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.

      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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    {
        if ( ConnectionTransfer.getInstance().isSupportedType( event.dataType ) )
        {
            if ( event.widget instanceof DragSource )
            {
                DragSource dragSource = ( DragSource ) event.widget;
                if ( dragSource.getControl() instanceof Table )
                {
                    Table table = ( Table ) dragSource.getControl();
                    TableItem[] items = table.getSelection();
                    List<Connection> connectionList = new ArrayList<Connection>();
                    for ( int i = 0; i < items.length; i++ )
                    {
                        if ( items[i].getData() instanceof Connection )

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    {
        if ( ConnectionTransfer.getInstance().isSupportedType( event.dataType ) )
        {
            if ( event.widget instanceof DragSource )
            {
                DragSource dragSource = ( DragSource ) event.widget;
                if ( dragSource.getControl() instanceof Tree )
                {
                    List<Object> objectList = new ArrayList<Object>();
                    if ( selection != null )
                    {
                        for ( Iterator<?> iterator = selection.iterator(); iterator.hasNext(); )

View Full Code Here

  
  /**
   * Initialize the drag and drop functionality.
   */
  private void init() {
        DragSource source = new DragSource(tableViewer.getControl(), DND.DROP_COPY | DND.DROP_MOVE);
        source.setTransfer(new Transfer[]{ new CsvRowTransfer()});
        source.addDragListener(new DragSourceListener() {
      
      @Override
      public void dragStart(DragSourceEvent event) {
        event.doit = ((IStructuredSelection)tableViewer.getSelection()).toArray().length == 1;
      }

View Full Code Here

    createDragSource();
  }


  private void createDragSource() {
    Transfer[] types = new Transfer[] { TextTransfer.getInstance() };
    DragSource dragSource = new DragSource(tree, DND.DROP_COPY
        | DND.DROP_MOVE);
    dragSource.setTransfer(types);
    dragSource.addDragListener(new DragSourceAdapter() {


      @Override
      public void dragSetData(DragSourceEvent event) {
        List<MetaArtefactOperation> operations = new ArrayList<MetaArtefactOperation>();
        for (TreeItem item : tree.getSelection()) {

View Full Code Here

  public void dragSetData(DragSourceEvent event) {
    event.data = _browserColumn.getSelection();
  }


  public void dragStart(DragSourceEvent event) {
    DragSource dragSource = (DragSource) event.getSource();
    Control control = dragSource.getControl();
    _startingPoint = null;
    _currentPoint = null;


    event.detail = DND.DROP_COPY;

View Full Code Here

      addDragSupport(menuHyperlink, operations, transferTypes, listener);
  }


  private DragSource addDragSupport(Control control, int operations,
      Transfer[] transferTypes, DragSourceListener listener) {
    DragSource source = new DragSource(control, operations);
    source.setTransfer(transferTypes);
    source.addDragListener(listener);
    source.setDragSourceEffect(new DragSourceEffect(control) {
      public void dragStart(DragSourceEvent event) {
        event.image = createDragEffectImage();
      }
    });
    return source;

View Full Code Here


    final StyledText st= viewer.getTextWidget();


    // Install drag source
    final ISelectionProvider selectionProvider= viewer.getSelectionProvider();
    final DragSource source= new DragSource(st, DND.DROP_COPY | DND.DROP_MOVE);
    source.setTransfer(new Transfer[] {TextTransfer.getInstance()});
    source.addDragListener(new DragSourceAdapter() {
      String fSelectedText;
      Point fSelection;
      public void dragStart(DragSourceEvent event) {
        fTextDragAndDropToken= null;
        try {

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      return;


    StyledText st= viewer.getTextWidget();
    dndService.removeMergedDropTarget(st);


    DragSource dragSource= (DragSource)st.getData(DND.DRAG_SOURCE_KEY);
    if (dragSource != null) {
      dragSource.dispose();
      st.setData(DND.DRAG_SOURCE_KEY, null);
    }


    fIsTextDragAndDropInstalled= false;
  }

View Full Code Here

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