自学教程：C++ IBUS_OBJECT_CLASS函数代码示例

static voidbus_dbus_impl_class_init (BusDBusImplClass *klass){    GObjectClass *gobject_class = G_OBJECT_CLASS (klass);    IBusServiceClass *service_class = IBUS_SERVICE_CLASS (klass);    parent_class = (IBusServiceClass *) g_type_class_peek_parent (klass);    IBUS_OBJECT_CLASS (gobject_class)->destroy = (IBusObjectDestroyFunc) bus_dbus_impl_destroy;    service_class->ibus_message = (ServiceIBusMessageFunc) bus_dbus_impl_ibus_message;    klass->name_owner_changed = bus_dbus_impl_name_owner_changed;    /* install signals */    dbus_signals[NAME_OWNER_CHANGED] =        g_signal_new (I_("name-owner-changed"),            G_TYPE_FROM_CLASS (klass),            G_SIGNAL_RUN_FIRST,            G_STRUCT_OFFSET (BusDBusImplClass, name_owner_changed),            NULL, NULL,            ibus_marshal_VOID__STRING_STRING_STRING,            G_TYPE_NONE,            3,            G_TYPE_STRING,            G_TYPE_STRING,            G_TYPE_STRING);}

static voidibus_config_service_class_init (IBusConfigServiceClass *klass){    GObjectClass *gobject_class = G_OBJECT_CLASS (klass);    parent_class = (IBusServiceClass *) g_type_class_peek_parent (klass);    gobject_class->set_property = (GObjectSetPropertyFunc) ibus_config_service_set_property;    gobject_class->get_property = (GObjectGetPropertyFunc) ibus_config_service_get_property;    IBUS_OBJECT_CLASS (gobject_class)->destroy = (IBusObjectDestroyFunc) ibus_config_service_destroy;    IBUS_SERVICE_CLASS (klass)->ibus_message = (ServiceIBusMessageFunc) ibus_config_service_ibus_message;    klass->set_value = ibus_config_service_set_value;    klass->get_value = ibus_config_service_get_value;    /* install properties */    /**     * IBusConfigService:connection:     *     * Connection of this IBusConfigService.     */    g_object_class_install_property (gobject_class,                    PROP_CONNECTION,                    g_param_spec_object ("connection",                        "connection",                        "The connection of config object",                        IBUS_TYPE_CONNECTION,                        G_PARAM_READWRITE |  G_PARAM_CONSTRUCT_ONLY));}

static voidibus_property_destroy (IBusProperty *prop){    g_free (prop->key);    prop->key = NULL;    g_free (prop->icon);    prop->icon = NULL;    if (prop->label) {        g_object_unref (prop->label);        prop->label = NULL;    }    if (prop->tooltip) {        g_object_unref (prop->tooltip);        prop->tooltip = NULL;    }    if (prop->sub_props) {        g_object_unref (prop->sub_props);        prop->sub_props = NULL;    }    IBUS_OBJECT_CLASS (ibus_property_parent_class)->destroy ((IBusObject *)prop);}

static voidibus_keymap_class_init (IBusKeymapClass *klass){    IBusObjectClass *object_class = IBUS_OBJECT_CLASS (klass);    object_class->destroy = (IBusObjectDestroyFunc) ibus_keymap_destroy;}

static voidbus_engine_proxy_real_destroy (BusEngineProxy *engine){    if (engine->prop_list) {        g_object_unref (engine->prop_list);        engine->prop_list = NULL;    }    if (ibus_proxy_get_connection ((IBusProxy *) engine)) {        ibus_proxy_call ((IBusProxy *) engine,                         "Destroy",                         G_TYPE_INVALID);    }    if (engine->desc) {        g_object_unref (engine->desc);        engine->desc = NULL;    }    if (engine->keymap) {        g_object_unref (engine->keymap);        engine->keymap = NULL;    }    IBUS_OBJECT_CLASS(parent_class)->destroy (IBUS_OBJECT (engine));}

