C++ G_VALUE_HOLDS_BOOLEAN函数代码示例

static void
_metadata_set_property (GObject *object, guint property_id,
        const GValue *value, GParamSpec *pspec)
{
	MidgardMetadata *self = (MidgardMetadata *) object;
	
	switch (property_id) {
		
		case MIDGARD_METADATA_AUTHORS:
			g_free (self->priv->authors);
			self->priv->authors = g_value_dup_string (value);
			break;
			
		case MIDGARD_METADATA_OWNER:
			g_free (self->priv->owner);
			self->priv->owner = g_value_dup_string (value);
			break;

		case MIDGARD_METADATA_SCHEDULE_START:
			g_free (self->priv->schedule_start);
			self->priv->schedule_start = g_value_dup_boxed (value);
			break;
		
		case MIDGARD_METADATA_SCHEDULE_END:
			g_free (self->priv->schedule_end);
			self->priv->schedule_end = g_value_dup_boxed (value);
			break;
		
		case MIDGARD_METADATA_HIDDEN:
			if (G_VALUE_HOLDS_BOOLEAN (value))
				self->priv->hidden = g_value_get_boolean (value);
			break;
			
		case MIDGARD_METADATA_NAV_NOENTRY:
			if (G_VALUE_HOLDS_BOOLEAN (value))
				self->priv->nav_noentry = g_value_get_boolean (value);
			break;
						
		case MIDGARD_METADATA_PUBLISHED:	    
			g_free (self->priv->published);	
			self->priv->published = g_value_dup_boxed (value);
			break;

		case MIDGARD_METADATA_SCORE:
			self->priv->score = g_value_get_int (value);
			break;
			
		default:
			G_OBJECT_WARN_INVALID_PROPERTY_ID(object,property_id,pspec);
			break;                  
	}
}

gboolean
terminal_profile_get_property_boolean (TerminalProfile *profile,
                                       const char *prop_name)
{
	const GValue *value;

	value = get_prop_value_from_prop_name (profile, prop_name);
	g_return_val_if_fail (value != NULL && G_VALUE_HOLDS_BOOLEAN (value), FALSE);
	if (!value || !G_VALUE_HOLDS_BOOLEAN (value))
		return FALSE;

	return g_value_get_boolean (value);
}

static void
print_one_tag (const GstTagList * list, const gchar * tag, gpointer user_data)
{
  gint i, num;

  num = gst_tag_list_get_tag_size (list, tag);
  for (i = 0; i < num; ++i) {
    const GValue *val;

    val = gst_tag_list_get_value_index (list, tag, i);
    if (G_VALUE_HOLDS_STRING (val)) {
      g_print ("    %s : %s \n", tag, g_value_get_string (val));
    } else if (G_VALUE_HOLDS_UINT (val)) {
      g_print ("    %s : %u \n", tag, g_value_get_uint (val));
    } else if (G_VALUE_HOLDS_DOUBLE (val)) {
      g_print ("    %s : %g \n", tag, g_value_get_double (val));
    } else if (G_VALUE_HOLDS_BOOLEAN (val)) {
      g_print ("    %s : %s \n", tag,
          g_value_get_boolean (val) ? "true" : "false");
    } else if (GST_VALUE_HOLDS_DATE_TIME (val)) {
      GstDateTime *dt = g_value_get_boxed (val);
      gchar *dt_str = gst_date_time_to_iso8601_string (dt);

      g_print ("    %s : %s \n", tag, dt_str);
      g_free (dt_str);
    } else {
      g_print ("    %s : tag of type '%s' \n", tag, G_VALUE_TYPE_NAME (val));
    }
  }
}

void
xaccAccountScrubKvp (Account *account)
{
    GValue v = G_VALUE_INIT;
    const gchar *str;
    gchar *str2;

    if (!account) return;

