/** {@inheritDoc} */
  @Override
  public void paste(IPasteContext context) {
    // already verified, that pasting is allowed just directly in the diagram
    PictogramElement[] pes = context.getPictogramElements();
    Diagram diagram = (Diagram) pes[0];

    // get the PictogramElements from the clipboard and the linked business object.
    Object[] objects = getFromClipboard();
    for (Object object : objects) {
      PictogramElement pictogramElement = (PictogramElement) object;
      rootCon boRef = (rootCon) getBusinessObjectForPictogramElement(pictogramElement);
      rootCon bo = EcoreUtil.copy(boRef);
      addBusinessObjectToContainer(bo, pictogramElement);

      // create a new AddContext for the creation of a new shape.
      AddContext ac = new AddContext(new AddContext(), bo);
      ac.setLocation(0, 0); // for simplicity paste at (0, 0)
      ac.setTargetContainer(diagram); // paste on diagram
      // copy all properties from the shape (e.g. ALIAS etc.)
      for (Property prop : pictogramElement.getProperties()) {
        ac.putProperty(prop.getKey(), prop.getValue());
      }
      getFeatureProvider().addIfPossible(ac);
    }
  }
 public static String getToolTip(GraphicsAlgorithm ga) {
   if (ga != null) {
     for (Property prop : ga.getProperties()) {
       if (GraphitiConstants.TOOLTIP_PROPERTY.equals(prop.getKey())) return prop.getValue();
     }
   }
   return null;
 }