source: trunk/doc/src/snippets/qtreeview-dnd/treemodel.h@ 651

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#ifndef TREEMODEL_H
#define TREEMODEL_H

#include <QAbstractItemModel>
#include <QModelIndex>
#include <QVariant>

class TreeItem;

class TreeModel : public QAbstractItemModel
{
    Q_OBJECT

public:
    TreeModel(const QStringList &strings, QObject *parent = 0);
    ~TreeModel();

    QVariant data(const QModelIndex &index, int role) const;
    Qt::ItemFlags flags(const QModelIndex &index) const;
    QVariant headerData(int section, Qt::Orientation orientation,
                        int role = Qt::DisplayRole) const;
    QModelIndex index(int row, int column,
                      const QModelIndex &parent = QModelIndex()) const;
    QModelIndex parent(const QModelIndex &index) const;
    int rowCount(const QModelIndex &parent = QModelIndex()) const;
    int columnCount(const QModelIndex &parent = QModelIndex()) const;

    bool insertRows(int position, int rows, const QModelIndex &parent = QModelIndex());
    bool removeRows(int position, int rows, const QModelIndex &parent = QModelIndex());
    bool setData(const QModelIndex &index, const QVariant &value,
                 int role = Qt::EditRole);

private:
    void setupModelData(const QStringList &lines, TreeItem *parent);

    TreeItem *rootItem;
};

#endif