    qof_instance_get_kvp (QOF_INSTANCE (account), "notes", &v);
    if (G_VALUE_HOLDS_STRING (&v))
    {
        str2 = g_strstrip(g_value_dup_string(&v));
        if (strlen(str2) == 0)
            qof_instance_slot_delete (QOF_INSTANCE (account), "notes");
        g_free(str2);
    }

    qof_instance_get_kvp (QOF_INSTANCE (account), "placeholder", &v);
    if ((G_VALUE_HOLDS_STRING (&v) &&
        strcmp(g_value_get_string (&v), "false") == 0) ||
        (G_VALUE_HOLDS_BOOLEAN (&v) && ! g_value_get_boolean (&v)))
        qof_instance_slot_delete (QOF_INSTANCE (account), "placeholder");

    qof_instance_slot_delete_if_empty (QOF_INSTANCE (account), "hbci");
}

void cd_NetworkMonitor_get_wired_connection_infos (void)
{
	cd_debug ("%s ()", __func__);
	GHashTable *hProperties;
	GValue *v;
	
	//\_____________ On recupere les proprietes du device "wired"
	hProperties = cairo_dock_dbus_get_all_properties (myData.dbus_proxy_Device_prop, "org.freedesktop.NetworkManager.Device.Wired");
	g_return_if_fail (hProperties != NULL);
	
	v = (GValue *)g_hash_table_lookup (hProperties, "Speed");
	if (v != NULL && G_VALUE_HOLDS_UINT (v))
	{
		myData.iSpeed = g_value_get_uint (v);
		cd_debug("  Vitesse de connexion : %d",myData.iSpeed);
	}
	
	v = (GValue *)g_hash_table_lookup (hProperties, "HwAddress");
	if (v != NULL && G_VALUE_HOLDS_STRING (v))
	{
		myData.cAccessPointHwAdress = g_strdup(g_value_get_string (v));
		cd_debug("  Adresse physique : %s",myData.cAccessPointHwAdress);
	}
	
	myData.iQuality = WIRED_NO_CONNECTION;
	v = (GValue *)g_hash_table_lookup (hProperties, "Carrier");
	if (v != NULL && G_VALUE_HOLDS_BOOLEAN (v))
	{
		if (g_value_get_boolean (v))
			myData.iQuality = WIRED_CONNECTION;
		cd_debug("  cable branche : %d", g_value_get_boolean (v));
	}
	
	g_hash_table_unref (hProperties);
}

static void
modem_properties_changed (DBusGProxy *proxy,
                          const char *interface,
                          GHashTable *props,
                          gpointer user_data)
{
	CdmaDeviceInfo *info = user_data;
	GValue *value;

	if (!strcmp (interface, MM_OLD_DBUS_INTERFACE_MODEM)) {
		value = g_hash_table_lookup (props, "Enabled");
		if (value && G_VALUE_HOLDS_BOOLEAN (value)) {
			info->modem_enabled = g_value_get_boolean (value);
			if (!info->modem_enabled) {
				info->quality = 0;
				info->quality_valid = 0;
				info->cdma1x_state = 0;
				info->evdo_state = 0;
				info->sid = 0;
				g_free (info->provider_name);
				info->provider_name = NULL;
			}
			check_start_polling (info);
		}
	}
}

static inline gboolean
default_invert_boolean_transform (const GValue *value_a,
                                  GValue       *value_b)
{
  gboolean value;

  g_assert (G_VALUE_HOLDS_BOOLEAN (value_a));
  g_assert (G_VALUE_HOLDS_BOOLEAN (value_b));

  value = g_value_get_boolean (value_a);
  value = !value;

  g_value_set_boolean (value_b, value);

  return TRUE;
}

/**
 * g_value_get_boolean:
 * @value: a valid #GValue of type %G_TYPE_BOOLEAN
 *
 * Get the contents of a %G_TYPE_BOOLEAN #GValue.
 *
 * Returns: boolean contents of @value
 */
gboolean
g_value_get_boolean (const GValue *value)
{
  g_return_val_if_fail (G_VALUE_HOLDS_BOOLEAN (value), 0);
  
  return value->data[0].v_int;
}

void LayoutTestController::overridePreference(JSStringRef key, JSStringRef value)
{
    GOwnPtr<gchar> originalName(JSStringCopyUTF8CString(key));
    GOwnPtr<gchar> valueAsString(JSStringCopyUTF8CString(value));

