Polymorphism with static calls

[niko]

I want classes that have some kind of static settings, take the code example below:

#include <QVariant>
#include <QMap>
#include <QDebug>
 
class A {
public:
    static QVariant getSetting(QString s) {
        return getSettings()[s];
    }
protected:
    static QMap<QString, QVariant> getSettings() {
        QMap<QString, QVariant> settings;
        settings["foo"] = "bar";
        settings["fooo"] = "baar";
        return settings;
    }
};
class B : public A {
    static QMap<QString, QVariant> getSettings() {
        QMap<QString, QVariant> settings = A::getSettings();
        settings["foo"] = "bar1";
        return settings;
    }
};
 
int main(char** /*argv*/, int /*argc*/) {
    qDebug() << A::getSetting("foo");
    qDebug() << A::getSetting("fooo");
    qDebug() << B::getSetting("foo"); //would like "bar1" here
    qDebug() << B::getSetting("fooo");
    return 0;
}

#include <QVariant>
#include <QMap>
#include <QDebug>

class A {
public:
    static QVariant getSetting(QString s) {
        return getSettings()[s];
    }
protected:
    static QMap<QString, QVariant> getSettings() {
        QMap<QString, QVariant> settings;
        settings["foo"] = "bar";
        settings["fooo"] = "baar";
        return settings;
    }
};
class B : public A {
    static QMap<QString, QVariant> getSettings() {
        QMap<QString, QVariant> settings = A::getSettings();
        settings["foo"] = "bar1";
        return settings;
    }
};

int main(char** /*argv*/, int /*argc*/) {
    qDebug() << A::getSetting("foo");
    qDebug() << A::getSetting("fooo");
    qDebug() << B::getSetting("foo"); //would like "bar1" here
    qDebug() << B::getSetting("fooo");
    return 0;
}

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