1 /* GDK - The GIMP Drawing Kit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
29 #include "gdkprivate-x11.h"
30 #include "gdkdisplay-x11.h"
34 static guint gdk_xid_hash (XID *xid);
35 static gboolean gdk_xid_equal (XID *a,
39 /* The 3 high bits of XIDs are unused. We use one to mark fonts,
40 * since we must be able to skip fonts when iterating over all XIDs.
42 #define XID_FONT_BIT (1<<31)
45 _gdk_xid_table_insert (GdkDisplay *display,
49 GdkDisplayX11 *display_x11;
51 g_return_if_fail (xid != NULL);
52 g_return_if_fail (GDK_IS_DISPLAY (display));
54 display_x11 = GDK_DISPLAY_X11 (display);
56 if (!display_x11->xid_ht)
57 display_x11->xid_ht = g_hash_table_new ((GHashFunc) gdk_xid_hash,
58 (GEqualFunc) gdk_xid_equal);
60 if (g_hash_table_lookup (display_x11->xid_ht, xid))
61 g_warning ("XID collision, trouble ahead");
63 g_hash_table_insert (display_x11->xid_ht, xid, data);
67 _gdk_xid_table_remove (GdkDisplay *display,
70 GdkDisplayX11 *display_x11;
72 g_return_if_fail (GDK_IS_DISPLAY (display));
74 display_x11 = GDK_DISPLAY_X11 (display);
76 if (display_x11->xid_ht)
77 g_hash_table_remove (display_x11->xid_ht, &xid);
81 * gdk_xid_table_lookup_for_display:
82 * @display: the #GdkDisplay.
85 * Returns the GDK object associated with the given X id.
87 * Returns: a GDK object associated with the given X id.
92 gdk_xid_table_lookup_for_display (GdkDisplay *display,
95 GdkDisplayX11 *display_x11;
98 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
100 display_x11 = GDK_DISPLAY_X11 (display);
102 if (display_x11->xid_ht)
103 data = g_hash_table_lookup (display_x11->xid_ht, &xid);
110 * gdk_xid_table_lookup:
113 * Returns the Gdk object associated with the given X id.
115 * Return value: the associated Gdk object, which may be a #GdkPixmap,
116 * a #GdkWindow or a #GdkFont.
119 gdk_xid_table_lookup (XID xid)
121 return gdk_xid_table_lookup_for_display (gdk_display_get_default (), xid);
125 gdk_xid_hash (XID *xid)
131 gdk_xid_equal (XID *a,
134 return ((*a & ~XID_FONT_BIT) == (*b & ~XID_FONT_BIT));
137 #define __GDK_XID_C__
138 #include "gdkaliasdef.c"