if(alreadyPaintedFlag==0){
graph.insertVertex(parentVertex, null,Messages.getString("PetriNet.Resources.NoRolesDefined"),10,10,150,30, "rounded=1;opacity=0;fontStyle=1;fontColor=black");
}
// Create Listener, first parameter in constructor is the observed graph
mxIEventListener mySelectListener = new selectListener(graph);
// add Listener as CHANGE-Listener
graph.getSelectionModel().addListener(mxEvent.CHANGE, mySelectListener);
graphComponent = new mxGraphComponent(graph);
temp_Role_graph = graph;