/* $OpenBSD: lib_mvwin.c,v 1.3 2010/01/12 23:22:06 nicm Exp $ */

/****************************************************************************

 * Copyright (c) 1998-2001,2006 Free Software Foundation, Inc.              *

 *                                                                          *

 * Permission is hereby granted, free of charge, to any person obtaining a  *

 * copy of this software and associated documentation files (the            *

 * "Software"), to deal in the Software without restriction, including      *

 * without limitation the rights to use, copy, modify, merge, publish,      *

 * distribute, distribute with modifications, sublicense, and/or sell       *

 * copies of the Software, and to permit persons to whom the Software is    *

 * furnished to do so, subject to the following conditions:                 *

 *                                                                          *

 * The above copyright notice and this permission notice shall be included  *

 * in all copies or substantial portions of the Software.                   *

 *                                                                          *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *

 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *

 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *

 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *

 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *

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 *                                                                          *

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/****************************************************************************

 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *

 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *

 ****************************************************************************/

/*

**	lib_mvwin.c

**

**	The routine mvwin().

**

*/

#include <curses.priv.h>

MODULE_ID("$Id: lib_mvwin.c,v 1.3 2010/01/12 23:22:06 nicm Exp $")

NCURSES_EXPORT(int)

mvwin(WINDOW *win, int by, int bx)

{

    T((T_CALLED("mvwin(%p,%d,%d)"), win, by, bx));

    /*

     * mvwin() should only modify the indices.  See test/demo_menus.c and

     * test/movewindow.c for examples.

     */

#if 0

    /* Copying subwindows is allowed, but it is expensive... */

    if (win->_flags & _SUBWIN) {

	int err = ERR;

	WINDOW *parent = win->_parent;

	if (parent) {		/* Now comes the complicated and costly part, you should really

				 * try to avoid to move subwindows. Because a subwindow shares

				 * the text buffers with its parent, one can't do a simple

				 * memmove of the text buffers. One has to create a copy, then

				 * to relocate the subwindow and then to do a copy.

				 */

	    if ((by - parent->_begy == win->_pary) &&

		(bx - parent->_begx == win->_parx))

		err = OK;	/* we don't actually move */

	    else {

		WINDOW *clone = dupwin(win);

		if (clone) {

		    /* now we have the clone, so relocate win */

		    werase(win);	/* Erase the original place     */

		    /* fill with parents background */

		    wbkgrnd(win, CHREF(parent->_nc_bkgd));

		    wsyncup(win);	/* Tell the parent(s)           */

		    err = mvderwin(win,

				   by - parent->_begy,

				   bx - parent->_begx);

		    if (err != ERR) {

			err = copywin(clone, win,

				      0, 0, 0, 0, win->_maxy, win->_maxx, 0);

			if (ERR != err)

			    wsyncup(win);

		    }

		    if (ERR == delwin(clone))

			err = ERR;

		}

	    }

	}

	returnCode(err);

    }

#endif

    /*

     * Whether or not the window is moved, touch the window's contents so

     * that a following call to 'wrefresh()' will paint the window at the

     * new location.  This ensures that if the caller has refreshed another

     * window at the same location, that this one will be displayed.

     */

}