1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
3*0Sstevel@tonic-gate * Use is subject to license terms.
4*0Sstevel@tonic-gate */
5*0Sstevel@tonic-gate
6*0Sstevel@tonic-gate /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
7*0Sstevel@tonic-gate /* All Rights Reserved */
8*0Sstevel@tonic-gate
9*0Sstevel@tonic-gate /*
10*0Sstevel@tonic-gate * Copyright (c) 1980 Regents of the University of California.
11*0Sstevel@tonic-gate * All rights reserved. The Berkeley software License Agreement
12*0Sstevel@tonic-gate * specifies the terms and conditions for redistribution.
13*0Sstevel@tonic-gate */
14*0Sstevel@tonic-gate
15*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
16*0Sstevel@tonic-gate
17*0Sstevel@tonic-gate /*LINTLIBRARY*/
18*0Sstevel@tonic-gate
19*0Sstevel@tonic-gate #ifndef lint
20*0Sstevel@tonic-gate static char
21*0Sstevel@tonic-gate sccsid[] = "@(#)overwrite.c 1.7 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
22*0Sstevel@tonic-gate #endif /* not lint */
23*0Sstevel@tonic-gate
24*0Sstevel@tonic-gate #include "curses.ext"
25*0Sstevel@tonic-gate #include <ctype.h>
26*0Sstevel@tonic-gate #include <string.h>
27*0Sstevel@tonic-gate
28*0Sstevel@tonic-gate #define min(a, b) ((a) < (b) ? (a) : (b))
29*0Sstevel@tonic-gate #define max(a, b) ((a) > (b) ? (a) : (b))
30*0Sstevel@tonic-gate
31*0Sstevel@tonic-gate /*
32*0Sstevel@tonic-gate * This routine writes win1 on win2 destructively.
33*0Sstevel@tonic-gate */
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate int
overwrite(WINDOW * win1,WINDOW * win2)36*0Sstevel@tonic-gate overwrite(WINDOW *win1, WINDOW *win2)
37*0Sstevel@tonic-gate {
38*0Sstevel@tonic-gate int x, y, endy, endx, starty, startx;
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate #ifdef DEBUG
41*0Sstevel@tonic-gate fprintf(outf, "OVERWRITE(%0.2o, %0.2o);\n", win1, win2);
42*0Sstevel@tonic-gate #endif
43*0Sstevel@tonic-gate starty = max(win1->_begy, win2->_begy);
44*0Sstevel@tonic-gate startx = max(win1->_begx, win2->_begx);
45*0Sstevel@tonic-gate endy = min(win1->_maxy + win1->_begy, win2->_maxy + win2->_begy);
46*0Sstevel@tonic-gate endx = min(win1->_maxx + win1->_begx, win2->_maxx + win2->_begx);
47*0Sstevel@tonic-gate if (starty >= endy || startx >= endx)
48*0Sstevel@tonic-gate return (OK);
49*0Sstevel@tonic-gate #ifdef DEBUG
50*0Sstevel@tonic-gate fprintf(outf, "OVERWRITE:from (%d,%d) to (%d,%d)\n",
51*0Sstevel@tonic-gate starty, startx, endy, endx);
52*0Sstevel@tonic-gate #endif
53*0Sstevel@tonic-gate x = endx - startx;
54*0Sstevel@tonic-gate for (y = starty; y < endy; y++) {
55*0Sstevel@tonic-gate (void) memmove(&win2->_y[y - win2->_begy][startx - win2->_begx],
56*0Sstevel@tonic-gate &win1->_y[y - win1->_begy][startx - win1->_begx], x);
57*0Sstevel@tonic-gate (void) touchline(win2, y, startx - win2->_begx,
58*0Sstevel@tonic-gate endx - win2->_begx);
59*0Sstevel@tonic-gate }
60*0Sstevel@tonic-gate return (OK);
61*0Sstevel@tonic-gate }
62