Use a private GtkCellRendererText for rendering text in a wxDataViewCustomRenderer

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@49325 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/dataview.h

@@ -151,7 +151,17 @@ protected:
 
 private:
     wxDC        *m_dc;
-    
+
+public:    
+    // Internal, temporay for RenderText.
+    GtkCellRenderer      *m_text_renderer;
+    GdkWindow            *window;
+    GtkWidget            *widget;
+    void                 *background_area;
+    void                 *cell_area;
+    void                 *expose_area;
+    int                   flags;
+
 protected:
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewCustomRenderer)
 };