tspmodel.h

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#ifndef TSPMODEL_H
#define TSPMODEL_H

#include "globals.h"

#include <QAbstractTableModel>
#include <QDataStream>
#include <QVector>

class CTSPModel: public QAbstractTableModel
{
    Q_OBJECT

public:
    CTSPModel(QObject *parent = 0);
    void clear();
    int columnCount(const QModelIndex &parent = QModelIndex()) const;
    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
    Qt::ItemFlags flags(const QModelIndex &index) const;
    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
    bool loadTask(const QString &fname);
    quint16 numCities() const;
    void randomize();
    int rowCount(const QModelIndex &parent = QModelIndex()) const;
    bool saveTask(const QString &fname);
    bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);
    void setNumCities(int n);

signals:
    void numCitiesChanged(int);

private:
    QSettings *settings;
    QVector<QVector<double> > table;
    quint16 nCities;
    bool loadError(QDataStream::Status);
    bool loadTSPT(QDataStream *);
    bool loadZKT(QDataStream *);
    double rand(int, int) const;
};

#endif // TSPMODEL_H