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Java Swing, 2nd Edition
book

Java Swing, 2nd Edition

by Dave Wood, Robert Eckstein, Marc Loy, James Elliott, Brian Cole
November 2002
Intermediate to advanced content levelIntermediate to advanced
1278 pages
38h 26m
English
O'Reilly Media, Inc.
Content preview from Java Swing, 2nd Edition

A Simple Form

One of the most common user-interface constructs is the basic form. Typically, forms are made up of labels and fields, with the label describing the text to be entered in the field. Here’s a primitive TextForm class that shows the use of mnemonics, tooltips, and basic accessibility support. Note that we call setLabelFor( ) to associate each label with a text field. This association allows the mnemonics to set the focus and, together with setToolTipText( ), supports accessibility (see Chapter 25).

// TextForm.j ava // import javax.swing.*; import java.awt.event.*; import java.awt.*; // A simple label/field form panel public class TextForm extends JPanel { private JTextField[] fields; // Create a form with the specified labels, tooltips, and sizes. public TextForm(String[] labels, char[] mnemonics, int[] widths, String[] tips) { super(new BorderLayout( )); JPanel labelPanel = new JPanel(new GridLayout(labels.length, 1)); JPanel fieldPanel = new JPanel(new GridLayout(labels.length, 1)); add(labelPanel, BorderLayout.WEST); add(fieldPanel, BorderLayout.CENTER); fields = new JTextField[labels.length]; for (int i=0; i < labels.length; i+=1) { fields[i] = new JTextField( ); if (i < tips.length) fields[i].setToolTipText(tips[i]); if (i < widths.length) fields[i].setColumns(widths[i]); JLabel lab = new JLabel(labels[i], JLabel.RIGHT); lab.setLabelFor(fields[i]); if (i < mnemonics.length) lab.setDisplayedMnemonic(mnemonics[i]); labelPanel.add(lab); JPanel p = new JPanel(new FlowLayout(FlowLayout.LEFT)); ...
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Publisher Resources

ISBN: 0596004087Errata PageSupplemental Content