org.swiftexplorer.gui.AboutDlg.java Source code

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Here is the source code for org.swiftexplorer.gui.AboutDlg.java

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/*
 * Copyright 2014 Loic Merckel
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package org.swiftexplorer.gui;

import java.awt.Component;
import java.awt.Desktop;
import java.awt.FontMetrics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URISyntaxException;
import java.text.MessageFormat;
import java.util.List;

import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.swiftexplorer.config.Configuration;
import org.swiftexplorer.gui.localization.HasLocalizedStrings;

public class AboutDlg {
    private static final Logger logger = LoggerFactory.getLogger(AboutDlg.class);

    public static void show(Component parent, HasLocalizedStrings stringsBundle) {
        URI uri = null;
        try {
            uri = new URI("http://www.swiftexplorer.org");
        } catch (URISyntaxException e) {
            logger.error("URL seems to be ill-formed", e);
        }
        final String buttontext = "www.swiftexplorer.org";

        Box mainBox = Box.createVerticalBox();
        mainBox.setBorder(BorderFactory.createEmptyBorder(0, 4, 0, 0));

        StringBuilder sb = loadResource("/about.html");
        JLabel label = new JLabel(sb.toString());
        label.getAccessibleContext().setAccessibleDescription(getTitle(stringsBundle));
        mainBox.add(label);

        if (uri != null) {
            JButton button = new JButton();
            button.setText(buttontext);
            button.setToolTipText(uri.toString());
            button.addActionListener(new OpenUrlAction(uri));
            FontMetrics metrics = button.getFontMetrics(button.getFont());
            if (metrics != null)
                button.setSize(metrics.stringWidth(buttontext), button.getHeight());
            button.getAccessibleContext().setAccessibleDescription(buttontext);
            mainBox.add(button);
        }

        mainBox.add(Box.createVerticalStrut(10));

        JPanel panel = new JPanel();
        panel.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));
        panel.add(mainBox);

        JOptionPane.showMessageDialog(parent, panel, getTitle(stringsBundle), JOptionPane.INFORMATION_MESSAGE,
                getIcon());
    }

    private static Icon getIcon() {
        return new ImageIcon(AboutDlg.class.getResource("/icons/logo.png"));
    }

    private static String getTitle(HasLocalizedStrings stringsBundle) {
        StringBuilder title = new StringBuilder();
        title.append(" ");
        title.append(Configuration.INSTANCE.getAppName());
        title.append(" (");
        title.append(Configuration.INSTANCE.getAppVersion());
        title.append(")");
        return MessageFormat.format(
                (stringsBundle != null) ? (stringsBundle.getLocalizedString("About_dlg_title")) : ("About"),
                title.toString());
    }

    private static class OpenUrlAction implements ActionListener {

        private final URI uri;

        public OpenUrlAction(URI uri) {
            super();
            this.uri = uri;
        }

        @Override
        public void actionPerformed(ActionEvent e) {
            open(uri);
        }
    }

    private static void open(URI uri) {
        if (Desktop.isDesktopSupported()) {
            try {
                Desktop.getDesktop().browse(uri);
            } catch (IOException e) {

            }
        }
    }

    private static StringBuilder loadResource(String resource) {
        StringBuilder sb = new StringBuilder();
        InputStream input = AboutDlg.class.getResourceAsStream(resource);
        try {
            try {
                List<String> lines = IOUtils.readLines(input);
                for (String line : lines) {
                    sb.append(line);
                }
            } finally {
                input.close();
            }
        } catch (IOException ex) {
            logger.error("Error occurred while loading resources.", ex);
            throw new RuntimeException(ex);
        }
        return sb;
    }
}