multifilechooser.java

编辑视频文件

/*
 * File:     MultiFileChooser.java
 * Project:  MPI Linguistic Application
 * Date:     02 May 2007
 *
 * Copyright (C) 2001-2007  Max Planck Institute for Psycholinguistics
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package mpi.eudico.client.annotator.gui;

import mpi.eudico.client.annotator.Constants;
import mpi.eudico.client.annotator.ElanLocale;
import mpi.eudico.client.annotator.Preferences;

import mpi.eudico.client.annotator.util.*;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.HeadlessException;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import java.io.File;

import javax.swing.ButtonGroup;
import javax.swing.DefaultListModel;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.WindowConstants;
import javax.swing.border.CompoundBorder;
import javax.swing.border.EmptyBorder;
import javax.swing.border.LineBorder;
import javax.swing.border.TitledBorder;
import javax.swing.filechooser.FileFilter;


/**
 * A custom Multiple File Chooser dialog that does not use the
 * <code>setAccessory</code>  mechanism of JFileChooser. This mechanism is not
 * L&F independent, forcing the Metal  L&F on all platforms. This chooser adds
 * a JFileChooser and other ui elements to a JComponent in what should  be a
 * L&F independent way.
 *
 * @author Han Sloetjes
 * @version 1.0 july 2005
 */
public class MultiFileChooser extends JComponent implements ActionListener {
    /** generic multiple file chooser */
    public static final int GENERIC = 0;

    /**
     * a multiple file chooser that let the user switch between media file
     * filtering   and template file filtering
     */
    public static final int MEDIA_TEMPLATE = 1;
    private JFileChooser chooser;
    private JList fileList;
    private DefaultListModel model;
    private JPanel selPanel;
    private JRadioButton mediaRB;
    private JRadioButton templateRB;
    private JButton remoteButton;
    private JButton okButton;
    private JButton cancelButton;
    private JButton copyButton;
    private JButton removeButton;
    private JButton upButton;
    private JButton downButton;
    private String dialogTitle;
    private JDialog dialog;
    private FileFilter mediaFilter;
    private FileFilter templateFilter;
    private FileFilter qtFilter;
    private FileFilter mp4Filter;
    private int returnValue = JFileChooser.ERROR_OPTION;
    private int mode = MEDIA_TEMPLATE;

    /**
     * Creates a new MultiFileChooser instance with the  default selection
     * mode, <code>GENERIC</code>
     */
    public MultiFileChooser() {
        this(GENERIC);
    }

    /**
     * Creates a new MultiFileChooser instance
     *
     * @param mode the mode, either <code>GENERIC</code> or
     *        <code>MEDIA_TEMPLATE</code>
     */
    public MultiFileChooser(int mode) {
        if ((mode >= GENERIC) && (mode <= MEDIA_TEMPLATE)) {
            this.mode = mode;
        }

        initComponents();
    }

    private void initComponents() {
        mediaRB = new JRadioButton();
        templateRB = new JRadioButton();
        remoteButton = new JButton();
        okButton = new JButton();
        cancelButton = new JButton();
        removeButton = new JButton();
        upButton = new JButton();
        downButton = new JButton();
        copyButton = new JButton();

        ImageIcon REMOVE_ICON = new ImageIcon(this.getClass().getResource("/mpi/eudico/client/annotator/resources/Remove.gif"));
        ImageIcon UP_ICON = new ImageIcon(this.getClass().getResource("/mpi/eudico/client/annotator/resources/Up.gif"));
        ImageIcon DOWN_ICON = new ImageIcon(this.getClass().getResource("/mpi/eudico/client/annotator/resources/Down.gif"));
        removeButton.setIcon(REMOVE_ICON);
        upButton.setIcon(UP_ICON);
        downButton.setIcon(DOWN_ICON);

        this.setLayout(new GridBagLayout());

        GridBagConstraints gbc = new GridBagConstraints();
        Insets insets = new Insets(2, 2, 2, 2);

        chooser = new JFileChooser();
        chooser.setMultiSelectionEnabled(true);
        chooser.setControlButtonsAreShown(false);
        chooser.setPreferredSize(new Dimension((int) chooser.getPreferredSize()
                                                            .getWidth() - 80,
                (int) chooser.getPreferredSize().getHeight()));

        gbc.gridx = 0;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.NORTHWEST;
        gbc.fill = GridBagConstraints.BOTH;
        gbc.weightx = 1.0;
        gbc.weighty = 1.0;
        gbc.insets = insets;
        this.add(chooser, gbc);

