public class ResourceTransfer extends ByteArrayTransfer
ResourceTransfer class is used to transfer an
array of IResources from one part to another in a
drag and drop operation or a cut, copy, paste action.
In every drag and drop operation there is a DragSource and
a DropTarget. When a drag occurs a Transfer is
used to marshal the drag data from the source into a byte array. If a drop
occurs another Transfer is used to marshal the byte array into
drop data for the target.
When a CutAction or a CopyAction is performed,
this transfer is used to place references to the selected resources
on the Clipboard. When a PasteAction is performed, the
references on the clipboard are used to move or copy the resources
to the selected destination.
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| Modifier and Type | Method and Description |
|---|---|
static ResourceTransfer |
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 String[] |
getTypeNames()
Returns the platform specific names of the data types that can be converted
using this transfer agent.
|
protected void |
javaToNative(Object data,
TransferData transferData)
This implementation of
javaToNative converts a java
byte[] to a platform specific representation. |
protected Object |
nativeToJava(TransferData transferData)
This implementation of
nativeToJava converts a platform specific
representation of a byte array to a java byte[]. |
getSupportedTypes, isSupportedTyperegisterType, validatepublic static ResourceTransfer getInstance()
protected int[] getTypeIds()
TransfergetTypeIds in class Transferprotected String[] getTypeNames()
TransfergetTypeNames in class Transferprotected void javaToNative(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 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 convertedbyte[] containing the converted data if the conversion was
successful; otherwise nullTransfer.javaToNative(java.lang.Object, org.eclipse.swt.dnd.TransferData)
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