001// License: GPL. For details, see LICENSE file.
002package org.openstreetmap.josm.gui.layer.geoimage;
003
004import static org.openstreetmap.josm.tools.I18n.tr;
005import static org.openstreetmap.josm.tools.I18n.trn;
006
007import java.awt.BorderLayout;
008import java.awt.Component;
009import java.awt.Cursor;
010import java.awt.Dimension;
011import java.awt.FlowLayout;
012import java.awt.GraphicsEnvironment;
013import java.awt.GridBagConstraints;
014import java.awt.GridBagLayout;
015import java.awt.event.ActionEvent;
016import java.awt.event.ActionListener;
017import java.awt.event.FocusEvent;
018import java.awt.event.FocusListener;
019import java.awt.event.ItemEvent;
020import java.awt.event.ItemListener;
021import java.awt.event.WindowAdapter;
022import java.awt.event.WindowEvent;
023import java.io.File;
024import java.io.IOException;
025import java.io.InputStream;
026import java.text.DateFormat;
027import java.text.ParseException;
028import java.text.SimpleDateFormat;
029import java.util.ArrayList;
030import java.util.Arrays;
031import java.util.Collections;
032import java.util.Comparator;
033import java.util.Date;
034import java.util.Dictionary;
035import java.util.Hashtable;
036import java.util.List;
037import java.util.Objects;
038import java.util.TimeZone;
039import java.util.concurrent.TimeUnit;
040
041import javax.swing.AbstractAction;
042import javax.swing.AbstractListModel;
043import javax.swing.BorderFactory;
044import javax.swing.JButton;
045import javax.swing.JCheckBox;
046import javax.swing.JComponent;
047import javax.swing.JFileChooser;
048import javax.swing.JLabel;
049import javax.swing.JList;
050import javax.swing.JOptionPane;
051import javax.swing.JPanel;
052import javax.swing.JScrollPane;
053import javax.swing.JSeparator;
054import javax.swing.JSlider;
055import javax.swing.JSpinner;
056import javax.swing.ListSelectionModel;
057import javax.swing.MutableComboBoxModel;
058import javax.swing.SpinnerNumberModel;
059import javax.swing.SwingConstants;
060import javax.swing.border.Border;
061import javax.swing.event.ChangeEvent;
062import javax.swing.event.ChangeListener;
063import javax.swing.event.DocumentEvent;
064import javax.swing.event.DocumentListener;
065
066import org.openstreetmap.josm.actions.DiskAccessAction;
067import org.openstreetmap.josm.actions.ExtensionFileFilter;
068import org.openstreetmap.josm.data.gpx.GpxData;
069import org.openstreetmap.josm.data.gpx.GpxImageCorrelation;
070import org.openstreetmap.josm.data.gpx.GpxTimeOffset;
071import org.openstreetmap.josm.data.gpx.GpxTimezone;
072import org.openstreetmap.josm.data.gpx.GpxTrack;
073import org.openstreetmap.josm.data.gpx.GpxTrackSegment;
074import org.openstreetmap.josm.data.gpx.WayPoint;
075import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
076import org.openstreetmap.josm.gui.ExtendedDialog;
077import org.openstreetmap.josm.gui.MainApplication;
078import org.openstreetmap.josm.gui.io.importexport.GpxImporter;
079import org.openstreetmap.josm.gui.io.importexport.JpgImporter;
080import org.openstreetmap.josm.gui.io.importexport.NMEAImporter;
081import org.openstreetmap.josm.gui.io.importexport.RtkLibImporter;
082import org.openstreetmap.josm.gui.layer.GpxLayer;
083import org.openstreetmap.josm.gui.layer.Layer;
084import org.openstreetmap.josm.gui.layer.LayerManager.LayerAddEvent;
085import org.openstreetmap.josm.gui.layer.LayerManager.LayerChangeListener;
086import org.openstreetmap.josm.gui.layer.LayerManager.LayerOrderChangeEvent;
087import org.openstreetmap.josm.gui.layer.LayerManager.LayerRemoveEvent;
088import org.openstreetmap.josm.gui.widgets.AbstractFileChooser;
089import org.openstreetmap.josm.gui.widgets.FileChooserManager;
090import org.openstreetmap.josm.gui.widgets.JosmComboBox;
091import org.openstreetmap.josm.gui.widgets.JosmTextField;
092import org.openstreetmap.josm.io.Compression;
093import org.openstreetmap.josm.io.GpxReader;
094import org.openstreetmap.josm.io.IGpxReader;
095import org.openstreetmap.josm.io.nmea.NmeaReader;
096import org.openstreetmap.josm.spi.preferences.Config;
097import org.openstreetmap.josm.spi.preferences.IPreferences;
098import org.openstreetmap.josm.tools.GBC;
099import org.openstreetmap.josm.tools.ImageProvider;
100import org.openstreetmap.josm.tools.JosmRuntimeException;
101import org.openstreetmap.josm.tools.Logging;
102import org.openstreetmap.josm.tools.Pair;
103import org.openstreetmap.josm.tools.date.DateUtils;
104import org.xml.sax.SAXException;
105
106/**
107 * This class displays the window to select the GPX file and the offset (timezone + delta).
108 * Then it correlates the images of the layer with that GPX file.
109 * @since 2566
110 */
111public class CorrelateGpxWithImages extends AbstractAction {
112
113    private static final List<GpxData> loadedGpxData = new ArrayList<>();
114
115    private final transient GeoImageLayer yLayer;
116    private transient GpxTimezone timezone;
117    private transient GpxTimeOffset delta;
118    private static boolean forceTags;
119
120    /**
121     * Constructs a new {@code CorrelateGpxWithImages} action.
122     * @param layer The image layer
123     */
124    public CorrelateGpxWithImages(GeoImageLayer layer) {
125        super(tr("Correlate to GPX"));
126        new ImageProvider("dialogs/geoimage/gpx2img").getResource().attachImageIcon(this, true);
127        this.yLayer = layer;
128        MainApplication.getLayerManager().addLayerChangeListener(new GpxLayerAddedListener());
129    }
130
131    private final class SyncDialogWindowListener extends WindowAdapter {
132        private static final int CANCEL = -1;
133        private static final int DONE = 0;
134        private static final int AGAIN = 1;
135        private static final int NOTHING = 2;
136
137        private int checkAndSave() {
138            if (syncDialog.isVisible())
139                // nothing happened: JOSM was minimized or similar
140                return NOTHING;
141            int answer = syncDialog.getValue();
142            if (answer != 1)
143                return CANCEL;
144
145            // Parse values again, to display an error if the format is not recognized
146            try {
147                timezone = GpxTimezone.parseTimezone(tfTimezone.getText().trim());
148            } catch (ParseException e) {
149                JOptionPane.showMessageDialog(MainApplication.getMainFrame(), e.getMessage(),
150                        tr("Invalid timezone"), JOptionPane.ERROR_MESSAGE);
151                return AGAIN;
152            }
153
154            try {
155                delta = GpxTimeOffset.parseOffset(tfOffset.getText().trim());
156            } catch (ParseException e) {
157                JOptionPane.showMessageDialog(MainApplication.getMainFrame(), e.getMessage(),
158                        tr("Invalid offset"), JOptionPane.ERROR_MESSAGE);
159                return AGAIN;
160            }
161
162            if (lastNumMatched == 0 && new ExtendedDialog(
163                        MainApplication.getMainFrame(),
164                        tr("Correlate images with GPX track"),
165                        tr("OK"), tr("Try Again")).
166                        setContent(tr("No images could be matched!")).
167                        setButtonIcons("ok", "dialogs/refresh").
