Package org.eclipse.jface.util

Class LocalSelectionTransfer

java.lang.Object
org.eclipse.swt.dnd.Transfer
org.eclipse.swt.dnd.ByteArrayTransfer
org.eclipse.jface.util.LocalSelectionTransfer
public class LocalSelectionTransfer extends ByteArrayTransfer
A LocalSelectionTransfer may be used for drag and drop operations within the same instance of Eclipse. The selection is made available directly for use in the DropTargetListener. dropAccept method. The DropTargetEvent passed to dropAccept does not contain the drop data. The selection may be used for validation purposes so that the drop can be aborted if appropriate. This class is not intended to be subclassed.
Since:
3.2

  • Constructor Details

    • LocalSelectionTransfer

      protected LocalSelectionTransfer()
      Only the singleton instance of this class may be used.

  • Method Details

    • getTransfer

      public static LocalSelectionTransfer getTransfer()
      Returns the singleton.
      Returns:
      the singleton

    • getSelection

      public ISelection getSelection()
      Returns the local transfer data.
      Returns:
      the local transfer data

    • getTypeIds

      protected int[] getTypeIds()
      Returns the type id used to identify this transfer.
      Specified by:
      getTypeIds in class Transfer
      Returns:
      the type id used to identify this transfer.

    • getTypeNames

      protected String[] getTypeNames()
      Returns the type name used to identify this transfer.
      Specified by:
      getTypeNames in class Transfer
      Returns:
      the type name used to identify this transfer.

    • javaToNative

      public void javaToNative(Object object, TransferData transferData)
      Overrides org.eclipse.swt.dnd.ByteArrayTransfer#javaToNative(Object, TransferData). Only encode the transfer type name since the selection is read and written in the same process.
      Overrides:
      javaToNative in class ByteArrayTransfer
      Parameters:
      object - a java byte[] containing the data to be converted
      transferData - an empty TransferData object that will be filled in on return with the platform specific format of the data
      See Also:

    • nativeToJava

      public Object nativeToJava(TransferData transferData)
      Overrides org.eclipse.swt.dnd.ByteArrayTransfer#nativeToJava(TransferData). Test if the native drop data matches this transfer type.
      Overrides:
      nativeToJava in class ByteArrayTransfer
      Parameters:
      transferData - the platform specific representation of the data to be converted
      Returns:
      a java byte[] containing the converted data if the conversion was successful; otherwise null
      See Also:

    • setSelection

      public void setSelection(ISelection s)
      Sets the transfer data for local use.
      Parameters:
      s - the transfer data

    • getSelectionSetTime

      public long getSelectionSetTime()
      Returns the time when the selection operation this transfer is associated with was started.
      Returns:
      the time when the selection operation has started
      See Also:

    • setSelectionSetTime

      public void setSelectionSetTime(long time)
      Sets the time when the selection operation this transfer is associated with was started. If assigning this from an SWT event, be sure to use setSelectionTime(event.time & 0xFFFF)
      Parameters:
      time - the time when the selection operation was started
      See Also: