qt-everywhere-src-5.14.1/qtdoc/doc/src/snippets/modelview-subclasses/model.h

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#ifndef MODEL_H
#define MODEL_H

#include <QAbstractListModel>
#include <QObject>
#include <qvector.h>

class LinearModel : public QAbstractListModel
{
    Q_OBJECT
public:
    LinearModel(QObject *parent = 0)
        : QAbstractListModel(parent) {}

    int rowCount(const QModelIndex &parent = QModelIndex()) const;
    QModelIndex index(int row, int column = 0, const QModelIndex &parent = QModelIndex()) const;
    QVariant data(const QModelIndex &index, int role) const;

    Qt::ItemFlags flags(const QModelIndex &index) const;
    bool setData(const QModelIndex &index, const QVariant &value,
                 int role = Qt::EditRole);

    bool insertRows(int position, int rows, const QModelIndex &index = QModelIndex());
    bool removeRows(int position, int rows, const QModelIndex &index = QModelIndex());

private:
    QVector<int> values;
};

#endif