168                        showDialog().getValue() == 2)
169                return AGAIN;
170            return DONE;
171        }
172
173        @Override
174        public void windowDeactivated(WindowEvent e) {
175            int result = checkAndSave();
176            switch (result) {
177            case NOTHING:
178                break;
179            case CANCEL:
180                if (yLayer != null) {
181                    for (ImageEntry ie : yLayer.getImageData().getImages()) {
182                        ie.discardTmp();
183                    }
184                    yLayer.updateBufferAndRepaint();
185                }
186                break;
187            case AGAIN:
188                actionPerformed(null);
189                break;
190            case DONE:
191                Config.getPref().put("geoimage.timezone", timezone.formatTimezone());
192                Config.getPref().put("geoimage.delta", delta.formatOffset());
193                Config.getPref().putBoolean("geoimage.showThumbs", yLayer.useThumbs);
194
195                yLayer.useThumbs = cbShowThumbs.isSelected();
196                yLayer.startLoadThumbs();
197
198                // Search whether an other layer has yet defined some bounding box.
199                // If none, we'll zoom to the bounding box of the layer with the photos.
200                boolean boundingBoxedLayerFound = false;
201                for (Layer l: MainApplication.getLayerManager().getLayers()) {
202                    if (l != yLayer) {
203                        BoundingXYVisitor bbox = new BoundingXYVisitor();
204                        l.visitBoundingBox(bbox);
205                        if (bbox.getBounds() != null) {
206                            boundingBoxedLayerFound = true;
207                            break;
208                        }
209                    }
210                }
211                if (!boundingBoxedLayerFound) {
212                    BoundingXYVisitor bbox = new BoundingXYVisitor();
213                    yLayer.visitBoundingBox(bbox);
214                    MainApplication.getMap().mapView.zoomTo(bbox);
215                }
216
217                for (ImageEntry ie : yLayer.getImageData().getImages()) {
218                    ie.applyTmp();
219                }
220
221                yLayer.updateBufferAndRepaint();
222
223                break;
224            default:
225                throw new IllegalStateException();
226            }
227        }
228    }
229
230    private static class GpxDataWrapper {
231        private final String name;
232        private final GpxData data;
233        private final File file;
234
235        GpxDataWrapper(String name, GpxData data, File file) {
236            this.name = name;
237            this.data = data;
238            this.file = file;
239        }
240
241        @Override
242        public String toString() {
243            return name;
244        }
245    }
246
247    private ExtendedDialog syncDialog;
248    private final transient List<GpxDataWrapper> gpxLst = new ArrayList<>();
249    private JPanel outerPanel;
250    private JosmComboBox<GpxDataWrapper> cbGpx;
251    private JosmTextField tfTimezone;
252    private JosmTextField tfOffset;
253    private JCheckBox cbExifImg;
254    private JCheckBox cbTaggedImg;
255    private JCheckBox cbShowThumbs;
256    private JLabel statusBarText;
257
258    // remember the last number of matched photos
259    private int lastNumMatched;
260
261    /** This class is called when the user doesn't find the GPX file he needs in the files that have
262     * been loaded yet. It displays a FileChooser dialog to select the GPX file to be loaded.
263     */
264    private class LoadGpxDataActionListener implements ActionListener {
265
266        @Override
267        public void actionPerformed(ActionEvent e) {
268            ExtensionFileFilter gpxFilter = GpxImporter.getFileFilter();
269            AbstractFileChooser fc = new FileChooserManager(true, null).createFileChooser(false, null,
270                    Arrays.asList(gpxFilter, NMEAImporter.FILE_FILTER, RtkLibImporter.FILE_FILTER), gpxFilter, JFileChooser.FILES_ONLY)
271                    .openFileChooser();
272            if (fc == null)
273                return;
274            File sel = fc.getSelectedFile();
275
276            try {
277                outerPanel.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
278
279                for (int i = gpxLst.size() - 1; i >= 0; i--) {
280                    GpxDataWrapper wrapper = gpxLst.get(i);
281                    if (sel.equals(wrapper.file)) {
282                        cbGpx.setSelectedIndex(i);
283                        if (!sel.getName().equals(wrapper.name)) {
284                            JOptionPane.showMessageDialog(
285                                    MainApplication.getMainFrame(),
286                                    tr("File {0} is loaded yet under the name \"{1}\"", sel.getName(), wrapper.name),
287                                    tr("Error"),
288                                    JOptionPane.ERROR_MESSAGE
289                            );
290                        }
291                        return;
292                    }
293                }
294                GpxData data = null;
295                try (InputStream iStream = Compression.getUncompressedFileInputStream(sel)) {
296                    IGpxReader reader = gpxFilter.accept(sel) ? new GpxReader(iStream) : new NmeaReader(iStream);
297                    reader.parse(false);
298                    data = reader.getGpxData();
299                    data.storageFile = sel;
300
301                } catch (SAXException ex) {
302                    Logging.error(ex);
303                    JOptionPane.showMessageDialog(
304                            MainApplication.getMainFrame(),
305                            tr("Error while parsing {0}", sel.getName())+": "+ex.getMessage(),
306                            tr("Error"),
307                            JOptionPane.ERROR_MESSAGE
308                    );
309                    return;
310                } catch (IOException ex) {
311                    Logging.error(ex);
312                    JOptionPane.showMessageDialog(
313                            MainApplication.getMainFrame(),
314                            tr("Could not read \"{0}\"", sel.getName())+'\n'+ex.getMessage(),
315                            tr("Error"),
316                            JOptionPane.ERROR_MESSAGE
317                    );
318                    return;
319                }
320
321                MutableComboBoxModel<GpxDataWrapper> model = (MutableComboBoxModel<GpxDataWrapper>) cbGpx.getModel();
322                loadedGpxData.add(data);
323                if (gpxLst.get(0).file == null) {
324                    gpxLst.remove(0);
325                    model.removeElementAt(0);
326                }
327                GpxDataWrapper elem = new GpxDataWrapper(sel.getName(), data, sel);
328                gpxLst.add(elem);
329                model.addElement(elem);
330                cbGpx.setSelectedIndex(cbGpx.getItemCount() - 1);
331            } finally {
332                outerPanel.setCursor(Cursor.getDefaultCursor());
333            }
334        }
335    }
336
337    private class AdvancedSettingsActionListener implements ActionListener {
338
339        private class CheckBoxActionListener implements ActionListener {
340            private final JComponent[] comps;
341
342            CheckBoxActionListener(JComponent... c) {
343                comps = Objects.requireNonNull(c);
344            }
345
346            @Override
347            public void actionPerformed(ActionEvent e) {
348                setEnabled((JCheckBox) e.getSource());
349            }
350
351            public void setEnabled(JCheckBox cb) {
352                for (JComponent comp : comps) {
353                    if (comp instanceof JSpinner) {
354                        comp.setEnabled(cb.isSelected());
355                    } else if (comp instanceof JPanel) {
356                        boolean en = cb.isSelected();
