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java.lang.Object | +--org.eclipse.swt.dnd.Transfer | +--org.eclipse.swt.dnd.ByteArrayTransfer | +--org.eclipse.ui.part.MarkerTransfer
A MarkerTransfer
is used to transfer an array of
IMarker
s from one part to another 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.
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 MarkerTransfer |
getInstance()
Returns the singleton instance. |
protected int[] |
getTypeIds()
Returns the platform specfic ids of the data types that can be converted using this transfer agent. |
protected String[] |
getTypeNames()
Returns the platform specfic names of the data types that can be converted using this transfer agent. |
protected void |
javaToNative(Object object,
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[] . |
Methods inherited from class org.eclipse.swt.dnd.ByteArrayTransfer |
getSupportedTypes, isSupportedType |
Methods inherited from class org.eclipse.swt.dnd.Transfer |
registerType |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
public static MarkerTransfer getInstance()
protected int[] getTypeIds()
Transfer
getTypeIds
in class Transfer
protected String[] getTypeNames()
Transfer
getTypeNames
in class Transfer
protected void javaToNative(Object object, TransferData transferData)
ByteArrayTransfer
javaToNative
converts a java
byte[]
to a platform specific representation. For additional
information see Transfer#javaToNative
.
javaToNative
in class ByteArrayTransfer
object
- a java byte[]
containing the data to be convertedtransferData
- an empty TransferData
object; this
object will be filled in on return with the platform specific format of the dataTransfer.javaToNative(java.lang.Object, org.eclipse.swt.dnd.TransferData)
protected Object nativeToJava(TransferData transferData)
ByteArrayTransfer
nativeToJava
converts a platform specific
representation of a byte array to a java byte[]
.
For additional information see Transfer#nativeToJava
.
nativeToJava
in class ByteArrayTransfer
transferData
- the platform specific representation of the data to be
been converted
byte[]
containing the converted data if the
conversion was successful; otherwise nullTransfer.nativeToJava(org.eclipse.swt.dnd.TransferData)
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