1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * Copyright 2001 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[] = "@(#)overlay.c 1.9 89/07/13 SMI"; /* from UCB 5.2 86/02/12 */ 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 27*0Sstevel@tonic-gate #define min(a, b) ((a) < (b) ? (a) : (b)) 28*0Sstevel@tonic-gate #define max(a, b) ((a) > (b) ? (a) : (b)) 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate /* 31*0Sstevel@tonic-gate * This routine writes win1 on win2 non-destructively. 32*0Sstevel@tonic-gate */ 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate int 35*0Sstevel@tonic-gate overlay(WINDOW *win1, WINDOW *win2) 36*0Sstevel@tonic-gate { 37*0Sstevel@tonic-gate char *sp, *end; 38*0Sstevel@tonic-gate int x, y, endy, endx, starty, startx; 39*0Sstevel@tonic-gate int y1, y2; 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate #ifdef DEBUG 42*0Sstevel@tonic-gate fprintf(outf, "OVERLAY(%0.2o, %0.2o);\n", win1, win2); 43*0Sstevel@tonic-gate #endif 44*0Sstevel@tonic-gate starty = max(win1->_begy, win2->_begy); 45*0Sstevel@tonic-gate startx = max(win1->_begx, win2->_begx); 46*0Sstevel@tonic-gate endy = min(win1->_maxy + win1->_begy, win2->_maxy + win2->_begy); 47*0Sstevel@tonic-gate endx = min(win1->_maxx + win1->_begx, win2->_maxx + win2->_begx); 48*0Sstevel@tonic-gate #ifdef DEBUG 49*0Sstevel@tonic-gate fprintf(outf, "OVERLAY:from (%d,%d) to (%d,%d)\n", 50*0Sstevel@tonic-gate starty, startx, endy, endx); 51*0Sstevel@tonic-gate #endif 52*0Sstevel@tonic-gate if (starty >= endy || startx >= endx) 53*0Sstevel@tonic-gate return (OK); 54*0Sstevel@tonic-gate y1 = starty - win1->_begy; 55*0Sstevel@tonic-gate y2 = starty - win2->_begy; 56*0Sstevel@tonic-gate for (y = starty; y < endy; y++, y1++, y2++) { 57*0Sstevel@tonic-gate end = &win1->_y[y1][endx - win1->_begx]; 58*0Sstevel@tonic-gate x = startx - win2->_begx; 59*0Sstevel@tonic-gate for (sp = &win1->_y[y1][startx - win1->_begx]; sp < end; sp++) { 60*0Sstevel@tonic-gate if (!isspace(*sp)) 61*0Sstevel@tonic-gate (void) mvwaddch(win2, y2, x, *sp); 62*0Sstevel@tonic-gate x++; 63*0Sstevel@tonic-gate } 64*0Sstevel@tonic-gate } 65*0Sstevel@tonic-gate return (OK); 66*0Sstevel@tonic-gate } 67