In such situations it is desirable that the GUI control detect this and institute a scroll operation in order to make obscured region(s) visible to the user. This feature is known as autoscrolling.
If a GUI control is both an active
and is also scrollable, it
can receive notifications of autoscrolling gestures by the user from
the DnD system by implementing this interface.
An autoscrolling gesture is initiated by the user by keeping the drag
cursor motionless with a border region of the
referred to as
the "autoscrolling region", for a predefined period of time, this will
result in repeated scroll requests to the
until the drag
Cursor resumes its motion.
getAutoscrollInsetsInsets getAutoscrollInsets()This method returns the
Insetsdescribing the autoscrolling region or border relative to the geometry of the implementing Component.
This value is read once by the
DropTargetupon entry of the drag
Cursorinto the associated
- the Insets
autoscrollvoid autoscroll(Point cursorLocn)notify the
Pointindicating the location of the cursor that triggered this operation.