357                        for (Component c : comp.getComponents()) {
358                            if (c instanceof JSpinner) {
359                                c.setEnabled(en);
360                            } else {
361                                c.setEnabled(cb.isSelected());
362                                if (en && c instanceof JCheckBox) {
363                                    en = ((JCheckBox) c).isSelected();
364                                }
365                            }
366                        }
367                    }
368                }
369            }
370        }
371
372        private void addCheckBoxActionListener(JCheckBox cb, JComponent... c) {
373            CheckBoxActionListener listener = new CheckBoxActionListener(c);
374            cb.addActionListener(listener);
375            listener.setEnabled(cb);
376        }
377
378        @Override
379        public void actionPerformed(ActionEvent e) {
380
381            IPreferences s = Config.getPref();
382            JPanel p = new JPanel(new GridBagLayout());
383
384            Border border1 = BorderFactory.createEmptyBorder(0, 20, 0, 0);
385            Border border2 = BorderFactory.createEmptyBorder(10, 0, 5, 0);
386            Border border = BorderFactory.createEmptyBorder(0, 40, 0, 0);
387            FlowLayout layout = new FlowLayout();
388
389            JLabel l = new JLabel(tr("Segment settings"));
390            l.setBorder(BorderFactory.createEmptyBorder(5, 0, 5, 0));
391            p.add(l, GBC.eol());
392            JCheckBox cInterpolSeg = new JCheckBox(tr("Interpolate between segments"), s.getBoolean("geoimage.seg.int", true));
393            cInterpolSeg.setBorder(border1);
394            p.add(cInterpolSeg, GBC.eol());
395
396            JCheckBox cInterpolSegTime = new JCheckBox(tr("only when the segments are less than # minutes apart:"),
397                    s.getBoolean("geoimage.seg.int.time", true));
398            JSpinner sInterpolSegTime = new JSpinner(
399                    new SpinnerNumberModel(s.getInt("geoimage.seg.int.time.val", 60), 0, Integer.MAX_VALUE, 1));
400            ((JSpinner.DefaultEditor) sInterpolSegTime.getEditor()).getTextField().setColumns(3);
401            JPanel pInterpolSegTime = new JPanel(layout);
402            pInterpolSegTime.add(cInterpolSegTime);
403            pInterpolSegTime.add(sInterpolSegTime);
404            pInterpolSegTime.setBorder(border);
405            p.add(pInterpolSegTime, GBC.eol());
406
407            JCheckBox cInterpolSegDist = new JCheckBox(tr("only when the segments are less than # meters apart:"),
408                    s.getBoolean("geoimage.seg.int.dist", true));
409            JSpinner sInterpolSegDist = new JSpinner(
410                    new SpinnerNumberModel(s.getInt("geoimage.seg.int.dist.val", 50), 0, Integer.MAX_VALUE, 1));
411            ((JSpinner.DefaultEditor) sInterpolSegDist.getEditor()).getTextField().setColumns(3);
412            JPanel pInterpolSegDist = new JPanel(layout);
413            pInterpolSegDist.add(cInterpolSegDist);
414            pInterpolSegDist.add(sInterpolSegDist);
415            pInterpolSegDist.setBorder(border);
416            p.add(pInterpolSegDist, GBC.eol());
417
418            JCheckBox cTagSeg = new JCheckBox(tr("Tag images at the closest end of a segment, when not interpolated"),
419                    s.getBoolean("geoimage.seg.tag", true));
420            cTagSeg.setBorder(border1);
421            p.add(cTagSeg, GBC.eol());
422
423            JCheckBox cTagSegTime = new JCheckBox(tr("only within # minutes of the closest trackpoint:"),
424                    s.getBoolean("geoimage.seg.tag.time", true));
425            JSpinner sTagSegTime = new JSpinner(
426                    new SpinnerNumberModel(s.getInt("geoimage.seg.tag.time.val", 2), 0, Integer.MAX_VALUE, 1));
427            ((JSpinner.DefaultEditor) sTagSegTime.getEditor()).getTextField().setColumns(3);
428            JPanel pTagSegTime = new JPanel(layout);
429            pTagSegTime.add(cTagSegTime);
430            pTagSegTime.add(sTagSegTime);
431            pTagSegTime.setBorder(border);
432            p.add(pTagSegTime, GBC.eol());
433
434            l = new JLabel(tr("Track settings (note that multiple tracks can be in one GPX file)"));
435            l.setBorder(border2);
436            p.add(l, GBC.eol());
437            JCheckBox cInterpolTrack = new JCheckBox(tr("Interpolate between tracks"), s.getBoolean("geoimage.trk.int", false));
438            cInterpolTrack.setBorder(border1);
439            p.add(cInterpolTrack, GBC.eol());
440
441            JCheckBox cInterpolTrackTime = new JCheckBox(tr("only when the tracks are less than # minutes apart:"),
442                    s.getBoolean("geoimage.trk.int.time", false));
443            JSpinner sInterpolTrackTime = new JSpinner(
444                    new SpinnerNumberModel(s.getInt("geoimage.trk.int.time.val", 60), 0, Integer.MAX_VALUE, 1));
445            ((JSpinner.DefaultEditor) sInterpolTrackTime.getEditor()).getTextField().setColumns(3);
446            JPanel pInterpolTrackTime = new JPanel(layout);
447            pInterpolTrackTime.add(cInterpolTrackTime);
448            pInterpolTrackTime.add(sInterpolTrackTime);
449            pInterpolTrackTime.setBorder(border);
450            p.add(pInterpolTrackTime, GBC.eol());
451
452            JCheckBox cInterpolTrackDist = new JCheckBox(tr("only when the tracks are less than # meters apart:"),
453                    s.getBoolean("geoimage.trk.int.dist", false));
454            JSpinner sInterpolTrackDist = new JSpinner(
455                    new SpinnerNumberModel(s.getInt("geoimage.trk.int.dist.val", 50), 0, Integer.MAX_VALUE, 1));
456            ((JSpinner.DefaultEditor) sInterpolTrackDist.getEditor()).getTextField().setColumns(3);
457            JPanel pInterpolTrackDist = new JPanel(layout);
458            pInterpolTrackDist.add(cInterpolTrackDist);
459            pInterpolTrackDist.add(sInterpolTrackDist);
460            pInterpolTrackDist.setBorder(border);
461            p.add(pInterpolTrackDist, GBC.eol());
462
463            JCheckBox cTagTrack = new JCheckBox("<html>" +
464                    tr("Tag images at the closest end of a track, when not interpolated<br>" +
465                    "(also applies before the first and after the last track)") + "</html>",
466                    s.getBoolean("geoimage.trk.tag", true));
467            cTagTrack.setBorder(border1);
468            p.add(cTagTrack, GBC.eol());
469
470            JCheckBox cTagTrackTime = new JCheckBox(tr("only within # minutes of the closest trackpoint:"),
471                    s.getBoolean("geoimage.trk.tag.time", true));
472            JSpinner sTagTrackTime = new JSpinner(
473                    new SpinnerNumberModel(s.getInt("geoimage.trk.tag.time.val", 2), 0, Integer.MAX_VALUE, 1));
474            ((JSpinner.DefaultEditor) sTagTrackTime.getEditor()).getTextField().setColumns(3);
475            JPanel pTagTrackTime = new JPanel(layout);
476            pTagTrackTime.add(cTagTrackTime);
477            pTagTrackTime.add(sTagTrackTime);
478            pTagTrackTime.setBorder(border);
479            p.add(pTagTrackTime, GBC.eol());
480
481            l = new JLabel(tr("Advanced"));
482            l.setBorder(border2);
483            p.add(l, GBC.eol());
484            JCheckBox cForce = new JCheckBox("<html>" +
485                    tr("Force tagging of all pictures (temporarily overrides the settings above).") + "<br>" +
486                    tr("This option will not be saved permanently.") + "</html>", forceTags);
487            cForce.setBorder(BorderFactory.createEmptyBorder(0, 20, 10, 0));
488            p.add(cForce, GBC.eol());
489
490            addCheckBoxActionListener(cInterpolSegTime, sInterpolSegTime);
491            addCheckBoxActionListener(cInterpolSegDist, sInterpolSegDist);
492            addCheckBoxActionListener(cInterpolSeg, pInterpolSegTime, pInterpolSegDist);
493
494            addCheckBoxActionListener(cTagSegTime, sTagSegTime);
495            addCheckBoxActionListener(cTagSeg, pTagSegTime);
496
497            addCheckBoxActionListener(cInterpolTrackTime, sInterpolTrackTime);
