How to change style (color, font) of a single JTree node

java swing drag-and-drop jtree renderer
soumitra chatterjee picture soumitra chatterjee · Apr 11, 2012 · Viewed 12.4k times · Source

I have two JTree in two panels in a JFrame. I want to change the style(color and font) of nodes on drag and drop from one tree to the other.Please provide me a way to change the color of a JTree node permanently.

enter image description here

Answer

ControlAltDel picture ControlAltDel · Apr 11, 2012

To start, you will need to have a data object that can handle style and color. You could subclass DefaultMutableTreeNode and add these data items with getts and setters

Then you'd need to create a custom TreeCellRenderer. I recommend extending DefaultTreeCellRenderer, and in the overridden handler, checking for your custom class, and modifying the JLabel output to use the Font and Color if these values are set

Related questions

Drag and Drop nodes in JTree

I am having difficulty creating a JTree that allows the nodes to be reorganized by dragging and dropping them in the JTree. This seems like it should be relatively simple. I have looked at examples online, but I can not …

Read More
How can I use Drag-and-Drop in Swing to get file path?

I have a JTextField in my swing application that holds the file path of a file selected to be used. Currently I have a JFileChooser that is used to populate this value. However, I would like to add the ability …

Read More
How do I drag and drop a row in a JTable?

How do you setup a JTable to be able to drag a row to a different index in the table. For example if I have 5 rows and I want to drag the 4th row to the 2nd position?

Read More