        JPanel midPanel = new JPanel(new GridBagLayout());
        copyButton.setText(" >> ");
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.CENTER;
        gbc.insets = new Insets(4, 6, 4, 6);
        midPanel.add(copyButton, gbc);

        selPanel = new JPanel(new GridBagLayout());
        selPanel.setBorder(new TitledBorder(ElanLocale.getString(
                    "Frame.ElanFrame.NewDialog.RadioFileType")));

        ButtonGroup bg = new ButtonGroup();
        mediaRB.setSelected(true);
        mediaRB.setText(ElanLocale.getString(
                "Frame.ElanFrame.NewDialog.RadioButtonMedia"));
        templateRB.setText(ElanLocale.getString(
                "Frame.ElanFrame.NewDialog.RadioButtonTemplate"));
        bg.add(mediaRB);
        bg.add(templateRB);
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.NORTHWEST;
        gbc.insets = insets;
        selPanel.add(mediaRB, gbc);

        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 1;
        gbc.anchor = GridBagConstraints.NORTHWEST;
        gbc.insets = insets;
        selPanel.add(templateRB, gbc);

        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 1;
        gbc.anchor = GridBagConstraints.SOUTH;
        gbc.insets = new Insets(4, 6, 4, 6);
        midPanel.add(selPanel, gbc);

        gbc = new GridBagConstraints();
        gbc.gridx = 1;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.NORTH;

        //gbc.insets = insets;
        gbc.fill = GridBagConstraints.VERTICAL;
        gbc.weighty = 1.0;
        this.add(midPanel, gbc);

        JPanel rightPanel = new JPanel(new GridBagLayout());
        JPanel infoPanel = new JPanel(new GridBagLayout());
        Dimension dim = new Dimension(70, 40);
        infoPanel.setPreferredSize(dim);
        infoPanel.setMinimumSize(dim);
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.CENTER;
        gbc.insets = insets;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.weighty = 1.0;
        infoPanel.add(new JLabel(ElanLocale.getString(
                    "Frame.ElanFrame.NewDialog.Selected")));

        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 0;
        gbc.insets = insets;
        gbc.anchor = GridBagConstraints.NORTH;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.weightx = 1.0;
        rightPanel.add(infoPanel, gbc);

        model = new DefaultListModel();
        fileList = new JList(model);
        fileList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

        JScrollPane jsp = new JScrollPane(fileList);
        jsp.setPreferredSize(new Dimension(jsp.getPreferredSize().getSize().width -
                30, jsp.getPreferredSize().getSize().height));

        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 1;
        gbc.insets = insets;
        gbc.anchor = GridBagConstraints.NORTH;
        gbc.fill = GridBagConstraints.BOTH;
        gbc.weightx = 1.0;
        gbc.weighty = 1.0;
        rightPanel.add(jsp, gbc);

        JPanel controlPanel = new JPanel(new GridLayout(1, 3, 6, 6));
        controlPanel.add(removeButton);
        controlPanel.add(upButton);
        controlPanel.add(downButton);

        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 2;
        gbc.insets = insets;
        gbc.anchor = GridBagConstraints.NORTH;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.weightx = 1.0;
        rightPanel.add(controlPanel, gbc);

        remoteButton.setText(ElanLocale.getString(
                "Frame.ElanFrame.NewDialog.RemoteMedia"));
        remoteButton.addActionListener(this);
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 3;
        gbc.anchor = GridBagConstraints.NORTH;
        gbc.insets = new Insets(7, 2, 3, 2);
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.weightx = 1.0;
        rightPanel.add(remoteButton, gbc);

        gbc = new GridBagConstraints();
        gbc.gridx = 2;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.NORTH;
        gbc.insets = insets;
        gbc.fill = GridBagConstraints.BOTH;
        gbc.weightx = 1.0;
        gbc.weighty = 1.0;
        this.add(rightPanel, gbc);

        JPanel buttonPanel = new JPanel(new GridLayout(1, 2, 6, 6));
        okButton.setText(ElanLocale.getString("Button.OK"));
        cancelButton.setText(ElanLocale.getString("Button.Cancel"));
        buttonPanel.add(okButton);
        buttonPanel.add(cancelButton);

