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java.lang.Objectorg.eclipse.swt.dnd.Transfer
org.eclipse.swt.dnd.ByteArrayTransfer
org.eclipse.ui.part.PluginTransfer
public class PluginTransfer
This class can be used to transfer an instance of PluginTransferData
between two parts in a workbench in a drag and drop operation.
In every drag and drop operation there is a DragSource and
a DropTarget. When a drag occurs a Transfer is
used to marshall the drag data from the source into a byte array. If a drop
occurs another Transfer is used to marshall the byte array into
drop data for the target.
A PluginTransferData contains the id of a drop action extension.
If a drop occurs the extension is invoked to perform a drop action. As a benefit,
the destination viewer doesn't need to have any knowledge of the items being
dropped into it.
This class can be used for a Viewer or an SWT component directly.
A singleton is provided which may be serially reused (see getInstance).
It is not intended to be subclassed.
StructuredViewer,
DropTarget,
DragSource| Method Summary | |
|---|---|
static PluginTransfer |
getInstance()
Returns the singleton instance. |
protected int[] |
getTypeIds()
Returns the platform specific ids of the data types that can be converted using this transfer agent. |
protected java.lang.String[] |
getTypeNames()
Returns the platform specific names of the data types that can be converted using this transfer agent. |
protected void |
javaToNative(java.lang.Object data,
TransferData transferData)
This implementation of javaToNative converts a java
byte[] to a platform specific representation. |
protected java.lang.Object |
nativeToJava(TransferData transferData)
This implementation of nativeToJava converts a platform specific
representation of a byte array to a java byte[]. |
| Methods inherited from class org.eclipse.swt.dnd.ByteArrayTransfer |
|---|
getSupportedTypes, isSupportedType |
| Methods inherited from class org.eclipse.swt.dnd.Transfer |
|---|
registerType, validate |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Method Detail |
|---|
public static PluginTransfer getInstance()
protected int[] getTypeIds()
Transfer
getTypeIds in class Transferprotected java.lang.String[] getTypeNames()
Transfer
getTypeNames in class Transfer
protected void javaToNative(java.lang.Object data,
TransferData transferData)
ByteArrayTransferjavaToNative converts a java
byte[] to a platform specific representation.
javaToNative in class ByteArrayTransferdata - a java byte[] containing the data to be convertedtransferData - an empty TransferData object that will
be filled in on return with the platform specific format of the dataTransfer.nativeToJava(org.eclipse.swt.dnd.TransferData)protected java.lang.Object nativeToJava(TransferData transferData)
ByteArrayTransfernativeToJava converts a platform specific
representation of a byte array to a java byte[].
nativeToJava in class ByteArrayTransfertransferData - the platform specific representation of the data to be converted
byte[] containing the converted data if the conversion was
successful; otherwise nullTransfer.javaToNative(java.lang.Object, org.eclipse.swt.dnd.TransferData)
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