498            addCheckBoxActionListener(cInterpolTrackDist, sInterpolTrackDist);
499            addCheckBoxActionListener(cInterpolTrack, pInterpolTrackTime, pInterpolTrackDist);
500
501            addCheckBoxActionListener(cTagTrackTime, sTagTrackTime);
502            addCheckBoxActionListener(cTagTrack, pTagTrackTime);
503
504
505            ExtendedDialog ed = new ExtendedDialog(MainApplication.getMainFrame(), tr("Advanced settings"), tr("OK"), tr("Cancel"))
506                            .setButtonIcons("ok", "cancel").setContent(p);
507            if (ed.showDialog().getValue() == 1) {
508
509                s.putBoolean("geoimage.seg.int", cInterpolSeg.isSelected());
510                s.putBoolean("geoimage.seg.int.dist", cInterpolSegDist.isSelected());
511                s.putInt("geoimage.seg.int.dist.val", (int) sInterpolSegDist.getValue());
512                s.putBoolean("geoimage.seg.int.time", cInterpolSegTime.isSelected());
513                s.putInt("geoimage.seg.int.time.val", (int) sInterpolSegTime.getValue());
514                s.putBoolean("geoimage.seg.tag", cTagSeg.isSelected());
515                s.putBoolean("geoimage.seg.tag.time", cTagSegTime.isSelected());
516                s.putInt("geoimage.seg.tag.time.val", (int) sTagSegTime.getValue());
517
518                s.putBoolean("geoimage.trk.int", cInterpolTrack.isSelected());
519                s.putBoolean("geoimage.trk.int.dist", cInterpolTrackDist.isSelected());
520                s.putInt("geoimage.trk.int.dist.val", (int) sInterpolTrackDist.getValue());
521                s.putBoolean("geoimage.trk.int.time", cInterpolTrackTime.isSelected());
522                s.putInt("geoimage.trk.int.time.val", (int) sInterpolTrackTime.getValue());
523                s.putBoolean("geoimage.trk.tag", cTagTrack.isSelected());
524                s.putBoolean("geoimage.trk.tag.time", cTagTrackTime.isSelected());
525                s.putInt("geoimage.trk.tag.time.val", (int) sTagTrackTime.getValue());
526
527                forceTags = cForce.isSelected(); // This setting is not supposed to be saved permanently
528
529                statusBarUpdater.updateStatusBar();
530                yLayer.updateBufferAndRepaint();
531            }
532        }
533    }
534
535    /**
536     * This action listener is called when the user has a photo of the time of his GPS receiver. It
537     * displays the list of photos of the layer, and upon selection displays the selected photo.
538     * From that photo, the user can key in the time of the GPS.
539     * Then values of timezone and delta are set.
540     * @author chris
541     *
542     */
543    private class SetOffsetActionListener implements ActionListener {
544        JCheckBox ckDst;
545        ImageDisplay imgDisp;
546        JLabel lbExifTime;
547        JosmTextField tfGpsTime;
548
549        class TimeZoneItem implements Comparable<TimeZoneItem> {
550            private final TimeZone tz;
551            private String rawString;
552            private String dstString;
553
554            TimeZoneItem(TimeZone tz) {
555                this.tz = tz;
556            }
557
558            public String getFormattedString() {
559                if (ckDst.isSelected()) {
560                    return getDstString();
561                } else {
562                    return getRawString();
563                }
564            }
565
566            public String getDstString() {
567                if (dstString == null) {
568                    dstString = formatTimezone(tz.getRawOffset() + tz.getDSTSavings());
569                }
570                return dstString;
571            }
572
573            public String getRawString() {
574                if (rawString == null) {
575                    rawString = formatTimezone(tz.getRawOffset());
576                }
577                return rawString;
578            }
579
580            public String getID() {
581                return tz.getID();
582            }
583
584            @Override
585            public String toString() {
586                return getID() + " (" + getFormattedString() + ')';
587            }
588
589            @Override
590            public int compareTo(TimeZoneItem o) {
591                return getID().compareTo(o.getID());
592            }
593
594            private String formatTimezone(int offset) {
595                return new GpxTimezone((double) offset / TimeUnit.HOURS.toMillis(1)).formatTimezone();
596            }
597        }
598
599        @Override
600        public void actionPerformed(ActionEvent e) {
601            SimpleDateFormat dateFormat = (SimpleDateFormat) DateUtils.getDateTimeFormat(DateFormat.SHORT, DateFormat.MEDIUM);
602
603            JPanel panel = new JPanel(new BorderLayout());
604            panel.add(new JLabel(tr("<html>Take a photo of your GPS receiver while it displays the time.<br>"
605                    + "Display that photo here.<br>"
606                    + "And then, simply capture the time you read on the photo and select a timezone<hr></html>")),
607                    BorderLayout.NORTH);
608
609            imgDisp = new ImageDisplay();
610            imgDisp.setPreferredSize(new Dimension(300, 225));
611            panel.add(imgDisp, BorderLayout.CENTER);
612
613            JPanel panelTf = new JPanel(new GridBagLayout());
614
615            GridBagConstraints gc = new GridBagConstraints();
616            gc.gridx = gc.gridy = 0;
617            gc.gridwidth = gc.gridheight = 1;
618            gc.weightx = gc.weighty = 0.0;
619            gc.fill = GridBagConstraints.NONE;
620            gc.anchor = GridBagConstraints.WEST;
621            panelTf.add(new JLabel(tr("Photo time (from exif):")), gc);
622
623            lbExifTime = new JLabel();
624            gc.gridx = 1;
625            gc.weightx = 1.0;
626            gc.fill = GridBagConstraints.HORIZONTAL;
627            gc.gridwidth = 2;
628            panelTf.add(lbExifTime, gc);
629
630            gc.gridx = 0;
631            gc.gridy = 1;
632            gc.gridwidth = gc.gridheight = 1;
633            gc.weightx = gc.weighty = 0.0;
634            gc.fill = GridBagConstraints.NONE;
635            gc.anchor = GridBagConstraints.WEST;
636            panelTf.add(new JLabel(tr("Gps time (read from the above photo): ")), gc);
637
638            tfGpsTime = new JosmTextField(12);
639            tfGpsTime.setEnabled(false);
640            tfGpsTime.setMinimumSize(new Dimension(155, tfGpsTime.getMinimumSize().height));
641            gc.gridx = 1;
642            gc.weightx = 1.0;
643            gc.fill = GridBagConstraints.HORIZONTAL;
644            panelTf.add(tfGpsTime, gc);
645
646            gc.gridx = 2;
647            gc.weightx = 0.2;
648            panelTf.add(new JLabel(" ["+dateFormat.toLocalizedPattern()+']'), gc);
649
650            gc.gridx = 0;
651            gc.gridy = 2;
652            gc.gridwidth = gc.gridheight = 1;
653            gc.weightx = gc.weighty = 0.0;
654            gc.fill = GridBagConstraints.NONE;
655            gc.anchor = GridBagConstraints.WEST;
656            panelTf.add(new JLabel(tr("Photo taken in the timezone of: ")), gc);
657
658            ckDst = new JCheckBox(tr("Use daylight saving time (where applicable)"), Config.getPref().getBoolean("geoimage.timezoneid.dst"));
659
660            String[] tmp = TimeZone.getAvailableIDs();
661            List<TimeZoneItem> vtTimezones = new ArrayList<>(tmp.length);
662
663            String defTzStr = Config.getPref().get("geoimage.timezoneid", "");
664            if (defTzStr.isEmpty()) {
665                defTzStr = TimeZone.getDefault().getID();
666            }
667            TimeZoneItem defTzItem = null;
668
669            for (String tzStr : tmp) {
670                TimeZoneItem tz = new TimeZoneItem(TimeZone.getTimeZone(tzStr));
671                vtTimezones.add(tz);
672                if (defTzStr.equals(tzStr)) {
673                    defTzItem = tz;
674                }
675            }
676
677            Collections.sort(vtTimezones);
678
679            JosmComboBox<TimeZoneItem> cbTimezones = new JosmComboBox<>(vtTimezones.toArray(new TimeZoneItem[0]));
680
