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[] = "@(#)toucholap.c 1.4 89/08/03 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
26*0Sstevel@tonic-gate #define min(a, b) ((a) < (b) ? (a) : (b))
27*0Sstevel@tonic-gate #define max(a, b) ((a) > (b) ? (a) : (b))
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate /*
30*0Sstevel@tonic-gate * Touch, on win2, the part that overlaps with win1.
31*0Sstevel@tonic-gate */
32*0Sstevel@tonic-gate
33*0Sstevel@tonic-gate int
touchoverlap(WINDOW * win1,WINDOW * win2)34*0Sstevel@tonic-gate touchoverlap(WINDOW *win1, WINDOW *win2)
35*0Sstevel@tonic-gate {
36*0Sstevel@tonic-gate int y, endy, endx, starty, startx;
37*0Sstevel@tonic-gate
38*0Sstevel@tonic-gate #ifdef DEBUG
39*0Sstevel@tonic-gate fprintf(outf, "TOUCHOVERLAP(%0.2o, %0.2o);\n", win1, win2);
40*0Sstevel@tonic-gate #endif
41*0Sstevel@tonic-gate starty = max(win1->_begy, win2->_begy);
42*0Sstevel@tonic-gate startx = max(win1->_begx, win2->_begx);
43*0Sstevel@tonic-gate endy = min(win1->_maxy + win1->_begy, win2->_maxy + win2->_begy);
44*0Sstevel@tonic-gate endx = min(win1->_maxx + win1->_begx, win2->_maxx + win2->_begx);
45*0Sstevel@tonic-gate #ifdef DEBUG
46*0Sstevel@tonic-gate fprintf(outf, "TOUCHOVERLAP:from (%d,%d) to (%d,%d)\n",
47*0Sstevel@tonic-gate starty, startx, endy, endx);
48*0Sstevel@tonic-gate fprintf(outf, "TOUCHOVERLAP:win1 (%d,%d) to (%d,%d)\n",
49*0Sstevel@tonic-gate win1->_begy, win1->_begx, win1->_begy + win1->_maxy,
50*0Sstevel@tonic-gate win1->_begx + win1->_maxx);
51*0Sstevel@tonic-gate fprintf(outf, "TOUCHOVERLAP:win2 (%d,%d) to (%d,%d)\n",
52*0Sstevel@tonic-gate win2->_begy, win2->_begx, win2->_begy + win2->_maxy,
53*0Sstevel@tonic-gate win2->_begx + win2->_maxx);
54*0Sstevel@tonic-gate #endif
55*0Sstevel@tonic-gate if (starty >= endy || startx >= endx)
56*0Sstevel@tonic-gate return (OK);
57*0Sstevel@tonic-gate starty -= win2->_begy;
58*0Sstevel@tonic-gate startx -= win2->_begx;
59*0Sstevel@tonic-gate endy -= win2->_begy;
60*0Sstevel@tonic-gate endx -= win2->_begx;
61*0Sstevel@tonic-gate endx--;
62*0Sstevel@tonic-gate for (y = starty; y < endy; y++)
63*0Sstevel@tonic-gate (void) touchline(win2, y, startx, endx);
64*0Sstevel@tonic-gate return (OK);
65*0Sstevel@tonic-gate }
66