1 /* 2 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 7 /* All Rights Reserved */ 8 9 /* 10 * Copyright (c) 1980 Regents of the University of California. 11 * All rights reserved. The Berkeley software License Agreement 12 * specifies the terms and conditions for redistribution. 13 */ 14 15 #pragma ident "%Z%%M% %I% %E% SMI" 16 17 /*LINTLIBRARY*/ 18 19 #ifndef lint 20 static char 21 sccsid[] = "@(#)toucholap.c 1.4 89/08/03 SMI"; /* from UCB 5.1 85/06/07 */ 22 #endif /* not lint */ 23 24 #include "curses.ext" 25 26 #define min(a, b) ((a) < (b) ? (a) : (b)) 27 #define max(a, b) ((a) > (b) ? (a) : (b)) 28 29 /* 30 * Touch, on win2, the part that overlaps with win1. 31 */ 32 33 int 34 touchoverlap(WINDOW *win1, WINDOW *win2) 35 { 36 int y, endy, endx, starty, startx; 37 38 #ifdef DEBUG 39 fprintf(outf, "TOUCHOVERLAP(%0.2o, %0.2o);\n", win1, win2); 40 #endif 41 starty = max(win1->_begy, win2->_begy); 42 startx = max(win1->_begx, win2->_begx); 43 endy = min(win1->_maxy + win1->_begy, win2->_maxy + win2->_begy); 44 endx = min(win1->_maxx + win1->_begx, win2->_maxx + win2->_begx); 45 #ifdef DEBUG 46 fprintf(outf, "TOUCHOVERLAP:from (%d,%d) to (%d,%d)\n", 47 starty, startx, endy, endx); 48 fprintf(outf, "TOUCHOVERLAP:win1 (%d,%d) to (%d,%d)\n", 49 win1->_begy, win1->_begx, win1->_begy + win1->_maxy, 50 win1->_begx + win1->_maxx); 51 fprintf(outf, "TOUCHOVERLAP:win2 (%d,%d) to (%d,%d)\n", 52 win2->_begy, win2->_begx, win2->_begy + win2->_maxy, 53 win2->_begx + win2->_maxx); 54 #endif 55 if (starty >= endy || startx >= endx) 56 return (OK); 57 starty -= win2->_begy; 58 startx -= win2->_begx; 59 endy -= win2->_begy; 60 endx -= win2->_begx; 61 endx--; 62 for (y = starty; y < endy; y++) 63 (void) touchline(win2, y, startx, endx); 64 return (OK); 65 } 66