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 #ifndef MYSORTFILTERPROXYMODEL_H

 #define MYSORTFILTERPROXYMODEL_H

 #include <QDate>

 #include <QSortFilterProxyModel>

 //! [0]

 class MySortFilterProxyModel : public QSortFilterProxyModel

 {

     Q_OBJECT

 public:

     MySortFilterProxyModel(QObject *parent = 0);

     QDate filterMinimumDate() const { return minDate; }

     void setFilterMinimumDate(const QDate &date);

     QDate filterMaximumDate() const { return maxDate; }

     void setFilterMaximumDate(const QDate &date);

 protected:

     bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const;

     bool lessThan(const QModelIndex &left, const QModelIndex &right) const;

 private:

     bool dateInRange(const QDate &date) const;

     QDate minDate;

     QDate maxDate;

 };

 //! [0]

 #endif