//
// Name: Joe Smith
// ID: 0123456789
// Lab: 2
// Version: 1
//

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

public class GraphicalSavingsCalculator extends JFrame implements ActionListener
{
    private TextField targetSavingsFieldLabel;
    private TextField targetSavingsField;
    
    private TextField numberOfMonthsFieldLabel;
    private TextField numberOfMonthsField;
    
    private TextField interestRateFieldLabel;
    private TextField interestRateField;
    
    private Button calculateButton;

    public SavingsCalculator()
    {
	//Panel panel = new Panel();

	targetSavingsFieldLabel = new TextField("0", 20);
	targetSavingsField = new TextField("0", 20);
		
	numberOfMonthsFieldLabel = new TextField("0", 20);
	numberOfMonthsField = new TextField("0", 20);
	
	interestRateFieldLabel = new TextField("0", 20);
	interestRateField = new TextField("0", 20);
		
	calculateButton = new Button("Calculate");
	
	targetSavingsFieldLabel.setEditable(false);
	targetSavingsFieldLabel.setText("Target Savings:");
	
	interestRateFieldLabel.setEditable(false);
	interestRateFieldLabel.setText("Annual Interest Rate:");
		
	numberOfMonthsFieldLabel.setEditable(false);
	numberOfMonthsFieldLabel.setText("Number Of Months:");

	calculateButton.addActionListener(this);

        Container c = getContentPane();

        c.setLayout( new FlowLayout() );

	c.add(targetSavingsFieldLabel);
	c.add(targetSavingsField);
	c.add(numberOfMonthsFieldLabel);
	c.add(numberOfMonthsField);
	c.add(interestRateFieldLabel);
	c.add(interestRateField);
	c.add(calculateButton);
		
    }

    public static void main( String args[] )
    {
	SavingsCalculator sc = new SavingsCalculator();
	
	sc.setSize( 400, 500 );
	sc.setVisible( true );
	sc.addWindowListener(
			     new WindowAdapter() {
				 public void windowClosing( WindowEvent e )
				 {
				     System.exit( 0 );
				 }
			     }
			     );
    }

    public void actionPerformed(ActionEvent event)
    {
	if( event.getActionCommand() == "Calculate" )
	    {
		repaint();
	    }
    }

    public void paint(Graphics g)
    {
	// here is where you should call the calculateMonthlyPayment method
	// defined in the SavingsCalculator class (and written by you)

	// the code below just shows you how to display text strings
	g.drawString(targetSavingsField.getText(), 300, 160);
	g.drawString(numberOfMonthsField.getText(), 300, 180);
	g.drawString(interestRateField.getText(), 300, 200);
    }
}