Examples.java Source code

Introduction

Here is the source code for Examples.java

Source

/*
Definitive Guide to Swing for Java 2, Second Edition
By John Zukowski       
ISBN: 1-893115-78-X
Publisher: APress
*/

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Polygon;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.Icon;
import javax.swing.JButton;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class Examples {
    public static void main(String args[]) {

        JFrame frame = new JFrame("Example Popup");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        Container contentPane = frame.getContentPane();
        contentPane.setLayout(new GridLayout(0, 1));

        JFrame frame2 = new JFrame("Desktop");
        final JDesktopPane desktop = new JDesktopPane();
        frame2.getContentPane().add(desktop);
        JButton pick = new JButton("Pick");
        pick.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent actionEvent) {
                System.out.println("Hi");
            }
        });
        frame2.getContentPane().add(pick, BorderLayout.SOUTH);

        JButton messagePopup = new JButton("Message");
        contentPane.add(messagePopup);
        messagePopup.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent actionEvent) {
                Component source = (Component) actionEvent.getSource();
                JOptionPane.showMessageDialog(source, "Printing complete");
                JOptionPane.showInternalMessageDialog(desktop, "Printing complete");
            }
        });

        JButton confirmPopup = new JButton("Confirm");
        contentPane.add(confirmPopup);
        confirmPopup.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent actionEvent) {
                Component source = (Component) actionEvent.getSource();
                JOptionPane.showConfirmDialog(source, "Continue printing?");
                JOptionPane.showInternalConfirmDialog(desktop, "Continue printing?");
            }
        });

        JButton inputPopup = new JButton("Input");
        contentPane.add(inputPopup);
        inputPopup.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent actionEvent) {
                Component source = (Component) actionEvent.getSource();
                JOptionPane.showInputDialog(source, "Enter printer name:");
                // Moons of Neptune
                String smallList[] = { "Naiad", "Thalassa", "Despina", "Galatea", "Larissa", "Proteus", "Triton",
                        "Nereid" };
                JOptionPane.showInternalInputDialog(desktop, "Pick a printer", "Input",
                        JOptionPane.QUESTION_MESSAGE, null, smallList, "Triton");
                // Moons of Saturn - includes two provisional designations to
                // make 20
                String bigList[] = { "Pan", "Atlas", "Prometheus", "Pandora", "Epimetheus", "Janus", "Mimas",
                        "Enceladus", "Tethys", "Telesto", "Calypso", "Dione", "Helene", "Rhea", "Titan", "Hyperion",
                        "Iapetus", "Phoebe", "S/1995 S 2", "S/1981 S 18" };
                //        Object saturnMoon = JOptionPane.showInputDialog(source, "Pick
                // a printer", "Input", JOptionPane.QUESTION_MESSAGE, null,
                // bigList, "Titan");
                Object saturnMoon = JOptionPane.showInputDialog(source, "Pick a printer", "Input",
                        JOptionPane.QUESTION_MESSAGE, null, bigList, null);
                System.out.println("Saturn Moon: " + saturnMoon);
            }
        });

        JButton optionPopup = new JButton("Option");
        contentPane.add(optionPopup);
        optionPopup.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent actionEvent) {
                Component source = (Component) actionEvent.getSource();

                Icon greenIcon = new DiamondIcon(Color.green);
                Icon redIcon = new DiamondIcon(Color.red);
                Object iconArray[] = { greenIcon, redIcon };
                JOptionPane.showOptionDialog(source, "Continue printing?", "Select an Option",
                        JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE, null, iconArray, iconArray[1]);

                Icon blueIcon = new DiamondIcon(Color.blue);
                Object stringArray[] = { "Do It", "No Way" };
                JOptionPane.showInternalOptionDialog(desktop, "Continue printing?", "Select an Option",
                        JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE, blueIcon, stringArray,
                        stringArray[0]);
            }
        });

        frame.setSize(300, 200);
        frame.setVisible(true);
        frame2.setSize(300, 200);
        frame2.setVisible(true);
    }
}

class DiamondIcon implements Icon {
    private Color color;

    private boolean selected;

    private int width;

    private int height;

    private Polygon poly;

    private static final int DEFAULT_WIDTH = 10;

    private static final int DEFAULT_HEIGHT = 10;

    public DiamondIcon(Color color) {
        this(color, true, DEFAULT_WIDTH, DEFAULT_HEIGHT);
    }

    public DiamondIcon(Color color, boolean selected) {
        this(color, selected, DEFAULT_WIDTH, DEFAULT_HEIGHT);
    }

    public DiamondIcon(Color color, boolean selected, int width, int height) {
        this.color = color;
        this.selected = selected;
        this.width = width;
        this.height = height;
        initPolygon();
    }

    private void initPolygon() {
        poly = new Polygon();
        int halfWidth = width / 2;
        int halfHeight = height / 2;
        poly.addPoint(0, halfHeight);
        poly.addPoint(halfWidth, 0);
        poly.addPoint(width, halfHeight);
        poly.addPoint(halfWidth, height);
    }

    public int getIconHeight() {
        return height;
    }

    public int getIconWidth() {
        return width;
    }

    public void paintIcon(Component c, Graphics g, int x, int y) {
        g.setColor(color);
        g.translate(x, y);
        if (selected) {
            g.fillPolygon(poly);
        } else {
            g.drawPolygon(poly);
        }
        g.translate(-x, -y);
    }
}