Change icon of a non selected node in JTree

Hello
I have a swing application contening a JTree.
I'd like to know how to change the icon of a non selected node in my tree. I have the information about the node and its path. I try to change userObject information and the icon of the node with the setIcon of (DefaultMutableTreeNode), and reload the node (DefaultTreeModel) but it doesn't work.
Do I have to set the change in my CellRenderer ?
Any advice will be welcome
Anne

If you carefully look at the java tutorial tree, the change is made for all the leaf icon. What I want is to change the icon of a not selected node of my tree while I do other stuff with the other nodes like select, display their contents, drag them ...
the operation of a not selected node is independant from the selection in the tree.
So I still ask how to force a node to reload and take care of the change of his icon.
Anne

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How to show only all children of selected node in JTree??

Dear friends:
I have Two Panels, PA and PB,
PA has a Jtree as code below, and PB listens to PA,
I hope to do following,
If I select a node called A in PA, then Node A's all children such as A1, A2, A3 will be displayed in PB, but not display A1, A2, A3's children such as A3 has C1, C2, C3, C4 & C5, until I select A3 then PB will display only all A3's children: C1, C2, C3, C4 & C5;
i.e, only populate each ONE level of children of Node A or any node I select, not its grandchildren and its grand-grand children;
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[1]. PA panel code:
package com.atest;
     import java.awt.BorderLayout;
     import java.awt.event.MouseAdapter;
     import java.awt.event.MouseEvent;
     import java.util.Enumeration;
     import java.awt.Dimension;
     import javax.swing.JFrame;
     import javax.swing.JPanel;
     import javax.swing.JScrollPane;
     import javax.swing.JTextField;
     import javax.swing.JTree;
     import javax.swing.tree.DefaultMutableTreeNode;
     import javax.swing.tree.TreeModel;
     import javax.swing.tree.TreePath;
     public class DefaultMutableTreeMain extends JPanel {
     protected DefaultMutableTreeNode    top = new DefaultMutableTreeNode("Options");
     protected DefaultMutableTreeNode      selectedNode = null;
     protected final JTree tree;
     protected final JTextField jtf;
    protected Enumeration      vEnum = null;
     private      TreeModel                m;
     protected DefaultMutableTreeNode      getDefaultMutableTreeNode() {
          //textArea.getText();
               return selectedNode;
     protected DefaultMutableTreeNode setDefaultMutableTreeNode(DefaultMutableTreeNode tt) {
          //textArea.getText();
               selectedNode = tt;
               return selectedNode;
     protected TreeModel getJTModel() {
          //textArea.getText();
               return m;
     protected TreeModel setJTModel(TreeModel ta) {
               m = ta;
               return m;
       public DefaultMutableTreeMain() {
         setSize(300,300);
         setLayout(new BorderLayout());
         DefaultMutableTreeNode a = new DefaultMutableTreeNode("A");
         top.add(a);
         DefaultMutableTreeNode a1 = new DefaultMutableTreeNode("A1");
         a.add(a1);
         DefaultMutableTreeNode a2 = new DefaultMutableTreeNode("A2");
         a.add(a2);
         DefaultMutableTreeNode a3 = new DefaultMutableTreeNode("A3");
         a.add(a3);
         DefaultMutableTreeNode b = new DefaultMutableTreeNode("B");
         top.add(b);
         DefaultMutableTreeNode b1 = new DefaultMutableTreeNode("B1");
         b.add(b1);
         DefaultMutableTreeNode b2 = new DefaultMutableTreeNode("B2");
         b.add(b2);
         DefaultMutableTreeNode b3 = new DefaultMutableTreeNode("B3");
         b.add(b3);
         DefaultMutableTreeNode c = new DefaultMutableTreeNode("C");
         a3.add(c);
         DefaultMutableTreeNode c1 = new DefaultMutableTreeNode("C1");
         c.add(c1);
         DefaultMutableTreeNode c2 = new DefaultMutableTreeNode("C2");
         c.add(c2);
         DefaultMutableTreeNode c3 = new DefaultMutableTreeNode("C3");
         c.add(c3);
         DefaultMutableTreeNode c4 = new DefaultMutableTreeNode("C4");
