NetBSD/lib/libcurses/copywin.c

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/* $NetBSD: copywin.c,v 1.6 2000/04/26 12:29:47 blymn Exp $ */
/*-
* Copyright (c) 1998-1999 Brett Lymn
* (blymn@baea.com.au, brett_lymn@yahoo.com.au)
* All rights reserved.
*
* This code has been donated to The NetBSD Foundation by the Author.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: copywin.c,v 1.6 2000/04/26 12:29:47 blymn Exp $");
#endif /* not lint */
#include <ctype.h>
#include <string.h>
#include "curses.h"
#include "curses_private.h"
/*
* copywin --
* Copy the box starting at (sminrow, smincol) with a size that
* matches the destination box (dminrow, dmincol) by (dmaxrow, dmaxcol)
* from the source window srcwin to the destination window dstwin.
* If overlay is true then the copy is nondestructive otherwise the
* copy is destructive.
*/
int copywin(const WINDOW *srcwin, WINDOW *dstwin, int sminrow,
int smincol, int dminrow, int dmincol, int dmaxrow,
int dmaxcol, int overlay)
{
int starty, startx, endy, endx, x, y, y1, y2, smaxrow, smaxcol;
__LDATA *sp, *end;
smaxrow = min(sminrow + dmaxrow - dminrow, srcwin->maxy);
smaxcol = min(smincol + dmaxcol - dmincol, srcwin->maxx);
starty = max(sminrow, dminrow);
startx = max(smincol, dmincol);
endy = min(sminrow + smaxrow, dminrow + dmaxrow);
endx = min(smincol + smaxcol, dmincol + dmaxcol);
if (starty >= endy || startx >= endx)
return (OK);
#ifdef DEBUG
if (overlay == TRUE) {
__CTRACE("copywin overlay mode: from (%d,%d) to (%d,%d)\n",
starty, startx, endy, endx);
} else {
__CTRACE("copywin overwrite mode: from (%d,%d) to (%d,%d)\n",
starty, startx, endy, endx);
}
#endif
y1 = starty - sminrow;
y2 = starty - dminrow;
for (y = starty; y < endy; y++, y1++, y2++) {
end = &srcwin->lines[y1]->line[endx - srcwin->begx];
x = startx - dstwin->begx;
for (sp = &srcwin->lines[y1]->line[startx - srcwin->begx];
sp < end; sp++) {
if ((!isspace(sp->ch)) || (overlay == FALSE)){
wmove(dstwin, y2, x);
__waddch(dstwin, sp);
}
x++;
}
}
return (OK);
}