source: josm/trunk/src/org/openstreetmap/josm/gui/layer/geoimage/CorrelateGpxWithImages.java@ 12671

Last change on this file since 12671 was 12671, checked in by Don-vip, 7 years ago

see #15182 - move file importers/exporters from io package to gui.io.importexport package, as they rely heavily on GUI and are mainly used from Open/Save actions
  • Property svn:eol-style set to native
File size: 48.3 KB
Line 
1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.gui.layer.geoimage;
3
4import static org.openstreetmap.josm.tools.I18n.tr;
5import static org.openstreetmap.josm.tools.I18n.trn;
6
7import java.awt.BorderLayout;
8import java.awt.Cursor;
9import java.awt.Dimension;
10import java.awt.FlowLayout;
11import java.awt.GraphicsEnvironment;
12import java.awt.GridBagConstraints;
13import java.awt.GridBagLayout;
14import java.awt.event.ActionEvent;
15import java.awt.event.ActionListener;
16import java.awt.event.FocusEvent;
17import java.awt.event.FocusListener;
18import java.awt.event.ItemEvent;
19import java.awt.event.ItemListener;
20import java.awt.event.WindowAdapter;
21import java.awt.event.WindowEvent;
22import java.io.File;
23import java.io.FileInputStream;
24import java.io.IOException;
25import java.io.InputStream;
26import java.text.DateFormat;
27import java.text.ParseException;
28import java.text.SimpleDateFormat;
29import java.util.ArrayList;
30import java.util.Collection;
31import java.util.Collections;
32import java.util.Comparator;
33import java.util.Date;
34import java.util.Dictionary;
35import java.util.Hashtable;
36import java.util.List;
37import java.util.Optional;
38import java.util.TimeZone;
39import java.util.concurrent.TimeUnit;
40import java.util.zip.GZIPInputStream;
41
42import javax.swing.AbstractAction;
43import javax.swing.AbstractListModel;
44import javax.swing.BorderFactory;
45import javax.swing.JButton;
46import javax.swing.JCheckBox;
47import javax.swing.JFileChooser;
48import javax.swing.JLabel;
49import javax.swing.JList;
50import javax.swing.JOptionPane;
51import javax.swing.JPanel;
52import javax.swing.JScrollPane;
53import javax.swing.JSeparator;
54import javax.swing.JSlider;
55import javax.swing.ListSelectionModel;
56import javax.swing.MutableComboBoxModel;
57import javax.swing.SwingConstants;
58import javax.swing.event.ChangeEvent;
59import javax.swing.event.ChangeListener;
60import javax.swing.event.DocumentEvent;
61import javax.swing.event.DocumentListener;
62import javax.swing.filechooser.FileFilter;
63
64import org.openstreetmap.josm.Main;
65import org.openstreetmap.josm.actions.DiskAccessAction;
66import org.openstreetmap.josm.data.gpx.GpxConstants;
67import org.openstreetmap.josm.data.gpx.GpxData;
68import org.openstreetmap.josm.data.gpx.GpxTrack;
69import org.openstreetmap.josm.data.gpx.GpxTrackSegment;
70import org.openstreetmap.josm.data.gpx.WayPoint;
71import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
72import org.openstreetmap.josm.gui.ExtendedDialog;
73import org.openstreetmap.josm.gui.MainApplication;
74import org.openstreetmap.josm.gui.io.importexport.JpgImporter;
75import org.openstreetmap.josm.gui.layer.GpxLayer;
76import org.openstreetmap.josm.gui.layer.Layer;
77import org.openstreetmap.josm.gui.widgets.AbstractFileChooser;
78import org.openstreetmap.josm.gui.widgets.JosmComboBox;
79import org.openstreetmap.josm.gui.widgets.JosmTextField;
80import org.openstreetmap.josm.io.GpxReader;
81import org.openstreetmap.josm.tools.ExifReader;
82import org.openstreetmap.josm.tools.GBC;
83import org.openstreetmap.josm.tools.ImageProvider;
84import org.openstreetmap.josm.tools.JosmRuntimeException;
85import org.openstreetmap.josm.tools.Logging;
86import org.openstreetmap.josm.tools.Pair;
87import org.openstreetmap.josm.tools.Utils;
88import org.openstreetmap.josm.tools.date.DateUtils;
89import org.xml.sax.SAXException;
90
91/**
92 * This class displays the window to select the GPX file and the offset (timezone + delta).
93 * Then it correlates the images of the layer with that GPX file.
94 */
95public class CorrelateGpxWithImages extends AbstractAction {
96
97 private static List<GpxData> loadedGpxData = new ArrayList<>();
98
99 private final transient GeoImageLayer yLayer;
100 private transient Timezone timezone;
101 private transient Offset delta;
102
103 /**
104 * Constructs a new {@code CorrelateGpxWithImages} action.
105 * @param layer The image layer
106 */
107 public CorrelateGpxWithImages(GeoImageLayer layer) {
108 super(tr("Correlate to GPX"), ImageProvider.get("dialogs/geoimage/gpx2img"));
109 this.yLayer = layer;
110 }
111
112 private final class SyncDialogWindowListener extends WindowAdapter {
113 private static final int CANCEL = -1;
114 private static final int DONE = 0;
115 private static final int AGAIN = 1;
116 private static final int NOTHING = 2;
117
118 private int checkAndSave() {
119 if (syncDialog.isVisible())
120 // nothing happened: JOSM was minimized or similar
121 return NOTHING;
122 int answer = syncDialog.getValue();
123 if (answer != 1)
124 return CANCEL;
125
126 // Parse values again, to display an error if the format is not recognized
127 try {
128 timezone = Timezone.parseTimezone(tfTimezone.getText().trim());
129 } catch (ParseException e) {
130 JOptionPane.showMessageDialog(Main.parent, e.getMessage(),
131 tr("Invalid timezone"), JOptionPane.ERROR_MESSAGE);
132 return AGAIN;
133 }
134
135 try {
136 delta = Offset.parseOffset(tfOffset.getText().trim());
137 } catch (ParseException e) {
138 JOptionPane.showMessageDialog(Main.parent, e.getMessage(),
139 tr("Invalid offset"), JOptionPane.ERROR_MESSAGE);
140 return AGAIN;
141 }
142
143 if (lastNumMatched == 0 && new ExtendedDialog(
144 Main.parent,
145 tr("Correlate images with GPX track"),
146 tr("OK"), tr("Try Again")).
