Document.java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

import org.python.core.*;
import org.python.util.PythonInterpreter;

public class Document extends JFrame implements ActionListener
{
	private JTextArea ta;
	private int count;
	private JMenuBar menuBar;
	private JMenu fileM,editM,helpM,scriptsM;
	private JScrollPane scpane;
	private JMenuItem exitI,cutI,copyI,pasteI,selectI,saveI,loadI,addScriptI,revScriptI,aboutI;
	private String pad;
	private JToolBar toolBar;
	public Document()
	{
	    super("jTxt+");
	    setSize(600, 600);
	    setLocationRelativeTo(null);
	    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	    Container pane = getContentPane();
	    pane.setLayout(new BorderLayout());
	
	    count = 0;
	    pad = " ";
	    ta = new JTextArea(); //textarea
	    menuBar = new JMenuBar(); //menubar
	    fileM = new JMenu("File"); //file menu
	    editM = new JMenu("Edit"); //edit menu
	    scriptsM = new JMenu("Scripts"); //scripts menu
	    helpM = new JMenu("Help"); //view menu
	    scpane = new JScrollPane(ta); //scrollpane  and add textarea to scrollpane
	    exitI = new JMenuItem("Exit");
	    cutI = new JMenuItem("Cut");
	    copyI = new JMenuItem("Copy");
	    pasteI = new JMenuItem("Paste");
	    selectI = new JMenuItem("Select All"); //menuitems
	    saveI = new JMenuItem("Save"); //menuitems
	    loadI = new JMenuItem("Load"); //menuitems
	    aboutI = new JMenuItem("About"); //menuitems
	    addScriptI = new JMenuItem("Add new");
	    revScriptI = new JMenuItem("Reverse Text");
	    toolBar = new JToolBar();
	
	    ta.setLineWrap(true);
	    ta.setWrapStyleWord(true);
	
	    setJMenuBar(menuBar);
	    menuBar.add(fileM);
	    menuBar.add(editM);
	    menuBar.add(scriptsM);
	    menuBar.add(helpM);
			
			// file menu items
	    fileM.add(saveI);
	    fileM.add(loadI);
	    fileM.add(exitI);
			
			// edit menu items
	    editM.add(cutI);
	    editM.add(copyI);
	    editM.add(pasteI);        
	    editM.add(selectI);
	    
	    // scripts menu items
	    scriptsM.add(addScriptI);
	    scriptsM.add(revScriptI);
			
			// help menu items
	    helpM.add(aboutI);
			
			// keyboard shortcuts
	    saveI.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, ActionEvent.CTRL_MASK));
	    loadI.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_L, ActionEvent.CTRL_MASK));
	    cutI.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X, ActionEvent.CTRL_MASK));
	    copyI.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C, ActionEvent.CTRL_MASK));
	    pasteI.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V, ActionEvent.CTRL_MASK));
	    selectI.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A, ActionEvent.CTRL_MASK));
	
	    pane.add(scpane,BorderLayout.CENTER);
	    pane.add(toolBar,BorderLayout.SOUTH);
	
	    saveI.addActionListener(this);
	    loadI.addActionListener(this);
	    exitI.addActionListener(this);
	    cutI.addActionListener(this);
	    copyI.addActionListener(this);
	    pasteI.addActionListener(this);
	    selectI.addActionListener(this);
	    aboutI.addActionListener(this);
	    revScriptI.addActionListener(this);
			
			//setText();
			
	    setVisible(true);
	}
	public void actionPerformed(ActionEvent e) 
	{
	    JMenuItem choice = (JMenuItem) e.getSource();
	    if (choice == saveI)
	    {
	        //not yet implmented
	    }
	    else if (choice == exitI)
	        System.exit(0);
	    else if (choice == cutI)
	    {
	        pad = ta.getSelectedText();
	        ta.replaceRange("", ta.getSelectionStart(), ta.getSelectionEnd());
	    }
	    else if (choice == copyI)
	        pad = ta.getSelectedText();
	    else if (choice == pasteI)
	        ta.insert(pad, ta.getCaretPosition());
	    else if (choice == selectI)
	        ta.selectAll();
	    else if (choice == revScriptI)
	    {		
	    		String txt = RunScript(ta.getText());
	    		setText(txt);
	    }
	    else if (e.getSource() == aboutI)
	    {
	        // show dialog box
	        JOptionPane.showMessageDialog(this,
    									"jTxt+ a simple text editor");
	    }
	}
	public void setText(String TextToSet)
	{
		ta.setText(TextToSet);
	}
	public String RunScript(String sendText) {
    	PythonInterpreter interpreter = new PythonInterpreter();
			String scriptname = "script.py";
			interpreter.execfile(scriptname);
			PyObject someFunc = interpreter.get("helloWorld");
			PyObject result = someFunc.__call__(new PyString(sendText));
			String realResult = (String) result.__tojava__(String.class);
			return realResult;
	}
	public static void main(String[] args) 
	{
	    new Document();
	}
}