55f0d59917
each line that we copy. We also need to touch the destination window here. Fixes display bug in atc(6). Bug reported by and fix tested by David Holland.
136 lines
4.1 KiB
C
136 lines
4.1 KiB
C
/* $NetBSD: copywin.c,v 1.14 2007/11/08 06:39:31 jdc 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 without 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 1.14 2007/11/08 06:39:31 jdc 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.
|
|
* All these coordindinates are relative to the relevant window.
|
|
* If dooverlay 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 dooverlay)
|
|
{
|
|
int dcol;
|
|
__LDATA *sp, *end;
|
|
#ifdef HAVE_WCHAR
|
|
cchar_t cc;
|
|
nschar_t *np;
|
|
#endif /* HAVE_WCHAR */
|
|
|
|
/* overwrite() and overlay() can come here with -ve srcwin coords */
|
|
if (sminrow < 0) {
|
|
dminrow -= sminrow;
|
|
sminrow = 0;
|
|
}
|
|
if (smincol < 0) {
|
|
dmincol -= smincol;
|
|
smincol = 0;
|
|
}
|
|
|
|
/* for symmetry allow dstwin coords to be -ve as well */
|
|
if (dminrow < 0) {
|
|
sminrow -= dminrow;
|
|
dminrow = 0;
|
|
}
|
|
if (dmincol < 0) {
|
|
smincol -= dmincol;
|
|
dmincol = 0;
|
|
}
|
|
|
|
/* Bound dmaxcol for both windows (should be ok for dstwin) */
|
|
if (dmaxcol >= dstwin->maxx)
|
|
dmaxcol = dstwin->maxx - 1;
|
|
if (smincol + (dmaxcol - dmincol) >= srcwin->maxx)
|
|
dmaxcol = srcwin->maxx + dmincol - smincol - 1;
|
|
if (dmaxcol < dmincol)
|
|
/* nothing in the intersection */
|
|
return OK;
|
|
|
|
/* Bound dmaxrow for both windows (should be ok for dstwin) */
|
|
if (dmaxrow >= dstwin->maxy)
|
|
dmaxrow = dstwin->maxy - 1;
|
|
if (sminrow + (dmaxrow - dminrow) >= srcwin->maxy)
|
|
dmaxrow = srcwin->maxy + dminrow - sminrow - 1;
|
|
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_WINDOW,
|
|
"copywin %s mode: from (%d,%d) to (%d,%d-%d,%d)\n",
|
|
dooverlay ? "overlay" : "overwrite",
|
|
sminrow, smincol, dminrow, dmincol, dmaxrow, dmaxcol);
|
|
#endif
|
|
|
|
for (; dminrow <= dmaxrow; sminrow++, dminrow++) {
|
|
sp = &srcwin->lines[sminrow]->line[smincol];
|
|
end = sp + dmaxcol - dmincol;
|
|
for (dcol = dmincol; sp <= end; dcol++, sp++) {
|
|
/* XXX: Perhaps this should check for the
|
|
* background character
|
|
*/
|
|
if ((dooverlay && !isspace(sp->ch)) || !dooverlay) {
|
|
wmove(dstwin, dminrow, dcol);
|
|
#ifndef HAVE_WCHAR
|
|
__waddch(dstwin, sp);
|
|
#else
|
|
cc.vals[0] = sp->ch;
|
|
cc.attributes = sp->attr;
|
|
cc.elements = 1;
|
|
np = sp->nsp;
|
|
if (np) {
|
|
while (np && cc.elements <=
|
|
CURSES_CCHAR_MAX) {
|
|
cc.vals[cc.elements++] = np->ch;
|
|
np = np->next;
|
|
}
|
|
}
|
|
wadd_wch(dstwin, &cc);
|
|
#endif /* HAVE_WCHAR */
|
|
}
|
|
}
|
|
}
|
|
__touchwin(dstwin);
|
|
return OK;
|
|
}
|
|
|