147 setContent(tr("No images could be matched!")).
148 setButtonIcons("ok", "dialogs/refresh").
149 showDialog().getValue() == 2)
150 return AGAIN;
151 return DONE;
152 }
153
154 @Override
155 public void windowDeactivated(WindowEvent e) {
156 int result = checkAndSave();
157 switch (result) {
158 case NOTHING:
159 break;
160 case CANCEL:
161 if (yLayer != null) {
162 if (yLayer.data != null) {
163 for (ImageEntry ie : yLayer.data) {
164 ie.discardTmp();
165 }
166 }
167 yLayer.updateBufferAndRepaint();
168 }
169 break;
170 case AGAIN:
171 actionPerformed(null);
172 break;
173 case DONE:
174 Main.pref.put("geoimage.timezone", timezone.formatTimezone());
175 Main.pref.put("geoimage.delta", delta.formatOffset());
176 Main.pref.put("geoimage.showThumbs", yLayer.useThumbs);
177
178 yLayer.useThumbs = cbShowThumbs.isSelected();
179 yLayer.startLoadThumbs();
180
181 // Search whether an other layer has yet defined some bounding box.
182 // If none, we'll zoom to the bounding box of the layer with the photos.
183 boolean boundingBoxedLayerFound = false;
184 for (Layer l: MainApplication.getLayerManager().getLayers()) {
185 if (l != yLayer) {
186 BoundingXYVisitor bbox = new BoundingXYVisitor();
187 l.visitBoundingBox(bbox);
188 if (bbox.getBounds() != null) {
189 boundingBoxedLayerFound = true;
190 break;
191 }
192 }
193 }
194 if (!boundingBoxedLayerFound) {
195 BoundingXYVisitor bbox = new BoundingXYVisitor();
196 yLayer.visitBoundingBox(bbox);
197 MainApplication.getMap().mapView.zoomTo(bbox);
198 }
199
200 if (yLayer.data != null) {
201 for (ImageEntry ie : yLayer.data) {
202 ie.applyTmp();
203 }
204 }
205
206 yLayer.updateBufferAndRepaint();
207
208 break;
209 default:
210 throw new IllegalStateException();
211 }
212 }
213 }
214
215 private static class GpxDataWrapper {
216 private final String name;
217 private final GpxData data;
218 private final File file;
219
220 GpxDataWrapper(String name, GpxData data, File file) {
221 this.name = name;
222 this.data = data;
223 this.file = file;
224 }
225
226 @Override
227 public String toString() {
228 return name;
229 }
230 }
231
232 private ExtendedDialog syncDialog;
233 private final transient List<GpxDataWrapper> gpxLst = new ArrayList<>();
234 private JPanel outerPanel;
235 private JosmComboBox<GpxDataWrapper> cbGpx;
236 private JosmTextField tfTimezone;
237 private JosmTextField tfOffset;
238 private JCheckBox cbExifImg;
239 private JCheckBox cbTaggedImg;
240 private JCheckBox cbShowThumbs;
241 private JLabel statusBarText;
242
243 // remember the last number of matched photos
244 private int lastNumMatched;
245
246 /** This class is called when the user doesn't find the GPX file he needs in the files that have
247 * been loaded yet. It displays a FileChooser dialog to select the GPX file to be loaded.
248 */
249 private class LoadGpxDataActionListener implements ActionListener {
250
251 @Override
252 public void actionPerformed(ActionEvent arg0) {
253 FileFilter filter = new FileFilter() {
254 @Override
255 public boolean accept(File f) {
256 return f.isDirectory() || Utils.hasExtension(f, "gpx", "gpx.gz");
257 }
258
259 @Override
260 public String getDescription() {
261 return tr("GPX Files (*.gpx *.gpx.gz)");
262 }
263 };
264 AbstractFileChooser fc = DiskAccessAction.createAndOpenFileChooser(true, false, null, filter, JFileChooser.FILES_ONLY, null);
265 if (fc == null)
266 return;
267 File sel = fc.getSelectedFile();
268
269 try {
270 outerPanel.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
271
272 for (int i = gpxLst.size() - 1; i >= 0; i--) {
273 GpxDataWrapper wrapper = gpxLst.get(i);
274 if (sel.equals(wrapper.file)) {
275 cbGpx.setSelectedIndex(i);
276 if (!sel.getName().equals(wrapper.name)) {
277 JOptionPane.showMessageDialog(
278 Main.parent,
279 tr("File {0} is loaded yet under the name \"{1}\"", sel.getName(), wrapper.name),
280 tr("Error"),
281 JOptionPane.ERROR_MESSAGE
282 );
283 }
284 return;
285 }
286 }
287 GpxData data = null;
288 try (InputStream iStream = createInputStream(sel)) {
289 GpxReader reader = new GpxReader(iStream);
290 reader.parse(false);
291 data = reader.getGpxData();
292 data.storageFile = sel;
293
294 } catch (SAXException ex) {
295 Logging.error(ex);
296 JOptionPane.showMessageDialog(
297 Main.parent,
298 tr("Error while parsing {0}", sel.getName())+": "+ex.getMessage(),
299 tr("Error"),
300 JOptionPane.ERROR_MESSAGE
301 );
302 return;
303 } catch (IOException ex) {
304 Logging.error(ex);
305 JOptionPane.showMessageDialog(
306 Main.parent,
307 tr("Could not read \"{0}\"", sel.getName())+'\n'+ex.getMessage(),
308 tr("Error"),
309 JOptionPane.ERROR_MESSAGE
310 );
311 return;
312 }
313
314 MutableComboBoxModel<GpxDataWrapper> model = (MutableComboBoxModel<GpxDataWrapper>) cbGpx.getModel();
315 loadedGpxData.add(data);
316 if (gpxLst.get(0).file == null) {
317 gpxLst.remove(0);
318 model.removeElementAt(0);
319 }
320 GpxDataWrapper elem = new GpxDataWrapper(sel.getName(), data, sel);
321 gpxLst.add(elem);
322 model.addElement(elem);
323 cbGpx.setSelectedIndex(cbGpx.getItemCount() - 1);
324 } finally {
325 outerPanel.setCursor(Cursor.getDefaultCursor());
326 }
327 }
328
329 private InputStream createInputStream(File sel) throws IOException {
330 if (Utils.hasExtension(sel, "gpx.gz")) {
331 return new GZIPInputStream(new FileInputStream(sel));
332 } else {
333 return new FileInputStream(sel);
334 }
335 }
336 }
337
338 /**
339 * This action listener is called when the user has a photo of the time of his GPS receiver. It
340 * displays the list of photos of the layer, and upon selection displays the selected photo.
