Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
I created custom QML component that inherited from QQuickPaintedItem and draw it in a paint function. But in Design preview my component just an invisible rectangle. How can I add behaviour for this situation?