GtkComboBox: Add a constructor that takes a model and adds an entry

https://bugzilla.gnome.org/show_bug.cgi?id=633050

docs/reference/gtk/gtk3-sections.txt

@@ -779,6 +779,7 @@ GtkComboBox
 gtk_combo_box_new
 gtk_combo_box_new_with_entry
 gtk_combo_box_new_with_model
+gtk_combo_box_new_with_model_and_entry
 gtk_combo_box_get_wrap_width
 gtk_combo_box_set_wrap_width
 gtk_combo_box_get_row_span_column

gtk/gtk.symbols

@@ -821,6 +821,7 @@ gtk_combo_box_get_wrap_width
 gtk_combo_box_new
 gtk_combo_box_new_with_entry
 gtk_combo_box_new_with_model
+gtk_combo_box_new_with_model_and_entry
 gtk_combo_box_popdown
 gtk_combo_box_popup
 gtk_combo_box_popup_for_device

gtk/gtkcombobox.c

@@ -4882,6 +4882,23 @@ gtk_combo_box_new_with_model (GtkTreeModel *model)
   return GTK_WIDGET (combo_box);
 }
 
+/**
+ * gtk_combo_box_new_with_model_and_entry:
+ *
+ * Creates a new empty #GtkComboBox with an entry
+ * and with the model initialized to @model.
+ *
+ * Return value: A new #GtkComboBox
+ */
+GtkWidget *
+gtk_combo_box_new_with_model_and_entry (GtkTreeModel *model)
+{
+  return g_object_new (GTK_TYPE_COMBO_BOX,
+                       "has-entry", TRUE,
+                       "model", model,
+                       NULL);
+}
+
 /**
  * gtk_combo_box_get_wrap_width:
  * @combo_box: A #GtkComboBox

gtk/gtkcombobox.h

@@ -69,6 +69,7 @@ GType         gtk_combo_box_get_type         (void) G_GNUC_CONST;
 GtkWidget    *gtk_combo_box_new                      (void);
 GtkWidget    *gtk_combo_box_new_with_entry           (void);
 GtkWidget    *gtk_combo_box_new_with_model           (GtkTreeModel *model);
+GtkWidget    *gtk_combo_box_new_with_model_and_entry (GtkTreeModel *model);
 
 /* grids */
 gint          gtk_combo_box_get_wrap_width         (GtkComboBox *combo_box);