1 /* $NetBSD: copywin.c,v 1.9 2002/01/02 10:38:27 blymn Exp $ */ 2 3 /*- 4 * Copyright (c) 1998-1999 Brett Lymn 5 * (blymn@baea.com.au, brett_lymn@yahoo.com.au) 6 * All rights reserved. 7 * 8 * This code has been donated to The NetBSD Foundation by the Author. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __RCSID("$NetBSD: copywin.c,v 1.9 2002/01/02 10:38:27 blymn Exp $"); 35 #endif /* not lint */ 36 37 #include <ctype.h> 38 #include <string.h> 39 #include "curses.h" 40 #include "curses_private.h" 41 42 /* 43 * copywin -- 44 * Copy the box starting at (sminrow, smincol) with a size that 45 * matches the destination box (dminrow, dmincol) by (dmaxrow, dmaxcol) 46 * from the source window srcwin to the destination window dstwin. 47 * If dooverlay is true then the copy is nondestructive otherwise the 48 * copy is destructive. 49 */ 50 int copywin(const WINDOW *srcwin, WINDOW *dstwin, int sminrow, 51 int smincol, int dminrow, int dmincol, int dmaxrow, 52 int dmaxcol, int dooverlay) 53 { 54 int starty, startx, endy, endx, x, y, y1, y2, smaxrow, smaxcol; 55 __LDATA *sp, *end; 56 57 smaxrow = min(sminrow + dmaxrow - dminrow, srcwin->maxy); 58 smaxcol = min(smincol + dmaxcol - dmincol, srcwin->maxx); 59 starty = max(sminrow, dminrow); 60 startx = max(smincol, dmincol); 61 endy = min(sminrow + smaxrow, dminrow + dmaxrow); 62 endx = min(smincol + smaxcol, dmincol + dmaxcol); 63 if (starty >= endy || startx >= endx) 64 return (OK); 65 66 #ifdef DEBUG 67 if (dooverlay == TRUE) { 68 __CTRACE("copywin overlay mode: from (%d,%d) to (%d,%d)\n", 69 starty, startx, endy, endx); 70 } else { 71 __CTRACE("copywin overwrite mode: from (%d,%d) to (%d,%d)\n", 72 starty, startx, endy, endx); 73 } 74 75 #endif 76 y1 = starty - sminrow; 77 y2 = starty - dminrow; 78 for (y = starty; y < endy; y++, y1++, y2++) { 79 end = &srcwin->lines[y1]->line[endx - srcwin->begx]; 80 x = startx - dstwin->begx; 81 for (sp = &srcwin->lines[y1]->line[startx - srcwin->begx]; 82 sp < end; sp++) { 83 if ((!isspace(sp->ch)) || (dooverlay == FALSE)){ 84 wmove(dstwin, y2, x); 85 __waddch(dstwin, sp); 86 } 87 x++; 88 } 89 } 90 return (OK); 91 } 92 93