static voidibus_connection_destroy (IBusConnection *connection){    IBusConnectionPrivate *priv;    priv = IBUS_CONNECTION_GET_PRIVATE (connection);    if (priv->connection) {        dbus_connection_remove_filter (priv->connection,                    (DBusHandleMessageFunction) _connection_handle_message_cb,                    connection);    }    do {        if (!priv->shared && priv->connection) {            dbus_connection_close (priv->connection);            dbus_connection_unref (priv->connection);            priv->connection = NULL;            break;        }        if (priv->shared && priv->connection) {            g_warn_if_fail (_connections != NULL);            if (_connections != NULL) {                g_hash_table_remove (_connections, priv->connection);            }            dbus_connection_unref (priv->connection);            priv->connection = NULL;            break;        }    } while (0);    IBUS_OBJECT_CLASS (ibus_connection_parent_class)->destroy (IBUS_OBJECT (connection));}

static voidibus_m17n_engine_destroy (IBusM17NEngine *m17n){    if (m17n->prop_list) {        g_object_unref (m17n->prop_list);        m17n->prop_list = NULL;    }    if (m17n->status_prop) {        g_object_unref (m17n->status_prop);        m17n->status_prop = NULL;    }#if HAVE_SETUP    if (m17n->setup_prop) {        g_object_unref (m17n->setup_prop);        m17n->setup_prop = NULL;    }#endif  /* HAVE_SETUP */    if (m17n->table) {        g_object_unref (m17n->table);        m17n->table = NULL;    }    if (m17n->context) {        minput_destroy_ic (m17n->context);        m17n->context = NULL;    }    IBUS_OBJECT_CLASS (parent_class)->destroy ((IBusObject *)m17n);}

static voidibus_factory_class_init (IBusFactoryClass *klass){    GObjectClass *gobject_class = G_OBJECT_CLASS (klass);    IBusObjectClass *ibus_object_class = IBUS_OBJECT_CLASS (klass);    g_type_class_add_private (klass, sizeof (IBusFactoryPrivate));    gobject_class->set_property = (GObjectSetPropertyFunc) ibus_factory_set_property;    gobject_class->get_property = (GObjectGetPropertyFunc) ibus_factory_get_property;    ibus_object_class->destroy = (IBusObjectDestroyFunc) ibus_factory_destroy;    IBUS_SERVICE_CLASS (klass)->ibus_message = (ServiceIBusMessageFunc) ibus_factory_ibus_message;    /**     * IBusFactory:connection:     *     * Connection of this IBusFactory.     **/    g_object_class_install_property (gobject_class,                PROP_CONNECTION,                g_param_spec_object ("connection",                "connection",                "The connection of factory object",                IBUS_TYPE_CONNECTION,                G_PARAM_READWRITE |  G_PARAM_CONSTRUCT_ONLY));}

static void ibus_handwrite_engine_class_init(IBusHandwriteEngineClass *klass){	//init global class data	IBusObjectClass *ibus_object_class = IBUS_OBJECT_CLASS (klass);	IBusEngineClass *engine_class = IBUS_ENGINE_CLASS (klass);//	parent_class = (IBusEngineClass *) g_type_class_peek_parent(klass);	ibus_object_class->destroy			= (IBusObjectDestroyFunc) ibus_handwrite_engine_destroy;	engine_class->process_key_event = ibus_handwrite_engine_process_key_event;	engine_class->disable			= (ibus_engine_callback) ibus_handwrite_engine_disable;	engine_class->enable = (ibus_engine_callback) ibus_handwrite_engine_enable;	engine_class->focus_in			= (ibus_engine_callback) ibus_handwrite_engine_focus_in;	engine_class->focus_out			= (ibus_engine_callback) ibus_handwrite_engine_focus_out;	engine_class->reset = (ibus_engine_callback) ibus_handwrite_engine_reset;	engine_class->property_activate = ibus_handwrite_property_activate;	klass->commit_text = ibus_handwrite_engine_commit_text;}

