Class BasicTreeUI.TreeExpansionHandler

java.lang.Object
javax.swing.plaf.basic.BasicTreeUI.TreeExpansionHandler
All Implemented Interfaces:
EventListener, TreeExpansionListener
Enclosing class:
BasicTreeUI
public class BasicTreeUI.TreeExpansionHandler extends Object implements TreeExpansionListener
Updates the TreeState in response to nodes expanding/collapsing.

  • Constructor Summary

    Constructors
    Constructor
    Description
    TreeExpansionHandler()
    Constructs a TreeExpansionHandler.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    treeCollapsed(TreeExpansionEvent event)
    Called whenever an item in the tree has been collapsed.
    void
    treeExpanded(TreeExpansionEvent event)
    Called whenever an item in the tree has been expanded.

    Methods declared in class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
    boolean
    equals(Object o)
    Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    May cause performance issues, deadlocks and hangs.
    final Class<? extends Object>
    getClass()
    Answers the unique instance of java.lang.Class which represents the class of the receiver.
    int
    hashCode()
    Answers an integer hash code for the receiver.
    final void
    notify()
    Causes one thread which is waiting on the receiver to be made ready to run.
    final void
    notifyAll()
    Causes all threads which are waiting on the receiver to be made ready to run.
    String
    toString()
    Answers a string containing a concise, human-readable description of the receiver.
    final void
    wait()
    Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by notify or notifyAll).
    final void
    wait(long time)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.
    final void
    wait(long time, int frac)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.

  • Constructor Details

    • TreeExpansionHandler

      public TreeExpansionHandler()
      Constructs a TreeExpansionHandler.

  • Method Details

    • treeExpanded

      public void treeExpanded(TreeExpansionEvent event)
      Called whenever an item in the tree has been expanded.
      Specified by:
      treeExpanded in interface TreeExpansionListener
      Parameters:
      event - a TreeExpansionEvent containing a TreePath object for the expanded node

    • treeCollapsed

      public void treeCollapsed(TreeExpansionEvent event)
      Called whenever an item in the tree has been collapsed.
      Specified by:
      treeCollapsed in interface TreeExpansionListener
      Parameters:
      event - a TreeExpansionEvent containing a TreePath object for the collapsed node