Making multithreading easy. Qt provides thread support in the form of platform-independent threading classes, a thread-safe way of posting events, and signal-slot connections across threads.

Core AppDebugMessageHandler - Custom debug/message handler class to work in conjunction with qDebug() family of functions.; Item Models GroupedItemsProxyModel - A proxy model (QIdentityProxyModel ...

Qt, naturally, has model view to manage the data and its presentation. According to some, Qt is misusing the model view terminology and more correct naming would be Data -> Model; Model -> ViewModel; ...