seclinkedfilespanel.java

编辑视频文件

/*
 * File:     SecLinkedFilesPanel.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.linkedmedia;

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

import mpi.eudico.client.annotator.commands.Command;
import mpi.eudico.client.annotator.commands.ELANCommandFactory;

import mpi.eudico.client.annotator.util.FileExtension;
import mpi.eudico.client.annotator.util.FileUtility;

import mpi.eudico.client.util.CheckBoxTableCellRenderer;

import mpi.eudico.server.corpora.clom.Transcription;

import mpi.eudico.server.corpora.clomimpl.abstr.LinkedFileDescriptor;
import mpi.eudico.server.corpora.clomimpl.abstr.MediaDescriptor;
import mpi.eudico.server.corpora.clomimpl.abstr.TranscriptionImpl;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import java.io.File;

import java.util.ArrayList;
import java.util.List;
import java.util.Vector;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.SwingConstants;
import javax.swing.border.TitledBorder;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.TableModel;


/**
 * A panel for adding and removing of secondary linked files,
 * additional files not containing a primary source of annotation.
 *
 * @author Han Sloetjes
 */
public class SecLinkedFilesPanel extends JPanel implements ActionListener,
    ListSelectionListener, TableModelListener {
    private TranscriptionImpl transcription;

    /** empty value string */
    private final String NO_SOURCE = "-";

    // ui stuff
    private JScrollPane linkScrollPane;
    private JTable linkTable;
    private JPanel linkInfoPanel;
    private JLabel linkInfoLabel;
    private JButton addMB;
    private JButton removeMB;
    private JButton updateMB;
    private JButton associateJB;
    private JPanel linkButtonPanel;

    // data
    private Vector descCopy;

    /**
     * Creates a new SecLinkedFilesPanel instance
     *
     * @param trans DOCUMENT ME!
     */
    public SecLinkedFilesPanel(Transcription trans) {
        this.transcription = (TranscriptionImpl) trans;

        if (transcription != null) {
            Vector orgLFD = transcription.getLinkedFileDescriptors();
            descCopy = new Vector(orgLFD.size());

            LinkedFileDescriptor lfd;
            LinkedFileDescriptor cloneLFD;

            for (int i = 0; i < orgLFD.size(); i++) {
                lfd = (LinkedFileDescriptor) orgLFD.get(i);
                cloneLFD = (LinkedFileDescriptor) lfd.clone();

                if (cloneLFD != null) {
                    descCopy.add(cloneLFD);
                }
            }
        }

        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the
     * dialog.
     */
    private void initComponents() {
        GridBagConstraints gridBagConstraints;

        ImageIcon tickIcon = new ImageIcon(this.getClass().getResource("/mpi/eudico/client/annotator/resources/Tick16.gif"));
        ImageIcon untickIcon = new ImageIcon(this.getClass().getResource("/mpi/eudico/client/annotator/resources/Untick16.gif"));
        CheckBoxTableCellRenderer cbRenderer = new CheckBoxTableCellRenderer();
        cbRenderer.setIcon(untickIcon);
        cbRenderer.setSelectedIcon(tickIcon);
        cbRenderer.setHorizontalAlignment(SwingConstants.CENTER);

        linkScrollPane = new JScrollPane();
        linkTable = new JTable();
        linkInfoPanel = new JPanel();
        linkInfoLabel = new JLabel();
        linkButtonPanel = new JPanel();
        addMB = new JButton();
        removeMB = new JButton();
        updateMB = new JButton();
        associateJB = new JButton();

        setLayout(new GridBagLayout());

        Insets insets = new Insets(2, 6, 2, 6);

        linkScrollPane.setMinimumSize(new Dimension(100, 100));
        linkScrollPane.setPreferredSize(new Dimension(550, 100));

        LFDescriptorTableModel model = new LFDescriptorTableModel(descCopy);
        linkTable.setModel(model);

        linkTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        linkTable.getSelectionModel().addListSelectionListener(this);
        linkTable.getModel().addTableModelListener(this);

        for (int i = 0; i < linkTable.getColumnCount(); i++) {
            if (linkTable.getModel().getColumnClass(i) != String.class) {
                linkTable.getColumn(linkTable.getModel().getColumnName(i))
                         .setPreferredWidth(35);
            }

            if (linkTable.getModel().getColumnClass(i) == Boolean.class) {
                linkTable.getColumn(linkTable.getModel().getColumnName(i))
                         .setCellRenderer(cbRenderer);
            }
        }

        linkScrollPane.setViewportView(linkTable);
        linkScrollPane.getViewport().setBackground(linkTable.getBackground());

