WidgetArea draggableArea = new WidgetArea(context.draggable, null);
for (Widget widget : context.selectedWidgets) {
WidgetArea widgetArea = new WidgetArea(widget, null);
Widget proxy = new SimplePanel();
proxy.setPixelSize(widget.getOffsetWidth(), widget.getOffsetHeight());
proxy.addStyleName(DragClientBundle.INSTANCE.css().proxy());
container.add(proxy, widgetArea.getLeft() - draggableArea.getLeft(),
widgetArea.getTop() - draggableArea.getTop());
}
return container;