// helper method for wxLog
wxString GetTitle( const wxDataViewItem &item ) const;
+ wxString GetArtist( const wxDataViewItem &item ) const;
int GetYear( const wxDataViewItem &item ) const;
// helper methods to change the model
// override sorting to always sort branches ascendingly
int Compare( const wxDataViewItem &item1, const wxDataViewItem &item2,
- unsigned int column, bool ascending );
+ unsigned int column, bool ascending ) const;
// implementation of base class virtuals to define model