Java tutorial
/** * Tangara is an educational platform to get started with programming. * Copyright (C) 2009-2012 Colombbus (http://www.colombbus.org) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.colombbus.tangara.update; import java.awt.*; import java.awt.event.*; import java.text.MessageFormat; import java.util.ResourceBundle; import javax.swing.*; import org.apache.commons.lang.Validate; @SuppressWarnings("serial") class SoftwareUpdateDialog extends JDialog implements ActionListener { private final ResourceBundle bundle = ResourceBundle .getBundle(SoftwareUpdateDialog.class.getPackage().getName() + ".messages"); //$NON-NLS-1$ private JButton closeButton; private SoftwareUpdateInfo info; private Font font = new Font("sans-serif", Font.PLAIN, 12);; //$NON-NLS-1$ public SoftwareUpdateDialog(SoftwareUpdateInfo info) { Validate.notNull(info == null, "info argument is null"); //$NON-NLS-1$ this.info = info; init(); } private void init() { initDialog(); addIntroductionPane(); addButtonPane(); addCenterPane(); pack(); } private void addCenterPane() { JPanel centerPane = new JPanel(); BoxLayout layout = new BoxLayout(centerPane, BoxLayout.Y_AXIS); centerPane.setLayout(layout); JTextArea descPane = new JTextArea(info.getDescription()); descPane.setFont(font); descPane.setEditable(false); centerPane.add(descPane); JPanel linkPanel = new JPanel(); linkPanel.setLayout(new FlowLayout(FlowLayout.LEFT)); String linkTitle = bundle.getString("SoftwareUpdateDialog.linkTitle"); //$NON-NLS-1$ JLabel linkTitleLabel = new JLabel(linkTitle); linkTitleLabel.setFont(font); linkPanel.add(linkTitleLabel); HyperLinkLabel linkLabel = new HyperLinkLabel(info.getLink(), info.getLink()); linkLabel.setFont(font); linkPanel.add(linkLabel); linkPanel.setBackground(Color.white); linkPanel.setOpaque(true); centerPane.add(linkPanel); add(centerPane, BorderLayout.CENTER); } private void initDialog() { getRootPane().setBorder(BorderFactory.createEmptyBorder(3, 3, 3, 3)); setLayout(new BorderLayout(5, 5)); setSize(200, 500); String title = bundle.getString("SoftwareUpdateDialog.title"); //$NON-NLS-1$ setTitle(title); setDefaultCloseOperation(DISPOSE_ON_CLOSE); } private void addButtonPane() { Box box = Box.createHorizontalBox(); box.setBorder(BorderFactory.createEmptyBorder(3, 3, 3, 3)); box.add(Box.createGlue()); String closeLabel = bundle.getString("SoftwareUpdateDialog.close"); //$NON-NLS-1$ closeButton = new JButton(closeLabel); closeButton.addActionListener(this); box.add(closeButton); add(box, BorderLayout.SOUTH); } private void addIntroductionPane() { String introFormat = bundle.getString("SoftwareUpdateDialog.introduction"); //$NON-NLS-1$ String introduction = MessageFormat.format(introFormat, info.getVersion()); String labelText = String.format("<html><b>%s</b></html>", introduction); //$NON-NLS-1$ JLabel introLabel = new JLabel(labelText); introLabel.setBorder(BorderFactory.createEmptyBorder(3, 3, 3, 3)); introLabel.setFont(font); add(introLabel, BorderLayout.NORTH); } @Override public void actionPerformed(ActionEvent e) { if (e.getSource() == closeButton) { setVisible(false); } } }