Notepad in Java version1 built4

[uit...@yahoo.com]

//future enhancements : use of textpane

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.util.*; // necesary for change listener interface
import javax.swing.event.*; // necesary for change listener interface

class MyNotepad extends JFrame
{
JMenuBar topBar ;
JMenu menuFile , menuEdit , menuHelp ;
JMenuItem itmNew , itmOpen , itmSave , itmClose , itmCopy , itmCut ,
itmPaste , itmAbout ;
JTextArea tAreaEditor ;
JFileChooser myFileChooser;
Container c ;
JTabbedPane myTabbedPane ;
//ImageIcon icon = createImageIcon("images/middle.gif");

MyNotepad ()
{
super("My Notepad ");
myTabbedPane = new JTabbedPane();

c = getContentPane();
c.setLayout(new FlowLayout());

//creates the new file chooser
myFileChooser = new JFileChooser();

topBar = new JMenuBar ();

// adding contents for the menu --> file

menuFile = new JMenu ("File");
menuFile .setMnemonic(KeyEvent.VK_F);

itmNew = new JMenuItem ("New");
itmNew .setMnemonic(KeyEvent.VK_N);

itmOpen = new JMenuItem ("Open");
itmSave = new JMenuItem ("Save");
itmClose = new JMenuItem ("Close");

menuFile .add(itmNew );
menuFile .add(itmOpen );
menuFile .add( itmSave );
menuFile .add(itmClose );

topBar .add(menuFile );
//*********************************************

// adding contents for the menu --> Edit

menuEdit = new JMenu ("Edit");
menuEdit .setMnemonic(KeyEvent.VK_E);
itmCut = new JMenuItem ("Cut");
itmCopy = new JMenuItem ("Copy");
itmPaste = new JMenuItem ("Paste");

menuEdit .add(itmCut );
menuEdit .add(itmCopy );
menuEdit .add(itmPaste );

topBar .add(menuEdit );

//*********************************************

menuHelp = new JMenu ("Help");
itmAbout = new JMenuItem ("About");

menuHelp .add(itmAbout );
topBar .add(menuHelp );
//*********************************************

//ADDING ITEM LISTENERS
//----------------------------------------
MyMenuListener mm1 =new MyMenuListener ();

itmNew .addActionListener(mm1);
itmOpen .addActionListener(mm1);
// edit listeners

itmCut.addActionListener(mm1);
itmPaste.addActionListener(mm1);
itmCopy.addActionListener(mm1);

// Help listeners

itmAbout.addActionListener(mm1);

c.add(topBar);

//_________________________________________________

//add the first tabbed pane
//_________________________________________________

JComponent panel1 = mm1 .makeTextPanel();
//myTabbedPane.fireStateChanged();
myTabbedPane.addTab(" Document 1", panel1);

c.add(myTabbedPane);

}

private class MyMenuListener implements ActionListener, ChangeListener
{

int i=1;
JTextArea tAreaEditor ;

public void stateChanged(ChangeEvent e)
{
System.out.println(e);
}

public void actionPerformed(ActionEvent e)
{

if( e.getSource() == itmNew )
{
i++;
JComponent panel1 = makeTextPanel();
myTabbedPane.addTab(" Document "+i, panel1);
}
if( e.getSource() == itmOpen )
myFileChooser.showOpenDialog(c) ;
if( e.getSource() == itmCut )
//myTabbedPane.getSelectedComponent() .tAreaEditor .cut();
//tAreaEditor.cut();

if( e.getSource() == itmCopy )
//myTabbedPane.getSelectedComponent() .tAreaEditor .copy();
//tAreaEditor.copy();

if( e.getSource() == itmPaste )
{

//System.out.println(tAreaEditor .paste().toString());
//myTabbedPane.getSelectedComponent() .tAreaEditor .paste();
//tAreaEditor.paste();

}

if( e.getSource() == itmAbout )
JOptionPane.showMessageDialog(null, "name: Justin"+
"\n\nLicense:GNU GPL"+
"\n\ne-mail: just...@gmail.com");

}

protected JComponent makeTextPanel()
{
JPanel panel = new JPanel();
tAreaEditor = new JTextArea (20,40);

tAreaEditor .setLineWrap(true) ;

JScrollPane myScrollPane = new JScrollPane(tAreaEditor );

panel.add( myScrollPane );

return panel;
}

}

}
class MyNotepadTest
{
public static void main(String args[])
{
MyNotepad m1 = new MyNotepad ();
m1.setSize(480,400);
m1.setVisible(true);
m1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}