com.fr.design.gui.syntax.ui.rtextarea

类 RTATextTransferHandler

java.lang.Object

javax.swing.TransferHandler

com.fr.design.gui.syntax.ui.rtextarea.RTATextTransferHandler

所有已实现的接口:

java.io.Serializable

public class RTATextTransferHandler
extends javax.swing.TransferHandler

Handles the transfer of data to/from an RTextArea via drag-and-drop. This class is pretty much ripped off from a subclass of BasicTextUI. In the future, it will include the ability to drag-and-drop files into RTextAreas (i.e., the text will be inserted into the text area).

The main reason this class is kept around is so we can subclass it.

版本:

0.1

作者:

Robert Futrell

另请参阅:

序列化表格

嵌套类概要

从类继承的嵌套类/接口 javax.swing.TransferHandler

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

字段概要

从类继承的字段 javax.swing.TransferHandler

COPY, COPY_OR_MOVE, LINK, MOVE, NONE

构造器概要

构造器

构造器和说明
RTATextTransferHandler()

方法概要

方法

限定符和类型	方法和说明
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 to a specified text component.
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) 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.

从类继承的方法 javax.swing.TransferHandler

canImport, exportAsDrag, exportToClipboard, getCopyAction, getCutAction, getDragImage, getDragImageOffset, getPasteAction, getVisualRepresentation, importData, setDragImage, setDragImageOffset

从类继承的方法 java.lang.Object

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

构造器详细资料

RTATextTransferHandler

public RTATextTransferHandler()

方法详细资料

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 to a specified text component. The set of usable flavors are tried in the following order:

1. First, an attempt is made to find a flavor matching the content tyep 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.

参数:

flavors - The flavors to check if c will accept them.

c - The text component to see whether it will accept any of the specified data flavors as input.

handleReaderImport

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

Import the given stream data into the text component.

抛出:

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.

覆盖:

getSourceActions 在类中 javax.swing.TransferHandler

参数:

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

返回:

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.

覆盖:

createTransferable 在类中 javax.swing.TransferHandler

参数:

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

返回:

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.

覆盖:

exportDone 在类中 javax.swing.TransferHandler

参数:

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.

覆盖:

importData 在类中 javax.swing.TransferHandler

参数:

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

t - The data to import

返回:

true iff the data was inserted into the component.

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.

覆盖:

canImport 在类中 javax.swing.TransferHandler

参数:

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

flavors - The data formats available.

返回:

true iff the data can be inserted.