341 * From that photo, the user can key in the time of the GPS.
342 * Then values of timezone and delta are set.
343 * @author chris
344 *
345 */
346 private class SetOffsetActionListener implements ActionListener {
347
348 @Override
349 public void actionPerformed(ActionEvent arg0) {
350 SimpleDateFormat dateFormat = (SimpleDateFormat) DateUtils.getDateTimeFormat(DateFormat.SHORT, DateFormat.MEDIUM);
351
352 JPanel panel = new JPanel(new BorderLayout());
353 panel.add(new JLabel(tr("<html>Take a photo of your GPS receiver while it displays the time.<br>"
354 + "Display that photo here.<br>"
355 + "And then, simply capture the time you read on the photo and select a timezone<hr></html>")),
356 BorderLayout.NORTH);
357
358 ImageDisplay imgDisp = new ImageDisplay();
359 imgDisp.setPreferredSize(new Dimension(300, 225));
360 panel.add(imgDisp, BorderLayout.CENTER);
361
362 JPanel panelTf = new JPanel(new GridBagLayout());
363
364 GridBagConstraints gc = new GridBagConstraints();
365 gc.gridx = gc.gridy = 0;
366 gc.gridwidth = gc.gridheight = 1;
367 gc.weightx = gc.weighty = 0.0;
368 gc.fill = GridBagConstraints.NONE;
369 gc.anchor = GridBagConstraints.WEST;
370 panelTf.add(new JLabel(tr("Photo time (from exif):")), gc);
371
372 JLabel lbExifTime = new JLabel();
373 gc.gridx = 1;
374 gc.weightx = 1.0;
375 gc.fill = GridBagConstraints.HORIZONTAL;
376 gc.gridwidth = 2;
377 panelTf.add(lbExifTime, gc);
378
379 gc.gridx = 0;
380 gc.gridy = 1;
381 gc.gridwidth = gc.gridheight = 1;
382 gc.weightx = gc.weighty = 0.0;
383 gc.fill = GridBagConstraints.NONE;
384 gc.anchor = GridBagConstraints.WEST;
385 panelTf.add(new JLabel(tr("Gps time (read from the above photo): ")), gc);
386
387 JosmTextField tfGpsTime = new JosmTextField(12);
388 tfGpsTime.setEnabled(false);
389 tfGpsTime.setMinimumSize(new Dimension(155, tfGpsTime.getMinimumSize().height));
390 gc.gridx = 1;
391 gc.weightx = 1.0;
392 gc.fill = GridBagConstraints.HORIZONTAL;
393 panelTf.add(tfGpsTime, gc);
394
395 gc.gridx = 2;
396 gc.weightx = 0.2;
397 panelTf.add(new JLabel(" ["+dateFormat.toLocalizedPattern()+']'), gc);
398
399 gc.gridx = 0;
400 gc.gridy = 2;
401 gc.gridwidth = gc.gridheight = 1;
402 gc.weightx = gc.weighty = 0.0;
403 gc.fill = GridBagConstraints.NONE;
404 gc.anchor = GridBagConstraints.WEST;
405 panelTf.add(new JLabel(tr("I am in the timezone of: ")), gc);
406
407 String[] tmp = TimeZone.getAvailableIDs();
408 List<String> vtTimezones = new ArrayList<>(tmp.length);
409
410 for (String tzStr : tmp) {
411 TimeZone tz = TimeZone.getTimeZone(tzStr);
412
413 String tzDesc = tzStr + " (" +
414 new Timezone(((double) tz.getRawOffset()) / TimeUnit.HOURS.toMillis(1)).formatTimezone() +
415 ')';
416 vtTimezones.add(tzDesc);
417 }
418
419 Collections.sort(vtTimezones);
420
421 JosmComboBox<String> cbTimezones = new JosmComboBox<>(vtTimezones.toArray(new String[vtTimezones.size()]));
422
423 String tzId = Main.pref.get("geoimage.timezoneid", "");
424 TimeZone defaultTz;
425 if (tzId.isEmpty()) {
426 defaultTz = TimeZone.getDefault();
427 } else {
428 defaultTz = TimeZone.getTimeZone(tzId);
429 }
430
431 cbTimezones.setSelectedItem(defaultTz.getID() + " (" +
432 new Timezone(((double) defaultTz.getRawOffset()) / TimeUnit.HOURS.toMillis(1)).formatTimezone() +
433 ')');
434
435 gc.gridx = 1;
436 gc.weightx = 1.0;
437 gc.gridwidth = 2;
438 gc.fill = GridBagConstraints.HORIZONTAL;
439 panelTf.add(cbTimezones, gc);
440
441 panel.add(panelTf, BorderLayout.SOUTH);
442
443 JPanel panelLst = new JPanel(new BorderLayout());
444
445 JList<String> imgList = new JList<>(new AbstractListModel<String>() {
446 @Override
447 public String getElementAt(int i) {
448 return yLayer.data.get(i).getFile().getName();
449 }
450
451 @Override
452 public int getSize() {
453 return yLayer.data != null ? yLayer.data.size() : 0;
454 }
455 });
456 imgList.getSelectionModel().setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
457 imgList.getSelectionModel().addListSelectionListener(evt -> {
458 int index = imgList.getSelectedIndex();
459 Integer orientation = ExifReader.readOrientation(yLayer.data.get(index).getFile());
460 imgDisp.setImage(yLayer.data.get(index).getFile(), orientation);
461 Date date = yLayer.data.get(index).getExifTime();
462 if (date != null) {
463 DateFormat df = DateUtils.getDateTimeFormat(DateFormat.SHORT, DateFormat.MEDIUM);
464 lbExifTime.setText(df.format(date));
465 tfGpsTime.setText(df.format(date));
466 tfGpsTime.setCaretPosition(tfGpsTime.getText().length());
467 tfGpsTime.setEnabled(true);
468 tfGpsTime.requestFocus();
469 } else {
470 lbExifTime.setText(tr("No date"));
471 tfGpsTime.setText("");
472 tfGpsTime.setEnabled(false);
473 }
474 });
475 panelLst.add(new JScrollPane(imgList), BorderLayout.CENTER);
476
477 JButton openButton = new JButton(tr("Open another photo"));
478 openButton.addActionListener(ae -> {
479 AbstractFileChooser fc = DiskAccessAction.createAndOpenFileChooser(true, false, null,
