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Answer 1

+2 A:

A four dimensional structure is notoriously hard to visualize. But how about some small loops?

typedef QMap<QString, QVariant> T1;
typedef QMap<QString, T1> T2;
typedef QMap<QString, T2> T3;

foreach( T3 i, dep ) {
    cout << "******" << i.key() << "*******" << endl << endl;
    foreach ( T2 j, i.value() ) {
        cout << j.key() << ":" << endl;
        foreach ( T3 k, j.value() ) {
            cout << k.key() << "= ";
            foreach ( QVariant l, k.value() ) {
                cout << l.key() << ": " << l.value() << " ";
            }
            cout << endl;
        }
    }
}

Using namespace std, of course. Add in setw() as you like. Hope you get the idea.

drhirsch 2009-11-18 18:50:42

Answer 2

+2 A:

This one is for n-dimensions and will use the standard qDebug output for known types:

template<class NonMap>
struct Print
{
    static void print(const QString& tabs, const NonMap& value) 
    {
        qDebug() << tabs << value;
    }
};

template <class Key, class ValueType >
struct Print<class QMap<Key, ValueType> >
{
    static void print(const QString& tabs, const QMap< Key, ValueType>& map )
    {
        const QString extraTab = tabs + "\t";
        QMapIterator<Key, ValueType> iterator(map);
        while(iterator.hasNext())
        {
            iterator.next();
            qDebug() << tabs << iterator.key(); 
            Print<ValueType>::print(extraTab, iterator.value());
        }
    }
};

template<class Type>
void printMe(const Type& type )
{
    Print<Type>::print("", type);
};

TimW 2009-11-18 21:11:21

Impressive use of templates and recursion :)

Milan Gardian 2010-06-18 18:23:16

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Format the output of qDebug for QMaps

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