ZScopedMap.h

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#ifndef ZScopedMap_H
#define ZScopedMap_H

#include <QObject>
#include <QVariant>
#include "zglobal.h"

namespace Zbl
{

class ZScopedMap : public QObject
{
    Q_OBJECT
public:
    explicit ZScopedMap(QObject *parent = 0);


    static void registerType();


    Q_PROPERTY(int size READ getSize)

    
    Q_PROPERTY(QObject* outerScope READ getOuterScope WRITE setOuterScope)

    Q_PROPERTY(const QString& initializer READ getInitializer WRITE loadJSON)


    // TBD: properties: outerScope, JSON initializer string
    
    // TDB: methods: to/from JSON object, connectObject method


    int getSize() const;

    Q_INVOKABLE bool has(const QString& key) const;

    Q_INVOKABLE QVariant get(const QString& key) const;

    Q_INVOKABLE QVariantList keys() const;

    Q_INVOKABLE void invalidate();

    Q_INVOKABLE QString toJSON() const;


    // TBD: add insertScope function to insert a scope between this scope and
    // its outer scope. And inverse removeScope function.

signals:


    void itemChanged(const QString key, QVariant value);

    void mapChanged(QVariantMap newValues);

    void reset();

public slots:

    void set(const QString& key, const QJsonValue& value);



    bool setMap(QVariantMap map);

    bool setScopedMap(QObject* map);

    bool remove(const QString& key);


    void clear();


    void loadJSON(const QString& jsonString);


protected:

    ZBL_DECLARE_LOGGED_OBJECT

    QString getInitializer() const;

    void setOuterScope(QObject* outerScope);

    QObject* getOuterScope();


    bool isValidType(const QJsonValue& value);

    bool isValidType(const QVariant& value);

    bool setValue(QVariantMap& map, const QString& key, QVariant value, bool emitSignal=false);


    ZScopedMap* m_outerScope;


    QVariantMap m_map;

    QString m_JSON;

};


} // Zbl

#endif // ZScopedMap_H