681            if (defTzItem != null) {
682                cbTimezones.setSelectedItem(defTzItem);
683            }
684
685            gc.gridx = 1;
686            gc.weightx = 1.0;
687            gc.gridwidth = 2;
688            gc.fill = GridBagConstraints.HORIZONTAL;
689            panelTf.add(cbTimezones, gc);
690
691            gc.gridy = 3;
692            panelTf.add(ckDst, gc);
693
694            ckDst.addActionListener(x -> cbTimezones.repaint());
695
696            panel.add(panelTf, BorderLayout.SOUTH);
697
698            JPanel panelLst = new JPanel(new BorderLayout());
699
700            JList<String> imgList = new JList<>(new AbstractListModel<String>() {
701                @Override
702                public String getElementAt(int i) {
703                    return yLayer.getImageData().getImages().get(i).getFile().getName();
704                }
705
706                @Override
707                public int getSize() {
708                    return yLayer.getImageData().getImages().size();
709                }
710            });
711            imgList.getSelectionModel().setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
712            imgList.getSelectionModel().addListSelectionListener(evt -> {
713                int index = imgList.getSelectedIndex();
714                ImageEntry img = yLayer.getImageData().getImages().get(index);
715                updateExifComponents(img);
716            });
717            panelLst.add(new JScrollPane(imgList), BorderLayout.CENTER);
718
719            JButton openButton = new JButton(tr("Open another photo"));
720            openButton.addActionListener(ae -> {
721                AbstractFileChooser fc = DiskAccessAction.createAndOpenFileChooser(true, false, null,
722                        JpgImporter.FILE_FILTER_WITH_FOLDERS, JFileChooser.FILES_ONLY, "geoimage.lastdirectory");
723                if (fc == null)
724                    return;
725                ImageEntry entry = new ImageEntry(fc.getSelectedFile());
726                entry.extractExif();
727                updateExifComponents(entry);
728            });
729            panelLst.add(openButton, BorderLayout.PAGE_END);
730
731            panel.add(panelLst, BorderLayout.LINE_START);
732
733            boolean isOk = false;
734            while (!isOk) {
735                int answer = JOptionPane.showConfirmDialog(
736                        MainApplication.getMainFrame(), panel,
737                        tr("Synchronize time from a photo of the GPS receiver"),
738                        JOptionPane.OK_CANCEL_OPTION,
739                        JOptionPane.QUESTION_MESSAGE
740                );
741                if (answer == JOptionPane.CANCEL_OPTION)
742                    return;
743
744                long delta;
745
746                try {
747                    delta = dateFormat.parse(lbExifTime.getText()).getTime()
748                          - dateFormat.parse(tfGpsTime.getText()).getTime();
749                } catch (ParseException ex) {
750                    JOptionPane.showMessageDialog(MainApplication.getMainFrame(), tr("Error while parsing the date.\n"
751                            + "Please use the requested format"),
752                            tr("Invalid date"), JOptionPane.ERROR_MESSAGE);
753                    continue;
754                }
755
756                TimeZoneItem selectedTz = (TimeZoneItem) cbTimezones.getSelectedItem();
757
758                Config.getPref().put("geoimage.timezoneid", selectedTz.getID());
759                Config.getPref().putBoolean("geoimage.timezoneid.dst", ckDst.isSelected());
760                tfOffset.setText(GpxTimeOffset.milliseconds(delta).formatOffset());
761                tfTimezone.setText(selectedTz.getFormattedString());
762
763                isOk = true;
764
765            }
766            statusBarUpdater.updateStatusBar();
767            yLayer.updateBufferAndRepaint();
768        }
769
770        void updateExifComponents(ImageEntry img) {
771            imgDisp.setImage(img);
772            Date date = img.getExifTime();
773            if (date != null) {
774                DateFormat df = DateUtils.getDateTimeFormat(DateFormat.SHORT, DateFormat.MEDIUM);
775                df.setTimeZone(DateUtils.UTC); // EXIF data does not contain timezone information and is read as UTC
776                lbExifTime.setText(df.format(date));
777                tfGpsTime.setText(df.format(date));
778                tfGpsTime.setCaretPosition(tfGpsTime.getText().length());
779                tfGpsTime.setEnabled(true);
780                tfGpsTime.requestFocus();
781            } else {
782                lbExifTime.setText(tr("No date"));
783                tfGpsTime.setText("");
784                tfGpsTime.setEnabled(false);
785            }
786        }
787    }
788
789    private class GpxLayerAddedListener implements LayerChangeListener {
790        @Override
791        public void layerAdded(LayerAddEvent e) {
792            if (syncDialog != null && syncDialog.isVisible()) {
793                Layer layer = e.getAddedLayer();
794                if (layer instanceof GpxLayer) {
795                    GpxLayer gpx = (GpxLayer) layer;
796                    GpxDataWrapper gdw = new GpxDataWrapper(gpx.getName(), gpx.data, gpx.data.storageFile);
797                    gpxLst.add(gdw);
798                    MutableComboBoxModel<GpxDataWrapper> model = (MutableComboBoxModel<GpxDataWrapper>) cbGpx.getModel();
799                    if (gpxLst.get(0).file == null) {
800                        gpxLst.remove(0);
801                        model.removeElementAt(0);
802                    }
803                    model.addElement(gdw);
804                }
805            }
806        }
807
808        @Override
809        public void layerRemoving(LayerRemoveEvent e) {
810            // Not used
811        }
812
813        @Override
814        public void layerOrderChanged(LayerOrderChangeEvent e) {
815            // Not used
816        }
817    }
818
819    @Override
820    public void actionPerformed(ActionEvent ae) {
821        // Construct the list of loaded GPX tracks
822        gpxLst.clear();
823        GpxDataWrapper defaultItem = null;
824        for (GpxLayer cur : MainApplication.getLayerManager().getLayersOfType(GpxLayer.class)) {
825            GpxDataWrapper gdw = new GpxDataWrapper(cur.getName(), cur.data, cur.data.storageFile);
826            gpxLst.add(gdw);
827            if (cur == yLayer.gpxLayer) {
828                defaultItem = gdw;
829            }
830        }
831        for (GpxData data : loadedGpxData) {
832            gpxLst.add(new GpxDataWrapper(data.storageFile.getName(),
833                    data,
834                    data.storageFile));
835        }
836
837        if (gpxLst.isEmpty()) {
838            gpxLst.add(new GpxDataWrapper(tr("<No GPX track loaded yet>"), null, null));
839        }
840
841        JPanel panelCb = new JPanel();
842
843        panelCb.add(new JLabel(tr("GPX track: ")));
844
845        cbGpx = new JosmComboBox<>(gpxLst.toArray(new GpxDataWrapper[0]));
846        if (defaultItem != null) {
847            cbGpx.setSelectedItem(defaultItem);
848        } else {
849            // select first GPX track associated to a file
850            gpxLst.stream().filter(i -> i.file != null).findFirst().ifPresent(cbGpx::setSelectedItem);
851        }
852        cbGpx.addActionListener(statusBarUpdaterWithRepaint);
853        panelCb.add(cbGpx);
854
855        JButton buttonOpen = new JButton(tr("Open another GPX trace"));
856        buttonOpen.addActionListener(new LoadGpxDataActionListener());
857        panelCb.add(buttonOpen);
858
859        JPanel panelTf = new JPanel(new GridBagLayout());
860
861        try {
862            String tz = Config.getPref().get("geoimage.timezone");
863            if (!tz.isEmpty()) {
864                timezone = GpxTimezone.parseTimezone(tz);
865            } else {
866                timezone = new GpxTimezone(TimeUnit.MILLISECONDS.toMinutes(TimeZone.getDefault().getRawOffset()) / 60.); //hours is double
867            }
868        } catch (ParseException e) {
869            timezone = GpxTimezone.ZERO;
