// RainfallGUI.java - Provides a GUI interface to the RainfallStats class.
// Fred Swartz - 2005 - Dec - 08

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

public class RainfallGUI2 extends JFrame {
    
    //================================================ my instance variables
    private RainfallStats _rainLogic;  // Keeps data, calculates statistics.
    
    private JTextField _averageTF      = new JTextField(4);
    private JTextField _numberTF       = new JTextField(4);
    private JTextArea  _rainfallDataTA = new JTextArea(5, 20);
    private JTextField _totalTF        = new JTextField(4);
    
    //========================================================== constructor
    public RainfallGUI2() {
        //... Set up the model / logic
        _rainLogic = new RainfallStats(500);  // Room for 500 data points.
        
        //=========================================================== layout
        //... Result Panel
        JPanel resultPanel = new JPanel();
        resultPanel.setLayout(new GridLayout(3, 2, 5, 5));
        resultPanel.add(new JLabel("Total"));
        resultPanel.add(_totalTF);
        resultPanel.add(new JLabel("Number"));
        resultPanel.add(_numberTF);
        resultPanel.add(new JLabel("Average"));
        resultPanel.add(_averageTF);
        
        //... Build content pane
        JPanel content = new JPanel();
        content.setLayout(new BorderLayout(5, 5));
        content.add(new JScrollPane(_rainfallDataTA), BorderLayout.CENTER);
        content.add(resultPanel, BorderLayout.SOUTH);
        
        //... Set the window characteristics
        setContentPane(content);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setTitle("Rain Statistics");
        pack();
    }
}