org.archiviststoolkit.swing.jTreeDnD
Class NodeMoveTransferHandler

java.lang.Object
  javax.swing.TransferHandler
      org.archiviststoolkit.swing.jTreeDnD.NodeMoveTransferHandler

All Implemented Interfaces:

java.io.Serializable

public class NodeMoveTransferHandler
extends javax.swing.TransferHandler

NodeMoveTransferHandler.java

Transfer handler implementation that supports to move a selected tree node within a JTree.

See Also:

Serialized Form

Field Summary

Fields inherited from class javax.swing.TransferHandler

COPY, COPY_OR_MOVE, MOVE, NONE

Constructor Summary

NodeMoveTransferHandler()
constructor

Method Summary

protected java.awt.datatransfer.Transferable	createTransferable(javax.swing.JComponent c) create a transferable that contains all paths that are currently selected in a given tree
protected void	exportDone(javax.swing.JComponent source, java.awt.datatransfer.Transferable data, int action) move selected paths when export of drag is done
java.awt.image.BufferedImage	getDragImage(javax.swing.JTree tree) get a drag image from the currently dragged node (if any)
int	getSourceActions(javax.swing.JComponent c) Returns the type of transfer actions supported by the source.

Methods inherited from class javax.swing.TransferHandler

canImport, exportAsDrag, exportToClipboard, getCopyAction, getCutAction, getPasteAction, getVisualRepresentation, importData

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NodeMoveTransferHandler

public NodeMoveTransferHandler()

constructor

Method Detail

createTransferable

protected java.awt.datatransfer.Transferable createTransferable(javax.swing.JComponent c)

create a transferable that contains all paths that are currently selected in a given tree

Overrides:

createTransferable in class javax.swing.TransferHandler

Returns:

all selected paths in the given tree (or null if the given component is not a tree)

See Also:

TransferHandler.createTransferable(javax.swing.JComponent)

exportDone

protected void exportDone(javax.swing.JComponent source,
                          java.awt.datatransfer.Transferable data,
                          int action)

move selected paths when export of drag is done

Overrides:

exportDone in class javax.swing.TransferHandler

Parameters:

source - the component that was the source of the data

data - the data that was transferred or possibly null if the action is NONE.

action - the actual action that was performed

getSourceActions

public int getSourceActions(javax.swing.JComponent c)

Returns the type of transfer actions supported by the source. This transfer handler supports moving of tree nodes so it returns MOVE.

Overrides:

getSourceActions in class javax.swing.TransferHandler

Returns:

TransferHandler.MOVE

getDragImage

public java.awt.image.BufferedImage getDragImage(javax.swing.JTree tree)

get a drag image from the currently dragged node (if any)

Parameters:

tree - the tree showing the node

Returns:

the image to draw during drag