         c.add(c4);
         DefaultMutableTreeNode c5 = new DefaultMutableTreeNode("C5");
         c.add(c5);
         tree = new JTree(top);
         JScrollPane jsp = new JScrollPane(tree);
         jsp.setPreferredSize(new Dimension(400,300));
         add(jsp, BorderLayout.CENTER);
         jtf = new JTextField("", 20);
         add(jtf, BorderLayout.SOUTH);
           tree.addMouseListener(new MouseAdapter() {
           public void mouseClicked(MouseEvent me) {
              TreePath   path = tree.getSelectionPath();
              DefaultMutableTreeNode      selectedNode = (DefaultMutableTreeNode)path.getLastPathComponent();
             TreePath tp = tree.getPathForLocation(me.getX(), me.getY());
             setDefaultMutableTreeNode(selectedNode);
                 System.out.println("Current node selected is (tp.toString()=" + tp.toString());
                 System.out.println("Current node selected is getDefaultMutableTreeNode()=" + getDefaultMutableTreeNode());
             if (tp != null){
                 jtf.setText(tp.toString());
                  System.out.println("It Has Children as selectedNode.getChildCount()= " + selectedNode.getChildCount());
                        Enumeration vEnum = selectedNode.children();
                            int i = 0;
                            while(vEnum.hasMoreElements()){
                                System.out.println("2 selectedNode = " + path.toString() + " has " + i++ + " Children in vEnum.nextElement(" + i + ") = " + vEnum.nextElement());
             else
               jtf.setText("");
       public static void main(String[] args) {
         JFrame frame = new JFrame();
         frame.getContentPane().add(new DefaultMutableTreeMain());
         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         frame.setSize(400, 400);
         frame.setVisible(true);
     }[2]. PB Panel code
package com.atest;
import java.awt.BorderLayout;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.JPanel;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.*;
import javax.swing.JButton;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.TreePath;
public class DefaultMutableTreeSub extends JPanel implements java.io.Serializable{
private JButton removeButton;
private JButton addButton;
JTree tree;
private TreeModel      m;
protected TreeDragSource ds;
protected TreeDropTarget dt;
protected TreeModel getJTModel() {
          //textArea.getText();
               return m;
protected TreeModel setJTModel(TreeModel ta) {
               m = ta;
               return m;
protected DefaultTreeModel model;
protected DefaultMutableTreeNode rootNode;
DefaultMutableTreeMain dmm = null;
JPanel inputPanel = new JPanel();
public JPanel SLTreeDNDEditableDynamic(DefaultMutableTreeMain tdnd ) {
    //super("Rearrangeable Tree");
    setSize(400,450);
    dmm = tdnd;
         setLayout(new BorderLayout());
         inputPanel.setLayout(new BorderLayout());
         JPanel outputPanel = new JPanel();
         System.out.println("Sub selectedNode tdnd= " + tdnd);
         tdnd.tree.addTreeSelectionListener(new TreeSelectionListener(){
              public void valueChanged(TreeSelectionEvent evt){
              TreePath[] paths = evt.getPaths();
              TreePath   path = dmm.tree.getSelectionPath();
              DefaultMutableTreeNode      selectedNode = (DefaultMutableTreeNode)path.getLastPathComponent();
             DefaultMutableTreeNode itemNode = dmm.getDefaultMutableTreeNode();
                 System.out.println("Sub node selected is dmm.getDefaultMutableTreeNode()=" + dmm.getDefaultMutableTreeNode());
              model = new DefaultTreeModel(itemNode);
              tree = new JTree(model);
              System.out.println("Sub selectedNode paths= " + paths);
              System.out.println("Sub selectedNode path= " + path);
              System.out.println("Sub selectedNode = " + selectedNode);
              System.out.println("Sub itemNode = " + itemNode);
              tree.putClientProperty("JTree.lineStyle", "Angled");
              tree.setRootVisible(true);
               inputPanel.add(new JScrollPane(tree),BorderLayout.CENTER);
         return inputPanel;
     public DefaultMutableTreeSub() {
          super();
}thanks
sunny

