I see. In this case it might get cumbersome to customize QtQuick elements to your preference, and drawing each item in a separate canvas will hurt performance.
Perhaps you should take a closer look at the graph scene of QtQuick 5 [qt-project.org]. There is a fine example here [qt-project.org].
Any type of interaction can be theoretically implemented, as the underlying element you will use in this approach is QQuickItem [qt-project.org] with a couple of virtual MouseEvent functions.
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