private boolean dragging;
private int dragStartX;
private int dragStartY;
private VGraphComponent parent;
private Widget node;
<BUG>public NodeHandler(Widget node, VGraphComponent parent) {
this.node = node;</BUG>
this.parent = parent;
node.addDomHandler(this, MouseDownEvent.getType());
node.addDomHandler(this, MouseMoveEvent.getType());

private boolean dragging;
private int dragStartX;
private int dragStartY;
private VGraphComponent parent;
private Widget node;
NodeHandler(Widget node, VGraphComponent parent) {
this.node = node;
this.parent = parent;
node.addDomHandler(this, MouseDownEvent.getType());
node.addDomHandler(this, MouseMoveEvent.getType());
