First implementation

include/wx/gtk/radiobut.h

@@ -13,7 +13,7 @@
 // wxRadioButton
 //-----------------------------------------------------------------------------
 
-class WXDLLIMPEXP_CORE wxRadioButton: public wxControl
+class WXDLLIMPEXP_CORE wxRadioButton: public wxRadioButtonBase<wxControl>
 {
 public:
     wxRadioButton() { }

include/wx/gtk1/radiobut.h

@@ -13,7 +13,7 @@
 // wxRadioButton
 //-----------------------------------------------------------------------------
 
-class WXDLLIMPEXP_CORE wxRadioButton: public wxControl
+class WXDLLIMPEXP_CORE wxRadioButton: public wxRadioButtonBase<wxControl>
 {
 public:
     wxRadioButton() { }

include/wx/motif/radiobut.h

@@ -11,7 +11,7 @@
 #ifndef _WX_RADIOBUT_H_
 #define _WX_RADIOBUT_H_
 
-class WXDLLIMPEXP_CORE wxRadioButton: public wxControl
+class WXDLLIMPEXP_CORE wxRadioButton: public wxRadioButtonBase<wxControl>
 {
     wxDECLARE_DYNAMIC_CLASS(wxRadioButton);
 public:

include/wx/msw/radiobut.h

@@ -13,7 +13,7 @@
 
 #include "wx/msw/ownerdrawnbutton.h"
 
-class WXDLLIMPEXP_CORE wxRadioButton : public wxMSWOwnerDrawnButton<wxControl>
+class WXDLLIMPEXP_CORE wxRadioButton : public public wxRadioButtonBase<wxMSWOwnerDrawnButton<wxControl>>
 {
 public:
     // ctors and creation functions

include/wx/osx/radiobut.h

@@ -11,7 +11,7 @@
 #ifndef _WX_RADIOBUT_H_
 #define _WX_RADIOBUT_H_
 
-class WXDLLIMPEXP_CORE wxRadioButton: public wxControl
+class WXDLLIMPEXP_CORE wxRadioButton: public wxRadioButtonBase<wxControl>
 {
     wxDECLARE_DYNAMIC_CLASS(wxRadioButton);
 

include/wx/qt/radiobut.h

@@ -10,7 +10,7 @@
 
 class QRadioButton;
 
-class WXDLLIMPEXP_CORE wxRadioButton : public wxControl
+class WXDLLIMPEXP_CORE wxRadioButton : public wxRadioButtonBase<wxControl>
 {
 public:
     wxRadioButton();

include/wx/radiobut.h

@@ -32,6 +32,45 @@
 
 #include "wx/control.h"
 
+class WXDLLIMPEXP_FWD_CORE wxRadioButton;
+
+wxRadioButton* wxGetNextButtonInGroup(wxRadioButton *btn);
+wxRadioButton* wxGetPreviousButtonInGroup(wxRadioButton *btn);
+wxRadioButton* wxGetFirstButtonInGroup(wxRadioButton *btn);
+wxRadioButton* wxGetLastButtonInGroup(wxRadioButton *btn);
+
+template <class W>
+class WXDLLIMPEXP_CORE wxRadioButtonBase : public W
+{
+public:
+    typedef W BaseWindowClass;
+
+    wxRadioButtonBase() { }
+
+    wxRadioButton* GetFirstInGroup() const
+    {
+        return wxGetFirstButtonInGroup( static_cast<wxRadioButton*>(this));
+    }
+
+    wxRadioButton* GetLastInGroup() const
+    {
+        return wxGetLastButtonInGroup( static_cast<wxRadioButton*>(this));
+    }
+
+    wxRadioButton* GetPreviousInGroup() const
+    {
+        return wxGetPreviousButtonInGroup( static_cast<wxRadioButton*>(this));
+    }
+
+    wxRadioButton* GetNextInGroup() const
+    {
+        return wxGetNextButtonInGroup( static_cast<wxRadioButton*>(this));
+    }
+
+private:
+    wxDECLARE_NO_COPY_TEMPLATE_CLASS(wxRadioButtonBase, W);
+};
+
 extern WXDLLIMPEXP_DATA_CORE(const char) wxRadioButtonNameStr[];
 
 #if defined(__WXUNIVERSAL__)

include/wx/univ/radiobut.h

@@ -17,7 +17,7 @@
 // wxRadioButton
 // ----------------------------------------------------------------------------
 
-class WXDLLIMPEXP_CORE wxRadioButton : public wxCheckBox
+class WXDLLIMPEXP_CORE wxRadioButton : public wxRadioButtonBase<wxCheckBox>
 {
 public:
     // constructors