[gtkmm] RadioAction: Added join_group().

[Murray Cumming <murrayc src gnome org>]

commit e33c746fca719eef2f32f692f3e3609f7c08ac75
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon Sep 6 13:03:25 2010 +0200

    RadioAction: Added join_group().
    
    * gtk/src/radioaction.hg: Wrapped gtk_radio_action_join_group(), which
      avoids the need to ever see a *Group object.

 ChangeLog              |    7 +++++++
 gtk/src/radioaction.hg |   11 ++++++-----
 2 files changed, 13 insertions(+), 5 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index b31a2c6..95e8431 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2010-09-06  Murray Cumming  <murrayc murrayc com>
 
+	RadioAction: Added join_group().
+
+	* gtk/src/radioaction.hg: Wrapped gtk_radio_action_join_group(), which
+  avoids the need to ever see a *Group object.
+
+2010-09-06  Murray Cumming  <murrayc murrayc com>
+
 	IconInfo: Fix the build.
 
 	* gtk/src/iconinfo.[hg|ccg]: Correct silly mistakes.
diff --git a/gtk/src/radioaction.hg b/gtk/src/radioaction.hg
index 6defc94..7bc319c 100644
--- a/gtk/src/radioaction.hg
+++ b/gtk/src/radioaction.hg
@@ -29,8 +29,8 @@ namespace Gtk
 
 /** An action of which only one in a group can be active.
  *
- * A Gtk::RadioAction is similar to Gtk::RadioMenuItem. A number of 
- * radio actions can be linked together so that only one may be active 
+ * A Gtk::RadioAction is similar to Gtk::RadioMenuItem. A number of
+ * radio actions can be linked together so that only one may be active
  * at any one time.
  */
 class RadioAction : public Gtk::ToggleAction
@@ -38,7 +38,7 @@ class RadioAction : public Gtk::ToggleAction
   _CLASS_GOBJECT(RadioAction, GtkRadioAction, GTK_RADIO_ACTION, Gtk::ToggleAction, GtkToggleAction)
 public:
   typedef RadioButtonGroup Group;
-  
+
 protected:
   //TODO: Remove the default constructor, because name may not be NULL.
   _CTOR_DEFAULT
@@ -117,7 +117,9 @@ public:
   _WRAP_METHOD(Group get_group(), gtk_radio_action_get_group)
    void set_group(Group& group);
   _IGNORE(gtk_radio_action_set_group)
-  
+
+  _WRAP_METHOD(void join_group(const Glib::RefPtr<RadioAction>& group_source), gtk_radio_action_join_group)
+
   _WRAP_METHOD(int get_current_value() const, gtk_radio_action_get_current_value)
   _WRAP_METHOD(void set_current_value(int current_value), gtk_radio_action_set_current_value)
 
@@ -136,4 +138,3 @@ public:
 };
 
 } // namespace Gtk
-