870            Logging.trace(e);
871        }
872
873        tfTimezone = new JosmTextField(10);
874        tfTimezone.setText(timezone.formatTimezone());
875
876        try {
877            delta = GpxTimeOffset.parseOffset(Config.getPref().get("geoimage.delta", "0"));
878        } catch (ParseException e) {
879            delta = GpxTimeOffset.ZERO;
880            Logging.trace(e);
881        }
882
883        tfOffset = new JosmTextField(10);
884        tfOffset.setText(delta.formatOffset());
885
886        JButton buttonViewGpsPhoto = new JButton(tr("<html>Use photo of an accurate clock,<br>e.g. GPS receiver display</html>"));
887        buttonViewGpsPhoto.setIcon(ImageProvider.get("clock"));
888        buttonViewGpsPhoto.addActionListener(new SetOffsetActionListener());
889
890        JButton buttonAutoGuess = new JButton(tr("Auto-Guess"));
891        buttonAutoGuess.setToolTipText(tr("Matches first photo with first gpx point"));
892        buttonAutoGuess.addActionListener(new AutoGuessActionListener());
893
894        JButton buttonAdjust = new JButton(tr("Manual adjust"));
895        buttonAdjust.addActionListener(new AdjustActionListener());
896
897        JButton buttonAdvanced = new JButton(tr("Advanced settings..."));
898        buttonAdvanced.addActionListener(new AdvancedSettingsActionListener());
899
900        JLabel labelPosition = new JLabel(tr("Override position for: "));
901
902        int numAll = getSortedImgList(true, true).size();
903        int numExif = numAll - getSortedImgList(false, true).size();
904        int numTagged = numAll - getSortedImgList(true, false).size();
905
906        cbExifImg = new JCheckBox(tr("Images with geo location in exif data ({0}/{1})", numExif, numAll));
907        cbExifImg.setEnabled(numExif != 0);
908
909        cbTaggedImg = new JCheckBox(tr("Images that are already tagged ({0}/{1})", numTagged, numAll), true);
910        cbTaggedImg.setEnabled(numTagged != 0);
911
912        labelPosition.setEnabled(cbExifImg.isEnabled() || cbTaggedImg.isEnabled());
913
914        boolean ticked = yLayer.thumbsLoaded || Config.getPref().getBoolean("geoimage.showThumbs", false);
915        cbShowThumbs = new JCheckBox(tr("Show Thumbnail images on the map"), ticked);
916        cbShowThumbs.setEnabled(!yLayer.thumbsLoaded);
917
918        int y = 0;
919        GBC gbc = GBC.eol();
920        gbc.gridx = 0;
921        gbc.gridy = y++;
922        panelTf.add(panelCb, gbc);
923
924        gbc = GBC.eol().fill(GBC.HORIZONTAL).insets(0, 0, 0, 12);
925        gbc.gridx = 0;
926        gbc.gridy = y++;
927        panelTf.add(new JSeparator(SwingConstants.HORIZONTAL), gbc);
928
929        gbc = GBC.std();
930        gbc.gridx = 0;
931        gbc.gridy = y;
932        panelTf.add(new JLabel(tr("Timezone: ")), gbc);
933
934        gbc = GBC.std().fill(GBC.HORIZONTAL);
935        gbc.gridx = 1;
936        gbc.gridy = y++;
937        gbc.weightx = 1.;
938        panelTf.add(tfTimezone, gbc);
939
940        gbc = GBC.std();
941        gbc.gridx = 0;
942        gbc.gridy = y;
943        panelTf.add(new JLabel(tr("Offset:")), gbc);
944
945        gbc = GBC.std().fill(GBC.HORIZONTAL);
946        gbc.gridx = 1;
947        gbc.gridy = y++;
948        gbc.weightx = 1.;
949        panelTf.add(tfOffset, gbc);
950
951        gbc = GBC.std().insets(5, 5, 5, 5);
952        gbc.gridx = 2;
953        gbc.gridy = y-2;
954        gbc.gridheight = 2;
955        gbc.gridwidth = 2;
956        gbc.fill = GridBagConstraints.BOTH;
957        gbc.weightx = 0.5;
958        panelTf.add(buttonViewGpsPhoto, gbc);
959
960        gbc = GBC.std().fill(GBC.BOTH).insets(5, 5, 5, 5);
961        gbc.gridx = 1;
962        gbc.gridy = y++;
963        gbc.weightx = 0.5;
964        panelTf.add(buttonAdvanced, gbc);
965
966        gbc.gridx = 2;
967        panelTf.add(buttonAutoGuess, gbc);
968
969        gbc.gridx = 3;
970        panelTf.add(buttonAdjust, gbc);
971
972        gbc = GBC.eol().fill(GBC.HORIZONTAL).insets(0, 12, 0, 0);
973        gbc.gridx = 0;
974        gbc.gridy = y++;
975        panelTf.add(new JSeparator(SwingConstants.HORIZONTAL), gbc);
976
977        gbc = GBC.eol();
978        gbc.gridx = 0;
979        gbc.gridy = y++;
980        panelTf.add(labelPosition, gbc);
981
982        gbc = GBC.eol();
983        gbc.gridx = 1;
984        gbc.gridy = y++;
985        panelTf.add(cbExifImg, gbc);
986
987        gbc = GBC.eol();
988        gbc.gridx = 1;
989        gbc.gridy = y++;
990        panelTf.add(cbTaggedImg, gbc);
991
992        gbc = GBC.eol();
993        gbc.gridx = 0;
994        gbc.gridy = y;
995        panelTf.add(cbShowThumbs, gbc);
996
997        final JPanel statusBar = new JPanel(new FlowLayout(FlowLayout.LEFT, 0, 0));
998        statusBar.setBorder(BorderFactory.createLoweredBevelBorder());
999        statusBarText = new JLabel(" ");
1000        statusBarText.setFont(statusBarText.getFont().deriveFont(8));
1001        statusBar.add(statusBarText);
1002
1003        tfTimezone.addFocusListener(repaintTheMap);
1004        tfOffset.addFocusListener(repaintTheMap);
1005
1006        tfTimezone.getDocument().addDocumentListener(statusBarUpdater);
1007        tfOffset.getDocument().addDocumentListener(statusBarUpdater);
1008        cbExifImg.addItemListener(statusBarUpdaterWithRepaint);
1009        cbTaggedImg.addItemListener(statusBarUpdaterWithRepaint);
1010
1011        statusBarUpdater.updateStatusBar();
1012        yLayer.updateBufferAndRepaint();
1013
1014        outerPanel = new JPanel(new BorderLayout());
1015        outerPanel.add(statusBar, BorderLayout.PAGE_END);
1016
1017        if (!GraphicsEnvironment.isHeadless()) {
1018            syncDialog = new ExtendedDialog(
1019                    MainApplication.getMainFrame(),
1020                    tr("Correlate images with GPX track"),
1021                    new String[] {tr("Correlate"), tr("Cancel")},
1022                    false
1023            );
1024            syncDialog.setContent(panelTf, false);
1025            syncDialog.setButtonIcons("ok", "cancel");
1026            syncDialog.setupDialog();
1027            outerPanel.add(syncDialog.getContentPane(), BorderLayout.PAGE_START);
1028            syncDialog.setContentPane(outerPanel);
1029            syncDialog.pack();
1030            syncDialog.addWindowListener(new SyncDialogWindowListener());
1031            syncDialog.showDialog();
1032        }
1033    }
1034
1035    private final transient StatusBarUpdater statusBarUpdater = new StatusBarUpdater(false);
1036    private final transient StatusBarUpdater statusBarUpdaterWithRepaint = new StatusBarUpdater(true);
1037
1038    private class StatusBarUpdater implements DocumentListener, ItemListener, ActionListener {
1039        private final boolean doRepaint;
1040
1041        StatusBarUpdater(boolean doRepaint) {
1042            this.doRepaint = doRepaint;
1043        }
1044
1045        @Override
1046        public void insertUpdate(DocumentEvent ev) {
1047            updateStatusBar();
1048        }
1049
1050        @Override
1051        public void removeUpdate(DocumentEvent ev) {
1052            updateStatusBar();
1053        }
1054
1055        @Override
1056        public void changedUpdate(DocumentEvent ev) {
1057            // Do nothing
1058        }
1059
1060        @Override
1061        public void itemStateChanged(ItemEvent e) {
1062            updateStatusBar();
1063        }
1064
1065        @Override
1066        public void actionPerformed(ActionEvent e) {
1067            updateStatusBar();
1068        }
1069
1070        public void updateStatusBar() {
1071            statusBarText.setText(statusText());
1072            if (doRepaint) {
1073                yLayer.updateBufferAndRepaint();
1074            }
1075        }
1076
1077        private String statusText() {
1078            try {
1079                timezone = GpxTimezone.parseTimezone(tfTimezone.getText().trim());
1080                delta = GpxTimeOffset.parseOffset(tfOffset.getText().trim());
1081            } catch (ParseException e) {
1082                return e.getMessage();
1083            }
1084
1085            // The selection of images we are about to correlate may have changed.
