[libdazzle] radio-box: add API to remove item

[Christian Hergert <chergert src gnome org>]

commit 1001fd9bd9c618f8d4687c596d4d922cceb8a6e0
Author: Christian Hergert <chergert redhat com>
Date:   Tue Nov 20 10:00:24 2018 -0800

    radio-box: add API to remove item

 src/widgets/dzl-radio-box.c | 25 +++++++++++++++++++++++++
 src/widgets/dzl-radio-box.h |  3 +++
 2 files changed, 28 insertions(+)
---
diff --git a/src/widgets/dzl-radio-box.c b/src/widgets/dzl-radio-box.c
index 780c536..74901cb 100644
--- a/src/widgets/dzl-radio-box.c
+++ b/src/widgets/dzl-radio-box.c
@@ -258,6 +258,31 @@ dzl_radio_box_init (DzlRadioBox *self)
   gtk_widget_insert_action_group (GTK_WIDGET (self), "radiobox", G_ACTION_GROUP (group));
 }
 
+void
+dzl_radio_box_remove_item (DzlRadioBox *self,
+                           const gchar *id)
+{
+  DzlRadioBoxPrivate *priv = dzl_radio_box_get_instance_private (self);
+
+  g_return_if_fail (DZL_IS_RADIO_BOX (self));
+  g_return_if_fail (id != NULL);
+
+  for (guint i = 0; i < priv->items->len; i++)
+    {
+      DzlRadioBoxItem *item = &g_array_index (priv->items, DzlRadioBoxItem, i);
+
+      if (g_strcmp0 (id, item->id) == 0)
+        {
+          GtkToggleButton *button = item->button;
+
+          g_array_remove_index_fast (priv->items, i);
+          gtk_widget_destroy (GTK_WIDGET (button));
+
+          break;
+        }
+    }
+}
+
 void
 dzl_radio_box_add_item (DzlRadioBox *self,
                         const gchar *id,
diff --git a/src/widgets/dzl-radio-box.h b/src/widgets/dzl-radio-box.h
index 0ce3d8c..f727058 100644
--- a/src/widgets/dzl-radio-box.h
+++ b/src/widgets/dzl-radio-box.h
@@ -47,6 +47,9 @@ void         dzl_radio_box_add_item      (DzlRadioBox *self,
                                           const gchar *id,
                                           const gchar *text);
 DZL_AVAILABLE_IN_ALL
+void         dzl_radio_box_remove_item   (DzlRadioBox *self,
+                                          const gchar *id);
+DZL_AVAILABLE_IN_ALL
 const gchar *dzl_radio_box_get_active_id (DzlRadioBox *self);
 DZL_AVAILABLE_IN_ALL
 void         dzl_radio_box_set_active_id (DzlRadioBox *self,