external/bsd/less/dist/scrsize.c

   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
  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
  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 }