// initialize the meta class objectvoidibus_sunpinyin_engine_class_init (IBusSunPinyinEngineClass *klass){    IBusObjectClass *ibus_object_class = IBUS_OBJECT_CLASS (klass);    IBusEngineClass *engine_class = IBUS_ENGINE_CLASS (klass);        parent_class = (IBusEngineClass *) g_type_class_peek_parent (klass);        ibus_object_class->destroy = (IBusObjectDestroyFunc) ibus_sunpinyin_engine_destroy;        engine_class->process_key_event = ibus_sunpinyin_engine_process_key_event;    engine_class->focus_in          = ibus_sunpinyin_engine_focus_in;    engine_class->focus_out         = ibus_sunpinyin_engine_focus_out;    engine_class->reset             = ibus_sunpinyin_engine_reset;    engine_class->enable            = ibus_sunpinyin_engine_enable;    engine_class->disable           = ibus_sunpinyin_engine_disable;    engine_class->focus_in          = ibus_sunpinyin_engine_focus_in;    engine_class->focus_out         = ibus_sunpinyin_engine_focus_out;    engine_class->page_up           = ibus_sunpinyin_engine_page_up;    engine_class->page_down         = ibus_sunpinyin_engine_page_down;    engine_class->cursor_up         = ibus_sunpinyin_engine_cursor_up;    engine_class->cursor_down       = ibus_sunpinyin_engine_cursor_down;    engine_class->property_activate = ibus_sunpinyin_engine_property_activate;    engine_class->candidate_clicked = ibus_sunpinyin_engine_candidate_clicked;}

static voidbus_registry_destroy (BusRegistry *registry){#ifdef G_THREADS_ENABLED    if (registry->thread) {        g_mutex_lock (registry->mutex);        registry->thread_running = FALSE;        g_mutex_unlock (registry->mutex);        g_cond_signal (registry->cond);        g_thread_join (registry->thread);        registry->thread = NULL;    }#endif    bus_registry_remove_all (registry);    g_hash_table_destroy (registry->engine_table);    registry->engine_table = NULL;#ifdef G_THREADS_ENABLED    g_cond_free (registry->cond);    registry->cond = NULL;    g_mutex_free (registry->mutex);    registry->mutex = NULL;#endif    IBUS_OBJECT_CLASS (bus_registry_parent_class)->destroy (IBUS_OBJECT (registry));}

static voidibus_hotkey_profile_destroy (IBusHotkeyProfile *profile){    IBusHotkeyProfilePrivate *priv;    priv = IBUS_HOTKEY_PROFILE_GET_PRIVATE (profile);    /* free events */    if (priv->events) {        IBusHotkeyEvent *p;        gint i;        p = (IBusHotkeyEvent *)g_array_free (priv->events, FALSE);        priv->events = NULL;        for (i = 0; p[i].event != 0; i++) {            g_list_free (p[i].hotkeys);        }        g_free (p);    }    if (priv->hotkeys) {        g_tree_destroy (priv->hotkeys);        priv->hotkeys = NULL;    }    IBUS_OBJECT_CLASS (parent_class)->destroy ((IBusObject *)profile);}

static voidibus_hangul_engine_destroy (IBusHangulEngine *hangul){    if (hangul->prop_hanja_mode) {        g_object_unref (hangul->prop_hanja_mode);        hangul->prop_hanja_mode = NULL;    }    if (hangul->prop_list) {        g_object_unref (hangul->prop_list);        hangul->prop_list = NULL;    }    if (hangul->table) {        g_object_unref (hangul->table);        hangul->table = NULL;    }    if (hangul->context) {        hangul_ic_delete (hangul->context);        hangul->context = NULL;    }    IBUS_OBJECT_CLASS (parent_class)->destroy ((IBusObject *)hangul);}

