Notepad.java

// indicate "base" layer

/**
 *This is a JAVA� program for writing, opening, saving, editing the documents,
 *has the ability to copy, cut, paste & select all text in the JTextArea,
 *has @see ExampleFileFilter class (From SUN� -http://java.sun.com-) for filter the file
 *has a print class (from AarbTeam2000� -http://wwww.arabteam2000.com-) for printing the documents
 */


//import the packages for using the classes in them into the program
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

/**
 *A PUBLIC CLASS FOR NOTEPAD.JAVA
 */
public class Notepad extends JFrame{
    //for using the methods in these classes
    public Actions actions = new Actions(this);
    public Center center = new Center(this);

    //declaration of the private variables used in the program
    //create the text area
    private JTextArea textArea;
    //create the Menu Bar that contains the JMenu "filE, ediT, vieW, formaT, helP"
    private JMenuBar Menubar;
    //Create the menu that contains the items
    private JMenu filE, ediT, vieW, formaT, helP;
    //Create the menu items
    private JMenuItem neW, opeN, savE, saveAS, prinT, exiT, fonT, abouT,
    cuT, copY, pastE, selectALL;
    private JCheckBoxMenuItem lineWraP;
    //Create the Tool Bar that contains the JButton
    private JToolBar toolBar;
    //Create the buttons
    private JButton newButton, openButton, saveButton, saveAsButton, printButton,
    fontButton, aboutButton;
    //Create Scroll pane (JScrollPane) for the JTextArea
    private JScrollPane scrollpane;

    //for using lineWrap & textArea @Actions.java
    public JCheckBoxMenuItem getLineWrap(){
        return lineWraP;
    }
    public JTextArea getTextArea(){
        return textArea;
    }
    //Constructor of Notepad
    public Notepad(){
        //set the title for Notepad and set the size for it.
        setTitle("Untitled - JAVA� Notepad");
        setSize(800,600);

        //get the graphical user interface components display area
        Container cp = getContentPane();
        /**
         *adding the text area,
         *adding the tool bar &
         *adding the scroll pane to the container
         */
        cp.add(textArea = new JTextArea());
        cp.add("North", toolBar = new JToolBar("Tool Bar"));
        cp.add(scrollpane = new JScrollPane(textArea));

        //for setting the menu bar
        setJMenuBar(Menubar= new JMenuBar());
        //adding file, edit, view, format, help to the menu bar
        Menubar.add(filE   = new JMenu("File"));
        Menubar.add(ediT   = new JMenu("Edit"));
        Menubar.add(vieW   = new JMenu("View"));
        Menubar.add(formaT = new JMenu("Format"));
        Menubar.add(helP   = new JMenu("Help"));

        /**
         *adding neW, opeN, savE, saveAS, prinT & exiT to the filE Menu,
         *adding a small image icon to the menu item &
         *adding separator between the menu item
         */
        filE.add(neW    = new JMenuItem("New", new ImageIcon(this.getClass().getResource("images/new.gif"))));
        filE.add(opeN   = new JMenuItem("Open", new ImageIcon(this.getClass().getResource("images/open.gif"))));
        filE.add(savE   = new JMenuItem("Save", new ImageIcon(this.getClass().getResource("images/save.gif"))));
        filE.add(saveAS = new JMenuItem("Save As", new ImageIcon(this.getClass().getResource("images/saveAs.gif"))));
        filE.add(prinT  = new JMenuItem("Print", new ImageIcon(this.getClass().getResource("images/print.gif"))));
        filE.add(exiT   = new JMenuItem("Exit")); //, new ImageIcon(this.getClass().getResource("images/exit.gif"))));  -- exit.gif missing
        filE.insertSeparator(4);
        filE.insertSeparator(6);

        /**
         *adding undO, redO, cuT, copY, pastE, finD, findNexT & selectALL to the ediT Menu,
         *adding a small image icon to the menu item &
         *adding separator between the menu item
         */
        ediT.add(selectALL= new JMenuItem("Select All"));
        //ediT.insertSeparator(2);
        //ediT.insertSeparator(6);

        /**
         *adding lineWraP & fonT to the formaT Menu,
         *adding abouT to the helP Menu &
         *adding a small image icon to the menu item
         */
        formaT.add(lineWraP = new JCheckBoxMenuItem("Line Wrap"));
        formaT.add(fonT = new JMenuItem("Font", new ImageIcon(this.getClass().getResource("images/font.gif"))));
        helP.add(abouT = new JMenuItem("About Notepad", new ImageIcon(this.getClass().getResource("images/about.gif"))));

