package net.hobnote;

import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
import javax.swing.border.EmptyBorder;
import javax.swing.border.LineBorder;

public class SayHello extends JFrame {

    private JPanel contentPane;
    JLabel lblHello = new JLabel("! ! !");
    JButton btnSayHello = new JButton("Say Hello");

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

    /**
     * Create the frame.
     */
    public SayHello() {
        setResizable(false);
        setTitle("SayHello");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        int F_WIDTH = 330;
        int F_HIGH = 280;
        setBounds(100, 100, F_WIDTH, F_HIGH);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(null);
        
        JPanel panel = new JPanel();
        panel.setBorder(new LineBorder(new Color(0, 0, 0)));
        panel.setBounds(6, 6, (F_WIDTH-20), 122);
        contentPane.add(panel);
        panel.setLayout(null);
        
        lblHello.setFont(new Font("Lucida Grande", Font.BOLD | Font.ITALIC, 16));
        lblHello.setHorizontalAlignment(SwingConstants.CENTER);
        lblHello.setBounds(6, 26, (F_WIDTH-24), 66);
        panel.add(lblHello);
        
        btnSayHello.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                String label_str;
                label_str = lblHello.getText();
                if ( label_str.equals("! ! !") ) {
                    lblHello.setText("Hello.");
                    btnSayHello.setText("! ! !");
                }
                else {
                    lblHello.setText("! ! !");
                    btnSayHello.setText("Say Hello");                   
                }
            }
        });
        int SHbtn_WIDTH = 160;
        int SHbtn_X = (F_WIDTH-SHbtn_WIDTH)/2;
        btnSayHello.setBounds(SHbtn_X, 140, SHbtn_WIDTH, 50);
        contentPane.add(btnSayHello);

        JButton btnExit = new JButton("Exit");
        btnExit.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                System.exit(0);
            }
        });

        int EXTbtn_WIDTH = 120;
        int EXTbtn_X = F_WIDTH-EXTbtn_WIDTH-24;
        int EXTbtn_HIGH = 30;
        int EXTbtn_Y = F_HIGH-EXTbtn_HIGH-40;
        btnExit.setBounds(EXTbtn_X, EXTbtn_Y, EXTbtn_WIDTH, EXTbtn_HIGH);
        contentPane.add(btnExit);
        
    }

}