Package org.eclipse.draw2d
Interface UpdateListener
- All Known Implementing Classes:
- ScrollableThumbnail,- Thumbnail,- UpdateListener.Stub
public interface UpdateListener
An interface used to notify listeners that the listened to object is
 updating.
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Nested Class SummaryNested ClassesModifier and TypeInterfaceDescriptionstatic classAn empty implementation ofUpdateListenerfor convenience.
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Method SummaryModifier and TypeMethodDescriptionvoidnotifyPainting(Rectangle damage, Map<IFigure, Rectangle> dirtyRegions) Notifies the listener that the listened to object is painting.voidNotifies the listener that the listened to object is validating.
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Method Details- 
notifyPaintingNotifies the listener that the listened to object is painting. The damage rectangle may be null or empty. This indicates the dirty regions were clipped or not visible. But for objects such as theThumbnail, notification still needs to occur. The map of dirty regions is passed to allow the listener to determine if it needs to update, for instance when a particular figure is painting.- Parameters:
- damage- The area being painted
- dirtyRegions- a Map of figures to their dirty regions
 
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notifyValidatingvoid notifyValidating()Notifies the listener that the listened to object is validating.
 
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