480 JpgImporter.FILE_FILTER_WITH_FOLDERS, JFileChooser.FILES_ONLY, "geoimage.lastdirectory");
481 if (fc == null)
482 return;
483 File sel = fc.getSelectedFile();
484
485 Integer orientation = ExifReader.readOrientation(sel);
486 imgDisp.setImage(sel, orientation);
487
488 Date date = ExifReader.readTime(sel);
489 if (date != null) {
490 lbExifTime.setText(DateUtils.getDateTimeFormat(DateFormat.SHORT, DateFormat.MEDIUM).format(date));
491 tfGpsTime.setText(DateUtils.getDateFormat(DateFormat.SHORT).format(date)+' ');
492 tfGpsTime.setEnabled(true);
493 } else {
494 lbExifTime.setText(tr("No date"));
495 tfGpsTime.setText("");
496 tfGpsTime.setEnabled(false);
497 }
498 });
499 panelLst.add(openButton, BorderLayout.PAGE_END);
500
501 panel.add(panelLst, BorderLayout.LINE_START);
502
503 boolean isOk = false;
504 while (!isOk) {
505 int answer = JOptionPane.showConfirmDialog(
506 Main.parent, panel,
507 tr("Synchronize time from a photo of the GPS receiver"),
508 JOptionPane.OK_CANCEL_OPTION,
509 JOptionPane.QUESTION_MESSAGE
510 );
511 if (answer == JOptionPane.CANCEL_OPTION)
512 return;
513
514 long delta;
515
516 try {
517 delta = dateFormat.parse(lbExifTime.getText()).getTime()
518 - dateFormat.parse(tfGpsTime.getText()).getTime();
519 } catch (ParseException e) {
520 JOptionPane.showMessageDialog(Main.parent, tr("Error while parsing the date.\n"
521 + "Please use the requested format"),
522 tr("Invalid date"), JOptionPane.ERROR_MESSAGE);
523 continue;
524 }
525
526 String selectedTz = (String) cbTimezones.getSelectedItem();
527 int pos = selectedTz.lastIndexOf('(');
528 tzId = selectedTz.substring(0, pos - 1);
529 String tzValue = selectedTz.substring(pos + 1, selectedTz.length() - 1);
530
531 Main.pref.put("geoimage.timezoneid", tzId);
532 tfOffset.setText(Offset.milliseconds(delta).formatOffset());
533 tfTimezone.setText(tzValue);
534
535 isOk = true;
536
537 }
538 statusBarUpdater.updateStatusBar();
539 yLayer.updateBufferAndRepaint();
540 }
541 }
542
543 @Override
544 public void actionPerformed(ActionEvent ae) {
545 // Construct the list of loaded GPX tracks
546 Collection<Layer> layerLst = MainApplication.getLayerManager().getLayers();
547 GpxDataWrapper defaultItem = null;
548 for (Layer cur : layerLst) {
549 if (cur instanceof GpxLayer) {
550 GpxLayer curGpx = (GpxLayer) cur;
551 GpxDataWrapper gdw = new GpxDataWrapper(curGpx.getName(), curGpx.data, curGpx.data.storageFile);
552 gpxLst.add(gdw);
553 if (cur == yLayer.gpxLayer) {
554 defaultItem = gdw;
555 }
556 }
557 }
558 for (GpxData data : loadedGpxData) {
559 gpxLst.add(new GpxDataWrapper(data.storageFile.getName(),
560 data,
561 data.storageFile));
562 }
563
564 if (gpxLst.isEmpty()) {
565 gpxLst.add(new GpxDataWrapper(tr("<No GPX track loaded yet>"), null, null));
566 }
567
568 JPanel panelCb = new JPanel();
569
570 panelCb.add(new JLabel(tr("GPX track: ")));
571
572 cbGpx = new JosmComboBox<>(gpxLst.toArray(new GpxDataWrapper[gpxLst.size()]));
573 if (defaultItem != null) {
574 cbGpx.setSelectedItem(defaultItem);
575 }
576 cbGpx.addActionListener(statusBarUpdaterWithRepaint);
577 panelCb.add(cbGpx);
578
579 JButton buttonOpen = new JButton(tr("Open another GPX trace"));
580 buttonOpen.addActionListener(new LoadGpxDataActionListener());
581 panelCb.add(buttonOpen);
582
583 JPanel panelTf = new JPanel(new GridBagLayout());
584
585 try {
586 timezone = Timezone.parseTimezone(Optional.ofNullable(Main.pref.get("geoimage.timezone", "0:00")).orElse("0:00"));
587 } catch (ParseException e) {
588 timezone = Timezone.ZERO;
589 }
590
591 tfTimezone = new JosmTextField(10);
592 tfTimezone.setText(timezone.formatTimezone());
593
594 try {
595 delta = Offset.parseOffset(Main.pref.get("geoimage.delta", "0"));
596 } catch (ParseException e) {
597 delta = Offset.ZERO;
598 }
599
600 tfOffset = new JosmTextField(10);
601 tfOffset.setText(delta.formatOffset());
602
603 JButton buttonViewGpsPhoto = new JButton(tr("<html>Use photo of an accurate clock,<br>"
604 + "e.g. GPS receiver display</html>"));
605 buttonViewGpsPhoto.setIcon(ImageProvider.get("clock"));
606 buttonViewGpsPhoto.addActionListener(new SetOffsetActionListener());
607
608 JButton buttonAutoGuess = new JButton(tr("Auto-Guess"));
609 buttonAutoGuess.setToolTipText(tr("Matches first photo with first gpx point"));
610 buttonAutoGuess.addActionListener(new AutoGuessActionListener());
611
612 JButton buttonAdjust = new JButton(tr("Manual adjust"));
613 buttonAdjust.addActionListener(new AdjustActionListener());
614
615 JLabel labelPosition = new JLabel(tr("Override position for: "));
616
617 int numAll = getSortedImgList(true, true).size();
618 int numExif = numAll - getSortedImgList(false, true).size();
619 int numTagged = numAll - getSortedImgList(true, false).size();
620
621 cbExifImg = new JCheckBox(tr("Images with geo location in exif data ({0}/{1})", numExif, numAll));
622 cbExifImg.setEnabled(numExif != 0);
623
624 cbTaggedImg = new JCheckBox(tr("Images that are already tagged ({0}/{1})", numTagged, numAll), true);
