Examples of org.eclipse.jface.util.LocalSelectionTransfer

org.eclipse.jface.util.LocalSelectionTransfer
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

        viewer.addDragSupport(DND.DROP_MOVE | DND.DROP_COPY, new Transfer[] {
            LocalSelectionTransfer.getTransfer()
        }, new DragSourceAdapter() {
            @Override
            public void dragSetData(DragSourceEvent event) {
                LocalSelectionTransfer transfer = LocalSelectionTransfer.getTransfer();
                if (transfer.isSupportedType(event.dataType))
                    transfer.setSelection(viewer.getSelection());
            }
        });
        viewer.addOpenListener(new IOpenListener() {
            public void open(OpenEvent event) {
                IStructuredSelection selection = (IStructuredSelection) event.getSelection();

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            LocalSelectionTransfer.getTransfer()
        }, new DragSourceListener() {
            public void dragStart(DragSourceEvent event) {}


            public void dragSetData(DragSourceEvent event) {
                LocalSelectionTransfer transfer = LocalSelectionTransfer.getTransfer();
                if (transfer.isSupportedType(event.dataType))
                    transfer.setSelection(viewer.getSelection());
            }


            public void dragFinished(DragSourceEvent event) {}
        });

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        parents.add(parent);
      }
    }


    // prepare transfer
    LocalSelectionTransfer transfer = LocalSelectionTransfer.getTransfer();
    Object[] verticesArray = vertices.toArray();
    transfer.setSelection(new StructuredSelection(verticesArray));


    // put in clipboard
    Object[] data = new Object[] { verticesArray };
    Transfer[] transfers = new Transfer[] { transfer };
    GraphitiClipboard.getInstance().setContents(data, transfers);

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        vertices.add(vertex);
      }
    }


    // prepare transfer
    LocalSelectionTransfer transfer = LocalSelectionTransfer.getTransfer();
    Object[] verticesArray = vertices.toArray();
    transfer.setSelection(new StructuredSelection(verticesArray));


    // put in clipboard
    Object[] data = new Object[] { verticesArray };
    Transfer[] transfers = new Transfer[] { transfer };
    GraphitiClipboard.getInstance().setContents(data, transfers);

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        && selection.size() == 1 && (selection.get(0) instanceof GraphEditPart || selection
        .get(0) instanceof VertexEditPart));
  }


  protected List<?> getClipboardContents() {
    LocalSelectionTransfer transfer = LocalSelectionTransfer.getTransfer();
    Object data = GraphitiClipboard.getInstance().getContents(transfer);
    if (data instanceof IStructuredSelection) {
      return ((IStructuredSelection) data).toList();
    } else {
      return null;

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      _lineCanvas.addPaintListener(this);
      _lineCanvas.setCapture(false);
      _lineCanvas.setEnabled(false);


      DropTarget dropTarget = new DropTarget(_lineCanvas, DND.DROP_NONE | DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK);
      LocalSelectionTransfer transfer = LocalSelectionTransfer.getTransfer();
      transfer.setSelection(new StructuredSelection("Test"));
      dropTarget.setTransfer(new Transfer[] { transfer });
      dropTarget.addDropListener(this);
    }
  }

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