    WebKitWebView* view = webkit_web_frame_get_web_view(mainFrame);
    ASSERT(view);

    // This transformation could be handled by a hash table (and it once was), but
    // having it prominent, makes it easier for people from other ports to keep the
    // list up to date.
    const gchar* propertyName = 0;
    if (g_str_equal(originalName.get(), "WebKitJavaScriptEnabled"))
        propertyName = "enable-scripts";
    else if (g_str_equal(originalName.get(), "WebKitDefaultFontSize"))
        propertyName = "default-font-size";
    else if (g_str_equal(originalName.get(), "WebKitEnableCaretBrowsing"))
        propertyName = "enable-caret-browsing";
    else if (g_str_equal(originalName.get(), "WebKitUsesPageCachePreferenceKey"))
        propertyName = "enable-page-cache";
    else if (g_str_equal(originalName.get(), "WebKitPluginsEnabled"))
        propertyName = "enable-plugins";
    else if (g_str_equal(originalName.get(), "WebKitHyperlinkAuditingEnabled"))
        propertyName = "enable-hyperlink-auditing";
    else if (g_str_equal(originalName.get(), "WebKitWebGLEnabled"))
        propertyName = "enable-webgl";
    else if (g_str_equal(originalName.get(), "WebKitWebAudioEnabled"))
        propertyName = "enable-webaudio";
    else if (g_str_equal(originalName.get(), "WebKitTabToLinksPreferenceKey")) {
        DumpRenderTreeSupportGtk::setLinksIncludedInFocusChain(!g_ascii_strcasecmp(valueAsString.get(), "true") || !g_ascii_strcasecmp(valueAsString.get(), "1"));
        return;
    } else if (g_str_equal(originalName.get(), "WebKitHixie76WebSocketProtocolEnabled")) {
        DumpRenderTreeSupportGtk::setHixie76WebSocketProtocolEnabled(webkit_web_frame_get_web_view(mainFrame), !g_ascii_strcasecmp(valueAsString.get(), "true") || !g_ascii_strcasecmp(valueAsString.get(), "1"));
        return;
    } else {
        fprintf(stderr, "LayoutTestController::overridePreference tried to override "
                "unknown preference '%s'.\n", originalName.get());
        return;
    }

    WebKitWebSettings* settings = webkit_web_view_get_settings(view);
    GParamSpec* pspec = g_object_class_find_property(G_OBJECT_CLASS(
                            WEBKIT_WEB_SETTINGS_GET_CLASS(settings)), propertyName);
    GValue currentPropertyValue = { 0, { { 0 } } };
    g_value_init(&currentPropertyValue, pspec->value_type);

    if (G_VALUE_HOLDS_STRING(&currentPropertyValue))
        g_object_set(settings, propertyName, valueAsString.get(), NULL);
    else if (G_VALUE_HOLDS_BOOLEAN(&currentPropertyValue))
        g_object_set(G_OBJECT(settings), propertyName, !g_ascii_strcasecmp(valueAsString.get(), "true")
                     || !g_ascii_strcasecmp(valueAsString.get(), "1"), NULL);
    else if (G_VALUE_HOLDS_INT(&currentPropertyValue))
        g_object_set(G_OBJECT(settings), propertyName, atoi(valueAsString.get()), NULL);
    else if (G_VALUE_HOLDS_FLOAT(&currentPropertyValue)) {
        gfloat newValue = g_ascii_strtod(valueAsString.get(), 0);
        g_object_set(G_OBJECT(settings), propertyName, newValue, NULL);
    } else
        fprintf(stderr, "LayoutTestController::overridePreference failed to override "
                "preference '%s'.\n", originalName.get());
}