625 cbTaggedImg.setEnabled(numTagged != 0);
626
627 labelPosition.setEnabled(cbExifImg.isEnabled() || cbTaggedImg.isEnabled());
628
629 boolean ticked = yLayer.thumbsLoaded || Main.pref.getBoolean("geoimage.showThumbs", false);
630 cbShowThumbs = new JCheckBox(tr("Show Thumbnail images on the map"), ticked);
631 cbShowThumbs.setEnabled(!yLayer.thumbsLoaded);
632
633 int y = 0;
634 GBC gbc = GBC.eol();
635 gbc.gridx = 0;
636 gbc.gridy = y++;
637 panelTf.add(panelCb, gbc);
638
639 gbc = GBC.eol().fill(GBC.HORIZONTAL).insets(0, 0, 0, 12);
640 gbc.gridx = 0;
641 gbc.gridy = y++;
642 panelTf.add(new JSeparator(SwingConstants.HORIZONTAL), gbc);
643
644 gbc = GBC.std();
645 gbc.gridx = 0;
646 gbc.gridy = y;
647 panelTf.add(new JLabel(tr("Timezone: ")), gbc);
648
649 gbc = GBC.std().fill(GBC.HORIZONTAL);
650 gbc.gridx = 1;
651 gbc.gridy = y++;
652 gbc.weightx = 1.;
653 panelTf.add(tfTimezone, gbc);
654
655 gbc = GBC.std();
656 gbc.gridx = 0;
657 gbc.gridy = y;
658 panelTf.add(new JLabel(tr("Offset:")), gbc);
659
660 gbc = GBC.std().fill(GBC.HORIZONTAL);
661 gbc.gridx = 1;
662 gbc.gridy = y++;
663 gbc.weightx = 1.;
664 panelTf.add(tfOffset, gbc);
665
666 gbc = GBC.std().insets(5, 5, 5, 5);
667 gbc.gridx = 2;
668 gbc.gridy = y-2;
669 gbc.gridheight = 2;
670 gbc.gridwidth = 2;
671 gbc.fill = GridBagConstraints.BOTH;
672 gbc.weightx = 0.5;
673 panelTf.add(buttonViewGpsPhoto, gbc);
674
675 gbc = GBC.std().fill(GBC.BOTH).insets(5, 5, 5, 5);
676 gbc.gridx = 2;
677 gbc.gridy = y++;
678 gbc.weightx = 0.5;
679 panelTf.add(buttonAutoGuess, gbc);
680
681 gbc.gridx = 3;
682 panelTf.add(buttonAdjust, gbc);
683
684 gbc = GBC.eol().fill(GBC.HORIZONTAL).insets(0, 12, 0, 0);
685 gbc.gridx = 0;
686 gbc.gridy = y++;
687 panelTf.add(new JSeparator(SwingConstants.HORIZONTAL), gbc);
688
689 gbc = GBC.eol();
690 gbc.gridx = 0;
691 gbc.gridy = y++;
692 panelTf.add(labelPosition, gbc);
693
694 gbc = GBC.eol();
695 gbc.gridx = 1;
696 gbc.gridy = y++;
697 panelTf.add(cbExifImg, gbc);
698
699 gbc = GBC.eol();
700 gbc.gridx = 1;
701 gbc.gridy = y++;
702 panelTf.add(cbTaggedImg, gbc);
703
704 gbc = GBC.eol();
705 gbc.gridx = 0;
706 gbc.gridy = y;
707 panelTf.add(cbShowThumbs, gbc);
708
709 final JPanel statusBar = new JPanel(new FlowLayout(FlowLayout.LEFT, 0, 0));
710 statusBar.setBorder(BorderFactory.createLoweredBevelBorder());
711 statusBarText = new JLabel(" ");
712 statusBarText.setFont(statusBarText.getFont().deriveFont(8));
713 statusBar.add(statusBarText);
714
715 tfTimezone.addFocusListener(repaintTheMap);
716 tfOffset.addFocusListener(repaintTheMap);
717
718 tfTimezone.getDocument().addDocumentListener(statusBarUpdater);
719 tfOffset.getDocument().addDocumentListener(statusBarUpdater);
720 cbExifImg.addItemListener(statusBarUpdaterWithRepaint);
721 cbTaggedImg.addItemListener(statusBarUpdaterWithRepaint);
722
723 statusBarUpdater.updateStatusBar();
724
725 outerPanel = new JPanel(new BorderLayout());
726 outerPanel.add(statusBar, BorderLayout.PAGE_END);
727
728 if (!GraphicsEnvironment.isHeadless()) {
729 syncDialog = new ExtendedDialog(
730 Main.parent,
731 tr("Correlate images with GPX track"),
732 new String[] {tr("Correlate"), tr("Cancel")},
733 false
734 );
735 syncDialog.setContent(panelTf, false);
736 syncDialog.setButtonIcons("ok", "cancel");
737 syncDialog.setupDialog();
738 outerPanel.add(syncDialog.getContentPane(), BorderLayout.PAGE_START);
739 syncDialog.setContentPane(outerPanel);
740 syncDialog.pack();
741 syncDialog.addWindowListener(new SyncDialogWindowListener());
742 syncDialog.showDialog();
743 }
744 }
745
746 private final transient StatusBarUpdater statusBarUpdater = new StatusBarUpdater(false);
747 private final transient StatusBarUpdater statusBarUpdaterWithRepaint = new StatusBarUpdater(true);
748
749 private class StatusBarUpdater implements DocumentListener, ItemListener, ActionListener {
750 private final boolean doRepaint;
751
752 StatusBarUpdater(boolean doRepaint) {
753 this.doRepaint = doRepaint;
754 }
755
756 @Override
757 public void insertUpdate(DocumentEvent ev) {
758 updateStatusBar();
759 }
760
761 @Override
762 public void removeUpdate(DocumentEvent ev) {
763 updateStatusBar();
764 }
765
766 @Override
767 public void changedUpdate(DocumentEvent ev) {
768 // Do nothing
769 }
770
771 @Override
772 public void itemStateChanged(ItemEvent e) {
773 updateStatusBar();
774 }
775
776 @Override
777 public void actionPerformed(ActionEvent e) {
778 updateStatusBar();
779 }
780
781 public void updateStatusBar() {
782 statusBarText.setText(statusText());
783 if (doRepaint) {
784 yLayer.updateBufferAndRepaint();
785 }
786 }
787
788 private String statusText() {
789 try {
790 timezone = Timezone.parseTimezone(tfTimezone.getText().trim());
791 delta = Offset.parseOffset(tfOffset.getText().trim());
792 } catch (ParseException e) {
793 return e.getMessage();
794 }
795
796 // The selection of images we are about to correlate may have changed.