1086            // So reset all images.
1087            for (ImageEntry ie: yLayer.getImageData().getImages()) {
1088                ie.discardTmp();
1089            }
1090
1091            // Construct a list of images that have a date, and sort them on the date.
1092            List<ImageEntry> dateImgLst = getSortedImgList();
1093            // Create a temporary copy for each image
1094            for (ImageEntry ie : dateImgLst) {
1095                ie.createTmp();
1096                ie.getTmp().setPos(null);
1097            }
1098
1099            GpxDataWrapper selGpx = selectedGPX(false);
1100            if (selGpx == null)
1101                return tr("No gpx selected");
1102
1103            final long offsetMs = ((long) (timezone.getHours() * TimeUnit.HOURS.toMillis(1))) + delta.getMilliseconds(); // in milliseconds
1104            lastNumMatched = GpxImageCorrelation.matchGpxTrack(dateImgLst, selGpx.data, offsetMs, forceTags);
1105
1106            return trn("<html>Matched <b>{0}</b> of <b>{1}</b> photo to GPX track.</html>",
1107                    "<html>Matched <b>{0}</b> of <b>{1}</b> photos to GPX track.</html>",
1108                    dateImgLst.size(), lastNumMatched, dateImgLst.size());
1109        }
1110    }
1111
1112    private final transient RepaintTheMapListener repaintTheMap = new RepaintTheMapListener();
1113
1114    private class RepaintTheMapListener implements FocusListener {
1115        @Override
1116        public void focusGained(FocusEvent e) { // do nothing
1117        }
1118
1119        @Override
1120        public void focusLost(FocusEvent e) {
1121            yLayer.updateBufferAndRepaint();
1122        }
1123    }
1124
1125    /**
1126     * Presents dialog with sliders for manual adjust.
1127     */
1128    private class AdjustActionListener implements ActionListener {
1129
1130        @Override
1131        public void actionPerformed(ActionEvent arg0) {
1132
1133            final GpxTimeOffset offset = GpxTimeOffset.milliseconds(
1134                    delta.getMilliseconds() + Math.round(timezone.getHours() * TimeUnit.HOURS.toMillis(1)));
1135            final int dayOffset = offset.getDayOffset();
1136            final Pair<GpxTimezone, GpxTimeOffset> timezoneOffsetPair = offset.withoutDayOffset().splitOutTimezone();
1137
1138            // Info Labels
1139            final JLabel lblMatches = new JLabel();
1140
1141            // Timezone Slider
1142            // The slider allows to switch timezon from -12:00 to 12:00 in 30 minutes steps. Therefore the range is -24 to 24.
1143            final JLabel lblTimezone = new JLabel();
1144            final JSlider sldTimezone = new JSlider(-24, 24, 0);
1145            sldTimezone.setPaintLabels(true);
1146            Dictionary<Integer, JLabel> labelTable = new Hashtable<>();
1147            // CHECKSTYLE.OFF: ParenPad
1148            for (int i = -12; i <= 12; i += 6) {
1149                labelTable.put(i * 2, new JLabel(new GpxTimezone(i).formatTimezone()));
1150            }
1151            // CHECKSTYLE.ON: ParenPad
1152            sldTimezone.setLabelTable(labelTable);
1153
1154            // Minutes Slider
1155            final JLabel lblMinutes = new JLabel();
1156            final JSlider sldMinutes = new JSlider(-15, 15, 0);
1157            sldMinutes.setPaintLabels(true);
1158            sldMinutes.setMajorTickSpacing(5);
1159
1160            // Seconds slider
1161            final JLabel lblSeconds = new JLabel();
1162            final JSlider sldSeconds = new JSlider(-600, 600, 0);
1163            sldSeconds.setPaintLabels(true);
1164            labelTable = new Hashtable<>();
1165            // CHECKSTYLE.OFF: ParenPad
1166            for (int i = -60; i <= 60; i += 30) {
1167                labelTable.put(i * 10, new JLabel(GpxTimeOffset.seconds(i).formatOffset()));
1168            }
1169            // CHECKSTYLE.ON: ParenPad
1170            sldSeconds.setLabelTable(labelTable);
1171            sldSeconds.setMajorTickSpacing(300);
1172
1173            // This is called whenever one of the sliders is moved.
1174            // It updates the labels and also calls the "match photos" code
1175            class SliderListener implements ChangeListener {
1176                @Override
1177                public void stateChanged(ChangeEvent e) {
1178                    timezone = new GpxTimezone(sldTimezone.getValue() / 2.);
1179
1180                    lblTimezone.setText(tr("Timezone: {0}", timezone.formatTimezone()));
1181                    lblMinutes.setText(tr("Minutes: {0}", sldMinutes.getValue()));
1182                    lblSeconds.setText(tr("Seconds: {0}", GpxTimeOffset.milliseconds(100L * sldSeconds.getValue()).formatOffset()));
1183
1184                    delta = GpxTimeOffset.milliseconds(100L * sldSeconds.getValue()
1185                            + TimeUnit.MINUTES.toMillis(sldMinutes.getValue())
1186                            + TimeUnit.DAYS.toMillis(dayOffset));
1187
1188                    tfTimezone.getDocument().removeDocumentListener(statusBarUpdater);
1189                    tfOffset.getDocument().removeDocumentListener(statusBarUpdater);
1190
1191                    tfTimezone.setText(timezone.formatTimezone());
1192                    tfOffset.setText(delta.formatOffset());
1193
1194                    tfTimezone.getDocument().addDocumentListener(statusBarUpdater);
1195                    tfOffset.getDocument().addDocumentListener(statusBarUpdater);
1196
1197                    lblMatches.setText(statusBarText.getText() + "<br>" + trn("(Time difference of {0} day)",
1198                            "Time difference of {0} days", Math.abs(dayOffset), Math.abs(dayOffset)));
1199
1200                    statusBarUpdater.updateStatusBar();
1201                    yLayer.updateBufferAndRepaint();
1202                }
1203            }
1204
1205            // Put everything together
1206            JPanel p = new JPanel(new GridBagLayout());
1207            p.setPreferredSize(new Dimension(400, 230));
1208            p.add(lblMatches, GBC.eol().fill());
1209            p.add(lblTimezone, GBC.eol().fill());
1210            p.add(sldTimezone, GBC.eol().fill().insets(0, 0, 0, 10));
1211            p.add(lblMinutes, GBC.eol().fill());
1212            p.add(sldMinutes, GBC.eol().fill().insets(0, 0, 0, 10));
1213            p.add(lblSeconds, GBC.eol().fill());
1214            p.add(sldSeconds, GBC.eol().fill());
1215
1216            // If there's an error in the calculation the found values
1217            // will be off range for the sliders. Catch this error
1218            // and inform the user about it.
