YAxisDiffAlign.java Source code

Introduction

Here is the source code for YAxisDiffAlign.java

Source

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

import java.awt.Component;
import java.awt.Container;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Insets;

import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class YAxisDiffAlign {
    private static Container makeIt(String title, boolean more) {
        JPanel container = new JPanel() {
            public void paintComponent(Graphics g) {
                super.paintComponent(g);
                Insets insets = getInsets();
                int width = getWidth() - insets.left - insets.right;
                int halfWidth = width / 2 + insets.left;
                int height = getHeight();
                int halfHeight = height / 2 + insets.top;
                g.drawLine(halfWidth, 0, halfWidth, height);
            }
        };
        container.setBorder(BorderFactory.createTitledBorder(title));
        BoxLayout layout = new BoxLayout(container, BoxLayout.Y_AXIS);
        container.setLayout(layout);

        JButton button;
        button = new JButton("0.0");
        button.setOpaque(false);
        button.setAlignmentX(Component.LEFT_ALIGNMENT);
        container.add(button);
        if (more) {
            button = new JButton(".25");
            button.setOpaque(false);
            button.setAlignmentX(0.25f);
            container.add(button);
            button = new JButton(".5");
            button.setOpaque(false);
            button.setAlignmentX(Component.CENTER_ALIGNMENT);
            container.add(button);
            button = new JButton(".75");
            button.setOpaque(false);
            button.setAlignmentX(0.75f);
            container.add(button);
        }
        button = new JButton("1.0");
        button.setOpaque(false);
        button.setAlignmentX(Component.RIGHT_ALIGNMENT);
        container.add(button);

        return container;
    }

    public static void main(String args[]) {
        JFrame frame = new JFrame("Alignment Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        Container panel1 = makeIt("Mixed", false);
        Container panel2 = makeIt("Mixed", true);

        Container contentPane = frame.getContentPane();
        contentPane.setLayout(new GridLayout(1, 2));
        contentPane.add(panel1);
        contentPane.add(panel2);

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