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With QML as abstraction layer, we nowadays have a great way to separate the business logic (C++) of our application from the graphical user interface (QtQuick/QtWidgets/Cascades) on top of it. The interface between the two layers is well defined by the meta-object API, which essentially boils down to signals and slots for notifications and invocations, […]

Today I want to talk about the usage of data models in Cascades. As you might know already, Cascades provides the abstract interface bb::cascades::DataModel, which is used by bb::cascades::ListView to retrieve and display arbitrary data. Cascades also provides a couple of convenience classes that implement this DataModel interface, namely ArrayDataModel GroupDataModel QListDataModel XmlDataModel While the […]

Today I’d like to talk a bit about a basic concept of software design: layers. When you design your application (or framework), you should try to define layers of concerns, like storage, business logic and UI. That’s no rocket science and is taught at schools and universities for a couple for years now already. However, […]