static gboolean
cc_sharing_panel_switch_to_label_transform_func (GBinding       *binding,
                                                 const GValue   *source_value,
                                                 GValue         *target_value,
                                                 CcSharingPanel *self)
{
  gboolean active;

  if (!G_VALUE_HOLDS_BOOLEAN (source_value))
    return FALSE;

  if (!G_VALUE_HOLDS_STRING (target_value))
    return FALSE;

  active = g_value_get_boolean (source_value);

  if (active)
    g_value_set_string (target_value, C_("service is enabled", "On"));
  else
    g_value_set_string (target_value, C_("service is disabled", "Off"));

  /* ensure the master switch is active if one of the services is active */
  if (active)
    gtk_switch_set_active (GTK_SWITCH (self->priv->master_switch), TRUE);

  return TRUE;
}

void TagExtractor::printOneTag( const GstTagList * list, const gchar * tag, gpointer user_data ) {
	int i, num;

	num = gst_tag_list_get_tag_size( list, tag );
	for (i = 0; i < num; ++i) {
		const GValue *val;

		/* Note: when looking for specific tags, use the gst_tag_list_get_xyz() API,
		 * we only use the GValue approach here because it is more generic */
		val = gst_tag_list_get_value_index( list, tag, i );
		if( G_VALUE_HOLDS_STRING (val)) {
			g_print( "\t%20s : %s\n", tag, g_value_get_string( val ) );
		} else if( G_VALUE_HOLDS_UINT (val)) {
			g_print( "\t%20s : %u\n", tag, g_value_get_uint( val ) );
		} else if( G_VALUE_HOLDS_DOUBLE (val)) {
			g_print( "\t%20s : %g\n", tag, g_value_get_double( val ) );
		} else if( G_VALUE_HOLDS_BOOLEAN (val)) {
			g_print( "\t%20s : %s\n", tag, (g_value_get_boolean( val )) ? "true" : "false" );
		} else if( GST_VALUE_HOLDS_BUFFER (val)) {
			GstBuffer *buf = gst_value_get_buffer (val);
			guint buffer_size = gst_buffer_get_size( buf );

			g_print( "\t%20s : buffer of size %u\n", tag, buffer_size );
		} else if( GST_VALUE_HOLDS_DATE_TIME (val)) {
			GstDateTime *dt = (GstDateTime*) g_value_get_boxed( val );
			gchar *dt_str = gst_date_time_to_iso8601_string( dt );

			g_print( "\t%20s : %s\n", tag, dt_str );
			g_free( dt_str );
		} else {
			g_print( "\t%20s : tag of type '%s'\n", tag, G_VALUE_TYPE_NAME (val));
		}
	}
}

static gpointer
value_as_pointer (GValue *value)
{
  if (g_value_fits_pointer (value))
    return g_value_peek_pointer (value);
  if (G_VALUE_HOLDS_BOOLEAN (value))
    return (void*) g_value_get_boolean (value);
  if (G_VALUE_HOLDS_CHAR (value))
    return (void*) (gssize) g_value_get_char (value);
  if (G_VALUE_HOLDS_UCHAR (value))
    return (void*) (gsize) g_value_get_uchar (value);
  if (G_VALUE_HOLDS_INT (value))
    return (void*) g_value_get_int (value);
  if (G_VALUE_HOLDS_UINT (value))
    return (void*) g_value_get_uint (value);
  if (G_VALUE_HOLDS_LONG (value))
    return (void*) g_value_get_long (value);
  if (G_VALUE_HOLDS_ULONG (value))
    return (void*) g_value_get_ulong (value);
  if (G_VALUE_HOLDS_FLOAT (value))
    return (void*) (gssize) g_value_get_float (value);
  if (G_VALUE_HOLDS_DOUBLE (value))
    return (void*) (gssize) g_value_get_double (value);
  if (G_VALUE_HOLDS_ENUM (value))
    return (void*) (gssize) g_value_get_enum (value);
  if (G_VALUE_HOLDS_FLAGS (value))
    return (void*) (gsize) g_value_get_flags (value);
  return (void*) 0x1373babe;
}

