/*
 * File: TempConvert.java
 *
 * This class displays two (2) temperatures, then increments the temperatures
 * and displays the new temperatures.
 *
 */
/**
 *
 * @author put-your-name-here
 *
 */

import java.awt.BorderLayout;
import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JLabel;
import javax.swing.JTextField;
import java.awt.Font;
import javax.swing.JButton;
import java.awt.Color;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

//import java.text.NumberFormat;
import java.text.DecimalFormat;

public class Main extends JFrame {

	private JPanel contentPane;
	private JTextField tempStr;
	private JTextField farenheitUser;
	private JTextField celsiusOut;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					Main frame = new Main();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public Main() {
		setTitle("Temperature Conversion App");
		DecimalFormat myFormat = new DecimalFormat("###.0");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 450, 300);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		contentPane.setLayout(new BorderLayout(0, 0));
		setContentPane(contentPane);
		
		JPanel panel = new JPanel();
		panel.setBackground(Color.PINK);
		contentPane.add(panel, BorderLayout.CENTER);
		panel.setLayout(null);
		
		JLabel lblTemperature = new JLabel("Temperature:");
		lblTemperature.setBackground(Color.BLUE);
		lblTemperature.setForeground(Color.WHITE);
		lblTemperature.setFont(new Font("Calibri", Font.BOLD, 18));
		lblTemperature.setBounds(20, 11, 110, 30);
		panel.add(lblTemperature);
		
		tempStr = new JTextField();
		tempStr.setBounds(140, 11, 26, 32);
		panel.add(tempStr);
		tempStr.setColumns(10);
		
		JButton btnConvertToCentigrade = new JButton("Convert to Centigrade");
		btnConvertToCentigrade.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				double celsius = 0.0, farenheit = 0.0;
				farenheit = Double.parseDouble(tempStr.getText());
				farenheitUser.setText(tempStr.getText());
				celsius = (farenheit - 32) / 9 * 5;
				celsiusOut.setText(myFormat.format(celsius)); 
			}
		});
		btnConvertToCentigrade.setBounds(20, 52, 146, 23);
		panel.add(btnConvertToCentigrade);
		
		farenheitUser = new JTextField();
		farenheitUser.setBounds(20, 86, 47, 32); // x, y w, h
		panel.add(farenheitUser);
		farenheitUser.setColumns(10);
		
		JLabel lblNewLabel = new JLabel("Farenheit converts to");
		lblNewLabel.setFont(new Font("Calibri", Font.BOLD, 18));
		lblNewLabel.setBounds(77, 85, 400, 32);
		panel.add(lblNewLabel);
		
		celsiusOut = new JTextField();
		celsiusOut.setBounds(20, 150, 47, 32);
		panel.add(celsiusOut);
		celsiusOut.setColumns(10);
		
		JLabel lblCelcius = new JLabel("Celsius");
		lblCelcius.setFont(new Font("Calibri", Font.BOLD, 18));
		lblCelcius.setBounds(77, 150, 200, 32);
		panel.add(lblCelcius);
	}
}