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()
    Creates and returns a copy of this object.
    boolean
    equals(Object obj)
    Indicates whether some other object is "equal to" this one.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    Finalization is deprecated and subject to removal in a future release.
    final Class<?>
    getClass()
    Returns the runtime class of this Object.
    int
    hashCode()
    Returns a hash code value for this object.
    final void
    notify()
    Wakes up a single thread that is waiting on this object's monitor.
    final void
    notifyAll()
    Wakes up all threads that are waiting on this object's monitor.
    String
    toString()
    Returns a string representation of the object.
    final void
    wait()
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
    final void
    wait(long timeoutMillis)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
    final void
    wait(long timeoutMillis, int nanos)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

  • 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