#ifndef CURRENCYMODEL_H#define CURRENCYMODEL_H#include <QAbstractTableModel>#include <QMap>class CurrencyModel : public QAbstractTableModel{public:    CurrencyModel(QObject *parent = 0);    void setCurrencyMap(const QMap<QString, double> &map);    int rowCount(const QModelIndex &parent) const;    int columnCount(const QModelIndex &parent) const;    QVariant data(const QModelIndex &index, int role) const;    QVariant headerData(int section, Qt::Orientation orientation,                        int role) const;private:    QString currencyAt(int offset) const;    QMap<QString, double> currencyMap;};#endif