diff -r 7ef03c2b46ab -r 1fa0e1de9f0a src/messagelog.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/messagelog.h	Mon Jun 20 18:40:22 2022 +0300
@@ -0,0 +1,23 @@
+#include <QAbstractTableModel>
+#include "basics.h"
+
+class MessageLog final : public QAbstractTableModel
+{
+	Q_OBJECT
+	std::vector<Message> messages;
+public:
+	enum Column {
+		TimeColumn,
+		MessageColumn,
+	};
+	static constexpr int NUM_COLUMNS = int(MessageColumn) + 1;
+	explicit MessageLog(QObject *parent = nullptr);
+	Q_SLOT void addMessage(const Message& message);
+
+	// QAbstractItemModel interface
+public:
+	QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
+	int rowCount(const QModelIndex& parent) const override;
+	int columnCount(const QModelIndex& parent) const override;
+	QVariant data(const QModelIndex& index, int role) const override;
+};