dist/nvi/motif/m_cde.c

   1 /*      $NetBSD$ */
   2
   3 /*-
   4  * Copyright (c) 1996
   5  *      Rob Zimmermann.  All rights reserved.
   6  * Copyright (c) 1996
   7  *      Keith Bostic.  All rights reserved.
   8  *
   9  * See the LICENSE file for redistribution information.
  10  */
  11
  12 #include "config.h"
  13
  14 #ifndef lint
  15 static const char sccsid[] = "Id: m_cde.c,v 8.11 2003/11/05 17:09:58 skimo Exp (Berkeley) Date: 2003/11/05 17:09:58";
  16 #endif /* not lint */
  17
  18 #include <sys/types.h>
  19 #include <sys/queue.h>
  20
  21 #include <X11/X.h>
  22 #include <X11/Xlib.h>
  23 #include <X11/Xatom.h>
  24
  25 #include <bitstring.h>
  26 #include <stdio.h>
  27
  28 #undef LOCK_SUCCESS
  29 #include "../common/common.h"
  30 #include "extern.h"
  31
  32 #if SelfTest
  33 #define _TRACE( x )     printf x
  34 #else
  35 #define _TRACE( x )
  36 #endif
  37
  38 #define Required        10
  39 #define Useful          3
  40 #define Present         (Required+Useful)
  41
  42 static struct {
  43     char        *name;
  44     int         value;
  45 } Atoms[] = {
  46     { "_VUE_SM_WINDOW_INFO",    Required,       /* "vue" */             },
  47     { "_DT_SM_WINDOW_INFO",     Required,       /* "dtwm" */            },
  48     { "_SUN_WM_PROTOCOLS",      Useful,         /* "olwm" */            },
  49     { "_MOTIF_WM_INFO",         Useful,         /* "mwm/dtwm" */        },
  50 };
  51
  52 /*
  53  * is_cde --
  54  *
  55  * When running under CDE (or VUE on HPUX) applications should not define
  56  * fallback colors (or fonts).  The only way to tell is to check the atoms
  57  * attached to the server.  This routine does that.
  58  *
  59  * PUBLIC: int is_cde __P((Display *));
  60  */
  61 int
  62 is_cde(Display *d)
  63 {
  64     int                 i, r, format;
  65     unsigned long       nitems, remaining;
  66     unsigned char       *prop;
  67     Window              root = DefaultRootWindow( d );
  68     Atom                atom, type;
  69     int                 retval = 0;
  70
  71     _TRACE( ( "Root window is 0x%x\n", root ) );
  72
  73     /* create our atoms */
  74     for (i=0; i< (sizeof(Atoms)/sizeof(Atoms[0])); i++ ) {
  75
  76         atom = XInternAtom( d, Atoms[i].name, True );
  77         if ( atom == None ) {
  78             _TRACE( ( "Atom \"%s\" does not exist\n", Atoms[i].name ) );
  79             continue;
  80         }
  81
  82         /* what is the value of the atom? */
  83         r = XGetWindowProperty( d,
  84                                 root,
  85                                 atom,
  86                                 0,
  87                                 1024,
  88                                 False,                  /* do not delete */
  89                                 AnyPropertyType,        /* request type */
  90                                 &type,                  /* actual type */
  91                                 &format,                /* byte size */
  92                                 &nitems,                /* number of items */
  93                                 &remaining,             /* anything left over? */
  94                                 &prop                   /* the data itself */
  95                                 );
  96         if ( r != Success ) {
  97             _TRACE( ( "Atom \"%s\" cannot be converted to string\n", Atoms[i].name ) );
  98             continue;
  99         }
 100
 101         retval += Atoms[i].value;
 102
 103
 104 #if SelfTest
 105         _TRACE( ( "Atom \"%s\"\n", Atoms[i].name ) );
 106
 107         switch ( type ) {
 108             case 0:
 109                 _TRACE( ( "\t does not exist on the root window\n", Atoms[i].name ) );
 110
 111             case XA_ATOM:
 112                 for (j=0; j<nitems; j++) {
 113                     name = XGetAtomName( d, ((Atom *) prop)[j] );
 114                     _TRACE( ( "\t[%d] = \"%s\"\n", j, name ) );
 115                     XFree( name );
 116                 }
 117                 break;
 118
 119             case XA_STRING:
 120                 _TRACE( ( "\t is a string\n", Atoms[i].name ) );
 121                 break;
 122
 123             default:
 124                 _TRACE( ( "\tunknown type %s\n", XGetAtomName( d, type ) ) );
 125                 break;
 126         }
 127 #endif
 128
 129         /* done */
 130         XFree( (caddr_t) prop );
 131
 132     }
 133
 134     _TRACE( ( "retval = %d\n", retval ) );
 135     return retval >= Present;
 136 }
 137
 138 #if SelfTest
 139
 140 main () {
 141     Display *d = XOpenDisplay( 0 );
 142
 143     if ( d == 0 )
 144         printf ( "Could not open display\n" );
 145     else {
 146         printf ( "_vi_is_cde() == %d\n", _vi_is_cde( d ) );
 147         XCloseDisplay( d );
 148     }
 149 }
 150 #endif