        /**
         *allowing the file   menu to be selected by pressing ALT + F
         *allowing the edit   menu to be selected by pressing ALT + E
         *allowing the view   menu to be selected by pressing ALT + V
         *allowing the format menu to be selected by pressing ALT + O
         *allowing the help   menu to be selected by pressing ALT + H
         */
        filE.setMnemonic('f');
        ediT.setMnemonic('e');
        vieW.setMnemonic('v');
        formaT.setMnemonic('o');
        helP.setMnemonic('h');

        /**
         *allowing the neW       menu item to be selected by pressing ALT + N
         *allowing the opeN      menu item to be selected by pressing ALT + O
         *allowing the savE      menu item to be selected by pressing ALT + S
         *allowing the prinT     menu item to be selected by pressing ALT + P
         *allowing the exiT      menu item to be selected by pressing ALT + F4
         *allowing the cuT       menu item to be selected by pressing ALT + X
         *allowing the copY      menu item to be selected by pressing ALT + C
         *allowing the pastE     menu item to be selected by pressing ALT + V
         *allowing the selectAll menu item to be selected by pressing ALT + A
         */
        neW.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N, ActionEvent.CTRL_MASK));
        opeN.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O, ActionEvent.CTRL_MASK));
        savE.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, ActionEvent.CTRL_MASK));
        prinT.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_P, ActionEvent.CTRL_MASK));
        exiT.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F4, ActionEvent.CTRL_MASK));
        selectALL.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A, ActionEvent.CTRL_MASK));

        /**
         *adding newButton, openButton, saveButton, saveAsButton, printButton, undoButton,
         *redoButton, cutButton, copyButton, pasteButton, fontButton & aboutButton to the tool bar,
         *adding a small image icon to the menu item &
         *adding separator between the button
         */
        toolBar.add(newButton   = new JButton(new ImageIcon(this.getClass().getResource("images/new.gif"))));
        toolBar.add(openButton  = new JButton(new ImageIcon(this.getClass().getResource("images/open.gif"))));
        toolBar.add(saveButton  = new JButton(new ImageIcon(this.getClass().getResource("images/save.gif"))));
        toolBar.add(saveAsButton= new JButton(new ImageIcon(this.getClass().getResource("images/saveAs.gif"))));
        toolBar.add(printButton = new JButton(new ImageIcon(this.getClass().getResource("images/print.gif"))));
        toolBar.addSeparator();
        toolBar.add(fontButton  = new JButton(new ImageIcon(this.getClass().getResource("images/font.gif"))));
        toolBar.add(aboutButton = new JButton(new ImageIcon(this.getClass().getResource("images/about.gif"))));

        //adding a tool tip text to the button for descriping the image icon.
        newButton.setToolTipText("New");
        openButton.setToolTipText("Open");
        saveButton.setToolTipText("Save");
        saveAsButton.setToolTipText("Save As");
        printButton.setToolTipText("Print");
        fontButton.setToolTipText("Font");
        aboutButton.setToolTipText("About Notepad");

        /**
         *setting the default close operation to false &
         *using own action (exiT action @Actions.java)
         */
        setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
        addWindowListener(new WindowAdapter(){
            public void windowClosing(WindowEvent e){
                actions.exiT();
            }
        });
        /**
         *adding action listener for menu item: neW, opeN, savE, saveAS, prinT, exiT,
         *redO, undO, copY, cuT, pastE, finD, findNexT, selectALL, lineWraP, fonT & abouT
         *the actions was written @Actions.java
         */
        neW.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.neW();
            }
        });
        opeN.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.opeN();
            }
        });
        savE.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.savE();
            }
        });
        saveAS.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.saveAs();
            }
        });
        prinT.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.prinT();
            }
        });
        exiT.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.exiT();
            }
        });
        selectALL.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.selectALL();
            }
        });
        lineWraP.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.lineWraP();
            }
        });
        fonT.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.fonT();
            }
        });
        abouT.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.abouT();
            }
        });

        /**
         *adding action listener for the button in the tool bar: newButton, openButton,
         *saveButton, saveAsButton, printButton, redoButton, undoButton, copyButton,
         *cutButton, pasteButton, findButton, selectALL, lineWraP, fontButton & aboutButton
         *the actions was written @Actions.java
         */
        newButton.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.neW();
            }
        });
        openButton.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.opeN();
            }
        });
        saveButton.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.savE();
            }
        });
        saveAsButton.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.saveAs();
            }
        });
        printButton.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.prinT();
            }
        });
        fontButton.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.fonT();
            }
        });
        aboutButton.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                actions.abouT();
            }
        });

        /**
         *Setting the Line Wrap & Wrap Style Word features are true
         */
        textArea.setLineWrap(true);
        textArea.setWrapStyleWord(true);
        /**
         *for making the program at the center,
         *@see Center.java
         */
        center.nCenter();
        show();
    }
    //Main Method
    public static void main(String[] args){
        new Notepad();

    }
}