simplified and cleaned up wxGTK's focus handling

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@52473 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/radiobox.h

@@ -128,17 +128,12 @@ public:
     // implementation
     // --------------
 
-    void SetFocus();
     void GtkDisableEvents();
     void GtkEnableEvents();
 #if wxUSE_TOOLTIPS
     void ApplyToolTip( GtkTooltips *tips, const gchar *tip );
 #endif // wxUSE_TOOLTIPS
 
-    virtual void OnInternalIdle();
-
-    bool                        m_hasFocus,
-                                m_lostFocus;
     wxRadioBoxButtonsInfoList   m_buttonsInfo;
 
 protected:
@@ -151,12 +146,11 @@ protected:
     virtual void DoApplyWidgetStyle(GtkRcStyle *style);
     virtual GdkWindow *GTKGetWindow(wxArrayGdkWindows& windows) const;
 
+    virtual bool GTKNeedsToFilterSameWindowFocus() const { return true; }
+
     virtual bool GTKWidgetNeedsMnemonic() const;
     virtual void GTKWidgetDoSetMnemonic(GtkWidget* w);
 
-    // common part of all ctors
-    void Init();
-
 private:
     DECLARE_DYNAMIC_CLASS(wxRadioBox)
 };