#include <QtGui/QSortFilterProxyModel>

// Override sort filter proxy to remove even numbered rows.
class MyFilterModel : public QSortFilterProxyModel
{
    Q_OBJECT

public:
    MyFilterModel( QObject* parent );
    ~MyFilterModel( void );

public slots:
    void FilterElements( bool filter );

protected:
    virtual bool filterAcceptsColumn ( int source_column, const QModelIndex & source_parent ) const;
    virtual bool filterAcceptsRow( int source_row, const QModelIndex& source_parent ) const;

private:
    bool mFilter;
};