- // this is a replacement for dynamic_cast<wxDataViewCustomRenderer> in the
- // code checking whether the renderer is interested in mouse events, it's
- // overridden in wxDataViewCustomRenderer to return the object itself but
- // intentionally returns NULL for all the other renderer classes as the
- // user should _not_ be able to override Activate/LeftClick() when deriving
- // from them for consistency with the other ports and while we can't
- // prevent this from working at compile-time because all renderers are
- // custom renderers in the generic implementation, we at least make sure
- // that it doesn't work at run-time because Activate/LeftClick() would
- // never be called
- virtual wxDataViewCustomRenderer *WXGetAsCustom() { return NULL; }
-
- // The generic implementation of some standard renderers reacts to item
- // activation, so provide this internal function which is called by
- // wxDataViewCtrl for them. It is called with the old value of the cell and
- // is passed the model and cell coordinates to be able to change the model
- // value for this cell.
- virtual void WXOnActivate(wxDataViewModel * WXUNUSED(model),
- const wxVariant& WXUNUSED(valueOld),
- const wxDataViewItem& WXUNUSED(item),
+ // These callbacks are used by generic implementation of wxDVC itself.
+ // They're different from the corresponding Activate/LeftClick() methods
+ // which should only be overridable for the custom renderers while the
+ // generic implementation uses these ones for all of them, including the
+ // standard ones.
+
+ virtual bool WXOnActivate(wxRect WXUNUSED(cell),
+ wxDataViewModel *WXUNUSED(model),
+ const wxDataViewItem & WXUNUSED(item),