How to detect which JTree was clicked?

[Ramon F Herrera]

My application has two JTrees side by side, and I need to keep track
of the currently selected node, as follows:

public void valueChanged(TreeSelectionEvent e) {

pickedNode = (DefaultMutableTreeNode) leftTree.getLastSelectedPathComponent();
[...]
}


As you can see above, the 'e' variable is not being used, but it should.
So, how do I narrow down the TreeSelectionEvent, 'e' to the specific
JTree where the event was triggered??

TIA,

-Ramon F. Herrera

 

[Jacob]

My application has two JTrees side by side, and I need to keep track
of the currently selected node, as follows:

public void valueChanged(TreeSelectionEvent e) {

pickedNode = (DefaultMutableTreeNode) leftTree.getLastSelectedPathComponent();
[...]
}


As you can see above, the 'e' variable is not being used, but it should.
So, how do I narrow down the TreeSelectionEvent, 'e' to the specific
JTree where the event was triggered??

e.getSource() will return you the source (i.e. JTree) of the event.

 

[Martijn van Steenbergen]

You could use two different TreeSelectionListeners to solve this
problem. Or, if I'm not mistaken, you could also do:

JTree source = (JTree)e.getSource();

Martijn.