static voidibus_factory_destroy (IBusFactory *factory){    GList *list;    IBusFactoryPrivate *priv;    priv = IBUS_FACTORY_GET_PRIVATE (factory);    list = g_list_copy (priv->engine_list);    g_list_foreach (list, (GFunc) ibus_object_destroy, NULL);    g_list_free (priv->engine_list);    g_list_free (list);    priv->engine_list = NULL;    if (priv->engine_table) {        g_hash_table_destroy (priv->engine_table);    }    if (priv->connection) {        ibus_service_remove_from_connection ((IBusService *)factory,                                             priv->connection);        g_object_unref (priv->connection);    }    IBUS_OBJECT_CLASS(factory_parent_class)->destroy (IBUS_OBJECT (factory));}

static voidibus_bus_destroy (IBusObject *object){    IBusBus *bus;    IBusBusPrivate *priv;    bus = IBUS_BUS (object);    priv = IBUS_BUS_GET_PRIVATE (bus);    if (priv->monitor) {        g_object_unref (priv->monitor);        priv->monitor = NULL;    }    if (priv->config) {        ibus_object_destroy ((IBusObject *) priv->config);        priv->config = NULL;    }    if (priv->connection) {        ibus_object_destroy ((IBusObject *) priv->connection);        priv->connection = NULL;    }    IBUS_OBJECT_CLASS (ibus_bus_parent_class)->destroy (object);}

static voidibus_config_class_init (IBusConfigClass *klass){    IBusObjectClass *ibus_object_class = IBUS_OBJECT_CLASS (klass);    IBusProxyClass *proxy_class = IBUS_PROXY_CLASS (klass);    parent_class = (IBusProxyClass *) g_type_class_peek_parent (klass);    g_type_class_add_private (klass, sizeof (IBusConfigPrivate));    ibus_object_class->destroy = (IBusObjectDestroyFunc) ibus_config_real_destroy;    proxy_class->ibus_signal = ibus_config_ibus_signal;    /* install signals */    /**     * IBusConfig:value-changed:     *     * Emitted when configuration value is changed.     */    config_signals[VALUE_CHANGED] =        g_signal_new (I_("value-changed"),            G_TYPE_FROM_CLASS (klass),            G_SIGNAL_RUN_LAST,            0,            NULL, NULL,            ibus_marshal_VOID__STRING_STRING_BOXED,            G_TYPE_NONE,            3,            G_TYPE_STRING,            G_TYPE_STRING,            G_TYPE_VALUE | G_SIGNAL_TYPE_STATIC_SCOPE);}

voidibus_sunpinyin_engine_destroy(IBusEngine *py_engine){        delete GET_PY_ENGINE(py_engine);    GET_PY_ENGINE(py_engine) = NULL;    IBUS_OBJECT_CLASS (parent_class)->destroy( IBUS_OBJECT(py_engine));}

static voidibus_keymap_destroy (IBusKeymap *keymap){    if (keymap->name != NULL) {        g_free (keymap->name);        keymap->name = NULL;    }    IBUS_OBJECT_CLASS (ibus_keymap_parent_class)->destroy ((IBusObject *)keymap);}

static voidbus_factory_proxy_class_init (BusFactoryProxyClass *klass){    IBusObjectClass *ibus_object_class = IBUS_OBJECT_CLASS (klass);    parent_class = (IBusProxyClass *) g_type_class_peek_parent (klass);    ibus_object_class->destroy = (IBusObjectDestroyFunc) bus_factory_proxy_destroy;}

static voidibus_config_gconf_destroy (IBusConfigGConf *config){    if (config->client) {        g_object_unref (config->client);        config->client = NULL;    }	IBUS_OBJECT_CLASS (parent_class)->destroy ((IBusObject *)config);}

static voidbus_server_class_init (BusServerClass *klass){    IBusObjectClass *ibus_object_class = IBUS_OBJECT_CLASS (klass);    ibus_object_class->destroy = (IBusObjectDestroyFunc) bus_server_destroy;    IBUS_SERVER_CLASS (klass)->new_connection =        (IBusNewConnectionFunc) bus_server_new_connection;}

