treemodelcompleter.h Example File

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#ifndef TREEMODELCOMPLETER_H
#define TREEMODELCOMPLETER_H

#include <QCompleter>

class TreeModelCompleter : public QCompleter
{
    Q_OBJECT
    Q_PROPERTY(QString separator READ separator WRITE setSeparator)

public:
    explicit TreeModelCompleter(QObject *parent = 0);
    explicit TreeModelCompleter(QAbstractItemModel *model, QObject *parent = 0);

    QString separator() const;
public slots:
    void setSeparator(const QString &separator);

protected:
    QStringList splitPath(const QString &path) const override;
    QString pathFromIndex(const QModelIndex &index) const override;

private:
    QString sep;
};

#endif // TREEMODELCOMPLETER_H