GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcurses/base/lib_mvwin.c Lines: 0 10 0.0 %
Date: 2017-11-13 Branches: 0 10 0.0 %

Line Branch Exec Source
1
/* $OpenBSD: lib_mvwin.c,v 1.3 2010/01/12 23:22:06 nicm Exp $ */
2
3
/****************************************************************************
4
 * Copyright (c) 1998-2001,2006 Free Software Foundation, Inc.              *
5
 *                                                                          *
6
 * Permission is hereby granted, free of charge, to any person obtaining a  *
7
 * copy of this software and associated documentation files (the            *
8
 * "Software"), to deal in the Software without restriction, including      *
9
 * without limitation the rights to use, copy, modify, merge, publish,      *
10
 * distribute, distribute with modifications, sublicense, and/or sell       *
11
 * copies of the Software, and to permit persons to whom the Software is    *
12
 * furnished to do so, subject to the following conditions:                 *
13
 *                                                                          *
14
 * The above copyright notice and this permission notice shall be included  *
15
 * in all copies or substantial portions of the Software.                   *
16
 *                                                                          *
17
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
18
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
19
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
20
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
21
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
22
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
23
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
24
 *                                                                          *
25
 * Except as contained in this notice, the name(s) of the above copyright   *
26
 * holders shall not be used in advertising or otherwise to promote the     *
27
 * sale, use or other dealings in this Software without prior written       *
28
 * authorization.                                                           *
29
 ****************************************************************************/
30
31
/****************************************************************************
32
 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
33
 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
34
 ****************************************************************************/
35
36
/*
37
**	lib_mvwin.c
38
**
39
**	The routine mvwin().
40
**
41
*/
42
43
#include <curses.priv.h>
44
45
MODULE_ID("$Id: lib_mvwin.c,v 1.3 2010/01/12 23:22:06 nicm Exp $")
46
47
NCURSES_EXPORT(int)
48
mvwin(WINDOW *win, int by, int bx)
49
{
50
    T((T_CALLED("mvwin(%p,%d,%d)"), win, by, bx));
51
52
    if (!win || (win->_flags & _ISPAD))
53
	returnCode(ERR);
54
55
    /*
56
     * mvwin() should only modify the indices.  See test/demo_menus.c and
57
     * test/movewindow.c for examples.
58
     */
59
#if 0
60
    /* Copying subwindows is allowed, but it is expensive... */
61
    if (win->_flags & _SUBWIN) {
62
	int err = ERR;
63
	WINDOW *parent = win->_parent;
64
	if (parent) {		/* Now comes the complicated and costly part, you should really
65
				 * try to avoid to move subwindows. Because a subwindow shares
66
				 * the text buffers with its parent, one can't do a simple
67
				 * memmove of the text buffers. One has to create a copy, then
68
				 * to relocate the subwindow and then to do a copy.
69
				 */
70
	    if ((by - parent->_begy == win->_pary) &&
71
		(bx - parent->_begx == win->_parx))
72
		err = OK;	/* we don't actually move */
73
	    else {
74
		WINDOW *clone = dupwin(win);
75
		if (clone) {
76
		    /* now we have the clone, so relocate win */
77
78
		    werase(win);	/* Erase the original place     */
79
		    /* fill with parents background */
80
		    wbkgrnd(win, CHREF(parent->_nc_bkgd));
81
		    wsyncup(win);	/* Tell the parent(s)           */
82
83
		    err = mvderwin(win,
84
				   by - parent->_begy,
85
				   bx - parent->_begx);
86
		    if (err != ERR) {
87
			err = copywin(clone, win,
88
				      0, 0, 0, 0, win->_maxy, win->_maxx, 0);
89
			if (ERR != err)
90
			    wsyncup(win);
91
		    }
92
		    if (ERR == delwin(clone))
93
			err = ERR;
94
		}
95
	    }
96
	}
97
	returnCode(err);
98
    }
99
#endif
100
101
    if (by + win->_maxy > screen_lines - 1
102
	|| bx + win->_maxx > screen_columns - 1
103
	|| by < 0
104
	|| bx < 0)
105
	returnCode(ERR);
106
107
    /*
108
     * Whether or not the window is moved, touch the window's contents so
109
     * that a following call to 'wrefresh()' will paint the window at the
110
     * new location.  This ensures that if the caller has refreshed another
111
     * window at the same location, that this one will be displayed.
112
     */
113
    win->_begy = by;
114
    win->_begx = bx;
115
    returnCode(touchwin(win));
116
}