ChartGenerator createNewChart(final GUIState simulation) { generator = createNewGenerator(); globalAttributes = new GlobalAttributes(); generator.addGlobalAttribute(globalAttributes); // it'll be added last // set up the simulation -- need a new name other than guiObjects: and it should be // a HashMap rather than a Bag. if (simulation.guiObjects == null) simulation.guiObjects = new Bag(); simulation.guiObjects.add(generator); final JFrame f = generator.createFrame(simulation); WindowListener wl = new WindowListener() { public void windowActivated(WindowEvent e) {} public void windowClosed(WindowEvent e) {} public void windowClosing(WindowEvent e) { generator.quit(); } public void windowDeactivated(WindowEvent e) {} public void windowDeiconified(WindowEvent e) {} public void windowIconified(WindowEvent e) {} public void windowOpened(WindowEvent e) {} }; f.addWindowListener(wl); f.setVisible(true); return generator; }