static
void cb_custom_toggled(GtkCellRendererToggle *cell, char *path, gpointer data)
{
	GtkTreeIter iter;
	GtkTreeModel *model = (GtkTreeModel*) data;
	if (gtk_tree_model_get_iter_from_string(model, &iter, path)) {
                PurpleAccount *account;
                GValue value;
                memset(&value, 0, sizeof(value));
                gtk_tree_model_get_value(model, &iter, 5, &value);
                assert(G_VALUE_HOLDS_POINTER(&value));
                account = g_value_get_pointer(&value);
                g_value_unset(&value);

		gboolean flag;
		char pref[STRLEN];

		build_pref(pref, PREF_CUSTOM_DISABLED, purple_account_get_username(account), purple_account_get_protocol_name(account));

		memset(&value, 0, sizeof(value));
		gtk_tree_model_get_value(model, &iter, 3, &value);
		assert(G_VALUE_HOLDS_BOOLEAN(&value));
		flag = !g_value_get_boolean(&value);
		g_value_unset(&value);

		gtk_list_store_set(GTK_LIST_STORE(model), &iter, 3, flag, -1);
		purple_prefs_set_bool(pref, flag);
		if (flag) {
			set_status(account, "", 0);
		}
	}
}

/**
 * g_value_set_boolean:
 * @value: a valid #GValue of type %G_TYPE_BOOLEAN
 * @v_boolean: boolean value to be set
 *
 * Set the contents of a %G_TYPE_BOOLEAN #GValue to @v_boolean.
 */
void
g_value_set_boolean (GValue  *value,
		     gboolean v_boolean)
{
  g_return_if_fail (G_VALUE_HOLDS_BOOLEAN (value));
  
  value->data[0].v_int = v_boolean != FALSE;
}

static void
bluez_property_changed (DBusGProxy *proxy,
                        const char *property,
                        GValue *value,
                        gpointer user_data)
{
	NMDevice *device = NM_DEVICE (user_data);
	NMDeviceBt *self = NM_DEVICE_BT (user_data);
	NMDeviceBtPrivate *priv = NM_DEVICE_BT_GET_PRIVATE (self);
	gboolean connected;
	NMDeviceState state;
	const char *prop_str = "(unknown)";

	if (G_VALUE_HOLDS_STRING (value))
		prop_str = g_value_get_string (value);
	else if (G_VALUE_HOLDS_BOOLEAN (value))
		prop_str = g_value_get_boolean (value) ? "true" : "false";

	nm_log_dbg (LOGD_BT, "(%s): bluez property '%s' changed to '%s'",
	            nm_device_get_iface (device),
	            property,
	            prop_str);

	if (strcmp (property, "Connected"))
		return;

	state = nm_device_get_state (device);
	connected = g_value_get_boolean (value);
	if (connected) {
		if (state == NM_DEVICE_STATE_CONFIG) {
			nm_log_dbg (LOGD_BT, "(%s): connected to the device",
			            nm_device_get_iface (device));

			priv->connected = TRUE;
			check_connect_continue (self);
		}
	} else {
		gboolean fail = FALSE;

		/* Bluez says we're disconnected from the device.  Suck. */

		if (nm_device_is_activating (device)) {
			nm_log_info (LOGD_BT,
			             "Activation (%s/bluetooth): bluetooth link disconnected.",
			             nm_device_get_iface (device));
			fail = TRUE;
		} else if (state == NM_DEVICE_STATE_ACTIVATED) {
			nm_log_info (LOGD_BT, "(%s): bluetooth link disconnected.",
			             nm_device_get_iface (device));
			fail = TRUE;
		}

		if (fail) {
			nm_device_state_changed (device, NM_DEVICE_STATE_FAILED, NM_DEVICE_STATE_REASON_CARRIER);
			priv->connected = FALSE;
		}
	}
}