Thanks so much, I use your code and import followig:
import java.util.ArrayList;
import java.awt.List;
but
private static List<Object> getChildNodes(JTree j) {
     Object parent = j.getLastSelectedPathComponent();
     int childNodeCount = j.getModel().getChildCount(parent);
     List<Object> results = new ArrayList()<Object>;
     for (i = 0; i < childNodeCount; i++) {
          results.add(parent, i);
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here List<Object> and ArrayList()<Object> show red,
Is my JDK version problem??
my one is JKD
C:\temp\swing>java -version
java version "1.4.2_08"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_08-b03)
Java HotSpot(TM) Client VM (build 1.4.2_08-b03, mixed mode)
Error as follows:
C:\temp\swing>javac DefaultMutableTreeSub.java
DefaultMutableTreeSub.java:38: <identifier> expected
private static List<Object> getChildNodes(JTree j) {
^
1 error
any idea??
Thanks

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import java.awt.Color;
import java.awt.Component;
import java.util.Enumeration;
import java.util.NoSuchElementException;
import java.util.Vector;
import javax.swing.ImageIcon;
import javax.swing.JTree;
import javax.swing.event.TreeExpansionEvent;
import javax.swing.event.TreeExpansionListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreeNode;
import javax.swing.tree.TreePath;
public class TreeView{
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     public static ImageIcon SelIcon;
    public static String[] name= new String[8];
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        top = new DefaultMutableTreeNode("Diagnostics");
        this.frameColor=BackColor;
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         if (SelIcon == null)
             System.err.println("Tutorial icon missing; using default.");
         NoTSelIcon = createImageIcon("../Resource/Images/NotSelc.gif");
           if (NoTSelIcon == null)
             System.err.println("Tutorial icon missing; using default.");
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            //Create the nodes.
             createNodes(top);
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        tree = new JTree(top);
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        //Treeselction listener
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        tree.addTreeSelectionListener(hObject);
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        tree.addTreeExpansionListener(hObjectExpan);
//       tree.getSelectionModel().setSelectionMode(TreeSelectionModel.DISCONTIGUOUS_TREE_SELECTION);
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             DefaultMutableTreeNode SubCategory = null;
             DefaultMutableTreeNode SubCategoryBasee = null;
             DefaultMutableTreeNode SubSubCategoryBasee = null;
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              //return imcon;
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                 return new ImageIcon(imgURL);
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                 System.err.println("Couldn't find file: " + path);
                 return null;
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                Enumeration Enchilds=Selnode.children();//ENUMRATE ALL CHILDS FOR THIS NODE
             if (Enchilds != null)
                  while (Enchilds.hasMoreElements())
                       newnode=(DefaultMutableTreeNode)Enchilds.nextElement();
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             int n = includeInitialNode ? 1 : 0;
             for (int i = 0; i < model.getChildCount(node); i ++)
                 n += getNodeCountBelow(model, model.getChild(node, i), true);
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import java.awt.Color;
import java.awt.Component;
import java.util.Enumeration;
import java.util.NoSuchElementException;
import javax.swing.Icon;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
public class IconRenderer extends DefaultTreeCellRenderer {
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     Icon NotSelectedIcon;
     Color BackgroundColor;
     boolean Selected=false;
     boolean Leaf=false;
     boolean IsItaChild=false;
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         super.getTreeCellRendererComponent(tree, value, sel,expanded, leaf, row,hasFocus);
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}my problem is :
when i select a node the the method "getTreeCellRendererComponent"
start to run on the entire tree from buttom to top and than from top to buttom.
for me it waste of time because if has say 100 nodes it wont botthers me.
but i have 20000 nodes and more its take a time.
and for all this nodes i have to make compares.
is there a way to force the DefaultTreeCellRenderer to not run the entire tree???
Thanks

You need to make sure that your TreeModel interprets your group nodes to be non-leaf nodes (one of the methods in the TreeModel interface is called isLeaf). If you are using a DefaultTreeModel with DefaultMutableTreeNode objects, you can use the askAllowsChildren property of DefaultTreeModel and the allowsChildren property of DefaultMutableTreeNode to control this. See the API for more details:
http://java.sun.com/j2se/1.4.2/docs/api/javax/swing/tree/DefaultTreeModel.html
http://java.sun.com/j2se/1.4.2/docs/api/javax/swing/tree/DefaultMutableTreeNode.html

Icons on desktop and selections on all menus changed to AAAAAAAA

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The programs and files all work correctly.
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[Why did all of my files and more switch to a AAAA name|http://discussions.apple.com/message.jspa?messageID=9216233#9216233]
[Menu fonts all turn into boxed capital "A"s|http://discussions.apple.com/thread.jspa?messageID=4395251&#4395251]

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public class CustomCellRenderer
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private ImageIcon          greenfolderImage;
private ImageIcon          bluefolderImage;
private ImageIcon          redfolderImage;
private ImageIcon          whitefolderImage;
private boolean               bSelected;
boolean logfileDeleted;
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I need to change tree cell render on particular node when it is selected.

actually the treecell change its icon when it is selected. yhe other cell doesnot changed its icon

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Component getTreeCellRendererComponent(JTree tree,
                                       Object value,
                                       boolean selected,
                                       boolean expanded,
                                       boolean leaf,
                                       int row,
                                       boolean hasFocus)
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Hi,
I created region of style hGrid (ID HGridRN).
Under HGridRN I created region of style tree (ID TreeRN).
Under TreeRN I have members and I want to set some dynamic property for nodeDef2 member.
HGridRN
__TreeRN
____members
______nodeDef1
______childNode1
________nodeDef2 <- I want dynamic icon on this node
________childNode2
I try to use next sequence of statements:
OAHGridBean hGridBean = (OAHGridBean)webBean.findIndexedChildRecursive("HGridRN");
OAWebBean treeBean = hGridBean.findChildRecursive("TreeRN");
*if (treeBean != null) {*
*..OATreeDefinitionBean nodeDef2 = (OATreeDefinitionBean)treeBean.findChildRecursive("nodeDef2");*
*..nodeDef2.setAttributeValue(ICON_ATTR, new OADataBoundValueViewObject(nodeDef2, "NodeIconAttr", "ComplectVO1"));*
Setting ICON_ATTR attribute doesn't change the icon in hgrid.
If fact I can even write nodeDef2.setRendered(false); but the node still exists in UI.
How to get reference to nodeDef2?
Edited by: user12086842 on 02.01.2013 5:51

