edu.northwestern.at.utils.swing
Class ImageTransferable

java.lang.Object
  javax.swing.TransferHandler
      edu.northwestern.at.utils.swing.ImageTransferable

All Implemented Interfaces:

java.io.Serializable

public class ImageTransferable
extends javax.swing.TransferHandler

Transferable for image files.

Handles the default file types recognized by Java (.gif, .jpeg, .png). The source and destination fields must be JLabels or subclasses thereof.

See Also:

Serialized Form

Field Summary

Fields inherited from class javax.swing.TransferHandler

COPY, COPY_OR_MOVE, MOVE, NONE

Constructor Summary

ImageTransferable()

Method Summary

boolean	canImport(javax.swing.JComponent component, java.awt.datatransfer.DataFlavor[] flavor) Check if component can import image.
java.awt.datatransfer.Transferable	createTransferable(javax.swing.JComponent component) Create image transferable.
int	getSourceActions(javax.swing.JComponent c) Return COPY action for a component.
boolean	importData(javax.swing.JComponent component, java.awt.datatransfer.Transferable transferable) Import image data from a transferable.

Methods inherited from class javax.swing.TransferHandler

exportAsDrag, exportDone, exportToClipboard, getCopyAction, getCutAction, getPasteAction, getVisualRepresentation

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageTransferable

public ImageTransferable()

Method Detail

getSourceActions

public int getSourceActions(javax.swing.JComponent c)

Return COPY action for a component.

Overrides:

getSourceActions in class javax.swing.TransferHandler

Parameters:

c - The component.

Returns:

The COPY action.

canImport

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

Check if component can import image.

Overrides:

canImport in class javax.swing.TransferHandler

Parameters:

component - The component to check.

flavor - Array of transferable flavors the component accepts.

Returns:

true if component accepts images, false otherwise.

createTransferable

public java.awt.datatransfer.Transferable createTransferable(javax.swing.JComponent component)

Create image transferable.

Overrides:

createTransferable in class javax.swing.TransferHandler

Parameters:

component - The component for which to create the transferable.

Returns:

The image transferable, null if the component cannot accept images.

importData

public boolean importData(javax.swing.JComponent component,
                          java.awt.datatransfer.Transferable transferable)

Import image data from a transferable.

Overrides:

importData in class javax.swing.TransferHandler

Parameters:

component - The component to which to import data.

transferable - The transferable containing the data to import.

Returns:

true if the data is successfully imported.