Package jahuwaldt.swing

Class ImageSelection

java.lang.Object

jahuwaldt.swing.ImageSelection

All Implemented Interfaces:

java.awt.datatransfer.ClipboardOwner, java.awt.datatransfer.Transferable

public class ImageSelection
extends java.lang.Object
implements java.awt.datatransfer.Transferable, java.awt.datatransfer.ClipboardOwner

A Transferable which implements the capability required to transfer an Image. This Transferable properly supports DataFlavor.imageFlavor and all equivalent flavors. No other DataFlavors are supported.

Modified by: Joseph A. Huwaldt

Version:

March 5, 2009

Author:

Joseph A. Huwaldt Date: March 5, 2009

Constructor Summary

Constructors

Constructor	Description
ImageSelection(java.awt.Image image)	Creates a Transferable capable of transferring the specified Image.

Method Summary

Modifier and Type	Method	Description
java.lang.Object	getTransferData(java.awt.datatransfer.DataFlavor flavor)	Returns the Transferable's data in the requested DataFlavor if possible.
java.awt.datatransfer.DataFlavor[]	getTransferDataFlavors()	Returns an array of flavors in which this Transferable can provide the data.
boolean	isDataFlavorSupported(java.awt.datatransfer.DataFlavor flavor)	Returns whether the requested flavor is supported by this Transferable.
void	lostOwnership(java.awt.datatransfer.Clipboard clipboard, java.awt.datatransfer.Transferable contents)	Notifies this object that it is no longer the clipboard owner.

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageSelection

public ImageSelection(java.awt.Image image)

Creates a Transferable capable of transferring the specified Image.

Method Detail

getTransferDataFlavors

public java.awt.datatransfer.DataFlavor[] getTransferDataFlavors()

Returns an array of flavors in which this Transferable can provide the data. DataFlavor.imageFlavor is properly supported.

Specified by:

getTransferDataFlavors in interface java.awt.datatransfer.Transferable

Returns:

an array of length one, whose only element is DataFlavor.imageFlavor

isDataFlavorSupported

public boolean isDataFlavorSupported(java.awt.datatransfer.DataFlavor flavor)

Returns whether the requested flavor is supported by this Transferable.

Specified by:

isDataFlavorSupported in interface java.awt.datatransfer.Transferable

Parameters:

flavor - the requested flavor for the data

Returns:

true if flavor is equal to DataFlavor.imageFlavor; false if flavor is any other flavor.

getTransferData

public java.lang.Object getTransferData(java.awt.datatransfer.DataFlavor flavor)
                                 throws java.awt.datatransfer.UnsupportedFlavorException,
                                        java.io.IOException

Returns the Transferable's data in the requested DataFlavor if possible. If the desired flavor is DataFlavor.imageFlavor, or an equivalent flavor, the Image representing the selection is returned.

Specified by:

getTransferData in interface java.awt.datatransfer.Transferable

Parameters:

flavor - the requested flavor for the data

Returns:

the data in the requested flavor, as outlined above

Throws:

java.awt.datatransfer.UnsupportedFlavorException - if the requested data flavor is not equivalent to DataFlavor.imageFlavor

java.io.IOException - if the data is no longer available in the requested flavor.

java.lang.NullPointerException - if flavor is null

lostOwnership

public void lostOwnership(java.awt.datatransfer.Clipboard clipboard,
                          java.awt.datatransfer.Transferable contents)

Notifies this object that it is no longer the clipboard owner. This method will be called when another application or another object within this application asserts ownership of the clipboard.

Specified by:

lostOwnership in interface java.awt.datatransfer.ClipboardOwner