Package org.eclipse.draw2d
Interface UpdateListener
- All Known Implementing Classes:
ScrollableThumbnail
,Thumbnail
public interface UpdateListener
An interface used to notify listeners that the listened to object is
updating.
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Method Summary
Modifier and TypeMethodDescriptionvoid
notifyPainting
(Rectangle damage, Map<IFigure, Rectangle> dirtyRegions) Notifies the listener that the listened to object is painting.void
Notifies the listener that the listened to object is validating.
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Method Details
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notifyPainting
Notifies 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 painteddirtyRegions
- a Map of figures to their dirty regions
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notifyValidating
void notifyValidating()Notifies the listener that the listened to object is validating.
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