On Tue, 19 Jul 2016 11:10:26 +0200, Benjamin TERRIER wrote: > * you can't even create ...
As I'm currently working on a library offering Quick Controls with an C++ API ( having a QML API as well ) I already have some experience in what it means. The very first thing you will notice is that the Quick classes available as private or public headers from the Qt Quick core module have never been consequently designed for the C++ use case. Next you will notice, that this module does not follow concepts you would expect, when being used to widgets. This starts with using homebrew notification hooks instead of events, continues with having 2 different object hierarchies and ends with being inconsistent with QGuiApplication. Next you will see, that you don't have a powerful layout system. The existing implementation for QML builds an API using attached properties. But this is only a frontend for QGridLayoutEngine and it is not that much work to write another one, that offers a C++ API ( my version is around 1000 lines of code for Grid/Box/Stack layouts ), that can be used like the QLayout classes. So there is a lot of initial work to be done before you are in the position to start with implementing Quick Controls in C++. But once you have it you can easily outperform the existing QML implementations in terms of instantiation times and memory footprint - not to mention that you are free to decide to have a pure C++ code base. More details about my experiment will be presented at: https:// conf.qtcon.org/en/qtcon/public/events/428 Uwe _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest