cancel

Cancels the user interaction. Call this method to cancel interaction, usually in response to the user clicking the right mouse button while dragging.

commit

Invoked to commit the changes made by the user.

isAllowed

Checks whether the current interaction can be completed at the specified point.

start

This method is invoked in the beginning of the interaction, usually when the user presses the left mouse button over a modification handle.

update

This method is invoked to update the interaction state, usually in response to the user moving the mouse after the modification has started.