xref: /minix/external/bsd/less/dist/scrsize.c (revision 84d9c625)
1 /*	$NetBSD: scrsize.c,v 1.3 2013/09/04 19:44:21 tron Exp $	*/
2 
3 /*
4  * Copyright (C) 1984-2012  Mark Nudelman
5  *
6  * You may distribute under the terms of either the GNU General Public
7  * License or the Less License, as specified in the README file.
8  *
9  * For more information, see the README file.
10  */
11 
12 /*
13  * This program is used to determine the screen dimensions on OS/2 systems.
14  * Adapted from code written by Kyosuke Tokoro (NBG01720@nifty.ne.jp).
15  */
16 
17 /*
18  * When I wrote this routine, I consulted some part of the source code
19  * of the xwininfo utility by X Consortium.
20  *
21  * Copyright (c) 1987, X Consortium
22  *
23  * Permission is hereby granted, free of charge, to any person obtaining a copy
24  * of this software and associated documentation files (the "Software"), to
25  * deal in the Software without restriction, including without limitation the
26  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
27  * sell copies of the Software, and to permit persons to whom the Software is
28  * furnished to do so, subject to the following conditions:
29  *
30  * The above copyright notice and this permission notice shall be included in
31  * all copies or substantial portions of the Software.
32  *
33  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
34  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
35  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
36  * X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
37  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
38  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
39  *
40  * Except as contained in this notice, the name of the X Consortium shall not
41  * be used in advertising or otherwise to promote the sale, use or other
42  * dealings in this Software without prior written authorization from the X
43  * Consortium.
44  */
45 #include <X11/Xlib.h>
46 #include <X11/Xutil.h>
47 #include <stdlib.h>
48 #include <stdio.h>
49 
get_winsize(dpy,window,p_width,p_height)50 static int get_winsize(dpy, window, p_width, p_height)
51 	Display *dpy;
52 	Window window;
53 	int *p_width;
54 	int *p_height;
55 {
56 	XWindowAttributes win_attributes;
57 	XSizeHints hints;
58 	long longjunk;
59 
60 	if (!XGetWindowAttributes(dpy, window, &win_attributes))
61 		return 1;
62 	if (!XGetWMNormalHints(dpy, window, &hints, &longjunk))
63 		return 1;
64 	if (!(hints.flags & PResizeInc))
65 		return 1;
66 	if (hints.width_inc == 0 || hints.height_inc == 0)
67 		return 1;
68 	if (!(hints.flags & (PBaseSize|PMinSize)))
69 		return 1;
70 	if (hints.flags & PBaseSize)
71 	{
72 		win_attributes.width -= hints.base_width;
73 		win_attributes.height -= hints.base_height;
74 	} else
75 	{
76 		win_attributes.width -= hints.min_width;
77 		win_attributes.height -= hints.min_height;
78 	}
79 	*p_width = win_attributes.width / hints.width_inc;
80 	*p_height = win_attributes.height / hints.height_inc;
81 	return 0;
82 }
83 
main(argc,argv)84 int main(argc, argv)
85 	int argc;
86 	char *argv[];
87 {
88 	char *cp;
89 	Display *dpy;
90 	int size[2];
91 
92 	_scrsize(size);
93 	cp = getenv("WINDOWID");
94 	if (cp != NULL)
95 	{
96 		dpy = XOpenDisplay(NULL);
97 		if (dpy != NULL)
98 		{
99 			get_winsize(dpy, (Window) atol(cp), &size[0], &size[1]);
100 			XCloseDisplay(dpy);
101 		}
102 	}
103 	printf("%i %i\n", size[0], size[1]);
104 	return (0);
105 }
106