Leaf « JTree « Java Swing Q&A

1. Adding new leaf to jTree node stackoverflow.com

Let's say, I have this code of a jTree

    JTree jTree = new JTree() ;
    DefaultMutableTreeNode root = new DefaultMutableTreeNode("root") ;
    jTree.setModel( ...

2. JTree: How to select the first leaf stackoverflow.com

I am developing a small desktop application in JAVA using Netbeans. I place a JTree and dynamically populating it. Every thing went fine now i want to achieve the following two ...

3. Setting Leaf in the JTree (Urgent) coderanch.com

Hi, I am having two different type of nodes 1.which are always leaf i.e. can not have children. 2. Which can have children and may be leaf. So i want to distinguish these 2 type of nodes so that the user may know which can have children and which can not. This difference can be either with a color or icon ...

4. Setting Leaf in the JTree coderanch.com

5. nodes with no children are displayed as a leaf nodes in JTree coderanch.com

Hi, I have a JTree with lots of parent nodes and children nodes of the parent nodes.Within one parent node I have many other parent nodes with and without children nodes.The parent nodes without children are displayed as leaf nodes,instead of being displayed as parent nodes itself. I want to display parent nodes as parent nodes only even if it does ...

6. Determining next visible leaf in a JTree coderanch.com

Hi, Given a partially expanded JTree, I'm trying to determine the next visible leaf from the currently selected tree node. This may or may not be a child/sibling of the current node, and could easily have multiple nodes expanded. I have two ideas doing this. Option 1: View the JTree simple as a single columned table, and find the next leaf ...

7. JTree and leaf nodes coderanch.com

Hi, Does anyone out there know how to stop a jtree showing it's leaf nodes. I want to create a menu system, similar to a file explorer, but I don't want the tree to display the child nodes, instead I want these to be displayed in a seperate panel. I have done some searching in the code, and have not been ...

8. Customizing JTree leaf nodes coderanch.com

9. how to set hyperlink to JTree leaf nodes? coderanch.com

public void mouseClicked(MouseEvent e) { JTree tree = (JTree)e.getSource(); TreePath path = tree.getPathForLocation(e.getX(), e.getY()); if (path != null) { Object o = path.getLastPathComponent(); TreeModel model = tree.getModel(); if (model.isLeaf(o)) { // a leaf was clicked; handle it } } } public void mouseMoved(MouseEvent e) { int cursor = Cursor.DEFAULT_CURSOR; JTree tree = (JTree)e.getSource(); TreePath path = tree.getPathForLocation(e.getX(), e.getY()); if (path != ...

10. JTree leaf contents update - problem :( coderanch.com

Hello, I just wrote some code that tries to construct a JTree that represents the contents of a certain directory (in this case "C:/Test Games/"), and it does. I've got a background thread that listenes for consistency changes, and when such occur, it has to update the tree. Because searching for the specific changes would be painful, I delete all the ...

11. JTree reduce indent for leaf node coderanch.com

Don't you have the answer from the other posting you hijacked? Seems to me lack an indent of 0 does what you want. If it doesn't work then you will need to write your own UI. So look at the code to see where those UIManager properties are used and then customize it for your requirements. If you need further help ...

12. How to add a JLabel in any leaf of a JTree coderanch.com

import java.awt.Dimension; import javax.swing.*; import javax.swing.tree.DefaultMutableTreeNode; import javax.swing.tree.DefaultTreeModel; public class JTreeExample { JTree tree; String subMenus[] = {"Menu1","Menu2"}; public JTreeExample(){ JFrame f = new JFrame(); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //f.getContentPane().add(new SplitNodeTest().getContent()); f.setSize(360,300); f.setLocation(200,200); f.setVisible(true); JPanel panel = new JPanel(); f.getContentPane().add(panel); tree = new JTree(); Object obj = new String("MY COMPUTER"); DefaultMutableTreeNode top = new DefaultMutableTreeNode(obj); DefaultTreeModel tree_Model = new DefaultTreeModel(top); tree = new JTree(tree_Model); ...