jview
Interface ViewportTransferring

All Known Implementing Classes:

AbstractTransferProxy, TransferX

public interface ViewportTransferring

An interface defining capabilities of a component to listen to a viewport selection of an other component and adopting its self viewport depending on the choice made. The simplest thing is a one-to-one transfer, i.e. simply selecting the self-viewport to the outsider's one. More complicated scenarios are possible, if one zooms a UserCoordinates canvas like a data canvas, transforms the zoomed area into physical coordinates and deduces what this implies for the current zoom.

Method Summary

boolean

transferViewport(Object from, Rectangle2D view) If a viewport should be transfered from one object to an other, the object on which the selection occured calls this method on any registered ViewportTransferring instances.

Method Detail

transferViewport

boolean transferViewport(Object from,
                         Rectangle2D view)

If a viewport should be transfered from one object to an other, the object on which the selection occured calls this method on any registered ViewportTransferring instances. The originating object is included to allow the receiver to do non-trivial viewport adjustments. In most cases, the origin will be a UserCoordinates object. The viewport is in natural coordinates, just as selected.