        gridBagConstraints = new GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.fill = GridBagConstraints.BOTH;
        gridBagConstraints.anchor = GridBagConstraints.NORTHWEST;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 1.0;
        gridBagConstraints.insets = insets;
        add(linkScrollPane, gridBagConstraints);

        linkInfoPanel.setLayout(new BorderLayout());
        linkInfoLabel.setFont(linkInfoLabel.getFont().deriveFont(Font.PLAIN, 10));
        fillInfoPanel(0);
        linkInfoPanel.add(linkInfoLabel, BorderLayout.WEST);

        gridBagConstraints = new GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.fill = GridBagConstraints.HORIZONTAL;
        gridBagConstraints.anchor = GridBagConstraints.NORTHWEST;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.insets = insets;
        add(linkInfoPanel, gridBagConstraints);

        linkButtonPanel.setLayout(new GridLayout(2, 2, 6, 2));

        addMB.addActionListener(this);
        linkButtonPanel.add(addMB);

        removeMB.setEnabled(false);
        removeMB.addActionListener(this);
        linkButtonPanel.add(removeMB);

        associateJB.setEnabled(false);
        associateJB.addActionListener(this);
        linkButtonPanel.add(associateJB);

        updateMB.setEnabled(false);
        updateMB.addActionListener(this);
        linkButtonPanel.add(updateMB);

        gridBagConstraints = new GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 2;
        gridBagConstraints.anchor = GridBagConstraints.NORTHEAST;
        gridBagConstraints.insets = insets;
        add(linkButtonPanel, gridBagConstraints);

        updateLocale();
    }

    /**
     * Applies localized strings to the ui elements.
     */
    private void updateLocale() {
        linkInfoPanel.setBorder(new TitledBorder(ElanLocale.getString(
                    "LinkedFilesDialog.Label.LinkInfo")));
        addMB.setText(ElanLocale.getString("LinkedFilesDialog.Button.Add"));
        removeMB.setText(ElanLocale.getString("LinkedFilesDialog.Button.Remove"));
        updateMB.setText(ElanLocale.getString("LinkedFilesDialog.Button.Update"));
        associateJB.setText(ElanLocale.getString(
                "LinkedFilesDialog.Button.AssociatedWith"));
    }

    /**
     * Checks whether changes have been made to the set of linked media files
     * and, if any, creates a command that replaces the  media descriptors.
     * The dialog is then closed.
     */
    void applyChanges() {
        if (hasChanged()) {
            Command c = ELANCommandFactory.createCommand(transcription,
                    ELANCommandFactory.CHANGE_LINKED_FILES);
            c.execute(transcription, new Object[] { descCopy, Boolean.FALSE });
        }
    }

    /**
     * Checks whether anything has changed in the linked files setup.
     *
     * @return whether anything has been changed in the linked files setup
     */
    boolean hasChanged() {
        boolean anyChange = false;

        Vector orgMD = transcription.getLinkedFileDescriptors();
        LinkedFileDescriptor olddesc;
        LinkedFileDescriptor newdesc;

        // first compare the size of the vectors
        if (orgMD.size() != descCopy.size()) {
            anyChange = true;
        }

        // if the size is the same check if all elements are the same
        if (!anyChange) {
outerloop: 
            for (int i = 0; i < orgMD.size(); i++) {
                olddesc = (LinkedFileDescriptor) orgMD.get(i);

                for (int j = 0; j < descCopy.size(); j++) {
                    newdesc = (LinkedFileDescriptor) descCopy.get(j);

                    if ((olddesc != null) && olddesc.equals(newdesc)) {
                        // check on change in master media and let the order be important
                        //if ((i == 0 && j > 0) || (i > 0 && j == 0)) { master change
                        if (i != j) {
                            anyChange = true;

                            break outerloop;
                        }

                        continue outerloop;
                    }
                }

                // if we come here something has changed
                anyChange = true;

                break outerloop;
            }
        }

        return anyChange;
    }

    /**
     * Prompts the user to select a file and creates a descriptor for the file.
     */
    private void addDescriptor() {
        String file = chooseFile();

        if (file == null) {
            return;
        }

        LinkedFileDescriptor lfd = LinkedFileDescriptorUtil.createLFDescriptor(file);

        for (int i = 0; i < descCopy.size(); i++) {
            LinkedFileDescriptor otherLFD = (LinkedFileDescriptor) descCopy.get(i);

            if (otherLFD.linkURL.equals(lfd.linkURL)) {
                showWarningDialog(ElanLocale.getString(
                        "LinkedFilesDialog.Message.AlreadyLinked"));

                return;
            }
        }

        descCopy.add(lfd);

        // the table model has a reference to the same vector of link descriptors
        ((LFDescriptorTableModel) linkTable.getModel()).rowDataChanged();

        linkTable.getSelectionModel().setLeadSelectionIndex(descCopy.size() -