variantMapLookup.h

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#pragma once

#include <QObject>

#include <QVariantMap>

#include <QtQml/qqmlregistration.h>

class VariantMapLookupFoo : public QObject

    Q_OBJECT

    QML_ELEMENT

    Q_PROPERTY(QVariantMap data READ data WRITE setData NOTIFY dataChanged)

    Q_PROPERTY(QList<QVariantMap> many READ many NOTIFY dataChanged)

public:

    VariantMapLookupFoo(QObject *parent = nullptr) : QObject(parent) { }

    QVariantMap data() const { return m_data; }

    void setData(const QVariantMap &data)

        if (data == m_data)

            return;

        m_data = data;

        emit dataChanged();

    QList<QVariantMap> many() const

        const QVariantMap one = data();

        return QList<QVariantMap>({one, one, one});

signals:

    void dataChanged();

private:

    QVariantMap m_data;

};