static voidibus_service_class_init (IBusServiceClass *klass){    GObjectClass *gobject_class = G_OBJECT_CLASS (klass);    IBusObjectClass *ibus_object_class = IBUS_OBJECT_CLASS (klass);    parent_class = (IBusObjectClass *) g_type_class_peek_parent (klass);    g_type_class_add_private (klass, sizeof (IBusServicePrivate));    gobject_class->set_property = (GObjectSetPropertyFunc) ibus_service_set_property;    gobject_class->get_property = (GObjectGetPropertyFunc) ibus_service_get_property;    ibus_object_class->destroy = (IBusObjectDestroyFunc) ibus_service_destroy;    klass->ibus_message = ibus_service_ibus_message;    klass->ibus_signal = ibus_service_ibus_signal;    /* install properties */    g_object_class_install_property (        gobject_class,        PROP_PATH,        g_param_spec_string (            "path",            "object path",            "The path of service object",            NULL,            G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)    );    /* Install signals */    service_signals[IBUS_MESSAGE] =        g_signal_new (I_("ibus-message"),                      G_TYPE_FROM_CLASS (klass),                      G_SIGNAL_RUN_LAST,                      G_STRUCT_OFFSET (IBusServiceClass, ibus_message),                      NULL, NULL,                      ibus_marshal_BOOLEAN__POINTER_POINTER,                      G_TYPE_BOOLEAN,                      2,                      G_TYPE_POINTER,                      G_TYPE_POINTER);    service_signals[IBUS_SIGNAL] =        g_signal_new (I_("ibus-signal"),                      G_TYPE_FROM_CLASS (klass),                      G_SIGNAL_RUN_LAST,                      G_STRUCT_OFFSET (IBusServiceClass, ibus_signal),                      NULL, NULL,                      ibus_marshal_BOOLEAN__POINTER_POINTER,                      G_TYPE_BOOLEAN,                      2,                      G_TYPE_POINTER,                      G_TYPE_POINTER);}

static voidibus_config_real_destroy (IBusConfig *config){    if (ibus_proxy_get_connection ((IBusProxy *) config) != NULL) {        ibus_proxy_call ((IBusProxy *) config,                         "Destroy",                         G_TYPE_INVALID);    }    IBUS_OBJECT_CLASS(parent_class)->destroy (IBUS_OBJECT (config));}

static voidibus_config_gconf_class_init (IBusConfigGConfClass *klass){    GObjectClass *object_class = G_OBJECT_CLASS (klass);    parent_class = (IBusConfigServiceClass *) g_type_class_peek_parent (klass);	IBUS_OBJECT_CLASS (object_class)->destroy = (IBusObjectDestroyFunc) ibus_config_gconf_destroy;    IBUS_CONFIG_SERVICE_CLASS (object_class)->set_value = ibus_config_gconf_set_value;    IBUS_CONFIG_SERVICE_CLASS (object_class)->get_value = ibus_config_gconf_get_value;}

static voidibus_server_class_init (IBusServerClass *klass){    GObjectClass *gobject_class = G_OBJECT_CLASS (klass);    IBusObjectClass *ibus_object_class = IBUS_OBJECT_CLASS (klass);    g_type_class_add_private (klass, sizeof (IBusServerPrivate));    gobject_class->set_property = (GObjectSetPropertyFunc) ibus_server_set_property;    gobject_class->get_property = (GObjectGetPropertyFunc) ibus_server_get_property;    ibus_object_class->destroy = (IBusObjectDestroyFunc) ibus_server_destroy;    klass->new_connection = ibus_server_new_connection;    /* install properties */    /**     * IBusServer:connection-type:     *     * The connection type of server object.     */    g_object_class_install_property (gobject_class,                    PROP_CONNECTION_TYPE,                    g_param_spec_gtype ("connection-type",                        "connection type",                        "The connection type of server object",                        IBUS_TYPE_CONNECTION,                        G_PARAM_READWRITE));    /* install signals */    /**     * IBusServer::new-connection:     * @server: An IBusServer.     * @connection: The corresponding IBusConnection.     *     * Emitted when a new connection is coming in.     * In this handler, IBus could add a reference and continue processing the connection.     * If no reference is added, the new connection will be released and closed after this signal.     *     * <note><para>Argument @user_data is ignored in this function.</para></note>     *     * See also: IBusNewConnectionFunc().     */    server_signals[NEW_CONNECTION] =        g_signal_new (I_("new-connection"),            G_TYPE_FROM_CLASS (klass),            G_SIGNAL_RUN_LAST,            G_STRUCT_OFFSET (IBusServerClass, new_connection),            NULL, NULL,            ibus_marshal_VOID__OBJECT,            G_TYPE_NONE, 1,            G_TYPE_OBJECT);}

