101 lines
3.5 KiB
C
101 lines
3.5 KiB
C
/* $NetBSD: copywin.c,v 1.3 2000/04/20 13:12:14 blymn Exp $ */
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/*-
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* Copyright (c) 1998-1999 Brett Lymn
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* (blymn@baea.com.au, brett_lymn@yahoo.com.au)
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* All rights reserved.
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*
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* This code has been donated to The NetBSD Foundation by the Author.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*
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*/
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#include <ctype.h>
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#include <string.h>
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#include "curses.h"
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#include "curses_private.h"
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/*
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* copywin --
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* Copy the box starting at (sminrow, smincol) with a size that
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* matches the destination box (dminrow, dmincol) by (dmaxrow, dmaxcol)
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* from the source window srcwin to the destination window dstwin.
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* If overlay is true then the copy is nondestructive otherwise the
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* copy is destructive.
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*/
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int copywin(const WINDOW *srcwin, WINDOW *dstwin, int sminrow,
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int smincol, int dminrow, int dmincol, int dmaxrow,
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int dmaxcol, int overlay)
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{
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int starty, startx, endy, endx, x, y, y1, y2, smaxrow, smaxcol;
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__LDATA *sp, *end;
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smaxrow = sminrow + dmaxrow - dminrow;
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smaxcol = smincol + dmaxcol - dmincol;
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starty = max(sminrow, dminrow);
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startx = max(smincol, dmincol);
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endy = min(sminrow + smaxrow, dminrow + dmaxrow);
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endx = min(smincol + smaxcol, dmincol + dmaxcol);
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if (starty >= endy || startx >= endx)
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return (OK);
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if (overlay == TRUE) {
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/* non destructive copy */
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#ifdef DEBUG
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__CTRACE("copywin overlay mode: from (%d,%d) to (%d,%d)\n",
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starty, startx, endy, endx);
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#endif
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y1 = starty - sminrow;
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y2 = starty - dminrow;
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for (y = starty; y < endy; y++, y1++, y2++) {
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end = &srcwin->lines[y1]->line[endx - srcwin->begx];
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x = startx - dstwin->begx;
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for (sp = &srcwin->lines[y1]->line[startx - srcwin->begx];
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sp < end; sp++) {
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if (!isspace(sp->ch)) {
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wmove(dstwin, y2, x);
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__waddch(dstwin, sp);
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}
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x++;
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}
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}
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return (OK);
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} else {
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/* destructive copy */
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#ifdef DEBUG
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__CTRACE("copywin overwrite mode: from (%d,%d) to (%d,%d)\n",
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starty, startx, endy, endx);
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#endif
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x = endx - startx;
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for (y = starty; y < endy; y++) {
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(void) memcpy(
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&dstwin->lines[y - dstwin->begy]->line[startx - dstwin->begx],
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&srcwin->lines[y - srcwin->begy]->line[startx - srcwin->begx],
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(size_t) x * __LDATASIZE);
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__touchline(dstwin, y - dstwin->begy, (int) (startx - dstwin->begx),
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(int) (endx - dstwin->begx), 0);
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}
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return (OK);
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}
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}
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