Examples of org.eclipse.swt.dnd.DragSource

org.eclipse.swt.dnd.DragSource
le a label as a Drag Source Label label = new Label(shell, SWT.NONE); // This example will allow text to be dragged Transfer[] types = new Transfer[] {TextTransfer.getInstance()}; // This example will allow the text to be copied or moved to the drop target int operations = DND.DROP_MOVE | DND.DROP_COPY; DragSource source = new DragSource(label, operations); source.setTransfer(types); source.addDragListener(new DragSourceListener() { public void dragStart(DragSourceEvent e) { // Only start the drag if there is actually text in the // label - this text will be what is dropped on the target. if (label.getText().length() == 0) { event.doit = false; } }; public void dragSetData(DragSourceEvent event) { // A drop has been performed, so provide the data of the // requested type. // (Checking the type of the requested data is only // necessary if the drag source supports more than // one data type but is shown here as an example). if (TextTransfer.getInstance().isSupportedType(event.dataType)){ event.data = label.getText(); } } public void dragFinished(DragSourceEvent event) { // A Move operation has been performed so remove the data // from the source if (event.detail == DND.DROP_MOVE) label.setText(""); } });

Styles

DND.DROP_NONE, DND.DROP_COPY, DND.DROP_MOVE, DND.DROP_LINK

Events

DND.DragStart, DND.DragSetData, DND.DragEnd

@see Drag and Drop snippets @see SWT Example: DNDExample @see Sample code and further information @noextend This class is not intended to be subclassed by clients.

   * @see org.eclipse.swt.dnd.DND
   */
  public void addDragSupport(int operations, Transfer[] transferTypes, DragSourceListener listener) {


    Control myControl = getControl();
    final DragSource dragSource = new DragSource(myControl, operations);
    dragSource.setTransfer(transferTypes);
    dragSource.addDragListener(listener);
  }

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        // not needed
      }


    });


    DragSource dragSource = new DragSource(getSourceViewer().getTextWidget(), DND.DROP_COPY);


    Transfer[] types = new Transfer[] { FeatureStructureTransfer.getInstance() };


    dragSource.setTransfer(types);


    dragSource.addDragListener(new FeatureStructureDragListener(getSourceViewer().getTextWidget()));


    getSite().getPage().addSelectionListener(this);


    getSourceViewer().getTextWidget().setEditable(false);
    getSourceViewer().setEditable(false);

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    changeAnnotationMode();


    // TODO: create a listener interface ... for editor listener
    mEditor.addAnnotationListener(new EditorListener());


    DragSource source = new DragSource(mTableViewer.getTree(), DND.DROP_COPY);


    source.setTransfer(new Transfer[] { FeatureStructureTransfer.getInstance() });


    source.addDragListener(new DragSourceListener() {
      TreeItem dragSourceItem = null;


      public void dragStart(DragSourceEvent event) {
        TreeItem[] selection = mTableViewer.getTree().getSelection();

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      public void dropAccept(DropTargetEvent event) {
      }
    });




    DragSource source = new DragSource(viewer.getTree(), DND.DROP_COPY);


    source.setTransfer(new Transfer[] { FeatureStructureTransfer.getInstance() });


    source.addDragListener(new DragSourceListener() {
      TreeItem dragSourceItem = null;


      public void dragStart(DragSourceEvent event) {


        event.doit = false;

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    changeAnnotationMode();


    editorChangeListener = new EditorListener();
    editor.addAnnotationListener(editorChangeListener);


    DragSource source = new DragSource(mTableViewer.getTree(), DND.DROP_COPY);


    source.setTransfer(new Transfer[] { FeatureStructureTransfer.getInstance() });


    source.addDragListener(new DragSourceListener() {
      TreeItem dragSourceItem = null;


      public void dragStart(DragSourceEvent event) {
        TreeItem[] selection = mTableViewer.getTree().getSelection();

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      public void dropAccept(DropTargetEvent event) {
      }
    });




    DragSource source = new DragSource(viewer.getTree(), DND.DROP_COPY);


    source.setTransfer(new Transfer[] { FeatureStructureTransfer.getInstance() });


    source.addDragListener(new DragSourceListener() {
      TreeItem dragSourceItem = null;


      public void dragStart(DragSourceEvent event) {


        event.doit = false;

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        mFeatureStructureSelectionProvider.setSelection(new AnnotationEditorSelection((ITextSelection) event.getSelection(), 
                new StructuredSelection(ModelFeatureStructure.create(getDocument(), getSelectedAnnotations()))));
      }
    });
    
    DragSource dragSource = new DragSource(getSourceViewer().getTextWidget(), DND.DROP_COPY);


    Transfer[] types = new Transfer[] { FeatureStructureTransfer.getInstance() };


    dragSource.setTransfer(types);


    dragSource.addDragListener(new FeatureStructureDragListener(getSourceViewer().getTextWidget()));


    getSourceViewer().getTextWidget().setEditable(false);
    getSourceViewer().setEditable(false);


    getSite().setSelectionProvider(mFeatureStructureSelectionProvider);

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  public static DragSourceDescriptor addDragSupport(Control control, ISelectionProvider provider) {
    int dndOperations = DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK | DND.DROP_DEFAULT;
      Set<Transfer> transfers = getTransfers();
        transfers.remove(FileTransfer.getInstance());


      DragSource dragSource=new DragSource(control, dndOperations);
        DragController dragController = new DragController(dragSource, transfers);
        provider.addSelectionChangedListener(dragController);
        dragController.setTransfers((IStructuredSelection) provider.getSelection());
      UDIGControlDragListener controlDragListener = new UDIGControlDragListener(provider);
        dragSource.addDragListener(controlDragListener);
        return new DragSourceDescriptor(dragSource, controlDragListener);
  }

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      });
  }


  private void setupDataManagerViewForDragAndDropOutOf(Composite parent) {
    Transfer[] types = new Transfer[] { new CIShellDataTransfer(Activator.context) };
    DragSource dragSource = new DragSource(parent, DND.DROP_DEFAULT | DND.DROP_MOVE);
    dragSource.setTransfer(types);
    dragSource.addDragListener(new DragSourceListener() {
      private Data[] selectedData;


      public void dragStart(DragSourceEvent event) {
        System.err.println("dragStart");
        Data[] selectedData = AbstractDataManagerView.this.manager.getSelectedData();

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    this.tree = treeView.getTree();
    display = tree.getDisplay();


    Transfer[] types = new Transfer[] { new JComponentTransfer() };
    int operations = DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_LINK;
    final DragSource source = new DragSource(tree, operations);
    source.setTransfer(types);
    treeItems = new TreeItem[1];
    source.addDragListener(this);


    DropTarget target = new DropTarget(tree, operations);
    target.setDropTargetEffect(new MyDropTargetEffect(tree));
    target.setTransfer(types);
    target.addDropListener(this);

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