1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1995, by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*
30  * mvwin.c
31  *
32  * XCurses Library
33  *
34  * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
35  *
36  */
37 
38 #ifdef M_RCSID
39 #ifndef lint
40 static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/mvwin.c 1.3 1995/06/15 19:19:58 ant Exp $";
41 #endif
42 #endif
43 
44 #include <private.h>
45 
46 /*f
47  * Move window so that the upper left-hand corner is at (x,y). If the move
48  * would cause the window to be off the screen, it is an error and the
49  * window is not moved.  Moving subwindows is allowed, but should be
50  * avoided.
51  */
52 int
mvwin(w,by,bx)53 mvwin(w, by, bx)
54 WINDOW *w;
55 int by, bx;
56 {
57 	int i, dx, dy;
58 	WINDOW *parent = w->_parent;
59 
60 #ifdef M_CURSES_TRACE
61 	__m_trace("mvwin(%p, %d, %d)", w, by, bx);
62 #endif
63 
64 	/* Check lower bounds of new window position. */
65 	if (by < 0 || bx < 0)
66 		return __m_return_code("mvwin", ERR);
67 
68 	if (parent == (WINDOW *) 0) {
69 		/* Check upper bounds of normal window. */
70 		if (lines < by + w->_maxy || columns < bx + w->_maxx)
71 			return __m_return_code("mvwin", ERR);
72 	} else {
73 		/* Check upper bounds of sub-window. */
74 		if (parent->_begy + parent->_maxy < by + w->_maxy
75 		|| parent->_begx + parent->_maxx < bx + w->_maxx)
76 			return __m_return_code("mvwin", ERR);
77 
78 		/* Move the sub-window's line pointers to the parent
79 		 * window's data.
80 		 */
81 		dy = by - parent->_begy;
82 		dx = bx - parent->_begx;
83 
84 		for (i = 0; i <= w->_maxy; ++i)
85 			w->_line[i] = &parent->_line[dy++][dx];
86 	}
87 
88 	w->_begy = by;
89 	w->_begx = bx;
90 	(void) wtouchln(w, 0, w->_maxy, 1);
91 
92 	return __m_return_code("mvwin", OK);
93 }
94 
95 int
mvderwin(w,py,px)96 mvderwin(w, py, px)
97 WINDOW *w;
98 int py, px;
99 {
100 	int code;
101 	WINDOW *parent;
102 
103 #ifdef M_CURSES_TRACE
104 	__m_trace("mvderwin(%p, %d, %d)", w, py, px);
105 #endif
106 
107 	parent = w->_parent;
108 
109 	if (parent == (WINDOW *) 0)
110 		return __m_return_code("mvderwin", ERR);
111 
112 	/* Absolute screen address. */
113 	py += parent->_begy;
114 	px += parent->_begx;
115 
116 	code = mvwin(w, py, px);
117 
118 	return __m_return_code("mvderwin", code);
119 }
120