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Question
How to enable mouse-wheel interaction in JViews graphs?
Answer
In JViews, the classes IlvJScrollManagerView and IlvScrollManagerView are panels containing IlvManagerView objects and two scroll bars. The scroll bars help translate the view of the manager. However, IlvJScrollManagerView and IlvScrollManagerView do not implement the mouse-wheel scrolling feature by default.
Although JViews 6.0 and earlier does not handle the mouse wheel events, you can leverage the Java API for mouse wheel events, available since JDK 1.4 and handle mouse wheel events yourself.
In JViews 6.5 or newer, there are methods for translating the mouse wheel motion into scrolling: method setWheelScrollingEnabled in the classes IlvJScrollManagerView and IlvScrollManagerView. Similarly, there is a method for zooming as a response to mouse wheel events: method setWheelZoomingEnabled in class IlvManagerView.