static voidibus_panel_service_class_init (IBusPanelServiceClass *klass){    GObjectClass *gobject_class = G_OBJECT_CLASS (klass);    gobject_class->set_property = (GObjectSetPropertyFunc) ibus_panel_service_service_set_property;    gobject_class->get_property = (GObjectGetPropertyFunc) ibus_panel_service_service_get_property;    IBUS_OBJECT_CLASS (gobject_class)->destroy = (IBusObjectDestroyFunc) ibus_panel_service_real_destroy;    IBUS_SERVICE_CLASS (klass)->ibus_message = (ServiceIBusMessageFunc) ibus_panel_service_ibus_message;    klass->focus_in              = ibus_panel_service_focus_in;    klass->focus_out             = ibus_panel_service_focus_out;    klass->register_properties   = ibus_panel_service_register_properties;    klass->set_cursor_location   = ibus_panel_service_set_cursor_location;    klass->update_lookup_table   = ibus_panel_service_update_lookup_table;    klass->update_auxiliary_text = ibus_panel_service_update_auxiliary_text;    klass->update_preedit_text   = ibus_panel_service_update_preedit_text;    klass->update_property       = ibus_panel_service_update_property;    klass->cursor_down_lookup_table = ibus_panel_service_not_implemented;    klass->cursor_up_lookup_table   = ibus_panel_service_not_implemented;    klass->destroy                  = ibus_panel_service_not_implemented;    klass->hide_auxiliary_text      = ibus_panel_service_not_implemented;    klass->hide_language_bar        = ibus_panel_service_not_implemented;    klass->hide_lookup_table        = ibus_panel_service_not_implemented;    klass->hide_preedit_text        = ibus_panel_service_not_implemented;    klass->page_down_lookup_table   = ibus_panel_service_not_implemented;    klass->page_up_lookup_table     = ibus_panel_service_not_implemented;    klass->reset                    = ibus_panel_service_not_implemented;    klass->show_auxiliary_text      = ibus_panel_service_not_implemented;    klass->show_language_bar        = ibus_panel_service_not_implemented;    klass->show_lookup_table        = ibus_panel_service_not_implemented;    klass->show_preedit_text        = ibus_panel_service_not_implemented;    klass->start_setup              = ibus_panel_service_not_implemented;    klass->state_changed            = ibus_panel_service_not_implemented;    /* install properties */    /**     * IBusPanelService:connection:     *     * Connection of this IBusPanelService.     */    g_object_class_install_property (gobject_class,                                     PROP_CONNECTION,                                     g_param_spec_object ("connection",                                                          "connection",                                                          "The connection of service object",                                                          IBUS_TYPE_CONNECTION,                                                          G_PARAM_READWRITE |  G_PARAM_CONSTRUCT_ONLY));}

static voidibus_server_destroy (IBusServer *server){    IBusServerPrivate *priv;    priv = IBUS_SERVER_GET_PRIVATE (server);    if (priv->server) {        dbus_server_unref (priv->server);        priv->server = NULL;    }    IBUS_OBJECT_CLASS(ibus_server_parent_class)->destroy (IBUS_OBJECT (server));}