1 /* GDK - The GIMP Drawing Kit
2 * Copyright (C) 2000 Red Hat, Inc.
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 "gdkscreen.h"
30 #include "gdkdisplay.h"
31 #include "gdkdisplaymanager.h"
33 #include "gdkinternals.h"
34 #include "gdkmarshalers.h"
40 struct _GdkDisplayManager
42 GObject parent_instance;
56 static void gdk_display_manager_class_init (GdkDisplayManagerClass *klass);
57 static void gdk_display_manager_set_property (GObject *object,
61 static void gdk_display_manager_get_property (GObject *object,
66 static guint signals[LAST_SIGNAL] = { 0 };
68 static GdkDisplay *default_display = NULL;
70 G_DEFINE_TYPE (GdkDisplayManager, gdk_display_manager, G_TYPE_OBJECT)
73 gdk_display_manager_class_init (GdkDisplayManagerClass *klass)
75 GObjectClass *object_class = G_OBJECT_CLASS (klass);
77 object_class->set_property = gdk_display_manager_set_property;
78 object_class->get_property = gdk_display_manager_get_property;
81 * GdkDisplayManager::display-opened:
82 * @display_manager: the object on which the signal is emitted
83 * @display: the opened display
85 * The ::display_opened signal is emitted when a display is opened.
89 signals[DISPLAY_OPENED] =
90 g_signal_new (g_intern_static_string ("display_opened"),
91 G_OBJECT_CLASS_TYPE (object_class),
93 G_STRUCT_OFFSET (GdkDisplayManagerClass, display_opened),
95 gdk_marshal_VOID__OBJECT,
100 g_object_class_install_property (object_class,
101 PROP_DEFAULT_DISPLAY,
102 g_param_spec_object ("default-display",
103 P_("Default Display"),
104 P_("The default display for GDK"),
106 G_PARAM_READWRITE|G_PARAM_STATIC_NAME|
107 G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB));
111 gdk_display_manager_init (GdkDisplayManager *manager)
116 gdk_display_manager_set_property (GObject *object,
123 case PROP_DEFAULT_DISPLAY:
124 gdk_display_manager_set_default_display (GDK_DISPLAY_MANAGER (object),
125 g_value_get_object (value));
128 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
134 gdk_display_manager_get_property (GObject *object,
141 case PROP_DEFAULT_DISPLAY:
142 g_value_set_object (value, default_display);
145 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
151 * gdk_display_manager_get:
152 * @returns: the singleton #GdkDisplayManager object.
154 * Returns the global #GdkDisplayManager singleton; gdk_parse_pargs(),
155 * gdk_init(), or gdk_init_check() must have been called first.
160 gdk_display_manager_get (void)
162 static GdkDisplayManager *display_manager = NULL;
164 if (!display_manager)
165 display_manager = g_object_new (GDK_TYPE_DISPLAY_MANAGER, NULL);
167 return display_manager;
171 * gdk_display_manager_get_default_display:
172 * @display_manager: a #GdkDisplayManager
174 * Gets the default #GdkDisplay.
176 * Returns: a #GdkDisplay, or %NULL if there is no default
182 gdk_display_manager_get_default_display (GdkDisplayManager *display_manager)
184 return default_display;
188 * gdk_display_get_default:
190 * Gets the default #GdkDisplay. This is a convenience
192 * <literal>gdk_display_manager_get_default_display (gdk_display_manager_get ())</literal>.
194 * Returns: a #GdkDisplay, or %NULL if there is no default
200 gdk_display_get_default (void)
202 return default_display;
206 * gdk_screen_get_default:
208 * Gets the default screen for the default display. (See
209 * gdk_display_get_default ()).
211 * Returns: a #GdkScreen, or %NULL if there is no default display.
216 gdk_screen_get_default (void)
219 return gdk_display_get_default_screen (default_display);
225 * gdk_display_manager_set_default_display:
226 * @display_manager: a #GdkDisplayManager
227 * @display: a #GdkDisplay
229 * Sets @display as the default display.
234 gdk_display_manager_set_default_display (GdkDisplayManager *display_manager,
237 default_display = display;
239 _gdk_windowing_set_default_display (display);
241 g_object_notify (G_OBJECT (display_manager), "default-display");
245 * gdk_display_manager_list_displays:
246 * @display_manager: a #GdkDisplayManager
248 * List all currently open displays.
250 * Return value: a newly allocated #GSList of #GdkDisplay objects.
251 * Free this list with g_slist_free() when you are done with it.
256 gdk_display_manager_list_displays (GdkDisplayManager *display_manager)
258 return g_slist_copy (_gdk_displays);
261 #define __GDK_DISPLAY_MANAGER_C__
262 #include "gdkaliasdef.c"