Interface UpdateListener

All Known Implementing Classes:
ScrollableThumbnail, Thumbnail

public interface UpdateListener
An interface used to notify listeners that the listened to object is updating.
  • Method Summary

    Modifier and Type
    Method
    Description
    void
    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.
  • Method Details

    • notifyPainting

      void notifyPainting(Rectangle damage, Map<IFigure,Rectangle> dirtyRegions)
      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 the Thumbnail, 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
    • notifyValidating

      void notifyValidating()
      Notifies the listener that the listened to object is validating.