122678Sdist /* 234677Sbostic * Copyright (c) 1981 Regents of the University of California. 334677Sbostic * All rights reserved. 434677Sbostic * 5*42655Sbostic * %sccs.include.redist.c% 622678Sdist */ 722678Sdist 822678Sdist #ifndef lint 9*42655Sbostic static char sccsid[] = "@(#)overwrite.c 5.4 (Berkeley) 06/01/90"; 1034677Sbostic #endif /* not lint */ 1122678Sdist 125866Sarnold # include "curses.ext" 1319890Sbloom # include <ctype.h> 142259Sarnold 152259Sarnold # define min(a,b) (a < b ? a : b) 1619890Sbloom # define max(a,b) (a > b ? a : b) 172259Sarnold 182259Sarnold /* 192259Sarnold * This routine writes win1 on win2 destructively. 202259Sarnold * 212259Sarnold */ 222259Sarnold overwrite(win1, win2) 232259Sarnold reg WINDOW *win1, *win2; { 242259Sarnold 2519890Sbloom reg char *sp, *end; 2619890Sbloom reg int x, y, endy, endx, starty, startx; 272259Sarnold 282259Sarnold # ifdef DEBUG 2919890Sbloom fprintf(outf, "OVERWRITE(%0.2o, %0.2o);\n", win1, win2); 302259Sarnold # endif 3119890Sbloom starty = max(win1->_begy, win2->_begy); 3219890Sbloom startx = max(win1->_begx, win2->_begx); 3319890Sbloom endy = min(win1->_maxy + win1->_begy, win2->_maxy + win2->_begx); 3419890Sbloom endx = min(win1->_maxx + win1->_begx, win2->_maxx + win2->_begx); 3519890Sbloom if (starty >= endy || startx >= endx) 3619890Sbloom return; 372259Sarnold # ifdef DEBUG 3819890Sbloom fprintf(outf, "OVERWRITE:from (%d,%d) to (%d,%d)\n", starty, startx, endy, endx); 392259Sarnold # endif 4019890Sbloom x = endx - startx; 4119890Sbloom for (y = starty; y < endy; y++) { 4219890Sbloom bcopy(&win1->_y[y - win1->_begy][startx - win1->_begx], 4319890Sbloom &win2->_y[y - win2->_begy][startx - win2->_begx], x); 4419890Sbloom touchline(win2, y, startx - win2->_begx, endx - win2->_begx); 4519890Sbloom } 462259Sarnold } 47