source: java/installer2/src/net/oni2/aeinstaller/gui/downloadwindow/Downloader.java@ 1134

package net.oni2.aeinstaller.gui.downloadwindow;

import java.awt.Component;
import java.util.ResourceBundle;
import java.util.TreeSet;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JProgressBar;

import net.oni2.aeinstaller.backend.SizeFormatter;
import net.oni2.aeinstaller.backend.packages.Package;
import net.oni2.aeinstaller.backend.packages.download.ModDownloader;
import net.oni2.aeinstaller.backend.packages.download.ModDownloaderListener;
import net.oni2.aeinstaller.backend.packages.download.ModDownloader.State;
import net.oni2.resourcebundle.UTF8ResourceBundleLoader;

import org.javabuilders.BuildResult;
import org.javabuilders.swing.SwingJavaBuilder;

/**
 * @author Christian Illy
 */
public class Downloader extends JDialog implements ModDownloaderListener {
        private static final long serialVersionUID = 9097967828001263776L;

        private ResourceBundle bundle = UTF8ResourceBundleLoader
                        .getBundle("net.oni2.aeinstaller.localization."
                                        + getClass().getSimpleName());
        @SuppressWarnings("unused")
        private BuildResult result = SwingJavaBuilder.build(this, bundle);

        private JLabel lblNameVal;
        private JLabel lblIsDep;
        private JLabel lblElapsedVal;
        private JLabel lblRemainingVal;
        private JLabel lblDownloadedVal;
        private JLabel lblTotalVal;
        private JLabel lblRateVal;
        private JProgressBar progress;

        private JButton btnAbort;

        private ModDownloader downloader;
        private TreeSet<Package> dependencies = new TreeSet<Package>();

        /**
         * @param mods
         *            Mods to download
         * @param dependencies
         *            List of mods that only are auto-resolved dependencies
         * @param isCoreDownload
         *            Downloading core packages - can not be aborted
         * @param parent
         *            Reference to parent window for centering
         */
        public Downloader(TreeSet<Package> mods, TreeSet<Package> dependencies,
                        boolean isCoreDownload, Component parent) {
                super();

                if (isCoreDownload) {
                        setTitle(bundle.getString("frame.titleCore"));
                        btnAbort.setEnabled(false);
                }

                setResizable(false);
                setSize(600, (int) getSize().getHeight());
                setLocationRelativeTo(parent);

                if (dependencies != null)
                        this.dependencies = dependencies;

                downloader = new ModDownloader(mods, this);
                progress.setMaximum(downloader.getTotalSize());
                progress.setStringPainted(true);
                progress.setToolTipText(String.format("%d / %d files downloaded", 0,
                                mods.size()));

                lblDownloadedVal.setText(SizeFormatter.format(0, 3));
                lblTotalVal.setText(SizeFormatter.format(downloader.getTotalSize(), 3));
        }

        private void close() {
                if (!downloader.isFinished())
                        downloader.abort();
                setVisible(false);
        }

        @SuppressWarnings("unused")
        private boolean confirm() {
                if (btnAbort.isEnabled()) {
                        int res = JOptionPane.showConfirmDialog(this,
                                        bundle.getString("abort.text"),
                                        bundle.getString("abort.title"), JOptionPane.YES_NO_OPTION,
                                        JOptionPane.WARNING_MESSAGE);
                        return res == JOptionPane.YES_OPTION;
                } else
                        return false;
        }

        private String formatTime(int sec) {
                int min = sec / 60;
                sec = sec % 60;
                return String.format("%02d:%02d", min, sec);
        }

        @Override
        public void updateStatus(ModDownloader source, Package currentDownload,
                        State state, int filesDown, int filesTotal, int bytesDown,
                        int bytesTotal, int duration, int remaining, int speed) {
                if (state == ModDownloader.State.FINISHED) {
                        close();
                } else {
                        if (state == State.LAST_FILE_DOWNLOADED)
                                btnAbort.setEnabled(false);

                        progress.setValue(bytesDown);
                        progress.setToolTipText(String.format("%d / %d files downloaded",
                                        filesDown, filesTotal));

                        if (currentDownload != null) {
                                lblNameVal.setText(currentDownload.getName());
                                lblIsDep.setVisible(dependencies.contains(currentDownload));
                        } else {
                                lblNameVal.setText(bundle.getString("unpacking"));
                                lblIsDep.setVisible(false);
                        }

                        lblElapsedVal.setText(formatTime(duration));
                        lblRemainingVal.setText(formatTime(remaining));

                        lblDownloadedVal.setText(SizeFormatter.format(bytesDown, 3));

                        lblRateVal.setText(SizeFormatter.format(speed, 3) + "/s");
                }
        }

        /**
         * @return were all downloads finished?
         */
        public boolean isFinished() {
                return downloader.isFinished();
        }

}