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GpxExportAction.java

// License: GPL. Copyright 2007 by Immanuel Scholz and others
package org.openstreetmap.josm.actions;

import static org.openstreetmap.josm.tools.I18n.tr;

import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Calendar;

import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.ListSelectionModel;

import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.data.gpx.GpxData;
import org.openstreetmap.josm.gui.layer.GpxLayer;
import org.openstreetmap.josm.gui.layer.Layer;
import org.openstreetmap.josm.gui.layer.OsmDataLayer;
import org.openstreetmap.josm.io.GpxWriter;
import org.openstreetmap.josm.tools.GBC;

/**
 * Exports data to gpx.
 */
00040 public class GpxExportAction extends DiskAccessAction {

      private final static String warningGpl = "<html><font color='red' size='-2'>"+tr("Note: GPL is not compatible with the OSM license. Do not upload GPL licensed tracks.")+"</html>";

      private final Layer layer;

      public GpxExportAction(Layer layer) {
            super(tr("Export to GPX ..."), "exportgpx", tr("Export the data to GPX file."), KeyEvent.VK_E, InputEvent.CTRL_DOWN_MASK);
            this.layer = layer;
      }

      public void actionPerformed(ActionEvent e) {
            if (layer == null && Main.map == null) {
                  JOptionPane.showMessageDialog(Main.parent, tr("Nothing to export. Get some data first."));
                  return;
            }

            JFileChooser fc = createAndOpenFileChooser(false, false);
            if (fc == null)
                  return;
            File file = fc.getSelectedFile();
            if (file == null)
                  return;

            exportGpx(file, this.layer == null ? Main.main.editLayer() : this.layer);
      }

      public static void exportGpx(File file, Layer layer) {
            String fn = file.getPath();
            if (fn.indexOf('.') == -1) {
                  fn += ".gpx";
                  file = new File(fn);
            }
            
            // open the dialog asking for options
            JPanel p = new JPanel(new GridBagLayout());

            p.add(new JLabel(tr("gps track description")), GBC.eol());
            JTextArea desc = new JTextArea(3,40);
            desc.setWrapStyleWord(true);
            desc.setLineWrap(true);
            p.add(new JScrollPane(desc), GBC.eop().fill(GBC.BOTH));
            
            JCheckBox author = new JCheckBox(tr("Add author information"), Main.pref.getBoolean("lastAddAuthor", true));
            author.setSelected(true);
            p.add(author, GBC.eol());
            JLabel nameLabel = new JLabel(tr("Real name"));
            p.add(nameLabel, GBC.std().insets(10,0,5,0));
            JTextField authorName = new JTextField(Main.pref.get("lastAuthorName"));
            p.add(authorName, GBC.eol().fill(GBC.HORIZONTAL));
            JLabel emailLabel = new JLabel(tr("Email"));
            p.add(emailLabel, GBC.std().insets(10,0,5,0));
            JTextField email = new JTextField(Main.pref.get("osm-server.username"));
            p.add(email, GBC.eol().fill(GBC.HORIZONTAL));
            JLabel copyrightLabel = new JLabel(tr("Copyright (URL)"));
            p.add(copyrightLabel, GBC.std().insets(10,0,5,0));
            JTextField copyright = new JTextField();
            p.add(copyright, GBC.std().fill(GBC.HORIZONTAL));
            JButton predefined = new JButton(tr("Predefined"));
            p.add(predefined, GBC.eol().insets(5,0,0,0));
            JLabel copyrightYearLabel = new JLabel(tr("Copyright year"));
            p.add(copyrightYearLabel, GBC.std().insets(10,0,5,5));
            JTextField copyrightYear = new JTextField("");
            p.add(copyrightYear, GBC.eol().fill(GBC.HORIZONTAL));
            JLabel warning = new JLabel("<html><font size='-2'>&nbsp;</html");
            p.add(warning, GBC.eol().fill(GBC.HORIZONTAL).insets(15,0,0,0));
            addDependencies(author, authorName, email, copyright, predefined, copyrightYear, nameLabel, emailLabel, copyrightLabel, copyrightYearLabel, warning);
            
            p.add(new JLabel(tr("Keywords")), GBC.eol());
            JTextField keywords = new JTextField();
            p.add(keywords, GBC.eop().fill(GBC.HORIZONTAL));

            int answer = JOptionPane.showConfirmDialog(Main.parent, p, tr("Export options"), JOptionPane.OK_CANCEL_OPTION);
            if (answer != JOptionPane.OK_OPTION)
                  return;
            
            Main.pref.put("lastAddAuthor", author.isSelected());
            if (authorName.getText().length() != 0)
                  Main.pref.put("lastAuthorName", authorName.getText());
            if (copyright.getText().length() != 0)
                  Main.pref.put("lastCopyright", copyright.getText());

