Hello! On Mon, Mar 5, 2012 at 7:39 PM, BRM <[email protected]> wrote: > > As I have not yet touched QML, and there are many on this list who have, what > you recommend? > Would it be worth trying to do this in QML - either #2 or #3 - or should I > just stick to #1? >
You could try and use pure QML (e.g. have QML elements of a Point and rest of your entities) abstraction and do a test run if speed is what's important in populating thousands of items. I would guess that drawing inside a QML View will behave and have the same constraints as drawing inside a QWidget, perhaps with some performance difference depending on the complexity of your drawing if you stick to high level item (complex shapes as custom elements themselves) but if you implement it yourself you might need to re-implement a translation layer from highlevel -> geomtric shapes -> back to low level drawing and and profiling and perfecting your QML should prove much more beneficial. QML abstraction will give you the enormous (in my experience) benefit of close to effortless reusable components, and making the "drawing" process close to 'code-free' , real nicety when you add more overlays and detail perhaps in the future, or base more advanced display items on what you already have, or use this overlaying and layers in many other apps you might want to develop further (again, in *my* experience, with less hassle than using QWidget code) , and be able to use QML's cool fluidity and relatively easy to achieve display and device scaling and fit, and.. and... (well you got it, I love QML ;). Eventually, I've seen people here make their QML become very performant with the suitable know how and I'm sure you could find help if you run into issues. The important thing is to try and experiment with your data set before you invest into switching technologies, a good approach to follow before any major rewrite! Hope this helps, -Sivan _______________________________________________ Interest mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/interest
