Graph Script Code

package ls.graph.ui;

import java.awt.event.KeyEvent;

import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.KeyStroke;

import ls.graph.script.Algorithm;
import ls.graph.script.AlgorithmListener;

public class Menu extends JMenuBar implements AlgorithmListener
{
	private static final long serialVersionUID = 1L;
	
	MainWindow mainWindow = null;
	ExitAction actExit = null;
	LoadScriptAction actLoad = null;
	SaveScriptAction actSave = null;
	SaveGraphAction actSaveGraph = null;
	LoadGraphAction actLoadGraph = null;
	JMenuItem itmExit,itmLoad,itmSave,itmSaveGraph,itmLoadGraph;
	
	Menu(MainWindow w)
	{
		super();
		this.mainWindow = w;
		initComponents();
	}
	
	private void initComponents()
	{
		JMenu menu = new JMenu("System");
		menu.setMnemonic(KeyEvent.VK_Y);
		actExit = new ExitAction(mainWindow);
		itmExit = new JMenuItem(actExit);
		itmExit.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F4,KeyEvent.ALT_MASK));
		menu.add(itmExit);
		this.add(menu);
		menu = new JMenu("Script");
		menu.setMnemonic(KeyEvent.VK_S);
		actLoad = new LoadScriptAction(mainWindow,mainWindow);
		itmLoad = new JMenuItem(actLoad);
		itmLoad.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_L,KeyEvent.CTRL_MASK));
		menu.add(itmLoad);
		actSave = new SaveScriptAction(mainWindow,mainWindow);
		itmSave = new JMenuItem(actSave);
		itmSave.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,KeyEvent.CTRL_MASK));
		menu.add(itmSave);
		this.add(menu);
		
		menu = new JMenu("Graph");
		menu.setMnemonic(KeyEvent.VK_G);
		actSaveGraph = new SaveGraphAction(mainWindow,mainWindow);
		itmSaveGraph = new JMenuItem(actSaveGraph);
		menu.add(itmSaveGraph);
		actLoadGraph = new LoadGraphAction(mainWindow,mainWindow);
		itmLoadGraph = new JMenuItem(actLoadGraph);
		menu.add(itmLoadGraph);
		this.add(menu);
	}
	
	public void executionEnded(Algorithm alg)
	{
		itmExit.setEnabled(true);
		itmLoad.setEnabled(true);
		itmSave.setEnabled(true);
	}

	public void executionStarted(Algorithm alg)
	{
		itmExit.setEnabled(false);
		itmLoad.setEnabled(false);
		itmSave.setEnabled(false);
	}

	public void startingStep(int stepIndex)
	{}

} //end of Menu class