Hi,
It looks like, that yout context node V_HOME.1 has no elements ( = no data ), try to fill your context node by some data ( by supply method for example). Or you can try change cardinality of your V_HOME.1 node to 1..n.
Regards Jiri

Context Mapping for Non-Singleton Node

Hi ,
I have following context structure
Node_A
|     attr 1
|________ Node_B
                              attr2
                              attr3
Node_B is the child of Node_A. NOde_B has attributes attr2 and attr3.
Node_B is a Non SIngleton Node.
Node_B is mapped to Node_View of the View Controller.
Node_A had 2 elements. Initially Element 1 is the Lead selection Element for Node A. I get the reference for Node_B using the Lead Selection Path
NodeA_element1 = Node_A->GET_ELEMENT( ).
Node_B = NodeA_element1->GET_CHILD_NODE( 'NODE_B' ).
Node_B is filled with elements, lets say attr2 = 'Dallas', attr3 = 'Detroit'
Node_View shows the values Dallas and Detrait since its mapped to Node_B
Now the Lead selection of Node_A changes to 2.
I again gett he reference for NOde_B usign the Lead Selection Path (index 2)
NodeA_element2 = Node_A->GET_ELEMENT( ).
Node_B = NodeA_element2->GET_CHILD_NODE( 'NODE_B' ).
Node_B is now filled with, lets say attr2 = 'Mexico', attr3 = 'Canada'
Since element 2 is Lead selection for Node A, now, and NodeB is mapped to Node_View, I expect the contents of Node_View to be attr2 = 'Mexico', attr3 = 'Canada' since this is along the Lead Selection of Node_A
But it stays attr2 = 'Dallas', attr3 = 'Detroit'
So in a nut shell, the Context Mapping of the Non Singleton Node DOES NOT map the Lead selection Path when its parent , changes in Lead Selection.
Is this a BUG ?
Thanks

Hi Anand,
There is no bug. See when you are saying
"Node_B is now filled with, lets say attr2 = 'Mexico', attr3 = 'Canada' "
I am just not sure how you have filled the data in node B. Because the way u populate node data that way only you can get the data. The way you want to get data you must populate data in this way:
1. Get Node A instance let say in lv_node_A.
2. Get Node A element instance (lead selection) in your case lets say in lv_elem_A.
3. Now get node B instance by lv_elem_A->get_child_node( 'B' ) lets say in lv_node_B.
4. Create element of lv_node_B and bind it to the node B and also populate the value of attributes.
Repeat the steps as per your requirement. Also Singleton and Non singleton has nothing to do with this it is all about how the instances will be manged in the memory.
Look at this sample code and will help you while populating data in nested nodes:
    DATA lo_nd_a TYPE REF TO if_wd_context_node.
    DATA lo_el_a TYPE REF TO if_wd_context_element.
    DATA lo_nd_b TYPE REF TO if_wd_context_node.
    DATA lo_el_b TYPE REF TO if_wd_context_element.
    DATA ls_a TYPE wd_this->element_a.
    DATA lv_test LIKE ls_a-test.
    data lv_btest type string.
navigate from <CONTEXT> to <A> via lead selection
    lo_nd_a = wd_context->get_child_node( name = wd_this->wdctx_a ).
@TODO handle not set lead selection
    IF lo_nd_a IS INITIAL.
    ENDIF.
    data count type c.
    data count_i type i value 1.
    do 2 times.
      lo_el_a = lo_nd_a->create_element( ).
      lo_el_a->set_attribute(
      EXPORTING
        name = `TEST`
        value = count_i ).
      lo_nd_a->bind_element( new_item = lo_el_a
                             SET_INITIAL_ELEMENTS = abap_false ).
      lo_nd_b = lo_el_a->get_child_node( 'B' ).
      lo_el_b = lo_nd_b->create_element( ).
      move count_i to count.
      concatenate count 'in node b' into lv_btest.
      lo_el_b->set_attribute(
      EXPORTING
        name = `BTEST`
        value = lv_btest ).
      lo_nd_b->bind_element( new_item = lo_el_b
                             SET_INITIAL_ELEMENTS = abap_false ).
    count_i = count_i + 1.
    enddo.
This code will set value 1 and 2 in node A's test attribute. and on change of lead selection between 1 and 2 it will show value of attribute BTEST in node B as 1 in node B and 2 in node B...
Regards,
Neha

Change icon of a non selected node in JTree

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