            GpxData gpxData;
            if (layer instanceof OsmDataLayer)
                  gpxData = ((OsmDataLayer)layer).toGpxData();
            else if (layer instanceof GpxLayer)
                  gpxData = ((GpxLayer)layer).data;
            else
                  gpxData = OsmDataLayer.toGpxData(Main.ds);
            // TODO: add copyright, etc.
            try {
                  new GpxWriter(new FileOutputStream(file)).write(gpxData);
            } catch (IOException x) {
                  x.printStackTrace();
                  JOptionPane.showMessageDialog(Main.parent, tr("Error while exporting {0}", fn)+":\n"+x.getMessage(), tr("Error"), JOptionPane.ERROR_MESSAGE);
            }           
      }
      
      /**
       * Add all those listeners to handle the enable state of the fields.
       * @param copyrightYearLabel 
       * @param copyrightLabel 
       * @param emailLabel 
       * @param nameLabel 
       * @param warning 
       */
00146       private static void addDependencies(
                  final JCheckBox author, 
                  final JTextField authorName,
                  final JTextField email,
                  final JTextField copyright,
                  final JButton predefined,
                  final JTextField copyrightYear,
                  final JLabel nameLabel,
                  final JLabel emailLabel,
                  final JLabel copyrightLabel,
                  final JLabel copyrightYearLabel,
                  final JLabel warning) {
            
            ActionListener authorActionListener = new ActionListener(){
                  public void actionPerformed(ActionEvent e) {
                        boolean b = author.isSelected();
                        authorName.setEnabled(b);
                        email.setEnabled(b);
                        nameLabel.setEnabled(b);
                        emailLabel.setEnabled(b);
                        authorName.setText(b ? Main.pref.get("lastAuthorName") : "");
                        email.setText(b ? Main.pref.get("osm-server.username") : "");

                        boolean authorSet = authorName.getText().length() != 0;
                        enableCopyright(copyright, predefined, copyrightYear, copyrightLabel, copyrightYearLabel, warning, b && authorSet);
                  }
            };
            author.addActionListener(authorActionListener);

            KeyAdapter authorNameListener = new KeyAdapter(){
                              @Override public void keyReleased(KeyEvent e) {
                                    boolean b = authorName.getText().length()!=0 && author.isSelected();
                                    enableCopyright(copyright, predefined, copyrightYear, copyrightLabel, copyrightYearLabel, warning, b);
                              }
                        };
            authorName.addKeyListener(authorNameListener);
            
            predefined.addActionListener(new ActionListener(){
                  public void actionPerformed(ActionEvent e) {
                        JList l = new JList(new String[]{"Creative Commons By-SA", "public domain", "GNU Lesser Public License (LGPL)", "BSD License (MIT/X11)"});
                        l.setVisibleRowCount(4);
                        l.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
                        int answer = JOptionPane.showConfirmDialog(Main.parent, new JScrollPane(l),tr("Choose a predefined license"), JOptionPane.OK_CANCEL_OPTION);
                        if (answer != JOptionPane.OK_OPTION || l.getSelectedIndex() == -1)
                              return;
                        final String[] urls = {
                                    "http://creativecommons.org/licenses/by-sa/2.5",
                                    "public domain",
                                    "http://www.gnu.org/copyleft/lesser.html",
                                    "http://www.opensource.org/licenses/bsd-license.php"};
                        String license = "";
                        for (int i : l.getSelectedIndices()) {
                              if (i == 1) {
                                    license = "public domain";
                                    break;
                              }
                              license += license.length()==0 ? urls[i] : ", "+urls[i];
                        }
                        copyright.setText(license);
                        copyright.setCaretPosition(0);
                  }
            });

            authorActionListener.actionPerformed(null);
            authorNameListener.keyReleased(null);
      }

      private static void enableCopyright(final JTextField copyright, final JButton predefined, final JTextField copyrightYear, final JLabel copyrightLabel, final JLabel copyrightYearLabel, final JLabel warning, boolean enable) {
            copyright.setEnabled(enable);
            predefined.setEnabled(enable);
            copyrightYear.setEnabled(enable);
            copyrightLabel.setEnabled(enable);
            copyrightYearLabel.setEnabled(enable);
            warning.setText(enable ? warningGpl : "<html><font size='-2'>&nbsp;</html");

            if (enable && copyrightYear.getText().length()==0) {
                  copyrightYear.setText(enable ? Integer.toString(Calendar.getInstance().get(Calendar.YEAR)) : "");
            } else if (!enable)
                  copyrightYear.setText("");

            if (enable && copyright.getText().length()==0) {
                  copyright.setText(enable ? Main.pref.get("lastCopyright", "http://creativecommons.org/licenses/by-sa/2.5") : "");
                  copyright.setCaretPosition(0);
            } else if (!enable)
                  copyright.setText("");
      }
}

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