xref: /freebsd/contrib/less/scrsize.c (revision 5861f9665471e98e544f6fa3ce73c4912229ff82)
1 /*
2  * Copyright (C) 1984-2008  Mark Nudelman
3  *
4  * You may distribute under the terms of either the GNU General Public
5  * License or the Less License, as specified in the README file.
6  *
7  * For more information about less, or for information on how to
8  * contact the author, see the README file.
9  */
10 
11 /*
12  * This program is used to determine the screen dimensions on OS/2 systems.
13  * Adapted from code written by Kyosuke Tokoro (NBG01720@nifty.ne.jp).
14  */
15 
16 /*
17  * When I wrote this routine, I consulted some part of the source code
18  * of the xwininfo utility by X Consortium.
19  *
20  * Copyright (c) 1987, X Consortium
21  *
22  * Permission is hereby granted, free of charge, to any person obtaining a copy
23  * of this software and associated documentation files (the "Software"), to
24  * deal in the Software without restriction, including without limitation the
25  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
26  * sell copies of the Software, and to permit persons to whom the Software is
27  * furnished to do so, subject to the following conditions:
28  *
29  * The above copyright notice and this permission notice shall be included in
30  * all copies or substantial portions of the Software.
31  *
32  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
33  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
34  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
35  * X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
36  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
37  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38  *
39  * Except as contained in this notice, the name of the X Consortium shall not
40  * be used in advertising or otherwise to promote the sale, use or other
41  * dealings in this Software without prior written authorization from the X
42  * Consortium.
43  */
44 #include <X11/Xlib.h>
45 #include <X11/Xutil.h>
46 #include <stdlib.h>
47 #include <stdio.h>
48 
49 static int get_winsize(dpy, window, p_width, p_height)
50 	Display *dpy;
51 	Window window;
52 	int *p_width;
53 	int *p_height;
54 {
55 	XWindowAttributes win_attributes;
56 	XSizeHints hints;
57 	long longjunk;
58 
59 	if (!XGetWindowAttributes(dpy, window, &win_attributes))
60 		return 1;
61 	if (!XGetWMNormalHints(dpy, window, &hints, &longjunk))
62 		return 1;
63 	if (!(hints.flags & PResizeInc))
64 		return 1;
65 	if (hints.width_inc == 0 || hints.height_inc == 0)
66 		return 1;
67 	if (!(hints.flags & (PBaseSize|PMinSize)))
68 		return 1;
69 	if (hints.flags & PBaseSize)
70 	{
71 		win_attributes.width -= hints.base_width;
72 		win_attributes.height -= hints.base_height;
73 	} else
74 	{
75 		win_attributes.width -= hints.min_width;
76 		win_attributes.height -= hints.min_height;
77 	}
78 	*p_width = win_attributes.width / hints.width_inc;
79 	*p_height = win_attributes.height / hints.height_inc;
80 	return 0;
81 }
82 
83 int main(argc, argv)
84 	int argc;
85 	char *argv[];
86 {
87 	char *cp;
88 	Display *dpy;
89 	int size[2];
90 
91 	_scrsize(size);
92 	cp = getenv("WINDOWID");
93 	if (cp != NULL)
94 	{
95 		dpy = XOpenDisplay(NULL);
96 		if (dpy != NULL)
97 		{
98 			get_winsize(dpy, (Window) atol(cp), &size[0], &size[1]);
99 			XCloseDisplay(dpy);
100 		}
101 	}
102 	printf("%i %i\n", size[0], size[1]);
103 	return (0);
104 }
105