     24: wwcursor(w, on)
                     25: register struct ww *w;
                     26: {
                     27:        register char *win;
                     28: 
                     29:        if (on) {
                     30:                if (w->ww_hascursor)
                     31:                        return;
                     32:                w->ww_hascursor = 1;
                     33:        } else {
                     34:                if (!w->ww_hascursor)
                     35:                        return;
                     36:                w->ww_hascursor = 0;
                     37:        }
                     38:        if (wwcursormodes != 0) {
                     39:                win = &w->ww_win[w->ww_cur.r][w->ww_cur.c];
                     40:                *win ^= wwcursormodes;
                     41:                if (w->ww_cur.r < w->ww_i.t || w->ww_cur.r >= w->ww_i.b
                     42:                    || w->ww_cur.c < w->ww_i.l || w->ww_cur.c >= w->ww_i.r)
                     43:                        return;
                     44:                if (wwsmap[w->ww_cur.r][w->ww_cur.c] == w->ww_index) {
                     45:                        if (*win == 0)
                     46:                                w->ww_nvis[w->ww_cur.r]++;
                     47:                        else if (*win == wwcursormodes)
                     48:                                w->ww_nvis[w->ww_cur.r]--;
                     49:                        wwns[w->ww_cur.r][w->ww_cur.c].c_m ^= wwcursormodes;
                     50:                        wwtouched[w->ww_cur.r] |= WWU_TOUCHED;
                     51:                }
                     52:        }
                     53: }
                     54: 
                     55: wwsetcursormodes(new)
                     56: register new;
                     57: {
                     58:        register i;
                     59:        register struct ww *w;
                     60:        register old = wwcursormodes;
                     61: 
                     62:        new &= wwavailmodes;
                     63:        if (new == wwcursormodes)
                     64:                return;
                     65:        for (i = 0; i < NWW; i++)
                     66:                if (wwindex[i] != 0 && (w = wwindex[i])->ww_hascursor) {
                     67:                        wwcursor(w, 0);
                     68:                        wwcursormodes = new;
                     69:                        wwcursor(w, 1);
                     70:                        wwcursormodes = old;
                     71:                }
                     72:        wwcursormodes = new;
                     73: }

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