Qt Widgets to Qt Quick, An Application Journey Part 4

The final part of a four-part series on migrating a Qt Widgets application to Qt Quick. It covers completing the MVP architecture transition by moving remaining business logic into proxy classes, then adding a Qt Quick GUI on top of the established proxies. The QML-based Window integrates with PageProxy in a way that mirrors the original Qt Widgets setup. Both GUIs can coexist during transition, giving teams flexibility to migrate at their own pace. The post concludes with a 7-step migration checklist and notes that adopting MVP is valuable even for teams staying with Qt Widgets, as it improves separation of concerns and testability.