797 // So reset all images.
798 if (yLayer.data != null) {
799 for (ImageEntry ie: yLayer.data) {
800 ie.discardTmp();
801 }
802 }
803
804 // Construct a list of images that have a date, and sort them on the date.
805 List<ImageEntry> dateImgLst = getSortedImgList();
806 // Create a temporary copy for each image
807 for (ImageEntry ie : dateImgLst) {
808 ie.createTmp();
809 ie.tmp.setPos(null);
810 }
811
812 GpxDataWrapper selGpx = selectedGPX(false);
813 if (selGpx == null)
814 return tr("No gpx selected");
815
816 final long offsetMs = ((long) (timezone.getHours() * TimeUnit.HOURS.toMillis(1))) + delta.getMilliseconds(); // in milliseconds
817 lastNumMatched = matchGpxTrack(dateImgLst, selGpx.data, offsetMs);
818
819 return trn("<html>Matched <b>{0}</b> of <b>{1}</b> photo to GPX track.</html>",
820 "<html>Matched <b>{0}</b> of <b>{1}</b> photos to GPX track.</html>",
821 dateImgLst.size(), lastNumMatched, dateImgLst.size());
822 }
823 }
824
825 private final transient RepaintTheMapListener repaintTheMap = new RepaintTheMapListener();
826
827 private class RepaintTheMapListener implements FocusListener {
828 @Override
829 public void focusGained(FocusEvent e) { // do nothing
830 }
831
832 @Override
833 public void focusLost(FocusEvent e) {
834 yLayer.updateBufferAndRepaint();
835 }
836 }
837
838 /**
839 * Presents dialog with sliders for manual adjust.
840 */
841 private class AdjustActionListener implements ActionListener {
842
843 @Override
844 public void actionPerformed(ActionEvent arg0) {
845
846 final Offset offset = Offset.milliseconds(
847 delta.getMilliseconds() + Math.round(timezone.getHours() * TimeUnit.HOURS.toMillis(1)));
848 final int dayOffset = offset.getDayOffset();
849 final Pair<Timezone, Offset> timezoneOffsetPair = offset.withoutDayOffset().splitOutTimezone();
850
851 // Info Labels
852 final JLabel lblMatches = new JLabel();
853
854 // Timezone Slider
855 // The slider allows to switch timezon from -12:00 to 12:00 in 30 minutes steps. Therefore the range is -24 to 24.
856 final JLabel lblTimezone = new JLabel();
857 final JSlider sldTimezone = new JSlider(-24, 24, 0);
858 sldTimezone.setPaintLabels(true);
859 Dictionary<Integer, JLabel> labelTable = new Hashtable<>();
860 // CHECKSTYLE.OFF: ParenPad
861 for (int i = -12; i <= 12; i += 6) {
862 labelTable.put(i * 2, new JLabel(new Timezone(i).formatTimezone()));
863 }
864 // CHECKSTYLE.ON: ParenPad
865 sldTimezone.setLabelTable(labelTable);
866
867 // Minutes Slider
868 final JLabel lblMinutes = new JLabel();
869 final JSlider sldMinutes = new JSlider(-15, 15, 0);
870 sldMinutes.setPaintLabels(true);
871 sldMinutes.setMajorTickSpacing(5);
872
873 // Seconds slider
874 final JLabel lblSeconds = new JLabel();
875 final JSlider sldSeconds = new JSlider(-600, 600, 0);
876 sldSeconds.setPaintLabels(true);
877 labelTable = new Hashtable<>();
878 // CHECKSTYLE.OFF: ParenPad
879 for (int i = -60; i <= 60; i += 30) {
880 labelTable.put(i * 10, new JLabel(Offset.seconds(i).formatOffset()));
881 }
882 // CHECKSTYLE.ON: ParenPad
883 sldSeconds.setLabelTable(labelTable);
884 sldSeconds.setMajorTickSpacing(300);
885
886 // This is called whenever one of the sliders is moved.
887 // It updates the labels and also calls the "match photos" code
888 class SliderListener implements ChangeListener {
889 @Override
890 public void stateChanged(ChangeEvent e) {
891 timezone = new Timezone(sldTimezone.getValue() / 2.);
892
893 lblTimezone.setText(tr("Timezone: {0}", timezone.formatTimezone()));
894 lblMinutes.setText(tr("Minutes: {0}", sldMinutes.getValue()));
895 lblSeconds.setText(tr("Seconds: {0}", Offset.milliseconds(100L * sldSeconds.getValue()).formatOffset()));
896
897 delta = Offset.milliseconds(100L * sldSeconds.getValue()
898 + TimeUnit.MINUTES.toMillis(sldMinutes.getValue())
899 + TimeUnit.DAYS.toMillis(dayOffset));
900
901 tfTimezone.getDocument().removeDocumentListener(statusBarUpdater);
902 tfOffset.getDocument().removeDocumentListener(statusBarUpdater);
903
904 tfTimezone.setText(timezone.formatTimezone());
905 tfOffset.setText(delta.formatOffset());
906
907 tfTimezone.getDocument().addDocumentListener(statusBarUpdater);
908 tfOffset.getDocument().addDocumentListener(statusBarUpdater);
909
910 lblMatches.setText(statusBarText.getText() + "<br>" + trn("(Time difference of {0} day)",
911 "Time difference of {0} days", Math.abs(dayOffset), Math.abs(dayOffset)));
912
913 statusBarUpdater.updateStatusBar();
914 yLayer.updateBufferAndRepaint();
915 }
916 }
917
918 // Put everything together
919 JPanel p = new JPanel(new GridBagLayout());
920 p.setPreferredSize(new Dimension(400, 230));
921 p.add(lblMatches, GBC.eol().fill());
922 p.add(lblTimezone, GBC.eol().fill());
923 p.add(sldTimezone, GBC.eol().fill().insets(0, 0, 0, 10));
924 p.add(lblMinutes, GBC.eol().fill());
925 p.add(sldMinutes, GBC.eol().fill().insets(0, 0, 0, 10));
926 p.add(lblSeconds, GBC.eol().fill());
927 p.add(sldSeconds, GBC.eol().fill());
928
929 // If there's an error in the calculation the found values
930 // will be off range for the sliders. Catch this error
931 // and inform the user about it.
932 try {
933 sldTimezone.setValue((int) (timezoneOffsetPair.a.getHours() * 2));
934 sldMinutes.setValue((int) (timezoneOffsetPair.b.getSeconds() / 60));
935 final long deciSeconds = timezoneOffsetPair.b.getMilliseconds() / 100;
936 sldSeconds.setValue((int) (deciSeconds % 60));
937 } catch (JosmRuntimeException | IllegalArgumentException | IllegalStateException e) {
938 Logging.warn(e);
939 JOptionPane.showMessageDialog(Main.parent,
940 tr("An error occurred while trying to match the photos to the GPX track."
941 +" You can adjust the sliders to manually match the photos."),
942 tr("Matching photos to track failed"),
943 JOptionPane.WARNING_MESSAGE);
944 }
945
946 // Call the sliderListener once manually so labels get adjusted
947 new SliderListener().stateChanged(null);
948 // Listeners added here, otherwise it tries to match three times
949 // (when setting the default values)
950 sldTimezone.addChangeListener(new SliderListener());
951 sldMinutes.addChangeListener(new SliderListener());
952 sldSeconds.addChangeListener(new SliderListener());
953
954 // There is no way to cancel this dialog, all changes get applied
955 // immediately. Therefore "Close" is marked with an "OK" icon.
956 // Settings are only saved temporarily to the layer.
957 new ExtendedDialog(Main.parent,
958 tr("Adjust timezone and offset"),
959 tr("Close")).
960 setContent(p).setButtonIcons("ok").showDialog();
961 }
962 }
963
964 static class NoGpxTimestamps extends Exception {
965 }
966
967 /**
968 * Tries to auto-guess the timezone and offset.
969 *
970 * @param imgs the images to correlate
971 * @param gpx the gpx track to correlate to
972 * @return a pair of timezone and offset
973 * @throws IndexOutOfBoundsException when there are no images
974 * @throws NoGpxTimestamps when the gpx track does not contain a timestamp
975 */
976 static Pair<Timezone, Offset> autoGuess(List<ImageEntry> imgs, GpxData gpx) throws NoGpxTimestamps {
977
978 // Init variables
979 long firstExifDate = imgs.get(0).getExifTime().getTime();
980
981 long firstGPXDate = -1;
982 // Finds first GPX point
983 outer: for (GpxTrack trk : gpx.tracks) {
984 for (GpxTrackSegment segment : trk.getSegments()) {
985 for (WayPoint curWp : segment.getWayPoints()) {
986 final Date parsedTime = curWp.setTimeFromAttribute();
987 if (parsedTime != null) {
988 firstGPXDate = parsedTime.getTime();
989 break outer;
990 }
991 }
992 }
993 }
994
995 if (firstGPXDate < 0) {
996 throw new NoGpxTimestamps();
997 }
998
999 return Offset.milliseconds(firstExifDate - firstGPXDate).splitOutTimezone();
1000 }
1001
1002 private class AutoGuessActionListener implements ActionListener {
1003
1004 @Override
1005 public void actionPerformed(ActionEvent arg0) {
1006 GpxDataWrapper gpxW = selectedGPX(true);
1007 if (gpxW == null)
1008 return;
1009 GpxData gpx = gpxW.data;
1010
1011 List<ImageEntry> imgs = getSortedImgList();
1012
1013 try {
1014 final Pair<Timezone, Offset> r = autoGuess(imgs, gpx);
1015 timezone = r.a;
1016 delta = r.b;
1017 } catch (IndexOutOfBoundsException ex) {
1018 Logging.debug(ex);
1019 JOptionPane.showMessageDialog(Main.parent,
1020 tr("The selected photos do not contain time information."),
1021 tr("Photos do not contain time information"), JOptionPane.WARNING_MESSAGE);
1022 return;
1023 } catch (NoGpxTimestamps ex) {
1024 Logging.debug(ex);
1025 JOptionPane.showMessageDialog(Main.parent,
1026 tr("The selected GPX track does not contain timestamps. Please select another one."),
1027 tr("GPX Track has no time information"), JOptionPane.WARNING_MESSAGE);
1028 return;
1029 }
1030
1031 tfTimezone.getDocument().removeDocumentListener(statusBarUpdater);
1032 tfOffset.getDocument().removeDocumentListener(statusBarUpdater);
1033
1034 tfTimezone.setText(timezone.formatTimezone());
1035 tfOffset.setText(delta.formatOffset());
1036 tfOffset.requestFocus();
1037
1038 tfTimezone.getDocument().addDocumentListener(statusBarUpdater);
1039 tfOffset.getDocument().addDocumentListener(statusBarUpdater);
1040
1041 statusBarUpdater.updateStatusBar();
1042 yLayer.updateBufferAndRepaint();
1043 }
1044 }
1045
1046 private List<ImageEntry> getSortedImgList() {
1047 return getSortedImgList(cbExifImg.isSelected(), cbTaggedImg.isSelected());
1048 }
1049
1050 /**
1051 * Returns a list of images that fulfill the given criteria.
1052 * Default setting is to return untagged images, but may be overwritten.
1053 * @param exif also returns images with exif-gps info
1054 * @param tagged also returns tagged images
1055 * @return matching images
1056 */
1057 private List<ImageEntry> getSortedImgList(boolean exif, boolean tagged) {
1058 if (yLayer.data == null) {
1059 return Collections.emptyList();
1060 }
1061 List<ImageEntry> dateImgLst = new ArrayList<>(yLayer.data.size());
1062 for (ImageEntry e : yLayer.data) {
1063 if (!e.hasExifTime()) {
1064 continue;
1065 }
1066
1067 if (e.getExifCoor() != null && !exif) {
1068 continue;
1069 }
1070
1071 if (!tagged && e.isTagged() && e.getExifCoor() == null) {
1072 continue;
1073 }
1074
1075 dateImgLst.add(e);
1076 }
1077
1078 dateImgLst.sort(Comparator.comparing(ImageEntry::getExifTime));
1079
1080 return dateImgLst;
1081 }
1082
1083 private GpxDataWrapper selectedGPX(boolean complain) {
1084 Object item = cbGpx.getSelectedItem();
1085
1086 if (item == null || ((GpxDataWrapper) item).file == null) {
1087 if (complain) {
1088 JOptionPane.showMessageDialog(Main.parent, tr("You should select a GPX track"),
1089 tr("No selected GPX track"), JOptionPane.ERROR_MESSAGE);
1090 }
1091 return null;
1092 }
1093 return (GpxDataWrapper) item;
1094 }
1095
1096 /**
1097 * Match a list of photos to a gpx track with a given offset.
