Eclipse GEF and Draw2d Plug-in Developer Guide (Galileo) - AncestorListener (Eclipse Draw2d API Specification)

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Eclipse Draw2d
3.3

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org.eclipse.draw2d
Interface AncestorListener

All Known Implementing Classes:: AbstractConnectionAnchor, AncestorListener.Stub

public interface AncestorListener

Classes which implement this interface provide methods to respond to changes in the ancestor properties of a Figure.

Instances of this class can be added as listeners to a figure using the addAncestorListener method and removed using the removeAncestoreListener method. When the parent chain of the figure being observed changes or moves, the listener will be notified appropriately.

Nested Class Summary

static class AncestorListener.Stub
          An empty implementation of AncestorListener for convenience.

Method Summary

void ancestorAdded ( IFigure ancestor)
          Called when an ancestor has been added into the listening figure's hierarchy.

void ancestorMoved ( IFigure ancestor)
          Called when an ancestor has moved to a new location.

void ancestorRemoved ( IFigure ancestor)
          Called when an ancestor has been removed from the listening figure's hierarchy.

Method Detail

ancestorAdded

public void ancestorAdded(
IFigure ancestor)

Called when an ancestor has been added into the listening figure's hierarchy.

Parameters:: ancestor - The ancestor that was added

ancestorMoved

public void ancestorMoved(
IFigure ancestor)

Called when an ancestor has moved to a new location.

Parameters:: ancestor - The ancestor that has moved

ancestorRemoved

public void ancestorRemoved(
IFigure ancestor)

Called when an ancestor has been removed from the listening figure's hierarchy.

Parameters:: ancestor - The ancestor that has been removed