1 /* GDK - The GIMP Drawing Kit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
3 *
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.
8 *
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.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18 /*
19 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
20 * file for a list of people on the GTK+ Team. See the ChangeLog
21 * files for a list of changes. These files are distributed with
22 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
23 */
24
25 #include "config.h"
26
27 #include "gdkprivate-x11.h"
28 #include "gdkdisplay-x11.h"
29
30 #include <stdio.h>
31
32 static guint
gdk_xid_hash(XID * xid)33 gdk_xid_hash (XID *xid)
34 {
35 return *xid;
36 }
37
38 static gboolean
gdk_xid_equal(XID * a,XID * b)39 gdk_xid_equal (XID *a, XID *b)
40 {
41 return (*a == *b);
42 }
43
44 void
_gdk_x11_display_add_window(GdkDisplay * display,XID * xid,GdkWindow * data)45 _gdk_x11_display_add_window (GdkDisplay *display,
46 XID *xid,
47 GdkWindow *data)
48 {
49 GdkX11Display *display_x11;
50
51 g_return_if_fail (xid != NULL);
52 g_return_if_fail (GDK_IS_DISPLAY (display));
53
54 display_x11 = GDK_X11_DISPLAY (display);
55
56 if (!display_x11->xid_ht)
57 display_x11->xid_ht = g_hash_table_new ((GHashFunc) gdk_xid_hash,
58 (GEqualFunc) gdk_xid_equal);
59
60 if (g_hash_table_lookup (display_x11->xid_ht, xid))
61 g_warning ("XID collision, trouble ahead");
62
63 g_hash_table_insert (display_x11->xid_ht, xid, data);
64 }
65
66 void
_gdk_x11_display_remove_window(GdkDisplay * display,XID xid)67 _gdk_x11_display_remove_window (GdkDisplay *display,
68 XID xid)
69 {
70 GdkX11Display *display_x11;
71
72 g_return_if_fail (GDK_IS_DISPLAY (display));
73
74 display_x11 = GDK_X11_DISPLAY (display);
75
76 if (display_x11->xid_ht)
77 g_hash_table_remove (display_x11->xid_ht, &xid);
78 }
79
80 /**
81 * gdk_x11_window_lookup_for_display:
82 * @display: (type GdkX11Display): the #GdkDisplay corresponding to the
83 * window handle
84 * @window: an Xlib Window
85 *
86 * Looks up the #GdkWindow that wraps the given native window handle.
87 *
88 * Returns: (transfer none) (type GdkX11Window): the #GdkWindow wrapper for the native
89 * window, or %NULL if there is none.
90 *
91 * Since: 2.24
92 */
93 GdkWindow *
gdk_x11_window_lookup_for_display(GdkDisplay * display,Window window)94 gdk_x11_window_lookup_for_display (GdkDisplay *display,
95 Window window)
96 {
97 GdkX11Display *display_x11;
98 GdkWindow *data = NULL;
99
100 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
101
102 display_x11 = GDK_X11_DISPLAY (display);
103
104 if (display_x11->xid_ht)
105 data = g_hash_table_lookup (display_x11->xid_ht, &window);
106
107 return data;
108 }
109