1098 * All images need a exifTime attribute and the List must be sorted according to these times.
1099 * @param images images to match
1100 * @param selectedGpx selected GPX data
1101 * @param offset offset
1102 * @return number of matched points
1103 */
1104 static int matchGpxTrack(List<ImageEntry> images, GpxData selectedGpx, long offset) {
1105 int ret = 0;
1106
1107 for (GpxTrack trk : selectedGpx.tracks) {
1108 for (GpxTrackSegment segment : trk.getSegments()) {
1109
1110 long prevWpTime = 0;
1111 WayPoint prevWp = null;
1112
1113 for (WayPoint curWp : segment.getWayPoints()) {
1114 final Date parsedTime = curWp.setTimeFromAttribute();
1115 if (parsedTime != null) {
1116 final long curWpTime = parsedTime.getTime() + offset;
1117 ret += matchPoints(images, prevWp, prevWpTime, curWp, curWpTime, offset);
1118
1119 prevWp = curWp;
1120 prevWpTime = curWpTime;
1121 continue;
1122 }
1123 prevWp = null;
1124 prevWpTime = 0;
1125 }
1126 }
1127 }
1128 return ret;
1129 }
1130
1131 private static Double getElevation(WayPoint wp) {
1132 String value = wp.getString(GpxConstants.PT_ELE);
1133 if (value != null && !value.isEmpty()) {
1134 try {
1135 return Double.valueOf(value);
1136 } catch (NumberFormatException e) {
1137 Logging.warn(e);
1138 }
1139 }
1140 return null;
1141 }
1142
1143 static int matchPoints(List<ImageEntry> images, WayPoint prevWp, long prevWpTime,
1144 WayPoint curWp, long curWpTime, long offset) {
1145 // Time between the track point and the previous one, 5 sec if first point, i.e. photos take
1146 // 5 sec before the first track point can be assumed to be take at the starting position
1147 long interval = prevWpTime > 0 ? Math.abs(curWpTime - prevWpTime) : TimeUnit.SECONDS.toMillis(5);
1148 int ret = 0;
1149
1150 // i is the index of the timewise last photo that has the same or earlier EXIF time
1151 int i = getLastIndexOfListBefore(images, curWpTime);
1152
1153 // no photos match
1154 if (i < 0)
1155 return 0;
1156
1157 Double speed = null;
1158 Double prevElevation = null;
1159
1160 if (prevWp != null) {
1161 double distance = prevWp.getCoor().greatCircleDistance(curWp.getCoor());
1162 // This is in km/h, 3.6 * m/s
1163 if (curWpTime > prevWpTime) {
1164 speed = 3600 * distance / (curWpTime - prevWpTime);
1165 }
1166 prevElevation = getElevation(prevWp);
1167 }
1168
1169 Double curElevation = getElevation(curWp);
1170
1171 // First trackpoint, then interval is set to five seconds, i.e. photos up to five seconds
1172 // before the first point will be geotagged with the starting point
1173 if (prevWpTime == 0 || curWpTime <= prevWpTime) {
1174 while (i >= 0) {
1175 final ImageEntry curImg = images.get(i);
1176 long time = curImg.getExifTime().getTime();
1177 if (time > curWpTime || time < curWpTime - interval) {
1178 break;
1179 }
1180 if (curImg.tmp.getPos() == null) {
1181 curImg.tmp.setPos(curWp.getCoor());
1182 curImg.tmp.setSpeed(speed);
1183 curImg.tmp.setElevation(curElevation);
1184 curImg.tmp.setGpsTime(new Date(curImg.getExifTime().getTime() - offset));
1185 curImg.flagNewGpsData();
1186 ret++;
1187 }
1188 i--;
1189 }
1190 return ret;
1191 }
1192
1193 // This code gives a simple linear interpolation of the coordinates between current and
1194 // previous track point assuming a constant speed in between
1195 while (i >= 0) {
1196 ImageEntry curImg = images.get(i);
1197 long imgTime = curImg.getExifTime().getTime();
1198 if (imgTime < prevWpTime) {
1199 break;
1200 }
1201
1202 if (prevWp != null && curImg.tmp.getPos() == null) {
1203 // The values of timeDiff are between 0 and 1, it is not seconds but a dimensionless variable
1204 double timeDiff = (double) (imgTime - prevWpTime) / interval;
1205 curImg.tmp.setPos(prevWp.getCoor().interpolate(curWp.getCoor(), timeDiff));
1206 curImg.tmp.setSpeed(speed);
1207 if (curElevation != null && prevElevation != null) {
1208 curImg.tmp.setElevation(prevElevation + (curElevation - prevElevation) * timeDiff);
1209 }
1210 curImg.tmp.setGpsTime(new Date(curImg.getExifTime().getTime() - offset));
1211 curImg.flagNewGpsData();
1212
1213 ret++;
1214 }
1215 i--;
1216 }
1217 return ret;
1218 }
1219
1220 private static int getLastIndexOfListBefore(List<ImageEntry> images, long searchedTime) {
1221 int lstSize = images.size();
1222
1223 // No photos or the first photo taken is later than the search period
1224 if (lstSize == 0 || searchedTime < images.get(0).getExifTime().getTime())
1225 return -1;
1226
1227 // The search period is later than the last photo
1228 if (searchedTime > images.get(lstSize - 1).getExifTime().getTime())
1229 return lstSize-1;
1230
1231 // The searched index is somewhere in the middle, do a binary search from the beginning
1232 int curIndex;
1233 int startIndex = 0;
1234 int endIndex = lstSize-1;
1235 while (endIndex - startIndex > 1) {
1236 curIndex = (endIndex + startIndex) / 2;
1237 if (searchedTime > images.get(curIndex).getExifTime().getTime()) {
1238 startIndex = curIndex;
1239 } else {
1240 endIndex = curIndex;
1241 }
1242 }
1243 if (searchedTime < images.get(endIndex).getExifTime().getTime())
1244 return startIndex;
1245
1246 // This final loop is to check if photos with the exact same EXIF time follows
1247 while ((endIndex < (lstSize-1)) && (images.get(endIndex).getExifTime().getTime()
1248 == images.get(endIndex + 1).getExifTime().getTime())) {
1249 endIndex++;
1250 }
1251 return endIndex;
1252 }
1253}
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