1 /****************************************************************************
2 * Copyright (c) 1998,2000,2001 Free Software Foundation, Inc. *
4 * Permission is hereby granted, free of charge, to any person obtaining a *
5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
7 * without limitation the rights to use, copy, modify, merge, publish, *
8 * distribute, distribute with modifications, sublicense, and/or sell *
9 * copies of the Software, and to permit persons to whom the Software is *
10 * furnished to do so, subject to the following conditions: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * Except as contained in this notice, the name(s) of the above copyright *
24 * holders shall not be used in advertising or otherwise to promote the *
25 * sale, use or other dealings in this Software without prior written *
27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
31 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
32 ****************************************************************************/
37 ** The routine mvwin().
41 #include <curses.priv.h>
43 MODULE_ID("$Id: lib_mvwin.c,v 1.12 2001/12/19 01:06:22 tom Exp $")
46 mvwin(WINDOW *win, int by, int bx)
48 T((T_CALLED("mvwin(%p,%d,%d)"), win, by, bx));
50 if (!win || (win->_flags & _ISPAD))
53 /* Copying subwindows is allowed, but it is expensive... */
54 if (win->_flags & _SUBWIN) {
56 WINDOW *parent = win->_parent;
57 if (parent) { /* Now comes the complicated and costly part, you should really
58 * try to avoid to move subwindows. Because a subwindow shares
59 * the text buffers with its parent, one can't do a simple
60 * memmove of the text buffers. One has to create a copy, then
61 * to relocate the subwindow and then to do a copy.
63 if ((by - parent->_begy == win->_pary) &&
64 (bx - parent->_begx == win->_parx))
65 err = OK; /* we don't actually move */
67 WINDOW *clone = dupwin(win);
69 /* now we have the clone, so relocate win */
71 werase(win); /* Erase the original place */
72 /* fill with parents background */
73 wbkgrnd(win, CHREF(parent->_nc_bkgd));
74 wsyncup(win); /* Tell the parent(s) */
80 err = copywin(clone, win,
81 0, 0, 0, 0, win->_maxy, win->_maxx, 0);
85 if (ERR == delwin(clone))
93 if (by + win->_maxy > screen_lines - 1
94 || bx + win->_maxx > screen_columns - 1
100 * Whether or not the window is moved, touch the window's contents so
101 * that a following call to 'wrefresh()' will paint the window at the
102 * new location. This ensures that if the caller has refreshed another
103 * window at the same location, that this one will be displayed.
107 returnCode(touchwin(win));