label = ((Node) graphic).getLabel();
// } else if (graphic instanceof Line) {
// label = ((Line)graphic).getLabel();
}
if (receiver instanceof PlugIn) {
Component comp = ((PlugIn) receiver).getComponent();
if (comp instanceof Layer) {
if (graphic != null && label != null) {
((Layer) comp).fireRequestToolTip("Node " + label);
toolTipUp = true;
} else if (toolTipUp) {