/** All selection must be named model objects. */
@Override
public void dragStart(DragSourceEvent event) {
// Workaround for 1GEUS9V
DragSource dragSource = (DragSource) event.widget;
Control control = dragSource.getControl();
if (control != control.getDisplay().getFocusControl()) {
event.doit = false;
return;
}
event.doit = canDrag();
}
/** Returns the data to be transferred in a drag and drop operation. */
@Override
public void dragSetData(DragSourceEvent event) {
if (event.doit == false) return;
if (ModelDataTransfer.getInstance().isSupportedType(event.dataType)) {
event.data = getSelectedModelObjects();
fDragData = event.data;
return;
}
if (TextTransfer.getInstance().isSupportedType(event.dataType)) {
event.data =
createTextualRepresentation((IStructuredSelection) fSelectionProvider.getSelection());
fDragData = null;
return;
}
}
/**
* This implementation of <code>dragStart</code> will create a default image that will be used
* during the drag. The image should be disposed when the drag is completed in the <code>
* TableDragSourceEffect.dragFinished</code> method.
*
* <p>Subclasses that override this method should call <code>super.dragStart(event)</code> to use
* the image from the default implementation.
*
* @param event the information associated with the drag start event
*/
public void dragStart(DragSourceEvent event) {
event.image = getDragSourceImage(event);
}
/** @param e the event */
public void dragExit(DragSourceEvent e) {
System.out.println("draglabel exit " + e);
DragSourceContext context = e.getDragSourceContext();
}