Basic version of ConnectionTreeModel is working.

pglab/ConnectionListModel.h

@@ -10,6 +10,48 @@
 #include "Expected.h"
 #include <QVector>
 
+//#include <QSqlDatabase>
+class QSqlDatabase;
+
+class ConnectionTreeModel : public QAbstractItemModel {
+	Q_OBJECT
+public:
+	enum Columns {
+		Name,
+		Host,
+		Port,
+		User,
+		DbName,
+
+		ColCount
+	};
+
+	ConnectionTreeModel(QObject *parent, QSqlDatabase &db);
+
+	void load();
+
+	QVariant data(const QModelIndex &index, int role) const override;
+
+//	Qt::ItemFlags flags(const QModelIndex &index) const override;
+
+	QVariant headerData(int section, Qt::Orientation orientation,
+		int role = Qt::DisplayRole) const override;
+
+	QModelIndex index(int row, int column,
+		const QModelIndex &parent = QModelIndex()) const override;
+
+	QModelIndex parent(const QModelIndex &index) const override;
+
+	int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+
+	int columnCount(const QModelIndex &parent = QModelIndex()) const override;
+
+private:
+	using Groups = QVector<std::shared_ptr<ConnectionGroup>>;
+
+	QSqlDatabase &m_db;
+	Groups m_groups;
+};
 
 /** \brief Model class for the list of connections.
  *