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 |
33 | gdk_xid_hash (XID *xid) |
34 | { |
35 | return *xid; |
36 | } |
37 | |
38 | static gboolean |
39 | gdk_xid_equal (XID *a, XID *b) |
40 | { |
41 | return (*a == *b); |
42 | } |
43 | |
44 | void |
45 | _gdk_x11_display_add_window (GdkDisplay *display, |
46 | XID *xid, |
47 | GdkSurface *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 (hash_func: (GHashFunc) gdk_xid_hash, |
58 | key_equal_func: (GEqualFunc) gdk_xid_equal); |
59 | |
60 | if (g_hash_table_lookup (hash_table: display_x11->xid_ht, key: xid)) |
61 | g_warning ("XID collision, trouble ahead" ); |
62 | |
63 | g_hash_table_insert (hash_table: display_x11->xid_ht, key: xid, value: data); |
64 | |
65 | display_x11->toplevels = g_list_prepend (list: display_x11->toplevels, data); |
66 | } |
67 | |
68 | void |
69 | _gdk_x11_display_remove_window (GdkDisplay *display, |
70 | XID xid) |
71 | { |
72 | GdkX11Display *display_x11; |
73 | GdkSurface *surface; |
74 | |
75 | g_return_if_fail (GDK_IS_DISPLAY (display)); |
76 | |
77 | display_x11 = GDK_X11_DISPLAY (display); |
78 | |
79 | if (!display_x11->xid_ht) |
80 | return; |
81 | |
82 | surface = g_hash_table_lookup (hash_table: display_x11->xid_ht, key: &xid); |
83 | if (surface) |
84 | display_x11->toplevels = g_list_remove (list: display_x11->toplevels, data: surface); |
85 | |
86 | g_hash_table_remove (hash_table: display_x11->xid_ht, key: &xid); |
87 | } |
88 | |
89 | /** |
90 | * gdk_x11_surface_lookup_for_display: |
91 | * @display: (type GdkX11Display): the `GdkDisplay` corresponding to the |
92 | * window handle |
93 | * @window: an Xlib Window |
94 | * |
95 | * Looks up the `GdkSurface` that wraps the given native window handle. |
96 | * |
97 | * Returns: (transfer none) (type GdkX11Surface): the `GdkSurface` wrapper |
98 | * for the native window |
99 | */ |
100 | GdkSurface * |
101 | gdk_x11_surface_lookup_for_display (GdkDisplay *display, |
102 | Window window) |
103 | { |
104 | GdkX11Display *display_x11; |
105 | GdkSurface *data = NULL; |
106 | |
107 | g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL); |
108 | |
109 | display_x11 = GDK_X11_DISPLAY (display); |
110 | |
111 | if (display_x11->xid_ht) |
112 | data = g_hash_table_lookup (hash_table: display_x11->xid_ht, key: &window); |
113 | |
114 | return data; |
115 | } |
116 | |