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Java Standard Edition (SE)

AncestorListener


javax.swing.event

Interface AncestorListener

  • All Superinterfaces:
    EventListener


    public interface AncestorListener
    extends EventListener
    AncestorListener Interface to support notification when changes occur to a JComponent or one of its ancestors. These include movement and when the component becomes visible or invisible, either by the setVisible() method or by being added or removed from the component hierarchy.
    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method and Description
      void ancestorAdded(AncestorEvent event)
      Called when the source or one of its ancestors is made visible either by setVisible(true) being called or by its being added to the component hierarchy.
      void ancestorMoved(AncestorEvent event)
      Called when either the source or one of its ancestors is moved.
      void ancestorRemoved(AncestorEvent event)
      Called when the source or one of its ancestors is made invisible either by setVisible(false) being called or by its being remove from the component hierarchy.
    • Method Detail

      • ancestorAdded

        void ancestorAdded(AncestorEvent event)
        Called when the source or one of its ancestors is made visible either by setVisible(true) being called or by its being added to the component hierarchy. The method is only called if the source has actually become visible. For this to be true all its parents must be visible and it must be in a hierarchy rooted at a Window
      • ancestorRemoved

        void ancestorRemoved(AncestorEvent event)
        Called when the source or one of its ancestors is made invisible either by setVisible(false) being called or by its being remove from the component hierarchy. The method is only called if the source has actually become invisible. For this to be true at least one of its parents must by invisible or it is not in a hierarchy rooted at a Window
      • ancestorMoved

        void ancestorMoved(AncestorEvent event)
        Called when either the source or one of its ancestors is moved.


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