Eclipse GEF 3.2

## Package org.eclipse.gef.rulers

Interface Summary
RulerChangeListener: `RulerChangeListener`s can be added to `RulerProvider`s to receive notification about changes in the ruler/guide properties.

Class Summary
RulerChangeListener.Stub: Stub for the RulerChangeListener interface.
RulerProvider: This class provides an interface to interact with the ruler/guide feature provided in GEF.

Eclipse GEF 3.2

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