how does Qt determine a dockwidget is ready to dock

[ravas]

I'm wondering how the algorithm for docking works.
Is it based on cursor position or an edge of the dockwidget?

[Joel Bodenmann]

@ravas As the "docking animation" only shows up as soon as the mouse cursor (that currently drags a dockable widget) is inside the dockable area I assume that it is based on the cursor position and not the edge of the dockable widget.

Edit: Just figured that I might have given some wrong information. It looks like it just goes for the nearest dockable area when the dockable widget that is currently being dragged around is within a certain distance.