connectionwidget.h Example File
demos/sqlbrowser/connectionwidget.h
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    #ifndef CONNECTIONWIDGET_H
    #define CONNECTIONWIDGET_H
    #include <QWidget>
    class QTreeWidget;
    class QTreeWidgetItem;
    class QSqlDatabase;
    class QMenu;
    class ConnectionWidget: public QWidget
    {
        Q_OBJECT
    public:
        ConnectionWidget(QWidget *parent = 0);
        virtual ~ConnectionWidget();
        QSqlDatabase currentDatabase() const;
    signals:
        void tableActivated(const QString &table);
        void metaDataRequested(const QString &tableName);
    public slots:
        void refresh();
        void showMetaData();
        void on_tree_itemActivated(QTreeWidgetItem *item, int column);
        void on_tree_currentItemChanged(QTreeWidgetItem *current, QTreeWidgetItem *previous);
    private:
        void setActive(QTreeWidgetItem *);
        QTreeWidget *tree;
        QAction *metaDataAction;
        QString activeDb;
    };
    #endif