// File: Form2.java (Module 11)
//
// Author: Rahul Simha
// Created: November 4, 1998.
//
// A simple form with a menu

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;

class NewFrame extends Frame {

  // Data.
  Panel centerpanel;       // For the questions.
  ScrollPane sc;           // For placing the centerpanel.

  TextField lastname_tf;   // To get the lastname.
  String lastname;

  TextField firstname_tf;  // Firstname.
  String firstname;

  TextField networth_tf;   // Net worth
  String networth;

  TextArea address_ta;     // Address (TextArea)
  String address;

  MenuBar mb;              // The menubar.


  // Constructor.
  public NewFrame (int width, int height)
  {
    this.setTitle ("Snoot Club Membership Form");
    this.setResizable (true);
    this.setBackground (Color.white);
    this.setSize (width, height);
    // this.setLayout (new BorderLayout());

    // First, a welcome message:
    Label L = new Label ("Please fill out the following form:");
    L.setFont (new Font ("Serif", Font.BOLD | Font.ITALIC, 15));
    L.setForeground (Color.blue);
    this.add (L, BorderLayout.NORTH);

    // Now the center panel.
    centerpanel = new Panel ();
    centerpanel.setLayout (new GridLayout (4,1));
    centerpanel.add (first_name ());
    centerpanel.add (last_name ());
    centerpanel.add (net_worth ());
    centerpanel.add (address ());

    // Next, the scrollpane.
    sc = new ScrollPane ();
    sc.add (centerpanel);
    this.add (sc, BorderLayout.CENTER);

    // The menubar
    mb = new MenuBar ();

    // Add a "File" menu with two items.
    Menu file_menu = new Menu ("File");
    file_menu.add ("Load");
    file_menu.add ("Quit");
    file_menu.addActionListener (
      new ActionListener () {
        public void actionPerformed (ActionEvent a)
	{
	  String item = a.getActionCommand ();
	  if (item.equals ("Load"))
	    load ();
	  else if (item.equals ("Quit"))
	    System.exit (0);
	}  
      }
    );
    mb.add (file_menu);

    // Add an "Action" menu with two items.
    Menu action_menu = new Menu ("Action");
    action_menu.add ("Submit");
    action_menu.add ("Clear");
    action_menu.addActionListener (
      new ActionListener () {
        public void actionPerformed (ActionEvent a)
	{
	  String item = a.getActionCommand ();
	  if (item.equals ("Submit"))
	    submit ();
	  else if (item.equals ("Clear")) {
	    firstname = "";  firstname_tf.setText (firstname);
	    lastname = "";  lastname_tf.setText (lastname);
	    networth = "";  networth_tf.setText (networth);
	    address = "";  address_ta.setText (address);
	  }
	}  
      }
    );
    mb.add (action_menu);

    // Note how a menubar is added to a Frame.
    this.setMenuBar (mb);

    // Finally, show the frame.
    this.setVisible (true);
  }

  // No-parameter constructor.
  public NewFrame () 
  {
    this (500, 300);
  }


  // Read in the first name.

  Panel first_name ()
  {
    Panel subpanel = new Panel ();

    Label L = new Label ("First Name");
    L.setFont (new Font ("SansSerif", Font.ITALIC, 20));
    subpanel.add (L);

    firstname_tf = new TextField (20);
    firstname_tf.setForeground (Color.blue);
    firstname_tf.addTextListener (
      new TextListener () {
        public void textValueChanged (TextEvent t)
	{
	  // Store in the string "firstname".
	  firstname = firstname_tf.getText();
	}  
      }
    );
    subpanel.add (firstname_tf);

    return subpanel;
  }


  // Get last name.

  Panel last_name ()
  {
    Panel subpanel = new Panel ();

    Label L = new Label ("Last Name");
    L.setFont (new Font ("SansSerif", Font.ITALIC, 20));
    subpanel.add (L);

    lastname_tf = new TextField (20);
    lastname_tf.setForeground (Color.blue);
    lastname_tf.addTextListener (
      new TextListener () {
        public void textValueChanged (TextEvent t)
	{
	  lastname = lastname_tf.getText();
	}  
      }
    );
    subpanel.add (lastname_tf);

    return subpanel;
  }


  // Get net worth.

  Panel net_worth ()
  {
    Panel subpanel = new Panel ();

    Label L = new Label ("Net worth (in millions)");
    L.setFont (new Font ("SansSerif", Font.ITALIC, 20));
    subpanel.add (L);

    networth_tf = new TextField (10);
    networth_tf.setForeground (Color.blue);
    networth_tf.addTextListener (
      new TextListener () {
        public void textValueChanged (TextEvent t)
	{
	  networth = networth_tf.getText();
	}  
      }
    );
    subpanel.add (networth_tf);

    return subpanel;
  }


  // Get address via a TextArea.

  Panel address ()
  {
    Panel subpanel = new Panel ();

    Label L = new Label ("Address");
    L.setFont (new Font ("SansSerif", Font.ITALIC, 20));
    subpanel.add (L);

    // Default size: 4 lines, 30 chars wide.
    address_ta = new TextArea (4, 30);
    address_ta.setForeground (Color.blue);
    address_ta.addTextListener (
      new TextListener () {
        public void textValueChanged (TextEvent t)
	{
	  address = address_ta.getText();
	}  
      }
    );
    subpanel.add (address_ta);

    return subpanel;
  }


  // Process data when ready.

  void submit ()
  {
    // Create a file by concatenating firstname and lastname.
    String filename = firstname + lastname;
    if (filename.length() == 0) return;

    // We will use a "Properties" instance to store data.
    Properties p = new Properties ();
    p.put ("firstname", firstname);
    p.put ("lastname", lastname);
    p.put ("networth", networth);
    p.put ("address", address);

    // Use the "save" feature of the Properties instance.
    try {
      FileOutputStream f = new FileOutputStream (filename);
      p.save (f, "Member information");
    }
    catch (IOException e) {
      System.out.println (e);
      System.exit (0);
    }
  }


  // Load information from an existing Properties file.

  Properties info;

  void load () 
  {
    // Create the filename.
    String filename = firstname + lastname;

    info = new Properties ();
    try {
      FileInputStream f = new FileInputStream (filename);
      info.load (f);
      // First and lastname are already entered.
      networth = info.getProperty ("networth");
      networth_tf.setText (networth);
      address = info.getProperty ("address");
      address_ta.setText (address);
    }
    catch (IOException e) {
      System.out.println ("No such file ... fatal error");
      System.exit (0);
    }
  }

}


public class Form2 {
  public static void main (String[] argv)
  {
    NewFrame nf = new NewFrame (500, 300);
  }
}