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javax.swing.event

Class TreeExpansionEvent

Implemented Interfaces:
Serializable
public class TreeExpansionEvent
extends EventObject
An event used to identify a single path in a tree. The source returned by getSource will be an instance of JTree.

For further documentation and examples see the following sections in The Java Tutorial: How to Write a Tree Expansion Listener and How to Write a Tree-Will-Expand Listener.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeansTM has been added to the java.beans package. Please see XMLEncoder.

See Also:
Serialized Form

Field Summary

protected TreePath
path
Path to the value this event represents.

Fields inherited from class java.util.EventObject

source

Constructor Summary

TreeExpansionEvent(Object source, TreePath path)
Constructs a TreeExpansionEvent object.

Method Summary

TreePath
getPath()
Returns the path to the value that has been expanded/collapsed.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

path

protected TreePath path
Path to the value this event represents.

Constructor Details

TreeExpansionEvent

public TreeExpansionEvent(Object source,
                          TreePath path)
Constructs a TreeExpansionEvent object.
Parameters:
source - the Object that originated the event (typically this)
path - a TreePath object identifying the newly expanded node
Usages and Demos :

View More Examples of TreeExpansionEvent(Object source,TreePath path)
   1:          {
   2:             tee = new TreeExpansionEvent(this, getPath(parent));
   3:             for (TreeWillExpandListener l : listenerList.getListeners(TreeWillExpandListener.class))
   4:         ...
   5:          {
   6:             tee = new TreeExpansionEvent(this, getPath(parent));
   7:             for (TreeWillExpandListener l : listenerList.getListeners(TreeWillExpandListener.class))
   8:             {
   9:                l.treeWillExpand(tee);

View Full Code Here 
   1:    {
   2:       TreeExpansionEvent evt = new TreeExpansionEvent(this, path);
   3:       Object[] obj = listenerList.getListeners(TreeExpansionListener.class);
   4:         ...
   5:       {
   6:          TreeExpansionEvent evt = new TreeExpansionEvent(this, path);
   7:          Object[] obj = listenerList.getListeners(TreeWillExpandListener.class);
   8:         ...
   9:       {
  10:          TreeExpansionEvent evt = new TreeExpansionEvent(this, path);
  11:          Object[] obj = listenerList.getListeners(TreeWillExpandListener.class);

View Full Code Here 
   1:   {
   2:     TreeExpansionEvent event = new TreeExpansionEvent(this, path);
   3:     TreeExpansionListener[] listeners = getTreeExpansionListeners();
   4:         ...
   5:   {
   6:     TreeExpansionEvent event = new TreeExpansionEvent(this, path);
   7:     TreeExpansionListener[] listeners = getTreeExpansionListeners();
   8:         ...
   9:   {
  10:     TreeExpansionEvent event = new TreeExpansionEvent(this, path);
  11:     TreeWillExpandListener[] listeners = getTreeWillExpandListeners();

View Full Code Here 
   1:                 if (event==null)
   2:                     event=new TreeExpansionEvent(this,path);
   3:                 ((TreeExpansionListener)listeners[i+1]).treeExpanded(event);
   4:         ...
   5:                 if (event==null)
   6:                     event=new TreeExpansionEvent(this,path);
   7:                 ((TreeExpansionListener)listeners[i+1]).treeCollapsed(event);
   8:         ...
   9:                 if (event==null)
  10:                     event=new TreeExpansionEvent(this,path);
  11:                 ((TreeWillExpandListener)listeners[i+1]).treeWillExpand(event);

View Full Code Here

Method Details

getPath

public TreePath getPath()
Returns the path to the value that has been expanded/collapsed.
Usages and Demos :

View More Examples of getPath()
   1: 
   2: public void treeWillExpand(TreeExpansionEvent tee) throws ExpandVetoException {
   3:         ...
   4:   MOENodeWrapperA node=(MOENodeWrapperA)tee.getPath().getLastPathComponent();
   5:   node.setExpanded(true);
   6:         ...
   7: }
   8: public void treeWillCollapse(TreeExpansionEvent tee) throws ExpandVetoException {
   9:         ...
  10:   MOENodeWrapperA node=(MOENodeWrapperA)tee.getPath().getLastPathComponent();

View Full Code Here 
   1: import javax.swing.JTree;
   2: import javax.swing.event.TreeExpansionEvent;
   3: import javax.swing.event.TreeExpansionListener;
   4:         ...
   5:     
   6:     public void treeCollapsed(TreeExpansionEvent event) {
   7:         ...
   8:         JobTreeNode node = (JobTreeNode)event.getPath().getLastPathComponent();
   9:         JobTreeNode[] children = node.getChildren();
  10:         ...
  11: 
  12:     public void treeExpanded(TreeExpansionEvent event) {

View Full Code Here 
   1:     public void valueChanged(TreeSelectionEvent ev) {
   2:             TreePath treepath  = ev.getPath();
   3:         TreeNode tnode     = (TreeNode)treepath.getLastPathComponent();
   4:         ...
   5: 
   6:         public void treeCollapsed(TreeExpansionEvent ev) { }
   7: 
   8:         ...
   9:         public void treeExpanded(TreeExpansionEvent ev) {
  10:         ...
  11:         TreePath treepath = ev.getPath();

View Full Code Here 
   1: import javax.swing.*;
   2: import javax.swing.event.TreeExpansionEvent;
   3: import javax.swing.event.TreeWillExpandListener;
   4:         ...
   5: 
   6: public void treeWillExpand(TreeExpansionEvent e) throws ExpandVetoException
   7: {
   8:         ...
   9:     if (e.getPath().getLastPathComponent() instanceof HierarchyProperty.HNode)
  10:     {
  11:         ...
  12:         HierarchyProperty.HNode node = (HierarchyProperty.HNode) e.getPath()

View Full Code Here 
   1: import javax.swing.event.TreeExpansionListener;
   2: import javax.swing.event.TreeExpansionEvent;
   3: import javax.swing.tree.DefaultTreeModel;
   4:         ...
   5: 
   6:       public void treeExpanded(TreeExpansionEvent e) {    
   7:         ...
   8:     TreePath path = e.getPath();
   9:     
  10:         ...
  11: 
  12:     public void treeCollapsed(TreeExpansionEvent e) {

View Full Code Here

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