org.rosuda.JGR.toolkit
Class TextTransferHandler

java.lang.Object
  javax.swing.TransferHandler
      org.rosuda.JGR.toolkit.TextTransferHandler

All Implemented Interfaces:

java.io.Serializable, javax.swing.plaf.UIResource

public class TextTransferHandler
extends javax.swing.TransferHandler
implements javax.swing.plaf.UIResource

TextTransferHandler - copied out of the Java sources, because i need it as accessible class. RoSuDa 2003 - 2005

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.TransferHandler

javax.swing.TransferHandler.DropLocation, javax.swing.TransferHandler.TransferSupport

Field Summary

Fields inherited from class javax.swing.TransferHandler

COPY, COPY_OR_MOVE, LINK, MOVE, NONE

Constructor Summary

TextTransferHandler()

Method Summary

boolean	canImport(javax.swing.JComponent comp, java.awt.datatransfer.DataFlavor[] flavors) This method indicates if a component would accept an import of the given set of data flavors prior to actually attempting to import it.
protected java.awt.datatransfer.Transferable	createTransferable(javax.swing.JComponent comp) Create a Transferable to use as the source for a data transfer.
protected void	exportDone(javax.swing.JComponent source, java.awt.datatransfer.Transferable data, int action) This method is called after data has been exported.
protected java.awt.datatransfer.DataFlavor	getImportFlavor(java.awt.datatransfer.DataFlavor[] flavors, javax.swing.text.JTextComponent c) Try to find a flavor that can be used to import a Transferable.
int	getSourceActions(javax.swing.JComponent c) This is the type of transfer actions supported by the source.
protected void	handleReaderImport(java.io.Reader in, javax.swing.text.JTextComponent c, boolean useRead) Import the given stream data into the text component.
boolean	importData(javax.swing.JComponent comp, java.awt.datatransfer.Transferable t) This method causes a transfer to a component from a clipboard or a DND drop operation.

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

TextTransferHandler

public TextTransferHandler()

Method Detail

getImportFlavor

protected java.awt.datatransfer.DataFlavor getImportFlavor(java.awt.datatransfer.DataFlavor[] flavors,
                                                           javax.swing.text.JTextComponent c)

Try to find a flavor that can be used to import a Transferable. The set of usable flavors are tried in the following order:

1. First, an attempt is made to find a flavor matching the content type of the EditorKit for the component.
2. Second, an attempt to find a text/plain flavor is made.
3. Third, an attempt to find a flavor representing a String reference in the same VM is made.
4. Lastly, DataFlavor.stringFlavor is searched for.

handleReaderImport

protected void handleReaderImport(java.io.Reader in,
                                  javax.swing.text.JTextComponent c,
                                  boolean useRead)
                           throws javax.swing.text.BadLocationException,
                                  java.io.IOException

Import the given stream data into the text component.

Throws:

javax.swing.text.BadLocationException

java.io.IOException

getSourceActions

public int getSourceActions(javax.swing.JComponent c)

This is the type of transfer actions supported by the source. Some models are not mutable, so a transfer operation of COPY only should be advertised in that case.

Overrides:

getSourceActions in class javax.swing.TransferHandler

Parameters:

c - The component holding the data to be transfered. This argument is provided to enable sharing of TransferHandlers by multiple components.

Returns:

This is implemented to return NONE if the component is a JPasswordField since exporting data via user gestures is not allowed. If the text component is editable, COPY_OR_MOVE is returned, otherwise just COPY is allowed.

createTransferable

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

Create a Transferable to use as the source for a data transfer.

Overrides:

createTransferable in class javax.swing.TransferHandler

Parameters:

comp - The component holding the data to be transfered. This argument is provided to enable sharing of TransferHandlers by multiple components.

Returns:

The representation of the data to be transfered.

exportDone

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

This method is called after data has been exported. This method should remove the data that was transfered if the action was MOVE.

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.

importData

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

This method causes a transfer to a component from a clipboard or a DND drop operation. The Transferable represents the data to be imported into the component.

Overrides:

importData in class javax.swing.TransferHandler

Parameters:

comp - The component to receive the transfer. This argument is provided to enable sharing of TransferHandlers by multiple components.

t - The data to import

Returns:

true if the data was inserted into the component, false otherwise.

canImport

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

This method indicates if a component would accept an import of the given set of data flavors prior to actually attempting to import it.

Overrides:

canImport in class javax.swing.TransferHandler

Parameters:

comp - The component to receive the transfer. This argument is provided to enable sharing of TransferHandlers by multiple components.

flavors - The data formats available

Returns:

true if the data can be inserted into the component, false otherwise.