+void Int::update_widget()
+{
+ if (!spin_box_)
+ return;
+
+ value_ = getter_();
+ GVariant *value = value_.gobj();
+ assert(value);
+
+ const GVariantType *const type = g_variant_get_type(value);
+ assert(type);
+
+ int64_t int_val = 0;
+
+ if (g_variant_type_equal(type, G_VARIANT_TYPE_BYTE)) {
+ int_val = g_variant_get_byte(value);
+ } else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT16)) {
+ int_val = g_variant_get_int16(value);
+ } else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT16)) {
+ int_val = g_variant_get_uint16(value);
+ } else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT32)) {
+ int_val = g_variant_get_int32(value);
+ } else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT32)) {
+ int_val = g_variant_get_uint32(value);
+ } else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT64)) {
+ int_val = g_variant_get_int64(value);
+ } else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT64)) {
+ int_val = g_variant_get_uint64(value);
+ } else {
+ // Unexpected value type.
+ assert(false);
+ }
+
+ spin_box_->setValue((int)int_val);
+}
+