1219            try {
1220                sldTimezone.setValue((int) (timezoneOffsetPair.a.getHours() * 2));
1221                sldMinutes.setValue((int) (timezoneOffsetPair.b.getSeconds() / 60));
1222                final long deciSeconds = timezoneOffsetPair.b.getMilliseconds() / 100;
1223                sldSeconds.setValue((int) (deciSeconds % 600));
1224            } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException e) {
1225                Logging.warn(e);
1226                JOptionPane.showMessageDialog(MainApplication.getMainFrame(),
1227                        tr("An error occurred while trying to match the photos to the GPX track."
1228                                +" You can adjust the sliders to manually match the photos."),
1229                                tr("Matching photos to track failed"),
1230                                JOptionPane.WARNING_MESSAGE);
1231            }
1232
1233            // Call the sliderListener once manually so labels get adjusted
1234            new SliderListener().stateChanged(null);
1235            // Listeners added here, otherwise it tries to match three times
1236            // (when setting the default values)
1237            sldTimezone.addChangeListener(new SliderListener());
1238            sldMinutes.addChangeListener(new SliderListener());
1239            sldSeconds.addChangeListener(new SliderListener());
1240
1241            // There is no way to cancel this dialog, all changes get applied
1242            // immediately. Therefore "Close" is marked with an "OK" icon.
1243            // Settings are only saved temporarily to the layer.
1244            new ExtendedDialog(MainApplication.getMainFrame(),
1245                    tr("Adjust timezone and offset"),
1246                    tr("Close")).
1247                    setContent(p).setButtonIcons("ok").showDialog();
1248        }
1249    }
1250
1251    static class NoGpxTimestamps extends Exception {
1252    }
1253
1254    /**
1255     * Tries to auto-guess the timezone and offset.
1256     *
1257     * @param imgs the images to correlate
1258     * @param gpx the gpx track to correlate to
1259     * @return a pair of timezone and offset
1260     * @throws IndexOutOfBoundsException when there are no images
1261     * @throws NoGpxTimestamps when the gpx track does not contain a timestamp
1262     */
1263    static Pair<GpxTimezone, GpxTimeOffset> autoGuess(List<ImageEntry> imgs, GpxData gpx) throws NoGpxTimestamps {
1264
1265        // Init variables
1266        long firstExifDate = imgs.get(0).getExifTime().getTime();
1267
1268        long firstGPXDate = -1;
1269        // Finds first GPX point
1270        outer: for (GpxTrack trk : gpx.tracks) {
1271            for (GpxTrackSegment segment : trk.getSegments()) {
1272                for (WayPoint curWp : segment.getWayPoints()) {
1273                    if (curWp.hasDate()) {
1274                        firstGPXDate = curWp.getTimeInMillis();
1275                        break outer;
1276                    }
1277                }
1278            }
1279        }
1280
1281        if (firstGPXDate < 0) {
1282            throw new NoGpxTimestamps();
1283        }
1284
1285        return GpxTimeOffset.milliseconds(firstExifDate - firstGPXDate).splitOutTimezone();
1286    }
1287
1288    private class AutoGuessActionListener implements ActionListener {
1289
1290        @Override
1291        public void actionPerformed(ActionEvent arg0) {
1292            GpxDataWrapper gpxW = selectedGPX(true);
1293            if (gpxW == null)
1294                return;
1295            GpxData gpx = gpxW.data;
1296
1297            List<ImageEntry> imgs = getSortedImgList();
1298
1299            try {
1300                final Pair<GpxTimezone, GpxTimeOffset> r = autoGuess(imgs, gpx);
1301                timezone = r.a;
1302                delta = r.b;
1303            } catch (IndexOutOfBoundsException ex) {
1304                Logging.debug(ex);
1305                JOptionPane.showMessageDialog(MainApplication.getMainFrame(),
1306                        tr("The selected photos do not contain time information."),
1307                        tr("Photos do not contain time information"), JOptionPane.WARNING_MESSAGE);
1308                return;
1309            } catch (NoGpxTimestamps ex) {
1310                Logging.debug(ex);
1311                JOptionPane.showMessageDialog(MainApplication.getMainFrame(),
1312                        tr("The selected GPX track does not contain timestamps. Please select another one."),
1313                        tr("GPX Track has no time information"), JOptionPane.WARNING_MESSAGE);
1314                return;
1315            }
1316
1317            tfTimezone.getDocument().removeDocumentListener(statusBarUpdater);
1318            tfOffset.getDocument().removeDocumentListener(statusBarUpdater);
1319
1320            tfTimezone.setText(timezone.formatTimezone());
1321            tfOffset.setText(delta.formatOffset());
1322            tfOffset.requestFocus();
1323
1324            tfTimezone.getDocument().addDocumentListener(statusBarUpdater);
1325            tfOffset.getDocument().addDocumentListener(statusBarUpdater);
1326
1327            statusBarUpdater.updateStatusBar();
1328            yLayer.updateBufferAndRepaint();
1329        }
1330    }
1331
1332    private List<ImageEntry> getSortedImgList() {
1333        return getSortedImgList(cbExifImg.isSelected(), cbTaggedImg.isSelected());
1334    }
1335
1336    /**
1337     * Returns a list of images that fulfill the given criteria.
1338     * Default setting is to return untagged images, but may be overwritten.
1339     * @param exif also returns images with exif-gps info
1340     * @param tagged also returns tagged images
1341     * @return matching images
1342     */
1343    private List<ImageEntry> getSortedImgList(boolean exif, boolean tagged) {
1344        List<ImageEntry> dateImgLst = new ArrayList<>(yLayer.getImageData().getImages().size());
1345        for (ImageEntry e : yLayer.getImageData().getImages()) {
1346            if (!e.hasExifTime()) {
1347                continue;
1348            }
1349
1350            if (e.getExifCoor() != null && !exif) {
1351                continue;
1352            }
1353
1354            if (!tagged && e.isTagged() && e.getExifCoor() == null) {
1355                continue;
1356            }
1357
1358            dateImgLst.add(e);
1359        }
1360
1361        dateImgLst.sort(Comparator.comparing(ImageEntry::getExifTime));
1362
1363        return dateImgLst;
1364    }
1365
1366    private GpxDataWrapper selectedGPX(boolean complain) {
1367        Object item = cbGpx.getSelectedItem();
1368
1369        if (item == null || ((GpxDataWrapper) item).file == null) {
1370            if (complain) {
1371                JOptionPane.showMessageDialog(MainApplication.getMainFrame(), tr("You should select a GPX track"),
1372                        tr("No selected GPX track"), JOptionPane.ERROR_MESSAGE);
1373            }
1374            return null;
1375        }
1376        return (GpxDataWrapper) item;
1377    }
1378
1379}