GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcurses/base/lib_mvwin.c Lines: 0 10 0.0 %
Date: 2017-11-07 Branches: 0 10 0.0 %

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/* $OpenBSD: lib_mvwin.c,v 1.3 2010/01/12 23:22:06 nicm Exp $ */
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/****************************************************************************
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 * Copyright (c) 1998-2001,2006 Free Software Foundation, Inc.              *
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 *                                                                          *
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 * Permission is hereby granted, free of charge, to any person obtaining a  *
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 * copy of this software and associated documentation files (the            *
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 * "Software"), to deal in the Software without restriction, including      *
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 * without limitation the rights to use, copy, modify, merge, publish,      *
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 * distribute, distribute with modifications, sublicense, and/or sell       *
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 * copies of the Software, and to permit persons to whom the Software is    *
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 * furnished to do so, subject to the following conditions:                 *
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 *                                                                          *
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 * The above copyright notice and this permission notice shall be included  *
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 * in all copies or substantial portions of the Software.                   *
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 *                                                                          *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
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 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
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 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
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 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
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 *                                                                          *
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 * Except as contained in this notice, the name(s) of the above copyright   *
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 * holders shall not be used in advertising or otherwise to promote the     *
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 * sale, use or other dealings in this Software without prior written       *
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 * authorization.                                                           *
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 ****************************************************************************/
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/****************************************************************************
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 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
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 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
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 ****************************************************************************/
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/*
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**	lib_mvwin.c
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**
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**	The routine mvwin().
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**
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*/
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#include <curses.priv.h>
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MODULE_ID("$Id: lib_mvwin.c,v 1.3 2010/01/12 23:22:06 nicm Exp $")
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NCURSES_EXPORT(int)
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mvwin(WINDOW *win, int by, int bx)
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{
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    T((T_CALLED("mvwin(%p,%d,%d)"), win, by, bx));
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    if (!win || (win->_flags & _ISPAD))
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	returnCode(ERR);
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    /*
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     * mvwin() should only modify the indices.  See test/demo_menus.c and
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     * test/movewindow.c for examples.
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     */
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#if 0
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    /* Copying subwindows is allowed, but it is expensive... */
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    if (win->_flags & _SUBWIN) {
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	int err = ERR;
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	WINDOW *parent = win->_parent;
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	if (parent) {		/* Now comes the complicated and costly part, you should really
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				 * try to avoid to move subwindows. Because a subwindow shares
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				 * the text buffers with its parent, one can't do a simple
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				 * memmove of the text buffers. One has to create a copy, then
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				 * to relocate the subwindow and then to do a copy.
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				 */
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	    if ((by - parent->_begy == win->_pary) &&
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		(bx - parent->_begx == win->_parx))
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		err = OK;	/* we don't actually move */
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	    else {
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		WINDOW *clone = dupwin(win);
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		if (clone) {
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		    /* now we have the clone, so relocate win */
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		    werase(win);	/* Erase the original place     */
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		    /* fill with parents background */
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		    wbkgrnd(win, CHREF(parent->_nc_bkgd));
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		    wsyncup(win);	/* Tell the parent(s)           */
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		    err = mvderwin(win,
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				   by - parent->_begy,
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				   bx - parent->_begx);
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		    if (err != ERR) {
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			err = copywin(clone, win,
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				      0, 0, 0, 0, win->_maxy, win->_maxx, 0);
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			if (ERR != err)
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			    wsyncup(win);
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		    }
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		    if (ERR == delwin(clone))
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			err = ERR;
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		}
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	    }
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	}
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	returnCode(err);
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    }
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#endif
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    if (by + win->_maxy > screen_lines - 1
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	|| bx + win->_maxx > screen_columns - 1
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	|| by < 0
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	|| bx < 0)
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	returnCode(ERR);
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    /*
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     * Whether or not the window is moved, touch the window's contents so
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     * that a following call to 'wrefresh()' will paint the window at the
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     * new location.  This ensures that if the caller has refreshed another
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     * window at the same location, that this one will be displayed.
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     */
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    win->_begy = by;
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    win->_begx = bx;
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    returnCode(touchwin(win));
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}