        JPanel butBorderPanel = new JPanel(new GridBagLayout());
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.WEST;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.weightx = 1.0;
        butBorderPanel.add(new JPanel(), gbc);
        gbc = new GridBagConstraints();
        gbc.gridx = 1;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.EAST;
        gbc.insets = insets;
        butBorderPanel.add(buttonPanel, gbc);

        butBorderPanel.setBorder(new CompoundBorder(
                new LineBorder(Color.GRAY, 1), new EmptyBorder(6, 6, 6, 6)));
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 1;
        gbc.gridwidth = 3;
        gbc.anchor = GridBagConstraints.CENTER;
        gbc.insets = insets;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.weightx = 1.0;
        this.add(butBorderPanel, gbc);

        chooser.addActionListener(this);
        copyButton.addActionListener(this);
        removeButton.addActionListener(this);
        upButton.addActionListener(this);
        downButton.addActionListener(this);
        okButton.addActionListener(this);
        cancelButton.addActionListener(this);
        mediaRB.addActionListener(this);
        templateRB.addActionListener(this);

        if (mode == GENERIC) {
            selPanel.setVisible(false);
            remoteButton.setVisible(false);
        } else {
            //start with media file filter
            mediaFilter = ElanFileFilter.createFileFilter(ElanFileFilter.MEDIA_TYPE);
            templateFilter = ElanFileFilter.createFileFilter(ElanFileFilter.TEMPLATE_TYPE);
            qtFilter = ElanFileFilter.createFileFilter(ElanFileFilter.QT_TYPE);
            mp4Filter = ElanFileFilter.createFileFilter(ElanFileFilter.MP4_TYPE);
            chooser.addChoosableFileFilter(mediaFilter);
            chooser.addChoosableFileFilter(mp4Filter);
            chooser.addChoosableFileFilter(qtFilter);
            chooser.setFileFilter(mediaFilter);

            String mediaDir = (String) Preferences.get("MediaDir", null);
            chooser.setCurrentDirectory(new File((mediaDir == null)
                    ? Constants.USERHOME : mediaDir));
        }
    }

    /**
     * Returns an array of file objects that the user has selected.
     *
     * @return an array of file objects
     */
    public Object[] getFiles() {
        Object[] obj = new Object[model.getSize()];

        for (int i = 0; i < obj.length; i++) {
            obj[i] = model.getElementAt(i);
        }

        return obj;
    }

    /**
     * Sets a list of files and/or directories in the multiple file box.
     *
     * @param files the files that should be added to the selected files list
     */
    public void setFiles(File[] files) {
        model.clear();

        for (int i = 0; i < files.length; i++) {
            model.insertElementAt(files[i], i);
        }

        fileList.setSelectedIndex(0);
        fileList.ensureIndexIsVisible(0);
    }

    /**
     * Clears the list of files.
     */
    public void clearList() {
        model.clear();
    }

    /**
     * Shows an input pane where the user can enter the url of a (rtsp) streaming file.
     * The file is added to the list.
     */
    private void addRemoteFile() {
        Object rf = JOptionPane.showInputDialog(this,
                ElanLocale.getString("Frame.ElanFrame.NewDialog.RemoteLabel"),
                ElanLocale.getString("Frame.ElanFrame.NewDialog.RemoteMedia"),
                JOptionPane.PLAIN_MESSAGE, null, null, "rtsp://");

        if (rf == null) {
            return;
        }

        String url = (String) rf;
        url.replace('\\', '/');

        // try some simple repairs
        boolean valid = true;

        if (!url.startsWith("rtsp")) {
            int ds = url.indexOf("//");

            if (ds > -1) {
                url = "rtsp:" + url.substring(ds);
            } else {
                url = "rtsp://" + url;
            }
        }

        if (url.indexOf("://") != 4) {
            valid = false; // do not even try to repair
        }

        int dot = url.lastIndexOf('.');
        int slash = url.lastIndexOf('/');

        if ((dot < 0) || (dot < slash) || ((dot > slash) && (slash <= 7))) {
            valid = false;
        }

        // no use trying to check the string as an URL (doesn't know the rtsp protocol)
        // or URI (accepts almost any string)
        if (!valid) {
            JOptionPane.showMessageDialog(this,
                ElanLocale.getString("Frame.ElanFrame.NewDialog.RemoteMessage") +
                url, ElanLocale.getString("Message.Error"),
                JOptionPane.ERROR_MESSAGE);
            addRemoteFile();
        } else {
            int curIndex = fileList.getSelectedIndex();
            model.add(curIndex + 1, url);
            fileList.setSelectedIndex(curIndex + 1);
        }
    }

    /**
     * Copies the selected files from the File chooser to the user list.
     */
    private void copyFile() {
        String strCurDir = null;

        if (chooser.isMultiSelectionEnabled()) {
            File[] files = chooser.getSelectedFiles();

            int curIndex;

            for (int i = 0; i < files.length; i++) {
                if (!model.contains(files[i])) {