ch.epfl.craft.magmap
Class MagnetTransferHandler

java.lang.Object
  javax.swing.TransferHandler
      ch.epfl.craft.magmap.MagnetTransferHandler

All Implemented Interfaces:

java.io.Serializable

public class MagnetTransferHandler

extends javax.swing.TransferHandler

Drag & Drop support for magnets. This TransferHandler use the id of the node in the model as identifier. It is then easy to get a reference on the MagnetNode.

Version:

1.0

Author:

Jerome Caffaro

See Also:

Serialized Form

Nested Class Summary

class

MagnetTransferHandler.IndexTransferable Custom class that encapsulate a number == index of the magnet in the model.

Field Summary

java.awt.datatransfer.DataFlavor	localArrayListFlavor
java.lang.String	localArrayListType
static java.awt.datatransfer.DataFlavor	localIndexFlavor
static java.lang.String	localIndexType
java.awt.datatransfer.DataFlavor	serialArrayListFlavor

Fields inherited from class javax.swing.TransferHandler

COPY, COPY_OR_MOVE, MOVE, NONE

Constructor Summary

MagnetTransferHandler()
Creates a new MagnetTransferHandler instance.

Method Summary

boolean	canImport(javax.swing.JComponent c, java.awt.datatransfer.DataFlavor[] flavors) Returns true if this c can import the kind of flavors, else returns false
protected java.awt.datatransfer.Transferable	createTransferable(javax.swing.JComponent c) Create the instance that will be transeferred to the source from c component.
protected void	exportDone(javax.swing.JComponent c, java.awt.datatransfer.Transferable data, int action) Called on the source when the dragged has finished.
int	getSourceActions(javax.swing.JComponent c) Returns the kind of action supported by this source.
boolean	importData(javax.swing.JComponent c, java.awt.datatransfer.Transferable t) Import the data t in c.

Methods inherited from class javax.swing.TransferHandler

exportAsDrag, exportToClipboard, getCopyAction, getCutAction, getPasteAction, getVisualRepresentation

Methods inherited from class java.lang.Object

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

Field Detail

localArrayListFlavor

public java.awt.datatransfer.DataFlavor localArrayListFlavor

serialArrayListFlavor

public java.awt.datatransfer.DataFlavor serialArrayListFlavor

localArrayListType

public java.lang.String localArrayListType

localIndexType

public static java.lang.String localIndexType

localIndexFlavor

public static java.awt.datatransfer.DataFlavor localIndexFlavor

Constructor Detail

MagnetTransferHandler

public MagnetTransferHandler()

Creates a new MagnetTransferHandler instance.

Method Detail

importData

public boolean importData(javax.swing.JComponent c,
                          java.awt.datatransfer.Transferable t)

Import the data t in c.

Parameters:

t - the transferred data

c - the target component

exportDone

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

Called on the source when the dragged has finished.

Parameters:

c - the component on which dragged occured

data - the data that was transfered

action - the kind of action that was done (COPY or MOVE)

canImport

public boolean canImport(javax.swing.JComponent c,
                         java.awt.datatransfer.DataFlavor[] flavors)

Returns true if this c can import the kind of flavors, else returns false

Parameters:

c - the component destination to test

flavors - the list of flavors

Returns:

a boolean indicating if the flavors can be imported

createTransferable

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

Create the instance that will be transeferred to the source from c component. We simply create some class of transferrable number that contains the index in the JList (==Model too) of the selected (== dragged) magnet.

Parameters:

c - the component from which the data is transferred (source)

Returns:

the transferrable object that contains the index of the dragged magnet

getSourceActions

public int getSourceActions(javax.swing.JComponent c)

Returns the kind of action supported by this source. This handler supports only COPY.

Returns:

COPY