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PODragging node from JTree and dropping onto JLabel to perform an action
 

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    <p>I want to implement DnD on my system by dragging a node from a JTree and dropping it onto a JLabel.</p> <p>The JLabel is an Icon with certain properties about a machine, and by dragging the information from the JTree node onto the JLabel I want it to be able to send a message to a client listening on that machine.</p> <p>Any help is much appreciated!</p> <p>Example of label method:</p> <pre><code>private void makeLabel(String html, final String version) { // Create a button to link to the DR environment //JButton button = new JButton(html); JLabel machineLabel = new JLabel(); machineLabel.setTransferHandler(new TransferHandler("text")); MouseListener listener = new DragMouseAdapter(); machineLabel.addMouseListener(listener); machineLabel.setIcon(onlineIcon); machineLabel.setToolTipText("IP: " + html); //Add the button to the panel and make sure it appears machineLabel.setSize(25, 10); vecIcons.addElement(machineLabel); buttonPanel.add(machineLabel); buttonPanel.setVisible(true); buttonPanel.validate(); dynaScrollPane.validate(); buttonPanel.repaint(); dynaScrollPane.repaint(); } </code></pre> <p>DragMouseAdapter method:</p> <pre><code> private class DragMouseAdapter extends MouseAdapter { public void mousePressed(MouseEvent e) { JComponent c = (JComponent) e.getSource(); TransferHandler handler = c.getTransferHandler(); handler.exportAsDrag(c, e, TransferHandler.LINK); } } </code></pre> <p>Then in order to make my tree draggable I just have: </p> <pre><code>exampleTree.setDragEnabled(true); </code></pre>
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    1. USmKorbel
    1. USFallso
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      1. VTUpMod
    1. COMay be this can help you: [Drag and Drop and Data Transfer](http://download.oracle.com/javase/tutorial/uiswing/dnd/index.html) and [this example](http://www.java2s.com/Code/Java/Swing-JFC/DnDdraganddropJTreecode.htm).
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      1. USHarry Joy
    2. COI believe this is covered by the regular [Java DnD support](http://download.oracle.com/javase/tutorial/uiswing/dnd/intro.html).
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      1. USS.L. Barth
    3. COI did try the code provided by following the Java tutorial but it didn't really work with jLabels, instead of dropping onto the label it put the control string next to the label.
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      1. USFallso
 

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