/* GDK - The GIMP Drawing Kit * Copyright (C) 2000 Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include #include "gdkdisplay.h" #include "gdkdisplaymanager.h" #include "gdkinternals.h" #include "gdkmarshalers.h" #include "gdkintl.h" struct _GdkDisplayManager { GObject parent_instance; }; enum { PROP_0, PROP_DEFAULT_DISPLAY }; enum { DISPLAY_OPENED, LAST_SIGNAL }; static void gdk_display_manager_class_init (GdkDisplayManagerClass *klass); static void gdk_display_manager_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void gdk_display_manager_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); static guint signals[LAST_SIGNAL] = { 0 }; static GdkDisplay *default_display = NULL; GType gdk_display_manager_get_type (void) { static GType object_type = 0; if (!object_type) { static const GTypeInfo object_info = { sizeof (GdkDisplayManagerClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) gdk_display_manager_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (GdkDisplayManager), 0, /* n_preallocs */ (GInstanceInitFunc) NULL, }; object_type = g_type_register_static (G_TYPE_OBJECT, "GdkDisplayManager", &object_info, 0); } return object_type; } static void gdk_display_manager_class_init (GdkDisplayManagerClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); object_class->set_property = gdk_display_manager_set_property; object_class->get_property = gdk_display_manager_get_property; /** * GdkDisplayManager::display-opened: * @display_manager: the object on which the signal is emitted * @display: the opened display * * The ::display_opened signal is emitted when a display is opened. * * Since: 2.2 */ signals[DISPLAY_OPENED] = g_signal_new ("display_opened", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GdkDisplayManagerClass, display_opened), NULL, NULL, gdk_marshal_VOID__OBJECT, G_TYPE_NONE, 1, GDK_TYPE_DISPLAY); g_object_class_install_property (object_class, PROP_DEFAULT_DISPLAY, g_param_spec_object ("default-display", _("Default Display"), _("The default display for GDK"), GDK_TYPE_DISPLAY, G_PARAM_READWRITE)); } static void gdk_display_manager_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { switch (prop_id) { case PROP_DEFAULT_DISPLAY: default_display = g_value_get_object (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gdk_display_manager_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { switch (prop_id) { case PROP_DEFAULT_DISPLAY: g_value_set_object (value, default_display); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } /** * gdk_display_manager_get: * @returns: the singleton #GdkDisplayManager object. * * Returns the global #GdkDisplayManager singleton; gdk_parse_pargs(), * gdk_init(), or gdk_init_check() must have been called first. * * Since: 2.2 **/ GdkDisplayManager* gdk_display_manager_get (void) { static GdkDisplayManager *display_manager = NULL; if (!display_manager) display_manager = g_object_new (GDK_TYPE_DISPLAY_MANAGER, NULL); return display_manager; } /** * gdk_display_manager_get_default_display: * @display_manager: a #GdkDisplayManager * * Gets the default #GdkDisplay. * * Returns: a #GdkDisplay, or %NULL if there is no default * display. * * Since: 2.2 */ GdkDisplay * gdk_display_manager_get_default_display (GdkDisplayManager *display_manager) { return default_display; } /** * gdk_display_get_default: * * Gets the default #GdkDisplay. This is a convenience * function for: * * gdk_display_manager_get_default_display (gdk_display_manager_get ()) * * * Returns: a #GdkDisplay, or %NULL if there is no default * display. * * Since: 2.2 */ GdkDisplay * gdk_display_get_default (void) { return default_display; } /** * gdk_screen_get_default: * * Gets the default screen for the default display. (See * gdk_display_get_default ()). * * Returns: a #GdkScreen, or %NULL if there is no default display. * * Since: 2.2 */ GdkScreen * gdk_screen_get_default (void) { if (default_display) return gdk_display_get_default_screen (default_display); else return NULL; } /** * gdk_display_manager_set_default_display: * @display_manager: a #GdkDisplayManager * @display: a #GdkDisplay * * Sets @display as the default display. * * Since: 2.2 **/ void gdk_display_manager_set_default_display (GdkDisplayManager *display_manager, GdkDisplay *display) { default_display = display; _gdk_windowing_set_default_display (display); g_object_notify (G_OBJECT (display_manager), "default_display"); } /** * gdk_display_manager_list_displays: * @display_manager: a #GdkDisplayManager * * List all currently open displays. * * Return value: a newly allocated #GSList of #GdkDisplay objects. * Free this list with g_slist_free() when you are done with it. * * Since: 2.2 **/ GSList * gdk_display_manager_list_displays (GdkDisplayManager *display_manager) { return g_slist_copy (_gdk_displays); }