Implement basic MVC logic (change an item in one

view and all views update themselves) and made
   wxDataViewToggleCell react to mouse clicks as a
   test for that (generic code).


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@38298 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/dataview.h

@@ -112,6 +112,7 @@ public:
     bool GetValue( wxVariant &value );
     
     bool Render( wxRect cell, wxDC *dc, int state );
+    bool Activate( wxRect cell, wxDataViewListModel *model, size_t col, size_t row );
     wxSize GetSize();
     
 private: